发明名称 |
Terminal apparatus and method for transmitting a response signal at a terminal |
摘要 |
A radio communication mobile station device reduces the number of blind decoding processes at a mobile station without increasing overhead by report information. The device includes a judgment unit which judges a particular PUCCH to which a response signal corresponding to the downstream line data is to be allocated among a plurality of PUCCH, according to a CCE occupied by PDCCH allocated to a particular search space corresponding to a CCE aggregation size or the PDCCH to which allocation information destined to the local station is allocated among search spaces changing in accordance with the CFI value; and a control unit which controls a cyclic shift amount of a ZAC sequence of the response signal and a block-wise spread code sequence according to a correspondence between CCE occupied by PDCCH allocated to a particular search space and a particular PUCCH resource, the correspondence changing in accordance with the CFI value. |
申请公布号 |
US8897250(B2) |
申请公布日期 |
2014.11.25 |
申请号 |
US201313932882 |
申请日期 |
2013.07.01 |
申请人 |
Panasonic Intellectual Property Corporation of America |
发明人 |
Nakao Seigo;Nishio Akihiko |
分类号 |
H04W4/00;H04B1/00;H04B1/7075;H04L5/00;H04L27/26;H04W72/04;H04L1/00;H04J13/00 |
主分类号 |
H04W4/00 |
代理机构 |
Dickinson Wright PLLC |
代理人 |
Dickinson Wright PLLC |
主权项 |
1. A terminal apparatus comprising:
a decoding section configured to decode a downlink control channel, which is transmitted on one or more control channel element(s) (CCE(s)) with consecutive CCE number(s) from a base station, in a search space that is comprised of a plurality of CCEs; and a transmitting section configured to transmit a response signal to the base station on a uplink control channel, an index of which is associated with a CCE number of the CCE, on which the downlink control channel is transmitted, wherein: the search space is comprised of the plurality of CCEs corresponding to a plurality of downlink control channel candidates to be attempted to be decoded; and the search space for each aggregation size corresponding to a number of the CCE(s), on which the downlink control channel is transmitted, is comprised of the plurality of CCEs that are defined by starting on a CCE with a CCE number, which depends on both a total number of CCEs in a subframe and the aggregation size, and at least part of the search space for the each aggregation size is comprised of CCEs with consecutive CCE numbers. |
地址 |
Torrance CA US |