METHODS AND SYSTEMS FOR CONTROLLING GAP SHARING BETWEEN INTRA-FREQUENCY MEASUREMENTS OF DIFFERENT TYPES

• US 20200137601A1
• Filed: 03/23/2018
• Published: 04/30/2020
• Est. Priority Date: 03/24/2017
• Status: Active Application

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: SIOMINA, Iana, KAZMI, Muhammad, THANGARASA, Santhan
• Application Number:
  US16/496,692
• Publication Number:
  US 20200137601A1
• Time in Patent Office: Days
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 36/0088 Scheduling hand-off measurements
• CPC Class Codes: H04W 36/0094 Definition of hand-off measurement parameters
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information

Abstract

According to certain embodiments, a method in a wireless device includes receiving, from a first network node, first configuration information related to a first type of discovery reference signals. Second configuration information related to a second type of discovery reference signals is received from a second network node. A variable cell identification delay or variable measurement delay is determined on the basis of the first configuration information and second configuration information. At least one first measurement is performed on a discovery reference signal of the first type. At least one second measurement is performed on a discovery reference signal of a second type. One or more operational tasks is performed based on the at least one first measurement and the at least one second measurement.

Claims

1. A method in a wireless device, comprising:

receiving, from a first network node via a first wireless interface between the first network node and the wireless device, first configuration information related to a first type of discovery reference signals;

receiving, from a second network node via a second wireless interface between the second network node and the wireless device second configuration information related to a second type of discovery reference signals, the second network node being different than the first network node;

determining a cell identification delay or measurement delay on the basis of the first configuration information and second configuration information, wherein the cell identification delay or measurement delay is variable;

performing at least one first measurement on a discovery reference signal of the first type;

performing at least one second measurement on a discovery reference signal of a second type; and

performing one or more operational tasks based on the at least one first measurement and the at least one second measurement.

2. The method of claim 1, wherein the one or more operational tasks include at least one of:

reporting results of the at least one first measurement or the at least one second measurements to the first network node or the second network node in accordance with the cell identification delay or measurement delay;

determining positioning of the wireless device;

performing a cell change;

performing radio link monitoring;

optimizing a receiver configuration; and

logging the results.

3. The method of claim 1, wherein the at least one second measurement comprises identification of a cell performed within a duration corresponding to the cell identification delay or a measurement performed within a duration corresponding to the measurement delay.

4. The method of claim 1, wherein determining the cell identification delay or measurement delay comprises increasing a default cell identification delay or a default measurement delay when a subframe configuration period of the discovery reference signal of the first type exceeds a threshold value.

5. The method of claim 4, wherein increasing the default cell identification delay comprises increasing the default cell identification delay for performing the measurements on the discovery reference signal of the first type when the measurements on the discovery reference signal of the first type are of a higher priority than the measurements on the discovery reference signal of the second type.

6. The method of claim 1, wherein the measurements on the discovery reference signal of the second type are performed in measurement gaps associated with the first configuration information.

7. The method of claim 6, further comprising:

transmitting, to the first network node, an indication of an ability to perform the measurements on the discovery reference signal of the first type in the measurement gaps associated with the second configuration information.

8. The method of claim 6, wherein:

in response to determining that a bandwidth associated with the discovery reference signals of the first type is less than a bandwidth of at least one cell on a serving carrier, the measurements on the discovery reference signal of the first type are performed in the measurement gaps associated with the second configuration information.

9. The method of claim 8, further comprising increasing a default cell identification delay or a default measurement delay by a parameter which is a function of a measurement gap configuration and a configuration of the first type of discovery reference signal.

10. The method of claim 9, wherein the measurement gap configuration and the configuration of the first type of discovery reference signal comprises a measurement gap periodicity and a periodicity of the first type of discovery reference signal.

11. The method of claim 8, wherein:

in response to determining that a bandwidth associated with the discovery reference signal of the first type is equal to a bandwidth of a serving carrier, the at least one first measurement on the discovery reference signal of the first type are performed without measurement gaps.

12. The method of claim 1, wherein:

in response to determining that a bandwidth associated with the discovery reference signal of the first type is equal to a bandwidth of all cells on a serving carrier, the at least one measurement on the discovery reference signal of the first type are performed within a bandwidth used by the wireless device for receiving data or control signals from a first cell.

13. The method of claim 1, wherein the discovery reference signal of the first type is a positioning reference signal.

14. The method of claim 1, wherein the cell identification delay or measurement delay is related to the first type of discovery reference signal.

15. A wireless device comprising:

processing circuitry operable to;

receive, from a first network node via a first wireless interface between the first network node and the wireless device, first configuration information related to a first type of discovery reference signals;

receive, from a second network node via a second wireless interface between the second network node and the wireless device, second configuration information related to a second type of discovery reference signals, the second network node being different than the first network node;

determine a cell identification delay or measurement delay on the basis of the first configuration information and second configuration information, wherein the cell identification delay or measurement delay is variable;

perform at least one measurement on a discovery reference signal of the first type;

perform at least one measurement on a discovery reference signal of a second type; and

performing one or more operational tasks based on the at least one first measurement and the at least one second measurement.

16. The wireless device of claim 15, wherein the one or more operational tasks include at least one of:

reporting results of the at least one first measurement or the at least one second measurement to the first network node or the second network node in accordance with the cell identification delay or measurement delay;

determining positioning of the wireless device;

performing a cell change;

performing radio link monitoring;

optimizing receiver configuration; and

logging the results.

17. The wireless device of claim 15, wherein the at least one second measurement comprises identification of a cell performed within a duration corresponding to the cell identification delay or a measurement performed within a duration corresponding to the determined measurement delay.

18. The wireless device of claim 15, wherein when determining the cell identification delay or measurement delay the processing circuitry is operable to increase a default cell identification delay when a subframe configuration period of the discovery reference signal of the first type exceeds a threshold value.

19. The wireless device of claim 18, wherein when increasing the default cell identification delay the processing circuitry is operable to increase the default cell identification delay for performing the measurements on the discovery reference signal of the first type when the measurements on the discovery reference signal of the second type are of a higher priority than the measurements on the discovery reference signal of the first type.

20. The wireless device of claim 15, wherein the measurements on the discovery reference signal of the second type are performed in measurement gaps associated with the first configuration information.

21. The wireless device of claim 20, wherein the processing circuitry is operable to:

transmit, to the first network node, an indication of an ability to perform the measurements on the discovery reference signal of the first type in the measurement gaps associated with the second configuration information.

22. The wireless device of claim 20, wherein:

in response to determining that a bandwidth associated with the discovery reference signals of the first type is less than a bandwidth of at least one cell on a serving carrier, the measurements on the discovery reference signal of the first type are performed in the measurement gaps associated with the second configuration information.

23. The wireless device of claim 22, further comprising increasing a default cell identification delay or a default measurement delay by a parameter which is a function of a measurement gap configuration and a configuration of the first type of discovery reference signal.

24. The wireless device of claim 23, wherein the measurement gap configuration and the configuration of the first type of discovery reference signal comprises a measurement gap periodicity and a periodicity of the first type of discovery reference signal.

25. The wireless device of claim 22, wherein:

in response to determining that a bandwidth associated with the discovery reference signal of the first type is equal to a bandwidth of a serving carrier, the at least one first measurement on the discovery reference signal of the first type are performed without measurement gaps.

26. The wireless device of claim 15, wherein:

in response to determining that a bandwidth associated with the discovery reference signal of the first type is equal to a bandwidth of all cells on a serving carrier, the at least one first measurement on the discovery reference signal of the first type are performed within a bandwidth used by the wireless device for receiving data or control signals from a first cell.

27. The wireless device of claim 15, wherein the first type of discovery reference signal is a positioning reference signal.

28. The wireless device of claim 15, wherein the cell identification delay or measurement delay is related to the first type of discovery reference signal.

29-58. -58. (canceled)