公开(公告)号：US20250039906A1

公开(公告)日：2025-01-30

申请号：US18825294

申请日：2024-09-05

Applicant: QUALCOMM Incorporated

Inventor： Le LIU ,  Kazuki TAKEDA ,  Alberto RICO ALVARINO ,  Prasad Reddy KADIRI ,  Sitaramanjaneyulu KANAMARLAPUDI

IPC: H04W72/30 ,  H04W72/044 ,  H04W72/23 ,  H04W72/56

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a first common frequency resource (CFR) configured for multicast downlink communications and associated with a first bandwidth part, and an indication of a second CFR configured for broadcast downlink communications and associated with a second bandwidth part. The UE may determine whether to switch a bandwidth part for receiving downlink communications based at least in part on the indication of the first CFR and the indication of the second CFR. Numerous other aspects are provided.

公开(公告)号：US20230345509A1

公开(公告)日：2023-10-26

申请号：US18044779

申请日：2021-10-08

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy KADIRI ,  Le LIU ,  Xipeng ZHU ,  Miguel GRIOT ,  Alberto RICO ALVARINO ,  Umesh PHUYAL ,  Haris ZISIMOPOULOS ,  Kazuki TAKEDA ,  Ozcan OZTURK

IPC: H04W72/12 ,  H04W72/30 ,  H04W72/232

CPC classification number: H04W72/30 ,  H04W72/12 ,  H04W72/232

Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support multicast communications, which may relate to a multicast service (for example, a multimedia broadcast multicast service (MBMS)). A communications device such as a UE may transition from an inactive or idle state to a connected state to receive multicast services and provide feedback to the network. A wireless network may implement different techniques to trigger the UE to transition from the idle or inactive state into the RRC connected state to receive multicast services. For example, the UE may receive a trigger message that indicates that the one or more multicast services are available for use by the UE, and the UE may determine whether to transition to an RRC connected state to receive the multicast services based on the trigger message.

公开(公告)号：US20230319627A1

公开(公告)日：2023-10-05

申请号：US18331488

申请日：2023-06-08

Applicant: QUALCOMM Incorporated

Inventor： Sitaramanjaneyulu KANAMARLAPUDI ,  Leena ZACHARIAS ,  Arnaud MEYLAN ,  Prasad Reddy KADIRI ,  Vishal DALMIYA ,  Vaishakh RAO ,  Ashwin MADHUR COMANDUR

IPC: H04W28/04 ,  H04W28/02 ,  H04L1/1867 ,  H04L1/1829 ,  H04W72/23

CPC classification number: H04W28/04 ,  H04W28/0278 ,  H04L1/1896 ,  H04L1/1848 ,  H04L1/1864 ,  H04W72/23 ,  H04L1/0061

Abstract: Wireless communication systems and methods related to Radio Link Control (RLC) status reporting are provided. A wireless communication device receives one or more radio link control (RLC) packet data units (PDUs) of a sequence of RLC PDUs. The wireless communication device determines missing RLC data PDUs in the sequence of RLC PDUs based on the received one or more RLC PDUs. The wireless communication device receives a first uplink (UL) grant. The wireless communication device transmits a first RLC status report including an indication of a first subset of the missing RLC PDUs less than all the missing RLC PDUs, the indication of the first subset of missing PDUs being based on a size of the first UL grant. The wireless communication device modifies a RLC status prohibit timer based on the transmitted first RLC status report indicating less than all the missing RLC PDUs.

公开(公告)号：US20230117359A1

公开(公告)日：2023-04-20

申请号：US17937721

申请日：2022-10-03

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy KADIRI ,  Xipeng ZHU ,  Miguel GRIOT ,  Alberto RICO ALVARINO ,  Umesh PHUYAL ,  Le LIU ,  Kazuki TAKEDA ,  Luis Fernando Brisson LOPES

IPC: H04W56/00 ,  H04W4/06 ,  H04W76/12

Abstract: A central unit (CU) transmits synchronization timing information for a multicast broadcast service (MBS) single frequency network (SFN) data transmission in a synchronous manner to multiple distributed units (DUs). The CU transmits the MBS SFN data transmission to the multiple DUs for synchronous transmission to one or more user equipments (UEs). A DU receives synchronization timing information for a MBS SFN data transmission in a synchronous manner with at least one additional DU. The DU transmits the MBS SFN data transmission with a timing based on the synchronization timing information.

公开(公告)号：US20220225467A1

公开(公告)日：2022-07-14

申请号：US17248213

申请日：2021-01-14

Applicant: QUALCOMM Incorporated

Inventor： Bharat SHRESTHA ,  Mungal Singh DHANDA ,  Umesh PHUYAL ,  Alberto RICO ALVARINO ,  Ayan SENGUPTA ,  Prasad Reddy KADIRI

IPC: H04W76/28 ,  H04L1/08 ,  H04L1/18 ,  H04L12/841

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may start a timer after a repetition of a communication, where calculation of a length of the timer includes an offset that corresponds to a propagation delay between the UE and a base station via a non-terrestrial network (NTN) entity. The UE may start a discontinuous reception (DRX) retransmission timer after expiration of the timer. Numerous other aspects are described.

公开(公告)号：US20220167358A1

公开(公告)日：2022-05-26

申请号：US17435595

申请日：2020-03-19

Applicant: QUALCOMM INCORPORATED

Inventor： Peng CHENG ,  Prashanth Haridas HANDE ,  Prasad Reddy KADIRI ,  Arvind Vardarajan SANTHANAM ,  Huichun LIU

IPC: H04W72/08 ,  H04W72/04 ,  H04W52/52 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently performing measurements and other functions in preparation for communicating with a base station on a secondary cell (SCell). In particular, a user equipment (UE) may switch to a certain bandwidth part (BWP) (e.g., a dormant BWP) on an SCell when the SCell is deactivated, and the UE may perform the appropriate measurements and functions on this BWP (e.g., based on reference signals received on this BWP). In some cases, the UE may determine to switch to the BWP for performing the appropriate measurements and functions based on an inactivity timer expiring or based on an indication from a base station (e.g., on a primary cell (PCell)). Accordingly, once the UE activates the SCell for communications with a base station, the latency associated with preparing for communicating on the SCell may be reduced.

公开(公告)号：US20220038243A1

公开(公告)日：2022-02-03

申请号：US17379861

申请日：2021-07-19

Applicant: QUALCOMM Incorporated

Inventor： Bharat SHRESTHA ,  Umesh PHUYAL ,  Prasad Reddy KADIRI

IPC: H04L5/00 ,  H04L1/18 ,  H04W72/12 ,  H04W72/14

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for enabled/disabled HARQ feedback and HARQ-less processes. A base station may configure a plurality of logical channels for a UE, where one or more of the logical channels have an associated HARQ process. The UE may receive an allocation of resources from the base station for an uplink grant or a downlink assignment and determine whether the resources have associated HARQ process without HARQ feedback but with HARQ retransmission, an associated HARQ process without HARQ feedback and without HARQ retransmission, or an associated HARQ process with HARQ feedback and with HARQ retransmission. The UE may exchange communication with the base station based on the allocation of resources and the determination of whether the resources have one of the associated HARQ processes.

公开(公告)号：US20220038214A1

公开(公告)日：2022-02-03

申请号：US17389059

申请日：2021-07-29

Applicant: QUALCOMM Incorporated

Inventor： Bharat SHRESTHA ,  Xiao Feng WANG ,  Alberto RICO ALVARINO ,  Umesh PHUYAL ,  Peter GAAL ,  Liangping MA ,  Ayan SENGUPTA ,  Prasad Reddy KADIRI ,  Dan ZHANG

IPC: H04L1/18 ,  H04L1/08

Abstract: In a communication between a user equipment (UE) and a network node, the UE may receive a grant of uplink (UL) shared channel (SCH) resources from the network node. Each of the UL SCH resources may be associated with one of a plurality of hybrid automatic repeat request (HARQ) processes. Each HARQ process may be at least one of a plurality of HARQ process types, and each HARQ process type may be based on HARQ feedback status and HARQ retransmission status. The UE may transmit a control message on one or more UL SCH resources in response to the one or more UL SCH resources being determined to be usable based on the HARQ process type of the HARQ processes associated with the one or more of the UL SCH resources.

公开(公告)号：US20210368547A1

公开(公告)日：2021-11-25

申请号：US17326229

申请日：2021-05-20

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy KADIRI ,  Bharat SHRESTHA ,  Mungal Singh DHANDA ,  Umesh PHUYAL

IPC: H04W74/08 ,  H04W76/10 ,  H04W8/24 ,  H04W8/02 ,  H04W60/00 ,  H04L5/00

Abstract: A base-station (BS) receiving a random access request from user equipment (a UE), followed by a connection request. The connection request contains UE identity information which may have one of multiple formats depending on whether the access request and/or the connection request indicate that the UE is operating as a bandwidth-limited (BL) UE, an enhanced coverage (CE) UE, or a UE that operates in neither the BL mode nor the CE mode. In the BL mode, the UE may transmit a truncated identifier that is sufficient for the BS to retrieve capability information for the UE prior to transmitting a resource grant to the UE. The BS may then configure the UE and BS to using a radio configuration optimized for the UE's capabilities and transmit the resource grant in accordance with the optimized configuration.

公开(公告)号：US20210251012A1

公开(公告)日：2021-08-12

申请号：US17165272

申请日：2021-02-02

Applicant: QUALCOMM Incorporated

Inventor： Bharat SHRESTHA ,  Umesh PHUYAL ,  Alberto RICO ALVARINO ,  Xiao Feng WANG ,  Prasad Reddy KADIRI ,  Le LIU ,  Liangping MA

IPC: H04W74/08 ,  H04W56/00 ,  H04W74/00 ,  H04W72/04

Abstract: A method of wireless communication by a user equipment (UE) calculates a propagation delay for sending a message from the UE to a network node, such as a base station, via non-terrestrial communications. The method sends a random access preamble to the base station while accounting for the calculated propagation delay. The method starts a random access response (RAR) window at a first physical downlink control channel (PDCCH) occasion after twice the calculated propagation delay from sending the random access preamble. The method receives a random access response (RAR) message from the base station during the RAR window. The RAR message includes an uplink grant indicating an uplink shared channel resource. Further, the method sends an uplink message to arrive during the uplink shared channel resource while accounting for the calculated propagation delay.