Patent US4369385A successfully refreshed from Google Patents.
Patent EP0673177A2 successfully refreshed from Google Patents.
EP0673177A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Mobile telecommunications system using distributed miniature zones
Assignee: Oki Electric Industry Co Ltd
•
Filing: 1989-05-30
•
Granted: —
•
Expires: 2009-05-30
Abstract
Abstract A mobile telecommunications system has multiple base stations (10) each defining a miniature service zone (20) and capable of communicating with mobile stations (16) present in the service zone over a radio link. Geographically associated ones of the base stations (10) are spaced apart from each other by an area in which the mobile stations (16) are not responsive to electromagnetic waves (18) on the radio links, whereby the base stations (10) are allowed to share the same frequency for the electromagnetic waves (18). The base stations (10) are accommodated in an on-road vehicle telecommunications network (22) which switches communications to the base stations (10). <IMAGE>
Inventors
- 👤 Yasuhiro C/O Oki Electric Ind. Co. Ltd. Ishii
- 👤 Tetsuji C/O Oki Electric Ind. Co. Ltd. Isogai
- 👤 Tatsuhiko C/O Oki Electric Ind. Co. Ltd. Okazaki
- 👤 Fumikazu C/O Oki Electric Ind. Co. Ltd. Sato
- 👤 Hiroto C/O Oki Electric Ind. Co. Ltd. Yoneyama
- 👤 Yukio C/O Oki Electric Ind. Co. Ltd. Inotsume
- 👤 Toshiyuki C/O Oki Electric Ind. Co. Ltd. Kodama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 18:18
CPC Classifications
H; H04; H04W; H04W60/00; H04W16/00; H04W16/02; H04W16/12; H04W16/24; H04W16/32; H04W60/04; H04W8/00; H04W8/02; H04W8/04; H04W8/06; H04W8/08; H04W8/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
511 words
A mobile telecommunications system comprising: a mobile station (16); a plurality of base stations (10) each communicable with sold 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 is substantially not responsive to an electromagnetic wave on the radio link, and being allowed to share a single frequency of the electromagnetic wave; and a communication network (22) interconneted to 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), wherein said mobile station (16) is registered in any of said plurality of switching stations (30, 32, 34) in association with an identification code which designates said mobile station (16), any one of said plurality of switching stations (30,32, 34) receives the identification code from said mobile station (16), adds information associated with a position of said mobile station to said identification code, and reports position information of said mobile station to said switching station where said mobile station is registered, and said switching station where said mobile station is registered stores the position information in association with the identification code representative of the reported position of said mobile station (16), and updates the stored position information in accordance with the position of said mobile station (16) detected and reported, CHARACTERIZED IN THAT associated ones of gold plurality of base stations (10) with respect to an area form a group and are interconnected to 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 to which said base station having detected said mobile station is interconnected transfers first position information (64) representative of a position of said mobile station and second position information (64a) indicative of whether or not said mobile station is located at on 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), 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), and, if the second position information (64a) shows that said mobile station (16) is not located at the outgoing end of the area, then 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, then 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 2
Dependent Claim
183 words
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) , and 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 informtion is destined.
Claim 3
Dependent Claim
314 words
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) to 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 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 4
Dependent Claim
154 words
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 5
Dependent Claim
264 words
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 nework (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 (16) is registered constantly updating the stored position data in response to the position of said mobile station (16) being detected and reported.
Claim 6
Dependent Claim
88 words
A system in accordance with claim 5, 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 7
Dependent Claim
202 words
A system in accordance with claim 5, 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 8
Dependent Claim
287 words
A system in accordance with claim 5, 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 9
Dependent Claim
148 words
A system in accordance with claim 5, 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 10
Dependent Claim
34 words
A system in accordance with claim 5, 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.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.