Base station apparatus and communication method for mapping control data and user data

• US 8,467,797 B2
• Filed: 12/21/2009
• Issued: 06/18/2013
• Est. Priority Date: 04/04/2003
• Status: Active Grant

• Current Assignee: Godo Kaisha IP Bridge 1 (IP Bridge, Inc.)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Nishio, Akihiko, Hiramatsu, Katsuhiko, Yoshii, Isamu
• Primary Examiner(s): Cumming, William D
• Application Number:
  US12/643,507
• Publication Number:
  US 20100097998A1
• Time in Patent Office: 1,275 Days
• Field of Search: 370/328, 370/329, 370/342, 370/344, 375/227, 375/299, 455/450, 455/522
• US Class Current: 455/450
• CPC Class Codes: H04B 1/713 using frequency hopping
• CPC Class Codes: H04B 1/715 Interference-related aspects
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 5/0012 Hopping in multicarrier systems for frequency hopping in spread spectrum systems H04B1/713
• CPC Class Codes: H04L 5/006 Quality of the received signal, e.g. BER, SNR, water filling
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

In order to reduce interference between cells through hopping and use frequencies in a good propagation situation, a scheduler section 102 carries out scheduling for determining to which user data should be sent using CQI from each communication terminal apparatus, selects a user signal to be sent in the next frame and determines in which subcarrier block the data should be sent. An MCS decision section 103 selects a modulation scheme and coding method from the CQI of the selected user signal. A subcarrier block selection section 110 selects a subcarrier block instructed by the scheduler section 102 for each user signal. For the respective subcarrier blocks, FH sequence selection sections 111-1 to 111-n select hopping patterns. A subcarrier mapping section 112 maps the user signal and control data to subcarriers according to the selected hopping pattern.

Claims

1. A base station apparatus comprising:

a mapping unit that maps control information to a predetermined block among a plurality of blocks, into which a frequency band is divided, such that the control information is distributed within the predetermined block, and that maps data to a block selected from the plurality of the blocks by frequency hopping the data within the selected block; and

a transmitting unit that transmits the control information mapped to the predetermined block and the data mapped to the selected block.

3. The base station apparatus according to claim 1, wherein the mapping unit maps a plurality of control information for a plurality of data to the predetermined block.

2. A communication method comprising:

mapping control information to a predetermined block among a plurality of blocks, into which a frequency band is divided, such that the control information is distributed within the predetermined block;

mapping data to a block selected from the plurality of the blocks by frequency-hopping the data within the selected block; and

transmitting the control information mapped to the predetermined block and the data mapped to the selected block.