CN114079912B - Traffic information reporting method, base station and system - Google Patents

Traffic information reporting method, base station and system Download PDF

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Publication number
CN114079912B
CN114079912B CN202010773762.0A CN202010773762A CN114079912B CN 114079912 B CN114079912 B CN 114079912B CN 202010773762 A CN202010773762 A CN 202010773762A CN 114079912 B CN114079912 B CN 114079912B
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station
source
target
user plane
site
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CN114079912A (en
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肖阳
周丽
谷勇
郭兰柯
蒋帅
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China Mobile Communications Group Co Ltd
China Mobile Group Chongqing Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Group Chongqing Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention relates to the technical field of mobile communication, and discloses a traffic information reporting method, a base station and a system, wherein the method comprises the following steps: the source main station initiates a switching request to the target station; the source master station receives the UE user plane flow information sent by the source slave station and sends the UE user plane flow information to the target station; the target site initiates a path switching request to core network equipment according to the switching request, and triggers path switching; the target site receives a path switching request confirmation message sent by the core network equipment and notifies the source master site to release the user context of the UE; and the target station reports the UE user plane flow information to the core network equipment. Through the mode, the embodiment of the invention realizes accurate report of the user flow information.

Description

Traffic information reporting method, base station and system
Technical Field
The embodiment of the invention relates to the technical field of mobile communication, in particular to a traffic information reporting method, a base station and equipment.
Background
In the process of 5G communication network construction, considering evolution of an operator network and minimizing excessive large-scale investment, in the early stage of network construction, a network deployment mode of the 5G network generally adopts a NSA (non-stand alone networking) mode. In this mode, the access network is based on a dual connectivity technique such that the 4G base station relies on the 5G base station, or the 5G base station relies on the 4G base station to provide the control channel. The NSA networking mode uses EPC (Evolved Packet Core, evolved packet core network) +lte (Long Term Evolution, long term evolution access network) +nr (New Radio, new air interface) in a relatively large number of ways, that is, a non-independent networking mode mainly comprising a 4G core network and a 4G Radio access network, and uses a 4G LTE site as an anchor point to provide 5G services. In this case a 5G User terminal (UE) will connect both 4G and 5G networks, the 4G network being typically used for carrying control plane information and the 5G network being typically used for carrying User plane information.
How to accurately obtain the 5G usage of the user is a very important topic in order to better support marketing and construction plans. In the current NSA networking mode, the 4G LTE anchor station can report 5G traffic information of the user to an MME (Mobility Management Entity ), and the MME transmits the 5G traffic information to a PGW (PDN GateWay, packet data GateWay) to generate a ticket for subsequent statistical analysis.
In carrying out embodiments of the present invention, the inventors found that: in a scene that the UE is switched between LTE stations, after a target LTE station initiates path switching to an MME, traffic information of the UE, which is reported to the MME by a source LTE station, is ignored by the MME, so that the problem of inaccurate traffic information statistics is caused.
Disclosure of Invention
In view of the above problems, embodiments of the present invention provide a method, an apparatus, and a system for reporting traffic information, which are used to solve the problem in the prior art that traffic information statistics is inaccurate.
According to an aspect of the embodiment of the present invention, there is provided a traffic information reporting method, including:
the source main station initiates a switching request to the target station;
the source master station receives the UE user plane flow information sent by the source slave station and sends the UE user plane flow information to the target station;
The target site initiates a path switching request to core network equipment according to the switching request, and triggers path switching;
the target site receives a path switching request confirmation message sent by the core network equipment and notifies the source master site to release the user context of the UE;
and the target station reports the UE user plane flow information to the core network equipment.
In an optional manner, the source master station receiving UE user plane traffic information sent by a source slave station includes:
the source master station receives UE user plane flow information sent by a source slave station through signaling Data Usage report Transfer;
the sending the UE user plane traffic information to the target site includes:
the source master station sends the UE user plane traffic information to the target station through signaling Data Usage report Transfer.
In an optional manner, after the source master station initiates a handover request to the target station, the method includes:
after receiving the switching request, the target site reserves resources for the UE and sends a switching request confirmation message to the source master site;
after receiving the switching request confirmation message, the source master station sends a resource release request to a source slave station;
And after the source slave station receives the resource release request, releasing the resources related to the UE, stopping providing user data to the UE, and sending a resource release request confirmation message to the source master station.
In an alternative manner, the sending the resource release request acknowledgement message to the source master station includes:
the source main station sends a connection reconfiguration message to the UE and triggers the UE to apply the wireless configuration of the target station;
and the UE releases the wireless configuration of the source station and synchronizes with the target station.
In an optional manner, after the UE user plane traffic information is sent to the target site, the method includes:
and the source slave station sends a state transfer message to the target station through the source master station, and sends the UE data transfer condition to the target station.
In an alternative manner, the sending the UE data transfer case to the target station includes:
the source slave station forwards the UE related data to a target station through the source master station.
In an alternative manner, the notifying the source master site of releasing the user context of the UE includes:
The source master station informs the source slave station to release the UE user context related wireless resources and control plane resources.
According to another aspect of an embodiment of the present invention, there is provided a base station including:
a switching request module for initiating a switching request to a target site;
the first receiving module is used for receiving the UE user plane flow information sent by the source slave station;
a sending module, configured to send the UE user plane traffic information to the target site;
and the releasing module is used for receiving the user context notification of the UE released by the target site and releasing the user context of the UE.
According to another aspect of an embodiment of the present invention, there is provided a base station including:
the request receiving module is used for receiving a switching request initiated by a source main station;
the second receiving module is used for receiving the UE user plane flow information sent by the source main station;
the path switching module is used for initiating a path switching request to core network equipment according to the switching request and triggering path switching;
a notification module, configured to receive a path switching request acknowledgement message sent by the core network device, and notify the source home site to release a user context of the UE;
And the reporting module is used for reporting the UE user plane flow information to the core network equipment.
According to another aspect of the embodiment of the present invention, there is provided a traffic information reporting system, including:
the source main station is used for initiating a switching request to the target station; receiving UE user plane flow information sent by a source slave station, and sending the UE user plane flow information to the target station; receiving a user context notification of the target site releasing the UE, and releasing the user context of the UE;
the target site is used for receiving the switching request initiated by the source main site; receiving the UE user plane flow information sent by the source main station; initiating a path switching request to core network equipment according to the switching request, and triggering path switching; receiving a path switching request confirmation message sent by the core network equipment, and notifying the source master station point to release the user context of the UE; and reporting the UE user plane flow information to the core network equipment.
According to the traffic information reporting method provided by the embodiment of the invention, when the UE is switched from the source master station to the target station, the source master station sends the UE user plane traffic information received from the source slave station to the target station, and then the target station reports the UE user plane traffic information to the core network equipment. I.e. the source master site does not report the data traffic directly to the core network device, but via the target site to the core network device. Therefore, the problem of traffic statistics errors caused by the fact that the core network does not count the UE traffic information in the traffic report message when the core network equipment firstly receives the path switching request sent by the target site and then receives the traffic report message of the source main site is avoided, and accurate report of the user traffic information is realized.
The foregoing description is only an overview of the technical solutions of the embodiments of the present invention, and may be implemented according to the content of the specification, so that the technical means of the embodiments of the present invention can be more clearly understood, and the following specific embodiments of the present invention are given for clarity and understanding.
Drawings
The drawings are only for purposes of illustrating embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a flow chart illustrating a flow information reporting method according to an embodiment of the present invention;
fig. 2 is a signaling flow chart of a preferred implementation of the traffic information reporting method provided by the embodiment of the present invention;
fig. 3 shows a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 4 shows a schematic structural diagram of another base station according to an embodiment of the present invention;
fig. 5 shows a schematic structural diagram of a traffic information reporting system according to an embodiment of the present invention.
Fig. 6 shows a schematic structural diagram of a traffic information reporting device according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of another traffic information reporting device according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein.
The embodiment of the invention is mainly applied to a 5G NSA networking scene, and UE is simultaneously connected with a 4G LTE base station (called eNB for short, eNodeB for short) and a 5G NR base station (called gNB for short, gNodeB for short). When the UE is switched from a source master station (S-MN, source Master Node, namely a 4G LTE base station connected with the UE before switching) to a Target station (T-eNB, target eNB, namely the 4G LTE base station connected with the UE after switching), the 5G flow information of the UE before switching can be accurately reported and counted by the method provided by the embodiment of the invention.
Fig. 1 shows a flowchart of a flow information reporting method provided by an embodiment of the present invention. The traffic information reporting method provided by the embodiment of the invention is usually implemented in a mobile communication network, and is generally executed specifically by a base station and core network equipment. As shown in fig. 1, the method comprises the steps of:
Step 110: the source master station initiates a handoff request to the target station.
When the UE moves between stations, the source master station is triggered to initiate a switching flow.
Preferably, step 110 may be followed by steps 111-113:
step 111: and after receiving the switching request, the target site reserves resources for the UE and sends a switching request confirmation message to the source master site.
Step 112: and after receiving the switching request confirmation message, the source master station sends a resource release request to the source slave station.
The source slave station (S-SN, source Secondary Node) is a 5G NR base station to which the UE is connected prior to handover. As described above, in NSA networking scenario, the UE connects the source master S-MN and the source slave S-SN simultaneously before handover is completed.
Step 113: and after the source slave station receives the resource release request, releasing the resources related to the UE, stopping providing user data to the UE, and sending a resource release request confirmation message to the source master station.
Preferably, step 113 may be followed by a step of UE radio connection reconfiguration:
step 114: and the source main station sends a connection reconfiguration message to the UE and triggers the UE to apply the wireless configuration of the target station.
Step 115: and the UE releases the wireless configuration of the source station and synchronizes with the target station.
Step 120: the source master station receives the UE user plane flow information sent by the source slave station and sends the UE user plane flow information to the target station;
specifically, step 120 includes:
step 121: the source master station receives UE user plane flow information sent by a source slave station through signaling Data Usage report Transfer;
step 122: the source master station sends the UE user plane traffic information to the target station through signaling Data Usage report Transfer.
In order to avoid the problem that the statistics of the traffic information may occur when the source master station directly reports the UE traffic information to the core network device, in this step, the source master station sends the UE user plane traffic information sent by the source slave station to the target station through the signaling Data Usage report Transfer (user usage forwarding) newly added in this embodiment, and then the target station sends the UE user plane traffic information to the core network device.
Optionally, step 122 may further include:
step 123: and the source slave station sends a state transfer message to the target station through the source master station, and sends the UE data transfer condition to the target station.
Optionally, if the data of the UE needs to be forwarded, step 123 may further include:
step 124: the source slave station forwards the UE related data to a target station through the source master station.
And the data transmission state of the UE on the source station and related data are forwarded to the target station through steps 123 and 124, and after the switching is completed, the target station continues data transmission, so that the loss of the related data of the UE after the switching of the LTE station is avoided, and the user service experience is facilitated.
Step 130: and the target site initiates a path switching request to core network equipment according to the switching request, and triggers path switching.
Specifically, the core network device is an MME.
Optionally, step 130 may be followed by further including:
step 131: the MME and SGW (Serving Gateway) carry out bearing information modification and accept the address of the target site.
Optionally, to assist the renewing function (reordering function) of the target station T-eNB, the SGW may send an end-marker packet (End Marker Packet) on the data transmission path of the source station, and step 131 may further include:
step 132: and the source slave station forwards the end marking data packet sent by the SGW to the target station through the source master station.
Step 133: the SGW transmits downlink data to the target station.
Steps 131, 132 and 133 enable the SGW to switch the data transmission path in time, and establish a new transmission path with the target station, so as to ensure the reliability of the UE data transmission after the switching.
Step 140: and the target site receives the path switching request confirmation message sent by the core network equipment and notifies the source master site to release the user context of the UE.
Preferably, step 140 further comprises, after:
step 141: the source master station informs the source slave station to release the UE user context related wireless resources and control plane resources.
Step 150: and the target station reports the UE user plane flow information to the core network equipment.
According to the traffic information reporting method provided by the embodiment of the invention, when the UE is switched from the source master station to the target station, the source master station sends the UE user plane traffic information received from the source slave station to the target station, and then the target station reports the UE user plane traffic information to the core network equipment. I.e. the source master site does not report the data traffic directly to the core network device, but via the target site to the core network device. Therefore, the problem of traffic statistics errors caused by the fact that the core network does not count the UE traffic information in the traffic report message when the core network equipment firstly receives the path switching request sent by the target site and then receives the traffic report message of the source main site is avoided, and accurate report of the user traffic information is realized.
Fig. 2 is a signaling flow chart of a preferred implementation of the traffic information reporting method provided by the embodiment of the present invention. As shown in fig. 2, the flow information reporting method specifically includes:
step 201: the source home site S-MN sends a Handover Request message to the target site T-eNB to initiate the X2 Handover preparation procedure.
Step 202: the target site T-eNB sends Handover Request Acknowledge (handover request confirm) message to the source site S-MN, acknowledges receipt of the handover request, reserves resources for the UE, and provides a forwarding address to the source site S-MN.
Step 203a: after receiving the Handover Request Acknowledge message sent by the target station T-eNB, the source master station S-MN sends SgNB Release Request (SgNB resource release request) to the source slave station S-SN, requesting the source slave station S-SN to release the SgNB resources, that is, the radio resources allocated to the UE on the source slave station.
Step 203b: after the source slave station S-SN receives the SgNB Release Request message sent by the source master station S-MN, the radio resources related to the UE are released, the user data is stopped being provided to the UE, and a SgNB Release Request Acknowledge (SgNB resource release request acknowledgement) message is sent to the source master station S-MN.
Step 204: the source home site S-MN sends RRC Connection Reconfiguration (RRC connection reconfiguration) message to the UE triggering the UE to apply a new radio configuration, i.e. the radio configuration of the target site T-eNB.
Step 205: after receiving RRC Connection Reconfiguration the UE releases the SCG (Secondary Cell Group ) configuration, i.e. the radio configuration related to the source station, and performs a random access procedure Random Access Procedure with the target station T-eNB to synchronize with the target station T-eNB. Such as timing or synchronization of uplink transmission resources. The RRC is Radio Resource Control, radio resource control.
Step 206: the UE sends RRC Connection Reconfiguration Acknowledge a message to the target site T-eNB.
Step 207a: the source slave S-SN sends Data Usage report Transfer (user usage forwarding) message to the source master S-MN, which contains the traffic information of the UE.
Step 207b: the source home site S-MN sends Data Usage report Transfer (user usage forwarding) message to the target site T-eNB, which contains the traffic information of the UE.
In order to avoid the problem that the source master station S-MN directly reports the UE traffic information to the MME, in step 207a, the source slave station S-SN sends the UE traffic information to the source master station S-MN through the signaling Data Usage report Transfer newly added in the embodiment; in step 207b, the source home site S-MN sends the traffic information of the UE to the target site T-eNB through the signaling Data Usage report Transfer added in this embodiment, and then the target site T-eNB sends the traffic information to the MME.
Step 208a: the source slave S-SN sends SN Status Transfer (state transfer) message to the source master S-MN.
Step 208b: the source home site S-MN sends SN Status Transfer (state transfer) message to the target site T-eNB, which sends the UE data transfer case to the target site T-eNB.
The SN Status Transfer message may specifically include a PDCP sequence number (PDCP sequence number), so that the target T-eNB knows the data transfer condition of the UE at the source station, and thus continues to transmit data after the handover synchronization. The PDCP is Packet Data Convergence Protocol, a packet data convergence protocol.
Step 209: if there is data of the UE to be forwarded (e.g., the SGW has downstream data related to the UE to be forwarded), the source slave station S-SN forwards the UE-related data to the target station T-eNB through the source master station S-MN.
Steps 208a, 208b and 209 are optional steps, through which the data transmission state of the UE on the source site and related data are forwarded to the target site T-eNB, and after the handover is completed, the target site T-eNB continues data transmission, so that loss of related data of the UE after the LTE site handover is avoided, and user service experience is facilitated.
Step 210: the target site T-eNB sends Path Switch Request (path switch request) message to the MME, triggering S1 the path switch procedure.
Step 211: the MME and SGW make bearer information modification (Bearer Modification). To accept the address of the target site T-eNB and/or TEID tunnel endpoint identification (Tunnel Endpoint Identifier).
Step 212: to assist the renewing function (reordering function) of the target site T-eNB, the SGW may send end-marker packets (End Marker Packet) on the data transmission path of the source site, through which the source slave site T-eNB forwards the end-marker packets sent by the SGW to the target site T-eNB.
Step 213: the SGW sends downlink data to the target site T-eNB. Indicating the establishment of a new path.
Steps 212 and 213 are optional steps, which enable the SGW to switch the data transmission path in time, and establish a new transmission path with the target station, so as to ensure the reliability of the UE data transmission after switching.
Step 214: the MME sends Path Switch Request Acknowledge (path switch request confirm) message to the target site T-eNB.
Specifically, the message may include: the address of the SGW and the UE User Plane (User Plane) uplink TEID.
Step 215: the target site T-eNB sends UE Context Release (context release) message to the source site S-MN informing the source site S-MN to release the UE' S context.
Step 216: the source master site S-MN sends UE Context Release (context release) message to the source slave site S-SN informing the source slave site S-SN to release the UE context-related radio resources and control plane (C-plane) resources.
Step 217: the target site T-eNB sends Secondary RAT Data Usage report (slave RAT usage reporting) message to the MME, and reports the UE traffic information sent by the source master site S-MN in step 207b to the MME. The RAT is Radio Access Type, i.e. radio access type.
In the traffic information reporting method provided by a preferred implementation manner of the embodiment of the present invention, when a UE is switched from a source home site S-MN to a target site T-eNB, the source home site S-MN sends UE user plane traffic information received from a source slave site S-SN to the target site, and then the target site reports the UE user plane traffic information to a core network device MME. I.e. the source site S-MN does not report the data traffic directly to the MME, but to the MME via the target site T-eNB. Therefore, the problem of traffic statistics errors caused by the fact that the core network does not count the UE traffic information in the traffic report message when the MME receives the path switching request sent by the target site T-eNB first and then receives the traffic report message of the source main site is avoided, and accurate report of the user traffic information is realized.
Fig. 3 shows a schematic structural diagram of a base station according to an embodiment of the present invention. The base station provided by the embodiment of the invention is usually a source main station when the UE is switched between the 4G LTE base stations, namely the 4G LTE base station connected with the UE before switching. As shown in fig. 3, the base station 300 includes:
a handover request module 310, configured to initiate a handover request to a target station;
a first receiving module 320, configured to receive UE user plane traffic information sent by a source slave station;
a sending module 330, configured to send the UE user plane traffic information to the target station;
and a releasing module 340, configured to receive a user context notification that the target site releases the UE, and release the user context of the UE.
Preferably, the first receiving module 320 includes:
the first receiving unit 321 is configured to receive UE user plane traffic information sent by a source slave station through signaling Data Usage report Transfer.
The transmitting module 330 includes:
and the sending unit 331 is configured to send the UE user plane traffic information to the target station through signaling Data Usage report Transfer.
Preferably, the base station 300 further includes:
and the release request sending module 350 is configured to send a resource release request to the source slave station after receiving the handover request acknowledgement message sent by the target station, and trigger the source slave station to release the UE related resource.
Preferably, the base station 300 further includes:
and the connection reconfiguration module 360 is configured to send a connection reconfiguration message to the UE, and trigger the UE to apply the radio configuration of the target station.
In an alternative embodiment, the base station 300 further includes:
a delivery status sending module 370, configured to send a status delivery message to a target station, and send the UE data delivery situation received from a source slave station to the target station.
Optionally, the base station 300 further includes:
a data forwarding module 380, configured to forward the UE related data received from the source slave station to the target station.
The data transmission state of the UE on the source site and the related data are forwarded to the target site through the transmission state sending module 370 and the data forwarding module 380, and after the switching is completed, the target site continues data transmission, so that the loss of the related data of the UE after the LTE site is switched is avoided, and the user service experience is facilitated.
Preferably, the release module 340 includes:
and a releasing unit 341, configured to notify the source to release the UE user context related radio resource and control plane resource from the station after receiving the user context notification that the target station releases the UE.
In the base station 300 provided by the embodiment of the present invention, when the UE is switched from the base station to the target station, the base station sends the UE user plane traffic information received from the source slave station to the target station, and then the target station reports the UE user plane traffic information to the core network device. That is, the base station serving as the handover source station does not report the data traffic directly to the core network device, but reports the data traffic to the core network device through the target station. Therefore, the problem of traffic statistics errors caused by the fact that the core network does not count the UE traffic information in the traffic report message when the core network equipment firstly receives the path switching request sent by the target site and then receives the traffic report message of the source main site is avoided, and accurate report of the user traffic information is realized.
Fig. 4 shows a schematic structural diagram of another base station according to an embodiment of the present invention. The base station provided by the embodiment of the invention is a target station when the UE is switched between the 4G LTE base stations, namely the 4G LTE base station connected with the UE after the switching. As shown in fig. 4, the base station 400 includes:
a request receiving module 410, configured to receive a handover request initiated by a source primary station;
a second receiving module 420, configured to receive the UE user plane traffic information sent by the source primary site;
A path switching module 430, configured to initiate a path switching request to a core network device according to the switching request, and trigger path switching;
a notification module 440, configured to receive a path switch request acknowledgement message sent by the core network device, and notify the source home site to release the user context of the UE;
and the reporting module 450 is configured to report the UE user plane traffic information to the core network device.
Preferably, the second receiving module 420 includes:
the second receiving unit 421 is configured to receive UE user plane traffic information sent by the source master station through signaling Data Usage report Transfer.
Preferably, the base station 400 further includes:
and the handover request confirmation module 460 is configured to reserve resources for the UE after receiving the handover request, and send a handover request confirmation message to the source master station.
In an alternative embodiment, the base station 400 further includes:
and a delivery status receiving module 470, configured to receive a status delivery message sent by the source primary station, where the status delivery message includes the UE data delivery situation.
Optionally, the base station 400 further includes:
a data receiving module 480, configured to receive the UE-related data sent by the source primary station.
The data transmission state of the UE on the source site and the related data are received from the source site through the transmission state receiving module 470 and the data receiving module 480, and after the handover is completed, the base station 400 continues data transmission, so that the loss of the related data of the UE after the LTE site is switched is avoided, and the user service experience is facilitated.
In another base station 400 provided in the embodiment of the present invention, when a UE is switched from a source master station to the base station, the base station receives UE user plane traffic information from the source master station, and then the base station reports the UE user plane traffic information to a core network device. I.e. the source host site does not report data traffic directly to the core network device, but via the base station 400 as the target site. Therefore, the problem of traffic statistics errors caused by the fact that the core network does not count the UE traffic information in the traffic report message when the core network equipment firstly receives the path switching request sent by the target site and then receives the traffic report message of the source main site is avoided, and accurate report of the user traffic information is realized.
Fig. 5 shows a schematic structural diagram of a traffic information reporting system according to an embodiment of the present invention. The traffic information reporting system provided by the embodiment of the invention is generally applied to a scene that the UE is switched between 4G LTE base stations in NSA networking mode. As shown in fig. 5, the traffic information reporting system 500 includes:
A source master site 510 for initiating a handover request to a target site; receiving UE user plane flow information sent by a source slave station, and sending the UE user plane flow information to the target station; receiving a user context notification of the target site releasing the UE, and releasing the user context of the UE;
a target site 520, configured to receive a handover request initiated by the source primary site; receiving the UE user plane flow information sent by the source main station; initiating a path switching request to core network equipment according to the switching request, and triggering path switching; receiving a path switching request confirmation message sent by the core network equipment, and notifying the source master station point to release the user context of the UE; and reporting the UE user plane flow information to the core network equipment.
The specific structure of the source master station 510 is identical to that of one base station 300 shown in fig. 3, and the specific structure of the target station 520 is identical to that of another base station 400 shown in fig. 4, and will not be described herein.
Preferably, the traffic information reporting system 500 further includes:
a source slave station 530, configured to send the UE user plane traffic information to the source master station 510; the UE connects the source master station 510 and source slave station 530 simultaneously.
Specifically, the source slave station 530 includes:
a traffic information sending module 531, configured to send the UE user plane traffic information to the source master station 510;
preferably, the traffic information transmitting module 531 includes:
a traffic information sending unit 5311, configured to send UE user plane traffic information to the source master station 510 through signaling Data Usage report Transfer.
Preferably, the source slave station 530 includes:
the resource release module 532 is configured to release resources related to the UE after receiving the resource release request from the source master site 510, stop providing user data to the UE, and send a resource release request acknowledgement message to the source master site.
In an alternative embodiment, the source slave station 530 includes:
a state transfer message sending module 533, configured to send a state transfer message to a target station 520 through the source master station 510, and send the UE data transfer situation to the target station 520.
Optionally, the source slave station 530 includes:
a data sending module 534, configured to forward the UE-related data to the target site 520 through the source home site 510.
The state transfer message sending module 533 and the data sending module 534 forward the data transfer state of the UE on the source site and the related data to the target site, and after the handover is completed, the target site continues data transmission, so that the loss of the related data of the UE after the LTE site is switched is avoided, and the user service experience is facilitated.
In the traffic information reporting system 500 provided in the embodiment of the present invention, when a UE is switched from a source home site 510 to a target site 520, the source home site sends UE user plane traffic information received from a source home site 530 to the target site, and then the target site reports the UE user plane traffic information to a core network device. I.e. the source master site does not report the data traffic directly to the core network device, but via the target site to the core network device. Therefore, the problem of traffic statistics errors caused by the fact that the core network does not count the UE traffic information in the traffic report message when the core network equipment firstly receives the path switching request sent by the target site and then receives the traffic report message of the source main site is avoided, and accurate report of the user traffic information is realized.
Fig. 6 shows a schematic structural diagram of a traffic information reporting device according to an embodiment of the present invention. The traffic information reporting device provided by the embodiment of the invention can be a source main station when the UE is switched between the 4G LTE base stations. The specific embodiment of the invention does not limit the specific implementation of the flow information reporting device.
As shown in fig. 6, the traffic information reporting apparatus may include: a processor 602, a communication interface (Communications Interface), a memory 606, and a communication bus 608.
Wherein: processor 602, communication interface 604, and memory 606 perform communication with each other via communication bus 608. Communication interface 604 is used to communicate with network elements of other devices, such as clients or other servers. The processor 602 is configured to execute the program 610, and may specifically execute relevant steps in the foregoing flow information reporting method embodiment.
In particular, program 610 may include program code including computer-executable instructions.
The processor 602 may be a central processing unit CPU or a specific integrated circuit ASIC (Application Specific Integrated Circuit) or one or more integrated circuits configured to implement embodiments of the present invention. The one or more processors included in the traffic information reporting device may be the same type of processor, such as one or more CPUs; but may also be different types of processors such as one or more CPUs and one or more ASICs.
A memory 606 for storing a program 610. The memory 606 may comprise high-speed RAM memory or may further comprise non-volatile memory (non-volatile memory), such as at least one disk memory.
The program 610 may be specifically invoked by the processor 602 to cause the traffic information reporting device to:
Initiating a switching request to a target site;
receiving UE user plane flow information sent by a source slave station, and sending the UE user plane flow information to the target station;
and receiving a user context notification of the target site for releasing the UE, and releasing the user context of the UE.
Preferably, the UE user plane traffic information sent by the receiving source from the station includes:
the receiving source sends UE user plane traffic information from the station through signaling Data Usage report Transfer.
Preferably, the sending UE user plane traffic information to the target station includes:
and transmitting the UE user plane flow information to the target station through signaling Data Usage report Transfer.
Preferably, the step of sending a handover request to the target station further includes:
and after receiving the switching request confirmation message sent by the target site, sending a resource release request to the source slave site, and triggering the source slave site to release the resources related to the UE.
Preferably, the trigger source further comprises, after releasing the UE-related resources from the station:
and sending a connection reconfiguration message to the UE, and triggering the UE to apply the wireless configuration of the target site.
Optionally, after the sending the UE user plane traffic information to the target site, the method further includes:
And sending a state transfer message to a target station, and sending the UE data transfer condition received from a source slave station to the target station.
Optionally, after the UE data transfer case received from the source slave station is sent to the target station, the method further includes:
and forwarding the UE related data received from the source slave station to the target station.
The data transmission state of the UE on the source station and the related data are forwarded to the target station, and after the switching is completed, the target station continues data transmission, so that the loss of the related data of the UE after the switching of the LTE station is avoided, and the user service experience is facilitated.
Preferably, the releasing the user context of the UE includes:
and after receiving the user context notification of the target site releasing the UE, notifying the source to release the wireless resource and the control plane resource related to the user context of the UE from the site.
When the UE is switched from the traffic information reporting device serving as the source master station to the target station, the traffic information reporting device sends the UE user plane traffic information received from the source slave station to the target station, and then the target station reports the UE user plane traffic information to the core network device. The traffic information reporting device serving as the source main station does not report the data traffic to the core network device directly, but reports the data traffic to the core network device through the target station. Therefore, the problem of traffic statistics errors caused by the fact that the core network does not count the UE traffic information in the traffic report message when the core network equipment firstly receives the path switching request sent by the target site and then receives the traffic report message of the source main site is avoided, and accurate report of the user traffic information is realized.
Fig. 7 is a schematic structural diagram of another traffic information reporting device according to an embodiment of the present invention. The traffic information reporting device provided by the embodiment of the invention can be a target station when the UE is switched between the 4G LTE base stations. The specific embodiment of the invention does not limit the specific implementation of the flow information reporting device.
As shown in fig. 7, the traffic information reporting apparatus may include: a processor 702, a communication interface (Communications Interface), a memory 706, and a communication bus 708.
Wherein: processor 702, communication interface 704, and memory 706 perform communication with each other via a communication bus 708. A communication interface 704 for communicating with network elements of other devices, such as clients or other servers. The processor 702 is configured to execute the program 710, and may specifically execute relevant steps in the foregoing flow information reporting method embodiment.
In particular, program 710 may include program code including computer-executable instructions.
The processor 702 may be a Central Processing Unit (CPU), or a specific integrated circuit ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement embodiments of the present invention. The one or more processors included in the traffic information reporting device may be the same type of processor, such as one or more CPUs; but may also be different types of processors such as one or more CPUs and one or more ASICs.
Memory 706 for storing programs 710. The memory 706 may comprise high-speed RAM memory or may further comprise non-volatile memory (non-volatile memory), such as at least one disk memory.
The program 710 may be specifically invoked by the processor 702 to cause the traffic information reporting device to:
receiving a switching request initiated by a source main station;
receiving the UE user plane flow information sent by the source main station;
initiating a path switching request to core network equipment according to the switching request, and triggering path switching;
receiving a path switching request confirmation message sent by the core network equipment, and notifying the source master station point to release the user context of the UE;
and reporting the UE user plane flow information to the core network equipment.
Preferably, the receiving the UE user plane traffic information sent by the source primary site includes:
and receiving the UE user plane flow information sent by the source master station through signaling Data Usage report Transfer.
Preferably, the receiving the handover request initiated by the source primary station further includes:
after receiving the switching request, reserving resources for the UE, and sending a switching request confirmation message to the source master station.
Optionally, after receiving the UE user plane traffic information sent by the source primary site, the method further includes:
and receiving a state transfer message sent by the source main station, wherein the state transfer message comprises the UE data transfer condition.
Optionally, the receiving the state transfer message sent by the source master station further includes:
and receiving the UE related data sent by the source main station.
Through the steps, the data transmission state and related data of the UE on the source station are received from the source station, and after the switching is completed, the target station continues data transmission, so that the loss of the related data of the UE after the switching of the LTE station is avoided, and the user service experience is facilitated.
In another traffic information reporting device provided by the embodiment of the present invention, when a UE is switched from a source home site to the traffic information reporting device serving as a target site, the traffic information reporting device receives UE user plane traffic information from the source home site, and then the traffic information reporting device reports the UE user plane traffic information to a core network device. That is, the source master station does not report the data traffic directly to the core network device, but reports the data traffic to the core network device through the traffic information reporting device serving as the target station. Therefore, the problem of traffic statistics errors caused by the fact that the core network does not count the UE traffic information in the traffic report message when the core network equipment firstly receives the path switching request sent by the target site and then receives the traffic report message of the source main site is avoided, and accurate report of the user traffic information is realized.
The embodiment of the invention provides a computer readable storage medium, which stores at least one executable instruction, and when the executable instruction runs on the traffic information reporting device/apparatus, the traffic information reporting device/apparatus executes relevant steps in the traffic information reporting method in any method embodiment.
In a preferred implementation manner of this embodiment, the executable instructions may specifically be configured to cause the traffic information reporting apparatus/device to perform the following operations:
initiating a switching request to a target site;
receiving UE user plane flow information sent by a source slave station, and sending the UE user plane flow information to the target station;
and receiving a user context notification of the target site for releasing the UE, and releasing the user context of the UE.
Preferably, the UE user plane traffic information sent by the receiving source from the station includes:
the receiving source sends UE user plane traffic information from the station through signaling Data Usage report Transfer.
Preferably, the sending UE user plane traffic information to the target station includes:
and transmitting the UE user plane flow information to the target station through signaling Data Usage report Transfer.
Preferably, the step of sending a handover request to the target station further includes:
and after receiving the switching request confirmation message sent by the target site, sending a resource release request to the source slave site, and triggering the source slave site to release the resources related to the UE.
Preferably, the trigger source further comprises, after releasing the UE-related resources from the station:
and sending a connection reconfiguration message to the UE, and triggering the UE to apply the wireless configuration of the target site.
Optionally, after the sending the UE user plane traffic information to the target site, the method further includes:
and sending a state transfer message to a target station, and sending the UE data transfer condition received from a source slave station to the target station.
Optionally, after the UE data transfer case received from the source slave station is sent to the target station, the method further includes:
and forwarding the UE related data received from the source slave station to the target station.
The data transmission state of the UE on the source station and the related data are forwarded to the target station, and after the switching is completed, the target station continues data transmission, so that the loss of the related data of the UE after the switching of the LTE station is avoided, and the user service experience is facilitated.
Preferably, the releasing the user context of the UE includes:
and after receiving the user context notification of the target site releasing the UE, notifying the source to release the wireless resource and the control plane resource related to the user context of the UE from the site.
In another preferred implementation manner of this embodiment, the executable instructions may specifically be configured to cause the traffic information reporting apparatus/device to perform the following operations:
receiving a switching request initiated by a source main station;
receiving the UE user plane flow information sent by the source main station;
initiating a path switching request to core network equipment according to the switching request, and triggering path switching;
receiving a path switching request confirmation message sent by the core network equipment, and notifying the source master station point to release the user context of the UE;
and reporting the UE user plane flow information to the core network equipment.
Preferably, the receiving the UE user plane traffic information sent by the source primary site includes:
and receiving the UE user plane flow information sent by the source master station through signaling Data Usage report Transfer.
Preferably, the receiving the handover request initiated by the source primary station further includes:
after receiving the switching request, reserving resources for the UE, and sending a switching request confirmation message to the source master station.
Optionally, after receiving the UE user plane traffic information sent by the source primary site, the method further includes:
and receiving a state transfer message sent by the source main station, wherein the state transfer message comprises the UE data transfer condition.
Optionally, the receiving the state transfer message sent by the source master station further includes:
and receiving the UE related data sent by the source main station.
Through the steps, the data transmission state and related data of the UE on the source station are received from the source station, and after the switching is completed, the target station continues data transmission, so that the loss of the related data of the UE after the switching of the LTE station is avoided, and the user service experience is facilitated.
In summary, in the computer readable storage medium provided in the embodiment of the present invention, when the UE is switched from the source home site to the target site, the source home site sends UE user plane traffic information received from the source home site to the target site, and then the target site reports the UE user plane traffic information to the core network device. I.e. the source master site does not report the data traffic directly to the core network device, but via the target site to the core network device. Therefore, the problem of traffic statistics errors caused by the fact that the core network does not count the UE traffic information in the traffic report message when the core network equipment firstly receives the path switching request sent by the target site and then receives the traffic report message of the source main site is avoided, and accurate report of the user traffic information is realized.
The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general-purpose systems may also be used with the teachings herein. The required structure for a construction of such a system is apparent from the description above. In addition, embodiments of the present invention are not directed to any particular programming language. It will be appreciated that the teachings of the present invention described herein may be implemented in a variety of programming languages, and the above description of specific languages is provided for disclosure of enablement and best mode of the present invention.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the above description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be construed as reflecting the intention that: i.e., the claimed invention requires more features than are expressly recited in each claim.
Those skilled in the art will appreciate that the modules in the apparatus of the embodiments may be adaptively changed and disposed in one or more apparatuses different from the embodiments. The modules or units or components of the embodiments may be combined into one module or unit or component, and they may be divided into a plurality of sub-modules or sub-units or sub-components. Any combination of all features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or units of any method or apparatus so disclosed, may be used in combination, except insofar as at least some of such features and/or processes or units are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order. These words may be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specifically stated.

Claims (10)

1. The traffic information reporting method is characterized by comprising the following steps:
the source main station initiates a switching request to the target station; the source main station is a 4G LTE base station connected with the UE before switching; the target station is a 4G LTE base station connected with the UE after switching; triggering the source master station to start a switching flow when UE moves between stations;
the source master station receives the UE user plane flow information sent by the source slave station and sends the UE user plane flow information to the target station; the source slave station is a 5G NR base station connected with the UE before switching; before switching is completed, the UE is connected with a source master station and a source slave station at the same time;
the target site initiates a path switching request to core network equipment according to the switching request, and triggers path switching;
the target site receives a path switching request confirmation message sent by the core network equipment and notifies the source master site to release the user context of the UE;
and the target station reports the UE user plane flow information to the core network equipment.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the source master station receiving UE user plane flow information sent by a source slave station comprises:
The source master station receives UE user plane flow information sent by a source slave station through signaling Data Usage report Transfer;
the sending the UE user plane traffic information to the target site includes:
the source master station sends the UE user plane traffic information to the target station through signaling Data Usage report Transfer.
3. A method according to claim 1 or 2, wherein the source master station, after initiating a handover request to a target station, comprises:
after receiving the switching request, the target site reserves resources for the UE and sends a switching request confirmation message to the source master site;
after receiving the switching request confirmation message, the source master station sends a resource release request to a source slave station;
and after the source slave station receives the resource release request, releasing the resources related to the UE, stopping providing user data to the UE, and sending a resource release request confirmation message to the source master station.
4. A method according to claim 3, wherein said sending a resource release request acknowledgement message to the source host site comprises:
the source main station sends a connection reconfiguration message to the UE and triggers the UE to apply the wireless configuration of the target station;
And the UE releases the wireless configuration of the source station and synchronizes with the target station.
5. The method according to claim 1 or 2, wherein said sending said UE user plane traffic information to said target station comprises:
and the source slave station sends a state transfer message to the target station through the source master station, and sends the UE data transfer condition to the target station.
6. The method of claim 5, wherein the sending the UE data transfer case to the target site comprises:
the source slave station forwards the UE related data to a target station through the source master station.
7. The method according to claim 1 or 2, wherein said informing the source host site to release the user context of the UE comprises:
the source master station informs the source slave station to release the UE user context related wireless resources and control plane resources.
8. A base station, the base station comprising:
a switching request module for initiating a switching request to a target site; the target station is a 4G LTE base station connected with the UE after switching;
the first receiving module is used for receiving the UE user plane flow information sent by the source slave station; the source slave station is a 5G NR base station connected with the UE before switching; before switching is completed, the UE is connected with a source master station and a source slave station at the same time;
A sending module, configured to send the UE user plane traffic information to the target site;
and the releasing module is used for receiving the user context notification of the UE released by the target site and releasing the user context of the UE.
9. A base station, the base station comprising:
the request receiving module is used for receiving a switching request initiated by a source main station; the source main station is a 4G LTE base station connected with the UE before switching; triggering the source master station to start a switching flow when UE moves between stations;
the second receiving module is used for receiving the UE user plane flow information sent by the source main station;
the path switching module is used for initiating a path switching request to core network equipment according to the switching request and triggering path switching;
a notification module, configured to receive a path switching request acknowledgement message sent by the core network device, and notify the source home site to release a user context of the UE;
and the reporting module is used for reporting the UE user plane flow information to the core network equipment.
10. A traffic information reporting system, the system comprising:
the source main station is used for initiating a switching request to the target station; receiving UE user plane flow information sent by a source slave station, and sending the UE user plane flow information to the target station; receiving a user context notification of the target site releasing the UE, and releasing the user context of the UE; the source main station is a 4G LTE base station connected with the UE before switching; triggering the source master station to start a switching flow when UE moves between stations; the source slave station is a 5G NR base station connected with the UE before switching; before switching is completed, the UE is connected with a source master station and a source slave station at the same time;
The target site is used for receiving the switching request initiated by the source main site; receiving the UE user plane flow information sent by the source main station; initiating a path switching request to core network equipment according to the switching request, and triggering path switching; receiving a path switching request confirmation message sent by the core network equipment, and notifying the source master station point to release the user context of the UE; reporting the UE user plane flow information to the core network equipment; the target station is a 4G LTE base station connected with the UE after switching.
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