CN114071563B - Multipath transmission control method and device based on cache space and mobile terminal - Google Patents
Multipath transmission control method and device based on cache space and mobile terminal Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0278—Traffic management, e.g. flow control or congestion control using buffer status reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
- H04W28/14—Flow control between communication endpoints using intermediate storage
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- 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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Abstract
The disclosure provides a multipath transmission control method and device based on a buffer space and a mobile terminal. The multi-path transmission control device detects whether the cellular access interface and the wireless access interface meet multi-path transmission conditions based on MPTCP; if the cellular access interface and the wireless access interface meet the multipath transmission condition, starting a multipath transmission mode based on the cellular access interface and the wireless access interface; determining a multipath rate ratio from a ratio of a first downlink transmission rate of the cellular access interface to a second downlink transmission rate of the wireless access interface; detecting the intensity value of a received pilot signal of the cellular network terminal under the condition that the multipath rate ratio is smaller than a first threshold; and under the condition that the intensity value of the received pilot signal of the cellular network terminal is smaller than the second threshold, performing first updating setting on the preset buffer space so as to use the preset buffer space as a downlink data buffer space of the wireless access interface. The present disclosure reduces base station energy consumption by adjusting downlink data buffer space for a cellular network.
Description
Technical Field
The disclosure relates to the field of communication, and in particular, to a multipath transmission control method and device based on a buffer space, and a mobile terminal.
Background
Many mobile terminals are currently equipped with multiple air network interfaces, such as a cellular network (3G/4G/5G) interface, a WLAN (Wireless Local Area Network ) interface, etc. In order to enable parallel multipath transmission of data using multiple interfaces, there has been much research in the related art, in which MPTCP (Multi path Transmission Control Protocol ) is a parallel data transmission protocol of a transmission layer. MPTCP is an extension to standard TCP (Transmission Control Protocol ), supporting simultaneous transmission of multiple paths, thereby significantly improving the throughput of the mobile terminal.
Disclosure of Invention
The inventors have found through research that in order to achieve multipath transmission, more energy is required to maintain the connection of multiple air network interfaces simultaneously. For example, in a process of simultaneously performing multipath transmission through a cellular network and a wireless local area network, a cellular network base station and a wireless local area network AP (Access Point) are required to operate simultaneously to keep a plurality of wireless links transmitting and receiving data in parallel. From the downlink perspective, the mobile terminal is generally closer to the AP than the base station because the base station has a larger coverage distance and the AP has a smaller coverage distance, i.e., the path loss generated by the base station signal arriving at the mobile terminal is generally greater than the path loss generated by the AP signal arriving at the mobile terminal. Therefore, in order to transmit the same data amount, the base station needs to consume more energy to ensure the correctness of the data transmission.
Accordingly, the present disclosure provides a multipath transmission control scheme, in which the downlink data buffer space for a cellular network is adjusted during multipath transmission, so as to correspondingly adjust the downlink transmission data amount of a cellular network base station, thereby reducing the energy consumption of the base station.
According to a first aspect of an embodiment of the present disclosure, there is provided a multipath transmission control method based on a buffer space, including: detecting whether a cellular access interface and a wireless access interface meet multipath transmission conditions based on a multipath data transmission protocol (MPTCP); if the cellular access interface and the wireless access interface meet the multipath transmission condition, starting a multipath transmission mode based on the cellular access interface and the wireless access interface, and dividing a preset buffer space into a first downlink data buffer space for the cellular access interface and a second downlink data buffer space for the wireless access interface; determining a multipath rate ratio from a ratio of a first downlink transmission rate of the cellular access interface to a second downlink transmission rate of the wireless access interface; detecting that the cellular network terminal receives a pilot signal strength value under the condition that the multipath rate ratio is smaller than a first threshold; and under the condition that the intensity value of the received pilot signal of the cellular network terminal is smaller than a second threshold, performing first updating setting on the preset buffer space so as to cancel the first downlink data buffer space, and using the preset buffer space as the downlink data buffer space of the wireless access interface.
In some embodiments, after the first update setting is made to the preset buffer space, the step of determining a multipath rate ratio according to a ratio of a first downlink transmission rate of the cellular access interface and a second downlink transmission rate of the wireless access interface is repeatedly performed.
In some embodiments, if the multipath rate ratio is not less than a first threshold, or if the received pilot signal strength value of the cellular network terminal is not less than a second threshold, detecting whether the first downlink data buffer space is divided in the preset buffer space; and if the first downlink data cache space is not divided in the preset cache space, performing second updating setting on the preset cache space so as to divide the first downlink data cache space and the second downlink data cache space in the preset cache space.
In some embodiments, after the second update setting is performed on the preset buffer space, the step of determining a multipath rate ratio according to a ratio of the first downlink transmission rate of the cellular access interface and the second downlink transmission rate of the wireless access interface is repeatedly performed.
In some embodiments, the step of determining a multipath rate ratio from a ratio of a first downlink transmission rate of the cellular access interface and a second downlink transmission rate of the wireless access interface is repeatedly performed in a case where the first downlink data buffer space has been divided in the preset buffer space.
According to a second aspect of an embodiment of the present disclosure, there is provided a multipath transmission control device based on a buffer space, including: a detection module configured to detect whether the cellular access interface and the wireless access interface satisfy a multipath transmission condition based on a multipath data transmission protocol MPTCP; the starting module is configured to start a multi-path transmission mode based on the cellular access interface and the wireless access interface if the cellular access interface and the wireless access interface meet the multi-path transmission condition, and divide a preset buffer space into a first downlink data buffer space for the cellular access interface and a second downlink data buffer space for the wireless access interface; a first evaluation module configured to determine a multipath rate ratio from a ratio of a first downlink transmission rate of the cellular access interface and a second downlink transmission rate of the wireless access interface; a second evaluation module configured to detect that the cellular network terminal receives a pilot signal strength value if the multipath rate ratio is less than a first threshold; and the transmission control module is configured to perform first update setting on the preset buffer space under the condition that the strength value of the received pilot signal of the cellular network terminal is smaller than a second threshold so as to cancel the first downlink data buffer space, and the preset buffer space is used as the downlink data buffer space of the wireless access interface.
In some embodiments, the first evaluation module is further configured to repeatedly perform the operation of determining a multipath rate ratio according to a ratio of the first downlink transmission rate of the cellular access interface and the second downlink transmission rate of the wireless access interface after the transmission control module makes the first update setting on the preset buffer space.
In some embodiments, the transmission control module is further configured to detect, if the multipath rate ratio is not less than a first threshold or if the received pilot signal strength value of the cellular network terminal is not less than a second threshold, whether the first downlink data buffer space is divided in the preset buffer space, and if the first downlink data buffer space is not divided in the preset buffer space, perform a second update setting on the preset buffer space, so as to divide the first downlink data buffer space and the second downlink data buffer space in the preset buffer space.
In some embodiments, the first evaluation module is further configured to repeatedly perform the operation of determining a multipath rate ratio according to a ratio of the first downlink transmission rate of the cellular access interface and the second downlink transmission rate of the wireless access interface after the transmission control module makes the second update setting on the preset buffer space.
In some embodiments, the first evaluation module is further configured to repeatedly perform the operation of determining a multipath rate ratio from a ratio of a first downlink transmission rate of the cellular access interface and a second downlink transmission rate of the wireless access interface, if the transmission control module detects that the first downlink data buffer space has been divided in the preset buffer space.
According to a third aspect of an embodiment of the present disclosure, there is provided a multipath transmission control device based on a buffer space, including: a memory configured to store instructions; a processor coupled to the memory, the processor configured to perform a method according to any of the embodiments described above based on instructions stored in the memory.
According to a fourth aspect of embodiments of the present disclosure, there is provided a mobile terminal, comprising: a buffer space; a cellular access interface configured to access a cellular network; a wireless access interface configured to access a wireless local area network; the multipath transmission control device based on a buffer space according to any one of the above embodiments.
According to a fifth aspect of embodiments of the present disclosure, there is provided a computer readable storage medium, wherein the computer readable storage medium stores computer instructions which, when executed by a processor, implement a method as in any of the embodiments described above.
Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.
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 flow diagram of a method of multipath transmission control in accordance with one embodiment of the present disclosure;
fig. 2 is a flow chart of a method of multipath transmission control in accordance with another embodiment of the present disclosure;
fig. 3 is a schematic structural view of a multi-path transmission control apparatus according to an embodiment of the present disclosure;
fig. 4 is a schematic structural view of a multi-path transmission control apparatus according to another embodiment of the present disclosure;
fig. 5 is a schematic structural view of a mobile terminal according to an embodiment of the present disclosure.
It should be understood that the dimensions of the various elements shown in the figures are not drawn to actual scale. Further, the same or similar reference numerals denote the same or similar members.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative, and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, and the numerical values set forth in these examples should be construed as merely illustrative, and not limiting unless specifically stated otherwise.
The use of the terms "comprising" or "including" and the like in this disclosure means that elements preceding the term encompass the elements recited after the term, and does not exclude the possibility of also encompassing other elements.
All terms (including technical or scientific terms) used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
Fig. 1 is a flow chart illustrating a method of multipath transmission control according to one embodiment of the present disclosure. In some embodiments, the following multipath transmission control method steps are performed by a multipath transmission control device.
In step 101, it is detected whether the cellular access interface and the radio access interface meet multipath transmission conditions based on MPTCP.
Here, the cellular access interface is an interface for accessing a cellular network, and the wireless access interface is an interface for accessing a wireless lan.
In some embodiments, if the mobile terminal accesses the corresponding network through the cellular access interface and the wireless access interface, respectively, it is determined that the cellular access interface and the wireless access interface satisfy the MPTCP-based multipath transmission condition.
In step 102, if the cellular access interface and the wireless access interface satisfy the multipath transmission condition, a multipath transmission mode based on the cellular access interface and the wireless access interface is started.
Here, it should be noted that, in the case of starting the multipath transmission module, the preset buffer space is divided into a first downlink data buffer space for the cellular access interface and a second downlink data buffer space for the wireless access interface. The proportional relation between the first downlink data buffer space and the second downlink data buffer space can be adjusted according to the requirement.
In step 103, a multipath rate ratio is determined from the ratio of the first downlink transmission rate of the cellular access interface and the second downlink transmission rate of the wireless access interface.
In step 104, the received pilot signal strength value of the cellular network terminal is detected in case the multipath rate ratio is smaller than a first threshold.
In some embodiments, the received pilot signal strength value is determined by the RSRP (Reference Signal Receiving Power, reference signal received power) received by the terminal.
In step 105, if the received pilot signal strength value of the cellular network terminal is smaller than the second threshold, the first update setting is performed on the preset buffer space, so as to cancel the first downlink data buffer space, and the preset buffer space is used as the downlink data buffer space of the radio access interface.
It should be noted that, in the case where the strength value of the received pilot signal of the cellular network terminal is smaller than the second threshold, the distance between the mobile terminal and the base station is longer. By canceling the first downlink data buffer space, the downlink data of the base station cannot be normally received by the mobile terminal, and in this case, the base station can stop sending the downlink data to the mobile terminal, so that the energy consumption of the base station is effectively reduced. In addition, in this case, by using all the preset buffer space as the downlink data buffer space of the wireless access interface, the downlink transmission efficiency of the wireless local area network can be effectively improved.
In the multipath transmission control method provided by the embodiment of the present disclosure, the downlink data buffer space for the cellular network is adjusted to correspondingly adjust the downlink transmission data amount of the cellular network base station, so as to reduce the energy consumption of the base station.
Fig. 2 is a flow chart illustrating a method of multipath transmission control according to another embodiment of the present disclosure. In some embodiments, the following multipath transmission control method steps are performed by a multipath transmission control device.
In step 201, it is detected whether the cellular access interface and the radio access interface satisfy the multipath transmission condition based on MPTCP.
Here, the cellular access interface is an interface for accessing a cellular network, and the wireless access interface is an interface for accessing a wireless lan.
In some embodiments, if the mobile terminal accesses the corresponding network through the cellular access interface and the wireless access interface, respectively, it is determined that the cellular access interface and the wireless access interface satisfy the MPTCP-based multipath transmission condition.
In step 202, if the cellular access interface and the wireless access interface satisfy the multipath transmission condition, a multipath transmission mode based on the cellular access interface and the wireless access interface is started.
Here, it should be noted that, in the case of starting the multipath transmission module, the preset buffer space is divided into a first downlink data buffer space for the cellular access interface and a second downlink data buffer space for the wireless access interface. The proportional relation between the first downlink data buffer space and the second downlink data buffer space can be adjusted according to the requirement.
In step 203, a multipath rate ratio is determined from the ratio of the first downlink transmission rate of the cellular access interface and the second downlink transmission rate of the wireless access interface.
In step 204, it is determined whether the multipath rate ratio is less than a first threshold.
If the multipath rate ratio is less than the first threshold, step 205 is performed; if the multipath rate ratio is less than the first threshold, step 207 is performed.
In step 205, it is determined whether the received pilot signal strength value of the cellular network terminal is less than a second threshold.
In some embodiments, the pilot signal strength value received by the cellular network terminal is based on the RSRP received by the terminal.
In the case that the received pilot signal strength value of the cellular network terminal is smaller than the second threshold, step 206 is performed; in case the received pilot signal strength value of the cellular network terminal is not less than the second threshold, step 207 is performed.
In step 206, a first update setting is performed on the preset buffer space so as to cancel the first downlink data buffer space, and the preset buffer space is used as the downlink data buffer space of the radio access interface. And then returns to step 203.
In step 207, it is detected whether the first downlink data buffer space is divided in the preset buffer space.
If the preset buffer space is currently divided into a first downlink data buffer space, returning to step 203; if the preset buffer space is not currently divided into the first downlink data buffer space, step 208 is performed.
In step 208, a second update setting is performed on the preset buffer space, so as to divide the first downlink data buffer space and the second downlink data buffer space in the preset buffer space. And then returns to step 203.
Here, in the case that the mobile terminal is far from the base station, the first downlink data buffer space for the cellular access interface is canceled. And under the condition that the mobile terminal is close to the base station, the multipath rate ratio is not smaller than a first threshold, or the strength value of the received pilot signal of the cellular network terminal is not smaller than a second threshold, and at the moment, the first downlink data buffer space for the cellular access interface is divided in the preset buffer space again so as to recover the multipath transmission of the mobile terminal.
Fig. 3 is a schematic structural view of a multi-path transmission control apparatus according to an embodiment of the present disclosure. As shown in fig. 3, the multipath transmission control device includes a detection module 31, a start module 32, a first evaluation module 33, a second evaluation module 34, and a transmission control module 35.
The detection module 31 is configured to detect whether the cellular access interface and the radio access interface meet a multipath transmission condition based on the multipath data transmission protocol MPTCP.
Here, the cellular access interface is an interface for accessing a cellular network, and the wireless access interface is an interface for accessing a wireless lan.
In some embodiments, if the mobile terminal accesses the corresponding network through the cellular access interface and the wireless access interface, respectively, it is determined that the cellular access interface and the wireless access interface satisfy the MPTCP-based multipath transmission condition.
The starting module 32 is configured to start a multi-path transmission mode based on the cellular access interface and the wireless access interface if the cellular access interface and the wireless access interface meet the multi-path transmission condition, and divide the preset buffer space into a first downlink data buffer space for the cellular access interface and a second downlink data buffer space for the wireless access interface. The proportional relation between the first downlink data buffer space and the second downlink data buffer space can be adjusted according to the requirement.
The first evaluation module 33 is configured to determine a multipath rate ratio from a ratio of a first downlink transmission rate of the cellular access interface and a second downlink transmission rate of the wireless access interface.
The second evaluation module 34 is configured to detect that the cellular network terminal receives a pilot signal strength value if the multipath rate ratio is less than a first threshold.
In some embodiments, the pilot signal strength value received by the cellular network terminal is based on the RSRP received by the terminal.
The transmission control module 35 is configured to perform a first update setting on the preset buffer space in order to cancel the first downlink data buffer space and use the preset buffer space as the downlink data buffer space of the radio access interface, in the case that the received pilot signal strength value of the cellular network terminal is smaller than the second threshold.
It should be noted that, in the case where the strength value of the received pilot signal of the cellular network terminal is smaller than the second threshold, the distance between the mobile terminal and the base station is longer. By canceling the first downlink data buffer space, the downlink data of the base station cannot be normally received by the mobile terminal, and in this case, the base station can stop sending the downlink data to the mobile terminal, so that the energy consumption of the base station is effectively reduced. In addition, in this case, by using all the preset buffer space as the downlink data buffer space of the wireless access interface, the downlink transmission efficiency of the wireless local area network can be effectively improved.
In some embodiments, the first evaluation module 33 is further configured to repeatedly perform the operation of determining the multipath rate ratio according to the ratio of the first downlink transmission rate of the cellular access interface and the second downlink transmission rate of the wireless access interface after the transmission control module 35 makes the first update setting of the preset buffer space.
In some embodiments, the transmission control module 35 is further configured to detect whether the first downlink data buffer space is divided in the preset buffer space if the multipath rate ratio is not less than the first threshold, or if the received pilot signal strength value of the cellular network terminal is not less than the second threshold, and if the first downlink data buffer space is not divided in the preset buffer space, perform a second update setting on the preset buffer space, so as to divide the first downlink data buffer space and the second downlink data buffer space in the preset buffer space.
In some embodiments, the first evaluation module 33 is further configured to repeatedly perform the operation of determining the multipath rate ratio according to the ratio of the first downlink transmission rate of the cellular access interface and the second downlink transmission rate of the wireless access interface after the transmission control module 35 makes the second update setting of the preset buffer space.
In some embodiments, the first evaluation module 33 is further configured to repeatedly perform the operation of determining the multipath rate ratio according to the ratio of the first downlink transmission rate of the cellular access interface and the second downlink transmission rate of the radio access interface, in case the transmission control module 35 detects that the first downlink data buffer space has been divided in the preset buffer space.
Fig. 4 is a schematic structural view of a multi-path transmission control apparatus according to another embodiment of the present disclosure. As shown in fig. 4, the multipath transmission control device includes a memory 41 and a processor 42.
The memory 41 is used to store instructions. The processor 42 is coupled to the memory 41. The processor 42 is configured to perform methods as referred to by any of the embodiments of fig. 1 or 2 based on the instructions stored by the memory.
As shown in fig. 4, the multipath transmission control apparatus further includes a communication interface 43 for information interaction with other devices. Meanwhile, the multipath transmission control device further comprises a bus 44, and the processor 42, the communication interface 43 and the memory 41 complete communication with each other through the bus 44.
The Memory 41 may include a high-speed RAM (Random Access Memory ) and may further include a Non-Volatile Memory (NVM). Such as at least one disk storage. The memory 41 may also be a memory array. The memory 41 may also be partitioned and the blocks may be combined into virtual volumes according to certain rules.
Further, the processor 42 may be a central processing unit, or may be an ASIC (Application Specific Integrated Circuit ), or one or more integrated circuits configured to implement embodiments of the present disclosure.
The present disclosure also provides a computer-readable storage medium. The computer readable storage medium stores computer instructions that, when executed by a processor, implement a method as referred to in any of the embodiments of fig. 1 or 2.
Fig. 5 is a schematic structural view of a mobile terminal according to an embodiment of the present disclosure. As shown in fig. 5, the mobile terminal 50 includes a buffer space 51, a cellular access interface 52, a wireless access interface 53, and a multipath transmission control device 54. The multipath transmission control device 54 is a multipath transmission control device as shown in either of the embodiments of fig. 3 or fig. 4.
The cellular access interface 52 is configured to access a cellular network and the wireless access interface 53 is configured to access a wireless local area network. The multipath transmission control device 54 starts a multipath transmission mode based on the cellular access interface and the radio access interface in the case where the cellular access interface 52 and the radio access interface 53 satisfy the multipath transmission condition, wherein the buffer space 51 is divided into a first downlink data buffer space for the cellular access interface 52 and a second downlink data buffer space for the radio access interface 53. The multipath transmission control means 54 determines a multipath rate ratio from the ratio of the first downlink transmission rate of the cellular access interface 52 and the second downlink transmission rate of the wireless access interface 53. If the multipath rate ratio is smaller than the first threshold and the received pilot signal strength value of the cellular network terminal is smaller than the second threshold, the multipath transmission control device 54 performs a first update setting on the preset buffer space so as to cancel the first downlink data buffer space, and uses the preset buffer space as the downlink data buffer space of the wireless access interface. By canceling the first downlink data buffer space, the downlink data of the base station cannot be normally received by the mobile terminal, and in this case, the base station can stop sending the downlink data to the mobile terminal, so that the energy consumption of the base station is effectively reduced. In addition, in this case, by using all the preset buffer space as the downlink data buffer space of the wireless access interface, the downlink transmission efficiency of the wireless local area network can be effectively improved.
In some embodiments, the functional modules described above may be implemented as general-purpose processors, programmable logic controllers (Programmable Logic Controller, abbreviated as PLCs), digital signal processors (Digital Signal Processor, abbreviated as DSPs), application specific integrated circuits (Application Specific Integrated Circuit, abbreviated as ASICs), field programmable gate arrays (Field-Programmable Gate Array, abbreviated as FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof for performing the functions described herein.
Thus, embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that the foregoing embodiments may be modified and equivalents substituted for elements thereof without departing from the scope and spirit of the disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (13)
1. A multipath transmission control method based on a buffer space comprises the following steps:
detecting whether a cellular access interface and a wireless access interface meet multipath transmission conditions based on a multipath data transmission protocol (MPTCP);
if the cellular access interface and the wireless access interface meet the multipath transmission condition, starting a multipath transmission mode based on the cellular access interface and the wireless access interface, and dividing a preset buffer space into a first downlink data buffer space for the cellular access interface and a second downlink data buffer space for the wireless access interface;
determining a multipath rate ratio from a ratio of a first downlink transmission rate of the cellular access interface to a second downlink transmission rate of the wireless access interface;
detecting that the cellular network terminal receives a pilot signal strength value under the condition that the multipath rate ratio is smaller than a first threshold;
and under the condition that the intensity value of the received pilot signal of the cellular network terminal is smaller than a second threshold, performing first updating setting on the preset buffer space so as to cancel the first downlink data buffer space, and using the preset buffer space as the downlink data buffer space of the wireless access interface.
2. The method of claim 1, further comprising:
and after the first updating setting is carried out on the preset buffer space, repeating the step of determining the multipath rate ratio according to the ratio of the first downlink transmission rate of the cellular access interface and the second downlink transmission rate of the wireless access interface.
3. The method of any of claims 1-2, further comprising:
detecting whether the first downlink data buffer space is divided in the preset buffer space or not under the condition that the multipath rate ratio is not smaller than a first threshold or the condition that the strength value of the received pilot signal of the cellular network terminal is not smaller than a second threshold;
and if the first downlink data cache space is not divided in the preset cache space, performing second updating setting on the preset cache space so as to divide the first downlink data cache space and the second downlink data cache space in the preset cache space.
4. A method according to claim 3, further comprising:
and after the second updating setting is carried out on the preset buffer space, repeating the step of determining the multipath rate ratio according to the ratio of the first downlink transmission rate of the cellular access interface and the second downlink transmission rate of the wireless access interface.
5. A method according to claim 3, further comprising:
and repeatedly executing the step of determining a multi-path rate ratio according to the ratio of the first downlink transmission rate of the cellular access interface and the second downlink transmission rate of the wireless access interface under the condition that the first downlink data buffer space is divided in the preset buffer space.
6. A multipath transmission control device based on a buffer space, comprising:
a detection module configured to detect whether the cellular access interface and the wireless access interface satisfy a multipath transmission condition based on a multipath data transmission protocol MPTCP;
the starting module is configured to start a multi-path transmission mode based on the cellular access interface and the wireless access interface if the cellular access interface and the wireless access interface meet the multi-path transmission condition, and divide a preset buffer space into a first downlink data buffer space for the cellular access interface and a second downlink data buffer space for the wireless access interface;
a first evaluation module configured to determine a multipath rate ratio from a ratio of a first downlink transmission rate of the cellular access interface and a second downlink transmission rate of the wireless access interface;
a second evaluation module configured to detect that the cellular network terminal receives a pilot signal strength value if the multipath rate ratio is less than a first threshold;
and the transmission control module is configured to perform first update setting on the preset buffer space under the condition that the strength value of the received pilot signal of the cellular network terminal is smaller than a second threshold so as to cancel the first downlink data buffer space, and the preset buffer space is used as the downlink data buffer space of the wireless access interface.
7. The apparatus of claim 6, wherein,
the first evaluation module is further configured to repeatedly perform an operation of determining a multipath rate ratio according to a ratio of a first downlink transmission rate of the cellular access interface and a second downlink transmission rate of the wireless access interface after the transmission control module performs a first update setting on the preset buffer space.
8. The device according to any one of claims 6-7, wherein,
the transmission control module is further configured to detect whether the first downlink data buffer space is divided in the preset buffer space if the multipath rate ratio is not less than a first threshold or if the received pilot signal strength value of the cellular network terminal is not less than a second threshold, and if the first downlink data buffer space is not divided in the preset buffer space, perform a second update setting on the preset buffer space so as to divide the first downlink data buffer space and the second downlink data buffer space in the preset buffer space.
9. The apparatus of claim 8, wherein,
the first evaluation module is further configured to repeatedly perform an operation of determining a multipath rate ratio according to a ratio of a first downlink transmission rate of the cellular access interface and a second downlink transmission rate of the wireless access interface after the transmission control module performs the second update setting on the preset buffer space.
10. The apparatus of claim 8, wherein,
the first evaluation module is further configured to repeatedly perform an operation of determining a multipath rate ratio according to a ratio of a first downlink transmission rate of the cellular access interface and a second downlink transmission rate of the wireless access interface, in case the transmission control module detects that the first downlink data buffer space has been divided in the preset buffer space.
11. A multipath transmission control device based on a buffer space, comprising:
a memory configured to store instructions;
a processor coupled to the memory, the processor configured to perform the method of any of claims 1-5 based on instructions stored by the memory.
12. A mobile terminal, comprising:
a buffer space;
a cellular access interface configured to access a cellular network;
a wireless access interface configured to access a wireless local area network;
a buffer space based multipath transmission control device as claimed in any of claims 6 to 11.
13. A computer readable storage medium storing computer instructions which, when executed by a processor, implement the method of any one of claims 1-5.
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