WO2016145615A1 - 一种波束成形训练的实现方法、装置及设备 - Google Patents

一种波束成形训练的实现方法、装置及设备 Download PDF

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Publication number
WO2016145615A1
WO2016145615A1 PCT/CN2015/074410 CN2015074410W WO2016145615A1 WO 2016145615 A1 WO2016145615 A1 WO 2016145615A1 CN 2015074410 W CN2015074410 W CN 2015074410W WO 2016145615 A1 WO2016145615 A1 WO 2016145615A1
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ssw
channel
sta
period
frame
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PCT/CN2015/074410
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English (en)
French (fr)
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赵牧
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华为技术有限公司
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Priority to PCT/CN2015/074410 priority Critical patent/WO2016145615A1/zh
Publication of WO2016145615A1 publication Critical patent/WO2016145615A1/zh

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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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method, an apparatus, and a device for implementing beamforming training.
  • Beamforming training consists of multiple phases, and each phase can be performed in a specific one or more different channel access periods, which are present in the Beacon Interval.
  • the channel access period in the beacon interval includes: BTI (English full name: Beacon transmission interval, Chinese full name: beacon transmission interval), A-BFT (English full name: association beamforming training, Chinese full name: associated beamforming) Training), SP (English full name: service period, Chinese full name: service period).
  • RSS in English: full responder sector sweep
  • SSW Feedback English full name: sector sweep Feedback
  • the scan feedback phase is performed in the A-BFT.
  • Each A-BFT is divided into multiple equal length SSW slots (English full name: sector sweep slot, Chinese full name: sector scan time slot), each SSW slot is divided into two parts, the former part is used for The RSS phase, the latter part is used in the SSW Feedback phase.
  • the STAs that need to perform the RSS phase should send the SSW to the PCP/AP (English full name: personal basic service set control point/access point, Chinese full name: personal basic service set control point/access point).
  • each STA sends a specific number of SSW frames to complete the STA's RSS phase, in SSW Feedback
  • the PCP/AP sends an SSW Feedback frame to the STA that has completed the RSS phase.
  • the STA can perform the SSW Feedback phase after completing the RSS phase.
  • the time slot for the SSW feedback phase of the SSW slot is idle.
  • the STA may need multiple SSW slots or even multiple A-BFTs to complete the RSS phase, which will cause a large amount of time for the SSW Feedback phase to be idle, resulting in wasted channel resources.
  • Embodiments of the present invention provide a method, an apparatus, and a device for implementing beamforming training, which are used to alleviate the existing BF training process, because the RSS phase is occupied by multiple SSW slots, and the SSW Feedback phase must be completed after the RSS phase is completed. When it can be performed, the resource waste problem of the idle time in the SSW slot is caused.
  • a first aspect of the embodiments of the present invention provides a method for implementing beamforming training, where the method is applied to a basic service set BSS supporting a single channel or an aggregate channel, and the associated beamforming training A-BFT period is divided into one or more a sector scan slot SSW slot of equal length, the SSW slot includes: a period preset for the sector scan feedback SSW Feedback phase and a period preset for the response side sector scan RSS phase; the first station STA Any one of the STAs that can access the personal basic service set control point/access point PCP/AP; the second STA is capable of accessing the PCP/AP, and after the first STA completes the RSS phase, Starting the RSS phase or the STA that has not completed the RSS phase; the idle period includes: the preset period for the SSW Feedback phase and/or the preset period for the RSS phase;
  • the method includes:
  • the length of the period for the SSW Feedback phase, the length of the period for the RSS phase preset, and the number of SSW frames that can be transmitted during the period for the RSS phase And determining a first SSW frame number value, wherein the first SSW frame number value is used to represent a maximum number of SSW frames that can be sent in the SSWslot;
  • the PCP/AP sends an SSW Feedback frame to the first STA; and/or ,
  • the PCS/AP sends a second SSW frame quantity value to the second STA
  • the second SSW frame number value is used to indicate the number of SSW frames that the second STA can send in the idle period, and receive the SSW frame sent by the second STA.
  • an embodiment of the present invention provides a method for implementing beamforming training, where the method is applied to a basic service set BSS supporting multiple channels, and a personal basic service set control point/access point PCP/AP will be used for each channel.
  • the associated beamforming training A-BFT period is divided into the same number of equal-length sector scanning slots SSW slot, and all SSW slots are synchronized;
  • the method includes:
  • a station STA in the BSS determines a first channel, where the first channel is any one of multiple channels supported by the BSS;
  • the second channel is stopped listening.
  • an embodiment of the present invention provides an apparatus for implementing beamforming training, where the apparatus is applied to a basic service set BSS supporting a single channel or an aggregated channel, where the apparatus is placed in a personal basic service set control point/access Point PCP/AP, the device includes:
  • the SSW slot includes: a period preset for a sector scan feedback SSW Feedback phase and a period preset for a response sector sector scan RSS phase;
  • the first STA is Any one of the STAs that can access the PCP/AP;
  • the second STA is capable of accessing the PCP/AP, and after the first STA completes the RSS phase, the RSS phase has not been started or the RSS phase has not been completed.
  • the idle period includes: the period preset for the SSW Feedback phase and/or the period preset for the RSS phase;
  • an obtaining unit configured to acquire a length of the preset period used for the SSW Feedback phase, a length of the preset period for the RSS phase, and a sector scan that can be sent in the preset period for the RSS phase Number of SSW frames;
  • a determining unit configured to send, according to the length of the preset period for the SSW Feedback phase acquired by the acquiring unit, the length of the preset period for the RSS phase, and the time period for the RSS phase to be sent.
  • the number of SSW frames, the first SSW frame number value is determined, and the first SSW frame number value is used to represent the maximum number of SSW frames that can be sent in the SSW slot;
  • the sending unit is further configured to send, by the determining unit, the first SSW frame quantity value to all STAs that can access the PCP/AP;
  • the sending unit is configured to: when the first STA sends the last SSW frame, and the SSW slot where the last SSW frame is located, the SSW Feedback frame is sent to the first STA; and /or,
  • the sending unit is further configured to: when the first STA sends the last SSW frame, and the SSW slot where the last SSW frame is located, the second SSW frame is sent to the second STA. a quantity value, the second SSW frame number value is used to indicate a number of SSW frames that the second STA can send in the idle period;
  • a receiving unit configured to receive an SSW frame sent by the second STA.
  • an embodiment of the present invention provides an apparatus for implementing beamforming training, where the apparatus is applied to a basic service set BSS supporting multiple channels, and a personal basic service set control point/access point PCP/AP will be used for each channel.
  • Correlation beamforming training A-BFT period is divided into the same number of equal-length sector scan slots SSW slot, and all SSW slots are synchronized; the device is placed at the station STA;
  • the device includes:
  • a channel determining unit configured to determine a first channel, where the first channel is any one of multiple channels supported by the BSS;
  • a time slot determining unit configured to determine a first SSW slot on the first channel determined by the channel determining unit, and send a sector scan SSW frame to the PCP/AP on the first SSW slot;
  • a channel acquiring unit configured to acquire a second channel that sends a last SSW frame, where the first channel and the second channel are the same channel or different channels;
  • a monitoring unit configured to monitor the second channel acquired by the channel acquiring unit, and configured to stop listening when receiving a sector scan feedback SSW Feedback frame on the second channel acquired by the channel acquiring unit The second channel.
  • an apparatus for implementing beamforming training is provided, the device being applied to a basic service set BSS supporting a single channel or an aggregate channel, the device comprising:
  • a memory for storing information including program instructions
  • a processor coupled to the memory and the transceiver, respectively, for controlling execution of the program instructions, and for dividing the associated beamforming training A-BFT period into one or more sector scan slots SSW of equal length Slot
  • the SSW slot includes: a period preset for a sector scan feedback SSW Feedback phase and a period preset for a response side sector scan RSS phase;
  • the first station STA is capable of accessing a personal basic service set control point/connection Any STA of the ingress PCP/AP;
  • the second STA is a STA that can access the PCP/AP, and after the first STA completes the RSS phase, the STA has not started the RSS phase or has not completed the RSS phase;
  • the idle period includes: the period preset for the SSW Feedback phase and/or the period preset for the RSS phase;
  • the processor is further configured to acquire a length of the time period preset for the SSW Feedback phase, a length of the preset time period for the RSS phase, and a time period that can be sent in the preset time period for the RSS phase The number of sectors scanned for the SSW frame; and according to the length of the time period preset for the SSW Feedback phase, the length of the time period preset for the RSS phase, and the use in the RSS Determining a first SSW frame number value, the first SSW frame number value is used to represent the maximum number of SSW frames that can be sent in the SSW slot;
  • the transceiver is further configured to send the first SSW frame quantity value determined by the processor to all STAs that can access the PCP/AP;
  • the transceiver is configured to send an SSW Feedback frame to the first STA when the first STA sends the last SSW frame, and the SSW slot where the last SSW frame is located has the idle period; and Or, when the first STA sends the last SSW frame, and the idle time period exists in the SSW slot where the last SSW frame is located, sending a second SSW frame quantity value to the second STA,
  • the second SSW frame number value is used to indicate the number of SSW frames that the second STA can transmit in the idle period, and receive the SSW frame sent by the second STA.
  • an apparatus for implementing beamforming training is provided, the apparatus being applied to support a multi-channel basic service set BSS, and the personal basic service set control point/access point PCP/AP performs associated beamforming training for each channel
  • the A-BFT period is divided into the same number of equal-length sector scan slots SSW slot, and all SSW slots are synchronized; the device includes:
  • a memory for storing information including program instructions
  • a processor coupled to the memory and the transceiver, respectively, for controlling execution of the program instructions, and for determining a first channel; determining a first SSW slot on the first channel;
  • the transceiver is configured to send a sector scan SSW frame to the PCP/AP on the first SSW slot determined by the processor;
  • the first channel is any one of multiple channels supported by the BSS;
  • the processor is further configured to: acquire a second channel that sends a last SSW frame, and listen to the second channel; when receiving a sector scan feedback SSW Feedback frame on the second channel, stop listening to the The second channel, the first channel and the second channel are the same channel or different channels.
  • the method, device and device for implementing beamforming training provided by the embodiments of the present invention can be applied to BSS supporting single channel, aggregate channel or multiple channels (English full name: Basic) Service Set, the full name of Chinese: basic service set), when the BSS supports multiple channels, the PCP/AP configures the SSW slot on each channel and synchronizes the SSW slots, so that the STA can randomly select the channel to implement beamforming training.
  • BSS supporting single channel or an aggregated channel
  • the first STA and the second STA are allowed to make full use of these idle periods.
  • the SSW Feedback phase must be When the RSS phase is completed, the time period in the SSW slot is idle.
  • the technical solution provided by the embodiment of the present invention significantly alleviates the problem of resource waste caused by the existence of idle periods in the SSW slot.
  • 1-1 is a schematic diagram of an application scenario of a beamforming training method according to an embodiment of the present invention
  • FIG. 1 is a flowchart of another method for implementing beamforming training according to an embodiment of the present invention
  • 2-1 is a schematic structural diagram of a structure of an SSW slot in a channel for implementing beamforming training according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for implementing beamforming training according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a beamforming training implementation apparatus according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a beamforming training implementation apparatus according to another embodiment of the present invention.
  • FIG. 5 is a structural group of a beamforming training implementation device according to another embodiment of the present invention. Into the schematic.
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • FDMA Frequency Division Multiple Addressing
  • OFDMA Orthogonal Frequency-Division Multiple Access
  • SC-FDMA single carrier FDMA
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE Long Term Evolution
  • the user equipment may be a wireless terminal or a wired terminal, and the wireless terminal may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem.
  • the wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal
  • RAN Radio Access Network
  • the computers for example, can be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network.
  • a wireless terminal may also be called a system, a Subscriber Unit, a Station, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an access point. (Access Point), Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • PCS Personal Communication Service
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • a wireless terminal may also be called a system, a Subscriber Unit, a Station, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an access point. (Access Point), Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • a base station (e.g., an access point) can be a device in an access network that communicates with wireless terminals over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), the invention is not limited.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • the embodiment of the present invention may be applied to a WLAN (English full name: Wireless Local Area Network, full name in Chinese: wireless local area network), and the wireless local area network may include multiple BSSs, and the basic logical entity in the BSS is STA.
  • the BSS further includes: a PCP/AP, where the PCP/AP can be used to provide access services for STAs in the WLAN, and can also coordinate other STAs to access the wireless medium, and can manage and coordinate the STAs.
  • Each BSS includes one PCP/AP and one or more STAs associated with the PCP/AP.
  • the STA may be a wireless communication chip, a wireless sensor, or a wireless communication terminal.
  • the STA may be a wireless communication chip, a wireless sensor, or a wireless communication terminal.
  • the site can support the 802.11ax system.
  • the site supports multiple WLAN formats such as 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.
  • the application scenario of the embodiment of the present invention is shown in FIG. 1-1, and the application scenario includes: The PCP/AP and three STAs, the PCP/AP communicate with STA1, STA2, and STA3, respectively.
  • the STA may send an SSW frame to the PCP/AP
  • the PCP/AP may send an SSW Feedback frame or other message to the STA.
  • the PCP/AP can also associate more or fewer STAs and communicate with all associated STAs.
  • STA1 may be the first STA described below.
  • STA2 and/or STA3 may correspond to the second STA described below.
  • STA1 may be the first STA described below.
  • STA2 and/or STA3 may correspond to the second STA described below.
  • there may be other correspondences, which are not enumerated here.
  • a method for implementing beamforming training according to an embodiment of the present invention may be applied to a BSS supporting multiple channels or to a BSS supporting a single channel or an aggregate channel.
  • the embodiment of the present invention introduces two application scenarios: BSS supports multiple channels, and BSS supports single channel or aggregate channel.
  • the aggregation channel is a channel formed by a plurality of single channel aggregations, and the frequency band of the aggregation channel is wider than the frequency band of the single channel, and in this embodiment, for the aggregation channel
  • the application mode is the same as that applied to the single channel.
  • the aggregation mode of the aggregation channel can be the same as that of the existing aggregation carrier.
  • the embodiment of the present invention provides a new method for dividing the SSW slot, which can extend the implementation method of the beamforming training to multiple channels, and avoids waste of channel resources.
  • the length of the two time periods included in the SSW slot and the number of SSW frames that can be sent in the RSS period can be determined to be able to be sent during the SSW feedback period.
  • the number of SSW frames, and this determined value is notified to all STAs, thereby enabling the STA to transmit according to the received permission.
  • the number of SSW frames determines the number of SSW frames that should be sent in one SSW slot.
  • Another embodiment of the present invention provides a method for implementing beamforming training, which is applied to a scenario in which a BSS supports a single channel or an aggregate channel.
  • the PCP/AP divides the A-BFT period on the channel into One or more equal length SSW slots, each SSW slot includes: a preset period for the SSW Feedback phase and a preset period for the RSS phase, when the RSS phase is performed in the SSW slot and a preset exists in the SSW slot
  • the preset period for the SSW Feedback phase can be used for the RSS phase to transmit the SSW frame.
  • the method includes:
  • the PCP/AP acquires a length of a period preset for the SSW Feedback phase, a length of a period preset for the RSS phase, and a number of SSW frames that can be transmitted in a period preset for the RSS phase.
  • each SSW slot includes a time period preset for the RSS phase, a time period preset for the SSW Feedback phase, and The duration of the SSW frame is fixed, and the PCP/AP can obtain the above three types of information according to the local static configuration information.
  • the PCP/AP determines the first SSW frame according to the length of the time period preset for the SSW Feedback phase, the length of the time period preset for the RSS phase, and the number of SSW frames that can be sent in the preset time period for the RSS phase. Quantity value.
  • the first SSW frame number value is used to represent the maximum number of SSW frames that can be sent in the SSW slot.
  • the number of SSW frames that can be transmitted in the period preset for the RSS phase is known, and each transmission is known.
  • the length of the SSW frames is the same, and the number of SSW frames that can be sent in the entire SSW slot can be obtained by the scaling algorithm.
  • the specific representation of the first SSW frame number value is not limited, and the first frame number may be directly used to preset the SSW frame for the SSW Feedback phase.
  • the maximum value can also be the maximum value of the SSW frame that the entire SSW slot is allowed to send.
  • the first SSW frame number value is the maximum value of the SSW frame that is allowed to be transmitted in the time period preset for the SSW Feedback phase, since the SSW frame value that is allowed to be transmitted in the period of the preset RSS phase is known, the first The SSW frame number value and the number of SSW frames allowed to be transmitted in the known preset period for the RSS phase, and the maximum number of SSW frames that can be transmitted in the obtained SSW slot.
  • the first SSW frame number value can be a constant value.
  • the PCP/AP sends the first SSW frame quantity value to the STA.
  • the STA described in this step 103 is a set concept, including all STAs capable of accessing the PCP/AP.
  • the STA may be notified in the form of a broadcast in a domain or a subdomain of the beacon frame before the STA sends the SSW frame. . Further, after the value is notified to the STA, the STA that receives the value can determine how many SSW frames are sent in the SSW slot that it contends.
  • the PCS/AP can send the SSW according to the length of the period preset in the SSW slot for the RSS phase, the length of the period preset for the SSW Feedback phase, and the preset period for the RSS phase.
  • the number of frames determines a first SSW frame number value, and the first SSW frame number value is sent to the STA, the first SSW frame number value being used to characterize the maximum number of SSW frames that can be transmitted during the SSW feedback period.
  • the number of SSW frames sent by the STA in one SSW slot is only the number of SSW frames allowed to be sent in the period of the preset for the RSS phase, and the SSW Feedback phase of the STA is performed after the completion of the RSS phase, STA When the RSS phase cannot be completed in the SSW slot, it will result in waste of SSW Feedback time resources in the SSW slot.
  • the PCP/AP will instruct the STA to notify the STA of the number of SSW frames that can be sent in the entire SSW slot, so that the STA can select how many SSW frames to be sent in the SSW slot according to the number of frames, so that the STA When sending an SSW frame, not only the time period preset for the RSS phase is considered, but the resource waste of the idle period in the SSW slot is significantly reduced.
  • the PCP/AP sends an SSW Feedback frame to the first STA.
  • the first STA is any STA that can access the PCP/AP
  • the idle period includes: preset a period for the SSW Feedback phase and/or preset a period for the RSS phase.
  • the PCP/AP sends the second SSW frame quantity value to the second STA.
  • the second SSW frame number value is used to indicate the number of SSW frames that the second STA can send in the idle period.
  • the second STA is an STA that can access the PCP/AP and has not started the RSS phase or has not completed the RSS phase after the first STA completes the RSS phase.
  • the description may be based on the device characteristics of the STA.
  • the STA needs to send M SSW frames to complete the RSS phase.
  • the network or PCP/AP specifies that each SSW slot can send up to N SSW frames.
  • M is not an integer multiple of N, the STA cannot fully utilize the SSW slot to complete the RSS.
  • the idle period herein includes a time period preset for the RSS phase and/or a time period preset for the SSW Feedback phase.
  • the idle time period may be used to transmit the SSW Feedback frame of the first STA, or the idle time period may be used to send the SSW frame of the second STA, or the idle time period may be used to send the SSW Feedback frame of the first STA and the first The SSW frame of the second STA.
  • the PCP/AP before performing step 104-03, the PCP/AP first divides the A-BFT period on the channel into one or more SSW slots of equal length.
  • the execution flow described in the above steps 104-106 is two aspects including parallel execution, the first aspect includes step 104, and the second aspect includes steps 105, 106.
  • An embodiment of the present invention provides a method for implementing beamforming training, where the method is applied to a scenario where a BSS supports a single channel or an aggregate channel, when the first STA sends the last SSW frame, and the last SSW
  • the PCP/AP can In this idle period, the SSW Feedback frame is sent to the first STA; the PCP/AP may also send the second SSW frame number value to the second STA, thereby receiving the SSW frame sent by the second STA in the idle period.
  • the SSW Feedback phase must be completed after the RSS phase is completed. When the RSS phase of the STA is not completed, the idle time period in the SSW slot is unavailable.
  • the embodiment of the present invention fully utilizes the SSW slot. The idle period significantly reduces the waste of resources in idle periods in the SSW slot.
  • STA 1 needs to send 8 SSW frames to complete its RSS phase
  • STA 2 needs to send 16 SSW frames to complete its RSS phase.
  • the PCP/AP specifies that the STA can transmit up to 6 SSW frames in each SSW slot. That is, STA 1 and STA 2 compete for access to each SSW slot to send SSW frames, and STAs that compete for SSW slot success can send up to 6 SSW frames.
  • the A-BFT period includes 8 SSW slots as an example.
  • STA 1 competes for the first SSW slot, and sends 6 SSW frames in the first SSW slot. Then, STA1 needs to send 2 more SSW frames to complete the RSS phase. STA 2 competes successfully.
  • the second SSW slot sends 6 SSW frames in the second SSW slot, and 10 SSW frames need to be sent; STA 1 competes for the third SSW slot, and sends 2 slots in the third SSW slot.
  • the SSW slot also has an idle period for the STA to send 4 SSW frames.
  • the PCP/AP instructs the STA 2 to directly access the channel through the command frame and transmits 4 or less number of SSW frames by using the idle period, and when transmitting the command frame, the PCP/AP informs the STA2 that the The number of SSW frames that can be transmitted in the third SSW slot, that is, the second SSW frame number value described above.
  • the PCP/AP first sends an SSW Feedback frame to the STA 1, and then instructs the STA 2 to directly access the channel to send 4 or fewer SSW frames through the command frame, and when sending the command frame, the PCP/AP informs the STA2.
  • the number of SSW frames that can be transmitted in the third SSW slot that is, the second SSW frame number value described above.
  • the PCP/AP can determine whether the number of SSW frames that STA 2 can transmit according to whether the SSW feedback period in the third SSW slot can be used.
  • the BSS can support multiple channels, but the beamforming training technology in the prior art is only applicable to the scenario where the BSS supports a single channel, so that if the BSS supports multiple channels, if the existing beam continues to be used
  • the implementation of the shaping training can only be implemented on a single channel, so that the remaining channel resources supported by the BSS are wasted.
  • the embodiment of the present invention provides a method for implementing channel beamforming training, which can be applied to support multiple channels. BSS.
  • the SSW slot division of the channels supported by the BSSs is first required: the A-BFT periods of each channel supported by the BSS are all divided into the same number and the like. Long SSW slot, and the SSW slots of all channels are synchronized.
  • Figure 2-1 the scenario after the SSW slot synchronization on each channel is described by the following figures, as shown in Figure 2-1, which is schematically depicted in the figure.
  • the BBS supports three channels, Channel 1, Channel 2, and Channel 3, respectively, and shown in Figure 2-1 is the A-BFT channel access period on each channel, and each A-BFT channel is connected.
  • the entry period includes n (n is a positive integer) SSW slots, and each SSW slot includes two periods of RSS and SSW Feedback, because all SSW slots on the channel are formed in the same form, so in the figure, only in each channel Three SSW slots are shown, which are divided into first, second and nth SSW slots.
  • the STA in the BSS is executed. As shown in FIG. 2, the execution process includes:
  • the STA determines the first channel.
  • the first channel is any one of the multiple channels supported by the BSS.
  • the specific operation process involved in the step 202 includes:
  • Step 1 The STA randomly selects an integer from [0, A-BFT Length-1] as its own backoff count, and randomly selects a channel.
  • the length of the A-BFT (in units of the SSW slot) is announced by the value of the A-BFT Length field, that is, the A-BFT Length.
  • the synchronization is performed.
  • the inclusion of n SSW slots in one A-BFT period, the A-BFT Length is n.
  • the STA initiates a random backoff procedure to transmit the SSW frame on the selected channel using the selected backoff count.
  • the second step describes that the STA selects the first SSW slot on the first channel, and the backoff count determined in the first step of the first SSW slot is determined, for example, as shown in Figure 2-1. If the value of n is 8, the length of the A-BFT period is 8. When the determined backoff count is 2, the STA sends the SSW to the PCP/AP in the third SSW slot (the SSW slot count starts from 0). frame.
  • the STA needs to send a certain number of SSW frames to the PCP/AP in order to complete the RSS phase.
  • the STA may cross multiple channels, multiple SSW slots or multiple A- to complete the RRS phase. BFT.
  • the second channel involved in the step 203 and the first channel are all channels supported by the BSS, and the two channels are the same channel or different channels.
  • this step 204 it is indicated whether the STA receives the SSW Feedback frame on the channel on which the STA transmits the last SSW frame.
  • the second channel is stopped.
  • the second channel monitored and the first channel transmitting the SSW frame may be different channels, that is, the beamforming training of the same STA may be implemented on different channels.
  • sending an SSW frame, listening to the SSW slot that sends the last SSW frame, and transmitting the SSW Feedback frame are all performed on the same channel.
  • the BSS will work on multiple channels at the same time. If the implementation method of the beamforming training in the prior art is continued, only one channel can be applied when the BSS supports multiple channels. Causes waste of other channel resources.
  • An embodiment of the present invention provides a method for implementing beamforming training, which is applied to a BSS supporting multiple channels.
  • the A-BFT on all channels is divided into the same number and equal length SSW slots by the PCP/AP in the BSS.
  • the STAs in the BSS arbitrarily select one channel from the plurality of channels, and determine the first SSW slot in the selected channel, and send the SSW frame on the first SSW slot, and
  • the channel that sent the last SSW frame listens on whether to receive the SSW Feedback frame, and stops receiving the channel when receiving the SSW Feedback frame.
  • the transmission of the SSW frame, the monitoring of the SSW Feedback frame, and the transmission of the SSW Feedback frame can only be performed on the same channel.
  • the BSS supports multiple channels, it can be on multiple channels.
  • the beamforming training is implemented, and the channel resources are fully utilized, which avoids the problem of channel resource waste caused by the existing beamforming training implementation when the BSS supports multiple channels.
  • Another embodiment of the present invention provides a device for implementing beamforming training, which is applied to a BSS supporting a single channel or an aggregate channel, and the device is placed in a PCP/AP.
  • the device includes: The time division unit 31, the transmission unit 32, the reception unit 33, the acquisition unit 34, and the determination unit 35.
  • the time division unit 31 is configured to divide the A-BFT period into one or more equal length SSW slots.
  • the SSW slot includes: a time period preset for the SSW Feedback phase and a time period preset for the RSS phase.
  • the first STA, the second STA, and the idle period may be involved in the execution of this embodiment.
  • the first STA is any STA that can access the PCP/AP.
  • the idle period includes: a time period preset for the SSW Feedback phase and/or a time period preset for the RSS phase.
  • the second STA is an STA that can access the PCP/AP and has not started the RSS phase or has not completed the RSS phase after the first STA completes the RSS phase.
  • the obtaining unit 34 is configured to acquire, before the first STA sends the SSW frame, the length of the time period preset for the SSW Feedback phase, the length of the time period preset for the RSS phase, and the preset The number of SSW frames that can be sent during the RSS phase.
  • the determining unit 35 is configured to determine, according to the length of the preset period for the SSW Feedback phase acquired by the obtaining unit 34, the length of the period for the RSS phase preset, and the number of SSW frames that can be sent in the period for the RSS phase.
  • the first SSW frame number value is configured to determine, according to the length of the preset period for the SSW Feedback phase acquired by the obtaining unit 34, the length of the period for the RSS phase preset, and the number of SSW frames that can be sent in the period for the RSS phase. The first SSW frame number value.
  • the first SSW frame number value is used to represent the maximum number of SSW frames that can be sent in the SSW slot.
  • the sending unit 32 is further configured to send the first SSW frame quantity value determined by the determining unit 35 to all STAs capable of accessing the PCP/AP; and is further configured to: when the first STA sends the last SSW frame, and the last SSW frame When the SSW slot is in the idle period, the SSW feedback frame is sent to the first STA, and is also used when the first STA sends the last SSW frame, and the SSW slot where the last SSW frame is located has an idle period, and then goes to the second STA. Send a second SSW frame number value.
  • the second SSW frame number value is used to indicate the number of SSW frames that the second STA can send in the idle period.
  • the receiving unit 33 is configured to receive the SSW frame sent by the second STA.
  • the function of the transmitting unit 32 and the receiving unit 33 is applied on the basis that the application time slot dividing unit 31 implements the corresponding function, and the receiving unit 33 is the first in the transmitting unit 32. After the frame number value is sent to the second STA, the SSW frame sent by the second STA can be received.
  • An embodiment of the present invention provides an apparatus for implementing beamforming training.
  • the method is applied to a scenario in which a BSS supports a single channel or an aggregate channel, when the first STA sends the last SSW frame, and the last SSW.
  • the sending unit may send the SSW Feedback frame to the first STA in the idle period; and may also send the second SSW frame number to the second STA, and then receive the second STA in the idle period.
  • the SSW frame sent.
  • the SSW Feedback phase must be completed after the RSS phase is completed.
  • the idle phase of the SSW slot is not available, the idle time period in the SSW slot is fully utilized in the SSW slot, which significantly reduces the waste of idle time resources in the SSW slot.
  • Another embodiment of the present invention provides an apparatus for implementing beamforming training, which is applied to a BSS supporting multiple channels, and a PCP/AP in a BBS divides an A-BFT period of each channel into a same number of equal length SSWs. Slot, and all SSW slots are synchronized, and the device is placed in the STA in the BBS.
  • this apparatus includes a channel determining unit 41, a slot determining unit 42, a channel acquiring unit 43, and a listening unit 44.
  • the channel determining unit 41 is configured to determine the first channel.
  • the first channel is any one of the multiple channels supported by the BSS.
  • the time slot determining unit 42 is configured to determine a first SSW slot on the first channel determined by the channel determining unit 41, and send an SSW frame to the PCP/AP on the first SSW slot.
  • the channel obtaining unit 43 is configured to acquire a second channel that sends the last SSW frame.
  • the monitoring unit 44 is configured to monitor the second channel acquired by the channel acquiring unit 43; and is further configured to stop listening to the second channel when receiving the SSW Feedback frame on the second channel acquired by the channel acquiring unit 43.
  • the first channel is the same as or different from the second channel, and the second channel is a channel in multiple channels supported by the BSS.
  • FIG. 4 can be used to implement the method flow shown in FIG. 2.
  • FIG. 4 For convenience of description, only parts related to the embodiment of the present invention are shown, and specific technical details are not disclosed, please refer to The related content description of each embodiment of the present invention shown in the above drawings.
  • An apparatus for implementing beamforming training according to an embodiment of the present invention is applied to a BSS supporting multiple channels.
  • the A-BFT on all channels is divided into the same number and the same length of the SSW slot by the PCP/AP in the BSS.
  • the STAs in the BSS arbitrarily select one channel from the plurality of channels through the channel determining unit, and determine the first SSW slot in the selected channel by the slot determining unit, where the first The SSW frame is sent on the SSW slot, and then the SSM is used to monitor whether the SSW is received on the channel that sends the last SSW frame.
  • Frame when receiving an SSW Feedback frame, stops listening to the channel.
  • the transmission of the SSW frame, the monitoring of the SSW Feedback frame, and the transmission of the SSW Feedback frame can only be performed on the same channel.
  • the BSS when the BSS supports multiple channels, it can be on multiple channels.
  • the beamforming training is implemented, and the channel resources are fully utilized, which avoids the problem of channel resource waste caused by the existing beamforming training implementation when the BSS supports multiple channels.
  • the device includes: a memory 51, a processor 52, and a transceiver 53.
  • the memory 51, the processor 52, and the transceiver 53 are connected by a bus 54 to perform data transmission with each other.
  • the memory 51 may be a read only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM).
  • the memory 51 can store an operating system and other applications.
  • the program code for implementing the technical solution provided by the embodiment of the present invention is stored in the memory 51 and executed by the processor 52 when the technical solution provided by the embodiment of the present invention is implemented by software or firmware.
  • the processor 52 can be a general-purpose central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits for executing related programs.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • the transceiver 53 is used for communication between the device and other devices or communication networks such as, but not limited to, Ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), and the like.
  • RAN Radio Access Network
  • WLAN Wireless Local Area Network
  • Bus 54 may include a path for communicating information between various components of the device (e.g., memory 51, processor 52, transceiver 53).
  • FIG. 5 only shows the memory 51, the processor 52, the transceiver 53, and the bus 54, in the specific implementation process, those skilled in the art should understand that the device also includes the normal operation. Other devices necessary. At the same time, those skilled in the art will appreciate that hardware devices that implement other functions may also be included, depending on the particular needs.
  • the memory 51 is configured to store information including program instructions.
  • the processor 52 is coupled to the memory 51 and the transceiver 53, respectively, for controlling the execution of program instructions, and is further configured to divide the A-BFT period into one or more equal length SSW slots.
  • the SSW slot includes: a time period preset for the SSW Feedback phase and a time period preset for the RSS phase.
  • the first STA, the idle period, and the second STA are involved, where the first STA is any STA that can access the PCP/AP, and the idle period includes: preset for SSW Feedback. a period of the phase and/or a time period preset for the RSS phase; the second STA is a STA that is capable of accessing the PCP/AP and has not started the RSS phase or has not completed the RSS phase after the first STA completes the RSS phase .
  • the processor 52 is further configured to acquire a length of a period preset for the SSW Feedback stage, a length of a period preset for the RSS stage, and a number of SSW frames that can be sent in a period preset for the RSS stage;
  • the first SSW frame number value is determined by the length of the time period for the SSW Feedback phase, the length of the time period preset for the RSS phase, and the number of SSW frames that can be transmitted during the time period for the RSS phase.
  • the first SSW frame number value is used to represent the maximum number of SSW frames that can be sent in the SSW slot.
  • the transceiver 53 is further configured to send the first SSW frame number determined by the processor 52 to all STAs capable of accessing the PCP/AP.
  • the transceiver 53 is configured to: when the first STA sends the last SSW frame, and the SSW slot where the last SSW frame is located, the SSW Feedback frame is sent to the first STA; and may be used when the first STA sends When the last SSW frame is completed, and the SSW slot where the last SSW frame is located has an idle period, the second SSW frame number value is sent to the second STA, and the SSW frame sent by the second STA is received.
  • the second SSW frame number value is used to indicate the number of SSW frames that the second STA can send in the idle period.
  • the device for implementing beamforming training shown in FIG. 5 may be PCP/AP.
  • the embodiment shown in FIG. 5 can be used to implement the method flow shown in FIG. 1 above.
  • An apparatus for implementing beamforming training where the device is applied to a scenario in which a BSS supports a single channel or an aggregate channel, when the first STA sends the last SSW frame, and the last SSW
  • the transceiver can send the SSW Feedback frame to the first STA in the idle period, and can also send the second SSW frame number to the second STA, and then receive the second STA in the idle period.
  • the SSW frame sent.
  • the SSW Feedback phase must be completed after the RSS phase is completed.
  • the idle time period in the SSW slot is unavailable.
  • the embodiment of the present invention fully utilizes the SSW slot. The idle period significantly reduces the waste of idle time resources in the SSW slot.
  • Another embodiment of the present invention provides an apparatus for implementing beamforming training, which is applied to a BSS supporting multiple channels, and the PCP/AP divides the A-BFT period of each channel into equal-length sectors of the same length.
  • the SSW slot is synchronized, and all the SSW slots are synchronized;
  • the device includes: a memory 61, a processor 62, and a transceiver 63, and the memory 61, the processor 62, and the transceiver 63 are connected by a bus 64, and data transmission is possible.
  • the connection configuration of the memory 61, the processor 62, the transceiver 63, and the bus 64 respectively corresponds to the memory 51, the processor 52, the transceiver 53, and the bus 54 as shown in FIG.
  • connection configuration of the memory 61, the processor 62, the transceiver 63, and the bus 64 is the same as that of the connection shown in FIG. 5, and the structural composition diagram shown in FIG. 5 can be directly used, as long as the corresponding device number is changed. can.
  • the memory 61 is configured to store information including program instructions.
  • the processor 62 is coupled to the memory and the transceiver, respectively, for controlling execution of the program instructions, and for determining the first channel; determining the first SSW slot on the first channel.
  • the transceiver 63 is configured to send an SSW frame to the PCP/AP on the first SSW slot determined by the processor 62.
  • the first channel is any one of the multiple channels supported by the BSS.
  • the processor 62 is further configured to acquire a second channel that sends the last SSW frame and listen to the second channel; when receiving the SSW Feedback frame on the second channel, stop listening to the second channel.
  • the first channel is the same as or different from the second channel, and the second channel is a channel in multiple channels supported by the BSS.
  • the implementation device of the beamforming training constituted by the memory 61, the processor 62, the transceiver 63, and the bus 64 in the form shown in FIG. 5 may be any one that accesses the PCP/AP.
  • a STA the device shown in this embodiment, can be used to implement the method flow shown in FIG. 2 above.
  • An embodiment of the present invention provides an apparatus for implementing beamforming training, which is applied to a BSS supporting multiple channels.
  • the A-BFT on all channels is divided into the same number and equal length SSW slots by the PCP/AP in the BSS. Synchronizing the SSW slots, selecting a channel from the plurality of channels by the processor, and determining the first SSW slot in the selected channel, and transmitting the SSW frame on the first SSW slot through the transceiver, And monitoring whether the SSW Feedback frame is received on the channel that sends the last SSW frame, and stops listening to the channel when receiving the SSW Feedback frame.
  • the transmission of the SSW frame, the monitoring of the SSW Feedback frame, and the transmission of the SSW Feedback frame can only be performed on the same channel.
  • the BSS when the BSS supports multiple channels, it can be on multiple channels.
  • the beamforming training is implemented, and the channel resources are fully utilized, which avoids the problem of channel resource waste caused by the existing beamforming training implementation when the BSS supports multiple channels.
  • the disclosed system, device And methods can be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • 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, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本发明实施例公开了一种波束成形训练的实现方法、装置及设备，涉及无线通信技术领域，显著缓解了由于SSW slot中存在空闲时段时导致的资源浪费问题。具体方案为：当BSS支持多信道时，PCP/AP配置每个信道上的SSW slot，并使SSW slot同步，使得STA能够随机选择信道实现波束成形训练。当BSS支持单信道或者聚合信道时，当SSW slot中存在空闲时段时，允许第一STA和第二STA来充分利用这些空闲时段。本发明用于BF training实现过程中。

Description

一种波束成形训练的实现方法、装置及设备 技术领域
本发明涉及无线通信技术领域，尤其涉及一种波束成形训练的实现方法、装置及设备。
背景技术
目前，不同站点STA(Station)想要使用频带资源时，需要先进行BF training(英文全称为：Beamforming training，中文全称为：波束成形训练)，以找到合适的发送和/或接收通信数据的天线模式，进而使用这一合适的天线模式完成STA间的通信。Beamforming training包含多个阶段，且每个阶段可在特定的一个或多个不同的信道接入时段中进行，这些信道接入时段存在于信标间隔(Beacon Interval)内。信标间隔内的信道接入时段包括：BTI(英文全称为：Beacon transmission interval，中文全称为：信标发送间隔)、A-BFT(英文全称为：association beamforming training，中文全称为：关联波束成形训练)、SP(英文全称为：service period，中文全称为：服务时段)等。
在波束成形训练过程中，BF training中的RSS(英文全称为：responder sector sweep，中文全称为：响应方扇区扫描)阶段和SSW Feedback(英文全称为：sector sweep Feedback，中文全称为：扇区扫描反馈)阶段在A-BFT中进行。每个A-BFT被划分为多个等长的SSW slot(英文全称为：sector sweep slot，中文全称为：扇区扫描时隙)，每个SSW slot又被分为两部分，前一部分用于RSS阶段，后一部分用于SSW Feedback阶段。在RSS阶段，需要进行RSS阶段的STA要向PCP/AP(英文全称为：personal basic service set control point/access point，中文全称为：个人基本服务集控制点/接入点)发送SSW(英文全称为：sector sweep，中文全称为：扇区扫描)帧，每个STA发送特定数量的SSW帧以完成该STA的RSS阶段，在SSW Feedback  阶段，PCP/AP向已完成RSS阶段的STA发送SSW Feedback帧。在波束成形训练的实际实现过程中，STA在完成RSS阶段后，才能进行SSW Feedback阶段，在当前SSW slot中没有已完成RSS阶段的STA时，SSW slot的用于SSW Feedback阶段的时段空闲，而有时STA可能需要多个SSW slot甚至多个A-BFT才能完成RSS阶段，这样就会造成大量的用于SSW Feedback阶段的时段空闲，从而导致信道资源浪费。
发明内容
本发明的实施例提供一种波束成形训练的实现方法、装置及设备，用于缓解现有BF training过程中，由于进行RSS阶段占用多个SSW slot，而SSW Feedback阶段必须要在RSS阶段完成后才能进行时，导致的SSW slot中空闲时段的资源浪费问题。
为达到上述目的，本发明的实施例采用如下技术方案：
本发明实施例的第一方面，提供一种波束成形训练的实现方法，所述方法应用于支持单信道或聚合信道的基本服务集BSS，将关联波束成形训练A-BFT时段划分为一个或多个等长的扇区扫描时隙SSW slot，所述SSW slot包括：预设用于扇区扫描反馈SSW Feedback阶段的时段和预设用于响应方扇区扫描RSS阶段的时段；第一站点STA为能够接入个人基本服务集控制点/接入点PCP/AP的任意一个STA；第二STA为，能够接入所述PCP/AP，且在所述第一STA完成RSS阶段后，还未开始RSS阶段或者还未完成RSS阶段的STA；空闲时段包括：所述预设用于SSW Feedback阶段的时段和/或所述预设用于RSS阶段的时段；
所述方法包括：
所述PCP/AP获取所述预设用于SSW Feedback阶段的时段的长度、所述预设用于RSS阶段的时段的长度和在所述预设用于RSS阶段的时段能够发送的扇区扫描SSW帧数量；
根据所述预设用于SSW Feedback阶段的时段的长度、所述预设用于RSS阶段的时段的长度和在所述用于RSS阶段的时段能够发送的SSW帧数 量，确定第一SSW帧数量值，所述第一SSW帧数量值用于表征在所述SSWslot中能够发送的最大SSW帧数量；
将所述第一SSW帧数量值发送给所有能够接入所述PCP/AP的STA；
当所述第一STA发送完最后一个SSW帧，且所述最后一个SSW帧所在的SSW slot存在所述空闲时段时，所述PCP/AP向所述第一STA发送SSW Feedback帧；和/或，
当所述第一STA发送完最后一个SSW帧，且所述最后一个SSW帧所在的SSW slot存在所述空闲时段时，所述PCP/AP向所述第二STA发送第二SSW帧数量值，所述第二SSW帧数量值用于指示所述第二STA在所述空闲时段中能够发送的SSW帧数量，并接收所述第二STA发送的SSW帧。
第二方面，本发明实施例提供了一种波束成形训练的实现方法，所述方法应用于支持多信道的基本服务集BSS，个人基本服务集控制点/接入点PCP/AP将每个信道的关联波束成形训练A-BFT时段划分为数量相同的等长扇区扫描时隙SSW slot，且所有SSW slot同步；
所述方法包括：
所述BSS中的站点STA确定第一信道，所述第一信道为所述BSS支持的多信道中任意一个信道；
在所述第一信道上确定第一SSW slot，并在所述第一SSW slot上向PCP/AP发送扇区扫描SSW帧；
获取发送最后一个SSW帧的第二信道，并监听所述第二信道，所述第一信道与所述第二信道为同一信道或者不同信道；
当在所述第二信道上接收到扇区扫描反馈SSW Feedback帧时，停止监听所述第二信道。
第三方面，本发明实施例提供了一种波束成形训练的实现装置，所述装置应用于支持单信道或聚合信道的基本服务集BSS，所述装置置于个人基本服务集控制点/接入点PCP/AP，所述装置包括：
时段划分单元，用于将关联波束成形训练A-BFT时段划分为一个或多 个等长的扇区扫描时隙SSW slot，所述SSW slot包括：预设用于扇区扫描反馈SSW Feedback阶段的时段和预设用于响应方扇区扫描RSS阶段的时段；第一STA为能够接入所述PCP/AP的任意一个STA；第二STA为，能够接入所述PCP/AP，且在所述第一STA完成RSS阶段后，还未开始RSS阶段或者还未完成RSS阶段的STA；空闲时段包括：所述预设用于SSW Feedback阶段的时段和/或所述预设用于RSS阶段的时段；
获取单元，用于获取所述预设用于SSW Feedback阶段的时段的长度、所述预设用于RSS阶段的时段的长度和在所述预设用于RSS阶段的时段能够发送的扇区扫描SSW帧数量；
确定单元，用于根据所述获取单元获取的所述预设用于SSW Feedback阶段的时段的长度、所述预设用于RSS阶段的时段的长度和在所述用于RSS阶段的时段能够发送的SSW帧数量，确定第一SSW帧数量值，所述第一SSW帧数量值用于表征在所述SSW slot中能够发送的最大SSW帧数量；
发送单元，还用于将所述确定单元确定的所述第一SSW帧数量值发送给所有能够接入所述PCP/AP的STA；
所述发送单元，用于当所述第一STA发送完最后一个SSW帧，且所述最后一个SSW帧所在的SSW slot存在所述空闲时段时，向所述第一STA发送SSW Feedback帧；和/或，
所述发送单元，还用于当所述第一STA发送完最后一个SSW帧，且所述最后一个SSW帧所在的SSW slot存在所述空闲时段时，向所述第二STA发送第二SSW帧数量值，所述第二SSW帧数量值用于指示所述第二STA在所述空闲时段中能够发送的SSW帧数量；
接收单元，用于接收所述第二STA发送的SSW帧。
第四方面，本发明实施例提供了一种波束成形训练的实现装置，所述装置应用于支持多信道的基本服务集BSS，个人基本服务集控制点/接入点PCP/AP将每个信道的关联波束成形训练A-BFT时段划分为数量相同的等长扇区扫描时隙SSW slot，且所有SSW slot同步；所述装置置于站点STA；
所述装置包括：
信道确定单元，用于确定第一信道，所述第一信道为所述BSS支持的多信道中任意一个信道；
时隙确定单元，用于在所述信道确定单元确定的所述第一信道上确定第一SSW slot，并在所述第一SSW slot上向所述PCP/AP发送扇区扫描SSW帧；
信道获取单元，用于获取发送最后一个SSW帧的第二信道，所述第一信道与所述第二信道为同一信道或者不同信道；；
监听单元，用于监听所述信道获取单元获取的所述第二信道；还用于当在所述信道获取单元获取的所述第二信道上接收到扇区扫描反馈SSW Feedback帧时，停止监听所述第二信道。
第五方面，提供了一种波束成形训练的实现设备，所述设备应用于支持单信道或聚合信道的基本服务集BSS，所述设备包括：
存储器，用于存储包括程序指令的信息；
处理器，分别与所述存储器和收发器耦合，用于控制所述程序指令的执行，还用于将关联波束成形训练A-BFT时段划分为一个或多个等长的扇区扫描时隙SSW slot；
所述SSW slot包括：预设用于扇区扫描反馈SSW Feedback阶段的时段和预设用于响应方扇区扫描RSS阶段的时段；第一站点STA为能够接入个人基本服务集控制点/接入点PCP/AP的任意一个STA；第二STA为，能够接入所述PCP/AP，且在所述第一STA完成RSS阶段后，还未开始RSS阶段或者还未完成RSS阶段的STA；空闲时段包括：所述预设用于SSW Feedback阶段的时段和/或所述预设用于RSS阶段的时段；
所述处理器，还用于获取所述预设用于SSW Feedback阶段的时段的长度、所述预设用于RSS阶段的时段的长度和在所述预设用于RSS阶段的时段能够发送的扇区扫描SSW帧数量；并根据所述预设用于SSW Feedback阶段的时段的长度、所述预设用于RSS阶段的时段的长度和在所述用于RSS 阶段的时段能够发送的SSW帧数量，确定第一SSW帧数量值，所述第一SSW帧数量值用于表征在所述SSW slot中能够发送的最大SSW帧数量；
所述收发器，还用于将所述处理器确定的所述第一SSW帧数量值发送给所有能够接入所述PCP/AP的STA；
所述收发器，用于在所述第一STA发送完最后一个SSW帧，且所述最后一个SSW帧所在的SSW slot存在所述空闲时段时，向所述第一STA发送SSW Feedback帧；和/或，当所述第一STA发送完最后一个SSW帧，且所述最后一个SSW帧所在的SSW slot存在所述空闲时段时，向所述第二STA发送第二SSW帧数量值，所述第二SSW帧数量值用于指示所述第二STA在所述空闲时段中能够发送的SSW帧数量，并接收所述第二STA发送的SSW帧。
第六方面，提供了一种波束成形训练的实现设备，所述设备应用于支持多信道基本服务集BSS，个人基本服务集控制点/接入点PCP/AP将每个信道的关联波束成形训练A-BFT时段划分为数量相同的等长扇区扫描时隙SSW slot，且所有SSW slot同步；所述设备包括：
存储器，用于存储包括程序指令的信息；
处理器，分别与所述存储器和收发器耦合，用于控制所述程序指令的执行，还用于确定第一信道；在所述第一信道上确定第一SSW slot；
所述收发器，用于在所述处理器确定的所述第一SSW slot上向PCP/AP发送扇区扫描SSW帧；
所述第一信道为所述BSS支持的多信道中任意一个信道；
所述处理器，还用于获取发送最后一个SSW帧的第二信道，并监听所述第二信道；当在所述第二信道上接收到扇区扫描反馈SSW Feedback帧时，停止监听所述第二信道，所述第一信道与所述第二信道为同一信道或者不同信道。
本发明实施例提供的一种波束成形训练的实现方法、装置及设备，能够应用于支持单信道、聚合信道或者多信道的BSS(英文全称为：Basic  Service Set，中文全称为：基本服务集)，当BSS支持多信道时，PCP/AP配置每个信道上的SSW slot，并使SSW slot同步，使得STA能够随机选择信道实现波束成形训练。当BSS支持单信道或者聚合信道时，当SSW slot中存在空闲时段时，允许第一STA和第二STA来充分利用这些空闲时段。而现有技术在进行波束成形训练时，只能提供BSS支持单信道时的波束成形训练实现方法，而且在这现有实现方法中，由于进行RSS阶段占用多个SSW slot，而SSW Feedback阶段必须要在RSS阶段完成后才能进行时，导致的SSW slot中时段空闲。而本发明实施例提供的技术方案显著缓解了由于SSW slot中存在空闲时段时导致的资源浪费问题。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1-1为本发明一实施例提供的一种实现波束成形训练方法的应用场景示意图；
图1为本发明一实施例提供的另一种实现波束成形训练的方法流程图；
图2-1为本发明一实施例提供的一种实现波束成形训练的信道中SSW slot结构组成示意图；
图2为本发明一实施例提供的一种实现波束成形训练的方法流程图；
图3为本发明一实施例提供的一种波束成形训练实现装置的结构组成示意图；
图4为本发明另一实施例提供的一种波束成形训练实现装置的结构组成示意图；
图5为本发明另一实施例提供的一种波束成形训练实现设备的结构组 成示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本文中描述的各种技术可用于各种无线通信系统，例如当前2G，3G通信系统和下一代通信系统，例如全球移动通信系统(GSM，Global System for Mobile communications)，码分多址(CDMA，Code Division Multiple Access)系统，时分多址(TDMA，Time Division Multiple Access)系统，宽带码分多址(WCDMA，Wideband Code Division Multiple Access Wireless)，频分多址(FDMA，Frequency Division Multiple Addressing)系统，正交频分多址(OFDMA，Orthogonal Frequency-Division Multiple Access)系统，单载波FDMA(SC-FDMA)系统，通用分组无线业务(GPRS，General Packet Radio Service)系统，长期演进(LTE，Long Term Evolution)系统，以及其他此类通信系统。
本文中结合终端和/或基站来描述各种方面。
用户设备，可以是无线终端也可以是有线终端，无线终端可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(例如，RAN，Radio Access Network)与一个或多个核心网进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(PCS，Personal Communication Service)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(WLL，Wireless Local Loop)站、个人 数字助理(PDA，Personal Digital Assistant)等设备。无线终端也可以称为系统、订户单元(Subscriber Unit)、站点(Station)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、接入点(Access Point)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device)、或用户装备(User Equipment)。
基站(例如，接入点)可以是接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。基站可用于将收到的空中帧与IP分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)网络。基站还可协调对空中接口的属性管理。例如，基站可以是GSM或CDMA中的基站(BTS，Base Transceiver Station)，也可以是WCDMA中的基站(NodeB)，还可以是LTE中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，本发明并不限定。
另外，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在实际应用过程中，本发明实施例可以应用于WLAN(英文全称为：Wireless Local Area Network，中文全称为：无线局域网)，无线局域网中可以包括多个BSS，BSS中的基本逻辑实体为STA，且在BSS中还包括：一个PCP/AP，PCP/AP可以用于对WLAN中的STA提供接入服务，还可以协调其他STA接入无线媒介，能够对STA进行管理和协调。每个BSS中包括一个PCP/AP和一个或多个关联PCP/AP的STA。
STA可以是无线通讯芯片、无线传感器或无线通信终端。例如：支持 WiFi通讯功能的移动电话、支持WiFi通讯功能的平板电脑、支持WiFi通讯功能的机顶盒、支持WiFi通讯功能的智能电视、支持WiFi通讯功能的智能可穿戴设备和支持WiFi通讯功能的计算机。可选地，站点可以支持802.11ax制式，进一步可选地，该站点支持802.11ac、802.11n、802.11g、802.11b及802.11a等多种WLAN制式。
为了能够更为直观地描述出本实施例所提供技术方案的应用场景，将通过附图给出本发明实施例的应用场景架构图，如图1-1所示，这一应用场景包括：一个PCP/AP和3个STA，PCP/AP分别与STA1、STA2和STA3进行通信。该系统中，STA可向PCP/AP发送SSW帧，而PCP/AP可以向STA发送SSW Feedback帧或其它消息。当然该PCP/AP还可以关联更多或者更少的STA，并且与所有关联的STA进行通信。此外值得说明的是，在该附图1-1中涉及的STA与下述实施例中的涉及的第一STA和第二STA可以存在的对应关系为：STA1可以是下述描述的第一STA，STA2和/或STA3可以对应下述描述的第二STA，当然还可以有其它的对应关系，在此不再一一列举说明。
本发明实施例提供的一种波束成形训练的实现方法，这一方法可以应用于支持多信道的BSS，或者应用于支持单信道或者聚合信道的BSS。并且本发明实施例将分：BSS支持多信道、BSS支持单信道或聚合信道两种应用场景来介绍。在本发明所提供的实施例中，聚合信道，为多个单信道聚合形成的信道，所述聚合信道的频带比所述单信道的频带更宽，且在本实施例中，对聚合信道的应用方式与对单信道的应用方式相同，聚合信道的聚合方式可以与现有的聚合载波的聚合方式相同。
在支持多信道的BSS中，本发明实施例提供了新的SSW slot的划分方法，能够使波束成形训练的实现方法扩展到多信道上实现，并且避免了信道资源浪费。在支持单信道或聚合信道的BSS中，通过本发明实施例，能够通过SSW slot中包括的两个时段的长度，和在RSS时段能够发送的SSW帧个数，确定出在SSW Feedback时段能够发送的SSW帧个数，并将这一确定数值通知给所有STA，进而使得STA能够根据接收到的允许发送的 SSW帧个数确定在一个SSW slot中应发送SSW帧的个数。
本发明另一实施例提供了一种波束成形训练的实现方法，该方法应用于BSS支持单信道或聚合信道的场景，在这一场景中，PCP/AP将信道上的A-BFT时段划分为一个或者多个等长的SSW slot，每个SSW slot包括：预设用于SSW Feedback阶段的时段和预设用于RSS阶段的时段，当在SSW slot中进行RSS阶段且SSW slot中存在预设用于SSW Feedback阶段的时段空闲时，该预设用于SSW Feedback阶段的时段可以用于进行RSS阶段，传输SSW帧。
如图1所示，该方法包括：
101、PCP/AP获取预设用于SSW Feedback阶段的时段的长度、预设用于RSS阶段的时段的长度、在预设用于RSS阶段的时段能够发送的SSW帧数量。
值得说明的是，由于SSW slot是由该PCP/AP设定或配置，而每个SSW slot都包括预设用于RSS阶段的时段、预设用于SSW Feedback阶段的时段，又由于发送每个SSW帧所占时长为定值，则PCP/AP可以根据本地的静态配置信息获取到上述三种信息。
102、PCP/AP根据预设用于SSW Feedback阶段的时段的长度、预设用于RSS阶段的时段的长度和在预设用于RSS阶段的时段能够发送的SSW帧数量，确定第一SSW帧数量值。
其中，第一SSW帧数量值用于表征在SSW slot中能够发送的最大SSW帧数量。
值得说明的是，由于预设用于SSW Feedback阶段的时段长度、预设用于RSS阶段的时段长度已知，在预设用于RSS阶段的时段能够发送的SSW帧数量已知，且发送每个SSW帧所占时长相同，则可以通过比例算法，得到在整个SSW slot中能够发送的SSW帧数量。
在本实施例中，对第一SSW帧数量值的具体表示形式不做限定，该第一帧数量可以直接是预设用于SSW Feedback阶段的时段允许发送的SSW帧 的最大数值，还可以是整个SSW slot允许发送的SSW帧的最大数值。当第一SSW帧数量值为预设用于SSW Feedback阶段的时段允许发送的SSW帧的最大数值时，由于预设用于RSS阶段的时段允许发送的SSW帧数值已知，则可以通过第一SSW帧数量值和该已知的预设用于RSS阶段的时段允许发送的SSW帧数值，得到的SSW slot中能够发送的最大SSW帧数量。该第一SSW帧数量值可以为一个常量值。
103、PCP/AP将第一SSW帧数量值发送给STA。
该步骤103中的描述的STA是一个集合概念，包括所有能够接入PCP/AP的STA。
在该步骤103中，PCP/AP向STA发送第一SSW帧数量值时，可以在STA发送SSW帧之前，将该值携带在信标帧的一个域或者一个子域中通过广播的形式告知STA。进一步的在将该值告知给STA之后，可以使接收到该值的STA决定其竞争到的SSW slot中发送多少个SSW帧。
结合上述步骤101-步骤103的描述，PCP/AP根据SSW slot中预设用于RSS阶段的时段长度、预设用于SSW Feedback阶段的时段长度、预设用于RSS阶段的时段能够发送的SSW帧数量来确定第一SSW帧数量值，并将该第一SSW帧数量值发送给STA，该第一SSW帧数量值用于表征在SSW Feedback时段能够发送的最大SSW帧数量。现有技术中，STA在一个SSW slot中发送的SSW帧个数，只是在预设用于RSS阶段的时段允许发送的SSW帧数量，而该STA的SSW Feedback阶段在RSS阶段完成后进行，STA的RSS阶段在SSW slot中不能完成时，就会导致SSW slot中SSW Feedback时段资源的浪费。而本发明实施例提供的技术方案，PCP/AP将指示STA在整个SSW slot中可以发送的SSW帧数量告知STA，使得STA能够根据这一帧数量选择在SSW slot中发送多少SSW帧，使得STA发送SSW帧时不只考虑使用预设用于RSS阶段的时段，从而显著减少了SSW slot中空闲时段的资源浪费。
104、当第一STA发送完最后一个SSW帧，且最后一个SSW帧所在的 SSW slot存在空闲时段时，PCP/AP向第一STA发送SSW Feedback帧。
在本实施例中，第一STA为能够接入PCP/AP的任意一个STA，空闲时段包括：预设用于SSW Feedback阶段的时段和/或预设用于RSS阶段的时段。
105、当第一STA发送完最后一个SSW帧，且最后一个SSW帧所在的SSW slot存在空闲时段时，PCP/AP向第二STA发送第二SSW帧数量值。
其中，第二SSW帧数量值用于指示第二STA在空闲时段中能够发送的SSW帧数量。第二STA为，能够接入PCP/AP，且在第一STA完成RSS阶段后，还未开始RSS阶段或者还未完成RSS阶段的STA。
106、接收第二STA发送的SSW帧。
值得说明的是，本实现方式中描述的当第一STA发送完最后一个SSW帧，且所述最后一个SSW所在的SSW slot存在空闲时段的场景时，还可以描述为，根据STA的设备特性，STA需要发送M个SSW帧以完成RSS阶段，网路或者PCP/AP规定每个SSW slot中最多能够发送N个SSW帧，当M不是N的整数倍时，则STA不能充分利用SSW slot完成RSS阶段，则此时SSW slot中必然会存在空闲时段。这里的空闲时段包括预设用于RSS阶段的时段和/或预设用于SSW Feedback阶段的时段。结合上述对空闲时段的利用，即，可以利用空闲时段来发送第一STA的SSW Feedback帧，或者利用空闲时段发送第二STA的SSW帧，或者在空闲时段发送第一STA的SSW Feedback帧和第二STA的SSW帧。
结合上述步骤描述，在本实施例的具体实现过程中，在执行步骤104-03之前，PCP/AP首先将信道上的A-BFT时段划分为一个或者多个等长的SSW slot。且上述步骤104-106描述的执行流程是包括并列执行的两个方面，第一方面包括步骤104，第二方面包括步骤105、106。
本发明实施例提供了一种波束成形训练的实现方法，这一方法应用于法应用于BSS支持单信道或聚合信道的场景，当第一STA发送完最后一个SSW帧，且所述最后一个SSW所在的SSW slot存在空闲时段时，PCP/AP可 以在这一空闲时段，向第一STA发送SSW Feedback帧；PCP/AP还可以向第二STA发送第二SSW帧数量值，进而在空闲时段接收第二STA发送的SSW帧。与现有技术中，SSW Feedback阶段必须要在RSS阶段完成后才能进行，当STA的RSS阶段未完成时，SSW slot中存在空闲时段不可用相比，本发明实施例充分利用了SSW slot中的空闲时段，显著减少了SSW slot中空闲时段的资源浪费。
为了能够更为直观地说明本发明实施例的实现空闲时段的利用流程，下述将以具体实例对本发明的执行流程进行描述。
比如在本实例中涉及两个STA，分别记为STA1和STA2。STA 1需发送8个SSW帧以完成其RSS阶段，STA 2需发送16个SSW帧以完成其RSS阶段。PCP/AP规定STA在每个SSW slot中最多可发送6个SSW帧。即STA 1和STA 2竞争接入每个SSW slot以发送SSW帧，竞争SSW slot成功的STA可最多发送6个SSW帧。且以本实例中A-BFT时段包括8个SSW slot为例说明。
在实际竞争过程中，STA 1竞争成功第1个SSW slot，在该第1个SSW slot中发送6个SSW帧，则该STA1要完成RSS阶段还需要再发送2个SSW帧；STA 2竞争成功第2个SSW slot，在该第2个SSW slot中发送6个SSW帧，还剩10个SSW帧需要发送；STA 1竞争成功第3个SSW slot，在该第3个SSW slot中发送2个SSW帧，则该SSW slot还有空闲时段可让STA发送4个SSW帧。
此时，PCP/AP通过命令帧指示STA 2直接接入该信道并利用该空闲时段发送4个或更少数量的SSW帧，且在发送该命令帧时，PCP/AP告知STA2，可以在该第3个SSW slot中能够发送的SSW帧数量，也就是上述描述的第二SSW帧数量值。或者，PCP/AP先向STA 1发送SSW Feedback帧，再通过命令帧指示STA 2直接接入该信道发送4个或更少数量的SSW帧，且在发送该命令帧时，PCP/AP告知STA2，可以在该第3个SSW slot中能够发送的SSW帧数量，也就是上述描述的第二SSW帧数量值。
结合上述如图1所示的实施例，PCP/AP可根据第3个SSW slot中的SSW Feedback时段是否可用来决定STA 2可发送SSW帧的数量。
随着无线通信技术的发展，BSS能够支持多信道，但是现有技术中的波束成形训练技术只适用于BSS支持单信道的场景，这样在该BSS支持多信道情况下，如果继续沿用现有波束成形训练的实现方法，就只能在单信道上实现，从而导致BSS同时支持的其余信道资源浪费，对此本发明实施例提供了一种信道波束成形训练的实现方法，能够适用于支持多信道的BSS。
具体的，在本发明实现过程中，在BSS支持多信道场景中，首先需要对这些BSS支持的信道进行SSW slot划分：把BSS支持的每个信道的A-BFT时段都划分为相同数量且等长的SSW slot，并且所有信道的SSW slot都同步。为了更为直观地介绍所有信道上的SSW slot都同步，将通过下述附图来描述各信道上SSW slot同步后的场景，如图2-1所示，在该图中示意性地描述出BBS支持3个信道，分别为Channel 1、Channel 2、Channel 3，且在该附图2-1中示出的是每个信道上的A-BFT信道接入时段，每个A-BFT信道接入时段包括n(n为正整数)个SSW slot，每个SSW slot包括RSS和SSW Feedback两个时段，因为信道上的所有SSW slot组成形式相同，所以在该附图中，只在每个信道上示出3个SSW slot，分比为第一、二和第n个SSW slot。
在上述2-1中描述的应用场景中，执行本发明提供的波束成形训练实现方法时，通过BSS中的STA执行，如图2所示，这一执行流程包括：
201、STA确定第一信道。
其中，第一信道为BSS支持的多信道中任意一个信道。
202、在第一信道上确定第一SSW slot，并在该第一SSW slot上向PCP/AP发送SSW帧。
具体的该步骤202涉及的操作流程包括：
第一步：STA从[0，A-BFT Length-1]中随机选择一个整数作为自己的backoff count，并随机选择一个信道。
其中，通过A-BFT Length域的值，即A-BFT Length，来宣布A-BFT的长度(单位为SSW slot)，比如，结合上述如图2-1所示的SSW slot设置场景中，同步的一个A-BFT时段上包括n个SSW slot，则A-BFT Length为n。
第二步、在A-BFT开始(即第一个SSW slot开始)时，STA使用所选的backoff count在所选的信道上启动随机退避过程发送SSW帧。
该第二步骤描述的即为，STA在第一信道上选择第一SSW slot的实现过程，该第一SSW slot上述第一步骤中确定的backoff count确定，比如，上述如图2-1所示的，n值为8，则A-BFT时段长度为8，当确定的backoff count为2时，则该STA在第3个SSW slot(SSW slot的计数从0开始)中向PCP/AP发送SSW帧。
此外值得说明的是，STA要完成RSS阶段需要向PCP/AP发送一定数量的SSW帧，根据STA的设备特性，STA要完成RRS阶段可能会跨越多个信道、多个SSW slot或者多个A-BFT。
203、获取发送最后一个SSW帧的第二信道，并监听第二信道。
结合上述描述，该步骤203中涉及的第二信道与上述的第一信道均为BSS支持的信道，且这两个信道为同一信道，或者不同信道。
204、当在第二信道上接收到SSW Feedback帧时，停止监听第二信道。
在该步骤204中指出，在STA发送最后一个SSW帧的信道上监听该STA是否接收到SSW Feedback帧。该步骤中描述的，当在第二信道上接收到SSW Feedback帧时，停止监听第二信道，为保证能够实现波束成形训练，监听是否接收到SSW Feedback帧是一个必要的执行流程，而这里的监听的第二信道与发送SSW帧的第一信道可以是不同的信道，也就是说同一个STA的波束成形训练可以在不同的信道上实现。而现有技术中，发送SSW帧、监听发送最后一个SSW帧的SSW slot以及发送SSW Feedback帧都是在同一个信道上执行。但是由于BSS系统的发展，BSS将会同时工作多个信道上，如果继续沿用现有技术中波束成形训练的实现方法，则在BSS支持多信道的情况下，也只能应用其中的一个信道，造成其他信道资源的浪费。
本发明实施例提供了一种波束成形训练的实现方法，应用于支持多信道的BSS，首先由BSS中的PCP/AP将所有信道上A-BFT划分为数量相同，且等长的SSW slot，并使这些SSW slot同步，BSS中的STA从多个信道中任意选择一个信道，并在这一选定的信道中确定出第一SSW slot，在该第一SSW slot上发送SSW帧，并在发送最后一个SSW帧的信道上监听是否接收到SSW Feedback帧，当在接收到SSW Feedback帧时，停止监听该信道。与现有技术中，SSW帧的发送、SSW Feedback帧的监听以及SSW Feedback帧的发送只能在同一个信道上进行来说，本发明实施例在BSS支持多信道时，能够在多个信道上实现波束成形训练，充分利用了信道资源，避免了在BSS支持多个信道时，继续沿用现有波束成形训练实现方式导致的信道资源浪费问题。
本发明另一实施例提供了一种波束成形训练的实现装置，该装置应用于支持单信道或聚合信道的BSS，且装置置于PCP/AP中，如图3所示，这一装置包括：时段划分单元31、发送单元32、接收单元33、获取单元34、确定单元35。
时段划分单元31，用于将A-BFT时段划分为一个或多个等长的SSW slot。
其中，SSW slot包括：预设用于SSW Feedback阶段的时段和预设用于RSS阶段的时段。
在本实施例的执行过程中会涉及第一STA、第二STA、空闲时段。其中，第一STA为能够接入PCP/AP的任意一个STA。
空闲时段包括：预设用于SSW Feedback阶段的时段和/或预设用于RSS阶段的时段。
第二STA为，能够接入PCP/AP，且在第一STA完成RSS阶段后，还未开始RSS阶段或者还未完成RSS阶段的STA。
获取单元34，用于在第一STA发送SSW帧之前，获取预设用于SSW Feedback阶段的时段的长度、预设用于RSS阶段的时段的长度和在预设用 于RSS阶段的时段能够发送的SSW帧数量。
确定单元35，用于根据获取单元34获取的预设用于SSW Feedback阶段的时段的长度、预设用于RSS阶段的时段的长度和在用于RSS阶段的时段能够发送的SSW帧数量，确定第一SSW帧数量值。
其中，第一SSW帧数量值用于表征在SSW slot中能够发送的最大SSW帧数量。
发送单元32，还用于将确定单元35确定的第一SSW帧数量值发送给所有能够接入PCP/AP的STA；还用于当第一STA发送完最后一个SSW帧，且最后一个SSW帧所在的SSW slot存在空闲时段时，向第一STA发送SSW Feedback帧；还用于当第一STA发送完最后一个SSW帧，且最后一个SSW帧所在的SSW slot存在空闲时段时，向第二STA发送第二SSW帧数量值。
其中，第二SSW帧数量值用于指示第二STA在空闲时段中能够发送的SSW帧数量。
接收单元33，用于接收第二STA发送的SSW帧。
值得说明的是，在本实施例中，是在应用时隙划分单元31实现相应功能的基础上，才应用发送单元32、接收单元33的功能，且接收单元33是在发送单元32将第一帧数量值发送给第二STA之后，才能接收到第二STA发送的SSW帧。
值得说明的是，上述图3所示的装置，可用于实现图1所示的方法流程，为了便于说明，仅示出了与本发明实施例相关的部分，具体技术细节未揭示的，请参照上述附图所示的本发明各实施例的相关内容描述。
本发明实施例提供了一种波束成形训练的实现装置，这一方法应用于法应用于BSS支持单信道或聚合信道的场景，当第一STA发送完最后一个SSW帧，且所述最后一个SSW所在的SSW slot存在空闲时段时，通过发送单元可以在这一空闲时段，向第一STA发送SSW Feedback帧；还可以向第二STA发送第二SSW帧数量值，进而在空闲时段接收第二STA发送的SSW帧。与现有技术中，SSW Feedback阶段必须要在RSS阶段完成后才能进行， 当STA的RSS阶段未完成时，SSW slot中存在空闲时段不可用相比，本发明实施例充分利用了SSW slot中的空闲时段，显著减少了SSW slot中空闲时段资源的浪费。
本发明另一实施例提供了一种波束成形训练的实现装置，该装置应用于支持多信道的BSS，BBS中的PCP/AP将每个信道的A-BFT时段划分为数量相同的等长SSW slot，且所有SSW slot同步，且该装置置于BBS中的STA。如图4所示，这一装置包括：信道确定单元41、时隙确定单元42、信道获取单元43、监听单元44。
信道确定单元41，用于确定第一信道。
其中，第一信道为BSS支持的多信道中任意一个信道。
时隙确定单元42，用于在信道确定单元41确定的第一信道上确定第一SSW slot，并在该第一SSW slot上向PCP/AP发送SSW帧。
信道获取单元43，用于获取发送最后一个SSW帧的第二信道。
监听单元44，用于监听信道获取单元43获取的第二信道；还用于当在信道获取单元43获取的第二信道上接收到SSW Feedback帧时，停止监听该第二信道。
其中，第一信道与所述第二信道相同或不同，且第二信道为BSS支持的多信道中的信道。
值得说明的是，上述图4所示的装置，可用于实现图2所示的方法流程，为了便于说明，仅示出了与本发明实施例相关的部分，具体技术细节未揭示的，请参照上述附图所示的本发明各实施例的相关内容描述。
本发明实施例提供的一种波束成形训练的实现装置，应用于支持多信道的BSS，首先由BSS中的PCP/AP将所有信道上A-BFT划分为数量相同，且等长的SSW slot，并使这些SSW slot同步，BSS中的STA通过信道确定单元从多个信道中任意选择一个信道，并通过时隙确定单元在这一选定的信道中确定出第一SSW slot，在该第一SSW slot上发送SSW帧，进而通过监听单元，在发送最后一个SSW帧的信道上监听是否接收到SSW Feedback 帧，当在接收到SSW Feedback帧时，停止监听该信道。与现有技术中，SSW帧的发送、SSW Feedback帧的监听以及SSW Feedback帧的发送只能在同一个信道上进行来说，本发明实施例在BSS支持多信道时，能够在多个信道上实现波束成形训练，充分利用了信道资源，避免了在BSS支持多个信道时，继续沿用现有波束成形训练实现方式导致的信道资源浪费问题。
本发明另一实施例提供了一种波束成形训练的实现设备，该设备应用于支持单信道或聚合信道的BSS，如图5所示，该设备包括：存储器51、处理器52、收发器53，其中存储器51、处理器52、收发器53之间通过总线54连接，可相互进行数据传输。
存储器51可以是只读存储器(Read Only Memory，ROM)，静态存储设备，动态存储设备或者随机存取存储器(Random Access Memory，RAM)。存储器51可以存储操作系统和其他应用程序。在通过软件或者固件来实现本发明实施例提供的技术方案时，用于实现本发明实施例提供的技术方案的程序代码保存在存储器51中，并由处理器52来执行。
处理器52可以采用通用的中央处理器(Central Processing Unit，CPU)，微处理器，应用专用集成电路(Application Specific Integrated Circuit，ASIC)，或者一个或多个集成电路，用于执行相关程序，以实现本发明实施例所提供的技术方案。
收发器53，用于装置与其他设备或通信网络(例如但不限于以太网，无线接入网(Radio Access Network，RAN)，无线局域网(Wireless Local Area Network，WLAN)等)之间的通信。
总线54可包括一通路，在装置各个部件(例如存储器51、处理器52、收发器53)之间传送信息。
应注意，尽管图5所示的硬件仅仅示出了存储器51、处理器52、收发器53以及总线54，但是在具体实现过程中，本领域的技术人员应当明白，该设备还包含实现正常运行所必须的其他器件。同时，根据具体需要，本领域的技术人员应当明白，还可包含实现其他功能的硬件器件。
具体的在本实施例中，存储器51，用于存储包括程序指令的信息。
处理器52，分别与存储器51和收发器53耦合，用于控制程序指令的执行，还用于将A-BFT时段划分为一个或多个等长的SSW slot。
其中，SSW slot包括：预设用于SSW Feedback阶段的时段和预设用于RSS阶段的时段。
在本实施例的具体实现过程中，会涉及第一STA、空闲时段、第二STA，其中，第一STA为能够接入PCP/AP的任意一个STA，空闲时段包括：预设用于SSW Feedback阶段的时段和/或预设用于RSS阶段的时段；第二STA为，能够接入PCP/AP，且在第一STA完成RSS阶段后，还未开始RSS阶段或者还未完成RSS阶段的STA。
处理器52，还用于获取预设用于SSW Feedback阶段的时段的长度、预设用于RSS阶段的时段的长度和在预设用于RSS阶段的时段能够发送的SSW帧数量；并根据预设用于SSW Feedback阶段的时段的长度、预设用于RSS阶段的时段的长度和在用于RSS阶段的时段能够发送的SSW帧数量，确定第一SSW帧数量值。
其中，第一SSW帧数量值用于表征在SSW slot中能够发送的最大SSW帧数量。
收发器53，还用于将处理器52确定的第一SSW帧数量值发送给所有能够接入PCP/AP的STA。
收发器53，用于在第一STA发送完最后一个SSW帧，且最后一个SSW帧所在的SSW slot存在空闲时段时，向第一STA发送SSW Feedback帧；还可以用于，当第一STA发送完最后一个SSW帧，且最后一个SSW帧所在的SSW slot存在空闲时段时，向第二STA发送第二SSW帧数量值，并接收所述第二STA发送的SSW帧。
其中，第二SSW帧数量值用于指示第二STA在空闲时段中能够发送的SSW帧数量。
值得说明的是，本该图5所示的实现波束成形训练的设备，可以是 PCP/AP。此外，该图5中所示的实施例，可以用于实现上述图1所示的方法流程。
本发明实施例提供的一种波束成形训练的实现设备，这一设备应用于法应用于BSS支持单信道或聚合信道的场景，当第一STA发送完最后一个SSW帧，且所述最后一个SSW所在的SSW slot存在空闲时段时，通过收发器可以在这一空闲时段，向第一STA发送SSW Feedback帧；还可以向第二STA发送第二SSW帧数量值，进而在空闲时段接收第二STA发送的SSW帧。与现有技术中，SSW Feedback阶段必须要在RSS阶段完成后才能进行，当STA的RSS阶段未完成时，SSW slot中存在空闲时段不可用相比，本发明实施例充分利用了SSW slot中的空闲时段，显著减少了SSW slot中空闲时段资源的浪费。
本发明另一实施例提供了一种波束成形训练的实现设备，该设备应用于支持多信道的BSS，PCP/AP将每个信道的A-BFT时段划分为数量相同的等长扇区扫描时隙SSW slot，且所有SSW slot同步；所述设备包括：存储器61、处理器62、收发器63，且存储器61、处理器62、收发器63通过总线64连接，可以进行数据传输。在本实施例中，存储器61、处理器62、收发器63、总线64的连接构成形式与如图5中所示的存储器51、处理器52、收发器53、总线54分别对应，其相应的描述内容相同，只是在本实施例中，这些设备器件用于实现其他功能，且具体功能如下述。而且存储器61、处理器62、收发器63、总线64的连接构成形式与图5中所示的连接构成形式相同，可以直接采用图5中示出的结构组成示意图，只要变换相应的设备编号即可。
存储器61，用于存储包括程序指令的信息。
处理器62，分别与存储器和收发器耦合，用于控制所述程序指令的执行，还用于确定第一信道；在第一信道上确定第一SSW slot。
收发器63，用于在处理器62确定的第一SSW slot上向PCP/AP发送SSW帧。
其中，第一信道为BSS支持的多信道中任意一个信道。
处理器62，还用于获取发送最后一个SSW帧的第二信道，并监听第二信道；当在该第二信道上接收到SSW Feedback帧时，停止监听第二信道。
其中，第一信道与第二信道相同或不同，且第二信道为BSS支持的多信道中的信道。
值得说明的是，在本实施例中，由存储器61、处理器62、收发器63以及总线64以图5所示构成形式构成的波束成形训练的实现设备，可以是接入PCP/AP的任意一个STA，本实施例中示出的设备，可以用于实现上述图2所示的方法流程。
本发明实施例提供了一种波束成形训练的实现设备，应用于支持多信道的BSS，首先由BSS中的PCP/AP将所有信道上A-BFT划分为数量相同，且等长的SSW slot，并使这些SSW slot同步，通过处理器从多个信道中任意选择一个信道，并在这一选定的信道中确定出第一SSW slot，通过收发器在该第一SSW slot上发送SSW帧，并在发送最后一个SSW帧的信道上监听是否接收到SSW Feedback帧，当在接收到SSW Feedback帧时，停止监听该信道。与现有技术中，SSW帧的发送、SSW Feedback帧的监听以及SSW Feedback帧的发送只能在同一个信道上进行来说，本发明实施例在BSS支持多信道时，能够在多个信道上实现波束成形训练，充分利用了信道资源，避免了在BSS支持多个信道时，继续沿用现有波束成形训练实现方式导致的信道资源浪费问题。
通过以上的实施方式的描述，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，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。上述描述的系统，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，所揭露的系统，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，所述模块或单元的划分，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系统，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，在本发明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。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元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，本发明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全部或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)或处理器(processor)执行本发明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(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明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发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (6)

  1. 一种波束成形训练的实现方法，其特征在于，所述方法应用于支持单信道或聚合信道的基本服务集BSS，将关联波束成形训练A-BFT时段划分为一个或多个等长的扇区扫描时隙SSW slot，所述SSW slot包括：预设用于扇区扫描反馈SSW Feedback阶段的时段和预设用于响应方扇区扫描RSS阶段的时段；第一站点STA为能够接入个人基本服务集控制点/接入点PCP/AP的任意一个STA；第二STA为，能够接入所述PCP/AP，且在所述第一STA完成RSS阶段后，还未开始RSS阶段或者还未完成RSS阶段的STA；空闲时段包括：所述预设用于SSW Feedback阶段的时段和/或所述预设用于RSS阶段的时段；
    所述方法包括：
    所述PCP/AP获取所述预设用于SSW Feedback阶段的时段的长度、所述预设用于RSS阶段的时段的长度和在所述预设用于RSS阶段的时段能够发送的扇区扫描SSW帧数量；
    根据所述预设用于SSW Feedback阶段的时段的长度、所述预设用于RSS阶段的时段的长度和在所述用于RSS阶段的时段能够发送的SSW帧数量，确定第一SSW帧数量值，所述第一SSW帧数量值用于表征在所述SSW slot中能够发送的最大SSW帧数量；
    将所述第一SSW帧数量值发送给所有能够接入所述PCP/AP的STA；
    当所述第一STA发送完最后一个SSW帧，且所述最后一个SSW帧所在的SSW slot存在所述空闲时段时，所述PCP/AP向所述第一STA发送SSW Feedback帧；和/或，
    当所述第一STA发送完最后一个SSW帧，且所述最后一个SSW帧所在的SSW slot存在所述空闲时段时，所述PCP/AP向所述第二STA发送第二SSW帧数量值，所述第二SSW帧数量值用于指示所述第二STA在所述空闲时段中能够发送的SSW帧数量，并接收所述第二STA发送的SSW帧。
  2. 一种波束成形训练的实现方法，其特征在于，所述方法应用于支持多信道的基本服务集BSS，个人基本服务集控制点/接入点PCP/AP将每个信道的关联波束成形训练A-BFT时段划分为数量相同的等长扇区扫描时隙SSW slot，且所有SSW slot同步；
    所述方法包括：
    所述BSS中的站点STA确定第一信道，所述第一信道为所述BSS支持的多信道中任意一个信道；
    在所述第一信道上确定第一SSW slot，并在所述第一SSW slot上向PCP/AP发送扇区扫描SSW帧；
    获取发送最后一个SSW帧的第二信道，并监听所述第二信道，所述第一信道与所述第二信道为同一信道或者不同信道；
    当在所述第二信道上接收到扇区扫描反馈SSW Feedba ck帧时，停止监听所述第二信道。
  3. 一种波束成形训练的实现装置，其特征在于，所述装置应用于支持单信道或聚合信道的基本服务集BSS，所述装置置于个人基本服务集控制点/接入点PCP/AP，所述装置包括：
    时段划分单元，用于将关联波束成形训练A-BFT时段划分为一个或多个等长的扇区扫描时隙SSW slot，所述SSW slot包括：预设用于扇区扫描反馈SSW Feedback阶段的时段和预设用于响应方扇区扫描RSS阶段的时段；第一STA为能够接入所述PCP/AP的任意一个STA；第二STA为，能够接入所述PCP/AP，且在所述第一STA完成RSS阶段后，还未开始RSS阶段或者还未完成RSS阶段的STA；空闲时段包括：所述预设用于SSW Feedback阶段的时段和/或所述预设用于RSS阶段的时段；
    获取单元，用于获取所述预设用于SSW Feedback阶段的时段的长度、所述预设用于RSS阶段的时段的长度和在所述预设用于RSS阶段的时段能够发送的扇区扫描SSW帧数量；
    确定单元，用于根据所述获取单元获取的所述预设用于SSW Feedback 阶段的时段的长度、所述预设用于RSS阶段的时段的长度和在所述用于RSS阶段的时段能够发送的SSW帧数量，确定第一SSW帧数量值，所述第一SSW帧数量值用于表征在所述SSW slot中能够发送的最大SSW帧数量；
    发送单元，还用于将所述确定单元确定的所述第一SSW帧数量值发送给所有能够接入所述PCP/AP的STA；
    所述发送单元，用于当所述第一STA发送完最后一个SSW帧，且所述最后一个SSW帧所在的SSW slot存在所述空闲时段时，向所述第一STA发送SSW Feedback帧；和/或，
    所述发送单元，还用于当所述第一STA发送完最后一个SSW帧，且所述最后一个SSW帧所在的SSW slot存在所述空闲时段时，向所述第二STA发送第二SSW帧数量值，所述第二SSW帧数量值用于指示所述第二STA在所述空闲时段中能够发送的SSW帧数量；
    接收单元，用于接收所述第二STA发送的SSW帧。
  4. 一种波束成形训练的实现装置，其特征在于，所述装置应用于支持多信道的基本服务集BSS，个人基本服务集控制点/接入点PCP/AP将每个信道的关联波束成形训练A-BFT时段划分为数量相同的等长扇区扫描时隙SSW slot，且所有SSW slot同步；所述装置置于站点STA；
    所述装置包括：
    信道确定单元，用于确定第一信道，所述第一信道为所述BSS支持的多信道中任意一个信道；
    时隙确定单元，用于在所述信道确定单元确定的所述第一信道上确定第一SSW slot，并在所述第一SSW slot上向所述PCP/AP发送扇区扫描SSW帧；
    信道获取单元，用于获取发送最后一个SSW帧的第二信道，所述第一信道与所述第二信道为同一信道或者不同信道；
    监听单元，用于监听所述信道获取单元获取的所述第二信道；还用于当在所述信道获取单元获取的所述第二信道上接收到扇区扫描反馈SSW  Feedback帧时，停止监听所述第二信道。
  5. 一种波束成形训练的实现设备，其特征在于，所述设备应用于支持单信道或聚合信道的基本服务集BSS，所述设备包括：
    存储器，用于存储包括程序指令的信息；
    处理器，分别与所述存储器和收发器耦合，用于控制所述程序指令的执行，还用于将关联波束成形训练A-BFT时段划分为一个或多个等长的扇区扫描时隙SSW slot；
    所述SSW slot包括：预设用于扇区扫描反馈SSW Feedback阶段的时段和预设用于响应方扇区扫描RSS阶段的时段；第一站点STA为能够接入个人基本服务集控制点/接入点PCP/AP的任意一个STA；第二STA为，能够接入所述PCP/AP，且在所述第一STA完成RSS阶段后，还未开始RSS阶段或者还未完成RSS阶段的STA；空闲时段包括：所述预设用于SSW Feedback阶段的时段和/或所述预设用于RSS阶段的时段；
    所述处理器，还用于获取所述预设用于SSW Feedback阶段的时段的长度、所述预设用于RSS阶段的时段的长度和在所述预设用于RSS阶段的时段能够发送的扇区扫描SSW帧数量；并根据所述预设用于SSW Feedback阶段的时段的长度、所述预设用于RSS阶段的时段的长度和在所述用于RSS阶段的时段能够发送的SSW帧数量，确定第一SSW帧数量值，所述第一SSW帧数量值用于表征在所述SSW slot中能够发送的最大SSW帧数量；
    所述收发器，还用于将所述处理器确定的所述第一SSW帧数量值发送给所有能够接入所述PCP/AP的STA；
    所述收发器，用于在所述第一STA发送完最后一个SSW帧，且所述最后一个SSW帧所在的SSW slot存在所述空闲时段时，向所述第一STA发送SSW Feedback帧；和/或，当所述第一STA发送完最后一个SSW帧，且所述最后一个SSW帧所在的SSW slot存在所述空闲时段时，向所述第二STA发送第二SSW帧数量值，所述第二SSW帧数量值用于指示所述第二STA在所述空闲时段中能够发送的SSW帧数量，并接收所述第二STA发送的SSW 帧。
  6. 一种波束成形训练的实现设备，其特征在于，所述设备应用于支持多信道的基本服务集BSS，个人基本服务集控制点/接入点PCP/AP将每个信道的关联波束成形训练A-BFT时段划分为数量相同的等长扇区扫描时隙SSW slot，且所有SSW slot同步；所述设备包括：
    存储器，用于存储包括程序指令的信息；
    处理器，分别与所述存储器和收发器耦合，用于控制所述程序指令的执行，还用于确定第一信道；在所述第一信道上确定第一SSW slot；
    所述收发器，用于在所述处理器确定的所述第一SSW slot上向PCP/AP发送扇区扫描SSW帧；
    所述第一信道为所述BSS支持的多信道中任意一个信道；
    所述处理器，还用于获取发送最后一个SSW帧的第二信道，并监听所述第二信道；当在所述第二信道上接收到扇区扫描反馈SSW Feedback帧时，停止监听所述第二信道，所述第一信道与所述第二信道为同一信道或者不同信道。
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