Wireless communication system and wireless communication method

Patent metadata

Field	Value
Publication number	US-9408088-B2
Application number	US-201313790029-A
Country	US
Kind code	B2
Filing date	Mar 8, 2013
Priority date	Mar 14, 2006
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

A wireless communication system including a transmitting and receiving device that performs communications with the transmitting device, using a radio frame containing control information and data, wherein the transmitting device includes: a first generating unit that generates first control information able to be estimated by the receiving device; a second generating unit that generates second control information used for control of communication from the receiving device to the transmitting device and unable to be estimated by the receiving device; a multiplexing unit that multiplexes the control and data information so that the first control information is allocated in the control information and the second control information is allocated in the data in the radio frame; a transmitting unit a signal multiplexed by the multiplexing unit; the receiving device includes a receiving unit that receives the signal wherein the second control information is allocated in the data from the transmitting device.

First claim

What is claimed is:

1. A wireless communication system, comprising:
a transmitting device; and
a receiving device that performs communications with the transmitting device by using a radio frame containing a pilot signal, control information and data,
the transmitting device including:
a generator that generates control information other than the pilot signal, the control information including at least one of channel quality information, a modulation method and a coding rate, the control information used for control communication from the receiving device to the transmitting device, and the control information being able to be allocated to either a control channel or a data channel, wherein at least one portion of the control information is able to be allocated to both the control channel and the data channel;
a multiplexer that multiplexes the control channel and the data channel so that a version of the at least one portion of the control information is carried in each of both the control channel and the data channel; and
a transmitter that transmits a signal multiplexed by the multiplexer; and

the receiving device including:
a receiver that receives the multiplexed signal including the control information other than the pilot signal, the control information including at least one of channel quality information, a modulation scheme and a coding rate, and the control information is used for control of communication from the receiving device to the transmitting device.

2. A wireless communication method of communication performed by a transmitting device and a receiving device by using a radio frame containing a pilot signal, control information and data, the wireless communication method comprising:
by the transmitting device:
generating control information other than the pilot signal, the control information including at least one of channel quality information, a modulation method and a coding rate, the control information used for control of communication from the receiving device to the transmitting device, and the control information being able to be allocated to either a control channel or a data channel, wherein at least one portion of the control information is able to be allocated to be allocated to both the control channel and the data channel;
multiplexing the control channel and the data channel so that a version of the at least one portion of the control information is carried in each of both the control channel and the data channel; and

transmitting a multiplexed signal; and by the receiving device:
receiving the multiplexed signal including the control information other than the pilot signal, the control information including at least one of channel quality information, a modulation method and a coding rate, and the control information is used for control of communication from the receiving device to the transmitting device.

3. A wireless communication system, comprising:
a transmitting device; and
a receiving device that performs communications with the transmitting device by using a radio frame containing a pilot signal, control information and data,
the transmitting device including:
a generator that generates control information other than the pilot signal, the control information including at least one of channel quality information, a modulation method and a coding rate, the control information used for control of communication from the receiving device to the transmitting device, and the control information being able to be allocated to at least one of a control channel and a data channel, wherein at least one portion of the control information is able to be allocated to both the control channel and the data channel;
a multiplexer that multiplexes the control channel and the data channel so that a version of the at least one portion of the control information is carried in each of both the control channel and the data channel; and
a transmitting unit that transmits a signal multiplexed by the multiplexing unit; and
the receiving device including:
a receiver that receives the multiplexed signal including the control information other than the pilot signal, the control information including at least one of channel quality information, a modulation method and a coding rate, and the control information is used for control of communication from the receiving device to the transmitting device.

Assignees

• Fujitsu Ltd

Inventors

• Shiizaki Kotaro
• Seki Hiroyuki
• Suda Kenji
• Jitsukawa Daisuke

Classifications

• H04L1/0028 Primary

  Formatting · CPC title

• H04L1/0003

  by switching between different modulation schemes · CPC title

• H04W24/02 Primary

  Arrangements for optimising operational condition · CPC title

• H04L1/0038

  Blind format detection (for detection of modulation format H04L27/0012) · CPC title

• H04L1/0088

  in control part · CPC title