# US 2021/0345141 A1 · Electronic device and method for wireless communication, and computer-readable storage medium

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- Number: US 2021/0345141 A1
- Document ID: US20210345141A1
- Status: Published application
- Kind: A1
- Application number: 17/272,674
- Filed: 2019-09-05
- Published: 2021-11-04
- Earliest claimed: 2018-09-12
- Assignees: Sony Corporation
- Applicants: Sony Corporation
- Inventors: Jianfei CAO
- Web page: https://patentgrep.com/patent/US20210345141A1

## CPC

- H04W 24/08: Testing, {supervising or monitoring} using real traffic
- H04B 17/345: Interference values ({signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]} H04B17/336)
- H04L 5/0023: {Time-frequency-space}
- H04L 5/0035: {Resource allocation in a cooperative multipoint environment}
- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04L 5/0062: {Avoidance of ingress interference, e.g. ham radio channels}
- H04L 5/0073: {Allocation arrangements that take into account other cell interferences}
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04W 72/541: using the level of interference
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

Provided are an electronic device and method for wireless communication, and a computer-readable storage medium. The electronic device comprises: a processing circuit configured to determine a resource, which is expected to be used for interference beam measurement and which is used for sending a reference signal, of a neighbor cell, wherein the interference beam measurement is used for measuring the degree of interference of a transmitted beam of the neighbor cell in a serving cell; report a resource indicator of the determined resource to a base station of the serving cell; and execute interference beam measurement on the basis of configuration information from the base station.

## Claims

### Claim 1

An electronic apparatus for wireless communications, comprising:
processing circuitry, configured to:
determine resources of a neighboring cell for transmitting a reference signal which are desired to be used for interference beam measurement, wherein the interference beam measurement is used to measure a degree of interferences produced by a transmitting beam of the neighboring cell to a serving cell;
report a resource indicator of the determined resources to a base station of the serving cell; and
execute the interference beam measurement based on configuration information from the base station.

### Claim 2 (depends on 1)

The electronic apparatus according to claim 1, wherein, the processing circuitry is configured to determine the resources based on information collected at the time of initial access and/or configuration relevant to mobility.

### Claim 3 (depends on 1)

The electronic apparatus according to claim 1, wherein, the configuration information comprises one or more of the following: resources of the serving cell for the interference beam measurement; resources of the neighboring cell for transmitting the reference signal; periodicity configuration relevant to the interference beam measurement; a sweeping scheme of an interference beam; and a category of the reference signal,
wherein the periodicity configuration relevant to the interference beam measurement comprises one or more of the following: periodical measurement, aperiodic measurement, and semi-persistent measurement,
wherein the sweeping scheme of the interference beam comprises one of the following: a base station of the neighboring cell sweeps the transmitting beam, and user equipment of the serving cell sweeps a receiving beam; the base station of the neighboring cell sweeps the transmitting beam, and user equipment of the serving cell fixes the receiving beam; and the base station of the neighboring cell fixes the transmitting beam, and user equipment of the serving cell sweeps a receiving beam.

### Claim at position 4

-6. (canceled)

### Claim 7 (depends on 1)

The electronic apparatus according to claim 1, wherein the reference signal is a synchronization signal, and the resource indicator is a synchronization signal block resource indicator, wherein a base station of the neighboring cell sweeps the transmitting beam, and user equipment of the serving cell sweeps a receiving beam; or
wherein the reference signal is a channel state information reference signal, and the resource indicator is a channel state information reference signal resource indicator.

### Claim 8

(canceled)

### Claim 9 (depends on 7)

The electronic apparatus according to claim 7, wherein the processing circuitry is configured to determine a sweeping scheme of the interference beam based on a specific parameter in radio resource control signaling.

### Claim 10

(canceled)

### Claim 11 (depends on 1)

The electronic apparatus according to claim 1, wherein the processing circuitry is further configured to report a measurement result of the interference beam measurement to the base station,
wherein the processing circuitry is configured to:
with respect to each pair of beams of the serving cell for transceiving the reference signal, measure a physical layer reference signal received power;
with respect to each pair of beams formed by the transmitting beam of the base station of the neighboring cell and a receiving beam of the user equipment of the serving cell, which is used for the interference beam measurement, measure a physical layer received signal strength indication, or measure a sum of interferences and noise on resources elements carrying the reference signal; and
calculate, based on the measured physical layer reference signal received power and the physical layer received signal strength indication, physical layer reference signal receiving quality of each pair of beams of the serving cell in a case of taking interferences from the neighboring cell into consideration, or calculate, based on the measured physical layer reference signal received power and the sum of the interferences and noise, a physical layer signal to interference and noise ratio of each pair of beams of the serving cell in a case of taking the interferences from the neighboring cell into consideration.

### Claim 12

(canceled)

### Claim 13 (depends on 11)

The electronic apparatus according to claim 11, wherein the processing circuitry is configured to determine, based on the calculated physical layer reference signal receiving quality or physical layer signal to interference and noise ratio, N pairs of beams of the serving cell with maximum physical layer reference signal receiving quality or physical layer signal to interference and noise ratio, as N pairs of beams with best beam quality in the case of taking interferences from the neighboring cell into consideration, and report resource indicators of resources of the reference signals corresponding to the transmitting beams in the N pairs of beams to the base station as the measurement result, wherein N is a natural number.

### Claim 14 (depends on 13)

The electronic apparatus according to claim 13, wherein the measurement result comprises an indication of beam quality relevant to the N pairs of beams.

### Claim 15 (depends on 14)

The electronic apparatus according to claim 14, wherein the indication of beam quality comprises a quantized value of physical layer reference signal receiving quality or a physical layer signal to interference and noise ratio relevant to each pair of beams among the N pairs of beams,
wherein the processing circuitry is further configured to use, by taking the maximum physical layer reference signal receiving quality or physical layer signal to interference and noise ratio as a reference, a differential value of physical layer reference signal receiving quality or a physical layer signal to interference and noise ratio relevant to another pair of beams among the N pairs of beams relative to the reference as an indication of the beam quality of the other pair of beams; or
wherein the indication of beam quality comprises a quantized value of the physical layer reference signal received power of each pair of beams among the N pairs of beams, wherein the processing circuitry is configured to use, by taking maximum physical layer reference signal received power as a reference, a differential value of another physical layer reference signal received power relative to the reference as a quantized value of the physical layer reference signal received power of another pair of beams, and the indication of beam quality further comprises information indicating a position of the maximum physical layer reference signal received power in the measurement result.

### Claim at position 14

-18. (canceled)

### Claim 19 (depends on 11)

The electronic apparatus according to claim 11, wherein the processing circuitry is configured to determine, based on the measured physical layer reference signal received power, the N pairs of beams of the serving cell with the maximum physical layer reference signal received power as N pairs of beams with the best beam quality in the case of taking interferences from the neighboring cell into consideration, and report resource indicators of resources of the reference signals corresponding to transmitting beams in the N pairs of beams to the base station as the measurement result, wherein N is a natural number, and the measurement result further comprises interference information relevant to the N pairs of beams.

### Claim 20 (depends on 19)

The electronic apparatus according to claim 19, wherein the measurement result further comprises a quantized value of the physical layer reference signal received power of each pair of beams among the N pairs of beams, wherein the processing circuitry is configured to use, by taking maximum physical layer reference signal received power as a reference, a differential value of another physical layer reference signal received power relative to the reference as a quantized value of the physical layer reference signal received power of another pair of beams.

### Claim 21 (depends on 19)

The electronic apparatus according to claim 19, wherein the interference information comprises one of the following: an indication of whether the physical layer reference signal receiving quality or physical layer signal to interference and noise ratio relevant to each pair of beams among the N pairs of beams is above a predetermined threshold; and an indication of a range within which the physical layer reference signal receiving quality or physical layer signal to interference and noise ratio relevant to each pair of beams among the N pairs of beams falls; or
wherein the interference information comprises information of ranking of the N pairs of beams according to the physical layer reference signal receiving quality or physical layer signal to interference and noise ratio.

### Claim 22

(canceled)

### Claim 23 (depends on 11)

The electronic apparatus according to claim 11, wherein the processing circuitry is further configured to determine, based on the calculated physical layer reference signal receiving quality or physical layer signal to interference and noise ratio, M pairs of beams that produce strongest or weakest interferences to the serving cell among pairs of beams formed by transmitting beams of the base station of the neighboring cell and receiving beams of the user equipment of the serving cell, and comprise resource indicators of resources of reference signals of the neighboring cells corresponding to transmitting beams in the M pairs of beams and identifiers of the neighboring cells in the measurement result.

### Claim 24 (depends on 1)

The electronic apparatus according to claim 1, wherein the processing circuitry is further configured to report information indicating whether to support joint measurement to the base station, wherein in the joint measurement, resources of the reference signals for the interference beam measurement and resources for mobility measurement spatially quasi co-located with the resources of the reference signal for the interference beam measurement are simultaneously measured.

### Claim 25

An electronic apparatus for wireless communications, comprising:
processing circuitry, configured to:
acquire an indicator of resources to be measured from user equipment of a serving cell, wherein the indicator of resources to be measured indicates resources of a neighboring cell for transmitting a reference signal which are desired to be used for interference beam measurement, and the interference beam measurement is used to measure a degree of interferences produced by a transmitting beam of the neighboring cell to the serving cell;
provide the indicator of resources to be measured to a base station of the neighboring cell; and
generate configuration information for the interference beam measurement to be provided to the user equipment.

### Claim 26

(canceled)

### Claim 27 (depends on 25)

The electronic apparatus according to claim 25, wherein the reference signal is a channel state information reference signal or a synchronization signal, and the processing circuitry is further configured to acquire feedback information with respect to the indicator of resources to be measured from the base station of the neighboring cell.

### Claim 28 (depends on 27)

The electronic apparatus according to claim 27, wherein the feedback information comprises one of the following: acknowledgement information; and a modified indicator of resources to be measured.

### Claim at position 25

-34. (canceled)

### Claim 35 (depends on 25)

The electronic apparatus according to claim 25, wherein the processing circuitry is further configured to acquire a measurement result of the interference beam measurement from the user equipment,
wherein the measurement result comprises resource indicators of N resources of the serving cell for transmitting the reference signals, wherein among pairs of beams used for the interference beam measurement, N pairs of beams formed by transmitting beams corresponding to the N resources and receiving beams of the user equipment have best beam quality in a case of taking interferences from the neighboring cell into consideration, and N is a natural number.

### Claim at position 27

-39. (canceled)

### Claim 40 (depends on 25)

The electronic apparatus according to claim 25, wherein the processing circuitry is further configured to receive an indicator of resources to be measured from a base station of the neighboring cell, and provide feedback information with respect to the indicator of resources to be measured to the base station of the neighboring cell.

### Claim 41

A method for wireless communications, comprising:
determining resources of a neighboring cell for transmitting a reference signal which are desired to be used for interference beam measurement, wherein the interference beam measurement is used to measure a degree of interferences produced by a transmitting beam of the neighboring cell to a serving cell;
reporting a resource indicator of the determined resources to a base station of the serving cell; and
executing the interference beam measurement based on configuration information from the base station.

### Claim at position 30

-43. (canceled)
