CN102833165A - Method and device for dispatching resources - Google Patents
Method and device for dispatching resources Download PDFInfo
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- CN102833165A CN102833165A CN2012103081393A CN201210308139A CN102833165A CN 102833165 A CN102833165 A CN 102833165A CN 2012103081393 A CN2012103081393 A CN 2012103081393A CN 201210308139 A CN201210308139 A CN 201210308139A CN 102833165 A CN102833165 A CN 102833165A
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Abstract
An embodiment of the invention discloses a method and a device for dispatching resources. According to a source station and a destination station corresponding to a target global link, whether other interference-free global link sets of the target global link exist in a network or not is judged. If other global link sets exist, the source station can send a request to a central coordinator (CCo) for multiplexing interference-free bandwidth resources of the other global links, or after the interference-free global link sets of the target global link between the source station and the destination station are directly acquired through the CCo, the CCo dispatches the target global link between the source station and the destination station to multiplex the bandwidth resources of the global links in the interference-free global link sets, and accordingly, use ratio of the bandwidth resources in a broadband PLC (programmable logic controller) network is increased.
Description
Technical field
The present invention relates to field of wireless communications, particularly a kind of dispatching method of resource and device.
Background technology
Power line communication is to utilize high-voltage power line (35kV and above electric pressure), medium voltage power line (10-30kV electric pressure) or low-voltage power line (380/220kV subscribers feeder) to carry out a kind of specific communication mode of message transmission as information transmitting medium.This technology is loaded into the high-frequency signal of carrying information on the power line, carries out transfer of data with power line, and the power line modulator/demodulator through special use separates high-frequency signal from power line, be sent to terminal equipment.
See that from the power line communication application point of view along with network technology and Development of Multimedia Technology, the trend that is applied to family's broadband network and intelligent grid is obvious day by day.The broadband P LC of family (Power Line Communication; Power line communication) network is a centralized management network; A CCo (Central Coordinator, central coordinator) is arranged in each network, and central coordinator is except as common PLC equipment; Also to be responsible for whole Network Management, comprise that network is set up, the allocated bandwidth of website access and authentication, the whole network and scheduling of resource, with the coordination of a plurality of adjacent networks, network power management etc.
In the PLC of the family network; Communication generally need connect earlier between website, and each connection has a related with it CSPEC (Connection Specification connects standard); Wherein comprised and connected required QoS (Quality of Service, service quality).In the time need setting up the link connection between website; Connection manager (the CM of website internal configurations; Connection Manager) can be according to the number of the CSPEC that is assigned to, confirm that this website need set up several links, and be each link appointment LID (Link Identifier; Link ID), wherein link has two types: link-local and global link.Global link is to be set up to the CCo request by CM; CCo can distribute a GLID (Global Link Identifier, global link ID) for each global link in the broadband P LC of the family network, and this GLID is unique at the whole network; And according to CSPEC, channel condition and bandwidth resources; CCo can distribute for each GLID specifies TDMA (Time Division Multiple Access, time division multiple access), in the time interval of distributing; Only allow this GLID link corresponding transmission, with the uncompetitive transmission of website that realizes that each GLID is corresponding.
Before the corresponding website of each GLID transmitted, website can be set up the global link between website to the CCo application.Under the situation of Internet resources abundance, CCo can set up in the request acknowledge message in global link and indicate website can successfully set up global link.Yet under the not enough situation of network bandwidth resources, set up the website of global link for application, CCo can set up in the request acknowledge message indication in global link set up the global link failure, causes satisfying the business transmission or the QoS demand of website.
Summary of the invention
The invention provides a kind of dispatching method and device of resource; Under the situation of network bandwidth resources deficiency; Can satisfy the business transmission or the QoS demand of website through resource multiplexing between glitch-free global link, thereby promote the utilance of bandwidth resources in the broadband P LC network.
The technical scheme that the embodiment of the invention adopts is:
A kind of dispatching method of resource comprises:
The Source Site obtains noiseless global link sign GLID set, and said noiseless GLID set comprises and the glitch-free GLID of target global link that said target global link is the global link between said Source Site and the purpose website;
Said Source Site is sent global link to central coordinator CCo and is set up solicited message; Said foundation carried said noiseless GLID set in the solicited message, so that said CCo distributes to the bandwidth resources schedule information of said target global link according to the definite needs of said noiseless GLID set;
After said Source Site receives the foundation request acknowledge message of said CCo transmission; Schedule entries according in the central beacon of said CCo broadcasting is obtained the bandwidth resources schedule information of distributing to said target global link, and the schedule entries in the said central beacon is carried said bandwidth resources schedule information.
On the one hand, said Source Site obtains noiseless global link sign GLID set and comprises:
Said Source Site obtains GLID set, and said GLID set comprises that said Source Site listens to the sign of the global link that does not have transfer of data in the transmission time of global link correspondence;
The broadcasting of said Source Site is disturbed and is judged message; And after the preset response time, obtain first target GLID set, said first target GLID set comprises that the corresponding website of global link does not send the sign of disturbing the global link of judging response message in the said GLID set;
Said Source Site receives the second target GLID set that the purpose website sends; Said second target GLID set comprises that the website of global link correspondence in the 2nd GLID set sends the sign of disturbing the global link of judging response message to said purpose website, and said the 2nd GLID set comprises that said purpose website listens to the sign of the global link that does not have transfer of data in the transmission time of global link correspondence;
Said Source Site obtains said noiseless GLID set, and said noiseless GLID set is said first target GLID set and the said second target GLID intersection of sets collection.
Said Source Site also comprises before obtaining GLID set:
Intercepted the transfer of data of said global link according to the transmission time of the global link of stipulating in non-standing scheduling beacon clauses and subclauses in the central beacon of said CCo broadcasting and the continuation scheduling beacon clauses and subclauses said Source Site.
On the other hand, said Source Site obtains noiseless global link sign GLID set and comprises:
Said Source Site receives the global link information that said CCo sends;
Said Source Site is according to the site list of discovery of said global link information and the preservation of said Source Site; Confirm and the glitch-free global link in said Source Site that the corresponding website of the glitch-free global link in said and said Source Site was not preserved in the site list said the discovery;
Interfering link contrast request message is sent to said purpose website in said Source Site; Said interfering link contrast request message carries and the glitch-free global link sign in said Source Site, so that said purpose website basis is obtained and the glitch-free GLID set of said target global link with the glitch-free global link sign in said Source Site;
Said Source Site receives the interfering link contrast response message that said purpose website sends, and carries in the said interfering link contrast response message and the glitch-free GLID set of said target global link.
The interfering link contrast response message that said Source Site receives said purpose website transmission also comprises afterwards:
Intercepted the transfer of data of the global link in the said glitch-free GLID set according to the transmission time of the global link of stipulating in non-standing scheduling beacon clauses and subclauses in the central beacon of said CCo broadcasting and the continuation scheduling beacon clauses and subclauses said Source Site;
When said Source Site listens to global link in the said glitch-free GLID set when not having transfer of data, said Source Site confirms that global link and the said target global link in the said glitch-free GLID set is noiseless.
The dispatching method of another kind of resource comprises:
Central coordinator CCo obtains the set with the glitch-free global link sign of target global link GLID according to the topology table of preserving and each corresponding global link information of said CCo, and said target global link is the global link between Source Site and the purpose website;
Said CCo is after the global link that receives the transmission of said Source Site is set up solicited message; Said CCo gathers the bandwidth resources schedule information that definite needs are distributed to said target global link according to said glitch-free GLID, and said bandwidth resources schedule information is used for indicating the bandwidth resources of the corresponding global link of the multiplexing said glitch-free GLID set sign of said target global link.
Said CCo confirms that according to said glitch-free GLID set needs also comprise after distributing to the bandwidth resources schedule information of said target global link:
Said CCo intercepts request message to said Source Site and the transmission of said purpose website, so that said Source Site and said purpose website are intercepted the transfer of data of the global link of sign correspondence in the said glitch-free GLID set;
Said CCo receives first listens for responsive message of said Source Site transmission and the second listens for responsive message that said purpose website sends; Comprise the said Source Site of indication in the said first listens for responsive message and listen to the global link that does not have transfer of data, the said second listens for responsive message comprises the said purpose website of indication and listens to the global link that does not have transfer of data;
Said CCo dispatches the bandwidth resources that the multiplexing said Source Site of said target global link and said purpose website all listen to the global link that does not have transfer of data.
A kind of dispatching device of resource comprises:
Acquiring unit is used to obtain noiseless global link sign GLID set, and said noiseless GLID set comprises and the glitch-free GLID of target global link that said target global link is the global link between said Source Site and the purpose website;
Transmitting element; Be used for sending global link and set up solicited message to central coordinator CCo; Said foundation carried said noiseless GLID set in the solicited message, so that said CCo distributes to the bandwidth resources schedule information of said target global link according to the definite needs of said noiseless GLID set;
Said acquiring unit; After also being used to receive the foundation request acknowledge message of said CCo transmission; Schedule entries according in the central beacon of said CCo broadcasting is obtained the bandwidth resources schedule information of distributing to said target global link, and the schedule entries in the said central beacon is carried said bandwidth resources schedule information.
On the one hand, said acquiring unit specifically comprises:
Acquisition module is used to obtain GLID set, and said GLID set is included in global link listens to the global link that does not have transfer of data in the corresponding transmission time sign;
Broadcast module; Be used for broadcasting and disturb judgement message; And after the preset response time, obtain first target GLID set, said first target GLID set comprises that the corresponding website of global link does not send the sign of disturbing the global link of judging response message in the said GLID set;
First receiver module; Be used to receive the second target GLID set that the purpose website sends; Said second target GLID set comprises that the website of global link correspondence in the 2nd GLID set sends the sign of disturbing the global link of judging response message to said purpose website, and said the 2nd GLID set comprises that said purpose website listens to the sign of the global link that does not have transfer of data in the transmission time of global link correspondence;
Said acquisition module also is used to obtain said noiseless GLID set, and said noiseless GLID set is said first target GLID set and the said second target GLID intersection of sets collection;
Intercept module, be used for the transmission time that continuation is dispatched the global link of stipulating in the beacon clauses and subclauses transfer of data of said global link being intercepted according to the non-standing scheduling beacon clauses and subclauses of the central beacon of said CCo broadcasting.
Another fermentation, said acquiring unit specifically comprises:
Second receiver module is used to receive the global link information that said CCo sends;
Determination module; Be used for the site list of discovery according to said global link information and the preservation of said Source Site; Confirm and the glitch-free global link in said Source Site that the corresponding website of the glitch-free global link in said and said Source Site was not preserved in the site list said the discovery;
Said determination module also is used for when the global link that listens to said glitch-free GLID set does not have transfer of data, confirms that global link and the said target global link in the said glitch-free GLID set is noiseless.
Sending module; Be used for sending interfering link contrast request message to said purpose website; Said interfering link contrast request message carries and the glitch-free global link sign in said Source Site, so that said purpose website basis is obtained and the glitch-free GLID set of said target global link with the glitch-free global link sign in said Source Site;
Said second receiver module also is used to receive the interfering link contrast response message that said purpose website sends, and carries in the said interfering link contrast response message and the glitch-free GLID set of said target global link.
The said module of intercepting, the transfer of data of the global link in also being used for according to the transmission time of the global link of stipulating in the non-standing scheduling beacon clauses and subclauses of the central beacon of said CCo broadcasting and the continuation scheduling beacon clauses and subclauses said glitch-free GLID being gathered is intercepted.
The dispatching device of another kind of resource comprises:
Acquiring unit is used for obtaining the set with the glitch-free global link sign of target global link GLID according to the topology table of preserving and each global link information, and said target global link is the global link between Source Site and the purpose website;
Confirm the unit; Being used to receive the global link of sending said Source Site sets up after the solicited message; Gather the bandwidth resources schedule information that definite needs are distributed to said target global link according to said glitch-free GLID, said bandwidth resources schedule information is used for indicating the bandwidth resources of the corresponding global link of the multiplexing said glitch-free GLID set sign of said target global link.
Said device also comprises:
Transmitting element is used for intercepting request message to said Source Site and the transmission of said purpose website, so that said Source Site and said purpose website are intercepted the transfer of data of the global link of sign correspondence in the said glitch-free GLID set;
Receiving element; Be used to receive first listens for responsive message of said Source Site transmission and the second listens for responsive message that said purpose website sends; Comprise the said Source Site of indication in the said first listens for responsive message and listen to the global link that does not have transfer of data, the said second listens for responsive message comprises the said purpose website of indication and listens to the global link that does not have transfer of data;
Scheduling unit is used to dispatch the bandwidth resources that multiplexing said Source Site of said target global link and said purpose website all listen to the global link that does not have transfer of data.
The dispatching method of the resource that the embodiment of the invention provides and device; Source Site and purpose website by the target global link is corresponding judge whether there are other global link set of not disturbing with this target global link in the network; If exist; The Source Site can be asked the bandwidth resources of multiplexing other global link of not disturbing to CCo, thereby has promoted the utilance of bandwidth resources in the broadband P LC network.On the other hand; Also can by CCo directly obtain and Source Site and purpose website between glitch-free other global link set of target global link after; Dispatch the bandwidth resources of multiplexing glitch-free other global link of target global link between Source Site and the purpose website, also can promote the utilance of bandwidth resources in the broadband P LC network.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The dispatching method flow chart of a kind of resource that Fig. 1 provides for the embodiment of the invention;
The dispatching method flow chart of the another kind of resource that Fig. 2 provides for the embodiment of the invention;
The dispatching method flow chart of another resource that Fig. 3 provides for the embodiment of the invention;
The dispatching method flow chart of another resource that Fig. 4 provides for the embodiment of the invention;
The dispatching device structural representation of a kind of resource that Fig. 5 provides for the embodiment of the invention;
The structural representation of a kind of power line communications apparatus that Fig. 6 provides for the embodiment of the invention;
The dispatching device structural representation of the another kind of resource that Fig. 7 provides for the embodiment of the invention;
The structural representation of a kind of central coordinator that Fig. 8 embodiment of the invention provides;
The sketch map of each global link in the network that Fig. 9 provides for the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making all other embodiment that obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
For the advantage that makes technical scheme of the present invention is clearer, the present invention is elaborated below in conjunction with accompanying drawing and embodiment.
Present embodiment provides a kind of dispatching method of resource, and is as shown in Figure 1, and said method comprises:
101, the Source Site obtains noiseless global link sign GLID set.
Wherein, said noiseless GLID set comprises and the glitch-free GLID of target global link that said target global link is the global link between said Source Site and the purpose website.
102, the Source Site is sent global link to central coordinator CCo and is set up solicited message.
Wherein, said foundation carried said noiseless GLID set in the solicited message, so that said CCo distributes to the bandwidth resources schedule information of said target global link according to the definite needs of said noiseless GLID set.
103, after the Source Site receives the foundation request acknowledge message of said CCo transmission, obtain the bandwidth resources schedule information of distributing to said target global link according to the schedule entries in the central beacon of said CCo broadcasting.
Wherein, the schedule entries in the said central beacon is carried said bandwidth resources schedule information.
The dispatching method of a kind of resource that present embodiment provides; Source Site and purpose website by the target global link is corresponding judge whether there are other global link set of not disturbing with this target global link in the network; If exist; The Source Site can be asked the bandwidth resources of multiplexing other global link of not disturbing to CCo, thereby has promoted the utilance of bandwidth resources in the broadband P LC network.
Present embodiment provides the dispatching method of another kind of resource, and is as shown in Figure 2, and said method comprises:
Intercepted the transfer of data of said global link according to the transmission time of the global link of stipulating in non-standing scheduling beacon clauses and subclauses in the central beacon of said CCo broadcasting and the continuation scheduling beacon clauses and subclauses 201a, Source Site.
201b, purpose website were intercepted the transfer of data of said global link according to the transmission time of the global link of stipulating in non-standing scheduling beacon clauses and subclauses in the central beacon of said CCo broadcasting and the continuation scheduling beacon clauses and subclauses.
202a, Source Site obtain GLID set.
Wherein, said GLID set comprises that said Source Site listens to the sign of the global link that does not have transfer of data in the transmission time of global link correspondence.
202b, purpose station for acquiring the 2nd GLID set.
Wherein, said the 2nd GLID set comprises that said purpose website listens to the sign of the global link that does not have transfer of data in the transmission time of global link correspondence.
203a, Source Site broadcasting are disturbed and are judged message, and after the preset response time, obtain first target GLID set.
Wherein, said first target GLID set comprises that the corresponding website of global link does not send the sign of disturbing the global link of judging response message in the said GLID set.
Can further from the sign that listens to the global link that does not have transfer of data in global link in the corresponding transmission time, filter out glitch-free GLID through step 203a; Wherein, The preset response time sends judgement message according to the Source Site and judges that to the interference that receives the corresponding website transmission of each link the needed time is set up on their own by manufacturer between the response message; Wherein, the information of disturbing judgement message specifically to carry is as shown in the table:
For example; As shown in Figure 9, when website D sent data, website C can not listen to the transmission of the global link between website E and the website D at website E; If but in the identical time; Website C sends information to website B, still can disturb the information generating of website D receiving station E, promptly the global link between website D and the website E is produced and disturbs.After website C sends and judges message like this; Can receive the judgement response message of website D; Though thereby website C can judge the transfer of data that do not have of the global link that listens between website E and the website D; But the global link between website E and the website D still may receive the interference of website C, thus website C corresponding global link can not with the multiplexing identical bandwidth resources of the global link between website E and the website D, thereby promoted mutually the reliability that interfering link is not judged.
203b, the broadcasting of purpose website are disturbed and are judged message, and after the preset response time, obtain second target GLID set.
Wherein, said second target GLID set comprises that the corresponding website of global link does not send the sign of disturbing the global link of judging response message in said the 2nd GLID set.
204, the Source Site receives the second target GLID set that the purpose website sends.
205, the Source Site obtains said noiseless GLID set.
Wherein, said noiseless GLID set is said first target GLID set and the said second target GLID intersection of sets collection.
206, the Source Site is sent global link to central coordinator CCo and is set up solicited message.
Wherein, Said foundation carried said noiseless GLID set in the solicited message; So that said CCo gathers the bandwidth resources schedule information that definite needs are distributed to said target global link according to said noiseless GLID, said target global link is the global link between said Source Site and the said purpose website.
207, after said Source Site receives the foundation request acknowledge message of said CCo transmission, obtain the bandwidth resources schedule information of distributing to said target global link according to the schedule entries in the central beacon of said CCo broadcasting.
The dispatching method of the another kind of resource that present embodiment provides; Source Site and purpose website by the target global link is corresponding judge whether there are other global link set of not disturbing with this target global link in the network; If exist; The Source Site can be asked the bandwidth resources of multiplexing other global link of not disturbing to CCo, thereby has promoted the utilance of bandwidth resources in the broadband P LC network.
Present embodiment provides the dispatching method of another resource, and is as shown in Figure 3, and said method comprises:
301, CCo sends global link information to the Source Site.
Wherein, global link information specifically can comprise the information of each link in number and the said global link of global link.
302, the Source Site is confirmed and the glitch-free global link in said Source Site according to the site list of discovery of said global link information and the preservation of said Source Site.
Wherein, the corresponding website of the glitch-free global link in said and said Source Site was not preserved in the site list said the discovery.Global link information specifically can comprise: CID (Connection Identifier; Connection identifier); The Source Site that each link is corresponding and the device identification (STEI and DTEI) of purpose website; CSPEC (Connection Specification connects standard), forward direction or reverse link I D and BLE (Bit Loading Estimate, Bit Allocation in Discrete is estimated).Found can comprise in the site list: the MAC Address of the detected website in Source Site, the TEI of detected website (Terminal Equipment Identifier; Terminal equipment ID), whether detected website belongs to SNID (the short network identifier of consolidated network, detected website belonging network with the Source Site; Short network ID), the subsequent use CCo ability of the CCo ability of PCo (Proxy Coordinator, the agent coordinator) ability of detected website, detected website, the website that detected, the state of detected website etc.
Particularly; Said Source Site is confirmed from the website that said each global link comprises at the said website do not preserved found in the site list; If the another one website of the global link that the website of not preserving is corresponding is not finding in the site list that then this global link is and the glitch-free global link in said Source Site yet.
303, interfering link contrast request message is sent to said purpose website in the Source Site, and said interfering link contrast request message carries and the glitch-free global link sign in said Source Site.
304, purpose website basis is obtained and the glitch-free GLID set of said target global link with the glitch-free global link sign in said Source Site.
Wherein, the target global link is the global link between said Source Site and the said purpose website, and the specifying information that said interfering link contrast request message carries can be as shown in the table:
Further; Intercepted the transfer of data of the global link in the said glitch-free GLID set according to the transmission time of the global link of stipulating in non-standing scheduling beacon clauses and subclauses in the central beacon of said CCo broadcasting and the continuation scheduling beacon clauses and subclauses said Source Site; When said Source Site listens to global link in the said glitch-free GLID set when not having transfer of data; Said Source Site confirms that global link and the said target global link in the said glitch-free GLID set is noiseless; Thereby confirmed that further global link and said target global link in the glitch-free GLID set are noiseless, improved the reliability of obtaining noiseless GLID set.
305, the purpose website sends interfering link contrast response message to the Source Site, carries in the message and the glitch-free GLID set of said target global link.
Wherein, the specifying information that carries of said interfering link contrast response message can be as shown in the table:
306, the Source Site is sent global link to central coordinator CCo and is set up solicited message, and said foundation carried said noiseless GLID set in the solicited message.
307, said CCo distributes to the bandwidth resources schedule information of said target global link according to the definite needs of said noiseless GLID set.
308, after the Source Site receives the foundation request acknowledge message of said CCo transmission, obtain the bandwidth resources schedule information of distributing to said target global link according to the schedule entries in the central beacon of said CCo broadcasting.
Wherein, the schedule entries in the said central beacon is carried said bandwidth resources schedule information.
The dispatching method of another resource that present embodiment provides; Source Site and purpose website by the target global link is corresponding judge whether there are other global link set of not disturbing with this target global link in the network; If exist; The Source Site can be asked the bandwidth resources of multiplexing other global link of not disturbing to CCo, thereby has promoted the utilance of bandwidth resources in the broadband P LC network.
Present embodiment provides the dispatching method of another resource, and is as shown in Figure 4, and said method comprises:
401, central coordinator CCo obtains the set with the glitch-free global link sign of target global link GLID according to the topology table of preserving and each corresponding global link information of said CCo.
Wherein, Said target global link is the global link between Source Site and the purpose website; The topology table that CCo preserved comprises in the network related and the site list of authentication, and each site list of discovery related and authentication website and found network list.
Particularly; CCo is through obtaining the site information that each global link comprised in the network; In conjunction with the topology table of preserving; The website of certain global link correspondence website corresponding with the target global link contrast the corresponding website of each global link and the website of target global link, if all not in the site list of discovery separately, can judge that so this this global link and target global link are noiseless.
402, said CCo is after the global link that receives the transmission of said Source Site is set up solicited message, and said CCo distributes to the bandwidth resources schedule information of said target global link according to the definite needs of said glitch-free GLID set.
Wherein, said bandwidth resources schedule information is used for indicating the bandwidth resources of the corresponding global link of the multiplexing said glitch-free GLID set sign of said target global link.
403, said CCo is that said target global link is distributed said bandwidth resources schedule information.
Particularly, at first CCo intercepts request message to said Source Site and the transmission of said purpose website, so that said Source Site and said purpose website are intercepted the transfer of data of the corresponding global link of said glitch-free GLID set identification; Said then CCo receives first listens for responsive message of said Source Site transmission and the second listens for responsive message that said purpose website sends; Comprise the said Source Site of indication in the said first listens for responsive message and listen to the global link that does not have transfer of data, the said second listens for responsive message comprises the said purpose website of indication and listens to the global link that does not have transfer of data; Last said CCo dispatches the multiplexing said Source Site of said target global link and listens to the multiplexing identical bandwidth resources of the global link that does not have transfer of data with said purpose website.
The dispatching method of another resource that present embodiment provides; CCo directly obtain and Source Site and purpose website between glitch-free other global link set of target global link after; Dispatch the bandwidth resources of multiplexing glitch-free other global link of target global link between Source Site and the purpose website, promoted the utilance of bandwidth resources in the broadband P LC network.
Present embodiment provides a kind of dispatching device of resource, and is as shown in Figure 5, and said device comprises: acquiring unit 51, transmitting element 52.
Acquiring unit 51 can be used to obtain noiseless global link sign GLID set, and said noiseless GLID set comprises and the glitch-free GLID of target global link that said target global link is the global link between said Source Site and the purpose website.
Acquiring unit 51; After can also being used to receive the foundation request acknowledge message of said CCo transmission; Schedule entries according in the central beacon of said CCo broadcasting is obtained the bandwidth resources schedule information of distributing to said target global link, and the schedule entries in the said central beacon is carried said bandwidth resources schedule information.
Acquiring unit 51 specifically can comprise: acquisition module 5101, broadcast module 5102, first receiver module 5103, intercept module 5104.
Acquiring unit 51 specifically can also comprise: second receiver module 5105, determination module 5106, sending module 5107.
Sending module 5107; Can be used for sending interfering link contrast request message to said purpose website; Said interfering link contrast request message carries and the glitch-free global link sign in said Source Site, so that said purpose website basis is obtained and the glitch-free GLID set of said target global link with the glitch-free global link sign in said Source Site.
Transmitting element 52; Can be used for sending global link and set up solicited message to central coordinator CCo; Said foundation carried said noiseless GLID set in the solicited message, so that said CCo distributes to the bandwidth resources schedule information of said target global link according to the definite needs of said noiseless GLID set
The entity of the dispatching device of a kind of resource that present embodiment provides can be power line communications apparatus; As shown in Figure 6; Said power line communications apparatus can comprise: processor 61, input equipment 62, output equipment 63, memory 64, said input equipment 62, output equipment 63, memory 64 are connected with said processor 61.
Said processor 61 specifically can comprise: acquiring unit 6101, transmitting element 6102.
Acquiring unit 6101 can be used to obtain noiseless global link sign GLID set, and said noiseless GLID set comprises and the glitch-free GLID of target global link that said target global link is the global link between said Source Site and the purpose website.
Acquiring unit 6101; After can also being used to receive the foundation request acknowledge message of said CCo transmission; Schedule entries according in the central beacon of said CCo broadcasting is obtained the bandwidth resources schedule information of distributing to said target global link, and the schedule entries in the said central beacon is carried said bandwidth resources schedule information.
Acquiring unit 6101 specifically can comprise: acquisition module 61011, broadcast module 61012, first receiver module 61013, intercept module 61014.
Acquiring unit 6101 specifically can also comprise: second receiver module 61015, determination module 61016, sending module 61017.
Sending module 61017; Can be used for sending interfering link contrast request message to said purpose website; Said interfering link contrast request message carries and the glitch-free global link sign in said Source Site, so that said purpose website basis is obtained and the glitch-free GLID set of said target global link with the glitch-free global link sign in said Source Site.
The dispatching device of a kind of resource that present embodiment provides under the not enough situation of Internet resources, can promote the utilance of bandwidth resources in the broadband P LC network through target global link and the multiplexing identical bandwidth resources of global link that do not have interference.
Present embodiment provides the dispatching device of another kind of resource, and is as shown in Figure 7, and said device comprises: acquiring unit 71, confirm unit 72, transmitting element 73, receiving element 74, scheduling unit 75.
Acquiring unit 71 can be used for obtaining the set with the glitch-free global link sign of target global link GLID according to the topology table of preserving and each global link information, and said target global link is the global link between Source Site and the purpose website.
Transmitting element 73 can be used for intercepting request message to said Source Site and the transmission of said purpose website, so that said Source Site and said purpose website are intercepted the transfer of data of the global link of sign correspondence in the said glitch-free GLID set
Receiving element 74; Can be used to receive first listens for responsive message of said Source Site transmission and the second listens for responsive message that said purpose website sends; Comprise the said Source Site of indication in the said first listens for responsive message and listen to the global link that does not have transfer of data, the said second listens for responsive message comprises the said purpose website of indication and listens to the global link that does not have transfer of data.
The entity of the dispatching device of the another kind of resource that present embodiment provides can be central coordinator CCo; As shown in Figure 8; Said central coordinator can comprise: processor 81, input equipment 82, output equipment 83, memory 84, said input equipment 82, output equipment 83, memory 84 are connected with said processor 81.
Said processor 81 specifically can comprise: acquiring unit 811, confirm unit 812, transmitting element 813, receiving element 814, scheduling unit 815.
Acquiring unit 811 can be used for obtaining the set with the glitch-free global link sign of target global link GLID according to the topology table of preserving and each global link information, and said target global link is the global link between Source Site and the purpose website.
Transmitting element 813 can be used for intercepting request message to said Source Site and the transmission of said purpose website, so that said Source Site and said purpose website are intercepted the transfer of data of the global link of sign correspondence in the said glitch-free GLID set.
Receiving element 815; Can be used to receive first listens for responsive message of said Source Site transmission and the second listens for responsive message that said purpose website sends; Comprise the said Source Site of indication in the said first listens for responsive message and listen to the global link that does not have transfer of data, the said second listens for responsive message comprises the said purpose website of indication and listens to the global link that does not have transfer of data.
Scheduling unit 816 can be used to dispatch the bandwidth resources that multiplexing said Source Site of said target global link and said purpose website all listen to the global link that does not have transfer of data.
Present embodiment provides the device of another kind of scheduling of resource; Confirm and the glitch-free global link of target global link according to the topology table of preserving; Regulation goal global link and the multiplexing identical bandwidth resources of glitch-free global link have then promoted the utilance of bandwidth resources in the broadband P LC network.
The dispatching device of the resource that the embodiment of the invention provides can be realized the above-mentioned method embodiment that provides, and concrete function is realized seeing also the explanation among the method embodiment, repeats no more at this.The dispatching method and the device of the resource that the embodiment of the invention provides go for field of wireless communications, but are not limited only to this.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method; Be to instruct relevant hardware to accomplish through computer program; Described program can be stored in the computer read/write memory medium; This program can comprise the flow process like the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (14)
1. the dispatching method of a resource is characterized in that, comprising:
The Source Site obtains noiseless global link sign GLID set, and said noiseless GLID set comprises and the glitch-free GLID of target global link that said target global link is the global link between said Source Site and the purpose website;
Said Source Site is sent global link to central coordinator CCo and is set up solicited message; Said foundation carried said noiseless GLID set in the solicited message, so that said CCo distributes to the bandwidth resources schedule information of said target global link according to the definite needs of said noiseless GLID set;
After said Source Site receives the foundation request acknowledge message of said CCo transmission; Schedule entries according in the central beacon of said CCo broadcasting is obtained the bandwidth resources schedule information of distributing to said target global link, and the schedule entries in the said central beacon is carried said bandwidth resources schedule information.
2. the dispatching method of resource according to claim 1 is characterized in that, said Source Site obtains noiseless global link sign GLID set and comprises:
Said Source Site obtains GLID set, and said GLID set comprises that said Source Site listens to the sign of the global link that does not have transfer of data in the transmission time of global link correspondence;
The broadcasting of said Source Site is disturbed and is judged message; And after the preset response time, obtain first target GLID set, said first target GLID set comprises that the corresponding website of global link does not send the sign of disturbing the global link of judging response message in the said GLID set;
Said Source Site receives the second target GLID set that the purpose website sends; Said second target GLID set comprises that the website of global link correspondence in the 2nd GLID set sends the sign of disturbing the global link of judging response message to said purpose website, and said the 2nd GLID set comprises that said purpose website listens to the sign of the global link that does not have transfer of data in the transmission time of global link correspondence;
Said Source Site obtains said noiseless GLID set, and said noiseless GLID set is said first target GLID set and the said second target GLID intersection of sets collection.
3. the dispatching method of resource according to claim 2 is characterized in that, said Source Site also comprises before obtaining GLID set:
Intercepted the transfer of data of said global link according to the transmission time of the global link of stipulating in non-standing scheduling beacon clauses and subclauses in the central beacon of said CCo broadcasting and the continuation scheduling beacon clauses and subclauses said Source Site.
4. the dispatching method of resource according to claim 1 is characterized in that, said Source Site obtains noiseless global link sign GLID set and comprises:
Said Source Site receives the global link information that said CCo sends;
Said Source Site is according to the site list of discovery of said global link information and the preservation of said Source Site; Confirm and the glitch-free global link in said Source Site that the corresponding website of the glitch-free global link in said and said Source Site was not preserved in the site list said the discovery;
Interfering link contrast request message is sent to said purpose website in said Source Site; Said interfering link contrast request message carries and the glitch-free global link sign in said Source Site, so that said purpose website basis is obtained and the glitch-free GLID set of said target global link with the glitch-free global link sign in said Source Site;
Said Source Site receives the interfering link contrast response message that said purpose website sends, and carries in the said interfering link contrast response message and the glitch-free GLID set of said target global link.
5. the dispatching method of resource according to claim 4 is characterized in that, the interfering link contrast response message that said Source Site receives said purpose website transmission also comprises afterwards:
Intercepted the transfer of data of the global link in the said glitch-free GLID set according to the transmission time of the global link of stipulating in non-standing scheduling beacon clauses and subclauses in the central beacon of said CCo broadcasting and the continuation scheduling beacon clauses and subclauses said Source Site;
When said Source Site listens to global link in the said glitch-free GLID set when not having transfer of data, said Source Site confirms that global link and the said target global link in the said glitch-free GLID set is noiseless.
6. the dispatching method of a resource is characterized in that, comprising:
Central coordinator CCo obtains the set with the glitch-free global link sign of target global link GLID according to the topology table of preserving and each corresponding global link information of said CCo, and said target global link is the global link between Source Site and the purpose website;
Said CCo is after the global link that receives the transmission of said Source Site is set up solicited message; Said CCo gathers the bandwidth resources schedule information that definite needs are distributed to said target global link according to said glitch-free GLID, and said bandwidth resources schedule information is used for indicating the bandwidth resources of the corresponding global link of the multiplexing said glitch-free GLID set sign of said target global link.
7. the dispatching method of resource according to claim 6 is characterized in that, said CCo confirms that according to said glitch-free GLID set needs also comprise after distributing to the bandwidth resources schedule information of said target global link:
Said CCo intercepts request message to said Source Site and the transmission of said purpose website, so that said Source Site and said purpose website are intercepted the transfer of data of the global link of sign correspondence in the said glitch-free GLID set;
Said CCo receives first listens for responsive message of said Source Site transmission and the second listens for responsive message that said purpose website sends; Comprise the said Source Site of indication in the said first listens for responsive message and listen to the global link that does not have transfer of data, the said second listens for responsive message comprises the said purpose website of indication and listens to the global link that does not have transfer of data;
Said CCo dispatches the bandwidth resources that the multiplexing said Source Site of said target global link and said purpose website all listen to the global link that does not have transfer of data.
8. the dispatching device of a resource is characterized in that, comprising:
Acquiring unit is used to obtain noiseless global link sign GLID set, and said noiseless GLID set comprises and the glitch-free GLID of target global link that said target global link is the global link between said Source Site and the purpose website;
Transmitting element; Be used for sending global link and set up solicited message to central coordinator CCo; Said foundation carried said noiseless GLID set in the solicited message, so that said CCo distributes to the bandwidth resources schedule information of said target global link according to the definite needs of said noiseless GLID set;
Said acquiring unit; After also being used to receive the foundation request acknowledge message of said CCo transmission; Schedule entries according in the central beacon of said CCo broadcasting is obtained the bandwidth resources schedule information of distributing to said target global link, and the schedule entries in the said central beacon is carried said bandwidth resources schedule information.
9. the dispatching device of resource according to claim 8 is characterized in that, said acquiring unit comprises:
Acquisition module is used to obtain GLID set, and said GLID set is included in global link listens to the global link that does not have transfer of data in the corresponding transmission time sign;
Broadcast module; Be used for broadcasting and disturb judgement message; And after the preset response time, obtain first target GLID set, said first target GLID set comprises that the corresponding website of global link does not send the sign of disturbing the global link of judging response message in the said GLID set;
First receiver module; Be used to receive the second target GLID set that the purpose website sends; Said second target GLID set comprises that the website of global link correspondence in the 2nd GLID set sends the sign of disturbing the global link of judging response message to said purpose website, and said the 2nd GLID set comprises that said purpose website listens to the sign of the global link that does not have transfer of data in the transmission time of global link correspondence;
Said acquisition module also is used to obtain said noiseless GLID set, and said noiseless GLID set is said first target GLID set and the said second target GLID intersection of sets collection.
10. the dispatching device of resource according to claim 9 is characterized in that, also comprises:
Intercept module, be used for the transmission time that continuation is dispatched the global link of stipulating in the beacon clauses and subclauses transfer of data of said global link being intercepted according to the non-standing scheduling beacon clauses and subclauses of the central beacon of said CCo broadcasting.
11. the dispatching device of resource according to claim 8 is characterized in that, said acquiring unit comprises:
Second receiver module is used to receive the global link information that said CCo sends;
Determination module; Be used for the site list of discovery according to said global link information and the preservation of said Source Site; Confirm and the glitch-free global link in said Source Site that the corresponding website of the glitch-free global link in said and said Source Site was not preserved in the site list said the discovery;
Sending module; Be used for sending interfering link contrast request message to said purpose website; Said interfering link contrast request message carries and the glitch-free global link sign in said Source Site, so that said purpose website basis is obtained and the glitch-free GLID set of said target global link with the glitch-free global link sign in said Source Site;
Said second receiver module also is used to receive the interfering link contrast response message that said purpose website sends, and carries in the said interfering link contrast response message and the glitch-free GLID set of said target global link.
12. the dispatching device of resource according to claim 8 is characterized in that,
The said module of intercepting, the transfer of data of the global link in also being used for according to the transmission time of the global link of stipulating in the non-standing scheduling beacon clauses and subclauses of the central beacon of said CCo broadcasting and the continuation scheduling beacon clauses and subclauses said glitch-free GLID being gathered is intercepted;
Said determination module also is used for when the global link that listens to said glitch-free GLID set does not have transfer of data, confirms that global link and the said target global link in the said glitch-free GLID set is noiseless.
13. the dispatching device of a resource is characterized in that, comprising:
Acquiring unit is used for obtaining the set with the glitch-free global link sign of target global link GLID according to the topology table of preserving and each global link information, and said target global link is the global link between Source Site and the purpose website;
Confirm the unit; Being used to receive the global link of sending said Source Site sets up after the solicited message; Gather the bandwidth resources schedule information that definite needs are distributed to said target global link according to said glitch-free GLID, said bandwidth resources schedule information is used for indicating the bandwidth resources of the corresponding global link of the multiplexing said glitch-free GLID set sign of said target global link.
14. the dispatching device of resource according to claim 13 is characterized in that, also comprises:
Transmitting element is used for intercepting request message to said Source Site and the transmission of said purpose website, so that said Source Site and said purpose website are intercepted the transfer of data of the global link of sign correspondence in the said glitch-free GLID set;
Receiving element; Be used to receive first listens for responsive message of said Source Site transmission and the second listens for responsive message that said purpose website sends; Comprise the said Source Site of indication in the said first listens for responsive message and listen to the global link that does not have transfer of data, the said second listens for responsive message comprises the said purpose website of indication and listens to the global link that does not have transfer of data;
Scheduling unit is used to dispatch the bandwidth resources that multiplexing said Source Site of said target global link and said purpose website all listen to the global link that does not have transfer of data.
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