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Method, apparatus, device and network system for adding secondary serving cell

專利號
US10834753B2
公開日期
2020-11-10
申請人
Huawei Technologies Co., Ltd.（CN Shenzhen）
發(fā)明人
Tao Zhang; Bo Lin
IPC分類
H04W74/00; H04W56/00; H04W48/00; H04W74/08
技術(shù)領(lǐng)域
message,station,random,secondary,access,terminal,base,tac,cell,serving
地域： Shenzhen, Guangdong

摘要

The present invention provides a method for adding a secondary serving cell, an apparatus, a device, and a network system. The method includes: communicating, with each other to acquire a unified serial number of a random access preamble code, a unified serial number of a PRACH mask code, and a unified cell radio network temporary identifier of a terminal; scrambling the serial number of the random access preamble code and the serial number of the PRACH mask code, and then sending the serial number of the random access preamble code and the serial number of the PRACH mask code to the terminal; and determining, a time advance command TAC according to a random access request message that carries the random access preamble code, and sending the TAC to the terminal.

說明書

Further, before sending the random access resource allocation message to the terminal, the fifth unit 121A further sends a cell radio network temporary identifier of the terminal to the terminal; the primary base station uses the cell radio network temporary identifier of the terminal to scramble the random access resource allocation message, and then sends the random access resource allocation message to the terminal.

Further, according to the foregoing primary base station, the time advance command TAC transmission message includes a first time at which the secondary base station receives the random access request message; and the seventh unit is further configured to determine, according to the first time, a second time for sending the random access response message.

權(quán)利要求

1
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