CN114222357B - Terminal device, power saving method, non-transitory storage medium, and program product - Google Patents

Terminal device, power saving method, non-transitory storage medium, and program product Download PDF

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Publication number
CN114222357B
CN114222357B CN202111533323.3A CN202111533323A CN114222357B CN 114222357 B CN114222357 B CN 114222357B CN 202111533323 A CN202111533323 A CN 202111533323A CN 114222357 B CN114222357 B CN 114222357B
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terminal device
downlink
terminal
ssb
rsrp
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CN114222357A (en
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黄韬
陈晓冬
魏垚
李鹏翔
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present disclosure relates to a terminal device, a power saving method, a non-transitory storage medium, and a program product. A power saving method of a terminal device, comprising: receiving a Radio Resource Control (RRC) message, the RRC message including maximum Multiple Input Multiple Output (MIMO) layer number information; receiving Downlink Control Information (DCI), the DCI including antenna port information indicating the number of downlink; measuring a synchronization signal and a physical broadcast channel block reference signal received power (SSB-RSRP); comparing the maximum MIMO layer number with the downlink link number; further comparing the SSB-RSRP with a predetermined range in case the number of downlink is less than the maximum MIMO layer number; and causing the terminal device to reset the network configuration parameter in case the SSB-RSRP belongs to a predetermined range.

Description

Terminal device, power saving method, non-transitory storage medium, and program product
Technical Field
The present disclosure relates generally to wireless communication systems, and more particularly to power saving techniques for terminal devices.
Background
Because of the large bandwidth, multi-antenna operation characteristics of 5G communications, how to reduce the power consumption of 5G terminal devices is a current concern for those skilled in the art. The 3GPP defines various methods for reducing the power consumption of the terminal device, such as limiting the bandwidth size of a bandwidth portion (hereinafter, BWP), limiting the maximum number of multiple input multiple output (hereinafter, MIMO) layers in BWP, so that the terminal device can turn off a portion of the bandwidth and transmit/receive antennas for the purpose of energy saving.
At present, the aim of energy saving is often achieved by two technologies, one is that the terminal device sets network configuration parameters according to a radio resource control (hereinafter referred to as RRC) message sent by the base station through direct setting by the base station, and then the network configuration parameters are always effective; another is to feed back user equipment auxiliary control information (hereinafter referred to as UAI) to the base station to adjust network configuration parameters (e.g., BWP size or maximum MIMO layer number) when the terminal device detects that discontinuous reception (hereinafter referred to as DRX) parameters need to be modified (in this case, excessive power consumption is typically detected for a period of time) or overheating occurs through the power saving feedback technique of the terminal device.
Accordingly, there is a need for improved power saving feedback techniques for terminal devices.
Disclosure of Invention
The following presents a simplified summary of the disclosure in order to provide a basic understanding of some aspects of the disclosure. It should be understood that this summary is not an exhaustive overview of the disclosure. It is not intended to identify key or critical elements of the disclosure or to delineate the scope of the disclosure. Its purpose is to present some concepts related to the disclosure in a simplified form as a prelude to the more detailed description that is presented later.
According to an aspect of the present disclosure, there is provided a power saving method of a terminal device, including: receiving a Radio Resource Control (RRC) message, the RRC message including maximum Multiple Input Multiple Output (MIMO) layer number information; receiving Downlink Control Information (DCI), the DCI including antenna port information indicating the number of downlink; measuring a synchronization signal and a physical broadcast channel block reference signal received power (SSB-RSRP); comparing the maximum MIMO layer number with the downlink link number; further comparing the SSB-RSRP with a predetermined range in case the number of downlink is less than the maximum MIMO layer number; and causing the terminal device to reset the network configuration parameter in case the SSB-RSRP belongs to a predetermined range.
According to another aspect of the present disclosure, there is provided a terminal apparatus including: a memory having instructions stored thereon, and a processor configured to execute the instructions stored on the memory to perform the steps of: receiving a Radio Resource Control (RRC) message, the RRC message including maximum Multiple Input Multiple Output (MIMO) layer number information; receiving Downlink Control Information (DCI), the DCI including antenna port information indicating the number of downlink; measuring a synchronization signal and a physical broadcast channel block reference signal received power (SSB-RSRP); comparing the maximum MIMO layer number with the downlink link number; further comparing the SSB-RSRP with a predetermined range in case the number of downlink is less than the maximum MIMO layer number; and causing the terminal device to reset the network configuration parameter in case the SSB-RSRP belongs to a predetermined range.
According to yet another aspect of the present disclosure, there is provided one or more non-transitory storage media storing instructions which, when executed by one or more hardware processors, cause performance of a method according to the above-described aspects of the present disclosure.
According to yet another aspect of the present disclosure, there is provided a program product comprising instructions which, when executed by one or more hardware processors, cause performance of a method according to the above-described aspects of the present disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The disclosure may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which:
fig. 1 is a flowchart showing an example of a conventional power saving feedback process of a terminal apparatus;
fig. 2 is a timing chart showing a series of operations of a conventional power saving feedback process of a terminal apparatus;
Fig. 3 shows a flowchart of a power saving process of a terminal apparatus according to an embodiment of the present disclosure;
Fig. 4 shows a timing chart of a series of operations of the power saving process of the terminal apparatus according to the embodiment of the present disclosure;
fig. 5 illustrates an exemplary configuration of a terminal device in which embodiments according to the present disclosure may be implemented.
Detailed Description
The following detailed description is made with reference to the accompanying drawings and is provided to assist in a comprehensive understanding of various example embodiments of the disclosure. The following description includes various details to aid in understanding, but these are to be considered merely examples and are not intended to limit the disclosure, which is defined by the appended claims and their equivalents. The words and phrases used in the following description are only intended to provide a clear and consistent understanding of the present disclosure. In addition, descriptions of well-known structures, functions and configurations may be omitted for clarity and conciseness. Those of ordinary skill in the art will recognize that various changes and modifications of the examples described herein can be made without departing from the spirit and scope of the present disclosure.
At present, the aim of energy saving of a terminal device is mainly achieved through two technologies, one is that the terminal device is directly set through a base station, and a network configuration parameter is set according to an RRC message sent by the base station and then is effective all the time; another is to transmit, for example, UAI to the base station to adjust, for example, the BWP size or the maximum MIMO layer number, when the terminal device detects that a problem such as excessive power consumption or overheating occurs, by the energy-saving feedback technique of the terminal device.
Techniques set directly by the base station may result in reduced downlink efficiency of the terminal because of constant parameters. The maximum MIMO layer number is issued by the base station through RRC message and is semi-static configuration.
In some embodiments, a terminal device with a terminal capability of 4 downlinks is set to operate with 2 downlinks in consideration of power saving, and even if the terminal device is located in a cell at a place closer to a base station (hereinafter, referred to as a near point), the terminal device can operate with 2 downlinks, which results in a downlink rate of only half of a peak value, which reduces performance of the terminal device when performing downlink high-capacity service, and affects user experience.
In some embodiments, a terminal device with a terminal capability of 4 downlinks is set to operate with 4 downlinks regardless of power saving, and even if the terminal device is located at a place far from a base station (hereinafter referred to as a mid-to-far point) in a cell and can operate with only 1 or 2 downlinks, the terminal device will turn on 4 reception antennas, resulting in a large power consumption. Therefore, the technology of direct setting by the base station has a certain limit in the case where the terminal apparatus is in a mobile state.
The power saving feedback technique of the terminal device sets network configuration parameters of the terminal device by: when a terminal device requests to access a base station for service, the base station requires the terminal device to feed back terminal capability, wherein the terminal capability comprises bandwidth supported by the terminal device, maximum MIMO layer number and the like; the base station will schedule (i.e. send RRC message) according to the terminal capability reported by the terminal device; the terminal device sets network parameters according to the RRC message to carry out service; when the terminal device performs a service, the terminal device transmits, for example, a UAI to the base station only if it is detected that a problem such as excessive power consumption or overheating occurs for a certain period of time, and the base station performs RRC configuration again according to the received UAI, so that the terminal device adjusts, for example, the BWP size or the maximum MIMO layer number.
Fig. 1 shows a flowchart of an example of a conventional power saving feedback process of a terminal device. When the terminal device accesses the base station for service, the network configuration parameters will be further set through the conventional energy-saving feedback process of the terminal device. The conventional power saving process of the terminal device may be performed by, for example, the terminal device (hereinafter, simply referred to as a terminal).
At S101, the terminal receives an RRC message transmitted from the base station. The RRC message is set and transmitted by the base station according to terminal capabilities (such as BWP supported by the terminal and maximum MIMO layer number) reported by the terminal. Then, the process proceeds to S102.
At S102, the terminal sets network configuration parameters and performs services according to the RRC message sent by the base station. The network configuration parameters set here correspond to the terminal capabilities. Without being instructed to modify the network configuration parameters, the terminal cannot adjust e.g. BWP or maximum MIMO layer number. Then, the process proceeds to S103.
At S103, after the terminal performs the service for a period of time, it is detected whether the DRX parameter needs to be modified (at this time, it is generally detected that the power consumption is excessive for a period of time), or a problem such as overheating occurs. If excessive power consumption or overheat is detected, the process proceeds to S104. Otherwise, the process ends.
At S104, the terminal sends, for example, a UAI to the base station. The base station may modify the RRC message according to the received UAI.
Then, the process will return to S101. The terminal will reset the network configuration parameters according to the modified RRC message to perform the service while achieving the purpose of energy saving.
Fig. 2 shows a timing chart of a series of operations of the power saving feedback process of the conventional terminal apparatus. Fig. 2 will be further described with reference to elements in fig. 1 to further explain the operation between a terminal and a base station in the conventional power saving feedback process of the terminal apparatus. Operation may proceed from S201 to S206.
At S201, the terminal receives the RRC message transmitted from the base station.
In some embodiments, the terminal sends an access request to the base station when the terminal needs to conduct a service. Upon receiving the access request, the base station requires the terminal to report terminal capabilities, which may include, but are not limited to, BWP and maximum MIMO layers (e.g., 100M bandwidth and 2 uplinks and 4 downlinks). The terminal then reports the terminal capabilities in response to the base station's requirements. And the base station configures and transmits the RRC message according to the terminal capability reported by the terminal.
At S202, the terminal sets network configuration parameters and performs a service according to the received RRC message. Then, the operation proceeds to S203.
At S203, after the service is performed for a while, in the case where the occurrence of excessive power consumption or overheating is detected, the process proceeds to S204.
At S204, the terminal sends the UAI to the base station for feedback. Then, the operation proceeds to S205.
At S205, the base station performs RRC reconfiguration again according to the received UAI and transmits the generated modified RRC message to the terminal. Then, the operation proceeds to S206.
At S206, the terminal will reset the network configuration parameters and conduct traffic according to the received modified RRC message.
Note that in the case where the occurrence of excessive power consumption or overheating is not detected at S203, the subsequent operation will be omitted, and the terminal continues the relevant service with the network configuration parameters set at S202.
However, as can be seen from fig. 1 and 2, the conventional power saving process of the terminal device has a certain delay, and the network configuration parameters of the terminal are reset under the condition that the terminal has generated more power consumption, which cannot achieve the effect of saving power as much as possible.
The combination of the base station direct setting technology and the energy-saving feedback technology of the terminal device cannot achieve the ideal effect of ensuring the performance of the terminal device and simultaneously saving energy as much as possible. In addition, it is not applicable to a scenario in which the terminal device is in a moving state.
Aiming at the limitations of the direct setting of a base station and the conventional energy-saving feedback technology of a terminal device, the present disclosure proposes a new energy-saving technology of the terminal device, which is applied to a scene that the terminal device is in a moving state, and can simultaneously consider the performance and energy saving of the terminal device.
The power saving method of the terminal device proposed by the present disclosure utilizes a new power saving processing method by comparing the maximum MIMO layer number in the RRC message with the downlink number in the DCI, and comparing SSB-RSRP with a predetermined range, and then setting network configuration parameters according to the result of the comparison. Details of the power saving method of the terminal device proposed in the present disclosure will be further described with reference to fig. 3 and 4.
Fig. 3 shows a flowchart of a power saving process of a terminal apparatus according to an embodiment of the present disclosure. In the case where the terminal device is in a mobile state and performs a service, the terminal device accesses the base station to perform the service, and the network configuration parameters will be set by the improved power saving process of the terminal device. The improved power saving process of the terminal device may be performed by, for example, the terminal device (hereinafter, simply referred to as a terminal).
At S301, the terminal receives an RRC message transmitted from the base station. The RRC message is set and transmitted by the base station according to terminal capabilities (such as BWP supported by the terminal and maximum MIMO layer number) reported by the terminal. Then, the process proceeds to S302.
At S302, the terminal receives DCI transmitted from the base station, the DCI including antenna port information indicating the number of downlink. Then, the process proceeds to S303.
In some embodiments, when the terminal moves from a near point to the cell edge, the base station cannot schedule 4 downlinks when scheduling the terminal due to poor channel quality. Wherein, the information of the downlink number is contained in an antenna port (antenna ports) field in the DCI message.
Note that the base station takes a long time to configure and send the RRC message, and typically the base station sends the RRC message to the terminal when the terminal requests access to the base station for service. However, compared to RRC messages, the base station takes less time to configure and transmit DCI, and the base station continues to transmit DCI for the period of time that the terminal continues to conduct traffic.
At S303, the terminal obtains SSB-RSRP by known method measurements, e.g. defined by the 3GPP standard. Then, the process proceeds to S304.
At S304, the terminal compares the number of downlink channels in the DCI with the maximum MIMO layer number in the RRC message by, for example, but not limited to, a processor (such as a power saving decision maker of the terminal).
In some embodiments, the power saving decision maker of the terminal compares the number of downlink channels indicated by the antenna port field in the DCI with the maximum MIMO layer number in the RRC message.
In the case where the number of downlink in the DCI is smaller than the maximum MIMO layer number in the RRC message, the process proceeds to S305. Otherwise, the process proceeds to S307.
At S305, the terminal determines, by means of, for example and without limitation, a processor (such as a power saving decision maker of the terminal), whether the SSB-RSRP obtained at S303 is within a predetermined range, which may be determined by a person skilled in the art according to the actual situation. The predetermined range may be greater than or equal to a threshold value of 1 and less than or equal to a threshold value of 2 (i.e., [ threshold value of 1, threshold value of 2 ]), wherein the threshold value may be freely set, for example, [ -110, -95] dBm. In the case where the obtained SSB-RSRP is within the predetermined range, the process proceeds to S306. Otherwise, the process proceeds to S307.
At S306, the terminal sets network configuration parameters (e.g., adjusts the number of reception antennas) according to the received DCI and performs a service. Then, the process ends.
At S307, the terminal sets a network configuration parameter and performs a service according to the RRC message received at S301. Then, the process ends.
In some embodiments, in the case that the number of downlink in DCI is not less than the maximum MIMO layer number in the RRC message, the maximum MIMO layer number in the RRC message continues to take effect (i.e., the terminal sets network configuration parameters and performs traffic according to the received RRC message). For example, the maximum MIMO layer number in the RRC message is 4, and the downlink number indicated by the antenna port in the DCI received by the terminal at the cell near point is also 4, so the terminal will set the network configuration parameter according to the maximum MIMO layer number in the RRC message, without adjusting the number of receiving antennas (e.g., without turning off the antennas).
In some embodiments, in case the number of downlink in the DCI is smaller than the maximum MIMO layer number in the RRC message, the terminal will set the network configuration parameters further according to a determination if the obtained SSB-RSRP is within a predetermined range (e.g., [ -110, -95] dbm). For example, if the maximum MIMO layer number in the RRC message is 4 and the downlink number indicated by the dci is 2, the terminal will behave differently according to the comparison between the SSB-RSRP obtained by the measurement and the predetermined range.
In some embodiments, if SSB-RSRP is greater than-95 dBm, where the channel quality is good but not all links of the terminal are scheduled, then this indicates that there may be severe interference in the communication, the maximum MIMO layer number configured in the RRC message is still valid, the terminal does not turn off additional receive antennas, and diversity reception, such as compensating for fading channel loss, is used to improve reliability.
In some embodiments, if the SSB-RSRP is within [ -110, -95] dBm, the channel quality at that time is still acceptable, and the terminal does not need to use diversity reception. The terminal will turn off the remaining 2 receive antennas as indicated by the antenna port field in the DCI.
In some embodiments, if the SSB-RSRP value is less than-110 dBm, and the channel quality is poor at this time, the terminal may reduce the error rate of the transmission by adopting a diversity reception manner, and the maximum MIMO layer number configured in the RRC message is still valid.
Fig. 4 shows a timing chart of a series of operations of the power saving process of the terminal apparatus according to the embodiment of the present disclosure. Fig. 4 will be further described in conjunction with elements in fig. 3 to further illustrate the operation between a terminal and a base station in the power saving process of the terminal apparatus of the present disclosure. The terminal may be in a mobile state. Operation may proceed from S401 to S405.
At S401, the terminal receives an RRC message transmitted from the base station. Then, the operation proceeds to S402.
In some embodiments, the terminal sends an access request to the base station when the terminal needs to conduct a service. Upon receiving the access request, the base station requires the terminal to report terminal capabilities, which may include, but are not limited to, BWP and maximum MIMO layers (e.g., 100M bandwidth and 2 uplinks and 4 downlinks). The terminal then reports the terminal capabilities in response to the base station's requirements. And the base station configures and transmits the RRC message according to the terminal capability reported by the terminal.
At S402, the terminal receives DCI transmitted from the base station, the DCI including antenna port information indicating the number of downlink. Then, the operation proceeds to S403.
In some embodiments, when the terminal moves from a near point to the cell edge, the base station cannot schedule 4 downlinks when scheduling the terminal due to poor channel quality. The information of the number of downlink is contained in an antenna port (antenna ports) field in the DCI message.
Note that the base station takes a long time to configure and send the RRC message, and typically the base station sends the RRC message to the terminal when the terminal requests access to the base station for service. However, compared to RRC messages, the base station takes less time to configure and transmit DCI, and the base station continues to transmit DCI for the period of time that the terminal is doing traffic.
At S403, the terminal obtains SSB-RSRP by known method measurements, e.g. defined by the 3GPP standard. Then, the operation proceeds to S404.
At S404, the terminal compares the number of downlink channels in the DCI with the maximum MIMO layer number in the RRC message, and further determines whether SSB-RSRP is within a predetermined range (e.g., [ -110, -95] dbm) if the number of downlink channels is less than the maximum MIMO layer number. The operation then proceeds to S405.
At S405, the terminal determines to set network configuration parameters based on the RRC message or based on the DCI and perform a service according to the result at S404.
In some embodiments, in case that the downlink number of the DCI is not less than the maximum MIMO layer number in the RRC message, the terminal sets a network configuration parameter according to the RRC message and performs a service.
In some embodiments, in case that the downlink number of DCI is less than the maximum MIMO layer number in the RRC message and SSB-RSRP is not within a predetermined range, the terminal sets network configuration parameters and performs traffic according to the RRC message.
In some embodiments, in case that the downlink number of DCI is less than the maximum MIMO layer number in the RRC message and SSB-RSRP is within a predetermined range, the terminal sets a network configuration parameter (e.g., turns off part of the reception antennas to save energy) according to the DCI and performs traffic.
As can be seen from fig. 3 and 4, in the power saving process of the terminal device of the present disclosure, the terminal device may make a relevant decision according to a processor (such as a power saving decision maker of a terminal) disposed thereon to determine how to set network parameters, and thus, the power saving method of the terminal device proposed by the present disclosure can be applied to a scenario in which the terminal device is in a mobile state, while taking into account both performance and power saving of the terminal device.
The energy-saving method of the terminal device provided by the disclosure is flexible, and reduces the time delay, so that the terminal device can judge and adjust the network configuration parameters in time. In addition, the application scene is wider, and the terminal device can be better represented in a moving state scene. In addition, the related algorithm has definite input condition, is easy to realize, and does not need to increase extra terminal overhead
Fig. 5 illustrates an exemplary configuration of a terminal device in which embodiments according to the present disclosure may be implemented.
Computing device 500 is an example of a hardware device that can employ the above aspects of the present disclosure. Computing device 500 may be any machine configured to perform processing and/or calculations. Computing device 500 may be, but is not limited to, a workstation, a server, a desktop computer, a laptop computer, a tablet computer, a Personal Data Assistant (PDA), a smart phone, an in-vehicle computer, or a combination thereof.
As shown in fig. 5, computing device 500 may include one or more elements that may be connected to or in communication with bus 501 via one or more interfaces.
Bus 501 may include, but is not limited to, an industry standard architecture (Industry Standard Architecture, ISA) bus, a micro channel architecture (Micro Channel Architecture, MCA) bus, an Enhanced ISA (EISA) bus, a Video Electronics Standards Association (VESA) local bus, and a Peripheral Component Interconnect (PCI) bus.
Computing device 500 may include, for example, one or more processors 502, one or more input devices 503, and one or more output devices 504. The one or more processors 502 may be any kind of processor and may include, but is not limited to, one or more general purpose processors or special purpose processors (such as special purpose processing chips).
The processor 502 may be configured to implement, for example, the steps of: receiving a Radio Resource Control (RRC) message, the RRC message including maximum Multiple Input Multiple Output (MIMO) layer number information; receiving Downlink Control Information (DCI), the DCI including antenna port information indicating the number of downlink; measuring a synchronization signal and a physical broadcast channel block reference signal received power (SSB-RSRP); comparing the maximum MIMO layer number with the downlink link number; further comparing the SSB-RSRP with a predetermined range in case the number of downlink is less than the maximum MIMO layer number; and causing the terminal device to reset the network configuration parameter in case the SSB-RSRP belongs to a predetermined range.
The input device 503 may be any type of input device capable of inputting information to a computing device and may include, but is not limited to, a mouse, a keyboard, a touch screen, a microphone, and/or a remote controller.
Output device 504 may be any type of device capable of presenting information and may include, but is not limited to, a display, speakers, video/audio output terminals, vibrators, and/or printers.
The computing device 500 may also include or be connected to a non-transitory storage device 507, which may be any storage device that is non-transitory and may enable data storage, and may include, but is not limited to, disk drives, optical storage devices, solid state memory, floppy disks, flexible disks, hard disks, magnetic tape or any other magnetic medium, compact disk or any other optical medium, cache memory and/or any other memory chip or module, and/or any other medium from which a computer may read data, instructions, and/or code.
Computing device 500 may also include Random Access Memory (RAM) 505 and Read Only Memory (ROM) 506. The ROM 506 may store programs, utilities or processes to be executed in a nonvolatile manner. The RAM 505 may provide volatile data storage and store instructions related to the operation of the computing device 500.
Computing device 500 may also include a network/bus interface 508 coupled to a data link 509. The network/bus interface 508 can be any kind of device or system capable of enabling communication with external apparatuses and/or networks and can include, but is not limited to, modems, network cards, infrared communication devices, wireless communication devices, and/or chipsets (such as bluetooth TM devices, 802.11 devices, wiFi devices, wiMax devices, cellular communication facilities, etc.).
The present disclosure may be implemented as any combination of apparatuses, systems, integrated circuits, and computer programs on a non-transitory computer readable medium. One or more processors may be implemented as an Integrated Circuit (IC), application Specific Integrated Circuit (ASIC), or large scale integrated circuit (LSI), system LSI, super LSI, or ultra LSI assembly that performs some or all of the functions described in this disclosure.
Aiming at the limitation of the conventional technology, a new energy-saving technology of the terminal device is provided, which is applied to the scene that the terminal device is in a moving state, and simultaneously, the performance and energy saving of the terminal device are both considered.
The energy-saving technology of the terminal device provided by the disclosure is flexible, and reduces the time delay, so that the terminal device can judge and adjust the network configuration parameters in time. In addition, the application scene is wider, and the terminal device can be better represented in a moving state scene. In addition, the related algorithm input condition is clear and easy to realize, and extra terminal overhead is not required to be added.
The present disclosure includes the use of software, applications, computer programs, or algorithms. The software, application, computer program or algorithm may be stored on a non-transitory computer readable medium to cause a computer, such as one or more processors, to perform the steps described above and depicted in the drawings. For example, one or more memories may store software or algorithms in executable instructions and one or more processors may associate a set of instructions to execute the software or algorithms to provide various functions in accordance with the embodiments described in this disclosure.
The software and computer programs (which may also be referred to as programs, software applications, components, or code) include machine instructions for a programmable processor, and may be implemented in a high-level procedural, object-oriented, functional, logical, or assembly or machine language. The term "computer-readable medium" refers to any computer program product, apparatus or device, such as magnetic disks, optical disks, solid state memory devices, memory, and Programmable Logic Devices (PLDs), for providing machine instructions or data to a programmable data processor, including computer-readable media that receives machine instructions as a computer-readable signal.
By way of example, computer-readable media can comprise Dynamic Random Access Memory (DRAM), random Access Memory (RAM), read Only Memory (ROM), electrically erasable read only memory (EEPROM), compact disk read only memory (CD-ROM) or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired computer-readable program code in the form of instructions or data structures and that can be accessed by a general purpose or special purpose computer or general purpose or special purpose processor. Disk or disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, digital Versatile Disc (DVD), floppy disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.
The subject matter of the present disclosure is provided as examples of apparatuses, systems, methods, and programs for performing the features described in the present disclosure. Other features or variations in addition to those described above are contemplated. It is contemplated that the implementation of the components and functions of the present disclosure may be accomplished with any emerging technology that may replace any of the above-described implementation technologies.
In addition, the foregoing description provides examples without limiting the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various embodiments may omit, replace, or add various procedures or components as appropriate. For example, features described with respect to certain embodiments may be combined in other embodiments.
In addition, in the description of the present disclosure, the terms "first," "second," "third," etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or order.
Similarly, although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In some cases, multitasking and parallel processing may be advantageous.

Claims (10)

1. A power saving method of a terminal device, comprising:
Receiving a Radio Resource Control (RRC) message, wherein the RRC message comprises maximum Multiple Input Multiple Output (MIMO) layer number information;
receiving Downlink Control Information (DCI), wherein the DCI comprises antenna port information indicating the number of downlink links;
measuring the received power SSB-RSRP of the synchronous signal and the reference signal of the physical broadcast channel block;
Comparing the maximum MIMO layer number with the downlink number;
Further comparing the SSB-RSRP with a predetermined range, the predetermined range being greater than or equal to a first threshold and less than or equal to a second threshold, if the number of downlink layers is less than the maximum number of MIMO layers; and
And in the case that the SSB-RSRP belongs to the predetermined range, causing the terminal device to reset network configuration parameters including the MIMO layer number.
2. The energy saving method according to claim 1, wherein
The predetermined range is-110 dBm or more and-95 dBm or less.
3. The energy saving method according to claim 1 or 2, wherein
And under the condition that the number of the downlink links is larger than or equal to the maximum MIMO layer number, the terminal device does not need to reset the network configuration parameters.
4. The energy saving method according to claim 1 or 2, wherein
In the case where the number of downlink is smaller than the maximum MIMO layer number and the SSB-RSRP is not within the predetermined range, the terminal apparatus does not need to reset the network configuration parameter.
5. A terminal apparatus comprising:
A memory having instructions stored thereon; and
A processor configured to execute instructions stored on the memory to perform the steps of:
Receiving a Radio Resource Control (RRC) message, wherein the RRC message comprises maximum Multiple Input Multiple Output (MIMO) layer number information;
receiving Downlink Control Information (DCI), wherein the DCI comprises downlink number information;
measuring the received power SSB-RSRP of the synchronous signal and the reference signal of the physical broadcast channel block;
Comparing the maximum MIMO layer number with the downlink number;
Further comparing the SSB-RSRP with a predetermined range, the predetermined range being greater than or equal to a first threshold and less than or equal to a second threshold, if the number of downlink layers is less than the maximum number of MIMO layers; and
And in the case that the SSB-RSRP belongs to the predetermined range, causing the terminal device to reset network configuration parameters including the MIMO layer number.
6. The terminal device according to claim 5, wherein
The predetermined range is-110 dBm or more and-95 dBm or less.
7. The terminal device according to claim 5 or 6, wherein
And under the condition that the number of the downlink links is larger than or equal to the maximum MIMO layer number, the terminal device does not need to reset the network configuration parameters.
8. The terminal device according to claim 5 or 6, wherein
In the case where the number of downlink is smaller than the maximum MIMO layer number and the SSB-RSRP is not within the predetermined range, the terminal apparatus does not need to reset the network configuration parameter.
9. A non-transitory storage medium storing instructions which, when executed by one or more processors, cause performance of the method recited in any one of claims 1-4.
10. A program product comprising instructions which, when executed by one or more processors, cause performance of the method of any of claims 1-4.
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