CN116761151B - Rail transit network switching method, device, equipment and medium - Google Patents

Rail transit network switching method, device, equipment and medium Download PDF

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Publication number
CN116761151B
CN116761151B CN202311041162.5A CN202311041162A CN116761151B CN 116761151 B CN116761151 B CN 116761151B CN 202311041162 A CN202311041162 A CN 202311041162A CN 116761151 B CN116761151 B CN 116761151B
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Prior art keywords
resources
target cell
resource
confirming
reserved
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CN116761151A (en
Inventor
王东锋
罗正兴
裴晓东
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Shenzhen Qianhai Zhongdian Huian Technology Co ltd
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Shenzhen Qianhai Zhongdian Huian Technology Co ltd
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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
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/42—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for mass transport vehicles, e.g. buses, trains or aircraft
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0009—Control or signalling for completing the hand-off for a plurality of users or terminals, e.g. group communication or moving wireless networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses a rail transit network switching method, a device, equipment and a medium, wherein the method comprises the steps of confirming the number of terminal equipment with the current moving speed exceeding a preset speed according to communication data of the terminal equipment of a cell; when the number of the terminal devices is larger than the preset number, confirming a next target cell of the terminal device of the mobile user according to the mobile information of the terminal device of the mobile user; confirming basic reserved resources switched to a target cell according to the number of the terminal devices; and informing the target cell to perform handover preparation according to the basic reserved resources. The rail transit network switching method achieves the effects of timely network switching of high-speed rail transit and good user Internet surfing experience.

Description

Rail transit network switching method, device, equipment and medium
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a rail transit network switching method, a device, equipment and a medium.
Background
Along with the development of society, people have stronger demands for communication flow, especially application scenes such as subways and high-speed rails, and demands for high-definition video call and mobile phone flow on subways and high-speed rails are stronger, and experience requirements are higher. However, the concurrent switching performance of the terminal equipment of the high-speed mobile user in the 4G and 5G communications is reduced, for example, the VoLTE high-definition video call on the high-speed rail is blocked, and the problem that the switching time is long and the switching failure is easy to cause when a large number of users switch simultaneously in the high-speed moving process is mainly caused, and the situation leads to poor communication flow experience on the high-speed rail traffic. In order to solve this problem, it is necessary to provide a network switching method suitable for high-speed rail traffic.
Disclosure of Invention
The embodiment of the invention provides a method, a device, equipment and a medium for switching a rail transit network, which achieve the effects of timely switching the network of high-speed rail transit and good user Internet surfing experience.
According to an aspect of the present invention, there is provided a rail transit network switching method, including:
confirming the number of terminal devices with the current moving speed exceeding the preset speed according to the communication data of the terminal devices in the cell;
when the number of the terminal devices is larger than the preset number, confirming a next target cell of the terminal device of the mobile user according to the mobile information of the terminal device of the mobile user;
confirming basic reserved resources switched to a target cell according to the number of the terminal devices;
and informing the target cell to perform handover preparation according to the basic reserved resources.
Further, the notifying the target cell of handover preparation according to the reserved base resources includes:
judging whether the idle resources of the target cell are larger than the basic reserved resources or not;
and if the idle resources are larger than the reserved resources, occupying the idle resources before switching according to the reserved resources.
Further, if the idle resource is smaller than the reserved base resource, the notifying the target cell to perform handover preparation according to the reserved base resource includes:
Confirming schedulable resources according to a preset scheduling algorithm;
and if the sum of the schedulable resources and the idle resources is larger than the basic reserved resources, occupying the schedulable resources before switching according to the difference between the basic reserved resources and the idle resources.
Further, the schedulable resources include unnecessary resources acquired from other terminal devices of the target cell.
Further, the mobile information includes the number of terminal devices of the high-speed mobile user, the distance between the current position and the target cell, the moving direction and the moving speed, and the step of confirming the next target cell of the terminal device of the mobile user according to the mobile information of the terminal device of the mobile user includes: and confirming the next target cell of the terminal equipment of the mobile user in the target cells according to the number of the terminal equipment of the mobile user, the distance between the current position and the target cell, the moving direction, the moving speed and the positions of the target cells.
Further, the determining the reserved resources to be switched to the base of the target cell according to the number of the terminal devices includes:
judging the service grade of the current rail transit;
and confirming the basic reserved resources switched to the target cell according to the number of the terminal devices and the service level.
Further, the service class and the underlying reserved resources are positively correlated.
According to an aspect of the present invention, there is provided a rail transit network switching apparatus including:
the quantity confirmation module is used for confirming the quantity of the terminal equipment with the current moving speed exceeding the preset speed according to the communication data of the terminal equipment of the cell;
the cell confirming module is used for confirming the next target cell of the terminal equipment of the mobile user according to the mobile information of the terminal equipment of the mobile user when the number of the terminal equipment is larger than the preset number;
the resource reservation module is used for confirming the basic reserved resources switched to the target cell according to the number of the terminal devices;
and the switching preparation module is used for informing the target cell to perform switching preparation according to the reserved basic resources.
According to another aspect of the present invention, there is provided a computer apparatus comprising:
one or more processors;
a memory for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement any of the rail transit network switching methods described above.
According to another aspect of the present invention, there is provided a storage medium having stored thereon a computer program, characterized in that the program, when executed by a processor, implements any of the rail transit network switching methods described above.
The rail transit network switching of the embodiment confirms the number of terminal devices with the current moving speed exceeding the preset speed according to the communication data of the terminal devices of the cell; when the number of the terminal devices is larger than the preset number, confirming a next target cell of the terminal device of the mobile user according to the mobile information of the terminal device of the mobile user; confirming basic reserved resources switched to a target cell according to the number of the terminal devices; and informing the target cell to perform handover preparation according to the basic reserved resources. The rail transit network switching method can achieve seamless connection of communication and flow requirements when users on the high-speed mobile rail switch between communication cells, and ensures timely and stable network switching of rail transit, and good user Internet surfing experience. When the number of the basic reserved resources is large, the idle resources of the target cell can be pre-locked in advance to increase the reserved resources, and when the idle resources still have insufficient conditions, the reserved resources are further increased by competing for the schedulable resources from other users, so that smooth switching can be ensured and seamless connection of communication and flow requirements can be realized when the terminal equipment of the mobile user of the high-speed rail traffic is switched to the target cell.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a rail transit network switching method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a rail transit network switching method according to a second embodiment of the present invention;
fig. 3 is a schematic diagram of a rail transit network switching device according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a computer device according to a third embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
Fig. 1 is a flowchart of a rail transit network switching method according to an embodiment of the present invention, where the embodiment may be applied to a rail transit network switching device, and the device may be implemented in software and/or hardware, and may be generally integrated in a mobile terminal, an edge device, a computer, or a server, and the embodiment of the present invention is not limited to the type of the mobile terminal, the edge device, the computer, or the server. Accordingly, as shown in fig. 1, the method includes the following operations:
S110, confirming the number of terminal devices with the current moving speed exceeding a preset speed according to the communication data of the terminal devices in the cell;
in this embodiment, the cells are service ranges of the network device, different network devices may have different service ranges, the service ranges between different cells may have overlapping portions, and two cells having overlapping portions are adjacent cells. One cell may have one neighboring cell or may have a plurality of neighboring cells.
In an embodiment, the network device may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.
The communication system formed by the plurality of network devices in this embodiment may be one or more of a global system for mobile communications (global system of mobile communication, GSM) system, a code division multiple access (code division multiple access, CDMA) system, a wideband code division multiple access (wideband code division multiple access, WCDMA) system, a general packet Radio service (general packet Radio service, GPRS), a long term evolution (long term evolution, LTE) system, an LTE frequency division duplex (frequency division duplex, FDD) system, an LTE time division duplex (time division duplex, TDD) system, a long term evolution (advanced long term evolution, LTE-a) system, a New Radio (NR) system, an evolution system of the NR system, an LTE-based access to unlicensed spectrum, LTE-U) system on an unlicensed band, an NR (NR-based access to unlicensed spectrum, NR-U) system on an unlicensed band, a universal mobile communication system (universal mobile telecommunication system, UMTS), a worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication system, a wireless local area network (wireless local area networks, WLAN), a wireless fidelity (wireless fidelity, wiFi), a next generation communication system, or other communication systems. Alternatively, the NR system may also be referred to as a 5G system or 5G network.
In this embodiment, the terminal device may be a mobile phone, a tablet computer, a notebook computer or other mobile communication devices, which is not limited in this embodiment. The communication data in this embodiment may include, but is not limited to, user unique identifier (e.g., IMSI data, IMEI data, MSISDN data) and MR (Measurement Report) data of a terminal device used by a user, where MR data is physical information such as downlink signal strength, quality and the like of a cell where the mobile terminal device periodically reports to a base station, and the base station uploads the downlink physical information reported by the terminal and the uplink physical information collected by itself to a base station controller, and collects and counts the downlink physical information and the uplink physical information.
In this embodiment, the positions of the same terminal device are respectively confirmed at two adjacent times through MR data and the unique identifier of the user of the terminal device, so as to calculate the speed value of each terminal between the adjacent times, compare the speed calculation result with the preset speed, and count the number of terminal devices with the speed calculation result greater than the preset speed, so as to obtain the number of terminal devices with the current moving speed exceeding the preset speed. The preset speed in this embodiment may be 100-200 km, for example 200 km.
S120, when the number of the terminal devices is larger than the preset number, confirming a next target cell of the terminal device of the mobile user according to the mobile information of the terminal device of the mobile user;
In this embodiment, when the number of terminal devices is greater than the preset number, it is indicated that the number of people needing service in rail transit is large, and if switching preparation is not performed in advance, the user communication service experience is poor. Specifically, the mobile information includes the number of terminal devices of the high-speed mobile user, the distance between the current position and the target cell, the moving direction and the moving speed, and the method for confirming the next target cell of the terminal device of the mobile user according to the mobile information of the terminal device of the mobile user includes: and confirming the next target cell of the terminal equipment of the mobile user in the target cells according to the number of the terminal equipment of the mobile user, the distance between the current position and the target cell, the moving direction, the moving speed and the positions of the target cells. Specifically, the target cell may be determined from a plurality of target cells by performing calculation according to the current location of the current cell, the distance between the terminal device and the target cell, the moving direction of the terminal device, and the moving speed of the terminal device.
In an embodiment, three cells 1, 2 and 3 are provided, the three cells are uniformly distributed along the north-south direction of the track, the cell 2 calculates directions D1 and D2 of the user terminal equipment by sampling the signal arrival angles of the terminal equipment serving the user every second based on the multi-antenna technology, the distance vectors L1 and L2 calculate a velocity vector V according to the motion vectors formed by the directions and the distances of different times, and the velocity vector determines whether the user will move to the cell 1 or the cell 3. After the target cell is determined based on the above calculation, the time to handoff may be calculated as Δt= (L3-L2)/V based on the distance vector L2 and the velocity vector V of the motion and the handoff point vector distance L3 from cell 2 to cell 1 (if the next target cell is 1).
S130, confirming basic reserved resources switched to a target cell according to the number of the terminal devices;
in this embodiment, the reserved base resource is a reserved base resource that can normally use mobile network communication after all terminal devices are switched to a target cell according to the number calculation of the terminal devices. Preferably, the basic flow requirement after switching of all terminal devices can be confirmed according to the flow use condition of all terminal devices, the basic communication requirement after switching of all terminal devices can also be confirmed according to the telephone use condition of all terminal devices, and the basic reserved resource is confirmed according to the basic flow requirement and all the basic communication requirements. The reserved base resources in this embodiment may be identified by the base communication requirements and a predetermined percentage of the base traffic, such as 50% -100%.
In an alternative embodiment, the determining the reserved resources to be switched to the target cell according to the number of the terminal devices includes:
judging the service grade of the current rail transit;
and confirming the basic reserved resources switched to the target cell according to the number of the terminal devices and the service level.
Specifically, in one embodiment, the communication service level of the rail transit train number may be preset, for example, the level 1-5, and the higher the level, the higher the traffic of the communication service or the quality of the telephone communication. The service class is positively correlated with the base reserved resource, and the service class is positively correlated with the base communication requirement and the reserved percentage value of the base traffic. For example, a service class of 5 may be used to identify the reserved base resources according to the basic communication requirement and 100% of the basic traffic, a service class of 4 may be used to identify the reserved base resources according to the basic communication requirement and 80% of the basic traffic, and a service class of 3 may be used to identify the reserved base resources according to the basic communication requirement and 60% of the basic traffic. Other grades are similar and will not be described in detail.
And S140, notifying the target cell to perform handover preparation according to the basic reserved resources.
In this embodiment, the resources of the target cell are pre-locked according to the calculated reserved resources, so that smooth switching can be achieved and seamless connection between communication and flow requirements can be achieved when the terminal equipment of the user on the track traffic is switched to the target cell.
Compared with the prior art, the rail transit network switching method provided by the embodiment confirms the number of terminal equipment with the current moving speed exceeding the preset speed according to the communication data of the terminal equipment of the cell; when the number of the terminal devices is larger than the preset number, confirming a next target cell of the terminal device of the mobile user according to the mobile information of the terminal device of the mobile user; confirming basic reserved resources switched to a target cell according to the number of the terminal devices; and informing the target cell to perform handover preparation according to the basic reserved resources. The seamless connection of communication and flow requirements can be realized when the user on the high-speed mobile track switches between communication cells, so that the timely and stable network switching of the track traffic is ensured, and the user surfing experience is good.
Example two
Fig. 2 is a flowchart of a rail transit network switching method according to a second embodiment of the present invention, where the method includes the following operations:
s210, confirming the number of terminal devices with the current moving speed exceeding a preset speed according to the communication data of the terminal devices in the cell;
in this embodiment, the cells are service ranges of the network device, different network devices may have different service ranges, the service ranges between different cells may have overlapping portions, and two cells having overlapping portions are adjacent cells. One cell may have one neighboring cell or may have a plurality of neighboring cells.
In an embodiment, the network device may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.
The communication system formed by the plurality of network devices in this embodiment may be one or more of a global system for mobile communications (global system of mobile communication, GSM) system, a code division multiple access (code division multiple access, CDMA) system, a wideband code division multiple access (wideband code division multiple access, WCDMA) system, a general packet Radio service (general packet Radio service, GPRS), a long term evolution (long term evolution, LTE) system, an LTE frequency division duplex (frequency division duplex, FDD) system, an LTE time division duplex (time division duplex, TDD) system, a long term evolution (advanced long term evolution, LTE-a) system, a New Radio (NR) system, an evolution system of the NR system, an LTE-based access to unlicensed spectrum, LTE-U) system on an unlicensed band, an NR (NR-based access to unlicensed spectrum, NR-U) system on an unlicensed band, a universal mobile communication system (universal mobile telecommunication system, UMTS), a worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication system, a wireless local area network (wireless local area networks, WLAN), a wireless fidelity (wireless fidelity, wiFi), a next generation communication system, or other communication systems. Alternatively, the NR system may also be referred to as a 5G system or 5G network.
In this embodiment, the terminal device may be a mobile phone, a tablet computer, a notebook computer or other mobile communication devices, which is not limited in this embodiment. The communication data in this embodiment may include, but is not limited to, user unique identifier (e.g., IMSI data, IMEI data, MSISDN data) and MR (Measurement Report) data of a terminal device used by a user, where MR data is physical information such as downlink signal strength, quality and the like of a cell where the mobile terminal device periodically reports to a base station, and the base station uploads the downlink physical information reported by the terminal and the uplink physical information collected by itself to a base station controller, and collects and counts the downlink physical information and the uplink physical information.
In this embodiment, the positions of the same terminal device are respectively confirmed at two adjacent times through MR data and the unique identifier of the user of the terminal device, so as to calculate the speed value of each terminal between the adjacent times, compare the speed calculation result with the preset speed, and count the number of terminal devices with the speed calculation result greater than the preset speed, so as to obtain the number of terminal devices with the current moving speed exceeding the preset speed. The preset speed in this embodiment may be 100-200 km, for example 200 km.
S220, when the number of the terminal devices is larger than the preset number, confirming a next target cell of the terminal device of the mobile user according to the mobile information of the terminal device of the mobile user;
In this embodiment, when the number of terminal devices is greater than the preset number, it is indicated that the number of people needing service in rail transit is large, and if switching preparation is not performed in advance, the user communication service experience is poor. Specifically, the mobile information includes the number of terminal devices of the high-speed mobile user, the distance between the current position and the target cell, the moving direction and the moving speed, and the method for confirming the next target cell of the terminal device of the mobile user according to the mobile information of the terminal device of the mobile user includes: and confirming the next target cell of the terminal equipment of the mobile user in the target cells according to the number of the terminal equipment of the mobile user, the distance between the current position and the target cell, the moving direction, the moving speed and the positions of the target cells. Specifically, the target cell may be determined from a plurality of target cells by performing calculation according to the current location of the current cell, the distance between the terminal device and the target cell, the moving direction of the terminal device, and the moving speed of the terminal device.
S230, confirming the basic reserved resources switched to the target cell according to the number of the terminal devices;
In this embodiment, the reserved base resource is a reserved base resource that can normally use mobile network communication after all terminal devices are switched to a target cell according to the number calculation of the terminal devices. Preferably, the basic flow requirement after switching of all terminal devices can be confirmed according to the flow use condition of all terminal devices, the basic communication requirement after switching of all terminal devices can also be confirmed according to the telephone use condition of all terminal devices, and the basic reserved resource is confirmed according to the basic flow requirement and all the basic communication requirements. The reserved base resources in this embodiment may be identified by the base communication requirements and a predetermined percentage of the base traffic, such as 50% -100%. In one embodiment, if each user needs to reserve 2Kbit resources, the reserved resources of N users are g=n×2kbit.
In an alternative embodiment, the determining the reserved resources to be switched to the target cell according to the number of the terminal devices includes:
judging the service grade of the current rail transit;
and confirming the basic reserved resources switched to the target cell according to the number of the terminal devices and the service level.
Specifically, in one embodiment, the communication service level of the rail transit train number may be preset, for example, the level 1-5, and the higher the level, the higher the traffic of the communication service or the quality of the telephone communication. The service class is positively correlated with the base reserved resource, and the service class is positively correlated with the base communication requirement and the reserved percentage value of the base traffic. For example, a service class of 5 may be used to identify the reserved base resources according to the basic communication requirement and 100% of the basic traffic, a service class of 4 may be used to identify the reserved base resources according to the basic communication requirement and 80% of the basic traffic, and a service class of 3 may be used to identify the reserved base resources according to the basic communication requirement and 60% of the basic traffic. Other grades are similar and will not be described in detail.
S240, judging whether the idle resources of the target cell are larger than the basic reserved resources;
s250, if the idle resources are larger than the reserved resources, the idle resources of the target cell are occupied before switching according to the reserved resources.
And S260, if the idle resources are smaller than the reserved resources, confirming the schedulable resources according to a preset scheduling algorithm.
In this embodiment, the schedulable resource includes a non-basic communication resource obtained from other users in the target cell.
S270 determining whether the sum of the schedulable resources and the idle resources of the target cell is greater than the basic reserved resource,
s280, if the sum of the schedulable resources and the idle resources is larger than the basic reserved resources, the schedulable resources of the target cell are occupied before switching according to the difference of the basic reserved resources and the idle resources.
In one embodiment, the schedulable resources may be calculated and validated according to a predetermined scheduling algorithm. The target cell performs switching preparation according to the reserved resources, the idle resources and the schedulable resources, so as to ensure the communication service quality of switching to the target cell. In an embodiment, when the minimum reserved resource required by the target cell to receive the information transmitted by the serving cell is G, the current idle resource R is judged to be less than G, and then a conventional scheduling algorithm is triggered, and the terminal device of the existing user providing the service is subjected to speed reduction processing, so that resources are vacated, and the reserved resource R is improved.
In this embodiment, when the number of basic reserved resources is larger, the idle resources of the target cell may be pre-locked in advance to increase the reserved resources, and when the idle resources still have insufficient conditions, the schedulable resources are further contended from other users to further increase the reserved resources, so as to ensure smooth switching and seamless connection of communication and traffic demands when the terminal device of the mobile user of the high-speed rail traffic is switched to the target cell.
Example III
Fig. 3 is a schematic diagram of a rail transit network switching apparatus according to a third embodiment of the present invention, where the apparatus 300 may be implemented in software and/or hardware, and may be generally integrated in a server, and as shown in fig. 3, the apparatus 300 includes:
a number confirmation module 310, configured to confirm, according to the communication data of the terminal devices in the cell, the number of terminal devices whose current moving speed exceeds a preset speed;
a cell confirmation module 320, configured to confirm a next target cell of the terminal device of the mobile user according to the movement information of the terminal device of the mobile user when the number of the terminal devices is greater than a preset number;
a resource reservation module 330, configured to confirm, according to the number of terminal devices, a basic reserved resource to be switched to a target cell;
The handover preparation module 340 is configured to notify the target cell of handover preparation according to the reserved base resources.
In this embodiment, the mobile information includes the number of terminal devices of the high-speed mobile user, the distance between the current location and the target cell, the moving direction, and the moving speed, and the determining the next target cell of the terminal device of the mobile user according to the mobile information of the terminal device of the mobile user includes: and confirming the next target cell of the terminal equipment of the mobile user in the target cells according to the number of the terminal equipment of the mobile user, the distance between the current position and the target cell, the moving direction, the moving speed and the positions of the target cells.
In an embodiment, three cells 1, 2 and 3 are provided, the three cells are uniformly distributed along the north-south direction of the track, the cell 2 calculates directions D1 and D2 of the user terminal equipment by sampling the signal arrival angles of the terminal equipment serving the user every second based on the multi-antenna technology, the distance vectors L1 and L2 calculate a velocity vector V according to the motion vectors formed by the directions and the distances of different times, and the velocity vector determines whether the user will move to the cell 1 or the cell 3. After the target cell is determined based on the above calculation, the time to handoff may be calculated as Δt= (L3-L2)/V based on the distance vector L2 and the velocity vector V of the motion and the handoff point vector distance L3 from cell 2 to cell 1 (if the next target cell is 1).
Further, the handover preparation module 340 further includes a resource determination module, configured to determine whether the idle resource of the target cell is greater than the basic reserved resource; the resource occupation module is used for occupying the idle resources before switching according to the basic reserved resources when the idle resources are larger than the basic reserved resources;
further, the handover preparation module 340 further includes a resource scheduling module, configured to confirm the schedulable resource according to a preset scheduling algorithm when the idle resource is smaller than the basic reserved resource, and if the sum of the schedulable resource and the idle resource is greater than the basic reserved resource, the resource occupation module performs pre-handover occupation on the schedulable resource according to the difference between the basic reserved resource and the idle resource. Specifically, the schedulable resources include unnecessary resources acquired from other terminal devices of the target cell.
Further, the resource reservation module 330 further includes a level judgment module for judging the service level of the current track traffic; the level adaptation module 330 is configured to confirm the basic reserved resource switched to the target cell according to the number of terminal devices and the service level. In this embodiment, the service level is positively correlated with the amount of the reserved resources.
The rail transit network switching device can execute the rail transit network switching method provided by any embodiment of the application, and has the corresponding functional modules and beneficial effects of the execution method. Technical details which are not described in detail in the present embodiment can be referred to the rail transit network switching method provided in any embodiment of the present application. Since the above-described rail transit network switching apparatus is an apparatus capable of executing the rail transit network switching method according to the embodiment of the present application, those skilled in the art can understand the specific implementation of the rail transit network switching apparatus according to the embodiment of the present application and various modifications thereof based on the rail transit network switching method according to the embodiment of the present application, so how the rail transit network switching apparatus implements the rail transit network switching method according to the embodiment of the present application will not be described in detail herein. As long as the device adopted by the technical personnel in the field to implement the rail transit network switching method in the embodiment of the application belongs to the scope of protection required by the application.
Example IV
Fig. 4 is a schematic structural diagram of a computer device according to a fourth embodiment of the present application. As shown in fig. 4, the computer device 40 includes at least one processor 11, and a memory, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., communicatively connected to the at least one processor 11, in which the memory stores a computer program executable by the at least one processor, and the processor 11 may perform various suitable actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the computer device 40 can also be stored. The processor 11, the ROM 12 and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.
Various components in computer device 40 are connected to I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, etc.; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the computer device 40 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.
The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as a rail transit network switching method.
In some embodiments, the rail transit network switching method may be implemented as a computer program tangibly embodied on a computer-readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the computer device 40 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the rail transit network switching method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the rail transit network switching method in any other suitable way (e.g., by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems-on-chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on a mobile terminal having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or trackball) by which a user can provide input to the mobile terminal. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.
Example five
The fifth embodiment of the present invention further provides a computer storage medium storing a computer program, where the computer program is used to execute the rail transit network switching method according to any one of the foregoing embodiments of the present invention when executed by a computer processor.
The computer storage media of embodiments of the invention may take the form of any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM, or flash Memory), an optical fiber, a portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, radio Frequency (RF), etc., or any suitable combination of the foregoing.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims (9)

1. A rail transit network switching method, comprising:
confirming the number of terminal devices with the current moving speed exceeding the preset speed according to the communication data of the terminal devices in the cell;
when the number of the terminal devices is larger than the preset number, confirming a next target cell of the terminal device of the mobile user according to the mobile information of the terminal device of the mobile user;
confirming basic reserved resources switched to a target cell according to the number of the terminal devices;
informing a target cell to perform switching preparation according to the basic reserved resources;
the notifying the target cell to perform handover preparation according to the reserved base resources includes: judging whether the idle resources of the target cell are larger than the basic reserved resources or not;
if the idle resource is smaller than the reserved base resource, the notifying the target cell of the handover preparation according to the reserved base resource includes:
Confirming schedulable resources according to a preset scheduling algorithm;
if the sum of the schedulable resources and the idle resources is larger than the basic reserved resources, occupation is carried out before switching the schedulable resources according to the difference of the basic reserved resources and the idle resources;
if the needed reserved basic reserved resource is G and the current idle resource R is less than G, triggering a preset scheduling algorithm, and performing deceleration processing on the terminal equipment of the existing user providing service to vacate the resource.
2. The method for switching a rail transit network according to claim 1, wherein notifying the target cell of the preparation for switching according to the basic reserved resource further comprises:
and if the idle resources are larger than the reserved resources, occupying the idle resources before switching according to the reserved resources.
3. The method of rail transit network handover as claimed in claim 1, wherein the schedulable resources include unnecessary resources acquired from other terminal devices of the target cell.
4. The rail transit network handover method according to claim 2, wherein the movement information includes the number of terminal devices of the high-speed mobile user, the distance between the current location and the target cell, the movement direction, the movement speed, and the confirming of the next target cell of the terminal device of the mobile user based on the movement information of the terminal device of the mobile user includes: and confirming the next target cell of the terminal equipment of the mobile user in the target cells according to the number of the terminal equipment of the high-speed mobile user, the distance between the current position and the target cell, the moving direction, the moving speed and the positions of the target cells.
5. The method for switching a rail transit network according to claim 2, wherein the confirming the basic reserved resource to be switched to the target cell according to the number of the terminal devices comprises:
judging the service grade of the current rail transit;
and confirming the basic reserved resources switched to the target cell according to the number of the terminal devices and the service level.
6. The method of rail transit network switching of claim 5, wherein the class of service and the underlying reserved resources are positively correlated.
7. A rail transit network switching device, comprising:
the quantity confirmation module is used for confirming the quantity of the terminal equipment with the current moving speed exceeding the preset speed according to the communication data of the terminal equipment of the cell;
the cell confirming module is used for confirming the next target cell of the terminal equipment of the mobile user according to the mobile information of the terminal equipment of the mobile user when the number of the terminal equipment is larger than the preset number;
the resource reservation module is used for confirming the basic reserved resources switched to the target cell according to the number of the terminal devices;
the switching preparation module is used for informing the target cell to perform switching preparation according to the basic reserved resources;
The handover preparation module further comprises a resource judgment module, which is used for judging whether the idle resource of the target cell is larger than the basic reserved resource;
the switching preparation module further comprises a resource scheduling module, wherein the resource scheduling module is used for confirming schedulable resources according to a preset scheduling algorithm when the idle resources are smaller than the basic reserved resources, and if the sum of the schedulable resources and the idle resources is larger than the basic reserved resources, the resource occupation module is used for occupying the schedulable resources before switching according to the difference of the basic reserved resources and the idle resources;
if the needed reserved basic reserved resource is G and the current idle resource R is less than G, triggering a preset scheduling algorithm, and performing deceleration processing on the terminal equipment of the existing user providing service to vacate the resource.
8. A computer device, comprising:
one or more processors;
a memory for storing one or more programs;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the rail transit network switching method of any of claims 1-6.
9. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the rail transit network switching method according to any one of claims 1-6.
CN202311041162.5A 2023-08-18 2023-08-18 Rail transit network switching method, device, equipment and medium Active CN116761151B (en)

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