公开(公告)号：US20220166566A1

公开(公告)日：2022-05-26

申请号：US17103259

申请日：2020-11-24

Applicant: QUALCOMM Incorporated

Inventor： Satish KUMAR ,  Siva Naga Raju UNDRAKUNTA ,  Harika LAVANURU ,  Sarath PINAYOUR CHANDRASEKARAN ,  Loksiva PARUCHURI ,  Ashok Kumar TRIPATHI ,  Raja Sekhar BACHU

IPC: H04L1/24 ,  H04L1/20 ,  H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for dynamic configuration of demodulation reference signals (DMRSs). A method that may be performed by a base station (BS) includes receiving one or more uplink signals from at least one user equipment (UE); estimating a Doppler shift associated with the one or more uplink signals; determining a density of reference signals (RSs) within a slot for the at least one UE based, at least in part, on the estimated Doppler shift associated with the one or more uplink signals; and transmitting information to the at least one UE indicating an allocation of RS resources for the UE, wherein the allocation of the RS resources is based on the density of the RSs for the at least one UE.

公开(公告)号：US20220286944A1

公开(公告)日：2022-09-08

申请号：US17190164

申请日：2021-03-02

Applicant: QUALCOMM Incorporated

Inventor： Satish KUMAR ,  Sarath PINAYOUR CHANDRASEKARAN

IPC: H04W48/14 ,  H04W72/04 ,  H04W74/08 ,  H04W48/16

Abstract: A first base station is disclosed. The first base station may transmit, to a second BS, at least one PRACH preamble for requesting OSI. The first base station may receive a PDCCH and an associated PDSCH, the PDSCH including the OSI. Prior to transmitting the at least one PRACH, the first base station may scan for neighboring BSs. The first base station may determine, based on first quality metrics associated with the neighboring BSs, a set of BSs, the set of BSs including the second BS. The first station may obtain a MIB and at least one SIB from each of the set of BSs. The at least one PRACH preamble may be transmitted to the second BS based on the obtained MIB and the at least one SIB from the second BS.

公开(公告)号：US20220248393A1

公开(公告)日：2022-08-04

申请号：US17163263

申请日：2021-01-29

Applicant: QUALCOMM Incorporated

Inventor： Sarath PINAYOUR CHANDRASEKARAN ,  Loksiva PARUCHURI ,  Satish KUMAR

IPC: H04W72/04 ,  H04B1/713 ,  H04W52/14

Abstract: A base station (BS) may receive at least one system information block (SIB) from one or more neighbor BSs, extract a physical uplink control channel (PUCCH) common configuration from the SIB for each of the one or more neighbor BSs, and select one or more PUCCH common configuration parameters for the BSs to avoid having a same PUCCH common configuration as the one or more neighbor base stations, the same PUCCH common configuration including at least one of a PUCCH hopping parameter or a common PUCCH resource.

公开(公告)号：US20230044375A1

公开(公告)日：2023-02-09

申请号：US17444443

申请日：2021-08-04

Applicant: QUALCOMM Incorporated

Inventor： Sarath PINAYOUR CHANDRASEKARAN ,  Satish KUMAR

IPC: H04W72/04 ,  H04W72/02 ,  H04L5/00

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：US20200304251A1

公开(公告)日：2020-09-24

申请号：US16805524

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

Inventor： Sarath PINAYOUR CHANDRASEKARAN ,  Loksiva PARUCHURI

IPC: H04L1/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a transmission comprising an indication of at least one failed code block group in a plurality of code block groups, wherein a code block group comprises a plurality of code blocks, re-assign code blocks to different code block groups (CBGs) according to a total number of code blocks (CBs) across the at least one failed code block group (CBG) and a maximum number of code block groups (CBGs) per a transport block (TB), and configure a retransmission based on the re-assigned code blocks (CBs).

公开(公告)号：US20230370236A1

公开(公告)日：2023-11-16

申请号：US17745446

申请日：2022-05-16

Applicant: QUALCOMM Incorporated

Inventor： Satish KUMAR ,  Sarath PINAYOUR CHANDRASEKARAN ,  Xiaoxia ZHANG

IPC: H04L5/00 ,  H04L1/00

CPC classification number: H04L5/0092 ,  H04L5/001 ,  H04L5/0051 ,  H04L1/0003

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for performing phase compensation. In some aspects, a user equipment (UE) can receive, from a network node, a configuration indicating a reduced number of multiple configured component carrier (CCs) over which to process one or more phase tracking reference signals (PTRSs) for performing phase compensation for the multiple configured CCs, receiving, over the reduced number of multiple configured CCs, the one or more PTRSs, and performing, based on the one or more PTRSs, phase compensation for the multiple configured CCs. In other aspects, the network node can transmit the configuration and/or the one or more PTRSs.

公开(公告)号：US20230132509A1

公开(公告)日：2023-05-04

申请号：US17516455

申请日：2021-11-01

Applicant: QUALCOMM Incorporated

Inventor： Satish KUMAR ,  Sarath PINAYOUR CHANDRASEKARAN ,  Xiaoxia ZHANG

IPC: H04L5/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide a method for wireless communication by a user equipment (UE). The UE receives an indication of a phase tracking reference signal (PTRS) hopping offset from a network entity. The UE may process PTRSs transmitted in different transmissions across multiple symbols or time slots. In one example, processing the PTRSs may include transmitting the PTRSs in uplink (UL) slots. In another example, processing the PTRSs may include monitoring for the PTRSs in downlink (DL) slots. Frequency resources for the PTRSs may change across the different transmissions based on the PTRS hopping offset.

公开(公告)号：US20240224241A1

公开(公告)日：2024-07-04

申请号：US18148613

申请日：2022-12-30

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Sarath PINAYOUR CHANDRASEKARAN ,  Satish KUMAR

IPC: H04W72/0446 ,  H04L5/00 ,  H04W72/23

CPC classification number: H04W72/0446 ,  H04L5/0051 ,  H04W72/23

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a network node, an uplink transmission in an uplink slot, the uplink slot being associated with a first demodulation reference signal (DMRS) pattern having a first DMRS density. The UE may receive, from the network node, a downlink transmission in a downlink slot, the downlink slot being associated with a second DMRS pattern having a second DMRS density. Numerous other aspects are described.

公开(公告)号：US20230370226A1

公开(公告)日：2023-11-16

申请号：US17663094

申请日：2022-05-12

Applicant: QUALCOMM Incorporated

Inventor： Satish KUMAR ,  Sarath PINAYOUR CHANDRASEKARAN ,  Xiaoxia ZHANG

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0092

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：US20230199557A1

公开(公告)日：2023-06-22

申请号：US18000255

申请日：2021-07-09

Applicant: QUALCOMM Incorporated

Inventor： Satish KUMAR ,  Tushar SINGH ,  Sarath PINAYOUR CHANDRASEKARAN ,  Loksiva PARUCHURI

IPC: H04W28/06 ,  H03M7/30 ,  H04W8/22

CPC classification number: H04W28/06 ,  H03M7/6011 ,  H03M7/607 ,  H04W8/22

Abstract: Aspects of the present disclosure relate to techniques for signal compression. Certain aspects described in this disclosure can be implemented in a method for wireless communication by a distributed unit (DU). The method generally includes compressing at least one reference signal (RS) in one or more first set of resource elements (REs) of a symbol and data in one or more second set of REs of the symbol, wherein the at least one RS is compressed using a first compression type and the data is compressed using a second compression type, and wherein the first compression type is different than the second compression type; and sending, to a radio unit (RU), the symbol having the at least one RS in the one or more first set of REs and the data in the one or more second set of REs compressed using the first and second compression types, respectively.