| 摘要 |
PURPOSE:To reduce the power consumption of a portable mobile station and to enhance the utilizing efficiency of an incoming control channel by grouping portable mobile stations, informing incoming information for each group, not grouping on-vehicle mobile stations and informing the incoming information through all incoming slots. CONSTITUTION:When an incoming signal reaches a base station, a buffer selection section 1 selects buffers 5(1-n) allocated to each incoming slot to store the incoming information. In the case of selecting a buffer, type information for grouping/non-grouping for a mobile station obtained by a mobile station kind group analysis section 2 and information of a group for which a mobile station belongs in the case of the grouped mobile station are utilized. The mobile station classification and group analysis section 2 reads the classification/ group information of the mobile station stored in a home memory station to acquire the classification/group information of the mobile station. Then an incoming signal stored in the buffer 5 is given in an incoming slot corresponding to each buffer by a multiplex circuit 3 and sent from the antenna 6 by a transmitter 4. Thus, the low power consumption of the portable equipment is attained and the utilizing efficiency of the control channel is improved.
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