# US 12,598,636 B2 · Method and apparatus for transmitting signal in wireless communication system

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- Number: US 12,598,636 B2
- Document ID: US12598636B2
- Status: Granted
- Kind: B2
- Application number: 18/015,925
- Filed: 2021-08-20
- Published: 2023-08-31
- Granted: 2026-04-07
- Earliest claimed: 2020-08-21
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Hyunmin Kim
- Web page: https://patentgrep.com/patent/US12598636B2

## CPC

- H04J 11/0073: {Acquisition of primary synchronisation channel, e.g. detection of cell-ID within cell-ID group}
- H04W 72/569: {of the traffic information}
- H04J 11/0076: {Acquisition of secondary synchronisation channel, e.g. detection of cell-ID group}
- H04L 27/26: Systems using multi-frequency codes (H04L27/32 takes precedence)
- H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W 48/10: using broadcasted information
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/046: {the resource being in the space domain, e.g. beams}
- H04W 72/25: between terminals via a wireless link, e.g. sidelink
- H04W 92/18: between terminal devices
- H04B 7/0695: {using beam selection}
- H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S)
- 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)
- H04B: TRANSMISSION

## Abstract

A method of operating a terminal in a wireless communication system is disclosed. The method of operating the terminal may comprise the terminal receiving one or more synchronization signal bocks (SSBs), selecting an SSB from among the one or more SSBs based on priority, generating at least one SSB group based on the selected SSB and a cyclic prefix (CP) boundary, and transmitting an indication message. The priority may be based on channel measurement and synchronization reference, the indication message may comprise slot configuration information based on the at least one SSB group.

## Claims

### Claim 1

A method comprising:
receiving, by a terminal, one or more synchronization signal blocks (SSBs);
selecting an SSB from among the one or more SSBs based on priority;
generating at least one SSB group based on the selected SSB and a cyclic prefix (CP) boundary, wherein each of the at least one SSB group includes a plurality of SSBs;
transmitting an information message;
receiving a sidelink synchronization signal (SLSS) and a physical broadcast channel (PBCH) based on the one or more SSBs;
receiving control information based on a physical sidelink control channel (PSCCH); and
receiving data based on a physical sidelink shared channel (PSSCH),
wherein the priority is based on channel measurement and synchronization reference,
wherein the information message comprises slot configuration information,
wherein the slot configuration is performed for each beam based on the number of the at least one SSB group,
wherein a 2-bit reserved period of a physical broadcast channel (PBCH) included in the one or more SSBs comprises a cast-type related parameter, and a slot is configured for each beam based on the cast-type parameter, and
wherein the terminal determines the cast-type related parameter of a broadcast type and does not transmit the information message.

### Claim 2 (depends on 1)

The method of claim 1, wherein a beam received by the terminal has a plurality of SSB groups, and the terminal additionally allocates one slot to the received beam.

### Claim 3 (depends on 1)

The method of claim 1, wherein the information message is transmitted through a physical sidelink control channel (PSCCH), the PSCCH is scrambled based on a sidelink synchronization signal (SLSS) ID, and the SLSS ID is based on the one or more SSBs.

### Claim 4 (depends on 1)

The method of claim 1, wherein the terminal selects a resource pool based on the one or more SSBs, and the resource pool is allocated based on priority of a content type of a PBCH included in SSBs in the SSB group.

### Claim 5 (depends on 4)

The method of claim 4, wherein the information message comprises reserve symbol and reserve subchannel information based on the allocated resource pool information.

### Claim 6 (depends on 4)

The method of claim 4, wherein the resource pool is allocated based on resources of a beam different from a beam to which the received SSBs belong.

### Claim 7

A terminal comprising:
a transceiver; and
a processor connected to the transceiver,
wherein the processor is configured to:
control the transceiver to receive one or more synchronization signal blocks (SSBs),
control the terminal to select an SSB from among the one or more SSBs based on priority,
control the terminal to generate at least one SSB group based on the selected SSB and a cyclic prefix (CP) boundary, wherein each of the at least one SSB group includes a plurality of SSBs;
control the transceiver to transmit an information message;
control the transceiver to receive a sidelink synchronization signal (SLSS) and a physical broadcast channel (PBCH) based on the one or more SSBs;
control the transceiver to receive control information based on a physical sidelink control channel (PSCCH); and
control the transceiver to receive data based on a physical sidelink shared channel (PSSCH),
wherein the priority is based on a channel measurement and synchronization reference,
wherein the information message comprises slot configuration information,
wherein the slot configuration is performed for each beam based on the number of the at least one SSB group,
wherein a 2-bit reserved period of a physical broadcast channel (PBCH) included in the one or more SSBs comprises a cast-type related parameter, and a slot is configured for each beam based on the cast-type parameter, and
wherein the processor performs control to determine the cast-type related parameter of a broadcast type and controls the transceiver not to transmit the information message.

### Claim 8 (depends on 7)

The terminal of claim 7, wherein a beam received by the terminal has a plurality of SSB groups, and wherein the processor performs control to additionally allocate one slot to the received beam.

### Claim 9 (depends on 7)

The terminal of claim 7, wherein the information message is transmitted through a physical sidelink control channel (PSCCH), the PSCCH is scrambled based on a sidelink synchronization signal (SLSS) ID, and the SLSS ID is based on the one or more SSBs.

### Claim 10 (depends on 9)

The terminal of claim 9, wherein the information message comprises reserve symbol and reserve subchannel information based on the allocated resource pool information.

### Claim 11 (depends on 7)

The terminal of claim 7, wherein the processor performs control to select a resource pool based on the one or more SSBs, and the resource pool is allocated based on priority of a content type of a PBCH included in SSBs in the SSB group.

### Claim 12 (depends on 11)

The terminal of claim 11, wherein the resource pool is allocated based on resources of a beam different from a beam to which the received SSBs belong.

### Claim 13

A first terminal comprising:
a transceiver; and
a processor connected to the transceiver,
wherein the processor controls the transceiver to transmit one or more synchronization signal blocks (SSBs) to a second terminal and controls the transceiver to receive an information message from the second terminal,
wherein the processor controls the transceiver to transmit a sidelink synchronization signal (SLSS) and a physical broadcast channel (PBCH) based on the one or more SSBs,
wherein the processor controls the transceiver to transmit control information based on a physical sidelink control channel (PSCCH),
wherein the processor controls the transceiver to transmit data based on a physical sidelink shared channel (PSSCH),
wherein the information message comprises slot configuration information, and the slot configuration is performed for each beam based on the number of at least one SSB group,
wherein the at least one SSB group is generated by an SSB selected by the second terminal and a cyclic prefix (CP) boundary,
wherein each of the at least one SSB group includes a plurality of SSBs,
wherein the SSB selected by the second terminal is selected from among one or more SSBs received by the second terminal based on priority,
wherein the priority is based on channel measurement and a synchronization reference,
wherein a 2-bit reserved period of a physical broadcast channel (PBCH) included in the one or more SSBs comprises a cast-type related parameter, and a slot is configured for each beam based on the cast-type parameter, and
wherein the cast-type related parameter of a broadcast type is determined by the second terminal, and the second terminal does not transmit the information message.

### Claim 14 (depends on 13)

The first terminal of claim 13, wherein the information message is received through a physical sidelink control channel (PSCCH), the PSCCH is scrambled based on a sidelink synchronization signal (SLSS) ID, and the SLSS ID is based on the one or more SSBs.

### Claim 15 (depends on 13)

The first terminal of claim 13, wherein a resource pool is selected based on the one or more SSBs by the second terminal, and the resource pool is allocated based on priority of a content type of a PBCH included in SSBs in the SSB group.

### Claim 16 (depends on 15)

The first terminal of claim 15, wherein the information message comprises reserve symbol and reserve subchannel information based on the allocated resource pool information.

### Claim 17 (depends on 15)

The first terminal of claim 15, wherein the resource pool is allocated based on resources of a beam different from a beam to which the received SSBs belong.
