Method for signaling ue capability change and apparatus therefor

Patent metadata

Field	Value
Publication number	US-2016157228-A1
Application number	US-201514954719-A
Country	US
Kind code	A1
Filing date	Nov 30, 2015
Priority date	Nov 28, 2014
Publication date	Jun 2, 2016
Grant date	—

Abstract

A method for notifying of change of capability of a terminal (hereinafter, “terminal capability”) without radio resource control (RRC) connection reconfiguration in a wireless communication system includes: transmitting a second message for notifying that terminal capability is variable to an base station upon reception of a first message for inquiring about terminal capability; transmitting a third message for notifying of terminal capability change to the base station when the terminal capability has changed, wherein the third message triggers transmission of a fourth message for inquiring about the changed terminal capability; receiving the fourth message for inquiring about the terminal capability from the base station; and transmitting a fifth message including information about the changed terminal capability to the base station.

First claim

What is claimed is:

1 . A method for notifying of change of capability of a terminal (hereinafter, “terminal capability”) without radio resource control (RRC) connection reconfiguration in a wireless communication system, comprising:
transmitting a second message for notifying that terminal capability is variable to a base station upon reception of a first message for inquiring about terminal capability;
transmitting a third message for notifying of terminal capability change to the base station when the terminal capability has changed, wherein the third message triggers transmission of a fourth message for inquiring about the changed terminal capability;
receiving the fourth message for inquiring about the terminal capability from the base station; and
transmitting a fifth message including information about the changed terminal capability to the base station.

2 . The method according to claim 1 , further comprising periodically checking whether the terminal capability has changed.

3 . The method according to claim 1 , wherein the information about the changed terminal capability includes information about the entire capability of the terminal or information about capability changed or added from among information about capability previously notified by the terminal.

4 . The method according to claim 1 , further comprising transmitting a sixth message for notifying an information set about variable terminal capability to the base station.

5 . The method according to claim 1 , further comprising reporting, to the base station, feedback information according to the changed terminal capability irrespective of whether the base station has changed setup for the terminal capability, when the terminal capability has changed.

6 . The method according to claim 5 , wherein the information set about the terminal capability is predetermined according to individual information of the feedback information.

7 . The method according to claim 6 , wherein the setup for the terminal capability is changed into the predetermined information set about the terminal capability.

8 . A terminal configured to notify of change of capability of a terminal (hereinafter, “terminal capability”) without radio resource control (RRC) connection reconfiguration in a wireless communication system, the terminal comprising:
a radio frequency (RF) unit; and
a processor configured to control the RF unit,
wherein the processor is configured to transmit a second message for notifying that terminal capability is variable to a base station upon reception of a first message for inquiring about terminal capability, to transmit a third message for notifying of terminal capability change to the base station when the terminal capability has changed, the third message triggering transmission of a fourth message for inquiring about the changed terminal capability; to receive the fourth message for inquiring about the terminal capability from the base station and to transmit a fifth message including information about the changed terminal capability to the base station.

9 . The terminal according to claim 8 , wherein the processor is configured to periodically check whether the terminal capability has changed.

10 . The terminal according to claim 8 , wherein the information about the changed terminal capability includes information about the entire capability of the terminal or information about capability changed or added from among information about capability previously notified by the terminal.

11 . The terminal according to claim 8 , wherein the processor is configured to transmit a sixth message for notifying an information set about variable terminal capability to the base station.

12 . The terminal according to claim 8 , wherein the processor is configured to report, to the base station, feedback information according to the changed terminal capability irrespective of whether the base station has changed setup for the terminal capability, when the terminal capability has changed.

13 . The terminal according to claim 12 , wherein the information set about the terminal capability is predetermined according to individual information of the feedback information.

14 . The terminal according to claim 13 , wherein the setup for the terminal capability is changed to the predetermined information set about the terminal capability.

Assignees

• Lg Electronics Inc

Inventors

• Yum Kunil
• Hwang Daesung
• Kim Kijun
• Yi Yunjung

Classifications

• H04W76/046

  Electricity · mapped topic

• H04W72/0446 Primary

  Resources in time domain, e.g. slots or frames · CPC title

• H04W88/02

  Terminal devices · CPC title

• H04L5/0007 Primary

  the frequencies being orthogonal, e.g. OFDM(A) or DMT · CPC title

• H04L5/001

  the frequencies being arranged in component carriers · CPC title