WO2020078320A1 - 通信方法和通信装置 - Google Patents

通信方法和通信装置 Download PDF

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Publication number
WO2020078320A1
WO2020078320A1 PCT/CN2019/111039 CN2019111039W WO2020078320A1 WO 2020078320 A1 WO2020078320 A1 WO 2020078320A1 CN 2019111039 W CN2019111039 W CN 2019111039W WO 2020078320 A1 WO2020078320 A1 WO 2020078320A1
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WO
WIPO (PCT)
Prior art keywords
communication
configuration information
information
mimo
frame
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PCT/CN2019/111039
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English (en)
French (fr)
Inventor
韩霄
于健
淦明
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华为技术有限公司
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Publication of WO2020078320A1 publication Critical patent/WO2020078320A1/zh
Priority to US17/231,143 priority Critical patent/US20210234579A1/en

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    • 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
    • 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
    • H04B7/0417—Feedback systems
    • 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
    • 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
    • H04B7/0426—Power distribution
    • 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
    • H04B7/0426—Power distribution
    • H04B7/043—Power distribution using best eigenmode, e.g. beam forming or beam steering
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0645—Variable feedback
    • H04B7/065—Variable contents, e.g. long-term or short-short
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme
    • 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 signaling, 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
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • 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
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams

Definitions

  • the present application relates to the field of communication, and more specifically, to a communication method and a communication device.
  • an access point In wireless communication in high-frequency bands, such as wireless fidelity (WIFI) systems, an access point (AP) can coordinate one or more stations (STAs) to communicate with it through beamforming technology . If the AP communicates with multiple STAs in parallel, it is called multi-user multiple-input multiple-output (MU-MIMO). Multiple STAs send data to the AP simultaneously in parallel in the air domain, which is called uplink MU-MIMO.
  • WIFI wireless fidelity
  • MU-MIMO multi-user multiple-input multiple-output
  • the AP needs to send some configuration information for uplink MU-MIMO to multiple STAs. For example, the AP needs to transmit indication information to multiple STAs, indicating when the STAs can start transmission together, and the duration of the frames used for transmission to ensure that each other can end the transmission at the same time; or, the AP needs to send power to the multiple STA Control information so that these STAs can increase or decrease their own transmission power, thereby balancing the power of the AP receiving signals from all STAs, and at the same time improving the frame reception of the farther STAs.
  • indication information indicating when the STAs can start transmission together, and the duration of the frames used for transmission to ensure that each other can end the transmission at the same time
  • the AP needs to send power to the multiple STA Control information so that these STAs can increase or decrease their own transmission power, thereby balancing the power of the AP receiving signals from all STAs, and at the same time improving the frame reception of the farther STAs.
  • This application provides a communication method, a communication device, and related communication products, which can realize the transmission of configuration information for MIMO.
  • the present application provides a communication method including: a first device sends to one or more second devices for multiple input and multiple output between the first device and the second device Configuration information of MIMO communication, the configuration information is carried in the control tail; the first device performs MIMO communication with the one or more second devices according to the configuration information.
  • the first device sends configuration information for MIMO communication to the second device by controlling tailing.
  • this communication method can save transmission overhead and reduce the complexity of the first device and the second device compared with newly designing a new frame to carry the configuration information.
  • the first device may be a network device or a terminal device; the second device may be a network device or a terminal device.
  • the network device may be an AP, and the terminal device may be an STA.
  • the configuration information may be configuration information for uplink MU and MIMO.
  • the first device and the second device communicate through a high-frequency band.
  • control tail is located after the data frame.
  • control trailing described here is located after the data frame, and it can be understood that the control trailing is located behind the data frame in time sequence.
  • adding the control trailing after the data frame can further save transmission overhead and reduce the complexity of the second device compared to adding control trailing carrying the configuration information after other frames. Because after receiving the data frame, the second device can directly obtain the configuration information from the control tailing after the data frame has the control tailing, without having to judge that the configuration is carried in the control tailing Information or other information.
  • the AP adds a control tail carrying configuration information for MIMO communication after the data frame to obtain a PPDU, and then the AP sends the PPDU to the STA.
  • the first device may also send indication information to the second device to indicate whether the control tail is added after the data frame.
  • the AP may add control tailing after the data frame, and add padding bits after the control tailing to obtain a PPDU, and then send the PPDU to the STA.
  • the first device adds padding bits after controlling the tailing, so that the PPDUs sent by the first device to different second devices have the same length, so that the second devices can process the received PPDUs for the same time, and thus can These second devices can perform MIMO communication with the first device simultaneously and in parallel.
  • the padding bits are training sequences.
  • the configuration information includes at least one of the following information: the second device should feed back to the first device Type of the frame, the information that the second device should feed back to the first device through the frame, the number of antennas, antenna number, sector / beam number, channel aggregation indicator, bandwidth, main channel number, single input single output SISO / MIMO indication, single-user SU / multi-user MU, MIMO indication, packet number, transmission power of the first device, target received signal strength indication, timing advance, modulation and coding mode, channel allocation information / resource unit allocation Information or spatial stream allocation information / random access resource unit information.
  • the present application provides a communication method, the communication method includes: a second device receives configuration information for MIMO communication between the second device and the first device from a first device, so The configuration information is carried in the control tail; the second device performs MIMO communication with the first device according to the configuration information.
  • the first device sends configuration information for MIMO communication to the second device by controlling tailing.
  • this communication method can save transmission overhead and reduce the complexity of the first device and the second device compared with newly designing a new frame to carry the configuration information.
  • the first device may be a network device or a terminal device; the second device may be a network device or a terminal device.
  • the network device may be an AP, and the terminal device may be an STA.
  • the configuration information may be configuration information for uplink MU and MIMO.
  • the first device and the second device communicate through a high-frequency band.
  • control tail is located after the data frame.
  • control trailing described here is located after the data frame, and it can be understood that the control trailing is located behind the data frame in time sequence.
  • adding the control trailing after the data frame can further save transmission overhead and reduce the complexity of the second device compared to adding control trailing carrying the configuration information after other frames. Because after receiving the data frame, the second device can directly obtain the configuration information from the control tailing after the data frame has the control tailing, without having to judge that the configuration is carried in the control tailing Information or other information.
  • the STA receives a PPDU from the AP.
  • the PPDU includes a data frame and a control tail, which is located after the data frame.
  • the control tail carries configuration information for MIMO communication.
  • the second device may also receive indication information from the first device, the indication information indicating whether the control trailing is added after the data frame. The second device can then use the indication information to determine whether the control tail is added after the data frame, and if so, the second device can obtain the control tail from the data frame and obtain the configuration information carried in the control tail; Otherwise, the second device may not need to obtain control tailing and the configuration information after the data frame, thereby saving resources of the second device.
  • the AP may add control tailing after the data frame, and add padding bits after the control tailing to obtain a PPDU, and then send the PPDU to the STA.
  • the first device adds padding bits after controlling the tailing, so that the PPDUs sent by the first device to different second devices have the same length, so that the second devices can process the received PPDUs for the same time, and thus can These second devices can perform MIMO communication with the first device simultaneously and in parallel.
  • the padding bits are training sequences.
  • the configuration information includes at least one of the following information: the second device should feed back to the first device Type of the frame, the information that the second device should feed back to the first device through the frame, the number of antennas, antenna number, sector / beam number, channel aggregation indicator, bandwidth, main channel number, single input single output SISO / MIMO indication, single-user SU / multi-user MU, MIMO indication, packet number, transmission power of the first device, target received signal strength indication, timing advance, modulation and coding mode, channel allocation information / resource unit allocation Information or spatial stream allocation information / random access resource unit information.
  • a communication device including various modules or units for performing the communication method in the first aspect or the second aspect or any possible implementation manner thereof.
  • a communication device including a processor.
  • the processor is coupled to the memory, and can be used to execute instructions in the memory to implement the first aspect or the second aspect, or any possible implementation manner of the communication method.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication device is a network device.
  • the communication interface may be a transceiver or an input / output interface.
  • the communication device is a chip that can be configured in a network device.
  • the communication interface may be an input / output interface.
  • the communication device is a terminal device.
  • the communication interface may be a transceiver or an input / output interface.
  • the communication device is a chip that can be configured in the terminal device.
  • the communication interface may be an input / output interface.
  • the transceiver may be a transceiver circuit.
  • the input / output interface may be an input / output circuit.
  • a processor including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the communication method in the first aspect or the second aspect or any one of the possible implementation manners.
  • the processor may be a chip
  • the input circuit may be an input pin
  • the output circuit may be an output pin
  • the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, the receiver
  • the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by the transmitter
  • the circuit may be the same circuit, which is used as an input circuit and an output circuit at different times, respectively.
  • the embodiments of the present application do not limit the specific implementation manner of the processor and various circuits.
  • a processing device including a processor and a memory.
  • the processor is used to read the instructions stored in the memory, and can receive signals through the receiver and transmit signals through the transmitter to perform the communication method in the first aspect or the second aspect or any possible implementation manner.
  • processors there are one or more processors and one or more memories.
  • the memory may be integrated with the processor, or the memory and the processor are provided separately.
  • the memory may be non-transitory (non-transitory) memory, such as read-only memory (read only memory, ROM), which may be integrated with the processor on the same chip, or may be set in different On the chip, the embodiments of the present application do not limit the type of memory and the manner of setting the memory and the processor.
  • non-transitory memory such as read-only memory (read only memory, ROM)
  • ROM read only memory
  • sending instruction information may be a process of outputting instruction information from the processor
  • receiving capability information may be a process of receiving input capability information by the processor.
  • the processed output data may be output to the transmitter, and the input data received by the processor may come from the receiver.
  • the transmitter and the receiver may be collectively referred to as a transceiver.
  • the processing device in the sixth aspect above may be a chip, and the processor may be implemented by hardware or software.
  • the processor When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc .; when implemented by software
  • the processor may be a general-purpose processor, implemented by reading software codes stored in a memory, the memory may be integrated in the processor, or may be located outside the processor and exist independently.
  • a computer program product includes: a computer program (also referred to as code or instructions) that, when the computer program is executed, causes the computer to perform the first aspect or the first The communication method in the two aspects or any one of the possible implementation manners.
  • a computer program also referred to as code or instructions
  • a computer-readable medium that stores a computer program (also may be referred to as code or instructions) that when executed on a computer, causes the computer to perform the first aspect or the above
  • a computer program also may be referred to as code or instructions
  • a communication system including the foregoing first device and second device.
  • FIG. 1 is a schematic diagram of a communication system suitable for the communication method of the embodiment of the present application
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 3 is a schematic information structure diagram in a communication method according to an embodiment of the present application.
  • FIG. 5 is a schematic information structure diagram in a communication method according to another embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of a communication device provided by another embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a communication device according to another embodiment of the present application.
  • GSM global mobile communication
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • general packet radio service general packet radio service, GPRS
  • LTE long term evolution
  • LTE frequency division duplex FDD
  • TDD time division duplex
  • UMTS universal mobile communication system
  • WiMAX worldwide interoperability for microwave access
  • 5G communication system WiFi communication system or new Wireless (new radio, NR) access technology, etc.
  • FIG. 1 shows a schematic diagram of a communication system suitable for a communication method and a communication device according to an embodiment of the present application.
  • the communication system 100 may include at least one network device 110 and at least one terminal device 120.
  • the network device 110 and the terminal device 120 can communicate through a wireless link.
  • the network device 110 or the terminal device 120 may be configured with multiple antennas, and the multiple antennas may include at least one transmit antenna for transmitting signals and at least one receive antenna for receiving signals.
  • the network device 110 or the terminal device 120 may additionally include a transmitter chain and a receiver chain.
  • the transmitter chain and the receiver chain may include multiple components related to signal transmission and reception (such as a processor, modulator, multiplexer, demodulator, demultiplexer, or antenna, etc.) ). Therefore, the network device 110 and the terminal device 120 can communicate through multi-antenna technology.
  • the network device 110 may be any device having a wireless transceiver function.
  • the network device 110 includes but is not limited to: evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), node B (node B, NB), base station controller (base station controller, BSC) ), Base transceiver station (BTS), home base station (for example, home evolved node B, or home node B, HNB), baseband unit (BBU), access point (access point in WIFI system, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., or a fifth-generation (5th generation, 5G) communication system or GNB in an NR system, or a transmission point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node that constitutes a g
  • gNB may include a centralized unit (CU) and DU.
  • the gNB may also include a radio unit (RU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB, for example, CU implements radio resource control (RRC), packet data convergence layer protocol (packet data convergence protocol, PDCP) layer functions
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • DU implements wireless chain
  • the functions of the radio link (control RLC) layer, the media access control (MAC) layer and the physical (PHY) layer The functions of the radio link (control RLC) layer, the media access control (MAC) layer and the physical (PHY) layer.
  • RRC radio resource control
  • MAC media access control
  • PHY physical
  • the network device may be a CU node, or a DU node, or a device including a CU node and a DU node.
  • the CU can be divided into network devices in the radio access network (RAN), and can also be divided into network devices in the core network (CN), which is not limited in this application.
  • RAN radio access network
  • CN core network
  • the terminal device 120 may also be called a user equipment (user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, STA, wireless communication device, user agent or user device.
  • UE user equipment
  • access terminal user unit
  • user station mobile station
  • mobile station mobile station
  • remote station remote terminal
  • mobile device user terminal
  • terminal STA
  • wireless communication device user agent or user device.
  • the terminal devices in the embodiments of the present application may be mobile phones, tablet computers, computers with wireless transceiver functions, virtual reality (VR) terminal devices, and augmented reality (AR) terminals Wireless terminals in equipment, industrial control (industrial control), wireless terminals in self-driving (self-driving), wireless terminals in remote medical (remote medical), wireless terminals in smart grid (smart grid), transportation safety ( wireless terminals in transportation, wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • the embodiments of the present application do not limit the application scenarios.
  • the network device 110 may also be a virtual AP with multiple antennas formed by a cooperative system composed of multiple APs.
  • a virtual AP may include two or more physical APs, and antennas of these physical APs may jointly form MIMO to provide services for multiple STAs.
  • two communication devices with communication connections may obtain gain by beamforming (beamforing), respectively.
  • the sending end, such as the network device 110, and the receiving end, such as the terminal device 120, can acquire the pairing relationship between the transmission beam and the reception beam through beam training.
  • the beam can be understood as a spatial filter (spatial filter) or spatial parameters (spatial parameters).
  • the beam used to send a signal can be called a transmission beam (transmission beam, Tx beam), which can be a spatial transmission filter (spatial domain domain transmit filter) or a spatial transmission parameter (spatial domain domain transmission parameter);
  • the beam used to receive a signal can be called For the reception beam (reception beam, Rx beam), it can be a spatial reception filter (spatial domain reception filter) or a spatial reception parameter (spatial domain reception parameter).
  • the technique of forming a beam may be a beam forming technique or other techniques.
  • the beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital / analog beamforming technology.
  • the transmit beam may refer to the signal intensity distribution formed in different directions in space after the signal is transmitted by the antenna, and the receive beam may refer to the signal intensity distribution of the wireless signal received from the antenna in different directions in space.
  • the beam may be, for example, a spatial filter.
  • a spatial filter for example, a spatial filter.
  • beam and spatial filter can be used interchangeably, for example, “transmit beam” and “spatial transmit filter” can be used interchangeably, “receive beam” and “spatial receive filter” can be used interchangeably, in When the difference is not emphasized, the meaning to be expressed is the same.
  • the beam pairing relationship that is, the pairing relationship between the transmit beam and the receive beam, that is, the pairing relationship between the spatial transmit filter and the spatial receive filter.
  • a large beamforming gain can be obtained by transmitting a signal between a transmission beam and a reception beam having a beam pairing relationship.
  • the sending end may send the reference signal by beam scanning, and the receiving end may also receive the reference signal by beam scanning.
  • the transmitting end can form beams with different directivities in the space by means of beamforming, and can poll on multiple beams with different directivities to transmit reference signals through beams with different directivities, so that The power of the reference signal to transmit the reference signal in the direction pointed by the transmission beam can reach the maximum.
  • the receiving end can also form beams with different directivities in the space through beamforming, and can poll on multiple beams with different directivities to receive reference signals through beams with different directivities, so that the receiving end receives The power of the reference signal can be maximized in the direction pointed by the receive beam.
  • the receiving end can perform channel measurement based on the received reference signal, and report the measurement result to the sending end.
  • the receiving end may report a part of the reference signal resource with a large reference signal receiving power (reference signal receiving power, RSRP) to the sending end, such as reporting the identifier of the reference signal resource, so that the sending end uses channels when transmitting data or signaling Receive and send signals with better quality beam pairing.
  • RSRP reference signal receiving power
  • the MIMO in the embodiment of the present application may be uplink single-user multiple-input multiple-output (SU-MIMO), uplink MU-MIMO, downlink SU-MIMO, or downlink MU-MIMO.
  • SU-MIMO uplink single-user multiple-input multiple-output
  • MU-MIMO uplink MU-MIMO
  • downlink SU-MIMO downlink MU-MIMO
  • the embodiments of the present application propose a new communication method, which can realize the transmission of configuration information for MIMO between the sending end (such as the network device 110) and the receiving end (such as the terminal device 120), so that the sending end and the receiving MIMO transmission between terminals.
  • FIG. 2 is an exemplary flowchart of a communication method according to an embodiment of the present application. It should be understood that FIG. 2 shows steps or operations of the communication method, but these steps or operations are only examples, and other operations or variations of the operations in FIG. 2 may be performed in the embodiments of the present application.
  • the first device sends configuration information for implementing MIMO between the one or more second devices and the first device to one or more second devices, where the configuration information is carried in a control trail (control trailer). Accordingly, the second device of the one or more second devices receives the configuration information from the first device.
  • control tailing is the same as or similar to the definition of control tailing defined in the prior art or existing standards or existing protocols.
  • control tailing can be added to the end of some packets (such as data packets) or frames Information to carry additional instructions.
  • the configuration information may also be understood as: configuration information used to trigger the second device to perform MIMO communication with the first device.
  • the configuration information may be understood as: indicating what information the second device should send to the first device through the MIMO mode and / or indicating which MIMO resources the second device should send information to the first device.
  • the specific content of the configuration information sent by the first device to different second devices may be the same or different.
  • the first device may be the network device 110 or the terminal device 120 shown in FIG. 1.
  • the second device may be the network device 110 or the terminal device 120 shown in FIG. 1.
  • the first device may send the configuration information to the second device in a high-frequency band.
  • the network device can send the configuration information to the terminal device through downlink MIMO, or through frequency division multiple access (frequency division multiple access, The FDMA) method sends the configuration information to the terminal device.
  • FDMA frequency division multiple access
  • the network device may send the configuration information to some terminal devices among multiple terminal devices through downlink MIMO, and through FDMA Sending the configuration information to other terminal devices among the plurality of terminal devices.
  • the network device sending the configuration information to multiple terminal devices in a MIMO manner means that the network device uses different spatial streams to send the configuration information to the multiple terminal devices.
  • the network device When the network device sends the configuration information to the terminal device through the FDMA method, it means that the network device uses different frequencies for sending the configuration information to the multiple terminal devices. Wherein, when multiple terminal devices are located in the same area, the configuration information may be sent to the multiple terminal devices through the same sector or antenna.
  • the configuration information carried in the trailing tail for implementing MIMO between the second device and the first device may include one or more of the following information: the type of the frame that the second device should feed back to the first device, The information that the second device should feed back to the first device through the frame, the number of antennas (antenna); antenna numbers (antenna ID); sector / beam number (sector ID / beam ID); channel aggregation (channel aggregation) indication, used to indicate whether to use channel aggregation; bandwidth (bandwidth, BW); primary channel number (primary channels number); SISO / MIMO indication, used to indicate the use of SISO or MIMO; SU MIMO / MU MIMO indication, Used to indicate the use of SUMIMO or MUMIMO; group ID (Group ID); the first device's transmission power (TX); the target (Target) received signal strength indicator (receive signal strength indicator (RSSI); time advance ( time); modulation and coding mode (modulation and coding scheme, MCS) channel
  • the number of antennas may be the number of antennas used for MIMO communication on the second device
  • the antenna number may be the number of antennas used for MIMO communication on the second device
  • the sector / beam number may be used for MIMO on the second device
  • the number of the sector or beam corresponding to the communication antenna, and the channel aggregation indicator may be used to indicate whether the second device uses channel aggregation.
  • the second device of the one or more second devices performs MIMO communication with the first device according to the configuration information.
  • the second device of the one or more second devices after receiving the control tail from the first device, obtains the configuration information from the control tail, and communicates with the first device according to the configuration information Perform MIMO communication.
  • the first device and the second device may perform MIMO communication in a high-frequency band.
  • the configuration information may be configuration information for uplink SU-MIMO.
  • the network device may send the configuration information to only one terminal device, and then the terminal device performs SU-MIMO communication with the network device according to the configuration information.
  • the configuration information may be configuration information for uplink MU-MIMO.
  • the network device may send the configuration information to multiple terminal devices, and then the multiple terminal devices perform MU-MIMO communication with the network device according to the configuration information.
  • the first device may carry configuration information for MIMO in the control tail, so as to send the configuration information to the second device through the control tail, thereby realizing the communication between the first device and the second device MIMO communication.
  • the configuration information since the configuration information is carried in the control tail, it is not necessary to design a new frame to carry the configuration information, thereby saving the transmission overhead between the first device and the second device and reducing the first device The complexity of implementation with the second device.
  • the frame for transmitting data is called a data frame.
  • the control tail carrying the configuration information in the embodiment of the present application may be located behind the data frame and sent to the second device together with the data frame.
  • the control trailing described here after the data frame can be understood as the control trailing position following the data frame in time sequence.
  • An example of the combined structure diagram of the data frame and the control tailing is shown in FIG. 3.
  • control tail can also be added after other frames, so as to be sent to the second device together with the other frames, which is not limited in the embodiment of the present application.
  • the first device may send a physical layer convergence protocol (physical layer convergence protocol, PLCP) data unit (data unit) to the STA.
  • the physical layer convergence protocol data unit may be simply referred to as PPDU, which includes data frames and / or the control tail.
  • the second device After the second device receives the data frame from the first device, it can determine whether control tailing is added after the data frame. After the data frame is dragged, a control tail is added, and the configuration information carried in the control tail can be controlled, and MIMO communication is performed with the first device according to the configuration information.
  • the first device may also send indication information to the second device to indicate whether control tailing is added after the data frame.
  • the second device may determine whether control tailing is added after the data frame according to the indication information.
  • the above indication information may be added after the data frame to indicate whether the control tail is added after the data frame.
  • other methods can also be used to indicate whether the control tail is added after the data frame, for example, in single carrier SC (single carrier), orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM)
  • the scrambling code initialization field (port) physical layer (PHY) and other scrambling code initialization fields (scrambler initialization field) carry the indication information; or, it can be in a new header (header), such as future directional multi-G bits (future directional multi- gigabit (FDMG) -header carries the indication information.
  • control trailer type may also be called a control trailer trigger type (control trailer type), which indicates that the first device instructs the second device to return the type of the frame to the first device; info) may include one or more of the foregoing configuration information; trigger type independent information (trigger type dependent information), indicating that the first device instructs the second device to feedback to the first device by controlling the frame corresponding to the trailing trigger type Information.
  • control tailing shown in FIG. 4 is only an example, and should not be limited to the control tailing in the embodiment of the present application.
  • the control trailing trigger type can indicate any of the following frame types: basic (trigger frame); beamforming report polling (beamforming report, poll, BRP) trigger frame; multi-user block confirmation request (MU block acknowledge (request, MU-BAR) trigger frame; multi-user request to send (MU request to send, MU-RTS) trigger frame; buffer status report polling (buffer status report (poll, BSRP) trigger frame; GCR MU-BAR: multicast Multi-user block acknowledgment request trigger frame with repetition (groupcast withretries); bandwidth inquiry report poll (BQRP) trigger frame; null data (null data packet, NDP) feedback report report poll (feedback report (poll) trigger frame.
  • basic (trigger frame) beamforming report polling (beamforming report, poll, BRP) trigger frame
  • multi-user block confirmation request MU block acknowledge (request, MU-BAR) trigger frame
  • MU request to send MU request to send, MU-RTS
  • buffer status report polling buffer status report (poll
  • any one of the above frames can refer to the meaning of the related frame information in the prior art, protocol or standard. For the sake of brevity, it will not be repeated here.
  • the second device may feed back the frame corresponding to the “control tail trigger type” to the network device according to the configuration information in the “public information” ,
  • the frame carries the information indicated by "trigger type independent information”.
  • the first device may also add padding bits after and / or before controlling the tailing, so that the lengths of the data packets sent by the first device to multiple second devices are aligned, Therefore, each second device can have sufficient time to process the information in the data packet, and the plurality of second devices can simultaneously end the processing of the data packet to realize the inter-second device Synchronization.
  • This stuffing bit is a training (TRN) sequence.
  • FIG. 5 An example diagram of the combined structure of the data frame, control trailing and stuffing bits is shown in FIG. 5.
  • the configuration information used by the terminal device and the network device to implement MIMO can also be carried in a high throughput (HT) control field.
  • HT high throughput
  • a frame may be newly designed, and the frame carries configuration information for the second device and the first device to implement MIMO.
  • a trigger frame similar to that in the prior art, protocol, or standard may be designed, and the configuration information is carried in the trigger frame.
  • the first device sends such a frame to the second device to facilitate sending the configuration information to the second device, and then the second device performs MIMO communication with the first device according to the configuration information.
  • the communication device 600 may include a sending module 610 and a communication module 620.
  • the various modules included in the communication device 1000 may be implemented in software and / or hardware.
  • the communication device 1000 may be used to perform the steps performed by the network device in the communication method described in FIG. 2.
  • the sending module 610 is configured to send configuration information for multiple input multiple output MIMO communication between the second device and the communication device to one or more second devices, the configuration information carried in Tail
  • the communication module is configured to perform MIMO communication with the one or more second devices according to the configuration information.
  • control tail is located after the data frame.
  • the stuffing bits are training sequences.
  • the configuration information includes at least one of the following information: the type of the frame that the second device should feed back to the communication device, the information that the second device should feed back to the communication device through the frame, the antenna Number, antenna number, sector / beam number, channel aggregation indicator, bandwidth, main channel number, single-input single-output SISO / MIMO indicator, single-user SU / multi-user MU MIMO indicator, group number, the communication device
  • the transmission power target received signal strength indication, timing advance, modulation and coding mode, channel allocation information / resource unit allocation information or spatial stream allocation information / random access resource unit information.
  • the communication device may be a network device, such as an AP; or, the communication device may be a terminal device, such as an STA; or, the communication device may be a chip that can be integrated in the network device, for example, it may be integrated in The chip in the AP; or, the communication device may be a chip that can be integrated in the terminal device, for example, a chip that can be integrated in the STA.
  • FIG. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application. It should be understood that the communication device 700 shown in FIG. 7 is only an example, and the communication device in the embodiment of the present application may further include other modules or units, or include modules with similar functions to the modules in FIG. All modules in 7.
  • the communication device 700 shown in FIG. 7 may include a receiving module 710 and a communication module 720.
  • the various modules included in the communication device 700 may be implemented in software and / or hardware.
  • the communication apparatus 700 may be used to perform the steps performed by the terminal device in the communication method described in FIG. 2.
  • the receiving module 710 is configured to receive configuration information for MIMO communication between the communication device and the first device from the first device, where the configuration information is carried in the control trail.
  • the communication module 720 is configured to perform MIMO communication with the first device according to the configuration information.
  • control tail is located after the data frame.
  • the stuffing bits are training sequences.
  • the configuration information includes at least one of the following information: the type of frame that the communication device should feed back to the first device, the information that the communication device should feed back to the first device through the frame, the antenna Number, antenna number, sector / beam number, channel aggregation indicator, bandwidth, main channel number, single-input single-output SISO / MIMO indicator, single-user SU / multi-user MU MIMO indicator, packet number, the first The device's transmission power, target received signal strength indicator, timing advance, modulation and coding mode, channel allocation information / resource unit allocation information or spatial stream allocation information / random access resource unit information.
  • the communication device may be a network device, such as an AP; or, the communication device may be a terminal device, such as an STA; or, the communication device may be a chip that can be integrated in the network device, for example, it may be integrated in The chip in the AP; or, the communication device may be a chip that can be integrated in the terminal device, for example, a chip that can be integrated in the STA.
  • FIG. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application. It should be understood that the communication device 800 shown in FIG. 8 is only an example, and the communication device in the embodiment of the present application may further include other modules or units, or include modules with similar functions to the various modules in FIG. 8, or are not intended to include diagrams. All modules in 8.
  • the communication device 800 includes a processor 810 for executing program instructions.
  • the communication device 800 may further include a memory for storing program instructions executed by the processor.
  • the processor 810 executes program instructions to implement the operations implemented by the network device in the communication method described in FIG. 2.
  • the processor executes the program instructions, it may be achieved that: sending configuration information for multiple input multiple output MIMO communication between the second device and the communication device to one or more second devices, the configuration information Carried in the control tail; according to the configuration information, perform MIMO communication with the one or more second devices.
  • control tail is located after the data frame.
  • the stuffing bits are training sequences.
  • the configuration information includes at least one of the following information: the type of the frame that the second device should feed back to the communication device, and the information that the second device should feed back to the communication device through the frame , The number of antennas, antenna number, sector / beam number, channel aggregation indicator, bandwidth, main channel number, single input single output SISO / MIMO indicator, single user SUMIMO / multiuser MU MIMO indicator, grouping number, the The transmission power of the communication device, the target received signal strength indication, the timing advance, the modulation and coding mode, the channel allocation information / resource unit allocation information or the spatial stream allocation information / random access resource unit information.
  • the communication apparatus 800 may be a network device, for example, may be an AP.
  • the communication device 800 may further include a receiver and a transmitter.
  • the transmitter may be used to perform the "transmit" step performed by the first device in the communication method described in FIG. 2; the receiver and / or the transmitter may be used to perform the communication method described in FIG. 2, The "communication" step performed by the first device;
  • the communication apparatus 800 may be a chip that can be integrated in a network device (eg, AP).
  • the communication apparatus 800 may further include a communication interface, where the communication interface is used to perform the “send” step and the “communication” step performed by the first device in the communication method described in FIG. 2.
  • the communication apparatus 800 may be a terminal device, for example, may be a STA.
  • the communication device 800 may further include a receiver and a transmitter.
  • the transmitter can be used to perform the "transmit" step performed by the second device in the communication method described in FIG. 2; the receiver and / or the transmitter can be used to perform the communication method described in FIG. 2, The "communication" step performed by the second device;
  • the communication apparatus 800 may be a chip that can be integrated in a terminal device (for example, STA).
  • the communication apparatus 800 may further include a communication interface, where the communication interface is used to perform the “send” step and the “communication” step performed by the second device in the communication method described in FIG. 2.
  • the processor 810 is used to execute program instructions to implement the operations implemented by the terminal device in the communication method described in FIG. 2.
  • the processor executes the program instructions, it may be achieved that: receiving configuration information for MIMO communication between the communication apparatus and the first device from the first device, the configuration information being carried in the control tail; according to The configuration information performs MIMO communication with the first device.
  • control tail is located after the data frame.
  • the stuffing bits are training sequences.
  • the configuration information includes at least one of the following information: the type of frame that the communication device should feed back to the first device, the information that the communication device should feed back to the first device through the frame, the antenna Number, antenna number, sector / beam number, channel aggregation indicator, bandwidth, main channel number, single-input single-output SISO / MIMO indicator, single-user SU / multi-user MU MIMO indicator, packet number, the first The device's transmission power, target received signal strength indicator, timing advance, modulation and coding mode, channel allocation information / resource unit allocation information or spatial stream allocation information / random access resource unit information.
  • the communication apparatus 800 may be a terminal device, such as a STA.
  • the communication device 800 may further include a receiver and a transmitter.
  • the receiver can be used to perform the "receiving" step performed by the second device in the communication method described in FIG. 2; the transmitter and / or receiver can be used to perform the communication method described in FIG. 2, The "communication" step performed by the second device.
  • the communication apparatus 800 may be a chip that can be integrated in a terminal device (for example, STA).
  • the communication device 800 may further include a communication interface, where the communication interface is used to perform the “receiving” step and the “communication” step performed by the second device in the communication method described in FIG. 2.
  • the communication apparatus 800 may be a network device, for example, may be an AP.
  • the communication device 800 may further include a receiver and a transmitter.
  • the transmitter may be used to perform the "transmit" step performed by the first device in the communication method described in FIG. 2; the receiver and / or the transmitter may be used to perform the communication method described in FIG. 2, The "communication" step performed by the first device;
  • the communication apparatus 800 may be a chip that can be integrated in a network device (eg, AP).
  • the communication apparatus 800 may further include a communication interface, where the communication interface is used to perform the “send” step and the “communication” step performed by the first device in the communication method described in FIG. 2.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a division of logical functions.
  • there may be other divisions for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
  • the processor in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (DSPs), and special integrated circuits. (application specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium.
  • the technical solution of the present application essentially or part of the contribution to the existing technology or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .

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Abstract

本申请提供通信方法和通信装置。本申请提供的通信方法中，第一设备通过控制拖尾向一个或多个第二设备发送用于所述第一设备与所述第二设备之间进行多输入多输出MIMO通信的配置信息，以使得所述第一设备与所述一个或多个第二设备之间可以根据所述配置信息进行MIMO通信。

Description

通信方法和通信装置
本申请要求于2018年10月15日提交中国专利局、申请号为201811196450.7、申请名称为“通信方法和通信装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，并且更具体地，涉及通信方法和通信装置。
背景技术
高频频段的无线通信中，例如无线保真(wireless fidelity，WIFI)***中，接入点(access point，AP)可以通过波束成形技术协调一个或多个站点(station，STA)与之进行通信。若AP同时与多个STA并行通信，称为多用户多输入多输出(multi-user multiple-input multiple-output，MU-MIMO)。多个STA在空域同时并行给AP发送数据，称为上行MU-MIMO。
为了协调上行MU-MIMO，AP需要向多个STA发送一些用于上行MU-MIMO的配置信息。例如，AP需要向多个STA传送指示信息，指示这些STA何时可以一起开始传输，以及传输使用的帧的持续时间，以确保彼此能够同时结束传输；或者，AP需要向这多个STA发送功率控制信息，以便于这些STA可以调高或调低自身的传输功率，进而平衡AP从所有STA接收信号的功率，同时改善较远STA的帧接收情况。
因此，AP如何向STA发送用于上行MU-MIMO的配置信息，是一个亟待解决的技术问题。
发明内容
本申请提供通信方法、通信装置和相关通信产品，可以实现用于MIMO的配置信息的传输。
第一方面，本申请提供了一种通信方法，该通信方法包括：第一设备向一个或多个第二设备发送用于所述第一设备与所述第二设备之间进行多输入多输出MIMO通信的配置信息，所述配置信息携带在控制拖尾中；所述第一设备根据所述配置信息，与所述一个或多个第二设备进行MIMO通信。
该通信方法中，第一设备通过控制拖尾向第二设备发送用于MIMO通信的配置信息。此外，该通信方法与新设计新的帧来携带所述配置信息相比，可以节省传输开销以及降低第一设备和第二设备的复杂度。
可选地，该第一设备可以是网络设备或终端设备；第二设备可以是网络设备或终端设备。
可选地，网络设备可以是AP，终端设备可以是STA。
可选地，该配置信息可以是用于上行MU MIMO的配置信息。
可选地，该第一设备与该第二设备之间通过高频频段通信。
结合第一方面，在第一种可能的实现方式中，所述控制拖尾位于数据帧之后。
此处所述的控制拖尾位于数据帧之后，可以理解为控制拖尾在时序上位于数据帧之后。
该实现方式中，在数据帧之后添加所述控制拖尾，与在其他帧之后添加携带所述配置信息的控制拖尾相比，可以进一步节省传输开销和降低第二设备的复杂度。因为第二设备在接收该数据帧之后，在数据帧之后存在控制拖尾的情况下，可以直接从控制拖尾中获取所述配置信息，而不用再判断控制拖尾中携带的是所述配置信息还是其他信息。
例如，AP在数据帧之后添加携带用于MIMO通信的配置信息的控制拖尾，得到PPDU，然后AP向STA发送该PPDU。
可选地，第一设备还可以向第二设备发送指示信息，指示数据帧之后是否添加有所述控制拖尾。
结合第一种可能的实现方式，在第二种可能的实现方式中，所述控制拖尾之后还有填充比特。
例如，AP可以在数据帧之后添加控制拖尾，并在控制拖尾之后添加填充比特，得到PPDU，然后向STA发送该PPDU。
第一设备在控制拖尾之后添加填充比特，以使得第一设备向不同的第二设备发送的PPDU的长度相同，从而可以使得这些第二设备处理各自收到的PPDU的时间相同，进而可以使得这些第二设备可以同步并行与第一设备进行MIMO通信。
结合第二种可能的实现方式，在第三种可能的实现方式中，所述填充比特为训练序列。
结合第一方面或上述任意一种可能的实现方式，在第四种可能的实现方式中，所述配置信息包括以下信息中的至少一种：所述第二设备应向所述第一设备反馈的帧的类型，所述第二设备应通过所述帧向第一设备反馈的信息，天线个数，天线编号，扇区/波束编号，信道聚合指示，带宽，主信道编号，单输入单输出SISO/MIMO指示，单用户SU MIMO/多用户MU MIMO指示，分组的编号，所述第一设备的发送功率，目标接收信号强度指示，时间提前量，调制编码模式，信道分配信息/资源单元分配信息或空间流分配信息/随机接入资源单元信息。
第二方面，本申请提供了一种通信方法，所述通信方法包括：第二设备从第一设备接收用于所述第二设备与所述第一设备之间进行MIMO通信的配置信息，所述配置信息携带在控制拖尾中；所述第二设备根据所述配置信息，与所述第一设备进行MIMO通信。
该通信方法中，第一设备通过控制拖尾向第二设备发送用于MIMO通信的配置信息。此外，该通信方法与新设计新的帧来携带所述配置信息相比，可以节省传输开销以及降低第一设备和第二设备的复杂度。
可选地，该第一设备可以是网络设备或终端设备；第二设备可以是网络设备或终端设备。
可选地，网络设备可以是AP，终端设备可以是STA。
可选地，该配置信息可以是用于上行MU MIMO的配置信息。
可选地，该第一设备与该第二设备之间通过高频频段通信。
结合第二方面，在第一种可能的实现方式中，所述控制拖尾位于数据帧之后。
此处所述的控制拖尾位于数据帧之后，可以理解为控制拖尾在时序上位于数据帧之后。
该实现方式中，在数据帧之后添加所述控制拖尾，与在其他帧之后添加携带所述配置信息的控制拖尾相比，可以进一步节省传输开销和降低第二设备的复杂度。因为第二设备在接收该数据帧之后，在数据帧之后存在控制拖尾的情况下，可以直接从控制拖尾中获取所述配置信息，而不用再判断控制拖尾中携带的是所述配置信息还是其他信息。
例如，STA从AP接收PPDU，该PPDU中包括数据帧和控制拖尾，该控制拖尾位于该数据帧之后，该控制拖尾中携带用于MIMO通信的配置信息。
可选地，第二设备还可以从第一设备接收指示信息，该指示信息指示数据帧之后是否添加有所述控制拖尾。然后第二设备可以该指示信息确定数据帧之后是否添加有所述控制拖尾，若是，则第二设备可以从数据帧之后获取控制拖尾，并获取控制拖尾中携带的所述配置信息；否则第二设备可以不用从数据帧之后获取控制拖尾以及获取所述配置信息，从而可以节省第二设备的资源。
结合第一种可能的实现方式，在第二种可能的实现方式中，所述控制拖尾之后还有填充比特。
例如，AP可以在数据帧之后添加控制拖尾，并在控制拖尾之后添加填充比特，得到PPDU，然后向STA发送该PPDU。
第一设备在控制拖尾之后添加填充比特，以使得第一设备向不同的第二设备发送的PPDU的长度相同，从而可以使得这些第二设备处理各自收到的PPDU的时间相同，进而可以使得这些第二设备可以同步并行与第一设备进行MIMO通信。
结合第二种可能的实现方式，在第三种可能的实现方式中，所述填充比特为训练序列。
结合第二方面或上述任意一种可能的实现方式，在第四种可能的实现方式中，所述配置信息包括以下信息中的至少一种：所述第二设备应向所述第一设备反馈的帧的类型，所述第二设备应通过所述帧向第一设备反馈的信息，天线个数，天线编号，扇区/波束编号，信道聚合指示，带宽，主信道编号，单输入单输出SISO/MIMO指示，单用户SU MIMO/多用户MU MIMO指示，分组的编号，所述第一设备的发送功率，目标接收信号强度指示，时间提前量，调制编码模式，信道分配信息/资源单元分配信息或空间流分配信息/随机接入资源单元信息。
第三方面，提供了一种通信装置，包括用于执行第一方面或第二方面或其中任一种可能实现方式中的通信方法的各个模块或单元。
第四方面，提供了一种通信装置，包括处理器。该处理器与存储器耦合，可用于执行存储器中的指令，以实现上述第一方面或第二方面或其中任一种可能实现方式中的通信方法。
可选地，该通信装置还包括存储器。可选地，该通信装置还包括通信接口，处理器与通信接口耦合。
在一种实现方式中，该通信装置为网络设备。当该通信装置为网络设备时，所述通信接口可以是收发器，或，输入/输出接口。
在另一种实现方式中，该通信装置为可以配置于网络设备中的芯片。当该通信装置为 可以配置于网络设备中的芯片时，所述通信接口可以是输入/输出接口。
在另一种实现方式中，该通信装置为终端设备。当该通信装置为终端设备时，所述通信接口可以是收发器，或，输入/输出接口。
在另一种实现方式中，该通信装置为可以配置于终端设备中的芯片。当该通信装置为可以配置于终端设备中的芯片时，所述通信接口可以是输入/输出接口。
可选地，所述收发器可以为收发电路。可选地，所述输入/输出接口可以为输入/输出电路。
第五方面，提供了一种处理器，包括：输入电路、输出电路和处理电路。所述处理电路用于通过所述输入电路接收信号，并通过所述输出电路发射信号，使得所述处理器执行第一方面或第二方面或其中任一种可能实现方式中的通信方法。
在具体实现过程中，上述处理器可以为芯片，输入电路可以为输入管脚，输出电路可以为输出管脚，处理电路可以为晶体管、门电路、触发器和各种逻辑电路等。输入电路所接收的输入的信号可以是由例如但不限于接收器接收并输入的，输出电路所输出的信号可以是例如但不限于输出给发射器并由发射器发射的，且输入电路和输出电路可以是同一电路，该电路在不同的时刻分别用作输入电路和输出电路。本申请实施例对处理器及各种电路的具体实现方式不做限定。
第六方面，提供了一种处理装置，包括处理器和存储器。该处理器用于读取存储器中存储的指令，并可通过接收器接收信号，通过发射器发射信号，以执行第一方面或第二方面或其中任一种可能实现方式中的通信方法。
可选地，所述处理器为一个或多个，所述存储器为一个或多个。
可选地，所述存储器可以与所述处理器集成在一起，或者所述存储器与处理器分离设置。
在具体实现过程中，存储器可以为非瞬时性(non-transitory)存储器，例如只读存储器(read only memory，ROM)，其可以与处理器集成在同一块芯片上，也可以分别设置在不同的芯片上，本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。
应理解，相关的数据交互过程例如发送指示信息可以为从处理器输出指示信息的过程，接收能力信息可以为处理器接收输入能力信息的过程。具体地，处理输出的数据可以输出给发射器，处理器接收的输入数据可以来自接收器。其中，发射器和接收器可以统称为收发器。
上述第六方面中的处理装置可以是一个芯片，该处理器可以通过硬件来实现也可以通过软件来实现，当通过硬件实现时，该处理器可以是逻辑电路、集成电路等；当通过软件来实现时，该处理器可以是一个通用处理器，通过读取存储器中存储的软件代码来实现，该存储器可以集成在处理器中，可以位于该处理器之外，独立存在。
第七方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序(也可以称为代码，或指令)，当所述计算机程序被运行时，使得计算机执行上述第一方面或第二方面或其中任一种可能实现方式中的通信方法。
第八方面，提供了一种计算机可读介质，所述计算机可读介质存储有计算机程序(也可以称为代码，或指令)当其在计算机上运行时，使得计算机执行上述第一方面或第二方 面或其中任一种可能实现方式中的通信方法。
第九方面，提供了一种通信***，包括前述的第一设备和第二设备。
附图说明
图1是适用于本申请实施例的通信方法的通信***的示意图；
图2是本申请实施例的通信方法的示意性流程图；
图3是本申请一个实施例的通信方法中的示意性信息结构图；
图4是本申请一个实施例的控制拖尾的示意性结构图；
图5是本申请另一个实施例的通信方法中的示意性信息结构图；
图6是本申请一个实施例提供的通信装置的示意性框图
图7是本申请另一个实施例提供的通信装置的示意性框图；
图8是本申请另一个实施例提供的通信装置的结构示意图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信***，例如：全球移动通讯(global system for mobile communications，GSM)***、码分多址(code division multiple access，CDMA)***、宽带码分多址(wideband code division multiple access，WCDMA)***、通用分组无线业务(general packet radio service，GPRS)、长期演进(long term evolution，LTE)***、LTE频分双工(frequency division duplex，FDD)***、LTE时分双工(time division duplex，TDD)、通用移动通信***(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信***、5G通信***、WiFi通信***或新无线(new radio，NR)接入技术等。
为便于理解本申请实施例，首先结合图1详细说明适用于本申请实施例的通信***。图1示出了适用于本申请实施例的通信方法和通信装置的通信***的示意图。
如图1所示，该通信***100可以包括至少一个网络设备110和至少一个终端设备120。网络设备110与终端设备120可通过无线链路通信。网络设备110或终端设备120可以配置多个天线，该多个天线可以包括至少一个用于发送信号的发射天线和至少一个用于接收信号的接收天线。另外，网络设备110或终端设备120还可以附加地包括发射机链和接收机链。本领域普通技术人员可以理解，发射机链和接收机链可包括与信号发送和接收相关的多个部件(例如处理器、调制器、复用器、解调器、解复用器或天线等)。因此，网络设备110与终端设备120可通过多天线技术通信。
应理解，网络设备110可以是任意一种具有无线收发功能的设备。网络设备110包括但不限于：演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved nodeB，或home node B，HNB)、基带单元(baseband unit，BBU)，WIFI***中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为第五代(5th generation，5G) 通信***或NR***中的gNB，或，传输点(TRP或TP)，5G***中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或，分布式单元(distributed unit，DU)等。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括射频单元(radio unit，RU)。CU实现gNB的部分功能，DU实现gNB的部分功能，比如，CU实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能，DU实现无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理(physical，PHY)层的功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令，也可以认为是由DU发送的，或者，由DU+CU发送的。可以理解的是，网络设备可以为CU节点、或DU节点、或包括CU节点和DU节点的设备。此外，CU可以划分为接入网(radio access network，RAN)中的网络设备，也可以将CU划分为核心网(core network，CN)中的网络设备，本申请对此不做限定。
还应理解，终端设备120也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、STA、无线通信设备、用户代理或用户装置。
本申请的实施例中的终端设备可以是手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请的实施例对应用场景不做限定。
应理解，网络设备110也可以是多个AP组成的协作***所形成一个具有多个天线的虚拟AP。一个虚拟AP可包含两个或更多个物理AP，这些物理AP的天线可联合构成MIMO为多个STA提供服务。
在某些通信***中，例如5G***，为了在高频场景下对抗路径损耗，具有通信连接的两个通信设备之间可分别通过波束赋形(beamforing)来获得增益。发送端，如网络设备110，和接收端，如终端设备120，可通过波束(beam)训练来获取发射波束与接收波束之间的配对关系。
其中，波束，可以理解为空间滤波器(spatial filter)或空间参数(spatial parameters)。用于发送信号的波束可以称为发射波束(transmission beam，Tx beam)，可以为空间发送滤波器(spatial domain transmit filter)或空间发射参数(spatial domain transmit parameter)；用于接收信号的波束可以称为接收波束(reception beam，Rx beam)，可以为空间接收滤波器(spatial domain receive filter)或空间接收参数(spatial domain receive parameter)。
形成波束的技术可以是波束赋形技术或者其他技术。例如，波束赋形技术具体可以为数字波束赋形技术、模拟波束赋形技术或者混合数字/模拟波束赋形技术等。发射波束可以是指信号经天线发射出去后在空间不同方向上形成的信号强度的分布，接收波束可以是指从天线上接收到的无线信号在空间不同方向上的信号强度分布。
在NR协议中，波束例如可以是空间滤波器(spatial filter)。但应理解，本申请并不排除在未来的协议中定义其他的术语来表示相同或相似的含义的可能。
需要说明的是，“波束”和“空间滤波器”可以交替使用，例如“发射波束”和“空间发射滤波器”可以交替使用，“接收波束”和“空间接收滤波器”可以交替使用，在不强调其区别时，其所要表达的含义是一致的。
波束配对关系，即，发射波束与接收波束之间的配对关系，也就是空间发射滤波器与空间接收滤波器之间的配对关系。在具有波束配对关系的发射波束和接收波束之间传输信号可以获得较大的波束赋形增益。
在一种实现方式中，发送端可通过波束扫描的方式发送参考信号，接收端也可通过波束扫描的方式接收参考信号。具体地，发送端可通过波束赋形的方式在空间形成不同指向性的波束，并可以在多个具有不同指向性的波束上轮询，以通过不同指向性的波束将参考信号发射出去，使得参考信号在发送波束所指向的方向上发射参考信号的功率可以达到最大。接收端也可通过波束赋形的方式在空间形成不同指向性的波束，并可以在多个具有不同指向性的波束上轮询，以通过不同指向性的波束接收参考信号，使得该接收端接收参考信号的功率在接收波束所指向的方向上可以达到最大。
通过遍历各发射波束和接收波束，接收端可基于接收到的参考信号进行信道测量，并将测量得到的结果上报给发送端。例如，接收端可以将参考信号接收功率(reference signal receiving power，RSRP)较大的部分参考信号资源上报给发送端，如上报参考信号资源的标识，以便发送端在传输数据或信令时采用信道质量较好的波束配对关系来收发信号。
在发送端与接收端之间完成波束训练之后，发送端需要向接收端发送用于MIMO的配置信息，以便于接收端能够支持MIMO。本申请实施例中的MIMO可以是上行单用户多输入多输出(single-user multiple-input multiple-output，SU-MIMO)、上行MU-MIMO、下行SU-MIMO或下行MU-MIMO。
因此，本申请实施例提出了新的通信方法，可以实现发送端(例如网络设备110)向接收端(例如终端设备120)之间用于MIMO的配置信息的传输，从而可以实现发送端与接收端之间的MIMO传输。
图2为本申请实施例的通信方法的示例性流程图。应理解，图2示出了该通信方法的步骤或操作，但这些步骤或操作仅是示例，本申请实施例还可以执行其他操作或者图2中的各个操作的变形。
S210，第一设备向一个或多个第二设备发送用于所述一个或多个第二设备与所述第一设备之间实现MIMO的配置信息，所述配置信息携带在控制拖尾(control trailer)中。相应地，所述一个或多个第二设备中的第二设备从第一设备接收所述配置信息。
控制拖尾的含义与现有技术或者现有标准或者现有协议中定义的控制拖尾的含义相同或相似，例如，控制拖尾可以是在一些包(例如数据包)或帧的尾部加一块信息，来携带额外的指示信息。
所述配置信息也可以理解为：用于触发第二设备与第一设备进行MIMO通信的配置信息。
或者，所述配置信息可以理解为：指示第二设备通过MIMO方式应向第一设备发送的是哪些信息和/或指示第二设备应通过哪些MIMO资源向第一设备发送信息。
其中，第一设备向不同的第二设备发送的所述配置信息的具体内容可以相同，也可以不相同。
该第一设备可以是图1中所示的网络设备110或终端设备120。该第二设备可以是图1中所示的网络设备110或终端设备120。
在一种可能的实现方式中，第一设备可以在高频频段向第二设备发送所述配置信息。
例如，所述配置信息用于终端设备与网络设备之间实现上行MIMO时，该网络设备可以通过下行MIMO方式向终端设备发送所述配置信息，也可以通过频分多址(frequency division multiple access,FDMA)方式向终端设备发送所述配置信息。
或者，例如，所述配置信息用于终端设备与网络设备之间实现上行MIMO时，该网络设备可以通过下行MIMO方式向多个终端设备中的部分终端设备发送所述配置信息，并通过FDMA方式向这多个终端设备中的其他终端设备发送所述配置信息。
网络设备通过MIMO方式向多个终端设备发送所述配置信息是指所述网络设备向所述多个终端设备发送所述配置信息所使用的空间流不同。
网络设备通过FDMA方式向终端设备发送所述配置信息是指所述网络设备向所述多个终端设备发送所述配置信息所使用的频率不同。其中，当多个终端设备位于同一区域时，可以通过同一个扇区或天线向这多个终端设备发送所述配置信息。
控制拖尾中携带的用于第二设备与第一设备之间实现MIMO的配置信息可以包括如下一种或多种信息：所述第二设备应向所述第一设备反馈的帧的类型，所述第二设备应通过所述帧向第一设备反馈的信息，天线个数(number of antenna)；天线编号(antenna I D)；扇区/波束编号(sector ID/beam ID)；信道聚合(channel aggregation)指示，用于指示是否使用信道聚合；带宽(bandwidth，BW)；主信道编号(primary channel number)；SISO/MIMO指示，用于指示使用SISO或MIMO；SU MIMO/MU MIMO指示，用于指示使用SU MIMO或MU MIMO；分组的编号(Group ID)；第一设备的发送功率(TX power)；目标(Target)接收信号强度指示(receive signal strength indicator，RSSI)；时间提前量(time advance)；调制编码模式(modulation and coding scheme，MCS)信道分配(channel allocation)/资源单元(RU，resources unit))分配；空间流分配(spatial streams allocation，SS allocation)/随机接入资源单元信息(random access RU information)。
上述任意一种信息的含义可以参考现有技术、协议或标准中相关信息的含义，为了简洁，此处不再赘述。例如，天线个数可以是第二设备上用于MIMO通信的天线数量，天线编号可以是第二设备上用于MIMO通信的天线的编号，扇区/波束编号可以是第二设备上用于MIMO通信的天线对应的扇区或波束的编号，信道聚合指示可以用于指示第二设备是否使用信道聚合。
S220，所述一个或多个第二设备中的第二设备根据所述配置信息与所述第一设备进行MIMO通信。
具体地，这一个或多个第二设备中的第二设备从第一设备接收所述控制拖尾后，从所述控制拖尾中获取所述配置信息，并根据该配置信息与第一设备进行MIMO通信。
在一种可能的实现方式中，第一设备与第二设备之间可以在高频频段进行MIMO通信。
例如，所述配置信息可以是用于上行SU-MIMO的配置信息。这种情况下，网络设备 可以仅向一个终端设备发送该配置信息，然后该终端设备根据该配置信息与该网络设备进行SU-MIMO通信。
例如，所述配置信息可以是用于上行MU-MIMO的配置信息。这种情况下，网络设备可以向多个终端设备发送该配置信息，然后这多个终端设备根据该配置信息与该网络设备进行MU-MIMO通信。
第二设备根据该配置信息与该第一设备进行MIMO通信的具体实现方式，可以参考现有通信***中STA与AP进行MIMO通信的实现方式，为了简洁，此处不再赘述。
本申请实施例中，第一设备可以在控制拖尾中携带用于MIMO的配置信息，以通过该控制拖尾向第二设备发送该配置信息，从而实现第一设备与第二设备之间的MIMO通信。此外，该实施例中，由于配置信息携带在控制拖尾中，因此可以不用设计新的帧来携带该配置信息，从而可以节省第一设备与第二设备之间的传输开销以及降低第一设备与第二设备的实现复杂度。
本申请实施例中，将用于传输数据(DATA)的帧称为数据帧。可选地，本申请实施例中携带所述配置信息的控制拖尾可以位于数据帧的后面，和数据帧一起发送给第二设备。此处所述的控制拖尾位于数据帧的后面可以理解为控制拖尾在时序上位于数据帧之后。数据帧和控制拖尾的组合结构图的一种示例如图3所示。
当然，该控制拖尾也可以添加在其他帧的后面，以便于和所述其他帧一起发送给第二设备，本申请实施例对此不作限制。
例如，第一设备为AP，第二设备为STA时，第一设备可以向STA发送物理层会聚协议(physical layer convergence protocol，PLCP)数据单元(data unit)，物理层会聚协议数据单元可以简称为PPDU，PPDU中包括数据帧和/或所述控制拖尾。
第二设备从第一设备接收数据帧后，可以判断该数据帧后面是否添加有控制拖尾。拖该数据帧后面添加有控制拖尾，则可以控制控制拖尾中携带的所述配置信息，并根据该配置信息与第一设备进行MIMO通信。
可选地，第一设备还可以向第二设备发送指示信息，指示该数据帧后面是否添加有控制拖尾。第二设备接收该指示信息后，可以根据指示信息判断该数据帧后面是否添加有控制拖尾。
例如，可以在数据帧之后添加上述指示信息来指示数据帧之后是否添加有所述控制拖尾。当然，也可以通过其他方式来指示数据帧之后是否添加有所述控制拖尾，例如，可以在单载波SC(single carrier)、正交频分复用技术(orthogonal frequency division multiplexing，OFDM)中的端口物理层(port physical layer，PHY)等的扰码初始化域(scrambler initialization field)中携带所述指示信息；或，可以在新的头(header)，例如未来定向多G比特(future directional multi-gigabit，FDMG)-header中携带所述指示信息。
本申请实施例中的控制拖尾的一种示例性结构如图4所示。其中，控制拖尾类型(control trailer type)也可以称为控制拖尾触发类型(control trailer trigger type)，表示第一设备指示第二设备应向第一设备反馈的帧的类型；公共信息(common info)可以包括前述配置信息中的一种或多种；触发类型独立信息(trigger type dependent info)，表示第一设备指示第二设备应通过控制拖尾触发类型所对应的帧向第一设备反馈的信息。
应理解，图4所示的控制拖尾仅是一种示例，不应对本申请实施例中的控制拖尾构成 限制。
控制拖尾触发类型可以指示以下任意一种帧的类型：基本(basic)触发帧(trigger frame)；波束赋形汇报轮询(beamforming report poll，BRP)触发帧；多用户块确认请求(MU block acknowledge request，MU-BAR)触发帧；多用户请求发送(MU request to send，MU-RTS)触发帧；缓存状态汇报轮询(buffer status report poll，BSRP)触发帧；GCR MU-BAR：组播带重复(group cast with retries)的多用户块确认请求触发帧；带宽询问汇报轮询(bandwidth query report poll，BQRP)触发帧；空数据包(null data packet，NDP)反馈汇报汇报轮询(feedback report poll)触发帧。
上述任意一种帧的含义可以参考现有技术、协议或标准中相关帧息的含义，为了简洁，此处不再赘述。
也就是说，第二设备从第一设备接收图4所示的控制拖尾后，可以根据其中的“公共信息”中的配置信息，向网络设备反馈“控制拖尾触发类型”所对应的帧，该帧中携带“触发类型独立信息”所指示的信息。
本申请实施例中，可选地，第一设备还可以在控制拖尾之后和/或之前添加填充(padding)比特，以使得第一设备向多个第二设备发送的数据包的长度对齐，从而使得每个第二设备可以具有足够的时间的来处理该数据包中的信息，以及可以使得这多个第二设备能够同时结束对该数据包的处理，实现这多个第二设备之间的同步。该填充比特的一种示例为训练(TRN)序列。
数据帧、控制拖尾和填充比特的组合结构的一种示例图如图5所示。
本申请中，可选地，用于终端设备和网络设备实现MIMO的配置信息还可以携带在高吞吐率(high throughput，HT)控制域(control field)中。
或者，可选地，可以新设计一种帧，在该帧中携带用于第二设备和第一设备实现MIMO的配置信息。例如，可以设计一种类似于现有技术、协议或标准中的触发帧，在该触发帧中携带该配置信息。第一设备向第二设备发送这种帧，以便于向第二设备发送该配置信息，然后第二设备根据该配置信息与第一设备进行MIMO通信。
图6是本申请实施例提供的通信装置的示意性框图。如图6所示，该通信装置600可以包括发送模块610和通信模块620。其中，通信装置1000包括的各个模块可以通过软件和/或硬件方式实现。
通信装置1000可以用于执行图2所描述的通信方法中由网络设备执行的步骤。
例如，发送模块610，用于向一个或多个第二设备发送用于所述第二设备与所述通信装置之间进行多输入多输出MIMO通信的配置信息，所述配置信息携带在控制拖尾中；
通信模块，用于根据所述配置信息，与所述一个或多个第二设备进行MIMO通信。
可选地，所述控制拖尾位于数据帧之后。
可选地，所述控制拖尾之后还有填充比特。
可选地，所述填充比特为训练序列。
可选地，所述配置信息包括以下至少一种信息：所述第二设备应向所述通信装置反馈的帧的类型，所述第二设备应通过所述帧向通信装置反馈的信息，天线个数，天线编号，扇区/波束编号，信道聚合指示，带宽，主信道编号，单输入单输出SISO/MIMO指示，单用户SU MIMO/多用户MU MIMO指示，分组的编号，所述通信装置的发送功率，目标 接收信号强度指示，时间提前量，调制编码模式，信道分配信息/资源单元分配信息或空间流分配信息/随机接入资源单元信息。
可选地，该通信装置可以是网络设备，例如AP；或者，该通信装置可以是终端设备，例如STA；或者，该通信装置可以是能够集成在网络设备中的芯片，例如可以是能够集成在AP中的芯片；或者，该通信装置可以是能够集成在终端设备中的芯片，例如可以是能够集成在STA中的芯片。
图7是本申请一个实施例的通信装置的示意性结构图。应理解，图7示出的通信装置700仅是示例，本申请实施例的通信装置还可包括其他模块或单元，或者包括与图7中的各个模块的功能相似的模块，或者并非要包括图7中所有模块。
图7所示的通信装置700可以包括接收模块710和通信模块720。其中，通信装置700包括的各个模块可以通过软件和/或硬件方式实现。
通信装置700可以用于执行图2所描述的通信方法中由终端设备执行的步骤。
例如，接收模块710用于从第一设备接收用于所述通信装置与所述第一设备之间进行MIMO通信的配置信息，所述配置信息携带在控制拖尾中。
通信模块720用于根据所述配置信息，与所述第一设备进行MIMO通信。
可选地，所述控制拖尾位于数据帧之后。
可选地，所述控制拖尾之后还有填充比特。
可选地，所述填充比特为训练序列。
可选地，所述配置信息包括以下至少一种信息：所述通信装置应向所述第一设备反馈的帧的类型，所述通信装置应通过所述帧向第一设备反馈的信息，天线个数，天线编号，扇区/波束编号，信道聚合指示，带宽，主信道编号，单输入单输出SISO/MIMO指示，单用户SU MIMO/多用户MU MIMO指示，分组的编号，所述第一设备的发送功率，目标接收信号强度指示，时间提前量，调制编码模式，信道分配信息/资源单元分配信息或空间流分配信息/随机接入资源单元信息。
可选地，该通信装置可以是网络设备，例如AP；或者，该通信装置可以是终端设备，例如STA；或者，该通信装置可以是能够集成在网络设备中的芯片，例如可以是能够集成在AP中的芯片；或者，该通信装置可以是能够集成在终端设备中的芯片，例如可以是能够集成在STA中的芯片。
图8是本申请一个实施例的通信装置的示意性结构图。应理解，图8示出的通信装置800仅是示例，本申请实施例的通信装置还可包括其他模块或单元，或者包括与图8中的各个模块的功能相似的模块，或者并非要包括图8中所有模块。
通信装置800包括处理器810，所述处理器用于执行程序指令。可选地，通信装置800还可以包括存储器，用于存储处理器执行的程序指令。
在一种可能的实现方式中，处理器810执行程序指令，以实现图2所描述的通信方法中由网络设备实现的操作。
例如，处理器执行程序指令时，可以实现：向一个或多个第二设备发送用于所述第二设备与所述通信装置之间进行多输入多输出MIMO通信的配置信息，所述配置信息携带在控制拖尾中；根据所述配置信息，与所述一个或多个第二设备进行MIMO通信。
可选地，所述控制拖尾位于数据帧之后。
可选地，所述控制拖尾之后还有填充比特。
可选地，所述填充比特为训练序列。
可选地，所述配置信息包括以下至少一种信息：所述第二设备应向所述通信装置反馈的帧的类型，所述第二设备应通过所述帧向所述通信装置反馈的信息，天线个数，天线编号，扇区/波束编号，信道聚合指示，带宽，主信道编号，单输入单输出SISO/MIMO指示，单用户SU MIMO/多用户MU MIMO指示，分组的编号，所述通信装置的发送功率，目标接收信号强度指示，时间提前量，调制编码模式，信道分配信息/资源单元分配信息或空间流分配信息/随机接入资源单元信息。
可选地，通信装置800可以是网络设备，例如可以是AP。这种情况下，通信装置800还可以包括接收器和发送器。其中，该发送器可以用于执行图2所述的通信方法中，由第一设备执行的“发送”步骤；该接收器和/或发送器可以用于执行图2所描述的通信方法中，由第一设备执行的“通信”步骤；
可选地，通信装置800可以是能够集成在网络设备中(例如AP)的芯片。这种情况下，通信装置800还可以包括通信接口，其中，通信接口用于执行图2所述的通信方法中，由第一设备执行的“发送”步骤和“通信”步骤。
可选地，通信装置800可以是终端设备，例如可以是STA。这种情况下，通信装置800还可以包括接收器和发送器。其中，该发送器可以用于执行图2所述的通信方法中，由第二设备执行的“发送”步骤；该接收器和/或发送器可以用于执行图2所描述的通信方法中，由第二设备执行的“通信”步骤；
可选地，通信装置800可以是能够集成在终端设备中(例如STA)的芯片。这种情况下，通信装置800还可以包括通信接口，其中，通信接口用于执行图2所述的通信方法中，由第二设备执行的“发送”步骤和“通信”步骤。
在另一种可能的实现方式中，处理器810用于执行程序指令，以实现图2所描述的通信方法中由终端设备实现的操作。
例如，处理器执行程序指令时，可以实现：从第一设备接收用于所述通信装置与所述第一设备之间进行MIMO通信的配置信息，所述配置信息携带在控制拖尾中；根据所述配置信息，与所述第一设备进行MIMO通信。
可选地，所述控制拖尾位于数据帧之后。
可选地，所述控制拖尾之后还有填充比特。
可选地，所述填充比特为训练序列。
可选地，所述配置信息包括以下至少一种信息：所述通信装置应向所述第一设备反馈的帧的类型，所述通信装置应通过所述帧向第一设备反馈的信息，天线个数，天线编号，扇区/波束编号，信道聚合指示，带宽，主信道编号，单输入单输出SISO/MIMO指示，单用户SU MIMO/多用户MU MIMO指示，分组的编号，所述第一设备的发送功率，目标接收信号强度指示，时间提前量，调制编码模式，信道分配信息/资源单元分配信息或空间流分配信息/随机接入资源单元信息。
可选地，通信装置800可以是终端设备，例如STA。这种情况下，通信装置800还可以包括接收器和发送器。其中，该接收器可以用于执行图2所描述的通信方法中，由第二设备执行的“接收”步骤；该发送器和/或接收器可以用于执行图2所述的通信方法中，由第 二设备执行的“通信”步骤。
可选地，通信装置800可以是能够集成在终端设备(例如STA)中的芯片。这种情况下，通信装置800还可以包括通信接口，其中，通信接口用于执行图2所述的通信方法中，由第二设备执行的“接收”步骤和“通信”步骤。
可选地，通信装置800可以是网络设备，例如可以是AP。这种情况下，通信装置800还可以包括接收器和发送器。其中，该发送器可以用于执行图2所述的通信方法中，由第一设备执行的“发送”步骤；该接收器和/或发送器可以用于执行图2所描述的通信方法中，由第一设备执行的“通信”步骤；
可选地，通信装置800可以是能够集成在网络设备中(例如AP)的芯片。这种情况下，通信装置800还可以包括通信接口，其中，通信接口用于执行图2所述的通信方法中，由第一设备执行的“发送”步骤和“通信”步骤。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
应理解，本申请实施例中的处理器可以为中央处理单元(central processing unit，CPU)，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现场可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计 算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
应理解，本申请中的“/”表示“或”的意思。其中“和/或”可以包括三种并列的方案。例如“A和/或B”可以包括：A，B，A和B。应理解，本申请中的“A或B”可以包括：A，B，A和B。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (14)

  1. 一种通信方法，其特征在于，包括：
    第一设备向一个或多个第二设备发送用于所述第二设备与所述第一设备之间进行多输入多输出MIMO通信的配置信息，所述配置信息携带在控制拖尾中；
    所述第一设备根据所述配置信息，与所述一个或多个第二设备进行MIMO通信。
  2. 一种通信方法，其特征在于，包括：
    第二设备从第一设备接收用于所述第二设备与所述第一设备之间进行MIMO通信的配置信息，所述配置信息携带在控制拖尾中；
    所述第二设备根据所述配置信息，与所述第一设备进行MIMO通信。
  3. 根据权利要求1或2所述的通信方法，其特征在于，所述控制拖尾位于数据帧之后。
  4. 根据权利要求3所述的通信方法，其特征在于，所述控制拖尾之后还有填充比特。
  5. 根据权利要求4所述的通信方法，其特征在于，所述填充比特为训练序列。
  6. 根据权利要求1至5中任一项所述的通信方法，其特征在于，所述配置信息包括以下信息中的至少一种：所述第二设备应向所述第一设备反馈的帧的类型，所述第二设备应通过所述帧向所述第一设备反馈的信息，天线个数，天线编号，扇区/波束编号，信道聚合指示，带宽，主信道编号，单输入单输出SISO/MIMO指示，单用户SU MIMO/多用户MU MIMO指示，分组的编号，所述第一设备的发送功率，目标接收信号强度指示，时间提前量，调制编码模式，信道分配信息/资源单元分配信息或空间流分配信息/随机接入资源单元信息。
  7. 一种通信装置，其特征在于，包括：
    发送模块，用于向一个或多个第二设备发送用于所述第二设备与所述通信装置之间进行多输入多输出MIMO通信的配置信息，所述配置信息携带在控制拖尾中；
    通信模块，用于根据所述配置信息，与所述一个或多个第二设备进行MIMO通信。
  8. 根据权利要求7所述的通信装置，其特征在于，所述配置信息包括以下信息中的至少一种：所述第二设备应向所述通信装置反馈的帧的类型，所述第二设备应通过所述帧向所述通信装置反馈的信息，天线个数，天线编号，扇区/波束编号，信道聚合指示，带宽，主信道编号，单输入单输出SISO/MIMO指示，单用户SU MIMO/多用户MU MIMO指示，分组的编号，所述通信装置的发送功率，目标接收信号强度指示，时间提前量，调制编码模式，信道分配信息/资源单元分配信息或空间流分配信息/随机接入资源单元信息。
  9. 一种通信装置，其特征在于，包括：
    接收模块，用于从第一设备接收用于所述通信装置与所述第一设备之间进行MIMO通信的配置信息，所述配置信息携带在控制拖尾中；
    通信模块，用于根据所述配置信息，与所述第一设备进行MIMO通信。
  10. 根据权利要求9所述的通信装置，其特征在于，所述配置信息包括以下信息中的至少一种：所述通信装置应向所述第一设备反馈的帧的类型，所述通信装置应通过所述帧向所述第一设备反馈的信息，天线个数，天线编号，扇区/波束编号，信道聚合指示，带 宽，主信道编号，单输入单输出SISO/MIMO指示，单用户SU MIMO/多用户MU MIMO指示，分组的编号，所述第一设备的发送功率，目标接收信号强度指示，时间提前量，调制编码模式，信道分配信息/资源单元分配信息或空间流分配信息/随机接入资源单元信息。
  11. 根据权利要求7至10中任一项所述的通信装置，其特征在于，所述控制拖尾位于数据帧之后。
  12. 根据权利要求11所述的通信装置，其特征在于，所述控制拖尾之后还有填充比特。
  13. 根据权利要求12所述的通信装置，其特征在于，所述填充比特为训练序列。
  14. 一种计算机存储介质，其特征在于，所述计算机可读存储介质中存储用于通信装置执行的程序代码，所述程序代码包括用于执行权利要求1至6中任一项所述的通信方法的指令。
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