IP Library › Granted Patent US 12677214
Granted Patent B2
US 12677214 · App. 18/441,565 · Granted Jul 7, 2026

Generating cell configuration information

Inventors: Behnam Khodapanah (Munich, DE); Halit Murat Gürsu (Munich, DE); Ahmad Awada (Munich, DE); Panagiotis Spapis (Munich, DE); Srinivasan Selvaganapathy (Bangalore, IN); Umur Karabulut (Munich, DE); Jedrzej Stanczak (Wroclaw, PL)
Assignee: NOKIA TECHNOLOGIES OY
H04W48/20H04W28/0252
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Quick Facts
Patent No.
US 12677214
App. No.
18/441,565
Granted
Jul 7, 2026
Kind
B2
Abstract

A user equipment of a telecommunications network comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the user equipment at least to: establish a connection between the user equipment and a first network node of the radio access network, the first network node supporting a first cell, derive in the user equipment a reference configuration relating to the first cell; wherein the reference configuration includes information related to a first bearer configuration; receive in the user equipment a target configuration related to a cell change from the first cell towards a second cell, wherein the target configuration includes information related to a target bearer configuration; and in response to an update of the first bearer configuration to an updated first bearer configuration, derive in the user equipment a related updated reference configuration and receiving in the user equipment a delta-over-target configuration, the delta-over-target configuration including information related to differences between an updated target bearer configuration and the target bearer configuration.

Claims (51)

1 . A user equipment of a telecommunications network comprising:

at least one processor; and

at least one memory storing instructions that, when executed by the at least one processor, cause the user equipment at least to:

establish a connection between the user equipment and a first network node of the radio access network, the first network node supporting a first cell;

derive in the user equipment a reference configuration relating to the first cell, wherein the reference configuration includes information related to a first bearer configuration;

receive in the user equipment a target configuration related to a cell change from the first cell towards a second cell, wherein the target configuration includes information related to a target bearer configuration; and

in response to an update of the first bearer configuration to an updated first bearer configuration, derive in the user equipment a related updated reference configuration and receive in the user equipment a delta-over-target configuration, the delta-over-target configuration including information related to differences between an updated target bearer configuration and the target bearer configuration.

2 . The user equipment of claim 1 , wherein the instructions cause the user equipment at least to:

receive an indication in the user equipment identifying the delta-over-target configuration.

3 . The user equipment of claim 2 , wherein the indication comprises a flag.

4 . The user equipment of claim 1 , wherein the instructions cause the user equipment at least to:

store in the user equipment the updated reference configuration, the target configuration and the delta-over-target configuration.

5 . The user equipment of claim 1 , wherein the reference configuration relates to a full configuration of the first cell at a first time when establishing connection with the first cell or a predetermined configuration known to the first network node and a second network node supporting the second cell.

6 . The user equipment of claim 1 , wherein the updated reference configuration relates to an updated full configuration of the first cell at a second time, subsequent to the first time, in response to the update of the first bearer configuration.

7 . The user equipment of claim 1 , wherein the instructions cause the user equipment at least to:

in response to a further update of the first bearer configuration of the first cell to a further updated first bearer configuration, derive in the user equipment a related updated reference configuration and receive in the user equipment an updated delta-over-target configuration, the updated delta-over-target configuration including information related to differences between the further updated target bearer configuration and the target bearer configuration.

8 . The user equipment of claim 7 , wherein the instructions cause the user equipment at least to:

store the updated delta-over-target configuration as the delta-over-target configuration.

9 . The user equipment of claim 1 , wherein the target configuration comprises a full configuration of the second cell.

10 . The user equipment of claim 1 , wherein the instructions cause the user equipment at least to:

determine a full configuration for performing the cell change towards the second cell by applying the delta-over-target configuration to the target configuration.

11 . The user equipment of claim 1 , wherein the target configuration comprises a delta-over-reference configuration, the delta-over-reference configuration including information related to differences between the target bearer configuration and the first bearer configuration.

12 . The user equipment of claim 11 , wherein the instructions cause the user equipment at least to:

determine a full configuration for performing the cell change towards the second cell by applying the delta-over-target configuration to the delta-over-reference configuration and to the reference configuration.

13 . The user equipment of claim 1 , wherein the instructions cause the user equipment at least to:

perform the cell change using the full configuration.

14 . The user equipment of claim 1 , wherein the instructions cause the user equipment at least to:

receive in the user equipment one or more further target configurations related to a cell change from the first cell towards one or more further cells, wherein the target configuration includes information related to a target bearer configuration of those further cells; and

in response to an update of the first bearer configuration to the updated first bearer configuration, receive in the user equipment a delta-over-target configuration for the one or more cells, the delta-over-target configuration including information related to between the updated further target bearer configuration and the target bearer configuration.

15 . The user equipment of claim 1 , wherein the instructions cause the user equipment at least to:

receive the reference configuration, the target configuration, the delta-over-target configuration and/or the updated delta-over-target second delta configuration using RRC signalling.

16 . The user equipment of claim 1 , wherein the first bearer configuration, the target bearer configuration, the updated target bearer configuration and/or the further updated bearer first bearer configuration comprises information related to at least one of the following parameters: Data Radio Bearer parameters, Quality of Service parameters, Quality of Service flow parameters, Protocol Data Unit session parameter and/or other dynamically changing parameters, and the like.

17 . The user equipment of claim 1 , wherein the first network node comprises at least one of or supports functionality of at least one of: a base station, a 5G gNB, a Centralised Unit, a Distributed Unit, a secondary node, a source node or a source secondary node.

18 . The user equipment of claim 1 , wherein the user equipment supports dual connectivity to a master node and a secondary node.

19 . The user equipment of any preceding claim 1 , wherein the first cell is at least one of a source cell, a primary cell of a first cell group or primary cell of a secondary cell group supported by a source secondary node.

20 . The user equipment of claim 1 , wherein the second network node comprises at least one of or supports functionality of at least one of: a base station, a 5G gNB, a Centralised Unit, a Distributed Unit, a secondary node, a source node or a source secondary node.

21 . The user equipment of claim 1 , wherein the second cell is at least one of a target cell, a primary cell of a first cell group or primary cell of a secondary cell group supported by a first target secondary node.

22 . The user equipment of claim 1 , wherein the cell change from the first cell towards the second cell occurs as a result of Conditional Handover, Conditional PSCell Change and/or Lower Layer triggered Mobility.

23 . A method for supporting cell change for a user equipment supporting connectivity towards a radio access network, the method comprising:

establishing a connection between the user equipment and a first network node of the radio access network, the first network node supporting a first cell,

deriving in the user equipment a reference configuration relating to the first cell; wherein the reference configuration includes information related to a first bearer configuration;

receiving in the user equipment a target configuration related to a cell change from the first cell towards a second cell, wherein the target configuration includes information related to a target bearer configuration; and

in response to an update of the first bearer configuration to an updated first bearer configuration, deriving in the user equipment a related updated reference configuration and receiving in the user equipment a delta-over-target configuration, the delta-over-target configuration including information related to differences between an updated target bearer configuration and the target bearer configuration.

24 . A network node of a telecommunications network comprising:

at least one processor; and

at least one memory storing instructions that, when executed by the at least one processor, cause the user equipment at least to:

transmit, from a first network node supporting a first cell to the user equipment, a target configuration related to a cell change from the first cell towards a second cell, wherein the target configuration includes information related to a target bearer configuration; and

in response to an update of a first bearer configuration of the first cell to an updated first bearer configuration transmit, from the first network node to the user equipment, a delta-over-target configuration, the delta-over-target configuration including information related to between an updated bearer configuration and the target bearer configuration.

25 . A method for supporting cell change for a user equipment supporting connectivity towards a radio access network, the method comprising:

transmitting, from a first network node supporting a first cell to the user equipment, a target configuration related to a cell change from the first cell towards a second cell, wherein the target configuration includes information related to a target bearer configuration; and

in response to an update of a first bearer configuration of the first cell to an updated first bearer configuration transmitting, from the first network node to the user equipment, a delta-over-target configuration, the delta-over-target configuration including information related to between an updated bearer configuration and the target bearer configuration.