CN113692016A - Multi-mode terminal control method supporting railway radio service automatic distribution - Google Patents
Multi-mode terminal control method supporting railway radio service automatic distribution Download PDFInfo
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- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0284—Traffic management, e.g. flow control or congestion control detecting congestion or overload during communication
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
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- H04W28/08—Load balancing or load distribution
- H04W28/09—Management thereof
- H04W28/0958—Management thereof based on metrics or performance parameters
- H04W28/0967—Quality of Service [QoS] parameters
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- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
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- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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Abstract
The invention relates to a multimode terminal control method supporting automatic shunting of railway radio service, S1: determining that the main network is a special broadband network; the service operation scene of the multimode terminal comprises a plurality of wireless access systems, the multimode terminal initiates a service request to a main network through a random access channel, and the main network sends a measurement instruction to the multimode terminal through a broadcast channel according to the service load of a bearing network; s2: the multi-mode terminal measures the wireless access system to form a parameter index of a measurement report; s3: the main network determines the type of the multimode terminal and distributes the service according to the measurement report, the service priority requirement of the current network and the service load; after the type of the multimode terminal is determined, the main network sends a service distribution instruction to the multimode terminal through a reserved field and an extended field in a broadcast channel, and after the multimode terminal receives the instruction, the multimode terminal switches the corresponding radio service to a specified module through analysis, so that the specific QoS requirement is met.
Description
Technical Field
The invention relates to the field of railway networks, in particular to an automatic shunting method for realizing railway radio services by controlling a multimode terminal.
Background
With the development of broadband mobile communication and mobile internet, data has become an increasingly dominant network traffic share. According to the prediction, the data traffic of the existing network will reach 90% of the total network traffic. On the other hand, under the condition of limited system capacity, if all data services are converged into a single network, great pressure is applied to the transmission of the data switching node and the network. On the other hand, there are usually a plurality of optional service support networks, and there is a case where the utilization rate of network resources is unbalanced, for example, there is a case where services are distributed unevenly in some time and space widely in a public mobile communication network, so network sharing is a very effective technical means for improving resource utilization rate. If the fact is ignored, the network operation cost is greatly increased by simply carrying out network capacity expansion and upgrading, and great resource waste is caused. In this regard, the frequency resources of a dedicated railroad wireless communication network are very limited and often cannot simultaneously meet the needs of a full service bearer. Therefore, the method is supplemented by a public and private (public network and private network) combination means, so that the network construction operation and maintenance cost is reduced, and the network utilization rate is effectively improved. Driven by this demand, traffic offload technology has become a very effective approach. Although 3GPP (3rd Generation Partnership Project) proposes a network architecture of LIPA/SIPTO (Local IP Access/Selected IP Traffic Offload) to Offload mobile Traffic of a Selected core network, no specific solution is given on how to perform efficient Traffic balancing and reasonable Traffic offloading between heterogeneous networks.
For the railway special mobile communication system with limited resources, under the condition that the frequency spectrum resources of the special railway radio services are very limited, the requirements of mission-critical services related to driving need to be guaranteed preferentially. The purpose of the private network service automatic distribution technology is to preferentially ensure that services with high security level can be borne through a private communication network, such as command scheduling, train control, video monitoring, data transmission, in-station shunting, maintenance data and infrastructure monitoring. The method is characterized in that services with low security level and high bandwidth requirement are distributed to a public mobile communication network at an access network side, or low-speed services with low priority are distributed to the existing narrow-band mobile communication system of a railway, such as GSM-R, DMR, so that resource waste of transmission of a large amount of service data between a core network and the access network is avoided, the service performance is improved, the capacity expansion pressure of the mobile communication network is reduced, and the overall investment cost of the mobile communication network is controlled. Particularly, for typical hot spot communication areas such as large railway passenger stations and marshalling stations, when traffic is congested, QoS guarantee of task-critical services is necessarily affected, and in severe cases, network quit may be caused, or even network security is endangered. In conclusion, if the priorities and the importance of the services are not differentiated, the QoS of the mission-critical services cannot be fully guaranteed, and the major challenge is inevitably caused to the safety of railway transportation.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a multimode terminal control method for supporting the automatic shunting of railway radio services, which adopts a multimode terminal integrated with a special broadband, a special narrowband and a general broadband at the same time to realize the reasonable shunting of the services. As shown in fig. 1, the dedicated broadband module and the narrowband module mainly implement broadband and narrowband communication services with mission-critical attributes, and the general broadband module implements broadband service bearer independent of driving. The key points of the invention are as follows: based on the integrated multi-mode wide/narrow band convergence terminal, the railway special broadband network can realize effective service distribution through a signal measurement technology and a priority-based flow technology without modifying a protocol and changing a public mobile communication network, thereby ensuring that the QoS of railway radio services of various grades can be practically guaranteed.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
the invention discloses a multimode terminal control method supporting automatic shunting of railway radio service, which comprises the following steps:
s1: determining that a main network for railway service operation is a special broadband network, a secondary network is a special narrowband network, and an optional network is other accessible networks; the multi-mode wide/narrow band fusion terminal integrates three types of modules, including a special wide band module, a special narrow band module and a universal wide band module, wherein the special wide band module and the special narrow band module are used for realizing wide band and narrow band communication services with task key attributes, and the universal wide band module is used for realizing wide band service bearing irrelevant to driving; the service operation scene of the multi-mode wide/narrow band convergence terminal comprises a plurality of wireless access systems with access conditions, the multi-mode wide/narrow band convergence terminal initiates a service request to a main network through a random access Channel, and the main network sends a measurement instruction to the multi-mode wide/narrow band convergence terminal through a Broadcast Channel (BCH) according to the service load of a bearing network;
s2: the multi-mode wide/narrow band fusion terminal measures a plurality of wireless access systems with access conditions according to a radio signal measurement criterion to form a measurement report; the measurement report is composed of a simplified index field;
the invention relates to a main network, namely a broadband railway special network, which is understood as the network with the most concentrated service and the dominant function.
S3: the main network determines the type of the multi-mode wide/narrow band fusion terminal and distributes the service according to the measurement report, the service priority requirement of the current network and the service load; after the type of the multi-mode wide/narrow band convergence terminal is determined, the main network issues a Service shunting instruction to the multi-mode wide/narrow band convergence terminal through a reserved field and an extended field in a broadcast channel, after the multi-mode wide/narrow band convergence terminal receives the instruction, a corresponding radio Service is switched to a designated module through analysis, and the module is selected to perform Service interaction with a corresponding radio access network, so that the requirement of specific QoS (Quality of Service) is met.
Preferably, the multi-mode wide/narrow band converged terminal can automatically identify a radio bearer network of a scene where the multi-mode wide/narrow band converged terminal is located; the dedicated narrowband module comprises: GSM-R (GSM for railway) and DMR (digital Mobile radio), the dedicated broadband module comprises: dedicated broadband 5G-R (5G for railway) and railway WiFi, the universal broadband module comprising: public broadband modules LTE (Long Term Evolution), 5G, and public WiFi, etc.;
the working mode of the multi-mode wide/narrow band fusion terminal is attached to a primary cell, a secondary cell or an optional cell, the primary cell is a cell subordinate to a primary network, the secondary cell is a cell next to the primary cell, the optional cell is a potential accessible cell, and the wireless access system is the potential accessible cell.
Preferably, the method for selecting the working mode of the multi-mode wide/narrow band fusion terminal comprises the following steps:
the index fields are 01, 02 and 03, 01, 02 and 03 respectively represent a primary network, a secondary network and an accessible network, and the information mapping of the index fields is performed locally, that is, the information corresponding to the index values is stored in the multi-mode wide/narrow band convergence terminal or the primary network, so that the transmission through an air interface is not needed, the index transmission mode greatly simplifies the measurement report, and the reserved fields and the extended fields can be further utilized to report the measurement information to the primary network. The information index is mainly used for identifying the available state, the coverage quality and the service load of the scene where the service is located;
and when the mapping of the index field information in the measurement report is finished, the multi-mode wide/narrow band fusion terminal finishes the selection of the working mode. The most reasonable flow unloading mode can be realized by further combining the service priority and selecting a proper communication module through decision, namely, the service is selectively distributed to a special broadband network, a special narrowband network, a public communication network and WiFi, and the user experience is improved to the greatest extent.
Preferably, the service operation scenario includes a primary network, a secondary network and an optional network, the primary network and the secondary network have a function of extracting network statistical performance, the optional network refers to other accessible networks except a railway private network and includes a public communication network and WiFi, the public communication network refers to a public broadband mobile communication network in particular, and the WiFi includes railway WiFi and public WiFi;
the private broadband network, the private narrowband network and the public broadband mobile communication network are all cellular networks;
the business operation scene is a large railway passenger station, a marshalling station, a large sports place, a large commercial facility or a large gathering and the like;
the service request is sent without changing the protocol specification.
Preferably, the specific steps of S2 are:
s21: the measurement report adopts an index mode to represent RSRP (Reference Signal Receiving Power) and RSRQ (Reference Signal Receiving Quality), the RSRP and the RSRQ are divided into different access levels through indexes, the index values 0-9 represent different Signal strengths, information needing to be transmitted is only a very limited index value, the actual Signal strength is locally defined and is not transmitted through an air interface; note: the index scheme designed here represents the corresponding power value by an integer number, such as 1 to-30 dBm, wherein an index increment of 1 can be defined to represent an increase of 1dBm in the absolute power value, and an index decrement of-1 can be defined to represent a decrease of 1dBm in the absolute power value, so that the effective range of-30 dBm can be set to plus or minus 0.5dBm, thereby reducing the length of the occupied protocol field, and furthermore, the decision power increment corresponding to the index increment can be set as required.
S22: the multi-mode wide/narrow band fusion terminal acquires the current network load and the allocable frequency resources of the current main cell or the wireless access system through the main network, and senses the public communication network and the WiFi through frequency scanning;
s23: the QoS measurement process of the main network:
firstly, measurement configuration is carried out, a multi-mode wide/narrow band fusion terminal is in a measurement mode, the multi-mode wide/narrow band fusion terminal measures a current primary cell according to a measurement instruction sent by a primary network, whether measurement on a wireless access system needs to be carried out or not is judged according to the result of S22, and if the wireless access system exists, the wireless access system is measured;
s24: the multi-mode wide/narrow band fusion terminal measures the receiving level quality of the wireless access system under a service operation scene, writes the receiving level quality of the wireless access system into the RSRP in the measurement report, and the measurement process is as follows: the method comprises the steps that the method is alternately carried out under the control of multimode wide/narrow band fusion terminal software, and the multimode wide/narrow band fusion terminal software is application software installed on a multimode wide/narrow band fusion terminal and used for controlling a measurement process, carrying out protocol analysis, extracting index information from an extension field and a reserved field and finishing final mapping of the index information;
s25: and initiating an attempted access through the multi-mode wide/narrow band fusion terminal, counting the service quality of different wireless access systems, such as access delay and access request time, and writing the service quality of the wireless access systems into RSRQ in a measurement report to form the measurement report.
Preferably, the specific steps of S3 are:
s31: determining a service distribution condition;
the service shunting conditions comprise: the receiving level quality of the wireless access system, the service quality of the wireless access system and the network state of the wireless access system;
s32: first consider the reception level quality, P, of a wireless access systemr，Pc，Pp，PwRespectively representing the N times of power statistics average of the primary network, the secondary network, the public communication network and the WiFi access point when P is satisfiedr>Pmin,rIn which P ismin,rThe lowest level capable of being accessed to the main network is shown, and the multi-mode wide/narrow band convergence terminal can be accessed to the main network when the requirement P is metc>Pmin,cIn which P ismin,cThe lowest level which can be accessed to the secondary network is shown, and the multi-mode wide/narrow band fusion terminal can be accessed to the secondary network when the P is satisfiedp>Pmin,pIn which P ismin,pThe minimum level which can be accessed to the public communication network is shown, and the multi-mode wide/narrow band converged terminal can be accessed to the public communication network when the P is satisfiedw>Pmin,wIn which P ismin,wThe minimum level which can be accessed to WiFi is represented, and the multi-mode wide/narrow band fusion terminal can be accessed to WiFi;
s33: secondly, the service quality of the wireless access system is considered;
s34: finally, considering the network state of the wireless access system: the network has good bearing capacity and is in a not-busy state;
s35: when the service distribution conditions are all met, carrying out service distribution;
s36: the main network does not need to change the working mode of the main network, and the service distribution only needs to change the working mode of the multi-mode wide/narrow band fusion terminal through multi-mode wide/narrow band fusion terminal software, and for a smart phone system (such as android), the service distribution can be realized through an application program (app).
Preferably, the multi-mode wide/narrow band fusion terminal defines the measurement report by the reserved field and the extended field, because only the measurement grade needs to be transmitted, and only few bits are needed to implement the measurement;
the main network sends the control instruction through the reserved field and the extended field, and only few bits are needed for realizing the purpose of only transmitting the target network selection information.
Preferably, the basis of the traffic diversion in step S3 is the load capacity and the busy degree of the current network.
Preferably, the service offloading mode includes a broadband service default offloading mode and a narrowband service default offloading mode.
Preferably, the default offloading mode of the broadband service is: the secure traffic and the high priority traffic are shunted to the private broadband network and the non-secure traffic and the low priority traffic are shunted to the public communication network.
Preferably, the default splitting mode of the narrowband service is as follows: the secure traffic and the high priority traffic are shunted to the private narrowband network and the non-secure traffic and the low priority traffic are shunted to the public communication network.
The invention has the following beneficial effects:
the invention provides a multimode terminal control method supporting automatic shunting of railway radio services, which divides a service bearing network into a main network and an optional network, and can realize effective service shunting through a signal measurement technology and a priority-based shunting technology by taking a railway special broadband network as the main network under the conditions of not modifying protocols and not needing any change of a public communication network, thereby ensuring that the QoS of the railway radio services of various grades can be practically ensured.
Drawings
The invention has the following drawings:
fig. 1 is a scene diagram illustrating a multimode terminal control method supporting automatic shunting of railway radio service according to the present invention;
fig. 2 is a flowchart illustrating a multimode terminal control method for supporting automatic shunting of railway radio services according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a measurement method for measuring a measurement criterion according to the present invention;
FIG. 4 is a diagram illustrating a method for implementing access to railway radio services based on measurement criteria according to the present invention;
fig. 5 is a schematic diagram illustrating instruction control field definition of a multimode terminal control method supporting automatic shunting of railway radio services according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 to 5 show a multimode terminal control method supporting automatic shunting of railway radio services according to the present invention, which shunts railway wide/narrow band services according to service security requirements and priorities, and realizes effective service shunting by a signal measurement technique and a priority-based shunting technique, thereby ensuring that QoS of railway radio services of various grades can be practically guaranteed, and maximizing network resource utilization.
In this embodiment, the method includes:
s1: determining that a main network for railway service operation is a special broadband network, a secondary network is a special narrowband network, and an optional network is other accessible networks; the multi-mode wide/narrow band fusion terminal integrates three types of modules, including a special wide band module, a special narrow band module and a universal wide band module, wherein the special wide band module and the special narrow band module are used for realizing wide band and narrow band communication services with task key attributes, and the universal wide band module is used for realizing wide band service bearing irrelevant to driving; the service operation scene of the multi-mode wide/narrow band fusion terminal comprises a plurality of wireless access systems with access conditions, the multi-mode wide/narrow band fusion terminal initiates a service request to a main network through a random access channel, and the main network sends a measurement instruction to the multi-mode wide/narrow band fusion terminal through a broadcast channel according to the service load of a bearing network;
s2: the multi-mode wide/narrow band fusion terminal measures a plurality of wireless access systems with access conditions according to a radio signal measurement criterion to form a measurement report; the measurement report is composed of a simplified index field;
the invention relates to a main network, namely a broadband railway special network, which is understood as the network with the most concentrated service and the dominant function.
S3: the main network determines the type of the multi-mode wide/narrow band fusion terminal and distributes the service according to the measurement report, the service priority requirement of the current network and the service load; after the type of the multi-mode wide/narrow band convergence terminal is determined, the main network issues a service shunting instruction to the multi-mode wide/narrow band convergence terminal through a reserved field and an extended field in a broadcast channel, after the multi-mode wide/narrow band convergence terminal receives the instruction, the corresponding radio service is switched to a designated module through analysis, and the module is selected to perform service interaction with the corresponding radio access network, so that the specific QoS requirement is met.
Preferably, the multi-mode wide/narrow band converged terminal can automatically identify a radio bearer network of a scene where the multi-mode wide/narrow band converged terminal is located; the dedicated narrowband module comprises: GSM-R and DMR, the special broadband module includes: 5G-R and railway WiFi, the general broadband module includes: LTE, 5G, (5G for railway), public WiFi, and the like;
the working mode of the multi-mode wide/narrow band fusion terminal is attached to a primary cell, a secondary cell or an optional cell, wherein the primary cell is a cell subordinate to a primary network, the secondary cell is a cell next to the primary cell, and the optional cell is a potential accessible cell.
Preferably, the method for selecting the working mode of the multi-mode wide/narrow band fusion terminal comprises the following steps:
the index fields are 01, 02 and 03, 01, 02 and 03 respectively represent a primary network, a secondary network and an accessible network, and the information mapping of the index fields is performed locally, that is, the information corresponding to the index values is stored in the multi-mode wide/narrow band convergence terminal or the primary network, so that the transmission through an air interface is not needed, the index transmission mode greatly simplifies the measurement report, and the reserved fields and the extended fields can be further utilized to report the measurement information to the primary network. The information index is mainly used for identifying the available state, the coverage quality and the service load of the scene where the service is located;
and when the mapping of the index field information in the measurement report is finished, the multi-mode wide/narrow band fusion terminal finishes the selection of the working mode. The most reasonable flow unloading mode can be realized by further combining the service priority and selecting a proper communication module through decision, namely, the service is selectively distributed to a special broadband network, a special narrowband network, a public communication network and WiFi, and the user experience is improved to the greatest extent.
Preferably, the service operation scenario includes a primary network, a secondary network and an optional network, the primary network and the secondary network have a function of extracting network statistical performance, the optional network refers to other accessible networks except for a railway private network and includes a public communication network and WiFi, the public communication network includes a public broadband mobile communication network, and the WiFi includes a railway WiFi and a public WiFi;
the private broadband network, the private narrowband network and the public broadband mobile communication network are all cellular networks;
the business operation scene is a large railway passenger station, a marshalling station, a large sports place, a large commercial facility or a large gathering and the like;
the service request is sent without changing the protocol specification.
Preferably, the specific steps of S2 are:
s21: the measurement report adopts an index mode to represent RSRP (Reference Signal Receiving Power) and RSRQ (Reference Signal Receiving Quality), the RSRP and the RSRQ are divided into different access levels through indexes, the index values 0-9 represent different Signal strengths, information needing to be transmitted is only a very limited index value, the actual Signal strength is locally defined and is not transmitted through an air interface;
s22: the multi-mode wide/narrow band fusion terminal acquires the current network load and the allocable frequency resources of the current main cell or the wireless access system through the main network, and senses the public communication network and the WiFi through frequency scanning;
s23: the QoS measurement process of the main network:
firstly, measurement configuration is carried out, a multi-mode wide/narrow band fusion terminal is in a measurement mode, the multi-mode wide/narrow band fusion terminal measures a current primary cell according to a measurement instruction sent by a primary network, whether measurement on a wireless access system needs to be carried out or not is judged according to the result of S22, and if the wireless access system exists, the wireless access system is measured;
s24: the multi-mode wide/narrow band fusion terminal measures the receiving level quality of the wireless access system under a service operation scene, writes the receiving level quality of the wireless access system into the RSRP in the measurement report, and the measurement process is as follows: the method comprises the steps that the method is alternately carried out under the control of multimode wide/narrow band fusion terminal software, and the multimode wide/narrow band fusion terminal software is application software installed on a multimode wide/narrow band fusion terminal and used for controlling a measurement process, carrying out protocol analysis, extracting index information from an extension field and a reserved field and finishing final mapping of the index information;
s25: and initiating an attempted access through the multi-mode wide/narrow band fusion terminal, counting the service quality of different wireless access systems, such as access delay and access request time, and writing the service quality of the wireless access systems into RSRQ in a measurement report to form the measurement report.
Preferably, the specific steps of S3 are:
s31: determining a service distribution condition;
the service shunting conditions comprise: the receiving level quality of the wireless access system, the service quality of the wireless access system and the network state of the wireless access system;
s32: first consider the reception level quality, P, of a wireless access systemr，Pc，Pp，PwRespectively representing the N times of power statistics average of the primary network, the secondary network, the public communication network and the WiFi access point when P is satisfiedr>Pmin,rIn which P ismin,rThe lowest level capable of being accessed to the main network is shown, and the multi-mode wide/narrow band convergence terminal can be accessed to the main network when the requirement P is metc>Pmin,cIn which P ismin,cThe lowest level which can be accessed to the secondary network is shown, and the multi-mode wide/narrow band fusion terminal can be accessed to the secondary network when the P is satisfiedp>Pmin,pIn which P ismin,pThe minimum level which can be accessed to the public communication network is shown, and the multi-mode wide/narrow band converged terminal can be accessed to the public communication network when the P is satisfiedw>Pmin,wIn which P ismin,wThe minimum level which can be accessed to WiFi is represented, and the multi-mode wide/narrow band fusion terminal can be accessed to WiFi;
s33: secondly, the service quality of the wireless access system is considered;
s34: finally, considering the network state of the wireless access system: the network has good bearing capacity and is in a not-busy state;
s35: when the service distribution conditions are all met, carrying out service distribution;
s36: the main network does not need to change the working mode of the main network, and the service distribution only needs to change the working mode of the multi-mode wide/narrow band fusion terminal through multi-mode wide/narrow band fusion terminal software, and for a smart phone system (such as android), the service distribution can be realized through an application program (app).
Preferably, the multi-mode wide/narrow band fusion terminal defines the measurement report by the reserved field and the extended field, because only the measurement grade needs to be transmitted, and only few bits are needed to implement the measurement;
the main network sends the control instruction through the reserved field and the extended field, and only few bits are needed for realizing the purpose of only transmitting the target network selection information.
Preferably, the basis of the traffic diversion in step S3 is the load capacity and the busy degree of the current network.
Preferably, the service offloading mode includes a broadband service default offloading mode and a narrowband service default offloading mode.
Preferably, the default offloading mode of the broadband service is: the secure traffic and the high priority traffic are shunted to the private broadband network and the non-secure traffic and the low priority traffic are shunted to the public communication network.
Preferably, the default splitting mode of the narrowband service is as follows: the secure traffic and the high priority traffic are shunted to the private narrowband network and the non-secure traffic and the low priority traffic are shunted to the public communication network.
The invention utilizes a multimode terminal control method supporting the automatic shunting of the railway radio service to acquire the available network information of the multimode wide/narrow band fusion terminal in the current environment, realizes effective service shunting by a signal measurement technology and a priority-based shunting technology, and ensures that the QoS of the railway radio services of various grades can be practically guaranteed. The main network informs the multi-mode wide/narrow band fusion terminal to select the appointed access network through the reserved field or the extended field in the protocol specification. The measurement report in the invention is from a multi-mode wide/narrow band fusion terminal, has the characteristics of reliable data source, low cost and reality and comprehensiveness, is completed by the multi-mode wide/narrow band fusion terminal, and is suitable for the conditions of various heterogeneous networks; the main network is issued through the broadcast channel, so that the network performance is not influenced. The method of the invention can fully utilize the advantages of large capacity support capability and high safety of public broadband mobile communication network under the condition that the railway special bandwidth network is strictly limited, can ensure that different types of railway wide and narrow bandwidth services can communicate with corresponding service carrying networks by selecting the most appropriate wireless communication module, and meets the specific QoS requirement of the railway special services.
The present invention is further described in a specific embodiment, in the service operation scenario in the embodiment of the present invention, an environment where a multi-mode wide/narrow band convergence terminal is located has multiple network access conditions, such as a wide/narrow band of a railway private network, a public communication network, WiFi, and the like, the multi-mode wide/narrow band convergence terminal refers to a communication device terminal having multiple working modes, including GSM-R, DMR, 5G-R, GSM, LTE, 5G, WiFi, and the multi-mode wide/narrow band convergence terminal may be implemented by a CPE (Customer Premise Equipment). Of course, it is understood that a multi-mode wideband/narrowband converged terminal typically has all or part of the network access conditions described above.
Table 1 parameter and reference value table (varying with network environment) of multi-mode wide/narrow band fusion terminal measurement event
According to the parameters and reference values of the multi-mode wide/narrow band fusion terminal measurement events in the table 1, the network access conditions of the environment where the multi-mode wide/narrow band fusion terminal is located can be effectively evaluated; each module can judge the actual access capability of the network based on the measurement statistical data (such as the arithmetic mean of 20 measurements) in combination with the corresponding value range, and the measurement result meeting the value range can be used as a candidate access network. After the measurement report is sent to the primary network, further, a final target network is determined by referring to the service bearing performance threshold of the primary network in table 2, wherein information on one side of the primary network, namely frequency occupation and core network load, is combined to simultaneously determine the access conditions of the multi-mode wide/narrow band convergence terminal and the primary network.
Table 2 main network service bearing performance threshold
Referring to fig. 3, a detailed description is made of a multi-mode broadband/narrowband convergence terminal process based on a measurement criterion.
Step 101: the multi-mode wide/narrow band fusion terminal initiates a service request, and the main network sends an instruction for starting a measurement process of the multi-mode wide/narrow band fusion terminal in a service assignment process in an RRC connection state.
Step 102: after the multi-mode wide/narrow band convergence terminal receives the measurement instruction of the main network, the multi-mode wide/narrow band convergence terminal measures a plurality of signals (at least two signals) of adjacent cells through different wireless receiving modules in a software control mode, and the arithmetic mean value of the measurement results (power values) is taken to obtain the service quality of different cells. The measurement report may contain different levels of measurement results depending on the differences in different network coverage.
Step 103: the multi-mode wide/narrow band convergence terminal starts the sequential measurement of each communication module except the main network, and generates a measurement report after the measurement of all the modules is finished, referring to fig. 3.
Step 104: under the RRC connection state, the multi-mode wide/narrow band fusion terminal sends a measurement report to the main network in the reserved field and the extended field
Referring to fig. 4, a detailed description is made on the control flow of the operation mode of the multi-mode wideband/narrowband converged terminal based on the measurement report.
Step 201: the main network adopts a working mode of parallel processing with the multi-mode wide/narrow band convergence terminal, and when the step 101 is executed, namely when a service request of the multi-mode wide/narrow band convergence terminal is received, the main network starts to extract network performance data and service priority attributes of a user.
Step 202: the main network firstly judges the wireless access condition of the multi-mode wide/narrow band fusion terminal according to the table 1, if the wireless access condition is met, the next step is carried out, namely the shunting network identification is determined by combining the table 2; and if the measurement report shows that the access condition is not met, directly carrying the service through the main network. In this case, the multi-mode wide/narrow band converged terminal measurement report is to confirm whether other target cells (e.g., 5G) satisfy the radio access condition.
Step 203: the method comprises the steps that a main network simultaneously obtains service load of the main network through a core network while starting a measurement process of a multi-mode wide/narrow band fusion terminal, and after a measurement report of the multi-mode wide/narrow band fusion terminal is obtained, an optimal target network which needs to be accessed in the next step of the multi-mode wide/narrow band fusion terminal can be determined by combining service priority.
Step 204: the multi-mode wide/narrow band fusion terminal receives a control instruction issued by a main network through a broadcast channel, extracts network selection information in a reserved or expanded field, switches a communication module according to a target access network identifier NI and loads a service, namely, the multi-mode wide/narrow band fusion terminal enters a target network working mode determined by the main network.
Referring to fig. 5, a detailed description is made of a control word format for controlling the multi-modal wideband/narrowband convergence terminal.
The multimode terminal control method supporting the railway radio service automatic distribution provided by the invention can effectively select the target network in the service activation process, thereby carrying out service distribution on different users. Particularly, the multi-mode wide/narrow band convergence terminal with a plurality of communication module configurations can measure a potential accessible network under the control of a main network, and send a measurement report through RRC connection with the main network, the main network can determine the optimal service access mode of the multi-mode wide/narrow band convergence terminal according to the measurement report reported by the multi-mode wide/narrow band convergence terminal and the current service load of the network, thereby being capable of controlling the balanced distribution of service flow among different networks and better guaranteeing the QoS requirement of the railway key service, meanwhile, as the advantages of the bandwidth resources of public communication networks or other communication networks can be fully utilized, the frequency insufficiency of the railway special mobile communication network can be effectively solved, the difficult problems of large capacity and large bandwidth communication can not be met, and the service requirement of the railway communication hotspot can be met, such as passenger/freight hubs, railway hubs, maintenance bases, marshalling stations, etc. The invention can realize resource sharing among different networks under the condition that various wireless communication networks coexist, can realize maximization of network resource utilization, meets the requirement of large-capacity communication and efficient utilization of frequency spectrum, and solves the contradiction of frequency resource shortage in a railway communication hotspot area.
It can be appreciated that the present invention proposes a solution to railway traffic operational scenarios such as passenger/freight hubs, railway hubs, maintenance bases, marshalling stations, etc., as well as to railway main (high and common speed) radio traffic auto-offloading methods. The method is not only suitable for other relevant railway scenes, such as railway motor train stations (high-speed train warehousing and overhauling places) and the like, but also suitable for shunting of some public LTE mobile communication systems in large-traffic scenes, such as large-scale stadiums, conference centers, traffic hubs (areas) and other service hotspot areas, and the 3 core technologies and related steps provided by the invention are still used conditionally to realize efficient radio service shunting, namely: (1) a plurality of accessible networks exist, the networks can be railway special mobile communication networks, public mobile communication networks and WiFi, and can be wide and narrow bands which simultaneously meet access conditions; (2) accurately sensing the availability of different networks through measurements; (3) the railway special communication network supports high-reliability access, the service automatic shunting method based on measurement provided by the invention can shunt data flow under a specific scene based on a unified multi-mode wide/narrow-band fusion terminal, and with the progress of the technology, the multi-mode wide/narrow-band fusion terminal can integrate more modules according to requirements, so that the resource consumption of the railway special communication network is reduced, and the railway radio service comprehensive access which is mutually supplemented by a plurality of access modes of a private network, a public network and a WLAN shared network is realized.
The above describes in detail a multimode terminal control method supporting automatic shunting of railway radio services, and the principle and implementation of the present invention are explained herein by analyzing communication examples (control word design and transmission of control commands) of a multimode wide/narrowband convergence terminal, and the above description of the examples is only used to help understanding the method and core ideas of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be a change in the specific implementation and application scope, for example, it is applicable to any communication network with multiple access conditions, for example, different networks of different mobile operators, including various networks adopting different standards, and all functions of the present invention may be implemented as long as corresponding communication modules are configured, and at the same time, a reserved field and an extended field are reserved for all communication protocols, and there is enough space to ensure that control words required for multi-mode wide/narrow band convergence terminal control and service offloading can be defined; on the other hand, the random service access channel and the broadcast channel are common technologies for cellular mobile communications, and the measurement report and the network selection command can be transmitted through the channels respectively without changing the existing protocol specification, and as mentioned above, the content of this specification should not be construed as limiting the present invention.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Those not described in detail in this specification are within the skill of the art.
Claims (7)
1. A multimode terminal control method for supporting railway radio service automatic distribution is characterized by comprising the following steps:
s1: determining that a main network for railway service operation is a special broadband network, a secondary network is a special narrowband network, and an optional network is other accessible networks; the multi-mode wide/narrow band fusion terminal integrates three types of modules, including a special wide band module, a special narrow band module and a universal wide band module, wherein the special wide band module and the special narrow band module are used for realizing wide band and narrow band communication services with task key attributes, and the universal wide band module is used for realizing wide band service bearing irrelevant to driving; the service operation scene of the multi-mode wide/narrow band fusion terminal comprises a plurality of wireless access systems with access conditions, the multi-mode wide/narrow band fusion terminal initiates a service request to a main network through a random access channel, and the main network sends a measurement instruction to the multi-mode wide/narrow band fusion terminal through a broadcast channel according to the service load of a bearing network;
s2: the multi-mode wide/narrow band fusion terminal measures a plurality of wireless access systems with access conditions according to a radio signal measurement criterion to form a measurement report; the measurement report is composed of a simplified index field;
s3: the main network determines the type of the multi-mode wide/narrow band fusion terminal and distributes the service according to the measurement report, the service priority requirement of the current network and the service load; after the type of the multi-mode wide/narrow band convergence terminal is determined, the main network issues a service shunting instruction to the multi-mode wide/narrow band convergence terminal through a reserved field and an extended field in a broadcast channel, after the multi-mode wide/narrow band convergence terminal receives the instruction, the corresponding radio service is switched to a designated module through analysis, and the module is selected to perform service interaction with the corresponding radio access network, so that the specific QoS requirement is met.
2. The multimode terminal control method for supporting automatic shunting of railway radio services according to claim 1, wherein the multimode wide/narrow band convergence terminal is capable of automatically identifying a radio bearer network of a scene where the terminal is located; the dedicated narrowband module comprises: GSM-R and DMR, the special broadband module includes: 5G-R and railway WiFi, the general broadband module includes: LTE, 5G, and public WiFi;
the working mode of the multi-mode wide/narrow band fusion terminal is attached to a primary cell, a secondary cell or an optional cell, the primary cell is a cell subordinate to a primary network, the secondary cell is a cell next to the primary cell, the optional cell is a potential accessible cell, and the wireless access system is the potential accessible cell.
3. The multimode terminal control method for supporting automatic shunting of railway radio services according to claim 2, wherein the method for selecting the working mode by the multimode wide/narrowband convergence terminal is as follows:
the index fields are 01, 02 and 03, 01, 02 and 03 respectively represent a primary network, a secondary network and an accessible network, information corresponding to the index fields is stored in the multi-mode wide/narrow band convergence terminal or the primary network, and when the mapping of the index field information in the measurement report is completed, the multi-mode wide/narrow band convergence terminal completes the selection of the working mode.
4. The multimode terminal control method for supporting automatic offloading of railway radio service of claim 3, wherein the service operation scenario comprises a primary network, a secondary network and an optional network, the primary network and the secondary network having a function of extracting network statistics performance, the optional network comprising a public communication network and WiFi, the public communication network comprising a public broadband mobile communication network, the WiFi comprising railway WiFi and public WiFi;
the private broadband network, the private narrowband network and the public broadband mobile communication network are all cellular networks;
the business operation scene is a large railway passenger station, a marshalling station, a large sports place, a large commercial facility or a large gathering;
the service request is sent without changing the protocol specification.
5. The multimode terminal control method for supporting automatic shunting of railway radio services as claimed in claim 4, wherein the specific step of S2 is:
s21: the measurement report represents RSRP and RSRQ in an index mode, the RSRP and the RSRQ are divided into different access levels through indexes, and different signal strengths are represented by index values of 0-9;
s22: the multi-mode wide/narrow band fusion terminal acquires the current network load and the allocable frequency resources of the current main cell or the wireless access system through the main network, and senses the public communication network and the WiFi through frequency scanning;
s23: the QoS measurement process of the main network:
firstly, measurement configuration is carried out, a multi-mode wide/narrow band fusion terminal is in a measurement mode, the multi-mode wide/narrow band fusion terminal measures a current primary cell according to a measurement instruction sent by a primary network, whether measurement on a wireless access system needs to be carried out or not is judged according to the result of S22, and if the wireless access system exists, the wireless access system is measured;
s24: the multi-mode wide/narrow band fusion terminal measures the receiving level quality of the wireless access system under a service operation scene, and writes the receiving level quality of the wireless access system into RSRP in a measurement report; the measurement process is as follows: the method comprises the steps that the method is alternately carried out under the control of multimode wide/narrow band fusion terminal software, and the multimode wide/narrow band fusion terminal software is application software installed on a multimode wide/narrow band fusion terminal and used for controlling a measurement process, carrying out protocol analysis, extracting index information from an extension field and a reserved field and finishing final mapping of the index information;
s25: and initiating an attempted access through the multi-mode wide/narrow band fusion terminal, counting the service quality of different wireless access systems, and writing the service quality of the wireless access systems into the RSRQ in the measurement report to form the measurement report.
6. The multimode terminal control method supporting automatic shunting of railway radio services as claimed in claim 5, wherein the specific step of S3 is:
s31: determining a service distribution condition;
the service shunting conditions comprise: the receiving level quality of the wireless access system, the service quality of the wireless access system and the network state of the wireless access system;
s32: first consider the reception level quality, P, of a wireless access systemr，Pc，Pp，PwRespectively representing the N times of power statistics average of the primary network, the secondary network, the public communication network and the WiFi access point when P is satisfiedr>Pmin,rIn which P ismin,rThe lowest level capable of being accessed to the main network is shown, and the multi-mode wide/narrow band convergence terminal can be accessed to the main network when the requirement P is metc>Pmin,cIn which P ismin,cThe lowest level which can be accessed to the secondary network is shown, and the multi-mode wide/narrow band fusion terminal can be accessed to the secondary network when the P is satisfiedp>Pmin,pIn which P ismin,pThe minimum level which can be accessed to the public communication network is shown, and the multi-mode wide/narrow band converged terminal can be accessed to the public communication network when the P is satisfiedw>Pmin,wIn which P ismin,wThe minimum level which can be accessed to WiFi is represented, and the multi-mode wide/narrow band fusion terminal can be accessed to WiFi;
s33: secondly, the service quality of the wireless access system is considered;
s34: finally, considering the network state of the wireless access system: the network has good bearing capacity and is in a not-busy state;
s35: when the service distribution conditions are all met, carrying out service distribution;
s36: the main network does not need to change the working mode of the main network, and the service distribution only needs to change the working mode of the multi-mode wide/narrow band fusion terminal through multi-mode wide/narrow band fusion terminal software.
7. The multimode terminal control method for supporting automatic shunting of railway radio services according to claim 6, wherein the modes of traffic shunting comprise a default shunting mode of broadband services and a default shunting mode of narrowband services;
the default shunting mode of the broadband service is as follows: the safe service and the high priority service are distributed to a special broadband network, and the non-safe service and the low priority service are distributed to a public communication network;
the default shunting mode of the narrowband service is as follows: the secure traffic and the high priority traffic are shunted to the private narrowband network and the non-secure traffic and the low priority traffic are shunted to the public communication network.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115002093A (en) * | 2022-05-30 | 2022-09-02 | 中国船舶重工集团公司第七二二研究所 | Method for internal and external remote communication in complex mobile scene |
| WO2023123295A1 (en) * | 2021-12-31 | 2023-07-06 | 海能达通信股份有限公司 | Communication method and apparatus, broadband and narrowband terminal, and storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140079022A1 (en) * | 2012-09-14 | 2014-03-20 | Interdigital Patent Holdings, Inc. | Methods for mobility control for wi-fi offloading in wireless systems |
| US20140233386A1 (en) * | 2013-02-18 | 2014-08-21 | Samsung Electronics Co., Ltd. | Method and system for offloading handover of wireless connections from a lte network to a wi-fi network |
| CN104349380A (en) * | 2013-08-08 | 2015-02-11 | 中兴通讯股份有限公司 | Information interactive and distributing processing method and device, base station, RNC (Radio Network Controller) and terminal |
| US20150078360A1 (en) * | 2012-05-09 | 2015-03-19 | Zte Corporation | Network Access Method And Apparatus |
| CN105191398A (en) * | 2014-01-29 | 2015-12-23 | 联发科技股份有限公司 | Method of offload selection inheterogeneous wireless communication networks |
| CN106341799A (en) * | 2016-11-23 | 2017-01-18 | 北京坦达信息科技有限公司 | Multimode communication terminal |
| CN107277866A (en) * | 2016-04-07 | 2017-10-20 | 中国移动通信有限公司研究院 | A kind of data service switching method, device, base station and system |
| US20200178198A1 (en) * | 2019-02-12 | 2020-06-04 | Intel Corporation | Server selection for vehicle communications and applications |
-
2021
- 2021-07-13 CN CN202110789906.6A patent/CN113692016B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150078360A1 (en) * | 2012-05-09 | 2015-03-19 | Zte Corporation | Network Access Method And Apparatus |
| US20140079022A1 (en) * | 2012-09-14 | 2014-03-20 | Interdigital Patent Holdings, Inc. | Methods for mobility control for wi-fi offloading in wireless systems |
| US20140233386A1 (en) * | 2013-02-18 | 2014-08-21 | Samsung Electronics Co., Ltd. | Method and system for offloading handover of wireless connections from a lte network to a wi-fi network |
| CN104349380A (en) * | 2013-08-08 | 2015-02-11 | 中兴通讯股份有限公司 | Information interactive and distributing processing method and device, base station, RNC (Radio Network Controller) and terminal |
| CN105191398A (en) * | 2014-01-29 | 2015-12-23 | 联发科技股份有限公司 | Method of offload selection inheterogeneous wireless communication networks |
| CN107277866A (en) * | 2016-04-07 | 2017-10-20 | 中国移动通信有限公司研究院 | A kind of data service switching method, device, base station and system |
| CN106341799A (en) * | 2016-11-23 | 2017-01-18 | 北京坦达信息科技有限公司 | Multimode communication terminal |
| US20200178198A1 (en) * | 2019-02-12 | 2020-06-04 | Intel Corporation | Server selection for vehicle communications and applications |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023123295A1 (en) * | 2021-12-31 | 2023-07-06 | 海能达通信股份有限公司 | Communication method and apparatus, broadband and narrowband terminal, and storage medium |
| CN115002093A (en) * | 2022-05-30 | 2022-09-02 | 中国船舶重工集团公司第七二二研究所 | Method for internal and external remote communication in complex mobile scene |
| CN115002093B (en) * | 2022-05-30 | 2023-08-29 | 中国船舶重工集团公司第七二二研究所 | Method for internal and external remote communication under complex mobile scene |
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|---|---|
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