公开(公告)号：US20220295356A1

公开(公告)日：2022-09-15

申请号：US17597819

申请日：2019-08-15

Applicant: QUALCOMM Incorporated

Inventor： Peng CHENG ,  Karthika PALADUGU ,  Gavin Bernard HORN ,  Punyaslok PURKAYASTHA ,  Ozcan OZTURK ,  Masato KITAZOE ,  Huichun LIU

IPC: H04W36/00

Abstract: This disclosure provides systems, methods, and apparatuses for low latency handover between secondary nodes (SNs). In one aspect, a user equipment (UE) may receive a configuration for a plurality of SNs, receive a command to communicate via an SN of the plurality of the SNs, and determine a handover procedure that is to be used to establish a connection with the SN. The handover procedure may be a random access channel (RACH)-less or a two-step RACH procedure and is determined to be used based on a determination that uplink time synchronization is established with the SN.

公开(公告)号：US20220225457A1

公开(公告)日：2022-07-14

申请号：US17332366

申请日：2021-05-27

Applicant: QUALCOMM Incorporated

Inventor： Punyaslok PURKAYASTHA ,  Ozcan OZTURK ,  Aziz GHOLMIEH

IPC: H04W76/18 ,  H04W76/27

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may perform radio link monitoring (RLM) reference signal measurements on a primary secondary cell (PSCell) while the UE is operating in a secondary cell group (SCG) deactivated state. The UE may perform beam failure detection (BFD) reference signal measurements while the UE is operating in the SCG deactivated state. The UE may transmit, to a master node associated with a master cell group (MCG), an SCG failure information message based at least in part on one of: a PSCell radio link failure (RLF) detection based at least in part on the RLM reference signal measurements, or a BFD based at least in part on the BFD reference signal measurements. Numerous other aspects are described.

公开(公告)号：US20210385897A1

公开(公告)日：2021-12-09

申请号：US17287706

申请日：2019-12-03

Applicant: Punyaslok PURKAYASTHA ,  Gavin Bernard HORN ,  Ozcan OZTURK ,  Peng CHENG ,  Arvind Vardarajan SANTHANAM ,  Qualcomm Incorporated

Inventor： Punyaslok PURKAYASTHA ,  Gavin Bernard HORN ,  Ozcan OZTURK ,  Peng CHENG ,  Arvind Vardarajan SANTHANAM

IPC: H04W76/19 ,  H04W24/08 ,  H04W76/18 ,  H04W36/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may detect a radio link failure between the UE and a master node of a dual-connectivity configuration. The UE may transmit, to a secondary node in the dual-connectivity configuration, an indication that the radio link failure has occurred. The secondary node may receive the indication of a radio link failure and transmit the indication of the radio link failure to the master node of the dual-connectivity configuration. The master node may identify a target node for the UE and perform a handover procedure of the UE from the master node to the target node.

公开(公告)号：US20210337449A1

公开(公告)日：2021-10-28

申请号：US17240524

申请日：2021-04-26

Applicant: QUALCOMM Incorporated

Inventor： Xipeng ZHU ,  Punyaslok PURKAYASTHA ,  Ozcan OZTURK ,  Luis Fernando Brisson LOPES

IPC: H04W36/08 ,  H04W74/08

Abstract: Example implementations include a method, apparatus and computer-readable medium of wireless communication at a secondary node (SN), comprising determining to perform conditional primary SCG cell (PSCell) change (CPC) of a user equipment (UE) to one of a set of target primary SCG cells within the SN different from a current primary SCG cell. The implementations further include generating a secondary cell modification message including identification information for the set of target primary SCG cells for the CPC. Additionally, the implementations further include transmitting the secondary cell modification message including the identification information for the set of target primary SCG cells for the CPC to a master node (MN) associated with the UE. Additionally, the implementations further include receiving a response message from the MN indicating a confirmation or a rejection of the secondary cell modification message. Example method, apparatus and computer-readable medium of wireless communication at the MN are included.

公开(公告)号：US20210258823A1

公开(公告)日：2021-08-19

申请号：US17174274

申请日：2021-02-11

Applicant: QUALCOMM Incorporated

Inventor： Xipeng ZHU ,  Linhai HE ,  Luis Fernando Brisson LOPES ,  Gavin Bernard HORN ,  Ozcan OZTURK ,  Karthika PALADUGU ,  Punyaslok PURKAYASTHA

IPC: H04W28/02 ,  H04W36/00

Abstract: The present disclosure provides systems, methods, and apparatuses for maintaining continuity of a buffer status report (BSR) from a user equipment (UE) when the UE is handed over between base stations. In one aspect, a base station or a component thereof may be configured to allocate a set of resources for transmission by a UE. The set of resources may have a capacity that is insufficient for an amount of data indicated by a BSR from the UE. The base station or component thereof may be further configured to transmit, to another base station in association with handover of the UE, an indication that the capacity of the set of resources is insufficient for the amount of the data indicated by the BSR.

公开(公告)号：US20210250825A1

公开(公告)日：2021-08-12

申请号：US17165611

申请日：2021-02-02

Applicant: QUALCOMM Incorporated

Inventor： Punyaslok PURKAYASTHA ,  Ozcan OZTURK ,  Xipeng ZHU ,  Luis Fernando Brisson LOPES ,  Tom CHIN ,  Daniel AMERGA ,  Shailesh MAHESHWARI ,  Kurt OTTE ,  Vanitha Aravamudhan KUMAR

IPC: H04W36/00 ,  H04W76/27 ,  H04W80/02 ,  H04W36/06

Abstract: A delta configuration is signaled for handover of a wireless communication device (e.g., a user equipment, UE) from a first form of connectivity to a second form of connectivity. For example, a UE with master cell group (MCG) connectivity may be handed-over to multiple radio access technology-dual connectivity (MR-DC). In some examples, a UE with standalone (SA) connectivity may be handed-over to non-standalone (NSA) connectivity (e.g., dual connectivity). In conjunction with this handover the UE may be signaled as to whether the UE is to reuse a configuration from the first connectivity mode during the second connectivity mode.

公开(公告)号：US20210136825A1

公开(公告)日：2021-05-06

申请号：US17021667

申请日：2020-09-15

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh LY ,  Punyaslok PURKAYASTHA ,  Ozcan OZTURK

IPC: H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first base station may determine collision avoidance information for avoiding collisions of physical random access channel communications from one or more user equipment. The collision avoidance information may include subcarrier spacing information and/or beam correspondence information. The first base station may transmit the collision avoidance information to a second base station. Numerous other aspects are provided.

公开(公告)号：US20240237127A1

公开(公告)日：2024-07-11

申请号：US18152724

申请日：2023-01-10

Applicant: QUALCOMM Incorporated

Inventor： Punyaslok PURKAYASTHA ,  Ozcan OZTURK

IPC: H04W76/27 ,  H04W24/10 ,  H04W76/38

CPC classification number: H04W76/27 ,  H04W24/10 ,  H04W76/38

Abstract: Method and apparatus to configure a UE to store multiple SCG configurations while in a RRC inactive state. The apparatus requests, from each of one or more target nodes, a validity time for each of one or more candidate target SCG configurations for a UE. The apparatus transitions the UE to a RRC inactive state. The apparatus indicates the validity time for each of the one or more candidate target SCG configurations for each of the one or more target nodes.

公开(公告)号：US20240163739A1

公开(公告)日：2024-05-16

申请号：US18055176

申请日：2022-11-14

Applicant: QUALCOMM Incorporated

Inventor： Punyaslok PURKAYASTHA ,  Ozcan OZTURK

IPC: H04W36/00

CPC classification number: H04W36/0058 ,  H04W36/0061 ,  H04W36/0069

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information indicating: one of a conditional primary secondary cell (PSCell) addition (CPA) configuration associated with a CPA procedure or a conditional PSCell change (CPC) configuration associated with a first CPC procedure, and a subsequent CPC configuration associated with a second CPC procedure. The UE may perform one of the CPA procedure or the first CPC procedure based at least in part on the one of the CPA configuration or the CPC configuration. The UE may perform the second CPC procedure based at least in part on the subsequent CPC configuration. Numerous other aspects are described.

公开(公告)号：US20230337073A1

公开(公告)日：2023-10-19

申请号：US18043004

申请日：2021-10-21

Applicant: QUALCOMM Incorporated

Inventor： Jaspreet KAUR ,  Rajat AGGARWAL ,  Xipeng ZHU ,  Priya RAJAN ,  Punyaslok PURKAYASTHA

IPC: H04W36/00 ,  H04W36/30

CPC classification number: H04W36/0064 ,  H04W36/0033 ,  H04W36/0058 ,  H04W36/305

Abstract: Techniques for wireless communications are described. A communication device, for example, a user equipment (UE) may transmit a request message to a target master base station based on a change in a state of the UE, and receive a response message from the target master base station based on the transmitted request message from the UE. The response message may include secondary node (SN) information and UE context reference shared to the target master base station from a source master base station (also referred to as a primary base station). The SN information corresponding to the same secondary base station associated with the UE while previously connected to the source master base station. The UE context reference may be stored at the same secondary base station.