WO2017063421A1

WO2017063421A1 - Method, apparatus and system for compressing media access control packet header

Info

Publication number: WO2017063421A1
Application number: PCT/CN2016/090802
Authority: WO
Inventors: 罗俊; 于健; 张佳胤
Original assignee: 华为技术有限公司
Priority date: 2015-10-13
Filing date: 2016-07-21
Publication date: 2017-04-20
Also published as: CN106572198B; CN106572198A

Abstract

Embodiments of the present invention provide a method, apparatus and system for compressing a media access control packet header. The method for compressing a MAC packet header in the present invention comprises: generating a media access control (MAC) packet header, a format of the MAC packet header being a format of the MAC packet header after bytes occupied by the MAC packet header are compressed; encapsulating the MAC packet header and a MAC frame body into a physical protocol data unit (PPDU); and sending the PPDU to at least one station (STA). In the embodiments of the present invention, by generating a MAC packet header and compressing bytes occupied by the MAC packet header, address overheads of the MAC packet header are reduced and the system efficiency is improved.

Description

媒介访问控制包头压缩方法、装置及***Media access control header compression method, device and system

本申请要求于2015年10月13日提交中国专利局、申请号为201510671121.3、发明名称为“媒介访问控制包头压缩方法、装置及***”的CN专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of the CN patent application filed on October 13, 2015, the Chinese Patent Office, Application No. 201510671121.3, entitled "Media Access Control Header Compression Method, Apparatus and System", the entire contents of which are incorporated by reference. In this application.

技术领域Technical field

本发明实施例涉及通信技术，尤其涉及一种媒介访问控制包头压缩方法、装置及***。The embodiments of the present invention relate to communication technologies, and in particular, to a medium access control packet header compression method, apparatus, and system.

背景技术Background technique

随着移动互联网的发展和智能终端的普及，数据流量呈现出爆发式的增长趋势。无线局域网(Wireless Local Area Network，简称：WLAN)凭借其在高速率和低成本方面的优势，成为当今主流的移动宽带接入技术之一，其相关协议电气和电子工程师协会(Institute of Electrical and Electronics Engineers，简称：IEEE)802.11ac和802.11n中规定的媒介访问控制(Media Access Control，简称：MAC)包头的内容如图1所示，地址(Address)1表示接收地址(Receive Address，简称：RA)，地址2表示发送地址(Transmit Address，简称：TA)，地址3表示源地址，地址4表示目的地址，各占用6个字节。With the development of mobile Internet and the popularity of smart terminals, data traffic has shown an explosive growth trend. Wireless Local Area Network (WLAN) is one of the mainstream mobile broadband access technologies with its advantages in high speed and low cost. Its related protocol is Institute of Electrical and Electronics. Engineers, abbreviation: IEEE) The contents of the Media Access Control (MAC) header specified in 802.11ac and 802.11n are shown in Figure 1. The address 1 indicates the Receive Address (RA). ), address 2 indicates a transmission address (Transmit Address, abbreviated as TA), address 3 indicates a source address, and address 4 indicates a destination address, each occupying 6 bytes.

下一代WLAN***的协议IEEE802.11ax为了提升时频资源利用率，引入正交频分多址(Orthogonal Frequency Division Multiple Access，简称：OFDMA)技术，接入点(Access Point，简称：AP)可以在不同的时频资源上与不同的站点(Station，简称：STA)进行上下行传输。IEEE802.11ax, a protocol for the next-generation WLAN system, introduces Orthogonal Frequency Division Multiple Access (OFDMA) technology to improve time-frequency resource utilization. Access Point (AP) can be used. Upstream and downlink transmissions are performed on different time-frequency resources with different stations (Station, abbreviated as STA).

但是，如果在引入了OFDMA技术的WLAN***中继续使用IEEE802.11ac和802.11n规定的MAC包头，由于AP同时会调度多个STA，MAC包头中将会出现多组RA和TA，导致MAC包头的地址开销增大，影响***性能。However, if the MAC header specified by IEEE802.11ac and 802.11n is used in the WLAN system with the OFDMA technology introduced, since the AP will schedule multiple STAs at the same time, multiple groups of RAs and TAs will appear in the MAC header, resulting in the MAC header. Address overhead increases, affecting system performance.

发明内容Summary of the invention

本发明实施例提供一种媒介访问控制包头压缩方法、装置及***，以减少MAC包头的地址开销，提高***效率。Embodiments of the present invention provide a medium access control packet header compression method, device, and system, Reduce the address overhead of the MAC header and improve system efficiency.

第一方面，本发明实施例提供一种MAC包头压缩方法，包括：In a first aspect, an embodiment of the present invention provides a MAC header compression method, including:

生成媒质接入控制MAC包头，所述MAC包头的格式为压缩MAC包头占用的字节数后的MAC包头格式；Generating a medium access control MAC header, where the format of the MAC header is a MAC header format after compressing the number of bytes occupied by the MAC header;

将所述MAC包头和MAC帧体封装在物理层协议数据单元PPDU中；Encapsulating the MAC header and the MAC frame body in a physical layer protocol data unit PPDU;

将所述PPDU发送给至少一个站点STA。Sending the PPDU to at least one station STA.

结合第一方面，在第一方面的第一种可能的实现方式中，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第一标识信息时，所述MAC包头中的地址部分不包括接收地址RA。With reference to the first aspect, in a first possible implementation manner of the first aspect, the format of the MAC header of the PPDU includes: when the signaling part of the PPDU includes the first identifier information of the scheduled STA, the MAC The address portion in the header does not include the receiving address RA.

结合第一方面，在第一方面的第二种可能的实现方式中，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第一标识信息时，所述MAC包头中的地址部分不包括发送地址TA。With reference to the first aspect, in a second possible implementation manner of the first aspect, the format of the MAC header of the PPDU includes: when the signaling part of the PPDU includes the first identifier information of the scheduled STA, the MAC The address portion in the header does not include the sending address TA.

结合第一方面，在第一方面的第三种可能的实现方式中，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第二标识信息时，所述MAC包头中的地址部分不包括TA。With reference to the first aspect, in a third possible implementation manner of the first aspect, the format of the MAC header of the PPDU includes: when the signaling part of the PPDU includes the second identifier information of the scheduled STA, the MAC The address part of the header does not include the TA.

结合第一方面，在第一方面的第四种可能的实现方式中，所述生成MAC包头，包括：With reference to the first aspect, in a fourth possible implementation manner of the first aspect, the generating a MAC packet header includes:

所述MAC帧体包含多个子帧时，生成用于指示多个子帧的MAC包头，其中，所述每个子帧包含一个MAC包头。When the MAC frame body includes multiple subframes, a MAC header for indicating a plurality of subframes is generated, where each subframe includes one MAC header.

结合第一方面的第四种可能的实现方式，在第一方面的第五种可能的实现方式中，所述PPDU的MAC包头的格式包括：With reference to the fourth possible implementation of the first aspect, in a fifth possible implementation manner of the first aspect, the format of the MAC header of the PPDU includes:

所有所述子帧的MAC包头中的地址部分不包括RA；或者，The address portion in the MAC header of all the subframes does not include RA; or,

所有所述子帧的MAC包头中的地址部分不包括TA；或者，The address portion in the MAC header of all the subframes does not include the TA; or,

第一个所述子帧的MAC包头中的地址部分不包括RA，其他子帧的MAC包头中的地址部分不包括TA和RA；或者，The address part in the MAC header of the first subframe does not include the RA, and the address part in the MAC header of the other subframe does not include the TA and the RA; or

第一个所述子帧的MAC包头中的地址部分不包括TA，其他子帧的MAC包头中的地址部分不包括TA和RA。The address portion in the MAC header of the first subframe does not include the TA, and the address portion in the MAC header of the other subframe does not include the TA and the RA.

结合第一方面的第一种或第二种可能的实现方式，在第一方面的第六种可能的实现方式中，所述第一标识信息包括关联标识AID或组标识GID。In conjunction with the first or second possible implementation of the first aspect, in a sixth possible implementation manner of the first aspect, the first identifier information includes an association identifier AID or a group identifier GID.

结合第一方面的第三种可能的实现方式，在第一方面的第七种可能的实现方式中，所述第二标识信息包括部分关联标识PAID。In conjunction with the third possible implementation of the first aspect, the seventh possible aspect in the first aspect In an implementation manner, the second identifier information includes a partial association identifier PAID.

第二方面，本发明实施例提供一种MAC包头压缩方法，包括：In a second aspect, an embodiment of the present invention provides a MAC header compression method, including:

接收物理层协议数据单元PPDU，所述PPDU包括信令部分和媒质接入控制MAC包头；Receiving a physical layer protocol data unit PPDU, where the PPDU includes a signaling part and a medium access control MAC header;

根据所述信令部分、所述MAC包头中的地址部分以及本地MAC地址确定是否解调所述PPDU。Whether to demodulate the PPDU is determined according to the signaling portion, the address portion in the MAC header, and the local MAC address.

结合第二方面，在第二方面的第一种可能的实现方式中，所述根据所述信令部分、所述MAC包头中的地址部分以及本地MAC地址确定是否解调所述PPDU，包括：With reference to the second aspect, in a first possible implementation manner of the second aspect, the determining, according to the signaling part, the address part in the MAC packet header, and the local MAC address, whether to demodulate the PPDU, includes:

根据所述信令部分中的被调度的STA的标识信息和所述MAC包头中的地址部分确定所述PPDU的接收地址RA；Determining a receiving address RA of the PPDU according to the identifier information of the scheduled STA in the signaling part and the address part in the MAC header;

根据所述PPDU的RA和本地MAC地址确定是否解调所述PPDU。Determining whether to demodulate the PPDU according to the RA and the local MAC address of the PPDU.

结合第二方面或第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现方式中，所述信令部分包括被调度的STA的第一标识信息，所述MAC包头中的地址部分不包括RA。With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the signaling part includes first identifier information of the scheduled STA, the MAC The address portion of the header does not include RA.

结合第二方面或第二方面的第一种可能的实现方式，在第二方面的第三种可能的实现方式中，所述信令部分包括被调度的STA的第一标识信息，所述MAC包头中的地址部分不包括发送地址TA。With reference to the second aspect, or the first possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the signaling part includes first identifier information of the scheduled STA, the MAC The address portion in the header does not include the sending address TA.

结合第二方面或第二方面的第一种可能的实现方式，在第二方面的第四种可能的实现方式中，所述信令部分包括被调度的STA的第二标识信息，所述MAC包头中的地址部分不包括TA。With reference to the second aspect, or the first possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the signaling part includes second identifier information of the scheduled STA, the MAC The address part of the header does not include the TA.

结合第二方面或第二方面的第一种可能的实现方式，在第二方面的第五种可能的实现方式中，所述PPDU包括至少一个子帧的MAC包头；With reference to the second aspect, or the first possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, the PPDU includes a MAC packet header of at least one subframe;

所述子帧的MAC包头中的地址部分不包括TA；或者，The address part in the MAC header of the subframe does not include the TA; or,

所述子帧的MAC包头中的地址部分不包括RA；或者，The address part in the MAC header of the subframe does not include RA; or,

结合第二方面的第二种或第三种可能的实现方式，在第二方面的第六种可能的实现方式中，所述第一标识信息包括关联标识AID或组标识GID。Combining the second or third possible implementation of the second aspect, the sixth in the second aspect In a possible implementation manner, the first identifier information includes an association identifier AID or a group identifier GID.

结合第二方面的第四种可能的实现方式，在第二方面的第七种可能的实现方式中，所述第二标识信息包括部分关联标识PAID。With reference to the fourth possible implementation of the second aspect, in a seventh possible implementation manner of the second aspect, the second identifier information includes a partial association identifier (PAID).

第三方面，本发明实施例提供一种AP，包括：In a third aspect, an embodiment of the present invention provides an AP, including:

包头生成模块，用于生成媒质接入控制MAC包头，所述MAC包头的格式为压缩MAC包头占用的字节数后的MAC包头格式；a packet header generating module, configured to generate a media access control MAC packet header, where the format of the MAC packet header is a MAC header format after compressing the number of bytes occupied by the MAC packet header;

封装模块，用于将所述MAC包头和MAC帧体封装在物理层协议数据单元PPDU中；An encapsulating module, configured to encapsulate the MAC header and the MAC frame body in a physical layer protocol data unit PPDU;

发送模块，用于将所述PPDU发送给至少一个站点STA。And a sending module, configured to send the PPDU to at least one station STA.

结合第三方面，在第三方面的第一种可能的实现方式中，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第一标识信息时，所述MAC包头中的地址部分不包括接收地址RA。With reference to the third aspect, in a first possible implementation manner of the third aspect, the format of the MAC header of the PPDU includes: when the signaling part of the PPDU includes the first identifier information of the scheduled STA, the MAC The address portion in the header does not include the receiving address RA.

结合第三方面，在第三方面的第二种可能的实现方式中，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第一标识信息时，所述MAC包头中的地址部分不包括发送地址TA。With reference to the third aspect, in a second possible implementation manner of the third aspect, the format of the MAC header of the PPDU includes: when the signaling part of the PPDU includes the first identifier information of the scheduled STA, the MAC The address portion in the header does not include the sending address TA.

结合第三方面，在第三方面的第三种可能的实现方式中，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第二标识信息时，所述MAC包头中的地址部分不包括TA。With reference to the third aspect, in a third possible implementation manner of the third aspect, the format of the MAC header of the PPDU includes: when the signaling part of the PPDU includes the second identifier information of the scheduled STA, the MAC The address part of the header does not include the TA.

结合第三方面，在第三方面的第四种可能的实现方式中，所述包头生成模块，具体用于所述MAC帧体包含多个子帧时，生成用于指示多个子帧的MAC包头，其中，所述每个子帧包含一个MAC包头。With reference to the third aspect, in a fourth possible implementation manner of the third aspect, the packet header generating module is configured to: when the MAC frame body includes multiple subframes, generate a MAC header for indicating multiple subframes, Wherein each of the subframes includes a MAC header.

结合第三方面的第四种可能的实现方式，在第三方面的第五种可能的实现方式中，所述PPDU的MAC包头的格式包括：With the fourth possible implementation of the third aspect, in a fifth possible implementation manner of the third aspect, the format of the MAC header of the PPDU includes:

结合第三方面的第一种或第二种可能的实现方式，在第三方面的第六种可能的实现方式中，所述第一标识信息包括关联标识AID或组标识GID。Combining the first or second possible implementation of the third aspect, the sixth in the third aspect In a possible implementation manner, the first identifier information includes an association identifier AID or a group identifier GID.

结合第三方面的第三种可能的实现方式，在第三方面的第七种可能的实现方式中，所述第二标识信息包括部分关联标识PAID。In conjunction with the third possible implementation of the third aspect, in a seventh possible implementation manner of the third aspect, the second identifier information includes a partial association identifier (PAID).

第四方面，本发明实施例提供一种STA，包括：In a fourth aspect, an embodiment of the present invention provides a STA, including:

接收模块，用于接收物理层协议数据单元PPDU，所述PPDU包括信令部分和媒质接入控制MAC包头；a receiving module, configured to receive a physical layer protocol data unit PPDU, where the PPDU includes a signaling part and a medium access control MAC header;

确定模块，用于根据所述信令部分、所述MAC包头中的地址部分以及本地MAC地址确定是否解调所述PPDU。And a determining module, configured to determine whether to demodulate the PPDU according to the signaling part, an address part in the MAC header, and a local MAC address.

结合第四方面，在第四方面的第一种可能的实现方式中，所述确定模块，具体用于根据所述信令部分中的被调度的STA的标识信息和所述MAC包头中的地址部分确定所述PPDU的接收地址RA；根据所述PPDU的RA和本地MAC地址确定是否解调所述PPDU。With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the determining module is specifically configured to: according to the identifier information of the scheduled STA in the signaling part, and an address in the MAC header Partially determining a receiving address RA of the PPDU; determining whether to demodulate the PPDU according to an RA and a local MAC address of the PPDU.

结合第四方面或第四方面的第一种可能的实现方式，在第四方面的第二种可能的实现方式中，所述信令部分包括被调度的STA的第一标识信息，所述MAC包头中的地址部分不包括RA。With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the signaling part includes first identifier information of the scheduled STA, the MAC The address portion of the header does not include RA.

结合第四方面或第四方面的第一种可能的实现方式，在第四方面的第三种可能的实现方式中，所述信令部分包括被调度的STA的第一标识信息，所述MAC包头中的地址部分不包括发送地址TA。With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the signaling part includes first identifier information of the scheduled STA, the MAC The address portion in the header does not include the sending address TA.

结合第四方面或第四方面的第一种可能的实现方式，在第四方面的第四种可能的实现方式中，所述信令部分包括被调度的STA的第二标识信息，所述MAC包头中的地址部分不包括TA。With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the signaling part includes second identifier information of the scheduled STA, the MAC The address part of the header does not include the TA.

结合第四方面或第四方面的第一种可能的实现方式，在第四方面的第五种可能的实现方式中，所述PPDU包括至少一个子帧的MAC包头；With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the PPDU includes a MAC packet header of at least one subframe;

结合第四方面的第二种或第三种可能的实现方式，在第四方面的第六种可能的实现方式中，所述第一标识信息包括关联标识AID或组标识GID。Combining the second or third possible implementation of the fourth aspect, the sixth in the fourth aspect In a possible implementation manner, the first identifier information includes an association identifier AID or a group identifier GID.

结合第四方面的第四种可能的实现方式，在第四方面的第七种可能的实现方式中，所述第二标识信息包括部分关联标识PAID。In conjunction with the fourth possible implementation of the fourth aspect, in a seventh possible implementation manner of the fourth aspect, the second identifier information includes a partial association identifier (PAID).

第五方面，本发明实施例提供一种AP，包括：In a fifth aspect, an embodiment of the present invention provides an AP, including:

处理器，用于生成媒质接入控制MAC包头，所述MAC包头的格式为压缩MAC包头占用的字节数后的MAC包头格式；将所述MAC包头和MAC帧体封装在物理层协议数据单元PPDU中；a processor, configured to generate a medium access control MAC header, where the format of the MAC header is a MAC header format after compressing the number of bytes occupied by the MAC header; and the MAC header and the MAC frame are encapsulated in a physical layer protocol data unit. PPDU;

发送器，用于将所述PPDU发送给至少一个站点STA。And a transmitter, configured to send the PPDU to at least one station STA.

结合第五方面，在第五方面的第一种可能的实现方式中，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第一标识信息时，所述MAC包头中的地址部分不包括接收地址RA。With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the format of the MAC header of the PPDU includes: when the signaling part of the PPDU includes the first identifier information of the scheduled STA, the MAC The address portion in the header does not include the receiving address RA.

结合第五方面，在第五方面的第二种可能的实现方式中，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第一标识信息时，所述MAC包头中的地址部分不包括发送地址TA。With reference to the fifth aspect, in a second possible implementation manner of the fifth aspect, the format of the MAC header of the PPDU includes: when the signaling part of the PPDU includes the first identifier information of the scheduled STA, the MAC The address portion in the header does not include the sending address TA.

结合第五方面，在第五方面的第三种可能的实现方式中，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第二标识信息时，所述MAC包头中的地址部分不包括TA。With reference to the fifth aspect, in a third possible implementation manner of the fifth aspect, the format of the MAC header of the PPDU includes: when the signaling part of the PPDU includes the second identifier information of the scheduled STA, the MAC The address part of the header does not include the TA.

结合第五方面，在第五方面的第四种可能的实现方式中，所述处理器，具体用于所述MAC帧体包含多个子帧时，生成用于指示多个子帧的MAC包头，其中，所述每个子帧包含一个MAC包头。With reference to the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the processor is configured to: when the MAC frame body includes multiple subframes, generate a MAC header for indicating multiple subframes, where Each of the subframes includes a MAC header.

结合第五方面的第四种可能的实现方式，在第五方面的第五种可能的实现方式中，所述PPDU的MAC包头的格式包括：With reference to the fourth possible implementation manner of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the format of the MAC header of the PPDU includes:

结合第五方面的第一种或第二种可能的实现方式，在第五方面的第六种可能的实现方式中，所述第一标识信息包括关联标识AID或组标识GID。 In conjunction with the first or second possible implementation of the fifth aspect, in a sixth possible implementation manner of the fifth aspect, the first identifier information includes an association identifier AID or a group identifier GID.

结合第五方面的第三种可能的实现方式，在第五方面的第七种可能的实现方式中，所述第二标识信息包括部分关联标识PAID。With reference to the third possible implementation manner of the fifth aspect, in a seventh possible implementation manner of the fifth aspect, the second identifier information includes a partial association identifier (PAID).

第六方面，本发明实施例提供一种STA，包括：In a sixth aspect, an embodiment of the present invention provides an STA, including:

接收器，用于接收物理层协议数据单元PPDU，所述PPDU包括信令部分和媒质接入控制MAC包头；a receiver, configured to receive a physical layer protocol data unit PPDU, where the PPDU includes a signaling part and a medium access control MAC header;

处理器，用于根据所述信令部分、所述MAC包头中的地址部分以及本地MAC地址确定是否解调所述PPDU。And a processor, configured to determine whether to demodulate the PPDU according to the signaling part, an address part in the MAC header, and a local MAC address.

结合第六方面，在第六方面的第一种可能的实现方式中，所述处理器，具体用于根据所述信令部分中的被调度的STA的标识信息和所述MAC包头中的地址部分确定所述PPDU的接收地址RA；根据所述PPDU的RA和本地MAC地址确定是否解调所述PPDU。With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the processor is specifically configured to: according to the identifier information of the scheduled STA in the signaling part, and an address in the MAC header Partially determining a receiving address RA of the PPDU; determining whether to demodulate the PPDU according to an RA and a local MAC address of the PPDU.

结合第六方面或第六方面的第一种可能的实现方式，在第六方面的第二种可能的实现方式中，所述信令部分包括被调度的STA的第一标识信息，所述MAC包头中的地址部分不包括RA。With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the signaling part includes first identifier information of the scheduled STA, the MAC The address portion of the header does not include RA.

结合第六方面或第六方面的第一种可能的实现方式，在第六方面的第三种可能的实现方式中，所述信令部分包括被调度的STA的第一标识信息，所述MAC包头中的地址部分不包括发送地址TA。With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a third possible implementation manner of the sixth aspect, the signaling part includes first identifier information of the scheduled STA, the MAC The address portion in the header does not include the sending address TA.

结合第六方面或第六方面的第一种可能的实现方式，在第六方面的第四种可能的实现方式中，所述信令部分包括被调度的STA的第二标识信息，所述MAC包头中的地址部分不包括TA。With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a fourth possible implementation manner of the sixth aspect, the signaling part includes second identifier information of the scheduled STA, the MAC The address part of the header does not include the TA.

结合第六方面或第六方面的第一种可能的实现方式，在第六方面的第五种可能的实现方式中，所述PPDU包括至少一个子帧的MAC包头；With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a fifth possible implementation manner of the sixth aspect, the PPDU includes a MAC packet header of at least one subframe;

结合第六方面的第二种或第三种可能的实现方式，在第六方面的第六种可能的实现方式中，所述第一标识信息包括关联标识AID或组标识GID。 With reference to the second or third possible implementation manner of the sixth aspect, in the sixth possible implementation manner of the sixth aspect, the first identifier information includes an association identifier AID or a group identifier GID.

结合第六方面的第四种可能的实现方式，在第六方面的第七种可能的实现方式中，所述第二标识信息包括部分关联标识PAID。With reference to the fourth possible implementation manner of the sixth aspect, in a seventh possible implementation manner of the sixth aspect, the second identifier information includes a partial association identifier (PAID).

第七方面，本发明实施例提供一种通信***，包括：接入点AP和至少一个站点STA，其中，所述AP为第三方面、第三方面的第一种至第七种中任一种可能的实现方式所述的AP，所述STA为第四方面、第四方面的第一种至第七种中任一种可能的实现方式所述的STA。According to a seventh aspect, an embodiment of the present invention provides a communication system, including: an access point AP and at least one station STA, where the AP is the third aspect, and the first to seventh aspects of the third aspect According to a possible implementation manner, the STA is the STA according to any one of the first to seventh possible implementation manners of the fourth aspect.

第八方面，本发明实施例提供一种通信***，包括：接入点AP和至少一个站点STA，其中，所述AP为第五方面、第五方面的第一种至第七种中任一种可能的实现方式所述的AP，所述STA为第六方面、第六方面的第一种至第七种中任一种可能的实现方式所述的STA。According to an eighth aspect, an embodiment of the present invention provides a communication system, including: an access point AP and at least one station STA, where the AP is the fifth aspect, the first to the seventh of the fifth aspect, According to a possible implementation manner, the STA is the STA according to any one of the first to seventh possible implementation manners of the sixth aspect.

本发明实施例媒介访问控制包头压缩方法、装置及***，通过生成MAC包头，对MAC包头占用的字节数进行压缩，减少了MAC包头的地址开销，提高***效率。The medium access control packet header compression method, device and system according to the embodiment of the invention compresses the number of bytes occupied by the MAC packet header by generating a MAC packet header, reduces the address overhead of the MAC packet header, and improves system efficiency.

附图说明DRAWINGS

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一简单地介绍，显而易见地，下面描述中的附图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。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

图1为IEEE802.11ac和802.11n中规定的MAC包头的内容；Figure 1 shows the contents of the MAC header specified in IEEE802.11ac and 802.11n;

图2为本发明MAC包头压缩方法的一个应用场景示意图；2 is a schematic diagram of an application scenario of a MAC header compression method according to the present invention;

图3为本发明MAC包头压缩方法的一个实施例的流程图；3 is a flowchart of an embodiment of a MAC header compression method according to the present invention;

图4是PPDU的一个帧结构示意图；4 is a schematic diagram of a frame structure of a PPDU;

图5是PPDU的另一个帧结构示意图；5 is a schematic diagram of another frame structure of a PPDU;

图6是PPDU的再一个帧结构示意图；6 is a schematic diagram of another frame structure of a PPDU;

图7是PPDU的第四个帧结构示意图；7 is a schematic diagram of a fourth frame structure of a PPDU;

图8为本发明MAC包头压缩方法的另一个实施例的流程图；FIG. 8 is a flowchart of another embodiment of a MAC header compression method according to the present invention; FIG.

图9为本发明AP的一个实施例的结构示意图；9 is a schematic structural diagram of an embodiment of an AP according to the present invention;

图10为本发明STA的一个实施例的结构示意图；FIG. 10 is a schematic structural diagram of an embodiment of a STA according to the present invention; FIG.

图11为本发明AP的另一个实施例的结构示意图； 11 is a schematic structural view of another embodiment of an AP according to the present invention;

图12为本发明STA的另一个实施例的结构示意图；12 is a schematic structural diagram of another embodiment of a STA according to the present invention;

图13为本发明通信***的一个实施例的结构示意图。FIG. 13 is a schematic structural diagram of an embodiment of a communication system according to the present invention.

具体实施方式detailed description

为使本发明实施例的目的、技术方案和优点更加清楚，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作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。The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

图2为本发明MAC包头压缩方法的一个应用场景示意图，如图2所示，本实施例的应用场景为引入了OFDMA技术的WLAN***，该WLAN***中包括一个AP 10和四个STA 20(即STA1、STA2、STA3、STA4)。AP 10可以将通过本发明中的MAC包头压缩方法生成的MAC包头和MAC帧体封装在下行物理层协议数据单元(Physical Layer Protocol Data Unit，简称：PPDU)中，并将PPDU发送给至少一个STA 20。FIG. 2 is a schematic diagram of an application scenario of a MAC header compression method according to the present invention. As shown in FIG. 2, the application scenario of the present embodiment is a WLAN system that introduces an OFDMA technology, where the WLAN system includes one AP 10 and four STAs 20 ( That is, STA1, STA2, STA3, and STA4). The AP 10 may encapsulate the MAC header and the MAC frame generated by the MAC header compression method in the present invention in a Physical Layer Protocol Data Unit (PPDU), and send the PPDU to at least one STA. 20.

图3为本发明MAC包头压缩方法的一个实施例的流程图，如图3所示，本实施例的方法可以包括：FIG. 3 is a flowchart of an embodiment of a MAC header compression method according to the present invention. As shown in FIG. 3, the method in this embodiment may include:

步骤101、生成MAC包头，所述MAC包头的格式为压缩MAC包头占用的字节数后的MAC包头格式；Step 101: Generate a MAC header, where the format of the MAC header is a MAC header format after compressing the number of bytes occupied by the MAC header;

下一代WLAN***的协议IEEE802.11ax中，AP可以在发送给STA的下行PPDU中包括物理会聚协议(Physical Layer Convergence Procedure，简称：PLCP)头域和数据域，PLCP头域包括前导和控制域，其中控制域包括高效信令(high efficiency signal，简称：HE-SIG)HE-SIGA和HE-SIGB，在HE-SIGB中包括AP对多个被调度的STA的上行和/或下行时频资源指示信息。STA可以通过接收并解码PPDU中的HE-SIGB信息，获知自身进行上行和/或下行传输所使用的时频资源指示信息。In the IEEE 802.11ax protocol of the next-generation WLAN system, the AP may include a Physical Layer Convergence Procedure (PLCP) header field and a data field in the downlink PPDU sent to the STA, and the PLCP header field includes a preamble and a control domain. The control domain includes high efficiency signaling (HE-SIG) HE-SIGA and HE-SIGB, and the uplink and/or downlink time-frequency resource indication of the AP to multiple scheduled STAs is included in the HE-SIGB. information. The STA can obtain the time-frequency resource indication information used by the UE for uplink and/or downlink transmission by receiving and decoding the HE-SIGB information in the PPDU.

本实施例AP基于上述PPDU中的HE-SIGB指示的被调度的STA的标识信息，可以对MAC包头中的地址部分进行压缩，在MAC包头中仅传输TA或RA，有效降低MAC包头的地址开销。STA在接收到PPDU后，可以结合PPDU中的HE-SIGB指示的被调度的STA的标识信息和 MAC包头中的地址部分确定出该PPDU的RA。In this embodiment, the AP can compress the address part in the MAC header according to the identifier information of the scheduled STA indicated by the HE-SIGB in the PPDU, and only transmit the TA or RA in the MAC header, thereby effectively reducing the address overhead of the MAC header. . After receiving the PPDU, the STA may combine the identification information of the scheduled STA indicated by the HE-SIGB in the PPDU and The address portion of the MAC header determines the RA of the PPDU.

MAC包头的格式即为压缩MAC包头占用的字节数后的MAC包头格式，其可以是预先存储在AP中的格式。从图1可知，现有的MAC包头格式中由于包括了TA和RA，一共需要12个字节，如果对其中之一进行压缩，那么压缩后的MAC包头中的地址部分即可少占用6个字节，大大减少了MAC包头的地址开销。The format of the MAC header is the MAC header format after compressing the number of bytes occupied by the MAC header, which may be a format pre-stored in the AP. As can be seen from FIG. 1, the existing MAC header format includes a total of 12 bytes because TA and RA are included. If one of them is compressed, the address portion of the compressed MAC header can occupy 6 less. Bytes greatly reduce the address overhead of the MAC header.

步骤102、将所述MAC包头和MAC帧体封装在PPDU中；Step 102: Encapsulate the MAC header and the MAC frame body in a PPDU.

步骤103、将所述PPDU发送给至少一个站点STA。Step 103: Send the PPDU to at least one station STA.

AP将封装了MAC包头和MAC帧体的PPDU发送出去，该PPDU可以被至少一个STA接收到。The AP sends the PPDU encapsulating the MAC header and the MAC frame body, and the PPDU can be received by at least one STA.

本实施例，通过生成MAC包头，对MAC包头占用的字节数进行压缩，减少了MAC包头的地址开销，提高***效率。In this embodiment, by generating a MAC header, the number of bytes occupied by the MAC header is compressed, which reduces the address overhead of the MAC header and improves system efficiency.

下面采用几个具体的实施例，对图3所示方法实施例的技术方案进行详细说明。The technical solutions of the method embodiment shown in FIG. 3 are described in detail below by using several specific embodiments.

图4是PPDU的一个帧结构示意图，如图4所示，本实施例是下行PPDU的帧格式，在PPDU的信令部分HE-SIGB中可以包括被调度的STA的关联标识(associated identity，简称：AID)或组标识(group identity，简称：GID)，图4中被调度的STA包括STA1、STA2、STA3，HE-SIGB中包括这些被调度的STA的AID，且指示每个被调度的STA在某个频段的时频资源上接收下行数据(图中通过方框内的花纹表示不同的频段)，MAC包头中的地址部分不包括RA(地址1)，只包括TA(地址2)。FIG. 4 is a schematic diagram of a frame structure of a PPDU. As shown in FIG. 4, this embodiment is a frame format of a downlink PPDU, and the signaling part of the PPDU may include an associated identity of the STA to be scheduled. :AID) or group identity (GID), the scheduled STAs in FIG. 4 include STA1, STA2, and STA3, and the AIDs of these scheduled STAs are included in the HE-SIGB, and each scheduled STA is indicated. The downlink data is received on the time-frequency resources of a certain frequency band (the patterns in the block indicate different frequency bands in the figure), and the address part in the MAC header does not include RA (address 1), and only includes TA (address 2).

AID在一个基本服务集(Basic Service Set，简称：BSS)内是STA的唯一标识信息，多个STA在接收到PPDU后，可以先根据HE-SIGB中被调度的STA的AID确定自身是否属于其中；一个BSS中只包括一个AP，因此BSS的标识(BSSID)可以作为其包括的AP的地址标识，即在AP发送的PPDU中的TA可以用BSSID表示(TA＝BSSID)，STA可以在认为自身被调度后，再根据MAC包头中的地址部分的TA确定是哪个BSS中的AP发出该PPDU，结合自身所属的BSSID就可以唯一确定出AP指定的实际接收STA是否为自己，进而确定是否需要对该PPDU进行解调。The AID is a unique identification information of the STA in a Basic Service Set (BSS). After receiving the PPDU, multiple STAs may first determine whether they belong to the STA according to the STA of the STA in the HE-SIGB. A BSS includes only one AP, so the BSS identifier (BSSID) can be used as the address identifier of the AP it includes. That is, the TA in the PPDU sent by the AP can be represented by the BSSID (TA=BSSID), and the STA can consider itself. After being scheduled, it is determined according to the TA of the address part in the MAC packet header, which AP in the BSS sends the PPDU, and the BSSID to which it belongs can be used to uniquely determine whether the actual receiving STA specified by the AP is itself, and then determine whether it is necessary. The PPDU is demodulated.

图5是PPDU的另一个帧结构示意图，如图5所示，本实施例是下行 PPDU的帧格式，在PPDU的信令部分HE-SIGB中可以包括被调度的STA的AID或GID，图5中被调度的STA包括STA1、STA2、STA3，HE-SIGB中包括这些被调度的STA的AID，且指示每个被调度的STA在某个频段的时频资源上接收下行数据(图中通过方框内的花纹表示不同的频段)，MAC包头中的地址部分不包括TA(地址2)，只包括RA(地址1)，在分配给各被调度的STA的频段中对应指示出接收的STA。FIG. 5 is a schematic diagram of another frame structure of a PPDU. As shown in FIG. 5, this embodiment is a downlink. The frame format of the PPDU may include the AID or GID of the scheduled STA in the signaling part HE-SIGB of the PPDU. The scheduled STAs in FIG. 5 include STA1, STA2, and STA3, and the scheduled STAs are included in the HE-SIGB. AID, and indicating that each scheduled STA receives downlink data on a time-frequency resource of a certain frequency band (the pattern in the box indicates a different frequency band), and the address part in the MAC header does not include the TA (address 2) ), only RA (address 1) is included, and the received STA is indicated in the frequency band allocated to each scheduled STA.

AID在一个BSS内是STA的唯一标识信息，多个STA在接收到PPDU后，可以先根据HE-SIGB中被调度的STA的AID确定自身是否属于其中；STA可以在认为自身被调度后，再根据MAC包头中的地址部分的RA结合自身的MAC地址唯一确定出AP指定的实际接收STA是否为自己，进而确定是否需要对该PPDU进行解调。The AID is the unique identification information of the STA in a BSS. After receiving the PPDU, the multiple STAs may first determine whether they belong to the STA according to the scheduled AID of the STA in the HE-SIGB; the STA may consider that it is scheduled, and then The RA according to the address part of the MAC packet header is uniquely determined by the MAC address of the MAC header to determine whether the actual receiving STA specified by the AP is itself, and further determines whether the PPDU needs to be demodulated.

图6是PPDU的再一个帧结构示意图，如图6所示，本实施例是下行PPDU的部分帧格式，在PPDU的信令部分HE-SIGB中可以包括被调度的STA的部分关联标识(Paritial Associated identity，简称：PAID)，图6中被调度的STA包括STA1、STA2、STA3，HE-SIGB中包括这些被调度的STA的PAID，且指示每个被调度的STA在某个频段的时频资源上接收下行数据(图中通过方框内的花纹表示不同的频段)，MAC包头中的地址部分不包括TA(地址2)，只包括RA(地址1)，在分配给各被调度的STA的频段中对应指示出接收的STA。FIG. 6 is a schematic diagram of another frame structure of a PPDU. As shown in FIG. 6, this embodiment is a partial frame format of a downlink PPDU, and the signaling part HE-SIGB of the PPDU may include a partial association identifier of the scheduled STA (Paritial). Associated identity (abbreviated as: PAID), the scheduled STAs in FIG. 6 include STA1, STA2, and STA3, and the HE-SIGB includes the PAIDs of the scheduled STAs, and indicates the time-frequency of each scheduled STA in a certain frequency band. The downlink data is received on the resource (the pattern in the box indicates different frequency bands), the address part in the MAC header does not include TA (address 2), and only RA (address 1) is included, which is allocated to each scheduled STA. The corresponding frequency band indicates the STA that is receiving.

PAID在一个BSS内是STA的标识信息，由于PAID并不唯一，因此可能有多个STA(甚至同一个BSS中也有两个以上STA)在接收到PPDU后，根据HE-SIGB中被调度的STA的PAID确定自身是属于其中的；此时STA可以在认为自身被调度后，再根据MAC包头中的地址部分的RA结合自身的MAC地址唯一确定出AP指定的实际接收STA是否为自己，进而确定是否需要对该PPDU进行解调。The PAID is the identification information of the STA in a BSS. Since the PAID is not unique, there may be multiple STAs (or even more than two STAs in the same BSS). After receiving the PPDU, according to the STAs scheduled in the HE-SIGB. The PAID determines that it belongs to it; at this time, the STA can determine whether the actual receiving STA specified by the AP is self-determined according to the RA of the address part in the MAC header and the MAC address of the MAC header in the MAC header. Whether the PPDU needs to be demodulated.

上述图4～图6所示实施例中，多个STA在收到PPDU之后可以先根据HE-SIGA中的基本服务集颜色(BSS color)进行一次初筛，若某个STA判断HE-SIGA中的BSS color不是自己的，表示该PPDU不属于自身所属的BSS，则该STA直接丢弃该PPDU，不再对其进行解调。In the foregoing embodiment shown in FIG. 4 to FIG. 6, after receiving the PPDU, the plurality of STAs may first perform primary screening according to the basic service set color (BSS color) in the HE-SIGA, if a certain STA determines the HE-SIGA. The BSS color is not its own, indicating that the PPDU does not belong to the BSS to which it belongs, and the STA directly discards the PPDU and does not demodulate it.

图7是PPDU的第四个帧结构示意图，如图7所示，当MAC帧体包含多个子帧时，AP相应的生成用于指示多个子帧的MAC包头，每个子帧包含一个MAC包头，AP将多个子帧对应的MAC包头和MAC帧体封装在下行聚合媒体访问控制协议数据单元(Aggregated Mac Protocol Data Unit，简称：AMPDU)中，该AMPDU中对应每个子帧的MAC包头中的地址部分可以不包括TA，只包括RA；或者，可以不包括RA，只包括TA；或者，可以在第一个子帧的MAC包头中的地址部分不包括RA，只包括TA，而其他子帧的MAC包头中的地址部分则TA和RA都不包括；或者，可以在第一个子帧的MAC包头中的地址部分不包括TA，只包括RA，而其他子帧的MAC包头中的地址部分则TA和RA都不包括。图7中是以AMPDU的所有子帧的MAC包头中的地址部分不包括TA为示例。7 is a schematic diagram of a fourth frame structure of a PPDU, as shown in FIG. When a plurality of subframes are included, the AP generates a MAC header for indicating a plurality of subframes, and each subframe includes a MAC header. The AP encapsulates the MAC header and the MAC frame corresponding to the multiple subframes in the downlink aggregation medium access control protocol data. In the Aggregated Mac Protocol Data Unit (AMPDU), the address part of the MAC header corresponding to each subframe in the AMPDU may not include the TA, and only includes the RA; or may include the RA, and only includes the TA; or The address part in the MAC header of the first subframe may not include the RA, and only the TA is included, and the address part in the MAC header of the other subframes is not included in the TA and the RA; or, the first subframe may be included. The address part of the MAC header does not include the TA, but only the RA, and the address part of the MAC header of other subframes is not included in the TA and RA. In FIG. 7, the address portion in the MAC header of all subframes of the AMPDU does not include the TA as an example.

进一步的，AP也可以指定一种MAC包头的格式，在不同子帧的MAC包头中的地址部分可以压缩掉不同的地址信息，例如，奇数编号的子帧的MAC包头中的地址部分不包括RA，偶数编号的子帧的MAC包头中的地址部分不包括TA。Further, the AP may also specify a format of a MAC header, and the address part in the MAC header of different subframes may compress different address information. For example, the address part in the MAC header of the odd-numbered subframe does not include the RA. The address portion in the MAC header of the even-numbered subframe does not include the TA.

图8为本发明MAC包头压缩方法的另一个实施例的流程图，如图8所示，本实施例的方法可以包括：FIG. 8 is a flowchart of another embodiment of a method for compressing a MAC header according to the present invention. As shown in FIG. 8, the method in this embodiment may include:

步骤201、接收PPDU，所述PPDU包括信令部分和MAC包头；Step 201: Receive a PPDU, where the PPDU includes a signaling part and a MAC header;

本实施例与图2所示的方法实施例相对应，执行主体为STA。This embodiment corresponds to the method embodiment shown in FIG. 2, and the execution subject is STA.

步骤202、根据所述信令部分、所述MAC包头中的地址部分以及本地MAC地址确定是否解调所述PPDU。Step 202: Determine whether to demodulate the PPDU according to the signaling part, an address part in the MAC header, and a local MAC address.

STA可以通过上述方法实施例中描述的方法根据PPDU中的信令部分中被调度的STA的标识信息和MAC包头中的地址部分确定AP指定的PPDU的实际接收地址，再根据该实际接收地址和本地MAC地址确定是否解调该PPDU。The STA may determine, according to the identifier information of the scheduled STA in the signaling part in the PPDU and the address part in the MAC header, the actual receiving address of the PPDU specified by the AP according to the method described in the foregoing method embodiment, and then according to the actual receiving address and The local MAC address determines whether to demodulate the PPDU.

与上述实施例相对应的，STA接收的PPDU中的信令部分可以包括被调度的STA的第一标识信息，MAC包头中的地址部分可以不包括RA。或者，所述信令部分包括被调度的STA的第一标识信息，所述MAC包头中的地址部分不包括发送地址TA。或者，所述信令部分包括被调度的STA 的第二标识信息，所述MAC包头中的地址部分不包括TA。所述第一标识信息包括AID或GID，所述第二标识信息包括PAID。Corresponding to the foregoing embodiment, the signaling part in the PPDU received by the STA may include the first identification information of the scheduled STA, and the address part in the MAC header may not include the RA. Alternatively, the signaling part includes first identification information of the scheduled STA, and the address part in the MAC header does not include the sending address TA. Or the signaling part includes a scheduled STA The second identification information, the address portion in the MAC header does not include the TA. The first identification information includes an AID or a GID, and the second identification information includes a PAID.

而STA接收的AMPDU可以包括至少一个子帧的MAC包头；所述子帧的MAC包头中的地址部分不包括TA，或者，所述子帧的MAC包头中的地址部分不包括RA，或者，第一个所述子帧的MAC包头中的地址部分不包括RA，其他子帧的MAC包头中的地址部分不包括TA和RA，或者，第一个所述子帧的MAC包头中的地址部分不包括TA，其他子帧的MAC包头中的地址部分不包括TA和RA。The AMPDU received by the STA may include a MAC header of at least one subframe; the address portion in the MAC header of the subframe does not include the TA, or the address portion in the MAC header of the subframe does not include the RA, or, The address part in the MAC header of one of the subframes does not include the RA, the address part in the MAC header of the other subframe does not include the TA and the RA, or the address part in the MAC header of the first subframe does not Including the TA, the address portion in the MAC header of other subframes does not include TA and RA.

图9为本发明AP的一个实施例的结构示意图，如图9所示，本实施例的装置可以包括：包头生成模块11、封装模块12以及发送模块13，其中，包头生成模块11，用于生成媒质接入控制MAC包头，所述MAC包头的格式为压缩MAC包头占用的字节数后的MAC包头格式；封装模块12，用于将所述MAC包头和MAC帧体封装在物理层协议数据单元PPDU中；发送模块13，用于将所述PPDU发送给至少一个站点STA。FIG. 9 is a schematic structural diagram of an embodiment of an AP according to the present invention. As shown in FIG. 9, the apparatus in this embodiment may include: a packet header generating module 11, a packaging module 12, and a sending module 13, wherein the packet header generating module 11 is configured to Generating a medium access control MAC header, the format of the MAC header is a MAC header format after compressing the number of bytes occupied by the MAC header; the encapsulating module 12 is configured to encapsulate the MAC header and the MAC frame body in physical layer protocol data. In the unit PPDU, the sending module 13 is configured to send the PPDU to at least one station STA.

本实施例的装置，可以用于执行图3所示方法实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。The device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 3, and the implementation principle and technical effects are similar, and details are not described herein again.

进一步的，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第一标识信息时，所述MAC包头中的地址部分不包括接收地址RA。Further, the format of the MAC header of the PPDU includes: when the signaling part of the PPDU includes the first identification information of the scheduled STA, the address part in the MAC header does not include the receiving address RA.

进一步的，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第一标识信息时，所述MAC包头中的地址部分不包括发送地址TA。Further, the format of the MAC header of the PPDU includes: when the signaling part of the PPDU includes the first identification information of the scheduled STA, the address part in the MAC header does not include the sending address TA.

进一步的，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第二标识信息时，所述MAC包头中的地址部分不包括TA。Further, the format of the MAC header of the PPDU includes: when the signaling part of the PPDU includes the second identifier information of the scheduled STA, the address part in the MAC header does not include the TA.

进一步的，所述包头生成模块11，具体用于所述MAC帧体包含多个子帧时，生成用于指示多个子帧的MAC包头，其中，所述每个子帧包含一个MAC包头。Further, the packet header generating module 11 is configured to: when the MAC frame body includes multiple subframes, generate a MAC header for indicating a plurality of subframes, where each subframe includes one MAC header.

进一步的，所述PPDU的MAC包头的格式包括：所有所述子帧的MAC包头中的地址部分不包括RA；或者，所有所述子帧的MAC包头中的地址部分不包括TA；或者，第一个所述子帧的MAC包头中的地址部分不包括RA，其他子帧的MAC包头中的地址部分不包括TA和RA；或者，第一个所述子帧的MAC包头中的地址部分不包括TA，其他子帧的MAC包头中的地址部分不包括TA和RA。Further, the format of the MAC header of the PPDU includes: the address part in the MAC header of all the subframes does not include the RA; or the MAC header of all the subframes The address portion does not include the TA; or, the address portion of the MAC header of the first subframe does not include the RA, and the address portion of the MAC header of the other subframe does not include the TA and the RA; or, the first The address portion in the MAC header of the subframe does not include the TA, and the address portion in the MAC header of the other subframe does not include the TA and the RA.

进一步的，所述第一标识信息包括关联标识AID或组标识GID。Further, the first identifier information includes an association identifier AID or a group identifier GID.

进一步的，所述第二标识信息包括部分关联标识PAID。Further, the second identification information includes a partial association identifier PAID.

图10为本发明STA的一个实施例的结构示意图，如图10所示，本实施例的装置可以包括：接收模块21和确定模块22，其中，接收模块21，用于接收物理层协议数据单元PPDU，所述PPDU包括信令部分和媒质接入控制MAC包头；确定模块22，用于根据所述信令部分、所述MAC包头中的地址部分以及本地MAC地址确定是否解调所述PPDU。FIG. 10 is a schematic structural diagram of an embodiment of a STA according to the present invention. As shown in FIG. 10, the apparatus in this embodiment may include: a receiving module 21 and a determining module 22, where the receiving module 21 is configured to receive a physical layer protocol data unit. a PPDU, the PPDU includes a signaling part and a medium access control MAC header; and the determining module 22 is configured to determine whether to demodulate the PPDU according to the signaling part, an address part in the MAC header, and a local MAC address.

本实施例的装置，可以用于执行图8所示方法实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。The device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 8. The implementation principle and technical effects are similar, and details are not described herein again.

进一步的，所述确定模块22，具体用于根据所述信令部分中的被调度的STA的标识信息和所述MAC包头中的地址部分确定所述PPDU的接收地址RA；根据所述PPDU的RA和本地MAC地址确定是否解调所述PPDU。Further, the determining module 22 is specifically configured to determine, according to the identifier information of the scheduled STA in the signaling part and the address part in the MAC header, the receiving address RA of the PPDU, according to the PPDU. The RA and the local MAC address determine whether to demodulate the PPDU.

进一步的，所述信令部分包括被调度的STA的第一标识信息，所述MAC包头中的地址部分不包括RA。Further, the signaling part includes first identification information of the scheduled STA, and the address part in the MAC header does not include the RA.

进一步的，所述信令部分包括被调度的STA的第一标识信息，所述MAC包头中的地址部分不包括发送地址TA。Further, the signaling part includes first identification information of the scheduled STA, and the address part in the MAC header does not include the sending address TA.

进一步的，所述信令部分包括被调度的STA的第二标识信息，所述MAC包头中的地址部分不包括TA。Further, the signaling part includes second identification information of the scheduled STA, and the address part in the MAC header does not include the TA.

进一步的，所述PPDU包括至少一个子帧的MAC包头；所述子帧的MAC包头中的地址部分不包括TA；或者，所述子帧的MAC包头中的地址部分不包括RA；或者，第一个所述子帧的MAC包头中的地址部分不包括RA，其他子帧的MAC包头中的地址部分不包括TA和RA；或者，第一个所述子帧的MAC包头中的地址部分不包括TA，其他子帧的MAC包头中的地址部分不包括TA和RA。Further, the PPDU includes a MAC header of at least one subframe; an address portion in a MAC header of the subframe does not include a TA; or an address portion in a MAC header of the subframe does not include an RA; or, The address part in the MAC header of one of the subframes does not include the RA, and the address part in the MAC header of the other subframe does not include the TA and the RA; or the address part in the MAC header of the first subframe does not Including the TA, the address portion in the MAC header of other subframes does not include TA and RA.

进一步的，所述第二标识信息包括部分关联标识PAID。 Further, the second identification information includes a partial association identifier PAID.

图11为本发明AP的另一个实施例的结构示意图，如图11所示，本实施例的设备可以包括：处理器31和发送器32，其中，处理器31，用于生成媒质接入控制MAC包头，所述MAC包头的格式为压缩MAC包头占用的字节数后的MAC包头格式；将所述MAC包头和MAC帧体封装在物理层协议数据单元PPDU中；发送器32，用于将所述PPDU发送给至少一个站点STA。FIG. 11 is a schematic structural diagram of another embodiment of an AP according to the present invention. As shown in FIG. 11, the device in this embodiment may include: a processor 31 and a transmitter 32, where the processor 31 is configured to generate media access control. a MAC header, the format of the MAC header is a MAC header format after compressing the number of bytes occupied by the MAC header; the MAC header and the MAC frame are encapsulated in a physical layer protocol data unit PPDU; and the transmitter 32 is configured to The PPDU is sent to at least one station STA.

进一步的，所述处理器31，具体用于所述MAC帧体包含多个子帧时，生成用于指示多个子帧的MAC包头，其中，所述每个子帧包含一个MAC包头。Further, the processor 31 is configured to: when the MAC frame body includes multiple subframes, generate a MAC header for indicating a plurality of subframes, where each subframe includes one MAC header.

进一步的，所述PPDU的MAC包头的格式包括：所有所述子帧的MAC包头中的地址部分不包括RA；或者，所有所述子帧的MAC包头中的地址部分不包括TA；或者，第一个所述子帧的MAC包头中的地址部分不包括RA，其他子帧的MAC包头中的地址部分不包括TA和RA；或者，第一个所述子帧的MAC包头中的地址部分不包括TA，其他子帧的MAC包头中的地址部分不包括TA和RA。Further, the format of the MAC header of the PPDU includes: the address part in the MAC header of all the subframes does not include the RA; or the address part in the MAC header of all the subframes does not include the TA; or, The address part in the MAC header of one of the subframes does not include the RA, and the address part in the MAC header of the other subframe does not include the TA and the RA; or the address part in the MAC header of the first subframe does not Including the TA, the address portion in the MAC header of other subframes does not include TA and RA.

图12为本发明STA的另一个实施例的结构示意图，如图12所示，本实施例的设备可以包括：接收器41和处理器42，其中，接收器41，用于接收物理层协议数据单元PPDU，所述PPDU包括信令部分和媒质接入控制MAC包头；处理器42，用于根据所述信令部分、所述MAC包头中的地址部分以及本地MAC地址确定是否解调所述PPDU。FIG. 12 is a schematic structural diagram of another embodiment of a STA according to the present invention. As shown in FIG. 12, the device in this embodiment may include: a receiver 41 and a processor 42, wherein the receiver 41 is used. Receiving a physical layer protocol data unit PPDU, the PPDU includes a signaling part and a medium access control MAC header; the processor 42 is configured to determine, according to the signaling part, an address part in the MAC header, and a local MAC address Whether to demodulate the PPDU.

进一步的，所述处理器42，具体用于根据所述信令部分中的被调度的STA的标识信息和所述MAC包头中的地址部分确定所述PPDU的接收地址RA；根据所述PPDU的RA和本地MAC地址确定是否解调所述PPDU。Further, the processor 42 is specifically configured to determine, according to the identifier information of the scheduled STA in the signaling part and the address part in the MAC header, the receiving address RA of the PPDU, according to the PPDU. The RA and the local MAC address determine whether to demodulate the PPDU.

图13为本发明通信***的一个实施例的结构示意图，如图13所示，本实施例的***包括：AP和至少一个STA，其中，AP可以采用图9所示装置实施例的结构，其对应地，可以执行图3所示方法实施例的技术方案，其实现原理和技术效果类似，此处不再赘述；STA可以采用图10所示装置实施例的结构，其对应地，可以执行图8所示方法实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。FIG. 13 is a schematic structural diagram of an embodiment of a communication system according to the present invention. As shown in FIG. 13, the system of the present embodiment includes: an AP and at least one STA, wherein the AP can adopt the structure of the apparatus embodiment shown in FIG. Correspondingly, the technical solution of the method embodiment shown in FIG. 3 can be performed, and the implementation principle and the technical effect are similar, and details are not described herein; the STA can adopt the structure of the device embodiment shown in FIG. 10, and correspondingly, the figure can be executed. The technical solution of the method embodiment shown in FIG. 8 is similar in implementation principle and technical effect, and details are not described herein again.

进一步的，图13所示的***结构示意图中，AP也可以采用图11所示装置实施例的结构，其对应地，可以执行图3所示方法实施例的技术方案，其实现原理和技术效果类似，此处不再赘述；STA也可以采用图12所示装置实施例的结构，其对应地，可以执行图8所示方法实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。Further, in the system structure diagram shown in FIG. 13, the AP may also adopt the structure of the device embodiment shown in FIG. 11, and correspondingly, the technical method of the method embodiment shown in FIG. 3 may be performed. The implementation principle and the technical effect are similar, and are not described here again; the STA can also adopt the structure of the device embodiment shown in FIG. 12, and correspondingly, the technical solution of the method embodiment shown in FIG. 8 can be executed, and the implementation principle thereof is implemented. Similar to the technical effect, it will not be described here.

本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。One of ordinary skill in the art will appreciate that all or part of the steps to implement the various method embodiments described above may be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。 Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

一种媒介访问控制MAC包头压缩方法，其特征在于，包括：A medium access control MAC header compression method, comprising:

生成媒质接入控制MAC包头，所述MAC包头的格式为压缩MAC包头占用的字节数后的MAC包头格式；Generating a medium access control MAC header, where the format of the MAC header is a MAC header format after compressing the number of bytes occupied by the MAC header;

将所述MAC包头和MAC帧体封装在物理层协议数据单元PPDU中；Encapsulating the MAC header and the MAC frame body in a physical layer protocol data unit PPDU;

将所述PPDU发送给至少一个站点STA。Sending the PPDU to at least one station STA.
根据权利要求1所述的方法，其特征在于，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第一标识信息时，所述MAC包头中的地址部分不包括接收地址RA。The method according to claim 1, wherein the format of the MAC header of the PPDU comprises: when the signaling part of the PPDU includes the first identification information of the scheduled STA, the address part of the MAC header is not Includes the receiving address RA.
根据权利要求1所述的方法，其特征在于，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第一标识信息时，所述MAC包头中的地址部分不包括发送地址TA。The method according to claim 1, wherein the format of the MAC header of the PPDU comprises: when the signaling part of the PPDU includes the first identification information of the scheduled STA, the address part of the MAC header is not Includes the sending address TA.
根据权利要求1所述的方法，其特征在于，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第二标识信息时，所述MAC包头中的地址部分不包括TA。The method according to claim 1, wherein the format of the MAC header of the PPDU comprises: when the signaling part of the PPDU includes the second identification information of the scheduled STA, the address part of the MAC header is not Includes TA.
根据权利要求1所述的方法，其特征在于，所述生成MAC包头，包括：The method according to claim 1, wherein said generating a MAC header comprises:

所述MAC帧体包含多个子帧时，生成用于指示多个子帧的MAC包头，其中，所述每个子帧包含一个MAC包头。When the MAC frame body includes multiple subframes, a MAC header for indicating a plurality of subframes is generated, where each subframe includes one MAC header.
根据权利要求5所述的方法，其特征在于，所述PPDU的MAC包头的格式包括：The method according to claim 5, wherein the format of the MAC header of the PPDU comprises:

所有所述子帧的MAC包头中的地址部分不包括RA；或者，The address portion in the MAC header of all the subframes does not include RA; or,

所有所述子帧的MAC包头中的地址部分不包括TA；或者，The address portion in the MAC header of all the subframes does not include the TA; or,

第一个所述子帧的MAC包头中的地址部分不包括RA，其他子帧的MAC包头中的地址部分不包括TA和RA；或者，The address part in the MAC header of the first subframe does not include the RA, and the address part in the MAC header of the other subframe does not include the TA and the RA; or

第一个所述子帧的MAC包头中的地址部分不包括TA，其他子帧的MAC包头中的地址部分不包括TA和RA。The address portion in the MAC header of the first subframe does not include the TA, and the address portion in the MAC header of the other subframe does not include the TA and the RA.
根据权利要求2或3所述的方法，其特征在于，所述第一标识信息包括关联标识AID或组标识GID。The method according to claim 2 or 3, wherein the first identification information comprises an association identifier AID or a group identifier GID.
根据权利要求4所述的方法，其特征在于，所述第二标识信息包括部分关联标识PAID。The method according to claim 4, wherein said second identification information packet A partial association identifier PAID.
一种媒介访问控制MAC包头压缩方法，其特征在于，包括：A medium access control MAC header compression method, comprising:

接收物理层协议数据单元PPDU，所述PPDU包括信令部分和媒质接入控制MAC包头；Receiving a physical layer protocol data unit PPDU, where the PPDU includes a signaling part and a medium access control MAC header;

根据所述信令部分、所述MAC包头中的地址部分以及本地MAC地址确定是否解调所述PPDU。Whether to demodulate the PPDU is determined according to the signaling portion, the address portion in the MAC header, and the local MAC address.
根据权利要求9所述的方法，其特征在于，所述根据所述信令部分、所述MAC包头中的地址部分以及本地MAC地址确定是否解调所述PPDU，包括：The method according to claim 9, wherein the determining whether to demodulate the PPDU according to the signaling part, the address part in the MAC header, and the local MAC address comprises:

根据所述信令部分中的被调度的STA的标识信息和所述MAC包头中的地址部分确定所述PPDU的接收地址RA；Determining a receiving address RA of the PPDU according to the identifier information of the scheduled STA in the signaling part and the address part in the MAC header;

根据所述PPDU的RA和本地MAC地址确定是否解调所述PPDU。Determining whether to demodulate the PPDU according to the RA and the local MAC address of the PPDU.
根据权利要求9或10所述的方法，其特征在于，所述信令部分包括被调度的STA的第一标识信息，所述MAC包头中的地址部分不包括RA。The method according to claim 9 or 10, wherein the signaling part comprises first identification information of the scheduled STA, and the address part in the MAC header does not include the RA.
根据权利要求9或10所述的方法，其特征在于，所述信令部分包括被调度的STA的第一标识信息，所述MAC包头中的地址部分不包括发送地址TA。The method according to claim 9 or 10, wherein the signaling part comprises first identification information of the scheduled STA, and the address part in the MAC header does not include the transmission address TA.
根据权利要求9或10所述的方法，其特征在于，所述信令部分包括被调度的STA的第二标识信息，所述MAC包头中的地址部分不包括TA。The method according to claim 9 or 10, wherein the signaling part comprises second identification information of the scheduled STA, and the address part in the MAC header does not include a TA.
根据权利要求9或10所述的方法，其特征在于，所述PPDU包括至少一个子帧的MAC包头；The method according to claim 9 or 10, wherein the PPDU comprises a MAC header of at least one subframe;

所述子帧的MAC包头中的地址部分不包括TA；或者，The address part in the MAC header of the subframe does not include the TA; or,

所述子帧的MAC包头中的地址部分不包括RA；或者，The address part in the MAC header of the subframe does not include RA; or,

第一个所述子帧的MAC包头中的地址部分不包括RA，其他子帧的MAC包头中的地址部分不包括TA和RA；或者，The address part in the MAC header of the first subframe does not include the RA, and the address part in the MAC header of the other subframe does not include the TA and the RA; or

第一个所述子帧的MAC包头中的地址部分不包括TA，其他子帧的MAC包头中的地址部分不包括TA和RA。The address portion in the MAC header of the first subframe does not include the TA, and the address portion in the MAC header of the other subframe does not include the TA and the RA.
根据权利要求11或12所述的方法，其特征在于，所述第一标识信息包括关联标识AID或组标识GID。Method according to claim 11 or 12, wherein said first identification The information includes an association identifier AID or a group identifier GID.
根据权利要求13所述的方法，其特征在于，所述第二标识信息包括部分关联标识PAID。The method of claim 13 wherein said second identification information comprises a partial association identification PAID.
一种接入点AP，其特征在于，包括：An access point AP, comprising:

包头生成模块，用于生成媒质接入控制MAC包头，所述MAC包头的格式为压缩MAC包头占用的字节数后的MAC包头格式；a packet header generating module, configured to generate a media access control MAC packet header, where the format of the MAC packet header is a MAC header format after compressing the number of bytes occupied by the MAC packet header;

封装模块，用于将所述MAC包头和MAC帧体封装在物理层协议数据单元PPDU中；An encapsulating module, configured to encapsulate the MAC header and the MAC frame body in a physical layer protocol data unit PPDU;

发送模块，用于将所述PPDU发送给至少一个站点STA。And a sending module, configured to send the PPDU to at least one station STA.
根据权利要求17所述的AP，其特征在于，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第一标识信息时，所述MAC包头中的地址部分不包括接收地址RA。The AP according to claim 17, wherein the format of the MAC header of the PPDU comprises: when the signaling part of the PPDU includes the first identification information of the scheduled STA, the address part in the MAC header is not Includes the receiving address RA.
根据权利要求17所述的AP，其特征在于，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第一标识信息时，所述MAC包头中的地址部分不包括发送地址TA。The AP according to claim 17, wherein the format of the MAC header of the PPDU comprises: when the signaling part of the PPDU includes the first identification information of the scheduled STA, the address part in the MAC header is not Includes the sending address TA.
根据权利要求17所述的AP，其特征在于，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第二标识信息时，所述MAC包头中的地址部分不包括TA。The AP according to claim 17, wherein the format of the MAC header of the PPDU comprises: when the signaling part of the PPDU includes the second identification information of the scheduled STA, the address part of the MAC header is not Includes TA.
根据权利要求17所述的AP，其特征在于，所述包头生成模块，具体用于所述MAC帧体包含多个子帧时，生成用于指示多个子帧的MAC包头，其中，所述每个子帧包含一个MAC包头。The AP according to claim 17, wherein the packet header generating module is configured to: when the MAC frame body includes multiple subframes, generate a MAC header for indicating a plurality of subframes, wherein each of the sub-frames The frame contains a MAC header.
根据权利要求21所述的AP，其特征在于，所述PPDU的MAC包头的格式包括：The AP according to claim 21, wherein the format of the MAC header of the PPDU comprises:

所有所述子帧的MAC包头中的地址部分不包括RA；或者，The address portion in the MAC header of all the subframes does not include RA; or,

所有所述子帧的MAC包头中的地址部分不包括TA；或者，The address portion in the MAC header of all the subframes does not include the TA; or,

第一个所述子帧的MAC包头中的地址部分不包括RA，其他子帧的MAC包头中的地址部分不包括TA和RA；或者，The address part in the MAC header of the first subframe does not include the RA, and the address part in the MAC header of the other subframe does not include the TA and the RA; or

第一个所述子帧的MAC包头中的地址部分不包括TA，其他子帧的MAC包头中的地址部分不包括TA和RA。The address portion in the MAC header of the first subframe does not include the TA, and the address portion in the MAC header of the other subframe does not include the TA and the RA.
根据权利要求18或19所述的AP，其特征在于，所述第一标识信息包括关联标识AID或组标识GID。The AP according to claim 18 or 19, wherein the first identifier The information includes an association identifier AID or a group identifier GID.
根据权利要求20所述的AP，其特征在于，所述第二标识信息包括部分关联标识PAID。The AP according to claim 20, wherein said second identification information comprises a partial association identifier PAID.
一种站点STA，其特征在于，包括：A station STA, characterized in that it comprises:

接收模块，用于接收物理层协议数据单元PPDU，所述PPDU包括信令部分和媒质接入控制MAC包头；a receiving module, configured to receive a physical layer protocol data unit PPDU, where the PPDU includes a signaling part and a medium access control MAC header;

确定模块，用于根据所述信令部分、所述MAC包头中的地址部分以及本地MAC地址确定是否解调所述PPDU。And a determining module, configured to determine whether to demodulate the PPDU according to the signaling part, an address part in the MAC header, and a local MAC address.
根据权利要求25所述的STA，其特征在于，所述确定模块，具体用于根据所述信令部分中的被调度的STA的标识信息和所述MAC包头中的地址部分确定所述PPDU的接收地址RA；根据所述PPDU的RA和本地MAC地址确定是否解调所述PPDU。The STA according to claim 25, wherein the determining module is configured to determine, according to the identifier information of the scheduled STA in the signaling part and the address part in the MAC header, the PPDU. Receiving an address RA; determining whether to demodulate the PPDU according to the RA and the local MAC address of the PPDU.
根据权利要求25或26所述的STA，其特征在于，所述信令部分包括被调度的STA的第一标识信息，所述MAC包头中的地址部分不包括RA。The STA according to claim 25 or 26, wherein the signaling portion includes first identification information of the scheduled STA, and the address portion in the MAC header does not include the RA.
根据权利要求25或26所述的STA，其特征在于，所述信令部分包括被调度的STA的第一标识信息，所述MAC包头中的地址部分不包括发送地址TA。The STA according to claim 25 or 26, wherein the signaling portion includes first identification information of the scheduled STA, and the address portion in the MAC header does not include the transmission address TA.
根据权利要求25或26所述的STA，其特征在于，所述信令部分包括被调度的STA的第二标识信息，所述MAC包头中的地址部分不包括TA。The STA according to claim 25 or 26, wherein the signaling portion includes second identification information of the scheduled STA, and the address portion in the MAC header does not include the TA.
根据权利要求25或26所述的STA，其特征在于，所述PPDU包括至少一个子帧的MAC包头；The STA according to claim 25 or 26, wherein the PPDU comprises a MAC header of at least one subframe;

所述子帧的MAC包头中的地址部分不包括TA；或者，The address part in the MAC header of the subframe does not include the TA; or,

所述子帧的MAC包头中的地址部分不包括RA；或者，The address part in the MAC header of the subframe does not include RA; or,

第一个所述子帧的MAC包头中的地址部分不包括RA，其他子帧的MAC包头中的地址部分不包括TA和RA；或者，The address part in the MAC header of the first subframe does not include the RA, and the address part in the MAC header of the other subframe does not include the TA and the RA; or

第一个所述子帧的MAC包头中的地址部分不包括TA，其他子帧的MAC包头中的地址部分不包括TA和RA。The address portion in the MAC header of the first subframe does not include the TA, and the address portion in the MAC header of the other subframe does not include the TA and the RA.
根据权利要求27或28所述的STA，其特征在于，所述第一标识信息包括关联标识AID或组标识GID。The STA according to claim 27 or 28, wherein the first identifier The information includes an association identifier AID or a group identifier GID.
根据权利要求29所述的STA，其特征在于，所述第二标识信息包括部分关联标识PAID。The STA according to claim 29, wherein said second identification information comprises a partial association identifier PAID.
一种接入点AP，其特征在于，包括：An access point AP, comprising:

处理器，用于生成媒质接入控制MAC包头，所述MAC包头的格式为压缩MAC包头占用的字节数后的MAC包头格式；将所述MAC包头和MAC帧体封装在物理层协议数据单元PPDU中；a processor, configured to generate a medium access control MAC header, where the format of the MAC header is a MAC header format after compressing the number of bytes occupied by the MAC header; and the MAC header and the MAC frame are encapsulated in a physical layer protocol data unit. PPDU;

发送器，用于将所述PPDU发送给至少一个站点STA。And a transmitter, configured to send the PPDU to at least one station STA.
根据权利要求33所述的AP，其特征在于，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第一标识信息时，所述MAC包头中的地址部分不包括接收地址RA。The AP according to claim 33, wherein the format of the MAC header of the PPDU comprises: when the signaling part of the PPDU includes the first identification information of the scheduled STA, the address part of the MAC header is not Includes the receiving address RA.
根据权利要求33所述的AP，其特征在于，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第一标识信息时，所述MAC包头中的地址部分不包括发送地址TA。The AP according to claim 33, wherein the format of the MAC header of the PPDU comprises: when the signaling part of the PPDU includes the first identification information of the scheduled STA, the address part of the MAC header is not Includes the sending address TA.
根据权利要求33所述的AP，其特征在于，所述PPDU的MAC包头的格式包括：当PPDU的信令部分包括被调度的STA的第二标识信息时，所述MAC包头中的地址部分不包括TA。The AP according to claim 33, wherein the format of the MAC header of the PPDU comprises: when the signaling part of the PPDU includes the second identification information of the scheduled STA, the address part of the MAC header is not Includes TA.
根据权利要求33所述的AP，其特征在于，所述处理器，具体用于所述MAC帧体包含多个子帧时，生成用于指示多个子帧的MAC包头，其中，所述每个子帧包含一个MAC包头。The AP according to claim 33, wherein the processor is configured to: when the MAC frame body includes multiple subframes, generate a MAC header for indicating a plurality of subframes, where each subframe Contains a MAC header.
根据权利要求37所述的AP，其特征在于，所述PPDU的MAC包头的格式包括：The AP according to claim 37, wherein the format of the MAC header of the PPDU comprises:

所有所述子帧的MAC包头中的地址部分不包括RA；或者，The address portion in the MAC header of all the subframes does not include RA; or,

所有所述子帧的MAC包头中的地址部分不包括TA；或者，The address portion in the MAC header of all the subframes does not include the TA; or,

第一个所述子帧的MAC包头中的地址部分不包括RA，其他子帧的MAC包头中的地址部分不包括TA和RA；或者，The address part in the MAC header of the first subframe does not include the RA, and the address part in the MAC header of the other subframe does not include the TA and the RA; or

第一个所述子帧的MAC包头中的地址部分不包括TA，其他子帧的MAC包头中的地址部分不包括TA和RA。The address portion in the MAC header of the first subframe does not include the TA, and the address portion in the MAC header of the other subframe does not include the TA and the RA.
根据权利要求34或35所述的AP，其特征在于，所述第一标识信息包括关联标识AID或组标识GID。 The AP according to claim 34 or 35, wherein the first identification information comprises an association identifier AID or a group identifier GID.
根据权利要求36所述的AP，其特征在于，所述第二标识信息包括部分关联标识PAID。The AP according to claim 36, wherein said second identification information comprises a partial association identifier PAID.
一种站点STA，其特征在于，包括：A station STA, characterized in that it comprises:

接收器，用于接收物理层协议数据单元PPDU，所述PPDU包括信令部分和媒质接入控制MAC包头；a receiver, configured to receive a physical layer protocol data unit PPDU, where the PPDU includes a signaling part and a medium access control MAC header;

处理器，用于根据所述信令部分、所述MAC包头中的地址部分以及本地MAC地址确定是否解调所述PPDU。And a processor, configured to determine whether to demodulate the PPDU according to the signaling part, an address part in the MAC header, and a local MAC address.
根据权利要求41所述的STA，其特征在于，所述处理器，具体用于根据所述信令部分中的被调度的STA的标识信息和所述MAC包头中的地址部分确定所述PPDU的接收地址RA；根据所述PPDU的RA和本地MAC地址确定是否解调所述PPDU。The STA according to claim 41, wherein the processor is specifically configured to determine, according to the identifier information of the scheduled STA in the signaling part and the address part in the MAC header, the PPDU. Receiving an address RA; determining whether to demodulate the PPDU according to the RA and the local MAC address of the PPDU.
根据权利要求41或42所述的STA，其特征在于，所述信令部分包括被调度的STA的第一标识信息，所述MAC包头中的地址部分不包括RA。The STA according to claim 41 or 42, wherein the signaling portion includes first identification information of the scheduled STA, and the address portion in the MAC header does not include the RA.
根据权利要求41或42所述的STA，其特征在于，所述信令部分包括被调度的STA的第一标识信息，所述MAC包头中的地址部分不包括发送地址TA。The STA according to claim 41 or 42, wherein the signaling portion includes first identification information of the scheduled STA, and the address portion in the MAC header does not include the transmission address TA.
根据权利要求41或42所述的STA，其特征在于，所述信令部分包括被调度的STA的第二标识信息，所述MAC包头中的地址部分不包括TA。The STA according to claim 41 or 42, wherein the signaling portion includes second identification information of the scheduled STA, and the address portion in the MAC header does not include the TA.
根据权利要求41或42所述的STA，其特征在于，所述PPDU包括至少一个子帧的MAC包头；The STA according to claim 41 or 42, wherein the PPDU comprises a MAC header of at least one subframe;

所述子帧的MAC包头中的地址部分不包括TA；或者，The address part in the MAC header of the subframe does not include the TA; or,

所述子帧的MAC包头中的地址部分不包括RA；或者，The address part in the MAC header of the subframe does not include RA; or,

第一个所述子帧的MAC包头中的地址部分不包括RA，其他子帧的MAC包头中的地址部分不包括TA和RA；或者，The address part in the MAC header of the first subframe does not include the RA, and the address part in the MAC header of the other subframe does not include the TA and the RA; or

第一个所述子帧的MAC包头中的地址部分不包括TA，其他子帧的MAC包头中的地址部分不包括TA和RA。The address portion in the MAC header of the first subframe does not include the TA, and the address portion in the MAC header of the other subframe does not include the TA and the RA.
根据权利要求43或44所述的STA，其特征在于，所述第一标识信息包括关联标识AID或组标识GID。 The STA according to claim 43 or 44, wherein the first identification information comprises an association identifier AID or a group identity GID.
根据权利要求45所述的STA，其特征在于，所述第二标识信息包括部分关联标识PAID。The STA according to claim 45, wherein said second identification information comprises a partial association identifier PAID.
一种通信***，其特征在于，包括：接入点AP和至少一个站点STA，其中，所述AP为权利要求17～24中任一项所述的AP，所述STA为权利要求25～32中任一项所述的STA。A communication system, comprising: an access point AP and at least one station STA, wherein the AP is the AP according to any one of claims 17 to 24, and the STA is according to claims 25-32 STA according to any one of the preceding claims.
一种通信***，其特征在于，包括：接入点AP和至少一个站点STA，其中，所述AP为权利要求33～40中任一项所述的AP，所述STA为权利要求41～48中任一项所述的STA。 A communication system, comprising: an access point AP and at least one station STA, wherein the AP is the AP according to any one of claims 33 to 40, and the STA is according to claims 41-48 STA according to any one of the preceding claims.