Method for detecting IMA E1 link hybrid lines, device and system

Abstract

The invention discloses a method for detecting IMA E1 link hybrid lines. The method comprises that: a transmitting end sends a test signal for detecting hybrid line conditions to a communication opposite end side through a first link, wherein the test signal at least comprises a first mark for uniquely marking the first link; then, the transmitting end receives a response signal returned by the communication opposite end side through a second link, wherein the response signal at least comprises a second mark for uniquely marking the second link and a third mark received by the communication opposite end side for uniquely marking a certain link; and finally, the transmitting end compares the first mark with the third mark, and determines that the first link and the second link are hybrid according to the first mark and the second mark when the first mark and the third mark are not consistent. Therefore, the method effectively avoids the occurrence of erroneous judgment and greatly improves the accuracy of hybrid line detection results. The invention also discloses a communication device and a communication system at the same time.

Description

technical field [0001] The present application relates to the communication field, and in particular to a method, device and system for detecting IMAE1 link mixing. Background technique [0002] At present, in the third-generation mobile communication system, the IUb interface between the radio network controller (Radio Network Controller, RNC) and the base station (NodeB) generally adopts the inverse multiplexing of the asynchronous transfer mode (Inverse Multiplexing for Asynchronous Transfer Mode, IMA ) technology to realize data transmission. The so-called IMA technology refers to bundling multiple low-speed physical links (such as 30 pulse code modulation links based on European standards, referred to as E1 links) into a logical high-speed link (hereinafter referred to as IMA link) through IMA technology. E1 link). For example, see figure 1 As shown, the three E1 links of physical links #0, #1 and #2 are bundled into one IMA E1 link using IMA technology to transmit t...

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Problems solved by technology

However, using the existing mixed-line detection method will cause misjudgment, such as image 3 As shown, the test signal sent by the RNC carries the link number "0" of the local IMA E1 link, and the response signal returned by the NodeB carries the link number "1" of the IMA E1 link on the NodeB side. It is judged that the link numbers of sending and receiving are inconsistent, but it is determined that there is a mixed line. Obviously, this is a misjudgment

[0015] 2) Unable to accurately detect one-to-many IMAE1 link mixed lines

[0016] For example, see Figure 4 As shown, Tx0 on the RNC side is connected to Rx0 on the NodeB 0 side, and Tx0 on the NodeB1 side is connected to Rx0 on the RNC side. The IMA E1 link whose link number is "0" and the IMAE1 link whose link nu

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