公开(公告)号：US20140169290A1

公开(公告)日：2014-06-19

申请号：US14100911

申请日：2013-12-09

Applicant: LG ELECTRONICS INC.

Inventor： Yongho SEOK

IPC: H04L5/00

CPC classification number: H04W74/006 ,  H04W4/70 ,  H04W74/0808 ,  H04W84/12

Abstract: The present invention relates to a wireless communication system, and more specifically, to a backoff method and apparatus in slotted channel access in a Wireless Local Area Network (WLAN) system are disclosed. A method for performing channel access by a station (STA) in a WLAN system includes: receiving restricted access window (RAW) configuration information for the STA from an access point (AP); performing a backoff procedure using a second backoff function state for channel access within the RAW; and performing a backoff procedure using a first backoff function state at an end of the RAW. The STA maintains a plurality of backoff function states including the first backoff function state used outside the RAW and the second backoff function state used within the RAW.

Abstract translation: 本发明涉及一种无线通信系统，更具体地说，涉及一种在无线局域网（WLAN）系统中的时隙信道接入中的退避方法和装置。 一种用于在WLAN系统中由站（STA）执行信道访问的方法包括：从接入点（AP）接收STA的受限访问窗口（RAW）配置信息; 使用第二退避功能状态对RAW内的频道访问执行退避过程; 并且在RAW结束时使用第一退避功能状态执行退避过程。 STA维持多个退避功能状态，包括在RAW之外使用的第一退避功能状态和在RAW内使用的第二退避功能状态。

公开(公告)号：US20130100874A1

公开(公告)日：2013-04-25

申请号：US13711058

申请日：2012-12-11

Applicant: LG Electronics Inc.

Inventor： Yongho SEOK

IPC: H04W4/06

CPC classification number: H04W4/06 ,  H04H20/61 ,  H04H2201/70 ,  H04L12/1886

Abstract: A method of processing a multicast frame in a wireless local area network system. The method includes transmitting a request message for requesting a Directed Multicast Service (DMS) in which at least one multicast frame is transmitted as at least one unicast frame by an Access Point (AP), receiving a response message from the AP in response to the request message, and receiving the at least one multicast frame from the AP, the at least one multicast frame being transmitted as the at least one unicast frame. The request message includes a DMS descriptor list field comprising a Transmission Class (TCLAS) element field and a Transmission Specification (TSPEC) element field. The TCLAS element field includes a requested multicast group address for the DMS. The TSPEC element field defines Quality of Service (QoS) expectations information for the DMS.

Abstract translation: 一种在无线局域网系统中处理多播帧的方法。 该方法包括：发送请求消息，用于请求定向组播服务（DMS），其中至少一个多播帧由接入点（AP）作为至少一个单播帧发送，响应于该接收点接收来自AP的响应消息 请求消息，以及从所述AP接收所述至少一个多播帧，所述至少一个多播帧作为所述至少一个单播帧发送。 请求消息包括包括传输类（TCLAS）元素字段和传输规范（TSPEC）元素字段的DMS描述符列表字段。 TCLAS元素字段包括DMS的所请求的多播组地址。 TSPEC元素字段定义了DMS的服务质量（QoS）期望信息。

公开(公告)号：US20130094429A1

公开(公告)日：2013-04-18

申请号：US13707225

申请日：2012-12-06

Applicant: LG ELECTRONICS INC.

Inventor： Yongho SEOK

IPC: H04L12/18

CPC classification number: H04L12/189 ,  H04L1/1829 ,  H04L1/1887 ,  H04L2001/0093

Abstract: A method for retransmitting a multicast frame in a wireless network and for determining whether a received multicast frame is a duplicated frame. In determining whether the received multicast frame is the same duplicated frame as a previously received multicast frame, a receiver address value and a sequence number of the multicast frame may be used. When fragmentation of a multicast frame is allowed, the value of a fragment number of the multicast frame may be also used, and if it includes a traffic ID, the value of the traffic ID can be also used for determining whether or not the multicast frame is a duplicated frame. If a multicast frame is transmitted in a wireless mesh network, it is determined whether or not the multicast frame is a duplicated one by using a mesh source address, a mesh destination address, and a sequence number.

Abstract translation: 一种用于在无线网络中重传多播帧并确定接收到的多播帧是否是复制帧的方法。 在确定接收的多播帧是否与先前接收到的多播帧相同的复制帧时，可以使用多播帧的接收机地址值和序列号。 当允许多播帧分片时，也可以使用多播帧的片段号的值，如果包含流量ID，则流量ID的值也可以用于确定多播帧 是一个重复的框架。 如果在无线网状网络中发送多播帧，则通过使用网格源地址，网格目的地址和序列号来确定多播帧是否为复制帧。