RELAY SYSTEM IN RING TOPOLOGY

摘要

A master unit configured to manage a plurality of remote units connected in a ring topology, the master unit comprising: a network management section configured to transmit at least one of a path-state monitoring control signal and a delay measurement control signal to the plurality of remote units in a first direction and a second direction which is a reverse direction of the first direction, and receives an acknowledgement signal in response to the at least one of a path-state monitoring control signal and a delay measurement control signal; and switching control means for transmitting a forward signal received from a base station in the first direction, and transmitting a switching control signal in the second direction when a defect is detected in any remote unit among the plurality of remote units by the network management section.

主权项

1. A remote unit that is interposed between first and second remote units in a ring topology, comprising:
a first deframer configured to deframe first signals received from the first remote unit; a first framer configured to frame a first transmitting target signal, which is required to be transmitted to the second remote unit, among the first receiving signals; a second deframer configured to deframe second signals received from the second remote unit; a second framer configured to frame a second transmitting target signal, which is required to be transmitted to the first remote unit, among the second receiving signals; a forward DSP section configured to perform digital signal processing on service signals, which are required to be transmitted to a user terminal, among the first receiving signals and the second receiving signals; a reverse DSP section configured to perform digital signal processing on a terminal signal transmitted from the user terminal; and a control section configured to switch between a first switching state in which the first receiving signals and the second receiving signals are respectively used as a forward signal and a reverse signal, and a second switching state in which the first receiving signals and the second receiving signals are respectively used as a reverse signal and a forward signal, in response to a switching control signal.