公开(公告)号：US20160262050A1

公开(公告)日：2016-09-08

申请号：US15052808

申请日：2016-02-24

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Youhan Kim ,  Bin Tian ,  George Cherian ,  Sameer Vermani ,  Alfred Asterjadhi

IPC: H04W28/06 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W28/06 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0057 ,  H04W72/0413 ,  H04W84/12

Abstract: Methods and apparatus for channel state information sounding and feedback are provided. In an aspects, a first message is transmitted to one or more wireless communication devices requesting channel state information. In accordance with this aspects, the first message comprises a header and a payload, the header comprising a plurality of fields of a first field type which are useable to determine the channel state information, and the payload comprising parameters for estimating the channel state information. In certain aspects, the channel state information parameters are also provided in the header of the first message. In various aspects a second message comprising the channel state information is received from the one or more wireless communication devices. In one aspect, the first message is a physical layer convergence protocol data unit (PPDU), and the first field type is a long training field (LTF).

Abstract translation: 提供了通道状态信息探测和反馈的方法和装置。 在一方面，第一消息被发送到请求信道状态信息的一个或多个无线通信设备。 根据该方面，第一消息包括报头和有效载荷，该报头包括可用于确定信道状态信息的第一字段类型的多个字段，并且该有效载荷包括用于估计信道状态信息的参数。 在某些方面，信道状态信息参数也被提供在第一消息的报头中。 在各个方面，从一个或多个无线通信设备接收包括信道状态信息的第二消息。 在一个方面，第一个消息是一个物理层汇聚协议数据单元（PPDU），第​​一个字段类型是长训练字段（LTF）。

公开(公告)号：US20160227436A1

公开(公告)日：2016-08-04

申请号：US15013959

申请日：2016-02-02

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Bin Tian ,  Tao Tian

IPC: H04W28/06 ,  H04L29/06

CPC classification number: H04W28/06 ,  H04L1/08 ,  H04L69/22 ,  H04L2001/0093

Abstract: A method of wirelessly communicating includes generating, at a wireless device, a packet including a first preamble field. The method further includes generating a first repeated preamble field by multiplying the first preamble field by a first frequency-domain polarity sequence. The method further includes transmitting the packet from the wireless device. The packet includes the first preamble field and the first repeated preamble field.

Abstract translation: 无线通信的方法包括在无线设备处生成包括第一前同步码字段的分组。 该方法还包括通过将第一前同步码乘以第一频域极性序列来产生第一重复前同步码字段。 该方法还包括从无线设备发送分组。 分组包括第一前同步码字段和第一重复前导字段。

公开(公告)号：US09351176B2

公开(公告)日：2016-05-24

申请号：US13735937

申请日：2013-01-07

Applicant: Qualcomm Incorporated

Inventor： Tao Tian ,  Sameer Vermani ,  Lin Yang ,  Albert van Zelst

IPC: H04W24/02 ,  H04W52/02 ,  H04W72/04 ,  H04L25/02 ,  H04L25/03

CPC classification number: H04W24/02 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/03159 ,  H04W52/0209 ,  H04W72/042

Abstract: A method and apparatus for tracking amplitude and phase of a received low frequency signal comprising a walking pilot signal is disclosed, wherein the pilot signal changes in frequency a number of times according to a sequence that repeats. The design includes initializing a FIFO buffer and summing estimated channel power over the sequence to determine an initial total power. The design also includes, for a new received symbol, determining an updated power estimate for the new received symbol, placing the updated power estimate in the FIFO buffer, and removing a least current value from the FIFO buffer, and estimating amplitude of the signal using a sum of all updated power estimates in the FIFO buffer divided by the initial total power. The design may further include determining a delta phase value using maximum ratio combining scaled with a scaling factor.

Abstract translation: 公开了一种用于跟踪包括步行导频信号的接收低频信号的幅度和相位的方法和装置，其中导频信号根据重复的顺序频率改变多次。 该设计包括初始化FIFO缓冲器并对序列上的估计信道功率求和以确定初始总功率。 该设计还包括对于新的接收符号，确定新的接收符号的更新的功率估计，将更新的功率估计放置在FIFO缓冲器中，以及从FIFO缓冲器中去除最小电流值，以及使用 FIFO缓冲器中所有更新的功率估计值除以初始总功率的总和。 该设计可以进一步包括使用用比例因子缩放的最大比率组合来确定增量相位值。

公开(公告)号：US09344238B2

公开(公告)日：2016-05-17

申请号：US14250251

申请日：2014-04-10

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04L5/00 ,  H04L27/26 ,  H04W56/00

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 transmitting on a wireless communication network. The method includes transmitting to one or more first devices in a first portion of a bandwidth, the one or more first devices having a first set of capabilities, simultaneously transmitting to one or more second devices in a second portion of the bandwidth, the one or more second devices having a second set of capabilities, and wherein the transmission comprises a preamble which includes an indication for devices with the second set of capabilities to locate a frequency band in the bandwidth for symbols containing a set of transmission parameters for devices with the second set of capabilities, and where the indication is sent so as to have no substantial impact on a preamble decoding of devices with the first set of capabilities.

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在无线通信网络上进行发送的方法。 所述方法包括向带宽的第一部分中的一个或多个第一设备发送，所述一个或多个第一设备具有第一组能力，同时向所述带宽的第二部分中的一个或多个第二设备发送所述一个或多个 具有第二组能力的更多第二设备，并且其中所述传输包括前导码，其包括具有所述第二组能力的设备的指示，以在所述带宽中定位用于具有所述第二设备的设备的传输参数集合的符号的频带 一组功能，以及发送指示的位置，对具有第一组能力的设备的前导码解码没有实质影响。

公开(公告)号：US20160073409A1

公开(公告)日：2016-03-10

申请号：US14848068

申请日：2015-09-08

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li Chen ,  Lin Yang ,  Sameer Vermani ,  Bin Tian

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0453 ,  H04L5/0007 ,  H04L5/0037

Abstract: Methods and apparatus for signaling tone allocations in OFDMA communication are disclosed herein. In one aspect, the method includes determining a tone allocation which divides a plurality of tones between a plurality of wireless communication devices, the tone allocation including at least one of determining a plurality of subbands, each subband comprising an exclusive contiguous subset of the plurality of tones, at least one subband of the plurality of subbands assigned to two or more devices of the plurality of wireless communication and assigning a tone group size to each wireless communication device of the plurality of wireless communication devices, wherein the tone group size indicates a number of contiguous tones that the wireless communication device is allocated, wherein at least one tone group size is larger than one. The method also includes transmitting the tone allocation to each of the plurality of wireless communication devices.

Abstract translation: 本文公开了OFDMA通信中用于信令音分配的方法和装置。 在一个方面，该方法包括确定在多个无线通信设备之间划分多个音调的音调分配，该音调分配包括确定多个子带中的至少一个，每个子带包括多个子带的排他连续子集 分配给所述多个无线通信中的两个或多个设备的所述多个子带中的至少一个子带，并且向所述多个无线通信设备的每个无线通信设备分配音调组大小，其中所述音调组大小指示数字 无线通信设备被分配的连续音调，其中至少一个音调组大小大于1。 该方法还包括将音调分配发送到多个无线通信设备中的每一个。

公开(公告)号：US09276795B2

公开(公告)日：2016-03-01

申请号：US14258627

申请日：2014-04-22

Applicant: Qualcomm Incorporated

Inventor： Sameer Vermani ,  Santosh Paul Abraham ,  Vincent Knowles Jones, IV ,  Stephen Jay Shellhammer ,  Didier Johannes Richard Van Nee ,  Rahul Tandra ,  Albert Van Zelst

IPC: H04L27/06 ,  H04L27/26 ,  H04W16/14

CPC classification number: H04L27/2649 ,  H04L5/0048 ,  H04L27/0006 ,  H04L27/2613 ,  H04L27/2634 ,  H04L27/2666 ,  H04W16/14

Abstract: Methods, systems, and/or devices are provided that permit data transmissions over unused television channels. A method operational in a receiver device, includes monitoring one or more repurposed channels within a television broadcast frequency spectrum for data waveforms, wherein waveforms of different bandwidths coexist within the one or more repurposed channels, and at least a larger waveform has a first bandwidth larger than a channel bandwidth for each repurposed channel. The method also includes receiving a waveform over a repurposed channel from among the one or more repurposed channels, wherein the received waveform has a second bandwidth smaller than the channel bandwidth. The method further includes processing the received waveform by applying a downclocking factor to a clock of the receiver device that causes the receiver device to process the received waveform according to the second bandwidth to obtain a data payload from the received waveform.

Abstract translation: 提供允许在未使用的电视频道上进行数据传输的方法，系统和/或设备。 一种在接收机设备中操作的方法，包括监测用于数据波形的电视广播频谱内的一个或多个重用信道，其中不同带宽的波形在一个或多个重用信道中共存，并且至少较大的波形具有较大的第一带宽 比每个重用通道的通道带宽。 该方法还包括从一个或多个重新利用的信道中的经重用信道接收波形，其中所接收的波形具有小于信道带宽的第二带宽。 该方法还包括通过对接收机设备的时钟施加降频因子来处理所接收的波形，所述时钟使得接收机设备根据第二带宽处理接收到的波形，以从接收到的波形获得数据有效载荷。

公开(公告)号：US20160029397A1

公开(公告)日：2016-01-28

申请号：US14805347

申请日：2015-07-21

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li Chen ,  Lin Yang ,  Bin Tian ,  Sameer Vermani ,  Rahul Tandra

IPC: H04W72/08 ,  H04L1/00 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04W72/082 ,  H04L1/0057 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/0048 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0486

Abstract: Methods and apparatuses for providing wireless messages according to various tone plans can include a system including a memory that stores instructions. The system further includes a processor coupled with the memory. The processor is configured to execute the instructions to generate a message for wireless communication according to at least one of a set of 52 tones, for allocation to an individual device, including 48 data tones and 4 pilot tones, and a set of 106 tones, for allocation to an individual device, including 102 data tones and 4 pilot tones. The processor is further configured to execute the instructions to provide the message for transmission.

Abstract translation: 用于根据各种音调计划提供无线消息的方法和装置可以包括包括存储指令的存储器的系统。 该系统还包括与存储器耦合的处理器。 处理器被配置为执行指令以根据52个音调的集合中的至少一个生成用于无线通信的消息，用于分配给单个设备，包括48个数据音调和4个导频音调以及一组106个音调， 用于分配到单个设备，包括102个数据音和4个导频音。 处理器还被配置为执行指令以提供用于传输的消息。

公开(公告)号：US09210611B2

公开(公告)日：2015-12-08

申请号：US14471537

申请日：2014-08-28

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Mohammad Hossein Taghavi Nasrabadi ,  Simone Merlin ,  Santosh Paul Abraham

IPC: H04W40/02 ,  H04W28/06 ,  H04L1/00 ,  H04L27/26 ,  H04L12/741 ,  H04L5/00

CPC classification number: H04W28/06 ,  H04L1/0079 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0053 ,  H04L27/2602 ,  H04L45/74 ,  H04W40/02

Abstract: A method includes generating, at a second wireless device, a signal (SIG) unit to be transmitted to a first wireless device. The SIG unit includes a length field and an aggregation field. In response to determining to use aggregated transmission to the first wireless device, the method further includes setting the aggregation field to a first value and setting the length field to a number of symbols. In response to determining not to use the aggregated transmission to the first wireless device, the method further includes setting the aggregation field to a second value and setting the length field to a number of bytes.

Abstract translation: 一种方法包括在第二无线设备处生成要发送到第一无线设备的信号（SIG）单元。 SIG单元包括长度字段和聚合字段。 响应于确定使用到第一无线设备的聚合传输，该方法还包括将聚合字段设置为第一值并将长度字段设置为多个符号。 响应于确定不使用到第一无线设备的聚合传输，该方法还包括将聚合字段设置为第二值并将长度字段设置为多个字节。

公开(公告)号：US20150333812A1

公开(公告)日：2015-11-19

申请号：US14805773

申请日：2015-07-22

Applicant: QUALCOMM Incorporated

Inventor： Gregory Breit ,  Santosh Abraham ,  Sameer Vermani ,  Hemanth Sampath ,  Vincent Knowles Jones, IV

IPC: H04B7/06 ,  H04B7/04 ,  H04W72/04

CPC classification number: H04B7/0626 ,  H04B7/0413 ,  H04L1/0027 ,  H04L1/003 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0222 ,  H04L25/0228 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08

Abstract: Certain aspects of the present disclosure relate to techniques for achieving adaptive channel state information (CSI) feedback rate in multi-user communication systems. A rate by which CSI feedback can be transmitted from each user station of a wireless system to a serving access point may be adjusted based on evolution of a channel between that user station and the access point.

Abstract translation: 本公开的某些方面涉及用于在多用户通信系统中实现自适应信道状态信息（CSI）反馈速率的技术。 基于无线系统的每个用户站向服务接入点发送CSI反馈的速率可以基于该用户站与接入点之间的信道的演进来调整。

公开(公告)号：US20150326408A1

公开(公告)日：2015-11-12

申请号：US14702558

申请日：2015-05-01

Applicant: QUALCOMM Incorporated

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

IPC: H04L25/02 ,  H04L1/06

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 one or more space-time-streams, the preamble including one or more training fields configured to be used for channel estimation, the one or more training fields each comprising one or more symbols of a first symbol duration. The method further includes transmitting a payload of the packet over the one or more space-time-streams, the payload comprising one or more symbols of a second symbol duration, the second symbol duration greater than the first symbol duration.

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。 该方法包括通过一个或多个空时流发送分组的前同步码，该前导码包括被配置为用于信道估计的一个或多个训练场，所述一个或多个训练场包括一个或多个第一 符号持续时间。 该方法还包括通过一个或多个空时流发送分组的有效载荷，所述有效载荷包括第二符号持续时间的第一符号持续时间，第二符号持续时间大于第一符号持续时间。