Radio base station and communication control method

Patent metadata

Field	Value
Publication number	US-2020228964-A1
Application number	US-201816639031-A
Country	US
Kind code	A1
Filing date	Aug 13, 2018
Priority date	Aug 16, 2017
Publication date	Jul 16, 2020
Grant date	—

Abstract

A central unit ( 210 ) acquires, from a user device ( 300 ) via a radio resource control layer, UE Capability indicative of a capability of the user device ( 300 ). The central unit ( 210 ) forwards the acquired UE Capability to a distributed unit ( 260 ). The distributed unit ( 260 ) holds parameters for controlling radio communication beforehand and receives the UE Capability forwarded by the central unit ( 210 ). The distributed unit 260 determines, based on the received UE Capability, content of the parameters according to the content of the UE Capability.

First claim

1 . A radio base station including a first device and a second device and that performs radio communication with a user device, wherein
the first device includes
a capability information acquiring unit that acquires, from the user device via a radio resource control layer, capability information indicative of a capability of the user device; and
a capability information forwarding unit that forwards to the second device the capability information acquired by the capability information acquiring unit, and
the second device includes
a capability information receiving unit that receives the capability information forwarded by the first device; and
a parameter determining unit that determines a content of parameters that controls the radio communication and according to the content of the capability information based on the capability information received by the capability information receiving unit.

2 . The radio base station as claimed in claim 1 , wherein the capability information forwarding unit forwards to the second device only the capability information relating to determination of the parameters in the parameter determining unit.

3 . The radio base station as claimed in claim 1 , wherein the parameter determining unit truncates, upon determining that the capability information forwarded by the first device overflows, at least a part of the capability information.

4 . The radio base station as claimed in claim 1 , wherein the capability information forwarding unit decodes the capability information that is encoded in the radio resource control layer and forwards the decoded capability information to the second device.

5 . The radio base station as claimed in claim 1 , wherein the capability information receiving unit receives the capability information that is encoded in the radio resource control layer and decodes the received capability information.

6 . The radio base station as claimed in claim 1 , wherein the capability information receiving unit receives from the user device the capability information that is encoded in the radio resource control layer and decodes the received capability information.

7 . A communication control method implemented in a radio base station including a first device and a second device and that performs radio communication with a user device, the communication control method comprising:
acquiring in which the first device acquires, from the user device via a radio resource control layer, capability information indicative of a capability of the user device; forwarding in which the first device forwards the acquired capability information to the second device; receiving in which the second device receives the capability information forwarded by the first device; and determining in which the second device determines a content of parameters that controls the radio communication and according to the content of the capability information based on the received capability information.

Assignees

• Ntt Docomo Inc

Inventors

• Toeda Teruaki
• Uchino Tooru
• Umesh Anil

Classifications

• H04W8/24

  Transfer of terminal data · CPC title

• H04W8/22 Primary

  Processing or transfer of terminal data, e.g. status or physical capabilities · CPC title

• H04W88/08

  Access point devices · CPC title

• H04W16/26

  Cell enhancers {or enhancement}, e.g. for tunnels, building shadow · CPC title