CN114727346A

CN114727346A - Method and device for redirecting different systems and electronic equipment

Info

Publication number: CN114727346A
Application number: CN202210334925.4A
Authority: CN
Inventors: 曹华美
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-07-08

Abstract

The application provides a method, a device and an electronic device for inter-system redirection, which are applied to a base station, wherein the method comprises the following steps: based on redirection trigger information, a measurement object list is issued to the terminal, wherein the measurement object list comprises at least two different system frequency points; receiving a measurement report uploaded by a terminal in a preset time period, wherein the measurement report is obtained by the terminal based on signal detection of at least two different system frequency points; selecting a target frequency point from different system frequency points corresponding to the received measurement report, wherein the target frequency point is one of at least two different system frequency points; and acquiring a redirection instruction based on the target frequency point and sending the redirection instruction to the terminal. The selected target frequency point is one of the different system frequency points corresponding to the measurement report received in the preset time period, the quality of the determined target frequency point is better, and the terminal can be ensured to reside in the cell of the redirection frequency point when being redirected.

Description

Method and device for redirecting different systems and electronic equipment

Technical Field

The present application relates to the field of information technologies, and in particular, to a method and an apparatus for inter-system redirection, and an electronic device.

Background

Various networks coexist in the current mobile communication network, and the interoperation process among different communication networks has important significance for improving the network quality. The interworking process typically includes both handover and redirection, both for connected state.

Generally, in the process of redirecting an inter-system, after receiving an inter-system frequency point measurement report reported by a terminal for the first time, a base station initiates a terminal CONTEXT RELEASE REQUEST (UE CONTEXT RELEASE REQUEST) to a core network, and in the process of waiting for a terminal CONTEXT RELEASE instruction (UE CONTEXT RELEASE COMMAND), the base station receives a new measurement report of an inter-system frequency point, and covers the re-directed frequency point stored in the local before. When a terminal context Release instruction is received, a different system frequency point reported last time in an RRC Release instruction (RRC Release) is sent to the terminal as a redirection frequency point, however, due to the influence of transmission distance and the like, a measurement report received last by a general base station, and a general terminal is obtained by measuring a far different system cell signal, so that a cell which can not reside in the redirection frequency point often occurs when the terminal is redirected.

Disclosure of Invention

In view of this, the present application provides a method, an apparatus and an electronic device for inter-system redirection, and the technical solution is as follows:

a method for inter-system redirection comprises the following steps:

based on redirection trigger information, issuing a measurement object list to a terminal, wherein the measurement object list comprises at least two different system frequency points;

receiving a measurement report uploaded by the terminal in a preset time period, wherein the measurement report is obtained by the terminal based on signal detection of the at least two different system frequency points;

selecting a target frequency point from the inter-system frequency points corresponding to the received measurement report, wherein the target frequency point is one of the at least two inter-system frequency points;

and acquiring a redirection instruction based on the target frequency point and sending the redirection instruction to the terminal.

Optionally, after receiving the measurement report uploaded by the terminal within a preset time period, before selecting a target frequency point from the inter-system frequency points corresponding to the received measurement report, the method further includes:

after the preset time period is over, generating a terminal context release request and sending the terminal context release request to a core network control module;

and receiving a terminal context release instruction fed back by the core network control module.

Optionally, the receiving, within the preset time period, the measurement report uploaded by the terminal includes:

after receiving a first measurement report uploaded by the terminal, starting timing;

receiving a measurement report uploaded by the terminal within an appointed timing duration;

and if the timing exceeds the appointed timing duration, prohibiting receiving the measurement report uploaded by the terminal.

Optionally, the selecting a target frequency point from the inter-system frequency points corresponding to the received measurement report includes:

and selecting the different system frequency points meeting the preset priority condition as target frequency points based on the priority corresponding to the different system frequency points corresponding to the received measurement report.

Optionally, the method further includes:

analyzing the measurement report to obtain the priority of the different system frequency points corresponding to the measurement report;

and storing the different system frequency points and the priorities of the different system frequency points.

A heterogeneous system redirection device, comprising:

the list issuing module is used for issuing a measurement object list to the terminal based on the redirection trigger information, wherein the measurement object list comprises at least two different system frequency points;

a report receiving module, configured to receive a measurement report uploaded by the terminal within a preset time period, where the measurement report is obtained by the terminal based on signal detection of the at least two inter-system frequency points;

a frequency point selection module, configured to select a target frequency point from the inter-system frequency points corresponding to the received measurement report, where the target frequency point is one of the at least two inter-system frequency points;

and the instruction sending module is used for obtaining a redirection instruction based on the target frequency point and sending the redirection instruction to the terminal.

Optionally, the report receiving module includes:

the first receiving submodule is used for starting timing after receiving the first measurement report uploaded by the terminal;

the second receiving submodule is used for receiving the measurement report uploaded by the terminal within the appointed timing duration;

and the third receiving submodule is used for timing to exceed the appointed timing duration and forbidding receiving of the measurement report uploaded by the terminal.

Optionally, the frequency point selection module is specifically configured to:

Optionally, the method further includes:

the report analysis module is used for analyzing the measurement report to obtain the priority of the different system frequency points corresponding to the measurement report;

and the priority storage module is used for storing the different system frequency points and the priorities of the different system frequency points.

An electronic device, the electronic device comprising:

a communication interface;

a memory for storing a program for implementing any one of the above-described heterogeneous system redirection methods;

and the processor is used for loading and executing the program stored in the memory so as to realize any one of the above-mentioned heterogeneous system redirection methods.

As can be seen from the foregoing technical solutions, the present application provides a method, an apparatus and an electronic device for inter-system redirection, which are applied to a base station, where the method includes: based on redirection trigger information, issuing a measurement object list to a terminal, wherein the measurement object list comprises at least two different system frequency points; receiving a measurement report uploaded by the terminal in a preset time period, wherein the measurement report is obtained by the terminal based on signal detection of the at least two different system frequency points; selecting a target frequency point from the inter-system frequency points corresponding to the received measurement report, wherein the target frequency point is one of the at least two inter-system frequency points; and acquiring a redirection instruction based on the target frequency point and sending the redirection instruction to the terminal. In the scheme, the base station sends a measurement object list to the terminal based on redirection trigger information, so that the terminal uploads a measurement report to the base station after measuring each different system frequency point in the measurement object list, the base station receives the measurement report uploaded by the terminal within a preset time period, one different system frequency point corresponding to the received measurement report is selected as a target frequency point, and a redirection instruction is obtained based on the target frequency point and sent to the terminal. Compared with the prior art that the different-system frequency point corresponding to the last received measurement report is used as the redirection frequency point, the target frequency point selected in the scheme is one of the different-system frequency points corresponding to the received measurement report in the preset time period, the determined target frequency point is better in quality, and the terminal can be ensured to reside in the cell of the redirection frequency point when being redirected.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on the provided drawings without creative efforts.

FIG. 1 illustrates an exemplary system architecture diagram to which some embodiments of the inter-system redirection methods or inter-system redirection apparatus of the present application may be applied;

fig. 2 is a flowchart of an embodiment 1 of a method for redirecting a heterogeneous system according to the present application;

fig. 3 is a flowchart of an embodiment 2 of a method for inter-system redirection provided by the present application;

fig. 4 is a flowchart of an embodiment 3 of a method for redirecting a heterogeneous system according to the present application;

fig. 5 is a flowchart of an embodiment 4 of a method for redirecting a heterogeneous system according to the present application;

fig. 6 is a schematic structural diagram of an inter-system redirection device 1 according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of an electronic device in embodiment 1 provided in the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 illustrates an exemplary system architecture 100 to which some embodiments of the inter-system redirection method or the inter-system redirection apparatus of the present application may be applied.

As shown in fig. 1, the system architecture 100 may include a terminal 101, a base station 102, and a core network 103. The terminal 101 and the base station 102 may be connected through wireless network communication, and the core network 103 and the base station 102 may be connected through wireless network communication. Various messages, requests, instructions and other data can be transmitted between the terminal 101 and the base station 102, and various messages, requests, instructions and other data can be transmitted between the base station 102 and the core network 103.

Various client applications, such as a mobile telephony application, a short message application, a cellular network application, etc., may be installed on the terminal 101.

The terminal 101 may be hardware or software. The number of terminals 101 may be one or more. When the terminal 101 is hardware, it may be various electronic devices having a Mobile communication function, including but not limited to smart phones, tablet computers, wearable devices, vehicle-mounted devices, Augmented Reality (AR)/Virtual Reality (VR) devices, Ultra-Mobile Personal computers (UMPC), netbooks, Personal Digital Assistants (PDA), e-book readers, MP3(Moving Picture Experts Group Audio Layer III, MP Layer 3) players, 4(Moving Picture Experts Group Audio Layer IV, MP Layer 4) players, laptop portable computers, desktop computers, smart meters, smart water meters, smart cat eyes, gateways, and other electronic devices. When the terminal 101 is software, it can be installed in the electronic devices listed above. It may be implemented as multiple pieces of software or software modules (e.g., to provide distributed services) or as a single piece of software or software module. The embodiment of the present application does not set any limit to the specific type of the electronic device.

In a mobile communication network, the terminal 101 may be referred to as a User Equipment (UE).

The base station 102, i.e., a public mobile communication base station, is an interface device for a mobile device to access the internet, and is a form of a radio station, which is a radio transceiver station for information transmission with a mobile phone terminal through a mobile communication switching center in a certain radio coverage area. The base station 102 may be a base station supporting at least one of the various generations of mobile communication technology, such as: third generation mobile communication technology (3G) base stations, fourth generation mobile communication technology (4G) base stations, fifth generation mobile communication technology (5G) base stations, sixth generation mobile communication technology (6G) base stations, and the like.

The Core Network (CN) 103 may be a Core Network of at least one mobile communication technology in various generations of mobile communication technologies, such as: a third generation mobile communication technology (3G) core network, a fourth generation mobile communication technology (4G) core network, a fifth generation mobile communication technology (5G) core network, a sixth generation mobile communication technology (6G) core network, and the like. The core network 103 is one of three major components of a mobile communication network (access network, bearer network, core network), and is mainly responsible for processing and distributing data. The core network 103 may include a plurality of network elements (NE, Net Element), which are network Element entities with certain functions and may be referred to as: and a core network control module. As for the 5G core network, network elements mainly include an Access and Mobility Management Function (AMF), a Session Management Function (SMF), and a User Plane Function (UPF). Among them, the AMF supports UEs with different mobility management requirements, and performs main tasks including: Non-Access Stratum (NAS) signaling terminals, NAS signaling security, Access Stratum security control, inter-core network node signaling for mobility between 3GPP Access networks, idle mode UE reachability (including control and execution of paging retransmissions), registration area management, support for intra-and inter-system mobility, Access authentication, Access authorization (including roaming permission checking), mobility management control (subscription and policy), support for network slicing and SMF selection, etc. The core network 103 shown in fig. 1 may be specifically an AMF, since the AMF may be responsible for supporting intra-system and inter-system mobility. Namely: the base station 102 communicates with the terminal 101 and the AMF respectively to implement the inter-system redirection method or the inter-system redirection apparatus of the present application.

It should be understood that the number of terminals 101, base stations 102 and core networks 103 in fig. 1 is merely illustrative. There may be any number of terminals 101, base stations 102, and core networks 103, as desired for an implementation.

As shown in fig. 2, a flowchart 200 of an embodiment 1 of a method for inter-system redirection provided by the present application is applied to a base station, and the method includes the following steps:

step S201: and based on the redirection trigger information, issuing a measurement object list to the terminal, wherein the measurement object list comprises at least two different system frequency points.

Optionally, the redirection triggering information is information that may trigger a redirection procedure.

In an optional embodiment, the redirection triggering information is generated by the terminal based on the detection that the signal quality of the serving cell meets a preset threshold condition. After the terminal generates the redirection trigger information, the terminal may send the generated redirection trigger information to the base station, and then the base station executes step S201. Specifically, the redirection triggering information may be: a measurement report indicating that the signal quality of the serving cell meets a preset threshold condition. The preset threshold condition may be: below a threshold value. In practical applications, the redirection trigger information may be an a2 measurement report, and the a2 measurement report is also referred to as an a2 Event (Event a 2). The serving cell refers to a cell currently providing a communication service for the UE. Optionally, the signal quality may be divided into a plurality of levels, and the preset threshold condition may be a signal quality threshold condition corresponding to one or some of the levels. For example: the method comprises the steps of dividing signal quality into a high quality grade, a medium quality grade and a low quality grade, wherein each grade has a corresponding signal quality threshold condition; the redirection trigger information may be generated by the terminal based on detecting that the signal quality of the serving cell meets the signal quality threshold condition of the medium quality class or meets the signal quality threshold condition of the low quality class.

Optionally, the communication network provided by the serving cell for the terminal may be a 5G network, and the inter-system frequency point in the measurement object list sent by the base station to the terminal may be a frequency point of a 4G network. Namely: in an alternative embodiment, the embodiment shown in fig. 2 may be used to implement a process of redirection from a 5G network to a 4G network, or the steps of the embodiment shown in fig. 2 are partial steps in a process of redirection from a 5G network to a 4G network. Of course, in other embodiments, the embodiment shown in fig. 2 may also be used to implement a process of redirection from a 4G network to a 5G network, or a process of redirection from a certain 4G network to another 4G network.

Optionally, the signal quality may be at least one of multiple parameters such as signal strength, signal stability, packet loss rate, and the like.

Of course, in other embodiments, the redirection triggering information may also be sent by the UE to the base station without measuring the signal quality of the serving cell, or sent by the UE to the base station when measuring that there is an inter-system cell with better signal quality than the serving cell. One of the reasons why the UE sends the redirection trigger information to the base station without measuring the signal quality of the serving cell may be: the number of UEs currently served by the serving cell exceeds a preset number. At this time, at least part of the UE may be transferred to other cells through the inter-system redirection, thereby reducing the load of the serving cell.

Of course, the redirection triggering information may also be sent by the UE to the base station in other situations. In another alternative embodiment, the redirection triggering information may be generated by the base station itself, or may be sent to the base station by another device (e.g., a core network) besides the UE. The reason why the base station generates the redirection trigger information by itself may be various, for example: the base station needs to test the inter-system redirection function of the UE.

In an optional embodiment, the base station may send the measurement object list to the UE alone, or may add the measurement object list to some information and send the information to the UE, for example: adding into the measuring object. The measurement target is a part of a radio resource control Reconfiguration command (RRC Reconfiguration) transmitted from the base station to the UE. For simplicity, the radio resource control in the subsequent text of this application is collectively replaced with RRC.

In an optional embodiment, one or more of the parameters such as the measurement duration, the threshold, the measurement mode, and the like may also be sent to the UE simultaneously or sequentially. Optionally, the present application may send parameters such as the measurement duration, the threshold, the measurement mode, and the like, to the UE together with the measurement object list. For example: and adding parameters such as the measurement duration, the threshold value, the measurement mode and the like into the RRC Reconfiguration and sending the RRC Reconfiguration to the UE. The measurement mode may be a measurement mode of SSB (Synchronization Signal and PBCH block) or CSI _ RS (Channel State Information-Reference Signal) type.

The inter-system frequency points in the measurement object list may be obtained by the base station based on the frequency points of the neighboring cells of the serving cell.

Step S202: and receiving a measurement report uploaded by the terminal in a preset time period, wherein the measurement report is obtained by the terminal based on signal detection of at least two different system frequency points.

In an optional embodiment, the measurement report carries at least one inter-system frequency point.

Optionally, there may be multiple measurement reports received in step S202, and at least one measurement report received in step S202 may be a first type measurement report indicating that the signal quality of one inter-system frequency point is higher than a threshold, and/or at least one measurement report received in step S202 may be a second type measurement report indicating that the signal quality of the serving cell is lower than a first threshold and the signal quality of one inter-system frequency point is higher than a second threshold.

In an alternative embodiment, the first threshold value may be greater than the second threshold value. In another alternative embodiment, the first threshold value may be equal to the second threshold value. In another alternative embodiment, the first threshold value may be less than the second threshold value.

Wherein, the first type measurement report can be B1 Event (Event B1), and the second type measurement report can be B2 Event (Event B2). Optionally, the threshold used by the B1 event may be the same as or different from the threshold used by the a2 event. It is to be understood that, in the case that the redirection triggering information is generated by the terminal based on the detection that the signal quality of the serving cell meets the preset threshold condition, the B1 event may indicate that: there is an inter-system neighbor whose signal quality is above the threshold for the B1 event. For the B2 event, by itself, it may indicate: the signal quality of the service cell is lower than a first threshold value, and the signal quality of an inter-system frequency point is higher than a second threshold value.

The preset time period in step S202 may be a time period from when the base station issues the measurement object list to the terminal and receives the first measurement report uploaded by the terminal. The duration of the preset time period in step S202 may be a predetermined timing duration, and the predetermined timing duration may be controlled by a timer.

In an optional embodiment, step S202 receives the measurement report uploaded by the terminal only within the preset time period, and prohibits receiving the measurement report uploaded by the terminal outside the preset time period.

In an optional embodiment, the receiving, within the preset time period, the measurement report uploaded by the terminal may specifically include:

after receiving a first measurement report uploaded by a terminal, starting timing;

receiving a measurement report uploaded by a terminal within an appointed timing duration;

and when the timing exceeds the appointed timing duration, prohibiting receiving the measurement report uploaded by the terminal.

The appointed timing duration is the duration of the preset time period.

In an alternative embodiment, the application may save the received measurement report.

Optionally, one inter-system cell may have one or more inter-system frequency points. Different system frequency points of different system cells can be completely the same, partially the same or completely different.

In an alternative embodiment, one measurement report may be obtained by the terminal detecting a signal of an inter-system cell based on an inter-system frequency point. In another alternative embodiment, one measurement report may be obtained by the terminal detecting signals of at least two inter-system cells based on one inter-system frequency point. In another alternative embodiment, one measurement report may be obtained by the terminal detecting signals of one inter-system cell based on at least two inter-system frequency points. In another alternative embodiment, one measurement report may be obtained by the terminal detecting signals of at least two different system cells based on at least two different system frequency points.

And if one measurement report is obtained by the terminal based on the signal detection of one different system frequency point, one measurement report corresponds to one different system frequency point.

Step S203: and selecting a target frequency point from the different system frequency points corresponding to the received measurement report, wherein the target frequency point is one of at least two different system frequency points.

Optionally, there are multiple ways of selecting a target frequency point from the inter-system frequency points corresponding to the received measurement report, for example, any one of the ways one to four:

and in the first mode, one different system frequency point is selected from different system frequency points corresponding to the received measurement reports as a target frequency point according to the sequence of the received measurement reports.

The first mode may specifically be: and taking an inter-system frequency point corresponding to the first received measurement report as a target frequency point.

And secondly, selecting one different system frequency point from different system frequency points corresponding to the received measurement report as a target frequency point according to the sequence of the signal quality in the measurement report from high to low.

The second mode may specifically be: and taking one different system frequency point corresponding to the received measurement report with the highest signal quality as a target frequency point.

And thirdly, selecting one different system frequency point from the different system frequency points corresponding to the received measurement report as a target frequency point according to the priority of the measurement report.

The third mode may specifically be: and taking one different system frequency point corresponding to the received measurement report with the highest priority as a target frequency point.

And fourthly, randomly selecting one different system frequency point from the different system frequency points corresponding to the received measurement report as a target frequency point.

For the first mode, in some cases, the measurement report of the inter-system frequency point of the inter-system cell closer to the UE is completed faster, so that the first mode can determine an inter-system frequency point corresponding to the first received measurement report as a target frequency point, and thus the target frequency point selected by the application is the inter-system frequency point of the inter-system cell closer to the UE. The different system cells with the close distance can provide stable and high-quality communication service for the UE.

For the second mode, the measurement report may carry signal quality or information characterizing signal quality. It can be understood that, one inter-system frequency point corresponding to the measurement report with the highest signal quality is selected as the target frequency point, so that the inter-system cell with the target frequency point can provide relatively stable and high-quality communication service for the UE.

For the third mode, the priority of the measurement report may be obtained from a preset priority profile. The pre-set priority profile may be stored in the base station or other device. Optionally, the priority levels may be set for a plurality of frequency points in advance, and the frequency points and the priority levels may be stored in a priority level configuration file correspondingly. Therefore, after the measurement report is obtained, the priority corresponding to the frequency point can be obtained from the preset priority configuration file according to the frequency point corresponding to the measurement report, and the priority is used as the priority of the measurement report. In practical application, the priority can be set for a plurality of frequency points based on a communication protocol. Of course, the priority can be set for a plurality of frequency points based on the historical data of the frequency points (such as the historical dwell success rate of the frequency points and the historical signal quality of the frequency points). Optionally, step S203 may specifically include: and selecting the different system frequency points meeting the preset priority condition as target frequency points based on the priorities corresponding to the different system frequency points corresponding to the received measurement reports. Optionally, the preset priority condition may be: the highest priority among the received measurement reports. Of course, the preset priority condition may also be other priority requirements, such as: the priority is second in each received measurement report.

Optionally, in the case that the target frequency point is selected in the first usage mode of the present application, the duration of the preset time period in step S202 may be less than the preset duration. In the present application, when the target frequency point is selected in a manner other than the first manner, the duration of the preset time period in step S202 may be not less than the preset duration.

Step S204: and acquiring a redirection instruction based on the target frequency point and sending the redirection instruction to the terminal.

The redirection instruction may be an instruction for triggering the terminal to perform a redirection process. Optionally, the redirection instruction may specifically be a terminal CONTEXT RELEASE instruction (UE CONTEXT RELEASE COMMAND) carrying the target frequency point

Optionally, the specific process of obtaining the redirection instruction based on the target frequency point in step S204 may include:

and adding the target frequency point into the terminal context release instruction to obtain the terminal context release instruction carrying the target frequency point.

It can be understood that, after the redirection instruction is sent to the terminal in step S204 in the present application, the terminal may reselect the inter-system cell based on the target frequency point and reside on the target frequency point.

In the scheme, the base station sends a measurement object list to the terminal based on redirection trigger information, so that the terminal uploads a measurement report to the base station after measuring each different system frequency point in the measurement object list, the base station receives the measurement report uploaded by the terminal within a preset time period, one different system frequency point corresponding to the received measurement report is selected as a target frequency point, and a redirection instruction is obtained based on the target frequency point and sent to the terminal. Compared with the prior art that the different-system frequency point corresponding to the last received measurement report is used as the redirection frequency point, the target frequency point selected in the scheme is one of the different-system frequency points corresponding to the received measurement report in the preset time period, the determined target frequency point is better in quality, and the terminal can be ensured to reside in the cell of the redirection frequency point when being redirected.

As shown in fig. 3, a flowchart 300 of an embodiment 2 of a method for inter-system redirection provided in the present application is applied to a base station, and the method includes the following steps:

step S301: and based on the redirection trigger information, issuing a measurement object list to the terminal, wherein the measurement object list comprises at least two different system frequency points.

Step S301 is the same as step S201 in embodiment 1, and is not described again.

Step S302: and receiving a measurement report uploaded by the terminal in a preset time period, wherein the measurement report is obtained by the terminal based on signal detection of at least two different system frequency points.

Step S302 is the same as step S202 in embodiment 1, and is not described again.

Step S303: and after the preset time period is over, generating a terminal context release request and sending the terminal context release request to the core network control module.

Optionally, step S303 may send a terminal CONTEXT RELEASE REQUEST (UE CONTEXT RELEASE REQUEST) to the AMF.

Step S304: and receiving a terminal context release instruction fed back by the core network control module.

Optionally, step S304 may receive a terminal CONTEXT RELEASE COMMAND (UE CONTEXT RELEASE COMMAND) fed back by the AMF.

Step S305: and selecting a target frequency point from the different system frequency points corresponding to the received measurement report, wherein the target frequency point is one of at least two different system frequency points.

Step S305 is the same as step S203 in embodiment 1, and is not described again.

Step S306: and acquiring a redirection instruction based on the target frequency point and sending the redirection instruction to the terminal.

Step S306 is the same as step S204 in embodiment 1, and is not described again.

As shown in fig. 4, a flowchart 400 of embodiment 3 of a method for redirecting a heterogeneous system provided by the present application is provided, where the method is applied to a base station, and the method includes the following steps:

step S401: and based on the redirection trigger information, issuing a measurement object list to the terminal, wherein the measurement object list comprises at least two different system frequency points.

Step S401 is the same as step S201 in embodiment 1, and is not described again.

Step S402: and receiving a measurement report uploaded by the terminal in a preset time period, wherein the measurement report is obtained by the terminal based on signal detection of at least two different system frequency points.

Step S402 is the same as step S202 in embodiment 1, and is not described again.

Step S403: and analyzing the measurement report to obtain the priority of the different system frequency points corresponding to the measurement report.

In an optional embodiment, the method can analyze the measurement report to obtain the different system frequency points carried by the measurement report; and then searching the priority corresponding to the different system frequency point from a preset priority configuration file and determining the searched priority as the priority of the different system frequency point corresponding to the measurement report.

In another optional embodiment, the method can analyze the measurement report to obtain the inter-system frequency point carried by the measurement report and the signal quality of the inter-system frequency point; and then determining the priority of the different system frequency points based on the signal quality.

Of course, there are other alternative implementation processes in step S403, and the application is not limited thereto.

Step S404: and storing the different system frequency points and the priorities of the different system frequency points.

The method and the device can correspondingly store the different system frequency points and the priorities of the different system frequency points.

Step S405: and selecting the different system frequency points meeting the preset priority condition as target frequency points based on the priorities corresponding to the different system frequency points corresponding to the received measurement reports.

Step S405 is already described in embodiment 1, and is not described again.

Step S406: and acquiring a redirection instruction based on the target frequency point and sending the redirection instruction to the terminal.

Step S406 is the same as step S204 in embodiment 1, and is not repeated.

Fig. 5 is a flowchart 500 of an embodiment 4 of a method for inter-system redirection according to the present application, and the method is applied to a base station. In FIG. 5, DU (distributed Unit), CU-CP (Centralized Unit-Control Plan) and CU-UP (Centralized Unit-User Plan) are all functional units of the base station, wherein DU (distributed Unit) is a distributed Unit, CU-CP (Centralized Unit-Control Plan) is a Centralized Control Unit, and CU-UP (Centralized Unit-User Plan) is a Centralized User Unit. The EUTRAN (Evolved UMTS Terrestrial Radio Access Network) in fig. 5 is a 4G Network, and fig. 5 shows a process of redirection from the 5G Network to the 4G Network.

As shown in fig. 5, the method comprises the steps of:

step S501: the CU-CP sends a downlink RRC message transfer instruction to the DU (DL RRC MESSAGE TRANSFER).

Step S502: the DU sends an RRC Reconfiguration command (RRC Reconfiguration) to the UE.

Step S503: the DU receives an RRC Reconfiguration Complete message (RRC Reconfiguration Complete) fed back by the UE after the RRC Reconfiguration is Complete.

Step S504: the DU receives an a2 measurement report sent by the UE, where the a2 measurement report is generated when the UE measures the signal quality of the serving cell and the measured signal quality of the serving cell is lower than a threshold value.

Step S505: the DU sends an uplink RRC message transfer instruction (UL RRC MESSAGE TRANSFER) to the CU-CP.

Step S506: the CU-CP sends a UE CONTEXT MODIFICATION REQUEST (UE CONTEXT MODIFICATION REQUEST) to the DU.

Step S507: the DU sends a UE CONTEXT MODIFICATION RESPONSE (UE CONTEXT MODULATION RESPONSE) to the CU-CP.

Step S508: the CU-CP maintains GAP information.

When the UE performs the pilot frequency measurement, a part of time (namely GAP time measurement) needs to be reserved, and in this period of time, the UE does not send and receive any data, but tunes the receiver to the frequency point of the target cell to perform the pilot frequency measurement, and then transfers to the current cell after the GAP time is over. The information is configured by the base station to be sent to the UE.

Step S509: the CU-CP sends a downlink RRC message transfer instruction to the DU (DL RRC MESSAGE TRANSFER).

DL RRC MESSAGE TRANSFER in step S509 carries information to be used by the UE to measure the signal quality, such as: different system frequency points, threshold values, measuring duration, measuring types and the like.

Step S510: the DU sends an RRC Reconfiguration command (RRC Reconfiguration) to the UE.

The RRC Reconfiguration in step S510 includes an inter-system frequency point, and optionally, may further include a threshold, a measurement duration, a measurement type, and the like.

Step S511: the DU receives an RRC Reconfiguration Complete message (RRC Reconfiguration Complete) transmitted by the UE.

Step S512: the DU receives a B1 measurement report or a B2 measurement report transmitted by the UE.

The measurement report in step S512 is obtained by the UE measuring the frequency points of the different systems. In step S512, the measurement report received by the DU is the measurement report of the inter-system frequency point received for the first time.

Step S513: the DU sends an uplink RRC message transfer instruction (UL RRC MESSAGE TRANSFER) to the CU-CP.

The UL RRC MESSAGE TRANSFER in step S513 carries a B1 measurement report or a B2 measurement report.

Step S514: and the CU-CP starts a timer, obtains the different system frequency points from the measurement report, determines the priority of the different system frequency points, and stores the different system frequency points and the priority thereof.

Step S515: the DU receives a B1 measurement report or a B2 measurement report transmitted by the UE.

The measurement report in step S515 is obtained by measuring the frequency point of the different system by the UE. In step S515, the measurement report received by the DU is the measurement report of the inter-system frequency point received for the second time.

Step S516: the DU sends an uplink RRC message transfer instruction (UL RRC MESSAGE TRANSFER) to the CU-CP.

The UL RRC MESSAGE TRANSFER in step S516 carries a B1 measurement report or a B2 measurement report.

Step S517: and the CU-CP acquires the different system frequency points from the measurement report, determines the priority of the different system frequency points, and stores the different system frequency points and the priority thereof.

Step S518: the DU receives a B1 measurement report or a B2 measurement report transmitted by the UE.

The measurement report in step S518 is obtained by measuring the inter-system frequency point by the UE. In step S518, the measurement report received by the DU is the measurement report of the inter-system frequency point received for the third time.

Step S519: the DU sends an uplink RRC message transfer instruction (UL RRC MESSAGE TRANSFER) to the CU-CP.

The UL RRC MESSAGE TRANSFER in step S519 carries a B1 measurement report or a B2 measurement report.

Step S520: and the CU-CP acquires the different system frequency points from the measurement report, determines the priority of the different system frequency points, and stores the different system frequency points and the priority thereof.

Step S521: and when the timer exceeds the appointed timing duration, the CU-CP controls the base station to stop receiving the measurement report of the different system frequency points.

Step S522: the CU-CP sends a UE CONTEXT RELEASE REQUEST (UE CONTEXT RELEASE REQUEST) to the AMF.

Step S523: the CU-CP receives a UE CONTEXT RELEASE COMMAND (UE CONTEXT RELEASE COMMAND) sent by the AMF.

Step S524: and the CU-CP selects a target frequency point from the frequency points of different systems based on the stored priority.

Step S525: the CU-CP sends a UE CONTEXT RELEASE COMMAND (UE CONTEXT RELEASE COMMAND) to the DU.

Optionally, the UE CONTEXT RELEASE COMMAND in step S525 carries the target frequency point.

Step S526: the DU sends an RRC Release order (RRC Release) to the UE.

The RRC release instruction in step S526 carries the target frequency point.

Step S527: the DU sends a UE CONTEXT RELEASE COMPLETE message (UE CONTEXT RELEASE COMPLETE) to the CU-CP after the UE COMPLETEs the RRC RELEASE.

Step S528: the CU-CP sends a PDU (Protocol Data Unit) SESSION RELEASE INDICATION (PDU SESSION RELEASE INDICATION) to the CU-UP in order to let the CU-UP RELEASE the PDU SESSION resources. .

Step S529: the CU-CP sends a UE CONTEXT RELEASE COMPLETE message (UE CONTEXT RELEASE COMPLETE) to the AMF.

And then, the UE can reside on the target frequency point, so that the inter-system redirection is completed.

As shown in fig. 6, a schematic structural diagram 600 of an embodiment 1 of a heterogeneous system redirection apparatus provided by the present application may include:

the list issuing module 601 is configured to issue a measurement object list to the terminal based on the redirection trigger information, where the measurement object list includes at least two inter-system frequency points.

A report receiving module 602, configured to receive, in a preset time period, a measurement report uploaded by a terminal, where the measurement report is obtained by the terminal through signal detection based on at least two different system frequency points.

A frequency point selecting module 603, configured to select a target frequency point from the inter-system frequency points corresponding to the received measurement report, where the target frequency point is one of at least two inter-system frequency points.

And an instruction sending module 604, configured to obtain a redirection instruction based on the target frequency point and send the redirection instruction to the terminal.

The apparatus shown in fig. 6 may be applied in a base station.

Optionally, the apparatus shown in fig. 6 may further include:

the request sending module is used for generating a terminal context release request and sending the terminal context release request to the core network control module after the preset time period is finished;

the request sending module may be triggered after the report receiving module 602 receives the measurement report uploaded by the terminal within a preset time period and before the frequency point selecting module 603 selects a target frequency point from the inter-system frequency points corresponding to the received measurement report.

And the instruction receiving module is used for receiving the terminal context release instruction fed back by the core network control module.

Optionally, the report receiving module 602 may include:

and the third receiving submodule is used for timing the time exceeding the appointed timing duration and forbidding receiving the measurement report uploaded by the terminal.

Optionally, the frequency point selecting module 603 may be specifically configured to:

and selecting the different system frequency points meeting the preset priority condition as target frequency points based on the priorities corresponding to the different system frequency points corresponding to the received measurement reports.

Optionally, the apparatus shown in fig. 6 may further include:

and the report analysis module is used for analyzing the measurement report to obtain the priority of the different system frequency points corresponding to the measurement report.

The utility model provides a different system reorientation device, based on redirection trigger information, to the terminal issuing measurement object list to make the terminal carry out the measurement to each different system frequency point in this measurement object list and upload the measurement report to the base station, receive the measurement report that the terminal uploaded in the predetermined time quantum, and, select one as the target frequency point from the different system frequency point that the measurement report received corresponds, obtain the redirection instruction and send to the terminal based on the target frequency point. Compared with the prior art that the different-system frequency point corresponding to the last received measurement report is used as the redirection frequency point, the target frequency point selected in the scheme is one of the different-system frequency points corresponding to the received measurement report in the preset time period, the determined target frequency point is better in quality, and the terminal can be ensured to reside in the cell of the redirection frequency point when being redirected.

Corresponding to the embodiment of the inter-system redirection method provided by the application, the application also provides an embodiment of the electronic device applying the inter-system redirection method.

Fig. 7 is a schematic structural diagram of an electronic device embodiment 1 provided in the present application, where the electronic device includes the following structures:

a communication interface 701;

a memory 702 for storing a program for implementing the inter-system redirection method as provided by any embodiment of the present application;

the processor 703 is configured to load and execute a program stored in the memory to implement the inter-system redirection method according to any embodiment of the present application.

The present application also provides a computer-readable storage medium storing a program implementing the inter-system redirection method provided as any embodiment of the present application.

The present application further provides an application program, which when executed by the processor 703 implements the inter-system redirection method as provided in any embodiment of the present application.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the device provided by the embodiment, the description is relatively simple because the device corresponds to the method provided by the embodiment, and the relevant points can be referred to the method part for description.

The previous description of the provided embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features provided herein.

Claims

1. A method for inter-system redirection comprises the following steps:

2. The method according to claim 1, wherein after receiving the measurement report uploaded by the terminal within a preset time period, before selecting a target frequency point from the inter-system frequency points corresponding to the received measurement report, the method further comprises:

3. The method of claim 1, wherein the receiving of the measurement report uploaded by the terminal within a preset time period comprises:

4. The method of claim 1, wherein the selecting a target frequency point from the inter-system frequency points corresponding to the received measurement report comprises:

5. The method of claim 4, further comprising:

6. A heterogeneous system redirection device, comprising:

7. The inter-system redirection device of claim 6, the report receiving module comprising:

8. The inter-system redirection device of claim 6, wherein the frequency point selection module is specifically configured to:

9. The inter-system redirection device of claim 8, further comprising:

10. An electronic device, the electronic device comprising:

a communication interface;

a memory for storing a program for implementing the inter-system redirection method according to any one of claims 1 to 5;

a processor for loading and executing the program stored in the memory to implement the inter-system redirection method according to any one of claims 1 to 5.