公开(公告)号：US20130182654A1

公开(公告)日：2013-07-18

申请号：US13521159

申请日：2010-11-30

申请人： Priya Hariharan ,  Akihiko Nishiko ,  Christian Wengerter

发明人： Priya Hariharan ,  Akihiko Nishiko ,  Christian Wengerter

IPC分类号： H04W52/54

CPC分类号： H04W52/54 ,  H04W52/34 ,  H04W52/58

摘要： This invention relates to methods for transmitting and receiving transmit power control commands from a base station to a group of mobile terminals in a OFDM based mobile communication system using component carrier aggregation of plural component carriers. Furthermore, the invention also relates to an implementation of these methods in hardware and software. The invention suggests an efficient scheme for signaling transmit power control commands. In one signaling format multiple TPC commands are sent for the uplink component carriers of a mobile terminal in one TPC message. In another signaling format, the TPC commands for the mobile terminal are signaled in respective TPC messages. A further aspect of the invention is the reduction of signaling overhead by signaling carrier group TPC commands that control the transmit power of a group of component carriers. Similarly, an all carrier TPC command is provided to control the transmit power on all uplink component carriers of a mobile terminal.

摘要翻译： 本发明涉及在基于OFDM的移动通信系统中使用多个分量载波的分量载波聚合从基站发送功率控制命令到一组移动终端的方法。 此外，本发明还涉及这些方法在硬件和软件中的实现。 本发明提出了用于发送功率控制命令的有效方案。 在一个信令格式中，在一个TPC消息中为移动终端的上行链路分量载波发送多个TPC命令。 在另一个信令格式中，用于移动终端的TPC命令在相应的TPC消息中被通知。 本发明的另一方面是通过信令控制一组分量载波的发射功率的载波组TPC命令来减少信令开销。 类似地，提供全载波TPC命令以控制移动终端的所有上行链路分量载波上的发射功率。

公开(公告)号：US08953537B2

公开(公告)日：2015-02-10

申请号：US13521159

申请日：2010-11-30

申请人： Priya Hariharan ,  Akihiko Nishiko ,  Christian Wengerter

发明人： Priya Hariharan ,  Akihiko Nishiko ,  Christian Wengerter

IPC分类号： H04W52/54 ,  H04W52/58 ,  H04W52/34

CPC分类号： H04W52/54 ,  H04W52/34 ,  H04W52/58

摘要： Transmission power control and signaling from a base station to a group of terminals in a system such as LTE supporting carrier aggregation. The transmission power control message has a plurality of transmission control fields of which a multiple is assigned to each terminal. A transmission control field carries a transmission power command for the respective uplink component carrier and the respective mobile terminal. The transmission power control message is mapped to a control signaling region of a downlink component carrier and transmitted within a subframe.

摘要翻译： 在诸如LTE的系统中的基站到一组终端的传输功率控制和信令支持载波聚合。 发送功率控制消息具有多个发送控制字段，其中多个被分配给每个终端。 发送控制字段携带用于各个上行分量载波和各移动终端的发送功率指令。 发送功率控制消息被映射到下行链路分量载波的控制信令区域并在子帧内发送。