MOBILE STATION APPARATUS, MOBILE COMMUNICATION SYSTEM AND COMMUNICATION METHOD

• US 20110274077A1
• Filed: 07/15/2011
• Published: 11/10/2011
• Est. Priority Date: 04/24/2008
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Aiba, Tatsushi, YAMADA, Shohei
• Granted Patent: US 8,885,582 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0089 due to addition or removal of users or terminals
• CPC Class Codes: H04L 5/0096 Indication of changes in allocation
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support

Abstract

In a mobile communication system in which an space of a physical downlink control channel for a mobile station apparatus to search is defined based on a mobile station identity assigned from a base station apparatus, the base station apparatus places a physical downlink control channel including a first mobile station identity or a physical downlink control channel including a second mobile station identity in a search space of a physical downlink control channel corresponding to the first mobile station identity when the base station apparatus assigns a plurality of mobile station identities to the mobile station apparatus, and when a plurality of mobile station identities is assigned from the base station apparatus, the mobile station apparatus performs decoding processing of the physical downlink control channel including the first mobile station identity and the physical downlink control channel including the second mobile station identity in the search space of the physical downlink control channel corresponding to the first mobile station identity.

Claims

1. A mobile communication system in which a space of a physical downlink control channel for a mobile station apparatus to search is defined based on a mobile station identity assigned from a base station apparatus,

wherein the base station apparatus:

set a physical downlink control channel including a specific mobile station identity different from a first mobile station identity and resource allocation information set to a predetermined value, in a search space of a physical downlink control channel corresponding to the first mobile station identity, when having assigned a plurality of mobile station identities mobile station identities to the mobile station apparatus, and

wherein the mobile station apparatus;

deactivates persistently-allocated resources by identifying the resource allocation information set to the predetermined value, when having detected the physical downlink control channel including the specific mobile station identity.

2. The mobile communication system according to claim 1, wherein the specific mobile station identity is C-RNTI for persistent scheduling.

3. A processing method in a mobile communication system in which a space of a physical downlink control channel for a mobile station apparatus to search is defined based on a mobile station identity assigned from a base station apparatus,

wherein the base station apparatus:

set a physical downlink control channel including a specific mobile station identity different from a first mobile station identity and resource allocation information set to a predetermined value, in a search space of a physical downlink control channel corresponding to the first mobile station identity, when having assigned a plurality of mobile station identities to the mobile station apparatus, and

wherein the mobile station apparatus;

deactivates persistently-allocated resources by identifying the resource allocation information set to the predetermined value, when having detected the physical downlink control channel including the specific mobile station identity.

4. The processing method according to claim 3, wherein the specific mobile station identity is C-RNTI for persistent scheduling.

5. A mobile station apparatus in a mobile communication system in which a space of a physical downlink control channel for the mobile station apparatus to search is defined based on a mobile station identity assigned from a base station apparatus,

wherein the mobile station apparatus:

performs decoding processing of a physical downlink control channel including a specific mobile station identity different from a first mobile station identity in a search space of a physical downlink control channel corresponding to the first mobile station identity, when a plurality of mobile station identities has been assigned from the base station apparatus, and

deactivates persistently-allocated resources by identifying resource allocation information set to a predetermined value, when having detected the physical downlink control channel including the specific mobile station identity.

6. The mobile station apparatus according to claim 5, wherein the specific mobile station identity is C-RNTI for persistent scheduling.

7. A processing method in a mobile station apparatus in a mobile communication system in which a space of a physical downlink control channel for the mobile station apparatus to search is defined based on a mobile station identity assigned from a base station apparatus,

wherein the processing method comprising:

performs decoding processing of a physical downlink control channel including a specific mobile station identity different from a first mobile station identity in a search space of a physical downlink control channel corresponding to the first mobile station identity, when a plurality of mobile station identities has been assigned from the base station apparatus, and

deactivates persistently-allocated resources by identifying resource allocation information set to a predetermined value, when having detected the physical downlink control channel including the specific mobile station identity.

8. The processing method according to claim 7, wherein the specific mobile station identity is C-RNTI for persistent scheduling.

9. The mobile station apparatus which executes the processing method according to claim 7 or 8.

10. The mobile station apparatus which executes the processing method according to claim 7 or 8 by means of a plurality of communication function sections and a control section that controls the plurality of communication function sections.

11. A base station apparatus in a mobile communication system in which a space of a physical downlink control channel for a mobile station apparatus to search is defined based on a mobile station identity assigned from the base station apparatus,

wherein the base station apparatus:

set a physical downlink control channel including a specific mobile station identity different from a first mobile station identity and resource allocation information set to a predetermined value, in a search space of a physical downlink control channel corresponding to the first mobile station identity, when having assigned a plurality of mobile station identities to the mobile station apparatus.

12. The base station apparatus according to claim 11, wherein the specific mobile station identity is C-RNTI for persistent scheduling.

13. A processing method in a base station apparatus in a mobile communication system in which a space of a physical downlink control channel for a mobile station apparatus to search is defined based on a mobile station identity assigned from the base station apparatus,

wherein the processing method comprising:

set a physical downlink control channel including a specific mobile station identity different from a first mobile station identity and resource allocation information set to a predetermined value, in a search space of a physical downlink control channel corresponding to the first mobile station identity, when having assigned a plurality of mobile station identities to the mobile station apparatus.

14. The processing method according to claim 13, wherein the specific mobile station identity is C-RNTI for persistent scheduling.

15. The base station apparatus which executes the processing method according to claim 13 or 14.

16. The base station apparatus which executes the processing method according to claim 13 or 14 by means of a plurality of communication function sections and a control section which controls the plurality of communication function sections.

17. A processor used in a mobile station apparatus in a mobile communication system in which a space of a physical downlink control channel for the mobile station apparatus to search is defined based on a mobile station identity assigned from a base station apparatus,

wherein the processor comprising:

performs decoding processing of a physical downlink control channel including a specific mobile station identity different from a first mobile station identity in a search space of a physical downlink control channel corresponding to the first mobile station identity, when a plurality of mobile station identities has been assigned from the base station apparatus, and

deactivates persistently-allocated resources by identifying resource allocation information set to a predetermined value, when having detected the physical downlink control channel including the specific mobile station identity.

18. The processor according to claim 17, wherein the specific mobile station identity is C-RNTI for persistent scheduling.

19. The processor according to claim 17 or 18, wherein the processor is comprised of a plurality of communication function sections and a control section that controls the plurality of communication function sections.

20. A processor used in a base station apparatus in a mobile communication system in which a space of a physical downlink control channel for a mobile station apparatus to search is defined based on a mobile station identity assigned from the base station apparatus,

wherein the processor comprising:

set a physical downlink control channel including a specific mobile station identity different from a first mobile station identity and resource allocation information set to a predetermined value, in a search space of a physical downlink control channel corresponding to the first mobile station identity, when having assigned a plurality of mobile station identities to the mobile station apparatus.

21. The processor according to claim 20, wherein the specific mobile station identity is C-RNTI for persistent scheduling.

22. The processor according to claim 20 or 21, wherein the processor is comprised of a plurality of communication function sections and a control section that controls the plurality of communication function sections.