公开(公告)号：US08942201B1

公开(公告)日：2015-01-27

申请号：US14227874

申请日：2014-03-27

Applicant: QUALCOMM Incorporated

Inventor： Srinivasa Kumar Duvvuri ,  Sandip HomChaudhuri ,  BadriSrinivasan Sampathkumar ,  Arunkumar Jayaraman ,  Ashish Kumar Shukla ,  Rajkumar Rajkumar Samuel ,  James Simon Cho

IPC: H04W72/02 ,  H04W28/04

CPC classification number: H04W74/085 ,  H04W56/00 ,  H04W72/02 ,  H04W72/12 ,  H04W74/00 ,  H04W84/18

Abstract: A method and apparatus are disclosed for increasing the speed with which a number of stations associated with an IBSS network may be synchronized and/or for reducing the number of beacon frame collisions in the IBSS network. For at least some embodiments, the synchronization speed may be increased by allowing STAs having faster clock speeds to broadcast beacon frames more frequently than STAs having slower clock speeds.

Abstract translation: 公开了一种用于增加与IBSS网络相关联的多个站可以同步的速度和/或用于减少IBSS网络中的信标帧冲突的数量的方法和装置。 对于至少一些实施例，可以通过允许具有更快时钟速度的STA与具有较慢时钟速度的STA相比更频繁地广播信标帧来增加同步速度。

公开(公告)号：US11509419B2

公开(公告)日：2022-11-22

申请号：US17030034

申请日：2020-09-23

Applicant: QUALCOMM Incorporated

Inventor： James Simon Cho ,  Youhan Kim ,  Tao-Fei Samuel Ng ,  Vincent Knowles Jones, IV

IPC: H04W4/00 ,  H04L1/00 ,  H03M13/29 ,  H03M13/37 ,  H04L5/00

Abstract: This disclosure provides methods, devices and systems for acknowledgement and retransmission, and more specifically, to methods, devices and systems that enable a secondary wireless channel to provide acknowledgements of data transmitted on a primary wireless channel concurrently with the reception of additional data on the primary wireless channel. In some implementations, a transmitting device may transmit wireless packets including multiple codewords to a receiving device via a first wireless channel. The receiving device may attempt to decode the received codewords based on primary information in the codewords. The receiving device may then transmit to the transmitting device, via a second wireless channel, a codeword acknowledgement that identifies codewords that the receiving device did not successfully decode. The transmitting device may then transmit parity information to the receiving device via the first wireless channel that aids the receiving device in decoding the identified codewords.

公开(公告)号：US20210135792A1

公开(公告)日：2021-05-06

申请号：US16668769

申请日：2019-10-30

Applicant: QUALCOMM Incorporated

Inventor： James Simon Cho ,  Tao-Fei Samuel Ng ,  Youhan Kim ,  Bin Tian ,  Jialing Li Chen ,  Stephen Jay Shellhammer ,  Vincent Knowles Jones, IV

IPC: H04L1/18

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for implementing a hybrid automatic repeat request (HARQ) protocol in a wireless local area network (WLAN). A first WLAN device may generate a first HARQ packet for transmission to a second WLAN device. The first WLAN device may determine a first basic service set (BSS) indicator and a second BSS indicator for a BSS associated with the first WLAN device and the second WLAN device. The first BSS indicator and the second BSS indicator may be indicative of a BSS identifier (BSSID) of the BSS. The first WLAN device may output the first HARQ packet for transmission to the second WLAN device. The first HARQ packet may include the first BSS indicator and the second BSS indicator in one or more fields of a physical layer (PHY) header of the first HARQ packet.

公开(公告)号：US20190007977A1

公开(公告)日：2019-01-03

申请号：US16106705

申请日：2018-08-21

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  James Simon Cho ,  George Cherian ,  Simone Merlin ,  Abhishek Pramod Patil

IPC: H04W74/08

Abstract: An access point (AP) may prioritize the allocation of uplink resources between multiple basic service sets (BSSs). In some aspects, the AP may select one of a plurality of BSSs, may allocate one or more random-access resource units (RUs) to only the selected BSS, and may transmit, for each of the selected BSSs, a respective frame indicating the random-access RUs allocated to that BSS. Wireless devices belonging to the selected BSS may contend for access to the random-access RUs allocated by the frame, and then transmit uplink data using the random-access RUs.

公开(公告)号：US10075964B2

公开(公告)日：2018-09-11

申请号：US15249344

申请日：2016-08-26

Applicant: QUALCOMM Incorporated

Inventor： Sandip HomChaudhuri ,  Gangadhar Burra ,  Eric Y. Tsou ,  Chintan Shirish Shah ,  Francis Ming-Meng Ngai ,  Alexei Yurievitch Gorokhov ,  Pattabiraman Subramanian ,  Ning Zhang ,  James Simon Cho

IPC: H04W72/08 ,  H04B7/0413 ,  H04W24/08 ,  H04W28/02 ,  H04W72/04 ,  H04B7/06 ,  H04W16/14

CPC classification number: H04W72/085 ,  H04B7/0413 ,  H04B7/0602 ,  H04B7/063 ,  H04B7/0691 ,  H04W16/14 ,  H04W24/08 ,  H04W28/0289 ,  H04W72/042 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may be communicating on a radio frequency spectrum band of a first radio access technology (RAT) using a set of antennas. The UE may reconfigure at least one antenna of the set of antennas to perform a first scan on the radio frequency spectrum band of a second RAT. The UE may determine, based on the first scan, whether to reconfigure a remaining portion of the antennas of the set of antennas to perform a second scan on the radio frequency spectrum band of the second RAT.

公开(公告)号：US20180103487A1

公开(公告)日：2018-04-12

申请号：US15730709

申请日：2017-10-11

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Abhishek Pramod Patil ,  Alireza Raissinia ,  Ravi Gidvani ,  James Simon Cho

IPC: H04W74/00 ,  H04W24/02

CPC classification number: H04W74/002 ,  H04W24/02 ,  H04W74/02 ,  H04W84/12 ,  H04W92/18

Abstract: A wireless device (e.g., a station (STA)) may receive a transmission soliciting a control transmission (e.g., a soliciting transmission). The STA may identify a transmission parameter indicator, which may indicate a change in one or more parameters in a control response transmission parameter set (e.g., a set of parameters used for control transmissions in response to the soliciting transmission). The STA may transmit the control transmission in response to the soliciting transmission based on the identified transmission parameter indicator. The control response transmission parameter set may include a frame format, a physical layer convergence protocol (PLCP) protocol data unit (PPDU) format, a bandwidth, a modulation scheme, an encoding scheme, a modulation and coding scheme (MCS), a number of spatial streams (NSS), and/or a PPDU duration. In some cases, the transmission parameter indicator may indicate disabling or resumption of extended range (ER) single user (SU) PPDU format usage.

公开(公告)号：US09854533B2

公开(公告)日：2017-12-26

申请号：US14588444

申请日：2015-01-01

Applicant: QUALCOMM Incorporated

Inventor： James Simon Cho ,  Shiwei Zhao

IPC: G08C17/00 ,  H04W52/18 ,  H04W28/22 ,  H04L1/16 ,  H04L12/801 ,  H04L12/835 ,  H04L12/26 ,  H04W52/38 ,  H04L1/18 ,  H04W84/12 ,  H04W28/02

CPC classification number: H04W52/18 ,  H04L1/1671 ,  H04L1/1874 ,  H04L43/065 ,  H04L47/14 ,  H04L47/30 ,  H04W28/02 ,  H04W28/22 ,  H04W52/38 ,  H04W84/12

Abstract: System and method for improving channel efficiency in a wireless link between an access-point transceiver and a first transceiver. The first transceiver may have a first data throughput rate that is lower than the maximum possible data throughput rate of the wireless link. The first transceiver may include a first receive buffer. An indication of the first data throughput rate and a size of the first receive buffer may be received and stored by the access-point transceiver. A first size of a first data packet for transmission to the first transceiver may be determined by the access-point transceiver based on one or more of the first data throughput rate and/or the size of the first receive buffer. The first data packet of the first size may be transmitted to the first transceiver by the access-point transceiver at a data rate that is higher than the first data throughput rate.

公开(公告)号：US20160345270A1

公开(公告)日：2016-11-24

申请号：US14715230

申请日：2015-05-18

Applicant: QUALCOMM Incorporated

Inventor： Sandip HomChaudhuri ,  Sumeet Kumar ,  James Simon Cho

IPC: H04W52/08 ,  H04L5/00 ,  H04L29/06

CPC classification number: H04W52/08 ,  H04L1/0001 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1671 ,  H04L5/0055 ,  H04L69/22 ,  H04W52/362 ,  H04W52/54

Abstract: Methods and apparatuses for providing closed-loop power control during a short inter-frame space (SIFS) burst are described herein. A method includes receiving feedback associated with transmit power used to transmit a first data packet in a SIFS burst. The method also includes adjusting at least the transmit power, or a modulation and coding scheme (MCS), or a combination thereof, used to transmit a second data packet of the SIFS burst based at least in part on the received feedback.

Abstract translation: 本文描述了在短帧间空间（SIFS）突发期间提供闭环功率控制的方法和装置。 一种方法包括接收与用于在SIFS突发中发送第一数据分组的发射功率相关联的反馈。 该方法还包括至少部分地基于所接收的反馈来调整至少用于发送SIFS突发的第二数据分组的发射功率或调制和编码方案（MCS）或其组合。

公开(公告)号：US20160330759A1

公开(公告)日：2016-11-10

申请号：US14706307

申请日：2015-05-07

Applicant: QUALCOMM Incorporated

Inventor： Olaf Josef Hirsch ,  James Simon Cho ,  Simone Merlin ,  Youhan Kim ,  Guido Robert Frederiks ,  Jibing Wang

IPC: H04W72/12 ,  H04L29/06 ,  H04L12/743 ,  H04W74/08

CPC classification number: H04W72/1278 ,  H04L45/7453 ,  H04L69/22 ,  H04W72/1215 ,  H04W72/1236 ,  H04W74/0816 ,  H04W84/12

Abstract: Methods, systems, and devices are described for wireless communication. A wireless device may identify an upcoming interference period, determine a receive end time based on when the interference period will begin to disrupt incoming messages, and transmit a scheduling outlook message to a transmitter to schedule around the interference in response to receiving a packet (request-to-send (RTS) or data). The wireless device may hash a receiver address (RA) associated with the packet exchange message such as a clear-to-send message or a block acknowledgement to make room for the scheduling outlook message. An example scheduling outlook field (in the place of the full RA field) may include a shortened RA, a number of supported spatial streams, a supported bandwidth, a set of tone allocation units (TAUs), a receive end time (or receive duration), and an interference level.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 无线设备可以识别即将到来的干扰周期，基于干扰周期何时开始中断输入消息来确定接收结束时间，并且响应于接收到分组（请求）向发射机发送调度外观消息以调度干扰 发送（RTS）或数据）。 无线设备可以将与分组交换消息相关联的接收器地址（RA）哈希，例如清除发送消息或块确认，以为调度前景消息腾出空间。 示例性调度展望字段（在整个RA字段的地方）可以包括缩短的RA，支持的空间流的数量，支持的带宽，一组音调分配单元（TAU），接收结束时间（或接收持续时间 ）和干扰电平。

公开(公告)号：US09426694B2

公开(公告)日：2016-08-23

申请号：US14519061

申请日：2014-10-20

Applicant: QUALCOMM Incorporated

Inventor： James Simon Cho

IPC: H04L12/28 ,  H04W28/06 ,  H04W80/00 ,  H04W84/12

CPC classification number: H04W28/065 ,  H04W28/06 ,  H04W80/00 ,  H04W84/12

Abstract: Embodiments of the present invention provide for content optimization of a physical layer preamble. In one embodiment of the invention, a method for encapsulating a payload for transmission through a network is disclosed. The method comprises the step of programming a legacy physical layer length value in a legacy physical layer preamble. The legacy physical layer preamble is configured such that it can be received by any legacy stations that may be on the network, and such that a separate physical layer length value can be derived from the legacy physical layer preamble. Using such a system, content optimization of a physical layer preamble is provided.

Abstract translation: 本发明的实施例提供了物理层前导码的内容优化。 在本发明的一个实施例中，公开了一种用于封装通过网络进行传输的净荷的方法。 该方法包括在传统物理层前同步码中编程传统物理层长度值的步骤。 传统物理层前导码被配置为使得其可以由可能在网络上的任何传统站点接收，并且使得可以从传统物理层前导码导出单独的物理层长度值。 使用这样的系统，提供物理层前导码的内容优化。