发明名称 |
System and Method for Preambles in a Wireless Communications Network |
摘要 |
A method for transmitting a frame includes generating an omni portion of the frame, the omni portion including a non-beamformed long training field and a signal field, the non-beamformed long training field including channel estimation information used to decode the signal field, the non-beamformed long training field configured to be transmitted through one of multiple antennas and multiple streams. The method also includes generating a multi-stream portion of the frame, the multi-stream portion including a data field and a multi-stream long training field, the multi-stream long training field including station-specific decoding information for station-specific data in the data field. The method further includes applying a beamforming indicator to the signal field of the omni portion, and transmitting the frame. |
申请公布号 |
US2015271704(A1) |
申请公布日期 |
2015.09.24 |
申请号 |
US201514730728 |
申请日期 |
2015.06.04 |
申请人 |
Futurewei Technologies, Inc. |
发明人 |
Suh Jung Hoon;Li Yunbo;Au Kwok Shum;Aboul-Magd Osama;Sun Sheng |
分类号 |
H04W28/06;H04L29/06;H04L5/00;H04B7/06 |
主分类号 |
H04W28/06 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method for transmitting a frame, the method comprising:
generating, by an access point, a non-beamformed omni portion of the frame, wherein the non-beamformed omni portion includes a short training field, a first long training field and a signal field, wherein the first long training field includes channel estimation information for decoding the signal field, and wherein the signal field includes a beam forming field indicating whether beamforming is used for a multi-stream portion of the frame; generating, by the access point, the multi-stream portion of the frame, wherein the multi-stream portion of the frame is located after the omni portion of the frame, wherein the multi-stream portion includes a second long training field and a data field, and wherein the second long training field includes reference signal information for channel estimation of station-specific data in the data field; and wirelessly transmitting, by the access point, the frame. |
地址 |
Plano TX US |