Title:
A METHOD AND APPARATUS FOR CARRIER AGGREGATION PREPARATION CONTROL IN A MOBILE COMMUNICATIONS SYSTEM
Document Type and Number:
WIPO Patent Application WO/2012/023161
Kind Code:
A1
Abstract:
In order for a Mobile Terminal to setup Carrier Aggregation (CA) configuration, it needs to provide relevant information for the network to identify the suitable serving cells candidates from other carrier frequency, e.g. the Physical Cell identity (PCI), the Carrier Frequency (Freq). This information should be used by Base Station (e.g. eNB) to determine the suitable serving cells from other carrier frequency in order to perform CA setup configuration. However, having the needs for Mobile Terminal to measure and report these cells information to Base Station after connection establishment, it results in Mobile Terminal with CA capable to experience slower data rate services due to delay in CA setup configuration process. The present invention provides a method to generate and upload the list of potential serving cells information from each carrier frequency to Base Station. Making use of this information, Base Station can decide the suitable serving cell from each carrier frequency to be accessed by Mobile Terminal. This obviates the extra operation before the CA setup procedure. The present invention also provides variants to enable Base Station to control the uploading scheme; and to monitor the validity of the uploaded cells information for Mobile Terminal in high mobility environment. With this mechanism, experience of slower data rate services by Mobile Terminal due to delay in CA setup procedure can be avoided.
Inventors:
TOH HONG TAT
Application Number:
PCT/JP2010/005150
Publication Date:
February 23, 2012
Filing Date:
August 20, 2010
Export Citation:
Assignee:
PANASONIC CORP (JP)
TOH HONG TAT
TOH HONG TAT
International Classes:
H04W24/10
Domestic Patent References:
| WO2010016680A2 | 2010-02-11 | |||
| WO2006105307A1 | 2006-10-05 | |||
| WO2007050729A1 | 2007-05-03 | |||
| WO2010072071A1 | 2010-07-01 | |||
| WO2009149665A1 | 2009-12-17 |
Other References:
TECHNICAL SPECIFICATION GROUP RADIO ACCESS NETWORK: "Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA) Radio Resource Control (RRC); Protocol specification (Release 8)", 3GPP TS 36.331 V8.5.0,, vol. 36.331, no. V8.5.0, 20 March 2009 (2009-03-20), pages 1 - 22, XP002599074
Attorney, Agent or Firm:
WASHIDA, Kimihito (Shintoshicenter Bldg. 24-1, Tsurumaki 1-chome, Tama-sh, Tokyo 34, JP)
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Claims: