CN110913429B - Wireless edge shunting transparent access method - Google Patents
Wireless edge shunting transparent access method Download PDFInfo
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- CN110913429B CN110913429B CN201911083623.9A CN201911083623A CN110913429B CN 110913429 B CN110913429 B CN 110913429B CN 201911083623 A CN201911083623 A CN 201911083623A CN 110913429 B CN110913429 B CN 110913429B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0289—Congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a wireless edge shunt transparent access method, wherein LeGW provides services required by telecommunication users and a cloud computing function by using a wireless access network nearby principle, solves the problem of poor user experience caused by high time delay and bandwidth bottleneck of the current 4G network, creates a telecommunication service environment with high performance, low delay and high bandwidth, accelerates the rapid downloading of various contents, services and applications in the network, can enable consumers to enjoy uninterrupted high-quality network experience, effectively improves the service quality and ensures the efficient operation of the network.
Description
Technical Field
The invention belongs to the technical field of Lte communication, and particularly relates to a wireless edge shunt transparent access method.
Background
Currently, 4G communication technology is based on conventional communication technology and utilizes some new communication technologies to continuously improve the network efficiency and functionality of wireless communication. The 3G provides a wireless communication environment for high-speed transmission, the 4G communication is an ultra-high-speed wireless network, an information super highway without cables, and the new network can enable telephone users to be connected in a wireless and three-dimensional virtual reality mode. The 4G communication technology has advantages in terms of call quality and data communication speed compared to conventional communication technologies. Current mobile phone consumers are still acceptable in terms of call quality. With the development and application of technology, the quality of mobile phone calls in the existing mobile phone network is further improved. In addition, the advanced technology ensures that the cost investment is greatly reduced, and the future 4G communication cost is lower than the current communication cost. The development of the Chinese communication technology is greatly promoted by the 4G communication technology, and the scale expansion of the Chinese communication information industry is also driven. Compared with 2G and 3G, the 4G communication technology has many advantages such as faster communication speed, wider network spectrum, more flexible communication, stronger mobile phone function, higher intelligence, smoother compatibility, more communication value-added services, higher communication quality, higher frequency band use efficiency, more favorable communication charge and the like.
From 2G to 4G, mobile networks are developing in the direction of reducing business processing links and implementing architecture flattening. However, the current network architecture cannot handle various services with low time delay and large bandwidth, especially popularization of high definition video and VR, and has more strict requirements on network experiments, and some services require a service target of 1ms end-to-end experiments to support the requirements of services such as internet of vehicles, industrial control and the like. In order to make a mobile network better handle low-delay/high-bandwidth services, the current method is to sink the network function and the service processing function to the edge near the access network, and reduce the middle level by shunting the services; meanwhile, the video and other services are distributed to the local network by configuring corresponding rules at the nodes at the access side edge, so that a great amount of transmission is saved for operators, and the localization of the content in the large-flow era becomes necessary. The LeGW can play more value under the popularization of large-flow business, reduce the pressure of a core network and improve the capacity and the value of an access network. The core value of the wireless edge shunt transparent access is a local shunt function for the wireless mobile internet. By configuring a shunting rule, part of terminal data traffic is directly transferred to the local network through the LeGW gateway without bypassing the LTE core network and the Internet network of an operator, so that ultra-low time delay and ultra-high bandwidth user experience of the local network are provided, the load of the core network of the operator is effectively reduced, and the LTE network congestion of the operator is reduced. The method comprises the steps that an LeGW Gateway is transparently deployed between an LTE base station and an LTE core network, the LTE base station and the core network use existing network equipment of an operator, the existing network equipment does not need to be modified, the existing network equipment is transparently deployed without sensing, the functions of flow unloading, bypass, local service flow control, position non-sensing and the like are achieved, and the LeGW is a local edge Gateway (local edge Gateway).
Disclosure of Invention
The invention aims to provide a wireless edge shunt transparent access method capable of overcoming the technical problems, and the method comprises the following steps:
step 1, flow unloading, namely, distributing the flow which accords with a set distribution rule to a network after edge calculation:
step 1.1, for the uplink traffic of the terminal, forwarding the media data to the LeGW through the base station, setting a shunting rule by the LeGW according to the shunting rule, namely through a destination address or a destination port number, and directly shunting the traffic from the LeGW to a local network without passing through an operator core network so as to reduce the data transmission quantity between the base station and the core network, reduce the pressure of an EPC (evolved packet core) and reduce the forwarding delay of the uplink data stream;
step 1.2, for the uplink traffic which does not conform to the unloading rule, the LeGW does not process, and the traffic still flows to the operator core network;
and step 1.3, comparing the type of the message with the relevant field of the uplink message for the downlink flow from the core network of the operator or the shunted local network, and correctly forwarding the downlink message by the original route to ensure that the downlink message correctly reaches the terminal.
And step 2, transparent deployment is carried out, the LeGW does not have any requirement on a base station and an LTE core network which are in butt joint with the LeGW, the base station and the core network do not need to be configured with any data, and only corresponding configuration needs to be added on the LeGW, so that a terminal user can distribute communication data to different servers without perception, and the data can be rapidly issued to the terminal user to enhance the user experience effect.
Step 2.1, adding a server where the LeGW is located between a base station of the current network and a core network, forwarding uplink messages of the terminal to the LeGW through the base station no matter whether the uplink messages of the terminal are user plane messages or control plane messages, unpacking the messages of the control plane LeGW, and then packaging the packets of the terminal without moving and forwarding the packets to a core network of an operator;
step 2.2, the LeGW of the user plane unpacks the content of the analysis packet to determine which network to forward, and then encapsulates the packet of the terminal without moving to forward to the appointed network;
and 2.3, when the LeGW receives the downlink packet of the core network or the shunted local network of the operator and transfers the downlink packet to the LeGW, firstly unpacking and analyzing the downlink packet to which terminal to send, and then encapsulating the message content without changing the content of the packet to return to the corresponding terminal.
And step 3, bypassing:
step 3.1, a mature and reliable abnormal protection mechanism is adopted, once the equipment is abnormal (such as power failure/crash), the abnormal protection mechanism system can automatically switch to an abnormal protection working mode to ensure transparent transmission of data between the LTE base station and the core network, and the reliability and the availability of the 4G public network are ensured:
and 3.2, a LeGW bypass is a mechanism for adding a message to a bypass network card of a server at regular time in a program, when the bypass does not receive the message for a long time or a bottom platform detects that the program hangs up to trigger a message for starting the bypass network card to be sent to the bypass network card, abnormal protection is automatically started, the original links of the base station and the core network are recovered to be normal, an uplink message of the terminal is directly transmitted to a core network of an operator, and a downlink message is also transmitted to the base station.
The method has the following advantages:
1. the local distribution function and the transparent access function of the wireless mobile Internet are provided, partial terminal data traffic is directly transferred to the local network through the LeGW gateway by configuring a distribution rule without bypassing the LTE core network and the Internet network of an operator, the ultra-low time delay and the ultra-high bandwidth user experience of the local network can be provided, the load of the core network of the operator can be effectively reduced, and the LTE network congestion of the operator can be reduced.
2. Transparent deployment: the LeGW has no any requirement on a base station and an LTE core network which are in butt joint with the LeGW, can be connected in series between the base station and the LTE core network of any manufacturer, does not need to modify configuration of the base station and the core network, has no special requirement on existing application/service, does not influence the performance of the application/service at all, does not need any transplantation or customization on the existing application/service or the application/service to be developed, and can be deployed to a local network quickly and seamlessly; terminals, base stations and core networks which conform to the existing 3GPP standard are not affected, KPIs of the existing network are not affected, and QoE can be improved.
3. Low time delay: by configuring a shunting rule on the LeGW gateway, partial terminal data traffic is directly transferred to the local network through the LeGW gateway without bypassing an operator LTE core network and an Internet network, so that the user time delay is greatly reduced, the user experience of special services can be obviously enhanced, the requirements of low-time-delay application of carrier-level industrial automation control are met, and the local video service can reduce the time delay by 50%.
4. The deployment mode is flexible: the seamless deployment of the application/service meets the networking requirements of different application scenes,
high bandwidth: the LeGW reduces Internet network congestion and improves network utilization efficiency through calculation and distribution of terminal communication data, so that bandwidth is improved, user experience is enhanced, and local video service bandwidth can be improved by 40%.
The method solves the problem of poor user experience caused by high time delay and bandwidth bottleneck of the current 4G network, the LeGW provides services required by telecommunication users and a cloud computing function by utilizing the principle of a wireless access network nearby, a telecommunication-level service environment with high performance, low delay and high bandwidth is created, the rapid downloading of various contents, services and applications in the network is accelerated, the consumers can enjoy uninterrupted high-quality network experience, the service quality is effectively improved, and the efficient operation of the network is ensured.
Drawings
Fig. 1 is a schematic diagram of a location of a LeGW deployed in an entire core network;
fig. 2 is a schematic flow chart of implementation of the LeGW method;
FIG. 3 is a schematic diagram of an intelligent small town network architecture to which the method of the present invention is applied;
fig. 4 is a schematic diagram of a driving school road test application network architecture to which the method of the present invention is applied.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The method comprises the following steps:
step 1, flow unloading, namely, shunting the flow which accords with a set shunting rule to a network after edge calculation:
step 1.1, for the uplink traffic of the terminal, forwarding the media data to the LeGW through the base station, setting a shunting rule by the LeGW according to the shunting rule, namely through a destination address or a destination port number, and directly shunting the traffic from the LeGW to a local network without passing through an operator core network so as to reduce the data transmission quantity between the base station and the core network, reduce the pressure of an EPC (evolved packet core) and reduce the forwarding delay of the uplink data stream;
step 1.2, for the uplink traffic which does not conform to the unloading rule, the LeGW does not process, and the traffic still flows to the operator core network;
and step 1.3, for the downlink flow from the core network of the operator or the shunted local network, the type of the message is analyzed and compared with the relevant field of the uplink message, and the original route forwards the downlink message correctly to ensure that the downlink message reaches the terminal correctly.
And step 2, transparent deployment is carried out, the LeGW does not have any requirement on a base station and an LTE core network which are in butt joint with the LeGW, the base station and the core network do not need to be configured with any data, and only corresponding configuration needs to be added on the LeGW, so that a terminal user can distribute communication data to different servers without perception, and the data are rapidly issued to the terminal user to enhance the user experience effect.
Step 2.1, a server where the LeGW is located is added between a base station of the current network and a core network, a terminal uplink message, no matter the terminal uplink message is a user plane message or a control plane message, is forwarded to the LeGW through the base station, and the LeGW message of the control plane is unpacked firstly and then packages the terminal packet without moving and forwards the terminal packet to the core network of an operator;
step 2.2, the LeGW of the user plane unpacks the content of the analysis packet to determine which network to forward, and then encapsulates the packet of the terminal without moving to forward to the appointed network;
and 2.3, when the LeGW receives the downlink packet of the core network or the shunted local network of the operator and transfers the downlink packet to the LeGW, firstly unpacking and analyzing the downlink packet to which terminal to send, and then encapsulating the message content without changing the content of the packet to return to the corresponding terminal.
And step 3, bypassing:
step 3.1, a mature and reliable abnormal protection mechanism is adopted, once the equipment is abnormal (such as power failure/crash), the abnormal protection mechanism system can automatically switch to an abnormal protection working mode to ensure transparent transmission of data between the LTE base station and the core network, and the reliability and the availability of the 4G public network are ensured:
and 3.2, adding a message sending mechanism to a bypass network card of the server at regular time in the program, automatically starting abnormal protection when the bypass does not receive the message for a long time or a bottom platform detects that the program hangs down to trigger a message for starting the bypass network card to be sent to the bypass network card, enabling the original links of the base station and the core network to be normal, directly transmitting an uplink message of the terminal to the core network of the operator, and transmitting a downlink message to the base station.
Fig. 1 is a schematic diagram of a location of a LeGW deployed in an entire core network; the LeGW is a local gateway transparently deployed at the edge of the mobile network, facing the local network, and terminating at the L-SGi interface. The method is transparently deployed without sensing in the LTE network, and realizes the functions of flow unloading, domain name resolution, bypass, local service flow control, local service flow statistics and reporting and the like. The introduction of the LeGW has no requirements on a terminal, a base station, a core network and the like, the LeGW gateway is transparently deployed between the LTE base station and the LTE core network, and the LTE base station and the core network use existing network equipment of an operator without any modification.
FIG. 3 is a schematic diagram of an intelligent small town network architecture to which the method of the present invention is applied; in order to solve the requirement of intelligent town park information construction and meet the development requirements of park information and intelligence under new normality, the LeGW is used for constructing a high-speed, safe and reliable, good expandability, low cost and simple and convenient-to-use high-cost-performance basic communication special network covering the whole park based on the 4G technology for the towns, and a one-stop communication technology solution is provided for towns in mobile office, industrial intelligent manufacturing, internet of things development, emergency command scheduling and the like.
Fig. 4 is a schematic diagram of a driving school road test application network architecture applying the method of the present invention, a driving school road test needs to transmit field test information to a driving test command center in real time, the data flow is large, the requirements on wireless transmission bandwidth and real-time performance are high, the LeGW solution can meet the requirements of multi-channel video return, voice communication and examinee data transmission of each vehicle under test in the test, the workload of an examiner can be reduced, on the test route, a single LTE base station can simultaneously meet the requirement that a plurality of vehicle-mounted data are returned to a vehicle management monitoring center, and the 4G wireless access network resources are maximally utilized to reduce the load of the LTE core network of an operator; meanwhile, the system is physically isolated from the public network of the operator and ensures the information security.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the present disclosure should be covered within the scope of the present invention claimed in the appended claims.
Claims (3)
1. A method for wireless edge offload transparent access, comprising the steps of:
step 1, flow unloading, namely, distributing the flow which accords with a set distribution rule to a network after edge calculation:
step 2, transparent deployment is carried out, the LeGW does not have any requirement on a base station and an LTE core network which are in butt joint with the LeGW, the base station and the core network do not need to be configured with any data, and only corresponding configuration needs to be added on the LeGW, so that a terminal user can distribute communication data to different servers without perception, and the data are rapidly issued to the terminal user;
and step 3, bypassing:
step 3.1, a mature and reliable abnormal protection mechanism is adopted, and once the equipment is abnormal, the abnormal protection mechanism system can automatically switch to an abnormal protection working mode to ensure transparent transmission of data between the LTE base station and the core network:
and 3.2, a LeGW bypass is a mechanism for adding a message to a bypass network card of a server at regular time in a program, when the bypass does not receive the message for a long time or a bottom platform detects that the program hangs up to trigger a message for starting the bypass network card to be sent to the bypass network card, abnormal protection is automatically started, the original links of the base station and the core network are recovered to be normal, an uplink message of the terminal is directly transmitted to a core network of an operator, and a downlink message is also transmitted to the base station.
2. The method of claim 1, wherein the step 1 comprises the following steps:
step 1.1, for the uplink traffic of the terminal, forwarding the media data to the LeGW through the base station, setting a shunting rule by the LeGW according to the shunting rule, namely through a destination address or a destination port number, and directly shunting the traffic from the LeGW to a local network without passing through an operator core network;
step 1.2, for the uplink traffic which does not accord with the unloading rule, the LeGW does not process, and the traffic still flows to the core network of the operator;
and step 1.3, comparing the type of the message with the relevant field of the uplink message for the downlink flow from the core network of the operator or the shunted local network, and correctly forwarding the downlink message by the original route to ensure that the downlink message correctly reaches the terminal.
3. The method of claim 1, wherein the step 2 comprises the steps of:
step 2.1, a server where the LeGW is located is added between a base station of the current network and a core network, a terminal uplink message, no matter the terminal uplink message is a user plane message or a control plane message, is forwarded to the LeGW through the base station, and the LeGW message of the control plane is unpacked firstly and then packages the terminal packet without moving and forwards the terminal packet to the core network of an operator;
step 2.2, the LeGW of the user plane unpacks and analyzes the content of the packet to determine which network to forward, and then encapsulates the packet of the terminal without moving to forward to the appointed network;
and 2.3, when the LeGW receives the downlink packet of the core network or the shunted local network of the operator and transfers the downlink packet to the LeGW, unpacking and analyzing the downlink packet to which the downlink packet is sent, and then packaging the message content to return to the corresponding terminal without changing the packet content.
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| EP2137911A1 (en) * | 2007-04-13 | 2009-12-30 | Nokia Corporation | Method, radio system, mobile terminal and base station for providing local breakout service |
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