# US 2018/0324678 A1 · Method and apparatus for ss block index and timing indication in wireless systems

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- Number: US 2018/0324678 A1
- Document ID: US20180324678A1
- Status: Published application
- Kind: A1
- Application number: 15/970,115
- Filed: 2018-05-03
- Published: 2018-11-08
- Earliest claimed: 2017-05-04
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Hao Chen; Young-Han Nam; Chao He; Vikram Chandrasekhar; Hongbo Si; Boon Loong Ng
- Web page: https://patentgrep.com/patent/US20180324678A1

## CPC

- H04W 48/10: using broadcasted information
- H04W 8/08: Mobility data transfer
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04W 48/16: Discovering, processing access restriction or access information
- H04W 56/001: {Synchronization between nodes}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Apparatuses and methods for synchronization signal (SS) block index and timing indication in wireless communication systems. A method of operating a user equipment (UE) includes receiving, from a base station (BS), sets of higher-layer configuration information. When configured for mobility measurement on SS and physical broadcast channel (PBCH) (SS/PBCH) blocks, the UE identifies, based on one of the sets of higher-layer configuration information, a first set of SS/PBCH blocks configured for the mobility measurement; and measures and reports mobility measurement quantities for the first set of SS/PBCH blocks. When configured for receiving a physical downlink shared channel (PDSCH), the UE identifies, based on another of the sets of higher-layer configuration information, a second set of SS/PBCH blocks configured for the UE; and receives the PDSCH with rate matching around a SS/PBCH block included in the second set of SS/PBCH blocks.

## Claims

### Claim 1

A user equipment (UE) comprising:
a transceiver configured to receive, from a base station (BS), sets of higher-layer configuration information;
a processor operably connected to the transceiver, the processor configured to:
when configured for mobility measurement on synchronization signal (SS) and physical broadcast channel (PBCH) (SS/PBCH) blocks:
identify, based on one of the sets of higher-layer configuration information, a first set of SS/PBCH blocks configured for the mobility measurement; and
measure and report, via the transceiver, mobility measurement quantities for the first set of SS/PBCH blocks; and
when configured for receiving a physical downlink shared channel (PDSCH):
identify, based on another of the sets of higher-layer configuration information, a second set of SS/PBCH blocks configured for the UE; and
receive, via the transceiver, the PDSCH with rate matching around a SS/PBCH block included in the second set of SS/PBCH blocks.

### Claim 2 (depends on 1)

The UE of claim 1, wherein:
the processor is configured for the mobility measurement,
the processor is further configured to monitor for a SS/PBCH block measurement timing configuration (SMTC) duration, and
the processor is configured to measure and report, via the transceiver, the mobility measurement quantities for the first set of SS/PBCH blocks that overlap with the SMTC duration.

### Claim 3 (depends on 1)

The UE of claim 1, wherein the mobility measurement quantities comprise a SS reference signal received power (SS-RSRP) for a subset of the first set of SS/PBCH blocks.

### Claim 4 (depends on 1)

The UE of claim 1, wherein the mobility measurement quantities comprise a SS reference signal received quality (SS-RSRQ) for a subset of the first set of SS/PBCH blocks.

### Claim 5 (depends on 1)

The UE of claim 1, wherein the processor is configured to perform rate matching of the PDSCH at data physical resource block (PRB) boundaries around a set of consecutive PRBs at least partially overlapping with an SS/PBCH block in orthogonal frequency-division multiplexing (OFDM) symbols containing the SS/PBCH block.

### Claim 6 (depends on 1)

The UE of claim 1, wherein the processor is configured to perform rate matching of the PDSCH around an entire bandwidth part (BWP) bandwidth in orthogonal frequency-division multiplexing (OFDM) symbols containing the SS/PBCH block.

### Claim 7 (depends on 1)

The UE of claim 1, wherein SS/PBCH block periodicities are separately configured for PDSCH rate matching and mobility measurement purposes.

### Claim 8

A base station (BS) comprising:
a processor configured to generate sets of higher-layer configuration information for a user equipment (UE); and
a transceiver operably connected to the processor, the transceiver configured to transmit, to the UE, the sets of higher-layer configuration information and receive, from the UE, reports based on the sets of higher-layer configuration information, wherein:
when configuring the UE for mobility measurement on synchronization signal (SS) and physical broadcast channel (PBCH) (SS/PBCH) blocks, the processor is configured to generate one of the sets of higher-layer configuration information to indicate a first set of SS/PBCH blocks configured for the mobility measurement for reporting of mobility measurement quantities for the first set of SS/PBCH blocks; and
when configuring the UE for receiving a physical downlink shared channel (PDSCH), the processor is configured to:
generate another of the sets of higher-layer configuration information to indicate a second set of SS/PBCH blocks configured for the UE; and
transmit, via the transceiver, the PDSCH with rate matching around a SS/PBCH block included in the second set of SS/PBCH blocks.

### Claim 9 (depends on 8)

The BS of claim 8, wherein the mobility measurement quantities comprise a SS reference signal received power (SS-RSRP) for a subset of the first set of SS/PBCH blocks.

### Claim 10 (depends on 8)

The BS of claim 8, wherein the mobility measurement quantities comprise a SS reference signal received quality (SS-RSRQ) for a subset of the first set of SS/PBCH blocks.

### Claim 11 (depends on 8)

The BS of claim 8, wherein the processor is configured to configure the UE for rate matching of the PDSCH at data physical resource block (PRB) boundaries around a set of consecutive PRBs at least partially overlapping with an SS/PBCH block in orthogonal frequency-division multiplexing (OFDM) symbols containing the SS/PBCH block.

### Claim 12 (depends on 8)

The BS of claim 8, wherein the processor is configured to configure the UE for rate matching of the PDSCH around an entire bandwidth part (BWP) bandwidth in orthogonal frequency-division multiplexing (OFDM) symbols containing the SS/PBCH block.

### Claim 13 (depends on 8)

The BS of claim 8, wherein SS/PBCH block periodicities are separately configured for PDSCH rate matching and mobility measurement purposes.

### Claim 14

A method of operating a user equipment (UE), the method comprising:
receiving, from a base station (BS), sets of higher-layer configuration information;
when configured for mobility measurement on synchronization signal (SS) and physical broadcast channel (PBCH) (SS/PBCH) blocks:
identifying, based on one of the sets of higher-layer configuration information, a first set of SS/PBCH blocks configured for the mobility measurement; and
measuring and reporting mobility measurement quantities for the first set of SS/PBCH blocks; and
when configured for receiving a physical downlink shared channel (PDSCH):
identifying, based on another of the sets of higher-layer configuration information, a second set of SS/PBCH blocks configured for the UE; and
receiving the PDSCH with rate matching around a SS/PBCH block included in the second set of SS/PBCH blocks.

### Claim 15 (depends on 14)

The method of claim 14, wherein the UE is configured for the mobility measurement, and measuring and reporting the mobility measurement quantities comprises:
monitoring for a SS/PBCH block measurement timing configuration (SMTC) duration; and
measuring and reporting the mobility measurement quantities for the first set of SS/PBCH blocks that overlap with the SMTC duration.

### Claim 16 (depends on 14)

The method of claim 14, wherein the mobility measurement quantities comprise a SS reference signal received power (SS-RSRP) for a subset of the first set of SS/PBCH blocks.

### Claim 17 (depends on 14)

The method of claim 14, wherein the mobility measurement quantities comprise a SS reference signal received quality (SS-RSRQ) for a subset of the first set of SS/PBCH blocks.

### Claim 18 (depends on 14)

The method of claim 14, further comprising performing rate matching of the PDSCH at data physical resource block (PRB) boundaries around a set of consecutive PRBs at least partially overlapping with an SS/PBCH block in orthogonal frequency-division multiplexing (OFDM) symbols containing the SS/PBCH block.

### Claim 19 (depends on 14)

The method of claim 14, further comprising performing rate matching of the PDSCH around an entire bandwidth part (BWP) bandwidth in orthogonal frequency-division multiplexing (OFDM) symbols containing the SS/PBCH block.

### Claim 20 (depends on 14)

The method of claim 14, wherein SS/PBCH block periodicities are separately configured for PDSCH rate matching and mobility measurement purposes.
