WO2013063935A1 - 一种信道测量反馈请求方法、站点装置及服务集系统 - Google Patents

一种信道测量反馈请求方法、站点装置及服务集系统 Download PDF

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Publication number
WO2013063935A1
WO2013063935A1 PCT/CN2012/076500 CN2012076500W WO2013063935A1 WO 2013063935 A1 WO2013063935 A1 WO 2013063935A1 CN 2012076500 W CN2012076500 W CN 2012076500W WO 2013063935 A1 WO2013063935 A1 WO 2013063935A1
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Prior art keywords
information field
bits
site information
bit
indicate
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PCT/CN2012/076500
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English (en)
French (fr)
Inventor
张兴新
高磊
刘孟红
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华为技术有限公司
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Publication of WO2013063935A1 publication Critical patent/WO2013063935A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0619Diversity 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
    • H04B7/0621Feedback content
    • H04B7/0626Channel coefficients, e.g. channel state information [CSI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026Transmission of channel quality indication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027Scheduling of signalling, e.g. occurrence thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present invention claims to be submitted to the Chinese Patent Office on October 31, 2011, and the application number is 201110337719.
  • the invention name is "a channel measurement feedback request method, a site device"
  • the priority of the Chinese Patent Application for the "Service Set System” is incorporated herein by reference.
  • TECHNICAL FIELD The present invention relates to the field of communications, and in particular, to a channel measurement feedback request method, a site device, and a service set system.
  • BACKGROUND OF THE INVENTION VHT sounding protocol very high throughput sounding protocol
  • l lac which is a beamforming initiator (Beamformer) and beamforming receiver ( Channel detection mechanism between Beamformee).
  • the NDPA (Nul l Data Pocket Announcement) frame of the beamforming initiator is used to request the corresponding STA (Enabling Station) to perform measurement feedback.
  • the STA After receiving the NDPA frame from the beamforming initiator, the STA checks the value of the access identifier field in the STA Info field of the MAC (Medium Access Control) packet in the NDPA frame one by one. The same AID (appl ication identifier) is the same. If the same AID is found, subsequent measurements are made according to the corresponding Feedback Type field and the NC Index field, and beamforming is performed by ultra-high throughput.
  • the VHT Compressed Beamforming feeds back the corresponding measurement information to the beamforming initiator; otherwise, it means that the same AID cannot be found, and the STA is not among the respondents who are requested.
  • the NDPA frame MAC frame format is shown in Table 1 and the site information field settings are as shown in Table 2.
  • NDPA Frame One STA Info field in the MAC frame format corresponds to one STA, and the station determines whether subsequent measurements are needed according to the AID field.
  • the number of bits used to place the AID in the site information field is insufficient.
  • a channel measurement feedback request method including:
  • a channel measurement feedback request method including:
  • a device for transmitting a site including:
  • a generating unit configured to generate an empty packet notification that includes a site information field, where the bit used to indicate the associated identifier in the site information field is at least 13 bits;
  • a receiving end station device including:
  • a receiving unit configured to receive a null packet notification that includes a site information field, where the bit used to indicate the association identifier in the site information field is at least 13 bits;
  • a parsing unit configured to parse the site information field, and determine whether to perform channel measurement feedback according to the association identifier indicated in the site information field.
  • a service set system including:
  • a sender site device configured to generate a null packet notification including a site information field, where the bit used to indicate the association identifier in the site information field is at least 13 bits; the null packet notification is sent to the receiving site; And the end station device is configured to receive a null packet notification that includes a site information field, where the bit in the site information field is used to indicate that the associated identifier is at least 13 bits; and the site information field is parsed according to the site information field.
  • the associated identifier indicated in the medium determines whether it performs channel measurement feedback.
  • the sender site generates an empty packet notification including a site information field, where the bit in the site information field is used to indicate the associated identifier
  • the bit station is at least 13 bits; the transmitting end station sends the null packet notification to the receiving end station, so that the receiving end station determines whether to perform channel measurement feedback according to the associated identifier indicated in the station information field.
  • the bit used to indicate the associated identifier AID in the station information field becomes at least 13 bits, and at least 1 bit is added with respect to the prior art, and the storage amount of the AID is correspondingly increased, and in a network supporting more than 4096 sites,
  • the notification of the channel measurement site is implemented using an empty packet notification.
  • FIG. 1 is a flowchart of a channel measurement feedback request method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of another channel measurement feedback request method according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of still another channel measurement feedback request method according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a device at a transmitting end according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a device at a receiving end according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a service set system according to an embodiment of the present invention.
  • the channel measurement feedback request method provided by the embodiment of the present invention includes the following steps:
  • the S10K sender site generates an empty packet notification that includes a site information field, where the site information field is used to indicate the association identifier.
  • the bit is at least 13 bits.
  • the sending end station sends the empty packet notification to the receiving end station, so that the receiving end station determines whether to perform channel measurement feedback according to the associated identifier indicated in the station information field.
  • the site information field can also include: feedback category and number of streams.
  • the bit used to indicate the associated identifier AID in the site information field becomes at least 13 bits, which is increased by at least 1 bit compared with the prior art, and the AID storage amount is correspondingly increased, and can be in a network supporting more than 4096 sites.
  • the notification of the channel measurement site is implemented using an empty packet notification.
  • the S20K receiving end station receives the empty packet notification containing the station information field; wherein the bit used in the station information field to indicate the associated identifier is at least 13 bits.
  • the receiving end station parses the station information field, and determines whether the channel measurement feedback is performed according to the associated identifier indicated in the station information field.
  • the bit used to indicate the associated identifier AID in the site information field becomes at least 13 bits, which is increased by at least 1 bit compared with the prior art, and the AID storage amount is correspondingly increased, and can be in a network supporting more than 4096 sites.
  • the notification of the channel measurement site is implemented using an empty packet notification.
  • the S30K sender site generates an empty packet notification with a site information field.
  • the bit used in the site information field for indicating the association identifier is at least 13 bits.
  • the site information field further includes: a feedback category and a stream number.
  • the site information field occupies at least 16 bits.
  • the generated site information field can be as a table As shown in FIG. 3, the station information field occupies a bit of 16; wherein, 13 bits are used to indicate the association identifier, 1 bit is used to indicate the feedback category, and 2 bits are used to indicate the number of streams. Specifically, among the 16-bit bits occupied by the station information field, the first 13 bits of the 12th bit indicate the association identifier; the 1st bit of the 13th bit indicates the feedback category; the 2nd bit of the 14th to 15th bits indicate the number of streams .
  • the generated site information field may be as shown in Table 4.
  • the site information field occupies a bit of 16; wherein, 13 bits are used to indicate the association identifier, 1 bit is used to indicate the feedback category, and 2 bits are used to indicate the number of streams.
  • the first bit of the 11th bit and the 13th bit of the 13th bit collectively indicate the associated identifier;
  • the 12th bit of the 12th bit indicates the feedback category;
  • the 14th to the The 15-bit 2-bit indicates the number of streams. It should be noted that any one of the 13th to 15th bits and 3 bits can be selected together with the 12th bit of the 11th bit.
  • the existing structure of the NDPA frame may also be changed, and the purpose of increasing the AID identifier storage amount is achieved by adjusting the indication indicators in the STA info field.
  • a new indicator can be added to the STA info field to give the STA info field more indication.
  • the generated site information field may be as shown in Table 5, and further includes: one or more of feedback granularity, effective duration, and signal to noise ratio.
  • the generated site information field occupies 24 bits; 16 bits indicate the association identifier, and the remaining bits indicate one or more of the feedback category, the number of streams, the feedback granularity, the effective duration, and the signal to noise ratio. In this way, the STA info field adds more indications.
  • the generated site information field may be as shown in Table 6, and further includes: feedback granularity and signal to noise ratio.
  • the generated site information field occupies 24 bits; wherein, the first (16 bits of the 15th bit indicate the association identifier, the 1st bit of the 16th bit indicates the feedback category, and the 17th to 18th bits of the 2 bit indication The number of feedback streams, the 2nd bit of the 19th to 20th bits indicates the feedback granularity, and the 3rd bit of the 23rd and the 23rd bit indicates the signal to noise ratio.
  • the sending end station sends the empty packet notification to the receiving end station.
  • the receiving end station receives an empty packet notification that includes a site information field.
  • the value in the bit in the receiving station resolution station information field used to indicate the associated identifier is the same as the self-associated identifier.
  • the receiving site performs subsequent channel measurement and measurement data feedback according to the feedback granularity, effective duration, and signal-to-noise ratio of the site information field, as follows:
  • the site information field further includes the feedback granularity
  • the channel measurement is performed according to the granularity indicated by the feedback granularity.
  • the site information field further includes a valid duration, after the receiving site determines that it needs to perform channel feedback, it can save the measurement data within the time range indicated by the effective duration.
  • the receiving station determines that it needs to perform channel feedback, and discards the measurement when the signal to noise ratio of the channel measurement does not meet the signal to noise ratio requirement indicated by the bit indicating the signal to noise ratio. data.
  • the receiving end After receiving the measurement object according to the determination, the receiving end feeds back the corresponding measurement data to the transmitting end station through the ultra-high throughput beamforming compression packet in the subsequent measurement process.
  • the bit used to indicate the association identifier AID in the station information field is changed to at least 13 bits, and at least 1 bit is added with respect to the prior art, and the storage amount of the AID is correspondingly increased.
  • empty packet notifications are used to implement notifications for channel measurement sites.
  • the sender site device 40 provided by the embodiment of the present invention may be applied to the foregoing method. As shown in FIG. 4, the method includes:
  • the generating unit 401 is configured to generate a null packet notification that includes a site information field, where the bit used to indicate the association identifier in the site information field is at least 13 bits.
  • the sending unit 402 is configured to send the null packet notification to the receiving end station, so that the receiving end station determines whether to perform channel measurement feedback according to the association identifier indicated in the station information field.
  • the station information field generated by the generating unit includes not only the bit used to indicate the associated identifier, but also the feedback category and the number of streams.
  • the station information field generated by the generating unit 401 occupies at least 16 bits.
  • the 13th bit of the 12th bit indicates the association identifier; the 13th bit of the 13th bit indicates the feedback category; the 14th to the 15th place 2
  • the bit indicates the number of streams.
  • the 12th bit of the 11th bit indicates the association identifier
  • the 1st bit of the 12th bit indicates the feedback category
  • the 1st bit of the 13th bit indicates the association identifier
  • the 2nd bit of the 14th to 15th bits indicates the number of streams.
  • the generated site information field occupies 24 bits; wherein, 16 bits are used to indicate the association identifier, and the remaining bits are used to indicate one or more of the feedback category, the number of streams, the feedback granularity, the effective duration, and the signal to noise ratio.
  • the bit used in the station information field generated by the generating unit to indicate the associated identifier AID becomes at least 13 bits, and at least 1 bit is added with respect to the prior art, and the storage amount of the AID is correspondingly increased, and the support can be super
  • the notification of the channel measurement site is implemented using the null packet notification.
  • the receiving end station device 50 provided by the embodiment of the present invention may be applied to the foregoing method. As shown in FIG. 5, the method includes:
  • the receiving unit 501 is configured to receive a null packet notification that includes a site information field, where the bit used to indicate the association identifier in the site information field is at least 13 bits.
  • the parsing unit 502 is configured to parse the site information field, and determine whether to perform channel measurement feedback according to the association identifier indicated in the site information field.
  • the number of bits occupied by the station information field received by the receiving unit 501 is at least 16.
  • the station information field received by the receiving unit 501 may further include a bit for indicating a feedback category and a bit for indicating the number of streams.
  • the location occupied by the station information field may be 16; wherein 13 bits are used to indicate the association identifier, 1 bit is used to indicate the feedback category, and 2 bits are used to indicate the number of streams.
  • the parsing unit 502 is configured to parse the information field.
  • the station information field received by the receiving unit 501 further includes: one or more of a feedback granularity, an effective duration, and a signal to noise ratio.
  • the parsing unit of the receiving end station determines that it needs to perform channel feedback, and performs channel measurement according to the granularity indicated by the feedback granularity.
  • the parsing unit of the receiving station determines that it needs to perform channel feedback, and may save the measurement data within the time range indicated by the effective duration.
  • the station information field received by the receiving unit 501 further includes a signal to noise ratio
  • the parsing unit of the receiving station determines that it needs to perform channel feedback, when the signal to noise ratio of the channel measurement does not satisfy the bit indicating the signal to noise ratio
  • the measurement data is discarded.
  • the receiving end station apparatus provided by the embodiment of the present invention adds a bit of at least 13 bits to the associated identifier AID in the received station information field, and adds at least 1 bit to the prior art, and the storage amount of the AID increases accordingly. , can use the empty packet notification to achieve notification of the channel measurement site in a network supporting more than 4096 sites.
  • the service set system provided by the embodiment of the present invention, as shown in FIG. 6, includes:
  • a sender site device 601 configured to generate an empty packet notification including a site information field; wherein, the site information
  • the bit used to indicate the association identifier in the field is at least 13 bits; the null packet notification is sent to the receiving site 602; the receiving site device 602 is configured to receive the null packet notification including the site information field; wherein, the site information field is used
  • the bit indicating the association identifier is at least 13 bits; the station information field is parsed, and whether the channel measurement feedback is performed is determined according to the association identifier indicated in the station information field.
  • the transmitting end station device 601 in this embodiment has the same structure as the transmitting end station device 40 in the previous embodiment, and the receiving end station device 602 has the same structure as the receiving end station device 50 in the previous embodiment, and details are not described herein again. .
  • the bit used to indicate the associated identifier AID in the site information field is changed to at least 13 bits, and at least 1 bit is added with respect to the prior art, and the storage amount of the AID is correspondingly increased, which can be supported.
  • the notification of the channel measurement site is implemented using the null packet notification.

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Abstract

本发明实施例提供的信道测量反馈请求方法、站点装置及服务集系统,涉及通信领域,站点信息字段中用于放置AID的比特数增加。该信道测量反馈请求方法包括:发送端站点生成含有站点信息字段的空包通知;其中,所述站点信息字段中用于指示关联标识的比特位至少为13比特;发送端站点向接收端站点发送所述空包通知,以便所述接收端站点根据所述站点信息字段中指示的关联标识判断是否进行信道测量反馈。本发明实施例用于信道测量。

Description

一种信道测量反馈请求方法、 站点装置及服务集系统 本申请要求于 2011年 10月 31 日提交中国专利局、 申请号为 201110337719. 0、 发 明名称为 "一种信道测量反馈请求方法、 站点装置及服务集系统"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 本发明涉及通信领域, 尤其涉及一种信道测量反馈请求方法、 站点装置及服务集系 统。 发明背景 VHT sounding protocol ( Very high throughput sounding protocol , 超高吞 吐率探测机制) 是 802. l lac 草案中引入的新技术, 它是一种存在于波束成形发起者 (Beamformer) 和波束成形接收者 (Beamformee ) 之间的信道侦测机制。
波束成形发起者的 NDPA (Nul l Data Pocket Announcement , 空包通知) 帧的作 用是请求相应的 STA ( Enabl ing station, 站点) 进行测量反馈。 STA 收到来自波束 成形发起者的 NDPA帧后, 会逐个检查 NDPA帧中 MAC ( Medium access control , 媒 体接入控制) 包的站点信息 (STA Info) 字段里的接入标识符字段的值是否与自己的 AID ( appl ication identifier, 关联标识) 相同, 如果找到相同的 AID 则根据相应 的反馈类别 (Feedback Type ) 字段和流数 ( NC Index ) 字段进行后续的测量, 并通 过超高吞吐率波束成形压縮包 (VHT Compressed Beamforming) 向波束成形发起者反 馈相应的测量信息; 否则, 则意味着找不到相同的 AID, 那么该 STA不在被请求的反 馈者之列。
其中, NDPA帧 MAC帧格式如表 1所示和站点信息字段设置如表 2所示。
Figure imgf000002_0001
表 1 比特位 B0-B 11 B 12 B 13-B 15
字段 AID (关联标识) Feedback Type (反 NC Index (流数) 馈类别)
占用比特 12 1 3
表 2
NDPA帧 MAC帧格式中的一个 STA Info字段对应一个 STA, 站点根据该 AID字段判 断是否需要进行后续的测量。 但在支持超过 4096个站点的网络中指示信道测量的站点 时, 站点信息字段中用于放置 AID的比特数不足。 发明内容 本发明的实施例提供一种信道测量反馈请求方法、 站点装置及服务集系统, 站点 信息字段中用于放置 AID的比特数增加。
为达到上述目的, 本发明的实施例采用如下技术方案:
一方面, 提供一种信道测量反馈请求方法, 包括:
生成含有站点信息字段的空包通知; 其中, 所述站点信息字段中用于指示关联标 识的比特位至少为 13比特;
向接收端站点发送所述空包通知, 以便所述接收端站点根据所述站点信息字段中 指示的关联标识判断是否进行信道测量反馈。
一方面, 提供一种信道测量反馈请求方法, 包括:
接收含有站点信息字段的空包通知; 其中, 所述站点信息字段中用于指示关联标 识的比特位至少为 13比特;
解析所述站点信息字段, 根据所述站点信息字段中指示的关联标识判断自身是否 进行信道测量反馈。
一方面, 提供一种发送端站点装置, 包括:
生成单元, 用于生成含有站点信息字段的空包通知; 其中, 所述站点信息字段中 用于指示关联标识的比特位至少为 13比特;
发送单元, 用于向接收端站点发送所述空包通知, 以便所述接收端站点根据所述 站点信息字段中指示的关联标识判断是否进行信道测量反馈。 一方面, 提供一种接收端站点装置, 包括:
接收单元, 用于接收含有站点信息字段的空包通知; 其中, 所述站点信息字段中 用于指示关联标识的比特位至少为 13比特;
解析单元, 用于解析所述站点信息字段, 根据所述站点信息字段中指示的关联标 识判断自身是否进行信道测量反馈。
一方面, 提供一种服务集系统, 包括:
发送端站点装置, 用于生成含有站点信息字段的空包通知; 其中, 所述站点信息 字段中用于指示关联标识的比特位至少为 13比特; 向接收端站点发送所述空包通知; 接收端站点装置, 用于接收含有站点信息字段的空包通知; 其中, 所述站点信息 字段中用于指示关联标识的比特位至少为 13 比特; 解析所述站点信息字段, 根据所 述站点信息字段中指示的关联标识判断自身是否进行信道测量反馈。
本发明实施例提供的信道测量方法信道测量反馈请求方法、 站点装置及服务集系 统, 发送端站点生成含有站点信息字段的空包通知; 其中, 所述站点信息字段中用于指 示关联标识的比特位至少为 13比特; 发送端站点向接收端站点发送所述空包通知, 以便 所述接收端站点根据所述站点信息字段中指示的关联标识判断是否进行信道测量反馈。 这样, 站点信息字段中用于指示关联标识 AID的比特位变为至少 13比特, 相对于现有技 术增加了至少 1比特, AID的存放量相应增加, 能够在支持超过 4096个站点的网络中, 使 用空包通知实现信道测量站点的通知。 附图简要说明 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的前提 下, 还可以根据这些附图获得其他的附图。
图 1为本发明实施例提供的一种信道测量反馈请求方法流程图;
图 2为本发明实施例提供的另一种信道测量反馈请求方法流程图;
图 3为本发明实施例提供的又一种信道测量反馈请求方法流程图;
图 4为本发明实施例提供的发送端站点装置结构示意图;
图 5为本发明实施例提供的接收端站点装置结构示意图; 图 6为本发明实施例提供的服务集系统结构示意图。
实鮮发明的方式 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。
本发明实施例提供的信道测量反馈请求方法, 如图 1所示, 其步骤包括: S10K 发送端站点生成含有站点信息字段的空包通知; 其中, 所述站点信息字段 中用于指示关联标识的比特位至少为 13比特。
S102、 发送端站点向接收端站点发送该空包通知, 以便接收端站点根据站点信息 字段中指示的关联标识判断是否进行信道测量反馈。
此外, 站点信息字段中还可以包括: 反馈类别和流数。
这样, 站点信息字段中用于指示关联标识 AID的比特位变为至少 13 比特, 相对 于现有技术增加了至少 1比特, AID的存放量相应增加, 能够在支持超过 4096个站点 的网络中, 使用空包通知实现信道测量站点的通知。
本发明另一实施例提供的信道测量反馈请求方法, 如图 2所示, 其步骤包括:
S20K 接收端站点接收含有站点信息字段的空包通知; 其中, 站点信息字段中用 于指示关联标识的比特位至少为 13比特。
S202、 接收端站点解析该站点信息字段, 根据该站点信息字段中指示的关联标识 判断自身是否进行信道测量反馈。
这样, 站点信息字段中用于指示关联标识 AID的比特位变为至少 13 比特, 相对 于现有技术增加了至少 1比特, AID的存放量相应增加, 能够在支持超过 4096个站点 的网络中, 使用空包通知实现信道测量站点的通知。
本发明又一实施例提供的信道测量反馈请求方法, 如图 3所示, 其步骤包括:
S30K 发送端站点生成含有站点信息字段的空包通知。 其中, 站点信息字段中用 于指示关联标识的比特位至少为 13比特。
进一步地, 该站点信息字段中还包括: 反馈类别和流数。
该站点信息字段占用的比特数至少为 16。示例的, 生成的站点信息字段可以如表 3所示, 站点信息字段占用的比特位为 16; 其中, 用 13比特指示关联标识, 用 1 比 特指示反馈类别, 用 2 比特指示流数。 具体的, 在该站点信息字段占用的 16位比特 中, 第 (Γ第 12位的 13比特指示关联标识; 第 13位的 1比特指示反馈类别; 第 14~ 第 15位的 2比特指示流数。
Figure imgf000006_0001
表 3 或者, 生成的站点信息字段可以如表 4所示, 站点信息字段占用的比特位为 16; 其中, 用 13比特指示关联标识, 用 1 比特指示反馈类别, 用 2比特指示流数。 具体 的, 在该站点信息字段占用的 16位比特中, 第 (Γ第 11位的 12比特和第 13位的 1比 特共同指示关联标识; 第 12位的 1比特指示反馈类别; 第 14~第 15位的 2比特指示 流数。 需要说明的是, 可以选择第 13~第 15位 3个比特中的任一比特与第 (Γ第 11位 的 12比特共同指示关联标识。
Figure imgf000006_0002
表 4 在本发明实施例提供的信道测量反馈请求方法中, 也可以改变 NDPA帧的现有结 构, 通过对 STA info 字段中各个指示标识的调整, 达到增加 AID标示符存放量的目 的, 与此同时, 可以在 STA info 字段中加入新的指示标识, 赋予 STA info 字段更 多的指示功能。
示例的, 生成的站点信息字段可以如表 5所示, 还包括: 反馈粒度、 有效时长、 信噪比中的一项或多项。 例如, 生成的站点信息字段占用的比特位为 24; 其中, 用 16比特指示关联标识, 用其余比特指示反馈类别、 流数、 反馈粒度、 有效时长、 信噪 比中的一项或多项。 这样, STA info 字段就增加了更多的指示功能。
Figure imgf000007_0002
Figure imgf000007_0001
示例的, 生成的站点信息字段可以如表 6所示, 还包括: 反馈粒度和信噪比。 例 如, 生成的站点信息字段占用的比特位为 24; 其中, 第(Γ第 15位的 16个比特指示 关联标识, 第 16位的 1比特指示反馈类别, 第 17~第 18位的 2比特指示反馈流数, 第 19~第 20位的 2比特指示反馈粒度, 第 2广第 23位的 3比特指示信噪比。
Figure imgf000007_0003
表 6
5302、 发送端站点向接收端站点发送该空包通知。
5303、 接收端站点接收含有站点信息字段的空包通知。
S304、 接收端站点解析站点信息字段中用于指示关联标识的比特位中的值是否与 自身关联标识相同。
若站点信息字段如上述表 5所示,则接收端站点根据站点信息字段的的反馈粒度、 有效时长、 信噪比, 进行后续的信道测量与测量数据反馈, 具体如下:
当站点信息字段中还包括反馈粒度时, 接收端站点确定自身需要进行信道反馈 后, 根据反馈粒度指示的粒度进行信道测量。 当站点信息字段中还包括有效时长时, 接收端站点确定自身需要进行信道反馈 后, 可以在有效时长指示的时间范围内保存测量数据。
当站点信息字段中还包括信噪比时, 接收端站点确定自身需要进行信道反馈后, 当信道测量的信噪比不满足指示信噪比的比特位所指示的信噪比要求时, 丢弃测量数 据。
S305、 接收端根据确定自身为请求测量对象后, 在随后的测量过程中通过超高吞 吐率波束成形压縮包向发送端站点反馈相应的测量数据。
本发明实施例提供的信道测量反馈请求方法, 站点信息字段中用于指示关联标识 AID的比特位变为至少 13比特, 相对于现有技术增加了至少 1比特, AID的存放量相 应增加, 能够在支持超过 4096 个站点的网络中, 使用空包通知实现信道测量站点的 通知。
对应上述方法实施例, 本发明实施例提供的发送端站点装置 40, 可以应用在上述 方法中, 如图 4所示, 包括:
生成单元 401, 用于生成含有站点信息字段的空包通知; 其中, 站点信息字段中 用于指示关联标识的比特位至少为 13比特。
发送单元 402, 用于向接收端站点发送该空包通知, 以便接收端站点根据站点信 息字段中指示的关联标识判断是否进行信道测量反馈。
该生成单元生成的站点信息字段不仅包括用于指示关联标识的比特位, 还可以包 括: 反馈类别和流数。
该生成单元 401生成的站点信息字段占用的比特数至少为 16。
示例性的, 生成单元 401生成的站点信息字段占用的 16位比特中, 第 (Γ第 12位 的 13比特指示关联标识; 第 13位的 1比特指示反馈类别; 第 14~第 15位的 2比特指 示流数。
或者, 生成单元 301生成的站点信息字段占用的 16位比特中, 第(Γ第 11位的 12比特指示关联标识; 第 12位的 1比特指示反馈类别; 第 13位的 1比特指示关联标 识; 第 14~第 15位的 2比特指示流数。
或者, 生成的站点信息字段占用的比特位为 24; 其中, 用 16比特指示关联标识, 用其余比特指示反馈类别、 流数、 反馈粒度、 有效时长、 信噪比中的一项或多项。
这样, 生成单元生成的站点信息字段中用于指示关联标识 AID的比特位变为至少 13比特, 相对于现有技术增加了至少 1比特, AID的存放量相应增加, 能够在支持超 过 4096个站点的网络中, 使用空包通知实现信道测量站点的通知。
对应上述方法实施例, 本发明实施例提供的接收端站点装置 50, 可以应用在上述 方法中, 如图 5所示, 包括:
接收单元 501, 用于接收含有站点信息字段的空包通知; 其中, 站点信息字段中 用于指示关联标识的比特位至少为 13比特。
解析单元 502, 用于解析该站点信息字段, 根据该站点信息字段中指示的关联标 识判断自身是否进行信道测量反馈。
接收单元 501接收到的站点信息字段占用的比特数至少为 16。
进一步地, 接收单元 501接收到的站点信息字段中还可以包括用于指示反馈类别 的比特位和用于指示流数的比特位。
示例性的, 站点信息字段占用的比特位可以为 16; 其中, 用 13比特指示关联标 识, 用 1比特指示反馈类别, 用 2比特指示流数。
若接收到的站点信息字段占用 16比特, 且第 (Γ第 11位的 12比特和第 13位的 1 比特共同指示关联标识; 第 12位的 1比特指示反馈类别; 第 14~第 15位的 2比特指 示流数时, 解析单元 502, 用于解析所述信息字段。
进一步地,接收单元 501接收到的站点信息字段中还包括: 反馈粒度、有效时长、 信噪比中的一项或多项。
当接收单元 501接收的站点信息字段中还包括反馈粒度时, 接收端站点的解析单 元确定自身需要进行信道反馈后, 根据反馈粒度指示的粒度进行信道测量。
当接收单元 501接收的站点信息字段中还包有效时长时, 接收端站点的解析单元 确定自身需要进行信道反馈后, 可以在有效时长指示的时间范围内保存测量数据。
当接收单元 501接收的站点信息字段中还包括信噪比时, 接收端站点的解析单元 确定自身需要进行信道反馈后, 当信道测量的信噪比不满足指示信噪比的比特位所指 示的信噪比要求时, 丢弃测量数据。
本发明实施例提供的接收端站点装置, 接收到的站点信息字段中用于指示关联标 识 AID的比特位变为至少 13比特, 相对于现有技术增加了至少 1比特, AID的存放量 相应增加, 能够在支持超过 4096 个站点的网络中, 使用空包通知实现信道测量站点 的通知。
本发明实施例提供的服务集系统, 如图 6所示, 包括:
发送端站点装置 601, 用于生成含有站点信息字段的空包通知; 其中, 站点信息 字段中用于指示关联标识的比特位至少为 13比特; 向接收端站点 602发送空包通知; 接收端站点装置 602, 用于接收含有站点信息字段的空包通知; 其中, 站点信息 字段中用于指示关联标识的比特位至少为 13 比特; 解析站点信息字段, 根据站点信 息字段中指示的关联标识判断自身是否进行信道测量反馈。
本实施例中的发送端站点装置 601与上一实施例中的发送端站点装置 40结构相 同, 接收端站点装置 602与上一实施例中的接收端站点装置 50结构相同, 在此不再 赘述。
本发明实施例提供的服务集系统, 站点信息字段中用于指示关联标识 AID的比特 位变为至少 13比特, 相对于现有技术增加了至少 1比特, AID的存放量相应增加, 能 够在支持超过 4096个站点的网络中, 使用空包通知实现信道测量站点的通知。
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

权利要求
1、 一种信道测量反馈请求方法, 其特征在于, 包括:
生成含有站点信息字段的空包通知; 其中, 所述站点信息字段中用于指示关联标 识的比特位至少为 13比特;
向接收端站点发送所述空包通知, 以便所述接收端站点根据所述站点信息字段中 指示的关联标识判断是否进行信道测量反馈。
2、 根据权利要求 1 所述的方法, 其特征在于, 所述站点信息字段占用的比特数 至少为 16。
3、 根据权利要求 2所述的方法, 其特征在于,
所述站点信息字段中还包括: 反馈类别和流数。
4、 根据权利要求 3 所述的方法, 其特征在于, 所述站点信息字段占用的比特位 为 16; 其中, 用 13比特指示关联标识, 用 1比特指示反馈类别, 用 2比特指示流数。
5、 根据权利要求 2所述的方法, 其特征在于,
所述站点信息字段中还包括: 反馈粒度、 有效时长、 信噪比中的一项或多项。
6、 一种信道测量反馈请求方法, 其特征在于, 包括:
接收含有站点信息字段的空包通知; 其中, 所述站点信息字段中用于指示关联标 识的比特位至少为 13比特;
解析所述站点信息字段, 根据所述站点信息字段中指示的关联标识判断自身是否 进行信道测量反馈。
7、 根据权利要求 6 所述的方法, 其特征在于, 所述站点信息字段占用的比特数 至少为 16。
8、 根据权利要求 7所述的方法, 其特征在于,
所述站点信息字段中还包括: 反馈类别和流数。
9、 根据权利要求 8 所述的方法, 其特征在于, 所述站点信息字段占用的比特位 为 16; 其中, 用 13比特指示关联标识, 用 1比特指示反馈类别, 用 2比特指示流数。
10、 根据权利要求 7所述的方法, 其特征在于,
所述站点信息字段中还包括: 反馈粒度、 有效时长、 信噪比中的一项或多项。
11、 一种发送端站点装置, 其特征在于, 包括:
生成单元, 用于生成含有站点信息字段的空包通知; 其中, 所述站点信息字段中 用于指示关联标识的比特位至少为 13比特;
发送单元, 用于向接收端站点发送所述空包通知, 以便所述接收端站点根据所述 站点信息字段中指示的关联标识判断是否进行信道测量反馈。
12、 根据权利要求 11 所述的装置, 其特征在于, 所述生成单元生成的所述站点 信息字段占用的比特数至少为 16。
13、 根据权利要求 12 所述的装置, 其特征在于, 所述生成单元生成的所述站点 信息字段中还包括: 反馈类别和流数。
14、 根据权利要求 13 所述的装置, 其特征在于, 所述生成单元生成的所述站点 信息字段占用的比特位为 16; 其中, 用 13比特指示关联标识, 用 1比特指示反馈类 别, 用 2比特指示流数。
15、 根据权利要求 12 所述的装置, 其特征在于, 所述生成单元生成的所述站点 信息字段中还包括: 反馈粒度、 有效时长、 信噪比中的一项或多项。
16、 一种接收端站点装置, 其特征在于, 包括:
接收单元, 用于接收含有站点信息字段的空包通知; 其中, 所述站点信息字段中 用于指示关联标识的比特位至少为 13比特;
解析单元, 用于解析所述站点信息字段, 根据所述站点信息字段中指示的关联标 识判断自身是否进行信道测量反馈。
17、 根据权利要求 16所述的装置, 其特征在于,
所述接收单元接收到的所述站点信息字段占用的比特数至少为 16。
18、 根据权利要求 17所述的装置, 其特征在于,
所述接收单元接收到的所述站点信息字段中还包括: 反馈类别和流数。
19、 根据权利要求 18 所述的装置, 其特征在于, 所述接收单元接收到的所述站 点信息字段占用的比特位为 16; 其中, 用 13比特指示关联标识, 用 1比特指示反馈 类别, 用 2比特指示流数。
20、 根据权利要求 18 所述的装置, 其特征在于, 所述接收单元接收到的所述站 点信息字段中还包括: 反馈粒度、 有效时长、 信噪比中的一项或多项。
21、 一种服务集系统, 其特征在于, 包括:
发送端站点装置, 用于生成含有站点信息字段的空包通知; 其中, 所述站点信息 字段中用于指示关联标识的比特位至少为 13比特; 向接收端站点发送所述空包通知; 接收端站点装置, 用于接收含有站点信息字段的空包通知; 其中, 所述站点信息 字段中用于指示关联标识的比特位至少为 13 比特; 解析所述站点信息字段, 根据所 述站点信息字段中指示的关联标识判断自身是否进行信道测量反馈。
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