CN101083562A - Method for optimizing resources in radio system, and radio system - Google Patents

Method for optimizing resources in radio system, and radio system Download PDF

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Publication number
CN101083562A
CN101083562A CNA2007101287583A CN200710128758A CN101083562A CN 101083562 A CN101083562 A CN 101083562A CN A2007101287583 A CNA2007101287583 A CN A2007101287583A CN 200710128758 A CN200710128758 A CN 200710128758A CN 101083562 A CN101083562 A CN 101083562A
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network
radio
subscriber equipment
telecommunications
base station
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埃罗·斯拉丝托
奥提·希罗恩内米
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Nokia Oyj
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Nokia Oyj
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Abstract

The invention relates to a radio system and a method for optimizing resources in the radio system. And the method comprises: transmitting transmission network message about service quantity in transmission network of the radio system to the radio network of the radio system so that the transmission network makes the radio network and its elements connected with the kernel network of the radio system; service network element of the radio network transmits telecom link of user equipment via itself to the kernel network. And the method comprises: regulating telecom link between service network element and user equipment according to the transmission network message.

Description

Optimize the method and the radio system of the resource in the radio system
The application be that October 8, application number in 2002 are 02829740.7 the applying date, denomination of invention divides an application for the application for a patent for invention of " optimizing the method and the radio system of the resource in the radio system ".
Technical field
The present invention relates to optimize the method for the resource in the radio system, relate to base station, radio network controller and radio system.
Background technology
Along with to transmitting the needs of mass data by wireless communication system, and, the capacity of mobile communication system and the demand of resource are increasingly sharpened along with the number of users of continuous increase and the density of mobile device.Along with the continuous development of new technology, proposed following cordless communication network and should use several radio access technologies, rather than only used a kind of technology.Such as WCDMA (Wideband Code Division Multiple Access (WCDMA)), GSM/EDGE (global system for mobile communications/improved GSM strengthens the data rate technology) etc. are in whole world use or in constantly developing.In the near future, cordless communication network and wireless user equipment also will be supported the technology based on Internet protocol (IP) day by day.Along with the use of different technologies, network can utilize the coverage and the capacity characteristic of different technologies as a whole.The service quality (QoS) of not wasting in the resource ground supervising the network will be a key requirement.But all these produce the new demand of optimizing Internet resources and their use.
Use the communication network of packet-switched transmission can be realized as for example IP-based packet transmission networks.The IP grouping comprises that about the destination of grouping and the information of origin thereof this makes grouping be easy to circuit transmission in accordance with regulations.The destination-address of IP grouping causes among the spy in the router Route Selection to judge that judge by this Route Selection, grouping is sent to its destination.In circuit switching network, content is not known its destination, and network keeps keeping the connection of network capacity, continues as long as this connects.Concerning file transmits, the Route Selection operational excellence, and also for the real time traffic such as the voice and video TV, the same operational excellence of Route Selection as long as there are enough available network capacity, and is careful service quality (QoS).
When communication network was congested, for example the part communication network became when overload, perhaps will can have problems when congested when the expectation communication network.For example, if router or other network element receive the speed of data greater than the speed that can transmit data from router, can take place congested so.If allow traffic carrying capacity freely to flow to hop, for example mobile network's IP transmission is similar to so on the internet, and the weak hop that especially approaches the base station may become congested.The link failure that reduces transmission capacity can aggravate congestion.The use of the soft handover of reserve transport capacity (SHO) even can further worsen this situation.
In the prior art, advised when the destination route when congested, packet or left behind or be delayed.The grouping of lining up in the buffer in communication system can be left behind, so that produce the space that is used to arrive grouping.New grouping can be prevented from entering the congested part of communication system, is used for up to existence till the space of new data.But these technology have problems, for example dropped data or delay, and reduce service quality, so the especially variation of undesirable delay in real-time communication service.
From the viewpoint of coverage, must set up ratio near the bigger radio capability of the transmission capacity on the link of base station.But this can further increase the possibility that finishes under the congested situation, under congested situation, and from wireless viewpoint, rather than the viewpoint from transmitting, the switching from a sub-district to another sub-district is wise.Especially in the network based on WCDMA, soft handover load is debatable.In present system, be responsible for independent execution of provided for radio resources management (RRM) of the network of switching controls, in fact accept soft handover and connect, promptly cause the institute of the quantity of the SHO branch road that soft handover load changes greatly to change.All these can cause setting up more transmission capacity, so that can handle the situation from the traffic carrying capacity of radio net.This is debatable, because the foundation of new Internet resources is expensive.
Summary of the invention
The purpose of this invention is to provide a kind of improving one's methods of resource in the radio system of optimizing.
As one aspect of the present invention, a kind of method of optimizing the resource in the radio system is provided, described method comprises: send the transport network information of the traffic carrying capacity in the transmission network of relevant radio system the radio net of radio system to, transmission network makes radio net and network element thereof be connected with the core network of radio system; The service network unit of radio net is delivered to core network with the telecommunications connection of subscriber equipment via this service network unit; With according to transport network information, the telecommunications of adjusting between service network unit and the subscriber equipment connects.
As one aspect of the present invention, a kind of method of optimizing the resource in the radio system is provided, described method comprises: will send the radio net of radio system about the transport network information of the traffic carrying capacity in the transmission network of radio system to, transmission network is connected the core network of radio net and network element and radio system; And, adjust base station of (504) radio net and the soft handover that the telecommunications between the subscriber equipment connects according to transport network information.
As one aspect of the present invention, a kind of radio system is provided, comprising: core network; The radio net that is used for providing the telecommunications connection that is connected with core network to subscriber equipment, radio net comprises network element, one of network element has been configured to the effect of service network unit, and described service network unit is delivered to core network with the telecommunications connection of subscriber equipment via this service network unit; Connect the network element of radio net and the transmission network of connection radio net and core network; With the receiving system of reception about the transport network information of the traffic carrying capacity of transmission network; Radio system also comprises the adjusting device that is connected with receiving system, be used for adjusting according to transport network information the telecommunications connection between service network unit and the subscriber equipment.
As one aspect of the present invention, a kind of radio system is provided, comprising: core network; The radio net that is used for providing the telecommunications connection that is connected with core network to subscriber equipment, radio net comprises network element; Connect the network element of radio net and the transmission network of connection radio net and core network; With the receiving system of reception about the transport network information of the traffic carrying capacity of transmission network; Radio system also comprise be connected with receiving system, be used for adjusting the base station of radio net and the adjusting device of the soft handover that the telecommunications between the subscriber equipment connects according to transport network information.
In one aspect, the invention provides a kind of base station of radio system, described radio system comprises: core network; The radio net that is used for providing the telecommunications connection that is connected with core network to subscriber equipment, radio net comprises network element, one of network element has been configured to the effect of service network unit, and described service network unit is delivered to core network with the telecommunications connection of subscriber equipment via this service network unit; Connect the network element of radio net and the transmission network of connection radio net and core network; With the receiving system of reception about the transport network information of the traffic carrying capacity of transmission network, wherein, described base station comprises the adjusting device that is connected with receiving system, be used for adjusting according to transport network information the telecommunications connection between service network unit and the subscriber equipment.
In yet another aspect, the invention provides a kind of base station of radio system, described radio system comprises: core network; The radio net that is used for providing the telecommunications connection that is connected with core network to subscriber equipment, radio net comprises network element; Connect the network element of radio net and the transmission network of connection radio net and core network; With the receiving system of reception about the transport network information of the traffic carrying capacity of transmission network, described base station also comprises the adjusting device that is connected with receiving system, be used for adjusting according to transport network information the soft handover of the telecommunications connection between base station and the subscriber equipment.
In yet another aspect, the invention provides a kind of radio network controller of radio system, described radio system comprises: core network; The radio net that is used for providing the telecommunications connection that is connected with core network to subscriber equipment, radio net comprises network element, one of network element has been configured to the effect of service network unit, and described service network unit is delivered to core network with the telecommunications connection of subscriber equipment via this service network unit; Connect the network element of radio net and the transmission network of connection radio net and core network; With the receiving system of reception about the transport network information of the traffic carrying capacity of transmission network, wherein said radio network controller comprises the adjusting device that is connected with receiving system, be used for adjusting according to transport network information the telecommunications connection between service network unit and the subscriber equipment.
In yet another aspect, the invention provides a kind of radio network controller of radio system, described radio system comprises: core network; The radio net that is used for providing the telecommunications connection that is connected with core network to subscriber equipment, radio net comprises network element; Connect the network element of radio net and the transmission network of connection radio net and core network; With the receiving system of reception about the transport network information of the traffic carrying capacity of transmission network, described radio network controller also comprises the adjusting device that is connected with receiving system, be used for adjusting according to transport network information the soft handover of the telecommunications connection between base station and the subscriber equipment.
Other embodiments of the invention have been disclosed in the dependent claims.
The present invention has several advantages.The invention enables when optimizing the resource of radio system, radio system can be considered transport load situation.An advantage of the present invention is to determine according to the worst situation the size of required transfer resource.So,, therefore in the structure of Internet resources, can realize cost savings because new network resources demand is reduced.
An advantage of the present invention is under congested situation, perhaps when predict congestion, for example in the busy hour, can adjust and make the extra load owing to soft handover to minimize.
Another advantage is that network can be suitable for load variations better, and does not have fierce action, for example abandons data, abandons the quality that data can reduce service.In addition, when data in most congestion links needn't be dropped data, the data that abandon can not load other link, and unnecessarily utilize transfer resource and other quality of communicating by letter of reduction.
Another advantage is more effectively to utilize Internet resources, does not play limiting factor because insert transmission network.Thereby, do not need excessively definite size that inserts transmission network yet.
Another advantage of the present invention is to reduce the vibration in the traffic carrying capacity mixture (traffic mixture).A kind of more stable traffic mixture is an advantage, because for example in router, parameter is adjusted to the traffic mixture of a certain type.
Description of drawings
Below, will illustrate in greater detail the present invention with reference to preferred embodiments and drawings, wherein:
Fig. 1 represents an example of radio system;
Fig. 2 represents an example of the general protocol model of radio access system;
Fig. 3 represents another example of radio system;
Fig. 4 is the flow chart of the method for the radio resource in the graphic extension managing radio system;
Fig. 5 is the flow chart of the other method of the radio resource in the graphic extension managing radio system;
Fig. 6 represents an example to the traffic load of radio net report;
An example application of the method for resource is optimized in Fig. 7 graphic extension;
Fig. 8 represents an example of the soft handover load behavior in the radio plot.
Embodiment
Referring to Fig. 1, radio system is described as an example of the system that can use embodiments of the invention.In Fig. 1, in the radio system of simplifying, embodiment is described, the radio system of described simplification comprises the major part of radio system: core network (CN) 100, radio access network 120,130,160, and subscriber equipment (UE) 180.
Fig. 1 represents to use different each general structure for the improvement 3G radio system of the different technologies of radio access network and mutual operation, the 2nd generation, 2.5 generations and the 3rd generation radio access network network element coexist as wherein.The 2nd generation radio system represent by GSM (global system for mobile communications), 2.5 for radio system by based on GSM's, use EDGE technology (improved GSM strengthens the data rate technology) to improve message transmission rate, and be used in the radio system representative that realizes transmitted in packets in the gprs system (General Packet Radio System).The 3rd generation radio system by the radio system representative of IMT-2000 (International Mobile Telecommunication 2000) and UMTS (universal mobile telecommunications system) at least.
The core network 100 of radio system is connected with external network 180,182.External network 180,182 is by PLMN PLMN 180 or public switch telephone network PSTN 180 and internet 182 representatives.
Base station sub-system (BSS) 160 based on GSM comprises base station controller (BSC) and base station transceiver (BTS) 162,164.Base station controller 166 control base station transceivers 162,164.Interface 106 between core network 100 and the BSS 160 is called as the A interface.Interface between BSC 166 and the BTS162,164 is called as the A-bis interface.On the principle, realize that the device of radio path and their function should be arranged in the management devices of base station transceiver 162,164 and base station controller 166.Naturally, realization can depart from this principle.As known to those skilled in the art, radio system can comprise for the sake of clarity, and several base station sub-systems 160 of in Fig. 1, not describing.
UMTS radio access network (UTRAN) 130 comprises radio network sub-system (RNS) 140,150.Each radio network sub-system 140,150 comprises radio network controller (RNC) 146,156 and Node B 142,144,152,154.Node B is the suitable abstract concept that warp term " base station " commonly used is replaced.Between the different radio network sub-system RNS 140,150, perhaps more particularly the interface between the radio network controller (RNC) 146,156 is called as Iur.In UMTS, the interface between core network 100 and the UTRAN 130 is called as Iu interface 108.Interface between RNC 146 and the Node B 142,144 is called as Iub interface.Functional with regard to it, radio network controller 140 approximate base station controllers 166 corresponding to gsm system, Node B 142,144 is corresponding to the base station 162,164 of gsm system.Also exist identical device both to serve as the base station, serve as Node B again, promptly this device can be realized the solution of TDMA and WCDMA radio interface simultaneously.
Radio system also can use the radio access network based on the IP technology, that is, and and IP RAN (Internet protocol radio access network) 120.But Fig. 1 is expressed as IP RAN an example of the radio access network (RAN) of Application Example.Because based on the radio access network of IP technology and the constantly development of their architecture, so IP RAN 120 expressions of Fig. 1 describe the illustration architecture of some major functions of this RAN based on the IP technology, and implementation can change.The IP RAN 120 that describes among Fig. 1 be based on can also with other more conventional radiotechnics and network, the BSS (base station sub-system) that uses among the UTRAN (UMTS radio access network) for example, GSM (global system for mobile communications) or the radio access network platform of the interactional IP technology of GERAN (GSM EDGE radio access network).IP RAN is connected with UTRAN 130 by interface 112, is connected with BSS 160 by interface 114, is connected with core network 100 by interface 110.
IP RAN 120 can be used on following each group object of describing among Fig. 1 and briefly describes: IP base station (IPBTS) 126,128, with IP RAN gateway 122, radio access network gateway (RAN gateway for example, RNGW) 121, with the circuit switched gateway that is used for the circuit switched traffic carrying capacity (CS gateway, CSGW) 123.IP RNA gateway 122 generally also can comprise other parts, for example controls the RNA access server to the visit of network.IP RNA 120 also can comprise other parts of not describing among Fig. 1, for example server and router.
In IP RAN 120, most function plans of central controller (RNC 146 and BSC 166) are transferred to IP base station 126.Particularly, all radio protocols will be transferred to IP base station 126.In order to realize configuration and radio resource (RR) function, perhaps, need be positioned at the entity outside the IP base station 126 for the radio access network of routine or base station sub-system or to the gateway interaction of core network 100.But, in the architecture of more improvement, still can use RNC and BSC.
Fig. 1 also illustrates the coverage of the base station of different radio access networks, i.e. sub-district.Thereby, the coverage of sub-district 143,145,153,155 representation nodes 142,144,152,154, the coverage of base station 162,164 is represented in sub-district 163,165.A sub-district can be served in Node B 142,144,152,154 or base station 162,164, as shown in fig. 1, can be under the situation of segmentation sub-district in the base station perhaps, can serve several sub-districts.Several sub-districts also can be served in an IP base station.In Fig. 1, the coverage of IP base station (IP BTS) 126 is by sub-district 124,125 expressions, and the coverage of IP BTS 128 is by sub-district 127,129 expressions.
The subscriber equipment of graphic extension (UE) 170 preferably not only is applicable to the 2G system but also is applicable to the 3G system among Fig. 1, comprises that at least one is used to connect the transceiver with the dedicated radio link of radio access network 120.In general, subscriber equipment 170 is mobile radio stations, also comprises antenna, user interface and battery.There are various subscriber equipmenies at present, for example are installed in equipment and portable set in the automobile.Subscriber equipment 170 also can have and personal computer or the similar character of portable computer.Subscriber equipment 170 is by radio access network, and for example the base station of IP RAN 120 is connected with radio system, utilizes the visit of telecommunications connection to the core network of radio system so that provide to the user.Telecommunications connects the dedicated radio link that comprises with the base station, and the connection between base station and the core network.
Referring to Fig. 2, utilize UTRAN as an example, the general protocol model of radio access network is described.Be similar to the protocol model of other radio access network, UTRAN built-in function and agreement can be divided into two level courses: radio-network layer (RNL) 200 and transport network layer 210.In vertical direction, protocol model comprises three planes, (radio net) control plane 202, (radio net) user plane 212 and transmission network control plane 208.Utilize transmission network user plane 220,, transmit the control plane 202 and the user plane 212 of radio-network layer 200 by transport network layer.Signaling bear 206 in the transmission network user plane 220 of application protocol 204 in Fig. 2 graphic extension radio-network layer 200 and data flow 214 and transport network layer 210, Data-carrying 216 and physical layer 205.Also illustrate signaling bear 226 and Access Link Control Application Protocol (ALCAP) 224 in the transmission network control plane 208 of transport network layer 210 among Fig. 2.Control plane 202 transmits signaling information, and user plane 212 transmits all information that the user sends and receives.Radio-network layer 200 comprises and radio, i.e. relevant all functions and the agreement of RAN, perhaps cell-specific agreement.Transport network layer 210 representatives have been selected for RAN, for example standard transmission technique of the IP among IP among the UTRAN or ATM (asynchronous transfer mode) or the IP RAN.In transport network layer 210, signaling bear is always by operation and bookkeeping (Q﹠amp; M) set up.The signaling protocol that is used for ALCAP 224 can be the signaling protocol with the signaling protocol same type that is used for application protocol 204, or dissimilar signaling protocols.When signaling bear was in place, the application protocol 202 in the radio-network layer 200 can require Data-carrying 216 to be set up by ALCAP 224, and ALCAP 224 has all information needed about the user plane technology.Be similar to the Iu interface of packet switching side, also can use pre-configured Data-carrying, in this case, do not have ALCAP 224,, also do not need transmission network control plane 208 so neither need signaling bear 226.
Can utilize logic entity to describe each layer of protocol model.A physical network element can comprise the more than one logic entity that is used for each layer.In the document of this area and standard, can find out of Memory about radio communications system.
Radio system for example uses UTRAN or IP RNA generally to have two basic logic parts that are used for the process user plane traffic as the system of their radio access system: the part and the part that relates to transmission that relate to radio communication.The part that relates to radio communication comprises for example provided for radio resources management (RRM), radio interface, Iub interface, and radio protocol, RRC (radio resource control) for example, RLC (radio link control) and MAC (medium access control).RRM comprises such as switching controls, power control, the algorithm of permission control (AC) and packet scheduling and so on, and code administration.The part that relates to transmission comprises the transmission technology and the controlled function thereof of selection.The transmission technology of selecting is, for example among IP-based transmission technology among the IP RAN and the UTRAN based on the transmission technology of IP or ATM (asynchronous transfer mode).
Because the radio resource costliness, so the part that relates to radio communication of radio access network attempts to optimize their use.There are the many methods that are applicable to all radio controlled controlled function.For example, the entity that is called management of public resources server (CRMS) can be used to the management of radio resource control.In this manual, term " radio manager " (RM) is used to all radio controlled controlled function.
The part that relates to transmission of radio access network attempts to optimize transfer resource, and controls their use.For example, the method that is called differential service (DiffServ) can be used for dissimilar traffic carrying capacitys, and for example the real-time or non real-time traffic carrying capacity in the IP network guarantees the QoS (service quality) of certain level.When using differential service, be used in the content-related information flag data grouping of importance and delay-sensitive aspect and grouping.In this manual, term " delivery manager " (TM) is used to the controlled function of all transmission controls.Suppose that in addition TM has the information about the load of transmission network, and preferably also have information about the layout of transmission network.
The part that relates to radio communication of radio system and relate on the parts of traditional of transmission independently fully and is independently made their decision.But these decisions influence another part and functional.For example, radio manager (RM) is made the decision of the application of soft handover (SHO) in the telecommunications connection that relates between subscriber equipment and base station.But, the serious load that increases in the transmission network of these decisions.
Handoff functionality is one of most important approach that realizes at radio net user mobility.Utilize to switch and can keep being connected with the telecommunications of mobile subscriber equipment, its main thought be when subscriber equipment when the coverage of a sub-district is transferred to the coverage of another sub-district, foundation is connected with the new of Target cell, release is connected with old sub-district.
Activating the reason of switching has several.The basic reason of switching is that dedicated radio link no longer satisfies the standard of setting, for example signal quality, user mobility or distribution of traffic.When the quality degradation of radio signal is under the parameter of definition, carries out signal quality and switch.The signal measurement that described degeneration is undertaken by subscriber equipment or base station detects.
When the traffic capacity of sub-district reaches maximum or approaches maximum, distribution of traffic takes place switch.Be similar under this situation, the subscriber equipment that is positioned at the edge of the higher sub-district of load can be transferred to the lower neighbor cell of load.
Switching can be divided into direct-cut operation (HHO), soft handover (SHO) and More Soft Handoff.In direct-cut operation, before producing new the connection, discharge old connection.In inter-frequency hard handoffs, new radio inserts the old carrier frequency that the carrier frequency that connects is different from subscriber equipment, and in intra-frequency, it is identical with old carrier frequency that new radio inserts the carrier frequency that connects.If different carrier waves is assigned to radio network cell, but switches between frequency of utilization so, for example switch between frequency of utilization between the macro cell of the use different carrier in identical coverage and the micro cell.In addition, between two kinds of different radio access networks,, but switch between occurrence frequency for example between UTRAN and the GSM or between IP RAN and GSM.These also can be called as between system and switch, and perhaps switch between RAT (radio access technologies), and they all are to switch between frequency.Have only when switching between the same complete back-up system of subscriber equipment, switching is only possible between system.
In soft handover, before discharging old connection, subscriber equipment is set up and is connected with the new of network.The metrical information that the UE collection activity is concentrated, described active set is the tabulation of base station, perhaps more particularly, UE has and RAN simultaneously by it, for example the tabulation of the radio plot of the connection of UTRAN or IP RAN.Thereby active set is the tabulation of satisfying about the sub-district of switching the standard that is provided with.For example, in the WCDMA system, the most switching is soft handover in the frequency, and wherein, the adjacent base station that relates in the switching utilizes identical frequency transmission.Soft handover carries out belonging between two radio plots of different base station.But for example in UTRAN, the sub-district must not belong to identical RNC, and still, the RNC that relates in the soft handover is responsible for coordinating the execution of soft handover on the Iur interface.Call out with regard to circuit switched, if the sub-district in the radio net is less, subscriber equipment is almost carried out soft handover always so.Connect in the time of between UE and the network and be called as soft handover legs (SHO branch road).Soft handover legs is the dedicated radio link that comprises between UE and the base station, and the connection that may transmit connection between base station and the service network element, and described service network unit will send to core network via the connection of the UE of this service network unit.
Also there are several distortion of soft handover, for example More Soft Handoff and soft-More Soft Handoff.In More Soft Handoff, new signal or be added in the active set or deleted from active set is perhaps replaced by the stronger signal of another sector of same base.When simultaneously soft handover and More Soft Handoff taking place, use term " soft-More Soft Handoff " usually.
Basic handoff procedure generally comprises and is called measuring phases, three Main Stage of decision stage and execution phase.The all types of switchings of network management.For this reason, network is measured along uplink direction, receives the UE measurement result on down link.Subscriber equipment is constantly measured during connecting, the signal strength signal intensity of the neighbor cell that is used to switch, and the result reported to network, report to radio resource control (RRC) (for example in UTRAN, radio resource control (RRC) is arranged in RNC).Sub-district to be measured can be divided into three different cell set: the small active area collection is monitored cell set and detected cell set.Each cell set is measured in the sub-district according to their requirement.
UE measures and can comprise for example interior measurement of frequency, for example about having the signal of same frequency, measurement to the intensity of downlink physical channel, measuring business volume, the for example measurement of uplink traffic, mass measurement, for example measurement of mass parameter (such as the downlink transmission block error rate), measure with content, for example user equipment transmitting power is measured and the subscriber equipment received signal level is measured.According to change such as best cell, the change of signal-interference ratio (SIR), the standard of change of regular reporting or triggered time or main Common Pilot Channel (CPICH) signal level and so on can trigger the UE measurement event.The metrical information that the UE collection activity is concentrated.When the signal strength signal intensity of BTS transmission surpassed increase threshold value among the UE, BTS was added in the active set, if UE also is not in the SHO state, UE enters SHO so.UE is not independent to add the base station in its active set, perhaps delete the base station from its active set, but network is by the modification of signaling gear request to active set.
The standard that the measurement result of UE and BTS report and handoff algorithms are set forms the basis of handover decisions.Handoff algorithms depends on realization on the contrary more, and can quite freely be used not by standardization.Utilize the example of the decision criteria of handoff algorithms, can explain the General Principle of handoff algorithms based on the pilot signal strength of subscriber equipment report.In illustrative handoff algorithms, use following term and relative parameter: active set, the upper limit, lower limit and Handover margin.In general, these parameters are numerals relatively, for example with respect to the numeral of other signal of base station.The upper limit is the level that the signal strength signal intensity sum of the sub-district in the active set that connects is in the maximum receivable level that satisfies required QoS.Therefore, lower limit is that the signal strength signal intensity sum of the sub-district in the active set that connects is in the level with regard to the minimum acceptable level of the QoS that asked, that is, the signal strength signal intensity of connection should not be lower than lower limit.In this example, term " Handover margin " is that the signal strength signal intensity at neighbor cell begins to surpass a certain quantity of signal strength signal intensity of current area and/or continues the predefined parameter of some setting sometime.
In this example, we UE that is included among the A of sub-district of supposition moves towards neighbor cell B, and the present connected pilot signal of UE moves along with UE and worsen, and approaches lower limit.This can cause handover trigger in following three phases: the intensity of signal A reaches lower limit.According to the UE measurement result, radio net notices that the adjacent signals B with the intensity that is enough to improve quality of connection exists.Radio net adds signal B in the active set, and afterwards, UE has two sum signals that connect, and can benefit from signal A and signal B simultaneously that arrive radio access network, that is, in this example, lower limit can be called as the increase threshold value.When UE moved, the quality of signal B began to become and is better than the quality of signal A, and radio net begins Handover margin and calculates.At last, the intensity of signal B meets or exceeds the lower limit of definition, that is, the intensity of signal B is enough to satisfy the required QoS that connects.On the other hand, the intensity of sum signal is crossed the upper limit, begins system is caused extra interference.Radio net erasure signal A from active set consequently, that is, in this example, the upper limit can be called as cancels threshold value.Active set generally changes between 1 signal to 3 signal, but its big I changes.In the above example, the big I of active set changes between 1 and 2.
Usually, network settings cancel threshold parameter less than increasing threshold value, prevent from active set deletion radio plot too early.The exact value of cancelling parameter is a system performance parameter, and it can dynamically be provided with.
When the mobile at random direction of UE changed, UE may be immediately towards initial cell (the sub-district A in this example) travelling backwards after switching for the first time.This causes same sub-district by the what is called exchange transition effects that add active set repeatedly and delete from active set.This is harmful to power system capacity and overall performance.Utilize Handover margin or lag parameter, can avoid radio access network is caused these bad switchings of extra signaling load.Utilize timer also can avoid this effect.When signal strength values is reduced to when being lower than preset threshold, in network, can start and cancel timer.If before the expiration of the time of timer, the signal of base station intensity level is lower than preset threshold, so finally removes this base station from active set always.In order to prevent alternately transition effects, the time of timer must long enough.
Radio access network use to increase threshold value and cancels threshold value and determines when and need active set to upgrade.These threshold values are applied to the UE measurement result, and UE must use current threshold value to trigger measurement report is sent to radio access network.When being monitored the sub-district and surpassing the increase threshold value of RAN definition, the measurement report that comprises latest result is sent to network.According to control algolithm, network can send to UE with the active set updating message subsequently.Control algolithm also comprises other parameter and the Consideration except that increasing threshold value.For example, the sub-district may extremely be transshipped, so that does not allow new connection in this sub-district.
Be identified as the possible candidate of switching, the sub-district that still is not added into active set as yet is included in supervision and concentrates.RAN indicates these sub-districts to UE in neighbor cell list, UE has to monitor these sub-districts according to given rule.Surpass the increase threshold value if monitor a certain sub-district of concentrating, will trigger measurement report so.Detected set comprises when monitoring, all other sub-districts that UE finds, and be not included in sub-district in the neighbor cell list.
If RE transfers to another sub-district from a sub-district, rrc layer is responsible for keeping the connection between UE and the network so.Make in RAN RRC and switch decision, except other many factors, handover decisions is also based on the UE measurement result.The active set updating message of utilizing network to send, management SHO, that is, UE should not upgrade active set separately, but should be according to these information updating active sets.Compare with the single UE that is connected of standard that has to network, the UE among the SHO always consumes more Internet resources.So what determine which UE need be from the additional gain of SHO is network.
The mode of the resource in the radio system is optimized in Fig. 3 graphic extension.Utilization illustrates embodiment based on the system of IP RAN as an example in the radio system of simplifying.But, the system that embodiment is not limited to provide as an example, on the contrary, those skilled in the art can be applied to this solution have other radio system of essential attributes or their combination.
The radio system of Fig. 3 comprises a radio access network (in this case, IP RAN120), and still, radio access network also can be a certain other radio access network, for example UTRAN that describes among Fig. 1.
Radio system comprises at least one unit of subscriber equipment 170.The radio net 320 that provides telecommunications to connect to subscriber equipment 170 is provided the IP RAN 120 of Fig. 3, with the network element that is connected radio net 320, and the transmission network 322 that connects the core network 100 of radio net 320 and radio system.Telecommunications connects by subscriber equipment that connects mutual communication in radio company and base station to be set up, that is, calling or the transfer of data set up between the different UEs via the base station connect.The radio plot that the base station produces is more or less overlapping usually, so that vast coverage is provided.Radio net 320 comprises base station 324,326,328, with regard to IP RAN 120, and base station the 324,326, the 328th, IP base station.First base station 326 provides dedicated radio link 306 in the radio plot 336 to subscriber equipment 170, so that provide visit to radio system to it.The logic function of radio net 320 is the radio plots 336,338 and 334 that are provided for radio transmission and reception to subscriber equipment.The logic function of transmission network 322 is the connections that are provided to core network 100 to radio plot 334,336,338.A base station can comprise several radio plots, but for the sake of clarity, does not describe these radio plots among Fig. 3.
IP RAN 120 also comprises radio access network gateway 121,123, and gateway 121,123rd is from core network and the access point of other radio access network to IP RAN.The radio access network gateway can comprise such gateway, for example is used for the circuit switched gateway (CSGW) 123 and the radio access network gateway (RNGW) 121 of circuit switched communication.IP RAN generally also can comprise other RAN gateway, for example controls the radio access network server (RNAS, RAN access server) to the visit of radio access network.Transmission network 322 is connected with CSGW 123 by connecting 314, is connected with RNGW 121 by connecting 316.Connecting 314 and 316 all is the part of transmission network 322.In the example of Fig. 3, connect 314,316 and be realized as the IP connection, but their realization is not limited to IP; Also can use other suitable technology.
With regard to UTRAN (referring to UTRAN among Fig. 1 140 and RNS 14-, 150), radio access network comprises the Node B that is connected with RNC by Iub interface.
The core network of describing among Fig. 3 100 can comprise the core network in different generations, and for example the 2G core network 352,3G core network 354,3G packet core network 356 and 2G packet core network 358.2G core network 352 comprises the 2G mobile station controller (2G MSC) 353 that is connected with CSGW 123 by interface A.3G core network 354 comprises the 3G mobile station controller (3G MSC) 355 that is connected with CSGW123 by Iu-CS interface.3G packet core network 356 is connected with RNGW 121 by the Iu interface.2G packet core network 358 is connected with transmission network 322 by the Gp/IP interface.The effect of the unit of service network together of the network element of radio net 320, service function is finished in this service network unit, in other words, by this service network unit, the telecommunications connection of subscriber equipment 170 is sent to core network 100, that is, its termination core network interface and RRC (radio resource control).Always there is a service network unit in each UE that is connected for having with RAN.With regard to IP RAN, this service network unit is serving BS (service IP BTS), and with regard to UTRAN, this service network unit is service radio network controller (RNC).Radio net 320 also can comprise a drift network element, and with regard to IP RAN, this drift network element is called as drift IP BTS, and with regard to UTRAN, this drift network element is called as Drift Radio Network Controller.The effect of drift network element just when connecting the sub-district that need use the network element control of being drifted about, is provided for the radio resource that UE connects to the service network unit.Service network unit and drift network element can change their position, that is, the drift network element can play the service network unit after a while, and vice versa.
In radio system, the telecommunications of UE connects and can be anchored (anchoring) on a certain network element, for example is anchored on the base station of radio net.In IP RAN, term " anchor " can be used to describe service IP BTS function by the situation that does not provide the BTS of radio resource to provide to UE.In UTRAN, this term can be used to describe the situation when UE does not have connection to the arbitrary cells of Serving RNC control.
The radio system of Fig. 3 also comprises a radio manager 305 that is connected with radio net 320, in the controlled function and managing radio network of the control that is used to realize that all relate to radio communication, and the radio resource between base station and the subscriber equipment.Radio manager 305 generally is configured to receive radio capacity information, and radio capacity information can be expressed as the cell load of radio plot.For example, radio manager 305 can be by one of RAN public server, and the entity that for example is called management of public resources server (CRMS) is realized.But the realization of present embodiment is not limited to CRMS, and on the contrary, radio manager 301 can be any entity that is configured to control the radio resource of radio system.
The radio system of Fig. 3 also comprises the delivery manager 303 that is connected with transmission network 322, is used to realize that all relate to the controlled function of the control of transmission, and the management transport network resources.Delivery manager 303 has the load about transmission network, and the information of the layout of transmission network.Delivery manager 303 is configured to receive the transport load information of the transmission network 322 that can use about radio plot.For example, delivery manager 303 can realize by the entity that is called IP transmission resource manager (ITRM), the applicant in first to file (PCT/IB02/00919), introduced IP transmission resource manager (ITRM), this application is contained in this as a reference.ITMR belongs to transmission network 322 logic architectures, and its management also monitors leap IP transmission network, rather than the resource of the access of core network part.But the realization of embodiment is not limited to ITRM, and on the contrary, delivery manager 303 can be any entity that is configured to receive about the information of the traffic load of transmission network and layout.
Delivery manager 303 and radio manager 305 can realize in common unit, for example be embodied as the part of common manager entity 300, but, they also can be embodied as individual components respectively, server independently for example perhaps is embodied as the part or the function of other logic entity of radio access network.
Radio system also comprises by connecting 323, reception is about the receiving system 301 of the transport network information of the traffic carrying capacity of transmission network, with be connected with receiving system by being connected 321, be used for according to transport network information, adjust the service network unit of radio net and the adjusting device 302 that the telecommunications between the subscriber equipment connects.In one embodiment, adjusting device 302 is adjusted the base station of radio net and the soft handover that the telecommunications between the subscriber equipment connects according to the transport network information that receiving system 301 receives.
Receiving system 301 and adjusting device 302 can be realized as the part of radio manager RM function, such as a part that is embodied as the CRMS function, perhaps be realized as the part of delivery manager TM function, such as a part that is embodied as the ITMR function, perhaps their function can be divided between RM 305 and TM 303.In this case, TM 303 can realize in identical parts with RM 305, is perhaps independently realizing in the parts, as long as the signaling between the solution parts.Receiving system 301 and adjusting device 302 also can be realized as the part or the function of other logic entity of radio access network.For example, receiving system 301 and adjusting device 302 can be realized in IP BTS 324,326,328, perhaps with regard to UTRAN, can realize in RNC.
Receiving system 301 receives the measurement result and the report of the traffic load of indication transmission network 322.Traffic load also can be expressed as the transmission capacity of transmission network 322.
The adjusting device 302 indication transport load information that receiving system 301 is attached thereto to them.Adjusting device 302 is subsequently according to transport network information, and the telecommunications of adjusting between service network unit and the subscriber equipment 170 connects.Especially, adjusting device 302 is used to according to transport network information, adjusts the base station of radio net and the soft handover that the telecommunications between the subscriber equipment connects.
Fig. 3 has represented that UE 170 wherein is in the situation of soft changing state.Subscriber equipment 170 is communicated by letter with first base station 326 by dedicated radio link 306, and sub-district 336 is included in the active set of UE 170.UE 170 measures the public guide frequency of first base station 326, also measures the public guide frequency of second base station 324 and the 3rd base station 328 simultaneously.Also set up dedicated radio link 304,308 between UE 170 and BTS 324 and BTS 328 subsequently, so that provide by the connection of these base stations to core network 100, sub-district 334 and sub-district 338 are added in the active set that comprises sub-district 336.Connect in the time of between UE 170 and the network and be called as soft handover legs (SHO branch road), they comprise the dedicated radio link 304,308 between UE 170 and the base station 324,328, the transmission that also comprises base station 324,328 and serve as between the network element (with regard to IP RAN is service IP BTS, is Serving RNC with regard to UTRAN) of service network unit connects.The generation of SHO branch road and keep the load that has increased transmission network 322.We suppose that receiving system 301 receives about the heavy or congested transport network information of load in the indication transmission network 322 of transmission network 322.To adjusting device 302 these information of indication.In one embodiment, according to transport network information, adjusting device 302 is adjusted the base station of radio net and the soft handover that the telecommunications between the subscriber equipment connects.Load in transmission network 322 changes, and when for example reducing, receiving system 301 is received relevant therewith information, and to adjusting device 302 these information of indication, adjusting device 302 considers that this load changes, and adjusts soft handover according to the transport network information of upgrading.
In Fig. 3, we suppose that also BTS 326 is service network unit, are serving BTS 326 in this case.BTS 326 is connected with transmission network 322 by connecting 317, and BTS 324 is connected with transmission network 322 by connecting 319, and BTS 328 passes through connection 318 and is connected with transmission network 322.Connect 317,318,319 and belong to transmission network 322.Serving BTS 326 is connected with BTS 324 by connecting 315, is connected with BTS 328 by connecting 313.Connecting 313,315 also is the part of transmission network 322, and in fact also comprises 324,326,328 connections 317,318,319 to transmission network 322 from the base station, that is, connect 313 and comprise connection 317,318, connects 315 and comprises connection 317,319.The telecommunications that serving BTS 328 is kept an eye on UR 170 between serving BTS 326 and the core network 100 connects.This telecommunications connection covers the base station, the dedicated radio link of BTS 324 for example, for example connect 304, and in IP RNA, if base station 324 is drift base station, telecommunications connects the connection 315 that comprises between this drift base station and the service base station BTS 326 so, and the connection between serving BS 326 and the core network 100.Under soft handover situation, this telecommunications connects and comprises dedicated radio link 306,304,308, and serving BTS 326 with drift about being connected between the BTS 324,328, promptly connect 315 be connected 313, also comprise the connection between serving BTS 326 and the core network 100.With regard to UTRAN, Serving RNC is delivered to core network 100 with the telecommunications connection of UE, and this telecommunications connects all dedicated radio link that comprise between UE 170 and the core network 100 and is connected with transmission.
As previously mentioned, receiving system 323 is received about the heavy or congested transport network information of load in the indication transmission network 322 of transmission network 322.To adjusting device 302 these information of indication.In one embodiment, according to transport network information, the telecommunications that adjusting device 302 is adjusted between service network unit and the subscriber equipment connects.In our example, adjusting device 302 is according to transport network information, and the telecommunications of adjusting between serving BTS 326 and the UE 170 connects.Equally, when the load in the transmission network 322 changes, receiving system 323 is received relevant therewith information, and to adjusting device 302 these information of indication, adjusting device 302 considers that this load changes, and the telecommunications of adjusting between service network unit 326 and the UE 170 according to the transport network information of upgrading connects.
In one embodiment, when the telecommunications between adjustment service network unit and the subscriber equipment connects, adjusting device 302 can be according to transport network information, adjusts the base station of radio net and has the soft handover that the telecommunications between the subscriber equipment with the dedicated radio link of this base station is connected.
In one embodiment, for the collection that takes in sail upgrades, adjusting device 302 is adjusted the soft handover standard.This can adjust the SHO boundary that triggers soft handover by using adjusting device 302, perhaps on the other hand, adjusts the SHO hysteresis limits that triggers soft handover and realizes.More particularly, adjusting device 302 can be used to perhaps on the other hand, adjust the SHO hysteresis limits that triggers soft handover measurement report by trigger the boundary of soft handover measurement report according to the transport network information adjustment, adjusts the SHO standard.In another embodiment, adjusting device 302 is used to still adjust the transmission to the active set updating message of UE 170 by keeping old boundary and hysteresis limits, adjusts SHO.In another embodiment, for the collection that takes in sail upgrades,, do not send updating message even the UE measurement result is indicated when upgrading reason yet.In another embodiment, adjusting device 302 is used to adjust SHO boundary or hysteresis limits by the relative signal intensity about the connection of the telecommunications between base station and the subscriber equipment, adjusts SHO.Also can adjust the SHO boundary and the hysteresis limits of SHO standard and triggering measurement report separately about each handoff leg.
In one embodiment, adjusting device 302 is adjusted the number of the soft handover legs that allows about UE 170, that is, only allow to produce soft handover legs between the base station of some and sub-district.In one embodiment, adjusting device 302 is two SHO branch roads with the numerical limitations of SHO branch road.
In another embodiment, adjusting device 302 is adjusted the admissibility of soft handover and a certain service, that is, soft handover may not use with all services together.For example, may not allow soft handover and non real-time (NRT) service use together arbitrarily, perhaps only allow to be used for some NRT service.The type of the operable service of described restriction, the priority of traffic category or connection are the basis.For example, may only allow soft handover and so-called gold user to use together, and not allow to use with so-called silver user or bronze user.
In one embodiment, adjusting device 302 is adjusted the utilization rate of the soft handover of each base station.In another embodiment, adjusting device 302 is adjusted the utilization rate of the soft handover of each radio plot.This can realize by the limit of for example setting about the SHO utilization rate of some or all radio plot or base station.This limit can be for example from the traffic peak (kbps) of a certain sub-district or BTS.
In one embodiment, adjusting device 302 is adjusted into the bit rate that the carrying between the network element of radio net distributes.In general, Iur in adjusting UTRAN or the distribution bit rate on the Iub interface, perhaps during the distribution bit rate on the Iur ' interface among the IP RAN, adjusting device 302 is the littler bit rate of some non real-time (NRT) service assignment.In one embodiment, the bit rate of distribution also can be by multiplexed, that is, the distribution bit rate of several carryings is adjusted simultaneously.This can be by only allowing the position of some to all carryings, promptly certain bit rate is perhaps by provide bigger bit rate to realize to one or several connection at every turn.
In one embodiment, adjusting device 302 is adjusted the anchor that subscriber equipment is connected with the telecommunications of the network element of radio net.In one embodiment, anchor is limited.In another embodiment, do not allow any anchor.For example, when the congested or heavy load in the transport network information indication network of receiving by receiving system 301, adjusting device 302 can be used to forbid that the telecommunications connection of UE 170 is anchored to the base station, for example is anchored to BTS 326.This means that service function is not fixed in BTS 326, other base station on the contrary, for example BTS 328 can play serving BS.
Disclosed function can realize in the different piece of radio system by software, usually be realized as processor and software thereof, but various hardware solutions also are feasible, for example circuit or the one or more application-specific integrated circuit ASIC that is made of logic module.These different mixing that realize also are feasible.When selecting implementation method, those skilled in the art will consider about device size and energy consumption, essential processing capacity, the requirement that production cost and output are set.
Referring now to the flow chart of Fig. 4,, first method of optimizing the resource in the radio system is described.
This method starts from 400.In 402, be transmitted to the radio net of radio system about the transport network information of the traffic carrying capacity in the transmission network of radio system.Transmission network connects the network element of radio net and the core network of radio net and radio system.
In 404, the effect of the unit of service network together of the network element of radio net is used for by this service network unit, the telecommunications of subscriber equipment is connected send to core network.
In 406, according to transport network information, the telecommunications of adjusting subscriber equipment between service network unit and subscriber equipment connects.This method finishes in 408.
In an embodiment of first aspect, in the adjustment that the telecommunications of subscriber equipment connects, adjust the base station of radio net and have the soft handover that the telecommunications between the subscriber equipment with the dedicated radio link of base station is connected according to transport network information.
Referring now to Fig. 5,, the second method of optimizing the resource in the radio system is described.
This method starts from 500.In 502, be transmitted to the radio net of radio system with the relevant transport network information of traffic carrying capacity in the transmission network of radio system.Transmission network is connected the network element of radio net and the core network of radio net and radio system.
In 504,, adjust the base station of radio net and the soft handover that the telecommunications between the subscriber equipment connects according to transport network information.This method finishes in 506.
According to second method, one of network element of radio net can be served as the service network unit, is used for via this service network unit, and core network is delivered in the telecommunications connection of subscriber equipment.
Our explanation now is applicable to other embodiment of above-mentioned two kinds of methods.
In one embodiment, the service network unit is serving BS or service radio network controller.
In one embodiment, telecommunications connects the dedicated radio link that comprises between subscriber equipment and the service network element.
In one embodiment, telecommunications connects the dedicated radio link between the base station that comprises subscriber equipment and radio net, and the connection between base station and the service network element.
In one embodiment, subscriber equipment is adjusted with the anchor that the telecommunications of the network element of radio net is connected.In one embodiment, described anchor is limited.In another embodiment, do not allow any anchor.
In one embodiment, the soft handover standard is adjusted.In one embodiment, the boundary of triggering soft handover measurement report is adjusted.In one embodiment, the hysteresis limits of triggering soft handover measurement report is adjusted.In one embodiment, soft handover margins is adjusted.In one embodiment, soft handover hysteresis limits is adjusted.In another embodiment, the boundary of relative signal intensity is adjusted.In one embodiment, the hysteresis limits of relative signal intensity is adjusted.
In one embodiment, the number of soft handover legs is adjusted.In one embodiment, the number of SHO branch road is restricted to two SHO branch roads.
In one embodiment, the admissibility of soft handover and a certain service is adjusted.In one embodiment, soft handover is not allowed to and any non real-time (NRT) service use together, perhaps only allows to be used for some NRT service.In this embodiment, described adjustment is with the type of the service of use, and the priority of traffic category or connection is the basis.
In one embodiment, the utilization rate of the soft handover of each base station is adjusted.
In one embodiment, the utilization rate of the soft handover of each radio plot is adjusted.
In one embodiment, the bit rate of distributing for the carrying between the network element of radio net is adjusted.In one embodiment, be the less bit rate of some non real-times (NRT) service assignment.In another embodiment, the bit rate of distribution can be by multiplexed, that is, the distribution bit rate of several carryings is adjusted simultaneously.
Disclosed method can realize by the disclosed radio system in front, but also can use the radio system of other type.
Above-mentioned adjustment can be used to existing telecommunications and connect, and perhaps only is used for new telecommunications and connects.Described adjustment can be used to revise the controlled function of the connection among subscriber equipment and/or IP BTS or the RNC.
The telecommunications that described adjustment can be used between all or some base station of radio system connects.
When transport network load is very big, for example in the busy hour, especially need the adjustment of the restriction of described adjustment, particularly SHO and SHO load.When transport network load hour, less to the needs of adjusting, perhaps do not need to adjust.
When network is loaded, and the mobility of UE is when higher, possible temporary needs adjustment.In this case, the abnormal proportion height of SHO communication.Because SHO communication is classified as very urgent communication, therefore a high proportion of SHO communication has reduced usually by using the obtainable benefit of differential service (DiffServ).
Fig. 6 represents the example of receiving system to the traffic load of adjusting device report.Along with load increases, carry out the triggering that reduces the SHO load.Because the cause of these operations, load reduces.In this linguistic context, load can be, the direct tolerance (kbps) of for example traffic load, and perhaps QoS measures, such as transmit queue length or transmission delay.
Fig. 7 represents a kind of method of optimizing resource of utilizing, and reduces the approach of the SHO probability that connects.Threshold value TH1 and-TH1 representative be when the threshold value that newly is connected when being added in the active set, the threshold value when TH2 and-TH2 represent being connected in deleting active set.As shown in FIG., operation is to reduce threshold value.Hysteresis margins also is lowered (for example TH2-TH1).
Fig. 8 represents a simulation SHO load in the sub-district.Vertical axis is represented the SHO percent load, and in this example, it is and is connected and only has a radio branch road when each that the situation when promptly not having SHO is compared, by second and the extra load that causes of Three S's HO radio branch road.The variation of SHO load is bigger.In the time interval of couple of seconds, the SHO load may increase or reduce tens of percentages.Effectively do not limiting under the situation of SHO traffic carrying capacity, this quick variation can not be stabilized.For example, permission control can not be made a response equally soon.Change and depend on the SHO boundary of representing among Fig. 7.If TH1=TH2=0dB will not exist SHO or SHO load so.
Though above with reference to the accompanying drawings, with reference to an example the present invention has been described, obviously the present invention is not limited thereto, can revise the present invention according to several modes on the contrary in the scope of accessory claim.

Claims (32)

1, a kind of method that is used for optimizing the resource of radio system, described method comprises:
To send the radio net (402) of described radio system about the transport network information of the traffic carrying capacity in the transmission network of described radio system to, described transmission network makes described radio net and network element thereof be connected with the core network of described radio system;
The service network unit of described radio net is routed to described core network (404) with the telecommunications connection of subscriber equipment via described service network unit;
It is characterized in that,
According to described transport network information, the telecommunications of adjusting between described service network unit and the described subscriber equipment connects (406).
2, in accordance with the method for claim 1, it is characterized in that, in described set-up procedure,, adjust the base station of described radio net and the soft handover that the telecommunications between the described subscriber equipment connects according to described transport network information.
3, a kind of method that is used for optimizing the resource of radio system, described method comprises:
To send the radio net (502) of described radio system about the transport network information of the traffic carrying capacity in the transmission network of described radio system to, described transmission network makes described radio net and network element thereof be connected with the core network of described radio system;
It is characterized in that,
According to described transport network information, adjust the base station of described radio net and the soft handover (504) that the telecommunications between the described subscriber equipment connects.
4, in accordance with the method for claim 3, it is characterized in that one of them is the service network unit for the network element of described radio net, be used for the telecommunications connection of described subscriber equipment is routed to described core network via described service network unit.
According to claim 1 or 4 described methods, it is characterized in that 5, described service network unit is serving BS or service radio network controller.
According to claim 1 or 4 described methods, it is characterized in that 6, described telecommunications connects the dedicated radio link that comprises between described subscriber equipment and the described service network unit.
According to claim 1 or 4 described methods, it is characterized in that 7, described telecommunications connects the dedicated radio link between the base station that comprises described subscriber equipment and described radio net, and the connection between described base station and the described service network unit.
According to claim 1 or 4 described methods, it is characterized in that 8, in described set-up procedure, adjust being connected of network element of described subscriber equipment and described radio net, wherein this network element does not provide radio resource to described subscriber equipment.
9, according to claim 1,2 or 3 described methods, it is characterized in that, in described set-up procedure, adjust the standard of soft handover.
10, according to claim 1,2 or 3 described methods, it is characterized in that, in described set-up procedure, adjust the number of soft handover legs.
11, according to claim 1,2 or 3 described methods, it is characterized in that, in described set-up procedure, adjust the admissibility of soft handover and a certain service.
12, according to claim 1,2 or 3 described methods, it is characterized in that, in described set-up procedure, adjust the utilization rate of the soft handover of each base station.
13, according to claim 1,2 or 3 described methods, it is characterized in that, in described set-up procedure, adjust the utilization rate of the soft handover of each radio plot.
14, according to claim 1,2 or 3 described methods, it is characterized in that, in described set-up procedure, be adjusted into the bit rate that the carrying between the network element of described radio net distributes.
15, a kind of radio system comprises:
Core network (100);
The radio net (320) that is connected with described core network (100), be used for providing telecommunications to connect to subscriber equipment (170), described radio net comprises a plurality of network element (324,326,328), one of them described network element is configured to as service network unit (326), and described service network unit is routed to described core network (100) with the telecommunications connection of described subscriber equipment (170) via described service network unit (326);
Transmission network (322) is used to connect the network element of described radio net, and is used to connect described radio net (320) and described core network; And
Receiving system (301) is used for receiving the transport network information about the traffic carrying capacity of described transmission network (322);
It is characterized in that,
Described radio system also comprises the adjusting device (302) that is connected with described receiving system (301), is used for according to described transport network information, and the telecommunications of adjusting between described service network unit (326) and the described subscriber equipment (170) connects.
According to the described system of claim 15, it is characterized in that 16, described adjusting device (302) is adjusted the base station of described radio net (320) and the soft handover that the telecommunications between the described subscriber equipment (170) connects according to described transport network information.
17, a kind of radio system comprises:
Core network (100);
The radio net (320) that is connected with described core network (100) is used for providing telecommunications to connect to subscriber equipment (170), and described radio net comprises a plurality of network element (324,326,328);
Transmission network (322) is used to connect the network element of described radio net, and is used to connect described radio net (320) and described core network (100); And
Receiving system (301) is used for receiving the transport network information about the traffic carrying capacity of described transmission network (322);
It is characterized in that,
Described radio system also comprises the adjusting device (302) that is connected with described receiving system (301), be used for according to described transport network information, adjust the base station of described radio net (320) and the soft handover that the telecommunications between the described subscriber equipment (170) connects.
18, according to the described system of claim 17, it is characterized in that, one of them is configured to the network element of described radio net as service network unit (326), and described service network unit (326) is routed to described core network (100) with the telecommunications connection of described subscriber equipment (170) via described service network unit (326).
According to claim 15 or 18 described systems, it is characterized in that 19, described service network unit is serving BS or service radio network controller.
According to claim 15 or 18 described systems, it is characterized in that 20, described telecommunications connects the dedicated radio link that comprises between described subscriber equipment (170) and the described service network unit (326).
21, according to claim 15 or 18 described systems, it is characterized in that, described telecommunications connects the dedicated radio link between the base station (324,328) that comprises described subscriber equipment (170) and described radio net (320), and the connection between described base station (324,328) and the described service network unit (326).
22, according to claim 15 or 18 described systems, it is characterized in that, described adjusting device (302) is according to described transport network information, adjust being connected of network element of described subscriber equipment (170) and described radio net (320), wherein this network element does not provide radio resource to described subscriber equipment.
According to claim 15,16 or 17 described systems, it is characterized in that 23, described adjusting device (302) is adjusted the standard of soft handover.
According to claim 15,16 or 17 described systems, it is characterized in that 24, described adjusting device (302) is adjusted the number of soft handover legs.
According to claim 15,16 or 17 described systems, it is characterized in that 25, described adjusting device (302) is adjusted the admissibility of soft handover and a certain service.
According to claim 15,16 or 17 described systems, it is characterized in that 26, described adjusting device (302) is adjusted the utilization rate of the soft handover of each base station.
According to claim 15,16 or 17 described systems, it is characterized in that 27, described adjusting device (302) is adjusted the utilization rate of the soft handover of each radio plot.
According to claim 15,16 or 17 described systems, it is characterized in that 28, described adjusting device (302) is adjusted into the bit rate that carrying distributed between the network element of described radio net.
29, a kind of base station of radio system, described radio system comprises:
Core network,
The radio net that is connected with described core network, be used for providing telecommunications to connect to subscriber equipment, described radio net comprises a plurality of network element, one of them described network element is configured to as the service network unit, described service network unit is routed to described core network with the telecommunications connection of described subscriber equipment via described service network unit
Transmission network is used to connect the network element of described radio net, and is used to connect described radio net and described core network, and
Receiving system is used to receive the transport network information about the traffic carrying capacity of described transmission network,
Described base station is characterised in that,
Described base station comprises the adjusting device (302) that is connected with described receiving system, is used for according to described transport network information, and the telecommunications of adjusting between described service network unit and the described subscriber equipment connects.
30, a kind of base station of radio system, described radio system comprises:
Core network,
With the radio net that described core network is connected, be used for providing telecommunications to connect to subscriber equipment, described radio net comprises a plurality of network element,
Transmission network is used to connect the network element of described radio net, and is used to connect described radio net and described core network, and
Receiving system is used to receive the transport network information about the traffic carrying capacity of described transmission network,
Described base station is characterised in that,
Described base station also comprises the adjusting device (302) that is connected with described receiving system, is used for according to described transport network information, adjusts the soft handover that the telecommunications between described base station and the described subscriber equipment connects.
31, a kind of radio network controller of radio system, described radio system comprises:
Core network,
The radio net that is connected with described core network, be used for providing telecommunications to connect to subscriber equipment, described radio net comprises a plurality of network element, one of them described network element is configured to as the service network unit, described service network unit is routed to described core network with the telecommunications connection of described subscriber equipment via described service network unit
Transmission network is used to connect the network element of described radio net, and is used to connect described radio net and described core network, and
Receiving system is used to receive the transport network information about the traffic carrying capacity of described transmission network,
Described radio network controller is characterised in that,
Described radio network controller comprises the adjusting device (302) that is connected with described receiving system, is used for according to described transport network information, and the telecommunications of adjusting between described service network unit and the described subscriber equipment connects.
32, a kind of radio network controller of radio system, described radio system comprises:
Core network,
With the radio net that described core network is connected, be used for providing telecommunications to connect to subscriber equipment, described radio net comprises a plurality of network element,
Transmission network is used to connect the network element of described radio net, and is used to connect described radio net and described core network, and
Receiving system is used to receive the transport network information about the traffic carrying capacity of described transmission network,
Described radio network controller is characterised in that,
Described radio network controller also comprises the adjusting device (302) that is connected with described receiving system, is used for according to described transport network information, adjusts the soft handover that the telecommunications between base station and the described subscriber equipment connects.
CNA2007101287583A 2002-10-08 2002-10-08 Method for optimizing resources in radio system, and radio system Pending CN101083562A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103582060A (en) * 2012-07-31 2014-02-12 华为终端有限公司 Network switching method, network switching device and mobile terminal
CN112825497A (en) * 2019-11-21 2021-05-21 上海朗帛通信技术有限公司 Method and apparatus in a node used for wireless communication

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103582060A (en) * 2012-07-31 2014-02-12 华为终端有限公司 Network switching method, network switching device and mobile terminal
CN112825497A (en) * 2019-11-21 2021-05-21 上海朗帛通信技术有限公司 Method and apparatus in a node used for wireless communication

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