公开(公告)号：US20230092369A1

公开(公告)日：2023-03-23

申请号：US17480478

申请日：2021-09-21

Applicant: QUALCOMM Incorporated

Inventor： Satish Kumar ,  Sarath Pinayour Chandrasekaran ,  Gabi Sarkis

IPC: H04B7/155

Abstract: Methods, systems, and devices for wireless communications are described. Aspects of the present disclosure relate to an in-coverage user equipment (UE) relaying broadcast messages to out-of-coverage UEs using one or more messaging techniques over a sidelink channel. The in-coverage UE may monitor for broadcast messages to relay the broadcast messages to out-of-coverage UEs. In some cases, the in-coverage UE may determine to relay broadcast messages to the out-of-coverage UEs based on one or more metrics. Additionally, the in-coverage UE may determine whether the broadcast message is to be included in a groupcast, broadcast, or unicast signaling. Based on the determination to relay broadcast messages, as well as whether the alert message is to be included in a groupcast, broadcast, or unicast signaling, the in-coverage UE may leverage sidelink communications to relay broadcast messages to the out-of-coverage UEs.

公开(公告)号：US11601916B2

公开(公告)日：2023-03-07

申请号：US17090068

申请日：2020-11-05

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Tien Viet Nguyen ,  Gabi Sarkis ,  Sudhir Kumar Baghel

IPC: H04W72/02 ,  H04W24/08 ,  H04W72/12 ,  H04B17/318 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may measure the reference signal received power (RSRP) of reference signals from other UEs in a time window and exclude resources of transmissions with a measurement which is above RSRP threshold. In some cases, not enough resources are identified, and the UE may increase the RSRP and search for resources again, however the UE may only increase the RSRP until a stop RSRP limit is reached. The UE may increase the RSRP based on an absolute value or a factor of an incremental power value. Once the stop RSRP threshold is reached, the UE may modify the size of the time window, shift the time window, or reduce the number of retransmission of the sidelink message to search for resources for the sidelink message.

公开(公告)号：US11576126B2

公开(公告)日：2023-02-07

申请号：US17189997

申请日：2021-03-02

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman Balasubramanian ,  Sudhir Kumar Baghel ,  Shuanshuan Wu ,  Kapil Gulati ,  Wanshi Chen ,  Gabi Sarkis ,  Seyedkianoush Hosseini ,  Gokul Sridharan

IPC: H04W52/02

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application and may identify a mapping between an attribute of the signal and an identifier associated with the application. The UE may determine a wakeup procedure in response to receiving the signal based on the mapping between the attribute of the signal and the identifier associated with the application.

公开(公告)号：US20230036953A1

公开(公告)日：2023-02-02

申请号：US17392181

申请日：2021-08-02

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Ahmed Elshafie ,  Wei Yang ,  Alberto Rico Alvarino ,  Gabi Sarkis

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

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support enhanced sidelink carrier aggregation feedback operations. In a first aspect, a method of wireless communication includes receiving, by a wireless communication device, a sidelink shared channel transmission via a first component carrier. The method also includes obtaining, by the wireless communication device, a feedback resource indication. The method further includes transmitting, by the wireless communication device, a sidelink channel feedback transmission in a sidelink channel feedback transmission resource via a second component carrier different from the first component carrier. The sidelink channel feedback transmission resource is determined based on the feedback resource indication, and the sidelink channel feedback transmission indicates feedback data for the sidelink shared channel transmission. Other aspects and features are also claimed and described.

公开(公告)号：US11539456B2

公开(公告)日：2022-12-27

申请号：US16759255

申请日：2018-11-20

Applicant: QUALCOMM Incorporated

Inventor： Changlong Xu ,  Kai Chen ,  Jing Jiang ,  Gabi Sarkis ,  Hao Xu

IPC: H04L1/18 ,  H04L1/00 ,  H04L1/08

Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for rate-matching a stream of bits encoded using polar codes. An exemplary method generally includes determining a target coding rate, RT, for transmitting a group of K information bits, based on a first coding rate, R1, corresponding to a first target block error rate (BLER) for a first transmission of a first redundancy version (RV) of the packet and a second coding rate, R2, corresponding to a second target BLER for a last transmission of a last RV of the packet; determining a circular buffer size, N, of a circular buffer for use in transmitting the first RV and the last RV of the packet; generating encoded information bits from the K information bits using a polar code having a mother code size of N; writing the encoded information bits to the circular buffer; determining a maximum number of retransmissions, based on a latency requirement for the packet; generating different RVs from the encoded information bits in the circular buffer, each RV based on a corresponding target BLER; and transmitting the first RV via a wireless medium.

公开(公告)号：US11533155B2

公开(公告)日：2022-12-20

申请号：US16872210

申请日：2020-05-11

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Gabi Sarkis ,  Joseph Binamira Soriaga ,  Wanshi Chen

IPC: H04L5/10 ,  H04L5/00 ,  H04W72/12 ,  H04B7/0456 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine to bundle or not bundle demodulation reference signals (DMRS) of multiple downlink data transmissions using an indication from a base station. The indication may be transmitted via control signaling, such as downlink control information (DCI) from the base station to the UE. For example, a bit of the DCI may be used to dynamically indicate a current precoding in relation to a preceding precoding. For example, the bit may indicate if the current precoding is the same as a previous precoding (e.g., UE may bundle the DMRS), or the bit may indicate that the current precoding is different than the previous precoding (e.g., UE may not bundle DMRS).

公开(公告)号：US11457377B2

公开(公告)日：2022-09-27

申请号：US17069616

申请日：2020-10-13

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan Wu ,  Arthur Gubeskys ,  Sudhir Kumar Baghel ,  Gabi Sarkis ,  Kapil Gulati ,  Richard Reid Hovey ,  Deviprasad Putchala

IPC: H04W4/00 ,  H04W24/00 ,  H04W28/04 ,  H04W4/02 ,  H04W92/18

Abstract: Certain aspects of the present disclosure provide techniques for distance-based HARQ feedback transmission. A method that may be performed by a user equipment (UE) includes monitoring for a data transmission from another UE, receiving an indication of a first zone identifier (ID), determining a nearest zone to the UE of multiple zones, wherein the multiple zones are determined based at least in part on the indication of the first zone ID, determining a distance between the UE and the other UE based on the first zone ID, wherein the determined distance comprises a distance between the UE and the nearest zone, and transmitting hybrid automatic repeat request (HARQ) feedback for the data transmission based at least on the distance.

公开(公告)号：US20220248460A1

公开(公告)日：2022-08-04

申请号：US17163050

申请日：2021-01-29

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Elshafie ,  Ahmed Attia Abotabl ,  Gabi Sarkis

IPC: H04W74/08 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform, during at least a portion of a sensing window, a sensing process to identify a quantity of resources of a sidelink channel that are available for transmission by the UE during a selection window. The UE may terminate the sensing process before expiry of the sensing window based on the quantity of resources satisfying an early termination threshold. The UE may then transmit, during the selection window, a set of data over the sidelink channel using the quantity of resources.

公开(公告)号：US20220225160A1

公开(公告)日：2022-07-14

申请号：US17149628

申请日：2021-01-14

Applicant: QUALCOMM Incorporated

Inventor： Gabi Sarkis ,  Tien Viet Nguyen ,  Sourjya Dutta

IPC: H04W28/02 ,  H04W28/26 ,  H04W72/02 ,  H04W72/00

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may identify a conflict between sidelink messages in one or more sidelink resources of a set of sidelink resources reserved for communications by a second UE. In response to identifying the conflict, the first UE may measure a system load of a sidelink channel for the sidelink messages and may determine a threshold system load of the sidelink channel based on one or more priorities associated with the conflicting sidelink messages. If the system load satisfies the threshold system load, the first UE may transmit a message that indicates the conflict. Additionally, or alternatively, the first UE may transmit the conflict indication using a resource determined based on whether one or more of the conflicting sidelink messages are a broadcast sidelink message or a groupcast sidelink message.

公开(公告)号：US11343822B2

公开(公告)日：2022-05-24

申请号：US16218167

申请日：2018-12-12

Applicant: QUALCOMM Incorporated

Inventor： Gabi Sarkis ,  Chao Jin ,  Amir Aminzadeh Gohari ,  Yi Huang ,  Jing Jiang ,  Wanshi Chen

IPC: H04W80/08 ,  H04W72/04 ,  H04L1/00

Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for coded-bit allocation for UCI segmentation. An exemplary method that may be performed by a wireless device generally includes generating coded bits of uplink control information (UCI) to be transmitted as one or more segments, applying one or more rules to ensure an integer number of bits are allocated to each of the one or more segments, and transmitting the UCI in the segments according to the assignment.