公开(公告)号：US20140146678A1

公开(公告)日：2014-05-29

申请号：US14169715

申请日：2014-01-31

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Hemanth Sampath ,  Santosh Paul Abraham ,  Alfred Asterjadhi

IPC: H04L12/801

CPC classification number: H04W68/025 ,  H04L47/12

Abstract: Methods and systems for reducing overhead paging are described. One example of such a method includes generating a compressed traffic indication map (TIM) element, the compressed TIM element comprising a partial virtual bitmap field constructed from at least one encoded block field that includes an encoded block information field identifying at least one encoding mode for encoded block information, and sending the compressed TIM element to an at least one station (STA) associated with the access point that supports at least one multiple basic service set identifier (BSSID). The method may also include, in response to the at least one encoding mode comprising an offset, length, bitmap (OLB) mode, encoding the encoded block information field to include a length subfield followed by contiguous subblock subfields, each subblock subfield including a corresponding subblock of a partial virtual map.

Abstract translation: 描述了用于减少开销寻呼的方法和系统。 这种方法的一个例子包括生成压缩的业务量指示图（TIM）元素，该压缩的TIM元素包括由至少一个编码块字段构成的部分虚拟位图字段，该字段包括标识至少一个编码模式的编码块信息字段 编码块信息，以及将压缩的TIM元素发送到与支持至少一个多基本服务集标识符（BSSID）的接入点相关联的至少一个站（STA）。 该方法还可以包括响应于包括偏移，长度，位图（OLB）模式的至少一个编码模式，对编码的块信息字段进行编码以包括后续紧邻子块子字段的长度子字段，每个子块子字段包括对应的 部分虚拟地图的子块。

公开(公告)号：US20140016571A1

公开(公告)日：2014-01-16

申请号：US13789433

申请日：2013-03-07

Applicant: QUALCOMM INCORPORATED

Inventor： Tevfik Yucek ,  Hemanth Sampath ,  Vincent Knowles Jones

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H03M13/2707 ,  H04L1/0071 ,  H04L1/06

Abstract: Systems, methods, and devices to communicate in a white space are described herein. In some aspects, wireless communication transmitted in the white space authorizes an initial transmission by a device. The wireless communication may include power information for determining a power at which to transmit the initial transmission. The initial transmission may be used to request information identifying one or more channels in the white space available for transmitting data. In some aspects, a device for wireless communication is disclosed. The device may include a data interleaver with at least a first mode and a second mode. The modes may correspond to transmitting using either two or four channels of the white space.

Abstract translation: 这里描述了在白色空间中通信的系统，方法和设备。 在一些方面，在白色空间中发送的无线通信授权设备的初始传输。 无线通信可以包括用于确定发送初始传输的功率的功率信息。 初始传输可以用于请求识别可用于发送数据的空白区域中的一个或多个信道的信息。 在一些方面，公开了一种用于无线通信的装置。 该设备可以包括具有至少第一模式和第二模式的数据交织器。 这些模式可以对应于使用白色空间的两个或四个信道的发送。

公开(公告)号：US20130177090A1

公开(公告)日：2013-07-11

申请号：US13710296

申请日：2012-12-10

Applicant: Qualcomm Incorporated

Inventor： Lin Yang ,  Didier Johannes Richard Van Nee ,  Sameer Vermani ,  Hemanth Sampath

IPC: H04L12/24

CPC classification number: H04L41/16 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0091 ,  H04L25/0232 ,  H04L27/2602

Abstract: Systems, methods, and devices for communicating long packets are described herein. In one aspect, an apparatus for wireless communication includes a receiver and a processor. The receiver wirelessly receives via wireless local area network a data unit comprising a plurality of training fields interposed between data symbols. The plurality of training fields includes a first training field followed by a second training field. The first training field includes a gain control sequence, and the second training field includes a channel estimation sequence. The processor decodes at least one data symbol based on the plurality of training fields. In another aspect, an apparatus for wireless communication includes a processor and a transmitter. The processor generates a data unit comprising a plurality of training fields inserted between data symbols, and the transmitter wirelessly transmits the data unit via wireless local area network.

Abstract translation: 这里描述了用于传送长分组的系统，方法和设备。 一方面，一种用于无线通信的装置包括接收机和处理器。 接收机经由无线局域网无线地接收包括插入在数据符号之间的多个训练场的数据单元。 多个训练场包括跟随有第二训练场的第一训练场。 第一训练场包括增益控制序列，第二训练场包括信道估计序列。 处理器基于多个训练场解码至少一个数据符号。 在另一方面，一种用于无线通信的装置包括处理器和发射器。 处理器产生包括插入在数据符号之间的多个训练场的数据单元，并且发射机经由无线局域网无线地发送数据单元。

公开(公告)号：US20130170523A1

公开(公告)日：2013-07-04

申请号：US13729785

申请日：2012-12-28

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Lin Yang ,  Eugene J. Balk ,  Hemanth Sampath

IPC: H04B1/707

CPC classification number: H04B1/707 ,  H04B1/7075 ,  H04L25/0226 ,  H04L27/2602

Abstract: Systems, methods, and devices for communicating in a wireless network are described herein. In an aspect, a method of transmitting a data unit includes generating a data unit. The data unit includes one or more short training field (STF) sequences. The method further includes encoding each of the STF sequences with a pseudo-random spreading code. The code is based on an addressee of the data unit. The method further includes transmitting, at a transmitter, the data unit over a wireless channel. In another aspect, a method of processing a data unit includes receiving, at a receiver, a data unit. The data unit includes one or more STF sequences. The method further includes determining whether the data unit comprises one or more differentially encoded symbols. The method further includes receiving one or more long training field (LTF) sequences when the data unit does not comprise one or more differentially encoded symbols.

Abstract translation: 本文描述了用于在无线网络中通信的系统，方法和设备。 一方面，发送数据单元的方法包括生成数据单元。 数据单元包括一个或多个短训练场（STF）序列。 该方法还包括用伪随机扩展码对每个STF序列进行编码。 代码是基于数据单元的收件人。 该方法还包括通过无线信道在发射机处发送数据单元。 在另一方面，一种处理数据单元的方法包括在接收器处接收数据单元。 数据单元包括一个或多个STF序列。 该方法还包括确定数据单元是否包括一个或多个差分编码符号。 该方法还包括当数据单元不包括一个或多个差分编码符号时，接收一个或多个长训练场（LTF）序列。

公开(公告)号：US20130070748A1

公开(公告)日：2013-03-21

申请号：US13677382

申请日：2012-11-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W84/12

CPC classification number: H04W72/005 ,  H04B7/0452 ,  H04W4/08 ,  H04W8/186 ,  H04W72/121 ,  H04W84/12 ,  Y02D70/142 ,  Y02D70/444

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.

Abstract translation: 本公开的某些方面提供用于在多用户多输入多输出（MU-MIMO）方案中有效管理接收同时传输的站组（STA）的技术和装置。 一个示例性方法通常包括： 对于多个装置组中的第一装置，为所述组的数量中的至少一个第一组中的每一个分配第一空间流位置; 以及向所述第一装置发送第一单播消息，其中所述第一单播消息包括所述至少一个第一组中的每一个的所分配的空间流位置的指示，并且对于所述组中的每个组，指示 第一台机器的组合状态。

公开(公告)号：US12192824B2

公开(公告)日：2025-01-07

申请号：US18371050

申请日：2023-09-21

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Yanjun Sun ,  Hemanth Sampath ,  Bibhu Mohanty ,  Brian Michael Buesker ,  Yuan Zhou ,  Eric Vanbuhler ,  Danyang Cong ,  Raamkumar Balamurthi ,  Harshit Joshi ,  Vamsi Vegunta ,  Danny Jen ,  Nitin Ravinder

IPC: H04W28/02 ,  H04L5/00 ,  H04W8/24 ,  H04W74/08 ,  H04W74/0808

Abstract: This disclosure describes systems, devices, apparatus, and methods, including computer programs encoded on storage media, for controlling a network with one or more access points (APs). A controller may be configured to schedule at least some resources of the one or more APs to improve network efficiency. The APs may measure and report a variety of information and statistics to the controller. The controller may determine one or more transmission parameters and one or more operations a given AP is permitted to perform during a respective time interval. The controller may communicate the one or more transmission parameters using an indication, such as a message. At least one AP associated with the controller may communicate with stations (STAs) using the one or more transmission parameters.

公开(公告)号：US10999014B2

公开(公告)日：2021-05-04

申请号：US16536280

申请日：2019-08-08

Applicant: QUALCOMM Incorporated

Inventor： Bin Tian ,  Hemanth Sampath ,  Sameer Vermani ,  Lin Yang ,  Dung Ngoc Doan ,  Simone Merlin ,  Alfred Asterjadhi ,  Jialing Li Chen ,  Stephen Jay Shellhammer

IPC: H04L1/00 ,  H04L1/18 ,  H04W84/12

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for implementing a hybrid automatic repeat request (HARQ) protocol in a wireless local area network (WLAN). A station (STA) may send a HARQ transmission to another STA. The HARQ protocol may support the use of different types of feedback from the receiving STA to control the HARQ retransmission process. This disclosure provides example message formats to support HARQ transmission and HARQ feedback in a WLAN.

公开(公告)号：US10230497B2

公开(公告)日：2019-03-12

申请号：US14528520

申请日：2014-10-30

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Gwendolyn Denise Barriac ,  Hemanth Sampath

IPC: H04L1/16 ,  H04L5/00 ,  H04W4/06 ,  H04W72/00 ,  H04L1/00 ,  H04W88/08 ,  H04W84/12

Abstract: Certain aspects of the present disclosure provide methods and apparatus for multi user bar protocols and frames. According to certain aspects, an apparatus is provided for wireless communications. The apparatus generally includes a processing system configured to determine that a plurality of devices have a first capability and generate a multi-user (MU) packet that solicits an immediate response from a plurality of the devices, wherein the immediate response comprises an acknowledgment (ACK) or block ACK (BA) and an interface configured to output the MU packet for transmission.

公开(公告)号：US10225047B2

公开(公告)日：2019-03-05

申请号：US15007683

申请日：2016-01-27

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Alfred Asterjadhi ,  Hemanth Sampath

IPC: H04L12/28 ,  H04L1/16 ,  H04L12/18 ,  H04W4/06 ,  H04L1/00

Abstract: A method for wireless communications is disclosed that includes generating and interpreting multicast block acknowledgement frames. Group identifiers and apparatus identifiers are used for indicating the presence of aggregated acknowledgement information and for extracting acknowledgement information for individual stations.

公开(公告)号：US20180287830A1

公开(公告)日：2018-10-04

申请号：US15472073

申请日：2017-03-28

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Dung Ngoc Doan ,  Jialing Li Chen ,  Vinayak Chowdiah ,  Hemanth Sampath

IPC: H04L25/03 ,  H04L29/06 ,  H04W52/52 ,  H04B17/336

Abstract: This disclosure provides systems, methods and apparatuses for pre- and post-packet detection interference nulling. In some implementations, a method includes detecting at least a first part of an unscheduled Wi-Fi packet and performing a channel estimation. The method also may include estimating an interference on the Wi-Fi channel based on a known non-zero portion of the preamble of the Wi-Fi packet and nulling interference from the Wi-Fi channel during reception of at least a second part of the Wi-Fi packet. In some implementations, the method can determine an interference estimate based on at least one of a previously received packet or channel sampling for a Wi-Fi channel and computer a filter based at least in part on the interference estimate. The method also includes applying the filter to a received signal to null interference on the Wi-Fi channel at least before detection of a Wi-Fi packet.