WO2014174768A1 - Dispositif de communication sans fil, système de communication sans fil et procédé de communication sans fil - Google Patents

Dispositif de communication sans fil, système de communication sans fil et procédé de communication sans fil Download PDF

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Publication number
WO2014174768A1
WO2014174768A1 PCT/JP2014/001865 JP2014001865W WO2014174768A1 WO 2014174768 A1 WO2014174768 A1 WO 2014174768A1 JP 2014001865 W JP2014001865 W JP 2014001865W WO 2014174768 A1 WO2014174768 A1 WO 2014174768A1
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Prior art keywords
data
wireless
line
wireless communication
lines
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PCT/JP2014/001865
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English (en)
Japanese (ja)
Inventor
中川　浩一
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日本電気株式会社
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Priority to JP2015513511A priority Critical patent/JP6065108B2/ja
Publication of WO2014174768A1 publication Critical patent/WO2014174768A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present invention relates to a wireless communication device, a wireless communication system, and a wireless communication method, and more particularly, to a wireless communication device, a wireless communication system, and a wireless communication method capable of transmitting data via a plurality of wireless lines.
  • 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.
  • 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.
  • MRL Multi-Radio-Linc
  • Patent Document 1 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 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 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 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
  • 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.
  • Distribution means for allocating to any of the plurality of wireless lines, and the plurality of data parts, via the plurality of wireless lines to which the plurality of data parts are distributed, Transmission means for transmitting to the second wireless communication device, wherein the second wireless communication device transmits the plurality of data portions from the first wireless communication device via the plurality of wireless lines. And receiving means for assembling the plurality of data portions to generate original data.
  • the wireless communication method 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.
  • 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.
  • a wireless communication device capable of efficiently distributing data in accordance with a plurality of wireless channel bands.
  • 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
  • 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
  • FIG. 1 is a diagram showing an outline of a wireless communication device 1 according to an embodiment of the present invention.
  • 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 means 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.
  • 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 so as to be able to perform wireless communication via four wireless lines # 1 to # 4.
  • 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.
  • 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.
  • the wireless communication apparatus B100B has 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.
  • 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.
  • the wireless communication device A 100A and the wireless communication device B 100B perform link aggregation for the four wireless lines # 1 to # 4.
  • the wireless communication device A 100A and the wireless communication device B 100B ensure a transmission capacity.
  • 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 apparatus 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 on which the band control has been performed. Then, the wireless communication device A 100A transmits the distributed data portions to the wireless communication device B 100B via the wireless lines # 1 to # 4 to which the multiple data portions are distributed. Further, when receiving a plurality of data portions from the wireless communication device A 100A via the wireless lines # 1 to # 4, the wireless communication device B 100B assembles the plurality of data portions and generates original user data ( Restore. Details will be described later.
  • the wireless communication device A 100A and the wireless communication device B 100B are collectively referred to as the wireless communication device 100.
  • a plurality of components such as the antennas 102A-1 to 102A-4 will be collectively referred to as the antenna 102A when they are described without being distinguished.
  • antennas 102-1 to 102-4 when not distinguishing between the components of the wireless communication device A 100A and the wireless communication device B 100B, they may be collectively referred to as antennas 102-1 to 102-4.
  • it may generically call the antenna 102 grade
  • 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.
  • the dividing circuit 120 and the assembly circuit 160 are connected to ports of the line distribution circuit 140, respectively.
  • 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). Further, the radio transmission / reception circuit 150-1 generates radio band information # 1 indicating the radio band of the radio line # 1. Further, 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.
  • the wireless transmission / reception circuits 150-2 to 150-4 also perform the above-described adaptive modulation processing for the wireless lines # 2 to # 4, as in the case of the wireless transmission / reception circuit 150-1.
  • the wireless transmission / reception circuits 150-2 to 150-4 are wireless band information # 2 to wireless band information # 4 indicating the wireless bands of the wireless lines # 2 to # 4, respectively. Is generated.
  • 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.
  • 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.
  • the radio transmission / reception circuit 150-4 transmits the radio band information # 4 to the band-specific band control unit 124-4 of the dividing circuit 120.
  • FIG. 6 is a diagram illustrating information processed by the dividing circuit 120.
  • the data dividing unit 122 receives user data illustrated in FIG. 6A via the data line 60.
  • the user data includes a header, a payload indicating the contents (content or the like) of the user data, and error detection information.
  • the data dividing unit 122 divides user data into data parts # 1 to #N (N is an integer of 1 or more).
  • 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 sizes of the data portions # 1 to #N may be increased.
  • the data dividing unit 122 refers to the data length indicated in the type information included in the user data header, and divides the user data so that the sizes of the data portions # 1 to #N are equal. Also good. In this case, the sizes of the data portions # 1 to #N may be slightly larger (or smaller) than the fixed length.
  • the data parts # 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.
  • the data dividing unit 122 adds order information # 1 to #N to the divided data portions # 1 to #N, respectively.
  • 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 receiving-side radio communication apparatus 100, as will be described later.
  • the order information may be control information such as overhead (OH).
  • 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 obtained by combining the data parts # 1 to #N and the order information # 1 to #N (data shown in FIG. 6B) is , They are the same size.
  • the line-specific band control units 124-1 to 124-4 perform band control for 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 line-specific band control unit 124-1 sets the communication speed on the radio line # 1 using the radio band information # 1.
  • 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.
  • the band control units 124-2 to 124-4 for each line also include radio band information # 2 to radio band information related to the radio lines # 2 to # 4 from the radio transmission / reception circuits 150-2 to 150-4. Using # 4, the communication speed in the radio lines # 2 to # 4 is set.
  • 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 counting is performed, the data dividing unit 122 performs an example as shown in FIG. One data part to which such order information is added is acquired. Specifically, the bandwidth control unit for each line 124-1 calculates the count frequency (count frequency) according to the set communication speed. This count frequency may be proportional to the communication speed. Also, the bandwidth control unit for each line 124-1 requests the data division unit 122 for the data portion to which the order information is added every time counting is performed with the calculated count frequency. When the data dividing unit 122 receives a request from the line-specific band control unit 124-1, the data dividing unit 122 sends one data part to which the order information is added to the line-specific band control unit 124-1.
  • 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.
  • the data division unit 122 acquires one data portion to which the order information is added.
  • the band-specific bandwidth control units 124-1 to 124-4 acquire the data portion according to the communication speed set for the wireless lines # 1 to # 4, respectively, thereby obtaining the wireless lines # 1 to 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 line-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.
  • the packet generators 126-1 to 126-4 When the packet generators 126-1 to 126-4 receive the data portion to which the order information is added from the line-specific bandwidth controllers 124-1 to 124-4, 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.
  • 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.
  • 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.
  • the packet generator 126-1 refers to the destination address correspondence table, and adds the destination address # 1 associated with the wireless line # 1 to the data portion when packetizing the received data portion.
  • 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 part.
  • 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.
  • 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 parts # 1 to # 8, respectively.
  • 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.
  • the bandwidth control unit 124-1 for each line counts four times (time t1, time t3, time t6, time t8) during a certain period T1
  • the unit 124-2 counts twice (time t2, time t7)
  • 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. .
  • 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 124-3 obtains the data part # 4 to which the order information # 4 is added from the data division unit 122 and outputs it to the packet generation unit 126-3 when counting at t4. .
  • 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 124-1 acquires the data part # 8 to which the order information # 8 is added from the data dividing unit 122 and outputs it to the packet generation unit 126-1 at the time of counting at t8. . As illustrated in FIG. 9, the packet generation unit 126-1 adds the destination address # 1 corresponding to the radio 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 refers to the destination address correspondence table and confirms that the destination address # 2 corresponds to the wireless line # 2. Detect. Therefore, line distribution circuit 140 transmits the packet to radio transmission / reception circuit 150-2 corresponding to radio line # 2.
  • the line distribution circuit 140 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, line distribution circuit 140 transmits packet # 1 to radio 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, line distribution circuit 140 transmits packet # 2 to radio transmission / reception circuit 150-2.
  • the line distribution circuit 140 detects that the destination address is the destination address # 4. Therefore, line distribution circuit 140 transmits packet # 5 to radio transmission / reception circuit 150-4.
  • the line distribution circuit 140 detects that the destination address is the destination address # 1. Therefore, line distribution circuit 140 transmits packet # 6 to radio transmission / reception circuit 150-1.
  • the line distribution circuit 140 detects that the destination address is the destination address # 2. Therefore, line distribution circuit 140 transmits packet # 7 to wireless transmission / reception circuit 150-2.
  • the line distribution circuit 140 detects that the destination address is the destination address # 1. Therefore, line distribution circuit 140 transmits packet # 8 to radio transmission / reception circuit 150-1.
  • band-specific bandwidth control units 124-1 to 124-4 independently control the bandwidth for radio lines # 1 to # 4 and set the communication speed for each radio 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.
  • 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.
  • 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. Accordingly, the packet receiving unit 162 outputs the packet to the line-specific memory 164-2 corresponding to the wireless line # 2.
  • 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).
  • the data part # 1 having the first order, the data part # 3 having the third order, and the data having the sixth order are stored in this order.
  • the data portion # 2 having the second order and the data portion # 7 having the seventh order are stored in this order.
  • the data portion # 4 having the fourth order is stored in the line-specific memory 164-3.
  • the data portion # 5 having the fifth order is stored.
  • what is stored at the top of the line-specific 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.
  • the data portion # 4 to which the order information # 4 indicating the fourth is added is stored at the head of the line-based memory 164-3.
  • the data portion # 5 to which order information # 5 indicating the fifth is added is stored at the head of the line-based memory 164-4.
  • 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. 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 head of the line-by-line memory 164-2. Further, the packet assembling unit 166 combines the extracted data portion # 2 after the already extracted data portion # 1.
  • 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. At this time, the earliest number is the fifth (data portion # 5 stored in line-specific memory 164-4). Therefore, 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.
  • 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. At this time, since the data is stored only in the line-specific 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-specific 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.
  • 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 the 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 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. Further, 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.
  • the wireless communication device A100A performs band control for each of a 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.
  • 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 select one 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.
  • the wireless communication device A100A distributes the packet to one of a plurality of wireless lines using the destination address (S110).
  • the line distribution circuit 140 for example, distributes the packet to the ports corresponding to the destination addresses # 1 to # 4 included in the packet, whereby the destination address # 1 to Packets including # 4 are transmitted to radio transmission / reception circuits 150-1 to 150-4, respectively.
  • 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 parts # 1 to #N in the order of the order information # 1 to #N added to the data parts # 1 to #N. The user data is restored by assembling.
  • 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).
  • 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.
  • the number of the plurality of wireless lines is four (wireless lines # 1 to # 4).
  • the number of wireless lines may be any number as long as it is plural.
  • 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.
  • the destination address corresponding to the radio channel is added to the data portion.
  • 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.
  • 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.
  • 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 device by causing a CPU (Central Processing Unit) to execute a computer program.
  • a CPU Central Processing Unit
  • Non-transitory computer readable media include various types of tangible storage media (tangible storage medium).
  • Examples of non-transitory computer-readable media include magnetic recording media (eg flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (eg magneto-optical discs), CD-ROMs (Read Only Memory), CD-Rs, CD-R / W, semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable ROM), flash ROM, RAM (Random Access Memory)) are included.
  • the program may also be supplied to the computer by various types of temporary 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.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

L'invention concerne un dispositif de communication sans fil, un système de communication sans fil et un procédé de communication sans fil, grâce auxquels des données peuvent être allouées efficacement en fonction de la largeur de bande de multiples lignes sans fil. Un moyen de division (12) divise les données en de multiples parties de données. Un moyen de commande de largeur de bande (14) effectue une commande de largeur de bande et règle la vitesse de communication pour chacune des multiples lignes sans fil. Un moyen d'addition (16) annexe aux multiples parties de données un identificateur correspondant à la ligne sans fil respective, en fonction de la vitesse de communication respective de la ligne sans fil, telle qu'elle est fixée par la commande de largeur de bande effectuée par le moyen de commande de largeur de bande (14). Un moyen d'allocation (18) alloue chacune des multiples parties de données à l'une des multiples lignes sans fil en fonction de l'identificateur annexé aux multiples parties de données. Un moyen d'émission (20) envoie les multiples parties de données à un autre dispositif de communication sans fil par l'intermédiaire des multiples lignes sans fil auxquelles les multiples parties de données ont été allouées.
PCT/JP2014/001865 2013-04-24 2014-03-31 Dispositif de communication sans fil, système de communication sans fil et procédé de communication sans fil WO2014174768A1 (fr)

Priority Applications (1)

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JP2015513511A JP6065108B2 (ja) 2013-04-24 2014-03-31 無線通信装置、無線通信システム及び無線通信方法

Applications Claiming Priority (2)

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JP2013-091274 2013-04-24
JP2013091274 2013-04-24

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JP (1) JP6065108B2 (fr)
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190327643A1 (en) * 2016-12-22 2019-10-24 Nec Corporation Wireless communication device, wireless communication system, and wireless communication method
US10869226B2 (en) 2015-10-23 2020-12-15 Nec Corporation Wireless communication apparatus, wireless communication system and wireless communication method
JP7450560B2 (ja) 2021-01-08 2024-03-15 三菱電機株式会社 リソース決定装置、リソース決定方法及びリソース決定プログラム

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WO2011068587A2 (fr) * 2009-12-03 2011-06-09 Intel Corporation Multiplexage inverse sur interfaces sans fil 802.11
EP2547053A1 (fr) * 2011-07-13 2013-01-16 Alcatel Lucent Distribution d'unités de données dans des interfaces d'un noeud de réseau de communication commuté par paquets

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011068587A2 (fr) * 2009-12-03 2011-06-09 Intel Corporation Multiplexage inverse sur interfaces sans fil 802.11
EP2547053A1 (fr) * 2011-07-13 2013-01-16 Alcatel Lucent Distribution d'unités de données dans des interfaces d'un noeud de réseau de communication commuté par paquets

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10869226B2 (en) 2015-10-23 2020-12-15 Nec Corporation Wireless communication apparatus, wireless communication system and wireless communication method
US20190327643A1 (en) * 2016-12-22 2019-10-24 Nec Corporation Wireless communication device, wireless communication system, and wireless communication method
US10911986B2 (en) * 2016-12-22 2021-02-02 Nec Corporation Wireless communication device, wireless communication system, and wireless communication method
JP7450560B2 (ja) 2021-01-08 2024-03-15 三菱電機株式会社 リソース決定装置、リソース決定方法及びリソース決定プログラム

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JP6065108B2 (ja) 2017-01-25

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