18125966. DYNAMIC SPECTRUM SHARING (DSS) BETWEEN NEW RADIO (NR) AND LONG TERM EVOLUTION (LTE) simplified abstract (Apple Inc.)

DYNAMIC SPECTRUM SHARING (DSS) BETWEEN NEW RADIO (NR) AND LONG TERM EVOLUTION (LTE)

Organization Name

Apple Inc.

Inventor(s)

Chunhai Yao of Beijing (CN)

Chunxuan Ye of San Diego CA (US)

Dawei Zhang of Cupertino CA (US)

Sigen Ye of San Diego CA (US)

Hong He of Cupertino CA (US)

Seyed Ali Akbar Fakoorian of San Diego CA (US)

Weidong Yang of San Diego CA (US)

Haitong Sun of Cupertino CA (US)

Huaning Niu of Cupertino CA (US)

Wei Zeng of Cupertino CA (US)

DYNAMIC SPECTRUM SHARING (DSS) BETWEEN NEW RADIO (NR) AND LONG TERM EVOLUTION (LTE) - A simplified explanation of the abstract

This abstract first appeared for US patent application 18125966 titled 'DYNAMIC SPECTRUM SHARING (DSS) BETWEEN NEW RADIO (NR) AND LONG TERM EVOLUTION (LTE)

Simplified Explanation

The abstract describes a base station that enables dynamic spectrum sharing between new radio (NR) services and Long Term Evolution (LTE) services. The base station can determine if there is a partial overlap between a NR physical downlink control channel (PDCCH) control resource set (CORESET) and a LTE PDCCH frequency range in a frequency domain. If a partial overlap occurs, the base station can map a NR PDCCH or a NR PDCCH demodulation reference signal (DMRS) to resource elements in the second frequency region, and map a LTE cell-specific reference signal (CRS) to a symbol carrying the LTE CRS in the first frequency region.

• The base station supports dynamic spectrum sharing between NR and LTE services.
• It determines if there is a partial overlap between NR PDCCH CORESET and LTE PDCCH frequency range.
• If a partial overlap occurs, it maps NR PDCCH or NR PDCCH DMRS to resource elements in the second frequency region.
• It maps LTE CRS to a symbol carrying the LTE CRS in the first frequency region.

Potential applications of this technology:

• Improved spectrum utilization by allowing NR and LTE services to coexist in the same frequency domain.
• Enhanced efficiency and flexibility in deploying and managing wireless networks.
• Seamless integration of NR and LTE services for better user experience.

Problems solved by this technology:

• Efficient allocation of spectrum resources between NR and LTE services.
• Minimization of interference between NR and LTE services.
• Simplification of network deployment and management by enabling dynamic spectrum sharing.

Benefits of this technology:

• Increased capacity and coverage of wireless networks.
• Enhanced user experience with improved network performance.
• Cost savings through optimized spectrum utilization and network deployment.

Original Abstract Submitted

A base station can support dynamic spectrum sharing (DSS) between new radio (NR) services and Long Term Evolution (LTE) services. The base station can determine whether a NR physical downlink control channel (PDCCH) control resource set (CORESET) and a LTE PDCCH frequency range are partially overlapped in a frequency domain including a first frequency region and a second frequency region. The partial overlap occurs when the LTE PDCCH frequency range overlaps with the NR PDCCH CORESET in the first frequency region without overlapping with the NR PDCCH CORESET in the second frequency region. In response to a determination that the partial overlap occurs, the base station can map a NR PDCCH or a NR PDCCH demodulation reference signal (DMRS) to resource elements in the second frequency region, and map a LTE cell-specific reference signal (CRS) to a symbol carrying the LTE CRS in the first frequency region.