17542253. LTE-CRS BASED RATE-MATCHING OR PUNCTURING FOR NR PDCCH simplified abstract (QUALCOMM Incorporated)

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LTE-CRS BASED RATE-MATCHING OR PUNCTURING FOR NR PDCCH

Organization Name

QUALCOMM Incorporated

Inventor(s)

Kazuki Takeda of Tokyo (JP)

Alberto Rico Alvarino of San Diego CA (US)

LTE-CRS BASED RATE-MATCHING OR PUNCTURING FOR NR PDCCH - A simplified explanation of the abstract

This abstract first appeared for US patent application 17542253 titled 'LTE-CRS BASED RATE-MATCHING OR PUNCTURING FOR NR PDCCH

Simplified Explanation

The present disclosure provides techniques for adjusting PDCCH processing or PDCCH DMRS processing to avoid interference with LTE cell-specific reference signals (CRS). Here are the key points:

  • The techniques involve adjusting the processing of physical downlink control channel (PDCCH) and PDCCH demodulation reference signal (DMRS) of a first radio access technology (RAT), such as LTE.
  • The adjustment is based on whether the resource elements (REs) of a PDCCH candidate in a PDCCH monitoring occasion of the first RAT overlap with the REs of a CRS of a second RAT, such as 5G new radio (NR).
  • The UE (user equipment) then monitors the PDCCH candidate in the PDCCH monitoring occasion based on the adjustment made.

Potential applications of this technology:

  • This technology can be applied in multi-RAT environments where LTE and 5G NR coexist.
  • It can be used to ensure efficient and interference-free PDCCH processing in LTE networks.
  • The techniques can be implemented in UE devices to improve the overall performance and reliability of wireless communication.

Problems solved by this technology:

  • Interference between LTE CRS and PDCCH processing can lead to degraded performance and reduced throughput.
  • By adjusting the PDCCH processing based on the overlap with CRS, this technology helps avoid interference and improves the overall quality of wireless communication.

Benefits of this technology:

  • Improved efficiency and reliability of PDCCH processing in LTE networks.
  • Enhanced performance and reduced interference in multi-RAT environments.
  • Better overall user experience and higher data rates in wireless communication systems.


Original Abstract Submitted

Certain aspects of the present disclosure provide techniques for adjusting PDCCH processing or PDCCH DMRS processing, such as to avoid cell-specific reference signal (CRS) of long-term-revolution (LTE). For example, a UE may adjust at least one of physical downlink control channel (PDCCH) processing or PDCCH demodulation reference signal (DMRS) processing of a first radio access technology (RAT), such as LTE, based on whether one or more resource elements (REs) of a PDCCH candidate in a PDCCH monitoring occasion of the first RAT is configured as overlapping with one or more REs of a CRS of a second RAT, such as 5G new radio (NR). The UE then monitors PDCCH candidate in the PDCCH monitoring occasion based on the adjusting.

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