公开(公告)号：WO2015003119A1

公开(公告)日：2015-01-08

申请号：PCT/US2014/045383

申请日：2014-07-03

Applicant: QUALCOMM INCORPORATED

Inventor： VERMANI, Sameer ,  TIAN, Bin ,  VAN ZELST, Albert ,  VAN NEE, Didier Johannes Richard ,  TANDRA, Rahul ,  DOAN, Dung Ngoc ,  TIAN, Tao

IPC: H04W56/00 ,  H04W74/08 ,  H04L27/26 ,  H04L5/00 ,  H04W84/12

CPC classification number: H04L1/0072 ,  H04L1/0007 ,  H04L5/0053 ,  H04L27/2602 ,  H04L27/2657 ,  H04W56/0035 ,  H04W74/0808 ,  H04W84/12

Abstract: Aspects of the present disclosure provide example preamble formats with repeated signal (SIG) fields that may help provide backwards compatibility and help address the effects of larger delay spreads in various wireless bands (e.g., WiFi bands).

Abstract translation: 本公开的方面提供具有重复信号（SIG）字段的示例前导码格式，其可以帮助提供向后兼容性并且帮助解决在各种无线频带（例如，WiFi频带）中较大延迟扩展的影响。

公开(公告)号：WO2014003802A1

公开(公告)日：2014-01-03

申请号：PCT/US2012/053441

申请日：2012-08-31

Applicant: QUALCOMM Incorporated ,  KIM, Youhan ,  JONES, IV, Vincent Knowles ,  MERLIN, Simone ,  VAN ZELST, Albert ,  WENTINK, Maarten Menzo

Inventor： KIM, Youhan ,  JONES, IV, Vincent Knowles ,  MERLIN, Simone ,  VAN ZELST, Albert ,  WENTINK, Maarten Menzo

IPC: H04L1/00

CPC classification number: H04L27/00 ,  H04L1/0028 ,  H04L1/06

Abstract: Certain aspects of the present disclosure relate to a technique for communicating supported modulation coding schemes (MCS). In some aspects, the information indicating which MCS are supported for a first communication type is used in part to determine which MCS are supported for a second communication type.

Abstract translation: 本公开的某些方面涉及用于传送支持的调制编码方案（MCS）的技术。 在一些方面中，部分地使用指示为第一通信类型支持哪些MCS的信息来确定哪个MCS被支持用于第二通信类型。

公开(公告)号：WO2013184671A3

公开(公告)日：2013-12-12

申请号：PCT/US2013/044098

申请日：2013-06-04

Applicant: QUALCOMM INCORPORATED

Inventor： VAN ZELST, Albert ,  VAN NEE, Didier Johannes Richard

IPC: H04L27/26

Abstract: A communication device for transmitting a pilot sequence is described. The communication device includes pilot generation circuitry configured for generating a pilot sequence with a reduced peak-to-average power ratio contribution after rotation. The communication device also includes transmitter circuitry configured for transmitting the pilot sequence.

公开(公告)号：WO2013043891A1

公开(公告)日：2013-03-28

申请号：PCT/US2012/056367

申请日：2012-09-20

Applicant: QUALCOMM Incorporated ,  MERLIN, Simone ,  KIM, Youhan ,  VAN ZELST, Albert

Inventor： MERLIN, Simone ,  KIM, Youhan ,  VAN ZELST, Albert

IPC: H04W28/20 ,  H04W74/00

CPC classification number: H04W28/20 ,  H04W74/002

Abstract: Certain aspects of the present disclosure generally relate to apparatus and methods for switching operating bandwidth and/or operating channel in a wireless communications network. A transmitting STA may send an announcement of a switch to a particular bandwidth in a frame, wherein the presence of absence of a Secondary Chanel Offset Element and a Wide Bandwidth Channel Switch Element in the frame indicates whether the particular bandwidth belongs to a first or second set of operating bandwidths. The presence of the Secondary Channel Offset Element and a Wide Bandwidth Channel Switch Element in the frame may indicate a switch to the first set of operating bandwidths. The first set of operating bandwidths may include VHT channels including 80MHz only, 80+80MHz and 160 MHz channels. The absence of the Secondary Channel Offset Element and a Wide Bandwidth Channel Switch Element in the frame may indicate a switch to the second set of operating bandwidths. The second set of operating bandwidths may include 20MHz and 40MHz channels.

Abstract translation: 本公开的某些方面通常涉及用于在无线通信网络中切换操作带宽和/或操作信道的装置和方法。 发送STA可以向帧中的特定带宽发送交换机的通知，其中在帧中不存在辅助香奈尔偏移元素和宽带宽信道切换元素指示特定带宽是否属于第一或第二 一组工作带宽。 帧中的次级信道偏移元素和宽带宽信道切换元件的存在可以指示切换到第一组工作带宽。 第一组工作带宽可能包括仅包括80MHz，80 + 80MHz和160MHz信道的VHT信道。 帧中的次级信道偏移元素和宽带宽信道切换元件的缺失可以指示切换到第二组操作带宽。 第二组工作带宽可能包括20MHz和40MHz频道。

公开(公告)号：WO2012167193A2

公开(公告)日：2012-12-06

申请号：PCT/US2012/040600

申请日：2012-06-01

Applicant: QUALCOMM INCORPORATED ,  WENTINK, Maarten, Menzo ,  VAN ZELST, Albert

Inventor： WENTINK, Maarten, Menzo ,  VAN ZELST, Albert

IPC: H04W28/26 ,  H04W76/02

CPC classification number: H04W24/02 ,  H04W28/26 ,  H04W76/10

Abstract: Systems, methods, and devices for performing clear channel assessment at a receiving device are described herein. In some aspects, the receiving device determines whether it is the intended receiver for a data transmission. Upon determining it is the intended receiver, the receiving device transmits a reservation signal. Devices in the vicinity of the receiving device are configured to listen for the reservation signal and refrain from transmitting interfering signals to the receiving device based on the reservation signal.

Abstract translation: 这里描述了用于在接收设备处执行清晰信道评估的系统，方法和设备。 在一些方面，接收设备确定是否是用于数据传输的预期接收机。 在确定它是预期的接收机时，接收设备发送预约信号。 接收设备附近的设备被配置为监听预留信号，并且基于预约信号避免向接收设备发送干扰信号。

公开(公告)号：WO2012033929A1

公开(公告)日：2012-03-15

申请号：PCT/US2011/050851

申请日：2011-09-08

Applicant: QUALCOMM INCORPORATED ,  VERMANI, Sameer ,  TANDRA, Rahul ,  VAN ZELST, Albert ,  VAN NEE, Didier, Johannes, Richard ,  SAMPATH, Hemanth ,  JONES, Vincent, K., IV

Inventor： VERMANI, Sameer ,  TANDRA, Rahul ,  VAN ZELST, Albert ,  VAN NEE, Didier, Johannes, Richard ,  SAMPATH, Hemanth ,  JONES, Vincent, K., IV

IPC: H04B7/06 ,  H04B7/04 ,  H04L27/26

CPC classification number: H04B7/0634 ,  H04B7/0452 ,  H04B7/066 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0064 ,  H04L25/0248 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03808

Abstract: Certain aspects of the present disclosure relate to techniques for transmitting sounding feedback in Very High Throughput (VHT) wireless systems. The sounding feedback may be transmitted from a user station (STA), wherein the feedback may comprise a certain number of beamforming matrices and a certain number of singular values of a wireless channel associated with the STA. Further, the sounding feedback may comprise a bit for indicating whether this feedback represents a Single-User (SU) feedback or a Multi-User (MU) feedback.

Abstract translation: 本公开的某些方面涉及用于在超高吞吐量（VHT）无线系统中传输探测反馈的技术。 探测反馈可以从用户站（STA）发送，其中反馈可以包括一定数量的波束成形矩阵和与STA相关联的无线信道的一定数量的奇异值。 此外，探测反馈可以包括用于指示该反馈是表示单用户（SU）反馈还是多用户（MU））反馈的位。

公开(公告)号：WO2012030833A1

公开(公告)日：2012-03-08

申请号：PCT/US2011/049752

申请日：2011-08-30

Applicant: QUALCOMM INCORPORATED ,  MERLIN, Simone ,  VAN NEE, Didier, Johannes, Richard ,  VAN ZELST, Albert

Inventor： MERLIN, Simone ,  VAN NEE, Didier, Johannes, Richard ,  VAN ZELST, Albert

IPC: H04B7/06

CPC classification number: H04B7/0617 ,  H04B7/0619 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0228 ,  H04L25/03159 ,  H04L25/03343 ,  H04L27/2657 ,  H04L27/2675 ,  H04L2025/03783 ,  H04L2025/03808

Abstract: A communication device for transmitting beamformed signals using implicit channel sounding is described. The communication device includes a processor and instructions stored in memory. The communication device receives one or more sounding signals and computes a channel estimate based on the one or more sounding signals. Frequency offset compensation is applied to the channel estimate by the communication device. The communication device also computes a precoding matrix based on the channel estimate and transmits a beamformed signal using the precoding matrix. Another communication device for receiving beamformed signals using explicit channel sounding is also described. The communication device includes a processor and instructions stored in memory. The communication device receives one or more sounding signals, computes a channel estimate based on the one or more sounding signals and applies amplitude compensation to the channel estimate. The communication device also sends estimated channel data and receives a beamformed signal.

Abstract translation: 描述了使用隐式信道探测发送波束形成信号的通信设备。 通信设备包括处理器和存储在存储器中的指令。 通信设备接收一个或多个探测信号，并且基于一个或多个探测信号来计算信道估计。 频率偏移补偿被通信装置应用于信道估计。 通信设备还基于信道估计来计算预编码矩阵，并使用预编码矩阵发送波束形成的信号。 还描述了使用显式通道探测接收波束形成信号的另一通信设备。 通信设备包括处理器和存储在存储器中的指令。 通信设备接收一个或多个探测信号，基于一个或多个探测信号计算信道估计，并对信道估计应用振幅补偿。 通信设备还发送估计的信道数据并接收波束形成的信号。

公开(公告)号：WO2011153335A1

公开(公告)日：2011-12-08

申请号：PCT/US2011/038908

申请日：2011-06-02

Applicant: QUALCOMM INCORPORATED ,  VAN NEE, Didier Johannes Richard ,  VAN ZELST, Albert ,  MERLIN, Simone ,  SAMPATH, Hemanth

Inventor： VAN NEE, Didier Johannes Richard ,  VAN ZELST, Albert ,  MERLIN, Simone ,  SAMPATH, Hemanth

IPC: H04L27/26

CPC classification number: H04L27/2613

Abstract: Methods and apparatus for transmitting and receiving frames with various Very High Throughput Signal B (VHT-SIG-B) and Service field formats are provided. Some of these formats may be in accordance with the IEEE 802.11ac amendment to the wireless local area network (WLAN) standard.

Abstract translation: 提供了用各种超高吞吐量信号B（VHT-SIG-B）和服务字段格式发送和接收帧的方法和装置。 这些格式中的一些可能符合IEEE 802.11ac对无线局域网（WLAN）标准的修改。

公开(公告)号：WO2011057009A2

公开(公告)日：2011-05-12

申请号：PCT/US2010/055503

申请日：2010-11-04

Applicant: QUALCOMM INCORPORATED ,  SAMPATH, Hemanth ,  VAN NEE, Richard ,  VAN ZELST, Albert ,  AWATER, Geert, Arnout

Inventor： SAMPATH, Hemanth ,  VAN NEE, Richard ,  VAN ZELST, Albert ,  AWATER, Geert, Arnout

IPC: H04W72/12

CPC classification number: H04L1/0028 ,  H04B7/0413 ,  H04L1/02

Abstract: Certain aspects of the present disclosure present a technique for designing a signal (SIG) field of a mixed mode preamble transmitted to a plurality of user terminals. The SIG field can signal a number of spatial streams assigned to each user. The SIG field is designed such that a robust interference cancellation can be achieved at each user terminal.

Abstract translation: 本公开的某些方面提出了用于设计发送到多个用户终端的混合模式前导码的信号（SIG）字段的技术。 SIG字段可以用信号发送分配给每个用户的多个空间流。 SIG字段的设计使得每个用户终端都可以实现强大的干扰消除功能。

公开(公告)号：WO2010093919A2

公开(公告)日：2010-08-19

申请号：PCT/US2010/024097

申请日：2010-02-12

Applicant: QUALCOMM INCORPORATED ,  WENTINK, Maarten, Menzo ,  VAN NEE, Didier, Johannes Richard ,  VAN ZELST, Albert

Inventor： WENTINK, Maarten, Menzo ,  VAN NEE, Didier, Johannes Richard ,  VAN ZELST, Albert

CPC classification number: H04B7/0697 ,  H04B7/0452 ,  H04B7/0617

Abstract: Embodiments of the present disclosure generally relate to communication, and more specifically to distributed multiple-input multiple-output (MIMO) systems.

Abstract translation: 本公开的实施例通常涉及通信，更具体地涉及分布式多输入多输出（MIMO）系统。