CN110958673A

CN110958673A - Method for determining activation state of secondary cell and user equipment

Info

Publication number: CN110958673A
Application number: CN201910262503.9A
Authority: CN
Inventors: 付景兴; 钱辰; 喻斌; 孙霏菲
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecom R&D Center; Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2018-09-27
Filing date: 2019-04-02
Publication date: 2020-04-03
Also published as: EP3847776A4; EP3847776A1

Abstract

The embodiment of the application provides a method for determining an activation state of a secondary cell and user equipment. The method is applied to the technical field of wireless communication, and comprises the following steps: acquiring the activation state indication information of the secondary cell, and then determining the state corresponding to at least one secondary cell configured by the UE or reconfigured based on the activation state indication information of the secondary cell, wherein the state comprises: an active state and an inactive state. According to the embodiment of the application, the time delay of receiving or sending data by the user equipment is reduced, the time required for deactivating one auxiliary cell is reduced, and the power consumption of the UE can be further reduced.

Description

Method for determining activation state of secondary cell and user equipment

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to a method for determining an activation state of a secondary cell and a user equipment.

Background

In a New Radio (NR) air interface system, in order to increase data throughput of a User Equipment (UE), the UE may operate in a carrier aggregation state, that is, the UE may receive data and/or transmit data in multiple serving cells at the same time, and a base station may activate or deactivate an auxiliary cell through a media access layer (MAC layer) signaling according to a traffic volume required to be transmitted and received by the UE and a performance of each serving cell. However, it takes more power to operate the UE in the carrier aggregation state than in the case of operating the UE in one serving cell, and if the data amount of the UE is not large, the carrier aggregation state does not necessarily exist for the UE to operate. In the existing protocol, the time required for activating and/or deactivating a media access layer (MAC layer) signaling is longer, and the time for activating a cell is longer, so that the time delay for receiving or sending data by user equipment is longer; the time required to deactivate a secondary cell is relatively long, resulting in a large power consumption of the UE.

Disclosure of Invention

The application provides a method for determining an activation state of a secondary cell and user equipment, which can solve the problems that the time delay of uplink and downlink sending or data receiving of the user equipment is long and the power consumption of the user equipment is large. The technical scheme is as follows:

in a first aspect, a method for determining a secondary cell activation state is provided, including:

acquiring the activation state indication information of the secondary cell;

determining, based on the secondary cell activation status indication information, a status corresponding to at least one secondary cell configured or reconfigured by the UE, where the status includes: an active state and an inactive state.

In a second aspect, a user equipment UE is provided, including:

the acquisition module is used for acquiring the activation state indication information of the secondary cell;

a first determining module, configured to determine, based on the secondary cell activation status indication information acquired by the acquiring module, respective corresponding statuses of at least one secondary cell configured or reconfigured by the UE, where the statuses include: an active state and an inactive state.

In a third aspect, a user equipment UE is provided, including: an antenna;

a processor; and

a memory configured to store machine readable instructions which, when executed by the processor, cause the processor to perform the method of secondary cell activation state determination shown in the first aspect.

The technical scheme provided by the embodiment of the application has the following beneficial effects:

compared with the prior art in which the activation state or the deactivation state of one auxiliary cell is determined through media access layer signaling, the method obtains the activation state indication information of the auxiliary cell, and then determines the state corresponding to at least one auxiliary cell configured or reconfigured by the UE based on the activation state indication information of the auxiliary cell, wherein the state comprises the following steps: an active state and an inactive state. That is, the time delay of the state corresponding to any one of the secondary cells determined by the user equipment UE according to the secondary cell activation state indication information is shorter than the time delay of the state corresponding to the state determined by the medium access layer signaling for activating or deactivating the secondary cell, so that the time delay of the activation and/or deactivation of the secondary cell can be reduced, the time delay of receiving or sending data by the user equipment UE can be further reduced, and the power consumption of the UE can be reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments of the present application will be briefly described below.

Fig. 1 is a schematic flowchart of a method for determining an activation state of a secondary cell according to an embodiment of the present application;

fig. 2 is a schematic diagram illustrating a mapping relationship of CADI indicating states of respective secondary cells in an embodiment of the present application;

fig. 3 is a schematic diagram of an activation time of a secondary cell in an embodiment of the present application;

fig. 4 is a schematic diagram of another secondary cell activation time in the embodiment of the present application;

fig. 5 is a schematic diagram of another secondary cell activation time in the embodiment of the present application;

fig. 6 is a schematic diagram illustrating that the activation time and the deactivation time of the secondary cell in the embodiment of the present application use the same timing relationship;

fig. 7 is a schematic diagram of different timing relationships adopted for the activation time and the deactivation time of the secondary cell;

fig. 8 is a schematic diagram illustrating a BWP conversion operation of a user equipment UE according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of an apparatus of a user equipment UE in an embodiment of the present application;

fig. 10 is a schematic structural diagram of another apparatus of a user equipment UE in the embodiment of the present application;

fig. 11 is a schematic structural diagram of a user equipment UE in an embodiment of the present application;

FIG. 12 is a block diagram of a computing system in an embodiment of the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

In order to solve the technical problem in the prior art, it is necessary to provide a method capable of activating and/or deactivating a secondary cell more quickly to reduce the time delay of activation and/or deactivation of the secondary cell, and ensure the throughput level of the UE for transmitting and receiving data while saving the power consumption of the UE.

Specifically, when the amount of data that the UE needs to send or receive is not large, the UE may only activate a part of the configured or reconfigured secondary cells, or only activate one secondary cell, which may save power consumption of the UE.

The following describes a method for determining respective corresponding states of at least one secondary cell and activating and/or deactivating the secondary cell by using a specific embodiment, as follows:

the embodiment of the present application describes that when a UE configures more than one Downlink serving cell (including a primary cell and a secondary cell), and when the amount of data that the UE needs to receive or send is not large, the UE receives data and Control signaling only in a part of the configured serving cells or sends data, that is, the UE has at least one activated Downlink serving cell (if only one Downlink serving cell is the primary cell, if there are multiple Downlink serving cells, the UE may include one primary cell and at least one secondary cell), or when the UE needs to receive or has a large amount of data, the UE may receive data and Control signaling in all configured serving cells (the primary cell and all secondary cells), the UE receives a Physical Downlink Control Channel (PDCCH) and a Physical Downlink shared Channel (PDCCH, PDSCH) only on the activated Downlink serving cell, and the UE does not receive data and Control signaling in a non-activated Downlink serving cell (including only a non-activated Downlink cell) and does not receive data in a non-activated Downlink serving cell (including a non-activated Downlink cell) and a non-activated Downlink cell) And a PDSCH.

The UE determines one or more activated downlink secondary cells by receiving media access layer signaling. For example, the UE configures or reconfigures 4 secondary serving cells by receiving a UE-specific higher layer signaling, and determines 2 activated downlink secondary cells by receiving a media access layer signaling, and at this time, the UE may simultaneously receive the PDCCH and the PDSCH on the 2 activated secondary serving cells and the primary cell.

Then, the UE dynamically changes the activation state of the downlink secondary cell by receiving physical layer signaling, where the state of the downlink secondary cell includes an activation state and an inactivation state, that is, the UE may receive a PDCCH and a PDSCH on the activated downlink secondary cell and the primary cell, the UE may not receive the PDCCH and the PDSCH on the inactivated downlink secondary cell, the downlink secondary cell may change from the activation state to the inactivation state or from the inactivation state to the activation state, and the UE dynamically changes the activation state of the downlink secondary cell by physical layer signaling (for example, the physical layer signaling may be DCI) and/or a timer, as shown below:

fig. 1 is a schematic flow chart of a method for determining an activation state of a secondary cell, as follows:

and step S101, acquiring the activation state indication information of the secondary cell.

Step S102, based on the secondary cell activation state indication information, determining the state corresponding to at least one secondary cell configured or reconfigured by the UE.

In step S102, the states corresponding to at least one secondary cell respectively include: an active state and an inactive state.

Specifically, step S101 includes at least one of step S1011 (not shown in the figure) and step S1012 (not shown in the figure), wherein,

step S1011, acquiring the secondary cell activation state indication information from the received downlink control information DCI.

Step S1012, obtaining activation status indication information corresponding to each secondary cell currently in the activation status through a pre-configured timer corresponding to each secondary cell currently in the activation status.

For the embodiment of the present application, the activation state indication information of the secondary cell is obtained from the received DCI and/or the activation state indication information corresponding to each secondary cell currently in the activation state is obtained by a pre-configured timer corresponding to each secondary cell currently in the activation state, so that the state corresponding to at least one secondary cell configured or reconfigured by the UE can be determined, that is, the time delay for determining the state corresponding to any secondary cell by the UE according to the information is shorter than the time delay for determining to activate or deactivate the secondary cell by the mac signaling, so that the time delay for activating and/or deactivating the secondary cell can be reduced, the time delay for receiving or transmitting data by the UE can be reduced, and the power consumption of the UE can be reduced.

Specifically, step S1011 includes: at least one of the steps S1011a (not shown), S1011b (not shown) and S1011c (not shown), wherein,

step S1011a, acquiring the secondary cell activation indication information CAI of the secondary cell corresponding to the scheduled PDSCH from the DCI in the physical downlink control channel PDCCH used for scheduling the physical downlink shared channel PDSCH.

Step S1011b, acquiring the secondary cell deactivation indication CDI information of the secondary cell corresponding to the scheduled PDSCH from the DCI in the PDCCH for scheduling the PDSCH.

Step S1011c, acquiring secondary cell activation/deactivation indication CADI information from DCI received in PDCCH dedicated for indicating activation/deactivation of downlink secondary cell.

Specifically, step S1012 includes step S1012a (not shown in the figure), wherein,

step S1012a, acquiring a pre-configured current value of the timer corresponding to the secondary cell currently in the activated state as the activation state indication information corresponding to the secondary cell currently in the activated state.

Specifically, step S102 includes at least one of step S1021 (not shown in the figure), step S1022 (not shown in the figure), step S1023 (not shown in the figure), and step S1024 (not shown in the figure), wherein,

and step S1021, determining the state of the secondary cell corresponding to the scheduled PDSCH based on the CAI in the PDCCH for scheduling the PDSCH.

Step S1022, determining the state of the secondary cell corresponding to the scheduled PDSCH based on the CDI in the PDCCH for scheduling the PDSCH.

Step S1023, determining the state corresponding to each secondary cell configured or reconfigured by the UE based on the CADI information in the PDCCH for scheduling the PDSCH.

Step S1024, determining the state corresponding to the secondary cell in the activated state based on the pre-configured current value of the timer and the pre-configured timing value corresponding to the secondary cell in the activated state.

Specifically, step S1024 includes step S1024a (not shown in the figure) and step S1024b (not shown in the figure), wherein,

step S1024a, when the current value of the preconfigured timer corresponding to the secondary cell currently in the activated state is not less than the preconfigured timer value, determining that the secondary cell currently in the activated state needs to be changed from the activated state to the deactivated state.

Step S1024b, when the current value of the preconfigured timer corresponding to the currently activated secondary cell is smaller than the preconfigured timing value, determining that the currently activated secondary cell is still in the activated state.

Further, the method further comprises: step Sa (not shown in the figure), in which,

and Sa, when the DCI is not acquired in a preset time unit, determining the state corresponding to the auxiliary cell in the current activation state based on the pre-configured current timer value and the pre-configured timing value corresponding to the auxiliary cell in the current activation state.

For the embodiment of the application, when the CDI and/or the CADI are not obtained within the preset time, the state corresponding to the secondary cell currently in the activated state is determined based on the pre-configured current timer value and the pre-configured timing value corresponding to the secondary cell currently in the activated state.

In one possible implementation manner, step S102 may further include: and detecting the PDCCH in the determined secondary cell in the activated state.

For the embodiment of the present application, if the PDCCH is detected, downlink data is received.

Further, the method comprises a step Sb (not shown in the figure), wherein,

and Sb, determining the activation time corresponding to the auxiliary cell to be activated and/or the deactivation time corresponding to the auxiliary cell to be deactivated.

Step Sb may be executed simultaneously with step S102, or may be executed after step S102. The embodiments of the present application are not limited.

For the embodiment of the present application, the secondary cell to be activated in step Sb is a secondary cell to be converted from an inactive state to an active state, and the secondary cell to be deactivated is a secondary cell to be converted from an active state to an inactive state.

Specifically, step Sb includes step Sb1 (not shown), step Sb2 (not shown), and step Sb3 (not shown), wherein,

step Sb1, a reference time cell is determined.

And step Sb2, determining a reference time according to the determined reference time unit.

And step Sb3, determining an activation time corresponding to the secondary cell to be activated and/or a deactivation time corresponding to the secondary cell to be deactivated according to the determined reference time.

Specifically, step Sb2 includes: at least one of step Sb2a (not shown) and step Sb2b (not shown), wherein,

and step Sb2a, determining an activation reference time corresponding to the secondary cell to be activated based on the received cell activation timing relationship indication CATI.

And step Sb2b, determining the deactivation reference time of the secondary cell to be deactivated through the received high-layer signaling.

Specifically, step Sb2a includes step Sb2a1 (not shown in the figure), wherein,

and step Sb2a1, determining an activation reference time corresponding to the secondary cell to be activated, based on the number of reference time units carried by the CATI for indicating a difference between the time when the CADI is received and the reference time when the secondary cell is activated and/or deactivated.

Specifically, step Sb2b includes step Sb2b1 (not shown in the figure), wherein,

and step Sb2b1, determining the deactivation reference time of the secondary cell to be deactivated based on the number of reference time units carried in the high-level signaling and used for the difference between the time of receiving the CADI and the deactivation reference time of the secondary cell.

In one possible implementation, the duration of the reference time unit includes at least one of: presetting a time length value; a slot length of a maximum Bandwidth Part (BWP) of a subcarrier space in the secondary cell to be activated or the secondary cell to be deactivated or an Orthogonal Frequency Division Multiplexing (OFDM) symbol length; the time slot length or OFDM symbol length of the BWP with the smallest subcarrier space in the secondary cell to be activated or the secondary cell to be deactivated; a time length value configured by higher layer signaling.

Specifically, step Sb3 includes: at least one of step Sb3a (not shown) and step Sb3b (not shown), wherein,

and step Sb3a, taking a time at which the secondary cell to be activated and/or deactivated overlaps with the reference time as an activation time corresponding to the secondary cell to be activated and/or a deactivation time corresponding to the secondary cell to be deactivated.

And step Sb3b, taking the next time of the time when the secondary cell to be activated and/or deactivated overlaps with the reference time as the activation time corresponding to the secondary cell to be activated and/or the deactivation time corresponding to the secondary cell to be deactivated.

Compared with the prior art in which the activation state or the deactivation state of one secondary cell is determined through media access layer signaling, the method for determining the activation state of the secondary cell obtains the activation state indication information of the secondary cell, and then determines the state corresponding to at least one secondary cell configured or reconfigured by the UE based on the activation state indication information of the secondary cell, where the state includes: an active state and an inactive state. That is, the time delay of the state corresponding to any one of the secondary cells determined by the user equipment UE according to the secondary cell activation state indication information is shorter than the time delay of the state corresponding to the state determined by the medium access layer signaling for activating or deactivating the secondary cell, so that the time delay of the activation and/or deactivation of the secondary cell can be reduced, the time delay of receiving or sending data by the user equipment UE can be further reduced, and the power consumption of the UE can be reduced.

The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.

The serving cell activation state determining method according to the present application is explained below by several embodiments, where the activation Information may be any form of Information having a function of indicating the determination of the activation state of the secondary cell, and for example, may be indication Information in Downlink Control Information (DCI) received by the UE, where the activation state of the secondary cell indicates whether the secondary cell is a serving cell in an activation state or a serving cell in a non-activation state. The activation state of the secondary cell can be changed, the activation state of the primary cell can not be changed, the primary cell is always in the activation state, and the following serving cell for changing the activation state refers to changing the activation state of the secondary cell.

The method for determining the activation state of the secondary cell includes a first embodiment, a second embodiment and a third embodiment, wherein the first embodiment introduces a mode of determining the secondary cell in the activation state or the secondary cell in the deactivation state by receiving DCI in a PDCCH for scheduling a PDSCH, and/or a mode of determining the secondary cell in the deactivation state by a timer; the second embodiment mainly introduces a method for determining a secondary cell in an activated state or a secondary cell in a deactivated state by receiving DCI in a PDCCH dedicated for indicating activation or deactivation of a downlink secondary cell, and/or determining a secondary cell in a deactivated state by a timer; the third embodiment mainly introduces a method for determining the time of activating a cell and/or the time of deactivating the cell, which is specifically as follows:

example one

The embodiment of the present application introduces a method for determining an activated secondary Cell or a deactivated secondary Cell by receiving DCI in a PDCCH for scheduling a PDSCH, and/or determining a deactivated secondary Cell by using a timer, where the method includes a first specific example, a second specific example, a third specific example, and a fourth specific example, where the first specific example introduces a method for determining whether there is a new activated secondary Cell by receiving a serving Cell Activation Indicator (CAI) field in the DCI in the PDCCH for scheduling the PDSCH; the second embodiment describes determining whether the activated downlink secondary cell is in a deactivated state by a timer; the third specific example describes a manner of determining a secondary Cell in a deactivated state by receiving a Cell Deactivation Indicator (CDI) field in DCI in a PDCCH for scheduling a PDSCH; the fourth specific example introduces an application scenario in which the second specific example and the third specific example are combined, and the application scenario is specifically as follows:

first embodiment

The embodiment determines whether there is a manner of adding a secondary cell in an activated state by receiving a Cell Activation Indicator (CAI) field in DCI in a PDCCH for scheduling a PDSCH, wherein,

the UE indicates Activation of the downlink secondary Cell by receiving bits in DCI in a PDCCH for scheduling the PDSCH, where the bits are referred to as a Cell Activation Indicator (CAI) field, and if the downlink secondary Cell indicated by the CAI field is included in the downlink secondary Cell where the DCI is received, there is no newly added activated secondary Cell (i.e., the secondary Cell currently in an inactive state does not need to be converted into an active state), and the number of the secondary cells in the active state remains unchanged. If the downlink secondary cell indicated by the CAI field is not included in the downlink secondary cell where the DCI is received, the CAI field indicates a newly added activated downlink secondary cell, the secondary cell transmitting the CAI field is still the activated downlink secondary cell, and the number of serving cells in the activated state is increased.

For example, the UE configures or reconfigures 4 downlink secondary cells, which are cell-1, cell-2, cell-3, and cell-4, respectively, by receiving a higher layer signaling specific to the UE, the CAI indication is 2 bits, and a mapping relationship between the CAI indication and the activated downlink secondary cell is shown in table 1.

TABLE 1

Second embodiment

This specific example describes determining whether the activated downlink secondary cell is in a deactivated state by using a timer, which is specifically as follows:

for a downlink secondary cell in an active state, whether the downlink secondary cell in the active state is in the active state or not can be determined through a timer, that is, a timer value of the timer is configured, when the UE receives DCI on the downlink secondary cell in the active state, the timer is set to 0, if the DCI is not received, the timer accumulates 1, and when the timer accumulation reaches the preconfigured timer value, the downlink secondary cell in the active state is changed into the downlink secondary cell in the inactive state, so that the downlink secondary cell in the inactive state which is not used is changed into the inactive state, and the power of the UE can be saved. For example, the configured timer value of the timer is 10, when the UE receives DCI on the activated downlink secondary cell 1 in the time slot n, the timer is set to 0, the UE does not receive DCI on the activated downlink secondary cell in the time slot n +1, the timer becomes 1, the UE does not receive DCI on the activated downlink secondary cell 1 in the time slot n +2 to the time slot n +10, the timer becomes 10, and the downlink secondary cell 1 in the activated state transitions to the inactivated state. Therefore, the downlink secondary cell in the unused active state can be changed into the inactive state, and the power is saved.

Third embodiment

This specific example introduces a manner of determining a secondary Cell in a deactivated state by receiving a Cell Deactivation Indicator (CDI) field in DCI in a PDCCH that schedules a PDSCH, which is specifically as follows:

the UE deactivates the secondary cell by receiving bits in the DCI in the PDCCH, which are referred to as a CDI field, and the CDI field indicates a downlink secondary cell to be changed to be inactive from the current active state. The downlink secondary cell indicated by the CDI field may be a secondary cell transmitting CDI, and the downlink secondary cell indicated by the CDI field may also be other downlink secondary cells in an activated state. For example, the UE configures or reconfigures 4 downlink secondary cells, which are cell-1, cell-2, cell-3, and cell-4, respectively, by receiving a higher layer signaling specific to the UE, where the CDI indicates 2 bits, and the CDI indicates a mapping relationship between an indication value for deactivating the downlink secondary cell and the downlink secondary cell, as shown in table 2.

TABLE 2

Fourth embodiment

The present embodiment introduces an application scenario in which the second embodiment and the third embodiment are combined, and the application scenario is specifically as follows:

if the UE receives the CDI field indication in the DCI in the PDCCH to deactivate a serving cell, the downlink secondary cell is converted from an activated state to an inactivated state, and in addition, if the UE does not receive the CDI field indication in the DCI in the PDCCH to deactivate the serving cell within a certain time, however, according to the timer mode in the second specific example, when the timer accumulation reaches the preset timer value, the downlink secondary cell still needs to be converted from the activated state to the inactivated serving cell state.

Example two

The present embodiment mainly introduces a method for determining an activated secondary Cell or a deactivated secondary Cell by receiving DCI in a PDCCH dedicated for indicating Activation or deactivation of a downlink secondary Cell, and/or determining a deactivated secondary Cell by using a timer, where the method includes two specific examples, where a first specific example introduces a method for determining a current activated state of a secondary Cell by using a Cell Activation/deactivation indicator (CADI) field; the second embodiment describes an application scenario in which the manner of determining the activation status of the secondary cell is combined with the manner of determining the activation status of the secondary cell by means of the timer, as shown in the following, wherein,

first embodiment

This specific example introduces a manner of determining the current Activation state of the secondary Cell through a serving Cell Activation/Deactivation indicator (CADI) field, which is specifically as follows:

the UE indicates activation/deactivation of the downlink serving cell by receiving a field in DCI in a PDCCH (physical downlink control channel) which is specially used for indicating activation/deactivation of the downlink serving cell, wherein the bits are called CADI (control area indication) fields, the bit number of the field is the same as the number of downlink secondary cells configured by the UE, or the bit number of the field is determined by high-layer signaling configuration or protocol presetting. A bit mapping (bitmap) method may be used for indicating, and each 1 bit in the CADI field indicates whether one downlink secondary cell is active or inactive. For example, a bit value of "1" indicates that the downlink secondary cell is in an active state, and a bit value of "0" indicates that the downlink secondary cell is in an inactive state.

For example, the UE configures or reconfigures 4 downlink secondary cells by receiving a UE-specific high-level signaling, where the downlink secondary cells are cell-1, cell-2, cell-3, and cell-4, the CADI is 4 bits, and a mapping relationship between the active states of the CADI and the downlink secondary cells is shown in fig. 2, where a first bit in the CADI field indicates a current state (active state or inactive state) of the cell-1, a second bit in the CADI field indicates a current state of the cell-2, a third bit in the CADI field indicates a current state of the cell-3, and a fourth bit in the CADI field indicates a current state of the cell-4.

Second embodiment

The specific example introduces an application scenario in which a mode of determining the activation state of the secondary cell is combined by a first specific example and a timer mode, and the specific example is as follows:

the first specific example can be used to determine the deactivated secondary cell by using the field CADI indication in the DCI, but the UE may miss the detection of the DCI, wait until the base station knows that the UE does not receive the CADI indication, and retransmit the CADI indication, which requires a relatively long time, and at this time, the UE cannot deactivate the secondary cell in time, thereby wasting the power of the UE. Therefore, on the basis of the first specific example, a method for determining the deactivation of the serving cell by adding a timer is provided, the method is to configure a timer value, if the UE receives the CADI field in the DCI in the PDCCH to indicate that one serving cell is deactivated, the downlink secondary cell becomes an inactive state, if the UE does not receive the CADI field in the DCI in the PDCCH to indicate that one serving cell is deactivated, when the UE receives the DCI in one activated downlink secondary cell, the timer is set to 0, if the UE does not receive the DCI in the activated downlink serving cell within a certain time, the timer accumulates to 1, and when the timer accumulation reaches the preconfigured timer value, the serving cell in the active state becomes an inactive state.

EXAMPLE III

This embodiment mainly introduces a way of determining the time of activation and/or the time of deactivation of a cell, as follows:

this embodiment describes determining the time of activating/deactivating each secondary cell when one CADI field is a field in a PDCCH specifically used for indicating activation/deactivation of a downlink serving cell, for example, when more than two downlink serving cells are simultaneously activated/deactivated by using the CADI field in embodiment two, determining the time of activating/deactivating each secondary cell by using the method described below. When one CAI and CDI field is a field in a PDCCH for scheduling a PDSCH, the downlink serving cell activation/deactivation time is a time for scheduling PDSCH transmission indicated in the PDCCH for the PDSCH, and is not specifically described here.

For example, the UE configures or reconfigures 4 downlink secondary cells, which are cell-1, cell-2, cell-3, and cell-4, respectively, by receiving a higher layer signaling specific to the UE, where the slot length of cell-1 is 1 ms, the slot length of cell-2 is 0.5 ms, the slot length of cell-3 is 0.25 ms, and the slot length of cell-4 is 0.5 ms.

When the UE indicates an activated secondary Cell in the downlink secondary Cell by receiving a bit CADI field in DCI in the PDCCH, the UE may define a time unit of a CATI field for indicating a time point when a new activated serving Cell starts at a DCI increase serving Cell Activation Timing Indicator (CATI) field in the PDCCH for indicating the downlink activated secondary Cell indicates a time point when the new activated serving Cell starts, where Subcarrier spaces (SCS) of a plurality of newly activated serving cells added at the same time may be different, and the time unit of the CATI field may be preset by a protocol, for example, the time unit may be 0.125 ms, or a serving Cell with a largest Subcarrier space (or a smallest Subcarrier space) in all serving cells configured by the UE (if one serving Cell is configured with a plurality of BWPs, a slot length of the BWP with the largest Subcarrier space or the smallest Subcarrier space is selected as a slot length of the serving Cell) The length of the slot or the length of the OFDM symbol of (1) is used as a reference time unit of the CATI field, and the subcarrier space of the serving cell is used as a reference subcarrier space. The method can start the activation of the secondary cell more timely.

For example, the UE configures or reconfigures 4 downlink secondary cells, which are cell-1, cell-2, cell-3, and cell-4, respectively, by receiving a specific high layer signaling of the UE, where a slot length of the cell-1 is 1 ms, a slot length of the cell-2 is 0.5 ms, a slot length of the cell-3 is 0.5 ms, and a slot length of the cell-4 is 0.25 ms, if the CADI indicates that the cell-1 and the cell-4 are newly added active secondary cells, if the slot length of the cell-1 is a reference time unit, the slot length is 1 ms, and if the slot length of the cell-4 is the reference time unit, the slot length is 0.25 ms. If the time delay of the newly added activated auxiliary cell is 0.5 millisecond, the time slot length of the cell-1 is used as a reference time unit, and the time delay of the newly added activated auxiliary cell is 1 millisecond; when the time slot length of cell-4 is used as the reference time unit, the delay time of the newly added activated secondary cell is 0.5 ms, as shown in fig. 3.

The time interval between the time when the secondary cell is newly activated and the time when the UE finishes receiving the OFDM symbol of the PDCCH of the bit CADI field in the DCI in the PDCCH is determined by high-level signaling configuration or protocol presetting. When the indicated subcarrier space of the newly activated serving cell (or BWP) is smaller than the reference subcarrier space, the activation time of the newly activated secondary cell is the time at which the activation time of the newly activated secondary cell indicated by the time unit (e.g., OFDM symbol, or timeslot) using the reference subcarrier space starts at the same time or the first time unit of the newly activated secondary cell after the start. For example, the reference subcarrier space is 30kHz, the subcarrier space of the newly added active secondary cell is 15kHz, and the OFDM symbol length of the reference subcarrier space is used as the time unit of the activation time of the newly added active secondary cell, as shown in fig. 4, the activation time of the newly added active secondary cell is the time at which the OFDM symbols that start at the same time using the activation time of the newly added secondary serving cell indicated by the OFDM symbols of the reference subcarrier space are located. Alternatively, as shown in fig. 5, the activation time of the newly added activated secondary cell is a time of an OFDM symbol after the start of the activation time of the newly added activated secondary cell indicated by the OFDM symbol in the reference subcarrier space.

For the secondary cell changed from the activated state to the deactivated state, the time changed from the activated state to the deactivated state may be the same as the time when the newly added activated serving cell starts to be activated, that is, the activated time of the newly added activated serving cell and the deactivation of the deactivated serving cell adopt the same timing relationship, and is indicated by CATI, as shown in fig. 6, cell-1 is changed from the activated serving cell to the deactivated serving cell, cell-2 is changed from the deactivated serving cell to the activated serving cell, and the UE receives CADI from the time slot n, where CATI is 2, then cell-1 is changed from the activated serving cell to the deactivated serving cell at the time slot n +2, and cell-2 is changed from the deactivated serving cell to the activated serving cell at the time slot n + 2.

Or the deactivation time of the deactivation service cell and the newly added activation service cell adopt different timing relationships, wherein the timing relationship of the newly added activation service cell is indicated by CATI, the timing relationship is configured by a high-level signaling when the deactivation service cell is deactivated, and the timing relationship is preset by a protocol. For example, the time delay for deactivating the serving cell is 0.5 ms, that is, the time difference between the instruction for deactivating the serving cell and the time for deactivating the serving cell is 0.5 ms, as shown in fig. 7, the slot lengths of cell-1 and cell-2 are 0.5 ms, cell-1 changes from the active serving cell to the inactive serving cell, cell-2 changes from the inactive serving cell to the active serving cell, and the UE receives the CADI from the slot n, where CATI is 2, cell-1 changes from the active serving cell to the inactive serving cell at the slot n +2, and cell-2 changes from the inactive serving cell to the active serving cell at the slot n + 1.

By the method, the influence on the receiving of the PDCCH due to the fact that the base station and the UE understand different activation moments after the serving cell is activated is avoided.

Or the UE starts the next OFDM symbol after receiving the ending OFDM symbol of the PDCCH indicating the CADI field, the method can end and deactivate the reception of data and control signaling on the serving cell as soon as possible, and can save more power.

The above description is that the base station determines the activation state of the secondary cell according to the condition of the traffic volume required to be transmitted, the base station can accurately know the condition of the downlink traffic volume required to be transmitted, and can determine the activation state of the secondary cell according to the condition of the downlink traffic volume required to be transmitted, so that the transmission of the downlink traffic volume can be ensured, and the activation state of the secondary cell can be adjusted in time, thereby saving power. The base station cannot accurately know the condition of uplink and downlink traffic volume to be transmitted, so that the base station cannot adjust the activation state of the secondary cell in time according to the condition of the downlink traffic volume to be transmitted, at this time, the UE may provide the base station with recommendation Information for adjusting the activation state of the secondary cell, the recommendation Information may be transmitted by a transmission method of Uplink Control Information (UCI), for example, the recommendation Information may be 1 bit, when the bit value of the recommendation Information is "0", the base station is recommended to deactivate uplink transmission of the secondary cell, and when the bit value of the recommendation Information is "1", the base station is recommended to activate uplink transmission of the secondary cell; or, when the UE proposes that the base station deactivates the uplink transmission proposal of the secondary cell, the UE sends a proposal information bit, and otherwise the UE does not send the proposal information. Through the transmission of the physical layer signaling suggestion information, the base station can determine the activation state of the auxiliary cell according to the condition of the uplink traffic needing to be transmitted, thereby not only ensuring the transmission of the uplink traffic, but also adjusting the activation state of the auxiliary cell in time, and saving electricity.

When the UE sends the recommendation information to recommend the base station to deactivate uplink transmission of the secondary cell, the UE stops detecting the PDCCH scheduled for uplink data in the secondary cell, which may save power.

Another method is that after the UE sends the recommendation information to recommend the base station to deactivate the uplink transmission of the secondary cell, the UE does not stop detecting the PDCCH for uplink data scheduling of the secondary cell until the base station indicates the UE to deactivate the serving cell, and the UE stops detecting the PDCCH for uplink data scheduling of the secondary cell.

In order to save power for the UE, the UE may dynamically determine different PDCCH monitoring configurations according to the amount of data to be transmitted, when the amount of data is large, the period of PDCCH monitoring is short, the number of monitoring times is large, the number of Aggregation (AL) candidates to be monitored is large, data can be transmitted in time, when the amount of data is small, the period of PDCCH monitoring is long, the number of monitoring times is small, the number of monitored AL candidates is small, and power can be saved.

The conversion operation of the active downlink Bandwidth Part (BWP) needs to be performed first, that is, the conversion operation is performed from the currently active downlink BWP to the target active downlink BWP. As to how to trigger the transition of the active downlink BWP, two ways may be included, the first is to trigger the transition of the active downlink BWP through a received DCI indication for scheduling a Physical Downlink Shared Channel (PDSCH), and the second is to trigger the transition of the active downlink BWP through a Timer (Timer), that is, the UE terminates (Expired) at the Timer, and the active downlink BWP of the UE transitions to the default downlink BWP. A Timer (Timer) to trigger the Timer value (BWP-inactivtytimer) for activating downlink BWP transition is configured by high layer signaling, if the period of PDCCH monitoring is also configured by high layer signaling, the base station may configure an appropriate Timer value for the UE, and in order to save power for the UE, when the period of PDCCH monitoring is changed by a dynamic indication (e.g., DCI indication), the Timer value for downlink BWP transition may not be applicable, for example, when the period P1 for PDCCH monitoring activating downlink BWP1 is greater than the Timer value T for downlink BWP transition, it may happen that the UE does not wait for a PDCCH period of a next period after the activation downlink BWP1 receives one PDCCH, and the UE transitions to the default downlink BWP according to the Timer value T for BWP transition, and the UE cannot continuously receive data at the downlink BWP1, as shown in fig. 8. To solve this problem, the timer value T of BWP transformation may be dynamically changed, a set T _ s of the timer values of BWP transformation may be configured through higher layer signaling, for example, the T _ s includes { T1, T2, T3, T4}, and then one value of the set T _ s is indicated as the timer value of BWP transformation through explicit dynamic signaling or implicit dynamic signaling. The method for indicating a value in the set T _ s as the BWP transformed timer value through dynamic signaling shown may be to include BWP transformed timer value indication information in the DCI, for example, the BWP transformed timer value indication information is 2 bits, and the indication method is shown in table 3.

TABLE 3

The implicit method of dynamically signaling a value in the indication set T _ s as the BWP transition timer value may be that there is a BWP transition timer value corresponding to different PDCCH monitoring periods or PDCCH detection configuration parameters, for example, there is a BWP transition timer value corresponding to a PDCCH monitoring period as shown in table 4,

TABLE 4

Or different active downlink BWPs are configured with independent BWP transformed timer values, for example, the BWP transformed timer value for active downlink BWP1 is T1, that is, when BWP1 is active downlink BWP, the BWP transformed timer value for BWP1 is T1, and when BWP2 is active downlink BWP, the BWP transformed timer value for active downlink BWP2 is T2.

With the above embodiments, compared with the prior art, the present application has at least the following beneficial effects:

firstly, the activation state of the downlink auxiliary cell is determined through the dynamic auxiliary cell activation state indication information, so that the power consumption of the UE is saved, and the power saving of the UE and the throughput level of received data are ensured;

secondly, when the secondary cells configured by the UE adopt different subcarrier spaces, a scheme for determining a plurality of activated downlink secondary cells is provided, and the different activated downlink secondary cells adopt different timing schemes, so that the secondary cells in different subcarrier spaces can be better ensured to be activated and/or deactivated in time;

thirdly, the activation state of the downlink auxiliary cell is determined by combining the dynamic auxiliary cell activation state indication information indication and the timing method, so that the UE can be timely deactivated when the activation information indication is lost, and the power consumption of the UE is saved.

Example four

An embodiment of the present application provides a user equipment UE, as shown in fig. 9, the user equipment UE80 may include: an obtaining module 81, a first determining module 82, wherein,

an obtaining module 81, configured to obtain the activation status indication information of the secondary cell.

A first determining module 82, configured to determine, based on the secondary cell activation status indication information acquired by the acquiring module 81, respective corresponding statuses of at least one secondary cell configured or reconfigured by the UE.

Wherein the states include: an active state and an inactive state.

Compared with the prior art in which the activation state or the deactivation state of one secondary cell is determined through media access layer signaling, the embodiment of the present application obtains the indication information of the activation state of the secondary cell, and then determines the state corresponding to at least one secondary cell configured or reconfigured by the UE based on the indication information of the activation state of the secondary cell, where the state includes: an active state and an inactive state. That is, the time delay of the state corresponding to any one of the secondary cells determined by the user equipment UE according to the secondary cell activation state indication information is shorter than the time delay of the state corresponding to the state determined by the medium access layer signaling for activating or deactivating the secondary cell, so that the time delay of the activation and/or deactivation of the secondary cell can be reduced, the time delay of receiving or sending data by the user equipment UE can be further reduced, and the power consumption of the UE can be reduced.

EXAMPLE five

As shown in fig. 10, another user equipment UE provided in the embodiment of the present application, a device 90 of the embodiment may include: an obtaining module 91, a first determining module 92, wherein,

an obtaining module 91, configured to obtain the secondary cell activation status indication information.

The acquiring module 91 in fig. 10 has the same or similar function as the acquiring module 81 in fig. 9.

A first determining module 92, configured to determine, based on the secondary cell activation status indication information acquired by the acquiring module 91, respective corresponding statuses of at least one secondary cell configured by the UE or reconfigured by the UE.

Wherein the states include: an active state and an inactive state.

Wherein the first determining module 92 in fig. 10 has the same or similar function as the first determining module 82 in fig. 9.

Specifically, the obtaining module 91 is specifically configured to obtain the secondary cell activation state indication information from the received DCI; and/or acquiring activation state indication information corresponding to each auxiliary cell in the current activation state through a pre-configured timer corresponding to each auxiliary cell in the current activation state.

Specifically, the obtaining module 91 is further configured to obtain, from DCI received in a physical downlink control channel PDCCH for scheduling a physical downlink shared channel PDSCH, secondary cell activation indication information CAI of a secondary cell corresponding to the scheduled PDSCH; and/or acquiring secondary Cell Deactivation Indication (CDI) information of a secondary cell corresponding to the scheduled PDSCH from DCI (downlink control information) in the PDCCH (physical downlink control channel) for scheduling the PDSCH; and/or acquiring secondary cell activation/deactivation indication (CADI) information from DCI received in PDCCH (physical downlink control channel) specially used for indicating activation/deactivation of downlink secondary cells.

Specifically, the obtaining module 91 is further configured to obtain a current value of a preconfigured timer corresponding to the secondary cell currently in the active state as the active state indication information corresponding to the secondary cell currently in the active state.

Specifically, the first determining module 92 is specifically configured to determine, based on a CAI in a PDCCH for scheduling a PDSCH, a state of a secondary cell corresponding to the scheduled PDSCH; and/or determining the state of a secondary cell corresponding to the scheduled PDSCH based on the CDI in the PDCCH for scheduling the PDSCH; and/or determining the state corresponding to each secondary cell configured or reconfigured by the UE based on CADI information in a PDCCH for scheduling the PDSCH; and/or determining the state corresponding to the secondary cell in the activated state based on the pre-configured current value of the timer corresponding to the secondary cell in the activated state and the pre-configured timing value.

Specifically, the first determining module 92 is further configured to determine that the secondary cell currently in the active state needs to be changed from the active state to the inactive state when a pre-configured current value of a timer corresponding to the secondary cell currently in the active state is not less than a pre-configured timing value; and/or

And when the current value of the preconfigured timer corresponding to the secondary cell in the activated state is smaller than the preconfigured timing value, determining that the secondary cell in the activated state is still in the activated state.

Further, as shown in fig. 10, the apparatus 90 further includes: a second determination module 93, wherein,

a second determining module 93, configured to determine, when DCI is not acquired within a preset time unit, a state corresponding to the secondary cell currently in the active state based on a preconfigured current timer value and a preconfigured timing value corresponding to the secondary cell currently in the active state.

For the embodiment of the present application, the first determining module 92 and the second determining module 93 may be the same determining module or different determining modules. In the embodiment of the present application, it is not limited, and fig. 10 only describes a case where the first determination module 92 and the second determination module 93 are different determination modules, but is not limited to the case shown in fig. 10.

Further, as shown in fig. 10, the apparatus 90 further includes: the detection module 94 is configured to, among other things,

and a detecting module 94, configured to detect the PDCCH in the determined activated secondary cell.

Further, as shown in fig. 10, the apparatus 90 further includes: a third determination module 95 that determines, among other things,

a third determining module 95, configured to determine an activation time corresponding to the secondary cell to be activated and/or a deactivation time corresponding to the secondary cell to be deactivated.

The third determining module 95 may be the same as or different from at least one of the first determining module 92 and the second determining module 93. The embodiments of the present application are not limited.

Fig. 10 merely describes a case where the first determination module 92, the second determination module 93, and the third determination module 95 are different determination modules, but is not limited to the case shown in fig. 10.

In particular, the third determination module 95 is specifically configured to determine the reference time unit.

The third determining module 95 is further specifically configured to determine a reference time according to the determined reference time unit.

The third determining module 95 is further specifically configured to determine, according to the determined reference time, an activation time corresponding to the secondary cell to be activated and/or a deactivation time corresponding to the secondary cell to be deactivated.

Specifically, the third determining module 95 is specifically configured to determine, based on the received cell activation timing relationship indication CATI, an activation reference time corresponding to the secondary cell to be activated; and/or determining the deactivation reference time of the secondary cell to be deactivated through the received high-layer signaling.

Specifically, the third determining module 95 is further specifically configured to determine, based on the number of reference time units carried by the CATI and used for indicating a difference between the time when the CADI is received and the reference time when the secondary cell is activated and/or deactivated, the activation reference time corresponding to the secondary cell to be activated.

Specifically, the third determining module 95 is further configured to determine the deactivation reference time of the secondary cell to be deactivated based on the number of reference time units, which are carried in the high layer signaling and are used for a difference between the time when the CADI is received and the reference time when the secondary cell is deactivated.

In one possible implementation, the duration of the reference time unit includes at least one of: presetting a time length value; the time slot length of the maximum bandwidth part BWP in the subcarrier space of the secondary cell to be activated or the secondary cell to be deactivated or the orthogonal frequency division multiplexing OFDM symbol length; the time slot length or OFDM symbol length of the BWP with the smallest subcarrier space in the secondary cell to be activated or the secondary cell to be deactivated; a time length value configured by higher layer signaling.

Specifically, the third determining module 95 is further configured to use a time at which the secondary cell to be activated and/or deactivated overlaps with the reference time as an activation time corresponding to the secondary cell to be activated and/or a deactivation time corresponding to the secondary cell to be deactivated; and/or taking the next moment of the moment when the secondary cell to be activated and/or deactivated is overlapped with the reference moment as the activation moment corresponding to the secondary cell to be activated and/or the deactivation moment corresponding to the secondary cell to be deactivated.

The embodiment of the present application provides another user equipment UE, and compared with the prior art in which an activation state or a deactivation state of an auxiliary cell is determined through media access layer signaling, in the embodiment of the present application, the activation state indication information of the auxiliary cell is obtained, and then, based on the activation state indication information of the auxiliary cell, a state corresponding to at least one auxiliary cell configured or reconfigured by the UE is determined, where the state includes: an active state and an inactive state. That is, the time delay of the state corresponding to any one of the secondary cells determined by the user equipment UE according to the secondary cell activation state indication information is shorter than the time delay of the state corresponding to the state determined by the medium access layer signaling for activating or deactivating the secondary cell, so that the time delay of the activation and/or deactivation of the secondary cell can be reduced, the time delay of receiving or sending data by the user equipment UE can be further reduced, and the power consumption of the UE can be reduced.

EXAMPLE six

An embodiment of the present invention provides a user equipment UE, and as shown in fig. 11, an electronic device 1000 shown in fig. 11 includes: processor 1001, memory 1003. Where the processor 1001 is coupled to the memory 1003, such as via a bus 1002. Optionally, the electronic device 1000 may also include a communication interface 1004, which includes an antenna. It should be noted that the communication interface 1004 is not limited to one in practical application, and the structure of the electronic device 1000 is not limited to the embodiment of the present invention.

The processor 1001 is applied to the embodiment of the present invention, and is configured to implement the functions of the obtaining module and the first determining module shown in fig. 9 or fig. 10, and the second determining module, the third determining module, and the detecting module shown in fig. 10. The communication interface 1004 includes a receiver and a transmitter, and the communication interface 1004 is applied to the embodiments of the present invention for signal interaction with other terminal devices or base stations.

The processor 1001 may be a CPU, general purpose processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or execute the various illustrative logical blocks, modules, and circuits described in connection with the embodiment disclosure. The processor 1001 may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs and microprocessors, and the like.

Bus 1002 may include a path that transfers information between the above components. The bus 1002 may be a PCI bus or an EISA bus, etc. The bus 1002 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 11, but this is not intended to represent only one bus or type of bus.

The memory 1003 may be, but is not limited to, a ROM or other type of static storage device that can store static information and instructions, a RAM or other type of dynamic storage device that can store information and instructions, an EEPROM, a CD-ROM or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

The memory 1003 is used for storing application program codes for implementing the embodiments of the present invention, and the execution is controlled by the processor 1001. The processor 1001 is configured to execute application program codes stored in the memory 1003 to implement the operations performed by the modules shown in fig. 9 or 10.

EXAMPLE seven

FIG. 12 schematically illustrates a block diagram of a computing system that may be used to implement user equipment of the present application, according to an embodiment of the present application.

As shown in fig. 12, computing system 1100 includes a processor 1110, a computer-readable storage medium 1120, an output interface 1130, and an input interface 1140. The computing system 1100 may perform the method described above with reference to fig. 1, to determine a state corresponding to at least one secondary cell configured or reconfigured by the user equipment UE as an activated state or an inactivated state, respectively, and perform a corresponding activation operation and/or deactivation operation.

In particular, processor 1110 may include, for example, a general purpose microprocessor, an instruction set processor and/or related chip set and/or a special purpose microprocessor (e.g., an Application Specific Integrated Circuit (ASIC)), and/or the like. The processor 1110 may also include onboard memory for caching purposes. Processor 1110 may be a single processing unit or a plurality of processing units for performing the different actions of the method flow described with reference to fig. 1.

Computer-readable storage medium 1120 may be, for example, any medium that can contain, store, communicate, propagate, or transport the instructions. For example, a readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, device, or propagation medium. Specific examples of the readable storage medium include: magnetic storage devices, such as magnetic tape or Hard Disk Drives (HDDs); optical storage devices, such as compact disks (CD-ROMs); a memory, such as a Random Access Memory (RAM) or a flash memory; and/or wired/wireless communication links.

The computer-readable storage medium 1120 may include a computer program that may include code/computer-executable instructions that, when executed by the processor 1110, cause the processor 1110 to perform a method flow such as that described above in connection with fig. 1 and any variations thereof.

The computer program may be configured with computer program code, for example comprising computer program modules. For example, in an example embodiment, code in the computer program may include one or more program modules, including for example module 1, module 2, … …. It should be noted that the division and number of modules are not fixed, and those skilled in the art may use suitable program modules or program module combinations according to actual situations, which when executed by the processor 1110, enable the processor 1110 to perform the method flow described above in connection with fig. 1 and any variations thereof, for example.

According to an embodiment of the application, processor 1110 may use output interface 1130 and input interface 1140 to perform the method flows described above in connection with fig. 1 and any variations thereof.

Compared with the prior art in which the activation state or the deactivation state of one secondary cell is determined through media access layer signaling, the embodiment of the present application obtains the indication information of the activation state of the secondary cell, and then determines the state corresponding to at least one secondary cell configured or reconfigured by the UE based on the indication information of the activation state of the secondary cell, where the state includes: and then, based on the determined state corresponding to the at least one secondary cell configured or reconfigured by the UE, executing corresponding activation operation and/or deactivation operation. That is, the time delay of the state corresponding to any one of the secondary cells determined by the user equipment UE according to the secondary cell activation state indication information is shorter than the time delay of the state corresponding to the state determined by the medium access layer signaling for activating or deactivating the secondary cell, so that the time delay of the activation and/or deactivation of the secondary cell can be reduced, the time delay of receiving or sending data by the user equipment UE can be further reduced, and the power consumption of the UE can be reduced.

It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A method for determining an activation status of a secondary cell, comprising:

acquiring the activation state indication information of the secondary cell;

2. The method of claim 1, wherein obtaining the secondary cell activation status indication information comprises at least one of:

acquiring the secondary cell activation state indication information from the received downlink control information DCI;

and acquiring activation state indication information corresponding to each auxiliary cell in the current activation state through a pre-configured timer corresponding to each auxiliary cell in the current activation state.

3. The method according to claim 2, wherein the obtaining the secondary cell activation status indication information from the received downlink control information DCI comprises at least one of:

acquiring secondary cell activation indication information CAI of a secondary cell corresponding to a scheduled PDSCH from DCI in a Physical Downlink Control Channel (PDCCH) for scheduling the PDSCH;

acquiring secondary Cell Deactivation Indication (CDI) information of a secondary cell corresponding to a scheduled PDSCH from DCI (downlink control information) in a PDCCH (physical downlink control channel) for scheduling the PDSCH;

acquiring secondary cell activation/deactivation indication (CADI) information from DCI received in PDCCH (physical downlink control channel) specially used for indicating activation/deactivation of downlink secondary cells.

4. The method of claim 2, wherein obtaining the activation status indication information corresponding to each secondary cell currently in the activation state by using a preconfigured timer corresponding to each secondary cell currently in the activation state comprises:

and acquiring a pre-configured current value of a timer corresponding to the secondary cell in the current activation state as the activation state indication information corresponding to the secondary cell in the current activation state.

5. The method of claim 2, wherein determining the status corresponding to at least one secondary cell configured or reconfigured by the UE based on the secondary cell activation status indication information comprises at least one of:

determining a state of a secondary cell corresponding to a scheduled PDSCH based on a CAI in a PDCCH for scheduling the PDSCH;

determining a state of a secondary cell corresponding to a scheduled PDSCH based on a CDI in a PDCCH for scheduling the PDSCH;

determining states respectively corresponding to the UE configured or reconfigured secondary cells based on CADI information in a PDCCH for scheduling PDSCH;

and determining the state corresponding to the secondary cell in the current activation state based on the pre-configured current value of the timer corresponding to the secondary cell in the current activation state and the pre-configured timing value.

6. The method of claim 5, wherein determining the state corresponding to the secondary cell currently in the active state based on the preconfigured current timer value and the preconfigured timing value corresponding to the secondary cell currently in the active state comprises:

when the current value of a preconfigured timer corresponding to the current activated secondary cell is not less than the preconfigured timing value, determining that the current activated secondary cell needs to be converted from an activated state to an inactivated state; and/or

7. The method according to any one of claims 2-6, further comprising:

and when the DCI is not acquired in a preset time unit, determining the state corresponding to the auxiliary cell in the current activation state based on the pre-configured current timer value and the pre-configured timing value corresponding to the auxiliary cell in the current activation state.

8. The method according to any of claims 1-7, wherein the determining, based on the secondary cell activation status indication information, a status corresponding to at least one secondary cell configured or reconfigured by the UE, further comprises:

and detecting the PDCCH in the determined secondary cell in the activated state.

9. The method according to any one of claims 1-8, further comprising:

and determining the activation time corresponding to the secondary cell to be activated and/or the deactivation time corresponding to the secondary cell to be deactivated.

10. The method according to claim 9, wherein determining the activation time corresponding to the secondary cell to be activated and/or the deactivation time corresponding to the secondary cell to be deactivated comprises:

determining a reference time unit;

determining a reference time according to the determined reference time unit;

and determining the activation time corresponding to the auxiliary cell to be activated and/or the deactivation time corresponding to the auxiliary cell to be deactivated according to the determined reference time.

11. The method of claim 10, wherein determining the reference time based on the determined reference time unit comprises at least one of:

determining an activation reference moment corresponding to a secondary cell to be activated based on the received cell activation timing relationship indication CATI;

and determining the deactivation reference time of the secondary cell to be deactivated through the received high-level signaling.

12. The method of claim 11, wherein determining the activation reference time corresponding to the secondary cell to be activated based on the received CATI comprises:

determining an activation reference time corresponding to the secondary cell to be activated based on the number of reference time units carried by the CATI and used for indicating the difference between the time when the CADI is received and the reference time when the secondary cell is activated and/or deactivated; and/or

Determining a deactivation reference time of a secondary cell to be deactivated through a received high-level signaling, comprising:

and determining the deactivation reference time of the secondary cell to be deactivated based on the number of reference time units carried in the high-level signaling and used for the difference between the time of receiving the CADI and the reference time of deactivating the secondary cell.

13. The method according to any of claims 10 to 12, wherein determining, according to the determined reference time, an activation time corresponding to the secondary cell to be activated and/or a deactivation time corresponding to the secondary cell to be deactivated comprises at least one of:

taking the time when the auxiliary cell to be activated and/or deactivated is overlapped with the reference time as the activation time corresponding to the auxiliary cell to be activated and/or the deactivation time corresponding to the auxiliary cell to be deactivated;

and taking the next moment of the moment when the auxiliary cell to be activated and/or deactivated is overlapped with the reference moment as the activation moment corresponding to the auxiliary cell to be activated and/or the deactivation moment corresponding to the auxiliary cell to be deactivated.

14. A User Equipment (UE), comprising:

15. A user equipment, UE, comprising:

an antenna;

a processor; and

a memory configured to store machine readable instructions which, when executed by the processor, cause the processor to perform the method of secondary cell activation state determination of any of claims 1-13.