公开(公告)号：US10652924B2

公开(公告)日：2020-05-12

申请号：US16039154

申请日：2018-07-18

Applicant: QUALCOMM Incorporated

Inventor： Maarten Menzo Wentink ,  Didier Johannes Richard Van Nee ,  Albert Van Zelst ,  Bin Tian ,  Hemanth Sampath

IPC: H04W74/08 ,  H04L1/18 ,  H04L27/26 ,  H04L5/00 ,  H04W28/26 ,  H04W52/02 ,  H04L27/00 ,  H04L1/00 ,  H04W84/12

Abstract: Systems and methods are disclosed for a wireless device to transmit or receive a channel busy time (CBT) to or from other devices in a wireless network. For transmitting, the wireless device may determine a CBT during which a wireless channel is to be occupied, generate a universal reservation signal (URS) indicating the CBT, and transmit on the wireless channel the URS to at least one other wireless device. For receiving, the wireless device may receive on a wireless channel a URS from a second wireless device, the URS configured to indicate the CBT. The wireless device may also refrain from attempting to transmit on the wireless channel during the CBT.

公开(公告)号：US10153933B2

公开(公告)日：2018-12-11

申请号：US15480643

申请日：2017-04-06

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/26 ,  H04W52/32 ,  H04W84/12 ,  H04B7/0413

Abstract: Techniques are provided for constructing or determining a training sequence as a part of transmission preamble to minimize (or at least reduce) a peak-to-average power ratio (PAPR) at a transmitting node. In one example, a long training field (LTF) sequence of a preamble is determined that combines a set of interpolating sequences with LTF tone values. The LTF tone values may cover at least a portion of bandwidth of a first size, with each of the LTF tone values repeated for different subcarriers. The phases of tones of the LTF sequence may be rotated per bandwidth of the first size and certain tones of the LTF sequence may have a stream of values at pilot locations. For example, the phases of tones of the LTF sequence may be rotated in an effort to reduce PAPR during a transmission of the LTF sequence.

公开(公告)号：US09497764B2

公开(公告)日：2016-11-15

申请号：US14330599

申请日：2014-07-14

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Didier Johannes Richard Van Nee ,  Bin Tian

IPC: H04W4/00 ,  H04W72/04 ,  H04W84/18 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04L25/03

CPC classification number: H04W72/0466 ,  H04L1/0041 ,  H04L1/007 ,  H04L1/0075 ,  H04L1/1812 ,  H04L5/0053 ,  H04L25/03866 ,  H04W84/18

Abstract: Systems, methods, and devices for communicating in a wireless network are provided. In one aspect, a method for wireless communication is provided. The method includes inserting a plurality of scrambler seeds into a data unit comprising a plurality of data portions, each scrambler seed associated with a respective data portion of the plurality of data portions. The method includes scrambling each data portion at least in part based on the associated scrambler seed. The method includes transmitting the data unit. The data portions may comprise code words or at least one media access control protocol data unit. The scrambler seed may be inserted in reserved bits of the delimiter field. The scrambler seed may be inserted in a delimiter signature field of the delimiter field.

Abstract translation: 提供了用于在无线网络中进行通信的系统，方法和设备。 一方面，提供一种无线通信方法。 该方法包括将多个加扰器种子插入到包括多个数据部分的数据单元中，每个扰频器种子与多个数据部分的相应数据部分相关联。 该方法包括至少部分地基于相关的扰频器种子对每个数据部分进行加扰。 该方法包括发送数据单元。 数据部分可以包括码字或至少一个媒体访问控制协议数据单元。 加扰器种子可以插入分隔符字段的保留位。 加扰器种子可以被插入到定界符字段的分隔符签名字段中。

公开(公告)号：US09439161B2

公开(公告)日：2016-09-06

申请号：US14332301

申请日：2014-07-15

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Rahul Tandra ,  Didier Johannes Richard Van Nee ,  Albert Van Zelst ,  Hemanth Sampath ,  Bin Tian

IPC: H04W4/00 ,  H04W56/00 ,  H04B7/04 ,  H04B7/06 ,  H04L27/26 ,  H04W84/12

CPC classification number: H04W56/0035 ,  H04B7/0404 ,  H04B7/0452 ,  H04B7/0684 ,  H04L5/0048 ,  H04L27/26 ,  H04L27/261 ,  H04L27/2613 ,  H04L27/2657 ,  H04W84/12

Abstract: Certain aspects of the present disclosure provide methods and apparatus for uplink (UL) multiuser multiple-input, multiple-output (MU-MIMO) transmissions in a High Efficiency WLAN (HEW) system. One example method generally includes generating a packet having a preamble portion and transmitting the packet. The preamble portion typically includes a long training field (LTF); a first signal (SIG) field subsequent to the LTF; one or more other LTFs located subsequent to the first SIG field; and at least one second SIG field, wherein all SIG fields in the preamble portion, other than the first SIG field, are subsequent to the one or more other LTFs. Another example method generally includes receiving, from an apparatus, a packet having a preamble portion comprising tone-interleaved LTFs; and performing frequency offset adjustment on the packet based on the tone-interleaved LTFs.

Abstract translation: 本公开的某些方面提供了在高效率WLAN（HEW）系统中用于上行链路（UL）多用户多输入多输出（MU-MIMO）传输的方法和装置。 一个示例性方法通常包括生成具有前导码部分并发送分组的分组。 前导码部分通常包括长训练场（LTF）; 在LTF之后的第一信号（SIG）字段; 位于第一SIG场之后的一个或多个其它LTF; 以及至少一个第二SIG字段，其中除了第一SIG字段之外的前导码部分中的所有SIG字段都在一个或多个其他LTF之后。 另一示例性方法通常包括从装置接收具有包括色调交织的LTF的前导码部分的分组; 并基于色调交织的LTF对分组进行频偏调整。

公开(公告)号：US20160197710A1

公开(公告)日：2016-07-07

申请号：US15069748

申请日：2016-03-14

Applicant: QUALCOMM Incorporated

Inventor： Vincent Knowles Jones, IV ,  Hemanth Sampath ,  Didier Johannes Richard Van Nee

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L1/0618 ,  H04L5/0007 ,  H04L27/2657 ,  H04L27/2675

Abstract: A communication device for enabling phase tracking is described. The communication device includes a processor and instructions stored in memory. The communication device generates a plurality of pilot symbols. The pilot symbols conform to a rank-deficient pilot mapping matrix. The communication device also transmits the plurality of pilot symbols.

Abstract translation: 描述了用于启用相位跟踪的通信装置。 通信设备包括处理器和存储在存储器中的指令。 通信装置生成多个导频符号。 导频符号符合秩缺陷导频映射矩阵。 通信装置还发送多个导频符号。

公开(公告)号：US09088504B2

公开(公告)日：2015-07-21

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: H04W4/00 ,  H04L12/24 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26

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：US20150180560A1

公开(公告)日：2015-06-25

申请号：US14637309

申请日：2015-03-03

Applicant: QUALCOMM Incorporated

Inventor： Didier Johannes Richard Van Nee ,  Albert Van Zelst ,  Sameer Vermani ,  Vincent Knowles Jones, IV ,  Simone Merlin

IPC: H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0452 ,  H04B7/0434 ,  H04B7/0615 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0697

Abstract: A base station for communicating with multiple groups of wireless communication devices is described. The base station includes a processor and executable instructions stored in memory that is in electronic communication with the processor. The base station determines a number of wireless communication devices. The base station also splits the number of wireless communication devices into groups. The base station further determines a precoding matrix for each group. The base station additionally transmits a beamformed signal to each group using the precoding matrix for each group.

Abstract translation: 描述了用于与多组无线通信设备进行通信的基站。 基站包括存储在与处理器电子通信的存储器中的处理器和可执行指令。 基站确定多个无线通信设备。 基站还将无线通信设备的数量分组。 基站进一步确定每个组的预编码矩阵。 基站使用每个组的预编码矩阵另外向每个组发送波束形成的信号。

公开(公告)号：US20140198872A1

公开(公告)日：2014-07-17

申请号：US13963669

申请日：2013-08-09

Applicant: QUALCOMM Incorporated

Inventor： Gwendolyn Denise Barriac ,  Hemanth Sampath ,  Santosh Paul Abraham ,  Rahul Tandra ,  Yan Zhou ,  Bin Tian ,  Sameer Vermani ,  Simone Merlin ,  Didier Johannes Richard Van Nee

IPC: H04W24/08

CPC classification number: H04W24/08 ,  H04L1/0002 ,  H04L1/1621 ,  H04L1/1829

Abstract: Systems, methods, and devices for detecting and managing the presence of bursty interference on a wireless communication system are disclosed. One aspect of the subject matter described in the disclosure provides a method of detecting the presence of bursty interference on a wireless network. The method includes receiving, at a wireless device, a message from a transmitting device. The method further includes determining whether the message includes errors caused by bursty interference. The method further includes suspending a channel tracking when bursty interference is detected. In an embodiment the method further includes reporting bursty interference to the transmitting device when bursty interference is detected.

Abstract translation: 公开了用于在无线通信系统上检测和管理突发干扰的存在的系统，方法和设备。 在本公开中描述的主题的一个方面提供了一种在无线网络上检测突发干扰的存在的方法。 该方法包括在无线设备处从发送设备接收消息。 该方法还包括确定消息是否包括由突发干扰引起的错误。 该方法还包括当检测到突发干扰时暂停信道跟踪。 在一个实施例中，该方法还包括在检测到突发干扰时向发送设备报告突发干扰。

公开(公告)号：US20130242963A1

公开(公告)日：2013-09-19

申请号：US13775796

申请日：2013-02-25

Applicant: QUALCOMM INCORPORATED

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

IPC: H04L27/26

CPC classification number: H04L27/2615 ,  H04L27/2613 ,  H04L27/2621

Abstract: Certain aspects of the present disclosure relate to techniques for constructing a long training field (LTF) sequence in a preamble to reduce a peak-to-average power ratio (PAPR) at a transmitter.

Abstract translation: 本公开的某些方面涉及在前导码中构造长训练场（LTF）序列以降低发射机的峰均功率比（PAPR）的技术。

公开(公告)号：US20130179755A1

公开(公告)日：2013-07-11

申请号：US13735747

申请日：2013-01-07

Applicant: QUALCOMM Incorporated

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

IPC: H03M13/13

CPC classification number: H03M13/13 ,  H04B7/0697 ,  H04L1/0033 ,  H04L1/0057 ,  H04L1/0071 ,  H04L27/2626 ,  H04L27/2627 ,  H04L27/2647

Abstract: This disclosure provides systems, methods, and apparatus, including non-transitory computer-readable medium for tone mapping an error correction code for 1 MHz OFDM transmission. In one aspect, a wireless communications apparatus is provided. The wireless communications apparatus includes a tone mapper configured to tone map at least error correction codeword to data tones of an orthogonal frequency-division multiplexing (OFDM) symbol based on an error correction code tone mapping distance selected from the group consisting of 2, 3, and 4. The OFDM symbol has twenty four data tones, at least one pilot tone, a DC tone, and at least one guard tone. The wireless communications apparatus further includes a transmit module configured to transmit the at least one tone mapped error correction codeword using about a 1 MHz OFDM transmission mode.

Abstract translation: 本公开提供了系统，方法和装置，包括用于1MHz OFDM传输的用于色调映射纠错码的非暂时计算机可读介质。 一方面，提供一种无线通信装置。 无线通信装置包括：色调映射器，被配置为基于从由2,3，...组成的组中选择的纠错码色调映射距离，至少将纠错码字调制到正交频分复用（OFDM）符号的数据音调， OFDM符号具有二十四个数据音调，至少一个导频音，直流音和至少一个保护音。 无线通信装置还包括被配置为使用大约1MHz的OFDM传输模式来发送所述至少一个色调映射的纠错码字的发送模块。