CN101193448A - Mobile station initiated load balancing in wireless communication networks - Google Patents
Mobile station initiated load balancing in wireless communication networks Download PDFInfo
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Abstract
A method for load balancing across different access networks in wireless communication comprises: broadcasting periodically usable ability information of each network in at least two different access networks based on different wireless access techniques to indicate usable ability of each base station; accessing different access networks by using a mobile station to accept usable ability information from each base station in wireless communication; and initiating handover from a first base station to a second station by using a mobile station when load information relating to the first and the second bases satisfies handover conditions between the first and second access networks, and the load information resides in usable ability information received by the first base station in a first access network and the second base station in the different second access networks. A load balancing method provided in an isomorphic access network, a loading balancing method provided in a wireless access network, a handover method in a wireless access network, and a wireless communication system are also provided.
Description
Prioity claim and related application
The application requires the U.S. Provisional Application submitted on November 27th, 2006 number to be No.60/867,359, name is called the priority of " Mobile Station Initiated Load Balancing InWireless Communication Networks ", and it incorporates the part as present specification as a reference into.
Technical field
The application relates to radio communication, include but not limited to the Radio Transmission Technology (RTT) developed based on 3GPP/3GPP2 tissue and the wireless technology developed based on ieee standard association cordless communication network.
Background technology
Cordless communication network covers specific geographic region by being that wireless area territory and each wireless area can further be divided into two or more sectors with area dividing.The base station that is positioned at the center of respective cell/sector that it covered conceptually transmits information to mobile subscriber station (MSS) via descending (DL) wireless signal.Mobile radio station also is called mobile radio station (MS), subscriber station (SS), or wireless station.Mobile station via up (UL) wireless signal transmits information to its serving base station.Cordless communication network can be constructed based on one of following wireless technology platforms, for example, and IS-95, CMDA2000 1x, EV-DO, UMB, GSM, WCDMA, HSPA (high-speed packet access), LTE, WiMAX and WiFi wireless network.
The cordless communication network of two or more different technologies can overlap each other and maybe can be deployed in adjacent geographical position so that the access to mobile radio station to be provided.This isomery access technology is overlapping and deployment complementary networks is little by little general.Mobile radio station can be configured to many technology, multi mode terminal, and is operated so that the access between the multiple wireless network to be provided.A technical problem in inserting between this net is the load balance on the heterogeneous access networks.
Summary of the invention
The application provides and has been used in the technology of radio communication by the load balance of wireless terminal or mobile radio station initiation.
In one aspect, a kind of method that is used for providing the load balance on the radio communication heterogeneous access networks, may further comprise the steps: periodic broadcast is from the available capability message based on each network at least two heterogeneous access networks of different radio access technologies, to indicate the available capability at each place, base station; Use mobile radio station wireless access heterogeneous access networks, with the radio communication of mobile radio station in receive available capability message from each base station; And in first base station from first Access Network and available capability message that second base station in different second Access Network receives, satisfy when transferring the condition of (handoff) between the net between first and second Access Networks about the information of the load at first and second base stations places, use mobile radio station to initiate transfer from base station, first base station to the second.
In another aspect, a kind of method that is used for providing the load balance on the radio communication isomorphism Access Network, may further comprise the steps: periodic broadcast comes free two different operating persons operation and based on the available capability message of each network at least two different radio Access Networks of total wireless access technology, to indicate the available capability at each place, base station; Use mobile radio station wireless access Access Network, with the radio communication of mobile radio station in receive available capability message from each base station; And in first base station from first Access Network and available capability message that second base station in different second Access Network receives, when satisfying about the condition transferred between the net between first and second Access Networks, use mobile radio station to initiate transfer from base station, first base station to the second about the information of the load at first and second base stations places.
In another aspect, a kind of method that is used for providing the transfer in the radio communication wireless access network may further comprise the steps: broadcasting available capability message, with the available capability at each place, base station in the indication wireless access network; Use mobile radio station wireless access Access Network, with the radio communication of mobile radio station in receive available capability message from each base station; And when from the available capability message of first base station and the reception of second base station, when satisfying condition about the transfer between first and second base stations, use mobile radio station to initiate transfer from base station, first base station to the second about the information of the load at first and second base stations places.
In another aspect, a kind of wireless communication system comprises: comprise first wireless access network of a plurality of base stations, each base station radio broadcasting available capability message is to indicate the available capability at each place, base station; Second wireless access network that comprises a plurality of base stations, it is based on the wireless technology different with first wireless access network, and the second wireless access network radio broadcasting is from the available capability message of each base station, to indicate the available capability at each place, base station; Device in the mobile radio station, it is used for the wireless access Access Network, with the radio communication of mobile radio station in receive available capability message from each base station; Device in the mobile radio station, in its available capability message that is used for receiving when first base station and second base station second Access Network from first Access Network, when satisfying about the condition transferred between the net between first and second Access Networks, initiate transfer from base station, first base station to the second about the information of the load at first and second base stations places; And the device in the mobile radio station, it is used in the available capability message that first base station and the different base station first Access Network from first Access Network receive, about first and the information of the load at different base station place when satisfying, initiate transfer from first base station to different base station about the condition transferred in the net in first Access Network.
Example and enforcement aspect these and other are described in accompanying drawing, embodiment and claim in more detail.
Description of drawings
Fig. 1 shows the example of the wireless communication system with load balance that two heterogeneous access networks and core net be used to support that mobile radio station is initiated;
Fig. 2 shows the example that is used for providing the load balance on the radio communication heterogeneous access networks;
Fig. 3 shows the embodiment that is used for providing the load balance on the radio communication isomorphism Access Network; And
The example that is used for providing in the radio communication wireless access network based on the transfer of load balance is provided Fig. 4.
Embodiment
The application has described based on the example by the load balance on the different Access Networks of wireless terminal or process that mobile radio station is initiated, and based on the process of being initiated by mobile radio station, the load balance in using same Access Network is transferred the example of mobile radio station from a base station to another.Can be based on the isomery of different wireless access technologys with two different Access Networks that mobile radio station of initiating load balance or terminal connect, maybe can be based on the isomorphism of identical wireless access technology.
Load balance in the isomorphism access to wireless communication network is meant the utilization rate of balance based on the Radio Link of the Access Network of same wireless access technology.This load balance can be managed under the control model of center by using network entity (for example, base station (BS), base station controller (BSC), access service network (ASN), gateway (GW) etc.).Described in this application technology provides the load balance of the different modes of the load balance process of initiating based on mobile radio station in isomorphism access to wireless communication net.Load balance in the heterogeneous access networks is meant the utilization rate of balance based on the Radio Link of the multiple technologies Access Network of different radio access technologies.Have isomery and insert the center Control Network entity that the various wireless systems of the network of multiple technologies do not have the network side ability that is provided for load balance.Technology described in the application provides following mechanism in this system: use the load balance between multi mode terminal or the mobile radio station initiation different radio Access Network.The concrete enforcement of the load balance that this MS initiates can be used in and obtains one or more features, for example, simplifies network configuration towards the direction of dispersion or flat network topology structure, optimizes the use of wireless network, and the network performance that optimization is provided for different application.
Fig. 1 illustrates the example of wireless communication system in the heterogeneous access networks environment, wherein, can implement the load balance that MS of the present invention initiates.In this example, wireless communication system 100 comprises 3GPP2 Access Network 110, for example, the EV-DO network, ASN 120, for example, WiMax networking and core net 130 with multiple network function.Core net 130 is connected to one or more networks 140, for example, and internet and PSTN (public switch telephone network).
Example among Fig. 1 can be configured to be used for the structure that support disperses (half is flat) with other network configuration that is used for interactional structure, (for example allow Access Network, 110 and 120) with the separating of IP Connection Service, and (for example allow different Access Networks, 110 and 120) interact by common core net (for example, 130).In the example in Fig. 1, common book keeping operation (Billing) and consumer's management (care) can be implemented, think that WiMAX utilization rate among the ASN 120 and the EV-DO utilization rate in the 3GPP2 network 110 and unified authentication, authentication and the operation of keeping accounts provide a bill.AAA can be handled by core net platform 130.Wireless terminal or mobile radio station, mobile phone or have the computer 101 of wireless network access card 102 for example, wirelessly Access Network 110 and 120 is phone and several data business (for example, multimedia and TV broadcasting) or one acquisition wireless service to pass through core net 140.Based on technology and the network design described in the application, wireless terminal can monitor that with mobile radio station the load capacity of base station is (for example to carry out different Access Networks, the network 110 and 120 of two isomeries among Fig. 1, or two different Access Networks runing based on identical technology but by different operators) on load balance.In addition, wireless terminal or mobile radio station can also monitor that the load capacity of the base station in the identical Access Network (for example, 110 and 120) is to carry out the mobile switching from a base station to another base station based on load balance.
Common core network 130 can be configured to enable operation person can safeguard an IP kernel 136, for example, and AAA, MIP HA, Dynamic Host Configuration Protocol server, the element of regulation and management different access technologies (for example, WiMAX among Fig. 1 120 and EV-DO 110).Common core network 130 can also be configured to and allow the user by WiMAX 120 or EV-DO110, perhaps inserts all services and application in the core net 130 by network 110 and 120.Similarly, core net 130 is public for different Access Networks 110 and 120, and the bridge between networking 140 and Access Network 110 and 120 is provided.
Example among Fig. 1 can be used in to provide and passes through to use bimodulus MS in roaming between different Access Network 110 and 120 with by using the scheme based on transfer technology between netting, so that seamless conversation to be provided when safeguarding the IP conversation continuity.Two typical Access Networks 110 shown in Figure 1 and 120 are to provide the access of isomery: the network 120 of (1) WiMAX BS, be used for providing ASN gateway to be connected to the WiMAX airlink of MS and being connected to core net 130 via core net 130, and the network 110 of (2) EV-DO BS, be used to form AN, it also provides EV-DO airlink by the PDSN in the core net 130 140 to MS to the connection of core net 130.Conversation continuity and mobility can act on behalf of (FA) by foreign side and we agency (HA) is supported.
Interactional terminal is used to insert WiMAX 120 and EV-DO 110, can be multimode terminal, and it at the appointed time provides or WiMAX or EV-DO airlink connect or provide two airlinks to connect simultaneously.In one embodiment, only network inserts ID (NAI) and can distribute to each multimode terminal with identification terminal.
Core Service Networks 130 among Fig. 1 can comprise IP kernel module 136, and it can be configured to comprise multiple function, for example, PDSN, ASN gateway and mobile IP (MIP) HA, it is to be used for the ambulant anchor point of interactional MIP.Core Service Networks 130 can also comprise signaling nuclear control function 134:(1) MRFC (media resource function control) of multimedia service and the control of the Dynamic Resource Allocation for Multimedia among the MRFP, (2) MRFP (Media Resource Function Processor), it provides multimedia to handle required resource, (3) MGW (media gateway), it provides the adaptive functional in the different media flows, different encoding and decoding conversion, transformat conversion between data network and the circuit network, (4) be the MGCF of multimedia service (MGCF), be used for controlling the resource allocation of MGW, (5) PDF (policy decision function), it is provided to policy information/decision-making of AAA, and (6) CSCF (CSCF), it is as the control module in the IMS network, and is used for multimedia service.CSCF can be used as Proxy-CSCF, Interrogating-CSCF and Serving-CSCF.
Core Service Networks 130 among Fig. 1 can comprise support system 132, for example, and home subscriber server (HSS), bill support system, and operation support system (OSS).These support systems 132 provide unified authentication, authentication and record keeping service for WiMAX and EV-DO user's bag data, services and multimedia service.In addition, the core net 130 among Fig. 1 can comprise multiple application and service, for example, and content service and based on the conversation initialized protocol (SIP) of application service.
Can in the system 100 of Fig. 1 and other heterogeneous access networks, realize that the load balance that MS initiates provides general load balance to solve scheme with the inserting technology networks to isomery.The load balance that MS initiates can also be used for the load balance of inner inserting technology networks.The load balance that the particular instance of Fig. 1 uses MS to initiate is to provide the load balance between the network 120 and 110 that WiMAX and EV-DO coexist a ground.
In Fig. 1, WiMAX 120 is configured in different frequency bands with EV-DO 110.Its available capability (AC) information is periodically broadcasted in each WiMAX and EV-DO base station.Broadcast AC information by each WiMAX and EV-DO base station independently via the available capability signaling message.WiMAX and EV-DO dual-mode terminal are configured to insert WiMAX and EV-DO airlink, and monitor the available capability information broadcast from many BS of many BS of WiMAX network 120 and EV-DO network 110.Dual-mode terminal can calculate network load information from other system information available capability message and pre-configured parameter or the broadcast.Each dual-mode terminal is initiated to initiate in the net between technology or net technology based on the load information that receives in one or more received AC message and is switched (switch-over).
The specific embodiment of the load balance that this MS of the AC message that monitors based on MS initiates can be used in and obtains one or more advantages.For example, this MS load balance of initiating can be used in the general solution of the load balance between the technology Access Network of technology that isomery is provided and isomery.Again for example, the load balance of this MS initiation can be used in the decoupling of supporting different Access Networks.Again for example, the load balance that this MS initiates can be used in the complexity that reduces the network architecture, and is used for more easily being integrated into following pure flat network architectures (pure flat network).As another example, because initiate load balance in the MS side, the load balance that therefore this MS initiates can be used in provides load balance (switching) step of partly transferring the same as or similar to standard.
In an embodiment of the load balance that MS initiates, available capability message can be used in based on (for example, WiMAX network 120 among Fig. 1 and EV-DO network 110) load, and trigger the switching of Access Network in the different Access Network of the report information in the AC message.MS is switched to another Access Network to be equilibrated at balance airlink load between a plurality of Access Networks from an Access Network.
The broadcasting of available capability message can be minimized to reduce the requirement of airlink power, can make the AC message optimization that is positioned at the upper strata based on the frequency of AC message.The broadcast cycle of available capability message (for example) can be configurable system parameters, and can be configured manually to optional value.Can also loading condition Network Based dynamically control broadcast cycle by BS.If one or more loading conditions insert the system that has defined restriction, quicken MS triggering load balance thereby can reduce broadcast cycle.
When using available capability message, can use the Several Parameters in the available capability message.For wireless (OTA) transmission, can be with the big or small optimization of AC message.The specific embodiment of available capability can be defined as the Several Parameters that comprises following parameter:
A. available capability (AC) type: be used to represent that AC is used for current time or is used for potential cycle (potential period) (frame) from current time.
B. available capability percentage: with regard to untapped radio link power, it can be the AC on down link (DL) or the up link (UL).For example,
I.DL AC: 3 or 4 bits of representing available DL percentage power;
Ii.UL AC: 3 or 4 bits of representing available UL percentage power;
C. switching threshold: for the load balance operation is provided with it.
I. at first, can switch (switch-in) CINR (carrier-to-interference plus noise ratio)/modulation rate threshold value and be set to configurable parameter.Be higher than this AC message value if be used for the MS of the CINR measurement of that network, then this MS can be switched into this network.
Ii. secondly, can switch (switch-out) CINR/ modulation rate threshold value and be set to configurable parameter.Be lower than this AC message value if be used for the MS that the CINR of that network measures, then this MS can be switched and this network.
The load balance embodiment that two MS initiate is below described as an example.In one embodiment, single (SC) load balance that connects utilizes MS to monitor that simultaneously a plurality of airlinks in the interaction region also improve the success rate of transferring to reduce the incubation period of transferring.In this scheme, MS only connects a L3 connection that is established to core network from the airlink of the best.In another embodiment that is called as multi-link (MC) load balance, MS monitors and obtains a plurality of L2 connections of airlink simultaneously, and MS connects from a plurality of L3 that all available airlinks are established to core network.
As particular instance, can realize the SC load balance in the following manner.Each MS has the independently airlink module such as WiMAX and EV-DO module.Each MS is configured to observe existing MIPv4 and MIPv6 agreement.Each MS has unique NAI and has been assigned unique HoA from HA.At the HA place, the address (CoA) of binding MS and the management of host address (HoA).In operation, for example, the MS that is connected to an Access Network moves to many network coverages, and wherein, MS is keeping monitoring new available airlink in existing the connection.MS checks the available capability message that connects from a plurality of airlinks.If MS detects the load of current network and has arrived given threshold value or arrived and switch threshold value, then (if in the neighbor cell of current techniques network or other technical network some available capability being arranged) MS transfers via standard L2 and is initiated to the switch step of other network, and requirement is gone in the switching of having satisfied neighbor cell or other network.MS keeps the IP conversation continuity by MIP-HA.MS and MIP-HA keep the IP layer seamless to using.
The available capability control algolithm that is used for the load balance of MS initiation can rest on different network nodes, for example, is used for the BSC and the BS that is used for WiMAX of EV-DO network.The available capability control algolithm can (for example) use the algorithm of existing C DMA load controlling mechanism or letter to determine loading condition.In operation, the available capability control algolithm on each network is come the Control Network load by adjusting (1) available capability percentage and (2) switching threshold.
Therefore, initiate the load balance that MS initiates, to be reduced at the realization of load balance in isomery access or the isomorphism Access Network by MS.Each BS all broadcasts its control information that is written into and changes, and MS automatically switches into network or from network according to available capability information and the requirement of using QoS and switch, with the balancing network load.BS controls its load by the dish number of adjusting in the AC message.
Fig. 2 shows the method that the load balance on the heterogeneous access networks is provided in the mode of radio communication.Step 210 provides the available capability message of periodically broadcasting from each network of at least two different isomerization Access Networks, with the available capability of indication at each place, base station.Step 220 provides the use mobile radio station to come the wireless access heterogeneous access networks, with the radio communication of mobile radio station in receive available capability message from each base station.Step 230 provides in first base station from first Access Network and available capability message that second base station in different second Access Network receives, when satisfying about the condition transferred between the net between first and second Access Networks, use mobile radio station to initiate transfer from base station, first base station to the second about the information of the load at first and second base stations places.
Above-mentioned load balance in heterogeneous access networks also can be applied to by heterogeneous networks operator operation and based on the load balance in the isomorphism access to wireless communication network of same wireless access technology.This different isomorphism access to wireless communication network is shared identical core net (for example, 130 among Fig. 1) by other networks 140 (for example, internet and PSTN) in the mode of communicating by letter.
Fig. 3 shows the method that the load balance on the isomorphism Access Network is provided in the mode of radio communication.Step 310 provides the available capability message of periodically broadcasting from each network of at least two different radio Access Networks, with the available capability of indication at each place, base station, wherein, this wireless access network is by two different operating person operations and based on common wireless access technology.Step 320 provides the use mobile radio station to come this Access Network of wireless access, with the radio communication of mobile radio station in receive available capability message from each base station.Step 330 provides in first base station from first Access Network and available capability message that second base station in different second Access Network receives, when satisfying about the condition transferred between the net between first and second Access Networks, use mobile radio station to initiate transfer from base station, first base station to the second about the information of the load at first and second base stations places.
In addition, the above-mentioned load balance in heterogeneous access networks also can be applied to the switching between the different base station in the Access Network (for example, the network 110 or 120 in the system 100 of Fig. 1).Many handoff procedures use the wireless communication signals intensity between a mobile radio station and a plurality of base station to control handoff procedure.Existing handoff technique makes mobile radio station utilize the load capacity of mobile station monitors at the different base station place in the mode of communication in Access Network, and independent working load balance or control handoff procedure with other parameter working load balances.Can in Access Network, realize this internal technology NLB process in the mode identical with the switching of MS initiation.In this internal technology NLB process, AC message is provided for initiating the trigger message of load balance.Internal technology NLB process can be identical with the network reselection in switching between net.
Fig. 4 shows the method example that the switching in the wireless access network is provided in the mode of radio communication.Step 410 provides broadcasting available capability message, with the available capability at each the base station place of indication in wireless access network.Step 420 provides the use mobile radio station to come this Access Network of wireless access, with the radio communication of mobile radio station in receive available capability message from each base station.Step 430 provides when from the available capability message of first base station and the reception of second base station, when satisfying condition about the transfer between first and second base stations, use mobile radio station to initiate transfer from base station, first base station to the second about the information of the load at first and second base stations places.
Though very specification has comprised a lot of details, it should not constitute the restriction to interest field of the presently claimed invention, and only as the description of the feature details of specific embodiment.The special characteristic of describing in the content of each embodiment of this specification also can be incorporated among the single embodiment to be realized.On the contrary, each feature of describing in the content of single embodiment also can realize in a plurality of embodiment or in the suitable arbitrarily sub-portfolio respectively.Yet, although can in some combination, realize above-mentioned feature, and required its right in beginning, require one or more features of making up but can from combination, remove institute in some cases, and desired combination may be directed to the modification of a sub-portfolio or sub-portfolio.
In addition, specific embodiment has been described.Other embodiment include within the scope of the appended claims.
Claims (29)
1. method that is used for providing the load balance on the radio communication heterogeneous access networks may further comprise the steps:
Periodic broadcast is from the available capability message based on each network at least two heterogeneous access networks of different radio access technologies, to indicate the available capability at each place, base station;
Use the described heterogeneous access networks of mobile radio station wireless access, with the radio communication of described mobile radio station in receive available capability message from each base station; And
In first base station from first Access Network and available capability message that second base station in different second Access Network receives, about described first and the information of the load at described second base station place when satisfying, use described mobile radio station to initiate from described first base station to the transfer of described second base station about the condition transferred between the net between described first and second Access Networks.
2. method according to claim 1 may further comprise the steps:
In the available capability message that the different base station in first base station from first Access Network and described first Access Network receives, when satisfying about the condition transferred in the net in described first Access Network, use described mobile radio station to initiate the transfer of the described different base station of described first base station to described first Access Network from described first Access Network about the information of the load at described first base station and described different base station place.
3. method according to claim 2, wherein, described condition about transfer in netting comprises: the available capability that the described different base station in described first Access Network has is greater than the available capability of described first base station in described first Access Network.
4. method according to claim 2 may further comprise the steps:
Operate described mobile radio station with monitor simultaneously with described first Access Network in two or more layer 2 (L2) airlinks of different base station, to obtain available capability message from described different base station, transfer the stand-by period to reduce, and the best airlink of foundation by from be monitored airlink, selecting, to single layer 3 (L3) connection of core net.
5. method according to claim 2 may further comprise the steps:
Operate described mobile radio station with monitor simultaneously with described first Access Network in two or more layer 2 (L2) airlinks of different base station, to obtain available capability message from described different base station, transfer the stand-by period to reduce, and set up by the available airlink that is monitored, to two or more layers 3 (L3) connection of core net.
6. method according to claim 1, may further comprise the steps: operate described mobile radio station with monitor simultaneously with described first and second Access Networks in two or more layer 2 (L2) airlinks of different base station, to obtain available capability message from described different base station, to set up best airlink, to single layer 3 (L3) connection of core net by from be monitored airlink, selecting.
7. method according to claim 1, may further comprise the steps: operate described mobile radio station with monitor simultaneously with described first and second Access Networks in two or more layer 2 (L2) airlinks of different base station, to obtain available capability message from described different base station, to set up, to two or more layers 3 (L3) connection of core net by the available airlink that is monitored.
8. method according to claim 1, wherein, described condition about transfer between net comprises: the available capability that described second base station in described second Access Network has is greater than the available capability of described first base station in described first Access Network.
9. method according to claim 1 may further comprise the steps:
Operate described mobile radio station with the frequency of dynamic control cycle broadcasting from the available capability message of each network.
10. method according to claim 1, wherein, each Access Network in described first and second Access Networks is based on one of following wireless access technology: IS-95, CDMA200 1x, EV-DO, UMB, GSM, WCDMA, HSPA (high-speed packet access), LTE, WiMAX and WiFi wireless network.
11. a method that is used for providing the load balance on the radio communication isomorphism Access Network may further comprise the steps:
Periodic broadcast comes free two different operating persons operation and based on the available capability message of each network at least two different radio Access Networks of same wireless access technology, to indicate the available capability at each place, base station;
Use the described Access Network of mobile radio station wireless access, with the radio communication of described mobile radio station in receive available capability message from each base station; And
In first base station from first Access Network and available capability message that second base station in different second Access Network receives, about described first and the information of the load at described second base station place when satisfying, use described mobile radio station to initiate from described first base station to the transfer of described second base station about the condition transferred between the net between described first and second Access Networks.
12. method according to claim 11 may further comprise the steps:
In the available capability message that the different base station in first base station from first Access Network and described first Access Network receives, when satisfying about the condition transferred in the net in described first Access Network, use described mobile radio station to initiate the transfer of the described different base station of described first base station to described first Access Network from described first Access Network about the information of the load at described first base station and described different base station place.
13. method according to claim 12, wherein, described condition about transfer in netting comprises: the available capability that the described different base station in described first Access Network has is greater than the available capability of described first base station in described first Access Network.
14. method according to claim 12 may further comprise the steps:
Operate described mobile radio station with monitor simultaneously with described first Access Network in two or more layer 2 (L2) airlinks of different base station, to obtain available capability message from described different base station, transfer the stand-by period to reduce, and the best airlink of foundation by from be monitored airlink, selecting, to single layer 3 (L3) connection of core net.
15. method according to claim 12 may further comprise the steps:
Operate described mobile radio station with monitor simultaneously with described first Access Network in two or more layer 2 (L2) airlinks of different base station, to obtain available capability message from described different base station, transfer the stand-by period to reduce, and set up by the available airlink that is monitored, to two or more layers 3 (L3) connection of core net.
16. method according to claim 11 may further comprise the steps:
Operate described mobile radio station with monitor simultaneously with described first and second Access Networks in two or more layer 2 (L2) airlinks of different base station, to obtain available capability message from described different base station, to set up best airlink, to single layer 3 (L3) connection of core net by from be monitored airlink, selecting.
17. method according to claim 11 may further comprise the steps:
Operate described mobile radio station with monitor simultaneously with described first and second Access Networks in two or more layer 2 (L2) airlinks of different base station, to obtain available capability message from described different base station, to set up, to two or more layers 3 (L3) connection of core net by the available airlink that is monitored.
18. method according to claim 11, wherein, described condition about transfer between net comprises: the available capability that described second base station in described second Access Network has is greater than the available capability of described first base station in described first Access Network.
19. method according to claim 11 may further comprise the steps:
Operate described mobile radio station with the frequency of dynamic control cycle broadcasting from the available capability message of each network.
20. method according to claim 11, wherein, each Access Network in described first and second Access Networks is based on one of following wireless access technology: IS-95, CDMA200 1x, EV-DO, UMB, GSM, WCDMA, HSPA (high-speed packet access), LTE, WiMAX and WiFi wireless network.
21. a method that is used for providing the online load balance of radio communication wireless access may further comprise the steps:
Broadcasting is from the available capability message of each network at least two Access Networks, to indicate the available capability at each place, base station;
Use the described Access Network of mobile radio station wireless access, with the radio communication of described mobile radio station in receive available capability message from each base station; And
In first base station from first Access Network and available capability message that second base station in different second Access Network receives, about described first and the information of the load at described second base station place when satisfying, use described mobile radio station to initiate from described first base station to the transfer of described second base station about the condition transferred between the net between described first and second Access Networks.
22. method according to claim 21 may further comprise the steps: operate described mobile radio station with the frequency of dynamic control broadcasting from the available capability message of each network.
23. method according to claim 21, wherein, broadcasting is periodic broadcast from the available capability message of each network.
24. a method that is used for providing the transfer in the radio communication wireless access network may further comprise the steps:
Broadcasting available capability message is with the available capability at each place, base station in the indication wireless access network;
Use the described Access Network of mobile radio station wireless access, with the radio communication of described mobile radio station in receive available capability message from each base station; And
When from the available capability message of first base station and the reception of second base station, about described first and the information of the load at described second base station place when satisfying condition about the transfer between described first and second base stations, use described mobile radio station to initiate from described first base station to the transfer of described second base station.
25. method according to claim 24, wherein, described condition about transfer comprises: the available capability that described second base station has is greater than the available capability of described first base station.
26. method according to claim 24 may further comprise the steps:
Operate described mobile radio station with monitor simultaneously with described first Access Network in two or more layer 2 (L2) airlinks of different base station, to obtain available capability message from described different base station, transfer the stand-by period to reduce, and the best airlink of foundation by from be monitored airlink, selecting, to single layer 3 (L3) connection of core net.
27. method according to claim 24 may further comprise the steps:
Operate described mobile radio station with monitor simultaneously with described first Access Network in two or more layer 2 (L2) airlinks of different base station, to obtain available capability message from described different base station, transfer the stand-by period to reduce, and set up by the available airlink that is monitored, to two or more layers 3 (L3) connection of core net.
28. a wireless communication system comprises:
First wireless access network that comprises a plurality of base stations, each base station radio broadcasting available capability message is to indicate the available capability at each place, base station;
Second wireless access network that comprises a plurality of base stations, its based on the different wireless technology of described first wireless access network, the described second wireless access network radio broadcasting is from the available capability message of each base station, to indicate the available capability at each place, base station;
Device in the mobile radio station, it is used for the described Access Network of wireless access, with the radio communication of described mobile radio station in receive available capability message from each base station;
Device in the described mobile radio station, in its available capability message that is used for receiving when first base station and second base station second Access Network from first Access Network, about described first and the information of the load at described second base station place when satisfying, initiate from described first base station to the transfer of described second base station about the condition transferred between the net between described first and second Access Networks; And
Device in the described mobile radio station, it is used in the available capability message that first base station and the different base station first Access Network from first Access Network receive, about described first and the information of the load at described different base station place when satisfying, initiate from described first base station to the transfer of described different base station about the condition transferred in the net in described first Access Network.
29. system according to claim 28, wherein, one in described first and second Access Networks is the WiMAX network, and another in described first and second Access Networks is the EV-DO network.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US86735906P | 2006-11-27 | 2006-11-27 | |
| US60/867,359 | 2006-11-27 |
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| CN101193448A true CN101193448A (en) | 2008-06-04 |
| CN101193448B CN101193448B (en) | 2013-06-05 |
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