17998024. LTE-NR RELATIVE TIMING INDICATION simplified abstract (QUALCOMM Incorporated)
Contents
LTE-NR RELATIVE TIMING INDICATION
Organization Name
Inventor(s)
Xipeng Zhu of San Diego CA (US)
Arvind Vardarajan Santhanam of San Diego CA (US)
Luis Fernando Brisson Lopes of Swindon (GB)
Neel Tej Adusumilli of San Diego CA (US)
LTE-NR RELATIVE TIMING INDICATION - A simplified explanation of the abstract
This abstract first appeared for US patent application 17998024 titled 'LTE-NR RELATIVE TIMING INDICATION
Simplified Explanation
The abstract describes a patent application related to the sharing of timing information between multiple base stations in a cellular network. This allows for dual connectivity of user equipment (UE) with two different cells. The first cell determines the system frame number (SFN) and frame timing difference (SFTD) between itself and the second cell. The first cell then sends an indication of the SFTD to the second cell via a backhaul connection. The second cell can use this information to determine the cell level SFTD. Additionally, a positioning network entity can also determine the cell level SFTD.
- Two or more base stations share timing information.
- First cell determines SFN and SFTD between itself and second cell.
- UE can be configured with dual connectivity with both cells.
- First cell sends indication of SFTD to second cell via backhaul connection.
- Second cell determines cell level SFTD using the received information.
- Positioning network entity can also determine cell level SFTD.
Potential Applications
- Improved handover between cells in a cellular network.
- Enhanced positioning accuracy for location-based services.
- More efficient resource allocation in a multi-cell network.
Problems Solved
- Inaccurate timing synchronization between cells.
- Difficulties in maintaining seamless connectivity during handovers.
- Limited accuracy in determining the position of a UE in a multi-cell network.
Benefits
- Improved user experience with smoother handovers and better connectivity.
- Enhanced accuracy in determining the location of a UE.
- Increased efficiency in resource allocation, leading to better network performance.
Original Abstract Submitted
Two or more base stations may share relative timing information. For example, a first cell may determining a cell level system frame number (SFN) and frame timing difference (SFTD) between the first cell and a second cell. At least one user equipment (UE) can be configured with dual connectivity with the first cell and the second cell. The first cell may send an indication of the cell level SFTD to the second cell via a backhaul with the second cell. The indication of the cell level SFTD may be the determined SFTD or a SFN reference time. In some implementations, the first cell may send a the SFTD measurement result and assistance information to the second cell via a backhaul to the second cell. The second cell may determine the cell level SFTD. In some implementations, a positioning network entity may determine the cell level SFTD.
