EP0808073A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method and apparatus for mobile radio system selection
Assignee: Motorola Solutions UK Ltd
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Filing: 1997-05-02
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Granted: —
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Expires: 2017-05-02
Abstract
Abstract A method and apparatus enables selection a communication system when a user of a mobile unit is away from a home system to which it is registered. According to one novel aspect, the visited communication system broadcasts (402) a list of standardized type services including tariff information, which is used by the mobile unit to select a system. According to another novel aspect, the mobile initiates an outgoing call of a non-standardised type service by accessing (502) a candidate system and informing it of the location of the home network and desired service identifier. The candidate system obtains (504) the service information on this service from the home network, and then provides (546) a quotation for a required service. Also, a communication system according to the present invention minimises incoming call costs to the user wherein the home system polls (606) the communication systems within range of the mobile unit to select the best system to provide service.
Inventors
- 👤 Nicholas Whinnett
- 👤 William Robinson
- 👤 Jonathan Gibbs
- 👤 Anthony Van Den Heuvel
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 07:18
CPC Classifications
H; H04; H04W; H04W48/00; H04W48/18; H04M; H04M15/00; H04M15/80; H04M15/8044; H04M15/83; H04W4/00; H04W4/24; H04M2215/00; H04M2215/32; H04M2215/42; H04M2215/74; H04M2215/745; H04M2215/82
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
56 words
A method for selecting a communication system of a plurality of communication systems visited by a mobile unit, said method comprising the steps of: receiving at said mobile unit tariff information broadcast from said plurality of communication systems; comparing said tariff information; and selecting a communication system based upon said comparison of said broadcast tariff information.
Claim 2
Dependent Claim
33 words
A method as claimed in Claim 1, further including a step of broadcasting from said mobile unit requirements of said mobile unit on a common access channel of said plurality of communication systems.
Claim 3
Dependent Claim
36 words
A method as claimed in Claim 2, wherein said step of receiving at said mobile unit tariff information broadcast from said plurality of communication systems comprises receiving tariff information by way of a multiple access scheme.
Claim 4
Dependent Claim
20 words
A method as claimed in Claim 1, further including a step of polling local candidate systems during call set up.
Claim 5
Dependent Claim
28 words
A method as claimed in Claim 4, further including a step of providing to said plurality of communication systems of said mobile unit requirements of said mobile unit.
Claim 6
Dependent Claim
20 words
A method as claimed in Claim 1, further including a step of originating a call on said selected communication system.
Claim 7
Dependent Claim
19 words
A method for selecting a communications system comprising repeating the method steps of Claim 1 on a call-by-call basis.
Claim 8
Independent Claim
58 words
A method of originating an outgoing call by a communication system visited by a mobile unit associated with a home system, said method comprising the steps of: receiving a request from said mobile unit to access said communication system; obtaining a service definition of said mobile unit; and providing a quote for said service to said mobile unit.
Claim 9
Dependent Claim
24 words
A method as claimed in Claim 6, wherein said step of obtaining a service definition comprises obtaining a service definition from said home system.
Claim 10
Dependent Claim
24 words
A method as claimed in Claim 6, wherein said step of obtaining a service definition comprises obtaining a service definition from said mobile unit.
Claim 11
Dependent Claim
24 words
A method as claimed in Claim 8 or 9, further including a step of receiving an origination request for service from said mobile unit.
Claim 12
Dependent Claim
20 words
A method as claimed in Claim 7, further including a step of establishing a call on said selected communication system.
Claim 13
Dependent Claim
19 words
A method of orignating an outgoing call comprising repeating the methods steps of Claim 8 on a call-by-call basis.
Claim 14
Independent Claim
82 words
A method of transferring an incoming call made to a mobile unit associated with a home communication system to said mobile unit located in a visited communication system, said method comprising the steps of: receiving an incoming call to said mobile unit at said home system; polling communication systems accessible to said mobile unit and providing a service description to determine offered tariffs; selecting a communication system; and instructing said mobile unit to receive said incoming call on said selected communication system.
Claim 15
Dependent Claim
24 words
A method of transferring an incoming call made to a mobile unit comprising repeating the method steps of Claim 14 on a call-by-call basis.
Claim 16
Dependent Claim
62 words
A mobile unit adapted to select a communication system of a plurality of communication systems available to provide service to said mobile unit, said mobile unit comprising: a receiver for receiving tariff information broadcast from said plurality of communication systems; and a control circuit for comparing said tariff information and selecting a communication system based upon said comparison of said tariff information.
Claim 17
Dependent Claim
35 words
A mobile unit adapted to select a communication system according to Claim 16, wherein the receiver receives Tariff information the control circuit compares the tariff information and selects the communication system on a call-by-call basis.
Claim 18
Dependent Claim
83 words
A communication system adapted to connect an outgoing call originated by a mobile unit associated with a home communication system, said communication system comprising: a base station for receiving a request from said mobile unit to access said communication system; a visitor service creation platform adapted to obtain a service definition from said home communication system or from said mobile unit; and a mobile switching center coupled to said visitor service creation platform for providing a quote for service to said mobile unit.
Claim 19
Dependent Claim
32 words
A communications system according to Claim 18, wherein the request is received from the mobile unit, the service definition is obtained and the quote for service is provided on a call-by-call basis.
Claim 20
Dependent Claim
89 words
A communication system adapted to transfer an incoming call made to a mobile unit associated with a home communication system to said mobile unit located in a visited communication system, said communication system comprising: a mobile switching center for receiving a request for a call; a visitor service creation platform coupled to said mobile switching center and adapted to obtain tariff information from other communication systems; and a base station coupled to said mobile switching center for providing instructions to said mobile unit to access a selected communication system.
Claim 21
Dependent Claim
30 words
A communications system according to Claim 20, wherein receiving the request for the call, obtaining tariff information and accessing of a selected communication system are provided on a call-by-call basis.
References Cited (Backward Citations)
No citation records indexed.
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