Communication method and equipment based on advanced antenna system

Abstract

Embodiments of the present invention relate to an advanced antenna system-based communication method. The advanced antenna system-bases communication method comprises: receiving a measurement report transmitted by a user equipment (UE); transmitting a handover request command to a destination evolved node base (eNB) on the basis of the measurement report, where the handover request command carries a horizontal angle of arrival, a vertical angle of arrival, and an antenna height of a source eNB; receiving a handover response command returned by the destination eNB, where the handover response command carries a horizontal angle of arrival and a vertical angle of arrival of the destination eNB acquired by calculation on the basis of the horizontal angle of arrival, the vertical angle of arrival, and the antenna height of the source eNB and of the distance between the source eNB and the destination eNB; and transmitting a handover command to the UE on the basis of the handover response command to allow the UE to transmit to the destination eNB a random access request command for accessing the destination eNB. The embodiments of the present invention improve for the UE the quality of random access to the eNB and reduce the rate of access failure.

Description

technical field [0001] The present invention relates to the field of wireless communication, more specifically, to a communication method and device based on an advanced antenna system. Background technique [0002] In future wireless communication systems, higher speed, larger capacity, and wider coverage are the main goals of system design. With limited spectrum resources, how to improve spectrum efficiency is an urgent problem to be solved. The Advanced Antenna System (AAS for short) can adaptively adjust the antenna mode by using multiple antenna elements, including horizontal and vertical elements, and aim the beamforming at a specific For users, the spatial dimension is added to the original time, frequency, and code resources, so that the wireless communication system can meet the large throughput requirements of modern data services to a greater extent, so as to achieve the purpose of expanding network coverage and improving system capacity. , AAS has become one of...

AI Technical Summary

Problems solved by technology

Due to the introduction of AAS, no matter how the beams are adjusted, there must be an area where the beams overlap between two cells. Even through beam adjustments in the space dimension, interference cannot be avoided

Therefore, if there is no reasonable interference avoidance scheme, two adjacent eNBs use the same PRB resources in these beam overlapping areas, which will definitely generate stronger interference in the AAS system and deteriorate the system performance

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