公开(公告)号：US20210298034A1

公开(公告)日：2021-09-23

申请号：US17203699

申请日：2021-03-16

Applicant: QUALCOMM Incorporated

Inventor： Linhai He ,  Seyedkianoush Hosseini ,  Sudhir Kumar Baghel ,  Karthika Paladugu ,  Gokul Sridharan ,  Gabi Sarkis ,  Gavin Bemard Horn ,  Hwan Joon Kwon ,  Wanshi Chen

IPC: H04W72/10 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. A base station may configure resources on a first communication link for scheduling requests and may transmit an indication of the configured resources over a second communication link to a first device. The first device may relay the indication of the configured resources to a second device via the first communication link. The second device may identify that resources on the first communication link are unavailable for a transmission and may transmit a scheduling request. The first device may receive the scheduling request. The first device may transmit, over the first communication link and based on the scheduling request, an indication of one or more shared channel resources configured by the base station for the transmission. The first device may receive, over the first communication link, the transmission over the one or more shared channel resources.

公开(公告)号：US20210297992A1

公开(公告)日：2021-09-23

申请号：US17203695

申请日：2021-03-16

Applicant: QUALCOMM Incorporated

Inventor： Linhai He ,  Seyedkianoush Hosseini ,  Sudhir Kumar Baghel ,  Karthika Paladugu ,  Gokul Sridharan ,  Gabi Sarkis ,  Gavin Bernard Horn ,  Hwan Joon Kwon ,  Wanshi Chen

IPC: H04W72/02 ,  H04W72/10 ,  H04W72/04 ,  H04W72/12 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described to support relayed sidelink communications. A first device and a base station may communicate via a communication link including a sidelink link between the first device and a second device and a relay link between the second device and the base station. The base station may determine restrictions for the communication link and transmit an indication of the restrictions over the relay link. The restrictions may differentiate data originating from the first device and the second device, restrict the first device to one or more resources, or associate logical channels at the first device with one or more transport block sizes and communication links. The second device may relay the indication of the restrictions to the first device. The first device, the second device, and the base station may communicate over the communication link according to the restrictions.

公开(公告)号：US20210267008A1

公开(公告)日：2021-08-26

申请号：US17179367

申请日：2021-02-18

Applicant: QUALCOMM Incorporated

Inventor： Sourjya Dutta ,  Kapil Gulati ,  Shuanshuan Wu ,  Anantharaman Balasubramanian ,  Sudhir Kumar Baghel

IPC: H04W76/28

Abstract: Methods, systems, and devices for wireless communications are described. A communication device supports sidelink communications, including device-to-device (D2D) communications and vehicle-based communications. The communication device receives, from another device, a discontinuous transmission (DTX) configuration for a sidelink connection between the communications device and the other device. Based on the received DTX configuration, the communications device determines a discontinuous reception (DRX) configuration and transmit, to the other device, the determined DRX configuration. The devices experience power savings, among other results according to the DTX configuration or the DRX configuration.

公开(公告)号：US20210258827A1

公开(公告)日：2021-08-19

申请号：US17156177

申请日：2021-01-22

Applicant: QUALCOMM Incorporated

Inventor： Gabi Sarkis ,  Shuanshuan Wu ,  Kapil Gulati ,  Sudhir Kumar Baghel

IPC: H04W28/06 ,  H04L1/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, two devices may communicate over a sidelink and support a mutually understood transport block (TB) size (TBS) determination procedure associated with a data channel including a control message. A first device may encode and transmit information on the data channel, including the control message and a data message. A second device may receive and decode the information on the data channel. The first device and the second device may determine a TBS for encoding and decoding the data channel, respectively, based on determining an estimated resource element (RE) overhead for the control message and determining an approximate TBS based on the estimated RE overhead.

公开(公告)号：US11096214B2

公开(公告)日：2021-08-17

申请号：US16525180

申请日：2019-07-29

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Junyi Li ,  Naga Bhushan ,  Sudhir Kumar Baghel ,  Tien Viet Nguyen

IPC: H04W74/00 ,  H04W72/04 ,  H04W72/12 ,  H04W72/08 ,  H04L5/00 ,  H04W4/40

Abstract: Aspects of the disclosure relate to a distributed channel access mechanism using multiple access (MA) signatures for control transmissions. In one aspect, a transmitting device determines a MA signature for distinguishing a transmission of the transmitting device from another transmission of another transmitting device on a same frequency resource, transmits sidelink control information using the MA signature on a first set of frequency resources, the sidelink control information corresponding to first data information, transmits the first data information on the first set of frequency resources, and receives, from a receiving device, a response indicating whether reception of the first data information was successful. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US11096033B2

公开(公告)日：2021-08-17

申请号：US16279772

申请日：2019-02-19

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Zhibin Wu ,  Sudhir Kumar Baghel ,  Junyi Li ,  Kapil Gulati ,  Libin Jiang

IPC: H04W8/00 ,  H04W16/28 ,  H04W4/40 ,  H04L29/08 ,  H04W4/46 ,  H04W74/08

Abstract: Methods, apparatuses, and computer-readable mediums for wireless communication are disclosed by the present disclosure. In an example, a host device may determine a pool of preconfigured resources for discovery. The preconfigured resources are designated for one or more of: a discovery preamble, a query signal, a discovery message, and a random access preamble. The host device may transmit the discovery preamble on one or more resources designated for the discovery preamble. A client device may receive the discovery preamble and determine that the client device is interested in receiving information regarding the host device. The client device may transmit a query signal if interested. The host device may determine whether the query signal is received on a resource designated for the query signal in response to the discovery preamble. The host device may transmit a discovery message in response to receiving the query signal.

公开(公告)号：US20210250150A1

公开(公告)日：2021-08-12

申请号：US17165140

申请日：2021-02-02

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan Wu ,  Kapil Gulati ,  Gabi Sarkis ,  Sudhir Kumar Baghel

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

Abstract: Methods, systems, and devices for sidelink wireless communications are described in which a transmitting device may determine a transport block size (TBS) for a sidelink data channel transmission and provide an indication in in sidelink control information (SCI) to allow a receiving device to determine the TBS to be used for decoding the sidelink communication. The indication provided in the SCI may be an explicit indication in an information element that indicates whether feedback channel resources are included or excluded when determining a number of symbols for use in a TBS determination. The indication provided in the SCI may also be an implicit indication based on one or more values of one or more parameters provided in the SCI. The sidelink communications devices may determine a same TBS across multiple instances of a sidelink data channel transmission that may be transmitted using slots having different slot formats.

公开(公告)号：US11076413B2

公开(公告)日：2021-07-27

申请号：US16716296

申请日：2019-12-16

Applicant: QUALCOMM incorporated

Inventor： Shailesh Patil ,  Sudhir Kumar Baghel

IPC: H04M1/00 ,  H04W72/12 ,  H04W74/08 ,  H04W4/40 ,  H04W88/06

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide identifying a first set of time intervals for transmissions in a channel using a first wireless communications technology (e.g., a set of LTE-V2X intervals reserved for LTE-V2X transmissions) and a second set of time interval designated for transmissions in the channel using a second wireless communications technology (e.g., a set of DSRC intervals reserved for DSRC transmissions). A UE may determine whether one of the sets of time intervals is available for transmitting V2X messages using one wireless communications technology by performing energy detection for a threshold amount of time. The UE may then, based on the results of the energy detection, transmit the V2X message using the first wireless communication technology during a second set of time intervals or during a subsequent first set of time intervals.

公开(公告)号：US20210227619A1

公开(公告)日：2021-07-22

申请号：US17147738

申请日：2021-01-13

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman Balasubramanian ,  Kapil Gulati ,  Sudhir Kumar Baghel ,  Shuanshuan Wu ,  Gabi Sarki ,  Tien Viet Nguyen ,  Hong Cheng

IPC: H04W76/28

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE), may receive, at a processing layer of the UE, sets of discontinuous reception (DRX) cycle parameters from a corresponding set of applications at an application layer of the UE. The UE may determine, based on the sets of DRX parameters, a common DRX cycle to satisfy each of the sets of applications. The UE may transmit the common DRX cycle to one or more layers in the user plane protocol stack of the UE. A base station may also receive a request, from the UE, for a set of DRX cycle parameters that satisfies the common DRX cycle of the UE. The base station may transmit an indication of the set of DRX parameters, and receive, from the UE, a confirmation of a DRX cycle associated with the set of DRX cycle parameters.

公开(公告)号：US20210219377A1

公开(公告)日：2021-07-15

申请号：US17147223

申请日：2021-01-12

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman Balasubramanian ,  Sudhir Kumar Baghel ,  Shuanshuan Wu ,  Gabi Sarkis ,  Tien Viet Nguyen ,  Kapil Gulati ,  Chang-Sik Choi

IPC: H04W76/28 ,  H04W76/27 ,  H04W76/11

Abstract: In a particular implementation, a method of wireless communication includes transmitting, from a first user equipment (UE) to a second UE, a radio resource control (RRC) request that includes a first discontinuous reception (DRX) preference at the first UE. The method also includes receiving, at the first UE from the second UE, a RRC setup message that includes a second DRX preference at the second UE. The method further includes transmitting, from the first UE to the second UE, a RRC setup complete message that includes an indication of a confirmed DRX cycle.