# US 12,224,871 B2 · Methods and apparatuses for transmitting and receiving sidelink information

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- Number: US 12,224,871 B2
- Document ID: US12224871B2
- Status: Granted
- Kind: B2
- Application number: 17/217,051
- Filed: 2021-03-30
- Published: 2021-07-15
- Granted: 2025-02-11
- Earliest claimed: 2018-11-02
- Assignees: Fujitsu Limited
- Applicants: Fujitsu Limited
- Inventors: Jian Zhang; Pengyu Ji; Guorong Li; Lei Zhang; Xin Wang
- Web page: https://patentgrep.com/patent/US12224871B2

## CPC

- H04L 1/1664: {the supervisory signal being transmitted together with payload signals; piggybacking}
- H04L 1/1887: {Scheduling and prioritising arrangements}
- H04L 1/1819: {with retransmission of additional or different redundancy}
- H04L 1/1854: {Scheduling and prioritising arrangements}
- H04L 1/1896: {ARQ related signaling}
- 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 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04W 52/0212: {managed by the network, e.g. network or access point is leader and terminal is follower}
- H04W 72/02: Selection of wireless resources by user or terminal
- H04W 72/0466: {the resource being a scrambling code}
- H04W 92/18: between terminal devices
- Y02D 30/70: in wireless communication networks
- 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)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

Methods and apparatuses for transmitting and receiving sidelink information. The method includes: determining a priority/priorities of second data information and/or feedback information by a second device, allocating power for the second data information and/or the feedback information according to the priority/priorities; and/or scrambling and/or indicating the second data information and/or the feedback information by the second device by using an identifier. Hence, supporting multiple unicast sessions or groupcast sessions by the same device may be achieved.

## Claims

### Claim 1

An apparatus for transmitting sidelink information, configured in a second device, comprising:
a memory that stores a plurality of instructions; and
processor circuitry coupled to the memory and configured to execute the instructions to:
receive first sidelink data information and/or a reference signal transmitted by at least one first device;
indicate sidelink feedback information for the first sidelink data information and/or reference signal by using an identifier; and
transmit to the at least one first device the indicated sidelink feedback information,
wherein the identifier comprises an identifier of the first device and an identifier of the second device, and wherein the processor circuitry is configured to, according to the identifier of the first device and the identifier of the second device, determine a cyclic shift used by the sidelink feedback information.

### Claim 2 (depends on 1)

The apparatus according to claim 1, wherein the identifier further comprises at least one of the following: a session identifier, a sidelink identifier, a device group identifier.

### Claim 3 (depends on 1)

The apparatus according to claim 1, wherein the processor circuitry is configured to contain at least a part of the identifier in payloads/a payload of the sidelink feedback information.

### Claim 4 (depends on 1)

The apparatus according to claim 1, wherein the processor circuitry is further configured to add cyclic redundancy check into the sidelink feedback information using RM coding or channel coding of a small block length, and/or, add cyclic redundancy check into the sidelink feedback information less than or equal to 2 bits.