公开(公告)号：US09844028B2

公开(公告)日：2017-12-12

申请号：US14825944

申请日：2015-08-13

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W72/02

CPC classification number: H04W72/02 ,  H04L1/0041 ,  H04L27/2602 ,  H04W72/04

Abstract: Methods and apparatus for providing wireless messages according to various tone plans can include, for example, a method of wireless communication. The method includes selecting at least one of a 242-tone resource unit (RU), associated with a 256-tone plan including 234 data tones, 8 pilot tones, 3 direct current tones, and 11 edge tones, for transmission over a 20 MHz bandwidth, or a 484-tone RU, associated with a 512-tone plan including 468 data tones, 16 pilot tones, 5 direct current tones, and 23 edge tones, for transmission over a 40 MHz bandwidth. The method further includes providing a message for transmission according to the 256-tone plan or 512-tone plan.

公开(公告)号：US09819477B2

公开(公告)日：2017-11-14

申请号：US14701250

申请日：2015-04-30

Applicant: QUALCOMM Incorporated

Inventor： Olaf Josef Hirsch ,  Guido Robert Frederiks ,  Zhanfeng Jia ,  Youhan Kim ,  Yixiang Li ,  Ning Zhang

IPC: H04L5/14 ,  H04W72/04 ,  H04B1/44 ,  H04W52/24 ,  H04W52/52 ,  H04W72/08

CPC classification number: H04L5/1461 ,  H04B1/44 ,  H04W52/243 ,  H04W52/52 ,  H04W72/0446 ,  H04W72/0473 ,  H04W72/082

Abstract: A method and apparatus for concurrent wireless communications on multiple channels of the same frequency band. A wireless device determines when a first transceiver chain of the wireless device is to receive a first data signal. The wireless device then transmits a second data signal via a second transceiver chain of the wireless device based at least in part on the determination. The wireless device further suspends the transmission of the second data signal in response to the determination that the first transceiver chain is to receive the first data signal.

公开(公告)号：US20170303275A1

公开(公告)日：2017-10-19

申请号：US15486083

申请日：2017-04-12

Applicant: QUALCOMM Incorporated

Inventor： Raja Banerjea ,  Michael Richard Green ,  Bin Tian ,  Vincent Knowles Jones, IV ,  Youhan Kim ,  Sameer Vermani

IPC: H04W72/04 ,  H04L5/00 ,  H04B1/713 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04W72/0446 ,  H04B1/713 ,  H04L5/0007 ,  H04W84/12 ,  H04W88/08

Abstract: Method and systems are disclosed for qualifying a wireless device as frequency hopping device. In some aspects, an access point (AP) may determine a frequency hopping pattern for the wireless device, and then allocate a sequence of unique resource units to the wireless device based on the frequency hopping pattern. Each of the unique resource units include a different set of frequency subcarriers. The AP may receive a series of uplink orthogonal frequency-division multiple access (OFDMA) transmissions from the wireless device on the allocated sequence of unique resource units.

公开(公告)号：US20170279507A1

公开(公告)日：2017-09-28

申请号：US15470500

申请日：2017-03-27

Applicant: QUALCOMM Incorporated

Inventor： Beomsup Kim ,  Ning Zhang ,  Xiaoxin Zhang ,  Youhan Kim

IPC: H04B7/0456 ,  H04L25/02 ,  H04B17/327 ,  H04B7/06 ,  H04B7/08

CPC classification number: H04B7/0456 ,  H04B7/0617 ,  H04B7/0691 ,  H04B7/0865 ,  H04B7/0874 ,  H04B17/327 ,  H04L25/0202 ,  H04W84/12 ,  H04W88/08

Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may switch antenna array configurations during reception of a packet to determine channel characteristic information for the antenna array configurations. The AP may use the channel characteristic information to select an antenna array configuration for use, and to determine a beamforming steering matrix for the selected antenna array configuration. In some cases, the AP may use multiple antenna array configurations to transmit training fields in the preamble of a packet. The AP may receive channel characteristic information for each of the antenna array configurations. The AP may use the channel characteristic information to select an antenna array configuration for use, and to determine a beamforming steering matrix for the selected antenna array configuration.

公开(公告)号：US20160330759A1

公开(公告)日：2016-11-10

申请号：US14706307

申请日：2015-05-07

Applicant: QUALCOMM Incorporated

Inventor： Olaf Josef Hirsch ,  James Simon Cho ,  Simone Merlin ,  Youhan Kim ,  Guido Robert Frederiks ,  Jibing Wang

IPC: H04W72/12 ,  H04L29/06 ,  H04L12/743 ,  H04W74/08

CPC classification number: H04W72/1278 ,  H04L45/7453 ,  H04L69/22 ,  H04W72/1215 ,  H04W72/1236 ,  H04W74/0816 ,  H04W84/12

Abstract: Methods, systems, and devices are described for wireless communication. A wireless device may identify an upcoming interference period, determine a receive end time based on when the interference period will begin to disrupt incoming messages, and transmit a scheduling outlook message to a transmitter to schedule around the interference in response to receiving a packet (request-to-send (RTS) or data). The wireless device may hash a receiver address (RA) associated with the packet exchange message such as a clear-to-send message or a block acknowledgement to make room for the scheduling outlook message. An example scheduling outlook field (in the place of the full RA field) may include a shortened RA, a number of supported spatial streams, a supported bandwidth, a set of tone allocation units (TAUs), a receive end time (or receive duration), and an interference level.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 无线设备可以识别即将到来的干扰周期，基于干扰周期何时开始中断输入消息来确定接收结束时间，并且响应于接收到分组（请求）向发射机发送调度外观消息以调度干扰 发送（RTS）或数据）。 无线设备可以将与分组交换消息相关联的接收器地址（RA）哈希，例如清除发送消息或块确认，以为调度前景消息腾出空间。 示例性调度展望字段（在整个RA字段的地方）可以包括缩短的RA，支持的空间流的数量，支持的带宽，一组音调分配单元（TAU），接收结束时间（或接收持续时间 ）和干扰电平。

公开(公告)号：US20160323089A1

公开(公告)日：2016-11-03

申请号：US14701250

申请日：2015-04-30

Applicant: QUALCOMM Incorporated

Inventor： Olaf Josef Hirsch ,  Guido Robert Frederiks ,  Zhanfeng Jia ,  Youhan Kim ,  Yixiang Li ,  Ning Zhang

IPC: H04L5/14 ,  H04W52/52 ,  H04W52/24 ,  H04B1/44

CPC classification number: H04L5/1461 ,  H04B1/44 ,  H04W52/243 ,  H04W52/52 ,  H04W72/0446 ,  H04W72/0473 ,  H04W72/082

Abstract: A method and apparatus for concurrent wireless communications on multiple channels of the same frequency band. A wireless device determines when a first transceiver chain of the wireless device is to receive a first data signal. The wireless device then transmits a second data signal via a second transceiver chain of the wireless device based at least in part on the determination. The wireless device further suspends the transmission of the second data signal in response to the determination that the first transceiver chain is to receive the first data signal.

Abstract translation: 一种在相同频带的多个信道上进行并发无线通信的方法和装置。 无线设备确定无线设备的第一收发器链何时接收第一数据信号。 然后，无线设备至少部分地基于确定，经由无线设备的第二收发器链发送第二数据信号。 无线设备响应于第一收发器链将要接收第一数据信号的确定，进一步中止第二数据信号的发送。

公开(公告)号：US20160302104A1

公开(公告)日：2016-10-13

申请号：US15092467

申请日：2016-04-06

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Youhan Kim ,  Vishvabhusan Pati ,  Bin Tian ,  Sameer Vermani

IPC: H04W28/06

CPC classification number: H04W28/06 ,  H04L1/0042 ,  H04L1/1685

Abstract: A wireless device may selectively add padding to an end of a data transmission in order to provide adequate time for a receiving device to process the transmitted data and transmit feedback related to the transmitted data. A wireless device may identify a total amount of data capable of being transmitted in a transmission, and determine a number of data bits to be transmitted in the transmission. An amount of padding may be selected based on a proportion of the total amount of data capable of being transmitted and the number of data bits. In some examples, a preamble for a feedback transmission may be transmitted concurrently with processing of the received transmission.

Abstract translation: 无线设备可以选择性地将填充添加到数据传输的结尾，以便为接收设备提供足够的时间来处理所发送的数据并发送与所发送的数据相关的反馈。 无线设备可以识别能够在传输中发送的数据的总量，并且确定要在传输中传输的数据位的数量。 可以基于能够发送的数据的总量的比例和数据比特数来选择填充量。 在一些示例中，用于反馈传输的前导码可以与所接收的传输的处理同时发送。

公开(公告)号：US20160081054A1

公开(公告)日：2016-03-17

申请号：US14837775

申请日：2015-08-27

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxin Zhang ,  Ning Zhang ,  Carlos Horacio Aldana ,  Youhan Kim ,  Praveen Dua ,  Meghna Agrawal

IPC: H04W64/00 ,  H04L5/00 ,  H04W52/02 ,  H04W24/10 ,  H04L12/841

CPC classification number: H04W64/00 ,  H04L5/0055 ,  H04L47/283 ,  H04W24/00 ,  H04W52/0209 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22

Abstract: A ranging operation between a first wireless device and a second wireless may be performed by: sending, to the second wireless device, a data frame including a request for the second wireless device to report its actual SIFS duration to the first wireless device; determining a time of departure (TOD) of the data frame; receiving, from the second wireless device, a response frame including SIFS information indicative of the actual SIFS duration of the second wireless device; determining a time of arrival (TOA) of the response frame; and determining a round trip time (RTT) of the data frame and the response frame using the TOD of the data frame, the TOA of the response frame, and the actual SIFS duration of the second wireless device.

Abstract translation: 可以通过以下步骤来执行第一无线设备和第二无线设备之间的测距操作：向第二无线设备发送包括对第二无线设备向第一无线设备报告其实际SIFS持续时间的请求的数据帧; 确定数据帧的出发时间（TOD）; 从所述第二无线设备接收包括指示所述第二无线设备的实际SIFS持续时间的SIFS信息的响应帧; 确定响应帧的到达时间（TOA）; 以及使用数据帧的TOD，响应帧的TOA和第二无线设备的实际SIFS持续时间来确定数据帧和响应帧的往返时间（RTT）。

公开(公告)号：US12250105B2

公开(公告)日：2025-03-11

申请号：US18390180

申请日：2023-12-20

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay Shellhammer ,  Bin Tian ,  Alireza Raissinia ,  Youhan Kim

IPC: H04L27/26 ,  H04B7/0452 ,  H04L5/00

Abstract: This disclosure provides methods, devices and systems for generating a secure long training field (LTF). In some implementations, the secure LTF may include a randomized bit sequence that is difficult, if not impossible, to replicate by any device other than the transmitting device and the intended receiving device. For example, the transmitting device may use a block cipher or stream cipher to generate a pseudorandom bit sequence and may select a subset of bits of the pseudorandom bit sequence to be mapped to a sequence of modulation symbols representing an LTF symbol of the secure LTF. More specifically, each of the modulation symbols is mapped to a respective one of a number of subcarriers spanning a bandwidth of the secure LTF. The transmitting device may further transmit a physical layer convergence protocol (PLCP) protocol data unit (PPDU) that includes the secure LTF to the receiving device.

公开(公告)号：US12192036B2

公开(公告)日：2025-01-07

申请号：US18480666

申请日：2023-10-04

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Youhan Kim ,  Jialing Li Chen

IPC: H04L27/26 ,  H04W84/12

Abstract: This disclosure provides methods, devices and systems for increasing carrier frequencies for wireless communications in wireless local area networks (WLANs). Some implementations more specifically relate to packet designs and numerologies that support wireless communications on carrier frequencies above 7 GHz. In some aspects, a wireless communication device may up-clock a physical layer (PHY) convergence protocol (PLCP) protocol data unit (PPDU) for transmission on carrier frequencies above 7 GHz, where the PPDU conforms to an existing PPDU format associated with carrier frequencies below 7 GHz. As used herein, the term “up-clocking” refers to increasing the frequency of a clock signal used to convert the PPDU between the frequency domain and the time domain. In some aspects, the up-clocking may result in a subcarrier spacing (SCS) greater than or equal to 1.2 MHz, where the SCS represents a spacing between the subcarriers on which a PHY preamble of the PPDU is modulated.