17907789. Over the Air Antenna Synchronization in Wireless Communication Network simplified abstract (Telefonaktiebolaget LM Ericsson (publ))
Contents
Over the Air Antenna Synchronization in Wireless Communication Network
Organization Name
Telefonaktiebolaget LM Ericsson (publ)
Inventor(s)
Magnus Sandgren of Staffanstorp (SE)
Over the Air Antenna Synchronization in Wireless Communication Network - A simplified explanation of the abstract
This abstract first appeared for US patent application 17907789 titled 'Over the Air Antenna Synchronization in Wireless Communication Network
Simplified Explanation
The patent application describes a procedure for accurately synchronizing antennas in a wireless communication system using a two-step synchronization process. The procedure involves deriving the propagation delay of radio signals transmitted between two radio network nodes and using this delay to align the antennas for transmission and reception.
- The procedure involves calibrating each radio network node to obtain a total calibrated delay, which includes the delays through the receiver and transmitter paths.
- In the second step, a pair of radio network nodes separately align their antenna timings, with one node acting as the master and the other as the slave.
Potential applications of this technology:
- Wireless communication systems that require accurate synchronization of antennas.
- Mobile networks, where synchronization is crucial for seamless handover between base stations.
- Internet of Things (IoT) networks, where synchronization is important for efficient data transmission.
Problems solved by this technology:
- Inaccurate synchronization of antennas can lead to signal interference and reduced network performance.
- Traditional synchronization methods may not be suitable for wireless communication systems with multiple nodes.
- This technology solves the problem of accurately aligning antennas for both transmission and reception.
Benefits of this technology:
- Improved network performance and reliability due to accurate antenna synchronization.
- Reduced signal interference and improved data transmission efficiency.
- Simplified calibration process for accurate delay estimation.
- Flexibility to synchronize antennas in a multi-node wireless communication system.
Original Abstract Submitted
An over the air, OTA, procedure derives a propagation delay (Formula I) of radio signals transmitted between a first radio network node (BS) and a second radio network node (BS) operative in a wireless communication system. Using this propagation delay, a two-step synchronization procedure accurately synchronizes, or time-aligns, antennas at the radio network nodes (BS, BS) for both transmission and reception. In a first step, each radio network node (BS, BS) is accurately calibrated, to obtain a total calibrated delay (Formula II) reflecting the sum of delays through a calibrated receiver path (Formula II) and a calibrated transmitter path (Formula III). In a second step, a pair of radio network nodes (BS, BS) separately align their antenna transmit and receive timings in a procedure in which a first radio network node (BS) is a master and a second radio network node (BS) is a slave.
