18362020. INDICATION OF PHASE TRACKING REFERENCE SIGNAL (PTRS) PORTS ASSOCIATION WITH DEMODULATION REFERENCE SIGNAL (DMRS) PORTS simplified abstract (Apple Inc.)

INDICATION OF PHASE TRACKING REFERENCE SIGNAL (PTRS) PORTS ASSOCIATION WITH DEMODULATION REFERENCE SIGNAL (DMRS) PORTS

Organization Name

Apple Inc.

Inventor(s)

Haitong Sun of Cupertino CA (US)

Sigen Ye of San Diego CA (US)

Chunxuan Ye of San Diego CA (US)

Huaning Niu of San Jose CA (US)

Seyed Ali Akbar Fakoorian of San Diego CA (US)

Hong He of San Jose CA (US)

Dawei Zhang of Saratoga CA (US)

Wei Zeng of Saratoga CA (US)

Oghenekome Oteri of San Diego CA (US)

INDICATION OF PHASE TRACKING REFERENCE SIGNAL (PTRS) PORTS ASSOCIATION WITH DEMODULATION REFERENCE SIGNAL (DMRS) PORTS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18362020 titled 'INDICATION OF PHASE TRACKING REFERENCE SIGNAL (PTRS) PORTS ASSOCIATION WITH DEMODULATION REFERENCE SIGNAL (DMRS) PORTS

Simplified Explanation

Some aspects of this disclosure relate to apparatuses and methods for supporting the transmission of phase tracking reference signals (PTRS) based on an association between PTRS ports and demodulation reference signals (DMRS) ports for a user equipment (UE) with multiple uplink (UL) antenna elements.

• The UE receives downlink control information (DCI) with an association indication in an association field to indicate the association between PTRS ports and DMRS ports.
• The association field's bit width is determined based on the UE's antenna architecture, including the number of UL antenna elements.
• The UE determines the DMRS port associated with a PTRS port based on the association indication and the antenna architecture.

1. 1. 1. Potential Applications

• 5G and future wireless communication systems
• Mobile devices with multiple antenna elements

1. 1. 1. Problems Solved

• Efficient transmission of PTRS for phase tracking
• Improved demodulation accuracy with associated DMRS ports

1. 1. 1. Benefits

• Enhanced signal quality
• Increased data transmission reliability
• Better performance in multi-antenna systems

Original Abstract Submitted

Some aspects of this disclosure relate to apparatuses and methods for supporting the transmission of phase tracking reference signals (PTRS) based on an association between one or more PTRS ports and one or more demodulation reference signals (DMRS) ports for a user equipment (UE) having multiple uplink (UL) antenna elements. The UE can receive a downlink control information (DCI) including an association indication contained in an association field of the DCI to indicate an association between one or more PTRS ports and one or more DMRS ports. The association field can have a bit width determined based on an antenna architecture of the UE including the number of UL antenna elements. The UE can further determine a DMRS port associated with a PTRS port based on the association indication contained in the association field and the antenna architecture.