A low-latency, low-jitter network transmission system and method for home users

Abstract

The application provides a low-delay and low-jitter network transmission system and method for home users, relates to the technical field of network transmission, and comprises the following steps: constructing an exclusive backbone channel transmission by using wavelength division transmission to transmit exclusive transmission flow; physically networking through a PON device and an OTN terminal device, separating target flow from common flow according to flow detection and separation identification of a cloud e-sports service ID; identifying an application UID in the target service flow according to a flow slicing technology, and allocating an exclusive guarantee channel for the target service flow; physically isolating an independent service port from a TV port and a common network port according to low-jitter flow and a new version of an optical modem; and pre-binding a MAC address and the application UID of a thin terminal, so that the thin terminal can automatically send an access request and quickly access a target service platform after being powered on without additional configuration. The application greatly reduces transmission delay and eliminates the jitter of data packet transmission by innovating home broadband transmission technology.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of network transmission, in particular to a low-delay and low-jitter network transmission system and method for home users. BACKGROUND

[0002] Currently, there are two main modes of e-sports cloud computing technology. One is a mode based on full optical access, which requires independent deployment of a full optical physical link. The cost is high, and the general access cost is 8000 yuan per road. It has investment value in Internet cafes, e-sports hotels and other operating places, but for home scenarios, most customers cannot accept this cost. The other is a mode based on Internet access. There are many Internet products of this type, such as NetEase cloud game and Tencent Start cloud game. This mode is affected by the delay and jitter of Internet transmission, and problems such as blurred picture and slow mouse response often occur, which reduces the experience of operation games that require fast response. SUMMARY

[0003] The present application provides a low-delay and low-jitter network transmission system and method for home users to solve the defects of transmission delay and data packet transmission jitter in the prior art.

[0004] The present application provides a low-delay and low-jitter network transmission system for home users, comprising:

[0005] An OTN backbone transmission module is used to construct an exclusive backbone channel transmission using wavelength division transmission technology to transmit exclusive transmission traffic, and supports star-shaped distribution to access multiple street PON networks.

[0006] A PON network access module receives exclusive transmission traffic, physically networks with OTN end devices through cell-level PON devices, identifies cloud e-sports business IDs according to traffic detection and separation, separates target traffic from ordinary traffic, and obtains target service traffic.

[0007] An OLT bandwidth guarantee module identifies the application UID in the target service traffic according to the traffic slicing technology, allocates a dedicated guarantee channel for it, and obtains low-jitter traffic.

[0008] A home gateway dedicated port module performs independent transmission of traffic within the home according to the low-jitter traffic and the independent service port of the new version of the optical modem, and physically isolates the independent service port from the TV port and the ordinary network port.

[0009] A thin terminal direct connection module receives low-delay and low-jitter traffic through the independent service port. The thin terminal is pre-bound with a MAC address and an application UID, and can automatically send an access request without additional configuration after starting up, and quickly access the target service platform.

[0010] The application provides a low-delay and low-jitter network transmission system for household users, and an OTN backbone transmission module comprises:

[0011] A wavelength division transmission unit is used for dividing optical signal channels of different wavelengths by using a wavelength division multiplexing technology, and constructing a physically isolated exclusive backbone transmission path.

[0012] An optical layer processing unit is connected, an internal optical amplification module is used for compensating attenuation of the optical signal in transmission, and a dispersion compensation component is used for correcting signal distortion, so that a stable exclusive backbone transmission path is obtained.

[0013] A star-shaped access unit is used for establishing fiber connection between the stable exclusive backbone transmission path and PON networks of multiple streets through OTN end equipment, forming a star-shaped distribution architecture, and extending the backbone channel resource to a street-level access node.

[0014] A computing power machine room docking unit is used for connecting distributed access nodes to aggregate service traffic of the PON networks of the streets through the backbone fiber, and directly transmitting the service traffic to optical access equipment of a city computing power machine room, so that feedback data of the computing power machine room is distributed to corresponding streets through the star-shaped access unit, an end-to-end exclusive transmission closed loop is completed, and a complete link is formed.

[0015] The application provides a low-delay and low-jitter network transmission system for household users, and the specific steps for constructing an exclusive backbone transmission path in the wavelength division transmission unit are as follows:

[0016] The transmission fiber is subjected to link preprocessing, and a clean fiber link is output.

[0017] Wavelength division multiplexing equipment is selected according to the clean fiber link, wavelength resources are planned according to service bandwidth requirements, exclusive sub-wavelengths are allocated to target services, and equipment configuration parameters are output.

[0018] The equipment configuration parameters are loaded into the wavelength division multiplexing equipment, the equipment generates an optical carrier through an optical signal generator, service data of the household users is modulated onto the exclusive optical carrier, specific wavelength optical signals carrying the service data are formed, and modulated exclusive wavelength optical signals are output.

[0019] The modulated exclusive wavelength optical signals are injected into the clean fiber link, and the optical signals of the wavelength division multiplexing equipment and other wavelength optical signals are integrated and synchronously transmitted, so that a physically isolated exclusive backbone transmission path is constructed.

[0020] The application provides a low-delay and low-jitter network transmission system for household users, and a PON network access module comprises:

[0021] A physical networking unit is used for establishing fiber physical connection between a cell-level PON device and OTN end equipment, forming a transmission link, and receiving exclusive transmission traffic.

[0022] The flow detection unit monitors all data flowing through the link in real time according to the transmission link and the service feature library, and accurately identifies the exclusive service ID carried by the target service.

[0023] The flow separation unit performs flow splitting in the transmission link, isolates the flow carrying the target service ID from the ordinary home network flow, and separately guides the flow to a dedicated transmission path to output the target service flow.

[0024] According to the low-latency and low-jitter network transmission system for home users provided by the application, the specific steps for accurately identifying the exclusive service ID carried by the target service in the flow detection unit are as follows:

[0025] The transmission link builds a real-time data capture mechanism, and all data frames flowing through the link are completely and copied to the detection channel through link layer mirroring to form the original data stream to be analyzed.

[0026] According to the original data stream, the target service ID feature template in the service feature library is called to parse the packet header field of the data frame byte by byte, extract the potential service identification information, and obtain the identification field to be verified.

[0027] The identification field to be verified is compared with the preset exclusive service ID in the service feature library, and it is judged whether the field matching degree exceeds the threshold value. If yes, it is determined that the exclusive service ID carried by the target service is identified accurately.

[0028] According to the low-latency and low-jitter network transmission system for home users provided by the application, the OLT bandwidth guarantee module comprises:

[0029] The application UID identification unit extracts the application UID in the flow according to the target service flow and the application feature library.

[0030] The flow slicing unit divides the physical bandwidth of the OLT device into a plurality of logically isolated virtual channels according to the flow slicing technology, and binds an exclusive virtual channel for each identified application UID.

[0031] The channel stability strengthening unit suppresses the flow fluctuation in the exclusive virtual channel through a dynamic bandwidth adjustment mechanism, and shields the resource occupation request of other services to the channel, so that the target service flow is smoothly transmitted in the exclusive channel to output low-jitter flow.

[0032] According to the low-latency and low-jitter network transmission system for home users provided by the application, the specific steps for binding the exclusive virtual channel in the flow slicing unit are as follows:

[0033] The traffic slicing technology is used to pool the physical bandwidth of the OLT device, a resource quota of a virtual channel is calculated according to the bandwidth requirement of a target service, a plurality of independent logical bandwidth intervals are divided, and a virtual channel resource pool is formed.

[0034] The identified application UID list is called according to the virtual channel resource pool, a corresponding logical bandwidth interval is allocated to each application UID, and the application UID is associated with a specified virtual channel through a port mapping rule.

[0035] The association between the application UID and the virtual channel is written into a forwarding rule table of the OLT device, when traffic with the application UID enters the OLT, the device automatically guides the traffic to the bound exclusive virtual channel according to the forwarding rule.

[0036] According to the low-delay and low-jitter network transmission system for home users provided by the application, the home gateway exclusive port module comprises:

[0037] The port isolation unit separates the independent service port from the TV port and the general network port at the physical layer according to the hardware design of the new version optical modem, and forms independent transmission lines that do not interfere with each other.

[0038] The traffic directional access unit directs the low-jitter traffic to the independent service port according to the routing strategy built in the optical modem and the independent transmission line.

[0039] The transmission guarantee unit monitors the low-jitter traffic transmitted by the independent service port in real time, shields the interference signals of other ports, optimizes the signal transmission parameters, and enables the traffic to be transmitted with low delay and low jitter within the home.

[0040] According to the low-delay and low-jitter network transmission system for home users provided by the application, the thin terminal direct connection module comprises:

[0041] The identity information binding unit pre-binds the device exclusive MAC address with the application UID of the target service to form a unique identity combination.

[0042] The traffic receiving and adapting unit receives the low-delay and low-jitter traffic transmitted through the independent service port and adapts the traffic transmission format.

[0043] The automatic access request unit automatically calls the pre-bound identity combination after the thin terminal is powered on without additional configuration, generates an access request containing the MAC address and the application UID, and sends the access request to the target service platform.

[0044] The fast access response unit receives the identity authentication feedback of the target service platform after receiving the access request, completes the link establishment and session negotiation, and enables the thin terminal to directly access the target service platform.

[0045] The application also provides a low-delay and low-jitter network transmission method for home users, comprising:

[0046] S1: an exclusive backbone channel is constructed by using a wavelength division transmission technology to transmit exclusive transmission traffic, and a plurality of street PON networks are supported in a star distribution.

[0047] S2: receiving exclusive transmission traffic, physically networking the cell-level PON equipment and the OTN terminal equipment, identifying the cloud e-sports service ID according to traffic detection and separation, separating the target traffic from the ordinary traffic, and obtaining the target service traffic.

[0048] S3: identifying the application UID in the target service traffic according to the traffic slicing technology, assigning a dedicated guarantee channel to the application UID, and obtaining low-jitter traffic.

[0049] S4: transmitting the traffic independently within the home according to the low-jitter traffic and the independent service port of the new version of the optical modem, and physically isolating the independent service port from the TV port and the ordinary network port.

[0050] S5: receiving the low-delay and low-jitter traffic through the independent service port, pre-binding the MAC address and the application UID of the thin terminal, and automatically sending an access request without additional configuration after starting up, and quickly accessing the target service platform.

[0051] The low-delay and low-jitter network transmission system for home users provided by the application solves the problems of fuzzy cloud e-sports pictures and game lagging under the home broadband environment, and the final cost of per household access cost is only increased by 8 yuan, and the beneficial effects are:

[0052] The application constructs an end-to-end exclusive expressway system from the city computing power center to the thin terminal within the home, thereby completely solving the delay and jitter problems caused by bandwidth contention during peak periods in the traditional shared Internet. The exclusive physical channel is realized at the backbone network level. The system opens an independent wavelength channel in the optical fiber for high-demand services such as cloud e-sports through OTN technology and wavelength division multiplexing. The bandwidth occupation caused by the behavior of ordinary users downloading and watching ultra-high-definition videos is avoided from the root. This exclusivity ensures that the end-to-end delay of service traffic in a transmission of up to 40 kilometers can be stably controlled within 1.5 milliseconds, which is much lower than the average level of 40 milliseconds of traditional Internet, and there is almost no jitter. It provides an unprecedented stability foundation for applications such as cloud gaming and remote interaction that are extremely sensitive to network real-time performance.

[0053] The star access design of the system and the accurate traffic separation mechanism realize efficient coverage and quality guarantee at low cost. A central OTN device connects multiple street PON networks to form a star distribution architecture, which not only economically and efficiently extends the high-quality backbone transmission capability to the user's home, but also reduces the cost of a single user through large-scale access, so that such high-quality services can be popularized to a wide range of household users.

[0054] In the PON access node, the system can intelligently identify the target traffic carrying a specific service ID and separate it from the ordinary home network traffic and introduce them into different transmission paths. The system is deeply optimized in the home and terminal access link to ensure the closed loop of extreme experience. The OLT device allocates a dedicated and logically isolated guarantee channel for the identified specific application UID through traffic slicing technology, further strengthening the stability of transmission. The independent service port design of the new version of the optical modem directly transmits this low-jitter traffic to the thin terminal through a physically isolated port in the home, avoiding potential interference with other devices such as televisions and computers. The thin terminal realizes automatic, fast and secure access to the service platform through pre-binding, and users can obtain the high-quality service experience of "turn on and use" without complex configuration.

[0055] The present application does not locally repair the existing Internet, but builds a high-quality dedicated network parallel to the best-effort public Internet. It provides household users with ultra-low delay, zero-jitter stable transmission experience comparable to LAN-level through exclusive channels from backbone, access to home terminals, intelligent traffic scheduling and physical isolation design, fundamentally solving the lag and delay problem of real-time interactive applications such as cloud gaming, and opening up new possibilities for high-quality Internet applications to enter ordinary households. BRIEF DESCRIPTION OF DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0057] Figure 1 is a module diagram of a low-delay and low-jitter network transmission system for household users provided by an embodiment of the present application;

[0058] Figure 2 is a flowchart of an existing new type of e-sports home broadband transmission provided by an embodiment of the present application;

[0059] Figure 3A flowchart of a process of integrating an existing new technology OTN into networking is provided by the embodiment of the present application.

[0060] Figure 4 A flowchart of a process of integrating an existing new technology OTN into networking is provided by the embodiment of the present application. DETAILED DESCRIPTION

[0061] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by a person of ordinary skill in the art without creative labor on the basis of the described embodiments belong to the scope of protection of the present application.

[0062] The present application will be described below with reference to the drawings. Figures 1-4 A low-latency and low-jitter network transmission system and method for home users are described.

[0063] As shown in the drawings, the low-latency and low-jitter network transmission system for home users provided by the embodiment of the present application mainly comprises: Figures 1-4

[0064] An OTN backbone transmission module is used to replace the traditional Internet shared bandwidth transmission mode and build a dedicated backbone transmission channel.

[0065] A wavelength division transmission unit is used to divide different wavelength optical signal channels by using wavelength division multiplexing technology and build a physically isolated exclusive backbone transmission path. The wavelength division transmission unit is the core starting point of OTN (optical transport network) backbone transmission, and its core function is realized based on wavelength division multiplexing technology. This technology divides multiple different wavelength optical signal channels in a single optical fiber, each wavelength corresponds to an independent transmission path, and the channels are completely isolated at the physical layer by wavelength isolation technology. This design allows target services such as cloud gaming to exclusively occupy a wavelength channel without sharing bandwidth resources with ordinary Internet traffic, thus avoiding bandwidth congestion problems under the traditional shared mode from the root. At the same time, each wavelength channel can support a transmission rate of 10G / 100G or even higher, which can meet the needs of a large number of home users to simultaneously perform low-latency services and provide a high-bandwidth and interference-free underlying transmission path for subsequent units.

[0066] The transmission optical fiber is subjected to link preprocessing, the impurities at the optical fiber port are cleaned, and the link attenuation condition is detected to ensure that the optical fiber has the basic conditions for stable transmission of optical signals and outputs a clean optical fiber link that meets the transmission standard.

[0067] ​Based on the clean optical fiber link, the appropriate wavelength division multiplexing equipment is selected, the wavelength resources are planned according to the service bandwidth demand, the exclusive sub-wavelength is allocated for the target service, and the wavelength division multiplexing equipment configuration parameters with the exclusive wavelength allocation scheme are output.

[0068] The configuration parameters are loaded into the wavelength division multiplexing equipment, the optical carrier corresponding to the wavelength is generated by the optical signal generator, and the service data of the home user is modulated onto the exclusive optical carrier to form a specific wavelength optical signal carrying service data, and the modulated exclusive wavelength optical signal is output.

[0069] The modulated exclusive wavelength optical signal is injected into the clean optical fiber link, and the optical signal and other wavelength optical signals are integrated by the combining unit of the wavelength division multiplexing equipment and transmitted synchronously, and different wavelength optical signals independently propagate in the optical fiber without interference, and finally a physically isolated exclusive backbone transmission path is constructed.

[0070] The optical layer processing unit compensates for the attenuation of the optical signal in transmission through the built-in optical amplification module, and corrects the signal distortion with the help of the dispersion compensation component to obtain a stable exclusive backbone transmission path.

[0071] The optical layer processing unit directly connects the exclusive backbone transmission path constructed by the wavelength division transmission unit and focuses on ensuring the long-distance transmission quality of the optical signal. The built-in optical amplification device can compensate for the attenuation of the optical signal caused by the loss of the optical fiber during transmission, restore the signal strength to the standard level, and ensure that the signal is not lost during transmission at a distance of 40 kilometers or more. The dispersion compensation component corrects the transmission speed deviation of the optical signal caused by the wavelength difference to avoid data errors caused by signal waveform distortion. Through these two core processes, the optical layer processing unit optimizes the basic channel of the wavelength division transmission unit into a stable exclusive backbone transmission path, ensuring that the optical signal maintains low latency and low error rate during long-distance transmission, and providing reliable support for the extension coverage of the subsequent star-shaped access unit.

[0072] The star-shaped access unit establishes an optical fiber connection with multiple street PON (Passive Optical Network) networks through the OTN terminal equipment based on the stable exclusive backbone transmission path, forms a star-shaped distribution architecture, and extends the backbone channel resources to the street-level access nodes.

[0073] The star-shaped access unit is based on the stable exclusive backbone transmission path output by the optical layer processing unit. The OTN terminal equipment deployed in the regional machine room establishes a fiber connection with the PON network of multiple streets. The OTN terminal equipment serves as the center node of the star-shaped architecture and can access dozens of street-level PON networks (each street covers hundreds of households) at the same time, forming a center-radiation star-shaped distribution pattern. This architecture extends the backbone channel resources built by the wavelength division transmission unit from the core machine room to the street-level access node, enabling each household user in the street to access the exclusive backbone link through the local PON network. At the same time, the star-shaped design realizes traffic aggregation and distribution through centralized OTN terminal equipment, reducing the repeated deployment of fiber resources and reducing the access cost of individual users through large-scale coverage, laying a distributed access foundation for the end-to-end transmission of the computing power machine room docking unit.

[0074] The computing power machine room docking unit connects the distributed access nodes to aggregate the business traffic of each street PON network through the backbone fiber and directly transmits it to the optical access equipment of the urban computing power machine room. The feedback data of the computing power machine room is distributed to the corresponding street through the star-shaped access unit, completing the exclusive transmission closed loop from end to end and forming a complete link.

[0075] The computing power machine room docking unit connects the star-shaped access unit extended to the distributed access nodes in the street and undertakes the management of the business traffic aggregation-transmission-distribution closed loop. In the data uplink direction, this unit aggregates the business traffic of household users collected by each street PON network through the backbone fiber and directly transmits it to the optical access equipment of the urban computing power machine room, avoiding the multi-level routing jump of traditional Internet. In the data downlink direction, the feedback data generated by the computing power machine room is processed by this unit and then distributed to the corresponding PON network in the street through the star-shaped architecture of the star-shaped access unit, and finally transmitted to the target household user. The entire process relies on the exclusive channel of the wavelength division transmission unit and the stable path of the optical layer processing unit to form an end-to-end exclusive transmission closed loop from the household user to the computing power machine room, ensuring the low latency and low jitter characteristics of the entire link, and together with the previous unit, it constitutes a complete backbone transmission link.

[0076] With ultra-high speed and low latency characteristics, the end-to-end transmission delay can be controlled within 1.5 ms within 40 km transmission distance, which is much better than the traditional Internet delay level of about 40 ms. Support star distribution access design, each OTN end device can access multiple street PON networks, distribute device deployment and operation and maintenance costs to a large number of home users, and reduce the use cost of individual users. Strong transmission stability, long-distance transmission capability, stable connection of urban computing room and terminal access network, provide direct computing power node for home users High reliable transmission link. The original Internet transmission mode uses shared bandwidth, that is, a cell has a maximum of 10G concurrent carrying capacity, and all home users in this area can basically occupy the outlet during busy hours at night, so the traffic with low latency and high quality transmission will be affected (even the current gigabit home broadband has this problem), the delay is generally about 40 ms, so the current mainstream cloud game mode has more or less lag and serious delay during playing. Under this premise, we introduce OTN transmission tools, OTN uses wavelength division transmission (wavelength division transmission is exclusive transmission channel, transmission rate is extremely fast, 40 km within 1.5 ms), through OTN transmission to each city computing room, OTN has the characteristics of long transmission distance and high stability, each OTN end device can access multiple street PON networks, realize star distribution access, so the cost is distributed to each user.

[0077] The PON network access module receives exclusive transmission traffic, establishes optical fiber physical connection with the OTN end device through the cell-level PON device, identifies the cloud e-sports business ID according to the traffic detection and separation, and separates the target traffic from the ordinary traffic.

[0078] The physical networking unit establishes optical fiber physical connection with the OTN end device through the cell-level PON device, forms a transmission link, and receives exclusive transmission traffic.

[0079] The traffic detection unit monitors all data flowing through the link in real time according to the transmission link and the business feature library, accurately identifies the exclusive business ID (name) carried by the target business.

[0080] The transmission link building real-time data capture mechanism copies all data frames flowing through the link to the detection channel in a complete and accurate manner through link layer mirroring or traffic probe function, forming the original data stream to be analyzed.

[0081] Based on the original data stream, the target business ID feature template in the business feature library is called to analyze the packet header field of the data frame byte by byte, extract potential business identification information, and obtain the identification field to be verified.

[0082] The identification field to be verified is compared with a preset exclusive service ID in the service feature library through hashing, and if the field matching degree exceeds a threshold and passes the verification rule, it is determined that the exclusive service ID carried by the target service is the exclusive service ID, and the accurate identification is completed.

[0083] The traffic separation unit performs traffic splitting operation in the transmission link to isolate the traffic carrying the target service ID from the general home network traffic and guide them to a dedicated transmission path separately to output the target service traffic.

[0084] The identification strategy of the target service such as cloud e-sports is preset in the PON device. When the traffic with the specific service ID is detected, it is automatically separated from the general home network traffic to ensure independent transmission of the two types of traffic. It does not affect the operation of the general traffic, maintains the normal use of the general network services such as video watching and file downloading of the home user while ensuring the transmission performance of the target service, and realizes parallel operation of multiple services without interference. After joining the OTN device, it cannot be directly transmitted to the home customer, and it also needs to join the PON device and the OLT (optical splitter of the cell) in the networking, at this time, the OTN needs to be physically connected with the PON device in the region, and at the same time, the strategy setting is performed in the PON device. When the traffic detection capability of the PON device detects the cloud e-sports service ID, traffic separation is performed, which does not affect the operation of the general traffic and ensures the stability of the cloud e-sports service.

[0085] The OLT bandwidth guarantee module identifies the application UID (user name) in the target service traffic according to the traffic slicing technology, allocates an exclusive guarantee channel for it, and obtains low jitter traffic. The OLT device has the function of guaranteeing the traffic of a specific application, which is called traffic slicing in the industry. After receiving the traffic of the home optical modem, the OLT identifies the UID of the application and diverts it to a separate guarantee channel. This channel will not be shared with other services even if it is not used, so the stability is extremely strong.

[0086] The application UID identification unit extracts the application UID in the target service traffic according to the target service traffic and the application feature library.

[0087] The traffic slicing unit divides the physical bandwidth of the OLT device into multiple logically isolated virtual channels according to the traffic slicing technology, and binds an exclusive virtual channel for each identified application UID.

[0088] The traffic slicing technology is used to pool the physical bandwidth of the OLT device, calculate the resource quota of the virtual channel according to the bandwidth demand of the target service, divide multiple independent logical bandwidth intervals, and form a virtual channel resource pool that can be allocated.

[0089] According to the virtual channel resource pool, the identified application UID list is called, a corresponding logical bandwidth interval is allocated for each application UID, and the application UID is associated with the specified virtual channel through a port mapping rule.

[0090] The association relationship between the application UID and the virtual channel is written into the forwarding rule table of the OLT device, and when traffic with the application UID enters the OLT, the device automatically directs the traffic to the bound exclusive virtual channel according to the forwarding rule.

[0091] The channel stability strengthening unit suppresses the flow fluctuation in the exclusive virtual channel through a dynamic bandwidth adjustment mechanism, and shields the resource occupation request of other services to the channel, so that the target service flow is smoothly transmitted in the exclusive channel, and low-jitter flow is output.

[0092] The home gateway exclusive port module performs independent transmission of traffic within the home according to the low-jitter flow and the independent service port of the new version of the optical modem, and physically isolates the independent service port from the TV port and the general network port.

[0093] The port isolation unit physically separates the independent service port from the TV port and the general network port according to the hardware design of the new version of the optical modem, forming independent transmission lines that do not interfere with each other.

[0094] The flow directional access unit directs the low-jitter flow to the independent service port according to the routing strategy built-in the optical modem and the independent transmission line.

[0095] The transmission guarantee unit monitors the low-jitter flow transmitted by the independent service port in real time, shields the interference signals of other ports, optimizes the signal transmission parameters, and enables the flow to be transmitted within the home with low latency and low jitter.

[0096] The thin terminal direct connection module receives low-latency and low-jitter flow through the independent service port, and the thin terminal is pre-bound with the MAC (Media Access Control) address and the application UID, so that it can automatically send an access request and quickly access the target service platform after booting without additional configuration.

[0097] The identity information binding unit completes the pre-binding of the device exclusive MAC address and the target service application UID, forms a unique identity recognition combination, and the flow reception adaptation unit determines the service association based on the pre-binding relationship, receives the low-latency and low-jitter flow transmitted through the independent service port, and adapts the flow transmission format to ensure that the transmission content matches the service demand corresponding to the bound identity recognition combination.

[0098] The traffic receiving adaptation unit completes traffic transfer format adaptation, and the automatic access request unit calls the unique identity combination associated and generated by the identity information binding unit in the adaptation process, generates an access request containing a MAC address and an application UID after the thin terminal is powered on without additional configuration, and makes the request information consistent with the business logic of the previous binding and traffic adaptation.

[0099] After the automatic access request unit generates an access request containing the pre-bound identity combination, the fast access response unit receives the access request, performs identity verification interaction with the target business platform according to the MAC address and the application UID carried in the request, receives the identity verification feedback of the platform, and then completes link establishment and session negotiation, so that the thin terminal directly accesses the target business platform based on the complete logical chain generated by the previous binding, adaptation and request generation.

[0100] BRAS (Broadband Remote Access Server) is a key device connecting the access network and the Internet exit, and its role is to manage user access + control the core hub of traffic forwarding:

[0101] The Internet data of a home terminal (such as an optical modem) is transmitted to the BRAS after being aggregated by the OLT and PON, at which time the BRAS performs authentication and authorization on the accessed user, and allocates an IP address to ensure that only legitimate users can access the network.

[0102] The BRAS manages and forwards the traffic of the authenticated user: on the one hand, it controls the bandwidth and guarantees the quality of service according to the network policy, and on the other hand, it forwards the user data to the Internet exit, and receives the downlink data of the Internet and distributes it to the corresponding user terminal.

[0103] In the link of the present application, the BRAS is the gatekeeper of user access and the commander of traffic scheduling, responsible for standardizing the scattered traffic of home broadband to access the Internet, while realizing the management functions of user authentication, charging, bandwidth control, etc.

[0104] The present application provides a low-latency, low-jitter network transmission method for home users, which greatly reduces the transmission delay and eliminates the jitter of data packet transmission by innovating the home broadband transmission technology, solves the problems of blurred cloud gaming picture and game lag in the home broadband environment, and finally increases the access cost of each household by only 8 yuan, achieving the beneficial effects of:

[0105] General internet cloud game, packet loss rate is about 5%, jitter is large, time delay is about 70ms, resolution is between 360-720, under the premise of ensuring low-cost access, the packet loss rate is reduced to 0%, the jitter rate is greatly reduced, the time delay of the home user to the cloud computing power is only 1ms, and finally the clear 2K resolution picture is realized, the refresh rate can reach 240hz, various games are smoothly run, and the effect is basically consistent with that of the local host.

[0106] The application also provides a low-delay and low-jitter network transmission method for home users, comprising:

[0107] S1: a wavelength division transmission technology is used to construct an exclusive backbone channel to transmit exclusive transmission traffic, and a star-shaped distribution access multiple street PON networks is supported.

[0108] S2: receiving exclusive transmission traffic, physically networking through a cell-level PON device and an OTN end device, identifying the target traffic and the ordinary traffic according to the traffic detection and separation identification of cloud e-sports and other service IDs, and obtaining the target service traffic.

[0109] S3: identifying the application UID in the target service traffic according to the traffic slicing technology, allocating a dedicated guarantee channel for the application UID, and obtaining low-jitter traffic.

[0110] S4: according to the low-jitter traffic and the independent service port of the new version of the optical modem, performing independent transmission of the traffic in the home, and physically isolating the independent service port from the TV port and the ordinary network port.

[0111] S5: receiving low-delay and low-jitter traffic through the independent service port, pre-binding the MAC address and the application UID of the thin terminal, and automatically sending an access request without additional configuration after starting to quickly access the target service platform.

[0112] In specific embodiments, the switching device is connected to the OTN in the computing power room, one optical port is exclusively occupied in the computing power room device for each cell, and the OTN leads to different positions, the 6881 model switch accesses multiple optical paths, and the core room OTN leads to the OTN of different streets. The ports corresponding to the OTN end devices of each street are connected to the PON devices of each cell using optical fibers. The PON device here can cover a cell. An OLT (optical splitter) is placed in each building or floor of each cell, and the optical fiber connected by the PON network is inserted into the OLT corresponding to the home port. The indoor optical fiber is connected to the optical modem, and the service network port is selected to access the thin terminal in the customer's field, and the normal start-up does not require configuration.

[0113] The working process is as follows:

[0114] After the thin terminal is started, an access request is sent through an independent service port of the home optical CATV, and the request contains a bound MAC address and an application UID.

[0115] The independent service port of the home optical CATV independently transmits the request flow to the cell OLT device, and after the OLT device identifies the application UID, the flow is guided to a dedicated guarantee channel.

[0116] The flow in the dedicated channel is transmitted to the cell PON device, and after the PON device detects the service ID, it is separated from the ordinary flow and transmitted through the physically connected OTN terminal device.

[0117] The OTN terminal device transmits the flow to the urban computing room at high speed and low latency through an exclusive wavelength division transmission channel, and completes the end-to-end transmission of data.

[0118] The reverse data transmission is reversed according to the above path, and each module maintains a dedicated channel and flow isolation mechanism to ensure low latency and low jitter transmission throughout.

[0119] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be realized by means of software and the necessary general hardware platform, and of course it can also be realized by hardware. Such understanding, the above technical solutions essentially or say the part of the prior art that contributes to the technical solutions can be embodied in the form of software products, which can be stored in a computer readable storage medium such as ROM / RAM, magnetic disk, optical disk, etc., including a plurality of instructions to make a computer device (which can be a personal computer, server, or network device, etc.) execute the method of each embodiment or some part of the embodiment.

[0120] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit it. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A low-latency, low-jitter network transmission system for home users, characterized in that, include: The OTN backbone transmission module is used to construct a dedicated backbone channel for transmitting dedicated transmission traffic using wavelength division multiplexing (WDM) technology, and supports star-shaped distribution access to multiple street PON networks. The PON network access module receives dedicated transmission traffic, physically networks with OTN terminal devices through community-level PON devices, and identifies cloud e-sports service IDs based on traffic detection and separation to separate target traffic from ordinary traffic and obtain target service traffic. The physical networking unit establishes a physical fiber optic connection with the OTN terminal equipment through the community-level PON equipment to form a transmission link and receive exclusive transmission traffic. The traffic detection unit monitors all data flowing through the transmission link in real time based on the transmission link and service feature database, and accurately identifies the unique service ID carried by the target service. The specific steps for accurately identifying the unique business ID carried by the target business are as follows: A real-time data capture mechanism is established for the transmission link. All data frames flowing through the link are completely copied to the detection channel through link layer mirroring to form the raw data stream to be analyzed. Based on the original data stream, the target business ID feature template in the business feature library is called, and the header field of the data frame is parsed byte by byte to extract potential business identification information and obtain the identification field to be verified. The field to be verified is hashed and compared with the pre-set exclusive business ID in the business feature library to determine whether the field matching degree exceeds the threshold. If it does, it is determined to be the exclusive business ID carried by the target business, thus completing accurate identification. The traffic separation unit performs traffic splitting operations in the transmission link, isolating the traffic carrying the target service ID from ordinary home network traffic, and directing it separately to a dedicated transmission path to output the target service traffic; The OLT bandwidth guarantee module identifies the application UID in the target service traffic based on traffic slicing technology, allocates a dedicated guarantee channel for it, and obtains low jitter traffic. The dedicated port module for the home gateway enables independent transmission of traffic within the home based on the low-jitter traffic and the independent service port of the new version of the optical modem, physically isolating the independent service port from the TV port and the ordinary network port; The thin client direct connection module receives low-latency, low-jitter traffic through an independent service port. The thin client is pre-bound to the MAC address and application UID, and can automatically send access requests after powering on without additional configuration, quickly connecting to the target business platform.

2. The low-latency, low-jitter network transmission system for home users according to claim 1, characterized in that, The OTN backbone transmission module includes: A wavelength division multiplexing (WDM) transmission unit is used to divide optical signal channels of different wavelengths using wavelength division multiplexing technology to construct physically isolated dedicated backbone transmission paths. The optical layer processing unit compensates for the attenuation of the optical signal during transmission through the built-in optical amplification module and corrects signal distortion with the help of the dispersion compensation component to obtain a stable and exclusive backbone transmission path. The star access unit establishes optical fiber connections with the PON networks of multiple streets through OTN terminal equipment according to the stable dedicated backbone transmission path, forming a star distribution architecture and extending backbone channel resources to street-level access nodes. The computing power room docking unit connects to the distributed access nodes and aggregates the service traffic of the PON networks of each street through the backbone optical fiber, directly transmitting it to the optical access equipment of the city's computing power room. The feedback data from the computing power room is distributed to the corresponding street through the star access unit, completing the end-to-end exclusive transmission closed loop and forming a complete link.

3. The low-latency, low-jitter network transmission system for home users according to claim 2, characterized in that, The specific steps for constructing a dedicated backbone transmission path in a wavelength division multiplexing (WDM) transmission unit are as follows: Perform link preprocessing on the transmission optical fiber to output a clean optical fiber link; Based on the clean fiber optic link, select wavelength division multiplexing equipment, plan wavelength resources according to service bandwidth requirements, allocate dedicated sub-wavelengths for target services, and output wavelength division multiplexing equipment configuration parameters. The device configuration parameters are loaded into the wavelength division multiplexing device. The device generates an optical carrier through an optical signal generator, modulates the home user's service data onto the dedicated optical carrier, forms a specific wavelength optical signal that carries the service data, and outputs a modulated dedicated wavelength optical signal. A dedicated wavelength optical signal is injected into a clean fiber optic link, and the optical signal is integrated with other wavelength optical signals through a wavelength division multiplexing device and transmitted synchronously, thus constructing a physically isolated exclusive backbone transmission path.

4. The low-latency, low-jitter network transmission system for home users according to claim 1, characterized in that, The OLT bandwidth guarantee module includes: The application UID identification unit extracts the application UID from the traffic based on the target business traffic and the application feature library; The traffic slicing unit divides the physical bandwidth of the OLT device into multiple logically isolated virtual channels according to the traffic slicing technology, and binds a dedicated virtual channel to each identified application UID. The channel stability enhancement unit suppresses traffic fluctuations within the dedicated virtual channel through a dynamic bandwidth adjustment mechanism, while also shielding other services from resource usage requests to the channel, ensuring smooth transmission of target service traffic within the dedicated channel and outputting low-jitter traffic.

5. A low-latency, low-jitter network transmission system for home users according to claim 4, characterized in that, The specific steps for binding a dedicated virtual channel within a traffic slicing unit are as follows: Traffic slicing technology is used to pool the physical bandwidth of OLT devices. Based on the bandwidth requirements of the target service, the resource quota of the virtual channel is calculated, and multiple independent logical bandwidth intervals are divided to form an allocable virtual channel resource pool. The list of identified application UIDs is retrieved from the virtual channel resource pool, a corresponding logical bandwidth range is allocated to each application UID, and the application UID is associated with the specified virtual channel through port mapping rules. The association between the application UID and the virtual channel is written into the forwarding rule table of the OLT device. When traffic with the application UID enters the OLT, the device automatically directs the traffic to the bound dedicated virtual channel according to the forwarding rules.

6. A low-latency, low-jitter network transmission system for home users according to claim 1, characterized in that, The dedicated port module for the home gateway includes: The port isolation unit, based on the hardware design of the new version of the optical modem, physically separates the independent service port from the TV port and the ordinary network port, forming independent transmission lines that do not interfere with each other. The traffic-directed access unit directs low-jitter traffic to an independent service port based on the optical modem's built-in routing policy and independent transmission lines. The transmission protection unit monitors the low-jitter traffic transmitted through the independent service port in real time, shields interference signals from other ports, and optimizes signal transmission parameters to ensure low-latency and low-jitter traffic transmission within the home.

7. A low-latency, low-jitter network transmission system for home users according to claim 1, characterized in that, The thin client direct connection module includes: The identity information binding unit pre-binds the device's unique MAC address with the application UID of the target business to form a unique identity recognition combination; The traffic receiving adaptation unit receives low-latency, low-jitter traffic through an independent service port and adapts to the traffic transmission format. The automatic access request unit automatically retrieves the pre-bound identity recognition combination and generates an access request containing the MAC address and application UID after the thin client is powered on, without any additional configuration. The system quickly connects to the response unit, receives access requests, receives authentication feedback from the target business platform, completes link establishment and session negotiation, and enables thin clients to directly access the target business platform.

8. A low-latency, low-jitter network transmission method for home users, comprising employing a low-latency, low-jitter network transmission system for home users as described in any one of claims 1 to 7, characterized in that, The transmission method includes: S1: It adopts wavelength division multiplexing (WDM) transmission technology to build a dedicated backbone channel for transmitting dedicated transmission traffic, and supports star-shaped distribution access to multiple street PON networks. S2: Receive exclusive transmission traffic, physically network with OTN terminal equipment through community-level PON equipment, identify cloud e-sports service ID based on traffic detection and separation, separate target traffic from ordinary traffic, and obtain target service traffic; S3: Identify the application UID in the target service traffic based on traffic slicing technology, allocate a dedicated protection channel for it, and obtain low jitter traffic; S4: Based on the low jitter traffic and the independent service port of the new version of the optical modem, perform independent transmission of traffic within the home, and physically isolate the independent service port from the TV port and the ordinary network port; S5: Receives low-latency, low-jitter traffic through an independent service port. Thin clients are pre-bound to MAC addresses and application UIDs, and can automatically send access requests after power-on without additional configuration, enabling quick access to the target business platform.

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