CN114466368B - Device and method for realizing multiplexing and demultiplexing of base station - Google Patents
Device and method for realizing multiplexing and demultiplexing of base station Download PDFInfo
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- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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Abstract
The invention discloses a device and a method for realizing multiplexing and demultiplexing of a base station, belonging to the technical field of mobile communication networks. The device is deployed between a base station and a core network, a base station group accessed to the device is virtualized into a virtualized base station, a standard 3GPP protocol link is established with an operator core network through S1-C and N2 interface signaling, and the device simulates AMF and MME functions of the core network to be used for the base station group; the network access device supports the access of N base stations to write the IP addresses and ports, TAC, PLMN and slicing information of the AMF and MME control surface data surfaces provided by the device in batches, the N base stations can open services, the purpose that the N base stations are multiplexed into one virtual base station to be connected with an operator core network is achieved, the N base stations can be inversely demultiplexed and simultaneously access the operator core network, the safe interception can be achieved, 4G and 5G cellular networks can be flexibly opened in batches, the operators of the resident core network can be flexibly selected, the device can be shared by a plurality of operators, and the autonomy of the enterprise self-built 4G and 5G private network is endowed.
Description
Technical Field
The invention discloses a device and a method for realizing multiplexing and demultiplexing of a base station, relates to a mobile communication network technology, and belongs to the technical field of electric communication.
Background
The conventional base station and core network connection procedure is that the base station writes the IP address and ports 36412/38412 of MME (Mobility MANAGEMENT ENTITY )/AMF (ACCESS AND Mobility Management Function, access and Mobility management function). In the 4/5G fusion scene, the IP of MME needs to be written in the 4G base station, the IP of AMF needs to be written in the 5G base station, and the configuration and operation and maintenance workload is increased greatly.
In the base station capacity expansion scene, the traditional base station capacity expansion method needs to go to a back end core network and a network manager to do data, configure and transmit the data, has long construction period and large maintenance workload, and aims to reduce the configuration and operation and maintenance workload of the base station capacity expansion by deploying a device for multiplexing and demultiplexing base station protocols between the base station and the core network, easily realize the capacity expansion and maintenance of the coverage area of a cellular network, realize the common establishment and sharing of a 4G/5G base network and the base station by a plurality of operators, endow a 5G private network operator with the capability of switching and selecting a third party operator, greatly reduce the OPEX of the network operator, and greatly reduce the CAPEX of the repeated purchasing of the base station by the network operator.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a device and a method for realizing multiplexing and demultiplexing of a base station, wherein the device and the method are used for realizing the multiplexing and demultiplexing of the base station by simulating the establishment of an S1-C or N2 link between a base station and a core network, analyzing an nS1/N21 interface signaling on a base station group side and an S1-C/N2 interface signaling on an AMF/MME side, virtualizing a plurality of base stations into a virtual base station facing a rear end core network in a mode of multiplexing an nS1/N21 interface signaling ID, and completing the modification and the transmission of S1-C/N2 interface signaling content by one virtual base station facing the rear end core network and the AMF/MME, and transmitting the nS1/N21 interface signaling to the base station corresponding to the ID in a mode of demultiplexing the S1-C/N2 interface signaling ID, so that the technical problems of large configuration and operation and maintenance workload of the existing base station expansion scheme are solved, and the purpose of multiplexing the base station or the core network can be realized under the condition that each accessed base station is not configured with an MME/AMF IP one by one.
The invention adopts the following technical scheme for realizing the purposes of the invention:
An apparatus for implementing base station multiplexing, having multiple interface capabilities, having ultra-high capacity switching capabilities, for accessing a large number of high density base stations, the apparatus comprising: the system comprises a multi-port switching module, a base station protocol decoding module, a multiplexing and demultiplexing module, an S1-C/N2 core network registration module and an nS1/N21 base station management module.
For the nS1/N21 interface signaling from the base station group side received by the multi-port exchange module, the base station protocol decoding module transparently transmits the base station group side nS1/N21 interface signaling to the S1-C/N2 core network registration module and decodes the nS1/N21 interface signaling, extracts the S1AP-ID/NGAP-ID and the base station ID number distributed by the base station group side for the UE user and sends the same to the multiplexing and demultiplexing module, the multiplexing and demultiplexing module multiplexes and replaces the S1AP-ID/NGAP-ID, the base station ID number is vS1AP-ID/vNGAP-ID and the virtual base station ID, and the base station protocol decoding module transparently transmits the vS1AP-ID/vNGAP-ID and the virtual base station ID information to the S1-C/N2 core network registration module. The S1-C/N2 core network registration module encodes the nS1/N21 interface signaling into the S1-C/N2 interface signaling of the 3GPP standard according to the vS1AP-ID/vNGAP-ID and the virtual base station ID number, and the S1-C/N2 interface signaling of the 3GPP standard is transmitted to the AMF/MME of the core network of the back-end operator through the base station protocol decoding module and the multi-port exchange module and the PTN/IPRAN.
For the S1-C/N2 interface signaling from the AMF/MME side received by the multi-port exchange module, the base station protocol decoding module transparently transmits the S1-C/N2 interface signaling to the nS1/N21 base station management module and decodes the S1-C/N2 interface signaling, the vS1AP-ID/vNGAP-ID and the virtual base station ID communicated between the S1-C/N2 core network registration module and the operator core network AMF/MME are extracted and are sent to the multiplexing and demultiplexing module, the multiplexing and demultiplexing module demultiplexes the S1AP-ID/NGAP-ID distributed by the user UE by the base station group side after the substitution and the base station ID number to the nS1/N21 base station management module, the nS1/N21 base station management module encodes the S1-C/N2 interface signaling into the nS1/N21 interface signaling of the 3GPP standard according to the replaced S1AP-ID and the base station ID number, and the nS1/N21 interface signaling of the 3GPP standard is transmitted to the multi-port exchange module by the base station protocol decoding module according to the base station protocol decoding module, and the base station protocol decoding module carries out the multi-port exchange module to the multi-port exchange module, and the multi-port exchange module comprises the multi-port exchange module receives the data from the user equipment, and the network interface signaling from the user equipment, and the network interface network equipment, and the network equipment module, and the network equipment module.
Further, for the requirement of multi-base station access under the 4G/5G fusion scene, by disposing a device for realizing multiplexing and demultiplexing of base stations between a base station group side and an AMF/MME side, base station information accessed by a multi-port switching module is configured as MME IP/AMF IP, PLMN, TAC and slice information in batches, and specifically, the MME IP address and AMF IP address, PLMN, TAC and slice information configured by a network management system are written into an nS1/N21 base station management module.
Further, the device for implementing multiplexing and demultiplexing of the base station has a third party core network configuration function, specifically: accessing optical fiber links of a plurality of core networks of a third party on a multi-port switching module, completing interconnection and interworking of standard protocols, and configuring information such as MME IP/AMF IP, TAC, PLMN, slicing and the like of the core networks of the third party on a network management system; meanwhile, a core network registration module responsible for providing the virtual base station for the back-end core network can be registered to a plurality of operators simultaneously, so that the sharing and switching of the set of virtual base station by the operators are realized, namely the sharing of the device by the operators is realized.
Further, a device for implementing multiplexing and demultiplexing of a base station has the capability of modifying S1-C/N2 signaling content, specifically: the session of the nS1/N21 interface protocol and the S1-C/N2 interface is decoded by a base station protocol decoding module with decoding capability, and the S1-C/N2 interface signaling is converted into the S1-C/N2 interface signaling of the 3GPP standard by an S1-C/N2 core network registration module with encoding capability according to the replaced ID, so that modification of S1-C/N2 signaling content including but not limited to S1AP-ID/NGAP-ID is realized. The nS1/N21 base station management module with coding capability converts the S1-C/N2 interface signaling into the nS1/N21 interface signaling of the 3GPP standard according to the replaced ID, and modification of nS1/N21 signaling content including but not limited to S1AP-ID/NGAP-ID is realized.
Further, when N base stations access the multi-port exchange module, the network management system writes preset AMF/MME IP addresses, PLMN, TAC and slice information into the base station groups accessed to the multi-port exchange module in batches, so as to realize the interaction flow of the base station groups registering to the nS1/N21 base station management module through the nS1/N21 interface signaling protocol and realize the mobility management of the base station groups.
Further, the device for implementing multiplexing and demultiplexing of the base station can be inserted into a position between the base station and the core network defined by non-3 GPP specifications and is in butt joint with the core networks of a plurality of operators, the multi-port switching module is provided with N1, N2, N3, S1-C and S1-U interfaces, can be connected with the core networks of the plurality of operators, can also be connected with the self-owned core network of an enterprise, and can complete switching of the plurality of core networks, so that the device can be shared by the plurality of operators, and the utilization rate and the spectrum utilization rate of a base station group are improved.
Further, the device for implementing multiplexing and demultiplexing of the base station further comprises a network management system connected to the device through a multi-port switching module, wherein the network management system is used for configuring information and IP addresses of the S1-C/N2 core network registration module, configuring information and IP addresses of the nS1/N21 base station management module, configuring mapping relations of base station ID numbers, AMF/MME side S1-C/N2 interface signaling vS1AP-ID/vNGAP-ID and virtual base station ID numbers, and configuring TAC and PLMN of operators and slicing information parameters.
Further, an apparatus for implementing multiplexing and demultiplexing of a base station includes n:1, n is [1:99999], and the multiplexing capability of the base station is n times, theoretically infinite. When the device is inserted into a position between a base station defined by non-3 GPP specifications and a core network, N base stations are supported to be multiplexed into one base station, 3GPP protocol establishment and communication with a network element of the core network are completed, after a core network side successfully accesses the virtual base station of the device, NGAP and S1AP protocols of the core network are inversely demultiplexed by the device, and then N entity base stations are accessed in a demultiplexing mode.
The invention adopts the technical scheme and has the following beneficial effects:
(1) The base station multiplexing and demultiplexing device disclosed by the invention is deployed between the base station defined by the 3GPP specification and the core network, so that construction can be performed quickly, thousands of base stations can be deployed quickly, the participation of a rear core network and network management staff is not needed, the workload is greatly reduced, if 1000 base stations are deployed, the workload is changed into 1/1000 of the original workload, and the operation and maintenance expenditure of mobile operators and enterprise private networks and the repeated purchase cost of the base stations are greatly reduced.
(2) The base station multiplexing and demultiplexing device disclosed by the invention can be deployed between a base station and a core network, and is accessed to the core networks of a plurality of operators or the enterprise self-operating core network through a multi-port switching device in a mode defined by non-3 GPP specifications, and the sharing and switching of the plurality of operators are supported, so that the utilization rate and the frequency spectrum occupancy rate of the base station are improved.
Drawings
Fig. 1 is a diagram of an architecture for implementing base station multiplexing and demultiplexing in accordance with the present invention.
Fig. 2 is a flowchart for relaying the N2 signaling on the gNB side to the AMF/MME side.
Fig. 3 is a flowchart for relaying the N2 signaling of the AMF/MME side to the gNB side.
Detailed Description
The technical scheme of the invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the device for implementing multiplexing and demultiplexing of base stations disclosed in the invention is deployed between a base station group and an AMF/MME, and the device virtualizes a new virtual base station signaling and a core network AMF/MME to establish an S1-C or N2 link for relaying the S1/N2 signaling between the base station group and the AMF/MME, and simultaneously simulates functions of the AMF and MME of the core network. For the base station group, the device is AMF/MME; for AMF/MME, the device is a base station.
An apparatus for implementing multiplexing and demultiplexing of a base station, comprising: the system comprises a multi-port switching module S, a base station protocol decoding module M, a multiplexing and demultiplexing module MUX, an S1-C/N2 core network registration module R, nS and an N21 base station management module T.
The multi-port switching module S is used for providing access port resources for the base station group and supporting 4 port bandwidths of kilomega, trillion, 25GE and 100 GE. The multi-port switching module S is provided with an nS1/N21 interface, an S1-C/N2 interface and an N1/N2/N3/S1-C/S1-U interface, wherein the nS1/N21 interface is used for interacting nS1/N21 interface signaling of a base station group side with the base station management module T through the base station protocol decoding module M, and the S1-C/N2 interface is used for interacting S1-C/N2 interface signaling of an AMF/MME side with the back end core network through the base station protocol decoding module M by the S1-C/N2 core network registration module R. The N1/N2/N3/S1-C/S1-U interface can also be used to access core networks of multiple operators or enterprise self-owned core networks.
The multi-port exchange module S communicates with the base station protocol decoding module M through an S1/N21 interface, transmits nS1/N21 interface signaling from a base station or S1-C/N2 interface signaling from an AMF/MME to the base station protocol decoding module M, receives nS1/N21 interface signaling of a 3GPP standard or S1-C/N2 interface signaling of the 3GPP standard output by the base station protocol decoding module M, transmits the nS1/N21 interface signaling of the 3GPP standard to a base station corresponding to an ID, transmits the S1-C/N2 interface signaling of the 3GPP standard to a rear PTN (Packet Transport Network )/IPRAN (Internet Protocol Radio Access Network, radio access network IP) and transmits UE user plane data and control plane data to a core network by the PTN/IPRAN according to signaling of the 3GPP standard.
The base station protocol decoding module M carries out transparent transmission and decoding on nS1/N21 interface signaling from a base station or S1-C/N2 interface signaling from an AMF/MME, the nS1/N21 interface signaling is transmitted to the S1-C/N2 core network registration module R, the S1-C/N2 interface signaling is transmitted to the nS1/N21 base station management module T, and M x N S1AP-ID/NGAP-ID, N base station ID numbers or vS1AP-ID/vNGAP-ID of communication between the core network registration module and an operator core network AMF/MME allocated to M UE users by N base stations are obtained; the base station protocol decoding module M interacts vS1AP-ID/vNGAP-ID and virtual base station ID number with the multiplexing and demultiplexing module MUX, receives the vS1AP-ID/vNGAP-ID and virtual base station ID number after multiplexing and replacing by the multiplexing and demultiplexing module, and forwards the vS1AP-ID/vNGAP-ID and virtual base station ID number after multiplexing and replacing by the multiplexing and demultiplexing module to the S1-C/N2 core network registration module R; the receiving multiplexing and demultiplexing module demultiplexes the replaced S1AP-ID/NGAP-ID and the entity base station ID number, and forwards the demultiplexed replaced S1AP-ID/NGAP-ID and the entity base station ID number to the base station management module T.
The S1-C/N2 core network registration module R re-encodes the nS1/N21 interface signaling into the S1-C/N2 interface signaling of the 3GPP standard according to the multiplexing and de-multiplexing module multiplexing the replaced vS1AP-ID/vNGAP-ID and the virtual base station ID number, the S1-C/N2 interface signaling of the 3GPP standard is transmitted to the multi-port exchange module through the base station protocol decoding module M, the MME/AMF of the operator core network is directly reached, the AMF/MME of the rear operator is registered and interacted through the S1-C/N2 interface signaling, which is equivalent to virtualizing the base station group accessed to the multi-port exchange module S into a virtual AMF/MME of the rear operator, and the interaction and registration flow of the S1-C/N2 interface signaling of the 3GPP standard is completed.
The base station management module T encodes the S1-C/N2 interface signaling into the nS1/N21 interface signaling of the 3GPP standard according to the S1AP-ID/NGAP-ID and the base station ID number after the multiplexing and demultiplexing module demultiplexes the replacement, and the nS1/N21 interface signaling of the 3GPP standard is transmitted to the multi-port switching module S through the base station protocol decoding module M to directly reach the base station of the ID number corresponding to the base station group. The method is equivalent to the pre-arranged MME/AMF network element defined by 3GPP, and provides a virtual AMF/MME mobility management capability for the base station group connected by the multi-port switching module S.
For uplink nS1/N21 interface signaling from a base station, a base station protocol decoding module M decodes the nS1/N21 interface signaling and extracts an S1AP-ID/NGAP-ID and a base station ID number, transparently transmits the nS1/N21 interface signaling to an S1-C/N2 core network registration module R, and sends the extracted S1AP-ID/NGAP-ID and base station ID number to a multiplexing and demultiplexing module; the virtual vS1AP-ID/vNGAP-ID and a virtual base station ID number issued by the multiplexing and demultiplexing module are transmitted to an S1-C/N2 core network registration module R through a base station protocol decoding module M; the S1-C/N2 core network registration module R recodes the nS1/N21 interface signaling content into an S1AP/NGAP standard protocol according to the virtual vS1AP-ID/vNGAP-ID and a virtual base station ID number issued by the multiplexing and demultiplexing module to obtain the S1-C/N2 interface signaling of the 3GPP standard, and transmits the S1-C/N2 interface signaling after encoding the vS1AP-ID/vNGAP-ID and the virtual base station ID number to the core network of the back-end operator through the base station protocol decoding module M and the multi-port exchange module S. It can be seen that the device for implementing multiplexing and demultiplexing of base stations provided by the invention initiates registration and interactive signaling procedures to the operator core network AMF/MME after equivalent of the base station group accessed to the multi-port switching module as a virtual base station by replacing the ID of the nS1/N21 interface signaling and converting the nS1/N21 interface signaling into the S1-C/N2 interface signaling of the 3GPP standard.
For downlink S1-C/N2 interface signaling from an AMF/MME, a base station protocol decoding module M transparently transmits the S1-C/N2 interface signaling from the AMF/MME to an nS1/N21 base station management module, decodes the S1-C/N2 interface signaling to obtain vS1AP-ID/vNGAP-ID and virtual base station ID numbers communicated between an S1-C/N2 core network registration module and an operator core network AMF/MME, and sends the vS1AP-ID/vNGAP-ID and virtual base station numbers to a multiplexing and demultiplexing module MUX; the multiplexing and demultiplexing module MUX inquires an ID multiplexing table and sends the S1AP-ID/NGAP-ID and the base station ID corresponding to the vS1AP-ID/vNGAP-ID and the virtual base station ID number to the base station protocol decoding module M; s1AP-ID/NGAP-ID and base station ID number are transmitted to a base station management module T through a base station protocol decoding module M, the base station management module T recodes the S1-C/N2 interface signaling content into an S1AP/NGAP protocol according to the S1AP-ID/NGAP-ID and the base station ID number to obtain 3GPP standard nS1/N21 interface signaling, and the base station protocol decoding module M transmits the 3GPP standard nS1/N21 interface signaling to the base station of the corresponding ID number in the front base station group through the nS1/N21 interface of the multi-port exchange module S. Therefore, the device for realizing multiplexing and demultiplexing of the base station provided by the invention performs mobility management on the base station group accessed to the multi-port switching module by replacing the ID of the S1-C/N2 interface signaling and converting the S1-C/N2 interface signaling into the nS1/N21 interface signaling of the 3GPP standard.
The multiplexing and demultiplexing module MUX is used for performing replacement operation on the S1AP-ID/NGAP-ID, the base station ID number or the virtual base station of the S1-C/N2 core network registration module R allocated to each UE user by each base station to the vS1AP-ID/vNGAP-ID registered by the operator core network, in particular to synthesize m x N S1 AP-IDs/NGAP-IDs and N base station ID numbers allocated to m UE users by N base stations into m x N virtual vS1 AP-IDs/vNGAP-IDs and one virtual base station ID number, the operator core network vS1AP-ID/vNGAP-ID is demultiplexed into S1AP-ID/NGAP-ID and N base station ID numbers distributed by the base station group for m UE users, an ID multiplexing table representing the corresponding relation between the S1AP-ID/NGAP-ID and the vS1AP-ID/vNGAP-ID is stored, the state of whether an STCP link is established or not, the S1AP-ID/NGAP-ID, the base station ID number, the vS1AP-ID/vNGAP-ID, the virtual base station ID number and S1/N2 protocol process information are recorded in the ID multiplexing table, and the ID multiplexing table can be updated through a network management system.
When a plurality of 4G/5G base stations are accessed to the multi-port switching module S, configuration data of the accessed N base stations are written into IP addresses and ports, TACs and slice information data of the AMF/MME provided by the nS1/N21 base station management module T, and information of each base station can be written in batch through a network management system, so that multiplexing of one base station group is realized and signal opening is completed.
When a third-party operator core network accesses the multi-port switching module S through the optical fiber, one or more AMF/MME IP addresses, PLMN, TAC and slice information of the third-party operator core network are configured in the S1-C/N2 core network registration module R, and the S1-C/N2 interface signaling of the 3GPP standard and the registration interaction flow of the one or more third-party operator core networks are completed.
As shown in fig. 2, the procedure of the base station multiplexing and demultiplexing device relaying the N21 signaling on the gNB side to the AMF/MME side is as follows: the base station multiplexing and demultiplexing device immediately initiates SCTP connection to the AMF/MME after being electrified, the base station multiplexing and demultiplexing device judges whether an SCTP link between the base station multiplexing and demultiplexing device and the AMF/MME is established after receiving a NG SETUP message of the gNB, if the SCTP link is established and parameters carried by the gNB are legal, the base station multiplexing and demultiplexing device returns a message of a NG SETUP successful response to the gNB, otherwise returns a message of a failure response, and updates state information of whether the STCP link is established or not in an ID multiplexing table; when receiving the UE user-level nS1/N21 interface signaling, the base station multiplexing and demultiplexing device synthesizes m×n virtual vS1AP-ID/vNGAP-ID and a virtual base station ID number based on m×n S1AP-ID/NGAP-ID and N base station ID numbers allocated by N base stations to m UE users, then replaces S1AP-ID/NGAP-ID and base station ID numbers in S1AP and NGAP protocols with m×n vS1AP-ID/vNGAP-ID and a virtual base station ID number, recodes the S1AP/NGAP protocol according to m×n vS1AP-ID/vNGAP-ID and a virtual base station ID number to obtain S1-C/N2 interface signaling of 3GPP standard, sends S1-C/N2 interface signaling of 3GPP standard to AMF/MME of a provider, and registers the S1AP-ID/vNGAP-ID and a virtual base station ID number to the operator core network according to m×n virtual base station ID numbers.
As shown in fig. 3, the procedure of the base station multiplexing/demultiplexing device relaying the N2 signaling of the AMF/MME side to the gNB side is as follows: when receiving an N2 signaling from an AMF/MME, the base station multiplexing and demultiplexing device searches an S1AP-ID/NGAP-ID of a multiplexing and demultiplexing module according to a vS1AP-ID/vNGAP-ID and a virtual base station ID number carried in the N2 signaling: the vS1AP-ID/vNGAP-ID multiplexing table obtains S1AP-ID/NGAP-ID and N base station ID numbers allocated to m UE users by a base station group, replaces vS1AP-ID/vNGAP-ID and virtual base station ID numbers in N2 signaling by S1AP-ID/NGAP-ID and N base station ID numbers allocated to m UE users by the base station group, recodes S1-C/N2 interface signaling into standard S1AP/NGAP protocol according to S1 AP-N2 interface signaling allocated to m UE users by the base station group, obtains nS1/N21 interface signaling of 3GPP standard, sends nS1/N21 interface signaling of 3GPP standard to a base station of corresponding ID according to N base station ID numbers after the substitution, and then manages mobility of m UE users accessing to a front end base station group according to S1AP-ID/NGAP-ID and N base station ID numbers allocated to m UE users by the base station group after the substitution.
For the 4G base station eNodeB, the eNodeB is equivalent to gNB, the S1 signaling is equivalent to N2, the S1AP is equivalent to NGAP, the processing flow of the device for relaying the N2 signaling of the gNB side to the AMF side and the processing flow of the device for relaying the N2 signaling of the AMF/MME side to the gNB side are consistent with the processing flows of the 4G base station eNodeB and the MME side.
Claims (7)
1. An apparatus for implementing multiplexing and demultiplexing of a base station, comprising:
The multi-port switching module is used for providing an access port for the base station group, transmitting the nS1/N21 interface signaling or the AMF/MME side S1-C/N2 interface signaling of the base station group to the base station protocol decoding module, receiving the nS1/N21 interface signaling or the S1-C/N2 interface signaling of the 3GPP standard output by the base station protocol decoding module, transmitting the nS1/N21 interface signaling of the 3GPP standard to the base station group, transmitting the S1-C/N2 interface signaling of the 3GPP standard to the PTN/IPRAN, and transmitting the S1-C/N2 interface signaling of the 3GPP standard to a core network of an operator through the PTN/IPRAN;
A base station protocol decoding module, which transmits the nS1/N21 interface signaling to the S1-C/N2 core network registration module at the base station group side and decodes the nS1/N21 interface signaling, transmits the S1-C/N2 interface signaling to the nS1/N21 base station management module at the AMF/MME side and decodes the S1-C/N2 interface signaling, extracts and outputs the S1AP-ID/NGAP-ID allocated to the UE user at the base station group side, and the base station ID number to the multiplexing and demultiplexing module, receives the vS1AP-ID/vNGAP-ID and the virtual base station ID number multiplexed and replaced by the multiplexing and demultiplexing module, and transmits the vS1AP-ID/vNGAP-ID and the virtual base station ID number to the S1-C/N2 core network registration module, extracting and outputting vS1AP-ID/vNGAP-ID and virtual base station ID number sent by an operator core network to an S1-C/N2 core network registration module, receiving S1AP-ID/NGAP-ID and base station ID number distributed by a multiplexing and demultiplexing module for UE users at a base station group side after demultiplexing and replacing, and transmitting S1AP-ID/NGAP-ID and base station ID number distributed by the multiplexing and demultiplexing module for UE users at the base station group side after demultiplexing and replacing to an nS1/N21 base station management module, and transmitting S1-C/N2 interface signaling of 3GPP standard and nS1/N21 interface signaling of 3GPP standard to a multi-port exchange module;
multiplexing and demultiplexing module, multiplexing and replacing the base station group side for the S1AP-ID/NGAP-ID allocated to the UE user, base station ID number for vS1AP-ID/vNGAP-ID, virtual base station ID number, transmitting operator core network to vS1AP-ID/vNGAP-ID of S1-C/N2 core network registration module, demultiplexing and replacing virtual base station ID number for the S1AP-ID/NGAP-ID allocated to the UE user on base station group side, storing ID multiplexing table representing mapping relation between base station group side S1AP-ID/NGAP-ID and core network vS1AP-ID/vNGAP-ID, wherein the ID multiplexing table stores state information of STCP link establishment or not, S1AP-ID/NGAP-ID allocated to the UE user on base station group side, base station ID number, vS1AP-ID/vNGAP-ID, virtual base station ID number, S1/N2 protocol information transmitted to the S1-C/N2 core network registration module by the operator core network, the multiplexing operation module is that the multiplexing operation module is specific to the multiplexing module: the method comprises the steps of synthesizing m x n S1 AP-IDs/NGAP-IDs and n base station ID numbers allocated to m UE users by n base stations into m x n virtual vS1 AP-IDs/vNGAP-IDs and a virtual base station ID number, and demultiplexing an operator core network vS1AP-ID/vNGAP-ID into S1 AP-IDs/NGAP-IDs and n base station ID numbers allocated to m UE users by a base station group;
The S1-C/N2 core network registration module recodes the nS1/N21 interface signaling into the S1-C/N2 interface signaling of the 3GPP standard according to the vS1AP-ID/vNGAP-ID and the virtual base station ID number which are multiplexed and replaced by the multiplexing and demultiplexing module, and outputs the S1-C/N2 interface signaling of the 3GPP standard to the base station protocol decoding module; the method comprises the steps of,
And the nS1/N21 base station management module recodes the S1-C/N2 interface signaling into the nS1/N21 interface signaling of the 3GPP standard according to the S1AP-ID/NGAP-ID and the base station ID number distributed for the UE user by the base station group side after the multiplexing and demultiplexing module demultiplexes and replaces, and outputs the nS1/N21 interface signaling of the 3GPP standard to the base station protocol decoding module.
2. The apparatus for implementing multiplexing and demultiplexing of base station according to claim 1, wherein said apparatus further comprises a network management system connected to the apparatus through a multi-port switching module for configuring information and IP address of the S1-C/N2 core network registration module, for configuring information and IP address of the nS1/N21 base station management module, for updating an ID multiplexing table for configuring TAC and PLMN of an operator core network, and slice parameters.
3. The apparatus for implementing multiplexing and demultiplexing according to claim 1, wherein when N base stations access to the multi-port switching module, the preset AMF/MME IP address, TAC, PLMN, and slice information are batch-written into the base station group accessed to the multi-port switching module by the nS1/N21 base station management module.
4. The apparatus for implementing multiplexing and demultiplexing according to claim 1, wherein when one or more third party operator core networks access the multi-port switching module through the optical fiber link, the AMF/MME IP address and PLMN, TAC, slice information provided by the one or more third party operator core networks are configured through the S1-C/N2 core network registration module.
5. The apparatus according to claim 1, wherein the multi-port switching module has and supports N1, N2, N3, S1-C, S1-U interfaces for multiple operator core network accesses.
6. A method for realizing multiplexing base station is characterized in that a device for realizing multiplexing and demultiplexing base station as set forth in claim 1 is deployed on a PTN/IPRAN base station transmission line between a base station group side and a core network, nS1/N21 interface signaling of the base station group side is relayed to an AMF/MME side, after the device is electrified and establishes an SCTP link with the AMF/MME, received nS1/N21 interface signaling of the base station group side is decoded, S1AP-ID/NGAP-ID and base station ID numbers allocated to UE users by base stations on the base station group side are extracted, S1AP-ID/NGAP-ID and base station ID numbers allocated to the UE users by base stations are multiplexed and replaced by virtual vS1AP-ID/vNGAP-ID and virtual base station ID numbers, and the received nS1/N21 interface signaling of the base station group side is recoded into S1-C/N2 interface signaling of 3GPP standard and is sent to a core network at the back end according to the virtual vS1AP-ID/vNGAP-ID and virtual base station ID numbers.
7. A method for implementing base station demultiplexing is characterized in that a device for implementing base station multiplexing demultiplexing as claimed in claim 1 is deployed on a PTN/IPRAN transmission line between a base station group side and a core network, N2/S1-C interface signaling of an AMF/MME side is relayed to the base station group side, received S1-C/N2 interface signaling of the AMF/MME side is decoded, vS1AP-ID/vNGAP-ID and virtual base station ID communicated between a core network registration module and an operator core network AMF/MME are extracted, vS1AP-ID/vNGAP-ID communicated between the core network registration module and the operator core network AMF/MME are demultiplexed into S1AP-ID/NGAP-ID and base station ID numbers distributed to UE users on the base station group side, S1-C/N2 interface signaling of the AMF/MME side is recoded into nS1/N21 interface signaling of 3GPP standard according to the S1AP-ID/NGAP-ID and base station ID numbers distributed to UE users on the base station group side, and the corresponding base station ID number is sent to the base station 21 interface of the corresponding standard nGPP signaling.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000042685A (en) * | 1998-12-26 | 2000-07-15 | 조정남 | Virtual base station system using same base station hardware |
| CN102932770A (en) * | 2011-08-10 | 2013-02-13 | 中兴通讯股份有限公司 | Home base station identity method and device |
| CN103313305A (en) * | 2013-06-26 | 2013-09-18 | 京信通信系统（中国）有限公司 | Gateway device and base station system |
| CN105228169A (en) * | 2015-10-27 | 2016-01-06 | 京信通信技术(广州)有限公司 | A kind of BTS management control method and device |
| CN107277934A (en) * | 2016-04-08 | 2017-10-20 | 中国电信股份有限公司 | Method for building up and system, the collocation method of Base Station Identification and system are connected between base station |
| CN107534852A (en) * | 2015-05-14 | 2018-01-02 | 华为技术有限公司 | Based on the message treatment method under base station networking environment, device and equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2009119833A1 (en) * | 2008-03-28 | 2011-07-28 | 日本電気株式会社 | Mobile communication system, handover method between different types of access networks, mobile terminal, server |
| US11627478B2 (en) * | 2017-10-18 | 2023-04-11 | Parallel Wireless, Inc. | Virtualized cell architecture |
-
2022
- 2022-01-26 CN CN202210092029.1A patent/CN114466368B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000042685A (en) * | 1998-12-26 | 2000-07-15 | 조정남 | Virtual base station system using same base station hardware |
| CN102932770A (en) * | 2011-08-10 | 2013-02-13 | 中兴通讯股份有限公司 | Home base station identity method and device |
| CN103313305A (en) * | 2013-06-26 | 2013-09-18 | 京信通信系统（中国）有限公司 | Gateway device and base station system |
| CN107534852A (en) * | 2015-05-14 | 2018-01-02 | 华为技术有限公司 | Based on the message treatment method under base station networking environment, device and equipment |
| CN105228169A (en) * | 2015-10-27 | 2016-01-06 | 京信通信技术(广州)有限公司 | A kind of BTS management control method and device |
| CN107277934A (en) * | 2016-04-08 | 2017-10-20 | 中国电信股份有限公司 | Method for building up and system, the collocation method of Base Station Identification and system are connected between base station |
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