公开(公告)号：US20240236880A1

公开(公告)日：2024-07-11

申请号：US18388928

申请日：2023-11-13

Applicant: Qualcomm Incorporated

Inventor： Abhishek Pramod Patil ,  Yongchun Xiao ,  Ravi Gidvani ,  Sandip HomChaudhuri ,  Pradeep Kumar Yenganti ,  Arul Davidson Emmanuel ,  James Simon Cho ,  Padmanabhan Venkataraman Karthic ,  George Cherian ,  Alfred Asterjadhi ,  Jouni Kalevi Malinen

IPC: H04W56/00 ,  H04L5/00 ,  H04W84/12

CPC classification number: H04W56/0005 ,  H04L5/0096 ,  H04W56/0015 ,  H04W84/12

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for analyzing management frames for multiple basic service sets (BSSs). In one aspect, a wireless node may obtain a first management frame from a wireless local area network (WLAN) apparatus, the WLAN apparatus operating multiple virtual access points (VAPs) respectively corresponding to multiple BSSs. The wireless node may determine whether the first management frame includes a BSS profile of a BSS associated with the wireless node based, at least in part, on an arrangement of a plurality of BSS profiles within one or more management frames. The wireless node may determine to further process the first management frame based, at least in part, on a determination that the first management frame includes the BSS profile of the BSS associated with the wireless node.

公开(公告)号：US20210345418A1

公开(公告)日：2021-11-04

申请号：US17375925

申请日：2021-07-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W74/00

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：US11121822B2

公开(公告)日：2021-09-14

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 ,  H04W84/12

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：US09894679B2

公开(公告)日：2018-02-13

申请号：US15074552

申请日：2016-03-18

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Chao Zou ,  Srinivas Katar ,  Hao Zhu ,  James Simon Cho ,  Alireza Raissinia

IPC: H04W72/12 ,  H04W74/08

CPC classification number: H04W72/1263 ,  H04W72/1252 ,  H04W74/08 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may win access to an unlicensed frequency channel for a transmission opportunity. For the transmission opportunity, the AP may dynamically schedule a duration of time to be used for uplink transmissions and a duration of time to be used for downlink transmissions. The schedule may be based on a comparison of values for a parameter monitored by the AP. The parameter may be monitored for uplink traffic and for downlink traffic. The parameter may indicate the latency experienced by each direction of traffic, or an intolerance of each direction of traffic to delay. The AP may schedule the uplink and downlink durations to compensate for the discrepancy in latency between the two directions of traffic.

公开(公告)号：US09749874B2

公开(公告)日：2017-08-29

申请号：US13943872

申请日：2013-07-17

Applicant: QUALCOMM Incorporated

Inventor： Shu Du ,  Ning Zhang ,  Zhen Xie ,  James Simon Cho ,  Chin-Hung Chen ,  Kai Shi

IPC: H04W16/26 ,  H04W76/02 ,  H04L12/725 ,  H04L12/851 ,  H04W28/02 ,  H04W88/10 ,  H04W84/04 ,  H04W84/12

CPC classification number: H04W16/26 ,  H04L45/304 ,  H04L47/24 ,  H04W28/0205 ,  H04W76/15 ,  H04W84/047 ,  H04W84/12 ,  H04W88/10

Abstract: Methods, systems, devices, and apparatuses are described for wireless communications in which first type of traffic may be transmitted from a gateway access point (AP) directly to a station. Beacon signals transmitted to the station are transmitted as part of the first type of traffic. A second type of traffic may be transmitted from the gateway AP to the station via at least one relay AP. The first type of traffic may include low-throughput traffic and may be transmitted over a long-range radio link (e.g., 2 GHz band link or sub-1 GHz band link). The second type of traffic may include high-throughput traffic and may be transmitted over at least one short-range radio link (e.g., 5 GHz band link). The gateway AP may receive low-throughput traffic directly from the station and high-throughput traffic from the station via the at least one relay AP.

公开(公告)号：US20170134989A1

公开(公告)日：2017-05-11

申请号：US14936087

申请日：2015-11-09

Applicant: QUALCOMM Incorporated

Inventor： Olaf Josef Hirsch ,  James Simon Cho ,  Ning Zhang ,  Alireza Raissinia ,  Youhan Kim ,  Kapil Rai

IPC: H04W28/26 ,  H04W74/08

CPC classification number: H04W28/26 ,  H04W74/08 ,  H04W74/0816

Abstract: Methods, systems, and devices are described for supporting simultaneous (e.g., overlapping) data communications by a wireless communication device. More specifically, the described features generally relate to supporting SBS communications by providing mechanisms to help mitigate interference and/or coordinate medium access. One mechanism involves aligning the data communications to mitigate interference. Another mechanism involves using channel reservation signal (e.g., a clear-to-send-to-self (CTS2S) signal) to help maintain simultaneous medium access. Yet another mechanism involves setting a second backoff period for a second channel based at least in part on a first backoff period for a first channel in wireless devices.

公开(公告)号：US09578543B2

公开(公告)日：2017-02-21

申请号：US14289535

申请日：2014-05-28

Applicant: QUALCOMM Incorporated

Inventor： James Simon Cho ,  Kevin Neal Hayes

IPC: H04W28/06 ,  H04W12/02

CPC classification number: H04W28/06 ,  H04W12/02

Abstract: Overhead associated with packet communication is reduced by combining or eliminating one or more fields of a packet. In some implementations, a reduction in overhead associated with packets employing security (e.g., IEEE 802.11ah packets) can be achieved by reducing overhead associated with verification-related fields. For example, a packet can include a merged frame check sequence (FCS) and an integrity check value (ICV). In some implementations, an FCS is omitted from a packet.

Abstract translation: 通过组合或消除分组的一个或多个字段来减少与分组通信相关联的开销。 在一些实现中，可以通过减少与验证相关字段相关联的开销来实现与使用安全性的分组（例如，IEEE 802.11ah分组）相关联的开销的减少。 例如，分组可以包括合并的帧校验序列（FCS）和完整性校验值（ICV）。 在一些实现中，从分组中省略FCS。

公开(公告)号：US09560594B2

公开(公告)日：2017-01-31

申请号：US14277623

申请日：2014-05-14

Applicant: QUALCOMM Incorporated

Inventor： James Simon Cho ,  Arunkumar Jayaraman ,  Guido Robert Frederiks ,  Zhanfeng Jia ,  Shu Du ,  Alireza Raissinia ,  Jibing Wang ,  Sandip Homchaudhuri

IPC: H04W52/02 ,  H04W72/02 ,  H04L1/08 ,  H04W84/12

CPC classification number: H04W52/0238 ,  H04L1/08 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0235 ,  H04W72/02 ,  H04W84/12 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

Abstract: Methods, systems, and devices are described for power conservation in a wireless communications system through efficient transmissions and acknowledgements of information between an AP and a station. The time between a determination by a station to enter a power saving mode and entering network sleep mode by the station may be reduced through a transmission, by an AP, of an MPDU to the station successive to an SIFS after transmission of an acknowledgement to the station of a PS-Poll frame from the station. The time to enter a power saving mode by a station may also be reduced through transmission of A-MPDUs in which a last MPDU of the A-MPDU has an indicator bit cleared to indicate no additional data is to be transmitted. An AP may prevent a retransmission of an MPDU to the station in the absence of an acknowledgement from the station, to further enhance efficiency.

Abstract translation: 描述了无线通信系统中的功率节省的方法，系统和设备，通过AP和站之间的有效传输和信息确认。 在站点确定进入节电模式并进入网络睡眠模式之间的时间可以通过AP向MPI发送确认之后的MPDU向连续的SIFS的站传输而减少 站点的PS-Poll帧。 由站点进入省电模式的时间也可以通过A-MPDU的传输来减少，其中A-MPDU的最后一个MPDU被清除以指示不发送附加数据。 在没有来自站的确认的情况下，AP可以阻止对站的MPDU的重传，以进一步提高效率。

公开(公告)号：US20160330640A1

公开(公告)日：2016-11-10

申请号：US15216574

申请日：2016-07-21

Applicant: QUALCOMM Incorporated

Inventor： Kai Shi ,  James Simon Cho ,  Ning Zhang

IPC: H04W24/08 ,  H04W40/24 ,  H04L29/06

CPC classification number: H04W24/08 ,  H04L69/22 ,  H04W24/10 ,  H04W40/244 ,  H04W48/16 ,  H04W84/12

Abstract: Systems and methods are provided for preferentially locating a candidate channel likely to have an active network during a WLAN scanning process. A portion of a first incoming packet on a first wireless channel is received and analyzed to determine whether an active network is available on the first wireless channel. The reception of the first incoming packet is selectively aborted based at least in part on the analysis. The portion of the first incoming packet may be a header of the first incoming packet. The reception of the first incoming packet may be aborted in response to a trigger condition. The trigger condition may correspond to a determination that the first incoming packet is not a packet of interest, a determination that the first incoming packet is not a beacon, or a determination that a signal strength on the first incoming packet is below a threshold level.

Abstract translation: 提供了系统和方法，用于在WLAN扫描过程期间优先地定位可能具有活动网络的候选信道。 接收并分析第一无线信道上的第一输入分组的一部分以确定在第一无线信道上活动网络是否可用。 至少部分地基于分析，选择性地中止第一输入分组的接收。 第一输入分组的部分可以是第一输入分组的报头。 响应于触发条件可以中止第一传入分组的接收。 触发条件可以对应于第一输入分组不是感兴趣的分组，确定第一输入分组不是信标的确定，或者确定第一输入分组上的信号强度低于阈值水平。

公开(公告)号：US20160142176A1

公开(公告)日：2016-05-19

申请号：US14542461

申请日：2014-11-14

Applicant: QUALCOMM INCORPORATED

Inventor： Qinghai Gao ,  Xialong Huang ,  Vincent Knowles Jones, IV ,  Srinivas Katar ,  James Simon Cho

IPC: H04L1/00 ,  H04L1/16 ,  H04L12/26 ,  H04W24/08

CPC classification number: H04L1/0003 ,  H04L1/0001 ,  H04L1/0005 ,  H04L1/1621 ,  H04L43/0847 ,  H04W24/08

Abstract: Methods, apparatus, and computer-readable media for wireless communication by an access point (AP) may involve communicating with a station using a first modulation and coding scheme (MCS). An under-utilization of a medium access control (MAC) protocol data unit (MPDU) aggregation of the station while using the first MCS may be identified. The under-utilization may be caused by packet error rate (PER)-induced head of line (HOL) blocking. The MCS may be switched to a second MCS that is lower than the first MCS.

Abstract translation: 用于由接入点（AP）进行无线通信的方法，装置和计算机可读介质可以涉及使用第一调制和编码方案（MCS）与站通信。 可以识别在使用第一MCS时站的媒体访问控制（MAC）协议数据单元（MPDU）聚合的不充分利用。 利用不足可能是由分组错误率（PER）引起的线路头（HOL）阻塞引起的。 MCS可以切换到低于第一MCS的第二MCS。