公开(公告)号：US20180302832A1

公开(公告)日：2018-10-18

申请号：US15952163

申请日：2018-04-12

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Srinivas Katar ,  Sai Yiu Duncan Ho ,  Alireza Raissinia ,  Brian Michael Buesker ,  George Cherian ,  Ajay Kumar Pathak ,  Hao Zhu

IPC: H04W36/08 ,  H04W36/26 ,  H04W36/30 ,  H04W36/00

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer-readable media, for serving AP selection in a network having multiple access points (APs). In one aspect, a serving AP selection unit can steer a device (such as a client station, STA, or a child AP) based on a quality of service profile (such as a capacity requirement or a delay requirement) of the device. The device may be initially associated with a first AP (as the current serving AP) in the network. The serving AP selection unit may select a second AP as a new serving AP for the device, and cause the device to associate with the second AP rather than the first AP. The selection of a serving AP may take into account delay or hop count in addition to path capacities for various paths in the network.

公开(公告)号：US20180279130A1

公开(公告)日：2018-09-27

申请号：US15927901

申请日：2018-03-21

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Srinivas Katar ,  Sai Yiu Duncan Ho ,  Alireza Raissinia ,  Brian Michael Buesker ,  George Cherian

IPC: H04W16/10 ,  H04W72/04

CPC classification number: H04W16/10 ,  H04B17/345 ,  H04W24/02 ,  H04W72/0453 ,  H04W88/08

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for enhanced channel selection in a network having multiple access points (APs). The enhanced channel selection may optimize the overall performance of the network by incorporating considerations about the impact on other APs in a big-picture view of the network. In one aspect, enhanced channel selection may combine a first channel selection process at a first AP (based on first channel selection by the first AP) with a second channel selection at a Multi-AP Controller. Coordination between the first AP and the Multi-AP Controller may improve a channel selection technique to optimize channel selection based on considerations of the overall network.

公开(公告)号：US20180152860A1

公开(公告)日：2018-05-31

申请号：US15361982

申请日：2016-11-28

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Srinivas Katar ,  Chao Zou

IPC: H04W28/02 ,  H04W72/04 ,  H04L5/00 ,  H04L29/06 ,  H04L12/26

Abstract: Methods, systems, and devices for wireless communication are described for buffer status report triggering. An access point (AP) may identify that an amount of uplink data queued in a buffer of a station is less than a predetermined threshold. The AP may determine that a buffer status report (BSR) trigger condition is satisfied by estimating that the station has data to transmit to the access point, or by identifying that the access point will schedule an uplink transmission for the station. The AP may transmit a BSR trigger to the station based at least in part on identifying that the amount of uplink data queued in the buffer is less than the predetermined threshold and determining that the BSR trigger condition is satisfied.

公开(公告)号：US09986492B2

公开(公告)日：2018-05-29

申请号：US14843597

申请日：2015-09-02

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Katar ,  Xiaolong Huang ,  Keshav Kishore Sahai ,  Farrukh Usmani ,  Hoon Ki Lee

IPC: H04W24/10 ,  H04W8/02 ,  H04B17/318 ,  H04W24/02 ,  H04W48/16 ,  H04L12/26

CPC classification number: H04W48/16 ,  H04B17/318 ,  H04L43/16 ,  H04W8/02 ,  H04W24/02 ,  H04W24/10

Abstract: Methods, systems, and devices are described for wireless communications. A communication device may utilize enhanced roaming techniques to dynamically adjust signal strength thresholds in a high density AP environment. For instance, a communication device determines a signal strength of a communication link between a wireless device and an access point (AP). The communication device further compares the signal strength value to at least a low threshold and a high threshold and performs a channel scan for the communication link when the signal strength value is below the low threshold. The communication device also adjusts the low threshold when the signal strength value is greater than the high threshold.

公开(公告)号：US20180048679A1

公开(公告)日：2018-02-15

申请号：US15726452

申请日：2017-10-06

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Vijayalakshmi R Raveendran ,  Xiaodong Wang ,  Fawad Shaukat

IPC: H04L29/06 ,  H04W99/00

CPC classification number: H04L65/00 ,  H04L69/24 ,  H04W99/00

Abstract: As part of a communication session, a wireless source device can transmit audio and video data to a wireless sink device, and the wireless sink device can transmit user input data received at the wireless sink device back to the wireless source device. In this manner, a user of the wireless sink dev ice can control the wireless source device and control the content that is being transmitted from the wireless source device to the wireless sink device. The user input data transmitted by the wireless sink device can be input data obtained at a third party device and forwarded to the wireless source device.

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：US09674687B2

公开(公告)日：2017-06-06

申请号：US14607327

申请日：2015-01-28

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang

IPC: H04B7/24 ,  H04W8/00 ,  G06Q30/06 ,  H04L29/08 ,  G06F13/40 ,  H04W84/12

CPC classification number: H04W8/005 ,  G06F13/4004 ,  G06Q30/0601 ,  H04L67/12 ,  H04L67/16 ,  H04W84/12

Abstract: A wireless dockee may access a vendor-specific feature available on a peripheral device in communication with a wireless docking center. Information regarding the vendor-specific feature may be communicated by the wireless docking center to the wireless dockee both during pre-association discovery as well as via a service description that corresponds with the vendor-specific feature. The wireless dockee may use the received information to generate an access request to the peripheral device.

公开(公告)号：US20170064618A1

公开(公告)日：2017-03-02

申请号：US14843597

申请日：2015-09-02

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Katar ,  Xiaolong Huang ,  Keshav Kishore Sahai ,  Farrukh Usmani ,  Hoon Ki Lee

IPC: H04W48/16 ,  H04W8/02 ,  H04W24/10 ,  H04W24/02 ,  H04L12/26

CPC classification number: H04W48/16 ,  H04B17/318 ,  H04L43/16 ,  H04W8/02 ,  H04W24/02 ,  H04W24/10

Abstract: Methods, systems, and devices are described for wireless communications. A communication device may utilize enhanced roaming techniques to dynamically adjust signal strength thresholds in a high density AP environment. For instance, a communication device determines a signal strength of a communication link between a wireless device and an access point (AP). The communication device further compares the signal strength value to at least a low threshold and a high threshold and performs a channel scan for the communication link when the signal strength value is below the low threshold. The communication device also adjusts the low threshold when the signal strength value is greater than the high threshold.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 通信设备可以利用增强的漫游技术在高密度AP环境中动态调整信号强度阈值。 例如，通信设备确定无线设备和接入点（AP）之间的通信链路的信号强度。 通信装置还将信号强度值与至少低阈值和高阈值进行比较，并且当信号强度值低于低阈值时，对通信链路进行信道扫描。 当信号强度值大于高阈值时，通信设备还调整低阈值。

公开(公告)号：US20170041961A1

公开(公告)日：2017-02-09

申请号：US14819207

申请日：2015-08-05

Applicant: QUALCOMM Incorporated

Inventor： Chao Zou ,  Srinivas Katar ,  Xiaolong Huang ,  Hao Zhu

IPC: H04W74/08 ,  H04L12/807 ,  H04W24/08

CPC classification number: H04W74/0875 ,  H04L47/27 ,  H04W24/08 ,  H04W74/002 ,  H04W74/0891 ,  H04W84/12

Abstract: Methods, systems, and devices are described for wireless communication. A wireless device may detect a delay in reverse link throughput. The wireless device may reduce the delay by modifying channel access parameters. In one aspect, the wireless device may adjust enhanced distributed channel access (EDCA) parameters. For example, the wireless device may modify contention window size (CW) and arbitration interframe spacing (AIFS). In some cases, the wireless device may instigate EDCA parameter adjustments in another wireless device in the wireless system (e.g., by sending an EDCA adjustment request message). The channel access adjustments may be triggered by detection of various conditions that are indicative of the reverse link delay. For example, the wireless device may monitor the communication of acknowledgments (ACKs) and adjust EDCA parameters if the ACKs are delayed. In other cases, the wireless device may adjust EDCA parameters based at least in part on multi-user (MU) communications.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 无线设备可以检测到反向链路吞吐量的延迟。 无线设备可以通过修改信道接入参数来减少延迟。 在一个方面，无线设备可以调整增强的分布式信道访问（EDCA）参数。 例如，无线设备可以修改竞争窗口大小（CW）和仲裁帧间间隔（AIFS）。 在一些情况下，无线设备可以在无线系统中的另一无线设备（例如通过发送EDCA调整请求消息）中发起EDCA参数调整。 可以通过检测指示反向链路延迟的各种条件来触发频道访问调整。 例如，如果ACK被延迟，则无线设备可以监视确认（ACK）的通信并调整EDCA参数。 在其他情况下，无线设备可以至少部分地基于多用户（MU）通信来调整EDCA参数。

公开(公告)号：US20170019837A1

公开(公告)日：2017-01-19

申请号：US15065037

申请日：2016-03-09

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Katar ,  Xiaolong Huang ,  Hoon Ki Lee ,  Farrukh Usmani

IPC: H04W48/16 ,  H04W36/00 ,  H04B17/318 ,  H04W8/22

CPC classification number: H04W48/16 ,  H04B17/318 ,  H04W8/22 ,  H04W36/0094 ,  H04W64/006 ,  H04W84/12 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22

Abstract: Systems and methods are disclosed that may adjust the likelihood and/or frequency with which a wireless device performs scanning operations to reduce power consumption without degrading the ability of the wireless device to identify the best available access point with which to associate. In some aspects, the wireless device may adjust the likelihood and/or frequency of performing scanning operations based on a motion state of the wireless device, a change in the motion state of the wireless device, a signal strength of an associated access point, and/or the connection status of the wireless device.

Abstract translation: 公开了可以调整无线设备执行扫描操作以降低功耗的可能性和/或频率的系统和方法，而不降低无线设备识别与之关联的最佳可用接入点的能力。 在一些方面，无线设备可以基于无线设备的运动状态，无线设备的运动状态的改变，相关接入点的信号强度以及相关接入点的信号强度来调整执行扫描操作的可能性和/或频率 /或无线设备的连接状态。