COMMUNICATION SYSTEM

• US 20150131565A1
• Filed: 06/07/2013
• Published: 05/14/2015
• Est. Priority Date: 06/07/2012
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Nakashima, Daiichiro, Shimezawa, Kazuyuki, Nogami, Toshizo, Imamura, Kimihiko
• Granted Patent: US 9,832,761 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 1/1864 ARQ related signaling H04L1/1607 takes precedence
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

It is possible to efficiently transmit and receive signals containing uplink control information between a base station apparatus and a mobile station apparatus.

eREG is configured with a plurality of resources into which one DL PRB pair is divided, eCCE is configured with an aggregation of a plurality of eREGs, a second PDCCH is configured with an aggregation of one or more eCCEs, a PUCCH resource corresponds to each eCCE, a first reception processing unit receives information indicating a plurality of second PDCCH regions and information indicating a PUCCH resource in which association with eCCE of the second PDCCH region for each second PDCCH region is started, from the base station apparatus, and a first control unit configures a PUCCH resource, in which association with eCCE of the second PDCCH region is started, for each second PDCCH region, based on the received information.

Claims

1. A communication system configured with a plurality of terminal apparatuses and a base station apparatus capable of communicating with the plurality of terminal apparatuses by using EPDCCH and PUCCH, wherein

the base station apparatus comprises:

a second radio resource control unit configured to configure a plurality of EPDCCH sets, and to configure a PUCCH resource in which association with an ECCE index is started, for the configuration of each of the EPDCCH sets; and

a second transmission processing unit configured to transmit information indicating the configurations of the plurality of EPDCCH sets and a plurality of the PUCCH resources which are configured by the second radio resource control unit, to the terminal apparatuses, and

the terminal apparatus comprises;

a first reception processing unit configured to receive information indicating a plurality of EPDCCH sets and information indicating a PUCCH resource offset for each of the EPDCCH sets from the base station apparatus;

a first radio resource control unit configured to configure the plurality of EPDCCH sets according to information received by the first reception processing unit; and

a first control unit configured to configure a PUCCH resource, in which association with an ECCE index is started, for each of the EPDCCH sets which are configured by the first radio resource control unit, according to the information received by the first reception processing unit.

2-12. -12. (canceled)