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This paper presents angular resolved path loss measurements conducted along the streets in a typical US suburban scenario at 28 GHz. It was observed that all Rx location up to 150 meters from the Tx had a detectable signal with path loss under 145 dB and all Rx location up to 200 meters had a detectable signal with path loss under 155 dB. It was also concluded that the LOS direction was the clearly...
Future communication systems will utilize multiple antennas and beamforming to a larger extent than what has been done before. Design and evaluation of systems with many antennas and large bandwidth requires channel models with good accuracy in angle and delay. An angular resolution down to one degree, and bandwidths of several GHz, are foreseen for the future 5G wireless systems. For this purpose,...
Knowledge about propagation properties and development of realistic channel models at higher frequencies are crucial for evaluations and design decisions in the upcoming 5G standardizations. One propagation phenomenon that requires special attention at higher frequencies is blocking by objects. In this paper, the propagation characteristics in the presence of street-level blocking objects at 15 GHz...
For the development of new 5G systems to operate in bands up to 100 GHz, there is a need for accurate radio propagation models at these bands that currently are not addressed by existing channel models developed for bands below 6 GHz. This document presents a preliminary overview of 5G channel models for bands up to 100 GHz. These have been derived based on extensive measurement and ray tracing results...
Future mobile communications systems are likely to be very different to those of today with new service innovations driven by increasing data traffic demand, increasing processing power of smart devices and new innovative applications. To meet these service demands the telecommunications industry is converging on a common set of 5G requirements which includes network speeds as high as 10 Gbps, cell...
This paper presents coverage and penetration loss measurements in an urban environment at 15 GHz to provide insight into the design and deployment of future 5G systems in higher frequency bands. The measurements are performed using a 5G radio access prototype including two transmission points (TPs) and a mobile terminal over a 200 MHz bandwidth. The TPs and the mobile terminal each consists of multiple...
With the continuous growth in connected devices and the need for larger bandwidth channels and greater data speeds, operating at high frequencies can be advantageous for future mobile communications in general, and for 5G-networks in particular. In this paper, the indoor coverage at different high frequencies, namely 10, 30 and 60 GHz has been analyzed in the context of a single building scenario...
The introduction of 8x8 MIMO and carrier aggregation in the 3GPP LTE Rel. 10 opens up for increased user throughput. The potential gains using these techniques have been evaluated in a field measurement campaign with a testbed implementation. A downlink throughput exceeding 1 Gbps has been achieved combining 8x8 MIMO in an outdoor macro scenario with carrier aggregation using three component carriers...
Relay technologies have been standardized in 3GPP long term evolution (LTE), and can be a useful tool for coverage extension in diverse deployments. The backhaul channel between the relay and its donor eNodeB is essential to the end-to-end relay performance. Recently there has been an increased interest in deployments with non-line-of-sight (NLoS) backhaul channel conditions. In this paper, the NLoS...
The potential link performance gains obtained with up to 8×8 MIMO transmissions as standardized in 3GPP LTE Release 10 have been evaluated in an indoor measurement campaign using a testbed implementation. For well-separated antennas, the results show increasing downlink throughput when increasing the number of transmit and receive antennas, up to a median throughput of 335 Mbps for an 8×8 MIMO configuration...
Multiple-antenna handheld terminals are an integral part of the latest mobile communication systems, due to the adoption of multiple-input multiple-output (MIMO) technology. In this contribution, MIMO performances of three multiple-antenna configurations for smart phones are investigated in an urban macrocellular environment, based on an extensive MIMO measurement campaign at 2.65 GHz. The smart phones...
In this paper the potential of downlink frequency selective scheduling (FSS) is addressed based on measurements in an experimental 3GPP Long Term Evolution (LTE) system setup. We find that scheduling on the best sub-band has the potential to improve channel conditions by up to 2 Channel Quality Indicator (CQI) units, which represents around 4 dB channel gain improvement. The time-frequency fading...
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