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1. (WO2018126879) RANDOM ACCESS METHOD, USER EQUIPMENT AND NETWORK DEVICE

Pub. No.:    WO/2018/126879    International Application No.:    PCT/CN2017/116834
Publication Date: Fri Jul 13 01:59:59 CEST 2018 International Filing Date: Tue Dec 19 00:59:59 CET 2017
IPC: H04W 48/12
H04W 74/08
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: LIU, Jianqin
刘建琴
Title: RANDOM ACCESS METHOD, USER EQUIPMENT AND NETWORK DEVICE
Abstract:
Provided are a random access method, a user equipment and a network device, wherein same can reduce the interference to adjacent cells. The method comprises: a user equipment (UE) receiving at least two groups of random access configuration parameters sent by a network device, wherein each group of random access configuration parameters comprises the maximum number of transmission times of a random access preamble and/or a power adjustment step length of the random access preamble during retransmission; the UE selecting, according to the number and/or the threshold value of transmitted beams of the UE, one group of random access configuration parameters from the at least two groups of random access configuration parameters; the UE determining, based on the maximum number of transmission times of the random access preamble in the selected random access configuration parameters and/or the power adjustment step length of the random access preamble during retransmission, the transmission power of the random access preamble; and the UE sending, based on the transmission power, the random access preamble to the network device.