# US 12,224,832 B2 · Apparatus and method of transmitting a CSI report on a transmission occasion

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- Number: US 12,224,832 B2
- Document ID: US12224832B2
- Status: Granted
- Kind: B2
- Application number: 18/023,734
- Filed: 2021-09-03
- Published: 2024-01-11
- Granted: 2025-02-11
- Earliest claimed: 2020-09-04
- Assignees: Lenovo (Singapore) Pte. Ltd.
- Applicants: Lenovo (Singapore) PTE. LTD
- Inventors: Abir Ben Hadj Fredj; Ankit Bhamri; Karthikeyan Ganesan; Ravi Kuchibhotla
- Web page: https://patentgrep.com/patent/US12224832B2

## CPC

- H04B 7/0626: {Channel coefficients, e.g. channel state information [CSI]}
- H04B 7/063: {Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection}
- H04B 7/0639: {Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection}
- H04W 52/0229: {where the received signal is a wanted signal}
- H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX]
- H04B 7/0632: {Channel quality parameters, e.g. channel quality indicator [CQI]}
- H04L 1/0026: {Transmission of channel quality indication}
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04W 52/0232: {according to average transmission signal activity}
- Y02D 30/70: in wireless communication networks
- H04B: TRANSMISSION
- 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)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

A WUS monitoring configuration can be received (1210) from a network. A DRX mode configuration comprising at least an active period can be received (1220). At least one CSI reporting configuration can be received (1230). The at least one CSI reporting configuration can configure transmission occasions for transmission of at least one CSI report to the network outside the active period. A time offset configuration for CSI transmission outside the active period can be received (1240). A CSI report can be transmitted (1250) on a transmission occasion of the configured transmission occasions. The transmission occasion can be within the configured time offset from a WUS monitoring occasion. The WUS monitoring occasion can be outside the active period.

## Claims

### Claim 1

A user equipment (UE) for wireless communication, comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the UE to:
receive, from a network entity (NE), a wake up signal monitoring configuration;
receive a discontinuous reception mode configuration comprising at least an active period;
receive at least one channel state information reporting configuration that configures transmission occasions for transmission of at least one channel state information report to the NE outside the active period;
receive a time offset configuration that configures a time offset for channel state information transmission outside the active period; and
transmit a channel state information report on a transmission occasion of the transmission occasions, wherein the transmission occasion is within the time offset from a wake up signal monitoring occasion, and wherein the wake up signal monitoring occasion is outside the active period.

### Claim 2 (depends on 1)

The UE of claim 1, wherein the at least one processor is configured to cause the UE to:
receive a wake up signal in an additional wake up signal monitoring occasion; and
activate channel state information reporting based on the at least one channel state information reporting configuration and for a number of transmission occasions following the wake up signal.

### Claim 3 (depends on 1)

The UE of claim 1, wherein a semi-persistent channel state information report transmission is activated on one or more transmission occasions that are within the time offset before a start of the wake up signal monitoring occasion.

### Claim 4 (depends on 1)

The UE of claim 1, wherein to receive the time offset configuration, the at least one processor is configured to cause the UE to:
receive a first time offset value and a second time offset value; and
activate semi-persistent channel state information report transmission on one or more transmission occasions that are within the first time offset value before a start of the wake up signal monitoring occasion and that are outside of a threshold distance from the second time offset value before the start of the wake up signal monitoring occasion.

### Claim 5 (depends on 4)

The UE of claim 4, wherein at least one of the first time offset value or the second time offset value is based on at least one channel state information report measurement value that is to be reported.

### Claim 6 (depends on 5)

The UE of claim 5, wherein the at least one processor is configured to cause the UE to receive, based on the at least one channel state information report measurement value including a channel state information reference signal resource indicator reference signal received power, a wake up signal transmitted on a highest reported beam included in the channel state information report.

### Claim 7 (depends on 1)

The UE of claim 1, wherein the at least one processor is configured to cause the UE to:
receive at least one channel state information reference signal in a plurality of beams; and
determine a best beam of the plurality of beams based on the at least one channel state information reference signal, wherein the channel state information report includes a channel state information reference signal resource indicator reference signal received power of a channel state information reference signal of the best beam.

### Claim 8 (depends on 1)

The UE of claim 1, wherein the at least one processor is configured to cause the UE to:
monitor for a wake up signal over a plurality of beams and over a plurality of wake up signal monitoring occasions; and
receive the wake up signal on a beam of the plurality of beams and on at least one wake up signal monitoring occasion of the plurality of wake up signal monitoring occasions, wherein the channel state information report includes an indication of the beam on which the wake up signal was received.

### Claim 9 (depends on 1)

The UE of claim 1, wherein the at least one processor is configured to cause the UE to:
receive at least one channel state information reference signal;
measure a reference signal received power based on the at least one channel state information reference signal; and
compare the reference signal received power to a threshold value, wherein transmitting the channel state information report is based on the reference signal received power being above the threshold value.

### Claim 10 (depends on 1)

The UE of claim 1, wherein a wake up signal associated with the wake up signal monitoring configuration comprises downlink control information with downlink control information format 2_6.

### Claim 11 (depends on 1)

The UE of claim 1, wherein the at least one processor is configured to cause the UE to transmit the channel state information report on a subset of transmission occasions of the transmission occasions.

### Claim 12

A method performed by a user equipment (UE), the method comprising:
receiving, from a network entity (NE), a wake up signal monitoring configuration;
receiving a discontinuous reception mode configuration comprising at least an active period;
receiving at least one channel state information reporting configuration that configures transmission occasions for transmission of at least one channel state information report to the NE outside the active period;
receiving a time offset configuration that configures a time offset for channel state information transmission outside the active period; and
transmitting a channel state information report on a transmission occasion of the transmission occasions, wherein the transmission occasion is within the time offset from a wake up signal monitoring occasion, and wherein the wake up signal monitoring occasion is outside the active period.

### Claim 13

A network entity (NE) for wireless communication, comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the NE to:
transmit a wake up signal monitoring, configuration;
transmit at least one channel state information reporting configuration that configures transmission occasions for transmission of at least one channel state information report;
transmit a time offset configuration that configures a time offset for channel state information report transmission; and
receive a channel state information report on a transmission occasion of the transmission occasions, wherein the transmission occasion is within the time offset from a wake up signal monitoring occasion.

### Claim 14 (depends on 13)

The NE of claim 13, wherein the at least one processor is configured to cause the NE to transmit a wake up signal on a plurality of beams, wherein the channel state information report includes an indication of a beam of the plurality of beams on which the wake up signal was received.

### Claim 15 (depends on 13)

The NE of claim 13, wherein the at least one processor is configured to cause the NE to:
transmit at least one channel state information reference signal on a plurality of beams;
receive a channel state information report corresponding to at least one beam of the plurality of beams, the channel state information report including a respective channel state information reference signal resource indicator reference signal received power for the plurality of beams; and
transmit a wake up signal on a beam of the plurality of beams with a highest channel state information reference signal resource indicator reference signal received power of the respective channel state information reference signal resource indicator reference signal received power for the plurality of beams.

### Claim 16

A processor for wireless communication, comprising:
at least one memory; and
at least one controller coupled with the at least one memory and configured to cause the processor to:
receive a wake up signal monitoring configuration entity (NE);
receive a discontinuous reception mode configuration comprising at least an active period;
receive at least one channel state information reporting configuration that configures transmission occasions for transmission of at least one channel state information report to the NE outside the active period;
receive a time offset configuration that configures a time offset for channel state information transmission outside the active period; and
transmit a channel state information report on a transmission occasion of the transmission occasions, wherein the transmission occasion is within the time offset from a wake up signal monitoring occasion, and wherein the wake up signal monitoring occasion is outside the active period.

### Claim 17 (depends on 16)

The processor of claim 16, wherein the at least one controller is configured to cause the processor to:
receive a wake up signal in an additional wake up signal monitoring occasion; and
activate channel state information reporting based on the at least one channel state information reporting configuration and for a number of transmission occasions following the wake up signal.

### Claim 18 (depends on 16)

The processor of claim 16, wherein a semi-persistent channel state information report transmission is activated on one or more transmission occasions that are within the time offset before a start of the wake up signal monitoring occasion.

### Claim 19 (depends on 16)

The processor of claim 16, wherein, to receive the time offset configuration, the at least one controller is configured to cause the processor to:
receive a first time offset value and a second time offset value; and
activate semi-persistent channel state information report transmission on one or more transmission occasions that are within the first time offset value before a start of the wake up signal monitoring occasion and that are outside of a threshold distance from the second time offset value before the start of the wake up signal monitoring occasion.

### Claim 20 (depends on 19)

The processor of claim 19, wherein at least one of the first time offset value or the second time offset value is based on at least one channel state information report measurement value that is to be reported.
