Qualcomm incorporated (20240121626). SSB-LESS OPERATION FOR INTER-BAND CARRIER AGGREGATION simplified abstract

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SSB-LESS OPERATION FOR INTER-BAND CARRIER AGGREGATION

Organization Name

qualcomm incorporated

Inventor(s)

Konstantinos Dimou of New York NY (US)

Changhwan Park of San Diego CA (US)

Ruhua He of San Diego CA (US)

Sumant Jayaraman Iyer of San Diego CA (US)

Jianghong Luo of Skillman NJ (US)

SSB-LESS OPERATION FOR INTER-BAND CARRIER AGGREGATION - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240121626 titled 'SSB-LESS OPERATION FOR INTER-BAND CARRIER AGGREGATION

Simplified Explanation

The abstract describes a patent application related to the synchronization of a secondary cell by a user equipment (UE) based on measurements and signals transmitted by a primary cell.

  • User equipment (UE) can indicate its capability to synchronize with a secondary cell based on measurements of the primary cell.
  • The UE can estimate the propagation delay (t) and angle of arrival (AoA) of the secondary cell using synchronization signal blocks (SSB) or channel state information reference signals (CSI-RS) from the primary cell.
  • Automatic gain control (AGC), fine timing synchronization, and fine frequency synchronization of the secondary cell can be performed by the UE using a temporary aperiodic tracking reference signal (A-TRS) from the secondary cell.
  • The UE can conduct a receive beam sweep on a burst of a CSI-RS from the secondary cell, with the range of the sweep based on the estimated AoA.

Potential Applications

This technology can be applied in:

  • 5G and future wireless communication systems
  • IoT devices requiring precise synchronization

Problems Solved

  • Improved synchronization accuracy between primary and secondary cells
  • Enhanced performance of UE in multi-cell communication scenarios

Benefits

  • Increased data transmission efficiency
  • Better network coverage and reliability
  • Enhanced user experience in terms of connectivity

Potential Commercial Applications

  • Telecommunication companies for improving network performance
  • IoT device manufacturers for reliable connectivity solutions

Possible Prior Art

One possible prior art could be the use of beamforming techniques in wireless communication systems to improve signal reception and transmission.

Unanswered Questions

How does this technology impact battery life of the user equipment (UE)?

The abstract does not mention the potential impact of this technology on the battery life of the UE. It would be interesting to know if the synchronization process affects power consumption.

Are there any limitations to the range of the receive beam sweep based on the estimated AoA?

The abstract does not specify any limitations to the range of the receive beam sweep. It would be important to understand if there are constraints on the accuracy of the estimated AoA and its impact on the beam sweep range.


Original Abstract Submitted

a user equipment (ue) may transmit, to a primary cell, an indication of a capability to synchronize with a secondary cell based on measurements of the primary cell. a ue may estimate a propagation delay (t) and an angle of arrival (aoa) of the secondary cell based on a synchronization signal block (ssb) or a channel state information reference signal (csi-rs) transmitted by the primary cell. a ue may perform automatic gain control (agc), fine timing synchronization, and fine frequency synchronization of the secondary cell based on a temporary aperiodic tracking reference signal (a-trs) transmitted by the secondary cell. a ue may perform a receive beam sweep on a burst of a csi-rs transmitted by the secondary cell, wherein a range of the receive beam sweep is based on the estimated aoa.

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