WO2022068457A1 - Procédé de transmission d'informations et dispositif de communication - Google Patents

Procédé de transmission d'informations et dispositif de communication Download PDF

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Publication number
WO2022068457A1
WO2022068457A1 PCT/CN2021/113498 CN2021113498W WO2022068457A1 WO 2022068457 A1 WO2022068457 A1 WO 2022068457A1 CN 2021113498 W CN2021113498 W CN 2021113498W WO 2022068457 A1 WO2022068457 A1 WO 2022068457A1
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WIPO (PCT)
Prior art keywords
sta
frame
status report
transmit power
buffer status
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PCT/CN2021/113498
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English (en)
Chinese (zh)
Inventor
柳剑飞
王伟杰
孙艳宾
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华为技术有限公司
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Publication of WO2022068457A1 publication Critical patent/WO2022068457A1/fr

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present application relates to the field of communication, and more particularly, to an information transmission method and a communication device.
  • the access point In a wireless local area network (WLAN), the access point (AP) needs to know the buffer state report (BSR) of the STA (station, STA) when performing uplink scheduling. Specifically, the AP sends a buffer status report poll (BSRP) frame to the STA to inquire about the BSR of the STA. After the STA receives the BSRP frame, the STA controls the frame control of the media access control (MAC) frame. The field or BSR field feeds back the BSR. After receiving the BSR fed back by the STA, the AP allocates a resource for transmitting uplink data to the STA, and then the STA can send uplink data on the resource.
  • BSR buffer state report
  • MAC media access control
  • the time overhead brought by sending the BSRP frame and replying to the BSR is relatively large, about 300-400us, which will affect the timely sending of uplink data.
  • the present application provides an information transmission method and a communication device.
  • a block acknowledgement (BA) frame to feed back a BSR
  • the process of an AP using a BSRP frame to query the BSR of a STA can be omitted, thereby improving scheduling efficiency and facilitating uplink. Timely delivery of data.
  • BA block acknowledgement
  • an information transmission method including: a STA generates a block acknowledgment frame, where the block acknowledgment frame includes a buffer status report of the STA, and the buffer status report is used by an AP to allocate and transmit uplink data for the STA resource; the STA sends the block acknowledgment frame to the AP.
  • the STA can feed back the buffer status report by confirming the frame frame, which can save the process of the AP querying the STA's buffer information by using the BSRP frame, thereby saving the time overhead caused by the process.
  • the scheduling efficiency is improved, which is conducive to the timely transmission of uplink data.
  • the BACK Type field in the BACK control field in the BACK frame indicates that the BACK frame includes the buffer status report.
  • the buffer status report field in the BACK frame includes the buffer status report;
  • the reserved field includes the cache status report.
  • the method before the STA generates a block acknowledgment frame, the method further includes: the STA receives downlink data from the AP.
  • the block determination frame further includes indication information, where the indication information is used to indicate whether the STA correctly receives downlink data from the AP.
  • the method before the STA generates a block acknowledgement frame, the method further includes: the STA receives a block acknowledgement request (BAR) from the AP ) frame, the block ack request frame instructs the STA to feed back the buffer status report.
  • BAR block acknowledgement request
  • the AP may send the block ack request frame after sending the downlink data, or the AP may also send the block ack request frame when there is no downlink data.
  • the block acknowledgment request frame can be used to request the STA to feed back the buffer status report through the BA frame, so that the STA can feed back the buffer status report without waiting for the AP to send the RSRP frame, so that the AP can obtain the buffer status report of the STA in time. Schedule the STA in time.
  • the BACK request type field in the BACK request control field in the BACK request frame instructs the STA to feed back the buffer status report; or, all The reserved field in the block ack request control field in the block ack request frame instructs the STA to feed back the buffer status report; or, the block ack request type field and the reservation field jointly instruct the STA to feed back the The cache status report described above.
  • the block acknowledgment frame further includes a transmit power to be used by the STA to transmit the uplink data.
  • the STA's uplink transmit power is implemented by an AP measurement algorithm.
  • the AP determines the STA's target transmit power and then indicates it to the STA, and the STA adjusts the power by itself according to the target transmit power.
  • the STA capability is unknown, the STA may not be able to adjust the target transmit power, which may cause uplink transmission failure.
  • the AP can adjust the transmit power of the STA to an appropriate receive power to receive the uplink data, thereby improving the success rate of uplink transmission.
  • the block acknowledgment frame further includes an adjustment margin of the transmit power, and the transmit power and the adjustment margin are used by the AP to determine the The target transmit power of the STA.
  • the AP can configure the target transmit power of the STA for this uplink transmission.
  • the STA may use the target transmit power for uplink transmission, which is beneficial to improve the success rate of uplink transmission.
  • the BACK Type field in the BACK control field in the BACK frame indicates that the BACK frame includes the transmit power.
  • block ack type field may indicate that the block ack frame includes both the transmit power and the buffer status report.
  • the transmission power field in the BACK frame includes the transmission power; or, the reserved field in the BACK control field in the BACK frame Including the transmit power.
  • the method before the STA generates a block acknowledgment frame, the method further includes: the STA receives downlink data from the AP.
  • the method before the STA generates a block acknowledgment frame, the method further includes: the STA receives a block acknowledgment request frame from the AP, the block acknowledgment The request frame instructs the STA to feed back the transmit power.
  • the BACK request type field in the BACK request control field in the BACK request frame instructs the STA to feed back the transmit power; or, the The reserved field in the block ack request control field in the block ack request frame instructs the STA to feed back the transmit power information; or, the block ack request type field and the reservation field jointly instruct the STA to feed back the transmit power.
  • a second aspect provides an information transmission method, comprising: an AP receiving a block acknowledgment frame from a STA, where the block acknowledgment frame includes a buffer status report of the STA; and the AP determines the buffer status report according to the buffer status report.
  • the STA transmits resources for uplink data; the AP sends resource scheduling information to the STA, and the resource scheduling information indicates the resources.
  • the STA can feed back the buffer status report by confirming the frame frame, which can save the process of the AP querying the STA's buffer information by using the BSRP frame, thereby saving the time overhead caused by the process.
  • the scheduling efficiency is improved, which is conducive to the timely transmission of uplink data.
  • the BACK Type field in the BACK control field in the BACK frame indicates that the BACK frame includes the buffer status report.
  • the buffer status report field in the BACK frame includes the buffer status report;
  • the reserved field includes the cache status report.
  • the method before the AP receives the block acknowledgment frame from the STA, the method further includes: the AP sends downlink data to the STA.
  • the method before the AP receives the block acknowledgment frame from the STA, the method further includes: the AP sends a block acknowledgment request frame to the STA, the The Block Ack Request frame instructs the STA to feed back the buffer status report.
  • the BACK request type field in the BACK request control field in the BACK request frame instructs the STA to feed back the buffer status report; or, all the reserved field in the block ack request control field in the block ack request frame instructs the STA to feed back the buffer status report; or,
  • the block ack request type field and the reservation field jointly instruct the STA to feed back the buffer status report.
  • the block acknowledgment frame further includes a transmit power to be used by the STA to transmit the uplink data.
  • the block acknowledgment frame further includes an adjustment margin of the transmit power, and the transmit power and the adjustment margin are used by the AP to determine the The target transmit power of the STA.
  • the BACK Type field in the BACK control field in the BACK frame indicates that the BACK frame includes the transmit power.
  • the transmission power field in the BACK frame includes the transmission power; or, the reserved field in the BACK control field in the BACK frame Including the transmit power.
  • the method before the AP receives the block acknowledgment frame from the STA, the method further includes: the AP sends downlink data to the STA.
  • the method before the AP receives the block acknowledgment frame from the STA, the method further includes: the AP sends a block acknowledgment request frame to the STA, the The Block Ack Request frame instructs the STA to feed back the transmit power.
  • the BACK request type field in the BACK request control field in the BACK request frame instructs the STA to feed back the transmit power; or, the The reserved field in the block ack request control field in the block ack request frame instructs the STA to feed back the transmit power information; or, the block ack request type field and the reservation field jointly instruct the STA to feed back the transmit power.
  • an information transmission method including: a station STA generates a block acknowledgment frame, where the block acknowledgment frame includes information about a transmission power to be used by the STA to send uplink data; the STA sends an access point AP The block acknowledgement frame.
  • the STA's uplink transmit power depends on the AP's measurement algorithm.
  • the AP determines the STA's target transmit power and then indicates it to the STA.
  • the STA adjusts the power by itself according to the target transmit power in the trigger frame.
  • the STA capability is unknown, the STA may not be able to adjust the target transmit power, which may cause uplink transmission failure.
  • the AP by carrying the transmit power to be used by the STA to send uplink data in the BA frame, the AP can adjust the transmit power of the STA to an appropriate receive power to receive the uplink data, thereby improving the uplink transmission efficiency. Success rate.
  • the block acknowledgment frame further includes an adjustment margin of the transmit power, and the transmit power and the adjustment margin are used by the AP to determine the target transmit power of the STA.
  • the AP can configure the target transmit power of the STA for this uplink transmission based on the transmit power reported by the STA and the adjustment margin of the transmit power, so that the STA can use the target transmit power for uplink transmission during this uplink transmission. transmission, which is beneficial to improve the success rate of uplink transmission.
  • an information transmission method comprising: an AP receiving a block acknowledgment frame from a STA, where the block acknowledgment frame includes information of a transmission power to be used by the STA to send uplink data.
  • the AP by carrying the transmit power to be used by the STA to send uplink data in the BA frame, the AP can adjust the transmit power of the STA to an appropriate receive power to receive the uplink data, thereby improving the success of uplink transmission. Rate.
  • the block acknowledgment frame further includes an adjustment margin of the transmit power, and the transmit power and the adjustment margin are used by the AP to determine the target transmit power of the STA.
  • a communication apparatus including each module or unit for performing the method of the first aspect or the third aspect, or any possible implementation manner of the first aspect or the third aspect.
  • a communication apparatus including each module or unit for performing the method of the second aspect or the fourth aspect, or any possible implementation manner of the second aspect or the fourth aspect.
  • an apparatus including a processor.
  • the processor is coupled to the memory and can be used to execute instructions in the memory, so that the apparatus performs the above-mentioned first aspect or the third aspect, or the method in any possible implementation manner of the first aspect or the third aspect.
  • the apparatus further includes a memory.
  • the apparatus further includes an interface circuit, and the processor is coupled to the interface circuit.
  • an apparatus including a processor.
  • the processor is coupled to the memory and can be used to execute instructions in the memory, so that the apparatus performs the method of the second aspect or the fourth aspect, or any possible implementation manner of the second aspect or the fourth aspect.
  • the apparatus further includes a memory.
  • the apparatus further includes an interface circuit, and the processor is coupled to the interface circuit.
  • a processor including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor performs the first aspect or the third aspect, or, in any possible implementation manner of the first aspect or the third aspect Methods.
  • the above-mentioned processor may be a chip
  • the input circuit may be an input pin
  • the output circuit may be an output pin
  • the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
  • the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter
  • the circuit can be the same circuit that acts as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • a processor comprising: an input circuit, an output circuit and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the second aspect or the fourth aspect, or, in any possible implementation manner of the second aspect or the fourth aspect Methods.
  • the above-mentioned processor may be a chip
  • the input circuit may be an input pin
  • the output circuit may be an output pin
  • the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
  • the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter
  • the circuit can be the same circuit that acts as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • a processing apparatus including a processor and a memory.
  • the processor is configured to read the instructions stored in the memory, and can receive signals through the receiver and transmit signals through the transmitter, so as to execute the first aspect to the fourth aspect or any one of the possible implementation manners of the first aspect to the fourth aspect method in .
  • the processing device in the eleventh aspect above may be a chip, and the processor may be implemented by hardware or software.
  • the processor When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software
  • the processor may be a general-purpose processor, which is implemented by reading software codes stored in a memory, and the memory may be integrated in the processor or located outside the processor and exist independently.
  • a twelfth aspect provides a computer program product, the computer program product comprising: a computer program (also referred to as code, or instructions), when the computer program is executed, causes the computer to execute the above-mentioned first to fourth aspects Aspect or the method of any of the possible implementations of the first to fourth aspects.
  • a computer program also referred to as code, or instructions
  • a computer-readable medium stores a computer program (also referred to as code, or instruction), when it is run on a computer, causing the computer to execute the above-mentioned first to sixth aspects.
  • a computer program also referred to as code, or instruction
  • a fourteenth aspect provides a communication system, characterized in that it includes the communication device of the fifth aspect and the sixth aspect, or the device of the seventh aspect and the eighth aspect.
  • FIG. 1 is a schematic diagram of a system block diagram that can be applied to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a STA cache query mechanism.
  • FIG. 3 is a schematic flowchart of an information transmission method provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a frame structure of a BAR frame provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a frame structure of a BA frame provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a frame structure of another BA frame provided by an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of another information transmission method provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a communication apparatus provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a communication apparatus provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a communication apparatus provided by an embodiment of the present application.
  • the technical solutions of the embodiments of the present application may be applied to a wireless local area network (Wireless Local Area Network, WLAN).
  • WLAN wireless Local Area Network
  • the WLAN system can access various cellular systems, such as: long term evolution (LTE), LTE frequency division duplex (FDD), LTE time division duplex (TDD), universal mobile communication system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (WiMAX) communication system, fifth generation (5th generation, 5G) system or new radio (new radio, NR), etc.
  • LTE long term evolution
  • FDD LTE frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile communication system
  • WiMAX worldwide interoperability for microwave access
  • 5G fifth generation
  • new radio new radio
  • the AP in the embodiment of the present application is a communication device that has a wireless transceiver function and provides services for the STA, and is also referred to as a wireless access point or a hotspot.
  • APs are access points for mobile users to access wired networks. They are mainly deployed in homes, buildings, and campuses, with a typical coverage radius ranging from tens of meters to hundreds of meters. Of course, they can also be deployed outdoors.
  • AP is equivalent to a bridge connecting wired network and wireless network. Its main function is to connect various wireless network clients together, and then connect the wireless network to Ethernet.
  • the STA in this embodiment of the present application is a communication device with a wireless communication function, which may be a wireless communication chip, a wireless sensor, or a wireless communication terminal.
  • a wireless communication function which may be a wireless communication chip, a wireless sensor, or a wireless communication terminal.
  • a wireless communication function which may be a wireless communication chip, a wireless sensor, or a wireless communication terminal.
  • WiFi wireless fidelity
  • tablet computers supporting WiFi communication functions
  • set-top boxes supporting WiFi communication functions smart TVs supporting WiFi communication functions
  • smart wearable devices supporting WiFi communication functions In-vehicle communication equipment supporting WiFi communication function, computer supporting WiFi communication function, IoT node in IoT supporting WiFi communication function, etc.
  • the AP or STA includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • This hardware layer includes hardware such as central processing unit (CPU), memory management unit (MMU), and memory (also called main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the present application do not specifically limit the specific structure of the execution body of the methods provided by the embodiments of the present application, as long as the program that records the codes of the methods provided by the embodiments of the present application can be executed to provide the methods provided by the embodiments of the present application.
  • the execution subject of the method provided in this embodiment of the present application may be an AP or STA, or a functional module in the AP or STA that can call a program and execute the program, or has the function of an AP or STA chip.
  • various aspects or features of the embodiments of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques.
  • article of manufacture encompasses a computer program accessible from any computer-readable device, carrier or medium.
  • computer readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CDs), digital versatile discs (DVDs) etc.), smart cards and flash memory devices (eg, erasable programmable read-only memory (EPROM), card, stick or key drives, etc.).
  • various storage media described herein can represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • FIG. 1 shows a system block diagram that can be applied to the embodiments of the present application.
  • the system 100 may include at least one STA and one AP, such as AP 110 and STA 120, and AP 110 may communicate with STA 120 through a wireless link. It should be understood that the system 100 may also include more APs and STAs.
  • the IEEE 802.11ax standard introduces orthogonal frequency division multiple access (OFDMA) and multi-user multiple-input multiple-output (MU-MIMO) technologies to solve the problem of multi-user access .
  • OFDMA orthogonal frequency division multiple access
  • MU-MIMO multi-user multiple-input multiple-output
  • user scheduling resource allocation depends on the data buffer and transmission rate information to be sent by the user.
  • the transmission direction from AP to STA is defined as the downlink direction, and vice versa as the uplink direction.
  • the STA user scheduling resources can calculate the allocated bandwidth according to the data buffered on the AP side and the transmission rate obtained by statistics.
  • using OFDMA or MU-MIMO technology for user uplink scheduling needs to know the STA user data buffer information, and the STA user data buffer information is on the STA side, and the AP side needs to obtain this information for scheduling.
  • the IEEE 802.11ax specification defines the STA cache query mechanism.
  • the AP sends a BSRP frame to the STA to query the STA's cache information.
  • FIG. 2 shows an example of AP query and STA feedback buffer information.
  • the AP sends BSRP frames to SAT1-STA4 at the same time.
  • STA1-STA4 feeds back BSR in the frame control field or BSR field of their respective MAC frames, that is, the uplink (uplink, UL) shown in the figure.
  • BSR (STA1)-UL BSR (STA4) where BSR is the buffer information of the STA.
  • the AP After receiving the buffer feedback information of the STA, the AP sends a trigger frame to STA1-STA4 for scheduling resource allocation, and then STA1-STA4 can send uplink data.
  • preamble preamble
  • SIFS short inter-frame spacing
  • the above-mentioned STA cache query mechanism requires the AP to send a BSRP frame for requesting the STA's cache information, and the STA can report the cache information only after receiving the BSRP frame. Such a process will bring a large time overhead, about 300 to 400us, which affects the timely sending of uplink data.
  • the present application provides an information transmission method.
  • the AP can save the process of using the BSRP frame to query the STA's buffer information, thereby saving the cost caused by the process.
  • Time overhead improve scheduling efficiency, and facilitate timely transmission of uplink data.
  • a BA frame is briefly introduced to distinguish a BA frame from a BSRP frame.
  • EDCA enhanced distributed channel access
  • the IEEE 802.11 standard specifies an acknowledgement (ACK) mechanism for ensuring the reliability of wireless transmission.
  • the AP sends the downlink data
  • the STA receives the downlink data and performs demodulation and verification
  • the verification result is fed back to the AP through the BA frame.
  • the AP can learn whether the STA correctly receives the downlink data according to the BA frame.
  • the BSRP frame is a trigger frame that triggers the STA to feed back buffer information
  • the BA frame is used for the STA to feedback whether the downlink data is correctly received, and these two frames are essentially two different frames.
  • the technical solution of the embodiment of the present application is to use the BA frame to feed back the buffer information, so that the AP can obtain the buffer information of the STA by parsing the BA frame without querying the buffer information of the STA through the BSRP frame.
  • FIG. 3 is a schematic flowchart of an information transmission method provided by an embodiment of the present application. Each step of the method 300 shown in FIG. 3 will be described below.
  • the AP sends downlink data to the STA. Accordingly, the STA receives downlink data from the AP.
  • the AP sends a block acknowledgment request frame (ie, a BAR frame) to the STA. Accordingly, the STA receives the BAR frame from the AP.
  • a block acknowledgment request frame ie, a BAR frame
  • the BAR frame is used to request the STA to feed back a block acknowledgment frame (ie, a BA frame).
  • the method 300 includes S310 and S320. That is, the AP may first send downlink data, and then request the STA to perform BA feedback on the downlink data by sending a BAR frame.
  • the second case: the method 300 may include S310 but not S320. That is, the AP can send downlink data without sending the BAR frame, and the STA can perform BA feedback after receiving the downlink data.
  • the third case the AP may not send the downlink data, but send the BAR frame. Even if the STA does not receive the downlink data, as long as the BAR frame is received, it will perform BA feedback.
  • OFDMA supports resource units (RUs) of different sizes. If the AP performs downlink transmission on two RUs with a size of 106 (referred to as RU106) respectively to the other two STAs, then the two RUs with a size of 106 A RU with a size of 26 (referred to as RU26) between RUs cannot be used to send downlink data to the STA. In this case, the RU26 can be used to send a BAR frame to the STA to request the STA to feed back the BA frame.
  • RU106 resource units
  • the STA generates a BA frame.
  • the BA frame includes a buffer status report (ie, BSR), and the BSR is used by the AP to allocate resources for transmitting uplink data to the STA.
  • BSR buffer status report
  • the BA frame further includes indication information, and the indication information is used to indicate whether the STA correctly receives the downlink data.
  • the STA sends the BA frame to the AP. Accordingly, the AP receives the BA frame from the STA.
  • the AP determines the resource for the STA to transmit uplink data according to the BSR in the BA frame.
  • the AP can know the size of the data buffered by the STA, so as to allocate resources for transmitting uplink data to the STA.
  • the AP allocates resources for transmitting uplink data to the STA according to the BSR, reference may be made to the prior art.
  • the AP sends resource scheduling information to the STA.
  • the resource scheduling information indicates the resource determined by the AP in S330.
  • resource scheduling information may be carried in the trigger frame.
  • the STA sends uplink data to the AP according to the resource scheduling information.
  • the STA can feed back the BSR through the BA frame, which can save the process of the AP querying the STA's cache information by using the BSRP frame, thereby saving the time overhead caused by the process.
  • the scheduling efficiency is improved, which is conducive to the timely transmission of uplink data.
  • the BA frame may further include the transmit power to be used by the STA to transmit uplink data. That is to say, in this last uplink transmission, the STA can use the transmission power to send uplink data.
  • the STA's uplink transmit power depends on the AP measurement algorithm. After the AP determines the STA's target transmit power, it can indicate it in the trigger frame, and then the STA adjusts the power by itself according to the target transmit power in the trigger frame. However, since the STA capability is unknown, the STA may not be able to adjust the target transmit power, which may cause uplink transmission failure.
  • the AP by carrying the transmit power to be used by the STA to send uplink data in the BA frame, the AP can adjust the transmit power of the STA to an appropriate receive power to receive the uplink data, thereby improving the success of uplink transmission. Rate.
  • the BA frame may further include an adjustment margin of the transmit power, and the transmit power and the adjustment margin are used by the AP to determine the target transmit power of the STA.
  • the adjustment margin refers to a margin that the STA can adjust based on the transmit power. For example, if the transmit power is 200mW and the adjustment margin is 15mV, it means that the STA can transmit uplink data at a maximum transmit power of 215mW, that is, the transmit power of the STA ranges from 0 to 215mW.
  • the AP After receiving the transmit power of the STA and the adjustment margin of the transmit power, the AP can configure the target transmit power of the STA for this uplink transmission, for example, in the trigger frame carrying the resource scheduling information in S360, configure the target of the STA for this uplink transmission transmit power.
  • the STA may use the target transmit power for uplink transmission, which is beneficial to improve the success rate of uplink transmission.
  • the frame format of the existing BAR frame is shown in FIG. 4 .
  • the BAR frame includes the following fields:
  • Frame Control Frame Control
  • Duration Duration
  • Receiver Address RA
  • Transmitter Address TA
  • BAR Control BAR Control
  • BAR Information BAR Information
  • Frame Check Sequence Frame Check Sequence, FCS.
  • the BAR control field includes the following fields:
  • BAR Ack Policy BAR Ack Policy
  • BAR Type BAR Type
  • Reserved Reserved
  • Traffic Identifier Information Traffic Identifier Information
  • the BAR type field indicates the BAR type.
  • the value in the BAR type field may be one of 0-10, each value represents a different BAR type, and 11-15 are reserved values.
  • the STA may be instructed to feed back the BSR in the BA frame through the BAR type field.
  • the value of the BAR type field when the value of the BAR type field is 11, it indicates that the BAR frame is a BAR frame requesting the STA to feed back the BSR type. After the STA receives the BAR frame, if the value of the BAR type field in the BAR frame is 11, it feeds back the BSR in the BA frame. It should be understood that the value of the BAR type field of 11 indicates that the request for the STA to feed back the BSR is only an example, and it can also be specified that when the value of the BAR type field is a value from 12 to 15, it indicates that the STA is requested to feed back the BSR.
  • bits occupied by the BAR type field are extended to more than 4 bits, other reserved values may also be used to instruct the STA to feed back the BSR.
  • the BAR type field is extended to 6 bits and 45-63 is not used, it can be specified that when the value of the BAR type field is a value of 45-63, the STA is requested to feed back the BSR.
  • the BAR type field can also instruct the STA to feed back the transmission power to be used by the STA to send uplink data in the BA frame, and further instruct the STA to feed back the transmission power in the BA frame. Adjust the margin.
  • the same BAR type that is, when the BAR type field takes a certain value, can instruct the STA to simultaneously feed back the BSR and the transmit power in the BA frame, or simultaneously feed back the BSR, the transmit power, and the adjustment margin of the transmit power.
  • the STA when the BAR type field is a certain value, the STA is instructed to feed back the BSR in the BA frame; when the BAR type field is another value, the STA is instructed to simultaneously feed back the BSR and the transmit power in the BA frame, or feed back the BSR at the same time. , the transmission power, and the adjustment margin of the transmission power. For example, when the value of the BAR type field is 11, it instructs the STA to only feed back the BSR in the BA frame, and does not feed back the transmission power and adjustment margin; when the value of the BAR type field is 12, it instructs the STA to simultaneously feed back the BSR in the BA frame.
  • BSR and the transmit power or feedback the BSR, the transmit power and the adjustment margin of the transmit power at the same time; when the value of the BAR type field is 13, it instructs the STA to feed back only the transmit power or only the transmit power and the transmit power in the BA frame Adjustment headroom for power without feedback BSR.
  • the STA may be instructed to feed back the BSR in the BA frame through the reserved field in the BAR control field in the BAR frame.
  • one of the bits in the reserved field in the BAR control field may be used to instruct the STA to feed back the BSR in the BA frame.
  • the bit may be the highest or lowest bit in the reserved field, which is not limited in this embodiment of the present application. When the bit is 1, it indicates that the STA feeds back the BSR in the BA frame; when the bit is 0, it indicates that the STA does not need to feed back the BSR in the BA frame. Or the meanings of 0 and 1 can be reversed.
  • the reserved field can also instruct the STA to feed back the transmission power that the STA will use to send uplink data in the BA frame, and further instruct the STA to feed back the transmission power in the BA frame. Adjust the margin. That is, the reserved field may instruct the STA to simultaneously feed back the BSR and the transmit power in the BA frame, or simultaneously feed back the BSR, the transmit power, and an adjustment margin of the transmit power.
  • the B5-B6 bits in the BAR control field (that is, the first two bits in the reserved field) can be used to instruct the STA to feed back the BSR in the BA frame or feed back the BSR at the same time. and the transmit power.
  • the values and corresponding meanings of the bits B5-B6 may be shown in Table 1.
  • B5 B6 description (ie, meaning) 0 0 0 No feedback on BSR and transmit power is requested 1 0 Request Feedback BSR 0 1 request feedback transmit power 1 1 Request feedback on BSR and transmit power
  • the STA only feeds back the BSR in the BA frame, but does not feed back the transmission power and the adjustment margin of the transmission power ; If the value of B5-B6 is 11, the STA simultaneously feeds back the BSR and the transmit power in the BA frame, and can further feed back the adjustment margin of the transmit power.
  • the BAR type field and the reservation field may be used to jointly instruct the STA to feed back the BSR in the BA frame.
  • the BAR type field and the reservation field may be used to jointly instruct the STA to simultaneously feed back the BSR and the transmit power in the BA frame.
  • the STA may be instructed to feed back the BSR and/or the transmit power in the BA frame through the BAR type field. That is, according to the value in the BAR type field, the STA can know that one or both of the BSR and the transmit power need to be fed back, but it does not know whether to feed back the BSR, the transmit power, or both. At this time, the STA may be further instructed by the reserved field to specifically feed back which item of the BSR and the transmit power, or to feed back at the same time.
  • the B1-B6 bits in the BAR control field can be used to instruct the STA to feed back in the BA frame
  • the BSR or the BSR and the transmit power are fed back at the same time.
  • the values and corresponding meanings of the bits B1-B6 may be shown in Table 2.
  • B1-B4 in the BAR control domain may also take other reserved values, such as 12 or 13.
  • the frame format of the BAR frame shown in FIG. 4 is only an example, and the BAR frame provided by the embodiment of the present application may also adopt a frame format different from that shown in FIG. 4 , such as the frame of the BAR frame provided by the embodiment of the present application.
  • the format may also be a new frame format proposed as technology evolves.
  • the frame format of the existing BA frame is shown in FIG. 5 .
  • the BA frame includes the following fields:
  • the BAR control field includes the following fields:
  • the BA type field indicates the BA type.
  • the value in the BA type field may be one of 0-10, each value represents a different BA type, and 11-15 are reserved values.
  • the BA type field and the BAR type field take the same value, the meaning is the same.
  • the BA type field may indicate that the STA feeds back the BSR in the BA frame, that is, the BA frame includes the BSR.
  • the value of the BA type field when the value of the BA type field is 11, it indicates that the BA frame includes a BSR. It should be understood that the value of 11 in the BA type field indicates that the BA frame includes the BSR is only an example, and it can also be specified that the value of the BA type field is a value from 12 to 15, indicating that the BA frame includes the BSR. It should also be understood that if the bits occupied by the BA type field are extended to more than 4 bits, other reserved values may also be used to indicate that the BA frame includes a BSR. For example, if the BA type field is extended to 6 bits and 45-63 is not used, it can be specified that the BA frame includes a BSR when the value of the BA type field is one of 45-63.
  • the BA type field may also indicate that the BA frame includes the transmission power to be used for sending uplink data, and further may indicate that the BA frame includes an adjustment margin of the transmission power.
  • the same BA type that is, when the BA type field takes a certain value, can indicate that the STA simultaneously feeds back the BSR and the transmit power in the BA frame, or simultaneously feeds back the BSR, the transmit power, and the adjustment margin of the transmit power .
  • the BA type field when the BA type field is a certain value, it indicates that the STA has fed back the BSR in the BA frame; when the BA type field is another value, it indicates that the STA has fed back the BSR and the transmit power simultaneously in the BA frame, or at the same time.
  • the BSR, the transmission power, and the adjustment margin of the transmission power are fed back. For example, when the value of the BA type field is 11, it indicates that the STA has fed back the BSR in the BA frame, but not the transmission power and adjustment margin; when the value of the BA type field is 12, it indicates that the STA has fed back the BSR in the BA frame at the same time.
  • the BSR and the transmit power are fed back, or the BSR, the transmit power, and the adjustment margin of the transmit power are fed back at the same time; when the value of the BA type field is 13, it indicates that the STA only fed back the transmit power or only fed back the transmit power in the BA frame.
  • the transmission power and the adjustment margin of the transmission power are not fed back.
  • the AP sends a BAR frame
  • the value of the BAR type field in the BAR frame and the value of the BA type field in the BA frame may be the same. That is, the AP indicates what kind of information the STA feeds back through the BAR, and the STA feeds back the information indicated by the AP in the BA frame.
  • the reserved field in the BA control field in the BA frame may be used to indicate that the STA has fed back the BSR in the BA frame.
  • one of the bits in the reserved field in the BA control field may be used to indicate that the STA has fed back the BSR in the BA frame.
  • the bit may be the highest or lowest bit in the reserved field, which is not limited in this embodiment of the present application. When the bit is 1, it indicates that the STA has fed back the BSR in the BA frame; when the bit is 0, it indicates that the STA has not fed back the BSR in the BA frame. Or the meanings of 0 and 1 can be reversed.
  • the STA may indicate in the reservation field in the BA control field in the BA frame.
  • the STA feeds back the BSR in the BA frame.
  • the highest bit of the reserved field in the BAR control field indicates that the STA feeds back the BSR in the BA frame
  • the highest bit of the reserved field in the BA control field can indicate that the STA feeds back the BSR in the BA frame, and the two The values of the most significant bits can be the same.
  • the reserved field in the BA control field can also be used to instruct the STA to feed back the transmission power to be used by the STA to send uplink data in the BA frame, and further instruct the STA to feed back the adjustment of the transmission power in the BA frame.
  • the reserved field may indicate that the STA has simultaneously fed back the BSR and the transmit power in the BA frame, or simultaneously fed back the BSR, the transmit power, and the adjustment margin of the transmit power.
  • the B5-B6 bits in the BA control field (that is, the first two bits in the reserved field) can be used to indicate that the STA has fed back the BSR in the BA frame or fed back at the same time.
  • the BSR and the transmit power The values and corresponding meanings of the bits B5-B6 may be shown in Table 3.
  • B5 B6 description (ie, meaning) 0 0 0 No feedback BSR and transmit power 1 0 Feedback on BSR 0 1 The transmit power is fed back 1 1 Feedback of BSR and transmit power
  • the BA type field and the reservation field may be used to jointly indicate that the STA has fed back the BSR in the BA frame.
  • the BA type field and the reservation field may be used to jointly indicate that the STA has fed back the BSR and the transmit power simultaneously in the BA frame.
  • the BA type field may indicate that the STA has fed back the BSR and/or the transmit power in the BA frame. That is, according to the value in the BA type field, the AP can learn that the STA has fed back one or both of the BSR and the transmit power, but does not know whether to feed back the BSR, the transmit power, or both.
  • the reserved field may further indicate which item of the BSR and the transmit power is specifically fed back by the STA, or fed back at the same time.
  • the B1-B6 bits in the BA control field can be used to instruct the STA to feed back in the BA frame
  • the BSR or the BSR and the transmit power are fed back at the same time.
  • the values and corresponding meanings of the bits B1-B6 may be shown in Table 4.
  • B1-B4 in the BA control domain can also take other reserved values, such as 12 or 13.
  • the frame format of the BA frame shown in FIG. 5 is only an example, and the BA frame provided by the embodiment of the present application may also adopt a frame format different from that shown in FIG. 5 , such as the BA frame provided by the embodiment of the present application.
  • the frame format may also be a new frame format proposed as technology evolves.
  • the STA may feed back the BSR through the BSR field in the BA frame, that is, the BSR field in the BA frame includes the BSR.
  • a BSR field can be added to the existing BA frame, and the BSR field can carry the BSR.
  • the embodiments of the present application do not limit the bits occupied by the BSR field.
  • the embodiment of the present application also does not limit the position of the BSR field in the BA frame.
  • the BSR field is immediately after the BA information field, or the BSR field can also be in other positions, such as immediately after the BA control field.
  • BSR domain in this document is only an exemplary name, and the domain carrying the BSR may also have other names.
  • the STA may feed back the transmit power through the transmit power field in the BA frame, that is, the transmit power field in the BA frame includes the transmit power.
  • the STA may feed back the adjustment margin of the transmit power through an adjustment margin (Power adj Capability) field in the BA frame.
  • Adjust margin Power adj Capability
  • a transmit power (STA Tx Power) field may be added to the existing BA frame or the BA frame to which the BSR field has been added, and the transmit power field may carry the transmit power. Further, an adjustment headroom field may be added, and the adjustment headroom field carries the adjustment headroom of the transmit power.
  • the transmit power field may occupy 1 byte, and the indicated transmit power is: 10*n(mW), where n is the value of the transmit power field, and the value range of n is 0-255.
  • the adjustment margin field may occupy 1 byte, and the indicated adjustment margin is: 10*m(mW), where m is the value of the adjustment margin field, and the value range of m is 0-255.
  • the embodiments of the present application do not limit the bits occupied by the transmit power field and the adjustment margin field.
  • This embodiment of the present application also does not limit the positions of the transmit power domain and the adjustment margin domain in the BA frame.
  • the transmit power domain is immediately after the BSR domain
  • the adjustment margin domain is immediately after the transmit power domain
  • the transmission The power domain and adjustment margin domain can also be in other positions, such as the transmit power domain can be immediately after the BA control domain.
  • transmission power field and the “adjustment headroom” field are only exemplary names, and the fields carrying the transmission power and adjustment headroom may also have other names. Furthermore, it is also possible to carry the transmit power and the adjustment margin in one domain.
  • the STA may feed back the BSR through the reserved field in the BA control field in the BA frame, that is, the reserved field in the BA control field in the BA frame includes the BSR.
  • the BSR may be carried through some or all of the bits in the reserved field in the BA control field. If a part of bits in the BA control field has been used to indicate that the STA has fed back the BSR through the BA, part or all of the remaining bits in the BA control field may be used to indicate that the reserved field in the BA control field in the BA frame includes: BSR.
  • the BSR can be carried through B5-B11 in the reserved field in the BA control domain.
  • the range of BSR indicated by 7 bits of B5-B11 may be 0-10MB, wherein 0-10KB, the resolution is 1KB; 20KB-100KB, the resolution is 10KB; 200KB-1MB, the resolution is 100KB; 2MB- 10MB with a resolution of 1MB.
  • the STA may also feed back the transmit power, or feed back the transmit power and the adjustment margin through the reserved field in the BA control field in the BA frame.
  • the transmit power can be carried by B5-B11 in the reserved field in the BA control field.
  • the range of transmit power indicated by a total of 7 bits of B5-B11 may be 0-31.75dBm, wherein the resolution is 0.25dBm.
  • B5-B8 can be used to carry BSR
  • B9-B11 can be used to carry transmit power.
  • the BSR range indicated by 4 bits of B5-B8 may be 0-10MB, wherein, 0-10KB, the resolution is 2.5KB; 25KB-100KB, the resolution is 25KB; 500KB-1MB, the resolution is 500KB; 2M -10MB with 2MB resolution.
  • the range of transmit power indicated by a total of 3 bits of B9-B11 may be 0-28dBm, wherein 0-4dBm, the resolution is 2dBm, and 8-28dBm, wherein the resolution is 5dBm.
  • FIG. 7 is a schematic flowchart of another information transmission method provided by an embodiment of the present application. Each step of the method 700 shown in FIG. 7 will be described below.
  • S710-S720 the same as S310-S320, can refer to S310-S320.
  • the STA generates a BA frame.
  • the BA frame includes the transmit power to be used by the STA to transmit uplink data.
  • the BA frame may further include an adjustment margin of the transmission power.
  • the STA sends the BA frame to the AP. Accordingly, the AP receives the BA frame from the STA.
  • the AP may determine the receive power according to the transmit power in the BA frame, and then use the receive power to receive uplink data sent by the STA subsequently.
  • the STA's uplink transmit power depends on the AP measurement algorithm. After the AP determines the STA's target transmit power, it can indicate it in the trigger frame, and then the STA adjusts the power by itself according to the target transmit power in the trigger frame. However, since the STA capability is unknown, the STA may not be able to adjust the target transmit power, which may cause uplink transmission failure.
  • the AP by carrying the transmit power to be used by the STA to send uplink data in the BA frame, the AP can adjust the transmit power of the STA to an appropriate receive power to receive the uplink data, thereby improving the success of uplink transmission. Rate.
  • the method may further include the following steps:
  • the AP determines the target transmit power of the STA according to the transmit power and the adjustment margin.
  • the AP sends the target transmit power to the STA. Accordingly, the STA receives the target transmit power from the AP.
  • the AP may carry the target transmit power in the trigger frame.
  • the STA uses the target transmit power to transmit uplink data to the AP.
  • the AP can configure the target transmit power of the STA for this uplink transmission based on the transmit power reported by the STA and the adjustment margin of the transmit power, so that the STA can use the target transmit power for uplink transmission during this uplink transmission. transmission, which is beneficial to improve the success rate of uplink transmission.
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and inherent logic.
  • the various numerical numbers or serial numbers involved in the above processes are only for the convenience of description, and should not constitute any limitation on the implementation process of the embodiments of the present application.
  • FIG. 8 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • the communication apparatus 1000 may include a transceiver unit 1100 and a processing unit 1200 .
  • the transceiving unit 1100 may include a transmitting unit and/or a receiving unit.
  • the transceiver unit 1100 may be a transceiver (including a transmitter and/or a receiver), an input/output interface (including an input and/or output interface), a pin or a circuit, and the like.
  • the transceiver unit 1100 may be configured to perform the sending and/or receiving steps in the above method embodiments.
  • the processing unit 1200 may be a processor (which may include one or more), a processing circuit with a processor function, and the like, and may be used to perform other steps in the foregoing method embodiments except for sending and receiving.
  • the communication device may further include a storage unit, which may be a memory, an internal storage unit (eg, a register, a cache, etc.), an external storage unit (eg, a read-only memory, a random access memory, etc.), etc. .
  • the storage unit is used for storing instructions, and the processing unit 1200 executes the instructions stored in the storage unit, so that the communication device executes the above method.
  • the communication apparatus 1000 may correspond to the STA in the foregoing method embodiment, and may perform the operations performed by the STA in the foregoing method.
  • the communication apparatus 1000 may correspond to the STA of the method 300 , and may perform the steps involved in the method 300 .
  • the processing unit 1200 is configured to generate a block acknowledgment frame, where the block acknowledgment frame includes a buffer status report of the communication device 1000 , and the buffer status report is used by the access point AP to allocate a transmission uplink for the communication device 1000 data resources; the transceiver unit 1100 sends the block acknowledgment frame to the AP.
  • the block ack type field in the block ack control field in the block ack frame indicates that the block ack frame includes the buffer status report.
  • the buffer status report field in the block ack frame includes the buffer status report; or, the reserved field in the block ack control field in the block ack frame includes the buffer status report.
  • the transceiver unit 1100 is further configured to: receive downlink data from the AP.
  • the transceiver unit 1100 is further configured to: receive a block ack request frame from the AP, where the block ack request frame instructs the communication apparatus 1000 to feed back the buffer status report.
  • the block ack request type field in the block ack request control field in the block ack request frame instructs the communication apparatus 1000 to feed back the cache status report; or, the block ack request in the block ack request frame
  • the reserved field in the control field instructs the communication apparatus 1000 to feed back the buffer status report; or, the block ack request type field and the reserved field jointly instruct the communication apparatus 1000 to feed back the buffer status report.
  • the communication device 1000 may correspond to the STA of the method 700 , and may perform the steps involved in the method 700 .
  • the processing unit 1200 is configured to generate a block acknowledgment frame, where the block acknowledgment frame includes information about the transmit power to be used by the communication device 1000 to send uplink data; the transceiver unit 1200 is configured to send the block acknowledgment to the access point AP frame.
  • the block acknowledgment frame further includes an adjustment margin of the transmission power, and the transmission power and the adjustment margin are used by the AP to determine the target transmission power of the communication apparatus 1000 .
  • the communication device 1000 may correspond to the AP in the above method embodiment, and may perform the operations performed by the AP in the above method.
  • the communication device 1000 may correspond to the AP of the method 300 , and may perform the steps involved in the method 300 .
  • the transceiver unit 1100 is configured to receive a block acknowledgment frame from a station STA, where the block acknowledgment frame includes a buffer status report of the STA; the processing unit 1200 is configured to determine the STA to transmit according to the buffer status report Resource of uplink data; the transceiver unit 1100 is further configured to send resource scheduling information to the STA, where the resource scheduling information indicates the resource.
  • the block ack type field in the block ack control field in the block ack frame indicates that the block ack frame includes the buffer status report.
  • the buffer status report field in the block ack frame includes the buffer status report; or, the reserved field in the block ack control field in the block ack frame includes the buffer status report.
  • the transceiver unit 1100 is further configured to: send downlink data to the STA.
  • the transceiving unit 1100 is further configured to: send a block ack request frame to the STA, where the block ack request frame instructs the STA to feed back the buffer status report.
  • the block ack request type field in the block ack request control field in the block ack request frame instructs the STA to feed back the buffer status report; or, the block ack request control field in the block ack request frame
  • the reserved field in instructs the STA to feed back the buffer status report; or, the block ack request type field and the reserved field jointly instruct the STA to feed back the buffer status report
  • the communication device 1000 may correspond to the AP of the method 700 , and may perform the steps involved in the method 700 .
  • the transceiver unit 1100 is configured to receive a block acknowledgment frame from the STA, where the block acknowledgment frame includes information about the transmission power to be used by the STA to send uplink data.
  • the block acknowledgment frame further includes an adjustment margin of the transmission power, and the transmission power and the adjustment margin are used by the AP to determine the target transmission power of the communication apparatus 1000 .
  • processing unit may be implemented by hardware or software, or may be implemented by a combination of software and hardware.
  • FIG. 9 is a schematic structural diagram of a communication device provided by the present application. As shown in FIG. 9 , the communication apparatus 2000 can be applied to the communication system shown in FIG. 1 to perform the functions of the AP in the foregoing method embodiments.
  • Communication device 2000 may include processor 2001 .
  • the processor 2001 may also be referred to as a processing unit, and may implement certain control functions.
  • the processor 2001 can be used to control the communication device 2000, execute software programs, and process data of the software programs.
  • the processor 2001 may also store instructions and/or data, and the instructions and/or data may be executed by the processor 2001, so that the communication apparatus 2000 performs the above method embodiments method described.
  • the communication apparatus 2000 may include a memory 2002, on which instructions may be stored, and the instructions may be executed on the processor, so that the communication apparatus 2000 executes the methods described in the above method embodiments .
  • data may also be stored in the memory.
  • instructions and/or data may also be stored in the processor.
  • the processor and the memory can be provided separately or integrated together. For example, the corresponding relationship described in the above method embodiments may be stored in a memory or in a processor.
  • the communication apparatus 2000 may include a baseband circuit 2003, which is mainly used for baseband processing.
  • the communication apparatus 2000 may include a radio frequency circuit 2004, which is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals to baseband signals, for example, for sending the BAR frames in the above method embodiments.
  • the radio frequency circuit 2004 may also be referred to as a transceiver unit, a transceiver, a transceiver circuit, a transceiver, or the like.
  • the communication apparatus 2000 may include an antenna 2005, which is mainly used for signal transmission and reception.
  • the communication apparatus 2000 may include a bus 2006 for connecting various parts of the communication apparatus 2000, such as the above-mentioned processor 2001, memory 2002, baseband circuit 2003, radio frequency circuit 2004 and antenna 2005.
  • FIG. 10 is a schematic structural diagram of a communication apparatus 3000 provided by the present application.
  • FIG. 10 only shows the main components of the communication device 3000 .
  • the communication apparatus 3000 can be applied to the communication system as shown in FIG. 1 to perform the functions of the STA in the foregoing method embodiments.
  • the communication device 3000 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used to process communication protocols and communication data, control the entire communication device 3000, execute software programs, and process data of the software programs, for example, to support the communication device 3000 to execute the STA described in the above method embodiments the operation performed.
  • the memory is mainly used to store software programs and data.
  • the control circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal.
  • the control circuit together with the antenna can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data .
  • FIG. 10 only shows one memory and a processor.
  • the memory may also be referred to as a storage medium or a storage device, etc., which is not limited in this embodiment of the present application.
  • the processor may include a baseband processor and a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data
  • the central processing unit is mainly used to control the entire communication device 3000.
  • the software program is executed, and the data of the software program is processed.
  • the processor in FIG. 10 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit may also be independent processors, interconnected by technologies such as a bus.
  • the communication device 3000 may include multiple baseband processors to adapt to different network standards, the communication device 3000 may include multiple central processors to enhance its processing capability, and the various components of the communication device 3000 may use various bus connection.
  • the baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • an antenna and a control circuit with a transceiver function may be regarded as the transceiver unit 3001 of the communication apparatus 3000
  • a processor with a processing function may be regarded as the processing unit 3002 of the communication apparatus 3000
  • the communication apparatus 3000 includes a transceiver unit 3001 and a processing unit 3002 .
  • the transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, or the like.
  • the device for implementing the receiving function in the transceiver unit 3001 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 3001 may be regarded as a transmitting unit, that is, the transceiver unit 3001 includes a receiving unit and a transmitting unit.
  • the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, and the like
  • the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, or the like.
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable circuits.
  • Programming logic devices, discrete gate or transistor logic devices, discrete hardware components may also be a system on chip (SoC), a central processor unit (CPU), or a network processor (network processor).
  • SoC system on chip
  • CPU central processor unit
  • network processor network processor
  • processor can also be a microcontroller (micro controller unit, MCU), can also be a programmable logic device (programmable logic device, PLD) or other integrated chips.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code is run on a computer, the computer executes any of the foregoing methods to implement The method on the STA side or the AP side in the example.
  • the present application further provides a computer-readable medium, where the computer-readable medium stores program codes, when the program codes are executed on a computer, the computer is made to execute the foregoing method embodiments.
  • STA side or AP side method STA side or AP side method.
  • the present application further provides a system, which includes the aforementioned one or more APs and one or more STAs.
  • An embodiment of the present application further provides a processing apparatus, including a processor and an interface, where the processor is configured to execute the method in any of the foregoing method embodiments.
  • the above processing device may be a chip. In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line, DSL) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media.
  • the available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, high-density digital video discs (DVDs)), or semiconductor media (eg, solid state discs, SSD)) etc.
  • a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, or a computer.
  • an application running on a computing device and the computing device may be components.
  • One or more components may reside within a process or thread of execution, and a component may be localized on one computer or distributed among 2 or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • a component may, for example, pass a signal through a local system based on a signal having one or more data packets (such as data from two components interacting with another component between a local system, a distributed system, or a network, such as the Internet interacting with other systems through signals). or remote process to communicate.
  • a signal having one or more data packets (such as data from two components interacting with another component between a local system, a distributed system, or a network, such as the Internet interacting with other systems through signals). or remote process to communicate.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: a U disk, a removable hard disk, a read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk and other media that can store program codes.

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

Abstract

La présente demande concerne un procédé de transmission d'informations et un dispositif de communication, capables d'améliorer l'efficacité de programmation et de faciliter une transmission en temps opportun de données de liaison montante. Spécifiquement, une STA génère une trame d'accusé de réception de bloc, la trame d'accusé de réception de bloc comprenant un rapport d'état de mémoire tampon de la STA ; puis la STA envoie la trame d'accusé de réception de bloc à un point d'accès, AP. Par le transport du rapport d'état de mémoire tampon dans la trame d'accusé de réception de bloc, le processus selon lequel l'AP interroge des informations mises en mémoire cache de la STA à l'aide d'une trame BSRP peut être omis, et ainsi la dépense de temps causée par ce processus peut être réduite.
PCT/CN2021/113498 2020-09-30 2021-08-19 Procédé de transmission d'informations et dispositif de communication WO2022068457A1 (fr)

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