# US 2018/0324022 A1 · Synchronization signal transmission and reception for radio system

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- Number: US 2018/0324022 A1
- Document ID: US20180324022A1
- Status: Published application
- Kind: A1
- Application number: 15/970,519
- Filed: 2018-05-03
- Published: 2018-11-08
- Earliest claimed: 2017-05-04
- Assignees: Sharp Laboratories of America, Inc.
- Applicants: SHARP Laboratories of America, Inc.
- Inventors: Jia SHENG; Tatsushi AIBA; Toshizo NOGAMI
- Web page: https://patentgrep.com/patent/US20180324022A1

## CPC

- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04L 1/1614: {using bitmaps}
- H04L 5/0082: {at predetermined intervals}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04L 27/2613: {Structure of the reference signals}
- H04L 27/2655: {Synchronisation arrangements}
- H04L 27/2692: {with preamble design, i.e. with negotiation of the synchronisation sequence with transmitter or sequence linked to the algorithm used at the receiver}
- H04W 36/0061: {of neighbour cell information}
- H04W 36/08: Reselecting an access point
- H04L 5/0023: {Time-frequency-space}
- H04L 5/0064: {Rate requirement of the data, e.g. scalable bandwidth, data priority}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A user equipment comprises receiving circuitry configured to receive bit map information indicating time domain positions, within a measurement window, of synchronization signal block(s) (SSB(s)) used for an intra and/or an inter-frequency measurement, the SSB(s) comprising at least a primary synchronization signal (PPS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH), wherein the bitmap information comprises a bit string, and different lengths of the bit string are defined for different frequency bands.

## Claims

### Claim 1

A user equipment comprising:
receiving circuitry configured to receive bit map information indicating time domain positions, within a measurement window, of synchronization signal block(s) (SSB(s)) used for an intra and/or an inter-frequency measurement,
the SSB(s) comprising at least a primary synchronization signal (PPS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH),
wherein the bitmap information comprises a bit string, and different lengths of the bit string are defined for different frequency bands.

### Claim 2

A method in a user equipment comprising:
receiving bit map information indicating time domain positions, within a measurement window, of synchronization signal block(s) (SSB(s)) used for an intra and/or an inter-frequency measurement,
the SSB(s) comprising at least a primary synchronization signal (PPS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH),
wherein the bitmap information comprises a bit string, and different lengths of the bit string are defined for different frequency bands.

### Claim 3

An access node of a radio access network, comprising:
transmitting circuitry configured to transit, over a radio interface to at least one user equipment, bit map information indicating time domain positions, within a measurement window, of synchronization signal block(s) (SSB(s)) used for an intra and/or an inter-frequency measurement,
the SSB(s) comprising at least a primary synchronization signal (PPS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH),
wherein the bitmap information comprises a bit string, and different lengths of the bit string are defined for different frequency bands.

### Claim 4

A method in an access node of a radio access network, comprising:
generating bit map information indicating time domain positions, within a measurement window, of synchronization signal block(s) (SSB(s)) used for an intra and/or an inter-frequency measurement,
the SSB(s) comprising at least a primary synchronization signal (PPS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH),
wherein the bitmap information comprises a bit string, and different lengths of the bit string are defined for different frequency bands; and
transmitting the bitmap information over a radio interface to at least one user equipment.