Status information acquiring method and system for base station participating in relaying in relay network

Abstract

A method and system for acquiring status information by a Donor eNB (DeNB) in a relay network are provided in the present invention, including that a Relay Node (RN) feeds back, to a DeNB, its own status information or status information of a User Equipment (UE) in the coverage range of the RN itself. The DeNB, by the status information fed back by the RN at a Un interface, acquires the status information on the RN side or the UE side at a Uu interface, so that the UE or the E-Radio Access Bearer (E-RAB) of the UE is flexibly dispatched, and it is assured that every UE or every E-RAB of a UE is able to reasonably receive the data distributed by the DeNB; or mastery of the status of the RN or the status of the E-RAB of the RN is performed, and the situation of overload occurring in the RN is avoided by flow control.

Description

technical field [0001] The invention relates to a relay technology, in particular to a method and a system for obtaining state information by a base station participating in the relay in a relay network. Background technique [0002] figure 1 It is a schematic diagram of the composition structure of the existing cellular wireless communication system, such as figure 1 As shown, the cellular wireless communication system is mainly composed of a terminal, a radio access network (RAN, Radio Access Network) and a core network. RAN is composed of base stations, or base stations and base station controllers ( figure 1 The network composed of not shown in ) is responsible for access layer affairs, such as management of radio resources. There may be physical or logical connections between base stations according to the actual situation, such as figure 1 Base station 1 and base station 2, or base station 1 and base station 3 in . Each base station can be connected to one or more...

AI Technical Summary

Problems solved by technology

If there is a service with a high priority and the wireless condition of the corresponding UE is very poor at this time, the DeNB will still give priority to the service with a high priority. In this way, the DeNB cannot perform traffic control reasonably, which will inevitably lead to the failure of the Un interface. low efficiency, or affect the transmission of other UEs or other services multiplexed on the same RN E-RAB, or even cause congestion or packet loss

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