公开(公告)号：US20210152226A1

公开(公告)日：2021-05-20

申请号：US16949859

申请日：2020-11-17

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar BAGHEL ,  Kapil GULATI ,  Gabi SARKIS ,  Chang-Sik CHOI

IPC: H04B7/06 ,  H04L5/00 ,  H04W76/11 ,  H04W80/02 ,  H04L1/18 ,  H04B7/0456 ,  H04W72/14 ,  H04L1/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a target user equipment (UE) may receive a channel state information (CSI) reference signal (RS) from a source UE via a sidelink communication; determine that a lower-layer determined source identifier of the source UE is included in a set of upper-layer determined source identifiers; and transmit a CSI report in a media access control (MAC) control element (CE) as a response to the CSI RS, based at least in part on the determination that the lower-layer determined source identifier of the source UE is included in a set of upper-layer determined source identifiers. Numerous other aspects are provided.

公开(公告)号：US20210144691A1

公开(公告)日：2021-05-13

申请号：US16947913

申请日：2020-08-24

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman BALASUBRAMANIAN ,  Shuanshuan WU ,  Sudhir Kumar BAGHEL ,  Kapil GULATI ,  Sony AKKARAKARAN

IPC: H04W72/04 ,  H04L1/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, on a sidelink, a groupcast communication and a unicast communication concurrently from a transmitter. The UE may determine a feedback sequence to be transmitted to indicate joint acknowledgment or negative acknowledgement feedback for the groupcast communication and the unicast communication based at least in part on a decoding of the groupcast communication. The UE may transmit the feedback sequence in one or more sidelink feedback resources associated with a sidelink subchannel via which at least one of the groupcast communication or the unicast communication is received. Numerous other aspects are provided.

公开(公告)号：US20210105746A1

公开(公告)日：2021-04-08

申请号：US17062049

申请日：2020-10-02

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Kapil GULATI ,  Tien Viet NGUYEN ,  Shuanshuan WU ,  Sudhir Kumar BAGHEL

IPC: H04W72/04 ,  H04L1/18

Abstract: Techniques and apparatus for managing release of resource reservations for sidelink communications are provided. At least one resource reservation is determined from a resource pool having time-frequency resources allocated for sidelink communications with one or more user equipments. Control information that includes an indication of the at least one resource reservation and an indication of whether the at least one resource reservation is releasable is transmitted. A determination of whether to reclaim the at least one resource reservation is made, based on the control information. A set of resource reservations is selected from the resource pool for sidelink communications, based on the determination.

公开(公告)号：US20210105054A1

公开(公告)日：2021-04-08

申请号：US17061269

申请日：2020-10-01

Applicant: QUALCOMM Incorporated

Inventor： Kapil GULATI ,  Sudhir Kumar BAGHEL ,  Gabi SARKIS

IPC: H04B7/06 ,  H04W72/04 ,  H04B7/0456 ,  H04L1/00 ,  H04L5/00

Abstract: In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for transmitting, by a network entity to a user equipment (UE), a first sidelink control message (CCH-1), wherein the CCH-1 includes at least control information that indicates a resource allocation of data and decoding information for decoding a second sidelink control message (CCH-2); transmitting, by the network entity to the UE, the CCH-2, wherein the CCH-2 includes one or more of control information for decoding data and one or more channel state information (C SI) reports; and transmitting, by the network entity to the UE, the data based on the CCH-1 and CCH-2.

公开(公告)号：US20210099975A1

公开(公告)日：2021-04-01

申请号：US17031590

申请日：2020-09-24

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan WU ,  Kapil GULATI ,  Sudhir Kumar BAGHEL ,  Gabi SARKIS ,  Tien Viet NGUYEN

IPC: H04W72/02 ,  H04W72/04 ,  H04L1/18

Abstract: Certain aspects of the present disclosure provide techniques for sidelink feedback in resource pool. A first user equipment (UE) can determine a slot, from a resource pool including a plurality of slots allocated for sidelink communications, for providing hybrid automatic repeat request (HARQ) feedback to a second UE via a sidelink channel. The determination may be based on a physical slot index or a logical slot index. The first UE may send the HARQ feedback on the sidelink channel in the slot, or refrain from sending the HARQ feedback, based on the determination. The first UE may determine the slot has a first slot index that is at least a preconfigured number of slots after a slot scheduled for sidelink data transmission having a second slot index

公开(公告)号：US20210084701A1

公开(公告)日：2021-03-18

申请号：US17107938

申请日：2020-11-30

Applicant: QUALCOMM Incorporated

Inventor： Kapil GULATI ,  Shailesh PATIL ,  Tien Viet NGUYEN ,  Sudhir Kumar BAGHEL

IPC: H04W76/14 ,  H04W72/04 ,  H04L5/00 ,  H04L1/18

Abstract: Wireless communication apparatus and methods related to wireless communication, for example, device-to-device feedback are described. In aspects, a method of wireless communication may include communicating a sidelink traffic communication using a sidelink communication structure, and communicating an allotting for sidelink feedback using at least one feedback symbol of the sidelink communication structure. In aspects, the method includes communicating, by a first wireless communication device, a sidelink feedback communication using at least one feedback symbol of the sidelink communication structure, wherein the sidelink feedback communication is associated with the sidelink traffic communication. Numerous other aspects are provided.

公开(公告)号：US20210051737A1

公开(公告)日：2021-02-18

申请号：US16992957

申请日：2020-08-13

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Tien Viet NGUYEN ,  Kapil GULATI

IPC: H04W74/08 ,  H04W52/14 ,  H04W72/12 ,  H04W76/14

Abstract: A sidelink device is capable of balancing latency and reliability while accounting for priority in sidelink based communication. A sidelink device determines an exclusion parameter for excluding communication resources for transmitting a data packet over a sidelink channel. The sidelink device selects, based on the exclusion parameter, communication resources for an initial transmission of the data packet in a first contention window (CW). The sidelink device transmits the data packet using the communication resources selected for the initial transmission in the first CW. The sidelink device selects, based on the exclusion parameter, communication resources for a retransmission for the data packet in a second CW after the first CW. The sidelink device transmits the data packet using the communication resources selected for the retransmission in the second CW.

公开(公告)号：US20210045062A1

公开(公告)日：2021-02-11

申请号：US16986130

申请日：2020-08-05

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho RYU ,  Kapil GULATI ,  Tianyang BAI ,  Junyi LI ,  Sony AKKARAKARAN ,  Tao LUO ,  Vasanthan RAGHAVAN

IPC: H04W52/10 ,  H04W56/00 ,  H04W24/10 ,  H04W52/24 ,  H04B17/318 ,  H04L25/02 ,  H04L5/00

Abstract: In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for receiving, by a user equipment (UE) from a base station, a plurality of synchronization reference signals; measuring, by the UE, a respective Reference Signal Received Power (RSRP) value of each of the plurality synchronization reference signals; determining, by the UE, a highest RSRP value from each of the respective RSRP values; and calculating, by the UE, a downlink pathloss associated with a sidelink open loop power control based on the highest RSRP value.

公开(公告)号：US20210037513A1

公开(公告)日：2021-02-04

申请号：US16943893

申请日：2020-07-30

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan WU ,  Kapil GULATI ,  Sudhir Kumar BAGHEL ,  Arthur GUBESKYS

IPC: H04W72/04 ,  H04W72/00

Abstract: Certain aspects of the present disclosure provide techniques for transmitting system information on sidelink. A method that may be performed by a first user equipment (UE) includes receiving first system information from a second UE; determining, based on one or more first parameters, to receive second system information from the second UE; receiving the second system information in a sidelink system information block (S-SIB) from the second UE; and communicating with the second UE via sidelink resources determined based on the first system information and the second system information.

公开(公告)号：US20210029729A1

公开(公告)日：2021-01-28

申请号：US16937292

申请日：2020-07-23

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Jianghong LUO ,  Kapil GULATI ,  Luca BLESSENT ,  Tao LUO ,  Junyi LI ,  Wanshi CHEN

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04W76/27 ,  H04W88/14

Abstract: Aspects of the present disclosure provide techniques of allocating time resources (or slots) based on a flexible pattern that allows allocation of a set of non-continuous time slots resources in an integrated access and backhaul (IAB) system. In one example, the aggregation pattern may be indicated via a single downlink control information (DCI) message that carries explicit information regarding non-continuous time slot allocation. Features of the present disclosure may also include techniques to allow for early termination of transmission between the first node and the second node when the receiver (e.g., second node) successfully receives the data channel before the end of aggregated transmission. In such situation, the first node and the second node may cease transmission after reception of an acknowledgement (ACK) message that may allow the second node to utilize the subsequent time slots for communication with its own children on the next hop (e.g., third node).