# US 10,485,016 B2 · Network configured uplink control feedback for 5G new radio (NR)

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- Number: US 10,485,016 B2
- Document ID: US10485016B2
- Status: Granted
- Kind: B2
- Application number: 15/934,801
- Filed: 2018-03-23
- Published: 2018-07-26
- Granted: 2019-11-19
- Earliest claimed: 2016-11-04
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Wei Zeng; Jing Jiang; Wanshi Chen; Tingfang Ji
- Web page: https://patentgrep.com/patent/US10485016B2

## CPC

- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04L 1/12: by using return channel
- H04L 1/1887: {Scheduling and prioritising arrangements}
- H04L 1/1896: {ARQ related signaling}
- H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)}
- H04L 5/0092: {Indication of how the channel is divided}
- H04W 72/1215: {for collaboration of different radio technologies}
- H04W 72/1268: of uplink data flows
- H04L 1/1854: {Scheduling and prioritising arrangements}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04W 52/365: {Power headroom reporting}
- Y02D 30/70: in wireless communication networks
- 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

Some aspects of the disclosure provide for wireless communication systems in which scheduling information is transmitted to a scheduled entity to schedule transmission of uplink feedback control information by the scheduled entity. The feedback control information may be transmitted in short uplink control bursts or long uplink bursts. Selection between short uplink control bursts and long uplink bursts may be based on power headroom at the scheduled entity, interference in the short uplink control burst or the long uplink burst, loading of the short uplink control burst or the long uplink burst or processing capability of the scheduled entity.

## Claims

### Claim 1

A method of wireless communication operable at a scheduling entity, comprising:
selecting a short uplink control burst to carry feedback corresponding to a long downlink burst transmitted in a same slot as the short uplink control burst when a scheduled entity can be expected to decode the long downlink burst before completion of transmission of the short uplink control burst;
selecting an other uplink control burst in a later-provided slot to carry the feedback when the scheduled entity is not expected to decode the long downlink burst before completion of transmission of the short uplink control burst;
transmitting scheduling information operative to schedule transmission of uplink control information by the scheduled entity; and
transmitting a short downlink control burst in at least one slot that provides for a long uplink burst,
wherein the scheduling information is configured to cause the scheduled entity to use the selected uplink control burst for transmission of the feedback.

### Claim 2 (depends on 1)

The method of claim 1, and further comprising:
defining first power control settings to be used by the scheduled entity for transmission of uplink control information in short uplink control bursts; and
defining second power control settings to be used by the scheduled entity for transmission of uplink control information in long uplink control bursts.

### Claim 3 (depends on 2)

The method of claim 2, and further comprising:
defining a fixed power offset to be applied by the scheduled entity at one or more operating points to configure the first power control settings and the second power control settings.

### Claim 4 (depends on 2)

The method of claim 2, and further comprising:
transmitting control information operative to cause the scheduled entity to use the first power control settings when transmitting the uplink control information in the short uplink control burst, and to use the second power control settings when transmitting the uplink control information in the long uplink burst.

### Claim 5 (depends on 2)

The method of claim 2, wherein different power control settings for transmission of uplink control information in short uplink control bursts and transmission of uplink control information in short uplink control bursts are defined when the scheduling entity and the scheduled entity implement a closed loop power control scheme.

### Claim 6 (depends on 2)

The method of claim 2, wherein different power control settings for transmission of uplink control information in short uplink control bursts and transmission of uplink control information in short uplink control bursts are defined when the scheduling entity and the scheduled entity implement an open loop power control scheme.

### Claim 7 (depends on 2)

The method of claim 2, and further comprising:
configuring the second power control settings to cause power to be aggregated over a longer period of time in the long uplink control bursts than in short uplink control bursts.

### Claim 8 (depends on 1)

The method of claim 1, and further comprising:
receiving first uplink control information associated with a first long downlink burst provided in a first slot in an uplink control burst provided in a second slot that is transmitted after the first slot.

### Claim 9 (depends on 8)

The method of claim 8, wherein the first slot is one of a plurality of slots provided without an uplink control burst, and further comprising:
receiving aggregated control information in the uplink control burst provided in the second slot, wherein the aggregated control information includes control information associated with each of the plurality of slots.

### Claim 10 (depends on 9)

The method of claim 9, and further comprising:
configuring the scheduled entity with a feedback delay for each of the each of the plurality of slots, wherein the feedback delay corresponds to a time between each slot and the uplink control burst provided in the second slot.

### Claim 11 (depends on 9)

The method of claim 9, and further comprising:
configuring the scheduled entity with information identifying location of the second slot relative to the plurality of slots.

### Claim 12 (depends on 11)

The method of claim 11, wherein the uplink control burst provided in the second slot is a short uplink control burst.

### Claim 13

A scheduling entity configured for wireless communication, comprising:
a communication interface configured to communicate wirelessly with one or more scheduled entities;
a memory comprising executable code; and
a processor coupled to the communication interface and the memory,
wherein the processor is configured by the executable code to:
select a short uplink control burst to carry feedback corresponding to a long downlink burst transmitted in a same slot as the short uplink control burst when a scheduled entity can be expected to decode the long downlink burst before completion of transmission of the short uplink control burst;
select an other uplink control burst in a later-provided slot to carry the feedback when the scheduled entity is not expected to decode the long downlink burst before completion of transmission of the short uplink control burst;
transmit scheduling information operative to schedule transmission of uplink control information by the scheduled entity; and
transmit a short downlink control burst in at least one slot that provides for a long uplink burst,
wherein the scheduling information is configured to cause the scheduled entity to use the selected uplink control burst for transmission of feedback.

### Claim 14 (depends on 13)

The scheduling entity of claim 13, wherein the processor is further configured by the executable code to:
define first power control settings to be used by the scheduled entity for transmission of uplink control information in short uplink control bursts; and
define second power control settings to be used by the scheduled entity for transmission of uplink control information in long uplink control bursts.

### Claim 15 (depends on 14)

The scheduling entity of claim 14, wherein the processor is further configured by the executable code to:
define a fixed power offset to be applied by the scheduled entity at one or more operating points to configure the first power control settings and the second power control settings.

### Claim 16 (depends on 14)

The scheduling entity of claim 14, wherein the processor is further configured by the executable code to:
configure the second power control settings to cause power to be aggregated over a longer period of time in the long uplink control bursts than in short uplink control bursts.

### Claim 17 (depends on 13)

The scheduling entity of claim 13, wherein the processor is further configured by the executable code to:
receive first uplink control information associated with a first long downlink burst provided in a first slot in an uplink control burst provided in a second slot that is transmitted after the first slot.

### Claim 18 (depends on 17)

The scheduling entity of claim 17, wherein the first slot is one of a plurality of slots provided without an uplink control burst, and wherein the processor is further configured by the executable code to:
cause the scheduled entity to aggregate control information associated with each of the plurality of slots to obtain aggregated control information; and
cause the scheduled entity to transmit the aggregated control information in the uplink control burst provided in the second slot.

### Claim 19 (depends on 18)

The scheduling entity of claim 18, and further comprising:
configure the scheduled entity with a feedback delay for each of the each of the plurality of slots, wherein the feedback delay corresponds to a time between each slot and the uplink control burst provided in the second slot.

### Claim 20 (depends on 18)

The scheduling entity of claim 18, and further comprising:
configure the scheduled entity with information identifying location of the second slot relative to the plurality of slots.

### Claim 21

A non-transitory computer-readable storage medium comprising executable code for causing a scheduling entity to:
select a short uplink control burst to carry feedback corresponding to a long downlink burst transmitted in a same slot as the short uplink control burst when a scheduled entity can be expected to decode the long downlink burst before completion of transmission of the short uplink control burst;
select an other uplink control burst in a later-provided slot to carry the feedback when the scheduled entity is not expected to decode the long downlink burst before completion of transmission of the short uplink control burst;
transmit scheduling information operative to schedule transmission of uplink control information by the scheduled entity; and
transmit a short downlink control burst in at least one slot that provides for a long uplink burst,
wherein the scheduling information is configured to cause the scheduled entity to use the selected uplink control burst for transmission of feedback.

### Claim 22 (depends on 21)

The computer-readable storage medium of claim 21, and further comprising code for causing the scheduling entity to:
define first power control settings to be used by the scheduled entity for transmission of uplink control information in short uplink control bursts; and
define second power control settings to be used by the scheduled entity for transmission of uplink control information in long uplink control bursts.

### Claim 23 (depends on 22)

The computer-readable storage medium of claim 22, and further comprising code for causing the scheduling entity to:
define a fixed power offset to be applied by the scheduled entity at one or more operating points to configure the first power control settings and the second power control settings.

### Claim 24 (depends on 22)

The computer-readable storage medium of claim 22, and further comprising code for causing the scheduling entity to:
configure the second power control settings to cause power to be aggregated over a longer period of time in the long uplink control bursts than in short uplink control bursts.

### Claim 25

An apparatus adapted to communicate as a scheduling entity in a wireless network, comprising:
means for identifying an uplink control burst to carry feedback corresponding to a long downlink burst, the means for identifying the uplink control burst being configured to:
select a short uplink control burst provided in a same slot as the long downlink burst to carry the feedback when a scheduled entity can be expected to decode the long downlink burst before completion of transmission of the short uplink control burst;
select an other uplink control burst in a later-provided slot to carry the feedback when the scheduled entity is not expected to decode the long downlink burst before completion of transmission of the short uplink control burst;
means for providing scheduling information operative to schedule transmission of uplink control information by the scheduled entity; and
means for transmitting a short downlink control burst in at least one slot that provides for a long uplink burst,
wherein the scheduling information is configured to cause the scheduled entity to use the selected uplink control burst for transmission of feedback.

### Claim 26 (depends on 25)

The apparatus of claim 25, and further comprising:
means for receiving uplink control information from the scheduled entity, the means for receiving uplink control information being configured to receive first uplink control information associated with a first long downlink burst provided in a first slot in an uplink control burst provided in a second slot that is transmitted after the first slot.

### Claim 27 (depends on 26)

The apparatus of claim 26, wherein the means for receiving uplink control information is configured to:
receive aggregated control information from the uplink control burst provided in the second slot, wherein the aggregated control information includes control information associated with each of a plurality of slots.

### Claim 28 (depends on 27)

The apparatus of claim 27, wherein the means for providing scheduling information is configured to:
configure a feedback delay for each of the each of the plurality of slots, wherein the feedback delay corresponds to a time between each slot and the uplink control burst provided in the second slot.

### Claim 29 (depends on 27)

The apparatus of claim 27, wherein the means for providing scheduling information is configured to:
configure information identifying location of the second slot relative to the plurality of slots.

### Claim 30 (depends on 26)

The apparatus of claim 26, wherein the uplink control burst provided in the second slot is a short uplink control burst.

### Claim 31 (depends on 25)

The apparatus of claim 25, wherein the means for identifying the uplink control burst is further configured to:
select the other uplink control burst in the later-provided slot to carry the feedback when a power budget of the scheduled entity has insufficient headroom for transmission of the feedback within the same slot as the long downlink burst.

### Claim 32 (depends on 1)

The method of claim 1, further comprising:
selecting the other uplink control burst in the later-provided slot to carry the feedback when a power budget of the scheduled entity has insufficient headroom for transmission of the feedback within the same slot as the long downlink burst.

### Claim 33 (depends on 13)

The scheduling entity of claim 13, wherein the processor is further configured by the executable code to:
select the other uplink control burst in the later-provided slot to carry the feedback when a power budget of the scheduled entity has insufficient headroom for transmission of the feedback within the same slot as the long downlink burst.

### Claim 34 (depends on 21)

The computer-readable storage medium of claim 21, further comprising code for causing the scheduling entity to:
select the other uplink control burst in the later-provided slot to carry the feedback when a power budget of the scheduled entity has insufficient headroom for transmission of the feedback within the same slot as the long downlink burst.
