公开(公告)号：US10856222B2

公开(公告)日：2020-12-01

申请号：US16111047

申请日：2018-08-23

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay Shellhammer ,  Bin Tian ,  Lochan Verma

IPC: H04W52/02 ,  H04L5/00 ,  H04L27/26 ,  H04L5/14 ,  H04L12/825 ,  H04W84/12

Abstract: This disclosure provides systems, methods and apparatuses for indicating a data rate of a packet. The transmitting device may select the data rate of a data field of the packet to be transmitted to the receiving device, and may select a pattern to embed within a preamble of the packet based on the selected data rate. In some implementations, the transmitting device may select a first structure including a first number of instances of a sequence or its logical complement if the selected data rate is a low data rate, and may select a second structure including a second number of instances of the sequence or its logical complement if the selected data rate is a high data rate.

公开(公告)号：US10790930B2

公开(公告)日：2020-09-29

申请号：US16058301

申请日：2018-08-08

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li Chen ,  Lin Yang ,  Bin Tian ,  Ning Zhang ,  Vincent Knowles Jones, IV ,  Didier Johannes Richard Van Nee ,  Louay Jalloul ,  Ahmad Abdulrahman Mohammed

IPC: H04L1/00 ,  H04B1/10 ,  H04B1/403 ,  H04W52/02 ,  H04W84/12

Abstract: Apparatuses and methods for correcting a distorted signal at a receiver device during wireless local area network (WLAN) communications are disclosed. The apparatuses and methods include receiving, by a receiver device in a WLAN, a distorted signal corresponding to a data packet signal transmitted from a transmitter device, receiving, by the receiver device, one or more transmitter parameters corresponding to the transmission of the data packet signal, the one or more transmitter parameters including information to adjust the distorted signal, and adjusting, by the receiver device, the distorted signal to reconstruct the data packet signal based at least on the one or more transmitter parameters.

公开(公告)号：US20200305164A1

公开(公告)日：2020-09-24

申请号：US16803627

申请日：2020-02-27

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Sameer Vermani

IPC: H04W72/04 ,  H04W80/08 ,  H04L5/00 ,  H04L27/26 ,  H04W80/02 ,  H04L1/00

Abstract: This disclosure provides methods, devices and systems for data parsing for resource unit (RU) aggregation. A wireless communication device (such as an access point (AP) or a station (STA)) may allocate a set of RUs for a receiving device in a basic service set (BSS). The set of RUs may be associated with multiple bandwidth segments of a bandwidth allocation and may be non-contiguous or contiguous. The wireless communication device may determine a data parsing and encoding scheme for a set of information bits. The data parsing may be implemented at a medium access control (MAC) layer or physical (PHY) layer and the encoding may correspond to a joint encoding or a separate encoding for each RU of the allocation. The wireless communication device may then distribute the coded bits to the set of RUs for transmission.

公开(公告)号：US10772110B2

公开(公告)日：2020-09-08

申请号：US16155515

申请日：2018-10-09

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Tamer Kadous ,  Yongbin Wei ,  Zhifei Fan ,  Jing Sun ,  Aleksandar Damnjanovic ,  Bin Tian

IPC: H04W72/12 ,  H04W16/14 ,  H04W72/04 ,  H04W74/08 ,  H04W84/12

Abstract: Wireless communications systems and methods related to signaling medium reservation information medium sharing among multiple radio technologies (RATs) are provided. A wireless communication device of a first RAT detects a channel reservation signal of a second RAT in a spectrum shared by the first RAT and the second RAT. The wireless communication device determines whether the channel reservation signal indicates a first transmission opportunity (TXOP) duration or a second TXOP duration that is different from the first TXOP duration. The wireless communication device selects, based on the determination, at least one of performing a backoff or continuing to monitor the spectrum.

公开(公告)号：US10721627B2

公开(公告)日：2020-07-21

申请号：US16052474

申请日：2018-08-01

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04W16/10 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/06 ,  H04W84/10 ,  H04W72/04

Abstract: Certain aspects relate to methods and apparatus for wireless communication. The apparatus generally includes a processing system configured to generate a first frame including an indication of unused resources in a first basic service set (BSS) available to be shared with one or more wireless nodes in one or more second BSSs. The apparatus also includes a first interface configured to output the first frame for transmission to the one or more wireless nodes.

公开(公告)号：US20200077421A1

公开(公告)日：2020-03-05

申请号：US16559346

申请日：2019-09-03

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Abhishek Pramod Patil ,  Bin Tian

IPC: H04W72/12 ,  H04W28/02 ,  H04W74/02 ,  H04L5/00

Abstract: Techniques for implementing low latency communications in a wireless local area network are provided. A first wireless communication device may implement a low latency basic service set (BSS) that allows contention-based channel access over a portion of a bandwidth. The first wireless communication device may configure a primary channel and one or more secondary channels within an available bandwidth. Communications with one or more wireless communication devices that have data traffic associated with a quality of service (QoS) parameter may be provided over one or more of the secondary channels. A transmission from a second wireless communication device on the primary channel may be discarded by the first wireless communication device, or the first wireless communication device may take over channel access from the second wireless communication device if such a transmission overlaps with low latency transmissions on the one or more secondary channels.

公开(公告)号：US10582026B2

公开(公告)日：2020-03-03

申请号：US15826541

申请日：2017-11-29

Applicant: QUALCOMM Incorporated

Inventor： Dung Ngoc Doan ,  Tao Tian ,  Sameer Vermani ,  Bin Tian ,  Lin Yang ,  Eric Pierre Rebeiz ,  Rahul Tandra ,  Simone Merlin ,  Alfred Asterjadhi ,  Yan Zhou

IPC: H04L29/06 ,  H04L27/26 ,  H04W72/04

Abstract: A method of wirelessly communicating a packet includes generating, at a first wireless device, a first packet including a first preamble decodable by a plurality of devices and a second preamble decodable by only a subset of the plurality of devices. The first preamble includes a first signal field. The second preamble includes a first training field. The method further includes transmitting the first packet concurrently with one or more second packets to be transmitted by wireless devices other than the first wireless device.

公开(公告)号：US20190273647A1

公开(公告)日：2019-09-05

申请号：US16272643

申请日：2019-02-11

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay Shellhammer ,  Bin Tian

IPC: H04L27/26 ,  H04L27/233 ,  H04L27/20 ,  H04W52/02

Abstract: Methods, systems, and devices for wireless communication are described. A transmitting device may transmit a wakeup message to another device. The wakeup message may be transmitted using a transmit diversity scheme in accordance with aspects of the present disclosure. The transmit diversity may, for example, include a cyclic shift diversity scheme, a phase rotation scheme, a symbol generation scheme, or combinations thereof. The transmit diversity may in some cases improve a communication range of the wakeup message or otherwise benefit the wireless communications system.

公开(公告)号：US10375683B2

公开(公告)日：2019-08-06

申请号：US15587135

申请日：2017-05-04

Applicant: QUALCOMM Incorporated

Inventor： Lochan Verma ,  Sameer Vermani ,  Bin Tian ,  Lin Yang ,  Raja Banerjea ,  Alfred Asterjadhi

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W16/14 ,  H04W52/14 ,  H04W52/24 ,  H04W74/04 ,  H04W84/12 ,  H04W74/00

Abstract: The present disclosure provides various aspects related to techniques for generating trigger frames, at an access point (AP), that reduce the overhead associated with triggering an uplink transmission from the wireless station (STA). Features of the present disclosure achieve this by, for example, utilizing a single per-user information field of the trigger to signal a plurality of random access resource units that may be allocated to the one or more STAs in the network. Such a technique is an improvement over the conventional system that require each random access resource unit to be signaled separately in a separate per-user information field (thus increasing the overhead). Additionally, aspects of the present disclosure allow the AP to effectively signal to the STA whether the one or more resources allocated to the at least one STA are a single user resource unit allocation or a multi-user resource unit allocation.

公开(公告)号：US10355956B2

公开(公告)日：2019-07-16

申请号：US15260131

申请日：2016-09-08

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Youhan Kim

IPC: H04L12/26 ,  H04W72/04 ,  H04W52/36 ,  H04L27/26 ,  H04W84/12 ,  H04W88/02

Abstract: Methods, systems, and devices are described for wireless communications. A wireless station includes a transmitter to generate a wideband contiguous waveform in a band. The transmitter transmits the waveform that conforms to spectral masking attributes and spectral flatness attributes. The wireless station, or another device supporting spectrum analysis functions, detects a wideband contiguous waveform and performs spectrum analysis of the waveform. The wireless station includes a resolution bandwidth of 25 KHz and a video bandwidth of 7.5 KHz.