Overview of LTE Spectrum Sharing Technologies

Yun, Ye; Wu, Dalei; Shu, Zhihui; Qian, Yi

doi:10.1109/access.2016.2626719

Cited by 39 publications

(28 citation statements)

References 13 publications

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“…The die microphotograph of the fabricated LNA and the corresponding transistors and inductor sizes are shown in Figure 13, with the die area including pads of 0.75 × 0.69 mm 2 . The target frequencies of the proposed triple-band LNAs were 2.5, 3.5, and 5.2 GHz, which can be used in TD-LTE, mid-band 5G, LTE-U, and WLAN technology.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, 3.4-3.8 GHz is also the range for mid-band 5G communications for the EU licensed band [17]. The shared 5-GHz LTE-U band ranges from 5.150 to 5.925 GHz [2]. Furthermore, WLAN (IEEE 802.11a/b/g/n/ac) covers a frequency range of 2.4-2.5 and 5.1-5.9 GHz.…”

Section: Circuit Design and Analysismentioning

confidence: 99%

“…At present, the major TD-LTE frequency bands are 2.3 GHz (Band 40), 2.6 GHz (Band 41), and 3.5 GHz (Bands 42 and 43) [1]. To further boost the performance of LTE and provide faster and more secure mobile services, using LTE-unlicensed (LTE-U) band in the unlicensed 5-GHz spectrum with a cost-effective method is considered a favorable solution for achieving a larger bandwidth [2]. To further increase the traffic capacity, 5G communication technology has been proposed, and the Radio Spectrum Policy Group (RSPG) adopts the 3.6 GHz band for 5G communication in Europe [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…5 GHz band provides less than 800 MHz 2. 2 GHz band lacks for time-division long-term evolution (TD-LTE) Band 40.3 Simulation result 4.…”

mentioning

confidence: 99%

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Switched Low-Noise Amplifier Using Gyrator-Based Matching Network for TD-LTE/LTE-U/Mid-Band 5G and WLAN Applications

et al. 2021

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This paper presents a triple-band low-noise amplifier (LNA) fabricated using a 0.18 μm Complementary Metal-Oxide-Semiconductor (CMOS) process. The LNA uses a double-peak load network with a switched component to accomplish the triple-band operation. Moreover, noise reduction using a substrate resistor to ameliorate the noise performance is presented. Noise reduction of 1.5 dB can be achieved at 2.5 GHz without additional dc power and extra manufacturing costs. An input matching technique is realized simultaneously using a gyrator-based feedback topology. The triple-band LNA can be realized by using a dual-band input network with a switched matching mechanism. The target frequencies of the triple-band LNA are 2.3–2.7 GHz, 3.4–3.8 GHz, and 5.1–5.9 GHz, covering the operating frequency bands of time-division long-term evolution (TD-LTE), mid-band Fifth-generation (5G), LTE-unlicensed (LTE-U) band, and Wireless LAN (WLAN) technology. The measured power gains and noise figures at 2.5, 3.5, and 5.2 GHz are 12.3, 15.3, and 13.1 dB and 2.3, 2.2, and 2.6 dB, respectively.

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Section: Discussionmentioning

confidence: 99%

Section: Circuit Design and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…5 GHz band provides less than 800 MHz 2. 2 GHz band lacks for time-division long-term evolution (TD-LTE) Band 40.3 Simulation result 4.…”

mentioning

confidence: 99%

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Switched Low-Noise Amplifier Using Gyrator-Based Matching Network for TD-LTE/LTE-U/Mid-Band 5G and WLAN Applications

et al. 2021

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“…Despite of its continuous availability, radio waves arises concern of EMI/EMC of penetrating through human body; subjected to risk by World Health Organization . At the midst of it, RF energy harvesting is still considered as robust, trustworthy and feasible solution for meeting the increasing power requirements of low power embedded devices in both consumer and commercial usage.…”

Section: Rf Fundamentalsmentioning

confidence: 99%

Microwave antennas—An intrinsic part of RF energy harvesting systems: A contingent study about its design methodologies and state‐of‐art technologies in current scenario

Behera

Meher

Mishra

2020

Int J RF Microw Comput Aided Eng

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With the significant rise of low power embedded devices in various applications of both consumer and commercial usage, the surge for continuous power requirements has initiated promising research toward alternative sources of energy. It includes the domain of wireless power transmission, internet‐of‐things, wireless sensor nodes, machine‐to‐machine, and radio frequency identification. Thus, the overall scope of this review article is to witness microwave antennas and its implementation in RF energy harvesting system through ambient RF signals. For this reason, unified understanding of classical electromagnetism is needed; beginning with the fundamentals of RF transmission and the exploration of concepts such as Fraunhofer's Distance and Friis Transmission Equation. It is followed up by the analogy of dependency of parameters like circuit build‐up, conversion efficiencies and amount of power harvested, which is quite crucial from the rectifier point‐of‐view. For better improvisement in RF energy harvesting systems, five different cases of monopole antennas are explored with reflector surfaces such as PEC (perfect electrical conductor) and AMC (artificial magnetic conductor) integrated with the rectifier circuit. Implementation with wide diversity has proposed a generalized solution for achieving tradeoffs: polarization and pattern diversity with consistent system efficiency; leads to clean and sustainable energy for low power‐embedded devices.

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Introduction

2021

Spectrum Sharing in Cognitive Radio Networks

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Overview of LTE Spectrum Sharing Technologies

Cited by 39 publications

References 13 publications

Switched Low-Noise Amplifier Using Gyrator-Based Matching Network for TD-LTE/LTE-U/Mid-Band 5G and WLAN Applications

Switched Low-Noise Amplifier Using Gyrator-Based Matching Network for TD-LTE/LTE-U/Mid-Band 5G and WLAN Applications

Microwave antennas—An intrinsic part of RF energy harvesting systems: A contingent study about its design methodologies and state‐of‐art technologies in current scenario

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