Flexible sharing of measurement gaps

1. A method comprising:

a) generating measurement gaps in a data transfer between a wireless terminal device and a wireless access network; and

b) signaling a sharing indicator from said wireless access network to said wireless terminal device; and

c) using said sharing indicator at said wireless terminal device to control allocation ratios of said measurement gaps to different radio access technologies, wherein said allocation ratios are selectable within a predetermined range; and

d) using said sharing indicator to indicate how many measurement gaps out of a predetermined number of consecutive measurement gaps are allocated to an individual radio access technology.

2. The method according to claim 1 , further comprising

signaling said sharing indicator as a part of a measurement control signaling dedicated to said wireless terminal device.

3. The method according to claim 1 , wherein said sharing indicator defines a ratio of uniform measurement gaps to be used for an individual radio access technology.

4. The method according to claim 1 , further comprising selecting said sharing indicator in dependence on at least one of a load sharing parameter, a service or data throughput to said wireless terminal device, a type of data transmitted to said wireless terminal device, and a priority parameter allocated to individual radio access technologies.

5. The method according to claim 1 , wherein said sharing indicator is adapted to indicate allocation ratios for more than one radio access technology.

6. The method according to claim 1 , further comprising using said sharing indicator to indicate a priority of at least one radio access technology during a predetermined time period including a plurality of said measurement gaps.

7. The method according to claim 6 , wherein said predetermined time period corresponds to a measurement period of said wireless terminal device.

8. A computer program product comprising a non-transitory computer-readable medium storing code means for generating the steps of method claim 1 when run on a computer device.

9. An apparatus comprising:

a) transmission control means for generating measurement gaps in a downlink data transfer to a wireless terminal device; and

b) signaling means for signaling a sharing indicator to said wireless terminal device, said sharing indicator indicating allocation ratios of said measurement gaps to different radio access technologies; and

c) setting means for setting said allocation ratios within a predetermined range, wherein said setting means is adapted to set said sharing indicator so as to indicate how many measurement gaps out of a predetermined number of consecutive measurement gaps are allocated to an individual radio access technology.

10. The apparatus according to claim 9 , wherein said signaling means is adapted to signal said sharing indicator as a part of a measurement control signaling dedicated to said wireless terminal device.

11. The apparatus according to claim 9 , wherein said sharing indicator defines a ratio of uniform measurement gaps to be used for an individual radio access technology.

12. The apparatus according to claim 9 , wherein said signaling means is configured to select said sharing indicator in dependence on at least one of a load sharing parameter, a service or data throughput to said wireless terminal device, a type of data transmitted to said wireless terminal device, and a priority parameter allocated to individual radio access technologies.

13. The apparatus according to claim 9 , wherein setting means is adapted to set said sharing indicator so as to indicate allocation ratios for more than one radio access technology.

14. The apparatus according to claim 9 , wherein said setting means is adapted to set said sharing indicator so as to indicate a priority of at least one radio access technology during a predetermined time period including a plurality of said measurement gaps.

15. The apparatus according to claim 14 , wherein said predetermined time period corresponds to a measurement period of said wireless terminal device.

16. A system for signaling control information, said system comprising at least one apparatus according to claim 9 .

17. An apparatus comprising:

a) receiving control means for controlling wireless reception in a cellular system in a manner so that during measurement gaps reception is temporarily switched to a non-serving cell which does not serve said apparatus; and

b) allocation control means for using a sharing indicator input to said apparatus to control allocation ratios of said measurement gaps to different radio access technologies of non-serving cells wherein said allocation ratios are set-within a predetermined range, and wherein said sharing indicator is set so as to indicate how many measurement gaps out of a predetermined number of consecutive measurement gaps are allocated to an individual radio access technology.

18. The apparatus according to claim 17 , wherein said allocation control means is adapted to receive said sharing indicator as a part of a measurement control signaling dedicated to said apparatus.

19. The apparatus according to claim 17 , wherein said sharing indicator defines a ratio of uniform measurement gaps to be used for an individual radio access technology.

20. The apparatus according to claim 17 , wherein said sharing indicator indicates a priority of at least one radio access technology during a predetermined time period including a plurality of said measurement gaps.

21. The apparatus according to claim 20 , wherein said predetermined time period corresponds to a measurement period used in said apparatus.

22. A system for signaling control information, said system comprising at least one apparatus according to claim 17 .

23. The apparatus according to claim 17 , wherein said sharing indicator is set so as to indicate allocation ratios for more than one radio access technology.