5GC signaling shunting system and method
By using signaling shunt device clusters and multiple analysis devices in the 5GC signaling shunt system, the slice and shunt of massive signaling is realized, the problem of insufficient signaling processing capabilities is solved, and distributed signaling processing and high efficiency is realized signaling analysis.
Patent Information
- Application Number
- CN202411218309.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2024-12-24
AI Technical Summary
5GC signaling processing capabilities are limited, and massive signaling traffic is difficult to effectively divert and analyze, making it difficult to monitor signaling link payload and resource usage.
Design a 5GC signaling shunt system, through multiple signaling optical fibers and signaling shunt equipment clusters, signaling is gathered and diverted to multiple signaling analysis devices as needed, and using signaling decoding modules, signaling association modules and signaling Let the shunt module decode, correlate and shunt signaling to realize distributed signaling processing.
It realizes slicing and shunting of massive signaling traffic, and performs diversion in different dimensions according to the signaling purpose, avoids bottlenecks of central nodes, and expands processing capabilities as the equipment increases, and can be effectively processed regardless of the traffic size.
Smart Images
Figure CN119183154A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of mobile communication signaling offloading, and in particular to a 5GC signaling offloading system and method. Background Art
[0002] The network monitoring equipment bypasses the signaling transmitted on the signaling link from the mobile communication network by means of mirroring, splitting, etc. By analyzing these signaling, the load of the signaling link, the use of network resources, the quality of signaling interaction, the number and flow of mobile communication users, and other related information are controlled, providing effective support and guarantee for the management and maintenance of the mobile communication network, signaling quality monitoring and analysis, and providing rich data input for the back-end value-added services.
[0003] The number of users in a province ranges from millions to tens of millions. The signaling of so many users is scattered in dozens or hundreds of devices or NFVs in the province, covering N1, N2, N4, N8, N10, N11, N12, N14, N16, N16a, N20, and N38 ports. The acquisition equipment or modules gather them on one or more optical fibers and transmit them to the analysis equipment. However, the processing capacity of an analysis equipment is often limited and it cannot handle so much signaling. At the same time, related signaling may also be distributed in different optical fibers. These are the technical problems that need to be solved in the current 5GC signaling analysis. Summary of the invention
[0004] Purpose of the invention: The present invention provides a 5GC signaling diversion system and method, which can slice and restore massive signaling traffic into small traffic, and at the same time divert traffic in different dimensions according to different uses of signaling.
[0005] Technical solution: The 5GC signaling diversion system described in the present invention includes: multiple signaling splitting optical fibers, a set of signaling diversion equipment cluster devices and multiple sets of signaling analysis equipment; the signaling on the multiple signaling splitting optical fibers is first gathered together, and after passing through the signaling diversion equipment cluster, it is diverted into various small flows as needed and transmitted to multiple signaling analysis devices at the back end.
[0006] Furthermore, the signaling diversion device cluster includes n 5GC signaling diversion devices, and the n 5GC signaling diversion devices are associated and diverted through a global interface association table.
[0007] Furthermore, the 5GC signaling diversion device includes a signaling decoding module, a signaling association module and a signaling diversion module; the signaling decoding module decodes the signaling on multiple signaling splitting optical fibers and extracts useful fields; the signaling association module associates the interfaces belonging to the same network element for diversion; the signaling diversion module sends the corresponding signaling to the destination signaling analysis device.
[0008] Accordingly, a 5GC signaling offloading method includes the following steps:
[0009] Step 1, decoding the signaling on multiple signaling splitting optical fibers and extracting useful fields;
[0010] Step 2: The signaling distribution equipment cluster centrally processes all signaling, associates the interfaces belonging to the same network element, synchronizes the newly learned interface association table to the global interface table each time, and receives and maintains a copy of the global interface table locally for distribution;
[0011] Step 3: query the local global interface table copy through the network element IP in the signaling, determine which type of network element and which logical interface the IP belongs to, obtain the signaling analysis device to which the network element belongs according to the configured diversion rules, and finally send the signaling to the destination signaling analysis device.
[0012] Further, in step 1, the interface includes at least N1 port, N2 port, N4 port, N8 port, N10 port, N11 port, N12 port, N14 port, N16 port, N16a port, N20 port, and N38 port. The AMF guami (Globally Unique AMFIdentifier), AMF N1 port IP (amf_n1_ip) and authentication information (auth_info) are obtained through N1 port signaling. The SMF N11 port IP (smf_n11_ip) and smContextRef and callBackUri are obtained through N11 port signaling. The AMF N12 port IP (amf_n12_ip) and authentication information (auth_info) are obtained through N12 port signaling. The AMF guami and AMF N14 port IP (amf_n14_ip) are obtained through N14 port signaling. The SMF is obtained through N16 port signaling. N16 port IP (smf_n16_ip), smContextRef and callBackUri, obtain SMF N16a port IP (smf_n16a_ip), smContextRef and callBackUri through N16a port signaling, and obtain SMF N38 port IP (smf_n38_ip), smContextRef and callBackUri through N38 port signaling.
[0013] Furthermore, in step 2, AMF uses guami as the association key to associate the amf_n1_ip and amf_n14_ip of the AMF, and uses auth_info as the association key to associate the amf_n1_ip and amf_n12_ip of the AMF, and also adds the amf_n12_ip to the interface association table (diversion table) of the AMF. The key of the table is guami, and the value is the IP of each interface (supporting v4v6 dual stack); SMF uses smContextRef as the association key, and combines callBackUri to add smf_n11_ip, smf_n16_ip, smf_n16a_ip and smf_n38_ip to the interface association table of the SMF. The key of the table is index (virtual SMFID), and the value is the IP of each interface (IPv4IPv6 dual stack).
[0014] Furthermore, when diverting traffic for the location tracing log restoration system, AMF is used as the anchor point to divert the signaling of the N1, N8, N12 and N14 ports of the AMF to a processing unit; when diverting traffic for the user-associated data labeling system, SMF is used as the anchor point to divert the signaling of the N11, N16(a) and N38 ports of the SMF to a processing unit; when the signaling of the same N14 or N38 port needs to be diverted to two AMFs or SMFs at the same time, a copy is made, one for each of the two AMFs or SMFs, to ensure the signaling integrity of the anchor point AMF or SMF.
[0015] Furthermore, in step 3, different network element signaling is diverted to different signaling analysis devices. By analyzing the specific content of the signaling and the correlation between multiple signalings, it is determined whether the signaling belongs to the AMF network element, the SMF network element or other network element, and the correspondence between the IP and the network element type is recorded. Subsequently, it is only necessary to judge the IP header without judging the specific content of the signaling to complete the diversion.
[0016] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: the present invention can restore massive signaling traffic slices into small traffic, and at the same time divert it in different dimensions according to the different uses of the signaling; there is no central node, it is completely distributed, and there is no bottleneck point. No matter how large the traffic is, just add diversion equipment and analysis equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the system structure of the present invention.
[0018] Figure 2 It is a schematic diagram of the cluster architecture of the present invention.
[0019] Figure 3 It is a schematic diagram of the method flow of the present invention.
[0020] Figure 4 It is the AMF anchor graph of the present invention.
[0021] Figure 5 It is the SMF anchor diagram of the present invention. DETAILED DESCRIPTION
[0022] like Figure 1 As shown, a 5GC signaling diversion system includes: multiple signaling splitting optical fibers, a set of signaling diversion equipment cluster devices and multiple sets of signaling analysis equipment; the signaling on the multiple signaling splitting optical fibers is first gathered together, and after passing through the signaling diversion equipment cluster, it is diverted into various small flows as needed and transmitted to multiple back-end signaling analysis devices.
[0023] like Figure 2 As shown, the signaling diversion device cluster includes n 5GC signaling diversion devices, and the n 5GC signaling diversion devices are associated and diverted through the global interface association table. The 5GC signaling diversion device includes a signaling decoding module, a signaling association module, and a signaling diversion module; the signaling decoding module decodes the signaling on multiple signaling splitting optical fibers and extracts useful fields; the signaling association module associates the interfaces belonging to the same network element for diversion; the signaling diversion module sends the corresponding signaling to the destination signaling analysis device.
[0024] like Figure 3 As shown, a 5GC signaling offloading method includes the following steps:
[0025] Step 1, decoding the signaling on multiple signaling splitting optical fibers and extracting useful fields;
[0026] Step 2: The signaling distribution equipment cluster centrally processes all signaling, associates the interfaces belonging to the same network element, synchronizes the newly learned interface association table to the global interface table each time, and receives and maintains a copy of the global interface table locally for distribution;
[0027] Step 3: query the local global interface table copy through the network element IP in the signaling, determine which type of network element and which logical interface the IP belongs to, obtain the signaling analysis device to which the network element belongs according to the configured diversion rules, and finally send the signaling to the destination signaling analysis device.
[0028] In step 1, the interface includes at least N1 port, N2 port, N4 port, N8 port, N10 port, N11 port, N12 port, N14 port, N16 port, N16a port, N20 port, and N38 port. The AMF guami (Globally Unique AMFIdentifier), AMF N1 port IP (amf_n1_ip) and authentication information (auth_info) are obtained through N1 port signaling. The SMF N11 port IP (smf_n11_ip) and smContextRef and callBackUri are obtained through N11 port signaling. The AMF N12 port IP (amf_n12_ip) and authentication information (auth_info) are obtained through N12 port signaling. The AMF guami and AMF N14 port IP (amf_n14_ip) are obtained through N14 port signaling. The SMF is obtained through N16 port signaling. N16 port IP (smf_n16_ip), smContextRef and callBackUri, obtain SMF N16a port IP (smf_n16a_ip), smContextRef and callBackUri through N16a port signaling, and obtain SMF N38 port IP (smf_n38_ip), smContextRef and callBackUri through N38 port signaling.
[0029] In step 2, AMF uses guami as the association key to associate the amf_n1_ip and amf_n14_ip of the AMF, and uses auth_info as the association key to associate the amf_n1_ip and amf_n12_ip of the AMF, and adds amf_n12_ip to the interface association table (diversion table) of the AMF. The key of the table is guami, and the value is the IP of each interface (supporting v4v6 dual stack); SMF uses smContextRef as the association key, and combines callBackUri to add smf_n11_ip, smf_n16_ip, smf_n16a_ip and smf_n38_ip to the interface association table of the SMF. The key of the table is index (virtual SMF ID), and the value is the IP of each interface (IPv4IPv6 dual stack).
[0030] like Figure 4 and Figure 5As shown, when the log restoration system for location tracing is diverted, AMF is used as the anchor point to divert the signaling of N1, N8, N12 and N14 ports of the AMF to a processing unit; when the data tagging system for user association is diverted, SMF is used as the anchor point to divert the signaling of N11, N16(a) and N38 ports of the SMF to a processing unit; when the signaling of the same N14 or N38 port needs to be diverted to two AMFs or SMFs at the same time, a copy is made, one copy for each of the two AMFs or SMFs, to ensure the signaling integrity of the anchor point AMF or SMF.
[0031] In step 3, different network element signaling is diverted to different signaling analysis devices. By analyzing the specific content of the signaling and the correlation between multiple signalings, it is determined whether the signaling belongs to the AMF network element, SMF network element or other network element. The correspondence between the IP and the network element type is recorded. Subsequently, it is only necessary to determine the IP header without determining the specific content of the signaling to complete the diversion.
Claims
1. A 5GC signaling offloading system, characterized in that: include: Multiple signaling splitting optical fibers, a set of signaling distribution equipment cluster equipment and multiple sets of signaling analysis equipment; The signals on multiple signaling splitting optical fibers are first gathered together, and after passing through the signaling diversion device cluster, they are diverted into various small flows as needed and transmitted to multiple back-end signaling analysis devices.
2. The 5GC signaling offloading system according to claim 1, characterized in that: The signaling diversion device cluster includes n 5GC signaling diversion devices, and the n 5GC signaling diversion devices are associated and diverted through the global interface association table.
3. The 5GC signaling offloading system according to claim 1, characterized in that: The 5GC signaling diversion device includes a signaling decoding module, a signaling association module and a signaling diversion module; the signaling decoding module decodes the signaling on multiple signaling splitting optical fibers and extracts useful fields; the signaling association module associates the interfaces belonging to the same network element for diversion; the signaling diversion module sends the corresponding signaling to the destination signaling analysis device.
4. A traffic diversion method based on the 5GC signaling diversion system according to claim 1, characterized in that: The steps include: Step 1, decoding the signaling on multiple signaling splitting optical fibers and extracting useful fields; Step 2: The signaling distribution equipment cluster centrally processes all signaling, associates the interfaces belonging to the same network element, synchronizes the newly learned interface association table to the global interface table each time, and receives and maintains a copy of the global interface table locally for distribution; Step 3: query the local global interface table copy through the network element IP in the signaling, determine which type of network element and which logical interface the IP belongs to, obtain the signaling analysis device to which the network element belongs according to the configured diversion rules, and finally send the signaling to the destination signaling analysis device.
5. The 5GC signaling offloading method according to claim 4, characterized in that: In step 1, the interface includes at least N1 port, N2 port, N4 port, N8 port, N10 port, N11 port, N12 port, N14 port, N16 port, N16a port, N20 port, and N38 port. The AMF guami (Globally Unique AMF Identifier), AMF N1 port IP (amf_n1_ip), and authentication information (auth_info) are obtained through N1 port signaling. The SMF N11 port IP (smf_n11_ip), smContextRef, and callBackUri are obtained through N11 port signaling. The AMF N12 port IP (amf_n12_ip) and authentication information (auth_info) are obtained through N12 port signaling. The AMF guami and AMF N14 port IP (amf_n14_ip) are obtained through N14 port signaling. The SMF is obtained through N16 port signaling. N16 port IP (smf_n16_ip), smContextRef and callBackUri, obtain SMF N16a port IP (smf_n16a_ip), smContextRef and callBackUri through N16a port signaling, and obtain SMF N38 port IP (smf_n38_ip), smContextRef and callBackUri through N38 port signaling.
6. The 5GC signaling offloading method according to claim 4, characterized in that: In step 2, AMF uses guami as the association key to associate the amf_n1_ip and amf_n14_ip of the AMF, and uses auth_info as the association key to associate the amf_n1_ip and amf_n12_ip of the AMF, and adds amf_n12_ip to the interface association table (diversion table) of the AMF. The key of the table is guami, and the value is the IP of each interface (supporting v4v6 dual stack); SMF uses smContextRef as the association key, and combines callBackUri to add smf_n11_ip, smf_n16_ip, smf_n16a_ip and smf_n38_ip to the interface association table of the SMF. The key of the table is index (virtual SMF ID), and the value is the IP of each interface (IPv4IPv6 dual stack).
7. The 5GC signaling offloading method according to claim 4, characterized in that: When diverting traffic for the location tracing log restoration system, AMF is used as the anchor point to divert the signaling of the N1, N8, N12 and N14 ports of the AMF to one processing unit; when diverting traffic for the user-associated data tagging system, SMF is used as the anchor point to divert the signaling of the N11, N16(a) and N38 ports of the SMF to one processing unit; when the signaling of the same N14 or N38 port needs to be diverted to two AMFs or SMFs at the same time, a copy is made, one for each AMF or SMF, to ensure the signaling integrity of the anchor point AMF or SMF.
8. The 5GC signaling offloading method according to claim 4, characterized in that: In step 3, different network element signaling is diverted to different signaling analysis devices. By analyzing the specific content of the signaling and the correlation between multiple signalings, it is determined whether the signaling belongs to the AMF network element, SMF network element or other network element. The correspondence between the IP and the network element type is recorded. Subsequently, it is only necessary to determine the IP header without determining the specific content of the signaling to complete the diversion.