公开(公告)号：US20160073387A1

公开(公告)日：2016-03-10

申请号：US14845230

申请日：2015-09-03

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/044 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0039 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0094 ,  H04L27/2601 ,  H04W72/00 ,  H04W84/12

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a wireless device. The wireless device determines a first subset of resource units (RUs) of a set of RUs that extends across a bandwidth of a channel in a transmission time period, the first subset of RUs including less RUs than the set of RUs, each RU of the set of RUs including at least 26 tones. The wireless device communicates at least one of data or control information in the first subset of the RUs.

Abstract translation: 在本公开的一方面，提供了一种方法，计算机可读介质和装置。 该装置可以是无线装置。 无线设备确定在传输时间段内跨越信道的带宽延伸的一组RU的资源单元（RU）的第一子集，所述RU的第一子集包括比所述RU的集合少的RU，每个RU 一组RU包括至少26个音调。 无线设备在RU的第一子集中传送数据或控制信息中的至少一个。

公开(公告)号：US20150264161A1

公开(公告)日：2015-09-17

申请号：US14645044

申请日：2015-03-11

Applicant: QUALCOMM Incorporated

Inventor： Bin TIAN ,  Sameer VERMANI ,  Albert VAN ZELST ,  Didier Johannes Richard Van Nee

IPC: H04L29/06 ,  H04L27/26 ,  H04L1/00

CPC classification number: H04L69/22 ,  H04L1/0009 ,  H04L1/0086 ,  H04L1/1854 ,  H04L1/1864 ,  H04L27/2607 ,  H04W84/12

Abstract: Aspects of the present disclosure relate to techniques for generating responses to extended length frames having increased symbol lengths without changing the short interframe space duration. According to certain aspects, a method for transmitting an extended length frame generally includes generating a packet having a preamble decodable by a first type of device having a first set of capabilities and a second type of device having a second set of capabilities, wherein at least a first portion of the packet is generated using an increased symbol duration or increased cyclic prefix relative to a second portion of the packet generated using a standard symbol duration or standard cyclic prefix and the packet includes padding symbols after the first portion, and outputting the generated packet for transmission.

Abstract translation: 本公开的方面涉及用于对具有增加的符号长度的扩展长度帧产生响应的技术，而不改变短的帧间间隔持续时间。 根据某些方面，用于发送扩展长度帧的方法通常包括生成具有可由具有第一组能力的第一类型的设备解码的前同步码的分组和具有第二组能力的第二类型的设备，其中至少 使用相对于使用标准符号持续时间或标准循环前缀生成的分组的第二部分的增加的符号持续时间或增加的循环前缀生成分组的第一部分，并且分组包括在第一部分之后的填充符号，并且输出生成的 分组传输。

公开(公告)号：US20150071215A1

公开(公告)日：2015-03-12

申请号：US14466031

申请日：2014-08-22

Applicant: QUALCOMM Incorporated

Inventor： Bin TIAN ,  Eugene Jong-Hyon BAIK ,  Sameer VERMANI ,  Tao TIAN

IPC: H04W24/08

CPC classification number: H04W24/08 ,  H04L5/001 ,  H04L27/0006 ,  H04W52/0216 ,  H04W52/0229 ,  H04W74/0825 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/164

Abstract: 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.

Abstract translation: 本公开的某些方面提供了用于基于中间包检测来检测正在进行的传输和评估信道状态的方法和装置。 一个示例性方法通常包括在主要信道上接收信号; 基于所接收的信号，检测主信道上的第一进行中分组传输的发生或不发生; 以及基于所述检测生成忙信号或空闲信号中的至少一个。 以这种方式，可以避免冲突。

公开(公告)号：US20240214996A1

公开(公告)日：2024-06-27

申请号：US18428834

申请日：2024-01-31

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay SHELLHAMMER ,  Sameer VERMANI ,  Jialing Li CHEN ,  Bin TIAN ,  Alfred ASTERJADHI ,  Yanjun SUN

IPC: H04W72/044 ,  H04L69/22 ,  H04W72/51 ,  H04W84/12

CPC classification number: H04W72/044 ,  H04L69/22 ,  H04W72/51 ,  H04W84/12

Abstract: This disclosure provides methods, devices and systems for generating enhanced trigger frames. Some implementations more specifically relate to trigger frame designs that support gains in data throughput achievable in accordance with the IEEE 802.11be amendment, and future generations, of the IEEE 802.11 standard. In some implementations, an enhanced trigger frame may be used to solicit a non-legacy trigger-based (TB) physical layer protocol convergence protocol (PLCP) protocol data unit (PPDU) from one or more wireless stations (STAs). In some implementations, the enhanced trigger frame may be configurable to support multiple versions of the IEEE 802.11 standard. For example, an enhanced trigger frame may be configured in accordance with a legacy trigger frame format or a non-legacy trigger frame format. Thus, when configured in accordance with the legacy trigger frame format, the enhanced trigger frame can also be used to a legacy TB PPDU from one or more STAs.

公开(公告)号：US20240080690A1

公开(公告)日：2024-03-07

申请号：US18465804

申请日：2023-09-12

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN ,  Stephen Jay SHELLHAMMER ,  Dung Ngoc DOAN ,  Sameer VERMANI ,  Jialing Li CHEN

IPC: H04W24/08 ,  H04L27/26

CPC classification number: H04W24/08 ,  H04L27/2627 ,  H04W84/12

Abstract: This disclosure provides methods, devices and systems for link adaptation in wireless communications. Some implementations more specifically relate to transmitter-based modulation and coding scheme (MCS) selection. A transmitting device transmits a test packet, over a wireless channel, to a receiving device. The receiving device generates one or more signal-to-interference-plus-noise ratio (SINR) estimates for the wireless channel based on the received sounding packet. In some aspects, each SINR estimate may be associated with a particular modulation order. In some other aspects, each SINR estimate may be generated based on a transmitter configuration or a receiver type to be used for subsequent communications between the transmitting device and the receiving device. The receiving device transmits feedback, including the SINR estimates, to the transmitting device. The transmitting device then selects an MCS to be used for subsequent communications with the receiving device based on the SINR estimates and associated modulation orders.

公开(公告)号：US20240022286A1

公开(公告)日：2024-01-18

申请号：US18448010

申请日：2023-08-10

Applicant: QUALCOMM Incorporated

Inventor： Sameer VERMANI ,  Bin TIAN

IPC: H04B7/024 ,  H04L5/00 ,  H04B7/0452 ,  H04W72/044 ,  H04B7/0417 ,  H04W84/12 ,  H04W72/29

CPC classification number: H04B7/024 ,  H04L5/0035 ,  H04B7/0452 ,  H04L5/0044 ,  H04L5/0091 ,  H04W72/046 ,  H04B7/0417 ,  H04W84/12 ,  H04W72/29 ,  H04B7/0617

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for group formation and sounding for distributed multi-user multiple input multiple output (MU-MIMO). Some implementations include a method of wireless communication. The method includes transmitting, from a first access point of a plurality of access points, an announcement frame for performing a beamforming procedure for a distributed transmission. The distributed transmission includes a transmission from the plurality of access points. The announcement frame includes at least one identifier of a user terminal in a different basic service set than a basic service set of the first access point. The method further includes transmitting a packet for measuring a channel. The method further includes receiving feedback information from the user terminal based on the packet for measuring the channel. The method further includes transmitting the distributed transmission using the beamforming procedure.

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：US20210152396A1

公开(公告)日：2021-05-20

申请号：US17077641

申请日：2020-10-22

Applicant: QUALCOMM Incorporated

Inventor： George CHERIAN ,  Lochan VERMA ,  Alfred ASTERJADHI ,  Sameer VERMANI

IPC: H04L25/02 ,  H04B7/0452 ,  H04W48/16

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for group formation and sounding for distributed multi-user multiple input multiple output (MU-MIMO). Some implementations include a method of wireless communication. The method includes a sounding preparation phase that includes transmitting, to the plurality of access points, a first frame inviting the plurality of access points to perform a beamformed distributed transmission from the plurality of access points to a group of stations; receiving a second frame from at least one of the plurality of access points based on transmitting the first frame, the second frame including at least one identifier of at least one station in a different basic service set than a basic service set of the first access point; and identifying the group of stations based on the at least one identifier included in the second frame.

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：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.