公开(公告)号：US20150372849A1

公开(公告)日：2015-12-24

申请号：US14842743

申请日：2015-09-01

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Bin Tian ,  Rahul Tandra ,  Dung Ngoc Doan

IPC: H04L27/26 ,  H04B17/309

CPC classification number: H04L27/2613 ,  H04B17/309 ,  H04L1/0625 ,  H04L1/0681 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2607 ,  H04L27/2611

Abstract: Methods, devices, and computer program products for improving training field design in packets with increased symbol durations are disclosed. In one aspect, a method of transmitting a packet on a wireless communication network is disclosed. The method includes transmitting a preamble of the packet over a number (NSTS) of space-time-streams over a plurality of tones, the preamble including a number (NTF) of training fields configured to be used for channel estimation for each of the NSTS of space-time-streams, wherein a value of the NSTS is greater than one and a value of the NTF is less than the value of the NSTS. The method further includes transmitting a payload of the packet over the NSTS of space-time-streams.

Abstract translation: 公开了用于提高符号持续时间的分组中的训练场设计的方法，设备和计算机程序产品。 一方面，公开了一种在无线通信网络上发送分组的方法。 该方法包括在多个音调上通过多个（NSTS）个空时流发送分组的前导码，该前导码包括被配置为用于每个NSTS的信道估计的训练场的数目（NTF） 的时间流，其中NSTS的值大于1，并且NTF的值小于NSTS的值。 该方法还包括通过空时 - 时间流的NSTS发送分组的有效载荷。

公开(公告)号：US20140328235A1

公开(公告)日：2014-11-06

申请号：US14265255

申请日：2014-04-29

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Gwendolyn Denise Barriac ,  Hemanth Sampath ,  Sameer Vermani ,  Bin Tian ,  Yan Zhou ,  Rahul Tandra

IPC: H04L5/00 ,  H04B7/26 ,  H04J1/02 ,  H04W52/02

CPC classification number: H04B7/2621 ,  H04B7/26 ,  H04J1/02 ,  H04J1/14 ,  H04L1/1685 ,  H04L1/18 ,  H04L1/1861 ,  H04L5/0005 ,  H04L5/0007 ,  H04L5/0012 ,  H04L5/0037 ,  H04L5/005 ,  H04L5/0055 ,  H04L5/006 ,  H04L5/0069 ,  H04L5/0073 ,  H04L5/0094 ,  H04L2001/0093 ,  H04W52/0212 ,  H04W52/0219 ,  H04W74/002 ,  H04W74/02 ,  H04W74/0816 ,  Y02D70/00 ,  Y02D70/122 ,  Y02D70/142 ,  Y02D70/449

Abstract: Systems, methods, and devices for high-efficiency wireless frequency division multiplexing are provided. A method includes exchanging, at an access point, at least one frame reserving a wireless medium with at least one of a first and second wireless device. The method further includes receiving a first communication on a first set of wireless frequencies from the first wireless device. The method further includes receiving a second communication, at least partially concurrent with the first communication, on a second set of wireless frequencies from the second wireless device. The method further includes transmitting at least one acknowledgment of the first and second communication. The first set and the second set are mutually exclusive subsets of a set of wireless frequencies available for use by both the first and second wireless device.

Abstract translation: 提供了高效无线频分复用的系统，方法和设备。 一种方法包括在接入点处交换与第一和第二无线设备中的至少一个无线设备保留无线介质的至少一个帧。 该方法还包括从第一无线设备接收在第一组无线频率上的第一通信。 该方法还包括在第二无线设备的第二组无线频率上接收与第一通信至少部分并发的第二通信。 该方法还包括发送第一和第二通信的至少一个确认。 第一组和第二组是可供第一和第二无线装置使用的一组无线频率的互斥子集。

公开(公告)号：US20140307650A1

公开(公告)日：2014-10-16

申请号：US14250252

申请日：2014-04-10

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Rahul Tandra ,  Simone Merlin ,  Hemanth Sampath

IPC: H04L5/00

CPC classification number: H04L5/0044 ,  H04L5/0094 ,  H04L27/261 ,  H04L27/2613 ,  H04W56/0035

Abstract: Systems, methods, and devices for wireless communication are disclosed herein. One aspect of the disclosure provides a method of receiving a transmission from two or more wireless communication devices. The method includes receiving a first preamble transmitted by a first wireless device; simultaneously receiving a second preamble transmitted by a second wireless device; receiving a first portion of the transmission in a first section of a bandwidth, the first portion transmitted by the first wireless device including a first data section; and simultaneously receiving a second portion of the transmission in a second section of the bandwidth, the second section of the bandwidth not overlapping with the first section of the bandwidth, the second portion transmitted by the second wireless device, the second portion including a second data section.

Abstract translation: 本文公开了用于无线通信的系统，方法和设备。 本公开的一个方面提供了一种从两个或更多个无线通信设备接收传输的方法。 该方法包括：接收由第一无线设备发送的第一前同步码; 同时接收由第二无线设备发送的第二前导码; 在带宽的第一部分中接收所述传输的第一部分，由所述第一无线设备发送的包括第一数据部分的所述第一部分; 并且在所述带宽的第二部分中同时接收所述传输的第二部分，所述带宽的第二部分与所述带宽的第一部分不重叠，所述第二部分由所述第二无线设备发送，所述第二部分包括第二数据 部分。

公开(公告)号：US20140219110A1

公开(公告)日：2014-08-07

申请号：US13762338

申请日：2013-02-07

Applicant: QUALCOMM INCORPORATED

Inventor： Shu Du ,  Zhanfeng Jia ,  Ning Zhang ,  Chin-Hung Chen ,  James S. Cho ,  Rahul Tandra ,  Qinghai Gao

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04B7/0452 ,  H04L1/0007

Abstract: A method of providing aggregated MAC protocol data unit (AMPDU) duration control in a wireless communication device includes setting an AMPDU duration. Pass/fail statistics are collected for each MPDU of an AMPDU in a time window, W. A packet error rate (PER) difference is calculated between first and last sets of MPDUs for each AMPDU in the window. An average PER difference is calculated across all AMPDUs in the window. When the average PER difference is greater than a first threshold, then the AMPDU duration is decreased. When the difference is less than a second threshold, then the AMPDU duration is increased. When the difference is within the first and the second thresholds, then the method returns to the step of collecting for a next time window. The AMPDU duration can also be adjusted based on detected Doppler and line-of-sight transmissions.

Abstract translation: 在无线通信设备中提供聚合MAC协议数据单元（AMPDU）持续时间控制的方法包括设置AMPDU持续时间。 在时间窗口W中收集AMPDU的每个MPDU的通过/失败统计信息。在窗口中的每个AMPDU的第一组和最后一组MPDU之间计算分组错误率（PER）差异。 在窗口中的所有AMPDU之间计算平均PER差异。 当平均PER差大于第一阈值时，AMPDU持续时间减小。 当差值小于第二阈值时，AMPDU持续时间增加。 当差异在第一和第二阈值内时，该方法返回到下一个时间窗口的收集步骤。 AMPDU持续时间也可以根据检测到的多普勒和视线传输进行调整。

公开(公告)号：US20140198741A1

公开(公告)日：2014-07-17

申请号：US14102358

申请日：2013-12-10

Applicant: QUALCOMM Incorporated

Inventor： Gwendolyn Denise Barriac ,  Hemanth Sampath ,  Santosh Paul Abraham ,  Rahul Tandra ,  Yan Zhou ,  Vincent Knowles Jones, IV ,  Sameer Vermani ,  Simone Merlin

IPC: H04L5/00

CPC classification number: H04L5/0037 ,  H04W74/002 ,  H04W74/006 ,  H04W84/12

Abstract: Systems and methods for selecting medium access parameters for each communication session are disclosed. In one aspect an access point includes a processor configured to select a value for a medium access parameter for a particular communication session between the access point and a wireless station.

Abstract translation: 公开了用于为每个通信会话选择介质访问参数的系统和方法。 在一个方面，接入点包括被配置为为接入点和无线站之间的特定通信会话选择用于媒体接入参数的值的处理器。

公开(公告)号：US20140198642A1

公开(公告)日：2014-07-17

申请号：US14152861

申请日：2014-01-10

Applicant: QUALCOMM Incorporated

Inventor： Gwendolyn Denise Barriac ,  Vincent Knowles Jones ,  Hemanth Sampath ,  Santosh Paul Abraham ,  Rahul Tandra ,  Yan Zhou ,  Simone Merlin

IPC: H04W74/08 ,  H04W28/02

CPC classification number: H04W74/0808 ,  H04W28/0289 ,  H04W74/08

Abstract: In one aspect, a method of communicating via a wireless medium by a wireless communications apparatus within a network is provided. The method includes detecting an operating characteristic associated with a load of the network. The method further includes determining an process for adjusting a size of a contention window in response to a successful transmission of a frame based on the detected operating characteristic, the contention window being provided for determining a deferral period for deferring access to the wireless medium. The method further transmitting information indicating the process to one or more wireless devices operating within the network.

Abstract translation: 一方面，提供了一种通过网络内的无线通信装置经由无线介质进行通信的方法。 该方法包括检测与网络的负载相关联的操作特性。 该方法还包括：基于检测到的操作特性，确定响应于帧的成功发送来调整竞争窗口的大小的过程，所述争用窗口被提供用于确定用于推迟对无线介质的访问的延迟周期。 所述方法还向所述网络内的一个或多个无线设备发送指示所述过程的信息。

公开(公告)号：US20140126580A1

公开(公告)日：2014-05-08

申请号：US14062608

申请日：2013-10-24

Applicant: QUALCOMM Incorporated

Inventor： Hemanth Sampath ,  Simone Merlin ,  Vincent Knowles Jones, IV ,  Gwendolyn Denise Barriac ,  Bin Tian ,  Yan Zhou ,  Sameer Vermani ,  Rahul Tandra

IPC: H04L12/939

CPC classification number: H04L49/557 ,  H04L1/0057 ,  H04L1/1819 ,  H04L1/1858 ,  H04L1/188 ,  H04W84/12

Abstract: Systems and methods for communicating in a wireless communication system are described. Various processes for detecting and correcting communication errors described. In aspect a method in a wireless communication system is provided. The method includes transmitting a first packet from a sending device to a receiving device. The method further includes listening for an acknowledgement during a first time period. The method further includes transmitting a second packet to the receiving device after a second time period, when an acknowledgement is not received during the first time period. The second packet includes one or more error-correction codes operable to recover the first packet.

Abstract translation: 描述了在无线通信系统中进行通信的系统和方法。 用于检测和纠正所描述的通信错误的各种过程。 在一方面，提供了一种在无线通信系统中的方法。 该方法包括从发送设备向接收设备发送第一分组。 该方法还包括在第一时间段期间收听确认。 所述方法还包括当在第一时间段内没有接收到确认时，在第二时间段之后向所述接收设备发送第二分组。 第二分组包括可操作以恢复第一分组的一个或多个纠错码。

公开(公告)号：US10582026B2

公开(公告)日：2020-03-03

申请号：US15826541

申请日：2017-11-29

Applicant: QUALCOMM Incorporated

Inventor： Dung Ngoc Doan ,  Tao Tian ,  Sameer Vermani ,  Bin Tian ,  Lin Yang ,  Eric Pierre Rebeiz ,  Rahul Tandra ,  Simone Merlin ,  Alfred Asterjadhi ,  Yan Zhou

IPC: H04L29/06 ,  H04L27/26 ,  H04W72/04

Abstract: A method of wirelessly communicating a packet includes generating, at a first wireless device, a first packet including a first preamble decodable by a plurality of devices and a second preamble decodable by only a subset of the plurality of devices. The first preamble includes a first signal field. The second preamble includes a first training field. The method further includes transmitting the first packet concurrently with one or more second packets to be transmitted by wireless devices other than the first wireless device.

公开(公告)号：US10548111B2

公开(公告)日：2020-01-28

申请号：US15412291

申请日：2017-01-23

Applicant: QUALCOMM Incorporated

Inventor： Santosh Paul Abraham ,  Sameer Vermani ,  Maarten Menzo Wentink ,  Rahul Tandra ,  Hemanth Sampath

IPC: H04B7/06 ,  H04B7/0413 ,  H04B7/0452 ,  H04W72/00 ,  H04W4/08 ,  H04W72/12 ,  H04W84/12 ,  H04W8/18

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for efficiently managing groups of stations (STAs) receiving simultaneous transmissions in a multiuser multiple-input multiple-output (MU-MIMO) scheme. One example method generally includes; for a first apparatus in a number of groups of apparatuses, allocating a first spatial stream position for each of at least one first group in the number of the groups; and transmitting a first unicast message to the first apparatus, wherein the first unicast message comprises an indication of the allocated spatial stream position for each of the at least one first group and, for each group in the number of the groups, an indication of a membership status, in the group, of the first apparatus.

公开(公告)号：US20190173637A1

公开(公告)日：2019-06-06

申请号：US16256928

申请日：2019-01-24

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Rahul Tandra ,  Simone Merlin ,  Hemanth Sampath

IPC: H04L5/00 ,  H04L27/26 ,  H04W56/00

Abstract: Systems, methods, and devices for wireless communication are disclosed herein. One aspect of the disclosure provides a method of transmitting to two or more wireless communication devices. The method includes transmitting a first section of a preamble according to a first format, the first section of the preamble containing information informing devices compatible with the first format to defer to the transmission, transmitting a second section of the preamble according to a second format, the second section of the preamble containing tone allocation information, the tone allocation information identifying two or more wireless communication devices; and transmitting data to the two or more wireless communication devices simultaneously, the data contained on two or more sub-bands.