18455448. Sidelink Control Information Processing simplified abstract (APPLE INC.)

Sidelink Control Information Processing

Organization Name

APPLE INC.

Inventor(s)

Chunxuan Ye of San Diego CA (US)

Weidong Yang of San Diego CA (US)

Oghenekome Oteri of San Diego CA (US)

Chunhai Yao of Beijing (CN)

Dawei Zhang of Saratoga CA (US)

Haitong Sun of Irvine CA (US)

Hong He of Cupertino CA (US)

Jie Cui of San Jose CA (US)

Wei Zeng of San Diego CA (US)

Yang Tang of Cupertino CA (US)

Yuchul Kim of Santa Clara CA (US)

Yushu Zhang of Beijing (CN)

Sidelink Control Information Processing - A simplified explanation of the abstract

This abstract first appeared for US patent application 18455448 titled 'Sidelink Control Information Processing

Simplified Explanation

The patent application describes a wireless device that can perform sidelink cellular communications using a two-stage sidelink control information (SCI) protocol. The device uses a physical sidelink control channel (PSCCH) for Stage 1 SCI messaging and a physical sidelink shared channel (PSSCH) for Stage 2 SCI messaging. Polar codes are used to encode the SCI messaging, and channel interleaving is used to interleave the SCI between multiple layers of a MIMO transmission system. Scrambling for Stage 2 SCI messaging is based on a cyclic redundancy check (CRC) performed on Stage 1 SCI messaging, and collisions between sidelink HARQ feedback and other transmissions are avoided through a priority analysis.

• Wireless device for vehicle-to-everything (V2X) communications
• Performs sidelink cellular communications using a two-stage SCI protocol
• Stage 1 SCI messaging carried on a PSCCH and Stage 2 SCI messaging carried on a PSSCH
• SCI messaging encoded using polar codes
• Channel interleaving used to interleave SCI between MIMO transmission system layers
• Scrambling for Stage 2 SCI messaging based on CRC result of Stage 1 SCI messaging
• Avoids collisions between sidelink HARQ feedback and other transmissions through priority analysis

Potential Applications

• V2X communications in vehicles for improved safety and efficiency
• Communication between vehicles and infrastructure for traffic management
• Vehicle-to-vehicle communication for cooperative driving and collision avoidance

Problems Solved

• Efficient and reliable sidelink cellular communications for V2X devices
• Avoiding collisions between sidelink HARQ feedback and other transmissions
• Interleaving and encoding techniques for improved SCI messaging

Benefits

• Improved safety and efficiency in V2X communications
• Enhanced traffic management and coordination between vehicles and infrastructure
• More reliable and efficient communication for cooperative driving and collision avoidance.

Original Abstract Submitted

Embodiments are presented herein of apparatuses, systems, and methods for a vehicle-to-everything (V2X) capable wireless device configured to perform sidelink cellular communications. The wireless device performs sidelink communications using a two-stage sidelink control information (SCI) protocol including Stage 1 SCI messaging carried on a physical sidelink control channel (PSCCH), and Stage 2 SCI messaging carried on a physical sidelink shared channel (PSSCH). The SCI messaging may be encoded using polar codes. Channel interleaving is utilized on the SCI to interleave the SCI between two or more layers of a MIMO transmission system. Scrambling for Stage 2 SCI messaging is performed based on the result of a cyclic redundancy check (CRC) performed on Stage 1 SCI messaging. Collisions between sidelink HARQ feedback to be transmitted to a base station and other transmissions are avoided based on a priority analysis of the sidelink HARQ feedback.