# US 12,764,683 B2 · Synchronisation signaling for wireless communication network

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- Number: US 12,764,683 B2
- Document ID: US12764683B2
- Status: Granted
- Kind: B2
- Application number: 17/921,210
- Filed: 2020-05-05
- Published: 2023-06-01
- Granted: 2026-10-13
- Earliest claimed: 2020-05-05
- Assignees: Telefonaktiebolaget LM Ericsson (publ)
- Applicants: Telefonaktiebolaget LM Ericsson (publ)
- Inventors: Ning He; Robert Baldemair; Håkan Björkegren
- Web page: https://patentgrep.com/patent/US12764683B2

## CPC

- H04W 56/0015: {one node acting as a reference for the others}
- H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal}
- 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

A method of operating a transmitting radio node for a wireless communication network. The method includes transmitting synchronisation signaling in a synchronisation time interval, the synchronisation signaling comprising primary synchronisation signaling, the primary synchronisation signaling spanning two or more allocation units of the synchronisation time interval. The disclosure also pertains to related devices and methods.

## Claims

### Claim 1

A method of operating a transmitting radio node for a wireless communication network, the method comprising:
transmitting synchronisation signaling in a synchronisation time interval, the synchronisation signaling comprising primary synchronisation signaling, the primary synchronisation signaling spanning two or more adjacent symbol time intervals of allocation units of the synchronisation time interval, a signaling sequence associated to one of the allocation units being composed of a plurality of composite sequences that are based on a same root sequence.

### Claim 2 (depends on 1)

The method according to claim 1, wherein to each of the two or more adjacent symbol time intervals of allocation units spanned by the primary synchronisation signaling, there is associated a signaling sequence.

### Claim 3 (depends on 1)

The method according to claim 1, wherein signaling sequences of the primary synchronisation signaling associated to different allocation units are different.

### Claim 4 (depends on 1)

The method according to claim 1, wherein signaling sequences of the primary synchronisation signaling associated to different allocation units of the allocation units are based on the same root sequence.

### Claim 5 (depends on 1)

The method according to claim 1, wherein signaling sequences associated to different allocation units of the allocation units are based on one or both of an orthogonalisation code and a barker code.

### Claim 6 (depends on 5)

The method according to claim 5, wherein the signaling sequences are from a set of sequences.

### Claim 7 (depends on 1)

The method according to claim 1, wherein a signaling sequence associated to one of the allocation units is based on a M-sequence.

### Claim 8 (depends on 1)

The method according to claim 1, wherein a signaling sequence associated to one of the allocation units is based on a barker code.

### Claim 9 (depends on 1)

The method according to claim 1, wherein a signaling sequence associated to one of the allocation units one or both comprises and is based on a cyclic extension.

### Claim 10

A transmitting radio node for a wireless communication network, the transmitting radio node comprising processing circuitry, the processing circuitry being configured to:
cause transmission of synchronisation signaling in a synchronisation time interval, the synchronisation signaling comprising primary synchronisation signaling, the primary synchronisation signaling spanning two or more adjacent symbol time intervals of allocation units of the synchronisation time interval, a signaling sequence associated to one of the allocation units being composed of a plurality of composite sequences that are based on a same root sequence.

### Claim 11

A method of operating a receiving radio node for a wireless communication network, the method comprising communicating with one or both of the wireless communication network and a transmitting radio node based on received synchronisation signaling, the synchronisation signaling spanning a synchronisation time interval, and the synchronisation signaling comprising primary synchronisation signaling, the primary synchronisation signaling spanning two or more adjacent symbol time intervals of allocation units of the synchronisation time interval, a signaling sequence associated to one of the allocation units being composed of a plurality of composite sequences that are based on a same root sequence.

### Claim 12 (depends on 11)

The method according to claim 11, wherein to each of the two or more adjacent symbol time intervals of allocation units spanned by the primary synchronisation signaling, there is associated a signaling sequence.

### Claim 13 (depends on 11)

The method according to claim 11, wherein signaling sequences of the primary synchronisation signaling associated to different allocation units are different.

### Claim 14 (depends on 11)

The method according to claim 11, wherein signaling sequences of the primary synchronisation signaling associated to different allocation units of the allocation units are based on the same root sequence.

### Claim 15 (depends on 11)

The method according to claim 11, wherein signaling sequences associated to different allocation units of the allocation units are based on one or both of an orthogonalisation code and a barker code.

### Claim 16 (depends on 15)

The method according to claim 15, wherein the signaling sequences are from a set of sequences.

### Claim 17

A receiving radio node for a wireless communication network, the receiving radio node comprising processing circuitry, the processing circuitry being configured to:
communicate with one or both of the wireless communication network and a transmitting radio node based on received synchronisation signaling, the synchronisation signaling spanning a synchronisation time interval, and the synchronisation signaling comprising primary synchronisation signaling, the primary synchronisation signaling spanning two or more adjacent symbol time intervals of allocation units of the synchronisation time interval, a signaling sequence associated to one of the allocation units being composed of a plurality of composite sequences that are based on a same root sequence.

### Claim 18

A non-transitory computer storage medium storing a computer program comprising instructions causing processing circuitry to one or both control and perform a method of operating a transmitting radio node for a wireless communication network, the method comprising:
transmitting synchronisation signaling in a synchronisation time interval, the synchronisation signaling comprising primary synchronisation signaling, the primary synchronisation signaling spanning two or more adjacent symbol time intervals of allocation units of the synchronisation time interval, a signaling sequence associated to one of the allocation units being composed of a plurality of composite sequences that are based on a same root sequence.
