MOBILE STATION AND RADIO BASE STATION

• US 20160227399A1
• Filed: 09/18/2014
• Published: 08/04/2016
• Est. Priority Date: 09/20/2013
• Status: Active Grant

• Current Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Original Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Inventors: Takahashi, Hideaki, Umeda, Hiromasa
• Granted Patent: US 10,285,047 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 8/24 Transfer of terminal data

Abstract

Even if “UE category” is notified of only in an uplink (or a downlink), a radio base station eNB can suitably perform a communication control on a mobile station UE in the downlink (or the uplink) for which “UE category” is not notified of. In the mobile station UE according to the present invention, when the mobile station UE does not support “UE category for Release-12” in the uplink, a transmitting unit 12 does not notify of “UE category for Release-12” corresponding to the uplink, and when the mobile station UE does not support “UE category for Release-12” in the downlink, the transmitting unit 12 does not notify of “UE category for Release-12” corresponding to the downlink.

Claims

1. A mobile station comprising a transmitting unit that notifies a radio access network of UE category that defines a peak throughput in the mobile station, wherein

the transmitting unit notifies of UE category for the third generation prescribed in the third generation of the LTE system for each of an uplink and a downlink in addition to notifying of UE category for the first generation prescribed in the first generation of the LTE system and UE category for the second generation prescribed in the second generation of the LTE system,

when the mobile station does not support the UE category for the third generation in the uplink, the transmitting unit does not notify of the UE category for the third generation corresponding to the uplink, and

when the mobile station does not support the UE category for the third generation in the downlink, the transmitting unit does not notify of the UE category for the third generation corresponding to the downlink.

2. The mobile station as claimed in claim 1, wherein the transmitting unit does not notify of the UE category for the second generation when the mobile station does not support the UE category for the second generation.

3. A radio base station comprising:

a receiving unit that receives from a mobile station UE category that defines a peak throughput in the mobile station; and

a controlling unit that performs a communication control on the mobile station based on the received UE category, wherein

when the UE category received by the receiving unit does not include UE category for the third generation prescribed in the third generation of the LTE system corresponding to an uplink, the controlling unit performs the communication control on the mobile station in the uplink based on UE category for the first generation prescribed in the first generation of the LTE system or UE category for the second generation prescribed in the second generation of the LTE system, and

when the UE category received by the receiving unit does not include the UE category for the third generation corresponding to a downlink, the controlling unit performs the communication control on the mobile station in the downlink based on the UE category for the first generation or the UE category for the second generation.

4. The radio base station as claimed in claim 3, wherein

when the UE category received by the receiving unit does not include the UE category for the second generation and the UE category for the third generation corresponding to the uplink, the controlling unit performs the communication control on the mobile station in the uplink based on the UE category for the first generation, and

when the UE category received by the receiving unit does not include the UE category for the second generation and the UE category for the third generation corresponding to the downlink, the controlling unit performs the communication control on the mobile station in the downlink based on the UE category for the first generation.