Mobile station apparatus, mobile communication system, and communication method

• US 8,559,384 B2
• Filed: 04/14/2009
• Issued: 10/15/2013
• 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: Yamada, Shohei, Aiba, Tatsushi
• Primary Examiner(s): Moore, Ian N
• Assistant Examiner(s): La, Phong
• Application Number:
  US12/739,182
• Publication Number:
  US 20120140712A1
• Time in Patent Office: 1,645 Days
• Field of Search: 370/329, 370/328, 370/338, 370/348, 370/392
• 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 station apparatus which communicates with a base station apparatus, the mobile station apparatus comprising:

a receiving unit configured to receive, from the base station apparatus, information on a physical downlink control channel in a search space, the search space comprising a plurality of resource elements, the search space being defined based on a first cell-radio network temporary identity; and

a scheduling unit configured to consider the information as a dynamic scheduling allocation for resources which are specified by resource allocation information, by recognizing that the information includes the first cell-radio network temporary identity and the resource allocation information,

the scheduling unit configured to consider the information as a persistent scheduling allocation for the resources which are specified by the resource allocation information, by recognizing that the information includes a second cell-radio network temporary identity and the resource allocation information,

the scheduling unit configured to consider the information as a deactivation of the persistent scheduling allocation, by recognizing that the information includes the second cell-radio network temporary identity and a second resource allocation information, and that a field of the second resource allocation information is set to a single predetermined value,

wherein the first cell-radio network temporary identity is an identifier used for the dynamic scheduling and the second cell-radio network temporary identity is an identifier used for the persistent scheduling.

2. A processing method in a mobile station apparatus which communicates with a base station apparatus, the processing method comprising:

receiving, from the base station apparatus, information on a physical downlink control channel in a search space, the search space comprising a plurality of resource elements, the search space being defined based on a first cell-radio network temporary identity; and

considering the information as a dynamic scheduling allocation for resources which are specified by resource allocation information, by recognizing that the information includes the first cell-radio network temporary identity and the resource allocation information,

considering the information as a persistent scheduling allocation for the resources which are specified by the resource allocation information, by recognizing that the information includes a second cell-radio network temporary identity and the resource allocation information,

considering the information as a deactivation of the persistent scheduling allocation, by recognizing that the information includes the second cell-radio network temporary identity and a second resource allocation information, and that a field of the second resource allocation information is set to a single predetermined value,

wherein the first cell-radio network temporary identity is an identifier used for the dynamic scheduling and the second cell-radio network temporary identity is an identifier used for the persistent scheduling.

3. A base station apparatus which communicates with a mobile station apparatus, the base station apparatus comprising:

a transmitting unit configured to transmit, to the mobile station apparatus, information on a physical downlink control channel in a search space, the search space comprising a plurality of resource elements, the search space being defined based on a first cell-radio network temporary identity; and

a scheduling unit configured to consider the information as a dynamic scheduling allocation for resources which are specified by resource allocation information, by recognizing that the information includes the first cell-radio network temporary identity and the resource allocation information,

the scheduling unit configured to consider the information as a persistent scheduling allocation for the resources which are specified by the resource allocation information, by recognizing that the information includes a second cell-radio network temporary identity and the resource allocation information,

the scheduling unit configured to consider the information as a deactivation of the persistent scheduling allocation, by recognizing that the information includes the second cell-radio network temporary identity and a second resource allocation information, and that a field of the second resource allocation information is set to a single predetermined value,

wherein the first cell-radio network temporary identity is an identifier used for the dynamic scheduling and the second cell-radio network temporary identity is an identifier used for the persistent scheduling.

4. A processing method in a base station apparatus which communicates with a mobile station apparatus, the processing method comprising:

transmitting, to the mobile station apparatus, information on a physical downlink control channel in a search space, the search space comprising a plurality of resource elements, the search space being defined based on a first cell-radio network temporary identity; and

considering the information as a dynamic scheduling allocation for resources which are specified by resource allocation information, by recognizing that the information includes the first cell-radio network temporary identity and the resource allocation information,

considering the information as a persistent scheduling allocation for the resources which are specified by the resource allocation information, by recognizing that the information includes a second cell-radio network temporary identity and the resource allocation information,

considering the information as a deactivation of the persistent scheduling allocation, by recognizing that the information includes the second cell-radio network temporary identity and a second resource allocation information, and that a field of the second resource allocation information is set to a single predetermined value,

wherein the first cell-radio network temporary identity is an identifier used for the dynamic scheduling and the second cell-radio network temporary identity is an identifier used for the persistent scheduling.