A switching system, method, device and related equipment

Abstract

The invention discloses a switching system, a method, a device and related equipment, and aims to reduce spending of relay processing resources, to reduce switching delay, and to improve switching efficiency. The switching system comprises a relay and at least two host base stations of the relay, wherein the host base stations are used for selecting a target base station to be switched for an user equipment when the user equipment needs to be switched and sending a first switching indication message to the relay managing the user terminal; the relay is used for determining whether the target base station is the own host base station or not according to the base station identification information carried in the received first switching indication message, sending a second switching indication message to the user terminal, indicating the user terminal to keep connecting with a data channel of the relay according to the keep-connecting identification information carried by the second switching indication message, and switching a control channel to the target base station according to the base station identification information.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a switching system, method, device and related equipment. Background technique [0002] A relay (RS, RelayStation) is an intermediate node added between a base station and a user terminal (UE, UserEquipment). The relay processes the transmission signal sent by the base station, and then forwards it to the UE. According to the implementation strategy, relays can be divided into Type I (TypeI) relays and Type II (TypeII) relays. [0003] In the existing Type II relay system, one relay corresponds to one base station, or multiple relays correspond to one base station. The base station corresponding to the relay can be called the host base station of the relay. In the prior art, a relay can only correspond to A host base station. Such as figure 1 As shown, it is a schematic diagram of the relationship between TypeII relays and base stations in the prior art, assuming th...

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Problems solved by technology

[0017] From the above handover process, it can be seen that during the handover process, the UE must first interrupt the data channel connection with the relay in the source base station, and then connect to the relay in the target base station after switching the control channel to the target base station. The relay of the source base station buffers the data sent to the UE by the source base station. Therefore, after switching to the target base station, the relay of the target base station needs to re-download this part of the data and forward it to the UE. In this way, the overhead of relay processing resources is increased. In addition, since the UE also needs to perform relay handover while performing handover, the handover delay is relatively large and the handover efficiency is low.

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