公开(公告)号：US11115924B2

公开(公告)日：2021-09-07

申请号：US16122542

申请日：2018-09-05

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Jing Sun ,  Tamer Kadous

IPC: H04W72/10 ,  H04L5/00 ,  H04W52/02 ,  H04L27/00 ,  H04W16/14 ,  H04W74/08 ,  H04W74/00

Abstract: Multi-band Wake-up (MWU) signal transmission and detection is disclosed. A transmitter determines a MWU signal that indicates availability of one or more sub-bands to a first user in a serving cell, and transmits the MWU signal for the one or more sub-bands in the serving cell. A clear channel assessment (CCA) status on the one or more sub-bands that are available to the first user is carried by the payload of MWU signals. The MWU signal includes a first user identifier that identifies the first user as a targeted receiver of the MWU signal. The first user has priority over a second user to utilize the one or more sub-bands. Correspondingly, a receiver receives a MWU signal for one or more sub-bands in the serving cell, decodes a payload of the MWU signal, and determines availability of the one or more sub-bands to the first user based on the payload of the MWU signal.

公开(公告)号：US11109420B2

公开(公告)日：2021-08-31

申请号：US16777657

申请日：2020-01-30

Applicant: QUALCOMM Incorporated

Inventor： Ozcan Ozturk ,  Xiaoxia Zhang ,  Tao Luo ,  Jing Sun

IPC: H04W74/08 ,  H04W16/14 ,  H04W72/04 ,  H04W74/00 ,  H04L12/413

Abstract: This disclosure provides systems, methods, and apparatuses to enable a user equipment (UE) and a base station to improve reception of a random access response (RAR) by the UE in an unlicensed spectrum. A network may define a procedure for calculating a random access radio network temporary identifier (RA-RNTI) specific to unlicensed spectrum based on an extended RAR window. The calculation procedure may allow UEs transmitting in the window to calculate a unique RA-RNTI and identify a RAR addressed to the UE using the unique RA-RNTI. Additionally, or alternatively, a base station may transmit a RAR including timing information associated with a corresponding random access request. Accordingly, a UE may receive the RAR and compare the timing information with its own random access request in order to determine whether the RAR is addressed to the UE. Additionally, a UE may monitor a secondary cell or a sub-band for the RAR.

公开(公告)号：US11102818B2

公开(公告)日：2021-08-24

申请号：US15887293

申请日：2018-02-02

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Jing Sun ,  Peter Gaal ,  Heechoon Lee

IPC: H04W74/08 ,  H04W72/04 ,  H04L5/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for collision handling in NR. In certain aspect, a method for use by a wireless communications device includes detecting a collision between resources allocated to different channels and initiating collision handling when processing the different channels based on the detection, wherein at least one of the detection or the processing is based on one or more characteristics of the different channels or the wireless device. In certain aspects, the one or more characteristics comprise at least one of one or more numerologies associated with at least one of the different channels, a modulation order of at least one of the different channels, coding rate of at least one of the different channels, or one or more capabilities of the wireless device.

公开(公告)号：US11102765B2

公开(公告)日：2021-08-24

申请号：US16282009

申请日：2019-02-21

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Jing Sun ,  Tamer Kadous

IPC: H04W72/04 ,  H04L1/18 ,  H04L1/08 ,  H04W74/08 ,  H04L1/00

Abstract: Techniques and apparatus for enhancing uplink grant-free transmissions and/or downlink semi-persistent scheduling (SPS) transmissions for uplink ultra-reliable low latency communications (URLLC) are described. One technique includes receiving a first configuration for a first grant-free communication and a second configuration for at least one second grant-free communication. Grant-free communications are performed based on at least one of the first configuration or the second configuration.

公开(公告)号：US11096181B2

公开(公告)日：2021-08-17

申请号：US15876013

申请日：2018-01-19

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Sanaz Barghi ,  Chirag Sureshbhai Patel ,  Mohammad Naghshvar ,  Tamer Adel Kadous

IPC: H04W72/08 ,  H04W74/00 ,  H04B17/345 ,  H04W74/02 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0408 ,  H04B7/06 ,  H04B7/08

Abstract: Methods, systems, and devices for wireless communication are described for monitoring interference level to selectively control usage of a contention-based protocol. In an example, a wireless device may transmit, while operating in a non-contention-based mode for a wireless link with a second wireless device, a first beamformed data transmission to the second wireless device over a shared channel. The wireless device may determine that an interference level condition is satisfied for the shared channel and transition from operating in the non-contention-based mode to operating in a contention-based mode for the wireless link based at least in part on the interference level condition being satisfied. The wireless device may perform a contention-based protocol, while operating in the contention-based mode for the wireless link with the second wireless device, prior to transmission of a second beamformed data transmission to the second wireless device over the shared channel.

公开(公告)号：US20210251000A1

公开(公告)日：2021-08-12

申请号：US17170232

申请日：2021-02-08

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Vinay Chande ,  Arumugarn Chendamarai Kannan ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive a clear channel assessment trigger from a second wireless device, the clear channel assessment trigger associated with a data transmission by the second wireless device. The first wireless device may transmit, based at least in part on a result of a first clear channel assessment procedure, feedback information for the clear channel assessment trigger. The first wireless device may receive the data transmission based at least in part on the feedback information for the first clear channel assessment procedure. The first wireless device may transmit, based at least in part on a result of a second clear channel assessment procedure, feedback information for the data transmission, wherein the first clear channel assessment procedure has a first duration that is longer than a second duration for the second clear channel assessment procedure.

公开(公告)号：US20210250999A1

公开(公告)日：2021-08-12

申请号：US17170015

申请日：2021-02-08

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Vinay Chande ,  Arumugam Chendamarai Kannan ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04W74/08 ,  H04W72/14 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a grant scheduling an acknowledgement feedback transmission for the grant. The UE may identify, based at least in part on a first timing associated with the grant, a second timing associated with the acknowledgment feedback transmission, or a combination thereof, a duration for a channel clearance procedure to be performed before transmitting the acknowledgement feedback transmission. The UE may perform the channel clearance procedure using the identified duration. The UE may transmit the acknowledgement feedback transmission based at least in part on a result of the channel clearance procedure.

公开(公告)号：US20210250932A1

公开(公告)日：2021-08-12

申请号：US17248248

申请日：2021-01-15

Applicant: QUALCOMM INCORPORATED

Inventor： Chih-Hao Liu ,  Yisheng Xue ,  Xiaoxia Zhang ,  Jing Sun ,  Yongbin Wei

IPC: H04W72/04 ,  H04W72/12 ,  H04W72/14 ,  H04L5/00

Abstract: Wireless communications systems and methods related to uplink communications with transmission on-off patterns and frequency-hopping in a shared radio frequency band are provided. A first wireless communication device communicates, with a second wireless communication device, a configuration indicating a plurality of uplink (UL) transmission on-off patterns that are offset from each other in time. The first wireless communication device communicates, with the second wireless communication device in an unlicensed band, a first UL communication signal based on a first UL transmission on-off pattern of the plurality of UL transmission on-off patterns.

公开(公告)号：US20210250880A1

公开(公告)日：2021-08-12

申请号：US17169386

申请日：2021-02-05

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04W52/48 ,  H04W52/18 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive first downlink control information corresponding to a first group of downlink transmissions and second downlink control information corresponding to a second group of downlink transmissions. The UE may calculate a number of information bits for a feedback message including first feedback for one or more downlink transmissions of the first group and second feedback for one or more downlink transmissions of the second group. The number of information bits may include first information bits of the first feedback and second information bits of the second feedback. The UE may identify a transmission power for the feedback message based on the calculated number of information bits. The UE may transmit the feedback message including the first feedback and the second feedback using the identified transmission power.

公开(公告)号：US20210243793A1

公开(公告)日：2021-08-05

申请号：US17235487

申请日：2021-04-20

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Peter Gaal ,  Wanshi Chen ,  Alexei Yurievitch Gorokhov ,  Jing Sun ,  Joseph Binamira Soriaga ,  Heechoon Lee

IPC: H04W72/12 ,  H04L5/00 ,  H04W28/06 ,  H04W72/04

Abstract: Different sets of downlink control information (DCI) fields may be configured for DCI that includes an indication to trigger bandwidth part switching at a user equipment (UE). For example, a UE may receive DCI that triggers the UE to switch operation from a first bandwidth part to a second bandwidth part. The UE may also identify a set of transformable DCI fields and a set of non-transformable DCI fields within the DCI. The UE may then determine updated content of the DCI for application to the second bandwidth part based on whether DCI fields are included in the set of transformable or the set of non-transformable fields. In some cases, the UE may identify a null assignment in the received DCI and may switch its operation from the first bandwidth part to the second bandwidth part based on the null assignment.