JP3886888B2 - Time division multiplex transmission equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a time division multiplex transmission apparatus that performs communication using a time division multiplex system, and particularly to a priority control system for IP data.
[0002]
[Prior art]
Conventionally, as this type of time division multiplex transmission apparatus, a loop interface apparatus that connects an information processing apparatus and a loop network has been provided, and transmission data from the information processing apparatus, its message type, and urgency level are controlled by a control section via the interface section. Information is received and stored in the storage unit, and the access flag determination unit is activated to detect a vacant time slot in the time slot received by the receiving unit from the loop network, and a free time slot is found. In addition, when the transmission data is emergency transmission data or short data, the transmission data is immediately transmitted using an empty time slot, and when the transmission data does not require urgency, every time an empty time slot is detected. The empty time slot counter is incremented by 1, and the empty time slot counter is Continued detection of the idle time slots until a few, there is one that transmits the transmission data was reached (e.g., see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-61-210743 (Fig. 4)
[0004]
[Problems to be solved by the invention]
However, in the above-described prior art, (1) transmission is not possible even when new emergency transmission data is received from an information processing device during transmission of a large amount of data, and (2) a large amount of data is vacant when it is generated from a plurality of information processing devices all at once. There was a problem that even if there were time slots, transmission could not be performed because the predetermined number was not reached.
[0005]
The present invention is intended to solve the above-described problem, and by determining the priority of a packet and changing the transmission channel for each priority, even if a plurality of transmission units are mounted, each uses a different channel. It is an object of the present invention to obtain a time division multiplex transmission apparatus that can transmit and receive packets and can perform packet communication with a guaranteed bandwidth that does not interfere with each other.
[0006]
[Means for Solving the Problems]
A time division multiplex transmission apparatus according to the present invention is a time division multiplex transmission apparatus that performs communication using a time division multiplex system. A plurality of packet transmission units that transmit and receive packet data between a packet terminal and a transmission path are provided according to a channel. The packet transmission unit includes a multiplexing unit that transmits a time division time slot to the multiple bus, a separation unit that receives the time division time slot from the separation bus , and relays packet data from the transmission path to the transmission path again. the relay queues, and a plurality of transmit queues and multiple receive queues, and priority determination unit that determines the priority of the packets from the terminus performs allocation of the transmission queue, the packet transmitted from the plurality of transmission queues Extraction and conversion of packets assigned to transmission queues extracted according to predetermined rules into time-slotted time slot data Includes a transmission queue selector to forward the packet to the conversion unit, stores the condition for priority determination, a priority determination condition storage unit for distributing the condition of priority determination in the priority determination unit, a plurality of channels It is possible to perform communication using the.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
FIG. 1 is a block diagram showing a network composed of time division multiplex transmission apparatuses according to Embodiment 1 of the present invention. As shown in FIG. 1, time division multiplexing transmission devices 2 a to 2 d for transmitting a plurality of communication line data by a time division multiplexing method are connected to a transmission line 1 for synchronous communication data, and time division multiplexing transmission devices 2 a to 2 d are connected. Packet terminals 5a to 5d are connected to packet transmission units 3a to 3d accommodated therein via LAN cables 4a to 4d.
[0008]
FIG. 2 is a block diagram showing a detailed configuration of the time division multiplex transmission apparatus 2 (generally referred to as 2a to 2d) and the packet transmission unit 3 (generally referred to as 3a to 3d) shown in FIG. The time division multiplex transmission apparatus 2 includes a transmission path interface 21 (collectively referred to as 21a and 21b) connected to the transmission path 1 (collectively referred to as 1a and 1b), a multiplexing / demultiplexing unit 22, a multiplex bus 23, a separation bus 24, and The packet transmission unit 3 is configured.
[0009]
The packet transmission unit 3 also includes a LAN interface 37, a transmission queue 35 for queuing packets transmitted by the LAN interface 37, and a packet for converting packets extracted from the transmission queue 35 into time-division time slot data → TS A conversion unit 33; a multiplexing unit 31 for transmitting the converted time-division time slot to the multiplex bus 23; a separation unit 32 for receiving the time-division time slot from the separation bus 24; and a time-division time received from the separation unit. The TS → conversion unit 34 that reconstructs packets from slots, and the reception queue 36 that queues the converted reception packets. The packet terminals 5a to 5d are connected to the packet transmission units 3a and 3b via the LAN cables 4a and 4b.
[0010]
FIG. 3 is a diagram for explaining a method of assigning a channel for packet transmission in the SDH frame 6 when the SDH (Synchronous Digital Hierarchy) method is adopted as the time division multiplex transmission method. A plurality of time slots 611 in the path frame 61 are allocated to the channel. For example, a continuous time slot group 612 is assigned to channel 1 and a continuous time slot group 613 is assigned to channel 2.
[0011]
FIG. 4 is a diagram for explaining another method for allocating a channel for packet transmission in the SDH frame 6 when the SDH method is adopted as the time division multiplex transmission method. A plurality of time slots 611 in the path frame 61 are allocated to the channel. For example, a time slot group 612 that is not continuous for channel 1 is allocated, and a time slot group 613 that is not continuous for channel 2 is allocated.
[0012]
Next, the operation will be described. In FIG. 2, a packet represented by an IP packet transmitted from the packet terminal 5 a or 5 b is received by the LAN interface 37 of the packet transmission unit 3 a installed in the time division multiplex transmission apparatus 2. The LAN interface 37 determines whether or not to transfer this packet to another time division multiplex transmission apparatus 2 based on the header portion of the packet, and when determining that the packet is to be transferred, queues the transmission packet in the transmission queue 35. .
[0013]
The packet → TS converter 33 pulls out one packet from the transmission queue 35, disassembles the packet into time division time slots and transfers the packet to the multiplexer 31. The multiplexer 31 controls the multiplexer / demultiplexer 22 under the control of the multiplexer / demultiplexer 22. A time division time slot is transmitted to the multiplex bus 23. The multiplexing / demultiplexing unit 22 multiplexes into the time slot of channel 1 (channel 1 time slot 612 shown in FIG. 3) assigned to the packet transmission unit 3a, and the transmission path interface 21 (generically 21a and 21b) and The data is transmitted to another time division multiplex transmission apparatus 2 via the transmission line 1.
[0014]
On the other hand, the time division time slot multiplexed on channel 1 by another time division multiplex transmission apparatus 2 is received by the transmission line interface 21 from the transmission line 1, and the multiplexing / demultiplexing unit 22 sends the time division time to the separation bus 24. The data in the slot is sent out, and the separation unit 32 of the packet transmission unit 3 takes in the data. The TS → packet conversion unit 34 reassembles the time-division time slot sequence into a packet and queues it in the reception queue 36. The LAN interface 37 pulls out one packet from the reception queue 36, sends out the packet to the LAN cable 4a side, and the packet terminals 5a and 5b receive this packet.
[0015]
Another packet transmission unit 3b implemented in the time division multiplex transmission apparatus 2 transmits and receives packets in the same procedure as the packet transmission unit 3a, but is different from the channel transmission unit 3a in the channel 2 (the channel shown in FIG. 3). 1 time slot 613) is multiplexed with the time division time slot converted from the packet.
[0016]
Therefore, according to the first embodiment, by determining the priority of a packet and changing the transmission channel for each priority, even if a plurality of packet transmission units 3 are mounted, each uses a different channel. Therefore, packet communication with a guaranteed bandwidth that does not interfere with each other can be realized.
[0017]
Embodiment 2. FIG.
In the first embodiment described above, the packet transmission unit 3 can only perform multiplexing and demultiplexing on the transmission path 1 side, and therefore can perform only one-to-one counter communication with the packet transmission unit 3. Therefore, in the second embodiment, as shown in FIG. 5, a relay queue 38 for relaying packet data from the transmission path 1 to the transmission path 1 again between the separation unit 32 and the multiplexing unit 31 shown in FIG. By providing a relay function, N-to-N communication between three or more packet transmission units 3 is possible. FIG. 5 shows detailed configurations of the time division multiplex transmission apparatus 2 and the packet transmission unit 3 according to the second embodiment. The same parts as those of the first embodiment shown in FIG. The description is omitted.
[0018]
Next, the operation will be described. A packet typified by an IP packet transmitted from the packet terminal 5 (generally 5a and 5b) is converted into a time division multiplex time slot and sent to the multiplex bus 23 by the multiplex unit 31. If a time-division time slot is queued in the relay queue 38, data is extracted from this and sent to the multiplex bus 31. When nothing is queued in the relay queue 38, the time division time slot from the packet → TS conversion unit 33 is sent to the multiplex bus 23.
[0019]
The separation unit 32 queues the time division time slot received from the separation bus 24 to the relay queue 38 when it is determined that it is not addressed to itself from the packet header, and when it is determined that it is addressed to itself, the TS → packet conversion unit 34. To queue. In the case of multicast communication, queuing is performed in both the relay queue 38 and the TS → packet conversion unit 34.
[0020]
When there is data in both the relay queue 38 and the packet → TS converter 33, the multiplexing unit 31 uses a method that prioritizes the relay queue 38 as the contention control method, or uses the relay queue 38 and the packet → Whether to use the round robin method in which the TS converter 33 alternately processes one packet at a time can be changed by setting.
[0021]
Therefore, according to the second embodiment, by providing the relay queue 38 in the packet transmission unit 3, even when a plurality of packet transmission units 3 are mounted in the time division multiplexing transmission device 2, each uses a different channel. Can transmit and receive packets and has a relay function, so it can freely transmit and receive between three or more packet transmitters 3, enabling packet communication with guaranteed bandwidth without interfering with each other. And
[0022]
Embodiment 3 FIG.
In the first and second embodiments described above, a case has been described in which a channel configured of a time slot group for multiplexing transmission / reception data is assigned to each packet transmission unit 3, but in the third embodiment, one packet transmission unit 3 is used. A method for assigning a plurality of channels and changing the multiplexed channel based on the packet header will be described.
[0023]
FIG. 6 is a block diagram showing detailed configurations of the time division multiplex transmission apparatus 2 and the packet transmission unit 3 according to the third embodiment. In FIG. 6, the same reference numerals as those of the second embodiment shown in FIG. The packet transmission unit 3 according to Embodiment 3 shown in FIG. 6 is a packet that determines a plurality of transmission queues 35a to 35b and a plurality of reception queues 36a to 36b and a transmission queue that stores packets from the terminal according to certain rules. A distribution unit 39 and a reception aggregating unit 40 that transfers packets from a plurality of reception queues to the terminal side according to a priority order according to a certain rule.
[0024]
The LAN interface 37 transfers the transmission packet to the transmission distribution unit 39, and the transmission distribution unit 39 determines the packet from one of the transmission queue 35a to the transmission queue 35b based on the packet header. Which transmission queue is to be queued follows a preset rule. As an example, when the packet is an IP packet, the transmission queue is selected based on the destination IP address.
[0025]
Each transmission queue 35a to 35b is provided with a packet → TS converter 33a to 33b, and a packet extracted from the transmission queue is converted into a time-division time slot by each packet → TS converter 33a to 33b. It is transferred to the multiplexing unit 31.
[0026]
The multiplexing unit 31 transmits the packet to the multiplexing bus 23 so as to be multiplexed on the channels (independent groups of time slots) respectively assigned to the packet → TS conversion units 33a to 33b. The multiplexing / demultiplexing unit 22 multiplexes the time division time slot transmitted from the multiplexing unit 31 on the corresponding channel.
[0027]
In the receiving direction, the demultiplexing unit 32 that has received the time division time slot from the multiplexing / demultiplexing unit 22 queues the data that needs to be relayed in units of channels to the corresponding relay queue 38 (generically 38a to 38b), The data received by the user is transferred to the TS → packet conversion unit 34 (generally 34a to 34b) corresponding to the channel, and the TS → packet conversion unit 34 reassembles the packet from the received data and handles the packet. It is queued in the reception queue 36 (generically referring to 36a to 36b).
[0028]
The reception aggregating unit 40 selects one reception queue 36 from a plurality of reception queues 36 according to a predetermined priority order, extracts a packet, and transfers the packet to the LAN interface 37. Various fixed or variable algorithms can be applied to the priorities.
[0029]
Therefore, according to the third embodiment, a plurality of transmission queues 35a to 35b and a plurality of reception queues 36a to 36b are determined in one packet transmission unit 3 and a transmission queue for storing packets from a terminal according to a certain rule. A packet distribution unit 39, and a reception aggregation unit 40 that forwards packets from a plurality of reception queues to the terminal side according to priority according to a certain rule, so that the packet transmission unit 3 is assigned a plurality of channels, Since the channel to be multiplexed can be determined by the type based on the packet header, even one packet transmission unit 3 can perform packet communication with guaranteed bandwidth without interfering with each other for each packet type.
[0030]
Embodiment 4 FIG.
In the third embodiment described above, a case has been described in which the packet transmission unit 3 allocates a channel composed of a time slot group that multiplexes transmission / reception data in units of types based on the header of the packet. A method for multiplexing a plurality of types of packets on one channel according to priority will be described.
[0031]
FIG. 7 is a block diagram showing detailed configurations of the time division multiplex transmission apparatus 2 and the packet transmission unit 3 according to the fourth embodiment. 7, the same reference numerals as those in the third embodiment shown in FIG. 6 denote the same parts, and the description thereof is omitted. The packet transmission unit 3 according to Embodiment 4 shown in FIG. 7 determines the priority of a packet from a terminal and distributes a plurality of transmission queues 35, and transmits from a plurality of transmission queues 35. A transmission queue selection unit 41 for extracting a packet and assigning the packet to a time-sharing time slot data, which is assigned to a transmission queue extracted according to a predetermined rule, and transferring the packet to the TS conversion unit 33 Yes.
[0032]
7, the LAN interface 37 transfers the transmission packet to the priority determination unit 42, the priority determination unit 42 queues the transmission packet in a plurality of transmission queues 35, and the transmission queue selection unit 41 includes a plurality of transmission queues. The transmission packet is extracted from the transmission queue 35, and the packet is transferred from the packet assigned to the extracted transmission queue 35 to the TS conversion unit 33 according to a predetermined rule. The subsequent operations are the same as those in the third embodiment. The reception direction is the same as that in the third embodiment. Further, the assignment from the transmission queue 35 to the packet → TS conversion unit 33 can be one-to-one or N-to-one according to a predetermined rule.
[0033]
Therefore, according to the fourth embodiment, the packet transmission unit 3 determines the priority of the packet from the terminal and distributes the plurality of transmission queues 35, and the transmission from the plurality of transmission queues 35. The packet transmission unit 3 allocates a plurality of channels because the packet transmission unit 3 includes a transmission queue selection unit 41 that extracts a packet and transfers the packet to the TS conversion unit 33 that is allocated to the transmission queue extracted according to a predetermined rule. Therefore, one packet type can be multiplexed on a certain channel, and multiple types of packets can be multiplexed on a certain channel according to a predetermined priority. Bandwidth is shared by multiple packet types and packet communication that guarantees a bandwidth that does not interfere with It is possible to provide a crack packet communication.
[0034]
Embodiment 5 FIG.
In the above-described fourth embodiment, the case where the packet transmission unit 3 multiplexes one packet type to a certain channel and multiplexes plural types of packets to another certain channel according to the priority has been described. In the fifth embodiment, a case will be described in which when a plurality of types of packets are multiplexed on a channel according to priority, the relay unit also relays according to priority.
[0035]
FIG. 8 is a block diagram showing a detailed configuration of the time division multiplex transmission apparatus 2 and the packet transmission unit 3 according to the fifth embodiment. 8, the same reference numerals as those in the fourth embodiment shown in FIG. 7 denote the same parts, and the description thereof is omitted. The packet transmission unit 3 according to the fifth embodiment illustrated in FIG. 8 includes a relay queue distribution unit 43 that determines the priority of relay data from the transmission path and distributes the relay queue 38.
[0036]
In FIG. 8, the separation unit 32 that has received the time division time slot from the multiplexing / separation unit 22 passes the data that needs to be relayed to the relay queue distribution unit 43. Similar to the priority determination unit 42, the relay queue distribution unit 43 distributes to a plurality of relay queues 38 for each priority according to a predetermined rule, and passes it to the transmission queue selection unit 41. The transmission queue selection unit 41 transmits data from the relay queue 38 and the transmission queue 35 to the assigned packet → TS conversion unit 33 in accordance with a predetermined rule. Subsequent operations are the same as those in the fourth embodiment.
[0037]
Therefore, according to the fifth embodiment, the packet transmission unit 3 includes the relay queue distribution unit 43 that determines the priority of relay data from the transmission path and distributes the relay queue 38. Since multiple channels are allocated and multiple types of packets are multiplexed, re-multiplexing is performed according to the priority of multiplexed data and the priority of relay data, so relay data is higher than high-priority packets of multiplexed data. The low priority packet is not prioritized, and consistent priority control is possible.
[0038]
Embodiment 6 FIG.
In the above-described fifth embodiment, the case where the packet transmission unit 3 performs queuing and channel determination according to the priority at the time of multiplexing and relaying has been described, but in the sixth embodiment, the separation unit also separates according to the priority. Describe the case.
[0039]
FIG. 9 is a block diagram showing detailed configurations of the time division multiplex transmission apparatus 2 and the packet transmission unit 3 according to the sixth embodiment. In FIG. 9, the same reference numerals as those of the fifth embodiment shown in FIG. The packet transmission unit 3 according to the sixth embodiment illustrated in FIG. 9 is a reception queue distribution unit 34 (generally 34a to 34b) that determines the priority of the separated packet from the transmission path and distributes the reception queue 36. And a reception aggregating unit 40 that performs data transmission to the terminal according to priority.
[0040]
In FIG. 9, the packet reconstructed by the TS → packet conversion unit 34 is transferred to the reception queue distribution unit 45. The reception queue distribution unit 45 distributes and queues to a plurality of reception queues 36 for each priority according to a predetermined rule. The reception aggregating unit 40 selects one reception queue 36 from a plurality of reception queues 36 according to a predetermined priority order, extracts a packet, and transfers the packet to the LAN interface 40. Various fixed or variable algorithms can be applied to the priorities.
[0041]
Therefore, according to the sixth embodiment, the packet transmission unit 3 determines the priority of the separated packet from the transmission path and distributes the reception queue 36 to the terminal according to the priority. And a reception aggregation unit 40 that performs data transmission of the above-described data. Therefore, when multiple types of packets are multiplexed on one channel, priority control is performed even in the process of transmission from the separation to the terminal, so that low priority is achieved. Can be received by the terminal in preference to the other packet.
[0042]
Embodiment 7 FIG.
FIG. 10 is a block diagram of the packet transmission unit 3 according to the seventh embodiment. 10, the same reference numerals as those in the sixth embodiment shown in FIG. 9 denote the same parts, and the description thereof will be omitted. The packet transmission unit 3 according to the seventh embodiment illustrated in FIG. 10 accumulates the determination conditions for priority determination, and each of the priority determination unit 42, the relay queue distribution unit 43, and the reception queue distribution unit 45 performs priority determination. A priority determination condition accumulation unit 46 for distributing the conditions is provided.
[0043]
The priority determination condition accumulating unit 46 can be set by an arbitrary method such as setting from an external management device or transmission of conditions from another packet transmission unit 3.
[0044]
Moreover, as conditions for priority determination, the following can be considered, for example.
-Source MAC address-Destination MAC address-TYPE field value of MAC frame-Priority value in VLAN tag-Source IP address-Destination IP address-Protocol in IP header-Value in TOS field in IP header-TCP Source port number, TCP destination port number, UDP source port number, UDP destination port number, arbitrary value in any position in the MAC frame
Therefore, according to the seventh embodiment, by providing the packet transmission unit 3 with the priority determination condition accumulation unit 46, it is possible to collectively manage priority determination conditions, and a plurality of various conditions can be managed. It is possible to apply without contradiction at the priority determination points.
[0046]
Embodiment 8 FIG.
In the packet transmission unit 3 according to the seventh embodiment described above, the priority determination condition storage unit 46 can store various priority determination conditions, and some of the settings may contradict each other. . For example, it may happen that a certain packet is determined to have high priority in the determination based on the transmission source IP address, and is determined to be low priority in the protocol in the IP header.
[0047]
Therefore, the priority determination condition accumulating unit 46 according to the eighth embodiment stores a rule for solving such a contradiction when such a contradiction occurs, and the priority determination unit 42 and the relay queue distribution together with the determination condition. Distributed to the reception unit 43 and the reception queue distribution unit 45.
[0048]
As a resolution rule, for example, the following can be considered.
-Always prioritize high priority-Always prioritize low priority-Prioritize priority judgment with early matching of judgment conditions-Prioritize priority judgment with late judgment conditions
Therefore, according to the eighth embodiment, the conflict resolution rules are stored in the priority determination condition storage unit 46, and the priority determination unit 42, the relay queue distribution unit 43, and the reception queue distribution unit 45 simultaneously with the priority determination. By using this contradiction resolution rule, it is possible to determine an appropriate priority even when a plurality of priority determination conditions conflict.
[0050]
【The invention's effect】
As described above, according to the present invention, even when a plurality of packet transmission units are mounted, packets can be transmitted and received using different channels, so packets that do not interfere with each other and have guaranteed bandwidths. Communication is possible.
[Brief description of the drawings]
FIG. 1 is a diagram of a network composed of time division multiplex transmission apparatuses according to Embodiment 1 of the present invention;
FIG. 2 is a detailed block diagram of a time division multiplex transmission apparatus and a packet transmission unit according to the first embodiment of the present invention.
FIG. 3 is a diagram showing a scheme for allocating a channel for packet transmission in an SDH frame according to Embodiment 1 of the present invention;
FIG. 4 is a diagram showing a scheme for allocating a channel for packet transmission in an SDH frame according to the first embodiment of the present invention.
FIG. 5 is a detailed block diagram of a time division multiplex transmission apparatus and a packet transmission unit according to Embodiment 2 of the present invention;
FIG. 6 is a detailed block diagram of a time division multiplex transmission apparatus and a packet transmission unit according to Embodiment 3 of the present invention.
FIG. 7 is a detailed block diagram of a time division multiplex transmission apparatus and a packet transmission unit according to Embodiment 4 of the present invention.
FIG. 8 is a detailed block diagram of a time division multiplex transmission apparatus and a packet transmission unit according to a fifth embodiment of the present invention.
FIG. 9 is a detailed block diagram of a time division multiplex transmission apparatus and a packet transmission unit according to a sixth embodiment of the present invention.
FIG. 10 is a detailed block diagram of a time division multiplex transmission apparatus and a packet transmission unit according to a seventh embodiment of the present invention.
[Explanation of symbols]
1, 1a, 1b transmission path, 2, 2a-2d time division multiplex transmission device, 3, 3a-3d packet transmission unit, 4, 4a-4d LAN cable, 5, 5a-5d packet terminal, 21, 21a, 21b transmission Path interface, 22 multiplexing / demultiplexing unit, 23 multiplexing bus, 24 demultiplexing bus, 31 multiplexing unit, 32 demultiplexing unit, 33, 33a, 33b packet → TS converting unit, 34, 34a, 34b TS → converting unit, 35, 35a, 35b transmission queue, 36, 36a, 36b reception queue, 37LAN interface, 38, 38a, 38b relay queue, 40 reception aggregation section, 41 transmission queue selection section, 42 priority determination section, 43 relay queue distribution section, 45 reception queue distribution , 46 Priority determination condition accumulation unit.

Claims (5)

In a time division multiplex transmission apparatus that performs communication using a time division multiplex method,
A plurality of packet transmission units for transmitting and receiving packet data between a packet terminal and a transmission line are provided according to the channel. The packet transmission unit includes a multiplexing unit that transmits time-division time slots to the multiplexed bus, and a time from the separation bus. determining a separation unit for receiving the divided time slots, and the relay queues for relaying again transmission path packet data from the transmission line, a plurality of transmit queues and multiple receive queues, the priority of packets from the terminus A priority determination unit that distributes the transmission queue, and extracts the transmission packet from the plurality of transmission queues, and assigns the packet assigned to the transmission queue extracted according to a predetermined rule to time-division time slot data. and transmitting queue selection unit for transferring the packet to the conversion unit for converting, and storing the condition of the priority determination, the priority determination unit And a priority determination condition storage unit for distributing the condition of the priority determination, division multiplex transmission apparatus when, characterized in that to enable communication using multiple channels. In the time division multiplex transmission apparatus according to claim 1,
The time division multiplexing transmission apparatus, wherein the packet transmission unit further includes a relay queue distribution unit that determines the priority of relay data from a transmission path and distributes the relay queue. In the time division multiplex transmission apparatus according to claim 2,
The packet transmission unit further includes a reception queue distribution unit that determines the priority of the separated packet from the transmission path and distributes the reception queue, and a reception aggregation unit that transmits data to the terminal according to the priority A time division multiplex transmission device comprising: In the time division multiplex transmission apparatus according to claim 3,
It said priority determination condition storage unit, you distribute condition priority determination before Symbol repeater queue distribution unit and the receive queue distribution unit
Division multiplexing transmission apparatus when said and this. In the time division multiplex transmission apparatus according to claim 4,
Said priority determination condition storage unit, a rule to resolve conflict determination condition and store, the priority determining unit and the relay queue distribution unit and the receiving queue distribution unit, from the priority determination condition storage unit A time division multiplex transmission device that automatically resolves conflicts when they occur, according to the conflict resolution rules.

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