发明名称 |
Base station, terminal, band allocation method, and downlink data communication method |
摘要 |
Provided are a base station, a terminal, a band allocation method, and a downlink data communication method in which a mapping method for synchronization signals and report signals is implemented with high resource usage efficiency when a first system in which an independent single communication is allocated to a unit band co-exists with a second system in which a plurality of unit bands can be allocated to a single communication. In a base station, an OFDM signal generation unit maps primary synchronization channel (P-SCH), secondary synchronization channel (S-SCH), primary broadcast channel (P-BCH), and dynamic broadcast channel (D-BCH), which can be decoded by both an LTE terminal and an LTE+ terminal, to some of a plurality of unit bands. The OFDM signal generation unit also maps D-BCH+, which can be decoded only by an LTE+ terminal, to all of the plurality of unit bands to produce a multiplexed transmission signal. |
申请公布号 |
US9049705(B2) |
申请公布日期 |
2015.06.02 |
申请号 |
US201414550848 |
申请日期 |
2014.11.21 |
申请人 |
Panasonic Intellectual Property Corporation of America |
发明人 |
Nakao Seigo;Suzuki Hidetoshi;Nishio Akihiko;Aoyama Takahisa;Hiramatsu Katsuhiko |
分类号 |
H04W72/04;H04L5/00;H04W56/00 |
主分类号 |
H04W72/04 |
代理机构 |
Seed IP Law Group PLLC |
代理人 |
Seed IP Law Group PLLC |
主权项 |
1. A communication apparatus which communicates with a user equipment on a plurality of component carriers in a first system, the first system being different from a second system where another user equipment can communicate on a single component carrier of the plurality of component carriers, the communication apparatus comprising:
a generator which, in operation, generates directive information, the directive information being necessary for the user equipment to receive a PDCCH (Physical Downlink Control Channel) in a second component carrier that is to be added to and is different from a first component carrier, the first component carrier being a component carrier in which synchronization is performed by the user equipment, and the directive information including a downlink frequency bandwidth of the second component carrier, a number of antennas for use in the second component carrier, and resources used to transmit a response signal in the second component carrier responsive to an uplink data signal; and a transmitter which, in operation, transmits the directive information to the user equipment in the first component carrier on a PDSCH (Physical Downlink Shared Channel) and transmits the PDCCH to the user equipment in the second component carrier after transmitting the directive information. |
地址 |
Torrance CA US |