发明名称 |
Integrated circuit for controlling radio transmission and reception |
摘要 |
Data streams stored in buffers are modulated by modulation sections. Multipliers multiply the signals output from the modulation sections by weights output from a weight control section. The signals output from the multipliers are added up by addition sections, subjected to radio transmission processing by transmission radio sections and sent through antennas. A buffer control section controls the buffers based on a retransmission count output from a retransmission count detection section. The weight control section outputs weights different from weights at the time of previous transmission to the multipliers every time data is retransmitted. This allows a diversity gain at the time of data retransmission to be increased even if a time variation of the propagation path environment for radio signals is slow. |
申请公布号 |
US9008115(B2) |
申请公布日期 |
2015.04.14 |
申请号 |
US201414228692 |
申请日期 |
2014.03.28 |
申请人 |
Panasonic Intellectual Property Corporation of America |
发明人 |
Miyoshi Kenichi |
分类号 |
H04J3/16;H04B7/04;H04B7/06;H04B7/08;H04L1/00;H04L1/06;H04L1/18 |
主分类号 |
H04J3/16 |
代理机构 |
Seed IP Law Group PLLC |
代理人 |
Seed IP Law Group PLLC |
主权项 |
1. An integrated circuit for controlling a process comprising:
multiplying a plurality of streams by a plurality of weights; transmitting the plurality of streams multiplied with the weights using a plurality of antennas; receiving feedback information including acknowledgment/negative acknowledgment (ACK/NACK) information and channel quality information (CQI) which are transmitted from a reception apparatus; and selecting a plurality of weights for a re-transmission, in case the NACK information is received, wherein the plurality of weights to be multiplied with the plurality of streams, respectively, are rearranged between an initial transmission and the re-transmission based on the received CQI, wherein correspondence relationships between the streams and the weights for the re-transmission are derived from the feedback information for the initial transmission. |
地址 |
Torrance CA US |