Method and device for confirming shaped beam GOB vector of auxiliary carrier wave

Abstract

The invention discloses a method for confirming a shaped beam GOB vector of an auxiliary carrier wave. The method for confirming the shaped beam GOB vector of the auxiliary carrier wave is used in a CA system. The method for confirming the shaped beam GOB vector of the auxiliary carrier wave includes: judging whether a first intersection angle is equal to a second intersection angle, wherein the first intersection angle is an intersection angle between a user terminal and the antenna normal direction of a main carrier wave, and the second intersection angle is an intersection angle between the user terminal and the antenna normal direction of the auxiliary carrier wave; if the first intersection angle is not equal to the second intersection angle, judging whether an angle difference between the first intersection angle and the second intersection angle always is a fixed value; if the angle difference between the first intersection angle and the second intersection angle always is the fixed value, confirming the GOB vector according to the fixed value and an AOA value of the user terminal in the wave incoming direction of the user terminal; if the angle difference between the first intersection angle and the second intersection angle is not the fixed value always, confirming the GOB vector according to a direction of arrival DOA of the user terminal on the auxiliary carrier wave. The method for confirming the shaped beam GOB vector of the auxiliary carrier wave can achieve the purpose of confirming technical effects of the GOB vector of the auxiliary carrier wave when the CA system where the main carrier wave and the auxiliary carrier wave are located is not in a frequency segment.

Description

technical field [0001] The present invention relates to the technical field of digital communication, in particular to a method and equipment for determining a beamforming GOB vector of a secondary carrier. Background technique [0002] The peak rate proposed by Long Term Evolution LTE-A is 1Gbps downlink, 500Mbps uplink, 15bps / Hz uplink peak spectral efficiency, and 30bps / Hz downlink. In order to meet such high peak rate and peak spectrum utilization requirements, LTE-A needs to support a maximum bandwidth of 100MHz. However, it is difficult to find such a large bandwidth in the existing available spectrum resources, and the large bandwidth also brings great difficulties to the hardware design of base stations and terminals. In addition, for spectrum resources scattered in multiple frequency bands, a technology is urgently needed to make full use of them. Based on the above considerations, LTE-A introduces the key technology of carrier aggregation CA. CA can serve the te...

AI Technical Summary

Problems solved by technology

[0011] Although the above solution can use the beamforming MIMO method, the application scenarios of this solution are very limited. It is only applicable when the CA system where the main carrier and the auxiliary This solution cannot be used when the CA system is not a CA system in the frequency band

[0012] Therefore, the existing technology is faced with the technical problem that the beamforming GOB vector of the auxiliary carrier cannot be determined when the CA system where the main carrier and the auxiliary carrier are located is not in the same frequency band as the CA system

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