# US 10,455,517 B2 · Managing unwanted transmissions

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- Number: US 10,455,517 B2
- Document ID: US10455517B2
- Status: Granted
- Kind: B2
- Application number: 15/913,513
- Filed: 2018-03-06
- Published: 2018-09-13
- Granted: 2019-10-22
- Earliest claimed: 2017-03-08
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Sony Akkarakaran; Tao Luo; Peter Gaal; Timo Ville Vintola; Hao Xu
- Web page: https://patentgrep.com/patent/US10455517B2

## CPC

- H04W 52/243: {taking into account interferences}
- H04L 5/0066: {Requirements on out-of-channel emissions}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W 52/146: {Uplink power control}
- H04W 52/281: {taking into account user or data type priority}
- H04W 72/569: {of the traffic information}
- H04B 7/0617: {for beam forming}
- H04B 17/11: for calibration
- H04B 17/14: of the whole transmission and reception path, e.g. self-test loop-back
- 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 5/0048: {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 5/1469: {using time-sharing}
- H04W 52/247: {where the output power of a terminal is based on a path parameter sent by another terminal}
- H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04B: TRANSMISSION

## Abstract

Aspects of the present disclosure provide techniques for managing unwanted transmissions by a wireless communications device, such as spurious transient transmissions caused by changing a power level of a transmitter. An exemplary method includes determining, based on one or more parameters, an action to reduce an impact of a spurious transmission by the UE, wherein the spurious transmission relates to at least one of changing a transmit power level at the UE or switching one or more radio components at the UE, and taking the determined action to reduce the impact.

## Claims

### Claim 1

A method for wireless communications by a user equipment (UE), comprising:
determining, based at least on a relative priority of a scheduled transmission by the UE to another signal, an action to reduce an impact of a spurious transmission by the UE that is related to the scheduled transmission;
receiving an indication, from a base station (BS), of the relative priority, wherein the indication of the relative priority is received in a grant including an indication of transmission resources for the UE to use for the scheduled transmission; and
taking the determined action to reduce the impact.

### Claim 2 (depends on 1)

The method of claim 1, wherein the spurious transmission relates to at least one of: changing a transmit power level at the UE, switching one or more radio components at the UE, or signaling transmitted as part of a calibration procedure at the UE.

### Claim 3

A method for wireless communications by a user equipment (UE), comprising:
determining, based at least on a relative priority of a scheduled transmission by the UE to another signal, an action to reduce an impact of a spurious transmission by the UE that is related to the scheduled transmission, wherein the scheduled transmission has a lower priority than the other signal and determining the action comprises determining to cause the spurious transmission to occur during a period for the scheduled transmission; and
taking the determined action to reduce the impact.

### Claim 4

A method for wireless communications by a user equipment (UE), comprising:
determining, based at least on a relative priority of a scheduled transmission by the UE to another signal, an action to reduce an impact of a spurious transmission by the UE that is related to the scheduled transmission, wherein the scheduled transmission has a higher priority than the other signal and determining the action comprises determining to cause the spurious transmission to occur outside of a period for the scheduled transmission.

### Claim 5 (depends on 1)

The method of claim 1, wherein the relative priority of the scheduled transmission to the other signal is specified in a wireless communications specification.

### Claim 6 (depends on 1)

The method of claim 1, wherein the indication of the relative priority indicates a type of the other signal.

### Claim 7 (depends on 1)

The method of claim 1, wherein the indication of the relative priority indicates an absolute priority of the other signal.

### Claim 8 (depends on 1)

The method of claim 1, further comprising:
determining the relative priority, based on a schedule and priorities for other signals at times.

### Claim 9 (depends on 1)

The method of claim 1, further comprising:
determining the relative priority based on the indication and at least one of a first period of the scheduled transmission or a second period of the other signal.

### Claim 10 (depends on 1)

The method of claim 1, further comprising:
determining the relative priority based on the indication and at least one of a first power of the scheduled transmission or a second power of the other signal.

### Claim 11 (depends on 1)

The method of claim 1, wherein a guard period occurs immediately before or after a period for the scheduled transmission and determining the action comprises determining to cause the spurious transmission to occur during the guard period.

### Claim 12 (depends on 11)

The method of claim 11, further comprising:
obtaining another indication from the base station that the guard period occurs immediately before or after the period for the scheduled transmission.

### Claim 13 (depends on 1)

The method of claim 1, further comprising:
determining the relative priority based on the indication, a desired beam to be used for the scheduled transmission, and an undesired beam to be used for the spurious transmission.

### Claim 14

A method for wireless communications by a user equipment (UE), comprising:
determining, based on one or more parameters, to transmit a spurious transmission by the UE using an undesired beam to reduce an impact of the spurious transmission;
obtaining an indication of the undesired beam from a base station (BS); and
transmitting the spurious transmission using the undesired beam.

### Claim 15 (depends on 14)

The method of claim 14, wherein the spurious transmission relates to at least one of: changing a transmit power level at the UE, switching one or more radio components at the UE, or signaling transmitted as part of a calibration procedure at the UE.

### Claim 16 (depends on 14)

The method of claim 14, wherein the indication is received in a grant including an indication of transmission resources for the UE to use for the scheduled transmission.

### Claim 17

A method for wireless communications by a user equipment (UE), comprising:
determining, based on one or more parameters, to transmit a spurious transmission by the UE using an undesired beam to reduce an impact of the spurious transmission;
determining the undesired beam based on a beam training operation; and transmitting the spurious transmission using the undesired beam.

### Claim 18 (depends on 14)

The method of claim 14, further comprising:
receiving another indication from the BS that the undesired beam interferes with another transmission; and
determining a new undesired beam in response to the other indication.

### Claim 19 (depends on 18)

The method of claim 18, further comprising:
performing a beam training operation in response to the other indication, wherein determining the new undesired beam is based on the beam training operation.

### Claim 20

An apparatus for wireless communications by a user equipment (UE), comprising:
a processing system configured to:
determine, based at least on a relative priority of a scheduled transmission by the apparatus to another signal, an action to reduce an impact of a spurious transmission by the apparatus that is related to the scheduled transmission;
receive an indication, from a base station (BS), of the relative priority, wherein the indication of the relative priority is received in a grant including an indication of transmission resources for the UE to use for the scheduled transmission; and
cause the apparatus to take the determined action to reduce the impact; and
a memory connected with the processing system.

### Claim 21 (depends on 20)

The apparatus of claim 20, wherein the spurious transmission relates to at least one of changing a transmit power level at the apparatus or switching one or more radio components at the apparatus.

### Claim 22

An apparatus for wireless communications, comprising:
a processing system configured to:
determine, based at least on a relative priority of a scheduled transmission by the apparatus to another signal, an action to reduce an impact of a spurious transmission by the apparatus that is related to the scheduled transmission, wherein the scheduled transmission has a lower priority than the other signal and the processing system is configured to determine the action by determining to cause the apparatus to cause the spurious transmission to occur during a period for the scheduled transmissions;
cause the apparatus to take the determined action to reduce the impact; and
a memory connected with the processing system.

### Claim 23

An apparatus for wireless communications, comprising:
a processing system configured to:
determine, based at least on a relative priority of a scheduled transmission by the apparatus to another signal, an action to reduce an impact of a spurious transmission by the apparatus that is related to the scheduled transmission, wherein the scheduled transmission has a higher priority than the other signal and the processing system is configured to determine the action by determining to cause the apparatus to cause the spurious transmission to occur outside of a period for the scheduled transmission;
cause the apparatus to take the determined action to reduce the impact; and
a memory connected with the processing system.

### Claim 24

An apparatus for wireless communications by a user equipment (UE), comprising:
a processing system configured to:
determine, based on one or more parameters, to cause the apparatus to transmit a spurious transmission by the apparatus using an undesired beam to reduce an impact of the spurious transmission;
obtain an indication of the undesired beam from a base station (BS); and
cause the apparatus to transmit the spurious transmission using the undesired beam; and
a memory connected with the processing system.

### Claim 25 (depends on 24)

The apparatus of claim 24, wherein the spurious transmission relates to at least one of: changing a transmit power level at the apparatus, switching one or more radio components at the apparatus, or transmissions required for a calibration procedure at the apparatus.

### Claim 26

An apparatus for wireless communications, comprising:
a processing system configured to:
determine, based on one or more parameters, to cause the apparatus to transmit a spurious transmission by the apparatus using an undesired beam to reduce an impact of the spurious transmission;
determine the undesired beam based on a beam training operation; and
cause the apparatus to transmit the spurious transmission using the undesired beam; and
a memory connected with the processing system.

### Claim 27 (depends on 24)

The apparatus of claim 24, wherein the processing system is further configured to:
obtain another indication from the BS that the undesired beam interferes with another transmission; and
determine a new undesired beam in response to the other indication.
