CN113364639B - Method, system and device for switching transmission links of small station - Google Patents
Method, system and device for switching transmission links of small station Download PDFInfo
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- CN113364639B CN113364639B CN202010137886.XA CN202010137886A CN113364639B CN 113364639 B CN113364639 B CN 113364639B CN 202010137886 A CN202010137886 A CN 202010137886A CN 113364639 B CN113364639 B CN 113364639B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/12—Network monitoring probes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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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
Abstract
The invention discloses a method, a system and a device for switching transmission links of a small station, wherein the small station of the embodiment of the invention is provided with an air interface link and a direct network interface link between the small station and CPE, and one of the air interface link and the direct network interface link is selected for data transmission; the small station performs link detection on the transmission link of the current return data, and when detecting that the transmission link of the current return data fails, the small station switches the transmission link to another transmission link for transmission. Here, performing the switching of the transmission link includes: and setting a route enabling switch of an air interface link between the CPE and the direct networking interface link and a route enabling switch of the direct networking interface link respectively, wherein the on/off of the enabling switch of the transmission link is adopted. The link detection is performed by adopting an internet packet detector (ping) mode. Therefore, the embodiment of the invention can rapidly switch between the direct network port link and the air port link of the small station, and improves the efficiency of returning data.
Description
Technical Field
The present invention relates to network communication technologies, and in particular, to a method, a system, and an apparatus for switching transmission links of a small station.
Background
In implementing a group call service of a Long Term Evolution (LTE) communication system, a device named LTE trunked small station, hereinafter referred to as a small station, is included. The small station is an integrated movable single base station, integrates a base station, a core network and a business software service unit, and can independently operate and provide LTE broadband trunking business. Besides being capable of being used independently, the small station can be connected with a broadband large network through different types of transmission links, such as a fourth-generation (4G) public network operator network, a satellite transmission link, a wireless Mesh network (Mesh) and the like, so as to realize interconnection and interworking between the small station and the large network. When the small station is connected with the backhaul network, the small station can be directly connected through a network port, and interaction can also be performed through an air port directly connected with Customer Premises Equipment (CPE) of the network. The data is returned through the air interface, so that coverage extension of a return network comprising the small station is facilitated, and the small station is deployed in severe environments such as the field and the like, and can perform data return through wireless coverage; the small station is returned through the wired link directly connected with the network port, so that the reliability is higher, but certain requirements are met for peripheral transmission equipment.
Because the portable mobility of the small station is strong, when the small station works in the open air, data can be transmitted back to a service server deployed in a fixed network through CPE of the air interface access small station; when the small station and the CPE are deployed together and are close in distance, for example, the small station and the CPE are commonly installed on various special vehicles (for example, fire engines), serious interference between the small station and the CPE on an air interface link is caused, air interface performance is deteriorated, the data return rate is reduced, and the use safety of equipment is even affected.
Because the data backhaul of the small station can be directly connected through the network port link of the small station, and can also be remotely connected through the air port link between CPEs (customer premise equipment) accessing the network, in order to solve the problems, the small station needs to be switched between the air port link and the network port link in different application scenes, so that the data backhaul can be normally performed. However, the data forwarding is completed through the network port link and the routing table at the side of the small station is required to be configured, the routing of the small station is completed through the air port link, the routing configuration modes of the network port link and the routing table are completely different, and the switching of different transmission links cannot be performed through the mode of configuring the association relation of the main link and the standby link.
Therefore, when the distance between the small station and the network CPE is relatively short, the mutual interference between the CPE of the air interface link causes the quality of the returned data to be drastically reduced, but the data return rate is reduced, the error code is even interrupted because the switching of different transmission links cannot be performed in a mode of configuring the association relation of the main link and the standby link, and the returned data of the network interface link cannot be quickly switched.
Disclosure of Invention
In view of this, the embodiment of the invention provides a method for switching transmission links of a small station, which can quickly switch between a direct network port link and an air port link of the small station, thereby improving the efficiency of returning data.
The embodiment of the invention also provides a transmission link switching system of the small station, which can rapidly switch between the direct network port link and the air port link of the small station and improve the efficiency of returning data.
The embodiment of the invention also provides a transmission link switching device of the small station, which can rapidly switch between the direct network port link and the air port link of the small station and improve the efficiency of returning data.
The embodiment of the invention is realized as follows:
a transmission link switching method of a small station, comprising:
the small station sets an air interface link with Customer Premise Equipment (CPE) and sets a direct networking interface link;
the small station selects one of an air interface link and a direct networking interface link between the small station and the CPE to carry out data return;
the small station performs link detection on the transmission link of the current return data, and when detecting that the transmission link of the current return data fails, the small station switches the transmission link to another transmission link for transmission.
The link detection is performed by adopting an Internet packet detector ping mode.
The switching of the transmission link comprises the following steps:
and the small station is respectively provided with a route enabling switch of an air interface link and a route enabling switch of a direct network interface link between the small station and the CPE, and the switching of the transmission link is realized by adopting the enabling control of the enabling switch of the transmission link.
The setting an air interface link between the CPE and the CPE comprises the following steps:
after the CPE is powered on and connected to the core network, the small station configures the back route of the CPE;
the selecting one of the two to carry out data feedback comprises the following steps:
the small station returns data through an air interface link based on the post route configured with the CPE;
when detecting that the transmission link of the current backhaul data fails, switching the transmission link to another transmission link for transmission includes:
interference occurs between the small station and the CPE, and the CPE is powered off;
the small station detects the open link circuit by adopting a ping mode, and the open link is de-enabled by adopting a set enabling switch corresponding to the post-CPE route;
the small station adopts a route enabling switch corresponding to the direct networking port link to enable the route of the direct networking port link, adopts a ping mode to detect the direct networking port link, and adopts the direct networking port link to return data after the detection.
A transmission link switching system for a small station, comprising: a small station, a CPE, and a backhaul network, wherein,
the small station is used for setting an air interface link between the small station and the CPE and setting a direct networking interface link between the small station and the backhaul network; selecting one of an air interface link and a direct networking interface link between the CPE and the CPE for data transmission; carrying out link detection on a transmission link of the current return data, and switching the transmission link to another transmission link for transmission when detecting that the transmission link of the current return data fails;
CPE, which is used for the air interface link between the small station and the network;
and the backhaul network is used for accessing the network through an air interface link between the small station and the CPE or accessing the network through a direct networking interface link of the small station.
The small station is also used for detecting the link by adopting a ping mode.
The small station is further configured to perform handover of a transmission link, including:
and setting a route enabling switch of an air interface link and a route enabling switch of a direct networking interface link between the CPE and the CPE respectively, and adopting the enabling control of the enabling switch of the set transmission link to realize the switching of the transmission link.
A transmission link switching apparatus of a small station, comprising: a setting unit, a selecting unit, a detecting unit and a switching unit, wherein,
the setting unit is used for setting an air interface link between the setting unit and the CPE and setting a direct networking interface link between the setting unit and the backhaul network;
the selecting unit is used for selecting one of an air interface link and a direct networking interface link between the CPE and the CPE to carry out data return;
the detection unit is used for carrying out link detection on the transmission link of the current return data, and when detecting that the transmission link of the current return data fails, the detection unit instructs the switching unit to switch the transmission link to another transmission link for transmission;
and the switching unit is used for switching the transmission link under the control of the detection unit.
The detection unit is also used for detecting the link by adopting a ping mode.
The switching unit is further configured to perform switching of the transmission link, including:
and setting a route enabling switch of an air interface link and a route enabling switch of a direct networking interface link between the CPE and the CPE respectively, and adopting the enabling control of the enabling switch of the set transmission link to realize the switching of the transmission link.
As seen above, the small station of the embodiment of the present invention sets an air interface link and a direct network interface link between the small station and the CPE, and selects one of them to transmit data back; the small station performs link detection on the transmission link of the current return data, and when detecting that the transmission link of the current return data fails, the small station switches the transmission link to another transmission link for transmission. Here, performing the switching of the transmission link includes: and setting a route enabling switch of an air interface link between the CPE and the direct networking interface link and a route enabling switch of the direct networking interface link respectively, wherein the on/off of the enabling switch of the transmission link is adopted. The link detection is performed by adopting an internet packet detector (ping) mode. Thus, the embodiment of the invention can realize the automatic switching between the direct network port link and the air port link of the small station. Therefore, the embodiment of the invention can rapidly switch between the direct network port link and the air port link of the small station, and improves the efficiency of returning data.
Drawings
Fig. 1 is a flowchart of a method for switching a transmission link of a small station according to an embodiment of the present invention;
fig. 2 is a schematic diagram of network networking for switching transmission links of a small station according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an example of a switching process of a transmission link by power-on and power-off linkage of a CPE according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a transmission link switching system of a small station according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a transmission link switching apparatus of a small station according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below by referring to the accompanying drawings and examples.
In order to rapidly switch between the direct network port link and the air port link of the small station, the embodiment of the invention improves the data returning efficiency, and the small station sets the air port link and the direct network port link between the small station and the CPE, and selects one of them to carry out data returning; the small station performs link detection on the transmission link of the current return data, and when detecting that the transmission link of the current return data fails, the small station switches the transmission link to another transmission link for transmission. Here, performing the switching of the transmission link includes: and setting a route enabling switch of an air interface link between the CPE and the direct networking interface link and a route enabling switch of the direct networking interface link respectively, wherein the on/off of the enabling switch of the transmission link is adopted. The link detection is performed by adopting a ping mode.
Thus, the embodiment of the invention can realize the automatic switching between the direct network port link and the air port link of the small station.
Fig. 1 is a flowchart of a method for switching a transmission link of a small station according to an embodiment of the present invention, which specifically includes the steps of:
step 101, setting an air interface link between a small station and a CPE and setting a direct networking interface link;
step 102, the small station selects one of an air interface link and a direct networking interface link between the small station and the CPE to carry out data return;
step 103, the small station performs link detection on the transmission link of the current return data, and when detecting that the transmission link of the current return data fails, performs switching of the transmission link, and switches to another transmission link for transmission.
In the method, the link detection is performed by adopting a ping mode.
In the method, the switching of the transmission link includes:
and the small station is respectively provided with a route enabling switch of an air interface link and a route enabling switch of a direct network interface link between the small station and the CPE, and the switching of the transmission link is realized by adopting the enabling control of the enabling switch of the transmission link.
In the method, the setting an air interface link with the CPE comprises:
after the CPE is powered on and connected to the core network, the small station configures the back route of the CPE;
the selecting one of the two to carry out data feedback comprises the following steps: the small station returns data through an air interface link based on the post route configured with the CPE;
when detecting that the transmission link of the current backhaul data fails, switching the transmission link to another transmission link for transmission includes:
interference occurs between the small station and the CPE, and the CPE is powered off;
the small station detects the open link circuit by adopting a ping mode, and the open link is de-enabled by adopting a set enabling switch corresponding to the post-CPE route;
the small station adopts a route enabling switch corresponding to the direct networking port link to enable the route of the direct networking port link, adopts a ping mode to detect the direct networking port link, and adopts the direct networking port link to return data after the detection.
In the embodiment of the invention, when the distance between the small station and the CPE is short, the switching of the transmission link can be performed by switching off the CPE. When the CPE is powered off, the CPE is offline, but a backhaul data receiving entity, such as a User Equipment (UE), in a core network to which the CPE is connected cannot quickly acquire the CPE offline state, and at this time, the routing configuration is still effective after the CPE in the cell station is related, which may affect a transmission link for data backhaul through the CPE. The embodiment of the invention solves the problems through the switching control of the small station to the transmission link.
The embodiment of the invention increases the detection of the transmission link from the small station to the routing/switching equipment of the transmission link by controlling the CPE to access and leave the network by powering on and powering off the CPE, and simultaneously combines the detection capability of the transmission link of the small station, and selects the transmission link based on the link detection result, thereby solving the problem of performance deterioration caused by co-deployment when the small station carries out data backhaul through the CPE.
When the CPE is powered on and network-connected successfully, the small station serves as an integrated LTE wireless device, and when the return data of the small station arrives, the return data forwarding is carried out by default through the LTE wireless side. Thus, the CPE will check if there are UEs in the core network associated with it based on the destination address field. In this scenario, the small station may perform data backhaul through the CPE, so that a post-CPE route may be configured in the small station, and after associating the forwarding destination address field with the CPE International Mobile Subscriber Identity (IMSI), the forwarding destination address field is stored in the post-route table as a route of backhaul data. And after the small station inquires the route of the CPE in the post-route table, returning the returned data from the CPE. When the small station can not inquire the post route of the CPE, the set priority route table is checked to obtain a direct network port link, and data is transmitted from the direct network port link. This approach is called the priority approach of the backhaul data of the small station.
In the embodiment of the invention, the small station adopts a ping mode for carrying out link detection on the transmission link of the current return data, the ping detection mode of an air interface link and the ping detection mode of direct network interface connection can be added in the small station, the ping detection mode of the air interface link and an enabling switch of the air interface link are bound, and the ping detection mode of the direct network interface link and the enabling switch of the direct network interface link are bound. When the CPE is powered on and is successfully connected to the network, the air interface link can be detected in a ping detection mode of the air interface link, if the detection is passed, the air interface link is enabled, and data is returned through the air interface link; when the CPE is powered down, the air interface link is detected by adopting a ping detection mode of the air interface link, the detection is not passed, the direct network interface link is detected by adopting a ping detection mode of the direct network interface link, the air interface link is enabled, the direct network interface link is switched to, and the data is returned through the direct network interface link.
Fig. 2 is a schematic diagram of network networking for switching transmission links of a small station according to an embodiment of the present invention, where the small station may perform data backhaul by accessing CPE under the networking of backhaul data, and may also perform data backhaul by a network port of the small station itself, where the networking of backhaul data includes:
link 1, the small station defaults to access CPE through LTE air interface, sets air interface link, defaults to carry out data back transmission through CPE accessing network;
a link 2, wherein the small station provides an external direct network port, a direct network port link is arranged, and data return can be carried out through the direct network port link;
when the small station keeps a certain distance from the CPE, the data transmission is carried out by the optimized link 1;
when the distance between the small station and the CPE is relatively short and mutual interference exists, the CPE is closed to avoid the interference, and the small station switches the transmission link to be switched to the direct network port link for transmission in time.
Fig. 3 is a schematic diagram of an example of a switching process of a transmission link by power-on and power-off linkage of a CPE according to an embodiment of the present invention. In order to solve the problem of mutual interference under the condition that the distance between the small station and the CPE is relatively close, consider that the CPE is powered off when the scene is lowered, the broken link information of the current transmission link is obtained through a ping detection mode after the power is off, and the broken link information is automatically switched to a direct networking port link to carry out data feedback. The specific process is as follows:
the first step, the small station is deployed and started separately from the CPE;
secondly, CPE enters the network, and the air interface link returns data to take effect;
thirdly, according to the priority base station, the small station side is preferentially selected and then the route mode is adopted to carry out data returning, and a ping detection mode is started to carry out the detection of an air interface link;
fourthly, when the small station is close to the CPE deployment, cutting off the CPE power supply;
fifth step, after the CPE is powered off, the network is disconnected, at the moment, the detection failure is caused when the ping detection mode is adopted to detect the air interface link, and the small station enables the post-route configuration of the CPE;
and sixthly, after the CPE is configured, the route fails, and the returned data is forwarded from the direct network port link of the small station.
Fig. 4 is a schematic diagram of a transmission link switching system of a small station according to an embodiment of the present invention, including: a small station, a CPE, and a backhaul network, wherein,
the small station is used for setting an air interface link between the small station and the CPE and setting a direct networking interface link between the small station and the backhaul network; selecting one of an air interface link and a direct networking interface link between the CPE and the CPE for data transmission; carrying out link detection on a transmission link of the current return data, and switching the transmission link to another transmission link for transmission when detecting that the transmission link of the current return data fails;
CPE, which is used for the air interface link between the small station and the network;
and the backhaul network is used for accessing the network through an air interface link between the small station and the CPE or accessing the network through a direct networking interface link of the small station.
In this system, the small station is also used for the link detection by using a ping mode.
In the system, the small station is further configured to perform handover of the transmission link, including:
and setting a route enabling switch of an air interface link and a route enabling switch of a direct networking interface link between the CPE and the CPE respectively, and adopting the enabling control of the enabling switch of the set transmission link to realize the switching of the transmission link.
Fig. 5 is a schematic diagram of a transmission link switching apparatus of a small station according to an embodiment of the present invention, where the apparatus is a small station, and includes: a setting unit, a selecting unit, a detecting unit and a switching unit, wherein,
the setting unit is used for setting an air interface link between the setting unit and the CPE and setting a direct networking interface link between the setting unit and the backhaul network;
the selecting unit is used for selecting one of an air interface link and a direct networking interface link between the CPE and the CPE to carry out data return;
the detection unit is used for carrying out link detection on the transmission link of the current return data, and when detecting that the transmission link of the current return data fails, the detection unit instructs the switching unit to switch the transmission link to another transmission link for transmission;
and the switching unit is used for switching the transmission link under the control of the detection unit.
In the device, the detection unit is further used for detecting the link by adopting a ping mode.
The switching unit is further configured to perform switching of the transmission link, including:
and setting a route enabling switch of an air interface link and a route enabling switch of a direct networking interface link between the CPE and the CPE respectively, and adopting the enabling control of the enabling switch of the set transmission link to realize the switching of the transmission link.
The embodiment of the invention solves the problem of mutual interference between the CPE power-on and power-off control and the transmission link switching control of the small station under the co-deployment, and the small station increases the ping detection mode of the transmission link, and enables the routing configuration after the CPE on the basis of not changing the protocol so as to ensure that the data is switched to the direct networking port link for returning.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.
Claims (7)
1. A method for switching transmission links of a small station, wherein the small station is a device of a long term evolution LTE cluster small station, comprising:
the small station sets an air interface link with Customer Premise Equipment (CPE) and sets a direct networking interface link;
the small station selects one of an air interface link and a direct networking interface link between the small station and the CPE to carry out data feedback, wherein the direct networking interface link is selected when the small station and the CPE have interference, and the air interface link between the small station and the CPE is selected when the small station and the CPE do not have interference;
the small station carries out link detection on the transmission link of the current return data, and when detecting that the transmission link of the current return data fails, the small station switches the transmission link to another transmission link for transmission;
the switching of the transmission link comprises the following steps:
and the small station is respectively provided with a route enabling switch of an air interface link and a route enabling switch of a direct network interface link between the small station and the CPE, and the switching of the transmission link is realized by adopting the enabling control of the enabling switch of the transmission link.
2. The method of claim 1, wherein the link detection is performed using an internet packet probe ping mode.
3. The method of claim 1, wherein setting the air interface link with the CPE comprises:
after the CPE is powered on and connected to the core network, the small station configures the back route of the CPE;
the selecting one of the two to carry out data feedback comprises the following steps:
the small station returns data through an air interface link based on the post route configured with the CPE;
when detecting that the transmission link of the current backhaul data fails, switching the transmission link to another transmission link for transmission includes:
interference occurs between the small station and the CPE, and the CPE is powered off;
the small station detects the open link circuit by adopting a ping mode, and the open link is de-enabled by adopting a set enabling switch corresponding to the post-CPE route;
the small station adopts a route enabling switch corresponding to the direct networking port link to enable the route of the direct networking port link, adopts a ping mode to detect the direct networking port link, and adopts the direct networking port link to return data after the detection.
4. A transmission link switching system for a small station, comprising: a small station, CPE and a backhaul network, wherein the small station is equipment of a long term evolution LTE cluster small station,
the small station is used for setting an air interface link between the small station and the CPE and setting a direct networking interface link between the small station and the backhaul network; selecting one of an air interface link and a direct networking interface link between the small station and the CPE for data feedback, wherein the direct networking interface link is selected when the small station and the CPE have interference, and the air interface link between the small station and the CPE is selected when the small station and the CPE do not have interference; carrying out link detection on a transmission link of the current return data, and switching the transmission link to another transmission link for transmission when detecting that the transmission link of the current return data fails;
CPE, which is used for the air interface link between the small station and the network;
the backhaul network is used for accessing the network through an air interface link between the small station and the CPE or accessing the network through a direct networking interface link of the small station;
the small station is further configured to perform handover of a transmission link, including:
and setting a route enabling switch of an air interface link and a route enabling switch of a direct networking interface link between the CPE and the CPE respectively, and adopting the enabling control of the enabling switch of the set transmission link to realize the switching of the transmission link.
5. The system of claim 4, wherein,
the small station is also used for detecting the link by adopting a ping mode.
6. A transmission link switching apparatus of a small station, comprising: a setting unit, a selecting unit, a detecting unit and a switching unit, wherein,
the setting unit is used for setting an air interface link between the setting unit and the CPE and setting a direct networking interface link between the setting unit and the backhaul network;
a selecting unit, configured to select one of an air interface link and a direct network interface link between the small station and the CPE for data backhaul, where the direct network interface link is selected when there is interference between the small station and the CPE, and the air interface link between the small station and the CPE is selected when there is no interference between the small station and the CPE;
the detection unit is used for carrying out link detection on the transmission link of the current return data, and when detecting that the transmission link of the current return data fails, the detection unit instructs the switching unit to switch the transmission link to another transmission link for transmission;
the switching unit is used for switching the transmission link under the control of the detection unit;
the switching unit is further configured to perform switching of the transmission link, including:
and setting a route enabling switch of an air interface link and a route enabling switch of a direct networking interface link between the CPE and the CPE respectively, and adopting the enabling control of the enabling switch of the set transmission link to realize the switching of the transmission link.
7. The apparatus of claim 6, wherein the detection unit is further configured to detect the link by a ping mode.
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