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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| 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 | ||||
| Wireless Communication | 28/06/2007 | PL 929 | NOKIA CORP | Yes | Basis Patent | ||||
| Wireless Communication | 03/01/2003 | PL 964 | NOKIA CORP | Yes | Basis Patent | ||||
Specification 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 a basic mode a base transceiver station reserves a first predetermined number of time slots for packet radio service and a second predetermined number of time slots for circuit-switched service on said predetermined channels, and that on the basis of a predetermined criterion, said base transceiver station allocates at least one additional time slot to one of the packet radio service and circuit switched service, said predetermined criterion comprising any one of the following:a new packet radio connection is set up; an existing packet radio connection is terminated; a new packet radio session is set up; an existing packet radio session is terminated; a handover concerning a certain mobile station is performed; and a certain threshold value is reached in a traffic measurement performed at said base transceiver station.', 'in a basic mode a base transceiver station reserves a first predetermined number of time slots for packet radio service and a second predetermined number of time slots for circuit-switched service on said predetermined channels, and that', 'on the basis of a predetermined criterion, said base transceiver station allocates at least one additional time slot to one of the packet radio service and circuit switched service, said predetermined criterion comprising any one of the following:a new packet radio connection is set up; an existing packet radio connection is terminated; a new packet radio session is set up; an existing packet radio session is terminated; a handover concerning a certain mobile station is performed; and a certain threshold value is reached in a traffic measurement performed at said base transceiver station.', 'a new packet radio connection is set up; an existing packet radio connection is terminated;', 'a new packet radio session is set up; an existing packet radio session is terminated;', 'a handover concerning a certain mobile station is performed; and', 'a certain threshold value is reached in a traffic measurement performed at said base transceiver station.
2. A method according to claim 1, characterized in that said first predetermined number of time slots comprises all the data transmission time slots of at least one of said predetermined channels when circuit switched service does not require capacity, such that no time slot is reserved for circuit switched service on said one predetermined channel, and that at least one time slot is allocated to circuit switched service when said predetermined criterion is fulfilled.
3. A method according to claim 1, characterized in that said first predetermined number of time slots comprises a predetermined minimum number of time slots, and on the basis of said predetermined criterion, one time slot is first allocated to the 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 said minimum number of time slots is adjusted on the basis of traffic and/or economic factors.
5. A method according to claim 1, characterized in that said predetermined criterion further comprises a request received from a mobile station, the request requesting network capacity for one of packet radio service and circuit switched service.
6. A method according to claim 5, characterized in that said predetermined first number of time slots is zero, and a mobile station, in order to have access to packet radio service capacity, makes a request for said packet radio service capacity to a base transceiver station.
7. A method according to claim 1, characterized in that said predetermined criterion comprises threshold values obtained by traffic measuring occurring at one of said base transceiver stations and that, when the traffic of the service concerned increases to above a predetermined first threshold value at least one additional time slot is allocated to this service and, when the traffic of the service concerned drops to below a predetermined second threshold value, a corresponding number of time slots are deallocated from this service.
8. A method according to claim 7, characterized in that the serivce concerned is packet radio service and that additional time slots are allocated, when necessary, from multiple channels.
9. A method according to claim 7, characterized in that the determination of the threshold values is based on at least one of long-term measurement of traffic behavior, and an adjustment of at least one of the threshold values on the basis of the traffic measurement result over a specified time period
10. A method according to claim 1, characterized in that the method is applied in parallel to the FDMA bands in said TDMA system such that said FDMA bands are treated like said time slots
11. A method according to claim 1, characterized in that said predetermined first number of time slots is 0, and that a mobile station in order to have access to packet radio service capacity makes a request for said access to said base transceiver station
12. A time division multiple access (TDMA) mobile telecommunication system, which comprises a base station system (BSS), comprising base transceiver stations and base station controllers, and mobile stations, and in which two-way traffic between the base transceiver stations and the mobile stations takes place in time slots on predetermined channels, and in which mobile stations 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, said system comprises:means for causing, in the basic mode, the base station system (BSS) to reserve for packet radio service a predetermined first number of time slots, and for circuit switched service a predetermined second number of time slots, means, in the base station system (BSS), for monitoring the capacity required for each service, means for setting a predetermined criterion, said predetermined criterion comprising any one of the following:a new packet radio connection is set up; an existing packet radio connection is terminated; a new packet radio session is set up; an existing packet radio session is terminated; a handover concerning a certain mobile station is performed; and a certain threshold value is reached in a traffic measurement performed at said base transceiver station, and means for allocating to one of the packet radio service and circuit switched service, on the basis of said predetermined criterion, at least one additional time slot.', 'means for causing, in the basic mode, the base station system (BSS) to reserve for packet radio service a predetermined first number of time slots, and for circuit switched service a predetermined second number of time slots,', 'means, in the base station system (BSS), for monitoring the capacity required for each service,', 'means for setting a predetermined criterion, said predetermined criterion comprising any one of the following:a new packet radio connection is set up; an existing packet radio connection is terminated; a new packet radio session is set up; an existing packet radio session is terminated; a handover concerning a certain mobile station is performed; and a certain threshold value is reached in a traffic measurement performed at said base transceiver station, and', 'a new packet radio connection is set up;', 'an existing packet radio connection is terminated;', 'a new packet radio session is set up;', 'an existing packet radio session is terminated;', 'a handover concerning a certain mobile station is performed; and', 'a certain threshold value is reached in a traffic measurement performed at said base transceiver station, and', 'means for allocating to one of the packet radio service and circuit switched service, on the basis of said predetermined criterion, at least one additional time slot.13. A mobile telecommunication system according to claim 12, characterized in that the base station system comprises means for transmiting to at least one of said mobile stations information regarding the division of radio capacity between packet radio service and circuit switched service.14. A mobile telecommunication system according to claim 12, characterized in that said causing means comprises:means for setting said first predetermined number of time slots to all the data transmission time slots of at least one of said predetermined channels when circuit switched service does not require capacity, such that no time slot is reserved for circuit switched service on said one predetermined channel; and means for allocating at least one time slot to circuit switched service when said predetermined criterion is fulfilled.', 'means for setting said first predetermined number of time slots to all the data transmission time slots of at least one of said predetermined channels when circuit switched service does not require capacity, such that no time slot is reserved for circuit switched service on said one predetermined channel; and', 'means for allocating at least one time slot to circuit switched service when said predetermined criterion is fulfilled.15. A mobile telecommunication system according to claim 12, characterized in that said causing means comprises:means for setting said first predetermined number of time slots to a predetermined minimum number of time slots; and means, on the basis of said predetermined criterion, for first allocating one time slot to the packet radio service and during the assignment of the subsequent packet allocating the necessary number of additional time slots.', 'means for setting said first predetermined number of time slots to a predetermined minimum number of time slots; and', 'means, on the basis of said predetermined criterion, for first allocating one time slot to the packet radio service and during the assignment of the subsequent packet allocating the necessary number of additional time slots.16. A mobile telecommunication system according to claim 15, characterized in that said causing means comprises means for adjusting said minimum number of time slots on the basis of traffic and/or economic factors.17. A mobile telecommunication system according to claim 12, characterized in that said predetermined criterion set by said means for setting a predetermined criterion further comprise a request is received from a mobile station requesting network capacity for one of packet radio service and circuit switched service.18. A mobile telecommunication system according to claim 12, characterized in that said predetermined criterion set by said means for setting a predetermined criterion comprises threshold values obtained by traffic measuring occurring at one of said base transceiver stations, and further comprising:means, when the traffic of the service concerned increases to above a predetermined first threshold value, for allocating at least one additional time slot to this service; and means, when the traffic of the service concerned drops to below a predetermined second threshold value, for deallocating a corresponding number of time slots from this service.', 'means, when the traffic of the service concerned increases to above a predetermined first threshold value, for allocating at least one additional time slot to this service; and', 'means, when the traffic of the service concerned drops to below a predetermined second threshold value, for deallocating a corresponding number of time slots from this service.19. A mobile telecommunication system according to claim 18, characterized in that the service concerned is packet radio service and further comprising means for allocating additional time slots, when necessary, from multiple channels.
20. A mobile telecommunication system according to claim 12, characterized in that said means for allocating comprises means for applying said mobile telecommunication system in a TDMA system and in parallel to the FDMA bands in said TDMA system such that said FDMA bands are treated like said time slots.']
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
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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.