公开(公告)号：US20210410188A1

公开(公告)日：2021-12-30

申请号：US17335243

申请日：2021-06-01

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Youhan KIM ,  Bin TIAN

IPC: H04W74/08 ,  H04W74/00 ,  H04L27/26

Abstract: This disclosure provides systems, methods, and apparatuses for wireless communication that can be used to reduce the peak-to-average power ratio (PAPR) of data transmissions by increasing the degree of randomness with which data is scrambled for transmission over a wireless medium. In some implementations, a transmitting device may determine a scrambler seed value that includes at least 11 bits, where at least one of the 7 least significant bits (LSBs) of the scrambler seed value has a non-zero value. The transmitting device may generate a scrambling sequence based on the scrambler seed value and a polynomial, may construct a physical layer convergence protocol (PLCP) protocol data unit (PPDU) that includes a multi-user (MU) request-to-send (RTS) frame and the scrambler seed value, may scramble one or more portions of the PPDU based on the scrambling sequence; and may transmit the PPDU over a wireless medium.

公开(公告)号：US20210184743A1

公开(公告)日：2021-06-17

申请号：US17132091

申请日：2020-12-23

Applicant: QUALCOMM Incorporated

Inventor： Sameer VERMANI ,  Bin TIAN

IPC: H04B7/06 ,  H04L25/02 ,  H04B7/0452 ,  H04B7/024

Abstract: Certain aspects relate to methods and apparatus for wireless communication. The apparatus generally includes a first interface configured to output one first frame for transmission to solicit CSI feedback from each of one or more first wireless nodes associated with a first BSS and from each of one or more second wireless nodes associated with a second BSS, a second interface configured to obtain the CSI feedback solicited from the first and second wireless nodes, and a processing system configured to generate data frames for the first wireless nodes based on the CSI feedback solicited from the first wireless nodes, and one or more nulling frames based on the CSI feedback solicited from the second wireless nodes. The first interface is configured to simultaneously output the data frames for beamformed transmission to the first wireless nodes, and the nulling frames for beamformed transmission to the second wireless nodes.

公开(公告)号：US20210083918A1

公开(公告)日：2021-03-18

申请号：US17102422

申请日：2020-11-23

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Jialing Li CHEN ,  Bin TIAN

IPC: H04L27/26 ,  H04L25/03 ,  H04L5/00 ,  H03L7/091 ,  H04B7/08

Abstract: This disclosure provides methods, devices, and systems for a wireless communication device to perform signal phase rotation. In some implementations, the wireless communication device may determine a number of phase rotation parameters to be applied to a number of tones of a transmission signal. In some aspects, each of the phase rotation parameters indicates a phase rotation to be applied to each of the tones according to a carrier index range for each of the tones and a bandwidth mode for the transmission signal. In some implementations, the wireless communication device may apply the phase rotation parameters to respective ones of the tones according to the specified phase rotations and the carrier index ranges, and transmit the transmission signal from the wireless communication device according to the applied phase rotation parameters.

公开(公告)号：US20210006980A1

公开(公告)日：2021-01-07

申请号：US16928917

申请日：2020-07-14

Applicant: QUALCOMM Incorporated

Inventor： Sameer VERMANI ,  Bin TIAN ,  Jialing Li CHEN ,  Lin YANG

IPC: H04W16/10 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/06

Abstract: Certain aspects relate to methods and apparatus for wireless communication. The apparatus generally includes a processing system configured to generate a first frame including an indication of unused resources in a first basic service set (BSS) available to be shared with one or more wireless nodes in one or more second BSSs. The apparatus also includes a first interface configured to output the first frame for transmission to the one or more wireless nodes.

公开(公告)号：US20200169964A1

公开(公告)日：2020-05-28

申请号：US16775125

申请日：2020-01-28

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Bin TIAN ,  Gwendolyn Denise BARRIAC ,  Alfred ASTERJADHI ,  Simone MERLIN ,  George CHERIAN

IPC: H04W52/34 ,  H04W52/26 ,  H04W52/36 ,  H04W60/00 ,  H04W52/20 ,  H04W52/22 ,  H04W52/24

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the example method may include generating a data frame including a Medium Access Control (MAC) header or a physical layer (PHY) header. The MAC header or the PHY header of the data frame may include transmit power related information. The transmit power related information may include at least one of: a maximum transmit power, power backoff per modulation and coding scheme information, or an actual transmit power. The method may include transmitting the data frame to a second device.

公开(公告)号：US20200045560A1

公开(公告)日：2020-02-06

申请号：US16515978

申请日：2019-07-18

Applicant: QUALCOMM Incorporated

Inventor： Sameer VERMANI ,  Bin TIAN ,  Lin YANG

IPC: H04W16/28 ,  H04W56/00 ,  H04W72/04 ,  H04L1/16 ,  H04L25/02

Abstract: This disclosure provides systems, methods and apparatuses for concurrently transmitting beamformed data from each of a plurality of access points (APs) to a wireless station (STA). In some implementations, the plurality of APs may operate as a distributed antenna array, and carrier signals of the plurality of APs may be synchronized with each other. A beamforming steering matrix may be determined for each of the plurality of APs, and beamformed data may be concurrently transmitted from each of the plurality of APs to the STA based on corresponding ones of the plurality of beamforming steering matrices.

公开(公告)号：US20190141717A1

公开(公告)日：2019-05-09

申请号：US16157945

申请日：2018-10-11

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN ,  Jialing Li CHEN ,  Lochan VERMA ,  Sameer VERMANI ,  Ning ZHANG ,  Kai SHI ,  Youhan KIM ,  Vincent Knowles JONES, IV

IPC: H04W72/08 ,  H04L5/00 ,  H04L1/00 ,  H03M13/11 ,  H03M13/00

Abstract: Aspects of the present disclosure provide techniques for interleaving in single user (SU) preamble puncturing in wireless local area networks (WLANs). In one implementation, a wireless device can identify an SU preamble puncture transmission, encode information for the SU preamble puncture transmission to produce encoded bits, parse the encoded bits into multiple segments, parse the encoded bits among multiple resource units (RUs) within each of the multiple segments, and perform a tone interleaving of the encoded bits within each of the multiple RUs. These techniques can be used in a 6 GHz band, as well as a 2.4 GHz band or a 5 GHz band.

公开(公告)号：US20190028168A1

公开(公告)日：2019-01-24

申请号：US16042981

申请日：2018-07-23

Applicant: QUALCOMM Incorporated

Inventor： Sameer VERMANI ,  Bin TIAN

IPC: H04B7/06 ,  H04B7/0452 ,  H04L25/02

Abstract: Certain aspects relate to methods and apparatus for wireless communication. The apparatus generally includes a first interface configured to output one first frame for transmission to solicit CSI feedback from each of one or more first wireless nodes associated with a first BSS and from each of one or more second wireless nodes associated with a second BSS, a second interface configured to obtain the CSI feedback solicited from the first and second wireless nodes, and a processing system configured to generate data frames for the first wireless nodes based on the CSI feedback solicited from the first wireless nodes, and one or more nulling frames based on the CSI feedback solicited from the second wireless nodes. The first interface is configured to simultaneously output the data frames for beamformed transmission to the first wireless nodes, and the nulling frames for beamformed transmission to the second wireless nodes.

公开(公告)号：US20180376370A1

公开(公告)日：2018-12-27

申请号：US16009849

申请日：2018-06-15

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay SHELLHAMMER ,  Bin TIAN

IPC: H04W28/06 ,  H04W52/02 ,  H04L27/02 ,  H04L27/26

Abstract: A method of operation of an electronic device includes receiving a preamble portion of a packet from an access point using a wakeup receiver of the electronic device and receiving a data portion of the packet from the access point using the wakeup receiver. The preamble portion includes a preamble bit having a preamble bit duration, and the data portion includes a data bit having a data bit duration that is longer than the preamble bit duration.

公开(公告)号：US20180249421A1

公开(公告)日：2018-08-30

申请号：US15968641

申请日：2018-05-01

Applicant: QUALCOMM Incorporated

Inventor： Arjun BHARADWAJ ,  Bin TIAN

IPC: H04W52/14 ,  H04B17/318

CPC classification number: H04W52/146 ,  H04B7/0452 ,  H04B17/318 ,  H04B17/336 ,  H04L5/0007 ,  H04L5/0023 ,  H04W52/10 ,  H04W52/241 ,  H04W52/242 ,  H04W52/245 ,  H04W52/365 ,  H04W52/367 ,  H04W52/40 ,  H04W84/12

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 power control command including a target receiver power level for uplink transmission. The apparatus is configured to transmit a frame to a wireless device. The frame may include information associated with the determined target receiver power level for uplink transmission from the wireless device and a transmit power level at which the frame is to be transmitted. The information may enable the wireless device to compute a transmit power for the uplink transmission. The frame may include power control commands for other wireless devices.