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.

公开(公告)号：US10341999B2

公开(公告)日：2019-07-02

申请号：US15084286

申请日：2016-03-29

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Bin Tian

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12 ,  H04L1/16

Abstract: Methods and systems for wireless communication are disclosed. In one aspect, a method includes generating device specific transmission control information for each of two devices, transmitting the transmission control information for each device over different frequencies, and transmitting data to each of the devices as part of a communication according to the respective transmission control information. In some aspects, the transmission control information for each device is encoded based on an identifier of the device. For example, in some aspects, an error detection value such as a cyclic redundancy check, is exclusive or'ed with an identifier of the device, such as an AID, PAID, or group identifier. The resulting value is transmitted along with the transmission control information. A device receiving the wireless frame may only be able to decode its own transmission control information, as the decoding is also based on the receiving device's identifier.

公开(公告)号：US10285149B2

公开(公告)日：2019-05-07

申请号：US15182554

申请日：2016-06-14

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Tao Tian

IPC: H04W56/00 ,  H04W72/04 ,  H04B7/0456 ,  H04B7/0452 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26

Abstract: Techniques are provided for phase tracking in wireless communications using frames with some portions that use relatively long symbol durations. One technique includes generating a frame having a plurality of orthogonal training field sequences. Each orthogonal training field sequence is assigned to a different spatial stream. The frame is output for transmission as a single user (SU) transmission, a downlink multi-user (MU) multiple input multiple output (MIMO) transmission, or an orthogonal frequency division multiple access (OFDMA) transmission. After obtaining the frame, channel estimation and/or phase tracking may be performed based on the orthogonal training field sequences.

公开(公告)号：US20190110261A1

公开(公告)日：2019-04-11

申请号：US16154530

申请日：2018-10-08

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/36 ,  H04W52/16 ,  H04W72/04 ,  H04B1/7156

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may identify a transmission mode for transmission of an input signal to be transmitted. The input signal may thus be modulated according to the identified transmission mode, and the modulated signal may then be transmitted at some power level to produce a transmitted signal having a spectral envelope. In some cases, the spectral envelope may be defined in terms of a power spectral density (PSD) of the transmitted waveform. The PSD may generally define the power of the waveform signal distributed over frequencies of the waveform. Further, the wireless device may control the modulation of the input signal, in addition to the power level of the input signal, to maintain the spectral envelope to be within a spectral mask defined for the implemented transmission mode as well as to conform to spectral flatness parameters.

公开(公告)号：US10218483B2

公开(公告)日：2019-02-26

申请号：US15264240

申请日：2016-09-13

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Alfred Asterjadhi ,  Bin Tian ,  George Cherian ,  James Cho

IPC: H04L5/00 ,  H04L29/06 ,  H04L29/12 ,  H04L1/16 ,  H04L1/18 ,  H04W92/10

Abstract: Systems, methods, and apparatuses for signaling and generating variable length block acknowledgement fields in a wireless network are provided. One aspect of this disclosure provides a method of wireless communication. The method includes generating, by an apparatus, a block acknowledgment (BA) frame comprising a BA bitmap field. The method further includes determining a size of the BA bitmap field. The method further includes inserting an indication of the determined size of the BA bitmap field.

公开(公告)号：US10200101B2

公开(公告)日：2019-02-05

申请号：US15052834

申请日：2016-02-24

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Youhan Kim ,  Bin Tian ,  George Cherian ,  Alfred Asterjadhi ,  Sameer Vermani ,  Gwendolyn Denise Barriac

IPC: H04W4/00 ,  H04B7/06 ,  H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04W84/12 ,  H04W28/18

Abstract: Methods and apparatus for channel state information feedback are provided. In various aspects, a message is transmitted to one or more wireless communication devices requesting channel state information. In some aspects, a first portion of the message is transmitted according to a first or second, and contains first information intended for a first or second set of wireless communication devices compatible with the first or second format respectively. In some aspects, a second portion of the first message is transmitted according to the second format, and contains second information intended for the second set of wireless communication devices compatible with the second format. In some aspects, this information may comprise at least one of a list of identifiers, a set of parameters for estimating the channel state information estimation, and uplink transmission allocation information.

公开(公告)号：US10194391B2

公开(公告)日：2019-01-29

申请号：US15008399

申请日：2016-01-27

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  Simone Merlin ,  Bin Tian ,  George Cherian ,  Gwendolyn Denise Barriac

IPC: H04W52/02 ,  H04L5/00 ,  H04W28/02 ,  H04W72/00

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In an aspect, an apparatus may be configured to transmit a first message that includes a first trigger field to a second wireless device. The first trigger field may indicate whether the first message includes a request for a trigger message to be sent by the second wireless device at a start of a TWT service period. The apparatus may be configured to receive a second message from the second wireless device. The second message may include a second trigger field based on the first message, and the second trigger field may indicate whether the second wireless device will transmit the trigger message at the start of the TWT service period.

公开(公告)号：US10187813B2

公开(公告)日：2019-01-22

申请号：US14748051

申请日：2015-06-23

Applicant: QUALCOMM Incorporated

Inventor： Bin Tian ,  Simone Merlin ,  Gwendolyn Denise Barriac

IPC: H04W24/08 ,  H04W74/08 ,  H04B7/0452

Abstract: Methods and apparatus for adjusting transmission power in wireless networks are provided. One aspect of the disclosure provides an apparatus for wireless communication. The apparatus includes a processing system configured to receive a message instructing each of multiple devices to transmit a packet at least partially concurrently with each transmission of the other multiple devices. The processing system is further configured to generate the packet. The packet includes an indicator having a value greater than a time associated with a transmission of the packet. An interface is configured to provide the packet for transmission.

公开(公告)号：US20190014507A1

公开(公告)日：2019-01-10

申请号：US15960883

申请日：2018-04-24

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Bin Tian ,  Jing Sun ,  Taesang Yoo ,  Aleksandar Damnjanovic ,  Tamer Kadous ,  Yongbin Wei ,  Hemanth Sampath ,  Sameer Vermani

IPC: H04W28/26 ,  H04W16/14

Abstract: Wireless communications systems and methods related to signaling medium reservation information medium sharing among multiple radio technologies (RATs) are provided. A first wireless communication device communicates, with a second wireless communication device, a reservation signal to reserve a transmission opportunity (TXOP) in a spectrum. The spectrum is shared by multiple RATs. The reservation signal includes a plurality of first waveform sequences indicating medium reservation information detectable by the multiple RATs. The first wireless communication device and the second wireless communication device are associated with a first RAT of the multiple RATs. The first wireless communication device communicates, with the second wireless communication device using the first RAT, a communication signal in the spectrum during the TXOP.

公开(公告)号：US10149284B2

公开(公告)日：2018-12-04

申请号：US15013804

申请日：2016-02-02

Applicant: QUALCOMM Incorporated

Inventor： Bin Tian ,  Simone Merlin ,  Alfred Asterjadhi ,  George Cherian ,  Gang Ding ,  Gwendolyn Denise Barriac

IPC: H04W72/04 ,  H04L1/16 ,  H04L1/18 ,  H04W72/12 ,  H04L1/00

Abstract: Methods and apparatus for allocating multi-user resources are provided. In one aspect, the disclosure provides for a method of wireless communication with a plurality of wireless stations. The method comprises transmitting, by an access point, a first communication to a first wireless station, the first communication comprising an indication of a group of wireless stations from among the plurality of wireless stations, the group of wireless stations comprising the first wireless station. The method further comprises receiving, by the access point, a second communication from the first wireless station. The method further comprises transmitting, by the access point, a third communication to the group of wireless stations, the third communication comprising data for the group of wireless stations. In certain aspects, the third communication comprises a block acknowledgment of at least a portion of the second communication.