Wireless communication apparatus

• US 8,311,135 B2
• Filed: 04/28/2006
• Issued: 11/13/2012
• Est. Priority Date: 04/28/2006
• Status: Active Grant

• Current Assignee: Meta Platforms, Inc. (f/k/a Facebook, Inc.)
• Original Assignee: Mitsubishi Electric Corporation
• Inventors: Suzuki, Kuniyuki
• Primary Examiner(s): Puente, Eva
• Application Number:
  US12/298,138
• Publication Number:
  US 20090202008A1
• Time in Patent Office: 2,391 Days
• Field of Search: 375/260, 375/267, 375/219, 370/203, 370/204, 370/310, 455/450, 455/423
• US Class Current: 375/260
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/006 Quality of the received signal, e.g. BER, SNR, water filling

Abstract

A wireless communication device including a sending data amount determination unit, a data sending unit, a monitor function unit, a transmission control data producing unit, a transmission control data sending unit, a data reception unit, and an application I/F (interface) unit. The transmission control data sending unit includes a transmission control data separation unit, a transmission control data replication unit, and a data mapping unit.

Claims

1. A wireless communication device in which sending data and transmission control data are sent and received in resource blocks,

the wireless communication device comprising:

a transmission control data separation unit which receives said transmission control data and separates said transmission control data into resource dependent data dependent on a transmission resource and resource independent data not dependent on the transmission resource, said resource dependent data being provided for each resource block according to the number of resource blocks used in transmission of the transmission control data; and

a transmission control data mapping unit which

receives said resource dependent data and said resource independent data, and

performs mapping such that said resource independent data and said resource dependent data are included in each resource block, and

performs different scrambling processing to said resource independent data in each resource block.

2. The wireless communication device according to claim 1, wherein a scrambling code is multiplied to said resource independent data in said scrambling processing, said scrambling code decreasing a ratio of a peak electric power to an average electric power in sending said transmission control data.

3. The wireless communication device according to claim 1, wherein said transmission control data mapping unit maps said resource independent data and said resource dependent data such that part of one or a plurality of sub-frames of a plurality of sub-frames provided by time dividing each resource block are occupied.

4. The wireless communication device according to claim 1, wherein said transmission control data mapping unit maps said resource independent data and said resource dependent data across all sub-carriers of a plurality of sub-carriers provided by frequency-dividing said each resource block.

5. The wireless communication device according to claim 1, wherein said transmission control data mapping unit maps said resource independent data and said resource dependent data across some sub-carriers of a plurality of sub-carriers provided by frequency-dividing each resource block.

6. The wireless communication device according to claim 5, wherein said transmission control data mapping unit maps said resource independent data by further dividing timing in each sub-frame of each resource block.

7. The wireless communication device according to claim 1, further comprising

a transmission control data replication unit which has at least a function of receiving said resource independent data to replicate said resource independent data according to said number of resource blocks, wherein

said transmission control data mapping unit receives said resource dependent data and said resource independent data including a replica.

8. The wireless communication device according to claim 7, wherein said transmission control data replication unit produces dummy data including only data of “

0”

or data of “

1”

, and

said transmission control data mapping unit maps said resource independent data in part of each resource block and maps said dummy data in which all bits corresponding to said resource independent data are fixed to “

0”

or “

1”

, in a rest of each resource block.

9. The wireless communication device according to claim 1 further comprising:

an error correction unit which receives said resource dependent data and said resource independent data and performs error correction coding processing to said resource dependent data and said resource independent data to produce error-correction-coded resource dependent data and error-correction-coded resource independent data; and

a puncture unit which receives said error-correction-coded resource dependent data and said error-correction-coded resource independent data and performs puncture processing to an excess bit to produce punctured resource independent data, said excess bit exceeding a data amount sendable by each resource block in error-correction-coded resource independent data,

wherein said transmission control data mapping unit receives said error-correction-coded resource dependent data and said punctured resource independent data and performs mapping such that said error-correction-coded resource dependent data and said punctured resource independent data are included in each resource block.

10. A wireless communication method, implemented by a wireless communication device, in which sending data and transmission control data are sent and received in resource blocks, the wireless communication method comprising:

receiving, at a transmission control data separation unit, said transmission control data;

separating, at the transmission control data separation unit, said transmission control data into resource dependent data dependent on a transmission resource and resource independent data not dependent on the transmission resource, said resource dependent data being provided for each resource block according to the number of resource blocks used in transmission of the transmission control data;

receiving, at a transmission control data mapping unit, said resource dependent data and said resource independent data;

performing, at the transmission control data mapping unit, mapping such that said resource independent data and said resource dependent data are included in each resource block; and

performing, at the transmission control data mapping unit, different scrambling processing to said resource independent data in each resource block.