CN100426877C - Method of communication by bimode terminal - Google Patents
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- CN100426877C CN100426877C CNB2004100697680A CN200410069768A CN100426877C CN 100426877 C CN100426877 C CN 100426877C CN B2004100697680 A CNB2004100697680 A CN B2004100697680A CN 200410069768 A CN200410069768 A CN 200410069768A CN 100426877 C CN100426877 C CN 100426877C
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Abstract
The present invention discloses a method for double-module terminal communication. The method comprises the steps that a base station judge whether the traffic is a local traffic or not after receiving switch-in requirements from source mobile nodes. When the traffic is the local traffic, the present invention can execute the step B; otherwise, the present invention can execute the step C. The present invention has the step B that a base station indication source and purpose mobile nodes can be communicated via an automatic organizing mode, source mobile nodes can send self traffic data to the purpose mobile nodes via a direct method or a relay method, and then current process ends. The present invention has the step C that the base station indication source and the purpose mobile nodes can forward the traffic data via the base station, the source mobile nodes can send self traffic data to the base station via a direct method or a relay method, and the base station can send the traffic data to the purpose mobile nodes via a direct method or a relay method. The method of the present invention can improve systemic throughput and can optimize systemic performance.
Description
Technical field
The present invention relates to mobile communication technology, particularly relate to a kind of method of communication by bimode terminal.
Background technology
Mobile communications network generally is divided into two classes: based on the network of infrastructure and the network of foundation-free facility.Wherein, based on the network of infrastructure, as cellular mobile network, by means of fixing have the multi-section transceiver, and can be with the base station of full duplex mode work, and the wired backbone network system of volume transport greatly, realize that terminal is the communication between the travelling carriage; The network of foundation-free facility as mobile ad-hoc network (Ad Hoc Network), does not have infrastructure, and in network, the terminal that disposes specific protocol is directly or by other relaying mobile node to communicate between the mobile node.
At present, the cellular mobile communication technology based on infrastructure reaches its maturity.Because the base station of control mobile communications is distributed widely in each area in the cellular network, travelling carriage is easy to finish by the base station transmission of data.Therefore, utilize the data of the base station transmits terminal in the cellular network to become the most generally to adopt at present and the most a kind of communication mode of easy realization.But, after building up, cellular network is difficult for adjusting on a large scale, and can't adapt to load is the variation of number of users.Particularly, because network leak to cover or electric wave runs in communication process that building blocks and landform such as mountain valley, ubac, make to exist many base station radio signals to arrive in the cellular network or dead band, shadow region or deep fade zone that intensity is extremely weak, such as near the train way, in the elevator etc.The system that makes can't provide the transmission service to the travelling carriage in these zones, thereby has reduced the throughput of system, has reduced the performance of system.
The mobile ad-hoc network infrastructureless, only needing at terminal equipment is to dispose related protocol in the mobile node, such as, Routing Protocol and MAC agreement.Channel condition between a plurality of mobile nodes is better, and in the time of can satisfying professional transmission requirement, these a plurality of mobile nodes then can be formed self-organizing network automatically.Therefore, be convenient to very much carry out the adjustment of network after self-organizing network forms, can adapt to the variation of load better.The more important thing is that in self-organizing network, each mobile node all is equivalent to a router, can finish the function of finding and being maintained to other mobile node route.Can carry out directly " point-to-point " communication between two adjacent mobile nodes, then can pass through the News Search route between the nonneighbor node, packet is transmitted by other mobile node, be forwarded to destination node with " multi-hop mode ", and need not to transmit by the base station.Therefore, in self-organizing network, a mobile node can be found the neighboring mobile node that its wireless signal is enough to arrive with comparalive ease, has reduced the probability that is in dead band, shadow region or the deep fade zone, thereby make gulping down of system increase greatly, improved the performance of system as amount.
Yet owing to be subjected to technology or artificial factor, mobile ad-hoc network control at present is complicated, and it is extensive that its practical application is nothing like cellular network.And, self-organizing network is not easy to satisfy professional service quality (QoS) requirement, such as, the speech business very high to delay requirement, when the mobile node wide apart of two communications, its speech data must could arrive the recipient by a plurality of relaying mobile nodes, thereby will cause long time delay, can't satisfy the delay requirement of speech business at all.Therefore, the combination of honeycomb and self-organizing network is considered to a kind of development trend of following Radio Access Network.The performance advantage that it can collect cellular network and self-organizing network is an one, is expected to support following high data rate and multimedia service, for the user provides adaptive, access service flexibly.Yet existing research comprises that the option-opportunity driven multiple access among the 3GPP inserts (ODMA) agreement, the improvement in performance of the integrated various forms of honeycomb and self-organizing network all just being discussed and being brought, and do not relate to concrete problem of implementation.
Therefore, provide a kind of terminal that makes to be operated in method in cellular network or self-organizing network or honeycomb and the network that self-organizing network combines flexibly, become a problem demanding prompt solution.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of communication by bimode terminal, the performance of optimization system.
In order to achieve the above object, technical scheme of the present invention is achieved in that
A kind of method of communication by bimode terminal may further comprise the steps:
After A, base station receive the access request that the source mobile node sends, judge according to the sign that inserts the purpose mobile node that carries in the request whether this purpose mobile node is in self overlay area, and whether the channel condition between the source and destination mobile node satisfies this transmission requirement, if, judge that then this business is local professional, execution in step B, otherwise, execution in step C;
B, the base station judges whether this business is real time business, if real time business, base station allocated channel resource or path, and indication source and destination mobile node utilizes this channel appointed resource or path to communicate with the self-organizing form, the source mobile node then is sent to the purpose mobile node with the business datum of self, finish current flow process then, if not real time business, the channel resource that the utilization of base station indication source and destination mobile node is reserved communicates with the self-organizing form, the source mobile node then is sent to the purpose mobile node with the business datum of self, finishes current flow process then
C, base station indication source and destination mobile node are transmitted business datum by the base station, the source mobile node then is sent to the base station with the business datum of self with direct mode or trunking scheme, and the base station is sent to the purpose mobile node with this business datum with direct mode or trunking scheme again.
Described base station indication source and destination mobile node utilizes this channel appointed resource to communicate with the self-organizing form to comprise: base station indication source and destination mobile node utilizes this channel appointed resource to carry out the communication of point-to-point;
Described source mobile node then is sent to the purpose mobile node with self business datum and comprises: the source mobile node then utilizes this channel appointed resource that the business datum of self directly is sent to the purpose mobile node.
Described base station specified path, and indication source and destination mobile node utilizes the path of this appointment to communicate with the self-organizing form to comprise: the path of being made up of the relaying mobile node of this real time business delay requirement is determined to satisfy according to certain criteria in the base station, indicates the source and destination mobile node to utilize described path to communicate;
Described source mobile node then is sent to the purpose mobile node with self business datum and comprises: the source mobile node is sent to the purpose mobile node with the business datum of self by the relaying mobile node in the described path.
Described certain criteria comprises minimum overall pathloss or the shortest path.
When the channel resource that the utilization of base station indication source and destination mobile node is reserved communicated with the self-organizing form, described source mobile node then was sent to the purpose mobile node with self business datum and comprises:
The source mobile node is chosen route according to the Routing Protocol of self configuration, and by the relaying mobile node in the selected route own service data is sent to the purpose mobile node.
This method further comprises: when this business is not local business, the base station judges whether this business is real time business, if, base station indication source and destination mobile node is transmitted business datum by the base station, the source mobile node directly is sent to the base station with business datum, and the base station directly is sent to the purpose mobile node with this business datum again;
If not, the channel resource that the utilization of base station indication source and destination mobile node is reserved sends to the base station with business datum, the source mobile node is then chosen the route that arrives the base station according to the Routing Protocol that self disposes, and business datum being sent to the base station by the relaying mobile node in the selected route, the base station will be sent to the purpose mobile node from the business datum of source mobile node by the relaying mobile node in the selected route again.
This method further comprises: in this business is not local professional, and the described purpose mobile node wireless signal that is in the base station be difficult to effectively to arrive regional the time;
C1, base station judge whether receive the significant response signal that this purpose mobile node returns in setting-up time, if receive by broadcast channel broadcasts paging purpose mobile node, then carry out normal downlink transmission process, and process ends, if do not receive, execution in step C2 then;
The neighboring mobile node of broadcast channel broadcasts paging purpose mobile node is passed through in C2, base station;
After each neighboring mobile node of C3, purpose mobile node received the Radio Paging of base station, the request of will inserting respectively was sent to the base station:
C4, base station calculate respectively from the base station self to each neighboring mobile node again to the path loss of purpose mobile node, select the path of wherein loss minimum, and business datum be sent to the purpose mobile node by the neighboring mobile node in the selected path.
Among the step C4, described base station may further comprise the steps the step that business datum is sent to the purpose mobile node by the neighboring mobile node in the selected path:
C41, base station send to the neighboring mobile node of the purpose mobile node in the selected path with business datum, after this neighboring mobile node receives the business datum of sending the base station, send the demand signalling that carries self identification to the purpose mobile node;
After C42, purpose mobile node receive the demand signalling that this neighboring mobile node sends, reply signaling to this neighboring mobile node transmission, this neighboring mobile node receives that the purpose mobile node sends reply signaling after, the business information that this is professional sends to the purpose mobile node;
After C43, purpose mobile node receive the business information that this neighboring mobile node sends, send to this neighboring mobile node with carrying the assignment signalling that sends code word and time slot, this neighboring mobile node utilizes the code word and the time slot that are distributed in this assignment signalling that business datum is sent to the purpose mobile node after receiving the assignment signalling that the purpose mobile node sends.
Before described base station receives the access request step that the source mobile node sends, further comprise: the source mobile node sends to the base station by the access request that competition uplink random access channel will carry self identification;
When the base station receives the access request that the source mobile node sends, at first judge according to the sign of source mobile node whether it is legal, if legal, then continue to carry out described when this business is local business, the base station judges whether this business is the step of real time business, otherwise, jump out this flow process.
After described base station receives the access request step that the source mobile node sends, further comprise: the request of will inserting sends to the source mobile node of base station and monitors broadcast channel;
Described base station indication source and destination mobile node utilizes this channel appointed resource or path to communicate to comprise: the base station utilizes this channel appointed resource or path to communicate by broadcast channel indication source and destination mobile node, the source mobile node listens to this indication from broadcast channel after, send business datum.
As seen, the method for the present invention's proposition has the following advantages:
1, in the present invention, the base station is that the mobile node type of service of carrying out and the distance between the mobile node and channel condition decide the communication pattern of mobile node according to terminal, thereby has satisfied the qos requirement of different business, has optimized the performance of system.
2, in the present invention, when mobile node was in shadow region, deep fade zone or the dead band, the base station came relaying to transmit business datum by the neighboring mobile node of this mobile node, guaranteed professional transmission.Therefore, reduce the probability of professional bust this, improved the throughput of system widely.
3, in the present invention, when carrying out the part business, mobile node communicates with the self-organizing network pattern, thereby under the prerequisite that guarantees professional transmission the base station is discharged from a large amount of forwarding work, has reduced the load of base station.
4, if communicate by mobile ad-hoc network separately, then can there be the control difficulty, can't satisfy the shortcoming of QoS requirement, therefore, the present invention combines the cellular mobile network of present technology maturation and extensive use and mobile ad-hoc network and realizes communicating by letter, not only can utilize the base station in the cellular network to realize control flexibly, satisfy professional qos requirement, and, can also utilize the advantage of self-organizing network, transmit business datum such as mobile node by a plurality of relaying mobile nodes and make that the system frequency extent for multiplexing is high, further optimized the performance of system.
Description of drawings
Fig. 1 is the schematic diagram that communicates in the bimodulus mode of mobile node in the present invention.
Fig. 2 is the flow chart that communicates under the bimodulus mode of mobile node in the present invention.
Fig. 3 is a schematic diagram of realizing downlink transfer when the purpose mobile node is in regional that the base station radio signal can't arrive in realizing embodiments of the invention.
Fig. 4 is a flow chart of realizing downlink transfer when the purpose mobile node is in regional that the base station radio signal can't arrive in realizing embodiments of the invention.
Fig. 5 a is the design sketch that the present invention improves throughput of system when number of users is 100.
Fig. 5 b is the design sketch that the present invention improves throughput of system when number of users is 200.
Fig. 5 c is the design sketch that the present invention improves throughput of system when number of users is 300.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with drawings and the specific embodiments.
The present invention utilizes the cellular network of present technology maturation and extensive use and combining of self-organizing network, and a kind of method that can terminal be communicated under the bimodulus mode according to business need is provided.Fig. 1 is the schematic diagram that communicates under the bimodulus mode of terminal in the present invention.Referring to Fig. 1, the terminal among the present invention is a dual-mode terminal, and promptly this terminal can be operated in mobile node in the self-organizing network again for being operated in cellular network.Mobile node communicates under the bimodulus mode and is meant, the business datum between the source and destination mobile node is transmitted by the base station, promptly communicates with the cellular network pattern; Perhaps, directly or by other relaying mobile node service data transmission, promptly communicate between the source and destination mobile node with the self-organizing network pattern; Perhaps, by other relaying mobile node and base station transmits business datum, promptly the mode that combines with self-organizing network and cellular network communicates between the source and destination mobile node.
Fig. 2 is the flow chart that communicates under the bimodulus mode of mobile node in the present invention.Referring to Fig. 2, in the present invention, the specific implementation process that mobile node communicates under the bimodulus mode may further comprise the steps:
Step 201: have the source mobile node of service request to send access demand signalling (RA_Req) to the base station by uplink random access channel RACH.
Here, the type of service of the sign (ID) of self, data to be sent, number of data packets to be sent and ID of purpose mobile node etc. have been comprised in the access demand signalling that the source mobile node sent.And the source mobile node can adopt traditional mode, promptly sends the access demand signalling by competition uplink random access channel RACH.
Step 202: authentication is carried out to the source mobile node after receiving the access demand signalling that the source mobile node sends in the base station, judges whether it is legal, if legal, then execution in step 203, if illegal, then refuse this source mobile node access network, and process ends.
Step 203: the base station allows source mobile node access network, and this source mobile node begins to monitor broadcast channel BCCH, waits for the strategy decision of sending the base station.
Step 204: the base station judges whether this business is local professional, if then execution in step 205, otherwise, execution in step 210.
Here, the base station judges whether this business is that local professional process is: the base station judges whether the source and destination mobile node all is in the overlay area of self, and whether channel condition between the source and destination mobile node such as channel width etc. can satisfy the requirement of this professional transmission.If these two conditions are all satisfied, then this business is thought for local professional in the base station, if there is arbitrary condition wherein not satisfy, then the base station thinks that this business is non local business.
Step 205: the base station judges according to the type of service that inserts the data to be sent of carrying in the demand signalling whether this business is real time business, if then execution in step 206, if not, then execution in step 208.
Here, real time business can be speech business, and non-real-time service can be common data service.
Step 206～step 207: base station allocated channel resource, indication source and destination mobile node utilizes this channel appointed resource to communicate with the self-organizing network pattern, and the source and destination mobile node then utilizes the specified channel in base station to carry out the direct communication of point-to-point with the self-organizing network pattern.
The specific implementation process here is: the strategy decision is made in the base station, be this professional allocated channel resource, comprise employed channel and bandwidth etc. thereof when the source and destination mobile node communicates, and specify the source and destination mobile node to utilize this channel appointed resource to carry out the direct communication of point-to-point with the self-organizing network pattern, the base station should be broadcasted in the downlink broadcast BCCH channel in the strategy decision then; The source mobile node listens to the strategy decision that the base station sends from broadcast channel BCCH after, by the specified channel in base station self business datum directly is sent to the purpose mobile node, until finishing this business.
Here, owing to be local real time business, therefore, the base station is a source and destination mobile node allocated channel resource, the direct communication that the source and destination mobile node utilizes this channel appointed resource to carry out point-to-point with the self-organizing network pattern then can significantly reduce propagation delay time, thereby satisfies the requirement of real time business.
Here, for saving transmitting power, the source and destination mobile node also can communicate in the multi-hop mode by other via node under the enabled condition of this real-time service transmission time delay.Correspondingly, the specific implementation process of step 206～step 207 then is: the strategy decision is made in the base station, promptly under the condition that this real time business time delay allows, according to certain criterion, such as the overall pathloss of minimum or the shortest path etc., choose the route between the source and destination mobile node, and the multi-hop mode of specifying the source and destination mobile node to carry out the self-organizing pattern according to selected route communicates by letter, the base station should be broadcasted in the downlink broadcast BCCH channel in the strategy decision then; The source mobile node listens to the strategy decision that the base station sends from broadcast channel BCCH after, by each relaying mobile node in the selected route in base station self business datum is sent to the purpose mobile node, until finishing this business.
Step 208～step 209: the channel resource that the utilization of base station indication source and destination mobile node is reserved communicates with the self-organizing network pattern, and the source and destination mobile node is then chosen route is carried out the multi-hop mode with the self-organizing network pattern by each via node in the selected route communication.
The specific implementation process here is: the strategy decision is made in the base station, and the channel resource of promptly indicating the utilization of source and destination mobile node to reserve communicates with the self-organizing network pattern, this strategy decision of broadcasting in the downlink broadcast BCCH channel then; The source mobile node listens to the strategy decision of base station transmission from broadcast channel after, choose route according to the Routing Protocol that self disposes, by each relaying mobile node in the selected route business datum is sent to the purpose mobile node then, until finishing this business.
Here, because non-real-time service does not have too high requirement to propagation delay time, therefore, base station indication source and destination mobile node communicates by the channel resource of reserving and gets final product.
Step 210: the base station judges according to the type of service that inserts the data to be sent of carrying in the demand signalling whether this business is real time business, if then execution in step 211, if not, then execution in step 213.
Step 211～step 212: base station indication source and destination mobile node is promptly transmitted business datum by the base station with the cellular network pattern, and the source and destination mobile node then directly communicates in the single-hop mode by the base station, promptly communicates with the cellular network pattern.
The specific implementation process here is: the strategy decision is made in the base station, promptly indicates the source and destination mobile node with the cellular network pattern, and promptly the pattern by base station forwarding business datum communicates, and this strategy decision is broadcasted in the base station in the downlink broadcast BCCH channel then; The source mobile node listens to the strategy decision that the base station sends from broadcast channel BCCH after, self business datum is directly sent to the base station, the base station directly is sent to the purpose mobile node with this business datum again, until finishing this business.
Here, owing to be non local real time business, if base station indication source and destination mobile node communicates with the self-organizing pattern, then the source and destination mobile node need carry out routing according to Routing Protocol, and the business datum of self could be sent to the recipient by a plurality of via nodes, thereby can cause bigger propagation delay time, can't satisfy the requirement of real time business propagation delay time.So the strategy decision that make the base station is to make the source and destination mobile node directly transmit business datum by base station self, to reduce transmission link, reduces propagation delay time, satisfies the requirement of this real time business.
Step 213～step 214: base station indication source and destination mobile node is transmitted business datum by base station and relaying mobile node, the source and destination mobile node then communicates in the multi-hop mode by base station and each relaying mobile node, and promptly the mode that combines with self-organizing network and cellular network communicates.
The specific implementation process here is: the strategy decision is made in the base station, promptly indicate channel resource that the utilization of source and destination mobile node reserves that the business datum of self is transmitted to the base station by the relaying mobile node, by the base station business datum is forwarded to the purpose mobile node by via node again, this strategy decision is broadcasted in the base station in the downlink broadcast BCCH channel then; The source mobile node listens to the strategy decision of base station from broadcast channel BCCH after, choose the route that arrives the base station according to the Routing Protocol that self disposes, business datum is transmitted to the base station by each relaying mobile node in the selected route, the base station is sent to the purpose mobile node with the business datum that receives by each the relaying mobile node in self selected route again, until finishing this business.
So far, the present invention has finished the process that mobile node is communicated under the bimodulus mode that self-organizing network combines with cellular network.
In the present invention, when mobile node is transmitted business datum by the base station, if the purpose mobile node is in the area that base station radio signals such as shade, deep fade zone or dead band can't arrive, the base station just can't be in the downlink transfer link be sent to business datum the purpose mobile node so.In order to address this problem, way of the present invention is: the neighboring mobile node of base station broadcast paging purpose mobile node, and after the response that the neighboring mobile node that receives the purpose mobile node is returned, select a neighboring mobile node as the relaying mobile node, then the relaying mobile node of business datum by this selection is sent to the purpose mobile node.
Below be to the present invention is directed to the embodiment that the purpose mobile node that is in shade, deep fade zone or the dead band provides downlink transfer.In this embodiment, the purpose mobile node that is in shade, deep fade zone or the dead band is mobile node C, and the base station knows that mobile node A and mobile node B are the neighboring mobile node of mobile node C.Here, why the base station can know that mobile node A and mobile node B are the neighboring mobile node of mobile node C, is because when initially setting up route, purpose mobile node C can broadcast its explore frame in broadcast channel BCCH; Mobile node A and mobile node B know it self is the adjacent node of mobile node C listen to the explore frame that mobile node C sends from broadcast channel BCCH after; Mobile node A and mobile node B then will be reported to the base station from the information as the adjacent node of mobile node C respectively, make the base station know that the neighboring mobile node of purpose mobile node C is mobile node A and mobile node B.
Fig. 3 is a schematic diagram of realizing downlink transfer when the purpose mobile node is in regional that the base station radio signal can't arrive in realizing embodiments of the invention.Fig. 4 is a flow chart of realizing downlink transfer when the purpose mobile node is in regional that the base station radio signal can't arrive in realizing embodiments of the invention.Referring to Fig. 3 and Fig. 4, in the present invention, the base station sends to business datum purpose mobile node C in the downlink transfer link specific implementation process may further comprise the steps:
Step 401: the base station is by broadcast channel BCCH Radio Paging purpose mobile node C, whether judgement receives the significant response signal that mobile node C returns in setting-up time, if receive, then carry out normal downlink transmission process, and process ends, if do not receive, then execution in step 402.
Here, if the base station does not receive the response signal that purpose mobile node C returns in setting-up time, or the response signal that receives is very faint, all thinks not receive the significant response signal that mobile node C returns.
Step 402: the neighboring mobile node of the ID of mobile node C with paging mobile node C broadcasted in the base station in broadcast channel BCCH.
Here, the neighboring mobile node of base station paging mobile node C in broadcast channel is to communicate in order to trigger mobile node A and mobile node B and base station, carries out the work that business datum is transmitted to finish the follow-up neighboring mobile node of passing through.
Step 403: the neighboring mobile node A of mobile node C and B listen to the paging of base station from broadcast channel BCCH after, respectively the access demand signalling of self is sent to the base station by Random Access Channel RACH.
Step 404: after the base station receives the access demand signalling that mobile node A and B send, calculate from self to mobile node A again the path loss of purpose mobile node C, and from self to mobile node B again to the path loss of purpose mobile node C.
Step 405: two path losses that the base station will calculate compare, select the less path of wherein loss, such as being to select from the base station to mobile node A again to the path of purpose mobile node C, selected path is broadcasted in the base station in broadcast channel BCCH then.
Here and since base station selection from self to mobile node A again to the path of mobile node C, therefore, mobile node A then becomes the relaying mobile node of this professional transmission.
Step 406: the base station sends to mobile node A with this business datum, after mobile node A receives business datum, carries the demand signalling (REQ) of self ID to mobile node C transmission.
Step 407: after mobile node C receives the demand signalling that carries its ID (REQ) that mobile node A sends, to mobile node A echo reply signaling (REP).
Here, mutual REQ signaling is in order to make mobile node C and A carry out the preparation of communicating by letter with the REP signaling.
Step 408: mobile node A receives that mobile node C sends reply signaling (REP) after, related service information is sent to mobile node C.
Here, related service information is meant, information such as the bit rate of grouping, required signal noise ratio (SIR) and data packet length.
Step 409: after mobile node C received the related service information that mobile node A sends, (ALLC) sent to mobile node A with assignment signalling.
Here, comprise in the ALLC signaling that mobile node C is transmission code word and the time slot that mobile node A is distributed.
Step 410: mobile node A utilizes the code word and the time slot that distribute in the ALLC signaling that traffic data packets is sent to mobile node C after receiving the assignment signalling (ALLC) that mobile node C sends.
So far, the present invention has finished at being in purpose mobile node in shade, deep fade zone or the dead band process of downlink transfer is provided.
Fig. 5 a, Fig. 5 b are illustrated under the different number of users with Fig. 5 c, and the present invention is to the improvement of system down link throughput.As can be seen, use the method that mobile node is communicated in the bimodulus mode of the present invention, the system down link throughput is obviously greater than the throughput of simple cellular communication, and the degree that improves of throughput is along with number of users and radius of society are the increase of cell range and strengthening.This be because, the user is many more and the radius sub-district is big more, the terminal number that is in cellular network in shade, deep fade or the dead band is just many more, so, use method of the present invention, can make the terminal that is in shade, deep fade or the dead band is that mobile node finds the probability of via node just big more, realizes that the terminal of communication is just many more, therefore, the raising effect to throughput of system is just obvious more.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.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 (10)
1, a kind of method of communication by bimode terminal is characterized in that, this method may further comprise the steps:
After A, base station receive the access request that the source mobile node sends, judge according to the sign that inserts the purpose mobile node that carries in the request whether this purpose mobile node is in self overlay area, and whether the channel condition between the source and destination mobile node satisfies this transmission requirement, if, judge that then this business is local professional, execution in step B, otherwise, execution in step C;
B, the base station judges whether this business is real time business, if real time business, base station allocated channel resource or path, and indication source and destination mobile node utilizes this channel appointed resource or path to communicate with the self-organizing form, the source mobile node then is sent to the purpose mobile node with the business datum of self, finish current flow process then, if not real time business, the channel resource that the utilization of base station indication source and destination mobile node is reserved communicates with the self-organizing form, the source mobile node then is sent to the purpose mobile node with the business datum of self, finishes current flow process then
C, base station indication source and destination mobile node are transmitted business datum by the base station, the source mobile node then is sent to the base station with the business datum of self with direct mode or trunking scheme, and the base station is sent to the purpose mobile node with this business datum with direct mode or trunking scheme again.
2, method according to claim 1, it is characterized in that described base station indication source and destination mobile node utilizes this channel appointed resource to communicate with the self-organizing form to comprise: base station indication source and destination mobile node utilizes this channel appointed resource to carry out the communication of point-to-point;
Described source mobile node then is sent to the purpose mobile node with self business datum and comprises: the source mobile node then utilizes this channel appointed resource that the business datum of self directly is sent to the purpose mobile node.
3, method according to claim 1, it is characterized in that, described base station specified path, and indication source and destination mobile node utilizes the path of this appointment to communicate with the self-organizing form to comprise: the path of being made up of the relaying mobile node of this real time business delay requirement is determined to satisfy according to certain criteria in the base station, indicates the source and destination mobile node to utilize described path to communicate;
Described source mobile node then is sent to the purpose mobile node with self business datum and comprises: the source mobile node is sent to the purpose mobile node with the business datum of self by the relaying mobile node in the described path.
4, method according to claim 3 is characterized in that, described certain criteria comprises minimum overall pathloss or the shortest path.
5, method according to claim 1, it is characterized in that, when the channel resource that the utilization of base station indication source and destination mobile node is reserved communicated with the self-organizing form, described source mobile node then was sent to the purpose mobile node with self business datum and comprises:
The source mobile node is chosen route according to the Routing Protocol of self configuration, and by the relaying mobile node in the selected route own service data is sent to the purpose mobile node.
6, method according to claim 1, it is characterized in that, this method further comprises: when this business is not local business, the base station judges whether this business is real time business, if, base station indication source and destination mobile node is transmitted business datum by the base station, and the source mobile node directly is sent to the base station with business datum, and the base station directly is sent to the purpose mobile node with this business datum again;
If not, the channel resource that the utilization of base station indication source and destination mobile node is reserved sends to the base station with business datum, the source mobile node is then chosen the route that arrives the base station according to the Routing Protocol that self disposes, and business datum being sent to the base station by the relaying mobile node in the selected route, the base station will be sent to the purpose mobile node from the business datum of source mobile node by the relaying mobile node in the selected route again.
7, method according to claim 1 is characterized in that, this method further comprises: in this business is not local professional, and the described purpose mobile node wireless signal that is in the base station be difficult to effectively to arrive regional the time;
C1, base station judge whether receive the significant response signal that this purpose mobile node returns in setting-up time, if receive by broadcast channel broadcasts paging purpose mobile node, then carry out normal downlink transmission process, and process ends, if do not receive, execution in step C2 then;
The neighboring mobile node of broadcast channel broadcasts paging purpose mobile node is passed through in C2, base station;
After each neighboring mobile node of C3, purpose mobile node received the Radio Paging of base station, the request of will inserting respectively was sent to the base station;
C4, base station calculate respectively from the base station self to each neighboring mobile node again to the path loss of purpose mobile node, select the path of wherein loss minimum, and business datum be sent to the purpose mobile node by the neighboring mobile node in the selected path.
8, method according to claim 7 is characterized in that, among the step C4, described base station may further comprise the steps the step that business datum is sent to the purpose mobile node by the neighboring mobile node in the selected path:
C41, base station send to the neighboring mobile node of the purpose mobile node in the selected path with business datum, after this neighboring mobile node receives the business datum of sending the base station, send the demand signalling that carries self identification to the purpose mobile node;
After C42, purpose mobile node receive the demand signalling that this neighboring mobile node sends, reply signaling to this neighboring mobile node transmission, this neighboring mobile node receives that the purpose mobile node sends reply signaling after, the business information that this is professional sends to the purpose mobile node;
After C43, purpose mobile node receive the business information that this neighboring mobile node sends, send to this neighboring mobile node with carrying the assignment signalling that sends code word and time slot, this neighboring mobile node utilizes the code word and the time slot that are distributed in this assignment signalling that business datum is sent to the purpose mobile node after receiving the assignment signalling that the purpose mobile node sends.
9, method according to claim 1, it is characterized in that, before described base station receives the access request step that the source mobile node sends, further comprise: the source mobile node sends to the base station by the access request that competition uplink random access channel will carry self identification;
When the base station receives the access request that the source mobile node sends, at first judge according to the sign of source mobile node whether it is legal, if legal, then continue to carry out described when this business is local business, the base station judges whether this business is the step of real time business, otherwise, jump out this flow process.
10, method according to claim 1 is characterized in that, after described base station receives the access request step that the source mobile node sends, further comprises: the request of will inserting sends to the source mobile node of base station and monitors broadcast channel;
Described base station indication source and destination mobile node utilizes this channel appointed resource or path to communicate to comprise: the base station utilizes this channel appointed resource or path to communicate by broadcast channel indication source and destination mobile node, the source mobile node listens to this indication from broadcast channel after, send business datum.
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| CNB2004100697680A CN100426877C (en) | 2004-07-19 | 2004-07-19 | Method of communication by bimode terminal |
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| CN100426877C true CN100426877C (en) | 2008-10-15 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101064911B (en) * | 2006-04-28 | 2012-08-22 | 上海贝尔阿尔卡特股份有限公司 | Switch control method, relay station and base station for wireless access system |
| CN101111047B (en) * | 2006-07-18 | 2011-03-30 | 华为技术有限公司 | Method and system for communication using relaying base station |
| CN101291167B (en) * | 2007-04-20 | 2013-02-27 | 华为技术有限公司 | Bi-mode relay station, network access method, mode switching method and control station thereof |
| CN101800946B (en) * | 2009-02-10 | 2014-11-05 | 中兴通讯股份有限公司 | Data transmission method |
| CN101808361A (en) * | 2009-02-12 | 2010-08-18 | 中兴通讯股份有限公司 | Data transmission method |
| CN102184616B (en) * | 2011-01-29 | 2013-04-03 | 厦门日华科技股份有限公司 | Time division multiple access technology-based communication system for transmitting air situation and disaster situation early warning information |
| CN102802237B (en) * | 2012-08-13 | 2016-03-23 | 北京华信傲天网络技术有限公司 | Data forwarding controlling method and wireless common control equipment |
| CN106060966A (en) * | 2016-08-09 | 2016-10-26 | 中电华瑞技术有限公司 | Connection establishing method and device for terminals |
| EP3484186B1 (en) * | 2017-11-13 | 2022-01-05 | Robert Bosch GmbH | First road-side network node and method to operate the first road-side network node |
| CN116633850B (en) * | 2023-07-19 | 2023-09-22 | 北京智芯微电子科技有限公司 | Standby route determining method, data transmission method and device of dual-mode communication system |
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