CN102595408B - Wireless board band access network, equipment, and access method - Google Patents
Wireless board band access network, equipment, and access method Download PDFInfo
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Abstract
The invention relates to a wireless board band access network, equipment, and an access method, which particularly use at least one gateway node and at least one network node to form a corresponding board band access network. The gateway node and the network node comprise respectively a self-service gateway node and a self-service network node, wherein the self-service gateway node and the self-service network node are achieved through terminal equipment with a predefined process function in the network. The gateway node is connected with a wired network, information interaction is achieved through a wired method, and a wireless access service is provided through the gateway node and the network node. According to the wireless board band access network, the terminal equipment with the predefined process function in the network serves as the self-service gateway node and the self-service network node, so that the network which can provide a board band access service is formed in a self-service mode. Therefore, the wireless board band access network, the equipment and the access method can utilize effectively the existing wired access resources to achieve board band wireless access services in a larger area (including the whole network) at a lower cost.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to a kind of technical scheme that realizes of wireless wideband access network.
Background technology
At present, in broadband wireless access application, WLAN (WLAN (wireless local area network)) technology is widely used with the feature of its unique high data rate.In WLAN, specifically provided the access service of wireless terminal user by pre-configured AP (access point).
But the limited coverage area of pre-configured single AP in WLAN, makes it provide wireless coverage to have certain difficulty in larger region.Inventor finds realizing in process of the present invention: if desired realize on a large scale and covering, need in respective regions, configure multiple AP, and each AP be special setting for the equipment of access service is provided, therefore, this implementation will increase the cost of building the public broadband Access Network based on WLAN.
In a word, in prior art, if realize the broadband wireless access service in larger region, realize accordingly cost higher.
Summary of the invention
Embodiments of the invention provide a kind of wireless wideband access network and equipment and cut-in method, thereby can effectively utilize existing access in radio resource, realize the broadband wireless access service in larger region with lower cost.
Embodiments of the invention provide a kind of BRAN, comprise at least one gateway node and at least one network node, described gateway node and network node comprise respectively self-service gateway node and the self-service network node realized by the terminal equipment with predetermined process function in network, wherein
Described gateway node, is connected with cable network and carries out the mutual of information with wired mode, also and between described network node carries out the mutual of information with wireless mode, and the wave point that carries out information interaction with terminal node is also provided;
Described network node, directly, with described gateway node or by carrying out information interaction with wireless mode between the indirect and described gateway node of other network nodes, also provides the wave point that carries out information interaction with terminal node.
Embodiments of the invention provide a kind of terminal equipment, comprise wireless transceiver and general service processing unit, and also comprise network processing unit, forward service processing unit and access service processing unit, and,
Network processing unit, for and adjacent terminal equipment between carry out information interaction with wireless mode, add information transfer network;
Forward service processing unit, carry out the transmission processing of information for the information transfer network adding at described network processing unit with wireless mode;
Access service processing unit, for and terminal node between carry out information interaction processing with wireless mode, for terminal node provides access service.
Embodiments of the invention provide a kind of method that builds network, comprising:
Management node receives after joining request that terminal equipment sends, and judges whether described terminal equipment meets predetermined disposal ability requirement, and after determining and meeting, this terminal equipment is joined in network as network node or gateway node, wherein,
Described gateway node, is connected with cable network and carries out the mutual of information with wired mode, also and between described network node carries out the mutual of information with wireless mode, and the wave point that carries out information interaction with terminal node is also provided;
Described network node, directly, with described gateway node or by carrying out information interaction with wireless mode between the indirect and described gateway node of other network nodes, also provides the wave point that carries out information interaction with terminal node.
Embodiments of the invention provide a kind of method that realizes wireless access service, comprising:
At up direction, receive after the information of sending with wireless mode as terminal equipment or the terminal node of network node as the terminal equipment of gateway node, send to cable network in wired mode;
At down direction, receive the information of cable network as the terminal equipment of gateway node, and send to terminal node or directly send to terminal node with wireless mode with wireless mode by the terminal equipment as network node.
The technical scheme being provided by the embodiment of the invention described above can be found out, its by the terminal equipment with predetermined process function in network as self-service gateway node and self-service network node, self-service composition can provide the network of broadband inserting service, therefore, the realization of the embodiment of the present invention can effectively utilize existing access in radio resource, realizes the broadband wireless access service that (comprises network-wide basis) in larger region with lower cost.
Accompanying drawing explanation
The self-service schematic network structure that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the first terminal equipment that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the second terminal equipment that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the third terminal equipment that Fig. 4 provides for the embodiment of the present invention;
The schematic network structure of the pure self-help model that Fig. 5 provides for the embodiment of the present invention;
The on-premise network structural representation that Fig. 6 provides for the embodiment of the present invention;
The schematic network structure of the overlay model that Fig. 7 provides for the embodiment of the present invention;
The schematic network structure of the fusion mode that Fig. 8 provides for the embodiment of the present invention;
The schematic network structure of the mixed mode that Fig. 9 provides for the embodiment of the present invention;
The self-service node that Figure 10 provides for the embodiment of the present invention adds the process schematic diagram of network;
Figure 11 for the embodiment of the present invention provide to adding the maintenance process schematic diagram of self-service node of network;
The process schematic diagram of the self-service node deviated from network that Figure 12 provides for the embodiment of the present invention;
The deployment node that Figure 13 provides for the embodiment of the present invention adds the process schematic diagram of network;
Figure 14 for the embodiment of the present invention provide to adding the maintenance process schematic diagram of deployment node of network;
The process schematic diagram of the deployment node deviated from network that Figure 15 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present invention has been utilized PC, portable computer equipment or mobile terminal device { as PDA (personal digital assistant), handheld computing device, mobile phone or smart mobile phone etc. } to have the cable broadband resource that certain operational capability is connected with the equipment of wireless receiving and dispatching ability and with these equipment to form a BRAN wide area, all standing self-servicely, thereby utilizes fully existing access in radio resource.
Meanwhile, in order to obtain better coverage, can also be provided with the fixing node of disposing, with overlay model, or fusion mode, or stack and merge the pattern of mixing, form the Radio Access Network of all standing jointly with the BRAN of self-service composition.
In embodiment provided by the invention, utilize existing terminal equipment to dispose the mode of a Radio Access Network as follows self-servicely:
In process by one group of physical entity node automatic deployment wireless wideband access network, the node that participates in automatic deployment wireless wideband access network is called self-service node, between multiple self-service nodes, can set up the network that wireless access service can be provided by self-service mode; Described physical entity node is the node device with automatic deployment function of realizing based on existing terminal equipment.
As shown in Figure 1, network equipment plane by described self-service node composition is called self-service plane, in self-service plane, each self-service node is by the power adjustments of each node wireless signal and the use of omnidirectional antenna/directional antenna, form one and be supported for basis, Radio Access Network take wireless signal all standing as target with node capacity, for providing broadband wireless access service, this terminal node, the terminal node in its wireless signal coverage (being user terminal) comprises self-service node and non-self-service node.
More specifically say, the wireless wideband access network of self-service deployment comprises the terminal equipment with wireless receiving and dispatching ability and computing ability of carrying out communication service, and the described terminal equipment with wireless receiving and dispatching ability and computing ability of carrying out communication service comprises following several:
(1) terminal equipment is connected with wired broadband network, and meanwhile, the index of its wireless receiving and dispatching ability and computing ability reaches certain threshold values, is called gateway node;
(2) terminal equipment is not connected with wired broadband network, but the index of its wireless receiving and dispatching ability and computing ability reaches certain threshold values, is called network node;
(3) terminal equipment was not both connected with wired broadband network, and the index of its wireless receiving and dispatching ability and computing ability does not reach certain threshold values yet, is called terminal node.
Wherein, by gateway node of describing in above-mentioned (1) and (2) and network node just can be self-service form the Radio Access Network in a broadband, by this BRAN, described gateway node and network node both can have been realized communicating by letter of own and external network (as internet etc.), again can be for terminal node of describing in above-mentioned (3) provides broadband wireless access service, thus terminal node can be realized and the communicating by letter of external network by gateway node and network node.
Below the specific implementation structure to above-mentioned all types of terminal is described.
(1) gateway node
It is directly connected with cable broadband resource, by the forwarding data flow in Radio Access Network in cable network, simultaneously by the forwarding data flow in cable network in Radio Access Network;
This gateway node can also provide the access service of terminal node, and it can be specifically the electronic equipment for consumption that PC, portable computer equipment or mobile terminal device (as PDA, handheld computing device, mobile phone or smart mobile phone etc.) etc. have respective capabilities.
The specific implementation structure of this gateway node can, with reference to shown in Fig. 2, can comprise:
Wireless transceiver, for carrying out the transmitting-receiving operation of wireless signal;
General service processing unit, the general service function that need to complete for realizing terminal equipment self, as call service function etc.;
Cable broadband resource processing unit, for being connected with cable network, and and cable network between carry out the mutual of information;
Network processing unit, for and adjacent terminal equipment between carry out information interaction by wireless transceiver with wireless mode, add information transfer network, comprise for this gateway node is joined to self-service planar network;
Forward service processing unit, carry out the transmission processing of information for the information transfer network adding at described network processing unit by wireless transceiver with wireless mode, for and adjacent gateway node or network node between carry out the mutual of information;
Access service processing unit, for and terminal node between carry out information interaction processing by wireless transceiver with wireless mode so that provide access service for terminal node.
It should be noted that, described network processing unit specifically can comprise detecting signal unit and registration process unit, wherein, described detecting signal unit is for detection of the wireless signal of adjacent terminal equipment, and triggers described registration process unit after the wireless signal that adjacent terminal equipment detected; Log-on operation is carried out for the terminal equipment to adjacent in described registration process unit, adds the information transfer network at adjacent terminal equipment place;
This network processing unit can also comprise and leaves processing unit, for after deviated from network, carries out and leaves operation to adjacent terminal equipment;
In addition, described network processing unit can also comprise at least one in neighbouring device administrative unit and access authority administrative unit, now, this gateway node can also be served as management node, manage for the gateway node in network or network node, wherein, described neighbouring device administrative unit for to adjacent terminal equipment add or the process of deviated from network manages, be included in and in the process that adjacent terminal equipment adds network, it carried out to authentication and registration process and carry out topology and upgrade and process etc., in the time of its deviated from network by the information deletion of its registration and carry out topology upgrade process etc., described access authority administrative unit, for the terminal node of request access is accessed to authority control and management, is controlled and whether is allowed corresponding terminal node access network.
(2) network node
The difference of this apparatus for network node and gateway node equipment is, network node does not have the function being connected with cable network, that is to say, network node equally both can be used as the user of Radio Access Network service, a composition node that can be used as again Radio Access Network, it specifically can provide the forwarding capability of data flow; Meanwhile, it can also provide the access service function of terminal node;
Equally, this network node can be also the electronic equipment for consumption that PC, portable computer equipment or mobile terminal device (as PDA, handheld computing device, mobile phone or smart mobile phone etc.) etc. have respective capabilities.
The specific implementation structure of this network node as shown in Figure 3, comprise wireless transceiver and general service processing unit, and access service processing unit, forwarding service processing unit and network processing unit, the function of the corresponding units in the function of each unit specific implementation and effect thereof and described gateway node is basic identical, is not described in detail in this.
And, this network node also can be used as described management node, in network processing unit, can also comprise at least one in neighbouring device administrative unit and access authority administrative unit, for to adding or other gateway nodes or the network node of deviated from network manage operation, and for the terminal node of request access is accessed to authority control and management.
(3) terminal node
This terminal node (being terminal equipment) is the user of simple Radio Access Network service, and it can have the equipment that uses wireless broadband access service for PC, portable computer equipment or mobile terminal device (as PDA, handheld computing device, mobile phone or smart mobile phone etc.) etc.;
The specific implementation structure of this terminal node as shown in Figure 4, comprises wireless transceiver and general service processing unit, and in corresponding function and the gateway node of describing before and network node, the function of corresponding units is basic identical.
Formation that just can be self-service by the information interaction between described gateway node and network node can provide for terminal node the wireless access service network of the self-help model of wireless access service.
The structure of the wireless access service network of described self-help model can be as shown in Figure 5, wherein, gateway node under self-help model and network node are respectively self-service gateway node and the self-service network node realized by the terminal equipment with predetermined process function in network, corresponding gateway node (being self-service gateway node) and network node (being self-service network node) have formed corresponding self-service plane, and the gateway node in described self-service plane is connected with cable network and carries out information interaction.Can provide broadband wireless access service for terminal node by this self-service plane, between described terminal node and self-service plane node, carry out the mutual of wireless signal, and carry out WiMAX access by self-service plane.
Can find out, the region that the Radio Access Network by the self-help model shown in Fig. 5 can obtain service to hope provides wireless coverage service completely.
On the basis of the wireless access service network of described self-help model, for further expanding the scope of respective wireless access service covering or improving quality of wireless services (as railway, highway etc.) for special area, can also dispose in artificially corresponding gateway node and network node, set up the corresponding planar network of disposing by corresponding gateway node and network node, thereby provide corresponding broadband inserting service for terminal node.
As shown in Figure 6, by gateway node and network node, the network equipment plane of disposing gateway node and on-premise network node composition is called deployment plane, the mode of specifically disposing gateway node and on-premise network node by artificially arranging obtains better wireless signal and access service quality, thereby provides better service for user terminals such as terminal nodes.
In the deployment plane shown in Fig. 6, each node is by adjustment, the adjusting of node wireless signal power and the use of omnidirectional antenna/directional antenna of each node location, the network of a region-wide wireless coverage of composition, for the terminal node under this region provides broadband wireless access service, as area, road beyond self-service planed signal coverage exist the region of high speed mobile terminal etc. along the line.
According to self-service plane and the different relations that arrange of disposing plane, specifically can comprise overlay model, fusion mode and mixed mode by self-service plane and the common broadband wireless access service network building of deployment plane, wherein: described overlay model refers to self-service plane, and overlay area is separate separately with disposing plane, and stack arranges; Described fusion mode refers to self-service plane and the complementation of overlay area everywhere of disposing plane, jointly forms an overlay area; Described mixed mode, stack and fusion mode refer to and adopt described overlay model and fusion mode to carry out self-service plane simultaneously and dispose the setting of plane.
Under various patterns, for providing the process of wireless access service, terminal node comprises: at up direction, receive after the information of sending with wireless mode as terminal equipment or the terminal node of network node as the terminal equipment of gateway node, send to cable network in wired mode; At down direction, receive the information of cable network as the terminal equipment of gateway node, and send to terminal node or directly send to terminal node with wireless mode with wireless mode by the terminal equipment as network node.Wherein, it should be noted that, described gateway node or network node also can be used as described terminal node, now, and for this gateway node of a certain business or the only corresponding user terminal of conduct of network node.
The mode that specific implementation to these three kinds of patterns and terminal node is respectively realized to broadband wireless access below describes.
(1) overlay model
As shown in Figure 7, overlay model refers to self-service plane and disposes plane is stacked system to the wireless coverage mode in same desired service region, is specially self-service plane and disposes each node in plane the broadband radio access network that all forms as possible separately an all standing in the time forming full coverage areas.
In the time that terminal node is received the wireless signal of two planes simultaneously, select a plane to carry out WiMAX access according to certain rule judgment, to carry out corresponding business, for example, specifically can be according to the corresponding plane of selection Information Selection setting in advance, or, access the selection of plane according to the different radio signal quality of two planes, etc.; In the time that terminal node is only received the wireless signal of a plane, unconditionally carry out WiMAX access by this plane.
(2) fusion mode
As shown in Figure 8, fusion mode refers to self-service plane and disposes plane the wireless coverage mode in same desired service region is formed for merging, it is self-service plane and the node in deployment plane form an all standing jointly as possible broadband radio access network with identical status, covering and topological relation that node in two planes not only needs the node of considering this plane to form with it in the time forming full coverage areas also need the node of considering another plane to cover and topological impact it simultaneously.
In this pattern, terminal node only can be received the wireless signal of a plane, and by utilizing this plane to carry out WiMAX access, carries out corresponding business by this plane.
(3) mixed mode
As shown in Figure 9, mixed mode refers to self-service plane and disposes plane the wireless coverage mode in same desired service region is adopted to overlay model and fusion mode simultaneously, has overlay model and fusion mode simultaneously.Self-service plane and the node of disposing in plane are not only considered covering and the topological relation that the node of this plane forms with it in the time forming full coverage areas, also will consider that the node of another plane covers and topological impact it the in the situation that of needs; For example, in subregion, two planes form the broadband radio access network of an all standing separately as possible, in some region, need two planes to work in coordination, in Different Plane, each node forms the broadband radio access network of an all standing jointly as possible with identical status.
In the time that terminal node is received the wireless signal of two planes simultaneously, select a plane to carry out WiMAX access according to certain rule judgment; In the time that terminal node is only received the wireless signal of a plane, this plane of unconditional use is carried out WiMAX access.
For ease of the understanding to the embodiment of the present invention, below in conjunction with accompanying drawing, the process of the corresponding Radio Access Network of structure in the embodiment of the present invention is described.
In the process of the described Radio Access Network of structure, when the terminal equipment that can be used as gateway node { for example, PC, portable computer equipment or mobile terminal device are (as PDA, handheld computing device, mobile phone or smart mobile phone etc.) etc. start and with after wired mode access network, the wireless transceiver in this terminal equipment just can be intercepted the radio environment at current place, whether agree to add in the wireless broadband network of helping each other in the mode of gateway node according to the user of intercepted result prompt terminal equipment, if agree to, this terminal equipment is by the gateway node becoming in this network, and in the networks such as accessing Internet, can also be other node for data forwarding, think that other nodes provide corresponding network insertion service.Thereby set up of one's own accord the radio bandwidth access network network of all standing, meet the demand of user's freedom of information exchange.
Building in the process of described Radio Access Network, the processing procedure that terminal equipment adds self-service plane as shown in figure 10, specifically comprises the following steps:
Step 101: terminal equipment powers on, and carry out the process that adds accordingly Radio Access Network;
Step 102: the wireless transceiver perception in terminal equipment is wireless environment around, i.e. perception neighbor node around;
Step 103: this terminal equipment and the neighbor node perceiving carry out information interaction, joins request as sent to neighbor node etc., this terminal equipment is carried out to authentication and mandate work by management node;
Specifically can carry out authentication and authorisation process as corresponding management node to this terminal equipment by adjacent neighbor node (adjacent gateway node or network node) or the node device of specifying, wherein, the management node of being responsible for authentication and mandate can be gateway node, also can be network node, or, also can be specifically designed to the equipment that carries out authentication and authorisation process for other;
Step 104: whether management node judges authentication and authorize and pass through, if do not pass through, forbid that this terminal equipment adds network, and processing procedure finishes, if pass through, continues execution step 105;
Step 105: the ability parameter that this terminal equipment reports oneself to neighbor node (for example, can comprise the ability, frequency selective power, transfer capability, the sustainability of electric power, the disposal ability of CPU of capacity of orientation, the power adjustments of maximum transmission power that its wireless device has, antenna, etc.), and by neighbor node and network negotiate, judge whether this terminal equipment adding is had the ability, whether be ready and whether need to add in BRAN with network node or gateway node mode;
Step 106: judge whether this terminal equipment can join in BRAN as gateway node or network node, if so, perform step 107, otherwise, notify this terminal equipment adding to add in terminal node mode, and finish this and add handling process;
Step 107: neighbor node and network negotiate, various parameters after adding according to this terminal equipment (for example, can comprise the each internodal topological relation of network, the ability parameter of the each node of network, the logic region of the each node of network is divided, network provides the discharge model of business, etc.) the new network topological diagram of calculating generation, and by parameter (for example, can comprise the each internodal topological relation of network, direction/the power/frequency of equipment wireless signal transmission, etc.) network node or the gateway node that are handed down to this terminal equipment and need to carry out parameter adjustment, so that each node device carries out reshuffling of wireless coverage and topology, and the recalculating etc. of route,
Step 108: this terminal equipment adds BRAN in the mode of network node or gateway node, thinks that other node devices provide broadband wireless access service.
In self-service plane, network node or the main flow process of gateway node maintaining network as shown in figure 11, specifically comprise the following steps:
Step 111: between adjacent network node or gateway node, timing exchanges handshaking information;
Step 112: network node or gateway node judge whether overtime as management node, if do not had, continues execution step 111, otherwise, execution step 113;
This step is specially network node that timing judges whether to receive that it is adjacent or the handshaking information of gateway node, if do not receive, and corresponding timer expiry;
Step 113: BRAN is reconfigured, upgrade corresponding topological structure;
Be specially: network node or gateway node are not received the handshaking information of certain network node or gateway node within the predetermined time, think certain network node or gateway node fault or mobile deviated from network, the network node that this is adjacent or gateway node will with network negotiate, with according to various parameters, recalculate and generate new network topological diagram, and the parameter of new network topology is handed down to the network node or the gateway node that need adjustment, so that carry out reshuffling of wireless coverage and topology;
Step 114: under new network topology condition, network node or gateway node carry out the re-computation of route, and provide corresponding broadband inserting service according to result of calculation;
Step 115: carry out cleaning and the switching of the session on former deviated from network node or gateway node, with the impact that guarantees that corresponding business is not left by described network node or gateway node.
In self-service plane, the handling process that network node or gateway node exit BRAN as shown in figure 12, specifically comprises the following steps:
Step 121: the network node that need to exit or gateway node exit request (leaving request) message to adjacent network node or gateway node transmission;
Step 122: adjacent network node or gateway node as management node are received described exiting after request message, the network node that needs are exited or gateway node are carried out and are exited operation, and in BRAN, assist the network node that exits or gateway node to carry out cleaning and the switching of corresponding session, can not be subject to the business that guarantees to carry out by this network node exiting or gateway node the impact that it exits;
Step 123: adjacent network node or gateway node are also responsible for again and network negotiate for the described event that exits, generate new network topological diagram to recalculate according to various parameters, and the parameter of new network topological diagram is handed down to the network node or the gateway node that need adjustment, to carry out reshuffling of wireless coverage and topology;
Step 124: under new network topology condition, respectively net relevant network node or gateway node and carry out the re-computation of route, and provide broadband inserting service according to new result of calculation.
Disposing in plane, as disposing handling process that the network node of node or gateway node add network as shown in figure 13, specifically comprise the following steps:
Step 131: the node device that can be used as network node or gateway node of setting powers on, now, this node device just can be used as node device to be added;
Step 132: the wireless transceiver perception in described equipment is wireless environment around, and perceive neighbor node around, perceive adjacent network node or gateway node;
Step 133: the node device that this is to be added and neighbor node equipment exchange message, and start network by neighbor node by management node this node device to be added is carried out to authentication and mandate work;
Wherein, described management node can be described neighbor node equipment self, can be also other node devices as network node or gateway node or the special equipment arranging in network;
Step 134: whether management node judges the authentication of this node device to be added and authorize and pass through, if do not pass through, forbid that this node device to be added adds network, and this processing procedure finishes, otherwise, execution step 135;
Step 135: this node device to be added reports the ability parameter of oneself to neighbor node equipment;
Step 136: neighbor node equipment and network negotiate (are held consultation between for example, other node devices and in network, or, and between the node device of specifying, hold consultation), according to disposing planning requirement and relevant parameter, calculate and generate new network topological diagram, and the parameter of new network topological diagram is handed down to this node device and the network node that need to adjust or gateway node, to carry out reshuffling of wireless coverage and topology, then carry out the re-computation of route;
Step 137: this node device to be added adds network in the mode of network node or gateway node, and in network, access corresponding broadband inserting service, so far, node device to be added completes the operation that adds network.
Disposing in plane, for as disposing the described network node of node or the maintaining network handling process of gateway node as shown in figure 14, specifically can comprise the following steps:
Step 141: between each network node or gateway node and neighbor networks node or gateway node, timing exchanges handshaking information;
Step 142: described neighbor networks node or gateway node as management node judge that whether the timer for each network node or gateway node of its setting is overtime, if do not have overtime, determine that corresponding network node or gateway node are still online, and normally work, now, continue execution step 141, otherwise, determine corresponding network node or deviated from network of gateway node, now need to perform step 143;
Step 143: described neighbor networks node or gateway node confirm that corresponding network node or gateway node are because of deviated from network of reason such as fault or movements, with network negotiate, with according to disposing planning requirement and relevant parameter, recalculate and generate new network topological diagram, and the parameter of new network topological diagram is handed down to the network node or the gateway node that need adjustment, carry out reshuffling of wireless coverage and topology;
Step 144: under new network topology condition, each network node and gateway node carry out the re-computation of route;
Step 145: the session on the network node leaving or gateway node is cleared up and switched, to guarantee that corresponding business can not be subject to the impact of this departure process.
Disposing in plane, the handling process that network node or gateway node exit network as shown in figure 15, specifically comprises the following steps:
Step 151: network node to be exited or gateway node exit request (leaving request) message to neighbor networks node or gateway node transmission;
Step 152: receive that the neighbor networks node or the gateway node that exit request message reply as management node, and assist the network node that exits or gateway node to carry out cleaning and the switching of corresponding session, to guarantee that former business of carrying out by this network node exiting or gateway node can not be affected;
Step 153: neighbor networks node or gateway node are responsible for again and network negotiate, with according to disposing planning requirement and relevant parameter, calculate and generate new network topological diagram, and the parameter of new network topological diagram is handed down to the network node or the gateway node that need adjustment, carry out reshuffling of wireless coverage and topology;
Step 154: under new network topology condition, network node or gateway node carry out the re-computation of route, to utilize the result of re-computation to carry out broadband wireless access business.
In sum, the embodiment of the present invention can make the broadband access resource not much being fully utilized to be fully utilized, in wireless mesh network, can make most of flow utilize existing idle bandwidth resource to realize network insertion, thereby improve the utilance of access-in resource.
The broadband wireless access scope that embodiments of the invention can be supported can be the wide scope such as even national in city, area, also can be as the regional area scope such as community, campus, the network providing by the embodiment of the present invention can obtain seamless WiMAX access covering, and general, mobile service is provided.
In the embodiment of the present invention, because the distance between gateway node or network node and user terminal (terminal node) is less, therefore transmission quality is higher, thereby be more suitable for the transmission requirement of high bandwidth, thereby be convenient to provide the wireless access service of high bandwidth, and, the wireless receiving and dispatching power requirement of each terminal equipment is reduced, thereby reduced the electric energy that terminal equipment consumes.
In a word, in the embodiment of the present invention, all have the equipment of certain operational capability and wireless receiving and dispatching ability can to make full use of PC, portable computer equipment or mobile terminal device (as PDA, handheld computing device, mobile phone or smart mobile phone etc.) etc., and can make full use of the cable broadband resource being connected with each equipment, thereby greatly reduce the cost that builds BRAN.
The above; only for preferably embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in 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 (2)
1. terminal equipment is set to a method for network node or gateway node, it is characterized in that, described method comprises:
Wireless transceiver perception in described terminal equipment is wireless environment around, and perceives neighbor node around;
Described terminal equipment carries out information interaction with the described neighbor node perceiving, and sends access request to described terminal equipment is carried out to authentication and mandate by management node to described neighbor node;
Whether management node judges described authentication and authorizes and pass through, if by authentication and mandate;
Described terminal equipment reports the ability parameter of oneself to described neighbor node, and by described neighbor node and network negotiate, judges whether described terminal equipment can join in BRAN as network node or gateway node;
If described terminal equipment can join in BRAN as network node or gateway node, described neighbor node and network negotiate, add the calculation of parameter after network to generate new network topological diagram according to described terminal equipment, and network parameter is sent to described terminal equipment and need to carry out the network node of parameter adjustment or gateway node so that each node device carries out wireless coverage and reshuffling of topology and recalculating of route;
Described terminal equipment adds BRAN to think that other node devices provide broadband wireless access service in the mode of network node or gateway node.
2. method according to claim 1, is characterized in that, wherein said management node is the node device of described neighbor node or appointment, and described neighbor node is gateway node or the network node adjacent with described terminal equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210071369.2A CN102595408B (en) | 2007-09-28 | 2007-09-28 | Wireless board band access network, equipment, and access method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210071369.2A CN102595408B (en) | 2007-09-28 | 2007-09-28 | Wireless board band access network, equipment, and access method |
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| CN1925442A (en) * | 2006-08-01 | 2007-03-07 | 程伟明 | Automatic network-building method for wireless communication terminal in intelligent environment |
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