公开(公告)号：US09838940B2

公开(公告)日：2017-12-05

申请号：US14487019

申请日：2014-09-15

Applicant: QUALCOMM Incorporated

Inventor： Gwendolyn Denise Barriac ,  Simone Merlin ,  Hao Zhu ,  Srinivas Katar ,  Lawrence Winston Yonge, III ,  Chao Zou ,  Bin Tian ,  Yan Zhou ,  Hemanth Sampath

IPC: H04W4/00 ,  H04W40/02 ,  H04W88/08 ,  H04W74/00 ,  H04W48/08 ,  H04W74/08 ,  H04W84/12 ,  H04W48/16

CPC classification number: H04W40/02 ,  H04W48/08 ,  H04W48/16 ,  H04W74/006 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/08

Abstract: Aspects of the present disclosure provide techniques and apparatus for deferral based on basic service set identification (BSSID) information. According to certain aspects, a method for wireless communications is provided. The method generally includes receiving, on a shared access medium, a packet having at least one deferral-related parameter and deciding whether to defer transmission on the shared access medium based, at least in part, on the deferral-related parameter. Another method may generally include generating a packet comprising at least one deferral-related parameter to be used by another apparatus for deciding whether or not the other apparatus should defer transmitting on a shared access medium and providing the packet to the other apparatus.

公开(公告)号：US09722826B2

公开(公告)日：2017-08-01

申请号：US14542464

申请日：2014-11-14

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/00 ,  H04L1/16 ,  H04L1/00

CPC classification number: H04L27/0008 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/1614

Abstract: Methods, systems, and devices are described for wireless communications. More particularly, the described features relate to techniques for adjusting a modulation and coding scheme (MCS) to account for different airtime utilizations (available airtime actually utilized by a device for transmissions) resulting from different MCSs. In one example, a method for wireless communication may involve: determining a media access control (MAC) efficiency for a station of a plurality of stations based at least in part on a real-time multi-user (MU) physical protocol data unit (PPDU) length, a real-time physical layer service data unit (PSDU) length of each of the plurality of stations, and a modulation and coding scheme (MCS) of the station; adjusting a goodput estimate of the station using the MAC efficiency; and, adjusting the MCS of the station using the adjusted goodput estimate.

公开(公告)号：US20170086169A1

公开(公告)日：2017-03-23

申请号：US14862010

申请日：2015-09-22

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Chao Zou ,  Srinivas Katar

IPC: H04W72/04 ,  H04W72/10

CPC classification number: H04W72/121 ,  H04W72/042 ,  H04W72/048 ,  H04W84/12

Abstract: Methods, systems, and devices are described for wireless communication. An access point (AP) may group stations (STAs) into multi-user (MU) groups with group identifiers (IDs). Within each MU group, the AP may dynamically configure several STAs into a transmission set. Each transmission set may include a different combination of STAs. In some cases, the AP may assign a STA to multiple transmission sets within a group ID. In certain scenarios, the AP may assign a STA to more than one group ID. The AP may restrict the number of group IDs to which a STA is assigned. Each MU group may include a number of user positions that may be occupied by one or more STAs. In some cases, the AP may restrict the number of STAs that may be assigned to (i.e., occupy) each user position.

公开(公告)号：US20170006480A1

公开(公告)日：2017-01-05

申请号：US14872856

申请日：2015-10-01

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Srinivas Katar ,  Chao Zou

IPC: H04W24/02 ,  H04W52/26

CPC classification number: H04W24/02 ,  H04B7/0452 ,  H04W4/08 ,  H04W52/267 ,  H04W84/12

Abstract: Methods, systems, and devices are described for wireless communications. An access point (AP) communicates to a multi-user (MU) group of stations (STAs) that are assigned disparate modulation and coding schemes (MCSs). The AP sends an MU transmission to the MU group using an MCS and transmit power combination that is associated with the highest estimated throughput. The AP selects the MCS and transmit power combination from two configurations. In the first configuration, a single MCS and corresponding transmit power is used for the MU transmission. In the second configuration, a single transmit power and two different MCSs are used for the MU transmission. Both configurations may use the MCSs associated with the STAs in the MU group. The transmit power may correspond to one of the selected MCSs.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 接入点（AP）与分配了不同调制和编码方案（MCS）的多用户（MU）组（STA）通信。 AP使用与最高估计吞吐量相关联的MCS和发射功率组合向MU组发送MU传输。 AP从两个配置中选择MCS并发送功率组合。 在第一种配置中，单个MCS和相应的发射功率用于MU传输。 在第二种配置中，单个发射功率和两个不同的MCS用于MU传输。 两种配置可以使用与MU组中的STA相关联的MCS。 发射功率可以对应于所选择的MCS之一。

公开(公告)号：US09538535B2

公开(公告)日：2017-01-03

申请号：US14708743

申请日：2015-05-11

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Tevfik Yucek ,  Srinivas Katar

IPC: H04W4/00 ,  H04B7/216 ,  H04W72/04 ,  H04W24/02 ,  H04W84/12

CPC classification number: H04W72/0453 ,  H04L1/0003 ,  H04W24/02 ,  H04W36/06 ,  H04W36/30 ,  H04W84/12 ,  H04W88/06

Abstract: A system and method are disclosed that may allow a STA to selectively change frequency bands from an operating band to a candidate band based on operating conditions. In response to determining that a channel condition is within a band switch region associated with a candidate band, the STA may select the candidate band and temporarily switch to it. The STA may select an initial modulation and coding scheme for the candidate band and probe the candidate band with data to determine an estimate of candidate band goodput. If the estimate of candidate band goodput is greater than the operating band goodput, the STA may switch to the candidate band.

Abstract translation: 公开了一种系统和方法，其可以允许STA基于操作条件选择性地将频带从工作频带改变到候选频带。 响应于确定信道条件在与候选频带相关联的频带切换区域内，STA可以选择候选频段并暂时切换到它。 STA可以选择用于候选频带的初始调制和编码方案，并用数据探测候选频带以确定候选频带有效输出的估计。 如果候选频带的吞吐量的估计大于工作频带的吞吐量，则STA可以切换到候选频带。

公开(公告)号：US09537792B2

公开(公告)日：2017-01-03

申请号：US14015518

申请日：2013-08-30

Applicant: QUALCOMM Incorporated

Inventor： Rouhana Rouhana ,  Hassan Kaywan Afkhami ,  Srinivas Katar

IPC: H04L27/34 ,  H04L12/911 ,  H04L12/801 ,  H04L5/00

CPC classification number: H04L47/828 ,  H04L5/001 ,  H04L5/0041 ,  H04L5/006 ,  H04L5/0071 ,  H04L27/34 ,  H04L47/15

Abstract: A master network device determines to transmit data from the master network device to a plurality of client network devices of a network. In one example, the master network device can generate a data frame including a payload with a plurality of symbols. The payload may include at least one symbol allocated for each of the client network devices. The plurality of symbols may be arranged in a predefined pattern in the payload. In another example, the master network device may generate a data frame including a payload with one or more symbols. Each symbol may include a plurality of frequency carriers, and may include at least one frequency carrier allocated for each of the client network devices. The plurality of frequency carriers can be allotted to the client network devices according to a partitioning pattern. The master network device then transmits the data frame to the client network devices.

Abstract translation: 主网络设备确定将数据从主网络设备传送到网络的多个客户端网络设备。 在一个示例中，主网络设备可以生成包括具有多个符号的有效载荷的数据帧。 有效载荷可以包括为每个客户端网络设备分配的至少一个符号。 多个符号可以以有效载荷中的预定义模式布置。 在另一示例中，主网络设备可以生成包括具有一个或多个符号的有效载荷的数据帧。 每个符号可以包括多个频率载波，并且可以包括为每个客户端网络设备分配的至少一个频率载波。 可以根据划分模式将多个频率载波分配给客户端网络设备。 主网络设备然后将数据帧发送到客户端网络设备。

公开(公告)号：US20160338059A1

公开(公告)日：2016-11-17

申请号：US14708743

申请日：2015-05-11

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Tevfik Yucek ,  Srinivas Katar

IPC: H04W72/04 ,  H04W24/02

CPC classification number: H04W72/0453 ,  H04L1/0003 ,  H04W24/02 ,  H04W36/06 ,  H04W36/30 ,  H04W84/12 ,  H04W88/06

Abstract: A system and method are disclosed that may allow a STA to selectively change frequency bands from an operating band to a candidate band based on operating conditions. In response to determining that a channel condition is within a band switch region associated with a candidate band, the STA may select the candidate band and temporarily switch to it. The STA may select an initial modulation and coding scheme for the candidate band and probe the candidate band with data to determine an estimate of candidate band goodput. If the estimate of candidate band goodput is greater than the operating band goodput, the STA may switch to the candidate band.

Abstract translation: 公开了一种系统和方法，其可以允许STA基于操作条件选择性地将频带从工作频带改变到候选频带。 响应于确定信道条件在与候选频带相关联的频带切换区域内，STA可以选择候选频段并暂时切换到它。 STA可以选择用于候选频带的初始调制和编码方案，并用数据探测候选频带以确定候选频带有效输出的估计。 如果候选频带的吞吐量的估计大于工作频带的吞吐量，则STA可以切换到候选频带。

公开(公告)号：US20160295580A1

公开(公告)日：2016-10-06

申请号：US14678652

申请日：2015-04-03

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Katar ,  James Simon Cho ,  Guido Frederiks ,  Qinghai Gao ,  Xiaolong Huang ,  Chao Zou ,  Rahul Malik

IPC: H04W72/04 ,  H04W52/02 ,  H04W24/08

CPC classification number: H04W72/0446 ,  H04W24/08 ,  H04W28/06 ,  H04W52/0235 ,  H04W74/002 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/23

Abstract: Methods, systems, and devices are described for wireless communication at a wireless device. A wireless device (e.g., station or access point) may adapt short inter-frame space (SIFS) burst parameters to improve the performance of the overall network while providing enriched user experience. A wireless device may monitor traffic conditions on the network and dynamically adapt the SIFS burst parameters associated with one or more stations based at least in part on detected variations on the traffic channel. In other examples, the wireless device may allocate a common SIFS burst parameter to be used by a plurality of wireless devices in the basic service set (BSS).

Abstract translation: 描述了在无线设备处的无线通信的方法，系统和设备。 无线设备（例如，站点或接入点）可以适应短帧间空间（SIFS）突发参数以改善整个网络的性能，同时提供丰富的用户体验。 无线设备可以至少部分地基于在业务信道上检测到的变化来监视网络上的业务状况并动态地适应与一个或多个站相关联的SIFS突发参数。 在其他示例中，无线设备可以分配将由基本服务集（BSS）中的多个无线设备使用的公共SIFS突发参数。

公开(公告)号：US09413688B2

公开(公告)日：2016-08-09

申请号：US13924301

申请日：2013-06-21

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Katar ,  Lawrence Winston Yonge, III ,  Manjunath Anandarama Krishnam ,  Bradley Robert Lynch ,  Ehab Tahir

IPC: H04L12/911 ,  H04L12/413 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18

CPC classification number: H04L47/826 ,  H04L1/0009 ,  H04L1/1671 ,  H04L1/1887 ,  H04L12/413 ,  H04L2001/0094

Abstract: A method includes determining that a first station has been allocated a first time period to transmit over a shared medium in a network. The method includes transmitting, from the first station to a second station over the shared medium during the first time period, wherein stations other than the first station and the second station refrain from transmitting over the shared medium during the first time period. The method includes receiving, from the second station, a request message to allow the second station to transmit during the first time period and a requested amount of time to transmit. The method includes, in response to allowing the second station to transmit during the first time period, determining an authorized amount of time for the second station to transmit during the first time period, and transmitting an authorization message for the second station to transmit and the authorized amount of time.

Abstract translation: 一种方法包括确定第一站已被分配了第一时间段以通过网络中的共享介质进行传输。 该方法包括在第一时间段期间通过共享介质从第一站传送到第二站，其中除了第一站和第二站之外的站不在第一时间段内通过共享介质进行传输。 所述方法包括从所述第二站接收请求消息以允许所述第二站在所述第一时间周期期间进行发送以及所请求的发送时间量。 所述方法包括响应于允许所述第二站在所述第一时间周期期间进行传输，确定所述第二站在所述第一时间段期间发送的授权的时间量，以及发送用于所述第二站发送的授权消息，并且 授权时间。

公开(公告)号：US20160165475A1

公开(公告)日：2016-06-09

申请号：US14962530

申请日：2015-12-08

Applicant: QUALCOMM Incorporated

Inventor： Youhan Kim ,  Zhanfeng Jia ,  Srinivas Katar ,  Rahul Malik ,  Jay Kumar Sundararajan ,  Arnaud Meylan ,  Ning Zhang ,  George Cherian

IPC: H04W24/10

CPC classification number: H04W24/10 ,  H04W28/16 ,  H04W48/12 ,  H04W48/16 ,  H04W48/20

Abstract: Methods, apparatus, and computer-readable media for wireless communication may involve techniques for throughput estimation. An expected air time parameter may be used as a parameter for estimating throughput. The expected air time parameter may be indicative of an estimated air time fraction obtainable for communications using an access point (AP), for example, between a wireless station (STA) and the AP. Either the expected air time parameter or an estimated air time fraction determined (e.g., calculated) from the expected air time parameter may be transmitted from the AP to the STA (or other communication device) to allow the STA (or other communication device) to determine an estimated throughput for communications using the AP.

Abstract translation: 用于无线通信的方法，装置和计算机可读介质可以涉及用于吞吐量估计的技术。 可以使用预期的空中时间参数作为估计吞吐量的参数。 预期空中时间参数可以指示例如在无线站（STA）和AP之间使用接入点（AP）的通信可获得的估计空中时间分数。 可以从AP向STA（或其他通信设备）发送从预期空中时间参数确定（例如，计算）的预期空中时间参数或估计空中时间分数，以允许STA（或其他通信设备） 确定使用AP的通信的估计吞吐量。