JP2748741B2 - Time division multi-way multiplex communication device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a time division multiplex communication apparatus.

[0002]

2. Description of the Related Art Conventionally, this kind of multi-directional multiplex communication apparatus has
There was no means for automatically grasping the overall station configuration and the distances from the master station to each relay station and slave station.

[0003]

The above-described conventional time-division multi-way multiplex communication apparatus has no means for automatically grasping the entire station configuration and the distance between the stations. There is a drawback that the distance between the stations cannot be known unless there is a map which shows and manages and records the positions of the stations.

[0004]

A time division multi-way multiplex communication apparatus according to the present invention comprises one master station, at least one relay station, and a plurality of slave stations. The relay station and the slave station generate a frame pulse by detecting the frame synchronization pattern transmitted from the upper station by providing a downstream frame transmitting means for continuously transmitting a signal multiplexed with a frame synchronization pattern toward the lower station. Frame synchronization means, fixed delay means for delaying the upstream signal transmitted by each station by a fixed delay by an amount corresponding to the number of relay stages from the master station, and in the case of the relay station, the delay signal Variable delay means for multiplexing an upstream signal from a lower station, in the case of the slave station, delaying the delay signal by an adjustment delay amount according to a distance from an upper station and adjusting the delay signal to a burst signal and transmitting the burst signal, A time-division multi-way multiplex communication device controlled so that the upstream burst signals received by a station and a relay station are arranged in a line on a time axis, wherein each of the master station, the relay station and the slave station has a unique station number. Is set, and the master station and the relay station respectively transmit their own station numbers to the relay station and the slave station one stage lower, and the relay station and the slave station each transmit the master station and the relay station one stage higher. Receiving the station number of the upper station transmitted from the base station, and transmitting the station number of the own station, the station number of the upper station on the next stage and the adjustment delay amount in the own station to the master station, Calculates the overall station configuration and the distance between the stations based on the station numbers of the relay station and the slave station received from the relay station and the slave station, the station number of the upper-level station on the first stage, and the adjustment delay amount. It is characterized by comprising a calculating means.

[0005]

Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing one embodiment of the time division multi-way multiplex communication apparatus of the present invention.

In this embodiment, relay stations S1 and S1 are controlled under master station S0.
S2 is shown, and a time division multidirectional multiplex communication is performed in a system configuration in which a slave station S3 is located under the relay station S1 and slave stations S4 and S5 are located under the relay station S2.

As shown in FIG. 1, a downstream frame 100 has a frame synchronization pattern (hereinafter, F) and a station number relay channel (hereinafter, RCH), and is continuously transmitted to a lower station. The upstream frame 200 is transmitted as a burst signal to an upper station.

The master station S0, the relay stations S1, S2, the slave stations S3,
Station numbers n0, n1, n2, n are assigned to S4 and S5, respectively.
3, n4, and n5 are set, and the master station S0 sets the downlink frame 1
A down multiplexing circuit (hereinafter referred to as MD) 01 for multiplexing F into 00 and sending it to the lower station, and relay stations S1, S2, slave stations S3, S
4 and S5, a frame synchronization circuit (hereinafter referred to as FS) 1 for detecting F in the downstream frame 100 and generating a frame pulse.
2, 22, 32, 42, 52, and the MD0 of the master station S0 and the relay stations S1, S2 based on the frame pulse.
1, 17, and 27 multiplex their own station numbers n0, n1, and n2 on the RCH of the downstream frame 100 and transmit them to the lower station one stage below.

[0009] Relay stations S1, S2, slave stations S3, S4, S5
Is the higher station number n0,
Downlink separation circuits (hereinafter D) for separating n1 and n2 from RCH
D) 13, 23, 33, 43, 53 and own station number n
1, n2, n3, n4, n5 and DD13, 23, 33,
Station numbers n0, n1, and n2 of upper stations separated by 43 and 53
And variable delay circuits (hereinafter DV) 16, 26, 36, 4
6, 56, the adjustment delay amounts d1, d2, d3
an uplink multiplexing circuit (hereinafter referred to as MU) 14, which multiplexes d4 and d5,
24, 34, 44, and 54 and a fixed delay circuit (hereinafter referred to as D
L) 15, 25, 35, 45, 55 are provided. DV1
6, 26, 36, 46 and 56 give an adjustment delay amount to the upstream signal according to the distance to the upper station, control the upstream station so that the upstream burst signals are arranged in a line on the time axis, and transmit the signal to the upper station. .

The master station S0 is composed of relay stations S1, S2 and slave stations S.
3, the station number transmitted from S4 and S5, the station number on the next stage, and the upstream separation circuit (hereinafter referred to as DU) 02 for separating the adjustment delay amount from the upstream signal sequence, and the obtained station number and the station on the next stage An arithmetic circuit (hereinafter, ALU) 03 is provided for calculating the station configuration and the distance from the master station S0 from the numbers and the adjustment delay amount.

Next, the operation of this embodiment will be described with reference to FIG. FIG. 2 is a transmission and reception sequence diagram of the station number and the adjustment delay amount transmitted and received between the stations in FIG.

First, the station number n0 of the master station S0 multiplexed on the RCH by the MD01 of the master station S0 and transmitted is set to the relay station S1,
It is separated by DD13, 23 of S2 (FIG. 2a). Similarly, the station number n1 of the relay station S1 multiplexed and transmitted to the RCH by the MD17 of the relay station S1 is separated by the DD33 of the slave station S3, and the station of the relay station S2 multiplexed to the RCH by the MD27 of the relay station S2. The number n2 is separated by the DD43 of the slave station S4 and the DD53 of the slave station S5 (FIGS. 2B and 2C).

Next, the station number n1 of the relay station S1 multiplexed by the MU 14 of the relay station S1 and the station number n0 and the adjustment delay amount d1 of the upper station separated by DD13 are DL1
5 and DV16, and transmitted as an uplink burst signal, which is separated by DU02 of the master station S0 (FIG. 2).
d). By the same operation, the relay station S2, the slave stations S3, S4,
The station's own station numbers n2, n3, n4, and n5 multiplexed by the MUs 24, 34, 44, and 54 of S5, and the DD of the station
Station numbers n0, n1, n2, n3 and DV26, 36, 4 of the upper station separated by 23, 33, 43, 53
Adjustment delay amounts d2, d3, d4, d5 adjusted in 6, 56
Are DL25 and DV26, DL35 and DV36, DL45
2 and DV46, DL55 and DL56, and are separated by the DU02 of the master station S0 (FIGS. 2e to 2e).
h). Finally, the data as shown in FIG.
0 is input to ALU03.

FIG. 3 is a conceptual diagram of data input to the arithmetic circuit of the master station in FIG. 1. In order from left to right of parentheses, the station number of the station itself, the station number of the upper-level station on the next level, and the The adjustment delay amount of the station, for example, (n1, n0, d1) indicates that the higher-order station one stage higher than the station number n1 is n0, and the adjustment delay amount of the station number n1 is d1.

ALU03 is shown in FIG. 3 (n1, n0, d
1), (n2, n0, d2), the relay stations S1 and S2 belong below the master station S0, the adjustment delay amount between the master station S0 and the relay station S1 is d1, and the master station S0 and the relay station It is calculated that the adjustment delay amount during S2 is d2, and (n3, n1,
From d3), it is calculated that the slave station S3 belongs below the relay station S1, and the adjustment delay amount between the relay station S1 and the slave station S3 is d3. Further, (n4, n2, d4), (n5) n2, d
From 5), the slave stations S4 and S5 belong under the relay station S2, and the adjustment delay amount between the relay station S2 and the slave station S4 is d4.
By calculating that the adjustment delay amount between the second station and the slave station S5 is d5, it is possible to grasp the overall station configuration and the adjustment delay amount between the respective stations.

Here, the amount of adjustment delay between the stations is d, and the difference between a station having a fixed delay given to each relay station and a slave station according to the number of relay stages from the master station and a lower station one step below is given. Is D,
Assuming that the distance per unit delay amount is A, since (D−d) is the delay due to the distance, the distance L between the stations is L = (D−
d) · A is required.

[0017] Therefore Knowing adjustment delay between total station configuration and each station, for example, a distance L ₅ of the master station S0 and the slave station S5, the station configuration master station S0- relay station S2- slave station S5
And the adjustment delay amount between the master station S0 and the relay station S2 is d ₂ ,
Since between the relay station S2 and the slave station S5 is is d _5, L ₅ = (D
−d ₂ ) · A + (D−d ₅ ) · A = (2D−d ₂ −)
d ₅ ) · A Similarly, the distances between all the stations can be obtained by ALU03.

As described above, according to the present invention, the entire station configuration and the distance between the stations can be automatically grasped by the master station S0.
For example, the present invention can be applied to a case where charging is changed depending on the distance between a master station, a relay station, and a slave station.

[0019]

As described above, according to the present invention, a unique station number is set for each station, and the station number of the own station is transmitted from the master station and the relay station to the next lower relay station and the slave station. The station and the slave station send the station number of the upper station, the station number of the own station, and the adjustment delay amount of the own station to the master station, which are received from the master station and the relay station one level higher, and the master station is the relay station and the slave station. Since the total station configuration and the distance between the stations are calculated based on the station numbers of the relay station and the slave station received from, the station number of the upper-level station one level higher, and the adjustment delay amount of each station.
The master station can automatically manage the entire station configuration and the distance between each station.For example, when additional stations are added, the changed station configuration can be grasped without human intervention, and there is no map of the distance between each station. Can be automatically calculated.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a time division multi-way multiplex communication device of the present invention.

FIG. 2 is a transmission and reception sequence diagram of a station number and a delay adjustment amount transmitted and received between the stations in FIG. 1;

FIG. 3 is a conceptual diagram of data input to an arithmetic circuit of a master station in FIG.

[Explanation of symbols]

F Frame synchronization pattern RCH station number relay channel S0 master station S1, S2 relay station S3, -S5 slave station n0, -n5 station number 01, 17, 27 downlink multiplexing circuit (MD) 02 uplink demultiplexing circuit (DU) 03 arithmetic circuit (ALU) 12, 22, 32, 42, 52 Frame synchronization circuit (FS) 13, 23, 33, 43, 53 Downlink separation circuit (D
D) 14, 24, 34, 44, 54 Uplink multiplexing circuit (M
U) 15, 25, 35, 45, 55 Fixed delay circuit (D
L) 16, 26, 36, 46, 56 Variable delay circuit (D
V) 100 downstream frames 200 upstream frames

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04J 3/00-3/26 H04L 5/22-5/26 H04L 12/44 H04L 12/24-12 / 26

Claims (1)

(57) [Claims] 1. A master station, at least one relay station, and a plurality of slave stations, wherein the master station and the relay station continuously transmit a signal multiplexed with a frame synchronization pattern toward a lower station. The relay station and the slave station detect the frame synchronization pattern transmitted from the upper station to generate a frame pulse, and transmit the upstream signal transmitted from each station. Fixed delay means for making a delay signal fixedly delayed by an amount corresponding to the number of relay stages from the master station; and in the case of the relay station, a signal obtained by multiplexing the delay signal with an upstream signal from a lower station, Variable delay means for delay-adjusting the delay signal by an adjustment delay amount in accordance with the distance to a higher-level station and transmitting it as a burst signal, and transmitting the uplink burst signal received by the master station and the relay station on a time axis. A time-division multi-directional multiplex communication device controlled so as to be arranged in a line, wherein a unique station number is set to each of the master station, the relay station, and the slave station, and the master station and the relay station are each one step lower. The relay station and the slave station transmit their own station numbers to the relay station and the slave station, respectively. The station number of the station, the station number of the upper station above the first stage, and the adjustment delay amount of the own station are sent to the master station, and the master station receives the relay station and the slave station received from the relay station and the slave station. Time division multi-directional multiplex communication, comprising: arithmetic means for calculating the overall station configuration and the distance between the respective stations based on the station number of the station, the station number of the upper-level station on the first stage, and the adjustment delay amount. apparatus.