Method and apparatus for avoiding in-device coexistence interference with preferred frequency notification
A method, system and device are provided for avoiding in-device coexistence interference between different radio technologies deployed in adjacent bands on the same device by providing preferred frequency solutions for the in-device coexistence system.
1. A method for use in user equipment (UE) device comprising first and second radio components on a single platform, comprising:
sending a coexistence interference indication message as a Radio Resource Control (RRC) message, the coexistence interference indication message comprising one or more control parameters by specifying a preferred frequency notification for the first radio component, wherein the preferred frequency notification indicates a fixed frequency boundary, a variable frequency boundary, or a transmission scheme which defines usable frequencies for the first radio component that will reduce interference or not interfere with the second radio component; and
receiving a response message comprising one or more control parameters for establishing a new frequency for the first radio component.
2. The method of claim 1 , further comprising:
enabling the first radio component with the one or more control parameters to use the new frequency without interference to/from the second radio component.
3. The method of claim 1 , where the first radio component comprises an LTE component, and where the second radio component comprises a Global Navigation Satellite System (GNSS) component or a component operating in an Industrial, Science and Medical (ISM) frequency band.
4. The method of claim 1 , further comprising receiving at the first radio component an internal message that the second radio component is or will be enabled.
5. The method of claim 1 , further comprising receiving at the first radio component an internal message identifying a transmission frequency band being used by the second radio component.
6. The method of claim 1 , further comprising measuring, by the UE, at the first radio component in-device coexistence interference from the second radio component.
7. The method of claim 1 , wherein the preferred frequency notification comprises a fixed frequency boundary which defines usable frequencies for the first radio component that will not interfere with the second radio component.
8. The method of claim 1 , wherein the preferred frequency notification comprises a variable frequency boundary which defines usable frequencies for the first radio component that will not interfere with the second radio component.
9. The method of claim 1 , wherein the preferred frequency notification comprises a frequency boundary which defines unusable frequencies for the first radio component that will interfere with the second radio component.
10. The method of claim 1 , wherein the preferred frequency notification identifies a transmission scheme used by the second radio component to implicitly specify a frequency band used by the second radio component.
11. The method of claim 1 , where the new frequency is consistent with the preferred frequency notification specified in the coexistence interference indication message.
12. A method for use in radio access network (eNB) to avoid interference between first and second radio components located on a single platform at a user equipment (UE), comprising:
receiving a coexistence interference indication message as a Radio Resource Control (RRC) message, the coexistence interference indication message comprising one or more control parameters for establishing a coexistence mode for the first and second radio components by specifying a preferred frequency notification for the first radio component, wherein the preferred frequency notification identifies a fixed frequency boundary, a variable frequency boundary, or a transmission scheme that which defines usable frequencies for the first radio component that will reduce interference or not interfere with the second radio component; and
sending, by the eNB, a response message comprising one or more control parameters for establishing a new frequency for the first radio component so that the first radio component at the UE can be enabled to use the new frequency without interference to/from the second radio component.
13. The method of claim 12 , wherein the preferred frequency notification comprises a frequency boundary which defines usable frequencies for the first radio component that will not interfere with the second radio component.
14. The method of claim 12 , where the indication message comprises a UECapabilityInformation message, a UEInformationResponse message, an RRCConnectionRequest message, an RRCConnectionReconfigurationComplete message, an RRCConnectionReestablishmentRequest message, a MeasurementReport message or a new RRC message to specify the preferred frequency notification for the first radio component.
15. The method of claim 12 , wherein the preferred frequency notification comprises a frequency boundary which defines unusable frequencies for the first radio component that will interfere with the second radio component.
16. The method of claim 12 , wherein the preferred frequency notification identifies a transmission scheme used by the second radio component to implicitly specify a frequency band used by the second radio component.
17. The method of claim 16 , further comprising:
applying a predefined system parameter to identify an interferable frequency band associated with the identified transmission scheme used by the second radio component; and
selecting the new frequency for the first radio component to be outside of the interferable frequency band.
18. The method of claim 12 , further comprising processing the preferred frequency notification to select the new frequency for the first radio component which will not interfere with the second radio component.
19. A user equipment (UE) device, comprising:
a first radio component and a second radio component on a single platform;
one or more processors configured to:
send a coexistence interference indication message as a Radio Resource Control (RRC) message, the coexistence interference indication message comprising one or more control parameters by specifying a preferred frequency notification for the first radio component, wherein the preferred frequency notification indicates a fixed frequency boundary, a variable frequency boundary, or a transmission scheme which defines usable frequencies for the first radio component that will reduce interference or not interfere with the second radio component; and
receive a response message comprising one or more control parameters for establishing a new frequency for the first radio component.
20. The UE of claim 19 , the one or more processors further configured to enable the first radio component with the one or more control parameters to use the new frequency without interference to/from the second radio component.
21. The UE of claim 19 , where the first radio component comprises an LTE component, and where the second radio component comprises a Global Navigation Satellite System (GNSS) component or a component operating in an Industrial, Science and Medical (ISM) frequency band.
22. The UE of claim 19 , the one or more processors further configured to receive at the first radio component an internal message that the second radio component is or will be enabled.
23. The UE of claim 19 , the one or more processors further configured to receive at the first radio component an internal message identifying a transmission frequency band being used by the second radio component.
24. The UE of claim 19 , the one or more processors further configured to measure at the first radio component in-device coexistence interference from the second radio component.
25. The UE of claim 19 , wherein the preferred frequency notification comprises a fixed frequency boundary which defines usable frequencies for the first radio component that will not interfere with the second radio component.
26. The UE of claim 19 , wherein the preferred frequency notification comprises a variable frequency boundary which defines usable frequencies for the first radio component that will not interfere with the second radio component.
27. The UE of claim 19 , wherein the preferred frequency notification comprises a frequency boundary which defines unusable frequencies for the first radio component that will interfere with the second radio component.
28. The UE of claim 19 , wherein the preferred frequency notification identifies a transmission scheme used by the second radio component to implicitly specify a frequency band used by the second radio component.
29. The UE of claim 19 , where the new frequency is consistent with the preferred frequency notification specified in the coexistence interference indication message.
30. An evolved node B (eNB) to avoid interference between first and second radio components located on a single platform at a user equipment (UE), comprising:
a memory; and
one or more processors communicatively coupled with the memory and configured to:
receive a coexistence interference indication message as a Radio Resource Control (RRC) message, the coexistence interference indication message comprising one or more control parameters for establishing a coexistence mode for the first and second radio components by specifying a preferred frequency notification for the first radio component, wherein the preferred frequency notification identifies a fixed frequency boundary, a variable frequency boundary, or a transmission scheme that which defines usable frequencies for the first radio component that will reduce interference or not interfere with the second radio component; and
send a response message comprising one or more control parameters for establishing a new frequency for the first radio component so that the first radio component at the UE can be enabled to use the new frequency without interference to/from the second radio component.
31. The eNB of claim 30 , wherein the preferred frequency notification comprises a frequency boundary which defines usable frequencies for the first radio component that will not interfere with the second radio component.
32. The eNB of claim 30 , where the indication message comprises a UECapabilityInformation message, a UEInformationResponse message, an RRCConnectionRequest message, an RRCConnectionReconfigurationComplete message, an RRCConnectionReestablishmentRequest message, a MeasurementReport message or a new RRC message to specify the preferred frequency notification for the first radio component.
33. The eNB of claim 30 , wherein the preferred frequency notification comprises a frequency boundary which defines unusable frequencies for the first radio component that will interfere with the second radio component.
34. The eNB of claim 30 , wherein the preferred frequency notification identifies a transmission scheme used by the second radio component to implicitly specify a frequency band used by the second radio component.
35. The eNB of claim 34 , the one or more processors further configured to:
apply a predefined system parameter to identify an interferable frequency band associated with the identified transmission scheme used by the second radio component; and
select the new frequency for the first radio component to be outside of the interferable frequency band.
36. The eNB of claim 30 , the one or more processors further configured to process the preferred frequency notification to select the new frequency for the first radio component which will not interfere with the second radio component.