# US 11,310,817 B2 · Downlink channel rate matching of synchronization signal block transmissions in a new radio wireless communication system

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- Number: US 11,310,817 B2
- Document ID: US11310817B2
- Status: Granted
- Kind: B2
- Application number: 16/690,422
- Filed: 2019-11-21
- Published: 2020-03-19
- Granted: 2022-04-19
- Earliest claimed: 2017-01-10
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Heechoon Lee; Tao Luo; Xiaoxia Zhang; Bilal Sadiq; Makesh Pravin John Wilson
- Web page: https://patentgrep.com/patent/US11310817B2

## CPC

- H04W 72/1273: of downlink data flows
- H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH}
- 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 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W 56/0005: {synchronizing of arrival of multiple uplinks}
- H04W 72/12: Wireless traffic scheduling
- H04W 76/27: Transitions between radio resource control [RRC] states
- H04L 1/00: Arrangements for detecting or preventing errors in the information received {(correcting synchronisation H04L7/00)}
- H04L 1/1819: {with retransmission of additional or different redundancy}
- H04L 5/001: {the frequencies being arranged in component carriers}
- H04L 5/0023: {Time-frequency-space}
- H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 27/261: {Details of reference signals}
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a 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 configurable new radio (NR) resource scheduling and indication transmission procedure that may be executed by a base station and a user equipment (UE) is disclosed. For example, a base station may determine a number of synchronization signal blocks available for transmission of non-scheduling data, and transmit an indication signifying at least one of the number of synchronization signal blocks or a location of each of the number of synchronization signal blocks. Further, a UE may receiving an indication signifying at least one of a number of synchronization signal blocks or a location of each of the number of synchronization signal blocks. The UE may further determine one or more resource elements forming the number of synchronization signal blocks where non-scheduling data has been scheduled for transmission. The UE may receive the non-scheduling data within the one or more resource elements forming the number of synchronization signal blocks.

## Claims

### Claim 1

A method of wireless communications, comprising:
identifying a number of one or more synchronization signal blocks and a location of the one or more synchronization signal blocks available for physical downlink shared channel (PDSCH) transmission;
scheduling the PDSCH transmission within one or more resource elements forming the one or more synchronization signal blocks available for PDSCH transmission;
configuring an indication to signify the number and the location of the one or more synchronization signal blocks available for PDSCH transmission;
transmitting, on a downlink channel, the indication signifying the number and the location of the one or more synchronization signal blocks available for PDSCH transmission; and
providing PDSCH rate matching with respect to synchronization signal block transmissions.

### Claim 2 (depends on 1)

The method of claim 1, wherein the one or more synchronization signal blocks are determined at a radio resource control (RRC) layer.

### Claim 3 (depends on 1)

The method of claim 1, wherein the downlink channel corresponds to a physical downlink shared channel (PDSCH).

### Claim 4 (depends on 1)

The method of claim 1, wherein the one or more synchronization signal blocks correspond to at least one of:
a single synchronization signal block,
two or more consecutive synchronization signal blocks, or
two or more non-consecutive synchronization signal blocks.

### Claim 5 (depends on 1)

The method of claim 1, further comprising identifying that the one or more resource elements forming the one or more synchronization signal blocks are available for PDSCH transmission.

### Claim 6 (depends on 1)

The method of claim 1, further comprising identifying whether to utilize unused or available resource elements from at least one synchronization signal block for data transmission on the PDSCH.

### Claim 7 (depends on 1)

The method of claim 1, wherein providing PDSCH rate matching includes providing downlink control information that has a current slot rate matching.

### Claim 8 (depends on 1)

The method of claim 1, wherein providing PDSCH rate matching includes providing downlink control information that has a future slot rate matching.

### Claim 9

A method of wireless communications at a user equipment (UE), comprising:
receiving, on a downlink channel, an indication signifying a number and a location of one or more synchronization signals for PDSCH transmission;
identifying one or more resource elements forming the one or more synchronization signal blocks where physical downlink shared channel (PDSCH) transmission has been scheduled based on the indication signifying the number and the location of the one or more synchronization signal blocks; and
receiving the PDSCH transmission within the one or more resource elements forming the one or more synchronization signal blocks, wherein the PDSCH transmission is rate matched with respect to synchronization signal block transmissions.

### Claim 10 (depends on 9)

The method of claim 9, wherein the one or more synchronization signal blocks are configured at a radio resource control (RRC) layer.

### Claim 11 (depends on 9)

The method of claim 9, wherein the one or more synchronization signal blocks correspond to at least one of:
a single synchronization signal block,
two or more consecutive synchronization signal blocks, or
two or more non-consecutive synchronization signal blocks.

### Claim 12 (depends on 9)

The method of claim 9, wherein the downlink channel corresponds to a physical downlink shared channel (PDSCH).

### Claim 13

An apparatus for wireless communication, comprising:
a memory; and
at least one processor in communication with the memory and configured to:
identify a number of one or more synchronization signal blocks and a location of the one or more synchronization signal blocks available for physical downlink shared channel (PDSCH) transmission;
schedule the PDSCH transmission within one or more resource elements forming the one or more synchronization signal blocks available for PDSCH transmission;
configure an indication to signify the number and the location of the one or more synchronization signal blocks available for PDSCH transmission;
transmit, on a downlink channel, the indication signifying the number and the location of the one or more synchronization signal blocks available for PDSCH transmission; and
provide PDSCH rate matching with respect to synchronization signal block transmissions.

### Claim 14 (depends on 13)

The apparatus of claim 13, wherein the one or more synchronization signal blocks are determined at a radio resource control (RRC) layer.

### Claim 15 (depends on 13)

The apparatus of claim 13, wherein the downlink channel corresponds to a physical downlink shared channel (PDSCH).

### Claim 16 (depends on 13)

The apparatus of claim 13, wherein the one or more synchronization signal blocks correspond to at least one of:
a single synchronization signal block,
two or more consecutive synchronization signal blocks, or
two or more non-consecutive synchronization signal blocks.

### Claim 17 (depends on 13)

The apparatus of claim 13, wherein the at least one processor is configured to identify that the one or more resource elements forming the one or more synchronization signal blocks are available for PDSCH transmission.

### Claim 18

A user equipment, comprising:
a memory; and
at least one processor in communication with the memory and configured to:
receive, on a downlink channel, an indication signifying a number and a location of one or more synchronization signals for PDSCH transmission;
identify one or more resource elements forming the one or more synchronization signal blocks where physical downlink shared channel (PDSCH) transmission has been scheduled based on the indication signifying the number and the location of the one or more synchronization signal blocks; and
receive the PDSCH transmission within the one or more resource elements forming the one or more synchronization signal blocks, wherein the PDSCH transmission is rate matched with respect to synchronization signal block transmissions.

### Claim 19 (depends on 18)

The user equipment of claim 18, wherein the one or more synchronization signal blocks are configured at a radio resource control (RRC) layer.

### Claim 20 (depends on 18)

The user equipment of claim 18, wherein the one or more synchronization signal blocks correspond to at least one of:
a single synchronization signal block,
two or more consecutive synchronization signal blocks, or
two or more non-consecutive synchronization signal blocks.

### Claim 21 (depends on 18)

The user equipment of claim 18, wherein the downlink channel corresponds to a physical downlink shared channel (PDSCH).
