Zte Corporation

Yanye Chen

Yuanfang Yu

Xuemin Liu

Xiaoxia Hou

Chenguang Zhang

The present invention discloses a method for Late-Entry in CDMA or other trunking systems. The method includes the following steps: after a group call is established, the base station checks the load condition of the paging channel, and if the load on the paging channel is relatively light, then the base station sends paging message carrying channel resource, and the terminal directly establishes the corresponding channel and the call is accessed through the matching for group identifier address after it receives the paging message; otherwise, the base station sends the paging message not carrying channel resource, and sends the message carrying channel resource after it receives the response message from the terminal, and then the terminal establishes the corresponding channel based on the resource information in said message and the call is accessed. By employing the method of the present invention, the load on the paging channel is alleviated and the access speed of the terminal is guaranteed.

Method of paging and late-entry after establishing group call

The method of present invention is used for addressing a broadcast message in a trunking system, in which said trunking communication system includes a base station and mobile stations. This method includes the following steps: adding a new index of trunking broadcast time slots, with all the mobile stations that support boundless capacity group call service monitoring these trunking broadcast time slots; the base station transmitting the paging message of the boundless capacity group call in the trunking broadcast time slot; and using the group identification as the broadcast address, allowing addressing to the group identification and not a single mobile station. The method of present invention efficiently solves the problem of paging channel capacity limitations of the boundless capacity group call service supported by CDMA trunking telecommunication systems, and greatly shortens the time of group call connection.

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Shenzhen, China

Yanye Chen