# US 12,120,711 B2 · Scheduling broadcast or multicast communications for new radio

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- Number: US 12,120,711 B2
- Document ID: US12120711B2
- Status: Granted
- Kind: B2
- Application number: 17/813,205
- Filed: 2022-07-18
- Published: 2022-11-03
- Granted: 2024-10-15
- Earliest claimed: 2019-08-02
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Le Liu; Alberto Rico Alvarino; Kazuki Takeda; Xiaoxia Zhang
- Web page: https://patentgrep.com/patent/US12120711B2

## CPC

- H04W 72/30: Resource management for broadcast services
- H04L 1/1819: {with retransmission of additional or different redundancy}
- H04L 1/1822: involving configuration of automatic repeat request [ARQ] with parallel processes
- H04L 1/1854: {Scheduling and prioritising arrangements}
- H04L 1/1864: {ARQ related signaling (H04L1/1607 takes precedence)}
- H04L 1/189: {Transmission or retransmission of more than one copy of a message}
- H04L 1/1896: {ARQ related signaling}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0092: {Indication of how the channel is divided}
- H04W 72/046: {the resource being in the space domain, e.g. beams}
- H04W 72/1268: of uplink data flows
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 72/53: based on regulatory allocation policies
- H04W 76/11: Allocation or use of connection identifiers
- H04L 2001/0093: {Point-to-multipoint}
- 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

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a broadcast or a multicast (broadcast/multicast) scheduling configuration for a physical downlink control channel (PDCCH), the broadcast/multicast scheduling configuration identifying, for receiving broadcast/multicast communications, at least one of: a plurality of radio network temporary identifiers that are respectively associated with a plurality of beams, or one or more bandwidth parts. The UE may receive a broadcast/multicast communication associated with a broadcast/multicast control channel or a broadcast/multicast traffic channel via a physical downlink shared channel in accordance with the broadcast/multicast scheduling configuration for the PDCCH. Numerous other aspects are provided.

## Claims

### Claim 1

A method of wireless communication performed by a user equipment (UE), comprising:
receiving a first downlink control information (DCI) scheduling a first broadcast or multicast (broadcast/multicast) communication, the first DCI being scrambled by a multicast radio network temporary identifier (M-RNTI) and indicating a first bandwidth part (BWP);
receiving the first broadcast/multicast communication, the first broadcast/multicast communication being associated with a broadcast/multicast control channel via a first physical downlink shared channel (PDSCH) in accordance with the first DCI, and the broadcast/multicast control channel being associated with the M-RNTI and the first BWP;
receiving a second DCI scheduling a second broadcast/multicast communication, the second DCI being scrambled by another RNTI and indicating a second BWP; and
receiving the second broadcast/multicast communication, the second broadcast/multicast communication being associated with a broadcast/multicast traffic channel via a second PDSCH in accordance with the second DCI, and the broadcast/multicast traffic channel being associated with the other RNTI and the second BWP.

### Claim 2 (depends on 1)

The method of claim 1, wherein the second DCI is scrambled by a group RNTI for the second broadcast/multicast communication.

### Claim 3 (depends on 1)

The method of claim 1, wherein the second broadcast/multicast communication is received in accordance with the second BWP.

### Claim 4 (depends on 1)

The method of claim 1, wherein the first DCI indicates a control resource set (CORESET) configuration and a search space configuration.

### Claim 5 (depends on 4)

The method of claim 4, wherein the CORESET configuration indicates a beam configuration.

### Claim 6 (depends on 4)

The method of claim 4, wherein one or more of the first broadcast/multicast communication or the second broadcast/multicast communication is received in accordance with the CORESET configuration and the search space configuration.

### Claim 7 (depends on 1)

The method of claim 1, wherein the M-RNTI corresponds to a particular beam.

### Claim 8

A method of wireless communication performed by a network entity, comprising:
scheduling a first broadcast or multicast (broadcast/multicast) communication using a first downlink control information (DCI), the first DCI being scrambled by a multicast radio network temporary identifier (M-RNTI) and indicating a first bandwidth part (BWP);
transmitting the first broadcast/multicast communication, the first broadcast/multicast communication being associated with a broadcast/multicast control channel via a first physical downlink shared channel (PDSCH) in accordance with the first DCI, and the broadcast/multicast control channel being associated with the M-RNTI and the first BWP;
scheduling a second broadcast/multicast communication using a second DCI, the second DCI being scrambled by another RNTI and indicating a second BWP; and
transmitting the second broadcast/multicast communication, the second broadcast/multicast communication being associated with a broadcast/multicast traffic channel via a second PDSCH in accordance with the second DCI, and the broadcast/multicast traffic channel being associated with the other RNTI and the second BWP.

### Claim 9 (depends on 8)

The method of claim 8, wherein the second DCI is scrambled by a group RNTI for the second broadcast/multicast communication.

### Claim 10 (depends on 8)

The method of claim 8, wherein the second broadcast/multicast communication is received in accordance with the second BWP.

### Claim 11 (depends on 8)

The method of claim 8, wherein the first DCI indicates a control resource set (CORESET) configuration and a search space configuration.

### Claim 12 (depends on 11)

The method of claim 11, wherein the CORESET configuration indicates a beam configuration.

### Claim 13 (depends on 11)

The method of claim 11, wherein one or more of the first broadcast/multicast communication or the second broadcast/multicast communication is transmitted in accordance with the CORESET configuration and the search space configuration.

### Claim 14 (depends on 8)

The method of claim 8, wherein the M-RNTI corresponds to a particular beam.

### Claim 15

A user equipment (UE) for wireless communication, comprising:
at least one memory; and
at least one processor communicatively coupled with the at least one memory, the at least one processor configured to cause the UE to:
receive a first downlink control information (DCI) scheduling a first broadcast or multicast (broadcast/multicast) communication, the first DCI being scrambled by a multicast radio network temporary identifier (M-RNTI) and indicating a first bandwidth part (BWP);
receive the first broadcast/multicast communication, the first broadcast/multicast communication being associated with a broadcast/multicast control channel via a first physical downlink shared channel (PDSCH) in accordance with the first DCI, and the broadcast/multicast control channel being associated with the M-RNTI and the first BWP;
receive a second DCI scheduling a second broadcast/multicast communication, the second DCI being scrambled by another RNTI and indicating a second BWP; and
receive the second broadcast/multicast communication, the second broadcast/multicast communication being associated with a broadcast/multicast traffic channel via a second PDSCH in accordance with the second DCI, and the broadcast/multicast traffic channel being associated with the other RNTI and the second BWP.

### Claim 16 (depends on 15)

The UE of claim 15, wherein the second DCI is scrambled by a group RNTI for the second broadcast/multicast communication.

### Claim 17 (depends on 16)

The UE of claim 16, wherein a cyclic redundancy check (CRC) of the second DCI is scrambled by the group RNTI.

### Claim 18 (depends on 15)

The UE of claim 15, wherein the second broadcast/multicast communication is received in accordance with the second BWP.

### Claim 19 (depends on 15)

The UE of claim 15, wherein the first DCI indicates a control resource set (CORESET) configuration and a search space configuration.

### Claim 20 (depends on 19)

The UE of claim 19, wherein the CORESET configuration indicates a beam configuration.

### Claim 21 (depends on 19)

The UE of claim 19, wherein one or more of the first broadcast/multicast communication or the second broadcast/multicast communication is received in accordance with the CORESET configuration and the search space configuration.

### Claim 22 (depends on 15)

The UE of claim 15, wherein the M-RNTI corresponds to a particular beam.

### Claim 23 (depends on 15)

The UE of claim 15, wherein a cyclic redundancy check (CRC) of the first DCI is scrambled by the M-RNTI.

### Claim 24

A network entity for wireless communication, comprising:
at least one memory; and
at least one processor communicatively coupled with the at least one memory, the at least one processor configured to cause the network entity to:
schedule a first broadcast or multicast (broadcast/multicast) communication using a first downlink control information (DCI), the first DCI being scrambled by a multicast radio network temporary identifier (M-RNTI) and indicating a first bandwidth part (BWP);
transmit the first broadcast/multicast communication, the first broadcast/multicast communication being associated with a broadcast/multicast control channel via a first physical downlink shared channel (PDSCH) in accordance with the first DCI, and the broadcast/multicast control channel being associated with the M-RNTI and the first BWP;
schedule a second broadcast/multicast communication using a second DCI, the second DCI being scrambled by another RNTI and indicating a second BWP; and
transmit the second broadcast/multicast communication, the second broadcast/multicast communication being associated with a broadcast/multicast traffic channel via a second PDSCH in accordance with the second DCI, and the broadcast/multicast traffic channel being associated with the other RNTI and the second BWP.

### Claim 25 (depends on 24)

The network entity of claim 24, wherein the second DCI is scrambled by a group RNTI for the second broadcast/multicast communication.

### Claim 26 (depends on 24)

The network entity of claim 24, wherein the second broadcast/multicast communication is received in accordance with the second BWP.

### Claim 27 (depends on 24)

The network entity of claim 24, wherein the first DCI indicates a control resource set (CORESET) configuration and a search space configuration.

### Claim 28 (depends on 27)

The network entity of claim 27, wherein the CORESET configuration indicates a beam configuration.

### Claim 29 (depends on 27)

The network entity of claim 27, wherein one or more of the first broadcast/multicast communication or the second broadcast/multicast communication is transmitted in accordance with the CORESET configuration and the search space configuration.

### Claim 30 (depends on 24)

The network entity of claim 24, wherein the M-RNTI corresponds to a particular beam.
