Method and apparatus for sending signal in soft handoff region of unbalanced region of heterogeneous network

Abstract

Disclosed are a method and apparatus for sending a signal of a soft handover region in an unbalanced area of a heterogeneous network, which relate to the technical field of communications, and can prevent a user equipment in an unbalanced area from bringing unstable uplink interferences to a micro base station in a heterogeneous network. In the embodiments of the present invention, a micro base station in a heterogeneous network receives a signal sent by a user equipment in an unbalanced area; the micro base station acquires a first power control command according to the received power of the signal; and the micro base station sends the first power control command to the user equipment so that the user equipment adjusts the sending power of the signal according to the first power control command. The solution provided in the embodiments of the present invention is applicable to the sending of a signal of a soft handover region in an unbalanced area of a heterogeneous network.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a signal sending method and device for a soft handover area in an unbalanced area of ​​a heterogeneous network. Background technique [0002] In order to enhance the processing capability of the network, the prior art provides a heterogeneous network (Hetnet, Heterogeneous network) technology. A heterogeneous network usually includes macro base stations and micro base stations. If the transmitted signal of the user equipment (User Equipment, UE) in the heterogeneous network has the same signal strength at the macro base station and the micro base station, the position of the user equipment in the heterogeneous network is called an uplink balance point. If the signals transmitted by the macro base station and the micro base station have the same signal strength at the user equipment, the position of the user equipment in the heterogeneous network is called a downlink balan...

AI Technical Summary

Problems solved by technology

[0003] When the user equipment is in the soft handover area of ​​the unbalanced area, the inventors found that the following problems exist in the prior art: when the macro base station cannot receive the uplink service request information, the uplink service is unstable; when the macro base station cannot receive the downlink data When feeding back information, the downlink service is unstable

At the same time, in the handover area where the user equipment is located, the first power control command sent by the micro base station is not received stably at the user equipment, which will cause the micro base station to be unable to effectively suppress the transmit power of the user equipment, causing uplink interference to the micro base station

Images