公开(公告)号：US20230140312A1

公开(公告)日：2023-05-04

申请号：US17516375

申请日：2021-11-01

Applicant: QUALCOMM Incorporated

Inventor： Abdel Karim Ajami ,  Sai Yiu Duncan Ho ,  George Cherian ,  Alfred Asterjadhi ,  Abhishek Pramod Patil ,  Yanjun Sun ,  Gaurang Naik

IPC: H04W74/04 ,  H04W74/08 ,  H04W72/04

Abstract: This disclosure provides methods, devices and systems for protecting latency-sensitive communications during restricted target wake time (r-TWT) service periods (SPs). Some implementations more specifically relate to coordinated scheduling of r-TWT SPs between OBSSs. In some aspects, a first AP may coordinate with a second AP in scheduling r-TWT SPs so that latency-sensitive traffic in a first BSS does not interfere or collide with latency-sensitive traffic in a second BSS overlapping the first BSS. In some implementations, the first and second APs may schedule their respective r-TWT SPs to be orthogonal in time. In some other implementations, the first and second APs may schedule their r-TWT SPs to overlap in time, while allocating coordinated resources to concurrent or overlapping latency-sensitive traffic in the first and second BSSs (such as in accordance with one or more multi-AP coordination techniques).

公开(公告)号：US20230079928A1

公开(公告)日：2023-03-16

申请号：US18049587

申请日：2022-10-25

Applicant: QUALCOMM Incorporated

Inventor： Bin Tian ,  Stephen Jay Shellhammer ,  Yanjun Sun ,  Alfred Asterjadhi

IPC: H04L5/00 ,  H04W72/04 ,  H04W28/06

Abstract: This disclosure provides methods, devices and systems for soliciting trigger-based (TB) physical layer protocol convergence protocol (PLCP) protocol data units (PPDUs). Some implementations more specifically relate to trigger frame designs that support non-legacy TB PPDU formats. In some aspects, a trigger frame may carry information to be included in a physical layer (PHY) preamble of a TB PPDU solicited by the trigger frame. For example, the information may indicate values of one or more subfields of a universal signal field (U-SIG) associated with the non-legacy TB PPDU format. In some aspects, the information may be carried in a special user information field of the trigger frame. For example, the special user information field may be identified by a special association identifier (AID) value. The special AID value may be different than any AID values assigned to wireless communication devices in a basic service set (BSS) associated with the TB PPDU.

公开(公告)号：US11528093B1

公开(公告)日：2022-12-13

申请号：US17328464

申请日：2021-05-24

Applicant: QUALCOMM Incorporated

Inventor： Yanjun Sun ,  Bin Tian ,  Alfred Asterjadhi ,  George Cherian ,  Youhan Kim

IPC: H04L1/00 ,  H04L1/16 ,  H04W76/30

Abstract: This disclosure provides systems, methods, and apparatuses for wireless communication that can be used for channel puncturing. A wireless station (STA) may receive an indication of a first puncturing pattern to be used for transmitting or receiving data over a wireless channel, where the first puncturing pattern is defined by a first wireless communication protocol release and the STA is configured to operate according to a second wireless communication protocol release. The STA may select, from a set of puncturing patterns defined by the second wireless communication protocol release, a second puncturing pattern that includes one or more non-punctured subchannels that are subsets of one or more corresponding non-punctured subchannels of the first puncturing pattern. The STA may use the second puncturing pattern to transmit or receive one or more packets over the wireless channel.

公开(公告)号：US10660038B2

公开(公告)日：2020-05-19

申请号：US16022586

申请日：2018-06-28

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Yanjun Sun ,  Santosh Paul Abraham ,  Bin Tian

IPC: H04W52/02 ,  H04W52/54 ,  H04W12/10 ,  H04W84/12

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for generating wake-up radio (WUR) frames formats and implementing WUR communications between transmitting and receiving wireless devices. A transmitting wireless device may identify one or more intended receiving wireless devices for which to send a WUR frame. The transmitting wireless device may generate the WUR frame, where the WUR frame has a first portion that includes a first field. The first field may indicate whether the WUR frame is a fixed length frame or a variable length frame. The transmitting wireless device may also determine a frame check sequence (FCS) type for use with a WUR frame for transmission. The FCS portion may be capable of being one of a plurality of FCS types. The transmitting wireless device may transmit the WUR frame to the one or more intended receiving wireless devices.

公开(公告)号：US20190007904A1

公开(公告)日：2019-01-03

申请号：US16022676

申请日：2018-06-28

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Yanjun Sun ,  Santosh Paul Abraham ,  Bin Tian

IPC: H04W52/02 ,  H04W52/54

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for generating wake-up radio (WUR) frames formats and implementing WUR communications between transmitting and receiving wireless devices. A transmitting wireless device may identify one or more intended receiving wireless devices for which to send a WUR frame. The transmitting wireless device may generate the WUR frame, where the WUR frame has a first portion that includes a first field. The first field may indicate whether the WUR frame is a fixed length frame or a variable length frame. The transmitting wireless device may also determine a frame check sequence (FCS) type for use with a WUR frame for transmission. The FCS portion may be capable of being one of a plurality of FCS types. The transmitting wireless device may transmit the WUR frame to the one or more intended receiving wireless devices.

公开(公告)号：US20190007901A1

公开(公告)日：2019-01-03

申请号：US16022586

申请日：2018-06-28

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Yanjun Sun ,  Santosh Paul Abraham ,  Bin Tian

IPC: H04W52/02

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for generating wake-up radio (WUR) frames formats and implementing WUR communications between transmitting and receiving wireless devices. A transmitting wireless device may identify one or more intended receiving wireless devices for which to send a WUR frame. The transmitting wireless device may generate the WUR frame, where the WUR frame has a first portion that includes a first field. The first field may indicate whether the WUR frame is a fixed length frame or a variable length frame. The transmitting wireless device may also determine a frame check sequence (FCS) type for use with a WUR frame for transmission. The FCS portion may be capable of being one of a plurality of FCS types. The transmitting wireless device may transmit the WUR frame to the one or more intended receiving wireless devices.

公开(公告)号：US10091682B2

公开(公告)日：2018-10-02

申请号：US15218730

申请日：2016-07-25

Applicant: QUALCOMM Incorporated

Inventor： Yanjun Sun ,  Peerapol Tinnakornsrisuphap ,  Brian Michael Buesker ,  Saiyiu Duncan Ho ,  Bharat Bhushan Chakravarty

IPC: H04W84/12 ,  H04W28/02 ,  H04L12/823 ,  H04L29/12 ,  H04L29/06 ,  H04W36/22 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communication are described. Methods, systems, and devices provide for determining or identifying a client device that is monopolizing a channel associated with a first basic service set (BSS). Once identified, a second BSS is dynamically created and configured with parameters that are throttled with respect to the first BSS. The client device is steered to the second BSS and is prevented from reassociating with the first BSS until a change in device status.

公开(公告)号：US10050735B2

公开(公告)日：2018-08-14

申请号：US14987588

申请日：2016-01-04

Applicant: QUALCOMM Incorporated

Inventor： Yanjun Sun ,  Rahul Malik ,  Peerapol Tinnakornsrisuphap ,  Menucher Behram Menuchehry ,  Olaf Josef Hirsch ,  Eric Yuchuen Tsou

IPC: H04W28/04 ,  H04J11/00 ,  H04W84/12

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, an apparatus is configured to identify interference information associated with at least one traffic stream. The apparatus is further configured to transmit a message to an access point. The message includes a stream ID associated with the interference information and with the at least one traffic stream. The message includes the interference information, and the interference information includes an offset value and an interval/duration value.

公开(公告)号：US20160295538A1

公开(公告)日：2016-10-06

申请号：US14678620

申请日：2015-04-03

Applicant: QUALCOMM Incorporated

Inventor： Yanjun Sun ,  Rahul Malik ,  Peerapol Tinnakornsrisuphap

IPC: H04W56/00 ,  H04W72/12

CPC classification number: H04W56/0045 ,  H04L1/00 ,  H04L1/1854 ,  H04W56/003 ,  H04W72/12 ,  H04W72/1231 ,  H04W84/12 ,  H04W88/06

Abstract: Methods, systems, and devices are described for dealing with mutual clock drifts for communications over multiple RATs by maintaining a guard interval. A guard interval is a time interval during which no transmissions should occur. For example, the guard interval may be set relative to a scheduled interference interval of a STA so that transmissions to the STA from an AP will not collide with different RAT (e.g., interference) transmissions/receptions even with clock drift (e.g., a guard interval at both sides of the scheduled interference interval). Such an approach may allow the clocks to be re-synchronized (e.g., by the STA notifying the AP of the schedule of interference interval) infrequently to avoid excessive signaling overhead, which would increase with an increase in the number of coexistence STAs being serviced by the AP.

Abstract translation: 描述了通过维持保护间隔来处理通过多个RAT进行通信的相互时钟漂移的方法，系统和设备。 保护间隔是不发生传输的时间间隔。 例如，可以相对于STA的调度的干扰间隔来设置保护间隔，使得即使在时钟漂移（即，卫星）的情况下，来自AP的到STA的传输也不会与不同的RAT（例如，干扰）传输/接收相冲突 间隔在两侧的调度干扰间隔）。 这样的方法可以允许时钟被重新同步（例如，通过STA通知AP干扰间隔的调度表），以避免过多的信令开销，这将随着被共同服务的STA的数量的增加而增加 AP。

公开(公告)号：US09401874B2

公开(公告)日：2016-07-26

申请号：US13966901

申请日：2013-08-14

Applicant: QUALCOMM Incorporated

Inventor： Yanjun Sun ,  Peerapol Tinnakornsrisuphap ,  Sai Yiu Duncan Ho ,  Bibhu Prasad Mohanty

IPC: G06F15/16 ,  H04L12/937 ,  H04W76/02 ,  H04W24/06 ,  H04W84/12

CPC classification number: H04L49/253 ,  H04W24/06 ,  H04W76/18 ,  H04W84/12

Abstract: Access point functionality of a network device may be disabled, resulting in a coverage hole in a communication network and affecting performance of a client device. Various techniques can be implemented for detecting and minimizing coverage holes. In one embodiment, the network device can selectively establish a communication link with the client device depending on whether the client device is in a coverage hole and depending on whether the client device can detect another access point in the communication network. In some embodiments, the client device can determine that it is in a coverage hole in response to detecting a reserved SSID and can accordingly notify a central coordinator of the communication network. In some embodiments, the central coordinator can identify the network device (with disabled access point functionality) that can eliminate the coverage hole and can cause the network device to enable its access point functionality.

Abstract translation: 可以禁用网络设备的接入点功能，导致通信网络中的覆盖漏洞并影响客户端设备的性能。 可以实现各种技术来检测和最小化覆盖孔。 在一个实施例中，网络设备可以根据客户端设备是否处于覆盖范围内并且取决于客户端设备是否能够检测通信网络中的另一个接入点来选择性地建立与客户端设备的通信链路。 在一些实施例中，响应于检测到保留的SSID，客户端设备可以确定它处于覆盖范围之内，并且可以相应地通知通信网络的中央协调器。 在一些实施例中，中央协调器可以识别网络设备（具有禁用的接入点功能），其可以消除覆盖范围，并且可以使网络设备实现其接入点功能。