公开(公告)号：US10104664B2

公开(公告)日：2018-10-16

申请号：US15181354

申请日：2016-06-13

Applicant: MEDIATEK INC.

Inventor： Jianhan Liu ,  RongSheng Huang ,  Li Ma ,  Chao-Chun Wang

IPC: H04W72/04 ,  H04W74/08 ,  H04L5/00 ,  H04L27/26 ,  H04W16/14 ,  H04W84/12 ,  H04W88/02

Abstract: A unified channel contention scheme is proposed such that spatial reuse can be enabled by a wireless station (STA) when a basic service set (BSS) color of a received signal cannot be resolved. If the detected frame is an intra-BSS frame, then the STA should not contend the channel for the PPDU duration. If the detected frame is an inter-BSS frame, then the STA uses OBSS Packet Detection (OBSS-PD) level as the CCA level for channel contention. Furthermore, when BSS color cannot be resolved, channel contention schemes for WiFi signal and non-WiFi signal are differentiated. If the received signal is detected as WiFi signal, then the STA uses WiFi-SIG Detection (WD) level as the CCA level for channel contention. If the received signal is detected as non-WiFi signal, then the STA uses Non-WiFi-SIG Detection (NWD) level as the CCA level for channel contention.

公开(公告)号：US20160374087A1

公开(公告)日：2016-12-22

申请号：US15181354

申请日：2016-06-13

Applicant: MEDIATEK INC.

Inventor： Jianhan Liu ,  RongSheng Huang ,  Li Ma ,  Chao-Chun Wang

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00

CPC classification number: H04W72/0453 ,  H04L5/0007 ,  H04L27/2605 ,  H04W16/14 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/02

Abstract: A unified channel contention scheme is proposed such that spatial reuse can be enabled by a wireless station (STA) when a basic service set (BSS) color of a received signal cannot be resolved. If the detected frame is an intra-BSS frame, then the STA should not contend the channel for the PPDU duration. If the detected frame is an inter-BSS frame, then the STA uses OBSS Packet Detection (OBSS-PD) level as the CCA level for channel contention. Furthermore, when BSS color cannot be resolved, channel contention schemes for WiFi signal and non-WiFi signal are differentiated. If the received signal is detected as WiFi signal, then the STA uses WiFi-SIG Detection (WD) level as the CCA level for channel contention. If the received signal is detected as non-WiFi signal, then the STA uses Non-WiFi-SIG Detection (NWD) level as the CCA level for channel contention.

Abstract translation: 提出了一种统一的信道争用方案，使得当接收信号的基本服务集（BSS）颜色不能被解析时，可以由无线站（STA）使能空间重用。 如果检测到的帧是BSS内帧，则STA不应该对该PPDU持续时间进行竞争。 如果检测到的帧是BSS间帧，则STA使用OBSS分组检测（OBSS-PD）级作为CCA级别进行信道争用。 此外，当BSS颜色不能解决时，WiFi信号和非WiFi信号的信道争用方案是有区别的。 如果接收到的信号被检测为WiFi信号，则STA使用WiFi-SIG检测（WD）级作为用于信道争用的CCA级别。 如果接收到的信号被检测为非WiFi信号，则STA使用非WiFi-SIG检测（NWD）级作为用于信道争用的CCA级别。