WO2016041303A1 - 一种无线局域网数据传输方法及装置 - Google Patents
一种无线局域网数据传输方法及装置 Download PDFInfo
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- WO2016041303A1 WO2016041303A1 PCT/CN2015/070288 CN2015070288W WO2016041303A1 WO 2016041303 A1 WO2016041303 A1 WO 2016041303A1 CN 2015070288 W CN2015070288 W CN 2015070288W WO 2016041303 A1 WO2016041303 A1 WO 2016041303A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/2603—Signal structure ensuring backward compatibility with legacy system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- a fourth aspect provides a wireless local area network communication device, where the communication device is disposed at a station STA, including:
- the control domain in the PLCP header field in the PPDU of the AP carries the identification information, the duration information of the AP, and the identifier of the at least one STA.
- the STA can only parse the control domain of the PLCP header field.
- the identifier information of the AP, the duration information, and the identifier of the at least one STA may be obtained, so that the STA may determine, according to the identifier of the AP and the identifier of the at least one STA, whether the PPDU control domain includes the identifier of the STA and the wild STA.
- the STA determines that the STA in the PPDU control domain does not include its own STA and the wildcard STA identifier.
- the STA configures the NAV according to the duration information. This process only parses the control domain of the PPDU, thereby improving the data. Transmission efficiency.
- FIG. 6 is a schematic diagram of a frame structure of a PPDU according to an embodiment of the present invention.
- the duration information mentioned in the embodiment of the present invention is used to enable the STA to set its own NAV using the data, which can be represented by 15 bits.
- the transceiver unit 702 receives the uplink PPDU sent by the STA.
- the data domain of the uplink PPDU carries the uplink MPDU.
- the MAC header field of the uplink MPDU itself does not include the sending address, the receiving address, and the duration information.
- the memory 903 is configured to store MPDUs and PPDUs.
- the code for executing the above-described flow may also be stored in the memory 903, and the processor 901 may be configured to perform the above-described flow.
- the data field of the PPDU further carries the uplink data information, and receives the uplink MPDU sent by the STA in the data domain according to the resource indication information in the PPDU.
- the upstream MPDU There are also two ways to generate this upstream MPDU, as follows:
- the transceiver 902 receives the uplink PPDU sent by the STA.
- the data domain of the uplink PPDU carries the uplink MPDU.
- the MAC header field of the uplink MPDU itself does not include the sending address, the receiving address, and the duration information.
- the MAC address field of the MPDU does not include the sending address, the receiving address, and the duration information.
- the MAC header field of the MPDU carried in the data field of the PPDU is not included.
- the processing unit obtains the sending address and the receiving address of the downlink MPDU according to the identifier of the AP in the control domain of the received PPDU and the identifier of the STA.
- the MAC header field may further include at least an address 3 field and a sequence control field, as shown in FIG. 13c.
- the embodiment of the present invention provides a wireless local area network data transmission method, which is applicable to an AP side, and the flow can be implemented by the foregoing apparatus shown in FIG. 7 or FIG.
- FIG. 11 a schematic diagram of a data transmission process is provided according to an embodiment of the present invention, including the following steps:
- the complete MPDU is still configured to the PPDU data in the OFDMA transmission. In the domain.
- the MAC layer forms an uplink MPDU, that is, the MAC address field of the MPDU does not include the sending address, the receiving address, and the duration information; at this time, the sending MAC header field does not include the sending address, the receiving address, and the duration information.
- uplink MPDU when the MAC layer forms an uplink MPDU, that is, the MAC address field of the MPDU does not include the sending address, the receiving address, and the duration information; at this time, the sending MAC header field does not include the sending address, the receiving address, and the duration information.
- control domain in the PLCP header field in the PPDU in the embodiment of the present invention carries the identification information, the duration information, and the identifier of the at least one STA of the AP, so that the STA can only parse the control domain of the PLCP header field.
- the identification information of the AP, the duration information, and the identifier of at least one STA can be obtained.
- the MPDU when the MPDU is formed in the MAC layer, the MPDU is the same as the prior art, and the MAC header field of the MPDU includes a sending address, a receiving address, and duration information.
- the PHY layer forms a PPDU
- the M header is in the MAC header field.
- the sending address, the receiving address, and the duration information are removed, and then the MPDU that does not include the sending address, the receiving address, and the duration information in the non-MAC header field is placed in the data field of the PPDU.
- the MAC layer forms an uplink MPDU, that is, the MAC address field of the MPDU does not include the sending address, the receiving address, and the duration information; at this time, the sending MAC header field does not include the sending address, the receiving address, and the duration information.
- uplink MPDU when the MAC layer forms an uplink MPDU, that is, the MAC address field of the MPDU does not include the sending address, the receiving address, and the duration information; at this time, the sending MAC header field does not include the sending address, the receiving address, and the duration information.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- the PLCP header field includes the receiving address but does not include the duration
- the data field of the uplink PPDU may carry the uplink MPDU except the sending address and the receiving address information in the uplink MPDU.
- the PLCP header field of the uplink PPDU does not include a sending address and receiving One or any combination of the address or the duration
- the data field of the uplink PPDU carries an uplink MPDU
- the MAC header field of the uplink MPDU itself does not contain at least the sending address information.
Abstract
Description
Claims (30)
- 一种无线局域网通信装置,所述通信装置设置于接入点AP,其特征在于,包括:处理单元,用于生成无线局域网的物理层协议数据单元PPDU,所述PPDU至少包括物理会聚协议PLCP头域和数据域,所述PLCP头域包括前导和控制域,其中,所述控制域至少承载有所述AP的标识,至少一个站点STA的标识,和持续时间信息;收发单元,用于发送所述生成的PPDU。
- 根据权利要求1所述的装置,其特征在于,所述处理单元生成的所述PPDU的所述数据域中,承载有下行媒体接入控制协议数据单元MPDU中除所述下行MPDU的MAC头域中的发送地址,接收地址和持续时间信息以外的所述下行MPDU。
- 根据权利要求1所述的装置,其特征在于,所述处理单元生成的所述PPDU的所述数据域中,承载有下行MPDU,并且所述下行MPDU本身的MAC头域中不包含发送地址,接收地址和持续时间信息。
- 如权利要求1-3任一所述的装置,其特征在于,所述收发单元还用于接收STA发送的上行PPDU,所述上行PPDU的数据域中,承载有上行MPDU中除所述上行MPDU的MAC头域中的发送地址,接收地址和持续时间信息以外的所述上行MPDU。
- 如权利要求1-3任一所述的装置,其特征在于,所述收发单元还用于接收STA发送的上行PPDU,所述上行PPDU的数据域中,承载有上行MPDU,所述上行MPDU本身的MAC头域中不包含发送地址,接收地址和持续时间信息。
- 如权利要求2-5任一所述的装置,其特征在于,所述收发单元还用于采用正交频分多址OFDMA技术传输所述数据域,并且,所述数据域中承载的 所述上行MPDU或者所述下行MPDU中的所述MAC头域中,还包括OFDMA控制字段。
- 如权利要求6所述的装置,其特征在于,所述处理单元,具体用于生成在一个OFDMA传输机会TXOP中的N个连续的PPDU,其中针对所述N个连续的PPDU中的第i帧,所述PLCP头域中的控制域的持续时间信息所指示的时间长度值为从所述第i帧开始传输至第N帧传输结束时的总时长,i取值范围为[1,N]。
- 如权利要求2-7任一所述的装置,其特征在于,所述上行MPDU或者所述下行MPDU中的所述MAC头域中,至少还包括帧控制字段,所述帧控制字段包括:协议版本的指示位,帧的类型的指示位,或者,帧的子类型的指示位,上述三种指示位的值分别为新增的数值。
- 一种接入点AP,其特征在于,包括权利要求1-8任一所述的通信装置,还包括:射频模块,用于接收所述收发单元发送的所述PPDU,将其调制为射频信号并发送。
- 一种无线局域网通信装置,所述通信装置设置于站点STA,其特征在于,包括:收发单元,用于接收接入点AP发送的无线局域网的物理层协议数据单元PPDU,所述PPDU至少包括物理会聚协议PLCP头域和数据域,所述PLCP头域包括前导和控制域,其中,所述控制域至少承载有AP的标识信息,至少一个站点STA的标识和持续时间信息;处理单元,用于解析得到所述PPDU的控制域中的所述AP的标识信息,所述至少一个站点STA的标识和所述持续时间信息。
- 根据权利要求10所述的装置,其特征在于,所述接收的PPDU的数据域中,承载有下行媒体接入控制协议数据单元MPDU中除所述下行MPDU的MAC头域中的发送地址,接收地址和持续时间信息以外的所述下行MPDU;所述处理单元还用于根据所述接收的PPDU的控制域中的所述AP的标识和站点STA的标识得到所述下行MPDU的MAC头域中的发送地址和接收地址。
- 根据权利要求10所述的装置,其特征在于,所述接收的所述PPDU的所述数据域中,承载有下行媒体接入控制协议数据单元MPDU,并且所述下行MPDU本身的MAC头域中不包含发送地址,接收地址和持续时间信息;所述处理单元还用于根据所述接收的PPDU的控制域中的所述AP的标识和站点STA的标识得到所述下行MPDU的发送地址和接收地址。
- 如权利要求10-12任一所述的装置,其特征在于,所述处理单元还用于生成上行PPDU,所述所述上行PPDU的数据域中,承载有上行MPDU中除所述上行MPDU的MAC头域中的发送地址,接收地址和持续时间信息以外的所述上行MPDU;所述收发单元还用于发送所述上行PPDU。
- 如权利要求10-12任一所述的装置,其特征在于,所述处理单元还用于生成上行PPDU,所述上行PPDU的数据域中,承载有上行MPDU,所述上行MPDU本身的MAC头域中不包含发送地址,接收地址和持续时间信息。
- 根据权利要求10-14任一所述的装置,其特征在于,所述处理单元,还用于当确定解析得到的所述PPDU中的所述至少一个站点STA的标识中不包括所述通信装置所在的STA标识,以及不包括通配的STA标识时,根据所述解析得到的持续时间信息配置所述通信装置所在的STA的NAV。
- 一种站点STA,其特征在于,所述STA包括如权利要求10-15任一所述的通信装置,还包括:射频模块,用于接收所述AP发送的所述PPDU的射频信号,并将其解调为所述PPDU,并发送给所述收发单元。
- 一种无线局域网数据传输方法,其特征在于,包括:生成无线局域网的物理层协议数据单元PPDU,所述PPDU至少包括物理会聚协议PLCP头域和数据域,所述PLCP头域包括前导和控制域,其中,所述控制域至少承载有所述AP的标识,至少一个站点STA的标识,和持续时间信 息;发送所述生成的PPDU。
- 根据权利要求17所述的方法,其特征在于,所述生成的PPDU的所述数据域中,承载有下行媒体接入控制协议数据单元MPDU中除所述下行MPDU的MAC头域中的发送地址,接收地址和持续时间信息以外的所述下行MPDU。
- 根据权利要求17所述的方法,其特征在于,所述生成的PPDU的所述数据域中,承载有下行媒体接入控制协议数据单元MPDU,并且所述下行MPDU本身的MAC头域中不包含发送地址,接收地址和持续时间信息。
- 如权利要求17-19任一所述的方法,其特征在于,所述发送所述生成的PPDU之后,还包括:接收STA发送的上行PPDU,所述上行PPDU的数据域中,承载有上行MPDU中除所述上行MPDU的MAC头域中的发送地址,接收地址和持续时间信息以外的所述上行MPDU。
- 如权利要求17-19任一所述的方法,其特征在于,所述发送所述生成的PPDU之后,还包括:接收STA发送的上行PPDU,所述上行PPDU的数据域中,承载有上行MPDU,所述上行MPDU本身的MAC头域中不包含发送地址,接收地址和持续时间信息。
- 如权利要求18-21任一所述的方法,其特征在于,所述发送所述生成的PPDU,具体包括:采用正交频分多址OFDMA技术发送所述生成的PPDU的数据域,并且,所述数据域中承载的所述上行MPDU或者所述下行MPDU中的所述MAC头域中,还包括OFDMA控制字段。
- 如权利要求22所述的方法,其特征在于,具体用于生成在一个OFDMA传输机会TXOP中的N个连续的PPDU,其中针对所述N个连续的PPDU中的第i帧,所述PLCP头域中的控制域的持续时间信息所指示的时间长度值为从所 述第i帧开始传输至第N帧传输结束时的总时长,i取值范围为[1,N]。
- 如权利要求18-23任一所述的方法,其特征在于,所述上行MPDU或者所述下行MPDU中的所述MAC头域中,至少还包括帧控制字段,所述帧控制字段包括:协议版本的指示位,帧的类型的指示位,或者,帧的子类型的指示位,上述三种指示位的值分别为新增的数值。
- 一种无线局域网数据传输方法,其特征在于,包括:接收接入点AP发送的无线局域网的物理层协议数据单元PPDU,所述PPDU至少包括物理会聚协议PLCP头域和数据域,所述PLCP头域包括前导和控制域,其中,所述控制域至少承载有AP的标识信息,至少一个站点STA的标识和持续时间信息;解析得到所述PPDU的控制域中的所述AP的标识信息,所述至少一个站点STA的标识和所述持续时间信息。
- 根据权利要求25所述的方法,其特征在于,所述接收的PPDU的数据域中,承载有下行媒体接入控制协议数据单元MPDU中除所述下行MPDU的MAC头域中的发送地址,接收地址和持续时间信息以外的所述下行MPDU;所述解析得到所述PPDU的控制域中的所述AP的标识信息,所述至少一个站点STA的标识和所述持续时间信息之后,还包括:根据所述接收的PPDU的控制域中的所述AP的标识和站点STA的标识得到所述下行MPDU的MAC头域中的发送地址和接收地址。
- 根据权利要求25所述的方法,其特征在于,所述接收的所述PPDU的所述数据域中,承载有下行媒体接入控制协议数据单元MPDU,并且所述下行MPDU本身的MAC头域中不包含发送地址,接收地址和持续时间信息;所述解析得到所述PPDU的控制域中的所述AP的标识信息,所述至少一个站点STA的标识和所述持续时间信息之后,还包括:根据所述接收的PPDU的控制域中的所述AP的标识和站点STA的标识得到所述下行MPDU的发送地址和接收地址。
- 如权利要求25-27任一所述的方法,其特征在于,所述解析得到所述PPDU的控制域中的所述AP的标识信息,所述至少一个站点STA的标识和所述持续时间信息之后,还包括:生成上行PPDU,所述所述上行PPDU的数据域中,承载有上行MPDU中除所述上行MPDU的MAC头域中的发送地址,接收地址和持续时间信息以外的所述上行MPDU;所述收发单元还用于发送所述上行PPDU。
- 如权利要求25-27任一所述的方法,其特征在于,所述解析得到所述PPDU的控制域中的所述AP的标识信息,所述至少一个站点STA的标识和所述持续时间信息之后,还包括:生成上行PPDU,所述上行PPDU的数据域中,承载有上行MPDU,所述上行MPDU本身的MAC头域中不包含发送地址,接收地址和持续时间信息。
- 根据权利要求25-29任一所述的方法,其特征在于,所述解析得到所述PPDU的控制域中的所述AP的标识信息,所述至少一个站点STA的标识和所述持续时间信息之后,还包括:当确定解析得到的所述PPDU中的所述至少一个站点STA的标识中不包括自身STA标识,以及通配的STA标识时,根据所述解析得到的持续时间信息配置自身的NAV。
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15841393.0T PL3188380T3 (pl) | 2014-09-19 | 2015-01-07 | Sposób i urządzenie do bezprzewodowej transmisji danych w sieci lokalnej |
KR1020177010377A KR101970082B1 (ko) | 2014-09-19 | 2015-01-07 | 무선 근거리 통신망 데이터 전송 방법 및 장치 |
EP23169373.0A EP4250656A3 (en) | 2014-09-19 | 2015-01-07 | Wireless local area network data transmission method and device |
CN201580049761.9A CN107078790B (zh) | 2014-09-19 | 2015-01-07 | 一种无线局域网数据传输方法及装置 |
EP15841393.0A EP3188380B1 (en) | 2014-09-19 | 2015-01-07 | Wireless local area network data transmission method and device |
JP2017515688A JP6856524B2 (ja) | 2014-09-19 | 2015-01-07 | ワイヤレスローカルエリアネットワークデータ送信方法および装置 |
BR112017005503A BR112017005503A2 (pt) | 2014-09-19 | 2015-01-07 | método e aparelho de transmissão de dados de rede de área local sem fio |
ES15841393T ES2957215T3 (es) | 2014-09-19 | 2015-01-07 | Método y dispositivo de transmisión de datos de red de área local inalámbrica |
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US18/518,112 US20240097953A1 (en) | 2014-09-19 | 2023-11-22 | Wireless local area network data transmission method and apparatus |
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EP4250656A3 (en) | 2023-11-29 |
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