Radio network nodes, wireless device, and methods performed therein for communicating in a wireless communication network

1. A method performed by a wireless device for handling communication in a wireless communication network, the method comprising:

identifying a set of reference signals to use for performing mobility measurements at the wireless device, based on configuration information and a communication service type or class in use or to be used by the wireless device, wherein the configuration information associates different communication service classes or types with corresponding sets of reference signals used at one or more radio network nodes in the wireless communication network for managing mobility of wireless devices operating within service areas corresponding to the one or more radio network nodes;

performing the mobility measurements on one or more reference signals in the identified set of reference signals; and

transmitting an indication of the mobility measurements to one or more of the one or more radio network nodes.

2. The method according to claim 1 , wherein the identified set of reference signals includes at least one reference signal, wherein each included reference signal corresponds to a beam, and wherein the method includes the wireless device selecting, based on the mobility measurements, one of the corresponding beams to use for communicating in the wireless communication network, for the communication service type or class that is in use or to be used by the wireless device.

3. The method according to claim 1 , wherein transmitting the indication of the mobility measurements to one or more of the one or more radio network nodes comprises transmitting the indication on a triggered basis, responsive to determining that a measured signal strength or quality of the one or more reference signals considered in the mobility measurements fulfills a condition.

4. The method according to claim 1 , wherein transmitting the indication of the mobility measurements comprises transmitting one of:

a measurement report, a sounding reference signal, or an uplink synchronization signal.

5. The method according to claim 1 , wherein each corresponding set of reference signals comprises a set of reference signals associated with a respective beam group, such that different beam groups are associated with the different communication service classes or types, and wherein transmitting the indication of the mobility measurements provides the one or more radio network nodes with an indication of a best beam within the beam group for providing the communication service or type.

6. The method according to claim 1 , further comprising receiving the configuration information from one or more of the one or more radio network nodes.

7. A method performed by a first radio network node in a wireless communication network, the method comprising:

configuring corresponding sets of reference signals for different communication service types or classes, the corresponding sets of reference signals to be transmitted by one or both of the first radio network node and a neighboring second radio network node, to support mobility management of wireless devices operating in service areas provided by the first and second radio network nodes;

sending configuration information to the second radio network node, indicating the corresponding sets of reference signals;

transmitting configuration information over an air interface of the first radio network node, indicating the corresponding sets of reference signals;

receiving an indication of mobility measurements performed by a wireless device with respect to a selected set of reference signals, as selected in dependence on a communication service or type in use or to be used by the wireless device; and

performing mobility management of the wireless device with respect to the second radio network node, in dependence on the received indication of mobility measurements.

8. The method according to claim 7 , further comprising determining the communication service class or type in use or to be used by the wireless device, in dependence on identifying the selected set of reference signals used by the wireless device for performing mobility measurements.

9. The method according to claim 7 , further comprising configuring beam groups corresponding to the different communication service types or classes and transmitting individual reference signals in each set of reference signals in respective ones of the beams comprised in each beam group.

10. A wireless device configured for operation in a wireless communication network, the wireless device comprising:

communication circuitry configured for communication in the wireless communication network; and

processing circuitry operatively associated with the communication circuitry and configured to:

identify a set of reference signals to use for performing mobility measurements at the wireless device, based on configuration information and a communication service type or class in use or to be used by the wireless device, wherein the configuration information associates different communication service classes or types with corresponding sets of reference signals used at one or more radio network nodes in the wireless communication network for managing mobility of wireless devices operating within service areas corresponding to the one or more radio network nodes;

perform the mobility measurements on one or more reference signals in the identified set of reference signals; and

transmit an indication of the mobility measurements to one or more of the one or more radio network nodes.

11. The wireless device according to claim 10 , wherein the identified set of reference signals includes at least one reference signal, wherein each included reference signal corresponds to a beam, and wherein the processing circuitry is configured to select, based on the mobility measurements, one of the corresponding beams to use for communicating in the wireless communication network, for the communication service type or class that is in use or to be used by the wireless device.

12. The wireless device according to claim 10 , wherein the processing circuitry is configured to:

transmit the indication of the mobility measurements to one or more of the one or more radio network nodes on a triggered basis, responsive to determining that a measured signal strength or quality of the one or more reference signals considered in the mobility measurements fulfills a condition.

13. The wireless device according to claim 10 , wherein the processing circuitry is configured to transmit the indication of the mobility measurements by transmitting one of:

a measurement report, a sounding reference signal, or an uplink synchronization signal.

14. The wireless device according to claim 10 , wherein each corresponding set of reference signals comprises a set of reference signals associated with a respective beam group, such that different beam groups are associated with the different communication service classes or types, and wherein transmission of the indication of the mobility measurements provides the one or more radio network nodes with an indication of a best beam within the beam group for providing the communication service or type.

15. The wireless device according to claim 10 , wherein the processing circuitry is configured to receive the configuration information from one or more of the one or more radio network nodes.

16. A first radio network node configured for operation in a wireless communication network, the first radio network node comprising:

communication circuitry configured for communication with one or both of a wireless device and a neighboring second radio network node; and

processing circuitry operatively associated with the communication circuitry and configured to:

configure corresponding sets of reference signals for different communication service types or classes, the corresponding sets of reference signals to be transmitted by one or both of the first radio network node and the second radio network node, to support mobility management of wireless devices operating in service areas provided by the first and second radio network nodes;

send configuration information to the second radio network node, indicating the corresponding sets of reference signals;

transmit configuration information over an air interface of the first radio network node, indicating the corresponding sets of reference signals;

receive an indication of mobility measurements performed by a wireless device with respect to a selected set of reference signals, as selected in dependence on a communication service or type in use or to be used by the wireless device; and

perform mobility management of the wireless device with respect to the second radio network node, in dependence on the received indication of mobility measurements.

17. The first radio network node according to claim 16 , wherein the processing circuitry is configured to:

determine the communication service class or type in use or to be used by the wireless device, in dependence on identifying the selected set of reference signals used by the wireless device for performing mobility measurements.

18. The first radio network node according to claim 16 , wherein the processing circuitry is configured to configure beam groups corresponding to the different communication service types or classes and transmitting individual reference signals in each set of reference signals in respective ones of the beams comprised in each beam group.

19. A non-transitory computer-readable storage medium, having stored thereon a computer program comprising instructions, which, when executed on at least one processor of a wireless device configured for operation in a wireless communication network, cause the at least one processor to:

identify a set of reference signals to use for performing mobility measurements at the wireless device, based on configuration information and a communication service type or class in use or to be used by the wireless device, wherein the configuration information associates different communication service classes or types with corresponding sets of reference signals used at one or more radio network nodes in the wireless communication network for managing mobility of wireless devices operating within service areas corresponding to the one or more radio network nodes;

perform the mobility measurements on one or more reference signals in the identified set of reference signals; and

transmit an indication of the mobility measurements to one or more of the one or more radio network nodes.

20. A non-transitory computer-readable storage medium, having stored thereon a computer program comprising instructions which, when executed on at least one processor of a first radio network node configured for operation in a wireless communication network, cause the at least one processor to:

configure corresponding sets of reference signals for different communication service types or classes, the corresponding sets of reference signals to be transmitted by one or both of the first radio network node and a neighboring second radio network node, to support mobility management of wireless devices operating in service areas provided by the first and second radio network nodes;

send configuration information to the second radio network node, indicating the corresponding sets of reference signals;

transmit configuration information over an air interface of the first radio network node, indicating the corresponding sets of reference signals;

receive an indication of mobility measurements performed by a wireless device with respect to a selected set of reference signals, as selected in dependence on a communication service or type in use or to be used by the wireless device; and

perform mobility management of the wireless device with respect to the second radio network node, in dependence on the received indication of mobility measurements.