Mobile communication system

• US 8,908,560 B2
• Filed: 06/15/2010
• Issued: 12/09/2014
• Est. Priority Date: 06/19/2009
• Status: Active Grant

• Current Assignee: Mitsubishi Electric Corporation
• Original Assignee: Mitsubishi Electric Corporation
• Inventors: Maeda, Miho, Mochizuki, Mitsuru, Saegusa, Taiga, Iwane, Yasushi
• Primary Examiner(s): Sheikh, Ayaz
• Assistant Examiner(s): ASEFA, DEBEBE A
• Application Number:
  US13/378,380
• Publication Number:
  US 20120087314A1
• Time in Patent Office: 1,638 Days
• Field of Search: 370254-350, 709201-213
• US Class Current: 370/253
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/12 Access point controller devices

Abstract

In a mobile communication system according to the present invention, with the separate use of a plurality of component carriers or with the use of a carrier set including the plurality of component carriers aggregated, a base station performs radio communication with a user equipment corresponding to the component carrier or a user equipment corresponding to the aggregated carriers. In particular, in a case where the base station performs radio communication with the user equipment corresponding to the aggregated carriers with the use of the aggregated carriers, each of a plurality of transport blocks created by dividing a transport channel is transmitted per each of the plurality of component carriers constituting the aggregated carriers, and control information related to radio communication between the base station and the user equipment corresponding to the aggregated carriers is transmitted such that physical information of the corresponding component carrier is identifiable.

Claims

1. A mobile communication system in which, with the separate use of a plurality of component carriers or with the use of aggregated carriers including said plurality of component carriers aggregated, a base station performs radio communication with a user equipment corresponding to said component carrier or a user equipment corresponding to said carrier set,

wherein in a case where the base station performs radio communication with the user equipment corresponding to said aggregated carriers with the use of said aggregated carriers, each of a plurality of transport blocks created by dividing a transport channel is transmitted per each of said plurality of component carriers constituting said aggregated carriers, and control information related to radio communication between the base station and the user equipment corresponding to said aggregated carriers is transmitted so that physical information of the corresponding component carrier is identifiable.

2. The mobile communication system according to claim 1, wherein said control information is RRC information.

3. The mobile communication system according to claim 1, wherein said control information is MAC information.

4. The mobile communication system according to claim 1, wherein said control information is transmitted using a single transport block of said plurality of transport blocks.

5. The mobile communication system according to claim 1, wherein said control information includes information for identifying physical information of the corresponding component carrier.

6. The mobile communication system according to claim 1, wherein:

said control information comprises RRC information and MAC information;

said RRC information includes component carrier identification information for identifying the component carrier; and

said MAC information includes information for associating said component carrier identification information with physical information of said component carrier.

7. The mobile communication system according to claim 1, wherein data is transmitted using the component carrier selected from a candidate set including aggregated candidates for said component carriers.

8. The mobile communication system according to claim 7, wherein said control information is transmitted using the component carrier included in said candidate set.

9. The mobile communication system according to claim 7, wherein a predetermined upper limit is provided to the number of component carriers included in said candidate set.

10. The mobile communication system according to claim 7, wherein the contents of said control information are common to the component carriers included in said candidate set.

11. The mobile communication system according to claim 7, wherein a radio resource for transmitting data related to a part of the component carriers included in said candidate set is secured.

12. The mobile communication system according to claim 9, wherein said predetermined upper limit is determined by said base station or by said user equipment.