Response to random access signal, random access method and mobile communication system

Abstract

This invention discloses a responding and accessing method for random access signals and a mobile communication system including the folowing steps: 1, preserving a terminal ID in the system as a kept terminal ID, 2, an evolution base station carries a related terminal ID in a randomly accessed responding signal based on the state of the terminal, 3, the station transmits the randomly accessed responding signal to the terminal by a signaling channel of a specific format physical layer / data link layer. This invention keeps a terminal ID only so as to save energy, when the base station dispatches the terminal or transmits data to the terminal, it can differentiate the terminal starting up the access and the one being dispatched and having communication by the distributed terminal ID or the kept ID.

Description

technical field

[0001] The present invention relates to a random access signal response method and a terminal (UE, User Equipment) random access method, in particular to a random access signal response, random access method and a mobile communication system. Background technique

[0002] As an important link in the wireless access process, the random access process can be used to support mobile station access call initiation, and can also be used for services such as paging response, short message and burst data.

[0003] In the third-generation mobile communication long-term evolution standard (LTE), the UE asynchronous random access method includes the following steps: the UE that initiates the access sends a random access signal to the evolved base station (eNB); the eNB receives the random access signal After receiving the signal, calculate the uplink synchronization information of the UE, and allocate uplink resources to the UE according to the information carried in th...

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