CN103596287B - A kind of based on the resource regulating method under heterogeneous network converged environment - Google Patents
A kind of based on the resource regulating method under heterogeneous network converged environment Download PDFInfo
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Abstract
The present invention provides a kind of based on the resource regulating method under heterogeneous network converged environment, and the content of the method is: base station utilizes the mobile terminal UE entered in blind area first the node division of blind area to be become several groups；After mobile terminal UE entrance blind area becomes mobile gateway UE, the node of blind area quickly accesses mobile gateway in units of group, gathers simultaneously and uploads data to mobile gateway；Mobile gateway can leave this group node after having collected data at any time, then moves to next group node and continues to collect data.The present invention utilizes mobile gateway UE to dispatch each node according to the packet situation in region, quickly set up connection to go forward side by side row data communication, without networking again and distribute time slot, ensure that the validity and reliability of data, add energy ecology, it is effectively reduced data collision and networking transmission delay, improves the overall performance of network.
Description
Technical field
The invention belongs to mobile radio telecommunications technical field, relate to a kind of resource regulating method, particularly relate to a kind of based on the resource regulating method under heterogeneous network converged environment.
Background technology
In recent years, along with developing rapidly of communication technology, increasing wireless communication system is made to have provided the user various heterogeneous network environment.The communication networks such as wireless sense network (such as Zigbee), Wireless Personal Network (such as Bluetooth), WLAN (such as Wi-Fi), public mobile network (such as 2G, 3G) are ripe day by day.Above-mentioned network has provided the user ubiquitous, information communication service at all times.And in order to provide the user with better access service, network is made to have more excellent topological structure and extensibility, it is achieved self-organizing truly, self adaptation, and there is the service that end-to-end quality of service (QoS) ensures, heterogeneous network becomes inevitable development trend from isomery to fusion.So far, how heterogeneous network converged technology utilizes the advantage of network each other the most efficiently, by the control realization seamless access to access, be the emphasis direction in current heterogeneous network converged technical research.
Star Network is to apply more a kind of network topology structure in self-organizing network.Star Network belongs to centralized Control type network, and whole network is performed centralized access control management by Centroid, and each internodal communication will pass through Centroid.Therefore, Centroid is considerably complicated, and the communication process of each node burden is all only small, it is only necessary to the simple communication meeting link requires.Star Network has several advantage: first, controls simple, and any website is only connected with central node, it is easy to network monitoring and management.Second, easily, connection line can be isolated and carried out fault detect and location by central node one by one, and the fault of single point of attachment only affects an equipment, without influence on the whole network for fault diagnosis and isolation.3rd, convenient service, each serve sites and network can be reconfigured by central node easily.But the central node of Star Network burden weight, it is easy to formed " bottleneck ", and the distribution process ability of each website is relatively low, causes that the motility of Centroid is poor.When Centroid and gateway handoff are frequent; when mobile gateway enters blind area every time or is temporarily in the self-organizing network region of notconnect state; Centroid is by restructuring network and utilizes traditional Channel Access Mechanism to collect data; this would generally bring very big energy expenditure and transmission delay, makes network performance decline.
In the application scenarios based on many mobile gateways as shown in Figure 1, such as many-to-one applied environments such as tourist attractions, hospital or shopping mall, each node is in a fixed position, after UE enters blind area, using the data as gateway collection node, after collecting data, network can be left at any time.Node needs to access as early as possible and communicate with UE, makes latency minimized.Under the framework of heterogeneous network converged, the introducing of mobile terminal will assist under Cellular Networks is assisted, and improves blind area node and networks and efficiency of transmission, improves the performance of self-organization network.But; in the wireless self-organization network application of many mobile UE; when mobile gateway enters blind area or is temporarily in the self-organizing network region of notconnect state; the time of staying is relatively short; gateway handoff frequency is of a relatively high, carries out frequently recombinating and channel access to network according to existing self-organizing network networking mode, it will usually bring very big energy expenditure and transmission delay; make network performance decline, affect Network morals.
Two kinds are had based on time division multiple acess (TDMA in self-organizing network is applied, TimeDivisionMultipleAccess) Channel Access Mechanism, frame structure as in figure 2 it is shown, wherein Fig. 2 (a) represent the frame format of centralized TDMA, Fig. 2 (b) represents the frame format of Distributed T DMA.Under centralized TDMA pattern, first time slot controls information for access point to net interior nodes broadcast traffic, and controller passes through dispatch sending node ID and corresponding sequence of time slots number, and node transmits message in the assigned timeslot distributed.Under Distributed T DMA mode, an active node is classified into three execution parts, Part I in the time slot of distribution, within a bit of time that time slot starts, first the request communication information from passive node is intercepted, i.e. communication request part (CR, communicationRequest)；Part II, active node sends short control message, i.e. flow-rate control section (TC, a TrafficControl), wherein comprises the confirmation message to passive node request and other control and synchronization message, such as timeslot scheduling table；Node also intercepts the TC of neighbor node such that it is able to the information obtaining neighbor node to select suitable time slot for oneself；Part III and data division, for the actual transmissions of higher protocol layer data.Each time slot is made up of two parts: control message and data cell.Regardless of mode, dispatch load is all relatively large, contains the ID of each node and corresponding gap information.
Summary of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of based on the resource regulating method under heterogeneous network converged environment, for the problem solving to reduce data collision and networking transmission delay.
For achieving the above object and other relevant purposes, the present invention provides a kind of based on the resource regulating method under heterogeneous network converged environment.
A kind of based on the resource regulating method under heterogeneous network converged environment, described include based on the resource regulating method under heterogeneous network converged environment:
S1, mobile gateway UE enter self-organizing network region and collect the information of node, and by the information reporting of described node to base station BS；
S2, the node grouping that base station will report, mobile gateway determines the time slot scheduling of each group of interior nodes；
S3, the position of base station BS location mobile gateway UE, and whether grouped according to the node in UE position judgment UE communication range, if grouped complete, then mobile gateway UE directly performs dispatch；If there is node not to be grouped, then return and perform step S2.
Preferably, a kind of detailed implementation of described step S1 is:
S11, mobile gateway UE broadcast Beacon bag in self-organizing network region, wake the node within the scope of a jumping up by Beacon bag；
S12, the node being waken up reports the ID of self to mobile gateway UE；
S13, the ID of node is uploaded to base station BS by extremitas reticularis link by mobile gateway UE.
Preferably, a kind of detailed implementation of described step S2 is:
S21, the node ID that base station BS record reports, produce the time started of a logical groups ID and this group node, update the group structural information table of storage in base station simultaneously；Described group of structural information table includes Centroid position and group interior nodes information unit in logical groups ID, group interior nodes number, group；Described group of interior nodes information unit includes ID and the node location of each node in group；
S22, logical groups ID and group initial time thereof are sent to mobile gateway UE by base station BS；
S23, mobile gateway UE are the node allocation schedule time slot in this logical groups；
S24, mobile gateway UE broadcast this logical groups ID and dispatch thereof by self-organizing network；Described dispatch includes ID and the time slot scheduling thereof of all nodes in logical groups.
Preferably, in step S3, described mobile gateway UE performs a kind of detailed implementation of dispatch and is:
S31, base station BS determines the position of mobile gateway UE, and each group node in UE communication range is found out in the position and group structural information table according to UE；
S32, base station BS issues group to UE and controls signaling, and described group controls signaling and include logical groups ID and group initial time；
S33, UE send described group to the node within the scope of a jumping and control signaling；
S34, group described in the querying node within the scope of a described jumping controls signaling and knows the appointment time slot scheduling of own node, and sends data to UE according to described appointment time slot scheduling.
As it has been described above, of the present invention based on the resource regulating method under heterogeneous network converged environment, have the advantages that
The present invention utilizes mobile gateway UE to dispatch each node according to the packet situation in region, quickly set up connection to go forward side by side row data communication, without networking again and distribute time slot, ensure that the validity and reliability of data, add energy ecology, it is effectively reduced data collision and networking transmission delay, improves the overall performance of network.
Accompanying drawing explanation
Fig. 1 is shown as the application scenarios schematic diagram based on many mobile gateways.
Fig. 2 is shown as frame structure schematic diagram；The frame format schematic diagram that wherein Fig. 2 (a) is centralized TDMA；The frame format schematic diagram that Fig. 2 (b) is Distributed T DMA.
Fig. 3 is shown as the application scenarios schematic diagram based on the resource regulating method under heterogeneous network converged environment of the present invention.
Fig. 4 is shown as the structural representation of of the present invention group of structural information table.
Fig. 5 is shown as the schematic flow sheet based on the resource regulating method under heterogeneous network converged environment of the present invention.
Fig. 6 is shown as the schematic flow sheet of a kind of detailed implementation of step S1 of the present invention.
Fig. 7 is shown as the schematic flow sheet of a kind of detailed implementation of step S2 of the present invention.
Fig. 8 is shown as the mobile gateway UE of the present invention schematic flow sheet performing a kind of detailed implementation of dispatch.
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention being described, those skilled in the art the content disclosed by this specification can understand other advantages and effect of the present invention easily.The present invention can also be carried out by additionally different detailed description of the invention or apply, and the every details in this specification based on different viewpoints and application, can also carry out various modification or change under the spirit without departing from the present invention.
Refer to accompanying drawing.It should be noted that, the diagram provided in the present embodiment only illustrates the basic conception of the present invention in a schematic way, then assembly that in graphic, only display is relevant with the present invention but not component count when implementing according to reality, shape and size drafting, during its actual enforcement, the kenel of each assembly, quantity and ratio can be a kind of random change, and its assembly layout kenel is likely to increasingly complex.
In legacy network; when mobile gateway enters blind area or is temporarily in the self-organization network region of notconnect state; the time of staying is relatively short; gateway handoff frequency is of a relatively high; network need to be carried out frequently restructuring and channel access according to existing ad hoc networking mode; very big energy expenditure and transmission delay would generally be brought, make network performance decline, affect Network morals.And the invention discloses a kind of based on the resource regulating method under heterogeneous network converged environment, the method is applicable to the environmental monitoring that there is mobile gateway easily generation gateway handoff or the regular dormancy of network, it is possible to improve access and the transmission performance of broadband wireless devices under isomery UNE environment.
When data acquisition equipment detects the generation of high priority burst service, in the self-organizing network of one-to-many, there is many isolated nodes and can not work owing to network is in notconnect state.Cause that child node also disconnects with gateway therewith below owing to being easy to exhaust energy near the node of gateway end, or gateway unfixing in these regions, node is to be distributed in this region and dormancy in the way of acnode, region interior nodes is carried out activating and networking by the mobile terminal that has of variable interval as gateway, and these regions are considered as blind area.Under UNE framework, the application service type of self-organizing network and coverage all will be expanded, mobile terminal (UE, UserEquipment) can as mobile gateway at base station (BS, BaseStation) transmitting control message and between self-organizing network, and collect the relevant information of blind area interior nodes.Therefore how under the auxiliary of Cellular Networks, to collect message efficiently from the node being in blind area and to transmit related data information be a crucial problem.
Namely the applicable scene of the present invention is positioned same place and there are Cellular Networks and other self-organizing network (Sensor Networks, WiFi etc.) environment that simultaneously covers, a large amount of mobile terminals have bimodulus (there are Cellular Networks and two kinds of access waies of self-organizing network) function and can run different business simultaneously, data acquisition equipment can collect multiple business categorical data, and is provided that certain data store, analyze and calculation function.Present invention assumes that base station can obtain the exact position of gateway UE, the information of each group node in self-organizing network is safeguarded by organizing structural information table in base station, identifies including the logical groups distributing to each group node and organizes the address designation (ID, IDentity) of interior nodes.Blind area is divided into several groups by base station, and when UE enters in network area, base station issues packet request command to UE, is measured and report nodal information by UE, and base station determines final packet according to reporting information.UE dispatches each node according to the packet situation in region, quickly set up connection to go forward side by side row data communication, it is not necessary to networking distribute time slot again, it is ensured that the validity and reliability of data, add energy ecology, be effectively reduced data collision and networking transmission delay.
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail.
Embodiment
The present embodiment provides a kind of based on the resource regulating method under heterogeneous network converged environment, the applicable scene of the method is as shown in Figure 3, cover (such as Sensor Network, Cellular Networks etc.) for the multiple heterogeneous wireless network in same place simultaneously, and specify region memory at a large amount of isolated nodes, the position of these isolated nodes is substantially stationary, and most time is in non-linking status, is blind area.There is a large amount of mobile terminal UE in blind area, and UE has multi-mode function, namely network transmission has many-to-one feature.
The described main contents based on the resource regulating method under heterogeneous network converged environment are: base station utilizes the mobile terminal UE entered in blind area first the node division of blind area to be become several groups；After mobile terminal UE entrance blind area becomes mobile gateway UE, the node of blind area quickly accesses mobile gateway in units of group, gathers simultaneously and uploads data to mobile gateway；Mobile gateway can leave this group node after having collected data at any time, then moves to next group node and continues to collect data.
Described implement process as it is shown in figure 5, include based on the resource regulating method under heterogeneous network converged environment:
S1, mobile gateway UE enter self-organizing network region and collect the information of node, and by the information reporting of described node to base station BS.
Further, a kind of detailed implementation of step S1 as shown in Figure 6, including:
S11, mobile gateway UE broadcast Beacon bag in self-organizing network region, wake the node within the scope of a jumping up by Beacon bag；
S12, the node being waken up reports the ID of self to mobile gateway UE；
S13, the ID of node is uploaded to base station BS by extremitas reticularis link by mobile gateway UE.
S2, the node grouping that base station will report, mobile gateway determines the time slot scheduling of each group of interior nodes.
Further, step S2 a kind of detailed implementation as it is shown in fig. 7, comprises:
S21, the node ID that base station BS record reports, produce the time started of a logical groups ID and this group node, update the group structural information table of storage in base station simultaneously；Described group of structural information table is to describe under heterogeneous network converged framework, the list of self-organized network nodes group internal information；As shown in Figure 4, described group of structural information table includes logical groups ID(GroupID), group interior nodes number (NodeNum), group in Centroid position (Locationofgroupcentre) and group interior nodes information unit (NodeInformationUnit)；Described group of interior nodes information unit includes the ID(NodeID of each node in group) and node location (NodeLocation).
S22, logical groups ID and group initial time thereof are sent to mobile gateway UE by base station BS；
S23, mobile gateway UE are the node allocation schedule time slot in this logical groups；
S24, mobile gateway UE broadcast this logical groups ID and dispatch thereof by self-organizing network；Described dispatch includes ID and the time slot scheduling thereof of all nodes in logical groups.
Described step S22 to step S24 describes base station in detail and helps mobile gateway quick obtaining group address and the process established the link with group interior nodes according to mobile gateway position and group structural information table.
S3, the position of base station BS location mobile gateway UE, and whether grouped according to the node in UE position judgment UE communication range, if grouped complete, then mobile gateway UE directly performs dispatch；If there is node not to be grouped, then return and perform step S2.
Further, mobile gateway UE perform dispatch a kind of detailed implementation as shown in Figure 8, including:
S31, base station BS determines the position of mobile gateway UE, and each group node in UE communication range is found out in the position and group structural information table according to UE；
S32, base station BS issues group to UE and controls signaling, and described group controls signaling and include logical groups ID and group initial time；
S33, UE send described group to the node within the scope of a jumping and control signaling；
S34, group described in the querying node within the scope of a described jumping controls signaling and knows the appointment time slot scheduling of own node, and sends data to UE according to described appointment time slot scheduling.
Provided by the invention it is applicable to based on the large area self-organizing network of mobile gateway based on the resource regulating method under heterogeneous network converged environment, after mobile terminal UE entrance self-organizing network region becomes mobile gateway, node will quickly access mobile gateway in units of group and upload data according to demand, can leave this group node after the complete data of UE gateway collection at any time.
In the present invention, UE dispatches each node according to the packet situation in region, quickly set up connection to go forward side by side row data communication, without networking again and distribute time slot, ensure the validity and reliability of data, add energy ecology, be effectively reduced data collision and networking transmission delay, improve the overall performance of network.
In the present invention, after mobile terminal UE entrance blind area becomes mobile gateway, the node division in blind area is also become several groups by UE by BS positioning UE position, and node will quickly access UE mobile gateway in units of group, and upload data.UE gateway can leave this group node at any time or replace mobile gateway without restructuring network.The method of the invention is a kind of preset order scheduling mode, is describe under heterogeneous network converged framework, and BS presets the communication time slot of each node in group, and networking again afterwards all will according to these default slot transmission data, it is not necessary to gateway redistributes time slot；And the related signaling that the present invention adds and improves in heterogeneous network converged, reduce the energy loss in access and transmitting procedure and unnecessary Signalling exchange.This method is possible not only to reduce energy expenditure and the signaling consumption of network, extends the life cycle of self-organizing network, increases energy ecology；The time delay networking and transmitting can also be reduced, improve overall performance of network.
In sum, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
Above-described embodiment is illustrative principles of the invention and effect thereof only, not for the restriction present invention.Above-described embodiment all under the spirit and category of the present invention, can be modified or change by any those skilled in the art.Therefore, art has usually intellectual such as modifying without departing from all equivalences completed under disclosed spirit and technological thought or change, must be contained by the claim of the present invention.
Claims (3)
1. one kind based on the resource regulating method under heterogeneous network converged environment, it is characterised in that described include based on the resource regulating method under heterogeneous network converged environment:
S1, mobile gateway UE enter self-organizing network region and collect the information of node, and by the information reporting of described node to base station BS；A kind of detailed implementation of described step S1 is:
S11, mobile gateway UE broadcast Beacon bag in self-organizing network region, wake the node within the scope of a jumping up by Beacon bag；
S12, the node being waken up reports the ID of self to mobile gateway UE；
S13, the ID of node is uploaded to base station BS by extremitas reticularis link by mobile gateway UE；
S2, the node grouping that base station will report, mobile gateway determines the time slot scheduling of each group of interior nodes；
S3, the position of base station BS location mobile gateway UE, and whether grouped according to the node in UE position judgment UE communication range, if grouped complete, then mobile gateway UE directly performs dispatch；If there is node not to be grouped, then return and perform step S2.
2. according to claim 1 based on the resource regulating method under heterogeneous network converged environment, it is characterised in that a kind of detailed implementation of described step S2 is:
S21, the node ID that base station BS record reports, produce the time started of a logical groups ID and this group node, update the group structural information table of storage in base station simultaneously；Described group of structural information table includes Centroid position and group interior nodes information unit in logical groups ID, group interior nodes number, group；Described group of interior nodes information unit includes ID and the node location of each node in group；
S22, logical groups ID and group initial time thereof are sent to mobile gateway UE by base station BS；
S23, mobile gateway UE are the node allocation schedule time slot in this logical groups；
S24, mobile gateway UE broadcast this logical groups ID and dispatch thereof by self-organizing network；Described dispatch includes ID and the time slot scheduling thereof of all nodes in logical groups.
3. according to claim 1 based on the resource regulating method under heterogeneous network converged environment, it is characterised in that: in step S3, described mobile gateway UE performs a kind of detailed implementation of dispatch and is:
S31, base station BS determines the position of mobile gateway UE, and each group node in UE communication range is found out in the position and group structural information table according to UE；
S32, base station BS issues group to UE and controls signaling, and described group controls signaling and include logical groups ID and group initial time；
S33, UE send described group to the node within the scope of a jumping and control signaling；
S34, group described in the querying node within the scope of a described jumping controls signaling and knows the appointment time slot scheduling of own node, and sends data to UE according to described appointment time slot scheduling.
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| CN109362122B (en) * | 2018-09-12 | 2020-09-04 | 中国科学院计算技术研究所 | Transmission scheduling method and system for communication data in low-power-consumption wide area network |
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| CN101917736A (en) * | 2010-08-17 | 2010-12-15 | 中国科学院计算技术研究所 | Sensor network test bed system and test method thereof |
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| CN101198167A (en) * | 2007-12-29 | 2008-06-11 | 华中科技大学 | Hybrid network system combining cell network and self-organizing network, and constructing method thereof |
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