# US 11,909,693 B2 · Channel state information report transmission method and terminal

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- Number: US 11,909,693 B2
- Document ID: US11909693B2
- Status: Granted
- Kind: B2
- Application number: 17/982,797
- Filed: 2022-11-08
- Published: 2023-03-02
- Granted: 2024-02-20
- Earliest claimed: 2018-02-12
- Assignees: Vivo Mobile Communication Co., Ltd.
- Applicants: Vivo Mobile Communication Co., Ltd.
- Inventors: Yang Song; Peng Sun
- Web page: https://patentgrep.com/patent/US11909693B2

## CPC

- H04L 1/0026: {Transmission of channel quality indication}
- H04L 5/0057: {Physical resource allocation for CQI}
- H04L 1/00: Arrangements for detecting or preventing errors in the information received {(correcting synchronisation H04L7/00)}
- 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)}
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04L 5/001: {the frequencies being arranged in component carriers}
- H04L 5/023: {Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA] (multicarrier modulation H04L27/2601)}
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- 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

The present disclosure provides a channel state information report transmission method and a terminal. The channel state information report transmission method includes: obtaining an allocation rule of a channel state information (CSI) report transmitted on a physical uplink control channel (PUCCH), where the allocation rule is configured by a network device or predefined in a protocol; when there is a collision between at least two CSI reports, allocating some or all of CSI reports with collisions to a first CSI PUCCH according to the allocation rule; transmitting the some or all of CSI reports with collisions. The first CSI PUCCH is configured to transmit the some or all of CSI reports with collisions.

## Claims

### Claim 1

A channel state information report transmission method, applied to a terminal, comprising:
obtaining an allocation rule of a channel state information (CSI) report transmitted on a physical uplink control channel (PUCCH) wherein the allocation rule is configured by a network device or predefined in a protocol;
when at least two CSI reports collide, multiplexing partial or all of CSI reports with collisions to one first CSI PUCCH selected from configured J first CSI PUCCHs, according to the allocation rule;
transmitting the partial or all of CSI reports with collisions;
wherein the multiplexing partial or all of CSI reports with collisions to one first CSI PUCCH selected from configured J first CSI PUCCHs, according to the allocation rule, comprises:
if one with a smallest resource size that is capable of accommodating the resources required by the at least two CSI reports, is obtained from the configured J first CSI PUCCHs, multiplexing all the at least two CSI reports to the first CSI PUCCH with the smallest resource size;
if the one with the smallest resource size that is capable of accommodating the resources required by the at least two CSI reports, is not obtained from the configured J first CSI PUCCHs, sequentially multiplexing, according to a first order of the CSI reports, partial of the at least two CSI reports to a first CSI PUCCH with a largest resource size obtained from the configured J first CSI PUCCHs, until the first CSI PUCCH with the largest resource size has been fully occupied,
wherein the first order is obtained by arranging the at least two CSI reports in descending order according to CSI report priorities.

### Claim 2 (depends on 1)

The transmission method according to claim 1, wherein when transmitting the partial or all of CSI reports with collisions, the transmission method further comprises at least one of the following steps:
when the first CSI PUCCH and a PUCCH carrying hybrid automatic repeat request acknowledgement (HARQ-ACK) collide, transmitting the HARQ-ACK on the first CSI PUCCH;
when the first CSI PUCCH and a physical uplink shared channel (PUSCH) collide, transmitting CSI reports of the first CSI PUCCH on the PUSCH;
when the first CSI PUCCH and a sounding reference signal (SRS) collide, determining to transmit the first CSI PUCCH or the SRS, according to information carried by the first CSI PUCCH, periodicity characteristics of the first CSI PUCCH and periodicity characteristics of the SRS.

### Claim 3 (depends on 1)

The transmission method according to claim 1, wherein encoding modes of the at least two CSI reports with collisions comprise at least one of the following:
the at least two CSI reports with collisions are separately encoded in the first CSI PUCCH;
first parts of the at least two CSI reports with collisions are jointly encoded, and second parts of the at least two CSI reports with collisions are jointly encoded.

### Claim 4

A terminal, comprising: a processor, a memory, and a computer program stored on the memory and executable on the processor; wherein the computer program is executed by the processor to
obtain an allocation rule of a channel state information (CSI) report transmitted on a physical uplink control channel (PUCCH) wherein the allocation rule is configured by a network device or predefined in a protocol;
when at least two CSI reports collide, multiplex partial or all of CSI reports with collisions to one first CSI PUCCH selected from configured J first CSI PUCCHs, according to the allocation rule;
transmit the partial or all of CSI reports with collisions;
wherein the computer program is further executed by the processor to:
if one with a smallest resource size that is capable of accommodating the resources required by the at least two CSI reports, is obtained from the configured J first CSI PUCCHs, multiplex all the at least two CSI reports to the first CSI PUCCH with the smallest resource size;
if the one with the smallest resource size that is capable of accommodating the resources required by the at least two CSI reports, is not obtained from the configured J first CSI PUCCHs, sequentially multiplex, according to a first order of the CSI reports, partial of the at least two CSI reports to a first CSI PUCCH with a largest resource size obtained from the configured J first CSI PUCCHs, until the first CSI PUCCH with the largest resource size has been fully occupied, wherein the first order is obtained by arranging the at least two CSI reports in descending order according to CSI report priorities.

### Claim 5 (depends on 4)

The terminal according to claim 4, wherein when transmitting the partial or all of CSI reports with collisions, the processor is configured to perform at least one of the following:
when the first CSI PUCCH and a PUCCH carrying hybrid automatic repeat request acknowledgement (HARQ-ACK) collide, transmit the HARQ-ACK on the first CSI PUCCH;
when the first CSI PUCCH and a physical uplink shared channel (PUSCH) collide, transmit CSI reports of the first CSI PUCCH on the PUSCH;
when the first CSI PUCCH and a sounding reference signal (SRS) collide, determine to transmit the first CSI PUCCH or the SRS, according to information carried by the first CSI PUCCH, periodicity characteristics of the first CSI PUCCH and periodicity characteristics of the SRS.

### Claim 6 (depends on 4)

The terminal according to claim 4, wherein the first CSI PUCCH is used when CSI reports transmitted on PUCCH collide;
when CSI reports transmitted on PUCCH do not collide, the processor is configured to allocate resources occupied by the first CSI PUCCH to physical uplink shared channel (PUSCH), sounding reference signal (SRS), or other PUCCH except for the first CSI PUCCH.

### Claim 7

A non-transitory computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:
obtaining an allocation rule of a channel state information (CSI) report transmitted on a physical uplink control channel (PUCCH) wherein the allocation rule is configured by a network device or predefined in a protocol;
when at least two CSI reports collide, multiplexing partial or all of CSI reports with collisions to one first CSI PUCCH selected from configured J first CSI PUCCHs, according to the allocation rule;
transmitting the partial or all of CSI reports with collisions;
wherein the multiplexing partial or all of CSI reports with collisions to one first CSI PUCCH selected from configured J first CSI PUCCHs, according to the allocation rule, comprises:
if one with a smallest resource size that is capable of accommodating the resources required by the at least two CSI reports, is obtained from the configured J first CSI PUCCHs, multiplexing all the at least two CSI reports to the first CSI PUCCH with the smallest resource size;
if the one with the smallest resource size that is capable of accommodating the resources required by the at least two CSI reports, is not obtained from the configured J first CSI PUCCHs, sequentially multiplexing, according to a first order of the CSI reports, partial of the at least two CSI reports to a first CSI PUCCH with a largest resource size obtained from the configured J first CSI PUCCHs, until the first CSI PUCCH with the largest resource size has been fully occupied, wherein the first order is obtained by arranging the at least two CSI reports in descending order according to CSI report priorities.

### Claim 8 (depends on 7)

The non-transitory computer-readable storage medium according to claim 7, wherein when transmitting the partial or all of CSI reports with collisions, and the computer program is executed by the processor, at least one of the following steps are further implemented:
when the first CSI PUCCH and a PUCCH carrying hybrid automatic repeat request acknowledgement (HARQ-ACK) collide, transmitting the HARQ-ACK on the first CSI PUCCH;
when the first CSI PUCCH and a physical uplink shared channel (PUSCH) collide, transmitting CSI reports of the first CSI PUCCH on the PUSCH;
when the first CSI PUCCH and a sounding reference signal (SRS) collide, determining to transmit the first CSI PUCCH or the SRS, according to information carried by the first CSI PUCCH, periodicity characteristics of the first CSI PUCCH and periodicity characteristics of the SRS.

### Claim 9 (depends on 7)

The non-transitory computer-readable storage medium according to claim 7, wherein encoding modes of the at least two CSI reports with collisions comprise at least one of the following:
the at least two CSI reports with collisions are separately encoded in the first CSI PUCCH;
first parts of the at least two CSI reports with collisions are jointly encoded, and second parts of the at least two CSI reports with collisions are jointly encoded.

### Claim 10 (depends on 1)

The transmission method according to claim 1, wherein when resource sizes of at least two first CSI PUCCHs are different, before multiplexing all the at least two CSI reports to the first CSI PUCCH with the smallest resource size, the transmission method further comprises:
obtaining the first CSI PUCCH with the smallest resource size that is capable of accommodating the resources required by the at least two CSI reports from the configured J first CSI PUCCHs, in such a manner that the resource size of the first CSI PUCCH with the smallest resource size, is greater than the resources required by the at least two CSI reports with collisions and is closest to the resources required by the at least two CSI reports with collisions.

### Claim 11 (depends on 1)

The transmission method according to claim 1, the transmission method further comprises using the first CSI PUCCH when CSI reports transmitted on PUCCH collide:
when CSI reports transmitted on PUCCH do not collide, allocating resources occupied by the first CSI PUCCH to physical uplink shared channel (PUSCH), sounding reference signal (SRS), or other PUCCH except for the first CSI PUCCH.

### Claim 12 (depends on 4)

The terminal according to claim 4, wherein when resource sizes of at least two first CSI PUCCHs are different, before multiplexing all the at least two CSI reports to the first CSI PUCCH with the smallest resource size, the processor is further configured to:
obtain the first CSI PUCCH with the smallest resource size that is capable of accommodating the resources required by the at least two CSI reports from the configured J first CSI PUCCHs, in such a manner that the resource size of the first CSI PUCCH with the smallest resource size, is greater than the resources required by the at least two CSI reports with collisions and is closest to the resources required by the at least two CSI reports with collisions.

### Claim 13 (depends on 4)

The terminal according to claim 4, wherein encoding modes of the at least two CSI reports with collisions comprise at least one of the following:
the at least two CSI reports with collisions are separately encoded in the first CSI PUCCH;
first parts of the at least two CSI reports with collisions are jointly encoded, and second parts of the at least two CSI reports with collisions are jointly encoded.

### Claim 14 (depends on 7)

The non-transitory computer-readable storage medium according to claim 7, wherein when resource sizes of at least two first CSI PUCCHs are different, before multiplexing all the at least two CSI reports to the first CSI PUCCH with the smallest resource size, the following steps are further implemented:
obtaining the first CSI PUCCH with the smallest resource size that is capable of accommodating the resources required by the at least two CSI reports from the configured J first CSI PUCCHs, in such a manner that the resource size of the first CSI PUCCH with the smallest resource size, is greater than the resources required by the at least two CSI reports with collisions and is closest to the resources required by the at least two CSI reports with collisions.

### Claim 15 (depends on 7)

The non-transitory computer-readable storage medium according to claim 7, wherein the following steps are further implemented: using the first CSI PUCCH when CSI reports transmitted on PUCCH collide:
when CSI reports transmitted on PUCCH do not collide, allocating resources occupied by the first CSI PUCCH to physical uplink shared channel (PUSCH), sounding reference signal (SRS), or other PUCCH except for the first CSI PUCCH.