Abstract
The invention relates to a method aiming at dynamic division of the radio capacity in a TDMA system dynamically between packet radio service and circuit switched service. According to the invention, some basic number of time slots are reserved for packet radio service and the rest are reserved for circuit switched service. When the traffic requirement of packet radio service increases, information regarding this is obtained by means of a request from a mobile station or through traffic measurement at the base transceiver station. This information is used as a criterion in allocating more time slots to packet radio service.
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| Not Available | 02/04/2000 | ISLD-200007-001 | NOKIA CORP | No | Family Member | ||||
| Not Available | 02/04/2000 | ISLD-200007-001 | NOKIA CORP | Yes | Basis Patent | ||||
Specification Information
Specification Information
Technologies
Family Information
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Product
Use Cases
Wireless communication
Services
Claim
1. A method for dynamic division of radio capacity between packet radio service and circuit switched service in a TDMA system in which two-way traffic between base transceiver stations and mobile stations takes place in time slots on predetermined channels, characterized in that - in the basic mode a first predetermined number of time slots are reserved for packet radio service and a second predetermined number of slots are reserved for circuit-switched service, and that - on the basis of a predetermined criterion, one or more additional free time slot/slots is/are allocated to packet radio service and/or circuit switched service, a corresponding number of time slots being deallocated from the other service.
2. A method according to Claim 1, characterized in that the said first number of time slots comprises all time slots of a channel when circuit switched service does not require capacity, no time slot being reserved for circuit switched service, but one or multiple free time slot/slots islare allocated to circuit switched service when a predetermined criterion is fulfilled.
3. A method according to Claim 1, characterized in that the said first number of time slots comprises a predetermined minimum number of time slots, in which case, on the basis of the said criterion, one free time slot is first allocated to packet radio service and during the assignment of the subsequent packet the necessary number of additional time slots are allocated.
4. A method according to Claim 3, characterized in that the said minimum number is adjustable, in which case the number is adjusted on the basis of traffic and/or factors of traffic economy.
5. A method according to any of the above claims, characterized in that the said predetermined criterion is a request received from a mobile station, the request requesting network capacity for packet radio service or for circuit switched service.1 " 3
6. A method according to Claim 5, characterized in that the said predetermined first number of time slots is 0 (zero), in which case a mobile station, in order to have access to packet radio service capacity, makes a request for it to the base transceiver station.
7. A method according to Claim 1, characterized in that the said predetermined criterion is a threshold value obtained by traffic measuring occurring at the base transceiver station and that, when the traffic of the service concerned increases to above the predetermined first threshold value, one or more additional time slot/slots is/are allocated to this service and, when the traffic of the service concerned drops to below the predetermined second threshold, a corresponding number of time slots are deallocated from this service.
8. A method according to Claim 7, characterized in that the service concerned is packet radio service and that additional time slots are allocated, when necessary, from multiple channels.
9. A method according to Claim 7 or 8, characterized in that the determination of the threshold values is based on long-term measurement of the behavior of the traffic and/or that the threshold values are adjusted on the basis of the traffic measurement result over a specified time period
10. A method according to any of the above claims, characterized in that the method is applied in parallel also to FIDIVIA bands
11. A time division multiple access (TDMA) mobile system which comprises a base station system (BSS) comprising base transceiver stations and base station controllers, as well as mobile stations, and in which two-way traffic between the base transceiver stations and mobile stations takes place in time 14 slots on pre-determined channels and in which mobile system there is packet radio service and circuit switched service, characterized in that, for dynamic division of radio capacity between packet radio service and circuit switched service, - in the basic mode the base station system (BSS) reserves for packet radio service a predetermined first number of time slots and for circuit switched system a predetermined second number of time slots, - the base station system monitors the capacity required for each service, and - allocates to packet radio service and/or circuit switched service, on the basis of a predetermined criterion, one or more additional free time slot/slots, dealiocating a corresponding number of time slots from the other service
12. A mobile system according to Claim 11, characterized in that the base station system transmits to a mobile station information regarding the division of radio capacity between packet radio service and circuit switched service. -13. A radio system in which channels between a base station and a mobile unit are utilised in plural modes, wherein the allocation of channels for utilisation in respective ones of the modes is dynamic such that channels allocated for use in a first of the modes are reallocatable for use in a second of the modes
14. A method for allocating the mode of usage of channels in a radio system in which channels between a base station and a mobile unit are utilised in plural modes, the allocation of channels for utilisation in respective ones of the modes being dynamic such that channels allocated for use in a first of the modes are reallocatable for use in a second of the modes
15. A radio system substantially as hereinbefore described with reference to the drawing
16. A method for allocating the mode of usage of channels in a radio system substantially as hereinbefore described with reference to the drawing.']
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SUMMARY
ClaimChart-GB2296844A-STO
Patent number:GB2296844A
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.