18063066. TECHNIQUES FOR UPDATING REFERENCE SIGNALS simplified abstract (QUALCOMM Incorporated)

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TECHNIQUES FOR UPDATING REFERENCE SIGNALS

Organization Name

QUALCOMM Incorporated

Inventor(s)

Yan Zhou of San Diego CA (US)

Tao Luo of San Diego CA (US)

Ruhua He of San Diego CA (US)

Stefan Brueck of Neunkirchen am brand (DE)

Parisa Cheraghi of Cambridge (GB)

TECHNIQUES FOR UPDATING REFERENCE SIGNALS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18063066 titled 'TECHNIQUES FOR UPDATING REFERENCE SIGNALS

Simplified Explanation

Methods, systems, and devices for wireless communications are described in this patent application. The techniques described allow for dynamic updates to beam failure detection (BFD) reference signals (RSs) and path loss RS using medium access control-control element (MAC-CE) or downlink control information (DCI).

  • The periodic CSI-RS used for BFD RS can be dynamically updated by the MAC-CE or DCI through the quasi co-location (QCL) technique.
  • A semi-persistent CSI-RS or aperiodic CSI-RS can also serve as a BFD RS.
  • An enhanced update procedure is used to dynamically update the path loss RS parameters using MAC-CE or DCI.
  • The updated path loss RS parameters may overwrite the previously configured path loss RS parameters set by the radio resource control (RRC).
  • If the path loss RS is not configured, the default path loss RS is the spatial relation reference signal of the corresponding uplink beam.

Potential Applications

  • This technology can be applied in wireless communication systems to improve beam failure detection and path loss reference signal updates.
  • It can enhance the reliability and efficiency of wireless communication networks.

Problems Solved

  • The dynamic updates to BFD RS and path loss RS address the challenges of maintaining accurate and up-to-date reference signals in wireless communication systems.
  • The enhanced update procedure ensures that the path loss RS parameters are updated in a timely manner, improving the overall performance of the system.

Benefits

  • The dynamic updates provided by this technology enable more efficient and reliable beam failure detection in wireless communication systems.
  • The ability to update path loss RS parameters using MAC-CE or DCI improves the accuracy of path loss measurements, leading to better system performance.


Original Abstract Submitted

Methods, systems, and devices for wireless communications are described. The described techniques provide for dynamic updates to beam failure detection (BFD) reference signals (RSs) and path loss RS using medium access control-control element (MAC-CE) or downlink control information (DCI). For example, the quasi co-location (QCL) of periodic CSI-RS may be dynamically updated by the MAC-CE or DCI when the periodic CSI-RS is for BFD RS. Also, a semi-persistent CSI-RS or aperiodic CSI-RS may act as a BFD RS. An enhanced update procedure may be used to update the path loss RS dynamically using MAC-CE or DCI. In some cases, the path loss RS parameters updated via MAC-CE or DCI may overwrite the previously RRC configured path loss RS parameters. In another example, if the path loss RS is not configured, then the path loss RS by default may be the spatial relation reference signal of the corresponding uplink beam.

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