The present invention provides a method, an apparatus, and a system for paging a terminal. The method includes: obtaining, by a core network element, mobility information or service information of a terminal; determining, by the core network element, a paging range of the terminal according to the mobility information of the terminal and correspondence between the mobility information and the paging range, or determining, by the core network element, a paging range of the terminal according to the service information of the terminal and correspondence between the service information and the paging range, where the paging range includes: a single cell, a single base station, multiple cells, multiple base stations, or a location area; and paging, by the core network element, the terminal according to the paging range of the terminal. The present invention can reduce paging processing of an irrelevant cell or base station, and save network resources. The present invention is applicable to paging in a multi-layer radio network and is also applicable to paging in a single-layer radio network.

A transfer node (310) receives downlink data addressed to a mobile station (100). A paging area control apparatus (300) determines a paging area of the mobile station (100) based on an attribute of the downlink data. A paging apparatus (200) sends a paging signal into the paging area determined by the paging area control apparatus (300), in order to page the mobile station (100). As a result, a technology for contributing to determining a proper paging area corresponding to downlink traffic is provided.

To provide appropriate communication quality for a mobile station that is permitted to connect to a femto base station regardless of the place at which the femto base station is installed and the place at which the mobile station is used while reducing the transmission power of the femto base station as much as possible, a femto base station 4 measures the reception quality (e.g., received power or reception SIR) by receiving a common pilot signal from a macro base station 3, and sets the transmission power Ptx of a pilot signal to be transmitted by the femto base station itself based on the received power. Further, the femto base station 4 transmits a common pilot signal with a transmission power Ptx and communicates with a plurality of mobile stations 7-2 to 7-4 within a femtocell 6. Furthermore, the femto base station 4 receives a measurement result of the reception quality level of a common pilot signal transmitted from the femto base station 4 from the mobile stations 7-2 to 7-4, and adjusts the transmission power Ptx of a common pilot signal so that the lowest level among a plurality of reception quality levels gets closer to a predetermined target level.

For controlling the traffic balance between the paging upon incoming calls and the location registration according to the traffic at the time of transmitting and receiving packets, to realize efficient battery conservation in a mobile station, the present invention provides a system constituted by a plurality of base stations, a plurality of mobile stations, and a management server for location information of each mobile station and the like, in which a set of respective cells formed by the base stations constitutes a first area group, whereas each mobile station shifts to a mode periodically receiving signals from the base stations if no signals are transmitted and received for a predetermined period. Each base station forms second to n-th area groups (n ≥ 2), each having an area smaller than that of the first area, to be included in the first area group used when the mobile stations are in idle state. Each mobile station selects the area group to register according to the period in which no packet is received and transmitted in the above-mentioned mode, and registers its location while specifying an area within this area group with respect to the server.

A mobile terminal calling apparatus for calling a mobile terminal existing in a location area constituted by a plurality of cells to corresponding to a plurality of wireless base stations comprises a determination unit and a control unit. When there is a calling request for the mobile terminal, the determination unit determines the kind of the calling request. According to the kind of the calling request determined by the determination unit, the control unit decides a sequence of calling for the plurality of cells constituting the location area.

In a mobile communication system having plural cells for presenting plural types of communication service to plural mobile stations, information of allowance of delay of call connection is attached to a call to the mobile station, and when delay of call connection is not allowed as seen from this information of allowance, the mobile station is paged simultaneously through all cells in the location registration area, and when delay of call connection is allowed, the mobile station is paged sequentially in the unit of certain cells in the location registration area. Accordingly, the control traffic required for location registration and paging can be decreased.

In a mobile radio telephone network a communication control system includes a searching arrangement (25, 33) for searching one (15') of radio communication devices of the network. The communicating arrangement (22, 25, 32) sends a call signal to a specific one of the radio communication devices by means of a selecting arrangement (21, 25, 31). The specific communication device is selected with reference to a memory (27) for memorizing, in correspondence to the radio telephone sets (11'), location information indicative of the radio communication devices assigned to the zones in which the radio telephone sets are present at a time. The searching arrangement preferably updates the memory to make the information indicate the searched communication device instead of the specific communication device.