# US 2020/0396752 A1 · Techniques for beam sweep based semi-persistent scheduling / configured grant activation

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- Number: US 2020/0396752 A1
- Document ID: US20200396752A1
- Status: Published application
- Kind: A1
- Application number: 16/876,761
- Filed: 2020-05-18
- Published: 2020-12-17
- Earliest claimed: 2019-06-14
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Yan ZHOU; Tao LUO; Xiaoxia ZHANG; Jing SUN; Mostafa KHOSHNEVISAN; Seyed Ali Akbar FAKOORIAN
- Web page: https://patentgrep.com/patent/US20200396752A1

## CPC

- H04B 7/0617: {for beam forming}
- H04W 72/1268: of uplink data flows
- H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT}
- H04L 5/001: {the frequencies being arranged in component carriers}
- H04L 5/0023: {Time-frequency-space}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)}
- H04L 5/1469: {using time-sharing}
- H04W 72/046: {the resource being in the space domain, e.g. beams}
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- 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)

## Abstract

Aspects described herein relate to beam sweep based semi-persistent signaling (SPS) or configured grant (CG) activation. In one aspect, a network entity may determine a beam sweep pattern for at least one of a SPS based downlink periodic transmission, an uplink control transmission for the SPS based downlink periodic transmission, or a CG based uplink periodic transmission. The network entity may further transmit an indication including the beam sweep pattern to a user equipment (UE). In another aspect, a UE may receive a beam sweep pattern for at least one of a SPS based downlink periodic transmission, an uplink control transmission for the SPS based downlink periodic transmission, or a CG based uplink periodic transmission from a network entity.

## Claims

### Claim 1

A method for wireless communication at a network entity, comprising:
determining a beam sweep pattern for at least one of a semi-persistent scheduling (SPS) based downlink periodic transmission, an uplink control transmission for the SPS based downlink periodic transmission, or a configured grant (CG) based uplink periodic transmission; and
transmitting an indication including the beam sweep pattern to a user equipment (UP.

### Claim 2 (depends on 1)

The method of claim 1, wherein the uplink control transmission for the SPS based downlink periodic transmission carries at least a corresponding acknowledgement.

### Claim 3 (depends on 1)

The method of claim 1, wherein the uplink control transmission is carried in a physical uplink control channel (PUCCH).

### Claim 4 (depends on 1)

The method of claim 1, wherein the beam sweep pattern corresponds to multiple beam pair links communicated in a time division multiplexing (TDM) based, frequency division multiplexing (FDM) based, spatial division multiplexing (SDM) based scheme, or any combination thereof.

### Claim 5 (depends on 4)

The method of claim 4, wherein the TDM based beam sweep pattern configures the SPS based downlink transmission, the uplink control transmission for SPS, or the CG transmission via different beam pair links at different time allocations, and wherein the different time allocations correspond to different slots or different mini-slots.

### Claim 6 (depends on 4)

The method of claim 4, wherein the FDM based beam sweep pattern configures the SPS based downlink transmission, the uplink control transmission for SPS, or the CG transmission via different beam pair links at different frequency allocations.

### Claim 7 (depends on 4)

The method of claim 4, wherein the SDM based beam sweep pattern corresponds configures the SPS based downlink transmission, the uplink control transmission for SPS, or the CG transmission via different beam pair links simultaneously at overlapped allocations in time and frequency.

### Claim 8 (depends on 4)

The method of claim 4, wherein each of the multiple beam pair links is indicated by a transmission configuration indicator (TCI) state or codepoint .

### Claim 9 (depends on 4)

The method of claim 4, wherein each of the multiple beam pair links is indicated by a spatial relation indication.

### Claim 10 (depends on 1)

The method of claim 1, wherein the indication is signaled in downlink control information (DCI).

### Claim 11 (depends on 1)

The method of claim 1, wherein the indication is transmitted in a media access control (MAC) control element (CE), the method further comprising transmitting an activation downlink control information (DCI) to the UE to indicate utilization of the beam sweep pattern indicated in the MAC CE.

### Claim 12 (depends on 1)

The method of claim 1, wherein the indication corresponds to a radio resource control (RRC) message.

### Claim 13 (depends on 1)

The method of claim 1, wherein the indication includes at least an index value associated with the beam sweep pattern, and a beam sweep pattern list including one or more index values, each associated with a distinct beam sweep beam pair link.

### Claim 14 (depends on 15)

The method of claim 15, wherein the association of each index value with the beam sweep pattern is configured by a media access control (MAC) control element (CE) an RRC message, and wherein each configured index value associated with a beam sweep pattern index is down-selected for activation by the MAC-CE.

### Claim 15 (depends on 1)

The method of claim 1, further comprising transmitting a redundancy version pattern independently of or jointly with the transmission of the beam sweep pattern.

### Claim 16 (depends on 1)

The method of claim 1, wherein a single common beam sweep pattern is transmitted for at least two of the SPS based downlink transmission, the uplink control transmission for SPS, or the CG transmission.

### Claim 17 (depends on 1)

The method of claim 1, wherein a single common beam sweep pattern is transmitted for at least two different SPS based downlink configurations.

### Claim 18 (depends on 1)

The method of claim 1, wherein a single common beam sweep pattern is transmitted for at least two different CG configurations.

### Claim 19

A method for wireless communication at a user equipment, comprising:
receiving a beam sweep pattern for at least one of a semi-persistent scheduling (SPS) based downlink periodic transmission, an uplink control transmission for the SPS based downlink periodic transmission, or a configured grant (CG) based uplink periodic transmission from a network entity; and
configuring communication using two or more beams on at least one of an uplink channel or a downlink channel based on the beam sweep pattern.

### Claim 20 (depends on 19)

The method of claim 19, wherein the uplink control transmission for the SPS based downlink periodic transmission carries at least a corresponding acknowledgement.

### Claim 21 (depends on 19)

The method of claim 19, wherein the uplink control transmission is carried in a physical uplink control channel (PUCCH).

### Claim 22 (depends on 19)

The method of claim 19, wherein the beam sweep pattern corresponds to multiple beam pair links communicated in a time division multiplexing (TDM) based, frequency division multiplexing (FDM) based, spatial division multiplexing (SDM) based scheme, or any combination thereof.

### Claim 23 (depends on 22)

The method of claim 22, wherein the TDM based beam sweep pattern configures the SPS based downlink transmission, the uplink control transmission for SPS, or the CG transmission via different beam pair links at different time allocations.

### Claim 24 (depends on 23)

The method of claim 23, wherein the different time allocations correspond to different slots or different mini-slots.

### Claim 25 (depends on 22)

The method of claim 22, wherein the FDM based beam sweep pattern configures the SPS based downlink transmission, the uplink control transmission for SPS, or the CG transmission via different beam pair links at different frequency allocations.

### Claim 26 (depends on 22)

The method of claim 22, wherein the SDM based beam sweep pattern corresponds configures the SPS based downlink transmission, the uplink control transmission for SPS, or the CG transmission via different beam pair links simultaneously at overlapped allocations in time and frequency.

### Claim 27 (depends on 22)

The method of claim 22, wherein each of the multiple beam pair links is indicated by a transmission configuration indicator (TCI) state or codepoint.

### Claim 28 (depends on 22)

The method of claim 22, wherein each of the multiple beam pair links is indicated by a spatial relation indication.

### Claim 29

An apparatus for wireless communication, comprising:
a transceiver;
a memory configured to store instructions; and
at least one processor communicatively coupled with the transceiver and the memory, wherein the at least one processor is configured to:
determine a beam sweep pattern for at least one of a semi-persistent scheduling (SPS) based downlink periodic transmission, an uplink control transmission for the SPS based downlink periodic transmission, or a configured grant (CG) based uplink periodic transmission; and
transmit an indication including the beam sweep pattern to a user equipment (UE).

### Claim 30

An apparatus for wireless communication, comprising:
a transceiver;
a memory configured to store instructions; and
at least one processor communicatively coupled with the transceiver and the memory, wherein the at least one processor is configured to:
receive a beam sweep pattern for at least one of a semi-persistent scheduling (SPS) based downlink periodic transmission, an uplink control transmission for the SPS based downlink periodic transmission, or a configured grant (CG) based uplink periodic transmission from a network entity; and
configure communication using two or more beams on at least one of an uplink channel or a downlink channel based on the beam sweep pattern.
