CN100428836C

CN100428836C - A method for transmitting packet data service to terminal

Info

Publication number: CN100428836C
Application number: CNB2004100690272A
Authority: CN
Inventors: 吴卫东
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2004-07-12
Filing date: 2004-07-12
Publication date: 2008-10-22
Anticipated expiration: 2024-07-12
Also published as: CN1722900A

Abstract

The present invention discloses a method for transmitting packet data services to a terminal, and the method comprises: A. an application server in a cellular network initiates a request of sending the packet data services to a terminal to a packet switched domain, and the request carries the network access identification of the terminal; B. the packet switched domain determines a corresponding network entity according to the network access identification carried by the request, and accesses the network entity to obtain the data area position registration information of the terminal stored by the network entity, so that the current position of the terminal is determined, and the packet switched domain initiates a request of sending the packet data services; C. after the terminal which receives the request establishes PPP connection with the packet switched domain, the packet switched domain establishes connection between the packet switched domain and the application server, and the application server sends the packet data services to the terminal. The method can enable an MS to realize that the packet data services are called is received and the packet data services are obtained without maintaining the PPP connection established between an MS100 and a PDSN 104 in the cellular network.

Description

A kind of method that sends Packet data service to terminal

Technical field

The present invention relates to the technology of transmitting data service in code division multiple access (CDMA) system, particularly a kind of method that in cdma system, sends Packet data service to terminal.

Background technology

CDMA is a kind of advanced person's a digital mobile cellular telecommunication technology, is one of the third generation (3G) Radio Transmission Technology (RTT) of accepting of International Telecommunication Association (ITU), since nineteen ninety issue standard first, has experienced two important stages of IS95, CDMA20001x.

Fig. 1 is a CDMA2000 1x network of network structure chart, as shown in the figure: CDMA2000 1x network comprises travelling carriage (MS) 100, base station transceiver (BTS) 101, base station controller (BSC) 102, Packet Control Function (PCF) 103, Packet data service service node (PDSN) 104, business authentication and mandate and accounting server (AAA) 105 and IS-41 core net 106.Wherein, IS-41 core net 106 also comprises mobile switching centre (MSC), Visited Location Registor (VLR) and attaching position register (HLR).MS100 inserts PCF103 by BTS101 and BSC102, and PCF103 sends to MS100 with the Packet data service that PDSN104 provides.Simultaneously, AAA105 carries out authentication to MS100 and the Packet data service that MS100 receives is chargeed.

At present, when MS100 will obtain Packet data service, MS100 need set up PPP(Point-to-Point Protocol) with PDSN104 and be connected, and is the MS100 dynamically allocate address in order to connect PDSN104 by CDMA2000 1x network, and MS could obtain Packet data service from PDSN104 then.Called in order to guarantee that MS100 can be carried out Packet data service by PDSN104 at any time in CDMA2000 1x network, then must safeguard that in CDMA2000 1x network the PPP that MS100 and PDSN104 have set up is connected.Like this, when PDSN104 when the data service of MS100 initiation packet is called, could determine the position of MS100 and Packet data service is sent to MS100.Certainly, in order to reduce the consumption of CDMA2000 1x network air interface resource, CDMA2000 1x network also can will receive that not the called MS100 of Packet data service is discharged into resting state, when having Packet data service to be called into MS100 by the time, again by CDMA2000 1x network activation MS 100 receiving block data business.

Though above-mentioned process can guarantee the MS in CDMA2000 1x network and can receive that Packet data service is called and get access to Packet data service, but also there is shortcoming in this process: shortcoming one: because MS must be connected just with the PDSN maintenance of PPP and can obtain Packet data service, so need then to safeguard that for whole C DMA2000 1x network a large amount of PPP connects, expended the resource of PCF and PDSN; Shortcoming two:,, then can cause the address resource shortage if use IPv4 as the IP address because CDMA2000 1x network will obtain the MS dynamic assignment IP address of Packet data service to each; Shortcoming three: MS will make a call again when the current affiliated data field of MS is changed, promptly idle the switching; When if MS moves to the data field of other PDSN administrations, the new PPP that then must be established to other PDSN connects, and these two kinds of switchings all can consume the channel resource of CDMA2000 1x network.R-P between shortcoming four: PCF and the PDSN upgrades needs signaling, and this can increase the burden of CDMA2000 1x network.

Obtain the shortcoming that exists the Packet data service process as can be seen from MS, the essence that produces these shortcomings is must safeguard that at CDMA2000 1x network MS100 is connected with the PPP that PDSN104 sets up, and could realize that the Packet data service of MS is called.Therefore, the PPP that how to make CDMA2000 1x network need not safeguard that MS100 and PDSN104 set up is connected, and just can make the MS realization receive that Packet data service is called and get access to Packet data service becomes the key that overcomes these shortcomings.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of method that sends Packet data service to terminal, this method can need not safeguard in cellular network that MS100 is connected with the PPP that PDSN104 sets up, and just can make MS realize receiving that Packet data service is called and getting access to Packet data service.

According to above-mentioned purpose, technical scheme of the present invention is achieved in that

A kind of method that sends Packet data service to terminal, the corresponding relation of network entity and network access Identifier is set in the business authentication of cellular network packet domain and mandate and accounting server, described network entity is stored this terminal data zone position register information, and this method comprises:

Application server in A, the cellular network initiates to send the request of Packet data service to terminal to packet domain, and the network access Identifier of this terminal is carried in this request;

B, packet domain are determined the network entity of the network access Identifier correspondence that this request is carried according to set corresponding relation, visit this network entity and obtain this terminal data zone position register information that this network entity is stored, determine this terminal current location, initiate to send the request of Packet data service to this terminal;

C, the terminal of receiving this request set up with packet domain between being connected of point-to-point protocol, packet domain set up with application server between be connected, application server sends Packet data service to this terminal.

Described network entity is location server or attaching position register or business authentication and mandate and accounting server.

When network entity was attaching position register, the network access Identifier that the described packet domain of step B is carried according to this request determined that the process of corresponding network entity is:

And the mutual address analyzing server of packet domain in the thin number MDN of user of network access Identifier and terminal and the corresponding relation between the international member identification code IMSI are set, thin number MDN of the user of this terminal and international member identification code IMSI are used for determining the attaching position register of terminal attaching;

B1, packet domain are determined the thin number MDN of user and the international member identification code IMSI of the terminal of the network access Identifier correspondence that this request is carried according to the corresponding relation that is provided with, according to the attaching position register of the thin number MDN of user and this terminal data zone position register information of the definite storage of international member identification code IMSI.

Described terminal data zone position register information comprises at least: access network sign and block functions control internet protocol address.

Described access network sign and block functions control internet protocol address are corresponding one by one;

Perhaps described access network sign and block functions control internet protocol address are the one-to-many correspondence.

Described block functions control internet protocol address is IPv4 address or IPv6 address.

The process of described network entity storage terminal data field position register information is:

When A1, terminal moved to another data area from current data area, the network control entity under it sent the data field location update message;

A2, this network control entity are determined the access network sign of data field, the current place of this terminal, identify to the block functions of terminal distribution free time control internet protocol address according to this access network, send the location update message that the access network sign of having carried this terminal and block functions are controlled the internet protocol address to the network entity of this terminal data zone position register information of storage;

A3, this network entity are updated to access network sign and the block functions control internet protocol address that location update message carries with the data field position register information of this terminal, send updating message and respond to this network control entity;

A4, this network control entity are transmitted to terminal with the response of this updating message.

When network entity was location server, described network control entity was base station controller or block functions control;

When network entity was attaching position register, described network control entity was mobile switching centre or Visited Location Registor.

Before step B, this method further comprises:

The packet domain judgement wants the terminal of receiving block data business whether to set up being connected of point-to-point protocol with packet domain, if, packet domain set up with application server between being connected of point-to-point protocol, application server sends Packet data service to this terminal; Otherwise, execution in step B.

From such scheme as can be seen, the present invention is stored in MS active data area position register information in the predefined network entity, when carrying out Packet data service when called to MS, packet domain equipment in the Cellular Networks stores the network entity of MS active data area positional information by visit, obtain the current data field positional information of MS, thereby determine the position of MS, PDSN in the packet domain sets up and is connected with the PPP of MS, realizes that the Packet data service that the packet domain equipment in the Cellular Networks is provided sends to MS by PDSN.Therefore, the present invention need not safeguard that in cellular network MS100 is connected with the PPP that PDSN104 sets up, and just can make MS realize receiving that Packet data service is called and getting access to Packet data service.

Description of drawings

Fig. 1 is a CDMA2000 1x network of network structure chart.

Fig. 2 is the composition schematic diagram of ANID.

Fig. 3 carries out the flow chart that the position is upgraded for MS of the present invention.

Fig. 4 realizes receiving the flow chart that Packet data service is called and get access to Packet data service for the present invention makes MS.

Fig. 5 is among the HLR when the data field position register information that MS is current stores it under the time, and MS of the present invention carries out the flow chart of position renewal.

Fig. 6 is for when among the HLR of data field registration location information stores under it that MS is current, and the present invention makes the MS realization receive the flow chart that Packet data service is called and get access to Packet data service.

Embodiment

In order to make the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is further elaborated.

In cellular network, what MS did not stop moves, in order to make MS become the state that to get in touch, need in cellular network, increase the network entity of record MS current location information, thereby determine the position that MS is current according to the MS current position information, HLR has just served as such network entity in cellular network.

Same, can in the Cellular Networks packet domain, also need to upgrade the entity of MS active data area position register information initiatively to data service request of MS initiation packet and transmission Packet data service in order to guarantee PDSN.The present invention is provided with one or more location server, and (LS LocationServer) is used for writing down the network entity of MS active data area registration location information in the cellular network.The network entity of this setting and PCF carry out alternately.The present invention returns that MS is provided with network access Identifier (NAI, Network Access Identifiers) in the cellular network, and this NAI is stored among the AAA, is used for the current data field position register information of instruct MS and is stored in which LS.

When MS moves to certain data area, carry out the data field location registers in packet domain, being about to the current data field position register information of MS registers among its affiliated LS, the current data field position register information of MS includes but not limited to access network sign (ANID, Access Network Identifiers) and PCF internet protocol address (PCF IP address).Wherein ANID identifies a unique data zone, is used for identifying the current affiliated data area of MS; PCF IP address be MS under current PCF or BSC according to MS the data area IP address allocated under current, be used for addressing is carried out in the data area and the current position of MS at the current place of MS.The corresponding one or more PCF IP address of ANID, and PCF IP address can only corresponding ANID, promptly can only corresponding data zone.

If a PCF administers a plurality of data areas, then PCF comprises the ANID of a plurality of data areas.

In order to reach requirement of the present invention, ANID and PCF IP address distribute unitedly in full cellular network.PCF IP address can use IPv4 address or IPv6 address according to the version difference of cellular network.In the present invention, the data area of MS and the division of communication zone are consistent, so ANID is original parameter, comprise system banner (SID), network identity (NID) and data field sign (PZID) three parts, and concrete form as shown in Figure 2.

When the division of the data field of MS and communication zone is inconsistent, can reset ANID.

Fig. 3 carries out the flow chart that the position, data field is upgraded for MS of the present invention, and its concrete steps are:

When step 300, MS moved to other data area from current data area, BSC under it or PCF sent the position, data field and upgrade (Location update) message;

When BSC under step 301, the MS or PCF receive this Location update message, determine the ANID of the current affiliated data field of MS and distribute idle PCF IPaddress according to this ANID to MS, the LS under MS sends the Location update message of the ANID and the PCF IP address that have carried MS;

Step 302, the LS that receives Location update message upgrade the data field position register information of store M S in advance, change this data field position register information into ANID and PCF IP address that Location update message is carried, the response that sends Location update message is to BSC under the MS or PCF;

Step 303, the BSC of response that receives Location update message or PCF are transmitted to MS with the response of this Location update message.

When MS after LS has preserved data field location registers register information, the present invention just can make MS realize receiving the process that Packet data service is called and get access to Packet data service.Fig. 4 realizes receiving the flow chart that Packet data service is called and get access to Packet data service for the present invention makes MS, the entity that comprises in the whole cellular network has: application server (AS), router (BR that Packet data service is provided, Broder Rout), AAA, LS, PDSN, BSC or PCF and MS, its concrete steps are:

Step 400, when AS when MS sends Packet data service, the BR under AS sends the Packet data service call request of the NAI that carries this MS;

Step 401, the BR that receives this request send data service to AAA and send request, and the NAI of MS is carried in this request;

Step 402, AAA send acknowledge message to BR after receiving this request;

Whether step 403, AAA monitoring MS is in state of activation, and promptly whether MS has set up PPP with PDSN and be connected, if not, and execution in step 404; If, execution in step 409;

The NAI that step 404, AAA carry according to this request determines the LS of store M S location registers message, and the LS that visit is determined obtains the PCF at the current place of MS that LS stores in advance and the PCFIP address of this MS;

Step 405, AAA send request to the Packet data service that the PCF at the current place of MS sends the PCF IP address that carries this MS;

Step 406, PCF receive back the returning to AAA of this request and receive this request responding;

Step 407, PCF determine the position that MS is current according to the PCF IP address of this MS, send the MS that is notified to that activates the PPP link;

Simultaneously, the present invention also can adopt the mode of vibration or ring to notify the user who uses MS or need not remind the user who uses MS;

Step 408, notified MS set up with PDSN between link;

Step 409, PDSN according to prior art set up with AS between link;

Step 410, AS send Packet data service to MS.

The present invention can also MS is current the data field positional information register among the HLR under it, also can register among the AAA.At this moment, the NAI that is provided with to MS among the present invention is stored among the AAA, and the corresponding relation of thin number (MDN) of the user who in the address analyzing server mutual (AR), stores NAI and MS and international mobile subscriber identity (IMSI) with it, AAA can parse the MDN and the IMSI of NAI correspondence by AR, thereby determines the HLR under the MS.

In the time of among the HLR under the data field positional information that MS is current registers to it, described MS carries out the flow chart that upgrades the position as shown in Figure 5:

When step 500, MS moved to other data area from current data area, MSC under it or VLR sent Location update message;

When MSC under step 501, the MS or VLR receive this Location update message, determine the ANID of the band of position of MS under current and distribute PCF IPaddress according to this ANID to MS, the HLR under MS sends location registers (REGNOT) message of the ANID and the PCF IP address that have carried MS;

Step 502, the HLR that receives REGNOT message upgrade the register information of store M S in advance, change this register information into ANID and PCF IP address that Location update message is carried, send Regnot message to MSC under the MS or VLR;

Step 503, the MSC of response that receives Regnot message or VLR are transmitted to MS with the response of this Locationupdate message.

In the time of among the HLR under the data field positional information that MS is current registers to it, the described MS of making realizes receiving the flow chart that Packet data service is called and get access to Packet data service, the entity that comprises in the whole cellular network has: AS, BR, AAA, address analyzing server (AR), HLR, PDSN, BSC or the PCF and the MS of Packet data service are provided, as shown in Figure 6:

Step 600, when AS when MS sends Packet data service, the BR under AS sends the Packet data service call request of the NAI that carries this MS;

Step 601, the BR that receives this request send data service to AAA and send request, and the NAI of MS is carried in this request;

Whether step 602, AAA monitoring MS are in state of activation, if not, and execution in step 604; If, execution in step 610;

Step 603, AAA by AR in advance stored relation NAI that this request is carried be converted to the user data of MS, promptly obtain MDN, the IMSI information of MS;

Step 604, AAA send acknowledge message to BR;

MDN, the IMSI information that step 605, AAA basis parse is determined the HLR of store M S location registers message, the PCF at the current place of MS that the HLR that visit is determined is stored in advance and the PCF IP address of this MS;

Step 606, AAA send request to the Packet data service that the PCF at the current place of MS sends the PCF IP address that carries this MS;

Step 607, PCF receive back the returning to AAA of this request and receive this request responding;

Step 608, PCF determine the position that MS is current according to the PCF IP address of this MS, send the MS that is notified to that activates the PPP link;

Simultaneously, the present invention also can adopt the mode of vibration or ring to notify the user who uses MS or not notify the user;

Step 609, notified MS set up with PDSN between link;

Step 610, PDSN set up with AS between link;

Step 611, AS send Packet data service to MS.

MS among the present invention need not keep constantly with the PPP of PDSN and be connected, and can realize that Packet data service is called; The present invention need not safeguard being connected of MS and PPP in a large number in Cellular Networks, thereby has reduced the consumption of PCF and PDSN, has reduced the demand of IP address; The present invention need not keep the R-P between PCF and the PDSN to upgrade the signaling of needs, alleviates the burden of Cellular Networks and saves resource; The present invention sets up the mechanism of data field location registers, helps carrying out of follow-up Packet data service.

The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being made within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims

1, a kind of method that sends Packet data service to terminal, it is characterized in that, the corresponding relation of network entity and network access Identifier is set in the business authentication of cellular network packet domain and mandate and accounting server, described network entity is stored this terminal data zone position register information, and this method comprises:

2, the method for claim 1 is characterized in that, described network entity is location server or attaching position register or business authentication and mandate and accounting server.

3, method as claimed in claim 2 is characterized in that, when network entity was attaching position register, the network access Identifier that the described packet domain of step B is carried according to this request determined that the process of corresponding network entity is:

As claim 1 or 3 described methods, it is characterized in that 4, described terminal data zone position register information comprises at least: access network sign and block functions control internet protocol address.

5, method as claimed in claim 4 is characterized in that, described access network sign and block functions control internet protocol address are corresponding one by one;

As claim 4 or 5 described methods, it is characterized in that 6, described block functions control internet protocol address is IPv4 address or IPv6 address.

7, method as claimed in claim 4 is characterized in that, the process of described network entity storage terminal data field position register information is:

8, method as claimed in claim 7 is characterized in that, when network entity was location server, described network control entity was base station controller or block functions control;

9, the method for claim 1 is characterized in that, before step B, this method further comprises: