MANAGING UNCERTAIN MEASUREMENT OCCASIONS

• US 20150208262A1
• Filed: 04/09/2013
• Published: 07/23/2015
• Est. Priority Date: 04/09/2012
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Siomina, Iana
• Granted Patent: US 10,419,960 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01S 5/021 Calibration, monitoring or correction G01S5/0252 takes precedence
• CPC Class Codes: G01S 5/06 Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements G01S5/12 takes precedence
• CPC Class Codes: H04L 5/0005 Time-frequency
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Abstract

A method is provided for configuring measurements performed by wireless communication devices. The method includes obtaining, at a first wireless communication device, information identifying a plurality of measurement occasions in which a second wireless communication device is scheduled to transmit a measurement signal to be used by the first wireless communication to perform a first measurement. The method also includes obtaining, at the first wireless communication device, information indicating one or more measurement gaps associated with the second wireless communication device in which the second wireless communication device is configured to perform a second measurement and adjusting measurements performed by the first wireless communication device based on the obtained information indicating one or more measurement gaps.

Claims

1. A method for configuring measurements performed by wireless communication devices, the method comprising:

obtaining, at a first wireless communication device, information identifying a plurality of measurement occasions in which a second wireless communication device is scheduled to transmit a measurement signal to be used by the first wireless communication to perform a first measurement;

obtaining, at the first wireless communication device, information indicating one or more measurement gaps associated with the second wireless communication device in which the second wireless communication device is configured to perform a second measurement; and

adjusting measurements performed by the first wireless communication device based on the obtained information indicating one or more measurement gaps.

2. The method of claim 1, wherein adjusting measurements performed by the first wireless communication device comprises refraining from performing measurements during one or more measurement occasions that coincide with an indicated measurement gap.

3. The method of claim 1, wherein adjusting measurements performed during the indicated measurement gaps comprises assigning a weight to a measurement or a received signal based on the measurement occurring during an indicated measurement gap.

4. The method of claim 1, wherein obtaining the information indicating one or more measurement gaps associated with the second wireless communication device comprises obtaining information indicating when a first signal that is to be measured by the second wireless communication device will be transmitted.

5. The method of claim 4, wherein the first signal comprises a Master Information Block (MIB) or a Type 1 System Information Block (SIB1).

6. A method for configuring measurements performed by wireless communication devices, the method comprising:

obtaining, at a first wireless communication device, information identifying a plurality of measurement occasions during which a second wireless communication device is scheduled to transmit a first type of signal to be measured by the first wireless communication device;

obtaining, at the first wireless communication device, information indicating one or more transmission resources for which the second wireless communication device is configured to transmit a second type of signal; and

adjusting measurements performed by the first wireless communication device in one or more of the indicated time/frequency resources in which the second wireless communication device is configured to transmit the second type of signal.

7. The method of claim 6, wherein adjusting measurements performed in one or more of the indicated time/frequency resources comprises refraining from performing measurements in one or more measurement occasions that coincide with an indicated time/frequency resources in which the second wireless communication device is configured to transmit the second type of signal.

8. The method of claim 6, wherein adjusting measurements performed in one or more of the indicated time/frequency resources comprises assigning a weight to a measurement based on the measurement occurring during a measurement occasion that coincides with an indicated time/frequency resource during which the second wireless communication device is configured to transmit the second type of signal.

9. The method of claim 6, wherein obtaining information indicating one or more time/frequency resources in which the second wireless communication device is configured to transmit a second type of signal comprises obtaining information indicating one or more modulation symbols during which the second wireless communication device is configured to transmit a Physical Uplink Shared CHannel (PUSCH) transmission.

10. The method of claim 6, wherein obtaining information indicating one or more time/frequency resources during which the second wireless communication device is configured to transmit a second type of signal comprises obtaining information indicating one or more subframes during which the second wireless communication device is configured to perform a transmission corresponding to a random access response grant as part of a contention-based random access procedure.

11. The method of claim 6, wherein:

obtaining information identifying a plurality of measurement occasions during which the second wireless communication device is scheduled to transmit a first type of signal comprises obtaining information identifying a plurality of measurement occasions during which the second wireless communication device is scheduled to transmit type 0 sounding reference signals (SRS); and

obtaining information indicating one or more time/frequency resources during which the second wireless communication device is configured to transmit a second type of signal comprises obtaining information indicating one or more subframes during which the second wireless communication device is configured to transmit a Physical Uplink Control CHannel (PUCCH) format 2, format 2a, or format 2b message.

12. The method of claim 6, wherein:

obtaining information identifying a plurality of measurement occasions during which the second wireless communication device is scheduled to transmit a first type of signal comprises obtaining information identifying a plurality of measurement occasions during which the second wireless communication device is scheduled to transmit type 1 sounding reference signals (SRS); and

obtaining information indicating one or more time/frequency resources during which the second wireless communication device is configured to transmit a second type of signal comprises obtaining information indicating one or more subframes during which the second wireless communication device is configured to transmit a Physical Uplink Control CHannel (PUCCH) format 2a or format 2b message or to transmit a PUCCH format 2 message with a Hybrid Automatic Repeat reQuest (HARQ) acknowledgement.

13. The method of claim 6, wherein adjusting measurements performed by the first wireless communication device in one or more of the indicated time/frequency resources comprises:

determining whether a simultaneous transmission parameter is set to a first value; and

in response to determining that the simultaneous transmission parameter is set to the first value, adjusting measurements performed by the first wireless communication device in one or more of the indicated time/frequency resources.

14. A method for configuring measurements performed by wireless communication devices, the method comprising:

obtaining, at a first wireless communication device, information identifying a plurality of measurement occasions during which a second wireless communication device is scheduled to transmit a first type of signal to be measured by the first wireless communication device;

obtaining, at the first wireless communication device, information indicating one or more time/frequency resources in which the second wireless communication device is configured to have reduced transmission activity; and

adjusting measurements performed by the first wireless communication device during one or more of the indicated time/frequency resources in which the second wireless communication device is configured to have reduced transmission activity.

15. The method of claim 14, wherein obtaining information indicating one or more time/frequency resources in which the second wireless communication device is configured to have reduced transmission activity comprises obtaining information indicating one or more time/frequency resources in which uplink transmissions by the second wireless communication device will be muted as part of an interference coordination procedure.

16. The method of claim 14, wherein obtaining information indicating one or more time/frequency resources in which the second wireless communication device is configured to have reduced transmission activity comprises obtaining information indicating one or more time/frequency resources in which the second wireless communication device will be in an inactive discontinuous transmission (DTX) mode.

17. The method of claim 14, wherein obtaining information indicating one or more time/frequency resources in which the second wireless communication device is configured to have reduced transmission activity comprises obtaining information indicating one or more time/frequency resources in which the second wireless communication device will refrain from transmitting type 0 sounding reference signals (SRS) as a result of a discontinuous reception (DRX) state of the second wireless communication device.