CN105519187A - Device, method and system for obtaining system information - Google Patents

Abstract

Embodiments of the invention provides a device, method and system for obtaining system information, and relate to the technical field of communication. The device comprises a receiving machine for receiving an RIM request message, a processor for mapping an eNodeB mark in the RIM request message into an RNC mark, a storer for saving a mapping relationship between the eNodeB mark and the RNC mark, and an emitting machine for requesting system information of a target cell to a BSC or RNC according to the RNC mark; and the receiving machine is further used to receive an RIM response message carrying the system information, the processing is further used to replace the RNC mark in the RIM response message with the corresponding eNodeB mark according to the mapping relationship, and the emitting machine is further used to send the RIM response message containing the eNodeB mark to the eNodeB. Under the condition that a present network SGSn is not upgraded, R9RIM process is achieved, and a reliable guarantee is provided for rapid deployment of a CSFB business.

Description

Device, method and system for acquiring system information

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an apparatus, a method, and a system for acquiring system information.

Background

Currently, with the evolution of LTE (Long-term evolution)/EPS (evolved packet system) networks, how to rapidly deploy and evolve voice services in LTE networks becomes a major concern for operators. The CSFB (circuit switched fallback) is a solution for implementing a voice service of a UE (user equipment) under LTE network coverage by using a reused 2G/3G network, and when the UE initiates a calling or called service under LTE network coverage, the LTE/EPS network triggers the UE to fall back to the 2G/3G network to execute the voice service.

In order to improve the voice service experience and reduce the fall-back delay of the UE from the LTE network to the 2G/3G network, the 3GPP (3 rd generation partnership project) R9 protocol proposes a scheme for fast deployment of CSFB service: an eNodeB (evolved node base, eNodeB) acquires system information of a target cell in advance in an LTE network through an RIM (radio access point information management) process, and sends the system information to a UE, so that the UE does not need to acquire the system information again after falling back to a 2G/3G network, thereby increasing the speed of accessing the 2G/3G network and the speed of accessing a voice service.

The R9RIM scheme is as follows: the eNodeB sends a request message to an MME (mobility management entity) for acquiring system information of a target 2G/3G network; after receiving the request message, the MME sends the request message to a target SGSN (serving GPRS support node); the target SGSN sends a request message to a corresponding BSC (base station controller)/RNC (radio network controller) after receiving the request message; and after receiving the system information, the BSC/RNC sends the system information to the SGSN through a response message, the SGSN sends the system information to a corresponding MME, and the MME sends the system information to the eNodeB.

In the above R9RIM process, the SGSN in the current network needs to be upgraded to implement the fast deployment of the CSFB service.

Disclosure of Invention

The invention provides equipment, a method and a system for acquiring system information, which are used for realizing an R9RIM flow under the condition of not upgrading the current network SGSN. The technical scheme is as follows:

in a first aspect, an apparatus for acquiring system information is provided, where the apparatus includes:

a receiver for receiving a wireless access point information management (RIM) request message;

a processor, configured to map an eNodeB identifier in the RIM request message to a radio network controller RNC identifier, where the RNC identifier is an RNC identifier that does not exist in the current network;

the memory is used for storing the mapping relation between the eNodeB identification and the RNC identification;

a transmitter, configured to request system information of a target cell from a base station controller BSC or a radio network controller RNC according to the RNC identifier;

the receiver is also used for receiving a RIM response message carrying the system information;

the processor is further configured to replace the RNC identifier in the RIM response message with the corresponding eNodeB identifier according to the mapping relationship;

the transmitter is further configured to send a RIM response message containing the eNodeB identification to the corresponding eNodeB.

With reference to the first aspect, in a first implementation manner of the first aspect, the processor is configured to:

acquiring the existing RNC identification range in the existing network, and mapping the eNodeB identification in the RIM request message to any RNC identification outside the RNC identification range; or,

and selecting an RNC identifier within a preset RNC identifier range, mapping the eNodeB identifier in the RIM request message to the selected RNC identifier, wherein the preset RNC identifier range is any RNC identifier range outside the existing RNC identifier range of the current network.

With reference to the first aspect, in a second implementation manner of the first aspect, the processor is configured to:

mapping an eNodeB identifier in the RIM request message into an RNC identifier, wherein the RNC identifier comprises a country code MCC, a mobile network code MNC, a location area code LAC, a routing area code RAC and an RNCID;

wherein the RNC identification at least one of the following conditions is satisfied:

the MCC is the MCC which does not exist in the current network;

the MNC is not existed in the current network;

the LAC is the LAC which does not exist in the current network;

the RAC is the RAC which does not exist in the current network;

the RNCID is the RNCID which does not exist in the current network.

With reference to the first aspect, in a third embodiment of the first aspect,

the receiver is used for receiving an RIM request message sent by an eNodeB;

the transmitter is used for sending RIM request information to a serving general packet radio service support point SGSN according to the RNC identification, and the SGSN requests system information of a target cell from a BSC or an RNC;

the receiver is configured to receive an RIM response message carrying the system information sent by the SGSN.

With reference to the first aspect, in a fourth embodiment of the first aspect,

the receiver is used for receiving a RIM request message sent by a Mobile Management Entity (MME);

the transmitter is used for requesting system information of a target cell from the BSC or the RNC according to the RNC identification;

the receiver is used for receiving an RIM response message which is sent by the BSC or the RNC and carries the system information;

and the transmitter is used for sending an RIM response message containing the eNodeB identifier to the MME, and forwarding the RIM response message to the corresponding eNodeB by the MME.

In a second aspect, a method for acquiring system information is provided, the method comprising:

receiving a wireless access point information management (RIM) request message;

mapping an eNodeB identifier in the request message to a Radio Network Controller (RNC) identifier, wherein the RNC identifier is an RNC identifier which does not exist in the current network, and storing the mapping relation between the eNodeB identifier and the RNC identifier;

requesting system information of a target cell from a base station controller BSC or a radio network controller RNC according to the RNC identification, and receiving an RIM response message carrying the system information;

and replacing the RNC identifier in the RIM response message with the corresponding eNodeB identifier according to the mapping relation, and sending the RIM response message containing the eNodeB identifier to the corresponding eNodeB.

With reference to the second aspect, in a first implementation manner of the second aspect, mapping an eNodeB identifier in the request message to a radio network controller, RNC, includes:

acquiring the existing RNC identification range in the existing network, and mapping the eNodeB identification in the RIM request message to any RNC identification outside the RNC identification range; or,

and selecting an RNC identifier within a preset RNC identifier range, mapping the eNodeB identifier in the RIM request message to the selected RNC identifier, wherein the preset RNC identifier range is any RNC identifier range outside the existing RNC identifier range of the current network.

With reference to the second aspect, in a second implementation manner of the second aspect, mapping the eNodeB identifier in the request message to a radio network controller, RNC, includes:

mapping an eNodeB identifier in the RIM request message into an RNC identifier, wherein the RNC identifier comprises a country code MCC, a mobile network code MNC, a location area code LAC, a routing area code RAC and an RNCID;

wherein the RNC identification at least one of the following conditions is satisfied:

the MCC is the MCC which does not exist in the current network;

the MNC is not existed in the current network;

the LAC is the LAC which does not exist in the current network;

the RAC is the RAC which does not exist in the current network;

the RNCID is the RNCID which does not exist in the current network.

With reference to the second aspect, in a third implementation manner of the second aspect, the receiving a wireless access point information management RIM request message includes:

receiving an RIM request message sent by an eNodeB;

correspondingly, requesting system information of a target cell from a base station controller BSC or a radio network controller RNC according to the RNC identification, and receiving a RIM response message carrying the system information, wherein the RIM response message comprises:

and sending an RIM request message to a serving general wireless packet service support point (SGSN) according to the RNC identification, requesting system information of a target cell from the SGSN to a BSC or an RNC, and receiving an RIM response message carrying the system information and sent by the SGSN.

With reference to the second aspect, in a fourth implementation manner of the second aspect, the receiving a wireless access point information management RIM request message includes:

receiving a RIM request message sent by a mobile management entity MME;

correspondingly, requesting system information of a target cell from a base station controller BSC or a radio network controller RNC according to the RNC identification, and receiving a RIM response message carrying the system information, wherein the RIM response message comprises:

requesting system information of a target cell from a BSC or an RNC according to the RNC identification, and receiving an RIM response message which is sent by the BSC or the RNC and carries the system information;

and sending a RIM response message containing the eNodeB identifier to the corresponding eNodeB, including:

and sending an RIM response message containing the eNodeB identifier to the MME, and forwarding the RIM response message to the corresponding eNodeB by the MME.

In a third aspect, a system for acquiring system information is provided, including: the apparatus for acquiring system information as described above.

The technical scheme provided by the embodiment of the invention has the beneficial effects that:

by receiving the RIM request message, mapping the eNodeB identifier into an RNC identifier which does not exist in the current network, and storing the mapping relation between the eNodeB identifier and the RNC identifier; the system information of a target cell is requested from a BSC or an RNC according to the RNC identification, after the RIM response message carrying the system information is received, the RNC identification in the RIM response message is replaced by the corresponding eNodeB identification according to the mapping relation, and the RIM response message containing the eNodeB identification is sent to the corresponding eNodeB, so that the eNodeB obtains the system information of the target cell, and because the eNodeB identification is mapped to the RNC identification, the R9RIM process can be realized without upgrading SGSN in the current network, thereby providing reliable guarantee for realizing the rapid deployment of CSFB service, reducing the investment of operators and ensuring the quality of voice service.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a diagram of a device configuration for acquiring system information according to embodiment 1 of the present invention;

fig. 2 is a flowchart of a method for acquiring system information according to embodiment 2 of the present invention;

fig. 3 is a flowchart of a method for acquiring system information according to embodiment 3 of the present invention;

fig. 4 is a flowchart of a method for acquiring system information according to embodiment 4 of the present invention;

fig. 5 is a block diagram of an apparatus for acquiring system information according to embodiment 5 of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Example 1

Referring to fig. 1, the present embodiment provides an apparatus for acquiring system information, including:

a receiver 101, configured to receive a wireless access point information management (RIM) request message;

a processor 102, configured to map an eNodeB identifier in the RIM request message to an RNC identifier, where the RNC identifier is an RNC identifier that does not exist in the current network;

a memory 103, configured to store a mapping relationship between the eNodeB identifier and the RNC identifier;

a transmitter 104, configured to request system information of a target cell from a base station controller BSC or a radio network controller RNC according to the RNC identifier;

the receiver 101 is further configured to receive a RIM response message carrying the system information;

the processor 102 is further configured to replace the RNC identifier in the RIM response message with a corresponding eNodeB identifier according to the mapping relationship;

the transmitter 104 is further configured to transmit a RIM response message containing the eNodeB identification to the corresponding eNodeB.

In this embodiment, the existing network refers to an existing 2G/3G network. The target cell is a cell in which the UE is located after falling back to the 2G/3G network from the LTE network, and the target cell provides voice service for the UE so as to complete the R9CSFB process. The system information refers to SIB (system information block), which is generally broadcast and transmitted by the BSC or RNC and used for the UE to access the wireless network.

In combination with the above device, in a first implementation, the processor 102 is configured to:

acquiring the existing RNC identification range in the current network, and mapping the eNodeB identification in the RIM request message to any RNC identification outside the RNC identification range; or,

and selecting an RNC identifier within a preset RNC identifier range, mapping the eNodeB identifier in the RIM request message to the selected RNC identifier, wherein the preset RNC identifier range is any RNC identifier range outside the existing RNC identifier range of the current network.

In combination with the above device, in a second embodiment, the processor 102 is configured to:

mapping the eNodeB identifier in the RIM request message to an RNC identifier, where the RNC identifier includes MCC (mobile country code), MNC (mobile network code), LAC (location area code), RAC (routing area code), and RNC id (IDentity); the RNC identity satisfies at least one of the following conditions:

the MCC is the MCC which does not exist in the current network;

the MNC is not existed in the current network;

the LAC is the LAC which does not exist in the current network;

the RAC is the RAC which does not exist in the current network;

the RNCID is the RNCID which does not exist in the current network.

Wherein, in combination with the above apparatus, in a third embodiment,

the receiver 101 is configured to receive a RIM request message sent by an eNodeB;

the transmitter 104 is configured to send an RIM request message to a serving gprs support point SGSN according to the RNC identifier, where the SGSN requests system information of a target cell from a BSC or an RNC;

the receiver 101 is configured to receive an RIM response message carrying the system information sent by the SGSN.

In combination with the above apparatus, in a fourth embodiment,

the receiver 101 is configured to receive a RIM request message sent by a mobility management entity MME;

the transmitter 104 is configured to request system information of the target cell from the BSC or RNC according to the RNC identifier;

the receiver 101 is configured to receive an RIM response message carrying the system information sent by the BSC or RNC;

the transmitter 104 is configured to send a RIM response message containing the eNodeB identifier to the MME, which forwards the message to the corresponding eNodeB.

In the apparatus provided in this embodiment, by receiving the RIM request message, the eNodeB identifier in the RIM request message is mapped to an RNC identifier that does not exist in an existing network, and a mapping relationship between the eNodeB identifier and the RNC identifier is stored; the system information of a target cell is requested from a BSC or an RNC according to the RNC identification, after the RIM response message carrying the system information is received, the RNC identification in the RIM response message is replaced by the corresponding eNodeB identification according to the mapping relation, and the RIM response message containing the eNodeB identification is sent to the corresponding eNodeB, so that the eNodeB obtains the system information of the target cell, and because the eNodeB identification is mapped to the RNC identification, the R9RIM process can be realized without upgrading SGSN in the current network, thereby providing reliable guarantee for realizing the rapid deployment of CSFB service, reducing the investment of operators and ensuring the quality of voice service.

Example 2

Referring to fig. 2, the present embodiment provides a method for acquiring system information, where the method includes:

201: receiving a wireless access point information management (RIM) request message;

202: mapping the eNodeB identifier in the request message to a Radio Network Controller (RNC) identifier which is an RNC identifier not existing in the current network, and storing the mapping relation between the eNodeB identifier and the RNC identifier;

203: requesting system information of a target cell from a base station controller BSC or a radio network controller RNC according to the RNC identification, and receiving a RIM response message carrying the system information;

204: and replacing the RNC identifier in the RIM response message with the corresponding eNodeB identifier according to the mapping relation, and sending the RIM response message containing the eNodeB identifier to the corresponding eNodeB.

In this embodiment, the existing network refers to an existing 2G/3G network. The target cell is a cell in which the UE is located after falling back to the 2G/3G network from the LTE network, and the target cell provides voice service for the UE so as to complete the R9CSFB process. The system information refers to SIB, which is usually broadcast by BSC or RNC and used for UE to access the radio network.

With reference to the foregoing method, in a first embodiment, mapping an eNodeB identifier in the request message to an RNC identifier includes:

acquiring the existing RNC identification range in the current network, and mapping the eNodeB identification in the RIM request message to any RNC identification outside the RNC identification range; or,

and selecting an RNC identifier within a preset RNC identifier range, mapping the eNodeB identifier in the RIM request message to the selected RNC identifier, wherein the preset RNC identifier range is any RNC identifier range outside the existing RNC identifier range of the current network.

With reference to the foregoing method, in a second implementation manner, mapping an eNodeB identifier in the request message to an RNC identifier includes:

mapping the eNodeB identifier in the RIM request message into an RNC identifier, wherein the RNC identifier comprises a country code MCC, a mobile network code MNC, a location area code LAC, a routing area code RAC and an RNCID;

wherein the RNC mark at least meets the following condition:

the MCC is the MCC which does not exist in the current network;

the MNC is not existed in the current network;

the LAC is the LAC which does not exist in the current network;

the RAC is the RAC which does not exist in the current network;

the RNCID is the RNCID which does not exist in the current network.

With reference to the foregoing method, in a third embodiment, the receiving a wireless access point information management RIM request message includes:

receiving an RIM request message sent by an eNodeB;

correspondingly, requesting system information of a target cell from a base station controller BSC or a radio network controller RNC according to the RNC identification, and receiving a RIM response message carrying the system information, wherein the RIM response message comprises:

sending RIM request information to a service general wireless packet service supporting point SGSN according to the RNC mark, requesting system information of a target cell from a BSC or an RNC by the SGSN, and receiving RIM response information which is sent by the SGSN and carries the system information.

With reference to the foregoing method, in a fourth embodiment, the receiving a wireless access point information management RIM request message includes:

receiving a RIM request message sent by a mobile management entity MME;

correspondingly, requesting system information of a target cell from a base station controller BSC or a radio network controller RNC according to the RNC identification, and receiving a RIM response message carrying the system information, wherein the RIM response message comprises:

requesting system information of a target cell from a BSC or an RNC according to the RNC identification, and receiving an RIM response message which is sent by the BSC or the RNC and carries the system information;

and sending a RIM response message containing the eNodeB identifier to the corresponding eNodeB, including:

and sending an RIM response message containing the eNodeB identifier to the MME, and forwarding the RIM response message to the corresponding eNodeB by the MME.

In the method provided by this embodiment, by receiving the RIM request message, the eNodeB identifier therein is mapped to an RNC identifier that does not exist in the current network, and the mapping relationship between the eNodeB identifier and the RNC identifier is stored; the method comprises the steps of requesting system information of a target cell from a BSC or an RNC according to an RNC mark, receiving an RIM response message carrying the system information, replacing the RNC mark in the RIM response message with a corresponding eNodeB mark according to the mapping relation, and sending the RIM response message containing the eNodeB mark to the corresponding eNodeB, so that the eNodeB obtains the system information of the target cell, and because the eNodeB mark is mapped to the RNC mark, the R9RIM process can be realized without upgrading SGSN in the current network, thereby providing reliable guarantee for realizing the rapid deployment of CSFB service, reducing the investment of operators, and ensuring the quality of voice service.

Example 3

Referring to fig. 3, this embodiment provides a method for acquiring system information, where an MME adapts an R7RIM flow to complete an R9RIM without upgrading an existing network SGSN, and helps complete rapid deployment of an R9CSFB service, and the method includes:

301: the eNodeB sends a DirectInformationTransfer message to the MME to request to acquire the system information of the target cell;

in this embodiment, based on the R9RIM procedure, the target cell refers to a cell in which the UE is located after falling back from the LTE network to the 2G/3G network, and the eNodeB acquires system information of the target cell for the UE to complete the R9CSFB procedure. The system information refers to SIBs.

Wherein, the source address in the message is eNodeBID, and the destination address is cell ID of 2G network or RNCID of 3G network.

302: MME receives a direct information transfer message sent by eNodeB, maps eNodeBID in the message to RNCID which is not existed in the current network, and stores the mapping relation between eNodeBID and RNCID;

wherein, the mapped RNCID replaces eNodeBID as the source address in the DirectInformationTransfer message.

In this embodiment, the RNC identifier includes a country code MCC, a mobile network code MNC, a location area code LAC, a routing area code RAC, and an RNC id, and may be represented as follows:

MCC+MNC+LAC+RAC+RNCID；

the RNC identity having the above expression satisfies at least one of the following conditions:

the MCC is the MCC which does not exist in the current network;

the MNC is not existed in the current network;

the LAC is the LAC which does not exist in the current network;

the RAC is the RAC which does not exist in the current network;

the RNCID is the RNCID which does not exist in the current network.

For example, a LAC range may be preset, where the LAC range is a range outside the LAC of the current network, and when mapping from eNodeBID to rnc is performed, one LAC may be selected from the preset LAC range to construct rnc, and at this time, other codes in the rnc may all be codes of the current network.

In this embodiment, the mapped rnc id is an rnc id that does not exist in the current network, so that it is possible to avoid the erroneous transmission of the RIM message due to the repetition of the mapped rnc id and the rnc id in the current network.

303: MME sends RANInformationRelay information relay message to target SGSN, and the message carries the RNCID as source address;

the MME may obtain RIM routing information from the received directnformationtransfer message, extract RAI (routing area identity) information in the RIM routing information, construct an FQDN (fully qualified domain name) using the RAI, and query the FQDN to a DNS (domain name server) to obtain a corresponding target SGSN. In this embodiment, if the RAI is changed during the mapping in step 302, the DNS will perform corresponding configuration according to the change, so as to facilitate the query, which is not described herein.

304: after receiving the RANInformationRelay message, the target SGSN sends a DirectInformationTransfer message to the BSC or the RNC, wherein the message carries the RNCID as a source address;

the target SGSN may find the corresponding BSC or RNC from the DNS according to the RIM routing address in the received ranlnformationrelay message.

305: after receiving the directnformationtransfer message, the BSC or RNC returns a directnformationtransfer message carrying system information of the target cell to the SGSN, and the message carries the RNC id as a destination address;

306: after receiving the DirectInformationTransfer message carrying the system information of the target cell, the SGSN forwards the DirectInformationTransfer message to the MME;

the SGSN may obtain RIM routing information from the received directnformationtransfer message, extract RAI information in the RIM routing information, and obtain a corresponding MME in DNS query according to the RAI information.

307: after receiving the directnformationtransfer message carrying the system information of the target cell, the MME replaces the rnc id in the message with the corresponding enode bid according to the stored mapping relationship, and sends a message including the enode bid to the corresponding eNodeB.

In the method provided by this embodiment, an MME receives an RIM request message, maps an eNodeB identifier therein to an RNC identifier that does not exist in an existing network, and stores a mapping relationship between the eNodeB identifier and the RNC identifier; requesting system information of a target cell from a BSC or an RNC according to the RNC identification, receiving an RIM response message carrying the system information, replacing the RNC identification in the RIM response message with a corresponding eNodeB identification according to the mapping relation, and sending the RIM response message containing the eNodeB identification to the corresponding eNodeB so that the eNodeB obtains the system information of the target cell; and because the MME maps the eNodeB identifier to the RNC identifier, the R9RIM process can be realized without upgrading SGSN in the current network, thereby providing reliable guarantee for realizing the rapid deployment of the CSFB service, reducing the investment of operators and ensuring the quality of the voice service.

Example 4

Referring to fig. 4, this embodiment provides a method for acquiring system information, where an existing network SGSN is not upgraded, and the SGSN adapts an R7RIM process to complete R9RIM, so as to help complete fast deployment of an R9CSFB service, where the method includes:

401: the eNodeB sends a DirectInformationTransfer message to the MME to request to acquire the system information of the target cell;

in this embodiment, based on the R9RIM procedure, the target cell refers to a cell in which the UE is located after falling back from the LTE network to the 2G/3G network, and the eNodeB acquires system information of the target cell for the UE to complete the R9CSFB procedure. The system information refers to SIBs.

Wherein, the source address in the message is eNodeBID, and the destination address is cell ID of 2G network or RNCID of 3G network.

402: the MME receives a DirectInformationTransfer direct information transfer message sent by the eNodeB and sends a RANInformationRelay information relay message to the target SGSN;

the MME may obtain RIM routing information from the received directnformationtransfer message, extract RAI information in the RIM routing information, construct an FQDN using the RAI, and query the DNS with the FQDN to obtain a corresponding target SGSN.

403: after receiving the RANInformationRelay message, the target SGSN maps the eNodeBID in the message to an RNCID which is an RNCID not existing in the current network, and stores the mapping relation between the eNodeBID and the RNCID;

wherein, the mapped RNCID replaces eNodeBID as the source address in the DirectInformationTransfer message.

In this embodiment, the RNC identifier includes a country code MCC, a mobile network code MNC, a location area code LAC, a routing area code RAC, and an RNC id, and may be represented as follows:

MCC+MNC+LAC+RAC+RNCID；

the RNC identity having the above expression satisfies at least one of the following conditions:

the MCC is the MCC which does not exist in the current network;

the MNC is not existed in the current network;

the LAC is the LAC which does not exist in the current network;

the RAC is the RAC which does not exist in the current network;

the RNCID is the RNCID which does not exist in the current network.

For example, a LAC range may be preset, where the LAC range is a range outside the LAC of the current network, and when mapping from eNodeBID to rnc is performed, one LAC may be selected from the preset LAC range to construct rnc, and at this time, other codes in the rnc may all be codes of the current network.

In this embodiment, the mapped rnc id is an rnc id that does not exist in the current network, so that it is possible to avoid the erroneous transmission of the RIM message due to the repetition of the mapped rnc id and the rnc id in the current network.

404: the target SGSN sends a DirectInformationTransfer message to the BSC or the RNC, and the message carries the RNCID as a source address;

the target SGSN may find the corresponding BSC or RNC from the DNS according to the RIM routing address in the received ranlnformationrelay message.

405: after receiving the directnformationtransfer message, the BSC or RNC returns a directnformationtransfer message carrying system information of the target cell to the SGSN, wherein the message also carries the RNC id as a destination address;

406: after receiving the directnformationtransfer message carrying the system information of the target cell, the SGSN replaces the RNCID in the message with the corresponding eNodeBID according to the stored mapping relation and sends the message containing the eNodeBID to the MME;

the SGSN may obtain RIM routing information from the received directnformationtransfer message, extract RAI information in the RIM routing information, and obtain a corresponding MME in DNS query according to the RAI information.

407: after receiving the directnformationtransfer message carrying the system information of the target cell, the MME sends the system information of the target cell to the eNodeB corresponding to the enode b id.

In the method provided by this embodiment, an SGSN receives an RIM request message, maps an eNodeB identifier therein to an RNC identifier that does not exist in an existing network, and stores a mapping relationship between the eNodeB identifier and the RNC identifier; requesting system information of a target cell from a BSC or an RNC according to the RNC identification, receiving an RIM response message carrying the system information, replacing the RNC identification in the RIM response message with a corresponding eNodeB identification according to the mapping relation, sending the RIM response message containing the eNodeB identification to a corresponding MME, and sending the system information to the corresponding eNodeB by the MME so that the eNodeB obtains the system information of the target cell; and since the SGSN maps the eNodeB identifier to the RNC identifier, the R9RIM process can be realized without upgrading the SGSN in the current network, thereby providing reliable guarantee for realizing the rapid deployment of the CSFB service, reducing the investment of operators and ensuring the quality of the voice service.

Example 5

Referring to fig. 5, the present embodiment provides an apparatus for acquiring system information, the apparatus including:

a receiving module 501, configured to receive a wireless access point information management RIM request message;

a mapping module 502, configured to map an eNodeB identifier in the request message to a radio network controller RNC identifier, where the RNC identifier is an RNC identifier that does not exist in the current network;

a storage module 503, configured to store a mapping relationship between the eNodeB identifier and the RNC identifier;

a sending module 504, configured to request system information of a target cell from a base station controller BSC or a radio network controller RNC according to the RNC identifier;

the receiving module 501 is further configured to receive an RIM response message carrying the system information;

the mapping module 502 is further configured to replace the RNC identifier in the RIM response message with the corresponding eNodeB identifier according to the mapping relationship;

the sending module 504 is further configured to send a RIM response message containing the eNodeB identifier to the corresponding eNodeB.

In conjunction with the above apparatus, in a first implementation, the mapping module 502 is configured to:

acquiring the existing RNC identification range in the current network, and mapping the eNodeB identification in the RIM request message to any RNC identification outside the RNC identification range; or,

and selecting an RNC identifier within a preset RNC identifier range, mapping the eNodeB identifier in the RIM request message to the selected RNC identifier, wherein the preset RNC identifier range is any RNC identifier range outside the existing RNC identifier range of the current network.

In conjunction with the above apparatus, in a second implementation, the mapping module 502 is configured to:

mapping the eNodeB identifier in the RIM request message into an RNC identifier, wherein the RNC identifier comprises a country code MCC, a mobile network code MNC, a location area code LAC, a routing area code RAC and an RNCID;

wherein the RNC mark at least meets the following condition:

the MCC is the MCC which does not exist in the current network;

the MNC is not existed in the current network;

the LAC is the LAC which does not exist in the current network;

the RAC is the RAC which does not exist in the current network;

the RNCID is the RNCID which does not exist in the current network.

In conjunction with the above apparatus, in the third embodiment, the receiving module 501 is configured to: receiving an RIM request message sent by an eNodeB;

accordingly, the sending module 504 is configured to: sending RIM request message to service general wireless grouping service support point SGSN according to RNC mark, the SGSN requesting target cell system information to BSC or RNC; the receiving module 501 is configured to: and receiving the RIM response message which is sent by the SGSN and carries the system information.

In combination with the above apparatus, in the fourth embodiment, the receiving module 501 is configured to: receiving a RIM request message sent by a mobile management entity MME;

accordingly, the sending module 504 is configured to: requesting system information of a target cell from the BSC or the RNC according to the RNC identification; the receiving module 501 is configured to: receiving RIM response message carrying the system information sent by the BSC or RNC; and, the sending module 504 is configured to: and sending an RIM response message containing the eNodeB identifier to the MME, and forwarding the RIM response message to the corresponding eNodeB by the MME.

The apparatus provided in this embodiment may perform the method provided in any of the above method embodiments, and specific processes are described in the method embodiments and are not described herein again.

In the apparatus provided in this embodiment, by receiving the RIM request message, the eNodeB identifier in the RIM request message is mapped to an RNC identifier that does not exist in the current network, and the mapping relationship between the eNodeB identifier and the RNC identifier is stored; the method comprises the steps of requesting system information of a target cell from a BSC or an RNC according to an RNC mark, receiving an RIM response message carrying the system information, replacing the RNC mark in the RIM response message with a corresponding eNodeB mark according to the mapping relation, and sending the RIM response message containing the eNodeB mark to the corresponding eNodeB, so that the eNodeB obtains the system information of the target cell, and because the eNodeB mark is mapped to the RNC mark, the R9RIM process can be realized without upgrading SGSN in the current network, thereby providing reliable guarantee for realizing the rapid deployment of CSFB service, reducing the investment of operators, and ensuring the quality of voice service.

Example 6

The embodiment provides a system for acquiring system information, which includes: the apparatus for acquiring system information described in embodiment 1.

The functions of the device in this embodiment are the same as those of the device described in embodiment 1, and are not described again in this embodiment. The system may execute the method provided in any of the above method embodiments, and the specific process is described in the method embodiments and is not described herein again.

In the system provided by this embodiment, by receiving the RIM request message, the eNodeB identifier therein is mapped to an RNC identifier that does not exist in the current network, and the mapping relationship between the eNodeB identifier and the RNC identifier is stored; the method comprises the steps of requesting system information of a target cell from a BSC or an RNC according to an RNC mark, receiving an RIM response message carrying the system information, replacing the RNC mark in the RIM response message with a corresponding eNodeB mark according to the mapping relation, and sending the RIM response message containing the eNodeB mark to the corresponding eNodeB, so that the eNodeB obtains the system information of the target cell, and because the eNodeB mark is mapped to the RNC mark, the R9RIM process can be realized without upgrading SGSN in the current network, thereby providing reliable guarantee for realizing the rapid deployment of CSFB service, reducing the investment of operators, and ensuring the quality of voice service.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (11)

1. An apparatus for acquiring system information, the apparatus comprising:

a receiver for receiving a wireless access point information management (RIM) request message;

a processor, configured to map an eNodeB identifier in the RIM request message to a radio network controller RNC identifier, where the RNC identifier is an RNC identifier that does not exist in the current network;

the memory is used for storing the mapping relation between the eNodeB identification and the RNC identification;

a transmitter, configured to request system information of a target cell from a base station controller BSC or a radio network controller RNC according to the RNC identifier;

the receiver is also used for receiving a RIM response message carrying the system information;

the processor is further configured to replace the RNC identifier in the RIM response message with the corresponding eNodeB identifier according to the mapping relationship;

the transmitter is further configured to send a RIM response message containing the eNodeB identification to the corresponding eNodeB.

2. The device of claim 1, wherein the processor is configured to:

acquiring the existing RNC identification range in the existing network, and mapping the eNodeB identification in the RIM request message to any RNC identification outside the RNC identification range; or,

and selecting an RNC identifier within a preset RNC identifier range, mapping the eNodeB identifier in the RIM request message to the selected RNC identifier, wherein the preset RNC identifier range is any RNC identifier range outside the existing RNC identifier range of the current network.

3. The device of claim 1, wherein the processor is configured to:

mapping an eNodeB identifier in the RIM request message into an RNC identifier, wherein the RNC identifier comprises a country code MCC, a mobile network code MNC, a location area code LAC, a routing area code RAC and an RNCID;

wherein the RNC identification at least one of the following conditions is satisfied:

the MCC is the MCC which does not exist in the current network;

the MNC is not existed in the current network;

the LAC is the LAC which does not exist in the current network;

the RAC is the RAC which does not exist in the current network;

the RNCID is the RNCID which does not exist in the current network.

4. The apparatus of claim 1,

the receiver is used for receiving an RIM request message sent by an eNodeB;

the transmitter is used for sending RIM request information to a serving general packet radio service support point SGSN according to the RNC identification, and the SGSN requests system information of a target cell from a BSC or an RNC;

the receiver is configured to receive an RIM response message carrying the system information sent by the SGSN.

5. The apparatus of claim 1,

the receiver is used for receiving a RIM request message sent by a Mobile Management Entity (MME);

the transmitter is used for requesting system information of a target cell from the BSC or the RNC according to the RNC identification;

the receiver is used for receiving an RIM response message which is sent by the BSC or the RNC and carries the system information;

and the transmitter is used for sending an RIM response message containing the eNodeB identifier to the MME, and forwarding the RIM response message to the corresponding eNodeB by the MME.

6. A method for obtaining system information, the method comprising:

receiving a wireless access point information management (RIM) request message;

mapping an eNodeB identifier in the request message to a Radio Network Controller (RNC) identifier, wherein the RNC identifier is an RNC identifier which does not exist in the current network, and storing the mapping relation between the eNodeB identifier and the RNC identifier;

requesting system information of a target cell from a base station controller BSC or a radio network controller RNC according to the RNC identification, and receiving an RIM response message carrying the system information;

and replacing the RNC identifier in the RIM response message with the corresponding eNodeB identifier according to the mapping relation, and sending the RIM response message containing the eNodeB identifier to the corresponding eNodeB.

7. The method of claim 6, wherein mapping the evolved node B eNodeB identity in the request message to a Radio Network Controller (RNC) identity comprises:

acquiring the existing RNC identification range in the existing network, and mapping the eNodeB identification in the RIM request message to any RNC identification outside the RNC identification range; or,

and selecting an RNC identifier within a preset RNC identifier range, mapping the eNodeB identifier in the RIM request message to the selected RNC identifier, wherein the preset RNC identifier range is any RNC identifier range outside the existing RNC identifier range of the current network.

8. The method of claim 6, wherein mapping the evolved node B eNodeB identity in the request message to a Radio Network Controller (RNC) identity comprises:

mapping an eNodeB identifier in the RIM request message into an RNC identifier, wherein the RNC identifier comprises a country code MCC, a mobile network code MNC, a location area code LAC, a routing area code RAC and an RNCID;

wherein the RNC identification at least one of the following conditions is satisfied:

the MCC is the MCC which does not exist in the current network;

the MNC is not existed in the current network;

the LAC is the LAC which does not exist in the current network;

the RAC is the RAC which does not exist in the current network;

the RNCID is the RNCID which does not exist in the current network.

9. The method of claim 6, wherein receiving a wireless access point information management (RIM) request message comprises:

receiving an RIM request message sent by an eNodeB;

correspondingly, requesting system information of a target cell from a base station controller BSC or a radio network controller RNC according to the RNC identification, and receiving a RIM response message carrying the system information, wherein the RIM response message comprises:

and sending an RIM request message to a serving general wireless packet service support point (SGSN) according to the RNC identification, requesting system information of a target cell from the SGSN to a BSC or an RNC, and receiving an RIM response message carrying the system information and sent by the SGSN.

10. The method of claim 6, wherein receiving a wireless access point information management (RIM) request message comprises:

receiving a RIM request message sent by a mobile management entity MME;

correspondingly, requesting system information of a target cell from a base station controller BSC or a radio network controller RNC according to the RNC identification, and receiving a RIM response message carrying the system information, wherein the RIM response message comprises:

requesting system information of a target cell from a BSC or an RNC according to the RNC identification, and receiving an RIM response message which is sent by the BSC or the RNC and carries the system information;

and sending a RIM response message containing the eNodeB identifier to the corresponding eNodeB, including:

and sending an RIM response message containing the eNodeB identifier to the MME, and forwarding the RIM response message to the corresponding eNodeB by the MME.

11. A system for obtaining system information, the system comprising: the apparatus of any one of claims 1 to 5.