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WO2018137398A1 - 一种配置无线发送接收参数的方法、装置及系统 - Google Patents

一种配置无线发送接收参数的方法、装置及系统 Download PDF

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Publication number
WO2018137398A1
WO2018137398A1 PCT/CN2017/113493 CN2017113493W WO2018137398A1 WO 2018137398 A1 WO2018137398 A1 WO 2018137398A1 CN 2017113493 W CN2017113493 W CN 2017113493W WO 2018137398 A1 WO2018137398 A1 WO 2018137398A1
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WIPO (PCT)
Prior art keywords
radio frame
parameter
parameter set
module
receiving
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PCT/CN2017/113493
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English (en)
French (fr)
Inventor
位宁
吕开颖
孙波
张学林
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ZTE Corp
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ZTE Corp
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Priority to EP17894454.2A priority Critical patent/EP3592031A4/en
Publication of WO2018137398A1 publication Critical patent/WO2018137398A1/zh
Priority to US16/522,322 priority patent/US11233618B2/en
Anticipated expiration legal-status Critical
Priority to US17/581,050 priority patent/US12170630B2/en
Ceased legal-status Critical Current

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    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0452—Multi-user MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0205—Traffic management, e.g. flow control or congestion control at the air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/618—Details of network addresses
    • H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a method, apparatus, and system for configuring wireless transmit and receive parameters.
  • 802.11ax introduces scheduling-based uplink multi-user transmission.
  • the basic process can be summarized as follows: an access point (AP) station sends a scheduling information such as triggering a radio frame to complete resource allocation to a scheduled station after completing operations such as channel access.
  • AP access point
  • Each scheduled station performs uplink multi-user transmission by transmitting a Trigger-based PPDU according to the scheduling information in the triggered radio frame.
  • the AP station can obtain the signaling information required for parsing data from the preamble of the radio frame sent by the scheduled station, for example, the coding type used (binary convolutional code BCC or low-density parity) Check code LDPC), modulation and coding mode MCS, number of spatial streams, whether to perform beamforming, etc., and parse the load information of the radio frame according to the obtained information and the corresponding algorithm.
  • the coding type used binary convolutional code BCC or low-density parity
  • Check code LDPC low-density parity
  • MCS modulation and coding mode
  • number of spatial streams whether to perform beamforming, etc.
  • the preamble of the Trigger-based PPDU sent by the scheduled station does not carry the signaling information required by the AP station to parse the data. Therefore, this hinders the AP site from receiving normal Trigger-based PPDUs.
  • the embodiments of the present disclosure are directed to a method, an apparatus, and a system for configuring a wireless transmission and reception parameter, which solves the problem that a physical layer existing in a current receiving process cannot normally receive a trigger-based radio frame of a scheduled station. problem.
  • An embodiment of the present disclosure provides a method for configuring a wireless transmit and receive parameter, including:
  • the station Before the start of the transmission of the triggered radio frame, the station configures the sending module by using the first parameter set; the first radio frame carrying the second parameter set is sent by the sending module; the station uses the second parameter set to configure the receiving module, and then receives and uses the second parameter.
  • the receiving parameter or receiving signaling information includes a common parameter/signaling portion and a user parameter/signaling portion.
  • the common parameter/signaling part includes: bandwidth size, guard interval and long training sequence type, long training sequence type of MU-MIMO, number of efficient long training sequences, whether to use space time coding, whether or not There is an extra symbol part of the low density check code, a packet extension type, whether a fixed pilot is used;
  • the user parameter/signaling part includes: a user's associated ID number, resource unit allocation, coding type, modulation and coding mode, whether dual carrier modulation is used, spatial stream allocation, and received signal strength of the user on the scheduling device side. .
  • the scheduling device configures the second parameter module using the second parameter set or the third parameter module uses the third parameter Configuring the second parameter module; if the indication of transmitting the triggered radio frame is not received or the indication is the second state, the scheduling device does not use the second parameter set to configure the second parameter module or the The three parameter module does not use the third parameter set to configure the second parameter module.
  • the first state and the second state of the transmission scheduling radio frame are respectively used to identify whether to transmit a trigger radio frame, and are represented by one or more identical and/or different types of variables having different values. .
  • variables include: integer variables, floating point variables, character variables, logical variables, byte variables, text variables, object variables.
  • the first parameter set and/or the second parameter set and/or the third parameter set and/or the indication of the transmit trigger radio frame are inter-instructed by the scheduling device or Carrying a parameter variable in the interaction primitive; or the indication of the first parameter set and/or the second parameter set and/or the third parameter set and/or the transmit trigger radio frame by the scheduling Carrying by the device's interactive instructions or other parameter variables other than the interactive primitive.
  • the interactive instruction or the interaction primitive includes: starting to send a request primitive, a data request primitive, and sending an end request primitive.
  • the validity of the second parameter set is valid after being configured to the receiving module.
  • the validity of the second parameter set continues until after the station successfully receives the second radio frame or fails to receive the second radio frame;
  • the validity of the second parameter set does not exceed a predefined length of time, or a predefined number of received frames, or a predefined number of received bytes
  • the validity of the second parameter set or the third parameter set in the second parameter module of the scheduling device and the third parameter set in the third module does not exceed one time interval; and after the waiting time exceeds the above time interval, the The scheduling device uses zeroing or emptying or otherwise invalidating the second parameter set or the third parameter set in the second parameter module of the scheduling device.
  • the length of the time interval is greater than or equal to a length of time before the scheduling device ends transmitting the triggered radio frame and before receiving the scheduled radio frame of the scheduled device.
  • the first parameter module and the second parameter module of the scheduling device and the existence form of the third parameter module include a physical entity and a logical entity.
  • An embodiment of the present disclosure further provides an apparatus for configuring wireless transmission and reception parameters, where the apparatus includes:
  • a configuration unit configured to directly or indirectly configure a sending module of the device by using the first parameter set; and directly or indirectly configure a receiving module of the device by using the second parameter set;
  • the sending module sends the first wireless frame by using the first parameter set, And carrying a second parameter set in the first radio frame; the receiving module receiving, by using the second parameter set, the second radio frame sent by using the second parameter set.
  • the wireless transceiver further includes a proxy module.
  • the proxy module receives a first set of parameters from the configuration module and configures the transmit module using the first set of parameters; receives a first set of parameters from the configuration module, and configures the receive module using the second set of parameters.
  • the embodiment of the present disclosure further provides a system for configuring wireless transmission and reception parameters, the system includes: a scheduling device and a scheduled device, wherein the scheduling device includes the foregoing apparatus for configuring wireless transmission and reception parameters.
  • the method, device and system for configuring a wireless transmission and reception parameter are provided by the embodiment of the present disclosure.
  • the scheduling device configures the first parameter module of the scheduling device by using the first parameter set;
  • the second parameter module of the scheduling device is configured using the second parameter set; or, before receiving the trigger-based radio frame of the scheduled device, the scheduling device uses the second parameter set configuration different from the first A parameter module and a third parameter module of the second parameter module; the third parameter module configures the second parameter module using the third parameter set.
  • FIG. 1 exemplarily shows a primitive exchange between a PHY layer and a MAC layer in the process of transmitting a radio frame in Embodiment 1;
  • FIG. 2 exemplarily shows an operation flowchart of a PHY layer configuration module in Embodiment 1;
  • FIG. 3 exemplarily shows an operation flowchart of a PHY layer configuration module in Embodiment 2;
  • FIG. 4 exemplarily shows a primitive exchange between the PHY layer and the MAC layer in the process of transmitting a trigger radio frame in Embodiment 3.
  • a method for configuring wireless transmission and reception parameters is provided by an embodiment of the present disclosure.
  • the station before the start of the sending of the first radio frame, the station configures the sending module directly or indirectly using the first parameter set; the sending module sends the first radio frame, where the first radio frame carries the second parameter set; The station configures the receiving module directly or indirectly using the second parameter set; the receiving module uses the second parameter set to receive the second wireless frame transmitted using the second parameter set or a partial parameter of the second parameter set.
  • the triggering radio frame includes the scheduling information of the scheduling device to the scheduled device, and after receiving the triggering radio frame, the scheduled device sends the trigger-based radio frame to the scheduling device according to the scheduling information carried in the triggering radio frame.
  • the first parameter module provides transmission parameter information for the scheduling device to send a radio frame; the second parameter module is a scheduling device.
  • the third parameter module storing the second parameter set and forwarding the stored second parameter set to the second parameter module;
  • the first parameter set includes the sending parameter or the sending signaling information required by the scheduling device to send the radio frame
  • the second parameter set includes a receiving parameter or a receiving signaling information required by the scheduling device to receive the wireless frame; and the third parameter set includes the receiving parameter or the receiving signaling information required by the second parameter centralized scheduling device to receive the wireless frame.
  • the receiving parameter (or receiving signaling) information includes a common parameter (signaling) part and a user parameter (signaling) part.
  • the common parameter (signaling) part includes: bandwidth size, guard interval and long training sequence type, MU-MIMO long training sequence type, efficient number of long training sequences, whether space-time coding is used, and whether there is low-density calibration.
  • the additional symbol part of the code the packet extension type, whether a fixed pilot is used;
  • the user parameter (signaling) part includes: the user's associated ID number, resource unit allocation, encoding type, modulation and coding mode, whether to use dual carrier modulation, spatial stream allocation, and the received signal strength of the user on the scheduling device side.
  • the scheduling device configures the second parameter module by using the second parameter set or the third parameter module uses the third parameter Configuring the second parameter module; if the indication of transmitting the triggered radio frame is not received or the indication is the second state, the scheduling device does not use the second parameter set to configure the second parameter module or the The three parameter module does not use the third parameter set to configure the second parameter module.
  • the first state and the second state of the transmission scheduling radio frame are respectively used to identify whether to send a trigger radio frame, and are represented by one or more variables of the same and/or different types with different values; different types of Variables include: integer variables, floating point variables, character variables, logical variables, byte variables, text variables, object variables.
  • the first parameter set and/or the second parameter set and/or the third parameter set and/or the indication of the transmit trigger radio frame are an interaction instruction by the scheduling device ( Or a parameter variable carried in the interaction primitive; or the indication of the first parameter set and/or the second parameter set and/or the third parameter set and/or the transmit trigger radio frame Carrying other parameter variables than the interactive instructions (or interaction primitives) of the scheduling device.
  • the interaction instruction or the interaction primitive includes: starting to send a request primitive, a data request primitive, and sending an end request primitive.
  • the validity of the second parameter set or the third parameter set in the second parameter module of the scheduling device and the third parameter set in the third parameter module of the scheduling device continues to the scheduling Before the device performs another reconfiguration operation;
  • the validity of the second parameter set or the third parameter set in the second parameter module of the scheduling device and the third parameter set in the third module does not exceed one time interval; and after the waiting time exceeds the time interval, The scheduling device uses zeroing or emptying or otherwise invalidating the second parameter set or the third parameter set in the second parameter module of the scheduling device.
  • the length of the time interval is greater than or equal to a length of time before the scheduling device ends transmitting the triggered radio frame and before receiving the scheduled radio frame of the scheduled device.
  • the first parameter module and the second parameter module of the scheduling device and the existence form of the third parameter module include a physical entity and a logical entity.
  • An apparatus for configuring a wireless transmission and reception parameter is provided by an embodiment of the present disclosure, where the apparatus includes:
  • a first configuration unit configured to configure a first parameter module of the scheduling device by using the first parameter set before starting transmission of the triggered wireless frame
  • a second configuration unit configured to configure a second parameter module of the scheduling device using the second parameter set before receiving the trigger-based radio frame of the scheduled device; or set to trigger-based wireless upon receiving the scheduled device Before the frame, a third parameter module different from the first parameter module and the second parameter module is configured using the second parameter set; the third parameter module configures the second parameter module using the third parameter set.
  • the triggering radio frame includes scheduling information of the scheduling device to the scheduled device, and after receiving the triggering radio frame, the scheduled device sends a trigger-based radio frame to the scheduling device according to the scheduling information carried by the triggering radio frame; the first parameter module Sending parameter information for transmitting the radio frame to the scheduling device; the second parameter module provides receiving parameter information for the scheduling device to receive the radio frame; the third parameter module stores the second parameter set and forwards the stored second parameter set to the second parameter module;
  • the parameter set includes a sending parameter or a sending signaling information required by the scheduling device to send the wireless frame; the second parameter set includes a receiving parameter or a receiving signaling information required by the scheduling device to receive the wireless frame; and the third parameter set includes the second parameter centralized scheduling device.
  • a system for configuring wireless transmission and reception parameters includes: a scheduling device and a scheduled device, where the scheduling device includes the foregoing apparatus for configuring wireless transmission and reception parameters.
  • the 802.11ax-enabled scheduling device sends a Trigger radio frame to the scheduled station before scheduling multiple 802.11ax scheduled stations to send Trigger-based PPDUs.
  • the triggering radio frame includes the modulation coding mode MCS, the resource allocation information (including the size and location of the available resources of each user), the number of spatial streams, and the like, and the transmission parameter information required by the scheduled station to transmit the Trigger-based PPDU.
  • the above transmission parameter information will be carried by a common information field (Common info field) of the triggered radio frame and each User info field.
  • the media access control (MAC) layer of the scheduling device passes through the original
  • the PHY layer transmits the parameter information serving the radio frame transmission; except when the acknowledgment is not required, after receiving the primitive of the MAC layer and performing the corresponding configuration operation, the PHY layer sends the original to the MAC layer.
  • the language confirms the received MAC layer primitives. After receiving the primitive for confirming the operation, the MAC layer can start a new round of interaction until the end of the transmission process. It should be noted that one or more complete or incomplete other primitive interaction processes may exist before the corresponding confirmation operation primitive of the PHY layer is received.
  • the transmission of the triggered radio frame can be summarized as follows: the MAC layer of the scheduling device sends a message to the PHY layer before the start of the transmission of the trigger radio frame (accurately, after the MAC layer transmission process is initiated)
  • the PHY-TX START-request primitive informs the PHY layer to send the transmission parameter information used when the radio frame is triggered, such as the modulation and coding mode MCS, the coding scheme, the number of spatial streams, the number of users, and the like.
  • the transmission parameter information of the above-mentioned transmission trigger radio frame will be carried in the TXVECTOR parameter in the PHY-TX START-request primitive.
  • the TXVECTOR when transmitting the trigger radio frame, carries the transmission parameter information of the trigger radio frame, and carries the transmission parameter information of the Trigger-based PPDU sent by the scheduled station (ie, part or all of the triggers).
  • the sending parameters used by the Trigger-based PPDU that triggers the triggering of the radio frame include the bandwidth, the MCS, and the like.
  • the MAC layer also needs to indicate whether the radio frame sent by the PHY layer this time is a trigger radio frame.
  • the main function of sending the trigger radio frame indication is to notify the PHY layer that the TXVECTOR parameter in the PHY-TX START-request primitive carries the receiving parameter information of the Trigger-based PPDU sent by the scheduled station, including bandwidth, MCS, and the like.
  • the transmit trigger radio frame indication can be carried by TXVECTOR or other parameters. If the transmission trigger radio frame indication is 1, it indicates that the radio frame sent by the PHY layer is the trigger radio frame; if the transmission trigger radio frame indication is 0, it indicates that the radio frame transmitted by the PHY layer is not the trigger radio frame.
  • the PHY layer configuration module parses the TXVECTOR to obtain the required transmission parameter information (as shown in Figure 2). If the sending trigger radio frame indication is 1, the configuration module of the PHY layer configures the sending module of the PHY layer by using the sending parameter information of the triggering radio frame, and the sending module of the PHY layer sends the triggering radio frame by using the sending parameter information of the triggering radio frame (including adding the preamble).
  • the PHY layer configuration module uses the transmission parameter information of the Trigger-based PPDU sent by the scheduled station to configure the receiving module of the PHY layer, and the receiving module of the PHY layer uses the Trigger-
  • the transmission parameter information of the PPDU receives the Trigger-based PPDU (including the operation of demodulating and decoding the Trigger-based PPDU) sent by the scheduled station.
  • the configuration module of the PHY layer configures the sending module of the PHY layer by using the radio frame transmission parameter information, and the transmitting module of the PHY layer transmits the radio frame by using the sending parameter information of the radio frame; the receiving module of the PHY layer is not used. Perform configuration operations.
  • TXVECTOR in the PHY-TXSTART-request primitive
  • TRIGTXVECTOR the transmit parameter information of the Trigger-based PPDU sent by the scheduled station.
  • the transmit trigger radio frame indication is used to identify whether to transmit the trigger radio frame and is carried in the TXVECTOR, independent of the TXVECTOR display indication; or implicitly indicated by carrying the TRIGTXVECTOR parameter.
  • the latter indicates whether the method of transmitting the triggered radio frame is: when the TRIGTXVETOR variable is carried, it indicates that the currently transmitted radio frame is triggered; when the TRIGTXVECTOR variable is not carried, it indicates that the currently transmitted radio frame is not triggered. If the transmit trigger radio frame indication is 1 (or the TRIGTXVETOR variable is carried in the PHY-TX START-request primitive), the PHY layer configuration module receives the PHY-TXSTART-request original. After the language, (as shown in FIG.
  • the TXVECTOR and the TRIGTXVECTOR are simultaneously parsed, and the transmitting parameter and the receiving module of the PHY layer are configured by using the sending parameter information of the triggered radio frame and the sending parameter information of the Trigger-based PPDU of the scheduled station;
  • the sending module and the receiving module respectively use the sending parameter information of the triggering radio frame and the sending parameter information of the scheduled station to send the Trigger-based PPDU to send the triggering radio frame and receive the Trigger-based PPDU sent by the scheduled station.
  • the sending parameter information of the Trigger-based PPDU sent by the scheduled station in the receiving module is invalid.
  • the receiving module subsequently needs to perform radio frame reception according to the information included in the received radio frame header; or use the information to perform radio frame reception after the new receiving module configuration information is valid.
  • the configuration module of the PHY layer configures the transmit module of the PHY layer using the radio frame transmission parameter information, and the transmit module of the PHY layer uses The transmission parameter information transmission of the radio frame triggers the radio frame; the configuration operation is not performed on the receiving module of the PHY layer.
  • the scheduling device (or the MAC layer of the scheduling device) sends a request primitive (eg, PHY-TRIGGER-request) of the Trigger-based PPDU to the PHY layer before receiving the scheduled station based on the scheduled radio frame.
  • the variable in the primitive (for example, TRIGTXVECTOR) carries the transmission parameter information of the Trigger-based PPDU sent by the scheduled station.
  • the PHY layer configuration module After parsing the information and completing the configuration of the PHY layer receiving module, the PHY layer configuration module sends a confirmation primitive (eg, PHY-TRIGGER-confirm) to the MAC layer to notify the MAC before receiving the scheduled station based on the scheduled radio frame.
  • the receiving module of the layer PHY layer has been configured (to ensure that the acknowledgment primitive is received by the MAC layer before receiving the scheduling-based radio frame, the request primitive for transmitting the Trigger-based PPDU should be sent as early as possible).
  • Figure 4 shows a viable interaction example (the point in time when the request primitive and the confirmation primitive are sent is only a reference, and other reasonable choices are also included in the scope of this example).
  • the acknowledgment primitive (PHY-TRIGGER-confirm) sent by the PHY layer to the MAC layer may not exist.
  • the PHY layer is also required to complete the configuration of the receiving module before receiving the scheduled station based on the scheduled radio frame.
  • the scheduling sets the independent parameter module A.
  • the MAC layer carries the transmission parameter information of the Trigger-based PPDU sent by the scheduled station through a primitive or other manner, and uses the information to configure the parameter module A.
  • the present embodiment describes the configuration of the parameter module A by using the transmission parameter information of the Trigger-based PPDU and the subsequent operation of configuring the receiving module of the PHY layer by using the parameter module A.
  • the transmission parameter configuration parameter module A of the trigger radio frame and how to use the parameter module A to configure the operation of the PHY layer transmission module and how to use the transmission parameter configuration of the trigger radio frame and the Trigger-based PPDU if necessary Parameter module A, how the parameter module A configures the receiving module and the transmitting module of the PHY layer (for example, using the triggering radio frame first) Transmitting the parameter configuration parameter module A, after the parameter module A finishes configuring the sending module of the PHY layer, and then using the transmission parameter configuration parameter module A of the Trigger-based PPDU, and then the parameter module A configuring the receiving module of the PHY layer; or, The operation of the parameter module A after the parameter parameter A is configured, the parameter module A sequentially or simultaneously configures the receiving module and the transmitting module of the PHY layer,
  • the parameter module A The stored scheduling parameter of the Trigger-based PPDU is used to initialize or configure the receiving module of the PHY layer, and the receiving module of the PHY layer uses the sending parameter information of the Trigger-based PPDU sent by the scheduled station to receive the Trigger-based of the scheduled station. PPDU. If the transmit trigger frame indication is 0, parameter module A does not perform initialization or configure the operation of the receive module of the PHY layer.
  • the receiving module of the PHY layer performs the operation of reading the sending parameter information of the Trigger-based PPDU by the scheduled station in the module A, and the receiving module of the PHY layer sends the Trigger using the scheduled station.
  • the transmitting parameter information of the PPDU receives the Trigger-based PPDU of the scheduled station; if the sending trigger radio frame indication is 0, the receiving module of the PHY layer does not perform the sending parameter information of the Trigger-based PPDU sent by the scheduled station in the reading module A. operating.
  • the PHY layer is required to complete the configuration operation of the receiving module before receiving the scheduled station based on the scheduled radio frame.
  • the basic assumption is similar to that of the first example.
  • the scheduling device (which may be an AP or a STA) or the MAC layer of the scheduling device sends a request primitive of the Trigger-based PPDU to the PHY layer of the scheduling device (for example, PHY-TRIGGER-request).
  • the variable in the primitive (for example, TRIGTXVECTOR) carries receiving parameter information for receiving a Trigger-based PPDU by multiple scheduled stations. In this case, receiving the parameter information of the Trigger-based PPDU sent by the multiple scheduled stations is the same as the corresponding sending parameter of the Trigger-based PPDU sent by the multiple scheduled stations, including the bandwidth and resources of each scheduled station. Location, MCS, etc.
  • a confirmation primitive (eg, PHY-TRIGGER-confirm) to the MAC layer to notify the receiving module of the MAC layer PHY layer that the configuration has been completed (to ensure the confirmation)
  • the primitive is received by the MAC layer before receiving the scheduled radio frame, and the request primitive for transmitting the Trigger-based PPDU should be sent as early as possible).
  • the acknowledgment primitive (PHY-TRIGGER-confirm) sent by the PHY layer to the MAC layer may not exist.
  • the PHY layer is also required to complete the configuration of the receiving module before receiving the scheduled station based on the scheduled radio frame.
  • embodiments of the present disclosure can be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware aspects. Moreover, the present disclosure 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 and optical storage, etc.) including computer usable program code.

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Abstract

本公开实施例公开了一种配置无线发送接收参数的方法，所述方法包括：站点使用第一参数集配置发送模块并发送第一无线帧；在第一无线帧中携带第二参数集；站点使用第二参数集配置接收模块后接收由上述第一无线帧触发的第二无线帧。本公开实施例还公开了一种配置无线发送接收参数的装置和系统。 (图1)

Description

一种配置无线发送接收参数的方法、装置及系统 技术领域
本公开涉及通信技术领域，尤其涉及一种配置无线发送接收参数的方法、装置及系统。
背景技术
在密集场景中，传统WLAN协议中的上行单用户发送机制极大地限制了网络的整体传输效率。为了解决上行单用户传输带来的网络整体传输效率偏低的问题，802.11ax引入了基于调度的上行多用户传输。其基本过程可概括为：接入点(Access Point,AP)站点在完成信道接入等操作后，向被调度站点发送触发无线帧完成资源分配等调度信息的分发。各被调度站点根据触发无线帧中的调度信息发送基于触发的无线帧(Trigger-based PPDU)完成上行多用户传输。进行传统的上行单用户传输时，AP站点能够从被调度站点发送的无线帧的前导中获取到解析数据所需要的信令信息,例如采用的编码类型(二进制卷积码BCC或是低密度奇偶校验码LDPC)，调制编码方式MCS，空间流数目，是否做波束赋形等，并根据获取的上述信息和相应的算法解析无线帧的负载信息。
发明内容
在802.11ax的基于调度的上行多用户传输过程中，被调度站点发送的Trigger-based PPDU的前导中不携带AP站点解析数据所需要的信令信息。因此，这就阻碍了AP站点对Trigger-based PPDU的正常接收。
为解决上述技术问题，本公开实施例期望提供一种配置无线发送接收参数的方法、装置及系统，解决了现有接收流程中存在的物理层无法正常接收被调度站点的基于触发的无线帧的问题。
本公开的技术方案是这样实现的：
本公开实施例提供了一种配置无线发送接收参数的方法，包括：
在触发无线帧的发送开始之前，站点使用第一参数集配置发送模块；利用发送模块发送携带第二参数集的第一无线帧；站点使用第二参数集配置接收模块后接收使用上述第二参数集或者上述第二参数集的部分参数发送的第二无线帧。
根据本公开实施例，所述接收参数或接收信令信息包括共同参数/信令部分和用户参数/信令部分。
根据本公开实施例，共同参数/信令部分包括：带宽大小、保护间隔和长训练序列类型、MU-MIMO的长训练序列类型，高效的长训练序列的数目，是否使用空时编码、是否 存在低密度校验码的额外符号部分，包扩展类型，是否采用固定导频；
根据本公开实施例，用户参数/信令部分包括：用户的关联ID号、资源单元分配，编码类型，调制编码方式、是否使用双载波调制，空间流分配，用户在调度设备侧的接收信号强度。
根据本公开实施例，如果发送触发无线帧的指示为第一状态，那么所述调度设备使用所述第二参数集配置所述第二参数模块或者所述第三参数模块使用所述第三参数集配置所述第二参数模块；如果未收到发送触发无线帧的指示或指示为第二状态，那么所述调度设备不使用所述第二参数集配置所述第二参数模块或者所述第三参数模块不使用所述第三参数集配置所述第二参数模块。
根据本公开实施例，所述发送调度无线帧的第一状态和第二状态分别被用于标识是否发送触发无线帧，并由取值不同的一个或多个相同和/或不同类型的变量表示。
其中，不同类型的变量包括：整型变量，浮点型变量，字符型变量，逻辑型变量，字节型变量，文本型变量，对象型变量。
根据本公开实施例，所述第一参数集和/或所述第二参数集和/或所述第三参数集和/或所述发送触发无线帧的指示由所述调度设备的交互指令或交互原语中的参数变量携带；或者，所述第一参数集和/或所述第二参数集和/或所述第三参数集和/或所述发送触发无线帧的指示由所述调度设备的交互指令或交互原语之外的其它参数变量携带。
根据本公开实施例，所述交互指令或交互原语包括：开始发送请求原语，数据请求原语，发送结束请求原语。
根据本公开实施例，所述第二参数集的有效性在配置到接收模块后生效。
根据本公开实施例，所述第二参数集的有效性持续到所述站点成功接收到所述第二无线帧后或者接收上述第二无线帧失败后；
或者，所述第二参数集的有效性不超过预定义的时间长度，或者预定义的接收帧数，或者预定义的接收字节数
或者，所述调度设备的第二参数模块中的第二参数集或第三参数集和第三模块中第三参数集的有效性不超过一个时间间隔；且等待时间超过上述时间间隔后，所述调度设备使用置零或清空或其它方式无效化所述调度设备的第二参数模块中的第二参数集或第三参数集。
其中，所述时间间隔的长度大于或等于所述调度设备结束发送所述触发无线帧之后且收到所述被调度设备的基于调度的无线帧之前的时间长度。
根据本公开实施例，所述调度设备的第一参数模块和第二参数模块以及第三参数模块的存在形式包括物理实体和逻辑实体。
本公开实施例还提供了一种配置无线发送接收参数的装置，所述装置包括：
配置单元，设置为在使用第一参数集直接或者间接配置设备的发送模块；并且使用第二参数集直接或者间接配置设备的接收模块；发送模块使用第一参数集发送第一无线帧， 并且在第一无线帧中携带第二参数集；接收模块使用第二参数集接收使用第二参数集发送的第二无线帧。
根据本公开实施例，该无线收发装置还包括一个代理模块。该代理模块接收来自配置模块的第一参数集，并使用第一参数集配置发送模块；接收来自配置模块的第一参数集，并使用第二参数集配置接收模块。
本公开实施例还提供了一种配置无线发送接收参数的系统，所述系统包括：调度设备和被调度设备，其中，所述调度设备包括上述配置无线发送接收参数的装置。
本公开实施例提供的一种配置无线发送接收参数的方法、装置及系统，在触发无线帧的发送开始之前，调度设备使用第一参数集配置调度设备的第一参数模块；在接收到被调度设备的基于触发的无线帧之前，使用第二参数集配置调度设备的第二参数模块；或者，在接收到被调度设备的基于触发的无线帧之前，调度设备使用第二参数集配置不同于第一参数模块和第二接参数模块的第三参数模块；第三参数模块使用第三参数集配置第二参数模块。从而，克服了现有接收流程中存在的物理层无法正常接收被调度站点的基于触发的无线帧的问题。
附图说明
通过参照附图详细描述其示例性实施例，本公开的上述和其它特征及优点将变得更加明显。
图1示例性示出实施例一在发送无线帧的过程中PHY层和MAC层之间的原语交换；
图2示例性示出实施例一中PHY层配置模块的操作流程图；
图3示例性示出实施例二中PHY层配置模块的操作流程图；
图4示例性示出实施例三在发送触发无线帧过程中PHY层和MAC层之间的原语交换。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述。
本公开实施例提供的一种配置无线发送接收参数的方法。
在本公开的一个实施例中在第一无线帧的发送开始之前，站点使用第一参数集直接或者间接配置发送模块；发送模块发送第一无线帧，其中第一无线帧携带第二参数集；站点使用第二参数集直接或者间接配置接收模块；接收模块使用第二参数集接收使用第二参数集或者第二参数集的部分参数进行发送的第二无线帧。
本公开实施例中，触发无线帧包括调度设备对被调度设备的调度信息，且被调度设备在接收到触发无线帧后，根据触发无线帧携带的调度信息向调度设备发送基于触发的无线帧；第一参数模块为调度设备发送无线帧提供发送参数信息；第二参数模块为调度设备接 收无线帧提供接收参数信息；第三参数模块存储第二参数集并向第二参数模块转发存储的第二参数集；第一参数集包括调度设备发送无线帧需要的发送参数或发送信令信息；第二参数集包括调度设备接收无线帧需要的接收参数或接收信令信息；第三参数集包括第二参数集中调度设备接收无线帧需要的接收参数或接收信令信息。
本公开实施例中，所述接收参数(或接收信令)信息包括共同参数(信令)部分和用户参数(信令)部分。
其中，共同参数(信令)部分包括：带宽大小、保护间隔和长训练序列类型、MU-MIMO的长训练序列类型，高效的长训练序列的数目，是否使用空时编码、是否存在低密度校验码的额外符号部分，包扩展类型，是否采用固定导频；
用户参数(信令)部分包括：用户的关联ID号、资源单元分配，编码类型，调制编码方式、是否使用双载波调制，空间流分配，用户在调度设备侧的接收信号强度。
本公开实施例中，如果发送触发无线帧的指示为第一状态，那么所述调度设备使用所述第二参数集配置所述第二参数模块或者所述第三参数模块使用所述第三参数集配置所述第二参数模块；如果未收到发送触发无线帧的指示或指示为第二状态，那么所述调度设备不使用所述第二参数集配置所述第二参数模块或者所述第三参数模块不使用所述第三参数集配置所述第二参数模块。
其中，所述发送调度无线帧的第一状态和第二状态分别被用于标识是否发送触发无线帧，并由取值不同的一个或多个相同和/或不同类型的变量表示；不同类型的变量包括：整型变量，浮点型变量，字符型变量，逻辑型变量，字节型变量，文本型变量，对象型变量。
本公开实施例中，所述第一参数集和/或所述第二参数集和/或所述第三参数集和/或所述发送触发无线帧的指示由所述调度设备的交互指令(或交互原语)中的参数变量携带；或者，所述第一参数集和/或所述第二参数集和/或所述第三参数集和/或所述发送触发无线帧的指示由所述调度设备的交互指令(或交互原语)之外的其它参数变量携带。
其中，所述交互指令或交互原语包括：开始发送请求原语，数据请求原语，发送结束请求原语。
本公开实施例中，所述调度设备的第二参数模块中的第二参数集或第三参数集和所述调度设备的第三参数模块中的第三参数集的有效性持续到所述调度设备执行再一次重新配置操作之前；
或者，所述调度设备的第二参数模块中的第二参数集或第三参数集和第三模块中第三参数集的有效性不超过一个时间间隔；且等待时间超过所述时间间隔后，所述调度设备使用置零或清空或其它方式无效化所述调度设备的第二参数模块中的第二参数集或第三参数集。
其中，所述时间间隔的长度大于或等于所述调度设备结束发送所述触发无线帧之后且收到所述被调度设备的基于调度的无线帧之前的时间长度。
本公开实施例中，所述调度设备的第一参数模块和第二参数模块以及第三参数模块的存在形式包括物理实体和逻辑实体。
本公开实施例提供的一种配置无线发送接收参数的装置，所述装置包括：
第一配置单元，设置为在触发无线帧的发送开始之前，使用第一参数集配置调度设备的第一参数模块；
第二配置单元，设置为在接收到被调度设备的基于触发的无线帧之前，使用第二参数集配置调度设备的第二参数模块；或者，设置为在接收到被调度设备的基于触发的无线帧之前，使用第二参数集配置不同于第一参数模块和第二接参数模块的第三参数模块；第三参数模块使用第三参数集配置第二参数模块。
其中，触发无线帧包括调度设备对被调度设备的调度信息，且被调度设备在接收到触发无线帧后，根据触发无线帧携带的调度信息向调度设备发送基于触发的无线帧；第一参数模块为调度设备发送无线帧提供发送参数信息；第二参数模块为调度设备接收无线帧提供接收参数信息；第三参数模块存储第二参数集并向第二参数模块转发存储的第二参数集；第一参数集包括调度设备发送无线帧需要的发送参数或发送信令信息；第二参数集包括调度设备接收无线帧需要的接收参数或接收信令信息；第三参数集包括第二参数集中调度设备接收无线帧需要的接收参数或接收信令信息。
本公开实施例提供的一种配置无线发送接收参数的系统，所述系统包括：调度设备和被调度设备，其中，所述调度设备包括上述配置无线发送接收参数的装置。
下面结合具体实施场景对本公开实施例的配置无线发送接收参数的方法做详细描述。
实施例一
在一个基本服务集(Basic Service Set,BSS)内,支持802.11ax的调度设备在调度多个支持802.11ax被调度站点发送Trigger-based PPDU之前，向被调度站点发送触发(Trigger)无线帧。触发无线帧包括被调度站点的发送Trigger-based PPDU时需要的调制编码方式MCS、资源分配信息(包括各用户的可用资源的大小和位置)、空间流数目等发送参数信息。上述发送参数信息将由触发无线帧的普通信息字段(Common info field)和各用户信息字段(User info field)携带。
在无线帧的发送过程中(包括在媒体接入控制层的发送过程启动之后且PHY层未开始发送无线帧之前的这一段准备时间)，调度设备的媒体接入控制(MAC)层会通过原语向物理(PHY)层传递服务于无线帧发送的参数信息；除不需要确认的情况外，在收到MAC层的原语并执行完成相应的配置操作后，PHY层会向MAC层发送原语对收到的MAC层原语进行确认操作。在收到用于确认操作的原语后，MAC层即可开始新的一轮交互过程直至发送过程结束。需要说明的是：在未收到PHY层相应的确认操作原语之前，也可能存在一个或多个完整或不完整的其它原语交互过程。无线帧的发送过程中涉及到的(部分)原语交互可参考图1。触发无线帧的发送可概括如下：调度设备的MAC层在触发无线帧的发送开始之前(准确地说，应该是在MAC层发送过程启动之后)，向PHY层发送物 理层发送开始请求(PHY-TXSTART-request)原语告知PHY层发送触发无线帧时所使用的发送参数信息，例如调制编码方式MCS，编码方案，空间流数目、用户数目等。上述发送触发无线帧的发送参数信息将在PHY-TXSTART-request原语中的TXVECTOR参数中携带。不同于其它类型的无线帧的发送，在发送触发无线帧时，TXVECTOR除携带触发无线帧的发送参数信息外，同时携带被调度站点发送Trigger-based PPDU的发送参数信息(即，部分或所有触发无线帧包括的调度信息)。其中，触发无线帧中携带其触发的Trigger-based PPDU所使用的发送参数，包括带宽、MCS等。
另外，MAC层还需要指示PHY层本次发送的无线帧是否为触发无线帧。发送触发无线帧指示的主要作用是通知PHY层PHY-TXSTART-request原语中的TXVECTOR参数携带有接收被调度站点发送的Trigger-based PPDU的接收参数信息，包括带宽，MCS等。发送触发无线帧指示可以被TXVECTOR或者其它参数所携带。如果发送触发无线帧指示为1，则说明PHY层本次发送的无线帧为触发无线帧；如果发送触发无线帧指示为0，则说明PHY层本次发送的无线帧不是触发无线帧。
PHY层的配置模块在收到PHY-TXSTART-request原语后，解析TXVECTOR获得需要的发送参数信息(如图2所示)。如果发送触发无线帧指示为1，PHY层的配置模块使用触发无线帧的发送参数信息配置PHY层的发送模块，PHY层的发送模块使用触发无线帧的发送参数信息发送触发无线帧(包括添加前导，对来自MAC层的待传输数据进行编码、调制等操作)；PHY层的配置模块使用被调度站点发送Trigger-based PPDU的发送参数信息配置PHY层的接收模块，PHY层的接收模块使用Trigger-based PPDU的发送参数信息接收被调度站点发送的Trigger-based PPDU(包括解调、译码Trigger-based PPDU等操作)。
需要注意的是，上述操作在调度站点接收到被调度站点发送的Trigger-based PPDU之前完成。
如果发送触发无线帧的指示为0，PHY层的配置模块使用无线帧发送参数信息配置PHY层的发送模块，PHY层的发送模块使用无线帧的发送参数信息发送无线帧；不对PHY层的接收模块执行配置操作。
实施例二
基本假设和配置过程与实例一类似，不同点在于：PHY-TXSTART-request原语中不同于TXVECTOR的变量(例如，TRIGTXVECTOR)被用于携带被调度站点发送Trigger-based PPDU的发送参数信息。发送触发无线帧指示用于标识是否发送触发无线帧且在TXVECTOR中携带，独立于TXVECTOR显示指示；或者，通过携带TRIGTXVECTOR参数来隐式指示。其中，后者指示是否发送触发无线帧的方式为：当携带TRIGTXVETOR变量时，表示当前发送的是触发无线帧；当不携带TRIGTXVECTOR变量时，表示当前发送的不是触发无线帧。如果发送触发无线帧指示为1(或者是PHY-TXSTART-request原语中携带TRIGTXVETOR变量)，PHY层的配置模块在收到PHY-TXSTART-request原 语后，(如图3所示)同时解析TXVECTOR和TRIGTXVECTOR，分别使用触发无线帧的发送参数信息和被调度站点发送Trigger-based PPDU的发送参数信息配置PHY层的发送模块和接收模块；PHY层的发送模块和接收模块分别使用触发无线帧的发送参数信息和调度被调度站点发送Trigger-based PPDU的发送参数信息发送触发无线帧和接收被调度站点发送的Trigger-based PPDU。
调度站点成功接收到被调度站点发送的Trigger-based PPDU后，或者接收被调度站点发送的Trigger-based PPDU失败后，上述配置于接收模块的被调度站点发送Trigger-based PPDU的发送参数信息失效。接收模块后续需要根据接收到的无线帧帧头所包含的信息进行无线帧接收；或者有新的接收模块配置信息生效后使用该信息进行无线帧接收。
如果发送触发无线帧指示为为0(或者是PHY-TXSTART-request原语中未携带TRIGTXVETOR变量)，PHY层的配置模块使用无线帧发送参数信息配置PHY层的发送模块，PHY层的发送模块使用无线帧的发送参数信息发送触发无线帧；不对PHY层的接收模块执行配置操作。
实施例三
基本假设与实例一类似。调度设备(或者调度设备的MAC层)在接收到被调度站点基于调度的无线帧之前，向PHY层发送Trigger-based PPDU的请求原语(例如，PHY-TRIGGER-request)。其中，上述原语中的变量(例如，TRIGTXVECTOR)携带被调度站点发送基于Trigger-based PPDU的发送参数信息。PHY层的配置模块在解析信息且完成对PHY层接收模块的配置后，在收到被调度站点基于调度的无线帧之前，向MAC层发送确认原语(例如，PHY-TRIGGER-confirm)通知MAC层PHY层的接收模块已经完成配置(为了保证该确认原语在接收到基于调度的无线帧之前被MAC层接收，发送Trigger-based PPDU的请求原语应该被尽早发送)。图4给出了一个可行的交互示例(发送请求原语和确认原语的时间点仅为参考，其它合理选择也在本实例的包含范围内)。需要说明的是：在以上操作过程中，PHY层向MAC层发送的确认原语(PHY-TRIGGER-confirm)是可以不存在的。在这种情况下，同样要求PHY层在接收到被调度站点基于调度的无线帧之前完成对接收模块的配置。
实施例四
基本假设与实例一类似。
调度设置独立的参数模块A。MAC层通过原语或其它方式携带被调度站点发送Trigger-based PPDU的发送参数信息，并利用该信息配置参数模块A。
需要说明的是：本实施说明利用Trigger-based PPDU的发送参数信息配置参数模块A和后续如何利用参数模块A配置PHY层的接收模块的操作。是否利用触发无线帧的发送参数配置参数模块A和后续如何利用参数模块A配置PHY层的发送模块的操作以及在需要的情况下，MAC层如何利用触发无线帧和Trigger-based PPDU的发送参数配置参数模块A，参数模块A如何配置PHY层的接收模块和发送模块(例如，先利用触发无线帧的 发送参数配置参数模块A，在参数模块A完成配置PHY层的发送模块之后，再利用Trigger-based PPDU的发送参数配置参数模块A，随后参数模块A配置PHY层的接收模块；或者，在利用以上两类参数信息同时配置参数模块A后，参数模块A先后或同时配置PHY层的接收模块和发送模块)等操作也在本实施例的包含范围内。
如果发送触发无线帧指示为1(发送触发无线帧的指示方式可参考实施例二，这里仅以独立的显性指示为例，其它方式也在本实施例的包含范围之内)，参数模块A利用存储的被调度站点发送Trigger-based PPDU的发送参数信息初始化或配置PHY层的接收模块，PHY层的接收模块使用被调度站点发送Trigger-based PPDU的发送参数信息接收被调度站点的Trigger-based PPDU。如果发送触发帧指示为0，参数模块A不执行初始化或配置PHY层的接收模块的操作。或者，如果发送触发无线帧指示为1，PHY层的接收模块执行读取模块A中的被调度站点发送Trigger-based PPDU的发送参数信息的操作，PHY层的接收模块使用被调度站点发送Trigger-based PPDU的发送参数信息接收被调度站点的Trigger-based PPDU；如果发送触发无线帧指示为0，PHY层的接收模块不执行读取模块A中被调度站点发送Trigger-based PPDU的发送参数信息的操作。需要说明的是：要求PHY层在接收到被调度站点基于调度的无线帧之前完成对接收模块的配置操作。
实施例五
基本假设与实例一类似，调度设备(可以是一个AP或者一个STA)或者调度设备的MAC层，向上述调度设备的PHY层发送Trigger-based PPDU的请求原语(例如，PHY-TRIGGER-request)。其中，上述原语中的变量(例如，TRIGTXVECTOR)携带接收多个被调度站点分别发送Trigger-based PPDU的接收参数信息。在这种情况下，接收多个被调度站点分别发送Trigger-based PPDU的接收参数信息与多个被调度站点分别发送Trigger-based PPDU的对应发送参数相同，包括每个被调度站点的带宽、资源位置、MCS等。
调度设备的PHY层解析信息且完成对PHY层接收模块的配置后，向MAC层发送确认原语(例如，PHY-TRIGGER-confirm)通知MAC层PHY层的接收模块已经完成配置(为了保证该确认原语在接收到基于调度的无线帧之前被MAC层接收，发送Trigger-based PPDU的请求原语应该被尽早发送)。
需要说明的是：在以上操作过程中，PHY层向MAC层发送的确认原语(PHY-TRIGGER-confirm)是可以不存在的。在这种情况下，同样要求PHY层在接收到被调度站点基于调度的无线帧之前完成对接收模块的配置。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
以上所述，仅为本公开的较佳实施例而已，并非用于限定本公开的保护范围。

Claims (21)

  1. 一种配置参数的方法，包括：
    站点使用第一参数集发送第一无线帧，所述第一无线帧中携带第二参数集；
    站点使用第二参数集配置接收过程。
  2. 根据权利要求1所述的方法，其中，所述第二参数集包括所述第一无线帧共同参数的信令部分的参数和用户参数的信令部分的参数。
  3. 根据权利要求2所述的方法，其中，所述共同参数的信令部分包括至少以下之一：带宽大小、保护间隔和长训练序列类型、MU-MIMO的长训练序列类型、高效的长训练序列的数目、是否使用空时编码、是否存在低密度校验码的额外符号部分、包扩展类型、是否采用固定导频。
  4. 根据权利要求2所述的方法，其中，所述用户参数的信令部分包括至少以下之一：用户的关联ID号、资源单元分配、编码类型、调制编码方式、是否使用双载波调制、空间流分配。
  5. 根据权利要求1所述的方法，其中，
    所述站点的MAC层通过第一原语或者指令，将携带有第一参数集的向量参数集发送给PHY层，通知PHY层使用第一参数集配置发送过程。
  6. 根据权利要求1所述的方法，其中，所述站点的MAC层通过第二原语或者指令，将携带有第二参数集的向量参数集发送给PHY层，通知PHY层使用第二参数集配置接收过程。
  7. 根据权利要求1所述的方法，其中，所述第二参数集的有效性持续到所述第二无线帧成功接收后或者所述第二无线帧接收失败后。
  8. 根据权利要求1所述的方法，其中，所述第二参数集的有效性不超过预定义的时间长度，或者预定义的接收帧数，或者预定义的接收字节数。
  9. 根据权利要求1所述的方法，还包括，接收第二无线帧，所述第二无线帧由第一无线帧触发，并采用所述第二参数集的全部或部分作为发送参数。
  10. 一种无线通信装置，包括：配置模块和发送模块；
    所述发送模块设置为使用第一参数集发送第一无线帧，所述第一无线帧中携带第二参数集；
    所述配置模块设置为使用第二参数集直接或者间接配置设备的接收过程。
  11. 根据权利要求10所述的装置，还包括接收模块，设置为：
    接收第二无线帧，所述第二无线帧采用所述第二参数集的全部或部分作为发送参数；
    使用第二参数集接收使用第二参数集发送的第二无线帧。
  12. 根据权利要求10所述的装置，其中，该无线收发装置还包括一个代理模块,该代理模块设置为：
    接收来自配置模块的第一参数集，并使用第一参数集配置发送模块；
    接收来自配置模块的第一参数集，并使用第二参数集配置接收模块。
  13. 一种工作在无线通信中的设备，包括：
    处理器，设置为：
    使用第一参数集发送第一无线帧，所述第一无线帧中携带第二参数集；使用第二参数集直接或者间接配置设备的接收过程；
    存储器，其与所述处理器耦接。
  14. 一种包括计算机可读介质的计算机程序产品，其包括：
    发送代码，设置为使用第一参数集发送第一无线帧，所述第一无线帧中携带第二参数集；
    配置代码，设置为使用第二参数集配置设备的接收过程。
  15. 一种方法，包括：
    接收第一无线帧，所述第一无线帧中携带第二参数集；
    发送第二无线帧，所述第二无线帧采用所述第二参数集的全部或部分作为发送参数。
  16. 根据权利要求15所述的方法，其中，所述第二参数集包括所述第一无线帧共同参数的信令部分的参数和用户参数的信令部分参数。
  17. 根据权利要求15所述的方法，其中，所述共同参数的信令部分包括至少以下之一：带宽大小、保护间隔和长训练序列类型、MU-MIMO的长训练序列类型、高效的长训练序列的数目、是否使用空时编码、是否存在低密度校验码的额外符号部分、包扩展类型、是否采用固定导频。
  18. 根据权利要求15所述的方法，其中，所述用户参数的信令部分包括至少以下之一：用户的关联ID号、资源单元分配、编码类型、调制编码方式、是否使用双载波调制、空间流分配。
  19. 一种无线通讯装置，包括：
    接收模块，设置为接收第一无线帧，所述第一无线帧中携带第二参数集；
    发送模块，设置为发送第二无线帧，所述第二无线帧采用所述第二参数集的全部或部分作为发送参数。
  20. 一种工作在无线通讯中的设备，包括：
    处理器，设置为：
    接收第一无线帧，所述第一无线帧中携带第二参数集；
    发送第二无线帧，所述第二无线帧采用所述第二参数集的全部或部分作为发送参数；
    储存器，其与所述处理器耦接。
  21. 一种包括计算机可读介质的计算机程序产品，其包括：
    接收代码，设置为接收第一无线帧，所述第一无线帧中携带第二参数集；
    发送代码，设置为发送第二无线帧，所述第二无线帧采用所述第二参数集的全部或部 分作为发送参数。
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