公开(公告)号：US20240008135A1

公开(公告)日：2024-01-04

申请号：US18454004

申请日：2023-08-22

Applicant: QUALCOMM Incorporated

Inventor： Sitaramanjaneyulu KANAMARLAPUDI ,  Prasad Reddy KADIRI

IPC: H04W76/27 ,  H04W36/00 ,  H04L12/18 ,  H04W72/30

CPC classification number: H04W76/27 ,  H04W36/0016 ,  H04L12/1881 ,  H04L12/185 ,  H04W72/30

Abstract: This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communication. In one aspect of the disclosure, a user equipment (UE) is configured to manage a state variable (associated with a radio link control (RLC) entity or a packet data convergence protocol (PDCP) entity) that enables the UE to maintain synchronization with a base station during a communication session. For example, a base station may transmit, to the UE, a control PDU or a synchronization PDU that includes a value of a state variable maintained by a base station to enable the UE to update its state variable to maintain synchronization with the base station. Other aspects and features are also claimed and described.

公开(公告)号：US20230337234A1

公开(公告)日：2023-10-19

申请号：US18340746

申请日：2023-06-23

Applicant: QUALCOMM Incorporated

Inventor： Le LIU ,  Alberto RICO ALVARINO ,  Peter GAAL ,  Kazuki TAKEDA ,  Jing SUN ,  Wanshi CHEN ,  Ayan SENGUPTA ,  Juan MONTOJO ,  Mostafa KHOSHNEVISAN ,  Prasad Reddy KADIRI

IPC: H04L1/08 ,  H04W72/1273

CPC classification number: H04W72/1273 ,  H04L1/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration for a group-common physical downlink shared channel (PDSCH), where the group-common PDSCH is repeated for a number of repetitions. Accordingly, the UE may determine this number of repetitions and then monitor for the group-common PDSCH based on the number of repetitions. In some implementations, the group-common PDSCH may include a semi-static repetition scheme, where the number of repetitions is indicated via a group aggregation factor. Additionally or alternatively, the group-common PDSCH may include a dynamic repetition scheme, where the number of repetitions is indicated via a group repetition number. Additionally, the techniques described herein may enable the configuration for the repeated group-common PDSCH to include gaps between each repetition of the group-common PDSCH and for the UE to transmit acknowledgment feedback for the repetitions of the group-common PDSCH.

公开(公告)号：US20230309122A1

公开(公告)日：2023-09-28

申请号：US18321946

申请日：2023-05-23

Applicant: QUALCOMM Incorporated

Inventor： Kazuki TAKEDA ,  Le LIU ,  Prasad Reddy KADIRI ,  Ayan SENGUPTA ,  Alberto RICO ALVARINO ,  Xiaoxia ZHANG ,  Tao LUO ,  Mostafa KHOSHNEVISAN ,  Jing SUN ,  Xipeng ZHU ,  Wooseok NAM ,  Wanshi CHEN ,  Amer CATOVIC

IPC: H04W72/30 ,  H04W72/0453 ,  H04L5/00 ,  H04L27/26 ,  H04W76/27 ,  H04W72/23 ,  H04W72/53

CPC classification number: H04W72/30 ,  H04L5/0092 ,  H04L5/0094 ,  H04L27/2607 ,  H04W72/0453 ,  H04W72/23 ,  H04W72/53 ,  H04W76/27

Abstract: Various aspects provide a method for radio resource allocation to support multicast services from a 5G-NR base station. In some aspects, the method may be performed by a processor of the base station. Various aspects include determining a multicast bandwidth part (BWP) within a carrier bandwidth, sending an indication of the multicast BWP to one or more user equipment (UE) computing devices in communication with the base station, and scheduling transmission of multicast data in the multicast BWP.

公开(公告)号：US20230308221A1

公开(公告)日：2023-09-28

申请号：US18006557

申请日：2020-08-03

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy KADIRI ,  Ruiming ZHENG ,  Alberto RICO ALVARINO ,  Umesh PHUYAL ,  Xipeng ZHU ,  Le LIU ,  Kazuki TAKEDA ,  Changlong XU

IPC: H04L1/1812 ,  H04W76/40

CPC classification number: H04L1/1816 ,  H04W76/40

Abstract: Embodiments include systems and methods for supporting for supporting retransmission in a multicast session in a Fifth Generation (5G) New Radio (NR) (5G NR) radio access network (RAN). Various embodiments may provide an enhanced multicast radio bearer (MRB) architecture leveraging Packet Data Convergence Protocol (PDCP) status reporting by wireless devices to a base station of a 5G NR RAN. Various embodiments may support multiple Radio Link Control (RLC) entities, also referred to as RLC legs, in a multicast session. One or more multicast RLC legs may be used for multicast and/or unicast transmission to wireless devices and a unicast RLC leg may be used for unicast transmission to a specific wireless device. Various embodiments may enable PDCP level retransmission of PDCP protocol data units (PDUs).

公开(公告)号：US20230164809A1

公开(公告)日：2023-05-25

申请号：US18156831

申请日：2023-01-19

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Xipeng ZHU ,  Le LIU ,  Alberto RICO ALVARINO ,  Kazuki TAKEDA ,  Prasad Reddy KADIRI ,  Umesh PHUYAL ,  Wanshi CHEN

IPC: H04W72/30 ,  H04L1/1812 ,  H04W72/23

CPC classification number: H04W72/30 ,  H04L1/1812 ,  H04W72/23

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a notification of a change to multicast broadcast (MB) control information associated with at least one MB service to which the UE is subscribed, the MB control information being included in an MB control channel (MBCCH) scheduled by a physical downlink control channel (PDCCH) communication addressed to an MB radio network temporary identifier (MB-RNTI); and monitor one or more resources of the MBCCH to receive updated MB control information based at least in part on receiving the notification of the change to the MB control information. Numerous other aspects are provided.

公开(公告)号：US20230164656A1

公开(公告)日：2023-05-25

申请号：US18158442

申请日：2023-01-23

Applicant: QUALCOMM Incorporated

Inventor： Karthika PALADUGU ,  Ozcan OZTURK ,  Prasad Reddy KADIRI ,  Xipeng ZHU

IPC: H04W36/18 ,  H04W36/00

CPC classification number: H04W36/18 ,  H04W36/0016 ,  H04W36/0055

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to performing a handover on a per-data radio bearer (DRB) basis. In some examples, the disclosure is directed to indicating, to a source network entity, a make-before-break (MBB) handover capability of the UE, the MBB handover capability supporting MBB handovers for one or more DRBs identified by the source network entity. In some examples, the disclosure describes receiving, from the source network entity, configuration information for a handover from the source network entity to a target network entity, the configuration information identifying the one or more DRBs supported for the MBB handover.

公开(公告)号：US20220124675A1

公开(公告)日：2022-04-21

申请号：US17451210

申请日：2021-10-18

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/00 ,  H04W72/04 ,  H04W72/10

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：US20220038866A1

公开(公告)日：2022-02-03

申请号：US17393302

申请日：2021-08-03

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy KADIRI ,  Alberto RICO ALVARINO ,  Umesh PHUYAL ,  Le LIU ,  Xipeng ZHU ,  Kazuki TAKEDA

IPC: H04W4/06 ,  H04L1/18 ,  H04W76/40 ,  H04W76/11 ,  H04W72/08

Abstract: A method for wireless communication at a user equipment (UE) includes receiving, from a base station, multicast data via a multicast channel. The method also includes transmitting, to the base station, multicast feedback based on receiving the multicast data. In some examples, the multicast feedback is associated with a group of UEs including the UE. The method further includes receiving, from the base station, a re-transmission of the multicast data on the multicast channel or a unicast channel based on one or more of a number of UEs served by the base station, a number of UEs from the group of UEs providing the multicast feedback, or a radio channel condition.

公开(公告)号：US20210314810A1

公开(公告)日：2021-10-07

申请号：US17301549

申请日：2021-04-06

Applicant: QUALCOMM Incorporated

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

IPC: H04W28/04 ,  H04L1/00 ,  H04W72/14 ,  H04W28/02 ,  H04L1/18 ,  H04L1/16

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：US20210250918A1

公开(公告)日：2021-08-12

申请号：US17157778

申请日：2021-01-25

Applicant: QUALCOMM Incorporated

Inventor： Le LIU ,  Alberto RICO ALVARINO ,  Peter GAAL ,  Xiaoxia ZHANG ,  Tao LUO ,  Prasad Reddy KADIRI ,  Ayan SENGUPTA ,  Kazuki TAKEDA ,  Umesh PHUYAL

IPC: H04W72/04 ,  H04W4/06 ,  H04L1/18

Abstract: Aspects described herein relate to indicating downlink control information (DCI) for multicast and/or broadcast (MB) communications using DCI formats that may be based on existing DCI formats and/or size for unicast communications, paging signals, system information signals, etc., or may include shortened formats without fields for information that may not be used in MB communications.