Method, device and base station subsystem for holding trunking call under dynamic power consumption

Abstract

The present invention relates to a method, an apparatus and a base station subsystem for cluster call hold under dynamic power consumption, and the method includes the following steps: before preset time when a carrier frequency with a cluster call will be closed, a Base Station Controller (BSC) receives a notification message sent by a Base Transceiver Station (BTS); according to the notification message, forward frame detecting time is modified from scheduled time to temporary time; and during the preset time, if no talking is detected on the carrier frequency in sequential temporary time, the cluster call on the carrier frequency is released. In present invention, when the BSC receives the information that some carrier frequencies used currently need to be closed from the BTS, the BTS informs the BSC in the preset time before the carrier frequency is actually closed, and the BSC modifies the forward link detecting time of a Selection Distribution Unit (SDU) within it to release the cluster call on the carrier frequency by it self if there is no user talking. So that, when the carrier frequency is closed, the situation that a cluster call user on the closed carrier frequency drops call because the base station can not hand over between frequencies is avoided, and user satisfaction is improved.

Description

technical field [0001] The invention relates to the communication field, in particular to a method, a device and a base station subsystem for group call maintenance under dynamic power consumption in a CDMA system. Background technique [0002] With the maturity and development of CDMA (Code Division Multiple Access) trunking communication technology, it is necessary to face various application scenarios, such as how to keep users talking normally under the condition of dynamic power consumption so that No sense of dropped calls is an important subject to be studied. [0003] Dynamic power consumption technology means that the operator shuts down part of the working service carrier frequency in a specific period of time according to the actual usage of users in a certain area, such as turning off the second and third carrier frequencies of an idle site after 12 o'clock in the evening. frequency, and turn it back on at 6:00 the next morning to reduce operating costs. [000...

AI Technical Summary

Problems solved by technology

[0004] The autonomous switching technology of the traditional trunking group call is: the base station sends the SNCAM (PTT System Parameter and Neighbor Channel Assignment Message, neighbor channel assignment) message to the terminal, and the terminal performs autonomous switching according to the resource conditions of the neighboring cells carried in the SNCAM message , that is, whether to perform handover is determined by the terminal itself, and the base station cannot decide

[0005] Since the switching mechanism of the traditional trunking group call terminal is autonomous switching, under the condition of dynamic power consumption, the base station cannot instruct the terminal to perform cross-frequency switching like instructing the voice terminal, which causes the carrier frequency that needs to be turned off The problem of terminal call drop affects the use of users

Images