公开(公告)号：US20210099962A1

公开(公告)日：2021-04-01

申请号：US17118506

申请日：2020-12-10

Applicant: QUALCOMM Incorporated

Inventor： Arjun BHARADWAJ ,  Rahul TANDRA ,  Bin TIAN ,  Youhan KIM ,  Simone MERLIN ,  George CHERIAN

IPC: H04W52/24 ,  H04W52/14 ,  H04L27/26 ,  H04B7/0452 ,  H04L1/00 ,  H04W52/22 ,  H04L5/00

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the apparatus is configured to determine a target receiver power level for uplink transmissions received at the apparatus, to determine uplink power control information based on the determined target receiver power level for UL MU-MIMO transmission or UL OFDMA transmission, and to transmit a frame that includes the determined uplink power control information to a station scheduled by the apparatus for uplink transmission.

公开(公告)号：US20150023335A1

公开(公告)日：2015-01-22

申请号：US14332301

申请日：2014-07-15

Applicant: QUALCOMM Incorporated

Inventor： Sameer VERMANI ,  Rahul TANDRA ,  Didier Johannes Richard VAN NEE ,  Albert VAN ZELST ,  Hemanth SAMPATH ,  Bin TIAN

IPC: H04W56/00 ,  H04B7/04

CPC classification number: H04W56/0035 ,  H04B7/0404 ,  H04B7/0452 ,  H04B7/0684 ,  H04L5/0048 ,  H04L27/26 ,  H04L27/261 ,  H04L27/2613 ,  H04L27/2657 ,  H04W84/12

Abstract: Certain aspects of the present disclosure provide methods and apparatus for uplink (UL) multiuser multiple-input, multiple-output (MU-MIMO) transmissions in a High Efficiency WLAN (HEW) system. One example method generally includes generating a packet having a preamble portion and transmitting the packet. The preamble portion typically includes a long training field (LTF); a first signal (SIG) field subsequent to the LTF; one or more other LTFs located subsequent to the first SIG field; and at least one second SIG field, wherein all SIG fields in the preamble portion, other than the first SIG field, are subsequent to the one or more other LTFs. Another example method generally includes receiving, from an apparatus, a packet having a preamble portion comprising tone-interleaved LTFs; and performing frequency offset adjustment on the packet based on the tone-interleaved LTFs.

Abstract translation: 本公开的某些方面提供了在高效率WLAN（HEW）系统中用于上行链路（UL）多用户多输入多输出（MU-MIMO）传输的方法和装置。 一个示例性方法通常包括生成具有前导码部分并发送分组的分组。 前导码部分通常包括长训练场（LTF）; 在LTF之后的第一信号（SIG）字段; 位于第一SIG场之后的一个或多个其它LTF; 以及至少一个第二SIG字段，其中除了第一SIG字段之外的前导码部分中的所有SIG字段都在一个或多个其他LTF之后。 另一示例性方法通常包括从装置接收具有包括色调交织的LTF的前导码部分的分组; 并基于色调交织的LTF对分组进行频偏调整。

公开(公告)号：US20150009894A1

公开(公告)日：2015-01-08

申请号：US14322048

申请日：2014-07-02

Applicant: QUALCOMM Incorporated

Inventor： Sameer VERMANI ,  Bin TIAN ,  Albert VAN ZELST ,  Didier Johannes Richard VAN NEE ,  Rahul TANDRA ,  Dung Ngoc DOAN ,  Tao TIAN

IPC: H04L1/00

CPC classification number: H04L1/0072 ,  H04L1/0007 ,  H04L5/0053 ,  H04L27/2602 ,  H04L27/2657 ,  H04W56/0035 ,  H04W74/0808 ,  H04W84/12

Abstract: Aspects of the present disclosure provide example preamble formats with repeated signal (SIG) fields that may help provide backwards compatibility and help address the effects of larger delay spreads in various wireless bands (e.g., WiFi bands).

Abstract translation: 本公开的方面提供具有重复信号（SIG）字段的示例前导码格式，其可以帮助提供向后兼容性并且帮助解决在各种无线频带（例如，WiFi频带）中较大延迟扩展的影响。

公开(公告)号：US20140314003A1

公开(公告)日：2014-10-23

申请号：US14255899

申请日：2014-04-17

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Santosh Paul ABRAHAM ,  Gwendolyn Denise BARRIAC ,  Simone MERLIN ,  Rahul TANDRA ,  Hemanth SAMPATH

IPC: H04W48/16

CPC classification number: H04W48/16 ,  H04W16/00 ,  H04W40/246 ,  H04W40/32 ,  H04W52/04 ,  H04W52/243 ,  H04W52/244

Abstract: Access points communicate via a discovery channel. For example, access points may transmit at a higher transmit power and at a lower rate on the discovery channel than on operating channels. In this way, the radio frequency range of the discovery channel is longer than the range of any of the operating channels. Consequently, a particular access point can communicate with and thereby account for other access points that the particular access point might not hear via an operating channel.

Abstract translation: 接入点通过发现通道进行通信。 例如，接入点可以在发现信道上以比在操作信道上更高的发射功率和较低的速率发射。 以这种方式，发现信道的射频范围比任何操作信道的范围长。 因此，特定的接入点可以与特定接入点可能经由操作信道听不到的其他接入点进行通信，从而考虑到其他接入点。