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：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.

公开(公告)号：US11057854B2

公开(公告)日：2021-07-06

申请号：US16156874

申请日：2018-10-10

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet Nguyen ,  Kapil Gulati ,  Sudhir Kumar Baghel ,  Shailesh Patil ,  Libin Jiang ,  Zhibin Wu

IPC: H04W56/00 ,  H04W4/46 ,  H04W4/70 ,  H04W76/14 ,  H04W76/27 ,  H04W72/04 ,  H04W72/10 ,  H04W4/80 ,  H04W48/00 ,  H04W4/06 ,  H04W4/40

Abstract: Features of the present disclosure implementing techniques that allow the user equipment (UE) to autonomously (e.g., without the network control) manage timing synchronization of a plurality of carriers using sidelink synchronization signal (SLSS) from one or more other UEs in order to identify a synchronization source. A synchronization source associated with a frequency carrier from a set of frequency carriers may be selected according to one or more SLSS sync source selection techniques or rules. For instance, the described solution may be utilized to enable UEs to autonomously perform V2X carrier aggregation (CA). In some examples, the synchronization carrier(s) to be searched may be determined based on the SLSS capability of the UE (e.g., transmission and reception of SLSS capabilities of the UE).

公开(公告)号：US20210195576A1

公开(公告)日：2021-06-24

申请号：US17121321

申请日：2020-12-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W72/12 ,  H04W72/08 ,  H04W52/34

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit concurrent messages over a sidelink channel to another UE and over an uplink channel to a base station. The UE may transmit, to a base station, a report indicating a capability of the UE to concurrently transmit over a sidelink channel and an uplink channel. The UE may receive, from the base station and based on the report, a transmission configuration scheduling a concurrent sidelink and uplink transmission within a resource shared by the sidelink channel and the uplink channel. The UE may then transmit the concurrent sidelink and uplink transmission within the resource shared by the sidelink channel and the uplink channel based on the transmission configuration. The other UE and the base station may receive the concurrent sidelink and uplink transmission and may decode different layers of the transmission.

公开(公告)号：US20210159946A1

公开(公告)日：2021-05-27

申请号：US16692916

申请日：2019-11-22

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Mohammad Ali Tassoudji ,  Yu-Chin Ou ,  Kobi Ravid ,  Ozge Koymen ,  Juergen Cezanne ,  Junyi Li ,  Kapil Gulati ,  Jung Ho Ryu ,  Tianyang Bai

IPC: H04B7/0404 ,  H01Q21/24 ,  H04B7/06 ,  H01Q21/06

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a first device and a second device may communicate over a communication link using a set of antenna elements. The first device may identify one or more antenna array reconfiguration trigger conditions and may correspondingly select a first subset of antenna elements for operation. The first device may transmit a message to the second device including an indication of the antenna array reconfiguration at the first device, a request for the second device to modify the second device's antenna array configuration, or both. The second device may receive the message and, based on the indication or the request, may modify its antenna array configuration. For example, the second device may select a second subset of antenna elements based on the selected first subset of antenna elements. The devices may communicate using their modified antenna array configurations.

公开(公告)号：US20210144682A1

公开(公告)日：2021-05-13

申请号：US17090449

申请日：2020-11-05

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/02 ,  H04W24/08 ,  H04W72/10 ,  H04L5/00 ,  H04W28/26 ,  H04W4/40

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques relate to the categorization of resources in a system to enable a user equipment (UE) to determine whether resources may be reclaimed. At least two categories may be defined for the resources, and the UE may use various criteria for categorizing the resources in a system. For example, the UE may include a first set of resources in an “available” category and a second set of resources in an “occupied” category. Resources in the “occupied” category may be indicated as occupied by another UE's sidelink channel information. In cases where resources are indicated as reserved for retransmission by another UE, but no feedback is detected, then the UE may use additional parameters to determine whether those resources may be reclaimed for its own transmission and may categorize the resources accordingly.