Vehicular UE RF Standards for FR2-2 Band Reliability
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Solution Overview
Problem
The existing RF performance standards for vehicular User Equipments (UEs) supporting the FR2-2 band in 3GPP LTE systems do not adequately address the unique requirements for vehicular UE RF performance, particularly in terms of reference sensitivity and EIS spherical coverage, which are crucial for reliable communication in the 52.6 GHz to 71 GHz frequency range.
Innovation Solution
Proposing specific RF performance standards for vehicular UEs in the FR2-2 band, including reference sensitivity and EIS spherical coverage requirements, tailored to the number of antenna elements and channel bandwidths, to ensure reliable communication, with configurations such as 8Ant, 16Ant, and 32Ant array antenna modules, and considering the presence or absence of a ground plane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of array antennas is increased to improve RF performance in FR2-2 band, then reference sensitivity and EIS spherical coverage are improved, but device complexity and heat generation increase
Solution Approach 1:
The patent defines RF performance standards by changing key parameters including reference sensitivity values and EIS spherical coverage requirements tailored to different antenna configurations (8Ant, 16Ant, 32Ant). These parameter changes allow optimization of RF performance while managing complexity through standardized performance thresholds rather than requiring maximum antenna elements.
2Reliability
If the number of array antennas is increased to improve EIS spherical coverage, then communication reliability is improved, but heat generation increases
Solution Approach 1:
The patent establishes EIS spherical coverage requirements as specific performance parameters that define the thermal and performance boundaries. By setting these parameters for different antenna configurations, the standard allows systems to achieve reliable communication while controlling heat generation through defined performance thresholds rather than continuously increasing antenna power.
3Adaptability or versatility
If reference sensitivity and EIS spherical coverage standards are defined to ensure reliable communication, then network compatibility is improved, but antenna complexity increases
Solution Approach 1:
The patent creates universal RF performance standards that apply across multiple antenna configurations (8Ant, 16Ant, 32Ant) and vehicle types. These standardized reference sensitivity and EIS spherical coverage requirements provide network compatibility while avoiding the need for complex, customized antenna systems for each scenario.
Data Source
AI summary
One disclosure of the present specification provides a method for performing communication by a user equipment (UE). The method comprises the steps of: receiving a downlink signal from a base station, wherein the downlink signal is received via n263 operation band in FR2-2 (Frequency Range2-2), wherein the UE is a power class 2 UE, wherein the UE satisfies REFSENS (Reference Sensitivity) on a first channel bandwidth, wherein, based on the first channel bandwidth being 100 MHz, the REFSENS is −86.3 dBm, wherein, based on the first channel bandwidth being 400 MHz, the REFSENS is −80.3 dBm, wherein, based on the first channel bandwidth being 800 MHz, the REFSENS is −77.3 dBm, wherein, based on the first channel bandwidth being 1600 MHz, the REFSENS is −74.3 dBm, wherein, based on the first channel bandwidth being 2000 MHz, the REFSENS is −73.3 dBm.