IP Library › Patent Application 18899354
Patent Application
App. No. 18/899,354

METHOD FOR CONFIGURING INFORMATION AND APPARATUS THEREFOR, AND COMMUNICATION SYSTEM

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Quick Facts
Patent No.
US None
App. No.
18/899,354
Abstract

An apparatus for configuring information, applicable to an IAB node, includes: a receiver configured to receive an RRC reconfiguration message, wherein the RRC reconfiguration message indicates information on a topology to which a default uplink BAP routing ID configured for the IAB node belongs.

Claims (25)

1 . An apparatus for configuring information, applicable to an IAB (Integrated access and backhaul) node, the apparatus comprising:

a receiver configured to receive an RRC (radio resource control) reconfiguration message, wherein the RRC reconfiguration message indicates information on a topology to which a default uplink BAP (Backhaul Adaptation Protocol) routing ID configured for the IAB node belongs.

2 . The apparatus according to claim 1 , wherein, the topology comprises an F1-terminating topology or a non-F1-terminating topology.

3 . The apparatus according to claim 1 , wherein, the topology to which the default uplink BAP routing ID belongs is indicated by a donor centralized unit (donor-CU) that configures a default uplink BAP routing ID (defaultUL-BAP-RoutingID) field or configures bap-Config containing a default uplink BAP routing ID field.

4 . The apparatus according to claim 3 , wherein, if the default uplink BAP routing ID field or the bap-Config containing the default uplink BAP routing ID field is configured by an F1-terminating donor, the default uplink BAP routing ID belongs to an F1-terminating topology.

5 . The apparatus according to claim 3 , wherein, if the default uplink BAP routing ID field or the bap-Config containing the default uplink BAP routing ID field is configured by a non-F1-terminating donor, the default uplink BAP routing ID belongs to a non-F1-terminating topology.

6 . The apparatus according to claim 1 , wherein, the IAB node is a boundary IAB node.

7 . An apparatus for configuring information, applicable to an IAB (Integrated access and backhaul) node, the apparatus comprising:

a receiver configured to receive an RRC (radio resource control) reconfiguration message, wherein the RRC reconfiguration message indicates that a configured default uplink BH RLC (Radio Link Control) channel (defaultUL-BH-RLC-Channel) field refers to an RLC channel on an MCG (master cell group) or an RLC channel on an SCG (secondary cell group).

8 . The apparatus according to claim 7 , wherein, a cell group to which the default uplink BH RLC channel refers is indicated by a donor centralized unit (donor-CU) that configures a default uplink BH RLC channel (defaultUL-BH-RLC-Channel) field.

9 . The apparatus according to claim 8 , wherein, if the default uplink BH RLC channel (defaultUL-BH-RLC-Channel) field is configured by an MN (master node), the default uplink BH RLC channel refers to the RLC channel on the MCG.

10 . The apparatus according to claim 8 , wherein, if the default uplink BH RLC channel (defaultUL-BH-RLC-Channel) field is configured by an SN, the default uplink BH RLC channel refers to the RLC channel on the SCG.

11 . The apparatus according to claim 7 , wherein, the IAB node does not operate at EN-DC.

12 . The apparatus according to claim 7 , wherein, when routing is performed at a BAP (Backhaul Adaptation Protocol) sublayer, if a backhaul routing configuration is not configured or reconfigured by an F1AP after the default uplink BH RLC channel is configured or reconfigured by an RRC at a latest time, an egress link is selected according to a cell group to which the default uplink BH RLC channel corresponds.

13 . The apparatus according to claim 7 , wherein, the IAB node is a boundary IAB node.

14 . An apparatus for configuring information, applicable to an IAB (Integrated access and backhaul) node, the apparatus comprising:

a receiver configured to receive an RRC (radio resource control) reconfiguration message, wherein the RRC reconfiguration message includes a first donor-DU BAP (Backhaul Adaptation Protocol) address for the IAB node, the first donor-DU BAP address referring to a donor distributed unit (DU 2 ) under a second topology.

15 . The apparatus according to claim 14 , wherein, IP address configuration of the RRC reconfiguration message includes the first donor-DU BAP address.

16 . The apparatus according to claim 14 , wherein, in a case of receiving an IAB IP address addition/modification list (iab-IP-AddressToAddModList) contained in the RRC reconfiguration message, the IAB-node saves an IP addresses in the IAB IP address addition/modification list and the first donor-DU BAP address to which the IP address corresponds.

17 . The apparatus according to claim 15 , further comprising:

processor circuitry configured to:

select an IP address according to the first donor-DU BAP address; and

perform uplink transmission via the second topology by using the selected IP address.

18 . The apparatus according to claim 14 , wherein, the IAB node is a descendant node of a boundary IAB node.

19 . The apparatus according to claim 18 , wherein, the second topology is a non-F1-terminating topology of the boundary IAB node.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 3, 2025
From: FUJITSU LIMITED
To: 1FINITY INC.
Reel/Frame 073477/0445 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 27, 2024
From: YI, SU; LU, YANG; JIA, MEIYI; LI, GUORONG
To: FUJITSU LIMITED
Reel/Frame 068725/0593 →