CN101742473A - Data transmission method - Google Patents
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- CN101742473A CN101742473A CN200810175349A CN200810175349A CN101742473A CN 101742473 A CN101742473 A CN 101742473A CN 200810175349 A CN200810175349 A CN 200810175349A CN 200810175349 A CN200810175349 A CN 200810175349A CN 101742473 A CN101742473 A CN 101742473A
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Abstract
The invention provides a data transmission method, which is applied to the local forwarding mode. The data transmission method comprises that: a relay station allocates resources for a sending terminal according to a resource application received from the sending terminal; the relay station establishes connection according to a connection establishing request message received from the sending terminal, wherein the connection establishing request message carries a terminal identifier of a receiving terminal; and the relay station sends data from the sending terminal to the receiving terminal on the connection. The data transmission method solves the problem that the relay station cannot realize local forwarding of the data because the relay station does not have addressing function in the prior art, reduces data transmission paths, and reduces the data transmission delay and air interface expense.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of data transmission method.
Background technology
Usually, wireless communication system uses electromagnetic wave and the fixing or wireless communication terminal that moves (for example, mobile radiotelephone or with the notebook computer of wireless communication card etc. all can abbreviate terminal as) to communicate.In general, terminal all is positioned within the wireless coverage of system, and the wave frequency of distributing to these wireless devices is divided into a plurality of carrier frequencies as radio communication channel.Wireless communication system utilizes the specific radio channel to provide wireless coverage in certain geographic range by the base station, and this geographic range is called the sub-district.Usually, in theory, the base station should be positioned at the central authorities of sub-district.
In order to enlarge system ovelay range or expanding system capacity, one or more relay station can be arranged between the base station and terminal of supporting multi-hop relay (the following wireless communication system that will comprise relay station abbreviates system as).Relay station can be used for the signal of relay base station to terminal (descending) or terminal to base station (up).Adopt after the relay station, can effectively improve the communications link signals transmission quality, thereby reach the purpose that enlarges system ovelay range or increase power system capacity.
Terminal is jumped by one or the communication path of multi-hop relay station access base station is called relay route.Be called the access relay station with the relay station that terminal directly links to each other.The communication link that inserts relay station and terminal is called access link.On relay route, inserting relay station can communicate by other relay station and base station.On relay route, between the relay station and the communication link between relay station and the base station be called repeated link.Relay station can be fixing, and roaming is perhaps moved.
The wireless communications method that comprises the system of relaying comprises uplink and downlink.The up source address that includes only of the user data that relay station can be resolved, the descending destination address that includes only.Usually, the destination address of resolving upstream data is to be finished by the agreement of procotol (Internet protocol the abbreviates IP as) layer of base station or IAD (Acess Gateway abbreviates AGW as).Particularly, the network element of being responsible for the parsing addressing parses the destination address of IP layer from up user data, again this destination address is mapped to the user data address that relay station can discern and inserts descending user data, like this, relay station receives that descending user data package just can be forwarded to receiving terminal.
Under the nearer situation of the transmission range that sends terminal and receiving terminal, can use local (local forwarding) method transmission data of transmitting, promptly, the data that send the terminal transmission can not arrive base station or IAD, but transmit upstream to relay station, downlink to receiving terminal by relay station again, the transfer of data under this local forward mode has reduced data transfer path, has reduced transfer of data time-delay and empty overhead.But, because present relay station does not have addressing function, that is, do not comprise the destination address of these data in the user data that relay station can be resolved, just can't realize also that therefore this locality of data is transmitted.
Summary of the invention
The problem of transmitting at this locality that can't realize data owing to relay station does not have addressing function that exists in the prior art proposes the present invention, and the present invention aims to provide a kind of data transmission method, to address the above problem.
According to an aspect of the present invention, provide a kind of data transmission method, be applied to local forward mode, this method comprises: relay station is according to receiving from the resource bid that sends terminal to sending the terminal distribution resource; Relay station is set up request message according to reception from the connection that sends terminal and is connected, and wherein, connects and sets up the terminal iidentification that carries receiving terminal in the request message; The data from sending terminal that relay station will receive on connecting send to receiving terminal.
According to another aspect of the invention, also provide a kind of data transmission method, be applied to local forward mode, this method comprises: relay station is according to receiving from the resource bid that sends terminal to sending the terminal distribution resource; Relay station receives from the connection that sends terminal and sets up request message, and for sending the up connection of terminal distribution, wherein, up being connected to sends being connected between terminal and the relay station, connects to set up to carry in the request message that to be used to indicate up connection be to be used for the local sign of transmitting; Relay station receives in up connection from the data that send terminal, and wherein, data carry has the terminal iidentification of receiving terminal; Relay station sends the data to receiving terminal according to the terminal iidentification of receiving terminal.
By means of technique scheme one of at least, the present invention preserves the end message of neighbours' terminal in this locality by each terminal in local forward mode, make terminal before sending data, the terminal iidentification of receiving terminal can be sent to relay station or the terminal iidentification of receiving terminal is carried at and send to relay station in the data, and then relay station is realized this locality forwarding of data according to the terminal iidentification of receiving terminal, overcome the problem that can't realize this locality forwarding of data because relay station does not have addressing function of the prior art, reduce data transfer path, reduced transfer of data time-delay and empty overhead.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the data transmission method of the embodiment of the invention one;
Fig. 2 is the particular flow sheet according to the data transmission method of the embodiment of the invention one;
Fig. 3 is another particular flow sheet according to the data transmission method of the embodiment of the invention one;
Fig. 4 is the flow chart according to the data transmission method of the embodiment of the invention two;
Fig. 5 is the particular flow sheet according to the data transmission method of the embodiment of the invention two;
Fig. 6 is another particular flow sheet according to the data transmission method of the embodiment of the invention two.
Embodiment
Functional overview
Owing to relay station of the prior art does not have this locality forwarding that addressing function causes realizing data, based on this, in the technical scheme of the embodiment of the invention, by each terminal in the local forward mode is preserved the end message of neighbours' terminal in this locality, make sending terminal can be earlier before the transmission data send to relay station with the terminal iidentification of receiving terminal or the terminal iidentification of receiving terminal is carried at and send to relay station in the data, relay station just can send the data to receiving terminal according to the terminal iidentification of receiving terminal like this, realize this locality forwarding of data, thereby reduced data transfer path, reduce transfer of data time-delay and empty overhead, preferably, the data transmission method that provides of the embodiment of the invention can be applied to the base station and damaged in the urgent scene that only has relay station.Above-mentioned neighbours' terminal can be and send the terminal that terminal inserts same relay station, also can be and sends that terminal inserts different relay stations but the terminal that can use local forward mode.
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.Need to prove that if do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.
Embodiment one
In an embodiment of the present invention, provide a kind of data transmission method, be applied to local forward mode, Fig. 1 is the flow chart according to the data transmission method of the embodiment of the invention, as shown in Figure 1, comprises step S102-step S106.
Base station or relay station with the end message of neighbours' terminal of terminal periodically or aperiodicity send to terminal, end message comprises: terminal iidentification can also comprise: the Media Access Control Address of neighbours' terminal, application layer address (for example, internet protocol address, that is IP address) etc.Like this, terminal just can be preserved the end message of all neighbours' terminals in this locality.
In specific implementation process, the end message of above-mentioned neighbours' terminal can be that base station or relay station initiatively send to terminal, also can be that base station or relay station send in response to the request of terminal.Terminal is kept at this locality after receiving the end message of neighbours' terminal, and sends and feed back to base station or relay station, is under the situation about taking defeat at feedback information, and base station or relay station resend this end message.Next, step S102-step S106 is described in detail.
Step S102, relay station is according to receiving from the resource bid that sends terminal to sending the terminal distribution resource.In specific implementation process, can carry the identification information that the resource that is used to indicate resource bid to apply for is used for local forward mode in the resource bid.
Particularly, when the transmission terminal need send data to certain receiving terminal, find to have in this locality the end message of this receiving terminal, that is, this receiving terminal is neighbours' terminal, represents that then the notebook data transmission can realize with local forward mode.Send terminal the time, carry a sign, be used to represent that the resource of this application is to be used for local forward mode to relay station application resource.
After receiving the resource bid that sends terminal, be under the centralized scheduling pattern in system, relay station sends to the base station with this resource bid, gives to send the terminal distribution ascending resource under the control of base station; In system is under the distributed scheduling pattern, and relay station is dispatched local resource voluntarily and given transmission terminal distribution ascending resource.This ascending resource carries a sign, and being used to indicate this ascending resource is to be used for local forward mode, and this sign can be preset time frequency resource and/or predetermined identifier (or connection identifier (CID).
Certainly, send terminal and in the resource bid that relay station sends, also can not carry the identification information that the resource that is used to indicate resource bid to apply for is used for local forward mode, like this, in system is under centralized scheduling pattern or the distributed scheduling pattern, and it is common ascending resource of the prior art that base station or relay station are given the ascending resource that sends terminal distribution.
Step S104, relay station is set up request message according to reception from the connection that sends terminal and is connected, and wherein, connects and sets up the terminal iidentification that carries receiving terminal in the request message.Particularly, sending terminal is sent as the connection that this data transfer connects to relay station and sets up request message.
In concrete implementation process, send terminal and can comprise to the connection of relay station application: end-to-end connection is connected with cascade.Wherein, end-to-end being connected to sends the connection of terminal to receiving terminal, and cascade is connected to and sends the connection of terminal to relay station.In an embodiment of the present invention, send terminal and can apply for that also cascade connects to the end-to-end connection of relay station application.
If send terminal to the end-to-end connection of relay station application, then relay station has obtained after the terminal iidentification of receiving terminal, just can set up end-to-end the connection.In specific implementation process, if receiving terminal is the subordinate station of relay station, promptly, sending terminal is connected with this relay station with receiving terminal, relay station is after getting access to the terminal iidentification of receiving terminal, just can set up data transfer path end to end voluntarily, and with this end to end the information of data transfer path be notified to and send terminal and receiving terminal.If receiving terminal is not the subordinate station of relay station, promptly, also there is intermediate repeater station between receiving terminal and the relay station, then relay station is to the access path of base station application foundation with intermediate repeater station, after this path is set up, the base station is provided with end-to-end data transfer path according to the terminal iidentification of the receiving terminal that relay station obtains, and the information of data transfer path is notified to relay station, intermediate repeater station, transmission terminal and receiving terminal.Like this, send terminal and just can data be sent according to the information of data transfer path, the information that relay station or intermediate relay stand in after the data that receive the transmission terminal according to the data transfer path of this locality just can send to receiving terminal with data.
Wherein, comprise connection identifier (CID, the terminal iidentification that sends terminal, the sign of intermediate repeater station, the terminal iidentification of receiving terminal in the information of data transfer path.Above-mentioned connection identifier (CID can be the topology information of end-to-end data transfer path.
If sending terminal connects to relay station application cascade, then send terminal and set up the terminal iidentification that can carry or not carry receiving terminal in the request message in connection, relay station receives cascade and connects and to set up request message, just can be transmission terminal connect (up connection).
The data from sending terminal that step S106, relay station will receive in the connection of setting up send to receiving terminal.Particularly, the terminal iidentification according to receiving terminal is provided with data transfer path; Send to receiving terminal according to the in the future spontaneous data of making arrangements for his funeral end of the data transfer path that is provided with.
Be example with the relay station of centralized control and the relay station of distributed control respectively below, the specific implementation process of the said method that the embodiment of the invention is provided is described in detail.Wherein, Fig. 2 is the particular flow sheet that the relay station of the centralized control of employing carries out transfer of data, and Fig. 3 carries out the particular flow sheet of transfer of data for the relay station that adopts distributed control.In Fig. 2 and Fig. 3, send terminal and receiving terminal and insert a base station by same relay station, all be Centralized Control System, promptly all control signalings are all produced by the base station.
As shown in Figure 2, a kind of implementation of the data transmission method that provides of the embodiment of the invention mainly may further comprise the steps (step 201-step 210):
Step 201, base station send the neighbor information of terminal to relay station;
Step 202, relay station sends to terminal (promptly sending terminal) with the neighbor information that receives;
Step 203 sends and feeds back to relay station after terminal receives neighbor information;
Step 204, receive the feedback that sends terminal after, relay station feeds back to the base station;
Step 205, when the transmission terminal need send data, find local information of having preserved receiving terminal, that is to say that receiving terminal is the neighbours' terminal that sends terminal, can carry out transfer of data with local forward mode, based on this, send terminal to relay station application resource, wherein, carry a sign in application, being used to indicate the resource of application is to be used for local forward mode;
Step 206 because this relay station is the relay station of centralized control, need be wanted scheduling resource by the base station, and therefore, relay station is transmitted the resource bid that receives to the base station;
Step 207, base station are used in the resource of local forward mode to the relay station branch;
Step 208, the resource allocation that is used for local forward mode that relay station will receive are given and are sent terminal;
Step 209 sends terminal and send the data of carrying out local forward mode on the resource of distributing;
Step 210, relay station transfer data to receiving terminal after receiving data.
As shown in Figure 3, utilize in the said method that the relay station of distributed control realizes that the embodiment of the invention provides, wherein, step 301-step 305 is identical with step 201-step 205 among Fig. 2, different with Fig. 2 is, after step 305, can't help the base station to the relay station Resources allocation, directly give to send the terminal distribution resource by relay station, all the other flow processs are identical, that is, step 306-step 308 is identical with step 208-step 210 among Fig. 2, repeats no more here.
Preferably, local forward mode is applied to adopt the data routing method of cascade in the wireless communication system of IEEE802.16m definition.Particularly, the implementation of the data routing method of employing cascade is as follows:
When the transmission terminal need send data to neighbours' terminal, at first, distribute a up this locality to transmit to the relay station request and connect, this connection originates in the transmission terminal, ends at relay station, and corresponding to a QoS parameter collection.Wherein, the terminal iidentification that comprises receiving terminal in the request message is set up in connection.
Relay station receive to send the connection of terminal and sets up request message, is not oneself subordinate terminal if connect the terminal iidentification of setting up the receiving terminal that comprises in the request message, applies for setting up link to each other with the receiving terminal path of relay station of an arrival to the base station.After the path was set up, the base station was notified to all intermediate relay websites in the path and relay station, transmission terminal, receiving terminal with routing information.Wherein, comprise the terminal iidentification that sends terminal in the routing information, intermediate relay site identity, the terminal iidentification of receiving terminal.The base station is to set up a local forwarding connection between every jumping relay station simultaneously to be used for carrying two local datas forwardings between the relay station, and this connects corresponding to a QoS parameter collection.
Relay station or intermediate relay stand in and receive after the data, just can data be sent to receiving terminal according to the routing information of preserving.
In concrete implementation process, send terminal and can send data to receiving terminal, can certainly send the packet that comprises a plurality of data to receiving terminal.
The data transmission method that provides according to the embodiment of the invention one, by end message in the local preservation of terminal neighbours terminal, and make relay station get access to the end message of neighbours' terminal, realized this locality forwarding of data, overcome the problem that can't realize this locality forwarding of data because relay station does not have addressing function of the prior art, reduce data transfer path, reduced transfer of data time-delay and empty overhead.
Embodiment two
In an embodiment of the present invention, another kind of data transmission method also is provided, be applied to local forward mode, this method is carried in the data that send to this receiving terminal by the terminal iidentification with receiving terminal, Fig. 4 is the flow chart according to the data transmission method of the embodiment of the invention, as shown in Figure 4, comprise step S402-step S406.
Similar with the foregoing description one, before carrying out step S402-step S408, base station or relay station also need the end message of neighbours' terminal is sent to terminal, thereby transmit this locality that can realize data.
Step S402, relay station is according to receiving from the resource bid that sends terminal to sending the terminal distribution resource.With embodiment one similarly, can carry the resource that is used to indicate resource bid to apply in this resource bid and be used for the identification information of local forward mode or be not carried on the identification information that resource that the indexed resource application applied for is used for local forward mode.In specific implementation process, this step is identical with above-mentioned steps S102, repeats no more here.
Step S404, relay station receive from the connection that sends terminal and set up request message, and for sending the up connection of terminal distribution, and wherein, up being connected to sends being connected between terminal and the relay station.What this step was different with above-mentioned steps S104 is, connects to set up the terminal iidentification that does not carry receiving terminal in the request message, but carries one other identification, and this sign is used to indicate to the up connection that sends terminal distribution and is used for local the forwarding.Therefore, relay station or base station set up the up connection that is used for local forwarding can only for this data transfer, i.e. this connection originates in the transmission terminal, ends at relay station.
Preferably, be under the distributed scheduling pattern in system, relay station has been given the transmission terminal distribution and has been used for after the local up connection of transmitting, and relay station is notified to the transmission terminal with the information of the data transfer path of this up connection.Similarly, be under the centralized scheduling pattern in system, the base station has been given the transmission terminal distribution and has been used for after the local up connection of transmitting, and the base station is notified to the information of the data transfer path of this up connection relay station and is notified to the transmission terminal via relay station.Like this, send terminal and just can send data according to the information of data transfer path.The information of the data transfer path here can comprise connection identifier (CID and send the terminal iidentification of terminal.
Step S406, relay station receive in up connection from the data that send terminal, and wherein, data carry has the terminal iidentification of receiving terminal.Different with embodiment one is, the data carry here the terminal iidentification of receiving terminal, like this, relay station is after getting access to the terminal iidentification of receiving terminal, relay station or base station set up descending connection just can for this data transfer.
Step S408, relay station sends the data to corresponding receiving terminal according to the terminal iidentification of receiving terminal.
As mentioned above, the end message of receiving terminal is carried at and sends to relay station in the data, that is to say, relay station need just can obtain the end message of receiving terminal after receiving data, therefore, data in the present embodiment are local to be transmitted, the preferably cascade connection of connection that relay station or base station are set up to transfer of data.
In step S408, if receiving terminal is the subordinate station of relay station, then relay station sends the data to receiving terminal according to the terminal iidentification of the receiving terminal that obtains; If when having other relay station between receiving terminal and the relay station, the base station according to relay station be fed back to relay station and other relay station connects, and the terminal iidentification of the receiving terminal that provides according to relay station is provided with data transfer path; Relay station sends the data to receiving terminal according to the information of data transfer path, wherein, the information of data transfer path comprise following one of at least: the sign of the intermediate repeater station of the terminal iidentification of connection identifier (CID, receiving terminal, the terminal iidentification that sends terminal, transfer of data process.
Be example to carry in the resource bid that the resource that is used to indicate resource bid to be applied for is used for the identification information of local forward mode and do not carry this identification information respectively below, the specific implementation process of the said method that the embodiment of the invention is provided is described in detail.Fig. 5 does not carry the particular flow sheet that above-mentioned identification information carries out transfer of data in the resource bid, and Fig. 6 is for carrying the particular flow sheet that above-mentioned identification information carries out transfer of data in the resource bid.In Fig. 5 and Fig. 6, send terminal and receiving terminal and insert a base station by same relay station, all be Centralized Control System, promptly all control signalings are all produced by the base station.
As shown in Figure 5, a kind of implementation of the data transmission method that provides of the embodiment of the invention mainly may further comprise the steps (step 501-step 514):
Step 501-step 504 is identical with step 201-step 204 in the foregoing description one, repeats no more here;
Step 505 sends terminal and sends resource bid to relay station, and this resource bid is common resources application of the prior art;
Step 506, relay station sends resource bid to the base station;
Step 507, base station are to the application of relay station feedback resources, for sending the terminal distribution ascending resource;
Step 508, relay station is distributed to the transmission terminal with the ascending resource of base station assigns;
Step 509 sends terminal and sends to connect to relay station and sets up request message, has carried wherein that to be used to indicate to the up connection that sends terminal distribution be to be used for the local sign of transmitting;
Step 510, relay station send to connect to the base station sets up request message;
Step 511, feed back to relay station the base station, is used for local up connection of transmitting for sending terminal distribution;
Step 512, relay station is distributed to the transmission terminal with the local up connection of transmitting that is used for of base station assigns;
Step 513 sends terminal and send data in the up connection that distributes, and wherein, has carried the terminal iidentification of receiving terminal in the data;
Step 514, relay station sends the data to receiving terminal according to the terminal iidentification of the receiving terminal of data carry.
As shown in Figure 6, utilize and carry in the resource bid in the said method that above-mentioned identification information realizes that the embodiment of the invention provides, wherein, step 601-step 604 is identical with step 501-step 504 among Fig. 5, different with Fig. 5 is, step 605-step 608, owing to carried identification information in the resource bid, then the base station is to be used for the local resource of transmitting to the resource that sends terminal distribution, all the other flow processs are identical, that is, step 609-step 614 is identical with step 509-step 514 among Fig. 5, repeats no more here.
In specific implementation process, send terminal and can send data, also can send the packet that comprises a plurality of data, these a plurality of data can be to send to same receiving terminal, also can be to send to different terminals.Below a plurality of data are sent to different terminals situation be described in detail.
Send terminal a plurality of data encapsulation that send to different terminals are become packet, carry the end message of receiving terminal in each data, in the packet header of packet, carry the local connection identifier of transmitting, for example, when the transmission terminal sent data in the up connection that relay station distributes, the connection identifier that carry in the packet header of packet just was used for the designation data bag from sending the path of terminal to relay station.Relay station is resolved after receiving packet, obtains the end message of the receiving terminal that carries in each data, and each data map is sent to receiving terminal to corresponding connection.
If receiving terminal is the subordinate station of relay station, then relay station can directly send to receiving terminal with each data, there are being a plurality of data to send under the situation of receiving terminal, these a plurality of data encapsulation can be become packet, wherein, with above-mentioned similar, in packet header, carry connection identifier (CID at the packet that sends terminal.
If receiving terminal is not the subordinate station of relay station, as mentioned above, the base station is provided with the path to transfer of data, and routing information is sent to all relay stations in the path.The routing information that relay station or intermediate repeater station are preserved according to this locality sends the data to receiving terminal, can be the transmission of individual data, also can be the transmission of packet, with above-mentioned similar at the packet that sends terminal, carries connection identifier (CID in packet header.
For example, when the transmission terminal has a plurality of data to send to neighbours' terminal, in each data (for example, MAC PDU) carries the terminal address information (MS ID) of receiving terminal in, then, a plurality of data of issuing identical or different neighbours' terminal are carried out cascade, (MAC Header) encapsulates by a cascade packet header, comprise the up local connection identifier (CID of transmitting among the cascade MAC Header, above-mentioned a plurality of data are corresponding to an identical QoS parameter collection.
After intermediate relay stands in the upstream data bag that receives terminal,, obtain the address of receiving terminal by resolving the MS ID among each MACPDU.The routing information of preserving based on this locality is mapped to each MAC PDU in the connection that has suitable QoS parameter collection accordingly and sends to receiving terminal.Wherein, relay station relaying can be given identical downstream relay station from different terminals but have the MAC PDU cascade again of identical QoS parameter collection, and connection identifier (CID is encapsulated in packet header of packet of cascade, wherein, connection identifier (CID is used to indicate path between this locality and the downstream relay station.
The relay station that links to each other with receiving terminal receives after the MAC PDU that sends to receiving terminal, and MAC PDU is sent to receiving terminal with other non-local MAC PDU that transmit.
In sum, preserve the end message of neighbours' terminal in this locality by each terminal in local forward mode, make terminal before sending data, the terminal iidentification of receiving terminal can be sent to relay station or the terminal iidentification of receiving terminal is carried at and send to relay station in the data, and then relay station is realized this locality forwarding of data according to the terminal iidentification of receiving terminal, overcome the problem that can't realize this locality forwarding of data because relay station does not have addressing function of the prior art, reduce data transfer path, reduced transfer of data time-delay and empty overhead.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. a data transmission method is applied to local forward mode, it is characterized in that, comprising:
Relay station is described transmission terminal distribution resource according to the resource bid that receives from sending terminal;
Described relay station is set up request message according to reception from the connection of described transmission terminal and is connected, and wherein, the terminal iidentification that carries receiving terminal in the request message is set up in described connection;
The data from described transmission terminal that described relay station will receive in described connection send to described receiving terminal.
2. method according to claim 1 is characterized in that, before described relay station was described transmission terminal distribution resource according to reception from the resource bid that sends terminal, described method also comprised:
Described transmission terminal is preserved the end message of neighbours' terminal in this locality;
Wherein, described neighbours' terminal comprises: with described transmission terminal insert same relay station terminal, insert different relay stations with described transmission terminal but can use the terminal of described local forward mode;
Described end message comprise following one of at least: the terminal iidentification of the Media Access Control Address of terminal, application layer address, described terminal.
3. method according to claim 1, described relay station is that described transmission terminal distribution resource comprises according to the resource bid that receives from sending terminal:
Described relay station is described transmission terminal distribution ascending resource, and notifies described transmission terminal; Perhaps
Described relay station sends to the base station with described resource bid, is described transmission terminal distribution ascending resource under the control of described base station, and notifies described transmission terminal.
4. method according to claim 1 is characterized in that, described relay station is set up request message from the connection of described transmission terminal and connected and comprise according to receiving:
Described relay station is provided with data transfer path end to end and the information of described data transfer path is notified to described transmission terminal and described receiving terminal according to the terminal iidentification of described receiving terminal.
5. method according to claim 1 is characterized in that, described relay station is set up request message from the connection of described transmission terminal and connected and comprise according to receiving:
The terminal iidentification of the described receiving terminal that described base station receives according to described relay station is provided with data transfer path end to end and the information of described data transfer path is notified to described relay station, described transmission terminal and described receiving terminal.
6. method according to claim 5 is characterized in that, has in described data transfer path under the situation of other relay stations, also comprises: the information of described data transfer path is sent to intermediate repeater station in the described data transfer path,
Wherein, the information of described data transfer path comprise following one of at least: the sign of the terminal iidentification of the terminal iidentification of connection identifier (CID, described receiving terminal, described transmission terminal, the intermediate repeater station of transfer of data process.
7. method according to claim 1 is characterized in that, carries the identification information that the resource that is used to indicate described resource bid to apply for is used for local forward mode in the described resource bid.
8. method according to claim 7, it is characterized in that, the described ascending resource of distributing to described transmission terminal carries: be used to indicate described ascending resource to be used for the preset time frequency resource of local forward mode, and/or, indicate described ascending resource to be used for the predetermined identifier of local forward mode.
9. a data transmission method is applied to local forward mode, it is characterized in that, comprising:
Relay station is described transmission terminal distribution resource according to the resource bid that receives from sending terminal;
Described relay station receives and sets up request message from the connection of described transmission terminal, and be the up connection of described transmission terminal distribution, wherein, described up being connected to being connected between described transmission terminal and the described relay station, described connection are set up and are carried in the request message that to be used to indicate described up connection be to be used for the local sign of transmitting;
Described relay station receives the data from described transmission terminal in described up connection, wherein, described data carry has the terminal iidentification of receiving terminal;
Described relay station sends to described receiving terminal according to the terminal iidentification of described receiving terminal with described data.
10. method according to claim 9 is characterized in that, before described relay station was described transmission terminal distribution resource according to reception from the resource bid that sends terminal, described method also comprised:
Described transmission terminal is preserved the end message of neighbours' terminal in this locality;
Wherein, described neighbours' terminal comprises: with described transmission terminal insert same relay station terminal, insert different relay stations with described transmission terminal but can use the terminal of described local forward mode;
Described end message comprise following one of at least: the terminal iidentification of the Media Access Control Address of terminal, application layer address, described terminal.
11. method according to claim 9, described relay station is that described transmission terminal distribution resource comprises according to the resource bid that receives from sending terminal:
Described relay station is described transmission terminal distribution ascending resource, and notifies described transmission terminal; Perhaps
Described relay station sends to the base station with described resource bid, is described transmission terminal distribution ascending resource under the control of described base station, and notifies described transmission terminal;
12. method according to claim 9 is characterized in that, described relay station receives and sets up request message from the connection of described transmission terminal, and comprises for the up connection of described transmission terminal distribution:
Described relay station is set up request message according to described connection and local transmitting uplink data path of transmitting is set and the information in described transmitting uplink data path is notified to the transmission terminal,
Wherein, the information in described transmitting uplink data path comprise following one of at least: the terminal iidentification of connection identifier (CID, described transmission terminal.
13. method according to claim 9 is characterized in that, described relay station receives and sets up request message from the connection of described transmission terminal, and comprises for the up connection of described transmission terminal distribution:
The described connection that described base station receives according to described relay station is set up request message and local transmitting uplink data path of transmitting is set and the information in described transmitting uplink data path is notified to described relay station and described transmission terminal;
Wherein, the information in described transmitting uplink data path comprise following one of at least: the terminal iidentification of connection identifier (CID, described transmission terminal.
14., it is characterized in that described relay station sends to receiving terminal according to the terminal iidentification of described receiving terminal with described data and comprises according to claim 12 or 13 described methods:
At described receiving terminal is the subordinate of described relay station when standing, and described relay station sends to described receiving terminal according to the terminal iidentification of the receiving terminal that obtains with described data;
When between described receiving terminal and described relay station, having other relay station, described base station connects according to the described relay station of being fed back to of described relay station and described other relay station, and the terminal iidentification of the described receiving terminal that provides according to described relay station is provided with data transfer path; Described relay station sends to described receiving terminal according to the information of described data transfer path with described data;
Wherein, the information of described data transfer path comprise following one of at least: the sign of the terminal iidentification of the terminal iidentification of connection identifier (CID, described receiving terminal, described transmission terminal, the intermediate repeater station of transfer of data process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810175349A CN101742473A (en) | 2008-11-06 | 2008-11-06 | Data transmission method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810175349A CN101742473A (en) | 2008-11-06 | 2008-11-06 | Data transmission method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011015116A1 (en) * | 2009-08-03 | 2011-02-10 | 华为技术有限公司 | Method and system for realizing data sharing and network side device |
| CN102724666A (en) * | 2011-03-31 | 2012-10-10 | 中国移动通信集团公司 | Terminal data relay method, device thereof and system thereof |
| WO2014183619A1 (en) * | 2013-05-13 | 2014-11-20 | 电信科学技术研究院 | Method and apparatus for implementing adjacent communication |
| CN109246650A (en) * | 2017-06-30 | 2019-01-18 | 中国电信股份有限公司 | Method and apparatus, relay, the truck traffic system of truck traffic |
-
2008
- 2008-11-06 CN CN200810175349A patent/CN101742473A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011015116A1 (en) * | 2009-08-03 | 2011-02-10 | 华为技术有限公司 | Method and system for realizing data sharing and network side device |
| CN102724666A (en) * | 2011-03-31 | 2012-10-10 | 中国移动通信集团公司 | Terminal data relay method, device thereof and system thereof |
| CN102724666B (en) * | 2011-03-31 | 2015-07-01 | 中国移动通信集团公司 | Terminal data relay method, device thereof and system thereof |
| WO2014183619A1 (en) * | 2013-05-13 | 2014-11-20 | 电信科学技术研究院 | Method and apparatus for implementing adjacent communication |
| CN109246650A (en) * | 2017-06-30 | 2019-01-18 | 中国电信股份有限公司 | Method and apparatus, relay, the truck traffic system of truck traffic |
| CN109246650B (en) * | 2017-06-30 | 2021-09-21 | 中国电信股份有限公司 | Vehicle-to-vehicle communication method and device, relay device and vehicle-to-vehicle communication system |
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