The double-direction channel describes the angular pairing of rays connecting a base station (BS) to its user terminal (UE). This paper presents double-directional experimental measurements for an Urban Micro-cellular (UMi) campus environment at millimetre wave frequencies. Results showed that multiple Angles of Departure (AoD) from a given UE position often result in few (often one) Angles of Arrival (AoA) at the BS. Similarly different UE locations can often share a common angle of arrival at the BS. Three AoA’s covered all the dominant transmissions from 9 of the 11 UE sites evaluated in the test location. Such situations can limit spectral efficiency by reducing both MIMO and spatial division multiple access performance.
Millimetre Wave Propagation Reverse Measurements for 5G Urban Micro Scenario
2019-04-01
1845393 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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