公开(公告)号：US12284129B2

公开(公告)日：2025-04-22

申请号：US17663094

申请日：2022-05-12

Applicant: QUALCOMM Incorporated

Inventor： Satish Kumar ,  Sarath Pinayour Chandrasekaran ,  Xiaoxia Zhang

IPC: H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive an indication of a non-uniform density associated with a phase-tracking reference signal (PT-RS). Accordingly, the UE may transmit, or receive, within a slot, wherein the slot includes the PT-RS at the non-uniform density across a plurality of symbols of the slot. For example, the non-uniform density may be applied based on an offset between the slot and a previous downlink slot including a demodulation reference signal. Numerous other aspects are described.

公开(公告)号：US12200754B2

公开(公告)日：2025-01-14

申请号：US17508680

申请日：2021-10-22

Applicant: QUALCOMM Incorporated

Inventor： Sarath Pinayour Chandrasekaran ,  Satish Kumar

IPC: H04W74/00 ,  H04W74/0833 ,  H04W76/10

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may transmit a first random access preamble to a base station and may transmit a payload associated with the first random access preamble via a first random access message as part of a two-step random access procedure. The base station may receive the first random access message and attempt to detect the first random access preamble. The base station may identify multiple random access preamble indices based on a detected random access preamble and may perform multiple decoding attempts on the payload portion of the first random access message using the multiple random access preamble indices. The base station may perform the multiple decoding attempts sequentially until one decoding attempt is successful or may perform the multiple decoding attempts in parallel.

公开(公告)号：US11576203B2

公开(公告)日：2023-02-07

申请号：US16952784

申请日：2020-11-19

Applicant: QUALCOMM Incorporated

Inventor： Satish Kumar ,  Loksiva Paruchuri ,  Ashok Kumar Tripathi

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

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may determine, based at least in part on a configuration of a first random access channel associated with a macro cell, one or more parameters of a configuration of a second random access channel associated with a small cell provided by the base station. The base station may transmit an indication of the one or more parameters of the configuration of the second random access channel. Numerous other aspects are provided.

公开(公告)号：US20230017755A1

公开(公告)日：2023-01-19

申请号：US17376035

申请日：2021-07-14

Applicant: QUALCOMM Incorporated

Inventor： Amit Priyadarshi ,  Satish Kumar

IPC: H04W74/04 ,  H04L1/08 ,  H04W52/14 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a base station may recover a UE from a Msg3 failure during an RA procedure. During the RA procedure, the base station may transmit a RAR message to the UE and in response to the RAR message the UE may transmit an uplink message (e.g., Msg3) to the base station over a first resource indicated in the RAR message. If the base station fails to decode or receive the uplink message over the first resource, the base station may transmit a grant to the UE indicating a second resource for retransmitting the uplink message and the UE may retransmit uplink message to the base station according to the grant.

公开(公告)号：US12289262B2

公开(公告)日：2025-04-29

申请号：US17457636

申请日：2021-12-03

Applicant: QUALCOMM Incorporated

Inventor： Satish Kumar ,  Sarath Pinayour Chandrasekaran ,  Xiaoxia Zhang

IPC: H04L5/00 ,  H04W72/044

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for PT-RS configurations in persistent, semi-persistent, and aggregated modes of transmission. A first wireless device may be configured to communicate with a second wireless device based on a configuration in which one or more reception slots follow a transmission period or a gap period. The first wireless device may receive, from the second wireless device, communication in the one or more reception slots following the transmission period or the gap period with a reference signal configuration that is different than at least one additional reception slot.

公开(公告)号：US12022437B2

公开(公告)日：2024-06-25

申请号：US17384401

申请日：2021-07-23

Applicant: QUALCOMM Incorporated

Inventor： Satish Kumar ,  Sarath Pinayour Chandrasekaran ,  Gabi Sarkis

IPC: H04W72/00 ,  H04W8/24 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/20

CPC classification number: H04W72/02 ,  H04W8/24 ,  H04W72/0453 ,  H04W72/20

Abstract: The apparatus may be a UE. The UE may be configured to receive, from a second UE, an indication of a first DC location corresponding to a first subcarrier of multiple subcarriers. The UE may further be configured to decode at least one transmission from the second UE based on the received indication of the first DC location corresponding to the first subcarrier. The UE may also be configured to receive a request for a second DC location and to transmit, to the second UE, an indication of a second DC location corresponding to a second subcarrier of the multiple subcarriers. The UE may, in some aspects, further be configured to receive, from a base station, signaling relating to a transmission of a DC location between sidelink UEs.

公开(公告)号：US11889507B2

公开(公告)日：2024-01-30

申请号：US17444443

申请日：2021-08-04

Applicant: QUALCOMM Incorporated

Inventor： Sarath Pinayour Chandrasekaran ,  Satish Kumar

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/02 ,  H04W72/21 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04W72/21 ,  H04L5/0051 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/0453

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may extract, from a neighboring base station with cell coverage that overlaps cell coverage of the base station, information associated with user equipment (UE) transmission of MsgA messages. The base station may select, based at least in part on the information, a physical uplink shared channel (PUSCH) resource to allocate to a UE for transmission of a MsgA message. The base station may transmit, to the UE, an allocation of the PUSCH resource. Numerous other aspects are described.

公开(公告)号：US20240032104A1

公开(公告)日：2024-01-25

申请号：US18252468

申请日：2022-01-25

Applicant: QUALCOMM Incorporated

Inventor： Sarath Pinayour Chandrasekaran ,  Rekha Devi Bhoopatiraju ,  Satish Kumar

IPC: H04W74/08 ,  H04L5/14

CPC classification number: H04W74/0833 ,  H04L5/14

Abstract: In one aspect of the disclosure, a method for wireless communication performed by base station includes receiving a first system information block of type 1 (SIB1) transmitted by a second base station. The transmission of the first SIB1 is based on a first plurality of physical random access channel (PRACH) parameters that are based on one or more first PRACH root sequences associated with the second base station. The method further includes transmitting a second SIB1 based on a second plurality of PRACH parameters that are based on a second PRACH root sequence selected as not to be one of the one or more first PRACH root sequences.

公开(公告)号：US11832300B2

公开(公告)日：2023-11-28

申请号：US17376035

申请日：2021-07-14

Applicant: QUALCOMM Incorporated

Inventor： Amit Priyadarshi ,  Satish Kumar

IPC: H04W74/00 ,  H04W74/04 ,  H04W72/0453 ,  H04W52/14 ,  H04L1/08

CPC classification number: H04W74/04 ,  H04L1/08 ,  H04W52/146 ,  H04W72/0453

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a base station may recover a UE from a Msg3 failure during an RA procedure. During the RA procedure, the base station may transmit a RAR message to the UE and in response to the RAR message the UE may transmit an uplink message (e.g., Msg3) to the base station over a first resource indicated in the RAR message. If the base station fails to decode or receive the uplink message over the first resource, the base station may transmit a grant to the UE indicating a second resource for retransmitting the uplink message and the UE may retransmit uplink message to the base station according to the grant.

公开(公告)号：US11818772B2

公开(公告)日：2023-11-14

申请号：US17512429

申请日：2021-10-27

Applicant: QUALCOMM Incorporated

Inventor： Satish Kumar ,  Tushar Singh ,  Sarath Pinayour Chandrasekaran

IPC: H04W74/08 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04W74/0841 ,  H04L5/0012 ,  H04L5/0051 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0866

Abstract: An open radio access network (O-RAN) may include a control unit that communicates with a core network, a distributed unit that communicates with the control unit, a radio unit that communicates with the distributed unit and a user equipment (UE). Currently, the O-RAN may lack support for static configuration for a physical uplink shared channel (PUSCH) communication of message-A in a third generation partnership project (3GPP) two-step random access procedure. Hence, according to some aspects of the disclosure, the distributed unit may receive, from a radio unit, a static configuration support indication for receiving payload data via a message in a two-step random access procedure, the message including a preamble and the payload data. The distributed unit may further transmit, in response to receiving the static configuration support indication, static configuration information to the radio unit, the static configuration information for receiving the payload data communicated via the message.