WO2022160318A1 - Appareil et procédé de traitement de données - Google Patents

Appareil et procédé de traitement de données Download PDF

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Publication number
WO2022160318A1
WO2022160318A1 PCT/CN2021/074559 CN2021074559W WO2022160318A1 WO 2022160318 A1 WO2022160318 A1 WO 2022160318A1 CN 2021074559 W CN2021074559 W CN 2021074559W WO 2022160318 A1 WO2022160318 A1 WO 2022160318A1
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data
processing
processing module
cache
phy layer
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PCT/CN2021/074559
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English (en)
Chinese (zh)
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张一凡
梁伟
沈寅涛
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华为技术有限公司
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Priority to CN202180089669.0A priority Critical patent/CN116762302A/zh
Priority to PCT/CN2021/074559 priority patent/WO2022160318A1/fr
Publication of WO2022160318A1 publication Critical patent/WO2022160318A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

Definitions

  • the present application relates to the technical field of wireless local area networks, and in particular, to a data processing apparatus and method.
  • WLAN Wireless Local Area Network
  • WLAN refers to the application of wireless communication technology to interconnect electronic devices to form a network system that can communicate with each other and realize resource sharing.
  • the computer network architecture is divided into seven layers, and the bottom layer of the computer network system is the physical layer (Physical, PHY), and the computer network adopts different The transmission medium corresponds to different physical layers.
  • the second layer of the computer network system is the data link layer, and the upper part of the data link layer is the logical link control sub-layer (LLC), which is responsible for sending data to the physical layer correctly.
  • the lower half of the road layer is the media access control (MAC) sublayer, which is responsible for controlling and connecting the physical medium of the physical layer.
  • the function of each protocol layer in the communication device is implemented by the corresponding protocol layer processing module, for example, the PHY layer processing module implements the function of the PHY layer, and the MAC layer processing module implements the function of the MAC sublayer.
  • the MAC layer processing module in the access point frames the received data and outputs it to the PHY layer processing module, and the PHY layer processing module codes the received data.
  • the PHY layer processing module in the AP decodes, descrambles, and splices the received data into a MAC layer format and sends it to the MAC layer processing module in the AP.
  • the data processing and transmission performed by the MAC layer processing module and the PHY layer processing module in the AP is a time-sequential process.
  • the requirements for the transmission rate of the PHY layer are getting higher and higher.
  • the transmission rate of the PHY layer reaches 9.8Gbps.
  • WLAN communication also introduces functions such as Orthogonal Frequency Division Multiple Access (OFDMA) and Multi-User Multiple-Input Multiple-Output (MU_MIMO).
  • OFDMA Orthogonal Frequency Division Multiple Access
  • MU_MIMO Multi-User Multiple-Input Multiple-Output
  • the AP needs to reserve CB processing capability and CB buffer for each user according to the maximum transmission rate of each user; for another example, if the AP supports multi-cell communication, the AP needs to CB processing capacity and CB buffer are reserved for each cell according to the maximum specification of each cell, but it is rare that all cells or all users need to transmit data at the same time, which will lead to a waste of buffer resources. Therefore, the multi-cell or multi-user communication in the current WLAN system has high requirements on the CB processing capability and CB cache of the AP, and is prone to waste of resources.
  • the present application provides a data processing apparatus and method, which are used to solve the problem that an AP needs to reserve a large processing capacity and a buffer in WLAN communication.
  • an embodiment of the present application provides a data processing apparatus, which is applied to an access point AP, and includes: a MAC layer processing module and a PHY layer processing module;
  • the MAC layer processing module is used for: receiving the first data, and estimating the first data amount and the second data amount corresponding to the first data, wherein the first data amount is the first data amount performed on the first data.
  • the data volume of the second data obtained after processing, the second data volume is the data volume after encoding the second data; the remaining storage space in the target cache is respectively greater than or equal to the storage of the first data volume.
  • the PHY layer processing module is configured to: acquire the second data from the target buffer, perform coding processing on the second data to obtain third data, and perform modulation processing on the third data.
  • the MAC layer processing module in the data processing device performs the data processing process only after it is determined that the first data can be processed, so that the target cache can be used flexibly to realize the data processing, without the need to perform data processing for each user or user.
  • Each cell reserves buffer or data processing capacity to reduce buffer overhead.
  • the PHY layer processing module can obtain data from the target buffer and perform encoding processing without the need to perform encoding processing strictly according to the time sequence of the data, thereby improving the flexibility of data processing.
  • the PHY layer processing module is further configured to: acquire fourth data, perform demodulation processing on the fourth data, and obtain fifth data; and estimate the third data corresponding to the fifth data amount and the fourth data amount, wherein the third data amount is the data amount of the fifth data, and the fourth data amount is the data amount after decoding the fifth data; When the remaining storage space is greater than or equal to the storage space required for storing the third data amount and the fourth data amount respectively, decoding the fifth data to obtain the sixth data;
  • the MAC layer processing module is further configured to: acquire the sixth data from the target cache, and perform second data processing on the sixth data.
  • the PHY layer processing module in the data processing device will only perform the data processing process after it is determined that the fifth data can be processed, so that the target cache can be used flexibly to achieve data processing without the need to pre-register for each user or each cell. Reserve cache or data processing capacity to reduce cache overhead.
  • the data processing apparatus further includes the target cache, where the target cache is used to store data.
  • the MAC layer processing module is further configured to: before putting the second data into the target cache, perform the following steps according to the first data amount, the second data amount and the target
  • the remaining storage space of the cache determines the configuration information corresponding to the second data, the configuration information includes a first cache address and a second cache address, and the first cache address corresponds to the second data in the target cache
  • the address of the second cache is the address corresponding to the third data obtained after encoding the second data in the target cache; the configuration information corresponding to the second data is sent to the PHY layer for processing module;
  • the MAC layer processing module is specifically configured to: put the second data into the target cache according to the first cache address.
  • the PHY layer processing module is further configured to: before acquiring the second data from the target cache, receive configuration information corresponding to the second data sent by the MAC layer processing module ;
  • the PHY layer processing module is specifically configured to: acquire the second data from the target cache according to the first cache address.
  • the PHY layer processing module includes a PHY layer coding and decoding module and a PHY layer modulation and demodulation module;
  • the PHY layer encoding and decoding module is configured to: encode the second data to obtain the third data, and put the third data into the target cache according to the second cache address;
  • the PHY layer modulation and demodulation module is configured to: obtain third data from the target buffer according to the second buffer address, and perform modulation processing on the third data.
  • the MAC layer processing module in the data processing apparatus can determine the configuration information corresponding to the second data, and put the second data into the target cache according to the first cache address in the configuration information corresponding to the second data, thereby
  • the PHY layer processing module encodes the second data, it obtains the second data from the target cache according to the first cache address in the configuration information corresponding to the second data, and encodes the obtained data according to the second cache address.
  • the third data is put into the target cache, and the PHY layer processing module does not need to encode or decode the data strictly according to the data timing, but only needs to obtain the data from the target cache according to the configuration information, and process the encoding according to the configuration information to obtain
  • the data is put into the target cache, and the physical layer out-of-order encoding is flexibly implemented.
  • the MAC layer processing module when the MAC layer processing module performs the first data processing on the first data, it is specifically configured to: perform format conversion processing and data segmentation processing on the first data.
  • the MAC layer processing module implements format conversion processing and data processing on the first data.
  • the second data is obtained by dividing and processing, so that the PHY layer processing module can directly obtain the second data from the target cache for encoding processing without strictly following the data sequence, enabling the PHY layer processing module to perform encoding processing out of order, improving data Handling flexibility.
  • the PHY layer processing module when the PHY layer processing module performs modulation processing on the third data, it is specifically configured to: acquire a data identifier of the third data, and determine the data identifier according to the data identifier of the third data. the time sequence of the third data, and modulate the third data according to the time sequence of the third data.
  • the PHY layer processing module in the data processing apparatus provided by the embodiment of the present application performs modulation processing on the third data according to the time sequence, so as to restore the data time sequence and ensure the accuracy of data processing.
  • the PHY layer processing module is further configured to: after performing modulation processing on the third data, send a buffer release notification to the MAC layer processing module;
  • the MAC layer processing module is further configured to: receive a cache release notification sent by the PHY layer processing module, and update the remaining storage space of the target cache according to the storage space of the released target cache included in the cache release notification .
  • the data processing apparatus provided by the embodiment of the present application can maintain the remaining storage space of the target cache according to the cache release notification, so as to ensure that the remaining storage space of the target cache maintained by the MAC layer processing module is correct.
  • the MAC layer processing module is further configured to: send notification information to the PHY layer processing module after placing the second data in the target cache;
  • the PHY layer processing module is further configured to receive notification information sent by the MAC layer processing module before acquiring the second data from the target cache.
  • the MAC layer processing module in the data processing device provided by the embodiment of the present application puts the second data obtained after encoding processing into the target cache, it sends notification information to the PHY layer processing module to notify the PHY layer processing module to continue processing the second data.
  • the encoding process realizes data transmission through the interaction process between the MAC layer processing module and the PHY layer processing module.
  • the PHY layer processing module is further configured to: before decoding the fifth data, according to the third data amount, the fourth data amount and the remaining storage space Determine the configuration information corresponding to the fifth data, the configuration information includes a third cache address and a fourth cache address, the third cache address is the address corresponding to the fifth data in the target cache, the The fourth cache address is the address corresponding to the sixth data obtained after decoding the fifth data in the target cache; and the configuration information corresponding to the fifth data is sent to the MAC layer processing module.
  • the MAC layer processing module is further configured to: receive configuration information corresponding to the fifth data sent by the PHY layer processing module;
  • the MAC layer processing module acquires the sixth data from the target cache, it is specifically configured to: acquire the sixth data from the target cache according to the fourth cache address.
  • the PHY layer processing module includes a PHY layer modulation and demodulation module and a PHY layer coding and decoding module;
  • the PHY layer modulation and demodulation module is configured to: put the fifth data into the target buffer according to the third buffer address;
  • the PHY layer encoding and decoding module is configured to: obtain the fifth data from the target cache according to the third cache address, perform decoding processing on the fifth data to obtain sixth data, and obtain sixth data according to the fourth The cache address puts the sixth data into the target cache.
  • the PHY layer processing module in the data processing apparatus provided by the embodiment of the present application can determine the configuration information corresponding to the fifth data.
  • the PHY layer processing module does not need to perform encoding processing or decoding processing on the data strictly according to the data timing, but only needs to perform encoding processing or decoding processing on the data according to the configuration.
  • the information obtains data from the target cache, and puts the data obtained after encoding processing into the target cache according to the configuration information, and flexibly realizes out-of-order decoding of the physical layer.
  • the MAC layer processing module when the MAC layer processing module performs the second data processing on the sixth data, it is specifically configured to: perform data splicing processing and format conversion processing on the sixth data.
  • the MAC layer processing module implements data splicing processing and format conversion on the first data
  • the sixth data is obtained by processing, so that the PHY layer processing module can directly put the sixth data obtained after decoding into the target buffer, without the need to process it strictly according to the data timing, so that the PHY layer processing module can perform decoding processing out of order, improving the Data processing flexibility.
  • the MAC layer processing module when the MAC layer processing module performs the second data processing on the sixth data, it is specifically configured to: acquire the data identifier of the sixth data, according to the data identifier of the sixth data The time sequence of the sixth data is determined, and second data processing is performed on the sixth data according to the time sequence of the sixth data.
  • the MAC layer processing module in the data processing apparatus provided by the embodiment of the present application performs second data processing on the sixth data according to the time sequence, so as to restore the data time sequence and ensure the accuracy of the data processing.
  • the MAC layer processing module is further configured to: send a buffer release notification to the PHY layer processing module;
  • the PHY layer processing module is further configured to: receive a cache release notification sent by the MAC layer processing module, and update the remaining storage space of the target cache according to the storage space of the released target cache included in the cache release notification .
  • the data processing apparatus provided by the embodiment of the present application can maintain the remaining storage space of the target cache according to the cache release notification, so as to ensure that the remaining storage space of the target cache maintained by the PHY layer processing module is correct.
  • the PHY layer processing module is further configured to send notification information to the MAC layer processing module after placing the sixth data in the target cache;
  • the MAC layer processing module is further configured to receive notification information sent by the PHY layer processing module before acquiring the sixth data from the target cache.
  • the PHY layer processing module in the data processing device provided by the embodiment of the present application puts the sixth data obtained after decoding into the target cache, it sends notification information to the MAC layer processing module to notify the MAC layer processing module to continue processing the first stream data.
  • the second data processing is performed, and data transmission is realized through the interaction process between the PHY layer processing module and the MAC layer processing module.
  • an embodiment of the present application provides a data processing method, which is applied to an access point AP.
  • the method includes: receiving first data through a MAC layer, and estimating a first data amount and second data corresponding to the first data wherein, the first data volume is the data volume of the second data obtained after the first data processing is performed on the first data, and the second data volume is the data volume after the encoding processing is performed on the second data.
  • Data volume when the remaining storage space of the target cache is greater than or equal to the storage space required for storing the first data volume and the second data volume, perform the first data processing on the first data to obtain the first data volume.
  • Two data put the second data into the target cache through the MAC layer; obtain the second data from the target cache through the PHY layer, and perform encoding processing on the second data, obtaining third data; and performing modulation processing on the third data through the PHY layer.
  • the method further includes: acquiring fourth data through the PHY layer, and performing demodulation processing on the fourth data to obtain fifth data; determining the fifth data through the PHY layer The third data amount and the fourth data amount corresponding to the data, wherein the third data amount is the data amount of the fifth data, and the fourth data amount is the data obtained by decoding the fifth data. data amount; when the remaining storage space of the target cache is respectively greater than or equal to the storage space required for storing the third data amount and the fourth data amount, the fifth data is decoded to obtain the sixth data; put the sixth data into the target cache through the PHY layer; obtain the sixth data from the target cache through the MAC layer, and perform second data processing on the sixth data .
  • the configuration information includes a first cache address and a second cache address
  • the first cache address is the address corresponding to the second data in the target cache
  • the The second cache address is the address corresponding to the third data obtained after encoding the second data in the target cache
  • the MAC layer puts the second data into the target cache according to the first cache address the target cache.
  • the PHY layer obtains the second data from the target cache according to the first cache address.
  • the second data is encoded by the PHY layer to obtain the third data, and the third data is put into the target cache according to the second cache address; Obtain third data from the target buffer through the PHY layer according to the second buffer address, and perform modulation processing on the third data.
  • format conversion processing and data segmentation processing are performed on the first data through the MAC layer.
  • the data identifier of the third data is obtained through the PHY layer, the time sequence of the third data is determined according to the data identifier of the third data, and the sequence of the third data is paired according to the time sequence of the third data.
  • the third data is subjected to modulation processing.
  • the remaining storage space of the target cache is updated through the MAC layer.
  • the fifth data is determined according to the third data amount, the fourth data amount and the remaining storage space
  • the configuration information includes a third cache address and a fourth cache address
  • the third cache address is the address corresponding to the fifth data in the target cache
  • the fourth cache address is a pair of The address corresponding to the sixth data obtained after the fifth data is decoded and processed in the target cache.
  • the sixth data is obtained from the target cache through the MAC layer according to the fourth cache address.
  • the PHY layer puts the fifth data into the target cache according to the third cache address; and obtains the fifth data from the target cache according to the third cache address data, decode the fifth data to obtain sixth data, and put the sixth data into the target cache according to the fourth cache address.
  • data splicing processing and format conversion processing are performed on the sixth data through the MAC layer.
  • the data identifier of the sixth data is obtained through the MAC layer, the time sequence of the sixth data is determined according to the data identifier of the sixth data, and the sequence of the sixth data is paired according to the time sequence of the sixth data.
  • the sixth data is subjected to second data processing.
  • the remaining storage space of the target cache is updated by the PHY layer.
  • an embodiment of the present application further provides a computer program, which, when the computer program runs on a computer, causes the computer to execute the method provided in the second aspect.
  • an embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a computer, the computer is made to execute the above-mentioned second aspect provided method.
  • an embodiment of the present application further provides a chip, where the chip is configured to read a computer program stored in a memory and execute the method provided in the second aspect.
  • an embodiment of the present application further provides a chip system, where the chip system includes a processor for supporting a computer device to implement the method provided in the second aspect.
  • the chip system further includes a memory for storing necessary programs and data of the computer device.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • Fig. 1 is a kind of OSI seven-layer framework schematic diagram
  • FIG. 2 is a system schematic diagram of a WLAN deployment scenario provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of the data processing process of the MAC layer and the PHY layer in the downlink AP in a WLAN system;
  • FIG. 4 is a schematic diagram of the data processing process of the MAC layer and the PHY layer in the uplink direction AP in a WLAN system;
  • FIG. 5 is a schematic structural diagram of a data processing apparatus provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a data processing process when a data processing apparatus according to an embodiment of the present application performs data processing on downlink data;
  • FIG. 7 is a schematic diagram of a data processing process when a data processing apparatus according to an embodiment of the present application performs data processing on uplink data;
  • FIG. 8 is a schematic structural diagram of a data processing device involved in an AP downlink communication process in a WLAN system provided by an embodiment of the present application;
  • FIG. 9 is a flowchart of a data processing method in an AP downlink communication process in a WLAN system provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a data processing apparatus involved in an AP uplink communication process in a WLAN system provided by an embodiment of the application;
  • FIG. 11 is a flowchart of a data processing method in an AP uplink communication process in a WLAN system provided by an embodiment of the present application.
  • OSI Open System Interconnection Reference Model
  • ISO International Organization for Standardization
  • the OSI reference model defines the Hierarchy and services provided by each layer.
  • the OSI seven-layer protocol defines the 7-level framework of the computer network architecture.
  • Figure 1 is a schematic diagram of the 7-level framework of an OSI reference model. Refer to Figure 1.
  • the bottom-up 7 levels in the OSI reference model are respectively Physical layer, data link layer, network layer, transport layer, session layer, presentation layer and application layer.
  • the WLAN framework mainly includes the data link layer and the physical layer (Physical, PHY) of the OSI reference model, wherein the PHY layer is the bottom layer of the computer network architecture, and the computer network uses different transmission media corresponding to different physical layers.
  • the data link layer is the second layer of the computer network system, and the upper part of the data link layer is the logical link control sub-layer (LLC), which is responsible for sending data to the physical layer correctly.
  • the lower half of the road layer is the media access control (MAC) sublayer, which is responsible for controlling and connecting the physical medium of the physical layer.
  • the WLAN framework may include a MAC layer and a PHY layer.
  • each protocol layer in the communication device is implemented by the corresponding protocol layer module.
  • the PHY layer processing module implements the function of the PHY layer
  • the MAC layer processing module entity implements the function of the MAC layer.
  • the PHY layer processing module can be The PHY layer processing circuit
  • the MAC layer processing module may be a MAC processing circuit.
  • Different protocol layer processing modules may be located in separate communication devices, or may be located in the same communication device. Unless otherwise specified, the MAC layer processing module and the PHY layer processing module in the embodiments of the present application are both processing modules in the AP. .
  • Cache which refers to the memory that can perform high-speed data exchange. It is used to store data transmitted between devices with asynchronous speeds or devices with different priorities. By storing data in the cache, inter-process communication can be reduced. Time to wait.
  • the data after the MAC layer framing is put into the MAC-PHY interaction buffer, and the PHY layer processing module in the AP starts from
  • the MAC-PHY interaction buffer retrieves data, and the PHY layer processing module in the AP performs data format conversion or data length conversion on the retrieved data, and then performs encoding processing or decoding processing.
  • the function of the MAC-PHY interaction buffer is to temporarily store the data processed by the MAC layer processing module.
  • the embodiment of the present application provides a target buffer.
  • the target buffer may be located in a PHY layer processing module in an AP, shared by multiple cells or users, and used to store data in the AP.
  • the PHY layer processing module encodes the data before and after the encoding process, and is used to store the data before the decoding process and after the decoding process by the PHY layer processing module in the AP.
  • the upper limit value of the cache space occupied by different cells in the target cache in different scenarios may also be preconfigured for the target cache, so as to meet the service requirements of different cells.
  • the target cache is shared by cell A, cell B, and cell C
  • cell A has high service requirements, for example, cell A is a public place such as a school or a shopping mall, and cell B and cell C have low service requirements
  • the upper limit of the cache space of the target cache that can be occupied by cell A is greater than the upper limit of the cache space of the target cache that can be occupied by either cell B or cell C. For example, if the cache space of the target cache is 100, it can be pre-configured.
  • the upper limit of the buffer space of the target buffer occupied by cell A is 50, and the upper limit of the buffer space of the target buffer occupied by cell B and cell C and cell D is both 25.
  • the upper limit value of the cache space of the target cache that can be occupied is preconfigured for multiple cells according to different scenarios, so that the target cache can be effectively used, thereby improving the jitter resistance of the data processing method provided by the embodiment of the present application.
  • the embodiments of the present application may be applied to a WLAN.
  • the WLAN may include one or more basic service sets (Basic Service Sets, BSSs), and the network nodes in the basic service sets include APs and STAs.
  • BSSs Basic Service Sets
  • Each basic service set may contain one AP and multiple STAs associated with the AP.
  • FIG. 2 is a system schematic diagram of a WLAN deployment scenario.
  • the WLAN system shown in FIG. 2 includes one AP and three STAs (STA1, STA2 and STA3 in the figure), and one AP and three STAs constitute a BSS.
  • the AP communicates with STA1, STA2 and STA3 respectively, and the communication between the STAs is completed through AP forwarding.
  • AP also known as access point or hotspot, etc.
  • 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.
  • the AP may be a terminal device or a network device with a wireless fidelity (Wireless Fidelity, WiFi) chip.
  • wireless fidelity Wireless Fidelity, WiFi
  • the STA can be a wireless communication chip, a wireless sensor or a wireless communication terminal device.
  • a wireless communication chip for example: mobile phones that support WiFi communication, tablet computers that support WiFi communication, set-top boxes that support WiFi communication, smart TVs that support WiFi communication, smart wearable devices that support WiFi communication, in-vehicle communication that supports WiFi communication Devices and computers that support WiFi communication functions, etc.
  • the AP in the WLAN system shown in FIG. 2 may include a MAC processing module and/or a PHY layer processing module for implementing data processing and transmission processes at the MAC layer and/or the PHY layer.
  • Figure 3 is a schematic diagram of the data processing process of the MAC layer and the PHY layer in the AP in the downlink direction in a WLAN system, wherein the MAC layer frames the received data, and puts the data obtained after framing into the MAC-PHY interaction buffer middle.
  • the PHY layer obtains the data from the MAC-PHY interaction buffer, it performs code block (CB) segmentation, scrambling and other processing to obtain the data to be encoded.
  • CB code block
  • the PHY layer calls the encoder to encode the data to be encoded, and puts the encoded data into the interleaving map buffer.
  • the PHY layer invokes the interleaving and mapping module to perform interleaving and mapping processing on the data in the interleaving and mapping buffer.
  • FIG. 4 is a schematic diagram of a data processing process of a MAC layer and a PHY layer in an AP in an uplink direction in a WLAN system, wherein the PHY layer demodulates the received data to obtain data to be decoded.
  • the PHY puts the data to be decoded into the decoding buffer, and calls the decoder to decode the data to be decoded.
  • the PHY layer then performs descrambling, CB splicing, etc. on the data obtained by the decoding process, and then puts the obtained data into the MAC-PHY interaction buffer. After the MAC layer obtains data from the MAC-PHY interaction buffer, it parses the obtained data.
  • the AP 2 supports multi-user or multi-cell communication, in order for the AP to process the data transmitted by the multi-user or multi-cell in parallel, if the AP supports multi-user communication in a single cell, the AP needs to The maximum transmission rate of the maximum transmission rate reserves CB processing capacity and CB buffer for each user, or when the AP supports multi-cell communication, the AP needs to reserve CB processing capacity and CB buffer for each cell according to the maximum specification of each cell. It is rare that a cell or all users need to perform data transmission at the same time, which will lead to a waste of buffer resources.
  • the current WLAN multi-cell or multi-user communication has high requirements on the CB processing capability and CB cache of the AP, and is prone to waste of resources.
  • FIG. 5 is a schematic structural diagram of a data processing apparatus provided by an embodiment of the present application.
  • the apparatus includes a MAC layer processing module and a PHY layer processing module.
  • the MAC layer processing module may be a MAC layer processing circuit for implementing the MAC layer processing function in the AP.
  • the PHY layer processing module may be a PHY layer processing circuit for implementing the PHY layer processing function in the AP.
  • the data processing apparatus may further include a target buffer, and the target buffer may be a buffer in a MAC layer processing circuit or a PHY layer processing circuit in the data processing apparatus, or may be an independent buffer in the data processing apparatus.
  • the target buffer is a buffer in the PHY layer processing circuit as an example.
  • the data processing apparatus provided by the embodiment of the present application can perform the data processing process in the downlink direction in the WLAN system and the data processing process in the uplink direction in the WLAN system. Introduce the function:
  • the MAC layer processing module is configured to: receive the first data, and estimate the first data amount and the second data amount corresponding to the first data; wherein , the first data volume is the data volume of the second data obtained after the first data processing is performed on the first data, and the second data volume is the data volume after the encoding processing is performed on the second data; the remaining storage space in the target cache is respectively When the storage space is greater than or equal to the storage space required for storing the first data amount and the second data amount, perform the first data processing on the first data to obtain the second data; and put the second data into the target cache.
  • the PHY layer processing module is used for: acquiring the second data from the target buffer, and performing coding processing on the second data to obtain third data; and performing modulation processing on the third data.
  • the MAC layer processing module includes a MAC layer data reading module, and the MAC layer data reading module is configured to receive first data, and the first data may be data received by the MAC layer entity from the wired side, The wired side is used to establish the connection between the AP and the network.
  • the MAC layer processing module further includes a MAC layer scheduling module, and after the MAC layer data reading module receives the first data, the MAC layer scheduling module is used to estimate the first data amount corresponding to the first data. and the second amount of data.
  • the first data volume is the data volume of the second data obtained after the MAC layer processing module performs the first data processing on the first data
  • the second data volume is the data volume after the PHY layer processing module encodes the second data.
  • the first data processing may be format conversion processing and data segmentation processing performed by the MAC layer processing module on the data.
  • the MAC layer scheduling module is specifically configured to: determine the data volume of the second data according to the data volume of the first data and the first data processing rule, and use the determined data volume of the second data as the first data volume. For example, if the first data processing is format conversion processing and data segmentation processing, the MAC layer scheduling module may determine the second data obtained by performing format conversion processing and data segmentation processing on the first data according to the format conversion rules and data segmentation rules. The amount of data. The MAC layer scheduling module may determine the second data amount corresponding to the first data according to the data amount of the second data and the PHY layer encoding rule.
  • the MAC layer scheduling module does not perform the first data processing on the first data
  • the PHY layer processing module does not encode the second data
  • the MAC layer processing module estimates the first data according to the rules of the first data processing. a data amount, and the second data amount is estimated according to the PHY layer coding rule.
  • the MAC layer scheduling module is specifically configured to: when the remaining storage space of the target cache is greater than or equal to the storage space required to store the first data amount and the second data amount, respectively, trigger the The flow of the first data processing is performed.
  • the remaining storage space of the target cache is greater than or equal to the storage space required to store the first data amount and the second data amount, indicating that the remaining storage space of the target cache can be used to store the second data and the third data, then the MAC layer scheduling module can Continue to schedule execution of data processing steps.
  • the MAC layer scheduling module schedules the data processing process after determining that the first data can be processed, so that the target buffer can be flexibly used for data processing without reserving buffers for each user or each cell or data processing capability, reducing cache overhead.
  • the MAC layer scheduling module will suspend the data processing flow for the first data, and the remaining storage space of the target cache will be suspended.
  • the storage space is updated, judge again whether the remaining storage space of the target cache is greater than or equal to the storage space required by the first data amount or the second data amount, respectively, until the remaining storage space of the target cache is greater than or equal to the first data amount or the second data amount, respectively.
  • the process of performing the first data processing on the first data is triggered.
  • the MAC layer processing module in the embodiment of the present application may further include a MAC layer data processing module, and the MAC layer data processing module is configured to perform first data processing on the first data to obtain second data.
  • the first data processing may be format conversion processing and data segmentation processing.
  • the MAC layer data processing module may perform physical layer service data unit (PHY Service Data Unit, PSDU) encapsulation processing and scrambling on the first data. processing, and then data segmentation is performed to segment the data obtained after the scrambling process into second data of a preset length.
  • PHY Service Data Unit PHY Service Data Unit
  • the PHY layer performs code block segmentation, scrambling and other processing on the data.
  • the MAC layer data processing module implements format conversion processing and data segmentation processing for the first data.
  • the second data is obtained, so that the PHY layer processing module can directly obtain the second data from the target cache for encoding processing without strictly following the data sequence, realize out-of-order scheduling data encoding at the PHY layer, improve data processing flexibility, and at the same time
  • the target buffer can be flexibly occupied without reserving buffer space for each cell or each user, thereby reducing the buffer overhead.
  • the MAC layer scheduling module is further configured to: determine configuration information corresponding to the second data according to the first data amount, the second data amount and the remaining storage space.
  • the configuration information includes a first cache address and a second cache address, the first cache address is the address corresponding to the second data in the target cache, and the second cache address is the third data obtained by encoding the second data in The corresponding address in the target cache.
  • the MAC layer scheduling module may determine the first cache address according to the first data amount and the remaining storage space of the target cache, and the MAC layer scheduling module may determine the second cache address according to the second data amount and the remaining storage space of the target cache. For example, if the remaining storage space of the current target cache is 0-99 and the first data amount corresponding to the first data is 8, the MAC layer scheduling module determines that the first cache address is 0-7. If the remaining storage space of the current target cache is 0-99, and the second data amount corresponding to the first data is 16, the MAC layer scheduling module determines that the first cache address is 0-15.
  • the MAC layer scheduling module is further configured to: put the second data obtained after processing by the MAC layer data processing module into the target cache.
  • the MAC layer scheduling module puts the second data into the target cache according to the first cache address.
  • the MAC layer scheduling module is further configured to: send notification information and configuration information corresponding to the second data to the PHY layer processing module, where the notification information is used to notify the PHY layer processing module to perform the second data processing. encoding process.
  • the configuration information corresponding to the second data may be included in the notification information. That is, the MAC layer scheduling module may send notification information to the PHY layer scheduling module, where the notification information includes configuration information corresponding to the second data.
  • the PHY layer processing module further includes a PHY layer encoding and decoding module, and the PHY layer encoding and decoding module is configured to: obtain the second data from the target cache according to the first cache address, and perform encoding processing on the second data to obtain the third data, and put the third data into the target cache according to the second cache address.
  • the encoding process may be a low density parity check code (Low Density Parity Check, LDPC)/binary convolutional code (Binary Convolutional Code, BCC) encoding process.
  • LDPC Low Density Parity Check
  • BCC Binary Convolutional Code
  • the PHY layer encoding and decoding module in the embodiment of the present application performs encoding processing on the second data
  • the second data is obtained from the target cache according to the first cache address in the configuration information corresponding to the second data
  • the second data is obtained according to the first cache address in the configuration information corresponding to the second data.
  • the second cache address puts the third data obtained after the encoding process into the target cache.
  • the PHY layer encoding and decoding module does not need to encode the data strictly according to the data timing, but only needs to obtain the data from the target cache according to the configuration information.
  • the configuration information puts the data obtained after encoding processing into the target buffer, and flexibly implements out-of-order encoding or decoding at the PHY layer.
  • the PHY layer processing module further includes a PHY layer modulation and demodulation module, and the PHY layer modulation and demodulation module is configured to: acquire third data from the target cache according to the second cache address, and perform a processing on the third data. Modulation processing.
  • the PHY layer modulation and demodulation module when the PHY layer modulation and demodulation module modulates the third data, in order to ensure the accuracy of the data obtained after the modulation processing, the third data needs to be guaranteed before the modulation processing is performed on the third data. sequential processing.
  • the PHY layer modulation and demodulation module after the PHY layer modulation and demodulation module obtains the third data from the target buffer according to the second buffer address in the configuration information, the PHY layer modulation and demodulation module obtains the data identifier (for example, the data identifier may be a code block number), and the time sequence of the third data is determined according to the data identifier.
  • the PHY layer modulation and demodulation module modulates the third data according to the time sequence, so as to restore the data time sequence and ensure the accuracy of the data process.
  • the PHY layer modulation and demodulation module is further configured to: send a buffer release notification to the MAC layer processing module, and the buffer release notification is used to notify the MAC layer processing module of the storage space of the target cache corresponding to the buffer release notification. has been released.
  • the MAC layer processing module is further configured to: update the remaining storage space of the target cache according to the storage space of the released target cache included in the cache release notification.
  • the cache release notification includes the storage space of the released target cache.
  • the MAC layer processing module updates the remaining storage space of the target cache according to the storage space of the released target cache, for example, Before the MAC layer processing module receives the cache release notification, the remaining storage space of the target cache is 16-99, and the storage space of the released target cache is 8-15, then the MAC layer processing module updates according to the storage space of the released target cache The remaining storage space of the target cache is 8-99.
  • FIG. 6 is a schematic diagram of a data processing process when the data processing apparatus according to an embodiment of the present application performs data processing on downlink data.
  • the MAC layer processing module estimates the first data corresponding to the first data. For a data volume and a second data volume, when the remaining storage space of the target cache is greater than or equal to the storage space required to store the first data volume and the second data volume, respectively, it means that the remaining space of the target cache can be used to store the first data volume and the second data volume.
  • the MAC layer processing module puts the second data into the target buffer, and the PHY layer processing module obtains the second data from the target buffer and encodes the second data.
  • the MAC layer processing module will only perform the data processing process after determining that the first data can be processed, so that the target buffer can be used flexibly to achieve data processing without reserving buffers or data processing for each user or each cell. ability to reduce cache overhead.
  • the PHY layer processing module can obtain data from the target buffer and perform encoding processing without the need to perform encoding processing strictly according to the time sequence of the data, thereby improving the flexibility of data processing.
  • the PHY layer processing module is used for:
  • the MAC layer processing module is configured to: obtain sixth data from the target cache, and perform second data processing on the sixth data.
  • the PHY layer processing module includes a PHY layer modulation and demodulation module, and the PHY layer modulation and demodulation module is used to obtain fourth data, and perform demodulation processing on the fourth data to obtain fifth data.
  • the fourth data may be data sent by the terminal device side.
  • the fourth data may be data sent by any STA in STA1 , STA2 or STA3 .
  • the PHY layer processing module includes a PHY layer scheduling module, and after the PHY layer modulation and demodulation module demodulates the fourth data and obtains the fifth data, the PHY layer scheduling module is used to estimate the data.
  • the third data volume and the fourth data volume corresponding to the fifth data wherein the third data volume is the data volume of the fifth data, and the fourth data volume is the data volume after decoding the fifth data.
  • the PHY layer scheduling module is specifically configured to: determine the data amount after decoding the fifth data according to the data amount of the fifth data and the PHY layer decoding rule.
  • the PHY layer scheduling module does not perform decoding processing on the fifth data, but estimates the fourth data amount according to the data amount of the fifth data and the decoding rule.
  • the PHY layer scheduling module is specifically configured to: when the remaining storage space of the target cache is greater than or equal to the storage space required to store the third data amount and the fourth data amount, respectively, triggering the processing of the fifth data
  • the flow of decoding processing is performed. That is to say, when the remaining storage space of the target cache is greater than or equal to the storage space required to store the third data amount and the fourth data amount respectively, it means that the remaining storage space of the target cache can be used to store the fifth data and the storage space for the fifth data.
  • the PHY layer scheduling module can continue to schedule and execute the decoding processing steps, so that the target buffer can be flexibly occupied to realize data processing without reserving buffer or data for each user or each cell processing power, reducing cache overhead.
  • the PHY layer scheduling module will suspend the data processing flow for the fifth data, and the remaining storage space of the target cache After the storage space is updated, it is judged again whether the remaining storage space of the target cache is greater than or equal to the storage space required by the third data volume or the fourth data volume, respectively, until the remaining storage space of the target cache is greater than or equal to the third data volume or the third data volume, respectively.
  • the process of decoding the fifth data is triggered.
  • the PHY layer scheduling module is further configured to determine configuration information corresponding to the fifth data according to the third data amount, the fourth data amount and the remaining storage space.
  • the configuration information includes a third cache address and a fourth cache address, the third cache address is the address corresponding to the fifth data in the target cache, and the fourth cache address is the sixth data obtained by decoding the fifth data The corresponding address in the target cache.
  • the specific manner in which the PHY layer scheduling module determines the configuration information corresponding to the fifth data can be implemented by referring to the manner in which the MAC layer scheduling module in the MAC layer processing module determines the configuration information corresponding to the second data during downlink communication in the embodiment of the present application. No longer.
  • the PHY layer scheduling module is further configured to: put the fifth data into the target cache according to the third cache address.
  • the PHY layer processing module may further include a PHY layer encoding and decoding module, and the PHY layer encoding and decoding module is configured to: obtain the fifth data from the target cache according to the third cache address, and decode the fifth data. code processing to obtain sixth data, and put the sixth data into the target cache according to the fourth cache address.
  • the decoding process may be a low density parity check code (Low Density Parity Check, LDPC)/binary convolutional code (Binary Convolutional Code, BCC) decoding process.
  • the PHY layer scheduling module is further configured to: send notification information and configuration information corresponding to the fifth data to the MAC layer processing module, wherein the notification information is used to notify the MAC layer to process The module performs second data processing on the sixth data.
  • the configuration information corresponding to the fifth data may be included in the notification information. That is, the PHY layer scheduling module may send notification information to the MAC layer scheduling module, where the notification information includes configuration information corresponding to the fifth data.
  • the MAC layer processing module may include a MAC layer data processing module, and the MAC layer data processing module is configured to acquire sixth data from the target cache according to the fourth cache address, and perform second data processing on the sixth data,
  • the second data processing may be data splicing processing and format conversion processing.
  • the MAC layer data processing module may perform data splicing processing on the sixth data, and perform descrambling processing and PSDU parsing processing on the data obtained after the data splicing processing.
  • the MAC layer data processing module performs the second data processing on the sixth data, in order to ensure the accuracy of the data obtained after the second data processing, before performing the second data processing on the sixth data, it is necessary to perform the second data processing on the sixth data.
  • Six data are processed in order.
  • the MAC layer data processing module obtains the sixth data from the target cache according to the fourth cache address
  • the MAC layer data processing module obtains the data identification of the sixth data (such as the data identification can be the code block number. ), and the time sequence of the sixth data is determined according to the data identifier.
  • the MAC layer data processing module performs second data processing on the sixth data according to the time sequence, so as to restore the data time sequence and ensure the accuracy of the data processing.
  • the MAC layer processing module is further configured to: send a buffer release notification to the PHY layer processing module, and the buffer release notification is used to notify the PHY layer processing module that the storage space of the target cache corresponding to the buffer release notification has been released. occupied.
  • the PHY layer processing module is further configured to: update the remaining storage space of the target cache according to the storage space of the released target cache included in the cache release notification.
  • the specific manner of updating the remaining storage space of the target cache by the PHY layer processing module can be implemented by referring to the manner in which the MAC layer processing module updates the remaining storage space of the target cache during downlink communication in the embodiment of the present application, and the repeated details will not be repeated.
  • FIG. 7 is a schematic diagram of a data processing process when the data processing apparatus according to an embodiment of the present application performs data processing on uplink data.
  • the PHY layer modulates the fourth data to obtain The fifth data, estimate the third data volume and the fourth data volume corresponding to the fifth data, when the remaining storage space of the target cache is respectively greater than or equal to the storage space required to store the third data volume and the fourth data volume, respectively, Indicates that the remaining space of the target cache can be used to store the fifth data and the data after decoding and processing the fifth data, then the PHY layer processing module decodes the fifth data, and decodes the obtained third data after decoding.
  • the sixth data is put into the target cache, and the MAC layer processing module performs second data processing on the sixth data after acquiring the sixth data from the target cache. It can be seen that the PHY layer processing module will only perform the data processing process after determining that the fifth data can be processed, so that the target buffer can be used flexibly to achieve data processing without reserving buffers or data processing for each user or each cell. ability to reduce cache overhead.
  • the MAC layer processing module may include at least one submodule, for example, the MAC layer processing module may include a MAC layer scheduling module and a MAC layer data processing module. processing module.
  • the PHY layer processing module may also include at least one sub-module, for example, the PHY layer processing module may include a PHY layer scheduling module, a PHY layer coding and decoding module, or a PHY layer modulation and demodulation module.
  • the embodiments of the present application do not limit the MAC layer processing module and the PHY layer processing module.
  • the MAC layer processing module can respectively implement the functions of the MAC layer processing module in the uplink data processing and downlink data processing processes through the same or different sub-modules.
  • the PHY layer processing module can also respectively implement the functions of the PHY layer processing module in the process of uplink data processing and downlink data processing through the same or different sub-modules.
  • the sub-modules and their functions that may be involved in the uplink data processing and downlink data processing of the WLAN system are introduced below:
  • the data processing apparatus includes a MAC layer processing module and a PHY layer processing module, wherein the MAC layer processing module includes a MAC layer Data reading module, MAC layer target cache maintenance module, MAC layer scheduling module and MAC layer downlink data processing module, PHY layer processing module includes target buffer, PHY layer encoder module and PHY layer modulation module.
  • the MAC layer processing module includes a MAC layer Data reading module, MAC layer target cache maintenance module, MAC layer scheduling module and MAC layer downlink data processing module
  • PHY layer processing module includes target buffer, PHY layer encoder module and PHY layer modulation module.
  • the MAC layer data reading module is used to obtain data from the wired side.
  • the MAC layer target cache maintenance module is used to maintain the remaining storage space of the target cache to assist the MAC layer scheduling module to determine whether the data processing process can be performed.
  • the MAC layer target buffer maintenance module can update the remaining storage space of the target buffer according to the instruction of scheduling data processing by the MAC layer scheduling module or the buffer release notification sent by the PHY layer entity.
  • the MAC layer processing module may include at least one MAC layer target cache maintenance module, and each MAC layer target cache maintenance module corresponds to one cell.
  • the MAC layer scheduling module is used to judge whether data processing can be performed according to the remaining storage space of the target cache maintained by the MAC layer target cache maintenance module and the data amount of the data to be encoded, and then flexibly schedule the downlink data processing flow according to the remaining storage space of the target cache.
  • the MAC layer processing module may include at least one MAC layer scheduling module, and each MAC layer scheduling module corresponds to one cell.
  • the MAC layer downlink data processing module is used to perform MAC layer downlink data processing on the data received by the MAC layer, specifically, performing format conversion processing and data segmentation processing on the data, wherein the format conversion processing can be encapsulation processing, scrambling processing processing etc.
  • the MAC layer downlink data processing module may be shared by multiple cells.
  • the MAC layer entity may include at least one MAC layer downlink data processing module, and each MAC layer downlink data processing module 304 corresponds to at least one cell.
  • the target buffer is used to store the data before and after the encoding processing by the PHY layer processing module.
  • the target buffer can be shared by multiple cells.
  • the PHY layer processing module includes at least one target buffer , and each target buffer is used to store downlink data of at least one cell. It should be noted that when designing the target cache, it is necessary to determine the maximum amount of data after encoding or decoding according to the preset encoding rules and decoding rules, and ensure that the cache space of the target cache can be used to store at least A maximum amount of data.
  • the PHY layer encoder module is used to encode the data stored in the target buffer.
  • the PHY layer encoder module can be implemented in an encoder resource pool manner, and the PHY layer encoder module can perform encoding processing of at least one encoding rule. Density Parity Check, LDPC)/Binary Convolutional Code (Binary Convolutional Code, BCC) encoder, the PHY layer encoder module can perform both LDPC encoding and BCC encoding on the data.
  • the PHY layer encoder module may also be shared by multiple cells.
  • the PHY layer processing module includes at least one PHY layer encoder module, and each PHY layer encoder module is used for at least one PHY layer encoder module. The data corresponding to the cell is coded.
  • the PHY layer modulation module is used to modulate the encoded data.
  • FIG. 9 provides a flowchart of a data processing method for AP downlink communication in a WLAN system according to an embodiment of the present application, and the method includes the following steps:
  • the MAC layer data reading module receives the first data.
  • the first data received by the MAC layer data reading module may be downlink data received from the wired side.
  • the MAC layer scheduling module obtains the remaining storage space of the target cache maintained by the MAC layer target cache maintenance module.
  • the MAC layer target cache maintenance module may send the remaining storage space of the target cache to the MAC layer scheduling module.
  • the MAC layer scheduling module estimates the first data amount and the second data amount corresponding to the first data.
  • the first data volume is the data volume of the second data obtained after the first data processing is performed on the first data
  • the second data volume is the data volume after the encoding processing is performed on the second data
  • the first data processing may be MAC Layer downlink data processing.
  • the MAC layer scheduling module calculates the first data amount corresponding to the first data according to the MAC layer downlink data processing rule.
  • the downlink data processing of the MAC layer is to perform format conversion processing and segmentation processing on the first data, and the first data amount corresponding to the first data is determined according to the data amount of the first data, the format conversion rule, and the segmentation rule.
  • the MAC layer scheduling module determines the data amount of the third data obtained by encoding the second data according to the PHY layer encoding rule, and takes the data amount of the third data as the second data amount corresponding to the first data.
  • the MAC layer downlink data processing is not performed on the first data, but the first data corresponding to the first data is calculated according to the data volume of the first data, the MAC layer downlink data processing rules and the PHY layer encoding rules. amount and the second amount of data.
  • the MAC layer scheduling module determines that data processing can be performed on the first data according to the first data amount, the second data amount corresponding to the first data, and the remaining storage space of the target cache.
  • the MAC layer scheduling module determines that the remaining storage space of the target cache is greater than or equal to the storage space required for storing the first data amount and the second data amount, respectively, it is determined that data processing can be performed on the first data. Specifically, the MAC layer scheduling module determines that the remaining storage space of the target cache is greater than or equal to the storage space required for storing the first data amount, indicating that the remaining storage space of the target cache can be used to store the second data, and the MAC layer can store the second data. Put into the target buffer for encoding by the PHY layer.
  • the MAC layer scheduling module determines that the remaining storage space of the target cache is greater than or equal to the storage space required for storing the second data, indicating that the remaining storage space of the target cache can be used to store the third data obtained by encoding the second data,
  • the PHY layer may perform encoding processing on the second data, and put the third data obtained by encoding processing into the target buffer.
  • the MAC layer scheduling module can judge whether the remaining storage space of the target cache is enough to store the second data and the third data, so as to start the downlink data processing when the remaining storage space of the target cache is enough to store the second data and the third data process, so that data corresponding to different cells or users can flexibly occupy the target buffer, and it is not necessary to reserve a large enough buffer space for each cell or user, thereby saving overhead.
  • the MAC layer scheduling module determines configuration information corresponding to the second data.
  • the configuration information includes a first cache address and a second cache address corresponding to the second data, the first cache address is the address corresponding to the second data in the target cache, and the second cache address is for encoding the second data.
  • the address corresponding to the third data obtained later is in the target cache.
  • the MAC layer scheduling module determines the configuration information corresponding to the second data according to the first data amount corresponding to the second data, the second data amount and the remaining storage space of the target cache. Specifically, the MAC layer scheduling module determines the first cache address according to the first data volume corresponding to the second data and the remaining storage space of the target cache, and the MAC layer scheduling module determines the first cache address according to the second data volume corresponding to the second data and the remaining storage space of the target cache The space determines the second cache address.
  • the MAC layer scheduling module sends the first data to the MAC layer downlink data processing module.
  • the MAC layer downlink data processing module performs format conversion processing and data segmentation processing on the first data to obtain second data.
  • the MAC layer downlink data processing module performs physical layer service data unit (PHY Service Data Unit, PSDU) encapsulation processing and scrambling processing on the first data, and then performs data segmentation, and then performs the scrambling processing.
  • PHY Service Data Unit PHY Service Data Unit
  • PSDU physical layer service data unit
  • the MAC layer downlink data processing module puts the second data into the target cache according to the first cache address in the configuration information.
  • the MAC layer downlink data processing module sends notification information to the PHY layer encoder module, where the notification information includes configuration information corresponding to the second data.
  • the PHY layer encoder module acquires the second data from the target cache according to the first cache address in the configuration information corresponding to the second data.
  • the PHY layer encoder module performs encoding processing on the second data to obtain third data.
  • the PHY layer encoder module puts the third data into the target cache according to the second cache address in the configuration information corresponding to the second data.
  • the PHY layer modulation module acquires the third data from the target cache according to the second cache address in the configuration information corresponding to the second data.
  • the PHY layer modulation module acquires the data identifier of the third data, determines the time sequence of the third data, and modulates the third data according to the time sequence.
  • the PHY layer modulation module sends a buffer release notification to the MAC layer target buffer maintenance module.
  • the MAC layer target cache maintenance module updates the remaining storage space of the target cache according to the storage space of the released target cache included in the cache release notification.
  • the data processing apparatus includes a PHY layer processing module and a MAC layer processing module, wherein the PHY layer processing module includes a PHY layer
  • the PHY layer demodulation module is used to demodulate the received data.
  • the PHY layer target cache maintenance module is used to maintain the remaining storage space of the target cache to assist the PHY layer scheduling module to determine whether the data processing process can be performed.
  • the PHY layer target buffer maintenance module may update the remaining storage space of the target buffer according to the instruction of scheduling data processing by the PHY layer scheduling module or the buffer release notification sent by the MAC layer entity.
  • the PHY layer processing module may include at least one PHY layer target buffer maintenance module, and each PHY layer target buffer maintenance module corresponds to one cell.
  • the PHY layer scheduling module is used to judge whether data processing can be performed according to the remaining storage space of the target buffer maintained by the PHY layer target buffer maintenance module and the data volume of the data to be decoded, and then flexibly schedule uplink data processing according to the remaining storage space of the target buffer. process.
  • the PHY layer processing module may include at least one PHY layer scheduling module, and each PHY layer scheduling module corresponds to one cell.
  • the PHY layer decoder module is used to decode the data stored in the target buffer.
  • the PHY layer decoder module can be implemented by using an encoder resource pool, and the PHY layer decoder module can perform encoding processing of at least one encoding rule.
  • the PHY layer decoder module can be low-density parity check. Code (Low Density Parity Check, LDPC)/Binary Convolutional Code (Binary Convolutional Code, BCC) decoder, the PHY layer decoder module can perform LDPC decoding on the data, and can also perform BCC decoding on the data.
  • the PHY layer decoder module can also be shared by multiple cells.
  • the PHY layer processing module includes at least one PHY layer decoder module, and each PHY layer decoder module is used for Decoding processing is performed on data corresponding to at least one cell.
  • the target buffer is used to store the data before and after the decoding process of the PHY layer entity.
  • the target buffer can be shared by multiple cells.
  • the PHY layer processing module includes at least one target Buffers, each target buffer is used to store uplink data of at least one cell. It should be noted that when designing the target cache, it is necessary to determine the maximum amount of data after encoding or decoding according to the preset encoding rules and decoding rules, and ensure that the cache space of the target cache can be used to store at least A maximum amount of data.
  • the upstream data processing module of the MAC layer is used to perform upstream data processing on the data obtained from the target cache, specifically, performing data splicing processing and format conversion processing on the data, wherein the format conversion processing can be descrambling processing, parsing processing, etc. .
  • the MAC layer uplink data processing module may be shared by multiple cells.
  • the MAC layer processing module may include at least one MAC layer uplink data processing module, and each MAC layer uplink data processing module corresponds to at least one cell.
  • the MAC layer distribution module is used to distribute the data processed by the MAC layer uplink data processing module to the wired side.
  • FIG. 11 provides a flowchart of a data processing method for AP uplink communication in a WLAN system according to an embodiment of the present application, and the method includes the following steps:
  • the PHY layer demodulation module performs demodulation processing on the received fourth data to obtain fifth data.
  • the PHY layer demodulation module sends fifth data to the PHY layer scheduling module.
  • the PHY layer scheduling module obtains the remaining storage space of the target cache maintained by the PHY layer target cache maintenance module.
  • the PHY layer scheduling module estimates the third data amount and the fourth data amount corresponding to the fifth data.
  • the PHY layer scheduling module determines the data amount of the fifth data as the third data amount.
  • the PHY layer scheduling module determines the data volume of the sixth data obtained by decoding the fifth data according to the PHY layer decoding rule, and uses the data volume of the sixth data as the second data volume corresponding to the fifth data.
  • the fifth data is not decoded, but the third data amount and the fourth data amount corresponding to the fifth data are calculated according to the data amount of the fifth data and the PHY layer decoding rule.
  • the PHY layer scheduling module determines that data processing can be performed on the fifth data according to the third data amount, the fourth data amount corresponding to the fifth data, and the remaining storage space of the target cache.
  • the PHY layer scheduling module determines that the remaining storage space of the target cache is greater than or equal to the storage space required for storing the first data amount and the second data amount, respectively, it is determined that data processing can be performed on the fifth data. Specifically, the PHY layer scheduling module determines that the remaining storage space of the target cache is greater than or equal to the storage space required to store the first data amount, indicating that the remaining space of the target cache can be used to store the fifth data, and the PHY layer processing module can store the fifth data. Data is decoded.
  • the PHY layer scheduling module determines that the remaining storage space of the target cache is greater than or equal to the storage space required for storing the second data amount, indicating that the remaining space of the target cache can be used to store the first stream data obtained after decoding the fifth data,
  • the PHY layer processing module may perform decoding processing on the fifth data, and put the sixth data obtained by the decoding processing into the target buffer.
  • the PHY layer scheduling module can judge whether the remaining storage space of the target cache is enough to store the fifth data and the sixth data, so as to start the uplink data processing flow when the remaining space of the target cache is enough to store the fifth data and the sixth data , so that data corresponding to different cells or users can flexibly occupy the target buffer, without having to reserve a large enough buffer space for each cell or user, saving overhead.
  • the PHY layer scheduling module determines configuration information corresponding to the fifth data.
  • the configuration information includes a third cache address and a fourth cache address corresponding to the fifth data
  • the third cache address is the address corresponding to the fifth data in the target cache
  • the fourth cache address is for decoding the fifth data.
  • the address corresponding to the sixth data obtained after processing in the target cache.
  • the PHY layer scheduling module determines configuration information corresponding to the fifth data according to the third data amount, the fourth data amount corresponding to the fifth data, and the remaining storage space of the target cache. Specifically, the PHY layer scheduling module determines the third buffer address according to the third data volume corresponding to the fifth data and the remaining storage space of the target buffer, and the PHY layer scheduling module determines the third buffer address according to the fourth data volume corresponding to the fifth data and the remaining storage space of the target buffer The space determines the fourth cache address.
  • the PHY layer scheduling module puts the fifth data into the target cache according to the third cache address.
  • the PHY layer decoder module obtains fifth data from the target buffer according to the third buffer address.
  • the PHY layer decoder module decodes the fifth data to obtain sixth data.
  • the PHY layer decoder module may perform LDPC/BCC decoding processing on the fifth data.
  • the PHY layer decoder module puts the sixth data into the target buffer according to the fourth buffer address.
  • the PHY layer scheduling module sends notification information to the MAC layer uplink data processing module, where the notification information includes configuration information corresponding to the fifth data.
  • the MAC layer uplink data processing module acquires sixth data from the target cache according to the fourth cache address.
  • the MAC layer uplink data processing module obtains the data identifier of the sixth data, determines the time sequence of the sixth data, and performs data splicing processing and format conversion processing on the sixth data according to the time sequence to obtain seventh data.
  • the MAC layer uplink data processing module after the MAC layer uplink data processing module performs data splicing processing on the sixth data, it performs descrambling processing and PSDU parsing processing on the data after the data splicing processing to obtain seventh data.
  • the MAC layer uplink data processing module sends the seventh data to the MAC layer distribution module.
  • the MAC layer distribution module distributes the seventh data to the wired side.
  • the MAC layer uplink data processing module sends a buffer release notification to the PHY layer target buffer maintenance module.
  • the PHY layer target cache maintenance module updates the remaining storage space of the target cache according to the storage space of the released target cache included in the cache release notification.
  • the embodiments of the present application also provide a computer program, which, when the computer program runs on a computer, causes the computer to execute the data processing method provided by the embodiment shown in FIG. 9 or FIG. 11 .
  • embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a computer, the computer executes the program shown in FIG. 9 or FIG. 11 .
  • the storage medium may be any available medium that the computer can access.
  • computer readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or be capable of carrying or storing instructions or data structures in the form of desired program code and any other medium that can be accessed by a computer.
  • an embodiment of the present application further provides a chip, which is used for reading a computer program stored in a memory to implement the data processing method provided by the embodiment shown in FIG. 9 or FIG. 11 .
  • an embodiment of the present application provides a chip system, where the chip system includes a processor for supporting a computer device to implement the functions of the data processing device in the embodiment shown in FIG. 9 or FIG. 11 .
  • the chip system further includes a memory for storing necessary programs and data of the computer device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including, but not limited to, disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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

Abstract

La présente invention concerne un appareil et un procédé de traitement de données. L'appareil de traitement de données comprend : un module de traitement de couche MAC et un module de traitement de couche PHY. Le module de traitement de couche MAC est utilisé pour recevoir des premières données, et estimer un premier volume de données et un deuxième volume de données qui correspondent aux premières données ; effectuer, lorsque l'espace de stockage restant d'un cache cible est supérieur ou égal à l'espace de stockage requis pour stocker le premier volume de données et le deuxième volume de données, un premier traitement de données sur les premières données pour obtenir des deuxièmes données ; et mettre en place les deuxièmes données dans le cache cible. Le module de traitement de couche PHY est utilisé pour acquérir les deuxièmes données à partir du cache cible, et effectuer un traitement de codage sur les deuxièmes données, de façon à obtenir des troisièmes données ; et effectuer un traitement de modulation sur les troisièmes données. Le module de traitement de couche MAC réalise uniquement un processus de traitement de données après avoir déterminé que le traitement de données peut être effectué sur les premières données, de sorte que le cache cible puisse être utilisé de manière flexible pour mettre en œuvre un traitement de données, sans réserver de capacité de mise en cache ou de traitement de données pour chaque utilisateur, ce qui réduit les surcharges de mise en cache.
PCT/CN2021/074559 2021-01-30 2021-01-30 Appareil et procédé de traitement de données WO2022160318A1 (fr)

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PCT/CN2021/074559 WO2022160318A1 (fr) 2021-01-30 2021-01-30 Appareil et procédé de traitement de données

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CN106685578A (zh) * 2015-11-06 2017-05-17 华为技术有限公司 Ppdu传输方法、装置、无线接入点及站点
CN109688179A (zh) * 2017-10-19 2019-04-26 华为技术有限公司 通信方法和通信装置
US20190230524A1 (en) * 2014-07-24 2019-07-25 Huawei Technologies Co., Ltd. System and Method for Coordinated Beamforming for Overlapping Basic Service Set in WLAN
CN111510953A (zh) * 2020-04-26 2020-08-07 Oppo广东移动通信有限公司 一种数据处理方法及终端、存储介质

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Publication number Priority date Publication date Assignee Title
US20190230524A1 (en) * 2014-07-24 2019-07-25 Huawei Technologies Co., Ltd. System and Method for Coordinated Beamforming for Overlapping Basic Service Set in WLAN
CN106685578A (zh) * 2015-11-06 2017-05-17 华为技术有限公司 Ppdu传输方法、装置、无线接入点及站点
CN109688179A (zh) * 2017-10-19 2019-04-26 华为技术有限公司 通信方法和通信装置
CN111510953A (zh) * 2020-04-26 2020-08-07 Oppo广东移动通信有限公司 一种数据处理方法及终端、存储介质

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