公开(公告)号：WO2016175991A1

公开(公告)日：2016-11-03

申请号：PCT/US2016/026069

申请日：2016-04-05

Applicant: QUALCOMM INCORPORATED

Inventor： HIRSCH, Olaf Josef ,  FREDERIKS, Guido Robert ,  JIA, Zhanfeng ,  KIM, Youhan ,  LI, Yixiang ,  ZHANG, Ning

IPC: H04W72/04 ,  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.

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传输。

公开(公告)号：WO2016094556A1

公开(公告)日：2016-06-16

申请号：PCT/US2015/064788

申请日：2015-12-09

Applicant: QUALCOMM INCORPORATED

Inventor： KIM, Youhan ,  JIA, Zhanfeng ,  KATAR, Srinivas ,  MALIK, Rahul ,  SUNDARARAJAN, Jay Kumar ,  MEYLAN, Arnaud ,  ZHANG, Ning ,  CHERIAN, George

IPC: H04W48/16 ,  H04W28/16

CPC classification number: H04W24/10 ,  H04W28/16 ,  H04W48/12 ,  H04W48/16 ,  H04W48/20

Abstract: Methods, apparatus, and computer-readable media for wireless communication may involve techniques for throughput estimation. An expected air time parameter may be used as a parameter for estimating throughput. The expected air time parameter may be indicative of an estimated air time fraction obtainable for communications using an access point (AP), for example, between a wireless station (STA) and the AP. Either the expected air time parameter or an estimated air time fraction determined (e.g., calculated) from the expected air time parameter may be transmitted from the AP to the STA (or other communication device) to allow the STA (or other communication device) to determine an estimated throughput for communications using the AP.

Abstract translation: 用于无线通信的方法，装置和计算机可读介质可以涉及用于吞吐量估计的技术。 可以使用预期的空中时间参数作为估计吞吐量的参数。 预期空中时间参数可以指示例如在无线站（STA）和AP之间使用接入点（AP）的通信可获得的估计空中时间分数。 可以从AP向STA（或其他通信设备）发送从预期空中时间参数确定（例如，计算）的预期空中时间参数或估计空中时间分数，以允许STA（或其他通信设备） 确定使用AP的通信的估计吞吐量。

公开(公告)号：WO2016044298A1

公开(公告)日：2016-03-24

申请号：PCT/US2015/050228

申请日：2015-09-15

Applicant: QUALCOMM INCORPORATED

Inventor： TIAN, Bin ,  YANG, Lin ,  CHEN, Jialing Li ,  VERMANI, Sameer ,  TANDRA, Rahul ,  KIM, Youhan ,  VAN NEE, Didier Johannes Richard

IPC: H04L5/00 ,  H04L27/26 ,  H04W48/12

CPC classification number: H04B7/022 ,  H04L1/0071 ,  H04L1/06 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0053 ,  H04L27/2601 ,  H04W48/12

Abstract: Methods and apparatuses for communicating over a wireless communication network are disclosed herein. One method includes forming a message that includes a plurality of data tones and one or more direct current (DC) protection tones. The method further includes setting a value for a data tone of the plurality of data tones to carry a data portion of the message. The method further includes setting a value for a DC protection tone of the one or more DC protection tones by repeating the value for the data tone as the value for the DC protection tone. The method further includes transmitting the message to one or more wireless communication devices utilizing the plurality of data tones and the one or more DC protection tones.

Abstract translation: 本文公开了通过无线通信网络进行通信的方法和装置。 一种方法包括形成包括多个数据音调和一个或多个直流（DC）保护音调的消息。 该方法还包括设置多个数据音调的数据音调的值以携带该消息的数据部分。 该方法还包括通过将数据音调的值重复为DC保护音的值来设置一个或多个DC保护音调的直流保护音的值。 该方法还包括利用多个数据音调和一个或多个DC保护音调将消息发送到一个或多个无线通信设备。

公开(公告)号：WO2013151847A9

公开(公告)日：2013-10-10

申请号：PCT/US2013/034186

申请日：2013-03-27

Applicant: QUALCOMM INCORPORATED

Inventor： KIM, Youhan ,  CHADD, Adrian H. ,  GREEN, Michael R. ,  ZHANG, Ning ,  JONES, Vincent K., IV

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/02 ,  H04W72/08 ,  H04W48/12 ,  H04W88/10

Abstract: A wireless device may be configured to operate in one of two modes where each mode uses a different channel list to perform operations in accordance with the IEEE 802.11 standard. In a first mode, the wireless device operates as an access point that sets up channels using one channel list in order to facilitate communications within a basic service set (BSS). In a second mode, the wireless device uses a second channel list to operate as a station and scan for a BSS. The first channel list contains a subset of the channels contained in the second channel list. The channels in each respective channel list may be reconfigured to adapt to changes in the configuration of a BSS and the devices communicating therein.

公开(公告)号：WO2023059403A1

公开(公告)日：2023-04-13

申请号：PCT/US2022/041076

申请日：2022-08-22

Applicant: QUALCOMM INCORPORATED

Inventor： YANG, Lin ,  TIAN, Bin ,  CHEN, Qifan ,  KIM, Youhan

IPC: H04L27/26 ,  H04L5/00 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2621 ,  H04L5/0041 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0069 ,  H04W52/286

Abstract: This disclosure provides methods, devices and systems for increasing the transmit power of wireless communication devices operating on power spectral density (PSD)-limited wireless channels. Some implementations more specifically relate to LTF designs that support distributed transmissions. In some aspects, a transmitting device may obtain a sequence of values representing an LTF of a PPDU and may map the sequence of values to a number (N) of noncontiguous subcarrier indices of a plurality of subcarrier indices spanning a wireless channel according to a distributed tone plan. In some implementations, the transmitting device may modulate the sequence of values on N tones, representing a logical RU, and map the N tones to the N noncontiguous subcarrier indices, respectively. In some other implementations, the sequence of values may be obtained based on relative locations of the N noncontiguous subcarrier indices in the wireless channel.

公开(公告)号：WO2022245463A1

公开(公告)日：2022-11-24

申请号：PCT/US2022/025613

申请日：2022-04-20

Applicant: QUALCOMM INCORPORATED

Inventor： YANG, Lin ,  TIAN, Bin ,  KIM, Youhan

IPC: H04L5/00 ,  H04L27/26 ,  H04W52/34

Abstract: This disclosure provides methods, devices and systems for increasing the transmit power of wireless communication devices operating on power spectral density (PSD)-limited wireless channels. Some implementations more specifically relate to physical layer (PHY) convergence protocol (PLCP) protocol data unit (PPDU) designs that support distributed transmission. In some implementations, a PPDU may be generated based on one or more legacy tone plans. In such implementations, a portion of the PPDU may be modulated on a number (M) of tones representing a logical RU, and the M tones may be further mapped to M noncontiguous subcarrier indices in accordance with a distributed tone plan. In some other implementations, a PPDU may be generated based on a distributed tone plan. In such implementations, a portion of the PPDU may be modulated on a number (M) of tones coinciding with M noncontiguous subcarrier indices in accordance with the distributed tone plan.

公开(公告)号：WO2022150141A1

公开(公告)日：2022-07-14

申请号：PCT/US2021/062563

申请日：2021-12-09

Applicant: QUALCOMM INCORPORATED

Inventor： RAISSINIA, Alireza ,  TIAN, Bin ,  SHELLHAMMER, Stephen Jay ,  KIM, Youhan

IPC: H04W12/122 ,  H04W12/037 ,  H04L25/03 ,  H04L27/26

Abstract: This disclosure provides methods, devices and systems for improving the security of secure long training field (LTF) transmissions. In some implementations, a transmitting device may perform windowing on a secure LTF, in the frequency domain, so that the resulting time-domain LTF signal is difficult, if not impossible, to predict by any device that observes a portion of the LTF signal. In some aspects, the transmitting device may negotiate the windowing of secure LTFs with a receiving device based on fine timing measurement (FTM) negotiation frames exchanged at the start of an FTM procedure. In some other aspects, the transmitting device may dynamically or adaptively perform windowing on secure LTFs. In such aspects, the transmitting device may indicate whether windowing is performed on a secure LTF based on information carried in a signal field of a physical layer convergence protocol (PLCP) protocol data unit (PPDU) that includes the secure LTF.

公开(公告)号：WO2021183608A1

公开(公告)日：2021-09-16

申请号：PCT/US2021/021645

申请日：2021-03-10

Applicant: QUALCOMM INCORPORATED

Inventor： YANG, Lin ,  CHEN, Jialing Li ,  VERMANI, Sameer ,  TIAN, Bin ,  KIM, Youhan ,  JONES IV, Vincent Knowles ,  YUCEK, Tevfik

IPC: H04L5/00 ,  H04W84/12

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for physical layer (PHY) packet design for power spectral density (PSD) limits. In some implementations, a wireless communication device generates a plurality of PHY convergence protocol (PLCP) protocol data unit (PPDU) duplicates configured for transmission over a selected bandwidth, and transmits each PPDU duplicate of the plurality of PPDU duplicates on a corresponding frequency subband of a plurality of different frequency subbands. In some other implementations, the wireless communication device generates a PPDU for transmission over a set of duplicated resource units (RUs) allocated to the wireless communication device, and transmits the PPDU over the allocated set of duplicated RUs.

公开(公告)号：WO2020072961A3

公开(公告)日：2020-04-09

申请号：PCT/US2019/054799

申请日：2019-10-04

Applicant: QUALCOMM INCORPORATED

Inventor： VERMA, Lochan ,  TIAN, Bin ,  VERMANI, Sameer ,  KIM, Youhan ,  YANG, Lin

IPC: H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described for control signaling in next generation wireless local area network (WLAN) environments. A message transmitted by an access point may allocate resources to a plurality of stations. The access point may be configured to allocate up to 320 MHz of total bandwidth along with coarse punctures. The access point may also allocate up to eight space-time streams to each station in a multi-user multiple-input multiple output (MU-MIMO) transmission, and support simultaneous transmission to up to sixteen stations. To support 320 MHz bandwidth and up to sixteen stations, one or more signaling fields used in other environments may be repurposed to effectively signal the additional resources available in a next generation WLAN.

公开(公告)号：WO2019240955A1

公开(公告)日：2019-12-19

申请号：PCT/US2019/034468

申请日：2019-05-29

Applicant: QUALCOMM INCORPORATED

Inventor： VERMA, Lochan ,  TIAN, Bin ,  KIM, Youhan

IPC: H04L5/00

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for per-station punctured transmissions. A wireless local area network (WLAN) device may determine available resource units (RUs) within a wireless channel that has a punctured frequency range. The WLAN device may allocate a plurality of RUs, from among the available RUs, to include data for a same station. For example, a physical layer protocol data unit (PPDU) may include more than one RU for a first station. The RUs that are allocated to the first station may exclude the punctured frequency range. In some implementations, the plurality of RUs may be separated by at least the punctured frequency range. A signaling header in the PPDU may indicate which RUs are allocated to the first station. By allocating a plurality of RUs in a PPDU, a WLAN may support per-station puncturing within the PPDU.