公开(公告)号：US20180227108A1

公开(公告)日：2018-08-09

申请号：US15424567

申请日：2017-02-03

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00

CPC classification number: H04B17/373 ,  H04B17/309 ,  H04B17/336 ,  H04L1/0002 ,  H04L1/0015 ,  H04L27/2601

Abstract: A method includes determining, based on a first packet error rate (PER) associated with a first communication data rate of data sent from a first electronic device to a second electronic device, a predicted second PER associated with a second communication data rate by increasing a value of the predicted second PER based on a first signal-to-noise ratio (SNR) sensitivity associated with the first communication data rate being less than a second SNR sensitivity associated with the second communication data rate or by decreasing the value of the predicted second PER based on the first SNR sensitivity being greater than the second SNR sensitivity. The method further includes selecting a communication data rate for communication from the first electronic device to the second electronic device based at least in part on the first PER and the predicted second PER.

公开(公告)号：US20170273100A1

公开(公告)日：2017-09-21

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：US20170079044A1

公开(公告)日：2017-03-16

申请号：US14850266

申请日：2015-09-10

Applicant: QUALCOMM Incorporated

Inventor： Hao Zhu ,  Srinivas Katar

IPC: H04W72/04

CPC classification number: H04W72/04 ,  H04W72/005 ,  H04W72/0406 ,  H04W72/082

Abstract: A method for resource allocation includes determining, based on topology information, resource compatibility between a first basic service set (BSS) and a second BSS. The method also includes, in response to determining the first BSS and the second BSS are incompatible, assigning a first device the first BSS to a first group of devices and assigning a second device of the second BSS to a second group of devices. The method further includes allocating a communication resource between multiple groups of devices, the multiple groups including the first group and the second group.

Abstract translation: 一种用于资源分配的方法包括基于拓扑信息来确定第一基本服务集（BSS）和第二BSS之间的资源兼容性。 该方法还包括响应于确定第一BSS而第二BSS不兼容，将第一设备将第一BSS分配给第一组设备并将第二BSS的第二设备分配给第二组设备。 该方法还包括在多个设备组之间分配通信资源，所述多个组包括第一组和第二组。

公开(公告)号：US09408230B2

公开(公告)日：2016-08-02

申请号：US14268829

申请日：2014-05-02

Applicant: QUALCOMM Incorporated

Inventor： Hao Zhu ,  Srinivas Katar ,  Simone Merlin ,  Chao Zou ,  Gwendolyn Denise Barriac ,  George Cherian ,  Santosh Paul Abraham ,  Lawrence Winston Yonge, III ,  Hemanth Sampath

IPC: H04W76/00 ,  H04W74/00 ,  H04W74/04

CPC classification number: H04W74/002 ,  H04W74/04

Abstract: A method includes determining, at a first transmitter, whether to permit reuse of a first transmit opportunity (TXOP) associated with a message. The method further includes sending a portion of the message from the first transmitter to a first receiver. The portion of the message indicates whether reuse, by a reuse transmitter, of the first TXOP is permitted. When reuse of the first TXOP is permitted, the reuse transmitter is permitted to send a second message while the first transmitter sends a second portion of the message to the first receiver during the first TXOP.

Abstract translation: 一种方法包括在第一发射机处确定是否允许与消息相关联的第一发射机会（TXOP）的重用。 该方法还包括将消息的一部分从第一发射机发送到第一接收机。 消息的部分指示是否允许由重用发射机重用第一TXOP。 当允许第一TXOP的重用时，允许重用发送器发送第二消息，同时第一发送器在第一TXOP期间向第一接收器发送消息的第二部分。

公开(公告)号：US09130658B2

公开(公告)日：2015-09-08

申请号：US13888160

申请日：2013-05-06

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Katar ,  Hao Zhu ,  Lawrence Winston Yonge, III ,  Manjunath Anandarama Krishnam

IPC: H04J15/00 ,  H04B3/54 ,  H04B7/12 ,  H04L12/721

CPC classification number: H04B3/54 ,  H04B3/544 ,  H04B7/12 ,  H04B2203/5445 ,  H04B2203/5466 ,  H04B2203/5495 ,  H04L45/123

Abstract: A network device can be configured to dynamically adapt its current primary receiver coupling to channel conditions. For each of a plurality of transmitting network devices, the network device can determine a potential primary receiver coupling of the first network device for receiving communications from the transmitting network device based, at least in part, on a performance measurement associated with each of the plurality of communication channels between the network device and the transmitting device. The network device can select its current primary receiver coupling based, at least in part, on the potential primary receiver couplings determined for the plurality of transmitting network devices. In addition, the network device can also determine how to communicate with a receiving network device based, at least in part, on a preferred communication channel between the two network devices and a current primary receiver coupling of the receiving network device.

Abstract translation: 网络设备可被配置为动态地使其当前的主接收机耦合到信道条件。 对于多个发射网络设备中的每一个，网络设备可以至少部分地基于与多个发射网络设备中的每一个相关联的性能测量来确定用于从发射网​​络设备接收通信的第一网络设备的潜在主接收机耦合 的网络设备和发送设备之间的通信信道。 至少部分地，网络设备可以基于为多个发送网络设备确定的潜在主接收机耦合来选择其当前的主接收机耦合。 此外，网络设备还可以至少部分地基于两个网络设备之间的优选通信信道和接收网络设备的当前主接收机耦合来确定如何与接收网络设备进行通信。

公开(公告)号：US20140328269A1

公开(公告)日：2014-11-06

申请号：US14268830

申请日：2014-05-02

Applicant: QUALCOMM Incorporated

Inventor： Hao Zhu ,  Srinivas Katar ,  Simone Merlin ,  Chao Zou ,  Gwendolyn Denise Barriac ,  George Cherian ,  Santosh Paul Abraham ,  Lawrence Winston Yonge, III ,  Hemanth Sampath

IPC: H04W72/04

CPC classification number: H04W74/002 ,  H04W74/04

Abstract: A method includes sending, from a first transmitter to a first receiver, a request to send (RTS) message associated with a first transmit opportunity (TXOP). The RTS message requests the first receiver to indicate whether reuse of the first TXOP is permitted. The method further includes receiving, at the first transmitter from the first receiver, a clear to send (CTS) message responsive to the RTS message.

Abstract translation: 一种方法包括从第一发射机向第一接收机发送与第一发射机会（TXOP）相关联的发送请求（RTS）消息。 RTS消息请求第一接收机指示是否允许第一TXOP的重用。 所述方法还包括在所述第一发射机处从所述第一接收机接收响应于所述RTS消息的清除发送（CTS）消息。

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：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：US09622262B2

公开(公告)日：2017-04-11

申请号：US14268855

申请日：2014-05-02

Applicant: QUALCOMM Incorporated

Inventor： Hao Zhu ,  Srinivas Katar ,  Simone Merlin ,  Chao Zou ,  Gwendolyn Denise Barriac ,  George Cherian ,  Santosh Paul Abraham ,  Lawrence Winston Yonge, III ,  Hemanth Sampath

IPC: H04W4/00 ,  H04W74/00 ,  H04W74/04

CPC classification number: H04W74/002 ,  H04W74/04

Abstract: A method includes determining, at a first transmitter, a clear channel access (CCA) threshold associated with reuse of a first transmit opportunity (TXOP) of a message. The method further includes sending, from the first transmitter to a first receiver, at least a portion of the message, wherein the portion of the message indicates the CCA threshold.

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。