CN100461673C - Data-bag interacting method and personal field network communication apparatus - Google Patents
Data-bag interacting method and personal field network communication apparatus Download PDFInfo
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Abstract
The invention discloses a method for interaction of data packet, and communication devices in individual domain in order to solve issue that under condition without changing physical layer technique or breaking compatibility of communication devices, current technique is unable to increase communication speed. The method includes steps: sending device divides up data packet into multiple pieces of packet, and sets up sequence number of piece to packet head; then, multiple receivers and transmitters send pieces of packet parallelly; through corresponding connected receivers and transmitters, the receiving device receives multiple pieces of packet parallelly, and recombines the packet based on sequence number of piece. The device includes two or more radio send receive modules and control modules setup parallelly. Without changing current physical technical base, the disclosed method and device raises communication speed and keeps compatibility between devices.
Description
Technical field
The present invention relates to the communication technology, particularly the personal field network communication technology discloses a kind of data-bag interacting method and individual field communication equipment.
Background technology
PAN (Personal Area Network, individual domain network) is meant the network that the equipment in the individual scope is formed, and individual scope also refers to short-range scope.Equipment in the middle of the PAN can connect by various technology, such as bluetooth, UWB (Ultra Wide Band, super-broadband tech), ZigBee (a kind of short-distance wireless communication technology of low speed), even WLAN (Wireless Local Area Network, WLAN (wireless local area network)).
Having stipulated the peak rate that data send in the various communication technologys of PAN, is that 1Mbps, ZigBee are that the WLAN technology that 250kbps, 802.11b stipulate is 11Mbps such as bluetooth.The peak rate that data send is relevant with the concrete technical parameter that equipment adopted, and actual transmission rate often is lower than peak rate, and this is owing to influences such as decay, interference and noises, and causing data to be made mistakes needs to retransmit.The peak data rate of certain communication technology is not arbitrarily to stipulate, follow the concrete scheme that is adopted relevant, as methods such as coding, spread spectrum, modulation, even the communication technology of low peak speed uses two-forty to send data, also can cause the error rate too high often needs to retransmit because technology is incompatible, make the speed or the low rate of the correct data that actual reception arrives.So will really improve the peak rate that data send, have only original technical scheme is improved, even adopt new technology.
Improving the most direct method of peak rate is to adopt new physical-layer techniques, on equipment, is to adopt Base-Band Processing and the radio frequency chip that contains new technology.Another method is to improve the communication protocol on upper strata, improves the throughput of data.The communication protocol on upper strata is the software section of equipment normally, revises relatively easy.But no matter take which kind of method, all relate to the problem of a compatibility, promptly do not influence communicating by letter between equipment and the former equipment after the improvement.So the change to physical layer of device or upper layer communication agreement can not be too big, otherwise the central applied all devices of PAN all will replace to new equipment in the past, and cost is than higher.
A lot of Wireless Telecom Equipments all are single antenna equipment as shown in Figure 1, comprise: the radio-frequency (RF) receiving and transmission module of the network control module of the function of the Central Control Module of the function that the realization network layer is above, realization network layer and realization hardware components function, usually the merging of Central Control Module and network control module is set to control module, and Central Control Module connects external equipment.
In the method for raising traffic rate commonly used, multi-antenna technology is a kind of important technology.If the data that can be divided into low speed to data at a high speed are in different antenna transmission, and the low speed data that receives on the different antennae is reassembled into high-speed data again, so just can improve traffic rate.If but the direct many antenna receiving-sendings technology that adopts in the middle of physical layer as shown in Figure 2 need be made bigger change to process chip, forfeiture is compatible.In order to use a plurality of antennas to improve traffic rate, do not want to revise physical layer again, can be combined into an integral body to a plurality of single antenna equipment uses, in order to coordinate and to manage, the communication protocol that needs shared upper strata, and different, but to take compatibility issue into account with the agreement of original single antenna equipment.Utilize a plurality of equipment to carry out data transmit-receive, mainly be to have utilized radio-frequency (RF) receiving and transmission module, so a plurality of single antenna equipment can be simplified, except physical layer device, include only the data link layer of control physical layer work and essential upper-layer protocol, and remaining more the communication protocol on upper strata can unify to put together.
Simply introduce the knowledge of protocol hierarchy here.In order to make network application more popular, need the network equipment of each company to interconnect, this needs a unified standard, so ISO (InternationalOrganization for Standardization, International Standards Organization) OSI (Open SystemInterconnect Reference Model) OSI is proposed, the notion of layering has been proposed, function ratio between each layer is more independent, be convenient to design separately, and interlayer is undertaken alternately by some information access points, so that coordinate co-operation.As long as adopt identical OSI communication protocol, two systems just can carry out mutual communication.
As shown in Figure 3, the model of OSI has seven layers, be responsible for different functions, be respectively physical layer (Physical), data link layer (Data Link), network layer (Network), transport layer (Transport), session layer (Session), presentation layer (Presentation) and application layer (Application) from the bottom to the upper strata for every layer.Physical layer is the transmission that is used for original bit stream, regulation electronic signal transmission and hardware interface; Data link layer mainly is responsible for data framing, and handles current control, and the specified network topological structure also provides the hardware addressing; Network layer mainly is responsible for routing function, and network layer address promptly is provided, and sets up two connections between the node by addressing, and it comprises by interference networks comes route and relay data; Transport layer comprises towards connecting or not having two kinds of agreements of connection, mainly is responsible for full duplex or half-duplex, current control and error control service end to end; Session layer is responsible for setting up, safeguard and removing being connected between two processes, connects the session activation of being in charge of communicating pair after setting up; The form of the main specified data of presentation layer so that for application program provides general-purpose interface, also comprises encryption function in addition; Application layer is used to define a series of concrete application services.
Actual communication systems generally is not to follow OSI seven layer protocol models fully, but all adopts the thought of layered protocol, and increases as required or delete some protocol layers.Physical layer, data link layer and application layer protocol are but all arranged usually,, so also need network layer protocol if relate to networking.Function of each layer and top description may disagree in the reality, but in general, though each layer may increase or reduce some functions, but all kept basic function, inserted and sent affirmation, network layer regulation route, the service of application layer given application etc. as physical layer specifies ardware feature, data link layer predetermined channel.
Which kind of communication technology no matter existing PAN adopt, and all relate to PAN foundation, equipment adding and leave PAN, and the problem of communication between devices.The foundation of PAN is the channel that an equipment selects one or more channels to use as whole PAN work by scanning channel, and promptly the central all devices of PAN all uses these channels to communicate later on, unless the working channel of PAN changes.After PAN sets up, if an equipment wants to add PAN, it must select a parent device to connect, obtain a network address in network layer then, and write down some necessary information, such as the network address of network identity, parent device, network address of neighbouring device or the like, if an equipment wants to leave PAN, it leaves PAN to the parent device request earlier, disconnects the connection of self then, Other related equipment such as parent device deletion and this device-dependent information.The communication of equipment room may be direct communication, also might need to transmit through router, is called the communication of multi-hop.No matter be the directly communication or the communication of multi-hop, can realize by the routing function of network layer.The application layer of transmitting apparatus at first generates the data flow that sends according to user's input, successively transmits toward the lower-layer protocols stack then, and each protocol stack adds corresponding data packet head or bag tail, and to realize the function of this layer, the device to physical layer sends at last.The physical layer device of receiving equipment is handled through receiving after receiving data, transmit toward the upper-layer protocol stack then, each protocol stack is finished the function of this layer according to data packet head or bag tail, up transmit again after removing packet header of finishing the work or bag tail simultaneously, know to obtain the data that will receive after the application layer process.
Need to prove channel access protocol (being positioned at the agreement of data link layer), can be divided into the PAN of single channel access and the PAN that multichannel inserts to PAN according to PAN.In the middle of the PAN that single channel inserts, all devices all can only be received and dispatched various data on a channel, and in the middle of the PAN that multichannel inserts, equipment can be on a plurality of channels transceive data, owing to can use a plurality of channels, the equipment complexity in the middle of the PAN that multichannel inserts is higher.Therefore a lot of PAN equipment adopt the single channel access protocol, and giving one example below illustrates the work of PAN, and as shown in Figure 4, PAN is set up by device A.
Device A is at first by scanning each channel, select a channel according to certain criterion such as the interference minimum, and transceive data on this channel, the network address of oneself is made as d=0, PAN has just set up like this, supposes it is single channel PAN, and the working channel of so whole PAN has also been determined, after device A is set up PAN, begin to send broadcast.
When equipment B wants to add this PAN, by each channel is scanned, because receive the broadcast that A sends, find the PAN that A sets up, if B wants to add PAN, select A as parent device, send request to A, A receives the agreement of request back, address B is noted in the middle of routing table then, and makes to B and to reply, and the network address of having specified B in replying is d=1, and some parameters of B communication have been stipulated, such as being to adopt the mode of Random Access Channel or the fixing mode of time slot access channel.B is made as d=1 to own address after receiving and replying, and notes the parameter of communication, and the address A in the middle of routing table is noted, and B has just finished the operation that adds PAN like this.
Equipment C, D, E add the method for PAN and process and category-B seemingly separately, but add the selected parent device difference of PAN, and the address is also different.
When E wanted deviated from network, A sent request to parent device, and provide after the A agreement and reply, the address of the E that deletion is write down in the middle of routing table, E also deletes the address of the A of the central record of self routing table, and disconnection is connected with A's.
PAN communication process example as shown in Figure 5, suppose that C will communicate with D, the hierarchy of each equipment of hypothesis is physical layer, data link layer, network layer and application layer among Fig. 5, the data flow of dotted arrow indication equipment inside, realize the data flow between the arrow indication equipment, middle A and B only draw at three layers at the end, because their application layer does not participate in the process that C communicates by letter with D.C to the complete procedure that D sends out data is:
1, at equipment C, application layer at first produces the data of application layer, passes to network layer after adding header data;
2, to find destination address in the middle of routing table be that the next hop address of D is d=0 to network layer, and the network address and some other information are joined in the middle of the header data as oneself the network address, sequence number etc., passes to data link layer again;
3, data link layer adds that some information to packet header as hardware address, down pass to physical layer again;
4, physical layer belongs to hardware components fully, comes deal with data to send then according to the design of chip.
5, A receives the data that C sends, and physical layer passes to data link layer after treatment;
6, data link layer checks that hardware address and self coincide, so continue up to pass to network layer after removing link layer packet header;
7, network layer checks that the network address and self coincide, and find that destination address is d=2, look into routing table and learn that next hop address is d=1, so original packet header is changed into new packet header, such as source address is the address of A rather than the address of C, then down passes to data link layer;
8, data link layer passes to physical layer after adding oneself packet header; Physical layer sends data after treatment.
9, B receive carry out after the data of A with category-A like operation send to the physical layer of D then;
10, pass to data link layer after the physical layer process of D;
11, data link layer checks that hardware address and self coincide, and passes to network layer after removing packet header;
12, network layer finds that destination address is oneself, passes toward application layer so remove packet header;
13, application layer draws the data that the application layer of C will send after treatment.
So just finished C data communication to D.
The existing method that improves PAN communication between devices speed is that chip design itself is made amendment, and adopts brand-new physical-layer techniques more at a high speed, and the agreement on upper strata can be done minor modifications or not make an amendment.Has only 1Mbps such as existing Bluetooth technology peak rate, its physical layer mainly adopts frequency-hopping spread spectrum and GFSK (GaussFrequency Shift Keying, Gaussian Frequency Shift Keying) technology, if adopt the UWB technology as new physical-layer techniques, can improve the traffic rate of Bluetooth technology greatly, be equivalent to the physical layer of existing bluetooth is replaced to the physical layer of UWB.The equipment of high-speed physical layer technology may not carry out direct communication with original equipment but like this adopt more, can't compatibility.In order to solve compatibling problem, can keep original physical layer, use two physical layers simultaneously, and make an amendment at the data link layer segment, select a physical layer according to the practical communication needs.
The difficulty that the shortcoming of said method is to revise chip design is bigger, needs certain R﹠D cycle; The equipment of new technology may be incompatible with existing equipment, and the communication network that adopts old technology can only change all devices in the network into new equipment in order to improve data rate, and cost is too high; If take two physical layers for compatibility, then chip cost is too high.
Summary of the invention
The invention provides a kind of data interactive method and personal field network communication apparatus,, can't improve the problem of traffic rate to solve prior art under the prerequisite of the physical-layer techniques of not passing through the modification communication equipment or broken ring communication equipment compatibility.
A kind of data-bag interacting method, the transmitting apparatus of described packet or receiving equipment comprise at least two transceivers respectively, described data-bag interacting method comprises the steps:
A, transmitting apparatus judge whether the peak rate of a transceiver is higher than the target transmission rate of described packet, if then receive and dispatch described packet by a pair of transceiver between transmitting apparatus and the receiving equipment; Otherwise, execution in step B;
B, transmitting apparatus determine the transceiver number that is connected with receiving equipment, and judgement is divided into the peak rate whether each streaming rate behind X the packet fragmentation all is lower than single transceiver with packet, if, execution in step C then; Otherwise, determining to send described packet, described X is smaller or equal to the number of the transceiver that is connected with receiving equipment;
C, transmitting apparatus are divided into X packet fragmentation with packet, and the burst sequence number is set in the packet header of each packet fragmentation, the described packet fragmentation of parallel transmission on X the transceiver, by receiving equipment each packet fragmentation of transceiver parallel receive by being connected with a described X transceiver, and according to the described burst sequence number described packet of recombinating.
The equal in length of a described X packet fragmentation; Perhaps, the length of each packet fragmentation is inversely proportional to the right cost that is connected of transceiver of corresponding this packet fragmentation of transmitting-receiving.
Described connection cost is determined according to following mode: determine according to the right route cost of transceiver that correspondence connects, described route cost transceiver to the process that connects in, both sides obtain from mutual routing iinformation respectively; Perhaps according to the transceiver of correspondence between connect the answer delay of test command and/or reply loss situation and determine.
And also comprise among the described step C: as X during less than the number of all transceivers that are connected with receiving equipment, transmitting apparatus is selected a described X transceiver successively according to described connection cost order from small to large.
According to the method for the invention, wherein a kind of implementation is: each transceiver that correspondence is connected is to belonging in a plurality of individual domain networks respectively.
In described a plurality of individual domain network, the transceiver of creating each individual domain network lays respectively at single transceiver equipment and/or overcharges on the sender equipment.
Wherein, be positioned at a transceiver of overcharging on the sender equipment and create one by one that the process of people territory network comprises the steps:
Overcharge this transceiver of sender device start and create individual domain network;
This transceiver selects working channel to carry out work, and definite individual domain network address;
Overcharge the network address of this transceiver of sender equipment records.
In described transmitting apparatus and the receiving equipment, each to the transceiver that correspondence connects to realizing the process that connects is:
One side creates people territory network one by one, and the opposing party realizes connecting after adding this individual domain network; Perhaps the transceiver on other equipment is created people territory network one by one, and both sides realize connecting after joining this individual domain network respectively; Both sides' Internet address and routing iinformation then, and preserve the routing iinformation of this transceiver separately.
Be positioned at when overcharging on the sender equipment when creating one by one the transceiver of people territory network, the process that other transceivers add this individual domain network comprises the steps:
The side's of adding transceiver adds to the transceiver request of establishment side after scanning this individual domain network on the working channel of establishment side's transceiver;
The side's of establishment transceiver is overcharged distribution network address, sender equipment approval back and is sent to the transceiver of request adding through the place.
According to the method for the invention, wherein another kind of implementation is: the corresponding respectively a plurality of transceivers that connect are to belonging to people territory network one by one, this individual domain network is set up by the sender equipment of overcharging that comprises two transceivers at least, and the process of foundation comprises the steps:
Overcharge the sender device start and set up individual domain network, each transceiver selects a working channel to carry out work respectively;
Overcharge sender equipment and determine the network address of this individual domain network.
Wherein, in described transmitting apparatus and the receiving equipment, each to the transceiver that correspondence connects to realizing the process that connects is:
Wherein each creates people territory network one by one to the right side of transceiver that correspondence connects, and each transceiver of the opposing party adds this individual domain network and a corresponding transceiver that connects establishment side respectively; Perhaps, other are overcharged sender equipment and create people territory network one by one, and each each right transceiver of transceiver that correspondence is connected adds this individual domain network respectively and is connected on the transceiver of establishment side; Each transceiver that correspondence is connected is to Internet address and routing iinformation then, and by described transceiver the place overcharged that sender is unified preserves all routing iinformations.
Add when overcharging the individual domain network that sender equipment created when overcharging sender equipment, specifically comprise the steps:
The side's of adding transceiver scans this individual domain network respectively on the channel of each side's of establishment transceiver work, and adds to the transceiver request of the establishment side of correspondence respectively;
The side's of establishment transceiver is respectively the transceiver that transceiver distribution network address, adding side and the request of sending to add after the approval of sender equipment is overcharged at the place.
In above-mentioned two kinds of implementations, overcharge the individual domain network that each transceiver on the sender equipment independently selects to leave current adding.
Transmitting apparatus is determined the number of the transceiver of connection receiving equipment according to all routing iinformations of this locality.
Also be provided with segmental identification information and burst sum in the packet header of described packet fragmentation.
A kind of personal field network communication apparatus of the present invention comprises:
The parallel a plurality of transceivers that are provided with, each transceiver comprises independently network control module and radio-frequency (RF) receiving and transmission module, perhaps each transceiver comprises independent radio-frequency (RF) receiving and transmission module, and a shared network control module;
Central Control Module, be used to judge whether the peak rate of a transceiver is higher than the target transmission rate of packet, if the peak rate of a transceiver is higher than the target transmission rate of packet, then send described packet by a pair of transceiver that is connected with receiving equipment; If the peak rate of a transceiver is not higher than the target transmission rate of packet, then definite transceiver number that is connected with receiving equipment, and judge packet is divided into the peak rate whether each streaming rate behind X the packet fragmentation all is lower than single transceiver, if, then packet is divided into X packet fragmentation, and the burst sequence number is set in the packet header of each packet fragmentation, the described packet fragmentation of parallel transmission on X transceiver, by receiving equipment each packet fragmentation of transceiver parallel receive by being connected with a described X transceiver, and according to the described burst sequence number described packet of recombinating, otherwise, determine to send described packet, described X is smaller or equal to the number of the transceiver that is connected with receiving equipment.
Described radio-frequency (RF) receiving and transmission module comprises: baseband processing unit, RF processing unit and antenna.
Beneficial effect of the present invention is as follows:
Of the present invention packet is divided into packet fragmentation by in the parallel method that sends of multichannel, multi channel notion is to be placed in the middle of the upper-layer protocol of equipment, lower-layer protocols or single channel, therefore only need do a spot of modification to the communication protocol on upper strata, do not need to revise or only need the following software protocol part of few modification data network layer, just can improve the hardware circuit solution of original wireless communication technology, enlarge the range of application of existing wireless communication equipment, convenient exploitation and maintenance are compatible;
The sender equipment of overcharging of the present invention does not need to change physical-layer techniques, has kept the compatibility with original single transceiver equipment, can with original single transceiver equipment co-operation, improved the flexibility of communication.
Description of drawings
Fig. 1 is existing single antenna radio-frequency (RF) receiving and transmission module equipment;
Fig. 2 is existing many antennas radio-frequency (RF) receiving and transmission module equipment;
Fig. 3 is existing OSI seven layer protocol models;
Fig. 4 is existing PAN schematic network structure;
Fig. 5 is in the existing PAN network, the multi-hop data communication process example between two equipment;
Fig. 6 is for overcharging sender device structure schematic diagram under first kind of communication control processor of the present invention;
Fig. 7 is for overcharging sender device structure schematic diagram under second kind of communication control processor of the present invention;
Fig. 8 is a protocol stack model of overcharging first kind of communication control processor of sender equipment;
Fig. 9 comprises the network example of overcharging sender equipment under first kind of communication control processor;
Figure 10 is the network diagram of embodiment one of the present invention;
Figure 11 is in the schematic diagram shown in Figure 10, overcharges the schematic diagram of communication process between sender A and the D according to first kind of communication protocol control;
Figure 12 is a protocol stack model of overcharging second kind of communication control processor of sender equipment;
Figure 13 comprises the network example of overcharging sender equipment under second kind of communication control processor;
Figure 14 is the network diagram of embodiment two of the present invention;
Figure 15 is in the schematic diagram shown in Figure 14, overcharges the schematic diagram of communication process between sender A and the D according to second kind of communication protocol control.
Embodiment
The present invention carries out transfer of data by the communication equipment that comprises many cover transceivers, to reach the effect that improves traffic rate, a kind of structured flowchart of this communication equipment as shown in Figure 6, be used for first kind of control protocol of the present invention, comprise: a plurality of radio-frequency modules, a plurality of network control module, a Central Control Module, wherein:
Central Control Module is connected between peripheral hardware and the network control module, compares with prior art, and variation has taken place its function, is responsible for the co-ordination of each transceiver of control, comprises the network layer communication protocol of above (not comprising network layer);
Radio-frequency (RF) receiving and transmission module is identical with the radio-frequency (RF) receiving and transmission module of existing single transceiver equipment, comprises baseband processing unit, RF processing unit and antenna, only realizes the protocol stack of hardware components;
Network control module comprises and connects a plurality of of radio-frequency (RF) receiving and transmission module respectively, is respectively the function that each radio-frequency (RF) receiving and transmission module realizes network layer and following software protocol stack;
Under this structure, each transceiver comprises independently network control module and radio-frequency (RF) receiving and transmission module.
Another kind of structured flowchart as shown in Figure 7, be used for second kind of control protocol of the present invention, because the network layer of second kind of control protocol is shared, so network control module is set to one, under this structure, each radio-frequency (RF) receiving and transmission module constitutes a transceiver.
When actual design, all modules can be integrated in the middle of the chip, also can partly accomplish software protocols such as network control module and Central Control Module in the chip, and a plurality of radio-frequency (RF) receiving and transmission module can realize with a plurality of chips or a chip, and, in the equipment shown in Figure 6, each network control module can utilize a chip to realize with the corresponding radio-frequency (RF) receiving and transmission module that is connected.
The invention provides two kinds of communication control processors of overcharging sender equipment, divide two parts to describe below.
First, first kind of control protocol
The protocol stack model of first kind of control protocol as shown in Figure 8, suppose to comprise m transceiver, each transceiver comprises radio-frequency (RF) receiving and transmission module and network control module, physical layer, data link layer and network layer protocol have been realized, the shared upper-layer protocol of all transceivers, upper-layer protocol is the general designation of above all protocol stacks of network layer here.Under this agreement, a PAN can be set up or add to each transceiver separately, carry out independent communication with external equipment, but each transceiver can only belong to a PAN, when the application layer data speed that can overcharge sender equipment was too high, the equipment high level called the parallel data that send of a plurality of transceivers.
The following describes the course of work when adopting first kind of control protocol, the course of work of overcharging sender equipment PAN of the present invention comprises that PAN sets up, equipment adds or leaves PAN, the equipment process with devices communicating.
As shown in Figure 9, Fig. 9 comprises the schematic network structure of overcharging sender of the present invention, comprise that 6 are overcharged sender and 3 single transceivers, each black circle (solid rim) He Baiquan (open circle) represents a transceiver among the figure, Hei Quan that has and Bai Quan are drawn in together, and the circle that a circle dotted line is arranged outside, represent that this is an equipment of overcharging sender, include a plurality of transceivers, have line to show that they can direct communication between two circles, overcharging for two has many lines to represent that they have the connection of a plurality of transceivers between the sender equipment.
No matter be single transceiver equipment or overcharge that sender equipment can be set up or independently select to add PAN, each transceiver can only belong to a PAN, it still is the example explanation with Fig. 9, suppose that two transceivers overcharging sender N5 have set up a PAN respectively, N6 sets up a PAN, overcharge sender N3, two transceivers among the N7 select a transceiver among the N5 to add corresponding PAN as parent device respectively, single transceiver N1 and N8 select a transceiver among N3 and the N7 to add corresponding PAN as parent device respectively, overcharge sender N2, a transceiver among the N6 also joins the PAN that N6 sets up, and connects by a single transceiver N4.Describe operation principle below respectively in detail:
1, the foundation of PAN
Single transceiver equipment and overcharge sender equipment to set up the basic process of PAN similar, different is to overcharge sender equipment need set up a plurality of PAN, each transceiver is set up a PAN, and adopts different network layer mobile network identification number and address.
2, the adding of PAN
Parent device of choice of equipment adds PAN, the PAN that the process that connects and conventional single transceiver equipment are formed is similar, but can allow has a plurality of transceivers to connect between two equipment, therefore equipment need be known what which transceiver and the other side connected, the transceiver port of oneself number is noted, be placed in the middle of the data structure such as port numbers table of upper-layer protocol, look into the port numbers table can be known for what transceivers with same equipment connection.Equipment adds after the PAN, and its each transceiver can both obtain a network identity and the network address.
3, PAN's leaves
It is similar to leave the PAN that the process of PAN and single transceiver equipment form, and each transceiver of just overcharging sender equipment can not leave certain PAN simultaneously, and the transceiver that has left does not participate in communication.
4, overcharge communication process between sender equipment N3 and the N5
Suppose that N3 sends data to N5, specifically comprises the steps:
(1) N3 at first connects with N5, comprise direct connection or the multi-hop connection of transmitting through one or more routers, a plurality of transceivers of N3 are to be undertaken by different channels with the connection of a plurality of transceivers of N5, each transceiver of N3 and N5 all is operated on the different channels in other words, and a pair of transceiver that is connected of N3 and N5 is being connected of setting up on a channel, and another then is the connection of setting up on one other channel to connecting.After connect setting up, N3 notes the address of number that connects and the transceiver that connected, and wherein the network address of each transceiver of N5 is recorded in the middle of the routing table of each transceiver of correspondence of N3;
(2) if N3 wants to communicate with N5, the upper-layer protocol of N3 (centre control module) judges whether that according to the speed of data needs carry out burst to data, the operation of burst is the data flow that the data flow of a high speed is divided into several low speed, and the data rate of low rate data streams is not higher than the data rate of single transceiver.If data rate is not higher than the peak rate of single transceiver, do not need burst, the high level of N3 selects a transceiver that data are passed to network layer (promptly passing to network control module from center control), and the communication mode according to single transceiver of routine communicates then; If data rate is higher than the peak rate of single transceiver, the information that is connected with N5 that N3 is write down by inquiry, knowing with N5 has several transceivers to link to each other, promptly can set up several connections simultaneously, judge then whether the data flow behind the burst still is higher than the peak rate of single transceiver, if still be higher than, then provide one and exceed the information that transmittability is made mistakes because of speed is too high, if streaming rate is lower than the peak rate of single transceiver behind the burst, just data flow is carried out burst, for convenience at receiving terminal shuffling information according to the order of sequence, each burst is all compiled sequence number;
(3) data flow behind the burst is delivered to each respectively and is sent (promptly passing to network control module from center control) according to the mode of the single transceiver of routine above the transceiver, in the middle of Fig. 9, and the actual transmission that has two PAN to participate in data;
(4) each transceiver of N5 receives according to the mode of the single transceiver of routine, each burst information is passed to upper layer protocol module handle (promptly passing to Central Control Module from network control module);
(5) Central Control Module of N5 is combined into data flow at a high speed to them according to the order of sequence according to the sequence number of each burst information, carries out conventional processing again.
For the course of work is described better, be elaborated with embodiment one below:
As shown in figure 10, A has two transceiver A1 and A2, PAN is set up in the high level indication of A, so A1 and A2 be scanning channel separately, select a channel to carry out work respectively, the network layer of A1 and A2 is determined network identity and the address of oneself separately, A1 is 1:0, A2 is 2:0, the numeral network identity of colon front here, the numeral network address of back.Concerning A, it has two working channels, belongs to two PAN simultaneously, but each transceiver is had only a working channel, only belongs to a PAN.
When overcharging two PAN of sender B adding A foundation, B has two transceiver B1 and B2, they are scanning channel separately, on the channel of A1 and A2 work, receive the data that A1 and A2 send respectively, thereby know the existence of PAN1 and PAN2, B1 and B2 want to add PAN1 and PAN2, send request to A1 and A2 respectively.The high level of A1 and A2 notice A, A agrees that the back is to B distribution address, wherein the network layer of A1 is responsible for distributing the address to B1, the network layer of A2 is responsible for distributing the address to B2, A1 and A2 are recorded in the address of B1 and B2 separately in the middle of the routing table respectively then, A1 and two port numbers of A2 that the high level record of A connects with B, A1 and A2 make and replying then, specify address and some messaging parameters of B1 and B2 in the middle of replying.B1 and B2 receive and reply back record messaging parameter, and add route table items separately, because all receive replying of A from B1 and two ports of B2, therefore knows that with A two connections are arranged, thus high-rise two port numbers B1 and the B2 that notes with the A connection of notice.
When single transceiver equipment C added PAN, C only communicated with the A1 transceiver of A, and the process that its process merchandiser transceiver adds equipment is the same.
Overcharge method and the process of sender D, E adding PAN and follow category-B seemingly, the network address of two transceivers of attention E is also inequality, but this does not hinder normal work, because though two transceivers are to belong to same equipment, but they are the PAN that belong to different, and two work of PAN below network layer are independently.And the network address is used for routing addressing, and the address difference of two transceivers does not hinder this function, as long as there is the address to exist.
When E wants deviated from network, so send transceiver A1 from request to parent device A and A2 by E1 and E2, after receiving, A1 and A2 pass to the high level of A, provide after A agrees and reply, simultaneously A1 and A2 delete the E1 that writes down and the address entries of E2 separately in the middle of routing table, and E1 and E2 also delete the A1 and the A2 address entries of record in the middle of self routing table, and disconnection is connected with A1 and A2's, E just disconnects with A and having connected like this, and the high level of E also can select E1 or E2 to leave A separately.
As shown in figure 11, for overcharging the process of communicating by letter between sender A and the D, the hierarchy of each equipment of hypothesis is physical layer, data link layer, network layer and application layer among the figure, the data flow of dotted arrow indication equipment inside, data flow between the solid arrow indication equipment, middle B only draws low three layers, because its application layer does not participate in the process of A with D communication.
The processing procedure that the A end sends packet specifically comprises the steps:
1, the application layer of A produces data at a high speed, think that through judging data rate is than higher, inquiry port numbers table, finding has the connection of two transceivers with D, thus can be divided into two sections low rate data streams, through calculating, speed behind the burst is in the limit of power of transceiver, so data are divided into two packet fragmentation, add the network layer that passes to A1 and A2 behind the packet header separately, write down packet fragmentation sign, the sequence number of packet fragmentation and the total number of packet fragmentation in the middle of the packet header;
2, the network layer of A1 and A2 table of query and routing separately, next hop address is respectively the B1 of d=1:1 and the B2 equipment of d=2:1, adds the data link layer that passes to A1 and A2 behind the network layer packet header respectively more separately;
3, the data link layer of A1 and A2 adds that separately the packet header of oneself passes to physical layer again;
4, after the physical layer of A1 and A2 is handled separately data are sent.
Each packet fragmentation arrives B through A and B transceiver to the channel of setting up respectively, and the processing procedure that the B end is transmitted packet specifically comprises the steps:
5, the physical layer of B1 and B2 receives the data that A1 and A2 send respectively, passes to data link layer after dealing with separately;
6, the data link layer of B1 and B2 passes to network layer after handling respectively;
7, the routing table looked into respectively separately of the network layer of B1 and B2 learns that next hop address is the D1 of address d=1:2 and the D2 of d=2:2, so pass to corresponding data link layer after changing new network layer packet header respectively into;
8, pass to the corresponding physical layer again after the data link layer of B1 and B2 is handled respectively;
9, again data are sent after the physical layer of B1 and B2 is dealt with separately.
Each packet fragmentation arrives D through the transceiver between B and the D to the channel of setting up respectively, and the processing procedure that the D termination is received packet specifically comprises the steps:
10, the physical layer of D1 and D2 is received the packet fragmentation that B1 and B2 send separately, and gives corresponding data link layer after handling;
11, give corresponding network layer after the data link layer deals of D1 and D2;
12, the network layer of D1 and D2 finds that destination address is exactly oneself, so pass to application layer again;
13, the application layer of D is a burst according to packet fragmentation identification discovery packet, after so two packet fragmentation all receive by the time, according to sequence number they are reorganized into the data flow of a high speed, handle the data of the application layer transmission that obtains A again according to the method for routine, so just finished the once communication from A to D.
Second portion, second kind of communication control processor
As shown in figure 12, it is the protocol stack model of second kind of control protocol, still hypothesis comprises m transceiver, each transceiver comprises radio-frequency (RF) receiving and transmission module and network control module, all transceiver community network layers of same equipment and upper-layer protocol more, more upper-layer protocol of the present invention are meant the common name of above all protocol stacks of network layer.Under this agreement control, to overcharge sender equipment for one and can only set up a PAN, network layer is coordinated each transceiver work according to the port numbers of each transceiver.
As shown in figure 13, be to comprise the schematic network structure of overcharging sender of the present invention, each black circle (solid rim) He Baiquan (open circle) represents a transceiver among the figure, Hei Quan that has and Bai Quan are drawn in together, and the circle that a circle dotted line is arranged outside, represent that this is one and overcharges sender equipment, include a plurality of transceivers, have line to show that they can direct communication between two circles, overcharging for two has many lines to represent that they have the connection of a plurality of transceivers between the sender equipment.Different with first kind of control protocol, each overcharges sender equipment can only set up a PAN, other each transceivers of overcharging in the sender equipment can select one of them transceiver to add as parent device, certainly, overcharge the PAN that each transceiver in the sender equipment also can select other single transceivers to set up, set up but the PAN that parallel two equipment that send packet fragmentation add necessarily overcharges sender equipment by one.Describe operation principle below respectively in detail:
1, overcharges sender equipment and set up PAN
An equipment is overcharged sender and is still set up a PAN, its basic process is similar, and the network layer of overcharging the PAN that sender equipment set up allows a plurality of channels, is adopted by a plurality of transceivers respectively, but because the community network layer, mobile network identification number is identical with the address.In order to distinguish different transceivers, in the middle of network layer, use the different transceiver of port numbers marking equipment.
2, overcharge sender equipment and add PAN
Overcharge parent device of sender choice of equipment and add PAN, the process that connects and the method for single transceiver are basic identical, but can allow has a plurality of transceivers to connect between two equipment, therefore equipment need be known what which transceiver and the other side connected, the transceiver port of oneself number is noted, allowing simultaneously has multinomial destination address identical (port numbers difference) in the middle of the routing table, and expression has the connection of a plurality of transceivers with same equipment.
3, overcharge sender equipment and leave PAN
Overcharging sender equipment, to leave the PAN that the process of PAN and single transceiver equipment form similar, and each transceiver of just overcharging sender equipment can not leave certain PAN simultaneously, and the transceiver that has left does not participate in communication.
4, overcharge communication between the sender equipment
Still consulting shown in Figure 13ly, is example with the communication process of overcharging between sender equipment N3 and the N5, supposes that N3 sends data to N5, specifically comprises the steps:
(1) N3 at first connects with N5, comprise direct connection or the multi-hop connection of transmitting through one or more routers, a plurality of transceivers of N3 are connected with a plurality of transceivers of N5 by different channels, each transceiver of N3 and N5 all is operated on the different channels in other words, and a pair of transceiver that is connected of N3 and N5 is being connected of setting up on a channel, and another then is the connection of setting up on one other channel to connecting.After connecting foundation, N3 notes the address of N5, if there is the connection of a plurality of transceivers that multinomial record is just arranged;
(2) if N3 wants to communicate with N5, the upper-layer protocol of N3 (centre control module) judges whether that according to the speed of data needs carry out burst to data, the operation of burst is the data flow that the data flow of a high speed is divided into several low speed, and the data rate of low rate data streams is not higher than the data rate of single transceiver.If data rate is not higher than the peak rate of single transceiver, do not need burst, the network layer of N3 selects a transceiver that data are passed to its data link layer, and the communication mode according to single transceiver of routine communicates then; If data rate is higher than the peak rate of single transceiver, N3 network layer by the inquiry write down is connected with N5 number, knowing with N5 has several transceivers to link to each other, promptly simultaneously can set up several connections, judge then whether the data flow behind the burst still is higher than the peak rate of single transceiver, if still be higher than, then provide one and exceed the information that transmittability is made mistakes because of speed is too high, if streaming rate is lower than the peak rate of single transceiver behind the burst, just data flow is carried out burst, for convenience at receiving terminal shuffling information according to the order of sequence, each burst is all compiled sequence number;
(3) data flow behind the burst is delivered to each respectively and is sent according to the mode of the single transceiver of routine above the transceiver;
(4) each transceiver of N5 receives according to the mode of the single transceiver of routine, each burst information is passed to the network layer protocol of Central Control Module and handles.(5) network layer of the Central Control Module of N5 is combined into data flow at a high speed to them according to the order of sequence according to the sequence number of each burst information, carries out conventional processing again.
For the course of work is described better, describe in detail with embodiment two below:
As shown in figure 14, A has two transceiver A1 and A2, and PAN is set up in the indication of the high level of A, so A1 and A2 scanning channel separately selects a channel to carry out work respectively, the high level of A is made as d=0 to the address of oneself.Concerning A, it has two working channels, but each transceiver A1 and A2 are had only a working channel.
Overcharge the sender equipment B two transceiver B1 and B2 are arranged, they are scanning channel separately, on the channel of A1 and A2 work, receive the data that A1 and A2 send respectively, thereby know the existence of PAN, B wants to add PAN, send request by B1 and B2 to A1 and A2, the high level of A1 and A2 notice A, A agrees that the back is to B distribution address, the address of B is recorded in the middle of the routing table, because from A1 and two ports of A2 request is arranged all, so two destination addresses are arranged in the middle of the routing table is items of B, make by A1 and A2 respectively then and replying, in the middle of replying, specify address and some messaging parameters of B.B receives and replys back record messaging parameter, and adds route table items because all receive from B1 and two ports of B2 and to reply, so routing table two destination addresses are arranged is items of A.
When single transceiver equipment C added PAN, C only communicated with the A1 transceiver of A, and the process that its process merchandiser transceiver adds equipment is the same.
Overcharge sender equipment E if deviated from network, so send transceiver A1 from request to parent device A and A2 by E1 and E2, after receiving, A1 and A2 pass to the high level of A, provide after A agrees and reply, delete two address entries of the E that in the middle of routing table, writes down simultaneously, E also deletes two address entries of the A of record in the middle of self routing table, disconnects and the A1 of A and being connected of A2, and E more high-rise can be selected being connected of A1 or A2 disconnection and A.
As shown in figure 15, for overcharging the process of communicating by letter between sender A and the D, the hierarchy of supposing each equipment is physical layer, data link layer, network layer and application layer, the data flow of dotted arrow indication equipment inside, data flow between the solid arrow indication equipment, because the application layer of B does not participate in the process that A communicates by letter with D in the middle of it, so B only draws at three layers at the end.
The handling process that the A end sends data specifically comprises the steps:
1, the application layer of A produces data at a high speed, passes to network layer after adding packet header;
2, the network layer of A thinks that data rate is than higher, need carry out burst, table of query and routing, find that destination address is have two of D, next hop address all is the B equipment of d=1, but port numbers is respectively A1 and A2, so can be divided into two sections low rate data streams, through calculating, speed behind the burst is in the limit of power of transceiver, so network layer is carried out burst to data, obtains two packets, add the data link layer that passes to A1 and A2 behind the network layer packet header respectively separately, write down the numbering of packet and the number of total packet in the middle of the packet header;
3, the data link layer of A1 and A2 adds that separately the packet header of oneself passes to physical layer again;
4, after the physical layer of A1 and A2 is handled separately data are sent.
The processing procedure that the B end is transmitted data comprises the steps:
5, the physical layer of B1 and B2 receives the data that A1 and A2 send respectively, passes to corresponding data link layer after dealing with separately;
6, pass to the network layer of B after the data link layer deals of B1 and B2;
7, because be the data of coming,, look into routing table respectively and learn that next hop address is the D of address d=2, so change the data link layer of passing to B1 and B2 behind the new network layer packet header respectively into so network layer is thought two parts of different data from different ports;
8, pass to the corresponding physical layer again after the data link layer deals of B1 and B2;
9, again data are sent after the physical layer of B1 and B2 is dealt with separately.
The processing procedure that the D termination is received data comprises the steps:
10, the physical layer of D1 and D2 is received the data of B1 and B2 separately, and gives corresponding data link layer after handling;
11, the network layer of giving D after the data link layer deals of D1 and D2;
12, the network layer of D finds that destination address is exactly oneself, but finds that packet is a burst, so two packets all receive by the time, according to sequence number they is reorganized into the data flow of a high speed then, passes to application layer again;
13, the application layer of D is handled the data that the application layer that obtains A will send according to the method for routine, has so just finished the once communication from A to D.
Among above-mentioned two embodiment, the concrete mode of data fragmentation is a lot, the simplest mode is a mean allocation, because the connection cost difference of transceiver, under a lot of concrete scenes, mean allocation can not obtain best transfer rate, so that connects cost according to difference and can reach best effect when cutting apart the length of packet fragmentation.
As shown in figure 14, A sends data to D, and the transmission rate of supposing each transceiver is 1000kb/s, the data structure of A query note link information, as the port numbers table, finding has two connections with D, is respectively A1-〉D1, cost is 32, and A2-〉D2, cost is 64.If the data rate that sends is less than 2000kb/s, then think and to send by burst, the burst size that calculates distribution by the connection cost is 64:32=2:1, if, can reach optimal strip, if speed is between 1500kb/s and 2000kb/s so send data rate less than (2+1)/2*1000=1500 (kb/s), can not reach optimal strip, such as 1800kb/s, the burst size of Fen Peiing is 5:4 so, and the promptly actual burst speed that sends is 1000kb/s:800kb/s.(the actual transmission rate of A2 is that 800kb/s is not meant that it changes transmission rate here, and the speed that it still presses 1000kb/s sends, and just possibility is because divide leaf length little, so also it has not just been sent out when sending out as A1).
In general, be provided with the n bar and connect, the ratio of cost is x1:x2:...:xn, and flank speed is Vm, and data rate is Vd, if Vd so〉Vm*n, then exceed transmitter capabilities, if:
Vm*n>＝Vd>[(1/x1+1/x2+...+1/xn)/MAX(1/x1，1/x2，...，1/xn)]*Vm
Wherein, MAX (1/x1,1/x2, ..., 1/xn) 1/x1 is got in expression, 1/x2, ..., 1/xn maximum wherein can not reach optimal strip so, when adopting this method to carry out burst, give earlier the minimum maximum burst of branch (promptly not exceeding the transmitter flank speed) of cost, do not consider to have got the transceiver of burst then, if remaining burst can be with optimal strip then used optimal strip, otherwise give the remaining minimum maximum burst of branch of cost again, so up to burst has been divided, such as x1:x2:x3=1:2:2, Vm=1000, Vd=2200, so can must be less than (1/1+1/2+1/2)/1*1000=2000＜2200 with the speed of optimal strip, so divide the burst that is equivalent to 1000 speed to x1 earlier, remaining 1200 give x2 and x3 in the ratio of 2:2, promptly be equivalent to 600 speed, so the ratio of last burst becomes 1000:600:600; If Vd＜(1/x1+1/x2+...+1/xn)/MAX (1/x1,1/x2 ..., 1/xn)] * Vm, then certainly can be by optimal strip, just passable according to the ratio burst of 1/x1:1/x2:...:1/xn.
Connecting cost can obtain by two kinds of methods, and a kind of method is to obtain when route is set up.Will be established to the route of D such as A, it obtains the route of D by the method (this respect prior art is a lot) of route discovery, and includes route cost information, and network layer is told high level route cost separately, high-rise route cost as the cost that connects; Another kind method is to obtain by sending the test bind command, send the data of test simultaneously to D by many connections such as A, such as 10 frame data, and wait for 100ms separately, if the affirmation of the overtime D of confiscating just thinks that time delay is 200ms, otherwise calculate actual time delay, the average delay of A1 and A2 is 20ms and 10ms as a result, so cost is respectively 20 and 10.
In the reality, can connect from the N bar is arranged between A and the D, and M bar wherein has two kinds of processing methods available just can satisfy transmission rate and require the time, the first utilizes all to connect parallel transmission, and the method can obtain the fastest transmission rate; Another kind is a M bar of selecting wherein can satisfy transmission rate, and this M bar selects according to the minimum principle of cost, and this method can be reserved a part of resource.
Above embodiment comprises that to overcharge sender two transceivers are example, but the control principle of all working process is applicable to the sender equipment of overcharging that comprises any a plurality of transceivers.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (17)
1. data-bag interacting method, the transmitting apparatus of described packet or receiving equipment comprise at least two transceivers respectively, described data-bag interacting method comprises the steps:
A, transmitting apparatus judge whether the peak rate of a transceiver is higher than the target transmission rate of described packet, if then send described packet by a pair of transceiver that is connected with receiving equipment; Otherwise, execution in step B;
B, transmitting apparatus determine the transceiver number that is connected with receiving equipment, and judgement is divided into the peak rate whether each streaming rate behind X the packet fragmentation all is lower than single transceiver with packet, if, execution in step C then; Otherwise, determining to send described packet, described X is smaller or equal to the number of the transceiver that is connected with receiving equipment;
C, transmitting apparatus are divided into X packet fragmentation with packet, and the burst sequence number is set in the packet header of each packet fragmentation, the described packet fragmentation of parallel transmission on X transceiver, by receiving equipment each packet fragmentation of transceiver parallel receive by being connected with a described X transceiver, and according to the described burst sequence number described packet of recombinating.
2. the method for claim 1 is characterized in that, the equal in length of a described X packet fragmentation; Perhaps, the length of each packet fragmentation is inversely proportional to the right cost that is connected of transceiver of corresponding this packet fragmentation of transmitting-receiving.
3. method as claimed in claim 2 is characterized in that, described connection cost is determined according to following mode:
Determine according to the right route cost of transceiver that correspondence connects, described route cost transceiver to the process that connects in, both sides obtain from mutual routing iinformation respectively; Perhaps
According to the transceiver of correspondence between connect the answer delay of test command and/or reply loss situation and determine.
4. method as claimed in claim 2 is characterized in that, also comprises among the described step C: transmitting apparatus is selected a described X transceiver successively according to described connection cost order from small to large.
5. the method for claim 1 is characterized in that, each transceiver that correspondence is connected is to belonging in a plurality of individual domain networks respectively.
6. method as claimed in claim 5 is characterized in that, in described a plurality of individual domain networks, the transceiver of creating each individual domain network lays respectively at single transceiver equipment and/or overcharges on the sender equipment.
7. method as claimed in claim 6 is characterized in that, is positioned at a transceiver of overcharging on the sender equipment and creates one by one that the process of people territory network comprises the steps:
Overcharge this transceiver of sender device start and create individual domain network;
This transceiver selects working channel to carry out work, and definite individual domain network address;
Overcharge the network address of this transceiver of sender equipment records.
8. method as claimed in claim 7 is characterized in that, in described transmitting apparatus and the receiving equipment, each to the transceiver that correspondence connects to realizing the process that connects is:
One side creates people territory network one by one, and the opposing party realizes connecting after adding this individual domain network; Perhaps the transceiver on other equipment is created people territory network one by one, and both sides realize connecting after joining this individual domain network respectively; Then
Both sides' Internet address and routing iinformation, and preserve the routing iinformation of this transceiver separately.
9. method as claimed in claim 8 is characterized in that, is positioned at when overcharging on the sender equipment when creating one by one the transceiver of people territory network, and the process that other transceivers add this individual domain network comprises the steps:
The side's of adding transceiver adds to the transceiver request of establishment side after scanning this individual domain network on the working channel of establishment side's transceiver;
The side's of establishment transceiver is overcharged distribution network address, sender equipment approval back and is sent to the transceiver of request adding through the place.
10. the method for claim 1, it is characterized in that, the corresponding respectively a plurality of transceivers that connect are to belonging to people territory network one by one, and this individual domain network is set up by the sender equipment of overcharging that comprises two transceivers at least, and the process of foundation comprises the steps:
Overcharge the sender device start and set up individual domain network, each transceiver selects a working channel to carry out work respectively;
Overcharge sender equipment and determine the network address of this individual domain network.
11. the method for claim 1 is characterized in that, in described transmitting apparatus and the receiving equipment, each to the transceiver that correspondence connects to realizing the process that connects is:
Wherein each creates people territory network one by one to the right side of transceiver that correspondence connects, and each transceiver of the opposing party adds this individual domain network and a corresponding transceiver that connects establishment side respectively; Perhaps, other are overcharged sender equipment and create people territory network one by one, and each each right transceiver of transceiver that correspondence is connected adds this individual domain network respectively and is connected respectively on the transceiver of establishment side; Then
Each transceiver that correspondence is connected is to Internet address and routing iinformation, and by described transceiver the place overcharged that sender is unified preserves all routing iinformations.
12. method as claimed in claim 11 is characterized in that, adds when overcharging the individual domain network that sender equipment created when overcharging sender equipment, specifically comprises the steps:
The side's of adding transceiver scans this individual domain network respectively on the channel of each side's of establishment transceiver work, and adds to the transceiver request of the establishment side of correspondence respectively;
The side's of establishment transceiver is respectively the transceiver that transceiver distribution network address, adding side and the request of sending to add after the approval of sender equipment is overcharged at the place.
13. as one of any described method of claim 8-12, it is characterized in that, overcharge the individual domain network that each transceiver on the sender equipment independently selects to leave current adding.
14., it is characterized in that transmitting apparatus is determined the number of the transceiver of connection receiving equipment according to all routing iinformations of this locality as claim 8 or 11 described methods.
15. the method for claim 1 is characterized in that, also is provided with segmental identification information and burst sum in the packet header of described packet fragmentation.
16. a personal field network communication apparatus is characterized in that, comprising:
The parallel a plurality of transceivers that are provided with, each transceiver comprises independently network control module and radio-frequency (RF) receiving and transmission module, perhaps each transceiver comprises independent radio-frequency (RF) receiving and transmission module, and a shared network control module;
Central Control Module, be used to judge whether the peak rate of a transceiver is higher than the target transmission rate of packet, if the peak rate of a transceiver is higher than the target transmission rate of packet, then send described packet by a pair of transceiver that is connected with receiving equipment; If the peak rate of a transceiver is not higher than the target transmission rate of packet, then definite transceiver number that is connected with receiving equipment, and judge packet is divided into the peak rate whether each streaming rate behind X the packet fragmentation all is lower than single transceiver, if, then packet is divided into X packet fragmentation, and the burst sequence number is set in the packet header of each packet fragmentation, the described packet fragmentation of parallel transmission on X transceiver, by receiving equipment each packet fragmentation of transceiver parallel receive by being connected with a described X transceiver, and according to the described burst sequence number described packet of recombinating, otherwise, determine to send described packet, described X is smaller or equal to the number of the transceiver that is connected with receiving equipment.
17. equipment as claimed in claim 16 is characterized in that, described radio-frequency (RF) receiving and transmission module comprises: baseband processing unit, RF processing unit and antenna.
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| CN1346219A (en) * | 2000-09-29 | 2002-04-24 | 华为技术有限公司 | Base station transmitting/receiving machine for global mobile communication system |
| US20030081582A1 (en) * | 2001-10-25 | 2003-05-01 | Nikhil Jain | Aggregating multiple wireless communication channels for high data rate transfers |
| CN1606857A (en) * | 2001-10-25 | 2005-04-13 | 高通股份有限公司 | Method and system for transferring ip packets by aggregating multiple wireless communication channels for high data rate transfers |
| CN1226846C (en) * | 2001-12-27 | 2005-11-09 | 北京润光泰力科技发展有限公司 | Method using multiplex channel to implement transmission of one line of network data |
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| CN102938730A (en) * | 2012-10-26 | 2013-02-20 | 青岛海信网络科技股份有限公司 | Traffic signal control system and traffic signal transmission device and method |
| CN102938730B (en) * | 2012-10-26 | 2016-04-06 | 青岛海信网络科技股份有限公司 | Traffic signal control system, traffic signal transmission device and method |
| CN107846709A (en) * | 2017-09-29 | 2018-03-27 | 深圳市亿兆互联技术有限公司 | A kind of radio communication device and wireless communications method based on LoRa |
| CN108924205A (en) * | 2018-06-25 | 2018-11-30 | 北京旷视科技有限公司 | Data transmission method, device, electronic equipment, gateway adapter |
| CN108924205B (en) * | 2018-06-25 | 2022-09-06 | 北京旷视科技有限公司 | Data transmission method and device, electronic equipment and gatekeeper adapter |
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