The method and mobile station of the invention can select the proper time to initiate the subdistrict updating process to save the RACH signal channel resources.

本发明提出的方法及移动台，能够选择合适的时间发起小区更新过程，从而节约RACH信道资源。

youdao

Whereas traditional systems require the use of one or two dedicated channels per user every time there is a two-way communications, trunked systems automatically select the voice channel that a user may talk on every time he transmits.

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