JP6065108B2 - Wireless communication apparatus, wireless communication system, and wireless communication method - Google Patents

Description

  The present invention relates to a radio communication device, a radio communication system, and a radio communication method, and more particularly, to a radio communication device, a radio communication system, and a radio communication method capable of transmitting data via a plurality of radio channels.

  In a packet transmission network, a network using a wireless line has a small capacity that can be transmitted by only one wireless line. Therefore, there are cases where a plurality of wireless lines are bundled to ensure a transmission capacity virtually as one line. In other words, a single traffic is distributed over a plurality of wireless lines, thereby ensuring a transmission capacity for the entire wireless line. This bundling of a plurality of wireless lines is called link aggregation or traffic bonding.

  In relation to the above technique, for example, Patent Document 1 discloses a transmission system including a link aggregation system that demultiplexes transmission frames transmitted over a plurality of lines formed between transmission apparatuses for each line in a data link layer. Is disclosed. The transmission apparatus has an aggregation switch. This aggregation switch reassembles a network frame used in an external network into an MRL (Multi-Radio-Linc) frame, distributes the MRL frame for each radio link, and aggregates the MRL frames for each radio link to form a network frame. Reassemble to.

JP 2010-258606 A

  In Patent Document 1 described above, there is only a description that the distribution of the MRL frame to be distributed for each radio link is determined based on information on adaptive modulation control performed by a radio entrance unit. There was a problem that data could not be efficiently distributed according to the bandwidth of the network.

  An object of the present invention is to solve such problems, and a wireless communication device, a wireless communication system, and a wireless communication capable of efficiently distributing data in accordance with a band of a plurality of wireless lines It is to provide a method.

  A wireless communication apparatus according to the present invention includes a dividing unit that divides data into a plurality of data parts, a band control unit that sets a communication speed by performing band control for each of a plurality of wireless lines, and band control of the band control unit In accordance with the communication speed of each of the plurality of wireless lines set by the above, an adding means for adding an identifier corresponding to each of the plurality of wireless lines to the plurality of data parts, and each of the plurality of data parts, Based on an identifier added to the plurality of data portions, a distribution unit that distributes to any of the plurality of wireless lines, and the plurality of wireless lines to which the plurality of data portions are distributed. And transmitting means for transmitting to another wireless communication device.

  Another wireless communication apparatus according to the present invention includes: a receiving unit that receives a plurality of data portions obtained by dividing data from another wireless communication apparatus via a plurality of wireless lines; and the plurality of wireless lines A plurality of memories provided corresponding to each of the plurality of data portions received by the receiving means via each of the plurality of wireless lines; And assembly means for generating original data by extracting and assembling in the order in the data.

  A wireless communication system according to the present invention includes a first wireless communication device that transmits data and a second wireless communication device that receives the data, and the first wireless communication device transmits data to a plurality of wireless communication devices. Dividing means for dividing the data portion; bandwidth control means for setting a communication speed by performing bandwidth control for each of the plurality of wireless lines; and communication speeds of the plurality of wireless lines set by the bandwidth control of the bandwidth control means And adding means for adding an identifier corresponding to each of the plurality of wireless lines to the plurality of data portions, and each of the plurality of data portions based on the identifier added to the plurality of data portions. Allocating means for allocating to any of the plurality of wireless lines; and the plurality of data portions through the plurality of wireless lines to which the plurality of data portions are distributed Transmitting means for transmitting to a second wireless communication device, wherein the second wireless communication device receives the plurality of data portions from the first wireless communication device via the plurality of wireless lines. Receiving means for receiving, and assembling means for assembling the plurality of data portions to generate original data.

  The wireless communication method according to the present invention divides data into a plurality of data portions, performs band control for each of the plurality of wireless lines, sets a communication speed, and sets each of the plurality of wireless lines set by the band control. Depending on the communication speed, an identifier corresponding to each of the plurality of wireless lines is added to the plurality of data portions, and each of the plurality of data portions is based on the identifier added to the plurality of data portions, The data is distributed to any one of the plurality of wireless lines, and the plurality of data parts are transmitted to another wireless communication apparatus via the plurality of wireless lines to which the plurality of data parts are distributed.

  ADVANTAGE OF THE INVENTION According to this invention, the radio | wireless communication apparatus, radio | wireless communications system, and radio | wireless communication method which can distribute data efficiently according to the zone | band of a some radio | wireless line can be provided.

It is a figure which shows the outline | summary of the radio | wireless communication apparatus concerning embodiment of this invention. 1 is a diagram showing a wireless communication system according to a first exemplary embodiment. 1 is a diagram showing a configuration of a wireless communication apparatus according to a first exemplary embodiment. 1 is a diagram illustrating a configuration of a divided circuit according to a first embodiment; 1 is a diagram illustrating a configuration of an assembly circuit according to a first embodiment; FIG. 3 is a diagram illustrating information processed by the dividing circuit according to the first embodiment; FIG. 3 is a diagram illustrating a destination address correspondence table stored in a destination address correspondence table storage unit according to the first embodiment; FIG. 3 is a diagram illustrating an example of a time chart for explaining processing of a line-specific bandwidth control unit according to the first exemplary embodiment; It is a figure which illustrates the packet produced | generated in the example of FIG. FIG. 3 is a diagram illustrating information processed by the assembly circuit according to the first embodiment; FIG. 10 is a diagram illustrating the order of data portions stored in the line-specific memory in the example of FIG. 9. It is a flowchart which shows operation | movement of the radio | wireless communication apparatus of a transmission side. It is a flowchart which shows operation | movement of the radio | wireless communication apparatus of a receiving side.

[Outline of Embodiment of the Present Invention]
Prior to the description of the embodiment, the outline of the embodiment according to the present invention will be described with reference to FIG. FIG. 1 is a diagram showing an outline of a wireless communication device 1 according to an embodiment of the present invention. As shown in FIG. 1, the wireless communication apparatus 1 includes a dividing unit 12, a band control unit 14, an adding unit 16, a distributing unit 18, and a transmitting unit 20.

  The dividing unit 12 divides the data into a plurality of data parts. The bandwidth control unit 14 performs bandwidth control for each of a plurality of wireless lines to set a communication speed. The adding unit 16 adds an identifier corresponding to each of the plurality of radio channels to the plurality of data portions according to the communication speed of each of the plurality of radio channels set by the band control of the band control unit 14.

The distribution unit 18 distributes each of the plurality of data portions to one of the plurality of wireless lines based on the identifier added to the plurality of data portions. The transmission means 20 transmits a plurality of data portions to other wireless communication devices via a plurality of wireless lines to which the plurality of data portions are distributed.
According to the wireless communication apparatus 1 according to the embodiment of the present invention, data can be efficiently distributed according to the bands of a plurality of wireless lines.

[Embodiment 1]
Hereinafter, embodiments will be described with reference to the drawings.
FIG. 2 is a diagram of the wireless communication system 50 according to the first embodiment. The wireless communication system 50 includes a wireless communication device A100A (first wireless communication device) and a wireless communication device B100B (second wireless communication device). The wireless communication device A 100A and the wireless communication device B 100B are connected to each other through four wireless lines # 1 to # 4 so that wireless communication is possible.

  The wireless communication device A 100A and the wireless communication device B 100B are connected to user lines 60A and 60B, respectively. The user lines 60A and 60B are lines connected to a network such as a communication carrier or a provider carrier. The wireless communication device A 100A and the wireless communication device B 100B transmit and receive user data via the user lines 60A and 60B. Here, the wireless communication system 50 may be compliant with, for example, Ethernet (registered trademark).

  The wireless communication device A100A has four antennas 102A-1 to 102A-4. The antenna 102A-1 transmits and receives radio waves via the wireless line # 1. The antenna 102A-2 transmits and receives radio waves via the wireless line # 2. The antenna 102A-3 transmits and receives radio waves via the wireless line # 3. The antenna 102A-4 transmits and receives radio waves via the wireless line # 4.

  Similarly, the wireless communication device B100B includes four antennas 102B-1 to 102B-4. The antenna 102B-1 transmits and receives radio waves via the wireless line # 1. The antenna 102B-2 transmits and receives radio waves via the wireless line # 2. The antenna 102B-3 transmits and receives radio waves via the wireless line # 3. The antenna 102B-4 transmits and receives radio waves via the wireless line # 4.

  Here, the wireless communication device A 100A and the wireless communication device B 100B perform wireless communication by bonding four wireless lines # 1 to # 4 to one traffic. In other words, the wireless communication device A 100A and the wireless communication device B 100B perform link aggregation for the four wireless lines # 1 to # 4. Thus, by bonding a plurality of wireless lines, the wireless communication device A 100A and the wireless communication device B 100B ensure a transmission capacity.

  Further, the wireless communication device A100A receives user data via a user line and divides the user data into a plurality of data portions. Also, the wireless communication device A100A performs band control for the wireless lines # 1 to # 4, and distributes a plurality of data portions to the wireless lines # 1 to # 4 that have been subjected to band control. The wireless communication device A100A transmits the distributed data portions to the wireless communication device B100B via the wireless lines # 1 to # 4 to which the multiple data portions are distributed. When wireless communication device B 100B receives a plurality of data portions from wireless communication device A 100A via wireless lines # 1 to # 4, it assembles the plurality of data portions and generates original user data ( Restore. Details will be described later.

  The following description is based on the assumption that data is transmitted from the wireless communication apparatus A100A to the wireless communication apparatus B100B. However, data may be transmitted from the wireless communication apparatus B100B to the wireless communication apparatus A100A. Further, the wireless communication device A100A and the wireless communication device B100B may have the same components. Hereinafter, the wireless communication device A 100A and the wireless communication device B 100B will be described on the assumption that they have the same components.

  Hereinafter, the wireless communication device A 100A and the wireless communication device B 100B are collectively referred to as the wireless communication device 100. Hereinafter, when a plurality of components are described without being distinguished, such as the antennas 102A-1 to 102A-4, they may be collectively referred to as the antenna 102A. Moreover, when not distinguishing whether it is a component of radio | wireless communication apparatus A100A, or a component of radio | wireless communication apparatus B100B, it may be named generically as antenna 102-1-102-4. Furthermore, when it demonstrates without distinguishing a some component, it may generically call the antenna 102 grade | etc.,.

  FIG. 3 is a diagram illustrating a configuration of the wireless communication device 100. The wireless communication apparatus 100 includes a destination address correspondence table storage unit 110, a dividing circuit 120, a line distribution circuit 140, wireless transmission / reception circuits 150-1 to 150-4, and an assembly circuit 160. Here, the radio transmission / reception circuits 150-1 to 150-4 are associated with the radio lines # 1 to # 4, respectively.

  The line distribution circuit 140 is a switch circuit, and may be, for example, an OSI (Open Systems Interconnection) reference model layer 2 switch (L2 switch). The dividing circuit 120 and the assembly circuit 160 are electrically connected to the line distribution circuit 140. Here, the dividing circuit 120 and the assembly circuit 160 are connected to ports of the line distribution circuit 140, respectively.

  The line distribution circuit 140 is electrically connected to the wireless transmission / reception circuits 150-1 to 150-4. Here, the wireless transmission / reception circuit 150-1 is connected to a port related to the wireless line # 1 of the line distribution circuit 140. Similarly, the wireless transmission / reception circuit 150-2 is connected to a port related to the wireless line # 2 of the line distribution circuit 140. In addition, the wireless transmission / reception circuit 150-3 is connected to a port related to the wireless line # 3 of the line distribution circuit 140. Further, the wireless transmission / reception circuit 150-4 is connected to a port related to the wireless line # 4 of the line distribution circuit 140.

  FIG. 4 is a diagram illustrating a configuration of the dividing circuit 120. The dividing circuit 120 includes a data dividing unit 122, band-specific bandwidth control units 124-1 to 124-4, packet generation units 126-1 to 126-4, and a packet transmission unit 128. Here, the band-specific bandwidth control units 124-1 to 124-4 are associated with the wireless lines # 1 to # 4, respectively. Similarly, the packet generation units 126-1 to 126-4 are associated with the wireless lines # 1 to # 4, respectively.

  FIG. 5 is a diagram showing the configuration of the assembly circuit 160. The assembly circuit 160 includes a packet reception unit 162, line-specific memories 164-1 to 164-4, a packet assembly unit 166, and a data transmission unit 168. Here, the line-specific memories 164-1 to 164-4 are associated with the wireless lines # 1 to # 4, respectively.

  The destination address correspondence table storage unit 110 includes, for example, a memory, and stores a destination address correspondence table as described later with reference to FIG. This destination address correspondence table can be appropriately changed by a system administrator or the like.

[Sender]
First, the operation contents of the components of the radio communication apparatus A100A on the transmission side will be described. However, the operation contents described below may be performed in the radio communication apparatus B100B on the reception side.

  The wireless transmission / reception circuit 150-1 is connected to the antenna 102-1, transmits / receives data via the wireless line # 1, and performs modulation / demodulation processing. Similarly, the wireless transmission / reception circuit 150-2 is connected to the antenna 102-2, transmits / receives data via the wireless line # 2, and performs modulation / demodulation processing. The wireless transmission / reception circuit 150-3 is connected to the antenna 102-3, transmits / receives data via the wireless line # 3, and performs modulation / demodulation processing. The wireless transmission / reception circuit 150-4 is connected to the antenna 102-4, transmits / receives data via the wireless line # 4, and performs modulation / demodulation processing.

  The radio transmission / reception circuit 150-1 monitors the radio wave condition in the radio line # 1, performs adaptive modulation processing according to the radio wave condition, and changes the modulation method as appropriate. For example, when the radio transmission / reception circuit 150-1 is compatible with AMR (Adaptive Modulation Radio) control, the radio transmission / reception circuit 150-1 changes in radio channel status due to weather fluctuations, that is, the quality of the radio channel deteriorates. If so, the modulation scheme is changed accordingly, and the radio band is changed. For example, when 16QAM, 64QAM, 256QAM, or the like, which is a multi-level modulation method, is used as the modulation method, one modulation method may be selected from these modulation methods according to the radio channel status.

  Furthermore, the radio transmission / reception circuit 150-1 determines the radio band (bandwidth) of the radio line # 1 according to the modulation method. This determined radio band may be the maximum (or minimum) allowable radio band (communication speed). In addition, the radio transmission / reception circuit 150-1 generates radio band information # 1 indicating the radio band of the radio line # 1. Furthermore, the radio transmission / reception circuit 150-1 transmits the radio band information # 1 to the band-specific band control unit 124-1 of the dividing circuit 120.

  Note that the wireless transmission / reception circuits 150-2 to 150-4 also perform the adaptive modulation processing as described above for the wireless lines # 2 to # 4 in the same manner as the wireless transmission / reception circuit 150-1. Similarly to the radio transmission / reception circuit 150-1, the radio transmission / reception circuits 150-2 to 150-4 have radio band information # 2 to radio band information # 4 indicating the radio bands of the radio lines # 2 to # 4, respectively. Is generated. Then, the radio transmission / reception circuit 150-2 transmits the radio band information # 2 to the band-specific band control unit 124-2 of the dividing circuit 120. Also, the radio transmission / reception circuit 150-3 transmits the radio band information # 3 to the line-specific band control unit 124-3 of the dividing circuit 120. Also, the radio transmission / reception circuit 150-4 transmits the radio band information # 4 to the line-specific band control unit 124-4 of the dividing circuit 120.

  FIG. 6 is a diagram illustrating information processed by the dividing circuit 120. Hereinafter, the dividing circuit 120 will be described with reference to FIGS. 4 and 6. The data dividing unit 122 receives user data illustrated in FIG. 6A via the data line 60. As illustrated in FIG. 6A, the user data includes a header, a payload indicating the contents (content or the like) of the user data, and error detection information.

The header indicates information related to user data, and includes, for example, DA (Destination Address), SA (Source Address), VID (VLAN (Virtual Local Area Network) ID), and type information. May be included. DA is a destination MAC (Media Access Control) address, for example, and indicates the address of a destination node of user data. SA is, for example, a transmission source MAC address, and indicates the address of a transmission source node of user data. VID indicates the identifier of the VLAN being used. The type information indicates, for example, the type of payload protocol or the data length of the payload.
The error detection information is, for example, FCS (Frame Check Sequence), and is information for detecting a data error using CRC (Cyclic Redundancy Check) or the like.

  Further, the data dividing unit 122 divides user data into data parts # 1 to #N (N is an integer of 1 or more). Here, the sizes of the data portions # 1 to #N may be the same, for example, may be a predetermined fixed length of 256 bytes. Note that the size of the fixed length may vary depending on the total amount of data communication in the flowing traffic. For example, when the total data communication amount in traffic is large, the size of the data portions # 1 to #N may be increased.

  In this case, when the size of the last data portion (data portion #N) is smaller than the sizes of the other data portions # 1 to # (N−1), blank data (zero data) is added. Thus, the size of the last data portion #N may be the same as the size of the other data portions # 1 to # (N−1). Alternatively, the data dividing unit 122 refers to the data length indicated in the type information included in the header of the user data, and divides the user data so that the sizes of the data portions # 1 to #N are equal. Also good. In this case, the size of the data portions # 1 to #N may be slightly larger (or smaller) than the fixed length.

  The data portions # 1 to #N include not only the payload of user data but also a header and error detection information. That is, the data dividing unit 122 divides all user data and generates data portions # 1 to #N.

  Further, as illustrated in FIG. 6B, the data dividing unit 122 adds the order information # 1 to #N to the divided data portions # 1 to #N, respectively. Here, the order information is a sequence number of each of the data portions # 1 to #N. That is, for example, the order information # 1 added to the data portion # 1 that is the first data portion is a sequence number indicating that it is the first. By adding this order information, the data portions # 1 to #N can be restored to the original user data in the radio communication apparatus 100 on the receiving side, as will be described later. The order information may be control information such as overhead (OH).

  Note that the order information # 1 to #N may have the same size. That is, since the sizes of the data parts # 1 to #N are the same, the data (data shown in FIG. 6B) in which the data parts # 1 to #N and the order information # 1 to #N are combined is obtained. , They are the same size.

  The bandwidth control units 124-1 to 124-4 for each line perform bandwidth control on the wireless lines # 1 to # 4, respectively. The line-specific band control unit 124-1 will be described below, but the same applies to the line-specific band control units 124-2 to 124-4.

The line-specific band control unit 124-1 receives the wireless band information # 1 related to the wireless line # 1 from the wireless transmission / reception circuit 150-1. The bandwidth control unit 124-1 for each line sets the communication speed in the wireless line # 1 using the wireless band information # 1. For example, the line-specific band control unit 124-1 sets the communication speed within a range that does not deviate from the radio band (allowable communication speed) indicated in the radio band information # 1 according to the traffic and the congestion status of the radio line # 1. It may be set.
Similarly, the band-specific bandwidth control units 124-2 to 124-4 also have the wireless band information # 2 to the wireless band information regarding the wireless lines # 2 to # 4 from the wireless transmission / reception circuits 150-2 to 150-4. Using # 4, the communication speed in the wireless line # 2 to the wireless line # 4 is set.

Further, the bandwidth control unit for each line 124-1 performs counting at a frequency according to the communication speed set for the wireless line # 1, and each time the count is performed, the data division unit 122 performs an example as illustrated in FIG. One data part to which such order information is added is acquired. Specifically, the line-specific bandwidth control unit 124-1 calculates the count frequency (count frequency) according to the set communication speed. This count frequency may be proportional to the communication speed. Each time the bandwidth control unit for each line 124-1 performs counting at the calculated count frequency, it requests the data division unit 122 for the data portion to which the order information is added.
When the data dividing unit 122 receives a request from the line-specific bandwidth control unit 124-1, the data dividing unit 122 sends one data portion to which the order information is added to the line-specific bandwidth control unit 124-1.

  Similarly, the bandwidth control units 124-2 to 124-4 for each line perform counting at a frequency corresponding to the communication speed set for the wireless line # 2 to the wireless line # 4, respectively. Each time the bandwidth control units 124-2 to 124-4 for each line perform counting, the data dividing unit 122 acquires one data portion to which the order information is added.

In other words, the line-specific bandwidth control units 124-1 to 124-4 acquire the data portions according to the communication speeds set for the wireless lines # 1 to # 4, respectively, thereby obtaining the wireless lines # 1 to # 1. Depending on the communication speed set for the wireless line # 4, one of the wireless lines # 1 to # 4 is associated with each of the data portions # 1 to #N.
Further, the band-specific bandwidth control units 124-1 to 124-4 output the acquired data portions to which the order information is added to the packet generation units 126-1 to 126-4, respectively.

  When the packet generators 126-1 to 126-4 receive the data part to which the order information is added from the bandwidth control units 124-1 to 124-4 for each line, the packet generators 126-1 to 126-4 add a header or the like to the data, To generate a packet. Specifically, as illustrated in FIG. 6C, the packet generation unit 126 generates a packet by adding a header and error detection information to the data portion to which the order information is added.

The header includes a destination address, which will be described later, and header information. The destination address is generally data indicating a wireless line identifier. The header information may include the above-described SA, VID, and type information. SA and VID may be the same as or different from those included in the header (FIG. 6A) included in the user data. Further, the error detection information may be the FCS described above.
Here, the packet generation units 126-1 to 126-4 refer to the destination address correspondence table storage unit 110, and correspond to the radio lines associated with the data portions to which the respective order information is added. The destination address to be added is added.

  FIG. 7 is a diagram illustrating a destination address correspondence table stored in the destination address correspondence table storage unit 110. As illustrated in FIG. 7, the destination address # 1 is associated with the wireless line # 1. The destination address # 2 is associated with the wireless line # 2. The destination address # 3 is associated with the wireless line # 3. The destination address # 4 is associated with the wireless line # 4.

  For example, the packet generator 126-1 refers to the destination address correspondence table, and adds the destination address # 1 associated with the radio line # 1 to the data portion when packetizing the received data portion. Similarly, the packet generator 126-2 adds the destination address # 2 associated with the wireless line # 2 to the received data portion. The packet generator 126-3 adds the destination address # 3 associated with the wireless line # 3 to the received data portion. The packet generator 126-4 adds the destination address # 4 associated with the wireless line # 4 to the received data portion.

  The packet generators 126-1 to 126-4 output the generated packets to the packet transmitter 128. The packet transmission unit 128 transmits the received packet to the line distribution circuit 140.

Here, the processing of the line-specific bandwidth control unit 124 and the packet generation unit 126 will be described using a specific example with reference to FIGS. FIG. 8 is a diagram illustrating an example of a time chart for explaining the processing of the line-specific bandwidth control unit 124. FIG. 9 is a diagram illustrating a packet generated in the example of FIG.
For example, it is assumed that the user data is divided into eight data parts # 1 to # 8 by the data dividing unit 122. At this time, the data dividing unit 122 adds the order information # 1 to # 8 to the data portions # 1 to # 8, respectively.

  Further, for example, it is assumed that the line-specific band control unit 124-1 sets the communication speed of the wireless line # 1 to 400 Mbps. Further, it is assumed that the bandwidth control unit 124-2 for each line sets the communication speed of the wireless line # 2 to 200 Mbps. Further, it is assumed that the bandwidth control unit 124-3 for each line sets the communication speed of the wireless line # 3 to 100 Mbps. Furthermore, it is assumed that the bandwidth control unit 124-4 for each line sets the communication speed of the wireless line # 4 to 100 Mbps. That is, the communication speed of the wireless line # 1 is four times as high as the communication speed of the wireless line # 3 and the wireless line # 4. Further, the communication speed of the wireless line # 1 is twice that of the wireless line # 2.

  In this case, as shown in FIG. 8, if it is assumed that the bandwidth control unit 124-1 for each line counts 4 times (time t 1, time t 3, time t 6, time t 8) during a certain period T 1, The unit 124-2 counts twice (time t2, time t7), and the line-specific bandwidth control unit 124-3 counts once (time t4). The bandwidth control unit 124-4 for each line counts once (time t5). Note that t4 and t5 may be the same time.

  The bandwidth control unit for each line 124-1 acquires the data part # 1 to which the order information # 1 is added from the data division unit 122 and outputs it to the packet generation unit 126-1 when counting at t 1. . As illustrated in FIG. 9, the packet generation unit 126-1 adds the destination address # 1 corresponding to the wireless line # 1, header information, and error detection information to the data portion # 1 to which the order information # 1 is added. Is added to generate packet # 1 related to data portion # 1.

  The line-specific bandwidth control unit 124-2 acquires the data part # 2 to which the order information # 2 is added from the data dividing unit 122 and outputs it to the packet generation unit 126-2 at the time of counting at t2. . As illustrated in FIG. 9, the packet generation unit 126-2 adds the destination address # 2 corresponding to the wireless line # 2, header information, and error detection information to the data portion # 2 to which the order information # 2 is added. Is added to generate packet # 2 related to data portion # 2.

  The line-specific bandwidth control unit 124-1 obtains the data part # 3 to which the order information # 3 is added from the data division unit 122 and outputs it to the packet generation unit 126-1 when counting at t 3. . As illustrated in FIG. 9, the packet generation unit 126-1 adds the destination address # 1 corresponding to the wireless line # 1, header information, and error detection information to the data portion # 3 to which the order information # 3 is added. Is added to generate packet # 3 related to data portion # 3.

  The bandwidth control unit 124-3 for each line acquires the data part # 4 to which the order information # 4 is added from the data dividing unit 122 and outputs it to the packet generation unit 126-3 when counting at t4. . As illustrated in FIG. 9, the packet generator 126-3 adds the destination address # 3 corresponding to the radio line # 3, the header information, and error detection information to the data portion # 4 to which the order information # 4 is added. Is added to generate packet # 4 related to data portion # 4.

  The line-specific bandwidth control unit 124-4 acquires the data part # 5 to which the order information # 5 is added from the data dividing unit 122 and outputs it to the packet generation unit 126-4 when counting at t5. . As illustrated in FIG. 9, the packet generation unit 126-4 adds the destination address # 4 corresponding to the wireless line # 4, the header information, and error detection information to the data portion # 5 to which the order information # 5 is added. Is added to generate packet # 5 related to data portion # 5.

  The line-specific bandwidth control unit 124-1 acquires the data part # 6 to which the order information # 6 is added from the data division unit 122 and outputs it to the packet generation unit 126-1 when counting at t 6. . As illustrated in FIG. 9, the packet generation unit 126-1 adds the destination address # 1 corresponding to the wireless line # 1, header information, and error detection information to the data portion # 6 to which the order information # 6 is added. Is added to generate packet # 6 related to data portion # 6.

  The line-specific bandwidth control unit 124-2 acquires the data portion # 7 to which the order information # 7 is added from the data dividing unit 122 and outputs it to the packet generation unit 126-2 at the time of counting at t7. . As illustrated in FIG. 9, the packet generation unit 126-2 adds the destination address # 2 corresponding to the wireless line # 2, header information, and error detection information to the data portion # 7 to which the order information # 7 is added. Is added to generate packet # 7 related to data portion # 7.

  The line-specific bandwidth control unit 124-1 obtains the data part # 8 to which the order information # 8 is added from the data division unit 122 and outputs it to the packet generation unit 126-1 when counting at t 8. . As illustrated in FIG. 9, the packet generation unit 126-1 adds the destination address # 1 corresponding to the wireless line # 1, header information, and error detection information to the data portion # 8 to which the order information # 8 is added. To generate packet # 8 related to data portion # 8.

  The line distribution circuit 140 (FIG. 3) distributes the packet from the dividing circuit 120 to any one of the wireless lines # 1 to # 4 based on the destination address included in the packet. Specifically, referring to the destination address included in the packet from the dividing circuit 120 and the destination address correspondence table illustrated in FIG. 7, the wireless transmission / reception circuits 150-1 to 150-4 corresponding to the destination address are referred to. On the other hand, the packet may be transmitted.

  For example, when the destination address included in the packet is the destination address # 1, the line distribution circuit 140 refers to the destination address correspondence table and determines that the destination address # 1 corresponds to the wireless line # 1. Detect. Therefore, line distribution circuit 140 transmits the packet to wireless transmission / reception circuit 150-1 corresponding to wireless line # 1.

  Further, when the destination address included in the packet is destination address # 2, the line distribution circuit 140 refers to the destination address correspondence table and confirms that the destination address # 2 corresponds to the wireless line # 2. Detect. Therefore, the line distribution circuit 140 transmits the packet to the wireless transmission / reception circuit 150-2 corresponding to the wireless line # 2.

  Also, when the destination address included in the packet is destination address # 3, line distribution circuit 140 refers to the destination address correspondence table and confirms that destination address # 3 corresponds to wireless line # 3. Detect. Therefore, the line distribution circuit 140 transmits the packet to the wireless transmission / reception circuit 150-3 corresponding to the wireless line # 3.

  In addition, when the destination address included in the packet is destination address # 4, line distribution circuit 140 refers to destination address correspondence table and determines that destination address # 4 corresponds to wireless line # 4. Detect. Therefore, the line distribution circuit 140 transmits the packet to the wireless transmission / reception circuit 150-4.

  When the ports connected to the radio transmission / reception circuits 150-1 to 150-4 in the line distribution circuit 140 are associated with the destination addresses # 1 to # 4, respectively, the line distribution circuit 140 is used. May not refer to the destination address correspondence table. That is, in this case, when the line distribution circuit 140 detects a destination address (for example, destination address # 1) included in the packet, the wireless transmission / reception circuit connected to the port corresponding to the destination address (for example, destination address # 1) The packet is distributed to 150 (for example, wireless transmission / reception circuit 150-1).

  As described above, since the destination addresses # 1 to # 4 corresponding to the wireless lines # 1 to # 4 are included in the packet, the line distribution circuit 140 refers to the destination address and corresponds to the destination address. The packet can be sent to the attached port. Therefore, using a general-purpose L2 switch as the line distribution circuit 140, packet distribution to a plurality of wireless lines can be realized.

Further description will be made with the example shown in FIGS.
When receiving the packet # 1 illustrated in FIG. 9, the line distribution circuit 140 detects that the destination address is the destination address # 1. Therefore, the line distribution circuit 140 transmits packet # 1 to the wireless transmission / reception circuit 150-1.
Next, when receiving the packet # 2 illustrated in FIG. 9, the line distribution circuit 140 detects that the destination address is the destination address # 2. Therefore, the line distribution circuit 140 transmits the packet # 2 to the wireless transmission / reception circuit 150-2.

Next, when receiving the packet # 3 illustrated in FIG. 9, the line distribution circuit 140 detects that the destination address is the destination address # 1. Therefore, the line distribution circuit 140 transmits packet # 3 to the wireless transmission / reception circuit 150-1.
Next, when receiving the packet # 4 illustrated in FIG. 9, the line distribution circuit 140 detects that the destination address is the destination address # 3. Therefore, the line distribution circuit 140 transmits packet # 4 to the wireless transmission / reception circuit 150-3.

Next, when receiving the packet # 5 illustrated in FIG. 9, the line distribution circuit 140 detects that the destination address is the destination address # 4. Therefore, the line distribution circuit 140 transmits packet # 5 to the wireless transmission / reception circuit 150-4.
Next, when receiving the packet # 6 illustrated in FIG. 9, the line distribution circuit 140 detects that the destination address is the destination address # 1. Therefore, the line distribution circuit 140 transmits packet # 6 to the wireless transmission / reception circuit 150-1.

Next, when receiving the packet # 7 illustrated in FIG. 9, the line distribution circuit 140 detects that the destination address is the destination address # 2. Therefore, the line distribution circuit 140 transmits packet # 7 to the wireless transmission / reception circuit 150-2.
Next, when receiving the packet # 8 illustrated in FIG. 9, the line distribution circuit 140 detects that the destination address is the destination address # 1. Therefore, the line distribution circuit 140 transmits packet # 8 to the wireless transmission / reception circuit 150-1.

  The radio transmission / reception circuits 150-1 to 150-4 perform modulation processing on the packets (digital signals) distributed from the line distribution circuit 140 by the set modulation method, perform processing such as amplification, Radio waves are transmitted to the receiving side (wireless communication apparatus B100B) via the wireless lines # 1 to # 4. That is, the wireless transmission / reception circuit 150-1 transmits a packet including the destination address # 1 (packets # 1, # 3, # 6, and # 8 in the example of FIG. 9) via the wireless line # 1 ( To the wireless communication device B100B).

  Similarly, the radio transmission / reception circuit 150-2 receives a packet including the destination address # 2 (packets # 2 and # 7 in the example of FIG. 9) via the radio line # 2 (radio communication apparatus B100B). Send to. Further, the wireless transmission / reception circuit 150-3 transmits a packet including the destination address # 3 (packet # 4 in the example of FIG. 9) to the reception side (wireless communication apparatus B100B) via the wireless line # 3. To do. Also, the wireless transmission / reception circuit 150-4 transmits a packet including the destination address # 4 (packet # 5 in the example of FIG. 9) to the reception side (wireless communication apparatus B100B) via the wireless line # 4. To do.

  As described above, in Embodiment 1, radio communication apparatus 100 performs bandwidth control for each of a plurality of radio channels to set the communication speed, so that many packets flow through the radio channel with a high communication speed. As a result, a small number of packets flow through a wireless line having a low communication speed. Therefore, it is possible to efficiently divide and distribute data according to the bands of a plurality of wireless lines.

  Furthermore, in the first embodiment, even if the modulation scheme is changed by the adaptive modulation processing performed by the radio transmission / reception circuits 150-1 to 150-4, the bandwidth control units 124-1 to 124 for each line are changed. -4 performs band control reflecting the radio band at that time. Therefore, even when adaptive modulation processing is performed, it is possible to efficiently divide and distribute data according to the bands of a plurality of wireless lines.

  Furthermore, in Embodiment 1, radio communication apparatus 100 divides data into a plurality of data portions, and adds a destination address (identifier) corresponding to the radio line to the data portions. As a result, as described above, it is possible to distribute the data portion more efficiently in the line distribution circuit 140.

  Further, in the first embodiment, the band-specific bandwidth control units 124-1 to 124-4 independently control the bandwidth for the wireless lines # 1 to # 4 and set the communication speed for each wireless line. ing. Then, the bandwidth control units 124-1 to 124-4 for each line obtain the number of data portions # 1 to #N corresponding to the set communication speed, respectively. As a result, the divided data can be distributed to each wireless line in accordance with the communication speed set by performing bandwidth control for each of the plurality of wireless lines.

  Also, in the first embodiment, line-specific bandwidth control units 124-1 to 124-4 and packet generation units 126-1 to 126-4 are provided for each of the radio lines # 1 to # 4. As a result, the data portion can be processed for each of a plurality of wireless lines, and therefore the processing can be simplified.

  Further, in the first embodiment, the sizes of the data portions # 1 to #N are the same. This simplifies the processing when the line-specific bandwidth control units 124-1 to 124-4 acquire the data portion according to the communication speed. That is, if the sizes of the data portions # 1 to #N are different, the line-specific bandwidth control units 124-1 to 124-4 each time the data portions # 1 to #N are acquired, The sizes of # 1 to #N must be detected, leading to an increase in processing time.

[Receiver]
Next, although the operation content of the component of radio | wireless communication apparatus B100B which is a receiving side is demonstrated, the operation content demonstrated below may be made | formed by the transmission side.
Radio transmission / reception circuits 150-1 to 150-4 receive radio waves including packets via radio lines # 1 to # 4, respectively. The radio transmission / reception circuits 150-1 to 150-4 perform processing such as amplification on the received radio wave, and perform demodulation processing using a set demodulation method. Further, the radio transmission / reception circuits 150-1 to 150-4 transmit the packet (digital signal) obtained by the demodulation process to the line distribution circuit 140.
The line distribution circuit 140 transmits the packets received from the wireless transmission / reception circuits 150-1 to 150-4 to the assembly circuit 160.

  FIG. 10 is a diagram illustrating information processed by the assembly circuit 160. Hereinafter, the assembly circuit 160 will be described with reference to FIGS. 5 and 10. The packet receiving unit 162 receives the packet illustrated in FIG. 10A from the line distribution circuit 140. Further, the packet receiving unit 162 refers to the destination address included in the received packet and the destination address correspondence table illustrated in FIG. 7 and stores it in the line-specific memories 164-1 to 164-4 corresponding to the destination address. On the other hand, a packet is output.

  For example, when the destination address included in the packet is the destination address # 1, the packet receiving unit 162 refers to the destination address correspondence table and detects that the destination address # 1 corresponds to the wireless line # 1. To do. Therefore, the packet receiving unit 162 outputs the packet to the line-specific memory 164-1 corresponding to the wireless line # 1.

  Further, when the destination address included in the packet is the destination address # 2, the packet receiving unit 162 refers to the destination address correspondence table and detects that the destination address # 2 corresponds to the wireless line # 2. To do. Therefore, the packet receiving unit 162 outputs the packet to the line-specific memory 164-2 corresponding to the wireless line # 2.

  Further, when the destination address included in the packet is the destination address # 3, the packet receiving unit 162 refers to the destination address correspondence table and detects that the destination address # 3 corresponds to the wireless line # 3. To do. Therefore, the packet receiving unit 162 outputs the packet to the line-specific memory 164-3 corresponding to the wireless line # 3.

  Further, when the destination address included in the packet is the destination address # 4, the packet receiving unit 162 refers to the destination address correspondence table and detects that the destination address # 4 corresponds to the wireless line # 4. To do. Therefore, the packet receiving unit 162 outputs the packet to the line-specific memory 164-4 corresponding to the wireless line # 4.

  The line-specific memories 164-1 to 164-4 are memories such as buffers. The line-specific memories 164-1 to 164-4 receive and store the packet, and output the packet to the packet assembling unit 166 in response to a request from the packet assembling unit 166. The line-specific memories 164-1 to 164-4 may output packets to the packet assembling unit 166 simultaneously when all the packets related to one user data are stored.

  The line-specific memory 164-1 stores a packet including the destination address # 1. For example, in the example of FIG. 9, the line-specific memory 164-1 stores packets # 1, # 3, # 6, and # 8. The line-specific memory 164-2 stores a packet including the destination address # 2. For example, in the example of FIG. 9, the line-specific memory 164-2 stores packets # 2 and # 7. The line-specific memory 164-3 stores a packet including the destination address # 3. For example, in the example of FIG. 9, the line-specific memory 164-3 stores packet # 4. The line-specific memory 164-4 stores a packet including the destination address # 4. For example, in the example of FIG. 9, the line-specific memory 164-4 stores packet # 5.

  When receiving a packet from the line-specific memory 164, the packet assembling unit 166 assembles a data portion using the order information included in the packet, and generates (restores) user data. Specifically, first, the packet assembling unit 166 removes the header and the error detection information as illustrated in FIG. The header and error detection information may be removed by the line-specific memory 164.

  Then, the packet assembling unit 166 assembles the data parts # 1 to #N in the order of the order information # 1 to #N added to the data parts # 1 to #N. For example, the packet assembling unit 166 arranges each data portion so that the data portion # 1 to which the order information # 1 is added is arranged first, and the data portion # 2 to which the order information # 2 is added is arranged second. Line up and join them. Thereby, user data as illustrated in FIG. 10C is generated.

  Further, the packet assembling unit 166 outputs the generated user data to the data transmitting unit 168. The data transmission unit 168 transmits user data to the data line 60 (60B).

  Here, as described above, it is assumed that the line-by-line memories 164-1 to 164-4 are configured to remove the header and error detection information. At this time, since the line-specific memories 164-1 to 164-4 are provided for each wireless line, the data portion (packet) transmitted via the wireless line # 1 to the wireless line # 4 is stored in the line-specific memory. In each of 164-1 to 164-4, the data is stored in the order of the data portion in the original user data. FIG. 11 is a diagram illustrating the order of data portions stored in the line-specific memories 164-1 to 164-4 in the example of FIG.

  For example, as illustrated in FIG. 11, in the line-by-line memory 164-1, the data portion # 1 having the first order, the data portion # 3 having the third order, and the data having the sixth order. The part # 6 and the data part # 8 having the eighth order are stored in this order. Similarly, in the line-by-line memory 164-2, the data portion # 2 having the second order and the data portion # 7 having the seventh order are stored in this order. Similarly, the data portion # 4 having the fourth order is stored in the line-specific memory 164-3. In the line-by-line memory 164-4, the data portion # 5 having the fifth order is stored.

  At this time, the packet assembling unit 166 detects the order information added to the data part stored at the head for each of the line-specific memories 164-1 to 164-4. Then, the first data part stored in each of the line-specific memories 164-1 to 164-4 is extracted in the earliest order.

  As illustrated in FIG. 11, what is stored at the head of the line-by-line memory 164-1 is a data portion # 1 to which order information # 1 indicating the first is added. The data portion # 2 to which the order information # 2 indicating the second is added is stored at the head of the line-specific memory 164-2. Stored at the head of the line-by-line memory 164-3 is a data portion # 4 to which order information # 4 indicating the fourth is added. Stored at the head of the line-by-line memory 164-4 is a data portion # 5 to which order information # 5 indicating the fifth is added.

  Therefore, the packet assembling unit 166 first extracts the data portion # 1 to which the order information # 1 indicating the first is added from the line-specific memory 164-1. At this time, the data portion # 3 to which the order information # 3 indicating the third is added comes to the head of the line-specific memory 164-1.

  Next, the packet assembling unit 166 detects the order information added to the data portion stored at the head for each of the line-specific memories 164-1 to 164-4. At this time, the earliest number is the second (data portion # 2 stored in line-specific memory 164-2). Therefore, the packet assembling unit 166 takes out the data portion # 2 to which the second order information # 2 is added from the line-specific memory 164-2. At this time, the data portion # 7 to which the order information # 7 indicating the seventh is added comes to the top of the line-specific memory 164-2. Further, the packet assembling unit 166 combines the extracted data portion # 2 after the already extracted data portion # 1.

  If the data portion # 2 to which the second order information # 2 indicating the next order is not stored is stored in the line-specific memory 164-2 due to the transmission delay of the wireless line # 2, the packet The assembling unit 166 may interrupt the process until the data part # 2 to which the order information # 2 is added is stored.

  Next, the packet assembling unit 166 detects the order information added to the data portion stored at the head for each of the line-specific memories 164-1 to 164-4. At this time, the earliest number is the third (data portion # 3 stored in line-specific memory 164-1). Therefore, the packet assembling unit 166 takes out the data part # 3 to which the order information # 3 indicating the third is added from the line-specific memory 164-1. At this time, the data portion # 6 to which the order information # 6 indicating the sixth is added comes to the head of the line-specific memory 164-1. Further, the packet assembling unit 166 combines the extracted data portion # 3 after the already extracted data portion # 2.

  Next, the packet assembling unit 166 detects the order information added to the data portion stored at the head for each of the line-specific memories 164-1 to 164-4. At this time, the earliest number is the fourth (data portion # 4 stored in the line-specific memory 164-3). Therefore, the packet assembling unit 166 takes out the data part # 4 to which the order information # 4 indicating the fourth is added from the line-specific memory 164-3. At this time, there is no data stored in the line-specific memory 164-3. Further, the packet assembling unit 166 combines the extracted data portion # 4 after the already extracted data portion # 3.

  Next, the packet assembling unit 166 detects the order information added to the data portion stored at the head for each of the line-specific memories 164-1 to 164-4. At this time, the earliest number is the fifth (data portion # 5 stored in line-specific memory 164-4). Accordingly, the packet assembling unit 166 takes out the data part # 5 to which the order information # 5 indicating the fifth is added from the line-specific memory 164-4. At this time, there is no data stored in the line-specific memory 164-4. Further, the packet assembling unit 166 combines the extracted data portion # 5 after the already extracted data portion # 4.

  Next, the packet assembling unit 166 detects the order information added to the data portion stored at the head for each of the line-specific memories 164-1 to 164-4. At this time, the earliest number is the sixth (data portion # 6 stored in line-specific memory 164-1). Therefore, the packet assembling unit 166 takes out the data part # 6 to which the order information # 6 indicating the sixth is added from the line-specific memory 164-1. At this time, the data portion # 8 to which the order information # 8 indicating the eighth is added comes to the head of the line-specific memory 164-1. Further, the packet assembling unit 166 combines the extracted data portion # 6 behind the previously extracted data portion # 5.

  Next, the packet assembling unit 166 detects the order information added to the data portion stored at the head for each of the line-specific memories 164-1 to 164-4. At this time, the earliest number is the seventh (data portion # 7 stored in line-specific memory 164-2). Therefore, the packet assembling unit 166 takes out the data part # 7 to which the order information # 7 indicating the seventh is added from the line-specific memory 164-2. At this time, there is no data stored in the line-specific memory 164-2. Further, the packet assembling unit 166 combines the extracted data portion # 7 after the already extracted data portion # 6.

  Next, the packet assembling unit 166 detects the order information added to the data portion stored at the head for each of the line-specific memories 164-1 to 164-4. At this time, since the data is stored only in the line-by-line memory 164-1, the packet assembling unit 166 stores the data portion # 8 to which the order information # 8 indicating the eighth is added from the line-by-line memory 164-1. Take out. At this time, there is no data stored in the line-specific memory 164-1. Further, the packet assembling unit 166 combines the extracted data portion # 8 after the already extracted data portion # 7.

  In this way, the packet assembling unit 166 can restore the original user data. Further, since the line-by-line memories 164-1 to 164-4 are provided for each wireless line, even if the arrival times of data transmitted through the wireless lines are different, the packet assembling unit 166 Can easily assemble user data. That is, if a memory (buffer) is not provided for each line, the order of data portions (packets) in the buffer varies. Then, as described above, the packet assembling unit 166 needs to change the order after extracting all the data portions (packets), which makes the processing complicated and increases the processing time.

[Wireless communication method]
The operation flow (wireless communication method) of the wireless communication apparatus 100 will be described with reference to FIGS. 12 and 13.
FIG. 12 is a flowchart showing the operation of the wireless communication device 100 on the transmission side (wireless communication device A100A).
In the flowchart shown in FIG. 12, the order of processing (steps) can be changed as appropriate. One or more of the plurality of processes (steps) may be omitted. The same applies to the flowchart shown in FIG.

  The wireless communication device A100A divides user data into a plurality of data portions (S102). Specifically, as described above, the data dividing unit 122 of the dividing circuit 120 divides user data into data portions # 1 to #N having the same size. Furthermore, as described above, the data dividing unit 122 adds the order information # 1 to #N indicating the order of the data parts # 1 to #N.

  Next, the wireless communication device A100A performs band control for each of the plurality of wireless lines (S104). Specifically, as described above, the band-specific band control units 124-1 to 124-4 of the dividing circuit 120 perform band control for the radio lines # 1 to # 4, respectively.

  Next, the wireless communication device A100A associates the data portion with each band-controlled wireless line (S106). Specifically, as described above, the band-specific bandwidth control units 124-1 to 124-4 of the dividing circuit 120 count at frequencies according to the communication speeds set for the wireless lines # 1 to # 4, respectively. Each time, the data part to which the order information is added is acquired from the data dividing unit 122. As a result, the band-specific bandwidth control units 124-1 to 124-4 can select any of the wireless lines # 1 to # 4 for the data portion according to the communication speed set for the wireless lines # 1 to # 4. Are associated.

  Next, the wireless communication apparatus A100A adds destination addresses # 1 to # 4 corresponding to the wireless lines # 1 to # 4 to the data part to generate a packet (S108). Specifically, as described above, the packet generation units 126-1 to 126-4 of the dividing circuit 120 refer to the destination address correspondence table, and each of the received data portions receives the destination address #. 1 to # 4 are added.

  Next, the wireless communication device A 100A distributes the packet to one of a plurality of wireless lines using the destination address (S110). Specifically, as described above, the line distribution circuit 140 distributes the packet to the ports corresponding to the destination addresses # 1 to # 4 included in the packet, for example, thereby allowing the destination addresses # 1 to # 1. Packets including # 4 are transmitted to the radio transmission / reception circuits 150-1 to 150-4, respectively.

  Next, the wireless communication device A100A transmits the packet via the assigned wireless line (S112). Specifically, as described above, the radio transmission / reception circuits 150-1 to 150-4 perform modulation processing on the packets distributed from the line distribution circuit 140, and respectively pass through the wireless lines # 1 to # 4. The radio wave including the packet is transmitted to the receiving side (wireless communication apparatus B100B).

FIG. 13 is a flowchart showing the operation of the radio communication device 100 (radio communication device B 100B) on the receiving side.
First, the wireless communication device B 100B receives a packet via a plurality of wireless lines (S202). Specifically, as described above, the radio transmission / reception circuits 150-1 to 150-4 receive radio waves including packets via the radio lines # 1 to # 4, respectively, and perform demodulation processing. To obtain a packet.

  Next, the wireless communication device B 100B stores the packet separately for each wireless line (S204). Specifically, as described above, the line-by-line memories 164-1 to 164-4 of the assembly circuit 160 store packets including destination addresses # 1 to # 4, respectively.

  Next, the wireless communication apparatus B 100B restores user data using the order information included in the packet (S206). Specifically, as described above, the packet assembly unit 166 of the assembly circuit 160 performs the data portions # 1 to #N in the order of the order information # 1 to #N added to the data portions # 1 to #N. The user data is restored by assembling.

  Next, the wireless communication device B 100B transmits user data (S208). Specifically, as described above, the data transmission unit 168 transmits the restored user data to the data line 60 (60B).

[Modification]
Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.
In the first embodiment described above, the number of the plurality of wireless lines is four (wireless line # 1 to wireless line # 4). However, the number of wireless lines may be any number as long as it is plural.

  Further, the wireless communication device A 100A and the wireless communication device B 100B may include only one of the division circuit 120 and the assembly circuit 160. That is, for example, when data is transmitted from the wireless communication device A 100A to the wireless communication device B 100B, but no data is transmitted from the wireless communication device B 100B to the wireless communication device A 100A, the wireless communication device A 100A includes a dividing circuit. Although 120 is included, the assembly circuit 160 may not be included. The wireless communication device B100B includes the assembly circuit 160 but may not include the division circuit 120.

  In the first embodiment, the destination address corresponding to the radio channel is added to the data portion. However, the destination address may not be added to the data portion, and any identifier that identifies the radio channel can be used. Any format may be used. However, since the data portion can be processed as a packet by adding the destination address, as described above, the line distribution circuit can be configured using the existing L2 switch. An identifier corresponding to a wireless line may be added as SA (source address). In this case, the line distribution circuit is configured to distribute the data portion based on SA.

  In the first embodiment, the bandwidth control unit 124 for each line extracts the data part every time it counts at a frequency according to the set communication speed of the wireless line. Not limited to. For example, the line-specific bandwidth control unit 124 may request the number of data portions corresponding to the communication speed ratio set for each of the wireless lines # 1 to # 4.

  In the above-described embodiments, the present invention has been described as a hardware configuration, but the present invention is not limited to this. The present invention can also realize processing of each circuit in the wireless communication apparatus by causing a CPU (Central Processing Unit) to execute a computer program.

  In the above example, the program can be stored and supplied to a computer using various types of non-transitory computer readable media. Non-transitory computer readable media include various types of tangible storage media. Examples of non-transitory computer-readable media include magnetic recording media (for example, flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (for example, magneto-optical disks), CD-ROMs (Read Only Memory), CD-Rs, CD-R / W, semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (Random Access Memory)) are included. The program may also be supplied to the computer by various types of transitory computer readable media. Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves. The temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.

  Although the present invention has been described with reference to the exemplary embodiments, the present invention is not limited to the above. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the invention.

  This application claims the priority on the basis of Japanese application Japanese Patent Application No. 2013-091274 for which it applied on April 24, 2013, and takes in those the indications of all here.

DESCRIPTION OF SYMBOLS 1 Wireless communication apparatus 50 Wireless communication system 60 Data line 100 Wireless communication apparatus 110 Destination address correspondence table memory | storage part 120 Dividing circuit 122 Data dividing part 124 Band control part 126 according to line Packet generation part 128 Packet transmission part 140 Line distribution circuit 150 Wireless Transmission / reception circuit 160 Assembly circuit 162 Packet reception unit 166 Packet assembly unit 168 Data transmission unit

Claims (16)

A dividing means for dividing the data into a plurality of data parts;
Bandwidth control means for performing bandwidth control for each of a plurality of wireless lines and setting a communication speed;
An adding unit for adding an identifier corresponding to each of the plurality of radio channels to the plurality of data portions according to a communication speed of each of the plurality of radio channels set by band control of the band control unit;
A distribution unit that distributes each of the plurality of data portions to one of the plurality of wireless lines based on an identifier added to the plurality of data portions;
A wireless communication apparatus comprising: a transmission unit configured to transmit the plurality of data parts to another wireless communication apparatus via the plurality of wireless lines to which the plurality of data parts are distributed. The adding means adds a destination address corresponding to any of the plurality of wireless lines to the plurality of data portions, packetizes each of the plurality of data portions, and generates a plurality of packets,
The wireless communication apparatus according to claim 1, wherein the distribution unit distributes each of the plurality of packets to one of the plurality of wireless channels based on the destination address included in each of the plurality of packets. The band control means associates the plurality of radio lines with respect to the plurality of data portions according to a communication speed set by the band control for each of the plurality of radio lines,
The wireless communication apparatus according to claim 1, wherein the adding unit adds an identifier of the associated wireless line to each of the plurality of data portions. A plurality of the bandwidth control means are provided corresponding to the plurality of wireless lines,
Each of the plurality of bandwidth control means accepts the data portion based on the communication speed set for each of the corresponding plurality of wireless lines,
The radio communication apparatus according to claim 3, wherein the adding unit adds an identifier of a radio channel corresponding to the band control unit to the data portion received by a plurality of band control units. A plurality of the adding means are provided corresponding to the plurality of wireless lines,
Each of the plurality of bandwidth control means outputs the data portion to each of the plurality of additional means associated with a wireless line associated with itself,
The wireless communication apparatus according to claim 4, wherein each of the plurality of adding units adds an identifier corresponding to a wireless line associated with the adding unit to the data portion received from the band control unit. The dividing means divides the data into a plurality of data portions having the same size,
The wireless communication apparatus according to any one of claims 3 to 5, wherein the bandwidth control unit associates the wireless line with the faster communication speed set with more data portions. Receiving means for receiving the plurality of data portions from another wireless communication device via the plurality of wireless lines;
The wireless communication apparatus according to claim 1, further comprising an assembling unit that assembles the plurality of data portions to generate original data. A plurality of memories provided corresponding to each of the plurality of wireless lines and storing each of the plurality of data portions received by the receiving unit via each of the plurality of wireless lines;
The wireless communication apparatus according to claim 7, wherein the assembling unit extracts original data from the plurality of memories in the order of original data, and generates original data. Receiving means for receiving a plurality of data portions obtained by dividing the data from other wireless communication devices via a plurality of wireless lines;
A plurality of memories provided corresponding to each of the plurality of wireless lines and storing each of the plurality of data portions received by the receiving unit via the plurality of wireless lines;
An assembling unit that generates original data by extracting and assembling data portions from the plurality of memories in the order of the original data. A first wireless communication device for transmitting data;
A second wireless communication device for receiving the data,
The first wireless communication device is:
A dividing means for dividing the data into a plurality of data parts;
Bandwidth control means for performing bandwidth control for each of a plurality of wireless lines and setting a communication speed;
An adding unit for adding an identifier corresponding to each of the plurality of radio channels to the plurality of data portions according to a communication speed of each of the plurality of radio channels set by band control of the band control unit;
A distribution unit that distributes each of the plurality of data portions to one of the plurality of wireless lines based on an identifier added to the plurality of data portions;
Transmission means for transmitting the plurality of data portions to the second wireless communication device via the plurality of wireless lines to which the plurality of data portions are distributed,
The second wireless communication device is:
Receiving means for receiving the plurality of data portions from the first wireless communication device via the plurality of wireless lines;
Assembling means for assembling the plurality of data portions to generate original data. The adding means adds a destination address corresponding to any of the plurality of wireless lines to the plurality of data portions, packetizes each of the plurality of data portions, and generates a plurality of packets,
The wireless communication system according to claim 10, wherein the distribution unit distributes each of the plurality of packets to one of the plurality of wireless lines based on the destination address included in each of the plurality of packets. The band control means associates the plurality of radio lines with respect to the plurality of data portions according to a communication speed set by the band control for each of the plurality of radio lines,
The wireless communication system according to claim 10 or 11, wherein the adding means adds an identifier of the associated wireless line to each of the plurality of data portions. A plurality of the bandwidth control means are provided corresponding to the plurality of wireless lines,
Each of the plurality of bandwidth control means accepts the data portion based on the communication speed set for each of the corresponding plurality of wireless lines,
The wireless communication system according to claim 12, wherein the adding means adds an identifier of a wireless line corresponding to the bandwidth control means to the data portion received by a plurality of bandwidth control means. A plurality of the adding means are provided corresponding to the plurality of wireless lines,
Each of the plurality of bandwidth control means outputs the data portion to each of the plurality of additional means associated with a wireless line associated with itself,
14. The wireless communication system according to claim 13, wherein each of the plurality of adding units adds an identifier corresponding to a radio channel associated with the adding unit to the data portion received from the band control unit. The dividing means divides the data into a plurality of data portions having the same size,
The wireless communication system according to any one of claims 12 to 14, wherein the bandwidth control means associates a wireless line having a higher set communication speed with more data portions. Divide the data into multiple data parts,
Set the communication speed by performing bandwidth control for each of multiple wireless lines,
In accordance with the communication speed of each of the plurality of wireless lines set by the band control, an identifier corresponding to each of the plurality of wireless lines is added to the plurality of data portions,
Each of the plurality of data portions is distributed to any of the plurality of wireless lines based on an identifier added to the plurality of data portions,
A wireless communication method for transmitting the plurality of data portions to another wireless communication device via the plurality of wireless lines to which the plurality of data portions are distributed.

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