CN103168495B

CN103168495B - Packet-switched domain data discharging method, base station and base station control device

Info

Publication number: CN103168495B
Application number: CN201180003292.9A
Authority: CN
Inventors: 杨宾和; 刘建军; 雍文远; 顾威; 刘雍青; 齐江
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2011-10-13
Filing date: 2011-10-13
Publication date: 2016-03-02
Anticipated expiration: 2031-10-13
Also published as: CN103168495A; WO2012163002A1

Abstract

The invention discloses a kind of PS data unloading method, base station and base station control device, wherein, described method comprises: base station is after the ascending idle port data receiving user equipment (UE) transmission, Radio interface protocols ground floor agreement and Layer2 protocol process are carried out to described ascending idle port data, obtains upstream packet switching domain PS data; Described up PS data are directly passed to external network by the transmission network between external network by base station.By setting up PS service user plane Radio interface protocols second layer example on base station, make to carry out the process of the PS service user plane Radio interface protocols second layer to PS data in base station, the a part of PS data service of unloading shunting thus, cheap transmission network is utilized to shunt a part of PS business datum, meeting the increased requirement of PS data service simultaneously, reducing PS data service to base station control device returning taking and the upgrade expanding cost of base station control device of link circuit resource.

Description

Packet-switched domain data discharging method, base station and base station control device

Technical field

The present invention relates to the communications field, particularly relate to a kind of packet-switched domain data discharging method, base station and base station control device.

Background technology

UMTS (UniversalMobileTelecomSystem, universal mobile telecommunications system) be adopt WCDMA (WidebandCodeDivisionMultipleAccess, Wideband Code Division Multiple Access (WCDMA)) 3-G (Generation Three mobile communication system) of air interface technologies, UMTS comprises RAN (RadioAccessNetwork, wireless access network), CN (CoreNetwork, core net) and UE (UserEquipment, subscriber equipment).Wherein, RAN is used for the relevant function of administrative institute's being and not being line, CN for manage voice calls all in UMTS system and data cube computation and with the exchange of external network and routing function.CN is logically divided into CS (CircuitSwitchedDomain, circuit commutative field) and PS (PacketSwitchedDomain, packet-switched domain), wherein, and CS primary responsibility voice service, PS primary responsibility mobile data services.

UTRAN is land radio access web, comprises one or several RNS (RNS).A RNS is made up of a radio network controller (RNC) and one or more base station (NodeB), and RNC and CN is connected by Iu mouth, NodeB with RNC is connected by Iub mouth, and NodeB and UE is by Uu port communications.RNC is used for distributing and control being attached thereto or the Radio Resource of relevant NodeB, and NodeB has been used for the conversion of the data flow between Iub mouth and Uu mouth, also participates in a part of RRM simultaneously.

In the 3 gpp standards, RAN is connected with PS core net by IuPS mouth.In PS business, there is sizable ratio to be Internet service, finally need GGSN by described Internet service routing to external network.The transmission path of PS data is: UE passes through Uu mouth by PS data upload to NodeB, PS data are passed to RNC by Iub mouth by NodeB, these PS data are passed to CN by IuPS mouth by RNC again, SGSN (the ServingGPRSSupportNode of these PS data successively in CN, Serving GPRS Support Node) and GGSN (GatewayGPRSSupportNode, Gateway GPRS Support Node) after, pass to external network from Gi (GPRStoInternet) interface of GGSN.

Because the MobileInternet business (such as Web application, file transfer, P2P etc.) of data service main body belongs to value traffic for cellular carrier, non-profit with the increased production, simultaneously core net dilatation and upgrade cost higher, therefore the present situation of UMTS system and the rapid growth of data service more and more inharmonious.

The unloading of low value Packet Service, by increasing Gi interface in RNC side, is accessed external network by prior art.

Inventor is realizing finding in process of the present invention, and at least there are the following problems for prior art:

The above-mentioned method increasing Gi interface unloading PS data in RNC side, although the dilatation cost of PS core net and IP wideband transmit can be reduced, but the Iub return link resource of not saving from NodeB to RNC and the upgrade expanding cost of RNC, and the ratio between investments that these dilatation costs account for operator is larger.

Summary of the invention

The object of the embodiment of the present invention is to provide a kind of PS data unloading method, base station and base station control device, to meet the increased requirement of PS data service simultaneously, reducing PS data service taking and the upgrade expanding cost of base station control device base station control device return link resource.

First, embodiments provide a kind of PS discharging method, base station, after the ascending idle port data receiving user equipment (UE) transmission, is carried out Radio interface protocols ground floor agreement and Layer2 protocol process to described ascending idle port data, is obtained upstream packet switching domain PS data;

Described up PS data are directly passed to external network by the transmission network between external network by base station, and wherein said transmission network is different from Radio Access Network, core net and described external network.

Secondly, embodiments provide a kind of PS discharging method, comprising:

When receiving the RAB RAB foundation request for user equipment (UE), according to business information and/or the user profile of described UE, judge whether the RAB that described UE is corresponding meets based on business and/or the distributing strategy based on user;

If, when then sending unloading foundation request to base station, be that described UE sets up packet-switched domain PS service user plane Radio interface protocols second layer example to make base station, thus make base station carry out Radio interface protocols ground floor agreement and Layer2 protocol process to described ascending idle port data after the ascending idle port data receiving described UE transmission, obtain up PS data, and described up PS data are directly passed to external network by the transmission network between external network, wherein said transmission network is different from Radio Access Network, core net and described external network.

Again, embodiments provide a kind of base station, described base station comprises:

Protocol process module, for after the ascending idle port data receiving user equipment (UE) transmission, carries out Radio interface protocols ground floor agreement and Layer2 protocol process to described ascending idle port data, obtains upstream packet switching domain PS data;

Sending module, for described up PS data are directly passed to external network by the transmission network between external network, wherein said transmission network is different from Radio Access Network, core net and described external network.

Finally, embodiments provide base station control device, comprising:

First judge module, for when receiving the RAB RAB foundation request for user equipment (UE), according to business information and/or the user profile of described UE, judge whether the RAB that described UE is corresponding meets based on business and/or the distributing strategy based on user;

Sending module, for when the judged result of described first judge module is for being, when sending unloading foundation request to base station, be that described UE sets up packet-switched domain PS service user plane Radio interface protocols second layer example to make base station, thus make base station carry out Radio interface protocols ground floor agreement and Layer2 protocol process to described ascending idle port data after the ascending idle port data receiving described UE transmission, obtain up PS data, and described up PS data are directly passed to external network by the transmission network between external network, wherein said transmission network and Radio Access Network, core net and described external network difference.

The PS data unloading method of the embodiment of the present invention, base station and base station control device, by setting up PS service user plane Radio interface protocols second layer example on base station, make to carry out the process of the PS service user plane Radio interface protocols second layer to PS data in base station, the a part of PS data service of unloading shunting thus, utilize RAN, transmission network (such as xDSL or PON etc.) cheap beyond CN shunts a part of PS business datum, therefore the normal operation of PS data service can be ensured, PS data service taking and the upgrade expanding demand of base station control device return link resource can be reduced again, meeting the increased requirement of PS data service simultaneously, reduce PS data service to base station control device returning taking and the upgrade expanding cost of base station control device of link circuit resource.

Accompanying drawing explanation

Fig. 1 is the schematic flow sheet of the first embodiment of embodiment of the present invention PS data unloading method;

Fig. 2 is the schematic flow sheet of the second embodiment of embodiment of the present invention PS data unloading method;

Fig. 3 is the schematic flow sheet of the 3rd embodiment of embodiment of the present invention PS data unloading method;

Protocol stack opposite joining relation schematic diagram between Fig. 4 base station and external network;

Fig. 5 is the protocol stack opposite joining relation schematic diagram on base station, base station control device and GGSN;

Fig. 6 is the schematic flow sheet of the release PS user face second layer example corresponding with Fig. 3;

Fig. 7 is the schematic flow sheet of a specific embodiment of embodiment of the present invention PS data unloading method;

Fig. 8 is the schematic flow sheet of the release PS user face second layer example corresponding with Fig. 7;

Fig. 9 is the structural representation of the first embodiment of the base station of the embodiment of the present invention;

Figure 10 is the structural representation of the second embodiment of the base station of the embodiment of the present invention;

Figure 11 is the structural representation of the first embodiment of the base station control device of the embodiment of the present invention;

Figure 12 is the structural representation of the second embodiment of the base station control device of the embodiment of the present invention;

Figure 13 is the structural representation of the 3rd embodiment of the base station control device of the embodiment of the present invention.

Embodiment

For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in further detail the embodiment of the present invention below in conjunction with the drawings and specific embodiments.

Embodiment one

Present embodiments provide a kind of PS data unloading method, as shown in Figure 1, comprising:

S101, base station, after the ascending idle port data receiving UE transmission, is carried out Radio interface protocols ground floor agreement and Layer2 protocol process to these ascending idle port data, is obtained up PS data.

Base station is integrated with to the situation (evolution base station eNB in such as Long Term Evolution LTE network framework) of base station control device function, base station inherently can process Radio interface protocols ground floor agreement and Layer2 protocol, and what obtain after Radio interface protocols Layer2 protocol process on base station is PS data.

S102, the up PS data that step S101 obtains by base station are directly passed to external network by the transmission network between external network.

External network can be such as exterior I nternet, the server etc. of Intranet or other companies, described transmission network between base station and external network is the transmission network of the cheapness beyond RAN (wireless access network), CN (core net), such as the network such as xDSL (digital subscriber line), PON (EPON).

The present embodiment is configured with on base station can directly and the interface of external network communication, and this interface can be Gi interface.When ascending idle port data are after PS service user plane Radio interface protocols ground floor agreement and Layer2 protocol process, what obtain is up PS data, the transmission of these up PS data can shunt out from core net by base station afterwards, utilize the such as Gi interface on base station to be directly passed to described external network by the transmission network between external network, can regard as and utilize the beyond RAN and CN the 3rd to throw the net up PS data are passed to external network.

For networks such as LTE, MME (MobilityManagementEntity in S1 return link between eNB and core net and core net, Mobility Management Entity)/SGW (ServingGateway, gateway) the upgrade expanding cost of equipment can occupy the larger proportion of operator's investment, and for UMTS, CDMA, or the network such as CDMA2000, RNC/BSC (BaseStationController in base station and RAN, base station controller) between Iub return link and the upgrade expanding cost of RNC/BSC equipment can occupy the larger proportion of operator's investment, therefore, if the utilization of PS transfer of data to S1 mouth/Iub mouth resource can be reduced, the growth that just can reduce PS data service is to the upgrade expanding demand of S1/Iub return link and MME/SGW/RNC/BSC equipment.

The embodiment of the present invention utilizes cheap transmission network (such as xDSL, PON etc.) to shunt PS business datum, the normal operation of PS data service can be ensured thus, the upgrade expanding demand of data service to S1/Iub return link and MME/SGW/RNC/BSC equipment can be reduced again, meet the increased requirement of PS data service simultaneously, reduce PS data service taking and the upgrade expanding cost of base station control device base station control device return link resource.

The networks such as UMTS, CDMA or CDMA2000 of being separated with base station control device in the network such as LTE of one with base station for base station and base station control device set respectively below, introduce the PS data unloading method of the embodiment of the present invention.

One, first, introduce the PS data unloading method for LTE network, in LTE network framework, base station and base station control to gather in one (namely eNB).

See Fig. 2, S201, eNB after the ascending idle port data receiving UE transmission, Radio interface protocols ground floor agreement and Layer2 protocol process are carried out to these ascending idle port data, obtains up PS data;

The up PS data that step S201 obtains by S202, eNB are directly passed to external network by the transmission network between external network.

ENB itself has the disposal ability of the PS service user plane Radio interface protocols second layer.ENB is when receiving the RAB for UE (RAB) the foundation request that core net sends, can according to the business information of this UE and/or user profile, judge whether the RAB that this UE is corresponding meets based on business and/or the distributing strategy based on user, in other words, judge whether the business corresponding to this RAB can be shunted.If the result judged is yes, then for this UE reserves the interface resource with external network communication.

Concrete, judge whether the RAB that UE is corresponding meets based on business and/or the distributing strategy based on user, comprise: according to the business information of UE, determine whether the type of service of the RAB that UE is corresponding belongs to the type of service scope that can shunt, if so, then judge that RAB that UE is corresponding meets the distributing strategy based on business; And/or, according to the user profile of UE, determine whether the user of UE belongs to the user scope that can shunt, if so, then judge that RAB that UE is corresponding meets the distributing strategy based on user.

Business information comprises following information one or a combination set of: TrafficClass class of service, the grade of service;

User profile comprises following information one or a combination set of: the IMEI (InternationalMobileEquipmentIdentity of UE, International Mobile Station Equipment Identification), the APN APN of IMSI (InternationalMobileSubscriberIdentificationNumber, IMSIN International mobile station identity number), UE access, arp address resolution protocol rank belonging to UE, UE place CellID cell ID.

Above-mentioned business information and user profile, owing to can judge whether to perform unloading, can be called unloading information, and in other words, unloading information can comprise any one or its combination of specifying information in above-mentioned miscellaneous service information and various user profile.Can be kept on eNB based on business and/or based on the distributing strategy of user, also can be positioned on other third party's memory devices that can communicate with eNB.Can see the example of table 1 based on business and/or the distributing strategy based on user:

Table 1

Unloading information	Configuration suggestion can be unloaded
		IMEI	USB dongle,data card,…
IMSI	Home subscriber
		Traffic Class	Interactive/Background
ARP	Gold/Silver/Bronze
		APN	APN for Internet
Cell ID	Exclude cells at edge of network coverage

Wherein, for IMEI, belong to the condition that USBdongle or data card datacard is considered as meeting unloading shunting; For IMSI, belong to local user Homesubscriber and be considered as satisfying condition; For TrafficClass, can be belong to mutual Interactive or background Background class business is considered as satisfying condition, or, be that Interactive class business is unloaded, and Background class business is not unloaded, specifically can set according to actual needs; For ARP rank, can be belong to Gold, Silver or Bronze all to satisfy condition, or be considered as satisfying condition to belonging to Gold, be considered as not satisfying condition to Silver or Bronze; For APN, the APN meeting access the Internet is considered as satisfying condition; For CellID, be considered as not satisfying condition to the community being positioned at network coverage edge.

Optionally, unloading information can be obtained in the following way:

The business information and/or the user profile that obtain described UE request is set up from described RAB;

Business information and/or the user profile of described UE is obtained from the request of packet data protocol PDP context activation;

Business information and/or the user profile of described UE is obtained from service request.

Optionally, for the concrete business of up PS data, eNB can also perform the control strategy of a network side again, thus realize QoS (QualityofService, service quality) object such as control or load balancing, that is: before S202, can also comprise:

Whether the up PS data that S202a1, eNB determining step S201 obtains meet base station unloading condition; If so, then eNB performs step S202.

Base station unloading condition can not belong to preset blacklist list for the object IP address of up PS data or belong to preset white list list etc., specifically formulates according to the control strategy of operator.Due to the process through the PS service user plane Radio interface protocols second layer, the object IP address of up PS data can be obtained.Base station unloading condition can be positioned on eNB, also can be positioned on other third party's memory devices that can communicate with eNB.Base station unloading condition can embody the flow-dividing control of operator based on the concrete business execution of up PS data.

When the judged result of S202a1 is no, the up PS data that S202a2:eNB utilizes return link to be obtained by step S201 can also be comprised and pass to external network by core net.Here return link refers to the S1 return link between eNB and MME/SGW.

Corresponding, can also S203 be comprised: when receiving the descending PS data that external network sends from transmission network, eNB carries out PS service user plane Radio interface protocols Layer2 protocol and ground floor protocol processes to these descending PS data; Descending PS data after process are sent to corresponding UE by S204:eNB.

Be sightless because core net is the IP address distributed of UE and port to transmission network, therefore eNB needs to be the IP address distributed of UE and port translation by core net in PS data is the discernible IP address of transmission network and port.

Thus, before S202, can also comprise: in the up PS data that step S201 obtains by eNB, core net is the IP address distributed of UE and port translation is IP address and the port of transmission network;

Then before S204, can also comprise: eNB to be core net by the transmission network IP address in the descending PS data after described process and port translation be IP address that UE distributes and port.

When core net detect UE exceed a certain scheduled time do not send data or core net receive the releasing request that UE sends time, core net can send RAB releasing request to eNB, and dispose procedure with reference to existing flow process, can repeat no more herein.

Two, introduce the PS data unloading method for networks such as UMTS, CDMA or CDMA2000 below, wherein base station is separated with base station control device.

See Fig. 3, S301, base station control device, when receiving the RAB foundation request for UE, according to business information and/or the user profile of UE, judges whether the RAB that UE is corresponding meets based on business and/or the distributing strategy based on user.

Judge whether RAB that UE is corresponding meets specifically can comprise based on business and/or based on the distributing strategy of user:

According to the business information of UE, determine whether the type of service of the RAB that this UE is corresponding belongs to the type of service scope that can shunt, if so, then judge that RAB that this UE is corresponding meets the distributing strategy based on business; And/or, according to the user profile of UE, determine whether the user of this UE belongs to the user scope that can shunt, if so, then judge that RAB that this UE is corresponding meets the distributing strategy based on user.

Business information can comprise following information one or a combination set of: class of service, the grade of service etc.; User profile can comprise following information one or a combination set of: the ARP rank belonging to APN, UE of IMEI, IMSI, UE access of UE, the CellID etc. at UE place.Business information and user profile, owing to can judge whether to perform unloading, therefore can be called unloading information.

Optionally, base station control device can obtain unloading information in the following way:

Can be positioned on base station control device based on business and/or based on the distributing strategy of user, also can be positioned on other third party's memory devices that can communicate with base station control device.

If the judged result of S301 is yes, then S302: base station control device sends unloading and sets up request to base station, enter S304; If not, then S303: for UE sets up PS service user plane Radio interface protocols second layer example on base station control device, the process that base station control device is set up PS service user plane Radio interface protocols second layer example see existing flow process, can repeat no more herein.

Base station receive base station control device be unloading that UE sends set up request time, S304: PS service user plane Radio interface protocols second layer example is set up for this UE in base station.

The base station of the present embodiment has PS service user plane Radio interface protocols second layer disposal ability, but PS service user plane Radio interface protocols second layer example can not all be set up for all users and business in base station.Execute about after based on business and/or the judgement based on the distributing strategy of user at base station control device according to the unloading information obtained, shunt if the business of UE can be unloaded on base station, then base station control device sends unloading and sets up request to base station, unloading is set up in request can carry the RAB information set up needed for PS service user plane Radio interface protocols second layer example, RB information, PDCP (PacketDataConvergenceProtocol, packet data convergence protocol) information, RLC (RadioLinkControl, wireless spread-spectrum technology) information and downstream transmission channel information etc., the QoS, assignment speed etc. of RAB mark, business datum can be comprised in RAB information, RB mark etc. in RB information, can be comprised.Afterwards, the information of carrying in request is set up in base station according to unloading, for this UE sets up PS service user plane Radio interface protocols second layer example, and returns unloading foundation response to base station control device.

After PS service user plane Radio interface protocols second layer example is set up on base station, protocol stack between base station and external network is see Fig. 4, can see, the protocol stack on base station comprises the agreement of the PS service user plane Radio interface protocols second layer: MAC, RLC and PDCP layer protocol.By the IP layer protocol in base station protocol stack, can find out, data encapsulation of eating dishes without rice or wine can be become IP packet by base station, or IP packet deblocking is dressed up data of eating dishes without rice or wine.

After S304, preferably can also comprise: when base station receive base station control device be above-mentioned UE send carry rlc layer encryption parameter and OLPC (OuterLoopPowerControl, open sea wharf) the unloading reconfiguration request of parameter time, base station completes according to this unloading reconfiguration request and to be encrypted the up PS data of this UE and power controls.

S305, base station, after the ascending idle port data receiving this UE transmission, is carried out Radio interface protocols ground floor agreement and Layer2 protocol process to these ascending idle port data, is obtained up PS data.What obtain through the process of the PS service user plane Radio interface protocols second layer is all PS data.

S306, up PS data are directly passed to external network by the transmission network between external network by base station.

Optionally, can also for the concrete business of up PS data, base station performs the flow-dividing control strategy of a network side again, thus realize the objects such as QoS control or load balancing, namely before S306, S306a1 can also be comprised: base station judges whether up PS data meet base station unloading condition.

Base station unloading condition can be positioned on base station, and also can be positioned at other can with on third party's memory device of base station communication.Base station unloading condition can not belong to preset blacklist list for the object IP address of up PS data, if the object IP address of up PS data is not included in described IP address field blacklist list, then allows to be forwarded directly to external network by base station; If the object IP address of up PS data is included in described IP address field blacklist list, then do not allow directly to divide flow forwarding by base station.

Certainly, base station unloading condition also can belong to preset white list list for the object IP address of up PS data, namely when the object IP address of up PS data is included in described white list list, allows described up PS data directly to be forwarded by base station.Base station unloading condition specifically can according to the flow-dividing control policy development of operator.

By setting up PS service user plane Radio interface protocols second layer example on base station, base station can process more PS service user plane Layer2 protocol, base station is on the basis of PS service user plane Layer2 protocol thus, the IP address of the data of eating dishes without rice or wine being arranged in IP layer can be identified, and then determine whether unloading shunting is carried out to described up PS data according to IP address.

If the judged result of S306a1 is yes, then base station performs step S306; Because not all up PS data can meet unloading condition, when the judged result of S306a1 is no, then S306s2 can be comprised: base station utilizes return link that up PS data are passed to external network by core net.Here return link refers to the Iub return link between base station and base station control device.

Because PS service user plane Radio interface protocols second layer example is based upon on base station by base station control device, therefore the protocol stack opposite joining relation between base station to base station control device is corresponding to be adjusted, and the base station after adjustment and the protocol stack opposite joining relation between base station control device are see Fig. 5.

Can find out, because up PS data can be processed into IP packet by base station, therefore, next by carrying out UDP (UserDatagramProtocol again, User Datagram Protoco (UDP)) and IPFP (procotol file protocol) process, just can be directly passed to base station control device; Afterwards, up PS data are encapsulated as GTPU bag by GTPU (encapsulated user data agreement) according to existing procedure and pass to core net and carry out subsequent treatment and transmission by base station control device.

Corresponding, also comprise: S307, when receiving the descending PS data that external network sends from transmission network, PS service user plane Radio interface protocols Layer2 protocol and ground floor protocol processes are carried out to these descending PS data in base station; S308, the descending PS data after process are sent to corresponding UE by base station.

Be sightless because core net is the IP address distributed of UE and port to transmission network, therefore base station needs to be the IP address distributed of UE and port translation by core net in PS data is the discernible IP address of transmission network and port.

Therefore can also comprise before S306: core net in the up PS data after process is the IP address distributed of UE and port translation by base station is IP address and the port of transmission network; Then also comprised before S308: base station is by the transmission network IP address in the descending PS data after process and port translation to be core net be IP address that UE distributes and port.

See Fig. 6, when core net detect UE exceed a certain scheduled time do not send data or core net receive the releasing request that UE sends time, S309, core net sends RAB releasing request to base station control device, and RAB releasing request at least carries RAB mark and identifies relevant radio bearer RB to this RAB and identifies.

S310, base station control device is after receiving the RAB releasing request carrying RAB mark, judge whether by base station to be that UE establishes PS service user plane Radio interface protocols second layer example, if so, then S311: base station control device informing base station is released to the PS service user plane Radio interface protocols second layer example for this RAB that this UE sets up; If not, then S312: base station control device release is from the PS service user plane Radio interface protocols second layer example for described RAB set up as this UE.

Wherein, base station control device informing base station be released to UE set up PS service user plane Radio interface protocols second layer example can comprise:

Base station control device sends unloading releasing request to base station; At least carry RAB mark in unloading releasing request and identify relevant radio bearer RB to this RAB and identify;

Base station release identifies to this RAB and RB identifies relevant PS service user plane Radio interface protocols second layer example, and return unloading release response to base station control device.

Below using UMTS network as object lesson, base station control device is wherein RNC, for the SGSN transmission PDP context activation request of UE to core net, is introduced (see Fig. 7) said method.

S401, UE initiate RRC (radio resource control) connection procedure when accessing;

S402, UE send PDP context activation request to SGSN; Carry IMEI, IMSI, ARP, APN, CellID, PDP type of UE in this PDP context activation request, be about to the information such as the QoS of the business datum sent.

S403, SGSN send RAB to RNC and set up request; This RAB carries UE in setting up and asking and is about to the parameters such as TrafficClass, the QoS of the business datum sent.

S404, RNC sets up business information and/or the user profile of acquisition request UE from PDP context activation request and/or RAB, and according to the business information of this UE and/or user profile, judge whether the RAB that UE is corresponding meets based on business and/or the distributing strategy based on user.As can be seen from based on business and/or the distributing strategy based on user, this strategy is the strategy based on business and/or user, and what wherein carry out business is more rough judgement, such as, to the judgement of class of service.

If meet based on business and/or the distributing strategy based on user, then S405: send offload to base station and set up request; Described Offload sets up in request can carry RAB information, RB information, PDCP information, RLC information, downstream transmission channel information etc., enters S406 afterwards;

If do not meet based on business and/or the distributing strategy based on user, then flow process conventionally carries out RL (RadioLink, wireless link) reconfigure process and RB process of establishing, for UE distributes Iub mouth resource, the up PS data that UE sends afterwards pass through core net externally Internet Transmission according to existing procedure;

S406, PS service user plane Radio interface protocols second layer example is set up according to the described offload request of setting up in base station;

S407, base station returns offload to RNC and sets up response;

S408, RNC and base station complete RL and reconfigure process, complete the foundation of RL;

RB is set up between S409, RNC and UE;

S410, RNC send offload reconfiguration request to base station, wherein carry rlc layer encryption parameter and OLPC parameter, with the encryption and the power control process that make base station complete the PS service user plane Radio interface protocols second layer;

S411, RNC return RAB to SGSN and set up response, and RAB has set up;

S412, SGSN return PDP context activation acceptance response to UE.

S413, UE send ascending idle port data to base station;

S414, Radio interface protocols ground floor agreement and Layer2 protocol process are carried out to these ascending idle port data in base station, obtain up PS data;

S415, base station judges whether up PS data meet base station unloading condition;

If so, then S416: IP address and the port of to be the IP address distributed of UE and port translation by mobile network in up PS data be transmission network;

S417, the up PS data after conversion are directly passed to external network by the transmission network between external network by base station;

S418, base station receives the descending PS data that external network sends from transmission network;

S419: PS service user plane Radio interface protocols Layer2 protocol and ground floor protocol processes are carried out to these descending PS data in base station;

S420, base station is by the transmission network IP address in the descending PS data after process and port translation to be mobile network be IP address that UE distributes and port;

S421, the descending PS data after conversion are sent to UE by base station;

If the judged result of S415 is no, then the up PS data after process are passed to RNC by the return link between radio network controller (RNC) by base station, by core net, described up PS data are passed to external network to make RNC;

Up PS data encapsulation can be become IPFP data and pass to RNC by the return link between RNC by base station, and IPFP data processing is encapsulated as GTPU data by RNC afterwards, by the GGSN of core net, described up PS data is passed to external network;

The descending PS data that external network sends pass to RNC by core net, to make RNC send to base station by the return link between base station, and return to UE further;

The descending PS data that external network sends are delivered to the GGSN of core net, this descending PS data encapsulation becomes GTPU data to send to RNC by GGSN, these GTPU data are processed into IPFP data and pass to base station by RNC, and base station returns to UE by eating dishes without rice or wine after processing these IPFP data.

When CN detect UE exceed a certain scheduled time do not send data or CN receive the releasing request that UE sends time, SGSN initiates the flow process of release interface-free resources, specifically see Fig. 8:

S501, SGSN send RAB releasing request to RNC; RAB mark etc. is carried in this RAB releasing request;

It is that above-mentioned UE establishes PS service user plane Radio interface protocols second layer example that S502, RNC judge whether by base station;

If so, then S503:RNC sends offload releasing request to base station; Carry RAB mark in this offload releasing request and identify relevant RB to this RAB and identify; If not, then directly step S506 is performed;

S504, base station release identifies to this RAB and RB identifies relevant PS service user plane Radio interface protocols second layer example;

S505, base station returns offload release response to RNC;

S506, RNC and base station complete RL and reconfigure process; Release identifies relevant RL to this RAB;

Discharge RB between S507, RNC and UE, this RB identifies corresponding with above-mentioned RB;

S508, RNC return RAB release response to SGSN.

The PS data unloading method of the present embodiment, by setting up PS service user plane Radio interface protocols second layer example on base station, make to carry out the process of the PS service user plane Radio interface protocols second layer to PS data in base station, the a part of PS data service of unloading shunting thus, utilize RAN, transmission network (such as xDSL or PON etc.) cheap beyond CN shunts a part of PS business datum, therefore the normal operation of PS data service can be ensured, PS data service taking and the upgrade expanding demand of base station control device return link resource can be reduced again, meeting the increased requirement of PS data service simultaneously, reduce PS data service to base station control device returning taking and the upgrade expanding cost of base station control device of link circuit resource.

In addition, by performing the screening for base station unloading condition on base station further, meticulousr flow-dividing control can be carried out according to the concrete business of each up PS data, realizing QoS and controlling or load balancing.For not by the up PS data of base station unloading, adopt return link that up PS data are delivered to external network from core net, ensure the reliability of PS data service.

Embodiment two

Present embodiments provide a kind of base station, as shown in Figure 9, comprise protocol process module 21, sending module 22.

Protocol process module 21, for after the ascending idle port data receiving UE transmission, carries out Radio interface protocols ground floor agreement and Layer2 protocol process to these ascending idle port data, obtains up PS data;

Sending module 22 is for being directly passed to external network by these up PS data by the transmission network between external network.

When above-mentioned base station is eNB, then base station itself has the disposal ability of the PS service user plane Radio interface protocols second layer.Base station is when receiving the foundation of the RAB for the UE request that core net sends, can according to the business information of this UE and/or user profile, judge whether the RAB that this UE is corresponding meets based on business and/or the distributing strategy based on user, in other words, judge whether the business corresponding to this RAB can be shunted.If the result judged is yes, then for this UE reserves the interface resource with external network communication.

Base station judges whether RAB that UE is corresponding meets and specifically can comprise based on business and/or based on the distributing strategy of user: according to the business information of UE, determine whether the type of service of the RAB that UE is corresponding belongs to the type of service scope that can shunt, if so, then judge that RAB that UE is corresponding meets the distributing strategy based on business; And/or, according to the user profile of UE, determine whether the user of UE belongs to the user scope that can shunt, if so, then judge that RAB that UE is corresponding meets the distributing strategy based on user.

Business information comprises following information one or a combination set of: TrafficClass, the grade of service; User profile comprises following information one or a combination set of: the ARP rank belonging to APN, UE of IMEI, IMSI, UE access of UE, the CellID at UE place.

Above-mentioned business information and user profile, owing to can judge whether to perform unloading, can be called unloading information, and in other words, unloading information can comprise any one or its combination of specifying information in above-mentioned miscellaneous service information and various user profile.Can be kept on base station based on business and/or based on the distributing strategy of user, also can be positioned at other can with on third party's memory device of base station communication.

For the base station in the networks such as UMTS, CDMA or CDMA2000, judge whether RAB that UE is corresponding meets to be performed by base station control device based on business and/or based on the distributing strategy of user, when base station control device judges that the RAB that UE is corresponding meets based on business and/or the distributing strategy based on user, send unloading to base station and set up request, unloading is set up in request can carry RAB information, RB information, PDCP information, RLC information and the downstream transmission channel information etc. set up needed for PS service user plane Radio interface protocols second layer example; The QoS, assignment speed etc. of RAB mark, business datum can be comprised in RAB information, RB mark etc. in RB information, can be comprised.

To this, described base station can also comprise (see Figure 10):

Set up module 23, for when receiving base station control device and being the unloading foundation request of this UE transmission, for this UE sets up PS service user plane Radio interface protocols second layer example.

Optionally, for the concrete business of up PS data, base station can also perform the flow-dividing control strategy of a network side again, thus realize the objects such as QoS control or load balancing, corresponding, described base station can also comprise:

Judge module 24, for judging whether up PS data meet base station unloading condition; If so, then call sending module 22 and perform the step up PS data being directly passed to external network by the transmission network between external network.

Base station unloading condition can be positioned on base station, and also can be positioned at other can with on third party's memory device of base station communication.Base station unloading condition can not belong to preset blacklist list for the object IP address of up PS data or belong to preset white list list etc.

Sending module 22 can also be used for: when the judged result of judge module 24 is no, utilizes return link that up PS data are passed to external network by core net.

Described base station can also comprise:

Configuration module 25, for receive base station control device be described UE send carry the unloading reconfiguration request of rlc layer encryption parameter and OLPC parameter time, complete according to described unloading reconfiguration request and the up PS data of this UE to be encrypted and power controls.

Corresponding, protocol process module 21 can also be used for: when receiving the descending PS data that external network sends from described transmission network, carry out PS service user plane Radio interface protocols Layer2 protocol and ground floor protocol processes to these descending PS data;

Sending module 22 also for: the descending PS data after process are sent to corresponding UE.

Sightless because core net is the IP address distributed of UE and port to transmission network, therefore base station need by core net in PS data be UE distribute IP address and port translation be the discernible IP address of transmission network and port, therefore, described base station can also comprise:

Modular converter 26, before transmitting up PS data at sending module 22, be the IP address distributed of described UE and port translation is IP address and the port of transmission network by core net in these up PS data; And, before the descending PS data after process are sent to UE, to be core net by the transmission network IP address in the descending PS data after this process and port translation be IP address that UE distributes and port.

When core net detect UE exceed a certain scheduled time do not send data or core net receive the releasing request that UE sends time, core net sends RAB releasing request to base station control device, at least carry RAB mark in RAB releasing request and identify relevant radio bearer RB to this RAB and identify, base station control device sends unloading releasing request to base station.

Described base station can also comprise:

Release module 27, for when receive base station control device send at least carry RAB mark unloading releasing request after, be released to UE set up the PS service user plane Radio interface protocols second layer example for this RAB.

The base station of the present embodiment, by setting up PS service user plane Radio interface protocols second layer example on base station, make base station can carry out the process of the PS service user plane Radio interface protocols second layer to PS data, the a part of PS data service of unloading shunting thus, utilize RAN, transmission network (such as xDSL or PON etc.) cheap beyond CN shunts a part of PS business datum, therefore the normal operation of PS data service can be ensured, PS data service taking and the upgrade expanding demand of base station control device return link resource can be reduced again, meeting the increased requirement of PS data service simultaneously, reduce PS data service to base station control device returning taking and the upgrade expanding cost of base station control device of link circuit resource.

Embodiment three

Present embodiments provide a kind of base station control device, as shown in figure 11, comprise the first judge module 11, sending module 12.

First judge module 11, for when receiving the RAB foundation request for UE, according to business information and/or the user profile of this UE, judges whether the RAB that this UE is corresponding meets based on business and/or the distributing strategy based on user;

See Figure 12, the first judge module 11 can comprise: the first judging unit 111, and/or, the second judging unit 112, wherein:

First judging unit 111, for the business information according to this UE, determines whether the type of service of the RAB that UE is corresponding belongs to the type of service scope that can shunt, and if so, then judges that RAB that UE is corresponding meets the distributing strategy based on business;

Second judging unit 112, for the user profile according to this UE, determines whether the user of UE belongs to the user scope that can shunt, and if so, then judges that RAB that UE is corresponding meets the distributing strategy based on user.

Above-mentioned business information and user profile, owing to can judge whether to perform unloading, can be called unloading information, and in other words, unloading information can comprise any one or its combination of specifying information in above-mentioned miscellaneous service information and various user profile.

Sending module 12, for when the judged result of the first judge module 11 is for being, when sending unloading foundation request to base station, be that this UE sets up PS service user plane Radio interface protocols second layer example to make base station, thus make base station carry out Radio interface protocols ground floor agreement and Layer2 protocol process to these ascending idle port data after the ascending idle port data receiving this UE transmission, obtain up PS data, and these up PS data are directly passed to external network by the transmission network between external network.

See Figure 13, described base station control device can also comprise: acquisition module 13, for performing following function one or a combination set of:

The business information and/or the user profile that obtain above-mentioned UE request is set up from RAB;

Business information and/or the user profile of above-mentioned UE is obtained from PDP context activation request/service request;

Business information and/or the user profile of this UE is obtained from service request.

Described base station control device can also comprise:

Second judge module 14, for after receiving the RAB releasing request carrying RAB mark, judges whether that by base station be the PS service user plane Radio interface protocols second layer example that UE establishes for this RAB;

Described sending module 12 also for, when the judged result of described second judge module 14 is for being, informing base station be released to UE set up the PS service user plane Radio interface protocols second layer example for this RAB.

The base station control device of the present embodiment, by setting up PS service user plane Radio interface protocols second layer example on base station, make to carry out the process of the PS service user plane Radio interface protocols second layer to PS data in base station, the a part of PS data service of unloading shunting thus, utilize RAN, transmission network (such as xDSL or PON etc.) cheap beyond CN shunts a part of PS business datum, therefore the normal operation of PS data service can be ensured, PS data service taking and the upgrade expanding demand of base station control device return link resource can be reduced again, meeting the increased requirement of PS data service simultaneously, reduce PS data service to base station control device returning taking and the upgrade expanding cost of base station control device of link circuit resource.

Because the Similar content of embodiment two, embodiment three and embodiment one is more, that therefore introduces is relatively simpler, and relevant part refers to embodiment one, repeats no more herein.

One of ordinary skill in the art will appreciate that, the all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program has come, described program can be stored in a computer-readable recording medium, as: ROM/RAM, magnetic disc, CD etc.

It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.

The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.

Claims

1. a packet-switched domain data discharging method, is characterized in that, described method comprises:

Base station, after the ascending idle port data receiving user equipment (UE) transmission, is carried out Radio interface protocols ground floor agreement and Layer2 protocol process to described ascending idle port data, is obtained upstream packet switching domain PS data;

2. the method for claim 1, it is characterized in that, before UE sends ascending idle port data, also comprise: receiving base station control device in base station is unloading that UE sends when setting up request, and base station is that described UE sets up PS service user plane Radio interface protocols second layer example.

3. method as claimed in claim 2, it is characterized in that, described unloading is set up in request and is carried RAB RAB information, radio bearer RB information, packet data convergence protocol PDCP information, wireless spread-spectrum technology RLC information and downstream transmission channel information;

Then comprise for described UE sets up PS service user plane Radio interface protocols second layer example:

The information of asking to carry is set up in base station according to described unloading, for described UE sets up PS service user plane Radio interface protocols second layer example.

4. the method for claim 1, is characterized in that, before described up PS data are directly passed to external network by transmission network by base station, also comprises:

Base station judges whether described up PS data meet base station unloading condition;

If so, then base station performs the described step up PS data being directly passed to external network by the transmission network between external network.

5. method as claimed in claim 4, it is characterized in that, described base station unloading condition is that the object IP address of up PS data does not belong to preset blacklist list or belongs to preset white list list.

6. method as claimed in claim 4, it is characterized in that, described method also comprises: when described up PS data do not meet base station unloading condition, and base station utilizes return link that described up PS data are passed to external network by core net.

7. the method for claim 1, it is characterized in that, described method also comprises: when receive base station control device be described UE send carry the unloading reconfiguration request of wireless spread-spectrum technology rlc layer encryption parameter and open sea wharf OLPC parameter time, described base station completes according to described unloading reconfiguration request and to be encrypted the up PS data of described UE and power controls.

8. the method as described in any one of claim 1-7, is characterized in that, described method also comprises:

When receiving the descending PS data that external network sends from described transmission network, PS service user plane Radio interface protocols Layer2 protocol and ground floor protocol processes are carried out to described descending PS data in described base station;

Described descending PS data after process are sent to corresponding UE by described base station.

9. method as claimed in claim 8, is characterized in that,

Before the described up PS data of transmission, also comprise: core net in described up PS data is the IP address distributed of described UE and port translation by described base station is IP address and the port of described transmission network;

Then before the descending PS data after described process are sent to UE, also comprise: to be core net by the transmission network IP address in the descending PS data after described process and port translation be in described base station IP address that UE distributes and port.

10. the method as described in any one of claim 1-7, is characterized in that, described method also comprises:

When receive base station control device send carry RAB mark unloading releasing request after, described base station be released to described UE set up the PS service user plane Radio interface protocols second layer example for described RAB.

11. 1 kinds of packet-switched domain data discharging methods, is characterized in that,

If, then send unloading to base station and set up request, be that described UE sets up packet-switched domain PS service user plane Radio interface protocols second layer example to make base station, thus make base station carry out Radio interface protocols ground floor agreement and Layer2 protocol process to described ascending idle port data after the ascending idle port data receiving described UE transmission, obtain up PS data, and described up PS data are directly passed to external network by the transmission network between external network, wherein said transmission network is different from Radio Access Network, core net and described external network.

12. methods as claimed in claim 11, is characterized in that, judge whether the RAB that described UE is corresponding meets based on business and/or the distributing strategy based on user, comprising:

According to the business information of described UE, determine whether the type of service of the RAB that described UE is corresponding belongs to the type of service scope that can shunt, if so, then judge that RAB that described UE is corresponding meets the distributing strategy based on business; And/or,

According to the user profile of described UE, determine whether the user of described UE belongs to the user scope that can shunt, if so, then judge that RAB that described UE is corresponding meets the distributing strategy based on user.

13. methods as claimed in claim 12, is characterized in that,

Described business information comprises following information one or a combination set of: class of service, the grade of service;

Described user profile comprises following information one or a combination set of: the cell ID at the APN of the International Mobile Station Equipment Identification of UE, IMSIN International mobile station identity number, UE access, the address resolution protocol rank belonging to UE, UE place.

14. methods as claimed in claim 13, it is characterized in that, described method also comprises the steps one or a combination set of:

15. methods as described in any one of claim 11-14, is characterized in that, after receiving the RAB releasing request carrying RAB mark, judge whether by base station to be that described UE establishes packet-switched domain PS service user plane Radio interface protocols second layer example;

If so, then informing base station is released to the PS service user plane Radio interface protocols second layer example for described RAB of described UE foundation.

16. 1 kinds of base stations, is characterized in that, comprising:

17. base stations as claimed in claim 16, it is characterized in that, described base station also comprises:

Set up module, for when receiving base station control device and being the unloading foundation request of UE transmission, for described UE sets up PS service user plane Radio interface protocols second layer example.

18. base stations as claimed in claim 16, it is characterized in that, described base station also comprises:

Judge module, for judging whether described up PS data meet base station unloading condition; If so, then call described sending module and perform the described step up PS data being directly passed to external network by the transmission network between external network.

19. base stations as claimed in claim 18, is characterized in that, described sending module also for: when the judged result of described judge module is no, utilize return link that described up PS data are passed to external network by core net.

20. base stations as claimed in claim 16, it is characterized in that, described base station also comprises:

Configuration module, for receive base station control device be described UE send carry the unloading reconfiguration request of wireless spread-spectrum technology rlc layer encryption parameter and open sea wharf OLPC parameter time, complete according to described unloading reconfiguration request and the up PS data of described UE to be encrypted and power controls.

21. base stations as described in any one of claim 16-20, it is characterized in that, described protocol process module also for: when receive from described transmission network external network send descending PS data time, PS service user plane Radio interface protocols Layer2 protocol and ground floor protocol processes are carried out to described descending PS data;

Described sending module also for: the described descending PS data after process are sent to corresponding UE.

22. base stations as claimed in claim 21, it is characterized in that, described base station also comprises:

Modular converter, for before the described up PS data of transmission, be the IP address distributed of described UE and port translation is IP address and the port of described transmission network by core net in described up PS data; And, before the descending PS data after described process are sent to UE, to be core net by the transmission network IP address in the descending PS data after described process and port translation be IP address that UE distributes and port.

23. base stations as described in any one of claim 16-20, it is characterized in that, described base station also comprises:

Release module, for when receive base station control device send carry RAB mark unloading releasing request after, be released to described UE set up the PS service user plane Radio interface protocols second layer example for described RAB.

24. 1 kinds of base station control devices, is characterized in that, comprising:

25. base station control devices as claimed in claim 24, it is characterized in that, described first judge module comprises: the first judging unit, and/or, the second judging unit, wherein,

Described first judging unit, for the business information according to described UE, determines whether the type of service of the RAB that described UE is corresponding belongs to the type of service scope that can shunt, and if so, then judges that RAB that described UE is corresponding meets the distributing strategy based on business;

Described second judging unit, for the user profile according to described UE, determines whether the user of described UE belongs to the user scope that can shunt, and if so, then judges that RAB that described UE is corresponding meets the distributing strategy based on user.

26. base station control devices as claimed in claim 25, it is characterized in that, described base station control device also comprises: acquisition module, for performing following function one or a combination set of:

27. base station control devices as described in any one of claim 24-26, it is characterized in that, described base station control device also comprises:

Second judge module, for after receiving the RAB releasing request carrying RAB mark, judges whether that by base station be the packet-switched domain PS service user plane Radio interface protocols second layer example that described UE establishes for described RAB;

Described sending module also for, when the judged result of described second judge module is for being, informing base station be released to described UE set up the PS service user plane Radio interface protocols second layer example for described RAB.