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A method for defining measurement gaps and a wireless telecommunications system comprising at least one base station and at least one wireless terminal. In the data transfer between these two, measurement gaps are generated with one of the following measurement gap generation methods: puncturing the

A method for defining measurement gaps and a wireless telecommunications system comprising at least one base station and at least one wireless terminal. In the data transfer between these two, measurement gaps are generated with one of the following measurement gap generation methods: puncturing the data being transmitted, halving the spreading factor, or buffering the data being transmitted onto higher protocol layers. In the method, measurement pattern parameters that set the locations of the gaps used for measurements in the time-slot frames and determine the measurement gap generation method are defined for the terminal and transmitted to the terminal through the base station. A uniform measurement gap is defined for the terminal, which comprises time-slots from two different time-slot frames so that the gaps in different time-slot frames are generated with a different measurement gap generation method.

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What is claimed is: 1. A method for defining measurement gaps in a wireless telecommunications system comprising at least one base station and at least one wireless terminal, wherein gaps in a sequence of data transmission slots may have inadequate duration for a desired measurement of pattern para

What is claimed is: 1. A method for defining measurement gaps in a wireless telecommunications system comprising at least one base station and at least one wireless terminal, wherein gaps in a sequence of data transmission slots may have inadequate duration for a desired measurement of pattern parameters, the measurement gaps in a data transfer between the base station and the wireless terminal being generated by the method comprising the steps of: defining measurement pattern parameters which determine a generation method of a measurement gap for the terminal, and transmitting the measurement pattern parameters through the base station to the terminal, wherein a uniform measurement gap is defined for the terminal comprising measurement gaps formed by generating a first measurement gap composed of consecutive time-slots in the back end of a first of two consecutive time-slot frames, such that the last time-slot of said first measurement gap is the last time-slot of said first time-slot frame, and by generating a second measurement gap composed of consecutive time-slots in the front end of the second of the two consecutive time-slot frames, such that the first time-slot of said second measurement gap is the first time-slot of said second time-slot frame, so that the measurement gaps in the first and the second time-slot frames constitute the uniform measurement gap, and wherein the first measurement gap is generated by a first measurement gap generation method, and the second measurement gap is generated by a second measurement gap generation method that is different from the first measurement gap generation method. 2. A method as claimed in claim 1, wherein the measurement gap generation method comprises puncturing data being transmitted, halving a spreading factor, or buffering data being transmitted onto higher protocol layers. 3. A method as claimed in claim 2, wherein the step of halving the spreading factor is only used in one time-slot frame of the uniform measurement gap. 4. A method as claimed in claim 1, further comprising the step of using the method in a compressed mode of an FDD-type wideband code division multiple access system. 5. A method as claimed in claim 4, further comprising the steps of: defining a length of the measurement gap to be 10 time-slots and performing measurements directed to another telecommunications system, such as the GSM system, during the measurement gap. 6. A method as claimed in claim 1, further comprising the step of: defining a length of each of the first and the second measurement gaps and the different measurement gap generation methods for gaps in time-slot frames by software in a fixed network on the basis of a configured algorithm or lookup table. 7. A wireless telecommunications system comprising at least one base station and at least one wireless terminal for transfer of data between the base station and the wireless terminal, wherein gaps in a sequence of data transmission slots may have inadequate duration for a desired measurement of pattern parameters, wherein the system provides for a mode of the data transfer having measurement gaps generated by a process wherein the telecommunications system is operative: to define measurement pattern parameters determining a measurement gap for the terminal, and to send the measurement pattern parameters through the base station to the terminal, and wherein the telecommunications system is arranged to define for the terminal a uniform measurement gap comprising first and second measurement gaps each being formed by consecutive time-slots, and being located respectively in first and second consecutive timeslot frames, the first measurement gap being formed at the back end of the first time-slot frame such that the last timeslot of said first measurement gap is the last time-slot of said first time-slot frame, and the second measurement gap being formed at the front end of the second timeslot frame, such that the first time-slot of said second measurement gap is the first time-slot of said second time-slot frame, to constitute the uniform measurement gap, wherein the first measurement gap is generated by a first measurement gap generation method, and the second measurement gap is generated by a second measurement gap generation method that is different from the first measurement gap generation method. 8. A telecommunications system as claimed in claim 7, wherein the measurement gaps are arranged to be generated by the measurement gap generation method comprising puncturing data being transmitted, halving a spreading factor, or buffering data being transmitted onto higher protocol layers. 9. A telecommunications system as claimed in claim 8, wherein the measurement gap generation method comprising halving the spreading factor is only used in one time-slot frame of the uniform measurement gap. 10. A telecommunications system as claimed in claim 7, wherein the telecommunications system is an FDD-type wideband code division multiple access system having a compressed mode during which a definition of the measurement gap generation method is arranged to be performed. 11. A telecommunications system as claimed in claim 10, wherein a length of the measurement gap is arranged to be 10 time-slots and the terminal is arranged to perform measurements directed to another telecommunications system, such as the GSM system, during the measurement gap. 12. A telecommunications system as claimed in claim 7, wherein a means for defining a length of each of the measurement gaps and the different generation methods for the measurement gaps in the time-slot frames comprise an algorithm or lookup table configured by software. 13. A terminal for a wireless telecommunications system, comprising: a receiver for receiving measurement pattern parameters defined by the telecommunications system; and processing means for arranging gaps in successive time-slot frames according to the measurement pattern parameters, wherein the processing means are arranged to generate a uniform measurement gap comprising first and second measurement gaps that are generated by consecutive time-slots respectively in first and second time-slot frames, the first measurement gap being formed at the back end of the first time-slot frame such that the last time-slot of said first measurement gap is the last time-slot of said first time-slot frame, and the second measurement gap being formed at the front end of the second time-slot frame, such that the first time-slot of said second measurement gap is the first time-slot of said second time-slot frame, to constitute the uniform measurement gap, wherein the first measurement gap is generated by a first measurement gap generation method, and the second measurement gap is generated by a second measurement gap generation method that is different from the first measurement gap generation method. 14. A terminal as claimed in claim 13, wherein the measurement gaps are arranged to be generated by the measurement gap generation method comprising puncturing data being transmitted, halving a spreading factor, or buffering the data being transmitted onto higher protocol layers. 15. A terminal as claimed in claim 14, wherein the processing means are arranged to set the measurement gap generalization method comprising halving of the spreading factor to be used in only one time-slot frame of the measurement gap. 16. A terminal as claimed in claim 13, wherein the terminal is a terminal in FDD-type wideband code division multiple access system having a compressed mode during which the measurement gaps are generated. 17. A base station serving for data transfer in a wireless telecommunications system, the base station being operative with means for defining measurement pattern parameters for terminals of the system, wherein gaps in a sequence of data transmission slots may have inadequate duration for a desired measurement of pattern parameters, the measurement pattern parameters being used by the base station for selecting a manner of generating a measurement gap in the data transfer, and the base station comprising a transmitter for transmitting the measurement patterns to the terminals, wherein the means for defining measurement pattern parameters are arranged to define for an individual one of the terminals a uniform measurement gap comprising first and second measurement gaps that are formed by consecutive time-slots respectively in first and second time-slot frames, the first measurement gap being formed at the back end of the first time-slot frame such that the last time slot of said first measurement gap is the last time-slot of said first time-slot frame, and the second measurement gap being formed at the front end of the second time-slot frame, such that the first time-slot of said second measurement gap is the first time-slot of said second time-slot frame, to constitute the uniform measurement gap, wherein the first measurement gap is generated by a first measurement gap generation method, and the second measurement gap is generated by a second measurement gap generation method that is different from the first measurement gap generation method. 18. A base station as claimed in claim 17, wherein the means for defining measurement pattern parameters are arranged to define a measurement gap generation method comprising puncturing data being transmitted, halving a spreading factor, or buffering the data being transmitted onto higher protocol layers. 19. A base station as claimed in claim 17, wherein the means for defining measurement pattern parameters comprises an algorithm or lookup table configured by software.