公开(公告)号：US20240406806A1

公开(公告)日：2024-12-05

申请号：US18701588

申请日：2022-08-30

Applicant: Nokia Technologies Oy

Inventor： Subramanya CHANDRASHEKAR ,  Andres ARJONA ,  Tero HENTTONEN

IPC: H04W36/00 ,  H04W28/06 ,  H04W36/08

Abstract: A user equipment configured to: store a L2 and/or L3 multicast capability, wherein a L2 multicast operation enables the user equipment to receive a first L2 message from a first network node, and a second L2 message from a second network node, wherein a payload of second message is a duplicate of a payload of the first message, and wherein a L3 multicast operation enables the user equipment to receive a third L3 message from a third network node, and a fourth L3 message from a fourth network node, wherein a payload of fourth message is a duplicate of a payload of third message, transmit the L2 and/or L3 multicast towards the first or third node, receive a message from the first or third node, wherein the message includes an indication to activate the L2 and/or L3 multicast, and activate the L2 and/or L3 multicast based on the message.

公开(公告)号：US20240236793A1

公开(公告)日：2024-07-11

申请号：US18559055

申请日：2022-05-04

Applicant: Nokia Technologies Oy

Inventor： Subramanya CHANDRASHEKAR ,  Guillaume DECARREAU ,  Tero HENTTONEN ,  Andres ARJONA

IPC: H04W36/06 ,  H04W36/00 ,  H04W36/32 ,  H04W88/08

CPC classification number: H04W36/06 ,  H04W36/0058 ,  H04W36/0061 ,  H04W36/324 ,  H04W88/085

Abstract: Improved techniques of intra and inter distributed unit mobility include determining, by a user equipment served by a source cell, whether a target cell belongs to the same distributed unit as the source cell based on information sent by the central unit (control plane) after a connection with the network node has been established. The information sent by the network node includes, for each cell, a group identifier identifying the distributed unit with which that cell is associated. When measurement data provided by the user equipment indicates readiness for a serving cell change to a target cell, the user equipment uses the group identifier to determine whether the target cell belongs to the same distributed unit as the source cell (intra-distributed unit mobility scenario) or a different distributed unit as the source cell (inter-distributed unit mobility scenario).

公开(公告)号：US20240172300A1

公开(公告)日：2024-05-23

申请号：US18551113

申请日：2022-03-08

Applicant: Nokia Technologies Oy

Inventor： Subramanya CHANDRASHEKAR ,  Srinivasan SELVAGANAPATHY ,  Philippe GODIN ,  Daniela LASELVA

IPC: H04W76/12 ,  H04W76/27

CPC classification number: H04W76/12 ,  H04W76/27

Abstract: The present subject matter relates to a user equipment for transmission of a data, the user equipment being served by a cell of a base station, the user equipment being in an inactive state, the user equipment comprising means being configured for: in response to determining that a condition is fulfilled, forming a data packet comprising the data and a first identity of the user equipment; otherwise, forming a data packet comprising the data and a second identity of the user equipment; wherein the condition comprises at least that the cell was a last serving cell of the user equipment before the user equipment transitioned to the inactive state; wherein the first identity is different from the second identity; transmitting the data packet to the base station.

公开(公告)号：US20240023176A1

公开(公告)日：2024-01-18

申请号：US18332342

申请日：2023-06-09

Applicant: Nokia Technologies Oy

Inventor： Sankaran BALASUBRAMANIAM ,  Subramanya CHANDRASHEKAR ,  Raghuram Reddy KRISHNAMURTHY ,  Suresh P NAIR

IPC: H04W76/12 ,  H04W76/11 ,  H04W72/1273 ,  H04W12/041

CPC classification number: H04W76/12 ,  H04W76/11 ,  H04W72/1273 ,  H04W12/041

Abstract: Systems, methods, apparatuses, and computer program products for a method of mobility between distributed units with a local control plane are provided. For example, a method can include detecting, at a target distributed unit, a handover based on an indication from a source distributed unit after a handover command has been sent to a user equipment to hand over from the source distributed unit to the target distributed unit. The method can also include sending, from the target distributed unit to a central unit user plane, a data transmission resume notification, to trigger to the central unit user plane to resume downlink data transmission toward the target distributed unit. The downlink data transmission was previously suspended by instructions from a source distributed unit to the central unit user plane when the handover was initiated from the source distributed unit to the target distributed unit.

公开(公告)号：US20230413371A1

公开(公告)日：2023-12-21

申请号：US18033378

申请日：2021-07-07

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Philippe GODIN ,  Alberto MARTÍNEZ-ALBA ,  Daniela LASELVA ,  Subramanya CHANDRASHEKAR ,  Srinivasan SELVAGANAPATHY ,  Rakash SIVASIVA GANESAN

IPC: H04W76/27 ,  H04W48/16 ,  H04W12/106 ,  H04W12/04

CPC classification number: H04W76/27 ,  H04W12/04 ,  H04W12/106 ,  H04W48/16

Abstract: For performing a small data transmission triggered in an inactive state of a user equipment (S701, S703), a first transmission method or a second transmission method is selected at least based on a cell of a cellular communication system in which the small data transmission is to be performed by the user equipment (S705). Then the small data transmission is performed using the selected first or second transmission method (S707).

公开(公告)号：US20230269642A1

公开(公告)日：2023-08-24

申请号：US18166908

申请日：2023-02-09

Applicant: Nokia Technologies Oy

Inventor： Rajesh Babu NATARAJAN ,  Subramanya CHANDRASHEKAR ,  Srinivasan SELVAGANAPATHY ,  Saurabh KHARE

IPC: H04W36/08 ,  H04W36/00

CPC classification number: H04W36/08 ,  H04W36/0033 ,  H04W84/042

Abstract: There is provided an apparatus comprising determining, by a first access and mobility management function in a first network, that handover of a user equipment from the first access and mobility management function to a second access and mobility management function in a second network is required; sending, to the second access and mobility management function, a context update request for the user equipment, wherein the context update request comprises an indication that the source and target access node are the same; and receiving, from the second access and mobility management function, a context update response based on the context update request, the context update response comprising the indication that the source and target access node are the same.

公开(公告)号：US20220124555A1

公开(公告)日：2022-04-21

申请号：US17485975

申请日：2021-09-27

Applicant: Nokia Technologies Oy

Inventor： Philippe GODIN ,  Subramanya CHANDRASHEKAR ,  Daniela LASELVA

IPC: H04W28/06 ,  H04L12/46

Abstract: Systems, methods, apparatuses, and computer program products for inter-gNB small data transmission (SDT) routing at a radio access network (RAN). A method may include transmitting an initial request message from a first element in a first network node, to a second element in the first network node to obtain context information. The method may also include receiving, at the first element, a context setup request message based on the context information containing a transport layer information of a third element of a second network node and context information of a user equipment in the second network node. The method may further include processing a data packet according to the received context information. In addition, the method may include forwarding the data packet to the third element of the second network node according to the received transport layer information.

公开(公告)号：US20250142432A1

公开(公告)日：2025-05-01

申请号：US18835581

申请日：2023-01-13

Applicant: Nokia Technologies Oy

Inventor： Amaanat ALI ,  Subramanya CHANDRASHEKAR ,  Srinivasan SELVAGANAPATHY ,  Tero HENTTONEN ,  Ahmad AWADA

IPC: H04W36/08 ,  H04W36/00

Abstract: Techniques for performing efficient L1/L2 mobility are provided. For example, a method in a user equipment (UE) connected to a serving cell, is provided. The method comprises receiving, from a first network node, a first reconfiguration message including a first base configuration common to a plurality of first cells served by the first network node and a plurality of first cell-specific configurations each related to one of the plurality of first cells to enable execution of a mobility procedure; and applying, upon execution of the mobility procedure, at least a cell-specific configuration for a first target cell from among the plurality of first cell-specific configurations to connect the UE to the first target cell.

公开(公告)号：US20250113259A1

公开(公告)日：2025-04-03

申请号：US18725375

申请日：2022-12-19

Applicant: Nokia Technologies Oy

Inventor： Ahmad AWADA ,  Srinivasan SELVAGANAPATHY ,  Subramanya CHANDRASHEKAR ,  Amaanat ALI ,  Panagiotis SPAPIS ,  Halit Murat GÜRSU

IPC: H04W36/00 ,  H04B7/06 ,  H04L5/00 ,  H04W24/10

Abstract: A technique, comprising: generating an information set for a user equipment; wherein the information set at least includes information for configuring the user equipment for performing measurements for a mobility decision at a first distributed unit operating a first, serving cell of a radio access network; wherein the measurements comprise at least: measurements for the first, serving cell, and measurements for a second cell operated by a second distributed unit of the radio access network.

公开(公告)号：US20240414588A1

公开(公告)日：2024-12-12

申请号：US18579773

申请日：2022-08-12

Applicant: Nokia Technologies Oy

Inventor： Karri Markus RANTA-AHO ,  Subramanya CHANDRASHEKAR

IPC: H04W28/02 ,  H04B7/06 ,  H04W36/00

Abstract: A method for a network element, NE, is proposed, which comprises receiving from a user equipment, UE, at least one of a BSR or an uplink MAC-CE; determining to perform an L1 based handover for the UE; and sending an L1 based handover command to the UE. Another method for a UE is proposed, which comprises receiving an L1/L2 mobility configuration; deciding that there is an L1 CSI report to send; determining whether the UE has an UL grant; if it is determined that the UE has an UL grant, the method further comprises: sending at least one of a BSR or an UL MAC-CE to a NE; if it is determined that the UE does not have an UL grant, the method further comprises: sending a dedicated SR to a NE indicating that an L1 CSI report is pending; receiving a scheduling grant from the NE; and sending the L1 CSI report to the NE based on the scheduling grant; and receiving an L1 based handover command from the NE.