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    • 10. 发明申请
    • METHOD, APPARATUS AND COMPUTER PROGRAM FOR POWER CONTROL RELATED TO RANDOM ACCESS PROCEDURES
    • 方法,与随机访问程序相关的功率控制的装置和计算机程序
    • WO2009135848A2
    • 2009-11-12
    • PCT/EP2009/055430
    • 2009-05-05
    • NOKIA SIEMENS NETWORKS OYKORHONEN, JuhaLINDHOLM, Jari Olavi
    • KORHONEN, JuhaLINDHOLM, Jari Olavi
    • H04W52/146H04W52/10H04W52/16H04W52/242H04W52/50
    • A first power control adjustment state g( i ) and a second power control adjustment state f( i ) are initialized for i =0 to each reflect an open loop power control error. An initial transmit power for a shared uplink channel is computed using full pathloss compensation. The computed initial transmit power depends on a preamble power of a first message sent on an access channel, and the initial transmit power is initialized with the second power control adjustment state f(0). A third message is sent from a transmitter on an uplink shared channel at the initial transmit power. In various implementations, the power for i =0 on the uplink control channel is also initialized similar to the initial transmit power for the third message and using full pathloss compensation, and after the third message (and retransmissions of it), subsequent messages sent on the uplink shared channel are sent at a power that is computed using fractional pathloss compensation.
    • 对i = 0初始化第一功率控制调整状态g(i)和第二功率控制调整状态f(i),以反映开环功率控制误差。 使用全路径损耗补偿来计算共享上行链路信道的初始发射功率。 所计算的初始发送功率取决于在接入信道上发送的第一消息的前导码功率,并且初始发射功率用第二功率控制调整状态f(0)初始化。 以初始发射功率从上行链路共享信道上的发射机发送第三消息。 在各种实施方案中,上行链路控制信道上的i = 0的功率也被初始化,类似于第三消息的初始发射功率并使用全路径损耗补偿,并且在第三消息(及其重发)之后,发送后续消息 以使用分数路径损耗补偿计算的功率发送上行链路共享信道。