Control information transmission apparatus, control information reception apparatus, and control information transmission method

Patent metadata

Field	Value
Publication number	US-9444571-B2
Application number	US-201113575466-A
Country	US
Kind code	B2
Filing date	Jan 28, 2011
Priority date	Jan 28, 2010
Publication date	Sep 13, 2016
Grant date	Sep 13, 2016

Abstract

A control information transmission apparatus which can reduce the interference power of the control signal of the terminal connected to the femtocell is provided. The control information transmission apparatus comprises an arrangement unit that arranges some or all of control signals for a terminal in an extension part among resources including a compatible part and the extension part; and a transmission unit that transmits some or all of the arranged control signals for the terminal.

First claim

The invention claimed is:

1. A control information transmission apparatus comprising:
an arrangement circuit that arranges control signals for a terminal in resources of a control region of a compatible part and in resources of a control region of an extension part, wherein the control signals are for the terminal in the extension part and the control signals are physical downlink control channels (PDCCH), and a component carrier comprises the compatible part and the extension part, the compatible part and the extension part each comprising a control region; and
a transmitter that transmits the arranged control signals for the terminal,
wherein the arrangement circuit arranges the control signals for the terminal in the extension part and the compatible part among the resources,
the extension part is provided in a frequency band adjacent to the compatible part,
the arrangement circuit forms predetermined units of the resources for the control signals and defines numbers which are consecutive from the compatible part to the extension part and are allocated to the predetermined units of the resources,
the arrangement circuit makes a plurality of units of the predetermined units of the compatible part correspond to one unit or a plurality of units of the predetermined units of the extension part on the basis of the numbers, and
when the control signals for the terminal are arranged in one unit or a plurality of units among the plurality of units of the predetermined units of the compatible part and one unit or a plurality of units of the predetermined units of the extension part, the control signals for the terminal are not arranged in the other units among the plurality of units of the predetermined units of the compatible part,
the predetermined units of the resources for the control signal is a Control Channel Element (CCE), and
the numbers which are consecutive from the compatible part to the extension part and are allocated to the predetermined units of the resources are CCE numbers.

2. The control information transmission apparatus according to claim 1 ,
wherein the compatible part is a system band used by a plurality of systems which need to retain compatibility, and
the extension part is a frequency resource that is provided in a frequency band adjacent to the compatible part and is capable of allocating a transmission signal.

3. A control information transmission apparatus comprising:
an arrangement circuit that arranges control signals for a terminal in resources of a control region of a compatible part and in resources of a control region of an extension part, wherein the control signals are for the terminal in the extension part and the control signals are physical downlink control channels (PDCCH), and a component carrier comprises the compatible part and the extension part, the compatible part and the extension part each comprising a control region; and
a transmitter that transmits the arranged control signals for the terminal,
wherein the arrangement circuit arranges all of the control signals for the terminal in an extension part obtained by logically integrating a plurality of extension parts,
the extension part is provided in a frequency band adjacent to the compatible part,
the arrangement circuit forms predetermined units of the resources for the control signals and defines numbers which are consecutive from the compatible part to the extension part and are allocated to the predetermined units of the resources,
the arrangement circuit makes a plurality of units of the predetermined units of the compatible part correspond to one unit or a plurality of units of the predetermined units of the extension part on the basis of the numbers,
when the control signals for the terminal are arranged in one unit or a plurality of units among the plurality of units of the predetermined units of the compatible part and one unit or a plurality of units of the predetermined units of the extension part, the control signals for the terminal are not arranged in the other units among the plurality of units of the predetermined units of the compatible part,
the predetermined units of the resources for the control signal is a Control Channel Element (CCE), and
the numbers which are consecutive from the compatible part to the extension part and are allocated to the predetermined units of the resources are CCE numbers.

4. The control information transmission apparatus according to claim 3 ,
wherein the arrangement circuit arranges all of the control signals for the terminal in an extension part obtained by logically integrating a plurality of extension parts laid across the compatible part, among the plurality of extension parts.

5. The control information transmission apparatus according to claim 3 ,
wherein the compatible part is a system band used by a plurality of systems which need to retain compatibility, and
the extension part is a frequency resource that is provided in a frequency band adjacent to the compatible part and is capable of allocating a transmission signal.

6. A control information transmission method comprising:
arranging control signals for a terminal in resources of a control region of a compatible part and in resources of a control region of an extension part, wherein the control signals are for the terminal in the extension part and the control signals are physical downlink control channels (PDCCH), and a component carrier comprises the compatible part and the extension part, the compatible part and the extension part each comprising a control region; and
transmitting the arranged control signals for the terminal,
forming predetermined units of the resources for the control signals and defining numbers which are consecutive from the compatible part to the extension part and are allocated to the predetermined units of the resources, and
making a plurality of units of the predetermined units of the compatible part correspond to one unit or a plurality of units of the predetermined units of the extension part on the basis of the numbers,
wherein the arranging step arranges the control signals for the terminal in the extension part and the compatible part among the resources,
the extension part is provided in a frequency band adjacent to the compatible part,
when the control signals for the terminal are arranged in one unit or a plurality of units among the plurality of units of the predetermined units of the compatible part and one unit or a plurality of units of the predetermined units of the extension part, the control signals for the terminal are not arranged in the other units among the plurality of units of the predetermined units of the compatible part,
the predetermined units of the resources for the control signal is a Control Channel Element (CCE), and
the numbers which are consecutive from the compatible part to the extension part and are allocated to the predetermined units of the resources are CCE numbers.

7. The control information transmission method according to claim 6 ,
wherein the compatible part is a system band used by a plurality of systems which need to retain compatibility, and
the extension part is a frequency resource that is provided in a frequency band adjacent to the compatible part and is capable of allocating a transmission signal.

8. The control information transmission method according to claim 6 ,
wherein the arranging step arranges all of the control signals for the terminal in an extension part obtained by logically integrating a plurality of extension parts.

9. The control information transmission method according to claim 8 ,
wherein the arranging step arranges all of the control signals for the terminal in an extension part obtained by logically

Assignees

• Sumasu Atsushi
• Nishio Akihiko
• Horiuchi Ayako
• Hoshino Masayuki
• Ogawa Yoshihiko
• Iwai Takashi
• Takaoka Shinsuke
• Imamura Daichi
• Nakao Seigo
• Panasonic Ip Corp America

Inventors

• Sumasu Atsushi
• Nishio Akihiko
• Horiuchi Ayako
• Hoshino Masayuki
• Ogawa Yoshihiko
• Iwai Takashi
• Takaoka Shinsuke
• Imamura Daichi
• Nakao Seigo

Classifications

• H04W84/045

  using private Base Stations, e.g. femto Base Stations, home Node B · CPC title

• H04L5/001

  the frequencies being arranged in component carriers · CPC title

• H04L27/2626

  Arrangements specific to the transmitter only · CPC title

• H04J11/0056 Primary

  Inter-base station aspects · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title