IP Library Granted Patent US 10,812,202
Granted Patent B2
US 10,812,202 · App. 16/143,799 · Granted Oct 20, 2020

Resources for channel measurements

Inventors: Sumeeth Nagaraja (San Diego, CA); Tao Luo (San Diego, CA); Muhammad Nazmul Islam (Edison, NJ); Hung Dinh Ly (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04B17/309H04B7/063H04B7/0695H04L5/005H04L25/0204H04B7/0617H04B17/318H04B17/345
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Quick Facts
Patent No.
US 10,812,202
App. No.
16/143,799
Granted
Oct 20, 2020
Kind
B2
Abstract

Methods, systems, and devices for wireless communications are described. A base station may identify resources associated with a beamformed signal, the identified resources being used by a user equipment (UE) for channel measurements of the beamformed signal, the beamformed signal being one of a plurality of beamformed signals. The base station may generate a signal indicating at least a portion of the identified resources and transmit the signal to the UE. The UE may receive the signal and perform a channel measurement of the beamformed signal using the indicated resources. The UE may transmit, to the base station, a measurement report comprising the channel measurement associated with the beamformed signal.

Claims (72)

1. A method for wireless communication, comprising:

identifying resources associated with a beamformed signal, the identified resources to be used by a user equipment (UE) for channel measurements of the beamformed signal, the beamformed signal being one of a plurality of beamformed signals;

generating a signal indicating at least a portion of the identified resources to be used for channel measurements, wherein generating the signal comprises applying a mask to a bit or field in the signal to indicate the identified resources, wherein the mask indicates a system frame number (SFN), a slot index, a symbol index, or a combination; and

transmitting the signal to the UE.

2. The method of claim 1 , further comprising:

receiving, based at least in part on the identified resources, a measurement report associated with the beamformed signal.

3. The method of claim 1 , further comprising:

identifying a receive beam of the UE used for receiving a previous beamformed signal; and

generating the signal to indicate the receive beam, wherein the identified resources comprise the receive beam.

4. The method of claim 1 , further comprising:

generating at least one of: a system information signal, or a radio resource control (RRC) signal, or a handover message, or combinations thereof, the handover message indicating at least a portion of the identified resources.

5. The method of claim 1 , further comprising:

configuring at least one of: a media access control (MAC) control element (CE), or a downlink control information (DCI), or combinations thereof, to enable the channel measurements by the UE using the identified resources.

6. The method of claim 1 , further comprising:

determining that a measurement report received from the UE comprises an interference level satisfying a threshold for a subset of resources, wherein the identified resources are based at least in part on the subset of resources.

7. The method of claim 1 , further comprising:

identifying a set of resources associated with one or more neighboring base stations located proximate to the UE; and

generating the signal to indicate the set of resources.

8. The method of claim 7 , further comprising:

coordinating with the one or more neighboring base stations to identify the set of resources.

9. The method of claim 1 , wherein the identified resources comprise at least a time resource indicated as a system frame number (SFN), a slot index, a symbol index, or combinations thereof, and further include quasi co-location (QCL) information.

10. The method of claim 1 , wherein the identified resources are associated with at least one of: a physical downlink control channel (PDCCH) region, or a physical downlink shared channel (PDSCH) region, or a physical uplink control channel (PUCCH) region, or a physical uplink shared channel (PUSCH) region, or a combination thereof, of a transmission.

11. A method for wireless communication, comprising:

receiving a signal from a base station indicating resources to be used for a beamformed signal within a plurality of beamformed signals, wherein the signal indicates the resources using a mask to a bit or field indicating a system frame number (SFN), a slot index, a symbol index, or a combination;

performing a channel measurement of the beamformed signal using the indicated resources; and

transmitting, to the base station, a measurement report comprising the channel measurement associated with the beamformed signal.

12. The method of claim 11 , further comprising:

transmitting a previous measurement report identifying a receive beam used for measurements on the beamformed signal, wherein the signal comprises an indication of the receive beam.

13. The method of claim 11 , further comprising:

performing, based at least in part on the signal, the channel measurement on at least one beamformed signal from or more neighboring base stations.

14. The method of claim 11 , further comprising:

determining, based at least in part on the channel measurement, that an interference level of the beamformed signal exceeds a threshold; and

omitting an indication of the interference level from the measurement report.

15. An apparatus for wireless communication, comprising:

a processor;

memory in electronic communication with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

identify resources associated with a beamformed signal, the identified resources to be used by a user equipment (UE) for channel measurements of the beamformed signal, the beamformed signal being one of a plurality of beamformed signals;

generate a signal indicating at least a portion of the identified resources to be used for channel measurements, wherein the generated signal includes a mask applied to a bit or field to indicate the identified resources, wherein the mask indicates a system frame number (SFN), a slot index, a symbol index, or a combination; and

transmit the signal to the UE.

16. The apparatus of claim 15 , wherein the instructions are further executable by the processor to cause the apparatus to:

receive, based at least in part on the identified resources, a measurement report associated with the beamformed signal.

17. The apparatus of claim 15 , wherein the instructions are further executable by the processor to cause the apparatus to:

identify a receive beam of the UE used for receiving a previous beamformed signal; and

generate the signal to indicate the receive beam, wherein the identified resources comprise the receive beam.

18. The apparatus of claim 15 , wherein the instructions are further executable by the processor to cause the apparatus to:

generate at least one of: a system information signal, or a radio resource control (RRC) signal, or a handover message, or combinations thereof, the handover message indicating at least a portion of the identified resources.

19. The apparatus of claim 15 , wherein the instructions are further executable by the processor to cause the apparatus to:

configure at least one of: a media access control (MAC) control element (CE), or a downlink control information (DCI), or combinations thereof, to enable the channel measurements by the UE using the identified resources.

20. The apparatus of claim 15 , wherein the instructions are further executable by the processor to cause the apparatus to:

determine that a measurement report received from the UE comprises an interference level satisfying a threshold for a subset of resources, wherein the identified resources are based at least in part on the subset of resources.

21. The apparatus of claim 15 , wherein the instructions are further executable by the processor to cause the apparatus to:

identify a set of resources associated with one or more neighboring base stations located proximate to the UE; and

generate the signal to indicate the set of resources.

22. The apparatus of claim 21 , wherein the instructions are further executable by the processor to cause the apparatus to:

coordinate with the one or more neighboring base stations to identify the set of resources.

23. The apparatus of claim 15 , wherein the identified resources comprise at least a time resource indicated as a system frame number (SFN), a slot index, a symbol index, or combinations thereof, and further include quasi co-location (QCL) information.

24. The apparatus of claim 15 , wherein the identified resources are associated with at least one of: a physical downlink control channel (PDCCH) region, or a physical downlink shared channel (PDSCH) region, or a physical uplink control channel (PUCCH) region, or a physical uplink shared channel (PUSCH) region, or a combination thereof, of a transmission.

25. An apparatus for wireless communication, comprising:

a processor;

memory in electronic communication with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

receive a signal from a base station indicating resources to be used for a beamformed signal within a plurality of beamformed signals, wherein the signal indicates the resources using a mask to a bit or field indicating a system frame number (SFN), a slot index, a symbol index, or a combination;

perform a channel measurement of the beamformed signal using the indicated resources; and

transmit, to the base station, a measurement report comprising the channel measurement associated with the beamformed signal.

26. The apparatus of claim 25 , wherein the instructions are further executable by the processor to cause the apparatus to:

transmit a previous measurement report identifying a receive beam used for measurements on the beamformed signal, wherein the signal comprises an indication of the receive beam.

27. The apparatus of claim 25 , wherein the instructions are further executable by the processor to cause the apparatus to:

perform, based at least in part on the signal, the channel measurement on at least one beamformed signal from or more neighboring base stations.

28. The apparatus of claim 25 , wherein the instructions are further executable by the processor to cause the apparatus to:

determine, based at least in part on the channel measurement, that an interference level of the beamformed signal exceeds a threshold; and

omit an indication of the interference level from the measurement report.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 25, 2019
From: NAGARAJA, SUMEETH; LUO, TAO; ISLAM, MUHAMMAD NAZMUL; LY, HUNG DINH
To: QUALCOMM INCORPORATED
Reel/Frame 048136/0390 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 25, 2019
From: SUNDARARAJAN, JAY KUMAR; GOEL, SATASHU; JIANG, JING; BHUSHAN, NAGA; TOKGOZ, YELIZ
To: QUALCOMM INCORPORATED
Reel/Frame 048136/0910 →
Continuity (2)
Provisional Application 62567181 · Oct 2, 2017
Related Publication 20190103928A1 · Apr 4, 2019