# US 2021/0242985 A1 · Per bandwidth part frequency hopping

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- Number: US 2021/0242985 A1
- Document ID: US20210242985A1
- Status: Published application
- Kind: A1
- Application number: 17/160,709
- Filed: 2021-01-28
- Published: 2021-08-05
- Earliest claimed: 2020-02-03
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Wooseok NAM; Peter Pui Lok ANG; Iyab Issam SAKHNINI; Tao LUO; Juan MONTOJO
- Web page: https://patentgrep.com/patent/US20210242985A1

## CPC

- H04B 1/7136: Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform
- H04L 5/0012: {Hopping in multicarrier systems}
- H04B 1/7143: Arrangements for generation of hop patterns
- H04B 7/0626: {Channel coefficients, e.g. channel state information [CSI]}
- H04L 5/001: {the frequencies being arranged in component carriers}
- 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 5/0092: {Indication of how the channel is divided}
- H04W 8/24: Transfer of terminal data
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04L 5/16: Half-duplex systems; Simplex/duplex switching; Transmission of break signals {non-automatically inverting the direction of transmission}
- H04B: TRANSMISSION
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Certain aspects of the subject matter described in this disclosure can be implemented in a method for wireless communication by a user equipment (UE). The method generally includes receiving, from a network entity, a configuration for a first bandwidth part (BWP) configured with frequency hopping, determining a frequency location of the first BWP during each of a plurality of frequency hops for the frequency hopping based on a reference frequency location, and communicating with the network entity via the first BWP and in accordance with the configuration.

## Claims

### Claim 1

A method for wireless communication by a user-equipment (UE), comprising:
receiving, from a network entity, a configuration for a first bandwidth part (BWP) configured with frequency hopping;
determining a frequency location of the first BWP during each of a plurality of frequency hops for the frequency hopping based on a reference frequency location; and
communicating with the network entity via the first BWP and in accordance with the configuration.

### Claim 2 (depends on 1)

The method of claim 1, wherein the frequency location of the first BWP during each of the plurality of frequency hops is determined based on a fixed frequency offset from the reference frequency location, wherein the frequency location of the first BWP during each of the plurality of frequency hops is determined based on a product of the fixed frequency offset and an integer equal to or greater than 1.

### Claim 3 (depends on 1)

The method of claim 1, wherein the frequency location of the first BWP during each of the plurality of frequency hops is determined based on a sequence of frequency offsets from the reference frequency location, each of the frequency offsets being used to determine the frequency location during one of the plurality of frequency hops.

### Claim 4 (depends on 1)

The method of claim 1, further comprising determining at least one configuration parameter for each of the plurality of frequency hops based on a configured sequence of the configuration parameters, wherein the at least one configuration parameter comprises at least one of one or more beamforming parameters, one or more spatial precoding parameters, or one or more transmit power control parameters.

### Claim 5 (depends on 1)

The method of claim 1, further comprising receiving control information in the first BWP for allocation of frequency-domain resources for the communication, wherein the allocation of the frequency-domain resources is indicated using a relative location of the frequency-domain resources with respect to the reference frequency location in the first BWP.

### Claim 6 (depends on 1)

The method of claim 1, wherein a configuration of frequency-domain resources associated with the first BWP is with respect to the reference frequency location in the first BWP.

### Claim 7 (depends on 1)

The method of claim 1, wherein the configuration for the first BWP indicates at least one of a duration associated with each of the plurality of frequency hops, a gap between adjacent frequency hops of the plurality of frequency hops, or a pattern associated with the frequency hopping.

### Claim 8 (depends on 1)

The method of claim 1, further comprising transmitting an indication of a capability or preference of the UE for the frequency hopping, wherein the configuration is in accordance with the capability or preference.

### Claim 9 (depends on 1)

The method of claim 1, further comprising:
receiving a configuration for a default BWP configured without frequency hopping;
detecting inactivity on the first BWP for a configured time duration; and
switching to monitoring the default BWP based on detection of the inactivity.

### Claim 10 (depends on 1)

The method of claim 1, further comprising:
receiving a configuration for a second BWP configured without frequency hopping; and
receiving control signaling via the second BWP, the control signaling indicating resources to be monitored on the first BWP, wherein the indication of the resources triggers the frequency hopping for the first BWP.

### Claim 11 (depends on 1)

The method of claim 1, wherein the reception of the configuration for the first BWP triggers the frequency hopping for the first BWP.

### Claim 12 (depends on 1)

The method of claim 1, further comprising receiving control information via the first BWP during a first one of the plurality of frequency hops, the control information allocating resources for the communication via the first BWP during a second one of the plurality of frequency hops.

### Claim 13 (depends on 1)

The method of claim 1, further comprising receiving control information allocating resources for a first data transmission during a first one of the plurality of frequency hops and a second data transmission during a second one of the plurality of frequency hops of the first BWP, the first data transmission being the same as, or a different redundancy version of, the second data transmission.

### Claim 14 (depends on 1)

The method of claim 1, further comprising:
receiving, via the first BWP during a first one of the plurality of frequency hops, control information triggering measurement of at least one channel state information (CSI)-reference signal (RS);
performing the measurement based on the at least one CSI-RS received via the first BWP during a second one of the plurality of frequency hops; and
transmitting a report of the measurement via the first BWP during a third one of the plurality of frequency hops.

### Claim 15 (depends on 1)

The method of claim 1, further comprising:
receiving data via the first BWP during a first one of the plurality of frequency hops; and
transmitting feedback via the first BWP during a second one of the plurality of frequency hops indicating whether data has been successfully received by the UE.

### Claim 16 (depends on 1)

The method of claim 1, further comprising:
performing at least one measurement based on at least one channel state information (CSI)-reference signal (RS) received via the first BWP during a first one of the plurality of frequency hops; and
transmitting a report of the measurement via the first BWP during a second one of the plurality of frequency hops.

### Claim 17

A method for wireless communication, comprising:
transmitting, to a user-equipment (UE), a configuration for a first bandwidth part (BWP) configured with frequency hopping;
determining a frequency location of the first BWP during each of a plurality of frequency hops for the frequency hopping based on a reference frequency location; and
communicating with the UE via the first BWP and in accordance with the configuration.

### Claim 18 (depends on 17)

The method of claim 17, wherein the frequency location of the first BWP during each of the plurality of frequency hops is determined based on a fixed frequency offset from the reference frequency location, wherein the frequency location of the first BWP during each of the plurality of frequency hops is determined based on product of the fixed frequency offset and an integer equal to or greater than 1.

### Claim 19 (depends on 17)

The method of claim 17, wherein the frequency location of the first BWP during each of the plurality of frequency hops is determined based on a sequence of frequency offsets from the reference frequency location, each of the frequency offsets being used to determine the frequency location during one of the plurality of frequency hops.

### Claim 20 (depends on 17)

The method of claim 17, further comprising transmitting control information in the first BWP for allocation of frequency-domain resources for the communication, wherein the allocation of the frequency-domain resources is indicated using a relative location of the frequency-domain resources with respect to the reference frequency location in the first BWP.

### Claim 21 (depends on 17)

The method of claim 17, wherein a configuration of frequency-domain resources associated with the first BWP is with respect to the reference frequency location in the first BWP.

### Claim 22 (depends on 17)

The method of claim 17, wherein the configuration for the first BWP indicates at least one of a duration associated with each of the plurality of frequency hops, a gap between adjacent frequency hops of the plurality of frequency hops, or a pattern associated with the frequency hopping.

### Claim 23 (depends on 17)

The method of claim 17, further comprising receiving an indication of a capability or preference of the UE for the frequency hopping, wherein the configuration is in accordance with the capability or preference.

### Claim 24 (depends on 17)

The method of claim 17, further comprising transmitting a configuration for a default BWP configured without frequency hopping, wherein the UE switches to monitoring the default BWP based on detection of inactivity on the first BWP for a configured time duration.

### Claim 25 (depends on 17)

The method of claim 17, further comprising:
transmitting a configuration for a second BWP configured without frequency hopping; and
transmitting control signaling via the second BWP, the control signaling indicating resources to be monitored on the first BWP, wherein the indication of the resources triggers the frequency hopping for the first BWP at the UE.

### Claim 26 (depends on 17)

The method of claim 17, further comprising transmitting control information via the first BWP during a first one of the plurality of frequency hops, the control information allocating resources for the communication via the first BWP during a second one of the plurality of frequency hops.

### Claim 27 (depends on 17)

The method of claim 17, further comprising transmitting control information allocating resources for a first data transmission during a first one of the plurality of frequency hops and a second data transmission during a second one of the plurality of frequency hops of the first BWP, the first data transmission being the same as, or a different redundancy version of, the second data transmission.

### Claim 28 (depends on 17)

The method of claim 17, further comprising:
transmitting, via the first BWP during a first one of the plurality of frequency hops, control information triggering measurement of at least one channel state information (CSI)-reference signal (RS), wherein the measurement is performed based on the at least one CSI-RS transmitted via the first BWP during a second one of the plurality of frequency hops; and
receiving a report of the measurement via the first BWP during a third one of the plurality of frequency hops.

### Claim 29 (depends on 17)

The method of claim 17, further comprising:
transmitting data via the first BWP during a first one of the plurality of frequency hops; and
receiving feedback via the first BWP during a second one of the plurality of frequency hops indicating whether data has been successfully received by the UE.

### Claim 30 (depends on 17)

The method of claim 17, further comprising receiving a report of at least one measurement performed based on at least one channel state information (CSI)-reference signal (RS) transmitted via the first BWP during a first one of the plurality of frequency hops, wherein the report is received via the first BWP during a second one of the plurality of frequency hops.
