Mobile telecommunications system using distributed miniature zones

Claim 2

A mobile telecommunications system comprising: a plurality of base stations (10) each being communicatable with a mobile station (16) over a radio link; and a communication network (22) accommodating said plurality of base stations (10) for switching communications to said plurality of base stations (10) ; CHARACTEIZED IN THAT geographically adjoining ones of said plurality of base stations (10) are spaced apart from each other by an area in which the mobile station is substantially not responsive to an electromagnetic wave (18) on the radio link; whereby said plurality of base stations (10) are allowed to share a single frequency as the electromagnetic wave (18).

Claim 3

A system in accordance with claim 1, CHARACTERIIZED IN THAT on receiving information to be transmitted to the mobile station (16) said communication network (22) once stores said information, releases connection with a terminal which has sent said information, and transmits said information data to any one of said base stations (10) ; on receiving information from the mobile station via said base station (10) said communication network (22) once stores said information and transmits said information to a terminal to which said information is destined.

Claim 4

A mobile telecommunications system comprising: a mobile station (16) ; and a plurality of land stations (10, 30, 32, 34) constituting a communication network (22) for communicating with said mobile station (16) ; CHARACTERIZED IN THAT said mobile station (16) is registered in any one of said plurality of land stations (10, 30, 32, 34) ; any one of said plurality of land stations (10, 30, 32, 34) detected said mobile station (16) reports a position of said mobile station (16) on one of said land station (10, 30, 32, 34) where said mobile station (16) ; said land station (10, 30, 32, 34) where said mobile station (16) is egistered stores a position of said reported mobile station (16) ; and said land station (10, 30, 32, 34) where said mobile station (16) is registered constantly updates a stored content in response to the position of said mobile station (16) being detected and reported.

Claim 5

A mobile telecommunications system comprising: a mobile station (16) ; and a plurality of land stations (10, 30, 32, 34) constituting a communication network (22) for communicating with said mobile station (16) ; CHARACTERIZED IN THAT said mobile station (16) is registered in any one of said plurality of land stations (10, 30, 32, 34) ; any one of said plurality of land stations (10, 30, 32, 34) detected said mobile station (16) reports a position of said mobile station (16) on one of said land station (10, 30, 32, 34) where said mobile station (16) ; said land station (10, 30, 32, 34) where said mobile station (16) is egistered stores a position of said reported mobile station (16) ; and said land station (10, 30, 32, 34) where said mobile station (16) is registered constantly updates a stored content in response to the position of said mobile station (16) being detected and reported.

Claim 6

A system in accordance with claim 3, CHARACTERIZED IN THAT said land stations (10, 30, 32, 34) comprise either one of base stations (10) each being communicatable with with said mobile station (16) over a radio channel and switching stations (30, 32, 34) each switching a communication to said base station (10) ; associated ones of said plurality of base stations (10) with respect to an area form a group and accommodated in one of said plurality of switching stations (30, 32, 34) ; said switching station (30, 32, 34) in which said base stations (10) forming a group are accommodated reports, when detected said mobile station (16) in the area for the first time through any one of said base stations (10) forming the group, a position of said detected mobile station (16) to said switching station (3, 32, 34) where said mobile station (16) is registered; and said switching station (30, 32, 34) where said mobile station (16) is registered stores data representative of the reported position of said mobile station (16).

Claim 7

A system in accordance with claim 3, CHARACTERIZED IN THAT each of said land stations (10, 30, 32, 34) comprises either one of a base station (10) each being communicatable with said mobile station (16) over a radio channel and a switching station (30, 32, 34) each switching a communication to said base station (16) ; said mobile station (16) stores history data at least including a position which said mobile station (16) has passed last while updating said history data and, in response to access from any one of said base stations (10), returns the stored position information to said base station (10) ; and said switching station (30, 32, 34) reports, when the position information returned from said mobile station (16) to said base station (10) undergoes a change, a position of said mobile station (16) to another one of said switching stations (30,32, 34) where said mobile station (16) is registered.

Claim 8

A mobile telecommunications system comprising: a plurality of base stations (10) each being communicatable with a mobile station (16) over a radio link; a communication network (22) accommodating said plurality of base stations (10) and for switching communications to said plurality of base stations (10) ; CHARACTERIZED IN THAT said mobile communication system comprises: a plurality of base stations (10) each being communicatable with said mobile station (16) over a radio link, said plurality of base stations (10) being spaced apart from each other by an area in which the mobile station (16) is substantially not responsive to an electromagnetic wave (18) on the radio link and being allowed to share a single frequency as the electromagnetic wave (18) ; and a communication network (22) accommodating said plurality of base stations (10) and constituted by a plurality of switching stations (30, 32, 34) for switching communications to said plurality of base stations (10) ; said movable station (16) being registered in any of said plurality of switching stations (30, 32, 34) ; any one of said plurality of switching stations (30, 32, 34) detected said mobile station (10) reporting a position of said mobile station (16) to said switching station (30, 32, 34) where said mobile station (16) is registered; said switching station (30, 32, 4) where said mobile station (16) is registered storing data representative of the reported position of said mobile station (16) ; said switching station (30, 32, 34) where said mobile station 916) is registered constantly updating the stored position data in response to the position of said mobile station (16) being detected and reported.

Claim 9

A mobile telecommunications system comprising: a plurality of base stations (10) each being communicatable with a mobile station (16) over a radio link; a communication network (22) accommodating said plurality of base stations (10) and for switching communications to said plurality of base stations (10) ; CHARACTERIZED IN THAT said mobile communication system comprises: a plurality of base stations (10) each being communicatable with said mobile station (16) over a radio link, said plurality of base stations (10) being spaced apart from each other by an area in which the mobile station (16) is substantially not responsive to an electromagnetic wave (18) on the radio link and being allowed to share a single frequency as the electromagnetic wave (18) ; and a communication network (22) accommodating said plurality of base stations (10) and constituted by a plurality of switching stations (30, 32, 34) for switching communications to said plurality of base stations (10) ; said movable station (16) being registered in any of said plurality of switching stations (30, 32, 34) ; any one of said plurality of switching stations (30, 32, 34) detected said mobile station (10) reporting a position of said mobile station (16) to said switching station (30, 32, 34) where said mobile station (16) is registered; said switching station (30, 32, 4) where said mobile station (16) is registered storing data representative of the reported position of said mobile station (16) ; said switching station (30, 32, 34) where said mobile station 916) is registered constantly updating the stored position data in response to the position of said mobile station (16) being detected and reported.

Claim 10

A system in accordance with claim 6, CHARACTERIZED IN THAT said plurality of base stations (10) are divided into paging groups each consisting of geographically associated ones of said base stations (10) ; whereby when an incoming call is to be terminated at said mobile station (16), a position of said mobile station (16) being stored in said switching station (30, 32, 34) where said mobile station (16) is registered is referenced, and one of said paging groups associated with the referenced position is accessed at the same time.

Claim 11

A system in accordance with claim 6, CHARACTERIZED IN THAT associated ones of said plurality of base stations (10) with respect to an area form a group and are accommodated in one of said switching stations (30) ; when any one of said base stations (10) detects said mobile station (16), said switching station (30) which accommodates said base station (10) detected said mobile station (16) transfers first position information (64) representative of a position of said mobile station (16) and second position information (64a) indicative of whether or not said mobile station (16) is located at an outgoing end of the area; said switching station (30, 32, 34) where the detected mobile station (16) is registered stores the first second position information (64, 64a) ; and when an incoming call is to be terminated at said mobile station (16), said switching station (30, 32, 34) where said mobile station (16) is registered references the first and second position information (64, 64a) being stored and, if the second position information (64a) shows that said mobile station (16) is not located at the outgoing end of the area, terminates the call at said mobile station (16) on the basis of the first position information (64).

Claim 12

A system in accordance with claim 6, CHARACTERIZED IN THAT associated ones of said plurality of base stations (10) with respect to an area form a group and are basically accommodated in one of said pluality of switching stations (30) ; said one switching station (30) covers, as to call termination control, a base station (10) located at an end of an area of another group whcih adjoins the area of said switching station (30) ; and when an incoming call is to be terminated at said mobile station (16), said one switching station (30) executes call termination control over said base stations (10) accommodated in said switching station (30) and said base station (10) located at the end of the area of another group.

Claim 13

A system in accordance with claim 6, CHARACTERIZED IN THAT associated ones of said plurality of base stations (10) with respect to an area form a group and are accommodated in one of said plurality of switching stations (30) ; when any one of said plurality of base stations (10) detects said mobile station (16), said switching station (30) in which said base station (16) detected said mobile station (16) is accommodated transfers first information (64) representative of a position of said mobile station (16) and second position information (64a) indicative of whether or not said mobile station (16) is located at an outgoing end of the area to said switching station (30, 32, 34) ) where said mobile station (16) is registered; said switching station (30, 32, 34) where said detected mobile station (16) is registered stores the first and second position information (64, 64a) ; when an incoming call is to be terminated at said mobile station (16), said switching station (30, 32, 34) where said mobile station (16) is registered references the first and second position information (64, 64a) and, if the second position information (64a) shows that said mobile station (16) is not located at the outgoing end of of the area, causes the call to be terminated at said mobile station (16) from said switching station (30) which is designated by the first position information (64) and, if the second position information (64a) shows that said mobile station (16) is located at the outgoing end of the area, causes the call to be terminated at said mobile station (16) via any of said switching stations (30) which is adjacent to said switching station (30) which is indicated by the first position information (64).

Claim 14

A system in accordance with claim 6, CHARACTERIZED IN THAT said mobile station (16) is registered in any one of said plurality of switching stations (30, 32, 34) in association with an identification code which designates said mobile station (16) ; said mobile station (16) generates the identification code and transmits said identification code to any one of said plurality of base stations (10) ; said switching station (30, 32, 34) received the identification code from said mobile station (16) via said base station (10) adds information associated with a position of said mobile station (16) to said identification code and transfers said information and identification code to said switching station (30, 32, 34) where said mobile station (16) is registered; and said switching station (30, 32, 34) where the mobile station (16) is registered stores the information associated with the transferred position in association with the identification code.

Claim 15

A system in accordance with claim 6, CHARACTERIZED IN THAT said system is adapted for road traffic of vehicles including automobiles.

Claim 16

A system in accordance with claim 6, CHARACTERIZED IN THAT said communication network is connectable to a center and/or another switching network which supplies information to the mobile station and/or supervises the mobile station.