KR100272975B1 - Device and method for 4 channel quadruple channel setting in personal communication system exchange - Google Patents

Abstract

In the present invention, a U-link structure of a communication channel between upper processors in a personal mobile communication exchange system combines a channel of a processor in operation and a channel of a non-operating processor in a U-link structure to accommodate a channel duplex configuration. The present invention relates to a four-channel quadruple channel setting apparatus and method for a personal mobile communication switch for extending a channel selection range and increasing channel reliability. The present invention implements a transmitter and a receiver with four-channel quadruple, Searching for the status of the self / cross channel of the processor block in operation; if the self / cross channel is normal as a result of the search, controlling the self channel to occupy by default; Controlling to occupy, abnormality in both self / cross channel as a result of the confirmation If so, the step of controlling to occupy one of the non-operational counterpart channels is established, thereby establishing the channel.

Description

Device and method for 4 channel quadruple channel setting in personal communication system exchange of personal mobile switching center

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a personal mobile communication switch, and more particularly, a processor in a non-operating channel with a channel of a processor in operation while accepting a duplex configuration and a channel duplex configuration of a processor block in a U-link structure of a communication channel between upper processors in the personal mobile communications exchange. The present invention relates to a four-channel quadrature channel setting apparatus and a method of a personal mobile communication switch for expanding a channel selection range and increasing channel reliability by combining four channels.

In general, a personal communication system (PCS) system is a system that allows an individual to carry a small terminal and communicate while moving.

1 is a block diagram of a dual channel dual channel setting apparatus of the conventional personal mobile communication switch.

As shown therein, a node (1) (2) which performs an information processing function and a communication function to perform an exchange line matching function; A processor directly or cross-connected with the node 1 or 2 by a self / cross channel 5 or 6 to perform communication control installed in the node 1 or 2; (3) (4).

The operation of the two-channel dual channel setting apparatus of the conventional personal mobile communication switch configured as described above will be described in detail with reference to the accompanying drawings.

First, the communication channel structure between upper processors in a conventional exchange is a redundant structure (two channel structure). That is, the upper processor block (MPH: Main Processor Block) is a redundant structure of active and standby of the A side block / B side block, and each of these redundancy structures is a duplicated structure in which a self / cross concept is introduced as a channel structure for communication. Channel structure.

In this structure, the active side of the duplicated processor blocks in actual system operation is called an active block, and the block waiting to perform its function again when a problem occurs in the non-operating side is called a standby block.

Thus, the active / standby block is physically connected to two channels, called self / cross channels (5) and (6), and the two channels that are physically connected to these channels are active (active). One channel is occupied and used, and when not in operation (standby state), no channel is occupied.

In addition, the channels of the active block and the standby block are operated independently by the two-channel redundancy method. Thus, the channel selectivity block occupies the normal channel among the self channel 5 and the cross channel 6, and in the case where both channels are normal, the self channel 5 is occupied by default. The cross channel 6 was activated to become active and standby.

However, the conventional channel setting apparatus as described above occupies the normal channel of the self channel and the cross channel at the time of channel selection, and occupies the self channel when both channels are normal, so that the channels of the active block and the standby block occupy each other when the channel is occupied. The other channel cannot be occupied, and at the same time, two blocks have a problem in that the standby must occupy the self channel when the active occupies the self channel.

In addition, the non-operating channels are always in the idle state even though their channels are operating normally, and there is a problem in that the efficiency of channel utilization is lowered because only one channel is used in operation.

Therefore, the present invention has been proposed to solve the above conventional problems,

An object of the present invention is to combine the channel of the processor in operation and the channel of the non-operating processor in the U-link structure, which is the communication channel between the upper processors in the personal mobile communication exchange, while accepting the channel redundancy configuration and the channel redundancy configuration. The present invention provides a 4-channel quadrature channel setting apparatus and method for a personal mobile communication switch for extending channel selection and increasing channel reliability.

The four-channel quadruple channel setting apparatus of the personal mobile communication switch according to the present invention for achieving the above object,

First and second demultiplexers for receiving a transmission signal and demultiplexing the received transmission signal according to a selection signal input to a selection signal input terminal and outputting the first and fourth channel terminals; Third and fourth outputting output signals of an output terminal of a second demultiplexer and demultiplexing the output signals of the first and second demultiplexers according to a selection signal input to a selection signal input terminal; A transmitter comprising a demultiplexer;

First and second multiplexers for receiving a received signal, selecting an arbitrary number of the received received signals according to a selection signal input to a selection signal input terminal, and multiplexing the selected received signals and outputting the received channel cross signals; And a signal input to the first to fourth channel terminals by receiving the first to third loopback signals to the first to fourth channel terminals, and according to a selection signal input to the selection signal input terminal. And a receiving unit including third and fourth multiplexing units for selectively multiplexing signals output from the first and second multiplexing units and outputting the final received signals.

Four-channel quadruple channel setting method of the personal mobile communication switch according to the present invention for achieving the above object,

Retrieving a state of the self / cross channel of the processor block in operation;

Controlling the self channel to occupy by default when the self / cross channel is normal as a result of the search;

Controlling the occupancy of the channel when there is one normal channel as a result of the checking;

If both of the self / cross channels are abnormal as a result of the checking, a control is performed to occupy one of the counterpart channels that are not in operation, thereby setting the channel.

1 is a block diagram of a two-channel dual channel setting apparatus of a conventional personal mobile communication switch,

2 is a block diagram of a four-channel quadrature channel setting apparatus of a personal mobile communication switch according to the present invention;

3 is a block diagram of a four-channel quadrature channel setting apparatus of a personal mobile communication switch according to an embodiment of the present invention;

4 is a block diagram of a four-channel quadrature channel setting apparatus of a personal mobile communication switch according to another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

21 ... Transmitter 22 to 25 ... First to fourth demultiplexer

26 ... receiver 27 ~ 30 ... first to fourth multiplexer

31 to 34 ... Logic 1 to Logic 4

Hereinafter, described in detail with reference to the accompanying drawings, preferred embodiments of the present invention according to the technical spirit as described above.

2 is a block diagram showing the concept of a four-channel quadrature channel setting apparatus of a personal mobile communication exchange to which the present invention is applied.

As shown therein, the nodes 11 and 12 perform information processing functions and communication functions, perform a joining function of switching lines, and share a channel by a shared channel 17; Directly or cross-connected with the nodes 11 and 12 by self / cross channels 15 and 16 to perform communication control installed in the nodes 11 and 12, and to the shared channel 17 It consists of a processor 13, 14 for performing channel sharing between the processor (13), (14).

3 is a block diagram of a four-channel quadrature channel setting apparatus of a personal mobile communication switch according to an embodiment of the present invention.

As shown here, the transmitter 21 is configured to be quadruple, and receives a transmission signal and outputs a loopback signal and a plurality of demultiplexed transmission signals according to a selection signal input to the selection signal input terminals S1 and S2. And a quadrature receiver configured to receive the loopback signal and the received signal of the transmitter 21 and output a multiplexed received signal according to a selection signal input to the selection signal input terminals S1 and S2. It consists of.

The transmitter 21 receives the transmission signal, demultiplexes the received transmission signal according to the selection signal input to the selection signal input terminals S1 and S2, and transmits the first to fourth channel terminals CH1 to 4. Receiving output signals of the first and second demultiplexers 22 (DMUX1) 23 (DMUX2) and the output terminals of the first and second demultiplexers 22, 23 outputted to CH4), Third and fourth demultiplexing which demultiplexes and outputs the output signals of the first and second demultiplexers 22 and 23 according to a selection signal input to a selection signal input terminal S10 (S2). It consists of part 24: DMUX3 and 25: DMUX4.

In addition, the receiver 26 receives the received signal through the channel terminals CH1 to CH4, and selects any number of the received signals according to the selection signal input to the selection signal input terminals S1 and S2. And a first and second multiplexer 27 (MUX1) 28 (MUX2) for multiplexing and outputting the selected received signal, and receiving channel cross signals and first to third loopback signals from the first to fourth channels. According to a selection signal input to the terminals CH1 to CH4 and input to the selection signal input terminals S1 and S2, one of the signals input to the first to fourth channel terminals CH1 to CH4 may be selected. To the third and fourth multiplexers 29 (MUX3) 30 (MUX4) for selectively multiplexing the signals and signals output from the first and second multiplexers 27 and 28 and outputting them as final received signals. It is composed.

4 is a block diagram of a four-channel quadrature channel setting apparatus of a personal mobile communication switch according to another embodiment of the present invention.

As shown therein, logic 1 (31) for receiving a transmission signal, receiving a selection signal from the selection signal input terminals (S1-S4), and outputting a loopback signal and a plurality of demultiplexed signals; A transmission signal is received, a selection signal input to the logic 1 31 is input to the selection signal input terminals S1 to S4, the loopback signal is output, and the inverse of the output signal of the logic 1 31 is combined. Logic 2 (32) for outputting a multiplexed signal; A logic 3 (33) for receiving the loopback signal of the logic 1 (31), receiving a received signal, and outputting a multiplexed signal according to the selection signal of the selection signal input terminals (S1-S4); The loopback signal of the logic 2 32 is received, the received signal input to the logic 3 33 is received, and the selection signal input to the logic 3 33 is selected to the selection signal input terminals S1-S4. Logic 4 (34) for receiving the input and output the multiplexed signal.

The four-channel quadruple channel setting method of the personal mobile communication switch according to the present invention,

Search the status of the self / cross channel 15, 16 of the processor block in operation, and if the self / cross channel 15, 16 is normal as a result of the search, control to occupy the self channel by default, and confirm As a result, if there is one normal channel, the channel is controlled to occupy the channel. If the self / cross channels 15 and 16 are abnormal, the channel is set to occupy one of the non-operating channels. do.

Here, the channel setting method according to the present invention further includes a process of performing a loopback by connecting a signal path to a receiving side when there are no channels to occupy because both the operating channel and the non-operating channel are abnormal.

The operation of the four-channel quadrature channel setting apparatus and method of the personal mobile communication switch according to the present invention configured as described above will be described in detail with reference to the accompanying drawings.

First, in order to improve channel utilization efficiency and system reliability while maintaining a conventional channel setting state, the present invention allows a channel of a non-operating processor and an active processor (active state) to share a channel and use the PBA (Print Board). The channel setting circuit is implemented in the assembly (printed circuit board) to quadruple the channel, and in case of abnormal channel status or when there is no channel to operate, the loopback returns the signal path to the receiving end. ) Channel is implemented to solve the problem of missing channel state. In addition, by controlling the channel status signal to use this loopback channel, testing in a local block can be performed without inserting a physical feedback cable, which can be used as a debugging channel when a problem occurs in the system.

Thus, the self-channel 15, the cross-channel 16, and the shared channel 17 are configured to quadruple the channel so that even if all paths are blocked, the signal path exists by the loopback signal. Accordingly, by determining the occupation of the channel state, control logic by a separate control signal is unnecessary.

This operation will be described in more detail with reference to FIG. 3, which is an embodiment of the present invention.

First, the circuit is implemented by demultiplexing logic (22-25) when transmitting through the channel, and by multiplexing logic (27-30) when receiving. The circuit is multiplexed and demultiplexed to open the channel path according to the channel state. The selection signal for channel connection of the multiplexed structure is connected to the channel state signal. Then, one of four channel setting paths is selected according to the channel state. In addition, the channel operation sequence is to occupy the normal channel first among the self / cross channels 15 and 16 of the processor block in operation. When the self / cross channels 15 and 16 are all normal, the self channel 15 is set by default. Occupy one of the other channels in the non-operational state if the self / cross channels 15 and 16 are all abnormal. In this case, the signal paths do not overlap in case the non-operational channel becomes in operation.If all four channels are abnormal or there is no normal channel to occupy, connect the signal path to the receiver. Allow loopback to be performed. This loopback function also enables testing in blocks that are local in the system by controlling channel status signals in the system, while simultaneously allowing separate loopback paths on the A and B sides.

Accordingly, the transmitter 21 is composed of four demultiplexers 22 to 25, each of which is connected to the channel according to the channel selection signals "S1" and "S2".

Here, Tx_Signal of the signals shown in FIG. 3 is transmission data input as a signal to be transmitted, A_Self_Channel_State is a state of a self channel connected to the A side processor, A_Cross_Channel_State is a state of a cross channel connected to the A side processor, and B_Self_Channel_State is a B side State of the self channel connected to the processor, B_Cross_Channel_State is the state of the cross channel connected to the B side processor, Tx_Channel Self_A is the transmit self channel connected to the A side processor, Tx_Channel Cross_A is the transmit cross channel connected to the A side processor, and LoopBack_A is Data transmitted to the A side is a channel fed back to the receiving end, LoopBack_B is a channel for the data sent to the B side is fed back to the receiving end.

Tables 1 to 4 are tables showing channel selection methods of the transmitter 21 according to channel conditions.

Channel selection method of the first demultiplexer (DMUX1) 22 A side cross channel state (S1) A side self channel status (S2) Occupied channel (channel connection) 0 0 A side self-channel 0 One A side cross channel One 0 A side self-channel One One Fourth demultiplexed input channel

Channel selection method of the second demultiplexer (DMUX2) 23 B side cross channel state (S1) B side channel (S2) Occupied channel (channel connection) 0 0 B side self-channel 0 One B side crosschannel One 0 B side self-channel One One Third demultiplexed input channel

Channel selection method of the third demultiplexer (DMUX3) 24 A side cross channel state (S1) A side self channel status (S2) Occupied channel (channel connection) 0 0 A side cross channel 0 One Loopback B Channel One 0 Loopback B Channel One One Loopback B Channel

Channel selection method of the fourth demultiplexer (DMUX4) 25 B side cross channel state (S1) B side channel (S2) Occupied channel (channel connection) 0 0 B side crosschannel 0 One Loopback A Channel One 0 Loopback A Channel One One Loopback A Channel

Thus, if the channel is both self / cross normal (S1 = '0', S2 = '0'), the channel occupies the self channel by default, and if the channel state is abnormal ('1'), it is normal ('0'). If both channels exist at the same time, it occupies the normal channel automatically, and if both self / cross are abnormal, it opens the path to utilize the channel of the non-operating processor. Through such a path, the self / cross channel in non-operation can be selected. In this case, the demultiplexing structure is also used, and the state of the channel operates like the channel method of the processor in which the path is operated. If the channel is determined to be abnormal and uses the channel of the state block, the channel path is made available to the cross channel by default (the channel occupied by the active processor has the priority of the self channel), and in this case, only one channel is used. If it is normal, since there is no data path, loopback process is performed by connecting the path to the receiving end. Similarly, if all four channels are abnormal, the signal path is connected to the receiver to loop back.

In addition, the receiver 26 is composed of four multiplexers 26-30, each of which is connected to the channel according to the channel selection signals " S1 " and " S2 ".

Here, Rx_Signal of the signals shown in FIG. 3 is received data input as a signal to be received, A_Self_Channel_State is a state of a self channel connected to the A side processor, A_Cross_Channel_State is a state of a cross channel connected to the A side processor, and B_Self_Channel_State is a B side State of the self channel connected to the processor, B_Cross_Channel_State is the state of the cross channel connected to the B side processor, Rx_Channel Self_A is the receive self channel connected to the A side processor, Rx_Channel Cross_A is the receive cross channel connected to the A side processor, and LoopBack_A Data transmitted to the A side is a channel fed back to the receiving end, LoopBack_B is a channel for the data sent to the B side is fed back to the receiving end.

Tables 5 to 8 are tables showing channel selection methods of the receiver 26 according to channel conditions.

Channel selection method of the first multiplexer (MUX1) 27 A side cross channel state (S1) A side self channel status (S2) Occupied channel (channel connection) 0 0 A side self-channel 0 One A side cross channel One 0 A side self-channel One One Loopback A Channel

Channel selection method of the second multiplexer (MUX2) 28 B side cross channel state (S1) B side channel (S2) Occupied channel (channel connection) 0 0 B side self-channel 0 One B side crosschannel One 0 B side self-channel One One Loopback B Channel

Channel selection method of the third multiplexer (MUX3) 29 A side cross channel state (S1) A side self channel status (S2) Occupied channel (channel connection) 0 0 A side cross channel 0 One Loopback B Channel One 0 Loopback B Channel One One Loopback B Channel

Channel selection method of the fourth multiplexer (MUX4) 30 B side cross channel state (S1) B side channel (S2) Occupied channel (channel connection) 0 0 B side crosschannel 0 One Loopback A Channel One 0 Loopback A Channel One One Loopback A Channel

Therefore, even if the channel occupied by the channel of the running processor is self, the path of the cross channel is also occupied. This channel consists of a structure that opens automatically to open a path for processing a signal transmission to a non-operating processor block. In this configuration, all four channels become available channels, and actual quadrature is achieved. The receiver 26 opens a path for loopback.

4 is a detailed block diagram showing another embodiment of the processor 13, 14 configuration.

Its operation is also operated by operating the channel similarly to the detailed description of FIG.

As such, the present invention combines the channel of the processor in operation and the channel of the non-operating processor while accommodating the duplex configuration and the channel duplication configuration of the processor block to implement the 4-channel quadruple.

According to the present invention described above, the "four-channel quadruple channel setting apparatus and method thereof of the personal mobile communication switch," the channel of the processor in operation and the channel of the processor in operation while accepting the duplex configuration and the channel duplication configuration of the processor block By combining with the four-channel quadrature, channel selection range can be extended and channel reliability can be increased.

In addition, the present invention provides a separate channel by connecting the path of the channel to the receiving end when the state of the channel selection signal is all abnormal and there is no normal channel that can be occupied. There is also the effect of running tests in local blocks without interlocking with the blocks.

Claims (2)

A first signal for receiving a transmission signal and demultiplexing the received transmission signal according to a selection signal input to the selection signal input terminals S1 and S2 and outputting the first and fourth channel terminals CH1 to CH4; The second demultiplexer 22 (230) and the output signals of the output terminals of the first and second demultiplexers (22) (23) are input and are input to the selection signal input terminals (S1) (S2). A transmitter comprising a third and fourth demultiplexers 24 and 25 for demultiplexing and outputting the input signals of the first and second demultiplexers 22 and 23 according to a selection signal; Receives a received signal through the first to fourth channel terminals CH1 to CH4, selects an arbitrary number of the received received signals according to the selection signal input to the selection signal input terminal S10 (S2), and receives the selected signal. First and second multiplexers 27 and 28 which multiplex and output signals, and receive channel cross signals and first to third loopback signals through first to fourth channel terminals CH1 to CH4; According to a selection signal input to the selection signal input terminals S1 and S2, one of the signals input to the first to fourth channel terminals CH1 to CH4 is selected, and the selected signal and the first and second multiplexing units. 4 of the personal mobile communication switch, characterized in that the receiver consists of a third and fourth multiplexer 29, 30 to selectively multiplex the signal output from the (27) (28) and output as a final received signal. Channel Quadruple Channel Setting Device. Retrieving a state of the self / cross channel of the processor block in operation; Controlling the self channel to occupy by default when the self / cross channel is normal as a result of the search; Controlling the occupancy of the channel when there is one normal channel as a result of the checking; And if the self / cross channel is abnormal as a result of the check, controlling the channel to occupy one of the non-operating counterpart channels, thereby setting up the channel.