发明名称 |
Midpacket detection schemes for clear channel assessment (CCA) |
摘要 |
Certain aspects of the present disclosure provide methods and apparatus for detecting ongoing transmissions and assessing channel state, based on midpacket detection. One example method generally includes receiving signals on a primary channel; detecting, based on the received signals, occurrence or non-occurrence of a first ongoing packet transmission on a primary channel; and generating at least one of a busy signal or an idle signal based on the detection. In this manner, collisions may be avoided. |
申请公布号 |
US9439091(B2) |
申请公布日期 |
2016.09.06 |
申请号 |
US201414466031 |
申请日期 |
2014.08.22 |
申请人 |
QUALCOMM Incorporated |
发明人 |
Tian Bin;Baik Eugene Jong-Hyon;Vermani Sameer;Tian Tao |
分类号 |
H04W4/00;H04W24/08;H04L27/00;H04W74/08;H04W52/02;H04L5/00;H04W84/12 |
主分类号 |
H04W4/00 |
代理机构 |
Patterson & Sheridan, LLP |
代理人 |
Patterson & Sheridan, LLP |
主权项 |
1. An apparatus for wireless communications, comprising:
a receiver configured to receive signals on a primary channel; and a processing system configured to:
detect, based on the received signals, occurrence or non-occurrence of a first on-going packet transmission on the primary channel, wherein the processing system is further configured to detect occurrence or non-occurrence of a second on-going packet transmission on a secondary channel, and wherein a first detection level is used when performing detection for the primary channel and a second detection level is used when performing detection for the secondary channel; andgenerate at least one of a busy signal or an idle signal based on the detection. |
地址 |
San Diego CA US |