# US 2025/0159628 A1 · Transmission and reception of sub-band ss/pbch blocks

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- Number: US 2025/0159628 A1
- Document ID: US20250159628A1
- Status: Published application
- Kind: A1
- Application number: 18/924,954
- Filed: 2024-10-23
- Published: 2025-05-15
- Earliest claimed: 2023-11-10
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Emad Nader Farag; Hongbo Si; Dalin Zhu; Eko Onggosanusi
- Web page: https://patentgrep.com/patent/US20250159628A1

## CPC

- H04W 56/0015: {one node acting as a reference for the others}
- H04L 5/0012: {Hopping in multicarrier systems}
- H04W 16/28: using beam steering
- 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

Methods and apparatuses for transmission and reception of sub-band synchronization signal/physical broadcast channel (SS/PBCH) blocks (SSBs) t. A method of operating a user equipment (UE) includes searching SSB indices in SSB occasions. The SSB occasions are organized in SSB groups. An SSB group of the SSB groups includes N SSB indices in N SSB occasions. The SSB group spans M frequency occasions and K time occasions, where N≤M·K, and M>1. The method further includes receiving, in frequency occasion m1i and in time occasion k1i, SSB index i in a first SSB group with index s1 and receiving, in frequency occasion m2i and in time occasion k2i, SSB index i in a second SSB group with index s2. The frequency occasions are different.

## Claims

### Claim 1

A user equipment (UE), comprising:
a processor configured to search synchronization signal (SS)/physical broadcast channel (PBCH) block (SSB) indices in SSB occasions, wherein:
the SSB occasions are organized in SSB groups,
an SSB group of the SSB groups includes N SSB indices in N SSB occasions, and
the SSB group spans M frequency occasions and K time occasions, where N≤M·K, and M>1; and
a transceiver operably coupled to the processor, the transceiver configured to:
receive, in frequency occasion m1i and in time occasion k1i, SSB index i in a first SSB group with index s1, and
receive, in frequency occasion m2i and in time occasion k2i, SSB index i in a second SSB group with index s2,
wherein m1i≠m2i.

### Claim 2 (depends on 1)

The UE of claim 1, wherein k1i=k2i.

### Claim 3 (depends on 1)

The UE of claim 1, wherein:
the transceiver is further configured to receive, in frequency occasion m3i and in time occasion k3i, SSB index i in a third SSB group with index s3,
⌊
s
1
L
⌋
=
⌊
s
3
L
⌋
,
where L>1,
m3i=m1i and
k3i=k1i.

### Claim 4 (depends on 1)

The UE of claim 1, wherein the transceiver is further configured to receive N SSB indices in one frequency occasion across M SSB groups.

### Claim 5 (depends on 1)

The UE of claim 1, wherein the transceiver is further configured to receive N SSB indices in M1 frequency occasions cycled across
⌈
M
M
⁢
1
⌉
SSB groups.

### Claim 6 (depends on 1)

The UE of claim 1, wherein to search the SSB indices in the SSB occasions, the processor is further configured to search all frequency occasions and all time occasions in the SSB group.

### Claim 7 (depends on 1)

The UE of claim 1, wherein:
to search the SSB indices in the SSB occasions, the processor is further configured to search one frequency occasion and all time occasions in the SSB group, and
the searched frequency occasion has a same frequency across SSB groups.

### Claim 8 (depends on 1)

The UE of claim 1, wherein:
to search the SSB indices in the SSB occasions, the processor is further configured to search one frequency occasion and all time occasions in the SSB group, and
the searched frequency occasion follows a hopping pattern across the SSB groups.

### Claim 9

A base station (BS), comprising:
a processor; and
a transceiver operably coupled to the processor, the transceiver configured to transmit synchronization signal (SS)/physical broadcast channel (PBCH) block (SSB) indices in SSB occasions, wherein:
the SSB occasions are organized in SSB groups,
an SSB group of the SSB groups includes N SSB indices in N SSB occasions,
the SSB group spans M frequency occasions and K time occasions, where N≤M·K, and M>1,
SSB index i, in a first SSB group with index s1, is transmitted in frequency occasion m1i and in time occasion k1i,
SSB index i, in a second SSB group with index s2, is transmitted in frequency occasion m2i and in time occasion k2i, and
m1i≠m2i.

### Claim 10 (depends on 9)

The BS of claim 9, wherein k1i=k2i.

### Claim 11 (depends on 9)

The BS of claim 9, wherein:
SSB index i, in a third SSB group with index s3, is transmitted in frequency occasion m3i and in time occasion k3i, and
if
⌊
s
1
L
⌋
=
⌊
s
3
L
⌋
,
where L>1:
m3i=m1i and
k3i=k1i.

### Claim 12 (depends on 9)

The BS of claim 9, wherein the N SSB indices are transmitted in one frequency occasion across M SSB groups.

### Claim 13 (depends on 9)

The BS of claim 9, wherein the N SSB indices are transmitted in M1 frequency occasions across
⌈
M
M
⁢
1
⌉
SSB groups.

### Claim 14

A method of operating a user equipment (UE), the method comprising:
searching synchronization signal (SS)/physical broadcast channel (PBCH) block (SSB) indices in SSB occasions, wherein:
the SSB occasions are organized in SSB groups,
an SSB group of the SSB groups includes N SSB indices in N SSB occasions,
the SSB group spans M frequency occasions and K time occasions, where N≤M·K, and M>1;
receiving, in frequency occasion m1i and in time occasion k1i, SSB index i in a first SSB group with index s1; and
receiving, in frequency occasion m2i and in time occasion k2i, SSB index i in a second SSB group with index s2,
wherein m1i≠m2i.

### Claim 15 (depends on 14)

The method of claim 14, further comprising:
receiving, in frequency occasion m3i and in time occasion k3i, SSB index i in a third SSB group with index s3,
wherein
⌊
s
1
L
⌋
=
⌊
s
3
L
⌋
,
where L>1,
wherein m3i=m1i and
wherein k3i=k1i.

### Claim 16 (depends on 14)

The method of claim 14, further comprising receiving N SSB indices in one frequency occasion across M SSB groups.

### Claim 17 (depends on 14)

The method of claim 14, further comprising receiving N SSB indices in M1 frequency occasions cycled across
⌈
M
M
⁢
1
⌉
SSB groups.

### Claim 18 (depends on 14)

The method of claim 14, wherein searching the SSB indices in the SSB occasions further comprises searching all frequency occasions and all time occasions in the SSB group.

### Claim 19 (depends on 14)

The method of claim 14, wherein:
searching the SSB indices in the SSB occasions further comprises searching one frequency occasion and all time occasions in the SSB group, and
the searched frequency occasion has a same frequency across SSB groups.

### Claim 20 (depends on 14)

The method of claim 14, wherein:
searching the SSB indices in the SSB occasions further comprises searching one frequency occasion and all time occasions in the SSB group, and
the searched frequency occasion follows a hopping pattern across the SSB groups.