# US 11,310,697 B2 · Core node, base station, radio terminal, communication method, radio resource allocation method, base station selection method, and readable medium

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- Number: US 11,310,697 B2
- Document ID: US11310697B2
- Status: Granted
- Kind: B2
- Application number: 17/470,974
- Filed: 2021-09-09
- Published: 2021-12-30
- Granted: 2022-04-19
- Earliest claimed: 2016-03-23
- Assignees: NEC Corporation
- Applicants: NEC Corporation
- Inventors: Mayo Oohira; Masaaki Kosugi; Toshiyuki Tamura; Yusuke Takano
- Web page: https://patentgrep.com/patent/US11310697B2

## CPC

- H04W 28/16: Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W 8/06: Registration at serving network Location Register, VLR or user mobility server
- H04W 16/02: Resource partitioning among network components, e.g. reuse partitioning
- H04W 48/18: Selecting a network or a communication service
- H04W 60/002: {Registration for requesting network slices}
- H04W 60/04: using triggered events
- H04W 72/04: Wireless resource allocation
- H04W 92/14: between access point controllers and backbone network device
- H04W 72/543: based on requested quality, e.g. QoS
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

The present disclosure aims to provide a core node capable of appropriately allocating a radio resource of a RAN Slice allocated for a specific service to a radio terminal that uses this specific service. A core node according to the present disclosure includes: a determination unit configured to determine a radio resource to be allocated in accordance with a service provided for a radio terminal; and a communication unit configured to transmit resource identification information indicating the radio resource determined in the determination unit to a base station that manages a plurality of radio resources for each RAN Slice associated with a service.

## Claims

### Claim 1

A User Equipment (UE) in a mobile communication system, the UE comprising:
at least one processor; and
at least one memory coupled to the at least one processor, the at least one memory storing instructions that when executed by the at least one processor cause the at least one processor to:
store a first slice ID in the UE, and
receive broadcast information from a Radio Access Network (RAN), wherein the RAN receives an Initial Context Setup Request message related to a second slice ID from a mobility management node and sends an Initial Context Setup Response message to the mobility management node upon successful allocation of resources.

### Claim 2 (depends on 1)

The UE of claim 1, wherein the first slice ID is pre-configured in the UE.

### Claim 3 (depends on 1)

The UE of claim 1, wherein the broadcast information is broadcasted using a Broadcast Control Channel (BCCH).

### Claim 4

A method of a User Equipment (UE) in a mobile communication system, the method comprising:
storing a first slice ID in the UE; and
receiving broadcast information from a Radio Access Network (RAN), wherein the RAN receives an Initial Context Setup Request message related to a second slice ID from a mobility management node and sends an Initial Context Setup Response message to the mobility management node upon successful allocation of resources.

### Claim 5 (depends on 4)

The method of claim 4, wherein the first slice ID is pre-configured in the UE.

### Claim 6 (depends on 4)

The method of claim 4, wherein the broadcast information is broadcasted using a Broadcast Control Channel (BCCH).