Method and arrangement for service-based indication and control of a service need
First Claim
1. A method for measuring the field strength of a signal received by a mobile station operating in a cellular network, said network providing advanced services, said advanced services requiring increased rates of data transmission, in which method the field strength of a signal received by a mobile station is measured and on the basis of the measured field strength, a field strength is calculated for obtaining a determination of availability of an advanced service, which is a service other than the service currently used by the mobile station.
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Accused Products
Abstract
The invention relates to a method and arrangement by means of which a mobile station (MS, 400) operating in a cellular network measures and indicates the field strength of a signal sent by a base station (BTS, 451). From the measured signal it is calculated a virtual field strength (Pvr) on the basis of which it is determined whether the desired service (speech, data, GPRS, HSCSD) can be used at that field strength.
31 Citations
23 Claims
- 1. A method for measuring the field strength of a signal received by a mobile station operating in a cellular network, said network providing advanced services, said advanced services requiring increased rates of data transmission, in which method the field strength of a signal received by a mobile station is measured and on the basis of the measured field strength, a field strength is calculated for obtaining a determination of availability of an advanced service, which is a service other than the service currently used by the mobile station.
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14. A mobile station in a cellular telephone system, arranged to operate in a cellular network, said network providing advanced services, said advanced services requiring increased rates of data transmission, wherein said mobile station has means for:
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sending and receiving signals, measuring the field strength of a signal, reading data from a memory means, and controlling the transmission power of a mobile station, further comprising;
means for calculating a value representing the received signal field strength, means for setting a minimum value for the field strength of a signal received by the mobile station based on said advanced service; and
means for calculating a field strength for determining the availability of said advanced service, as based on measured field strength, said advanced service being other than the service currently used by the mobile station. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A base station in a cellular radio system, arranged to operate in a cellular network, said network providing advanced services, said advanced services requiring increased rates of data transmission, said base station, having:
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means for providing a service;
means for forwarding, generating and sending messages to mobile stations, and means for storing various parameter data of a cellular network, further comprising means for communicating to mobile stations a service specific value needed in the calculation of the value representing the received signal field strength, controlling the transmission power on the basis of service specific values; and
providing a field strength for said advanced service, said advanced service being other than the service currently used by the mobile station.
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22. A cellular radio system, operating in a cellular network, said network arranged to provide advanced services, said advanced services requiring increased rates of data transmission, said cellular radio system having switching centers, base station controllers, base stations and mobile stations, said cellular radio system further arranged, such that
the base stations are provided with means for generating messages and sending them to mobile stations, and the mobile stations are equipped so as to operate on said advanced service level and receive said messages, wherein the cellular radio system comprises accessible information about field strength specific values allowed for said advanced services in the cellular network and said system is arranged so as to transmit said information from a base station to a mobile station for the calculation of a value representing the field strength of the received signal based on said advanced service, said advanced service being other than the service currently used by the mobile station.
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23. A method for measuring the field strength of a signal received by a mobile station operating in a cellular network, said network providing at least one advanced service for selection by the user of a mobile station, said at least one advanced service requiring increased rates of data transmission, in which method, the field strength of a signal received by a mobile station is measured and compared to a field strength value consistent with said increased rate of data transmission, wherein said measured field strength is adjusted in accordance with a predetermined factor on the basis of the said at least one advanced service selected by the user of the mobile station, said service selected being other than the service currently used by the mobile station.
Specification