CN1691645A - System and method for relaying data in coordinator-based wireless network - Google Patents
System and method for relaying data in coordinator-based wireless network Download PDFInfo
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- CN1691645A CN1691645A CNA2005100672527A CN200510067252A CN1691645A CN 1691645 A CN1691645 A CN 1691645A CN A2005100672527 A CNA2005100672527 A CN A2005100672527A CN 200510067252 A CN200510067252 A CN 200510067252A CN 1691645 A CN1691645 A CN 1691645A
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Abstract
An apparatus for relaying data in a coordinator-based wireless network. The data relaying apparatus includes a transmitting/receiving unit for receiving a packet for requesting an allocation of a channel time for data transmission, and a control unit for extracting relay information that indicates whether to relay data, from the packet and allocating the channel time in accordance with the relay information.
Description
Technical field
The present invention relates to the data relaying, relate in particular to the system and method that is used for based on the wireless network relay data of telegon.
Background technology
Along with communication and development of internet technology, network environment is changed into the wireless network environment that uses various band radio signals from the cable network environment that uses the wire medium such as coaxial cable or optical cable recently.Therefore, developed and comprise wireless network interface modules and carry out computing equipment (being called " Wireless Communication Equipment " thereafter) specific function, that move by handling various information.In addition, also proposed to make these Wireless Communication Equipment can carry out the radio network technique of efficient communication.
Wireless network can simply be divided into two types.
The wireless network that comprises access point that one of them is meant as shown in Figure 1 is called " wireless network of infrastructure mode ".
The wireless network that does not comprise access point that another is meant as shown in Figure 2 is called " wireless network of specific (ad-hoc) pattern ".
In the wireless network of infrastructure mode, access point is used for the relay data transmission, thereby wireless network is connected to cable network or is belonging to executive communication between the Wireless Communication Equipment of wireless network.Therefore, all data should be passed through access point.
In the wireless network of ad-hoc pattern, the Wireless Communication Equipment that belongs to single wireless network is directly carried out data transmission/reception and is not passed through access point in them.
The type network can be further divided into two classes.
A kind of network type is: wherein be subordinated to certain Wireless Communication Equipment of selecting in the Wireless Communication Equipment of single wireless network and be used as the telegon that distributes the time (being called " channel time " thereafter) that can send data to other Wireless Communication Equipment, and other Wireless Communication Equipment only sends the wireless network of data at channel time.
Another kind of network type is: wherein do not have the Wireless Communication Equipment as telegon, but all-network equipment can send the wireless network of data at any time.
Wherein exist the network type of the Wireless Communication Equipment that is used as telegon to be called " based on the wireless network of telegon ", and in this case, around telegon, form single independent wireless network.If there are a plurality of wireless networks based on telegon in specific space, thereby each wireless network based on telegon has the identification information difference mutually in the middle of them of himself.
Fig. 3 is the view of diagram based on the example of the wireless network of telegon.
In the wireless network based on telegon, the request that telegon response wants to send the Wireless Communication Equipment of data comes the allocated channel time, makes the Wireless Communication Equipment that belongs to same wireless network can carry out data transmission/reception work in the middle of them.In addition, telegon broadcasting is about the information of the affiliated wireless network of telegon itself or about the information of the Wireless Communication Equipment that belongs to wireless network.In this case, Wireless Communication Equipment does not need just can directly carry out data transmission/reception work in the channel time that is distributed by telegon.Therefore, in order to carry out data transmission/reception work between Wireless Communication Equipment, the Wireless Communication Equipment and the telegon of the Wireless Communication Equipment of transmission data, reception data all should be in the effective propagation distance.
For example, suppose as shown in Figure 3 based on the wireless network 300 of telegon, Wireless Communication Equipment 320,330 and 340 and telegon 310 between the diameter of covering spread scope be 10m.
In this case, if Wireless Communication Equipment-1 320 wishes to send data to Wireless Communication Equipment-2 330, then at first should minute be used in the channel time of the information that sends to Wireless Communication Equipment-2 330 to Wireless Communication Equipment-1 320 from telegon 310.Then, Wireless Communication Equipment-1 320 sends data to Wireless Communication Equipment-2 330 in the channel time that is distributed.Why can transmit data like this is because telegon 310, Wireless Communication Equipment-1 320 and Wireless Communication Equipment-2 330 are within effective propagation distance.
Yet, if Wireless Communication Equipment-1 320 wishes to send data to Wireless Communication Equipment-3 340 existing problems.
In this case, Wireless Communication Equipment-1 320 can receive information about Wireless Communication Equipment-3 340 from telegon, and can be assigned with channel time.Yet because the distance between Wireless Communication Equipment-1 320 and Wireless Communication Equipment-3 340 surpasses effective propagation distance of 10m, Wireless Communication Equipment-1 320 can't send data to Wireless Communication Equipment-3 340.
That is, because the restriction of radio transmission distance, even they can be discerned mutually, belonging to can't executive communication between them based on the Wireless Communication Equipment of the wireless network of telegon.
Therefore, even be necessary to provide a kind of radio transmission distance the limited mechanism that the Wireless Communication Equipment that belongs to single wireless network based on telegon can be intercomed mutually.
Summary of the invention
Therefore, the present invention is with solving the above-mentioned problem that occurs in the prior art, and target of the present invention provides a kind of method, make that in telegon can the relay data transmission, thereby can between all Wireless Communication Equipment that belong to based on the wireless network of telegon, carry out data transmission/reception based on the wireless network of telegon.
In the following description part is illustrated other advantage of the present invention, target and characteristics, and they are that part is conspicuous to those skilled in the art by checking following description, perhaps can put into practice acquistion by the present invention.
In order to finish these targets, provide a kind of according to of the present invention, be used for comprising at the device that sends data based on the wireless network of telegon: control unit is used to produce and is used for the grouping of the channel time allocation that request msg sends; And transmission/receiving element, be used for sending the grouping that is produced to telegon; Wherein grouping comprises the trunk information that is used to make the telegon relay data.
In another aspect of this invention, provide a kind of according to of the present invention, be used for comprising at device based on the wireless network relay data of telegon: transmission/receiving element is used to receive that to be used for asking be the grouping that data send the allocated channel time; And control unit, be used for extracting the trunk information that is used to indicate whether relay data from grouping, and according to the trunk information allocated channel time.
In still another aspect of the invention, provide a kind of according to of the present invention, be used for comprising at device based on the wireless network relay data of telegon: transmission/receiving element is used to receive the packet that is used to data to send the channel time that distributes; And control unit, be used for extracting the trunk information that is used to indicate whether relay data, and send to another network equipment in channel time according to the grouping that trunk information will receive by transmission/receiving element from grouping.
In still another aspect of the invention, provide a kind of according to of the present invention, be used for comprising at device based on the wireless network relay data of telegon: transmission/receiving element is used to receive and is used for the packet that data send first channel time that is distributed; Memory cell is used to store data; And control unit, be used for extracting the trunk information that is used to indicate whether relay data, and will comprise that by transmission/receiving element the grouping that is stored in the data in the memory cell sends to another network equipment in the second channel time according to trunk information from grouping.
In still another aspect of the invention, provide a kind of according to of the present invention, be used for comprising step in the method that sends data based on the wireless network of telegon: data transmitting equipment sends and comprises the packet that indicates whether in distributing to the channel time that data send data to be relayed to the trunk information of data relay device; Data relay device receives packet; Data relay device is extracted trunk information from the grouping that receives; The grouping that will receive at channel time according to trunk information with data relay device sends to another network equipment.
In still another aspect of the invention, provide a kind of according to of the present invention, be used for comprising step in the method that sends data based on the wireless network of telegon: data transmitting equipment sends and comprises the packet that indicates whether in first channel time that sends distribution for data data to be relayed to the trunk information of data relay device; Data relay device receives packet; Data relay device storage data; Data relay device is extracted trunk information from the grouping that receives; To comprise that in the second channel time grouping of the data of storage sends to another network equipment according to trunk information with data relay device.
In still another aspect of the invention, provide a kind of according to of the present invention, be used in the method that sends data based on the wireless network of telegon, comprise step: data transmitting equipment sends to data receiver with packet; With when not when data receiver receives acknowledgment packet corresponding to packet, data transmitting equipment sends to telegon with packet, and the packet that wherein sends to telegon comprises that the requirement telegon sends to packet the further information of data receiver.
Description of drawings
In conjunction with the drawings the preferred embodiments of the present invention are described in detail, above-mentioned purpose of the present invention and advantage will become apparent, wherein:
Fig. 1 is the view of example of the Radio Network System of diagram infrastructure mode;
Fig. 2 is the view of example of the Radio Network System of diagram specific (ad-hoc) pattern;
Fig. 3 is the view of diagram based on the example of the wireless network of telegon;
Fig. 4 is the diagram view of the example of piconet (piconet) according to an exemplary embodiment of the present invention;
Fig. 5 is the diagram view of the frame structure of channel time request command according to an exemplary embodiment of the present invention;
Fig. 6 is the diagram view of the structure of mac frame head according to an exemplary embodiment of the present invention;
Fig. 7 is the view that diagram is used to produce the message of channel time request command according to an exemplary embodiment of the present invention;
Fig. 8 is the diagram structure of equipment and the block diagram of PNC according to an exemplary embodiment of the present invention;
Fig. 9 be diagram according to an exemplary embodiment of the present invention, the data communications method flow chart by a channel time;
Figure 10 be diagram according to the present invention another exemplary embodiment, the data communications method flow chart by a channel time;
Figure 11 be diagram according to an illustrative embodiment of the invention, the data communications method flow chart by two channel times;
Figure 12 is the state diagram that the data communication of explanation another exemplary embodiment according to the present invention is handled.
Embodiment
Below, exemplary embodiment of the present invention is described with reference to the accompanying drawings.The content that defines in specification only provides such as detailed structure and element and to help deep understanding detail of the present invention.Therefore, it is evident that do not have such restriction also can realize the present invention.In the specification of the present invention below, element identical in each accompanying drawing uses identical Reference numeral.
Below in conjunction with the flowchart illustrations of method according to an exemplary embodiment of the present invention the present invention is described.Should be appreciated that, can be by the combination of the square frame in illustrated each square frame of computer program instructions realization flow figure and the flowchart illustrations.The processor that these computer program instructions can be provided to general purpose personal computer, special-purpose computer or other programmable data processing unit produces a kind of machine, makes the instruction of being carried out by the processor of computer or other programmable data processing unit create to be used for the method that is implemented in the function that flowchart block or combinations of blocks illustrate.
Can computer can with or computer-readable memory in the storage these computer program instructions, wherein this memory can guide computer or other programmable data processing unit to work in a particular manner, make be stored in computer can with or computer-readable memory in instruction produce the manufacturing article (article) of the instruction mode that has comprised the function that illustrates in the realization flow figure square frame.
Computer program commands can be downloaded in computer or other programmable data processing unit in addition, make that carrying out the sequence of operations step on computer and other programmable device produces computer implemented processing, make the instruction of on computer and other programmable device, carrying out be provided for the step of the function that illustrates in realization flow figure square frame or the combinations of blocks.
Each square frame of flowchart illustrations can be represented module, fragment or the part of code, comprising the one or more executable instructions that are used to realize specific logical function.Should be noted that the function that writes down in the square frame may not occur in order in other are realized.For example according to the function that relates to, in fact two square frames that show may almost be carried out simultaneously continuously, and perhaps square frame may inverted order be carried out sometimes.
Simultaneously, IEEE (Institute of Electrical and Electric Engineers) 802.15.3 has proposed corresponding to the PHY layer of physical layer with corresponding to the standard of the MAC (media interviews control) of data link layer layer, and wherein physical layer and data link layer are in 7 layers of structure by OSI (open system the is interconnected) network model of ISO statement.
In order to understand the present invention more simply, explaining as example based on the wireless network of telegon according to the WPAN (wireless personal domain network) of IEEE 802.15.3 standard.IEEE 802.15.3 standard (will explain in exemplary embodiment of the present) is based on " DraftP802.15.3/D17 " in February, 2003 statement.
In WPAN, Wireless Communication Equipment is called ' equipment ', and the single network of being made up of at least one equipment is called ' piconet '.Also use the term that among WPANs define explain the present invention thereafter.Simultaneously, can from other piconet, pick out this piconet by its piconet identification information.
Can be subordinated to the equipment of selecting in the equipment of piconet as telegon.In WPAN, the equipment that is used as telegon is called ' piconet coordinator ' (hereinafter being called ' PNC ').
Fig. 4 is the diagram view of piconet according to an exemplary embodiment of the present invention.Suppose that piconet 400 is included in PNC three equipment 420,430 and 440 (PNC 410 is set to 10m with the propagation distance of each equipment 420,430 and 440) on every side.
In Fig. 4, the information that equipment-1 420 is asked about the equipment that belongs to piconet 400 from PNC 410, and from PNC 410 reception acknowledgment packet.Can be by ' PNC information request ' order and this process of ' PNC information ' command execution of IEEE 802.15.3 standard.
Equipment-1 420 extracts the information of wishing to send to it equipment (hereinafter being called " target device ") of data about equipment-1 420 from acknowledgment packet.Then, equipment-1 420 sends the grouping (hereinafter being called ' grouping of spread scope authorization request ') that is used for request-reply to target device.If equipment-1 420 receives from the next acknowledgment packet of target device, it can directly send data to target device.Yet,, this means that target device is positioned at outside the spread scope of equipment-1420 if equipment-1 420 can not receive acknowledgment packet from target device.Therefore equipment-1 420 can not directly send data to target device.Yet, the process that can directly send data by ' probe requests thereby ' order and ' PNC replys ' command execution of IEEE 802.15.3 standard to target device.
For example, as shown in Figure 4, if target device is an equipment-2 430, then equipment-1 420 can directly send data to equipment-2 430.Yet if target device is an equipment-3 440, equipment-1 420 can not directly send data to equipment-3 440, but can send data to equipment-3 440 via PNC410.
In this case, perhaps should send the channel time allocation of data to equipment-1 420 to target device with being used for, perhaps when equipment-1 420 when the channel time that distributed sends data, whether it should notify PNC 410 designation datas should be by the information (hereinafter being called ' trunk information ') of PNC 410.PNC 410 determines whether as being used for the telegon that data send according to trunk information.
If target device is an equipment-3 440, PNC 410 should be as telegon, and therefore, the data that slave unit-1420 sends are forwarded to equipment-3 440 via PNC 410.
Fig. 5 to 7 is that diagram comprises the view of the frame structure of trunk information according to an exemplary embodiment of the present invention.Use these frame structures, can carry out the mechanism of explaining in conjunction with Fig. 4.
Below, in order to explain the present invention more simply, with the frame structure of explaining according to IEEE 802.15.3 standard.
Trunk information can be included in equipment-1 420 in the PNC order of 410 request allocated channel times, or in the message that is used for producing at equipment-1 420 order.In this case, use the IEEE802.15.3 standard, the form of ' channel time request command ' is followed in this order, and this message is followed ' MLME-CREATE-STREAM.request ' form.When equipment-1 420 when PNC 410 sends ' channel time request command ', trunk information also can be included in media interviews control (MAC) frame head.
Fig. 5 is the diagram view of the frame structure of channel time request command according to an exemplary embodiment of the present invention.As shown in Figure 5, channel time request command 500 has several channel time request blocks 510.' in the CTRq control ' information field, there is ' Reserved ' zone of 1 at channel time request block 510.By being ' Relay_Req ' zone with this zone definitions, PNC 410 can know whether it needs relay data to send.
Fig. 6 is the diagram view of the structure of mac frame head according to an exemplary embodiment of the present invention.
The prefix 600 of mac frame comprises ' ' DestID ' information field 630 that ' SrcID ' information field 640 of the equipment of ' PNID (piconet identification) ' information field 620 of the identifier of Frame control ' information field 610, indication piconet, sign transmission mac frame, sign receive the target device of mac frame of the control information that has comprised mac frame.' Frame control ' information field 610 has 2 byte longs, and is defined as ' b11 ' regional ' Relay_frame ' zone 650 that is defined as the trunk information of indication in embodiments of the present invention in ' Reserved ' zone in existing IEEE802.15.3 standard.For example, if ' Relay_frame ' information is ' 1 ', its indication should be comprised the mac frame of prefix by the PNC relaying, and if ' Relay_frame ' information is ' 0 ', its indication should be by comprising that the PNC relaying comprises the mac frame of prefix.Therefore, PNC determines whether the frame that relaying receives according to ' Relay_frame ' information.
Fig. 7 is the view of the structure of the diagram message that is used to produce the channel time request command according to an exemplary embodiment of the present invention.
Ask the allocated channel time in order to send order to PNC 410, equipment-1 420 calls and is used for the message that slave unit-1 420 itself produces order.Being used for asking the order of allocated channel time to comprise the information that is included in the message of calling, send to PNC 410 then.Therefore, should comprise trunk information in the message format.
Use IEEE 802.15.3 standard, message format is corresponding to ' MLME-CREATE-STREAM.request ', and shown the message structure that adds trunk information in Fig. 7.Here, trunk information is corresponding to ' Relay_Req ' parameter.Best, the data type of ' Relay_Req ' parameter is a Boolean type.For example, if ' Relay_Req ' parameter value is ' TRUE ', this expression request PNC comes relay data, and if ' Relay_Req ' parameter value is ' FALSE ', this expression does not ask PNC to come relay data.In above-mentioned method, can be modified in the structure of ' MLME-CREATE-STREAM.request ' message that defines in the IEEE 802.15.3 standard.
Fig. 8 is the diagram block diagram of the structure of equipment and PNC according to an exemplary embodiment of the present invention.
Equipment-1 800 comprises device control cell 810 that is used to produce the packet radio that has comprised the mac frame head and the transmission/receiving element 820 that is used to send the packet radio that is produced.Equipment-2 895 has the structure identical with equipment-1 800.
Simultaneously, owing at least one equipment, select PNC, therefore it can be thought one type equipment.Therefore, though PNC 850 has identical structure with equipment-1 800, in Fig. 8, they are illustrated as and have different function mutually.That is, PNC control unit 870, trunk information discrimination unit 880 and packet switched unit 890 can be implemented in the single IC chip, and they are corresponding to the device control cell 810 of equipment-1 800.
Below, will explain the operation of PNC 850 and equipment-1 800 in detail.
Suppose that the mechanism of equipment-1 800 by Fig. 4 finds to belong to the equipment-2 895 of same piconet, but equipment-1 800 can not directly send data to it.
As shown in Figure 7, owing to should distribute to equipment-1 800 channel time from PNC850, so that send data to equipment-2 895, ' MLME-CREATE-STREAM.request ' called in device control cell inside 810.At this moment, because PNC 850 should relay data, equipment-1 is provided for asking ' Relay_Req ' parameter of PNC 850 relayings.Then as shown in Figure 5, ' MLME-CREATE-STREAM.request ' message conversion that equipment-1 800 will call is the channel time request command, and by equipment transmission/receiving element 820 the channel time request command is sent to PNC 850.At this moment, ' Relay_Req ' information 520 shown in Figure 5 and ' Relay_frame ' information 650 shown in Figure 6 are set.
PNC transmission/the receiving element 860 of PNC 850 receives the channel time request command that slave unit-1 800 sends, and trunk information discrimination unit 880 is extracted ' Relay_Req ' information 520 and ' Relay_frame ' information 650, makes PNC 850 know that it should be used as telegon.PNC control unit 870 distributing equipments-1 800 can send the channel time of data.
Equipment-1 800 sends packet at the channel time that is distributed to PNC 850.At this moment, equipment-1 is provided with ' Relay_frame ' information 650 shown in Figure 6, ' SrcID ' information field 640 of mac frame head 600 is set to the equipment identification information of himself, and ' DestID ' information field 630 is set to the equipment identification information of PNC 850.
PNC transmission/the receiving element 860 of PNC 850 receives the packet that slave unit-1 800 sends, and trunk information discrimination unit 880 extraction ' Relay_frame ' information 650, makes PNC 850 know that it should be used as telegon.In order to send the packet that receives to equipment-2 895, PNC850 is set to the equipment identification information of himself with ' SrcID ' information field 640 of mac frame head 600 shown in Figure 6, and ' DestID ' information field 630 is set to the equipment identification information of equipment-2 895.Can carry out this operation by the packet switched unit.In addition, in converting unit 890 operations, can in the memory module (not shown) that separates, store slave unit-1 800 and receive data.Especially, PNC 850 can not add the packet that receives the equipment-2 895 that sends to with changing, and change the information of mac frame head 600 if desired, then packet switched unit 890 can be provided with necessary information, and the grouping that will change sends to equipment-2 895.In previous situation, be preferably in and distribute a channel time between equipment-1 800 and the equipment-2 895 by PNC 850, in a back situation, be preferably between equipment-1 800 and the PNC 850 and two channel times of distribution between PNC 850 and equipment-2 895.
Fig. 9 be diagram according to an exemplary embodiment of the present invention, the data communications method flow chart by a channel time.
Equipment-1 800 is set to the equipment identification information of himself with ' SrcID ' information field 640 of mac frame head 600 shown in Figure 6, and ' DestID ' information field 630 is set to the equipment identification information of equipment-2 895.
Then, equipment-1 800 sends packet to PNC 850.PNC 850 sends packet to equipment-2 895, and slave unit-2 895 receives and replys (ACK) grouping then.Slave unit-2 895 receives the PNC 850 that replys (ACK) grouping and replys (ACK) grouping to equipment-1 800 transmission.
Receive the equipment-1 800 of replying (ACK) grouping from PNC 850 and send next packet to PNC 850.
In the aforesaid mechanism below, consider that equipment-1 800 receives to reply (ACK) and divide into groups the required time after sending packet, be necessary to adjust and be used to the temporal information of dividing into groups to send.
Figure 10 be diagram according to the present invention another exemplary embodiment, the data communications method flow chart by a channel time.
Equipment-1 800 is in the mode identical with Fig. 9, ' SrcID ' information field 640 of mac frame head 600 shown in Figure 6 is set to the equipment identification information of himself, and ' DestID ' information field 630 is set to the equipment identification information of equipment-2 895.
Then, equipment-1 800 sends packet to PNC 850.PNC 850 sends to equipment-1 800 and replys (ACK) grouping, and sends packet to equipment-2 895.
The equipment-2 895 that receives packet from PNC 850 sends to PNC 850 replys (ACK) grouping.PNC 850 sends the grouping be used to ask next grouping to send (hereinafter be called ' Send_next_frame packet ') to equipment-1 800 then.In this case, as shown in Figure 6, can use ' ' Reserved ' zone or ' Frametype ' zone in the Frame control ' information field 610, definition ' the Send_next_frame packet ' of mac frame head 600.' Send_next_frame packet ', it sends next packet to PNC 850 if equipment-1 800 receives.
Figure 11 be diagram according to an illustrative embodiment of the invention, the data communications method flow chart by two channel times.
During first channel time of distributing between equipment-1 800 and the PNC 850 1100, PNC 850 receives slave unit-1 800 and receives packet.At this moment, ' SrcID ' information field 640 of as shown in Figure 6 mac frame head 600 is set to the equipment identification information of equipment-1 800, and ' DestID ' information field 630 is set to the equipment identification information of PNC 850.
The PNC 850 that slave unit-1 800 receives packet replys (ACK) grouping to equipment-1 800 transmission.
Then, in certain memory module that the storage that PNC 850 receives slave unit-1 800 provides in the PNC 850, and if the second channel times 1110 arrive, it sends the packet of the data that comprise storage to equipment-2 895.At this moment, ' SrcID ' information field 640 of as shown in Figure 6 mac frame head 600 is set to the equipment identification information of PNC 850, and ' DestID ' information field 630 is set to the equipment identification information of equipment-2 895.Equipment-2 895 from PNC 850 reception packets during the second channel time 1110 is replied (ACK) grouping to PNC 850 transmissions.
Equipment-1 800 is in the mode identical with Fig. 9, ' SrcID ' information field 640 of mac frame head 600 shown in Figure 6 is set to the equipment identification information of himself, and ' DestID ' information field 630 is set to the equipment identification information of equipment-2 895.
Simultaneously, as shown in Figure 4, when equipment-1 420 is wished when equipment-3 440 sends data, equipment-1420 to equipment-3 440 send the grouping of spread scope authorization request in case know equipment-3 440 whether be located at equipment-3 440 wherein can with covering spread scope that equipment-1 420 is communicated by letter in.If equipment-1 420 can not receive acknowledgment packet by slave unit-3 440, its judgment device-3 440 is positioned at outside the spread scope of equipment-1 420.Then, equipment-1 420 sends the data that send to equipment-3 440 to PNC 410, makes PNC 410 send data to equipment-3 440.
Yet, send data simultaneously or before this, equipment-3 440 may move and enter into spread scope to PNC 410 at equipment-1 420.In this case, do not need equipment-1 420 to send data to equipment-3 440, so equipment-1 420 directly send data to equipment-3 440 via PNC 410.For this reason, equipment-1 420 needs a kind of method that is used to detect this situation.
Especially, by periodically or pre-determined number ground send the grouping of spread scope authorization request, rather than only send once, equipment-1 420 can receive response message from the equipment-3 440 that enters into spread scope.Therefore, equipment-1 420 can directly send data to equipment-3 440.This process of diagram in Figure 12.
For example, if equipment-1 420 receives acknowledgment packet (step 1210) when sending spread scope authorization request grouping N time, then it is to equipment-3 440 transmission data (step 1250).Yet if equipment-1 420 can't receive the acknowledgment packet of spread scope authorization request grouping, it sends data (step 1230) to PNC 410.If receive acknowledgment packet at equipment-1 420 when PNC 410 sends data, then it directly sends data (step 1250) to equipment-3 440.
As mentioned above, the present invention make telegon can be in based on wireless network telegon, that have limited spread scope the method for relay data transmission, and therefore can between the Wireless Communication Equipment that belongs to based on the wireless network of telegon, carry out data transmission/reception.
Although described exemplary embodiment of the present invention for the purpose of illustration, but those skilled in the art will understand, and can be under the prerequisite that does not deviate from the aim of the present invention that limited by appended claims and scope the present invention be carried out modification on various forms and the details.
Claims (23)
1. one kind is used for comprising at the device that sends data based on the wireless network of telegon:
Control unit is used to produce the grouping that is used for asking to send into data the allocated channel time; With
Transmission/receiving element is used for sending the grouping that is produced to telegon;
Wherein grouping comprises the trunk information that is used to make the telegon relay data.
2. device as claimed in claim 1, wherein trunk information comprises the information of Boolean type.
3. device as claimed in claim 1 wherein produces grouping and relates to the message that generation is used to ask channel time.
4. device as claimed in claim 3, wherein message comprises trunk information.
5. device as claimed in claim 4, wherein trunk information comprises the information of Boolean type.
6. device as claimed in claim 1, wherein grouping is a packet radio of following IEEE 802.15.3 standard.
7. one kind is used for comprising at the device based on the wireless network relay data of telegon:
Transmission/receiving element is used to receive the grouping that is used for asking to send into data the allocated channel time; With
Control unit is used for extracting the trunk information that is used to indicate whether relay data from grouping, and according to the trunk information allocated channel time.
8. device as claimed in claim 7, wherein trunk information comprises the data of Boolean type.
9. device as claimed in claim 7, wherein grouping is a packet radio of following IEEE 802.15.3 standard.
10. one kind is used for comprising at the device based on the wireless network relay data of telegon:
Transmission/receiving element is used to receive and is used to data to send the packet of allocated channel time; With
Control unit is used for extracting the trunk information that is used to indicate whether relay data from packet, and sends to another network equipment according to the grouping that trunk information will receive by transmission/receiving element in channel time.
11. device as claimed in claim 10, wherein trunk information comprises the information of Boolean type.
12. device as claimed in claim 10, wherein packet is a packet radio of following IEEE 802.15.3 standard.
13. one kind is used for comprising at the device based on the wireless network relay data of telegon:
Transmission/receiving element is used to receive the packet that is used to data to send distribution first channel time;
Memory cell is used to store data; With
Control unit, be used for extracting the trunk information that is used to indicate whether relay data, and will comprise that by transmission/receiving element the packet that is stored in the data in the memory cell sends to another network equipment in the second channel time according to trunk information from packet.
14. device as claimed in claim 13, wherein trunk information comprises the information of Boolean type.
15. device as claimed in claim 13, wherein packet is a packet radio of following IEEE 802.15.3 standard.
16. one kind is used for comprising in the method based on the wireless network relay data of telegon:
In data transmitting equipment, send and comprise the packet that indicates whether in the channel time that sends distribution for data, data to be relayed to the trunk information of data relay device;
In data relay device, receive packet;
In data relay device, from the packet that receives, extract trunk information; With
The grouping that will receive at channel time according to trunk information in data relay device sends to another network equipment.
17. method as claimed in claim 16, wherein trunk information comprises the information of Boolean type.
18. method as claimed in claim 17, wherein IEEE 802.15.3 standard is followed in packet.
19. one kind is used for comprising in the method based on the wireless network relay data of telegon:
In data transmitting equipment, send and comprise the packet that indicates whether in first channel time that sends distribution for data, data to be relayed to the trunk information of data relay device;
In data relay device, receive packet;
In data relay device, store data;
In data relay device, from the grouping that receives, extract trunk information; With
In data relay device, will comprise in the time that at second channel the grouping of the data of storage sends to another network equipment according to trunk information.
20. method as claimed in claim 19, wherein trunk information comprises the data of Boolean type.
21. method as claimed in claim 19, wherein packet is a packet radio of following IEEE 802.15.3 standard.
22. one kind is used for comprising in the method based on the wireless network relay data of telegon:
In data transmitting equipment, packet is sent to data receiver; With
When not when data receiver receives acknowledgment packet corresponding to packet, in data transmitting equipment packet is sent to telegon, the packet that wherein sends to telegon comprises that the requirement telegon sends to packet the further information of data receiver.
23. method as claimed in claim 22, wherein further information comprises the address information and the relay request information of data receiver.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20040027461 | 2004-04-21 | ||
| KR27461/04 | 2004-04-21 | ||
| KR37486/04 | 2004-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1691645A true CN1691645A (en) | 2005-11-02 |
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ID=35346779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100672527A Pending CN1691645A (en) | 2004-04-21 | 2005-04-20 | System and method for relaying data in coordinator-based wireless network |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100541645B1 (en) |
| CN (1) | CN1691645A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007128219A1 (en) * | 2006-04-27 | 2007-11-15 | Alcatel Lucent | Relay method, base station, relay device and relay system of the wireless access system |
| CN101997855A (en) * | 2009-08-21 | 2011-03-30 | 中兴通讯股份有限公司 | Subframe allocation method, device and base station of multicast/broadcast over single frequency network |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100717836B1 (en) * | 2006-05-23 | 2007-05-14 | 오렌지로직 (주) | Routing method and apparatus using a plurality of channels |
| KR102211437B1 (en) | 2019-10-22 | 2021-02-03 | 윤종열 | Production of orders with forecasts, inventory management, integrated planning operating methods |
| KR102171722B1 (en) | 2019-10-22 | 2020-10-29 | 주식회사 동화인포텍 | Production of orders with forecasts, inventory management, integrated planning system and their operating methods |
-
2004
- 2004-05-25 KR KR1020040037486A patent/KR100541645B1/en not_active IP Right Cessation
-
2005
- 2005-04-20 CN CNA2005100672527A patent/CN1691645A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007128219A1 (en) * | 2006-04-27 | 2007-11-15 | Alcatel Lucent | Relay method, base station, relay device and relay system of the wireless access system |
| US8929272B2 (en) | 2006-04-27 | 2015-01-06 | Alcatel Lucent | Relay method of wireless access systems and base station, relay device and replay system thereof |
| CN101997855A (en) * | 2009-08-21 | 2011-03-30 | 中兴通讯股份有限公司 | Subframe allocation method, device and base station of multicast/broadcast over single frequency network |
| CN101997855B (en) * | 2009-08-21 | 2014-11-05 | 中兴通讯股份有限公司 | Subframe allocation method, device and base station of multicast/broadcast over single frequency network |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100541645B1 (en) | 2006-01-12 |
| KR20050102580A (en) | 2005-10-26 |
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