US 10,219,276 B2Granted

Integrated circuit

AssigneeSun Patent Trust

InventorsAkihiko Nishio, Seigo Nakao

Life of this patent

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Abstract

A wireless communication base station device which makes it possible to provide a base station, terminal and CCE allocation method capable of reducing the number of times blind decoding of a terminal is performed, without increasing the CCE block rate, even when a plurality of unit bands are set in a terminal. In this device, a search space setting section (103) sets in each of a plurality of unit bands a common search space in respect of a terminal which is communicating using the plurality of unit bands and other terminals, and sets in each of the plurality of unit bands an individual search space in respect of the terminal. An allocation section (106) allocates control information solely to CCEs within the common search spaces set in specified unit bands among the plurality of unit bands, or solely to CCEs within individual search spaces set in specified unit bands.

Claims16

Dependent claims

An integrated circuit comprising:

control circuitry, which, in operation:
configures a common search space for a plurality of terminals that communicate with a communication apparatus using a plurality of component carriers, and configures a specific search space for each of the plurality of terminals;
assigns control information including resource assignment information to a control channel element (CCE) in the common search space or the specific search space;
and
transmitting circuitry, which, in operation, controls transmission of the control information to one or more of the plurality of terminals,
wherein:
the control information, a format of which is common to the plurality of terminals and which includes a carrier indicator that indicates each of the plurality of component carriers, is assigned to the CCE in the specific search space configured in a primary component carrier among the plurality of component carriers;
and
the control information, a format of which is common to the plurality of terminals and which includes no carrier indicator, is assigned to the CCE in the common search space configured in a primary component carrier among the plurality of component carriers.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/634,376Filed 27 Jun 2017 · continuation
Priority: JP 2009-18872117 Aug 2009
Published: US 2017/0295577 A112 Oct 2017
Granted: 26 Feb 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H04W 72/0453
Based on the type of the allocated resource: resources in frequency domain, e.g. a carrier in FDMA
H04L 1/0038
Arrangements specific to the receiver: blind format detection
H04L 5/0007
Time-frequency: the frequencies being orthogonal, e.g. OFDM or DMT
H04L 5/003
Arrangements affording multiple use of the transmission path: arrangements for allocating sub-channels of the transmission path

Family

PCT/JP2010/005070Parent of this continuation · filed 16 Aug 2010
Application15/098,623Parent of this continuation · filed 14 Apr 2016
US 9,350,486 B2Parent of this continuation · filed 24 May 2016
US 2017/0295577 A1Pre-grant publication · published 12 Oct 2017
US 9,730,225 B2Parent of this continuation
Application13/388,473Parent of this continuation
US 2012/0127946 A1Published application
US 2016/0234843 A1Published application
US 10,219,276 B2This patent

From the US filing history. Foreign family members aren’t listed.