公开(公告)号：US11051193B2

公开(公告)日：2021-06-29

申请号：US15215148

申请日：2016-07-20

Applicant: Qualcomm Incorporated

Inventor： Renqiu Wang ,  Madhavan Srinivasan Vajapeyam ,  Hao Xu ,  Wanshi Chen ,  Peter Gaal ,  Yongbin Wei

IPC: H04W24/10 ,  H04W4/70 ,  H04L5/00

Abstract: Aspects of the present disclosure provided techniques that for wireless communications by a base station (BS). An exemplary method, performed by a base station, generally includes identifying an operating state of a user equipment that communicates with the BS in at least one narrowband region, determining, based on the operating state, one or more operating parameters of a configurable measurement procedure whereby the user equipment (UE) tunes away from the narrowband region to measure signals transmitted from other BSs, and configuring the UE to perform the measurement procedure in accordance with the determined operating parameters.

公开(公告)号：US11038727B2

公开(公告)日：2021-06-15

申请号：US16664178

申请日：2019-10-25

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Jing Sun ,  Farhad Meshkati ,  Rajat Prakash ,  Yongbin Wei

IPC: H04L27/00 ,  H04L25/02 ,  H04L1/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a first set of parameters based at least in part on a first reference signal received from a first transmit receive point (TRP) and a second set of parameters based at least in part on a second reference signal received from a second TRP; determine a common parameter using the first set of parameters and the second set of parameters; and perform a tracking loop operation using the common parameter or the first set of parameters and the second set of parameters, wherein the tracking loop operation comprises at least one of a frequency tracking loop operation or a time tracking loop operation. Numerous other aspects are provided.

公开(公告)号：US11012984B2

公开(公告)日：2021-05-18

申请号：US16218214

申请日：2018-12-12

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Aleksandar Damnjanovic ,  Durga Prasad Malladi ,  Hao Xu ,  Peter Gaal ,  Yongbin Wei ,  Tao Luo

IPC: H04W72/04 ,  H04W74/08 ,  H04W72/12 ,  H04W74/00 ,  H04W16/14

Abstract: Techniques are described for wireless communication. A first method includes identifying a first interval for an uplink transmission in a shared radio frequency spectrum band; identifying a second interval for the uplink transmission; comparing the first interval with the second interval; and determining uplink resources to use for the uplink transmission based at least in part on the comparison of the first interval with the second interval. A second method includes transmitting one or more assignments of uplink resources to use for an uplink transmission in a shared radio frequency spectrum band; detecting a duration of the uplink transmission; and identifying uplink resources used for the uplink transmission based at least in part on the detecting.

公开(公告)号：US20210127253A1

公开(公告)日：2021-04-29

申请号：US17078905

申请日：2020-10-23

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Jing Sun ,  Yisheng Xue ,  Xiaoxia Zhang ,  Yongbin Wei

IPC: H04W8/00 ,  H04W72/02 ,  H04W72/12 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. In a first case, a first user equipment (UE) may transmit to a second UE a sidelink discovery message preamble corresponding to a sidelink discovery message. The first UE may identify resources for transmission of the sidelink discovery messages based on the sidelink discovery message preamble. The first UE may either transmit the sidelink discovery message to the second UE or may receive the sidelink discovery message from the second UE using the identified resources for the transmission of the sidelink discovery message. In some cases, the second UE may transmit sidelink control information (SCI) to the first UE, and may transmit a sidelink discovery message to the first UE based on resources identified in the SCI. In some cases, the first UE may transmit the sidelink discovery message without transmission of a preamble or a SCI.

公开(公告)号：US20210099996A1

公开(公告)日：2021-04-01

申请号：US17119946

申请日：2020-12-11

Applicant: QUALCOMM Incorporated

Inventor： Naga Bhushan ,  Durga Prasad Malladi ,  Hao Xu ,  Yongbin Wei ,  Wanshi Chen

IPC: H04W72/04

Abstract: Methods, systems, and devices are described for providing allocations and signaling for different types of communications within a wireless communication system. An eNB and/or a UE may be configured to operate within the wireless communication system using two or more different types of communications. The different types of communications may differ, for example, based on round trip time (RTT) between transmission and acknowledgment of receipt of the transmission, a transmission time interval (TTI) for wireless transmissions, and/or duty cycle timing of wireless transmissions. Reserved resources within a system bandwidth may be identified for a first type of communications, and all or a portion of remaining resources within the system bandwidth may be allocated for other communications that may differ from the first type of communications based on, for example, RTT, TTI, and/or duty cycle timing.

公开(公告)号：US10965514B2

公开(公告)日：2021-03-30

申请号：US16168629

申请日：2018-10-23

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Yongbin Wei ,  Tamer Kadous ,  Zhifei Fan ,  Jing Sun

IPC: H04L27/26 ,  H04L27/00 ,  H04L25/02 ,  H04L27/227 ,  H04W72/04 ,  H04W16/14

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless systems, different wireless devices may communicate using different radio access technologies (RATs) in a shared radio frequency spectrum. Prior to communicating on a channel in the shared radio frequency spectrum, a wireless device may transmit a training field as part of a preamble in a transmission on the channel to reserve the channel for the transmission. As described herein, a training field transmitted by a wireless device using one RAT may be transmitted with an autocorrelation property associated with training fields of another RAT. As such, a wireless device configured to communicate using the other RAT may be able to receive and identify the training field (e.g., based on the autocorrelation property), and the wireless device may use the additional techniques described herein to determine an availability of the channel based on the training field.

公开(公告)号：US10944533B2

公开(公告)日：2021-03-09

申请号：US16393820

申请日：2019-04-24

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Joseph Paul Odenwalder ,  Stein Arne Lundby ,  Yongbin Wei

IPC: H04L5/00 ,  H04L1/00 ,  H04J11/00 ,  H04J13/00 ,  H04J13/12 ,  H04B1/707 ,  H04L1/16

Abstract: Techniques for utilizing multiple carriers to substantially improve transmission capacity are described. For multi-carrier operation, a terminal receives an assignment of multiple forward link (FL) carriers and at least one reverse link (RL) carrier. The carriers may be arranged in at least one group, with each group including at least one FL carrier and one RL carrier. The terminal may receive packets on the FL carrier(s) in each group and may send acknowledgements for the received packets via the RL carrier in that group. The terminal may send channel quality indication (CQI) reports for the FL carrier(s) in each group via the RL carrier in that group. The terminal may also transmit data on the RL carrier(s). The terminal may send designated RL signaling (e.g., to originate a call) on a primary RL carrier and may receive designated FL signaling (e.g., for call setup) on a primary FL carrier.

公开(公告)号：US10932286B2

公开(公告)日：2021-02-23

申请号：US16160854

申请日：2018-10-15

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Durga Prasad Malladi ,  Peter Gaal ,  Yongbin Wei ,  Hao Xu ,  Shimman Arvind Patel ,  Aleksandar Damnjanovic

IPC: H04W72/12 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. A receiving device may detect a signal associated with low latency transmissions and decode a non-low latency communication accordingly. The receiving device may receive an indicator from a transmitting device that indicates where and when low latency communications occur. The indication may specify frequency resources or symbols used by the low latency communication. The indicator may be transmitted during the same subframe as the low latency communication, at the end of a subframe, or during a subsequent subframe. The receiving device may use the indicator to mitigate low latency interference, generate channel estimates, and reliably decode the non-low latency communication. In some cases, the interfering low latency communication may occur within the serving cell of the receiving device; or the interfering low latency communication may occur in a neighboring cell.

公开(公告)号：US20210044982A1

公开(公告)日：2021-02-11

申请号：US16949389

申请日：2020-10-28

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Tamer Kadous ,  Yongbin Wei ,  Xiaoxia Zhang ,  Srinivas Yerramalli

IPC: H04W16/14 ,  H04W72/04 ,  H04W74/08 ,  H04M1/725 ,  H04W56/00 ,  H04L1/18 ,  H04W84/04

Abstract: Wireless communications systems and methods related to coordinating shared radio resources for spectrum sharing are provided. A spectrum resource control unit allocates a first resource for exclusive access by a first network operating entity in a spectrum. The exclusive access is configured for at least one of a network information communication or a feedback communication. The spectrum resource control unit allocates a second resource in the spectrum for shared access by the first network operating entity and a second network operating entity. The shared access is configured for at least a downlink control information communication. The spectrum resource control unit transmits, to the first network operating entity and the second network operating entity, a configuration indicating the first resource allocated for exclusive access by the first network operating entity and the second resource allocated for shared access by the first network operating entity and the second network operating entity.

公开(公告)号：US20200374702A1

公开(公告)日：2020-11-26

申请号：US16871867

申请日：2020-05-11

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Andrei Dragos Radulescu ,  Yongbin Wei

IPC: H04W16/14 ,  H04W56/00 ,  H04W84/18 ,  H04W74/08 ,  H04W72/04

Abstract: Synchronous communications mode detection is disclosed for unlicensed spectrum communications. To detect synchronous mode communications, an observing node monitors on-off transitions of communication transmissions on a shared communication spectrum. The observing node detects the on-off transition spacing of the on-off transitions over a sliding window of a detection period duration. The node may determine the number of candidate synchronous on-off transition spacings of the detected on-off transition spacings that are equal to an integer multiple of a synchronization period. If the number of candidate synchronous on-off transition spacings exceeds a threshold value the observing node will declare detection of a synchronous operation mode of the shared communication spectrum.