Network selection method and system under vo nr service, electronic device and medium

Abstract

This disclosure provides a network selection method, system, electronic device, and storage medium for VoNR services to address the issue of unreliable voice service quality in overlapping areas of shared and non-shared networks. The method includes: responding to a UE entering an overlapping area of ​​shared and non-shared cells in VoLTE mode; acquiring signal strength values ​​of different PLMNs (Plnums) at the same frequency point corresponding to different operators in network sharing, including the UE's own operator; determining whether the signal strength value of the PLMN corresponding to the UE's own operator meets preset conditions compared to the acquired signal strength values ​​of the PLMNs corresponding to other operators; if so, sending test packets to the PLMNs corresponding to the UE's own operator and the other operators respectively to verify whether the voice link is established; if established, switching the voice service to VoNR. This disclosure can improve the user's voice service quality.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, specifically to a network selection method under VoNR service, a network selection system under VoNR service, an electronic device, and a computer-readable storage medium. Background Technology

[0002] Network co-construction and sharing among operators can save on construction costs, effectively reduce carbon emissions, and significantly improve the user experience. However, co-construction and sharing is still in its initial stages, and poor user experience remains a problem in co-construction contribution areas. Currently, a simple equivalent method is used to minimize the impact on users when broadcasting different PLMNs (Public Land Mobile Network) in co-construction and sharing areas. However, the continuity of VoNR (Voice over New Radio) services is not considered for areas with overlapping coverage between co-construction and non-co-construction and sharing areas, meaning that voice service quality cannot be guaranteed for users in these overlapping areas. Summary of the Invention

[0003] To at least address the technical problem of unreliable voice service quality in overlapping areas of co-built and non-co-built and shared infrastructure in existing technologies, this disclosure provides a network selection method, a network selection system, an electronic device, and a computer-readable storage medium under VoNR services. These methods can improve the continuity capability of VoNR services, enable smooth switching of voice services to VoNR, and enhance the voice service quality for users in overlapping areas of co-built and non-co-built and shared infrastructure.

[0004] Firstly, this disclosure provides a network selection method for VoNR services, wherein the operator where the UE is located supports VoNR services, and the method includes:

[0005] In response to a UE entering the overlapping area of ​​a shared cell and a non-shared cell in a VoLTE (Voice over long-term evolution) state, the signal strength values ​​of different PLMNs at the same frequency point corresponding to different operators in the network co-construction and sharing are obtained, wherein the different operators include the operator where the UE is located;

[0006] Determine whether the signal strength value of the PLMN corresponding to the UE's operator meets the preset conditions compared with the obtained signal strength values ​​of the PLMN corresponding to other operators.

[0007] If so, then send voice data test packets to the PLMN corresponding to the operator where the UE is located and the PLMN corresponding to the other operators respectively to verify whether the voice link is a working path;

[0008] If the voice link is open, the voice service will be switched to VoNR.

[0009] Furthermore, whether the signal strength value of the PLMN corresponding to the operator where the UE is located meets the preset conditions compared with the obtained signal strength values ​​of the PLMN corresponding to other operators includes:

[0010] The obtained RSRP (Reference Signal Receiving Power) strength value of the frequency point of the PLMN corresponding to other operators - the RSRP strength value of the frequency point of the PLMN corresponding to the operator where the UE is located ≤ the first preset value.

[0011] Furthermore, the method also includes:

[0012] If a complete SIP (Session Initialization Protocol) signaling process can be established on the link of the shared cell, then the voice link is considered as a path.

[0013] Furthermore, the method also includes:

[0014] If the switching of voice services to VoNR fails, the system will connect to the corresponding PLMN of the other operator.

[0015] Secondly, this disclosure provides a network selection system for VoNR services, wherein the operator where the UE is located supports VoNR services, and the system includes:

[0016] The acquisition module is configured to acquire the signal strength values ​​of different PLMNs at the same frequency point corresponding to different operators of the network co-construction and sharing in response to the UE entering the overlapping area of ​​shared and non-shared cells in the state of LTE Voice Bearer VoLTE. The different operators include the operator where the UE is located.

[0017] The judgment module is configured to determine whether the signal strength value of the PLMN corresponding to the UE's operator meets the preset conditions compared with the obtained signal strength values ​​of the PLMN corresponding to other operators.

[0018] The verification module is configured to send voice data test packets to the PLMN corresponding to the operator where the UE is located and the PLMN corresponding to the other operators respectively if the judgment module determines that the voice link is a working path.

[0019] The switching module is configured to switch the voice service to VoNR if the voice link is active.

[0020] Furthermore, whether the signal strength value of the PLMN corresponding to the operator where the UE is located meets the preset conditions compared with the obtained signal strength values ​​of the PLMN corresponding to other operators includes:

[0021] The obtained RSRP strength value of the frequency point of the PLMN corresponding to other operators - the RSRP strength value of the frequency point of the PLMN corresponding to the operator where the UE is located ≤ the first preset value.

[0022] Furthermore, the verification module is also configured as follows:

[0023] If a complete SIP signaling process can be established on the link of the shared cell, then the voice link is considered as the path.

[0024] Furthermore, the switching module is also configured as follows:

[0025] If the switching of voice services to VoNR fails, the system will connect to the corresponding PLMN of the other operator.

[0026] Thirdly, this disclosure provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and when the processor runs the computer program stored in the memory, the processor executes the network selection method under VoNR service as described in any of the first aspects.

[0027] Fourthly, this disclosure provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the network selection method under VoNR service as described in any of the first aspects above.

[0028] Beneficial effects:

[0029] The network selection method, system, electronic equipment, and storage medium for VoNR services disclosed herein can first determine the voice quality of the VoNR service to be switched to, and only agree to perform VoLTE to VoNR switch when the voice quality meets the conditions and the link is open. This improves the continuity capability of VoNR services, enables voice services to be smoothly switched to VoNR, and improves the voice service quality for users in areas where co-construction and sharing and non-co-construction and sharing overlap. Attached Figure Description

[0030] Figure 1 A flowchart illustrating a network selection method for VoNR services provided in Embodiment 1 of this disclosure;

[0031] Figure 2This is an architecture diagram of a network selection system under VoNR service provided in Embodiment 2 of this disclosure;

[0032] Figure 3 This is an architectural diagram of an electronic device provided in Embodiment 3 of this disclosure. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solutions of this disclosure, the disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments and drawings described herein are merely for explaining the invention and are not intended to limit the invention.

[0034] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence; furthermore, in the absence of conflict, the embodiments and features in the embodiments of this disclosure can be arbitrarily combined with each other.

[0035] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0036] In the following description, the use of suffixes such as “module,” “part,” or “unit” to denote elements is solely for the purpose of illustrative purposes and has no specific meaning in itself. Therefore, “module,” “part,” or “unit” may be used interchangeably.

[0037] The methods provided in the embodiments of this application will now be described in detail with reference to the accompanying drawings. It is understood that in the embodiments of this application, the executing entity may perform some or all of the steps in the embodiments of this application. These steps or operations are merely examples, and the embodiments of this application may also perform other operations or variations thereof. Furthermore, the various steps may be executed in different orders as presented in the embodiments of this application, and it is not necessary to execute all the operations in the embodiments of this application. Moreover, the following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0038] Figure 1 This is a flowchart illustrating a network selection method for VoNR services provided in Embodiment 1 of this disclosure. The operator where the UE is located supports VoNR services, such as... Figure 1 As shown, the method includes:

[0039] Step S101: In response to the UE entering the overlapping area of ​​shared and non-shared cells in a VoLTE state, obtain the signal strength values ​​of different PLMNs at the same frequency corresponding to different operators in the network co-construction and sharing, wherein the different operators include the operator where the UE is located;

[0040] Step S102: Determine whether the signal strength value of the PLMN corresponding to the operator where the UE is located meets the preset conditions compared with the obtained signal strength values ​​of the PLMN corresponding to other operators;

[0041] Step S103: If yes, then send voice data test packets to the PLMN corresponding to the operator where the UE is located and the PLMN corresponding to the other operators respectively to verify whether the voice link is a working path;

[0042] Step S104: If the voice link is active, switch the voice service to VoNR.

[0043] In this embodiment, we take operator A and operator B, who are co-constructing and sharing the network, as an example for explanation. Of course, there is no limit to the number of operators co-constructing and sharing. The UE is a user of operator A, that is, it has an operator A SIM card inserted, and the UE supports VoNR service; operator A broadcasts plmn1, and operator A supports VoNR service; operator B broadcasts plmn2; the RSRP strength value of the frequency point broadcasting plmn1 is RSRPA, and the RSRP strength value of the frequency point broadcasting plmn2 is RSRPB; in the co-construction and sharing area, the frequency point broadcasting plmn1 and the frequency point broadcasting plmn2 are the same frequency point.

[0044] When a UE enters the overlapping area of ​​a shared cell and a non-shared cell (either from a shared cell or a non-shared cell), the UE enters in VoLTE mode. Operator A's base station and core network in this area support VoNR, while other operators in this overlapping area do not support VoNR services. The UE is about to begin the handover from VoLTE to VoNR. To ensure a smooth handover and maintain voice service quality, the UE obtains the signal strength values ​​of different PLMNs (Plnums) on the same frequency point corresponding to different operators in the shared network to determine if preset conditions are met. If the preset conditions are met, it proves that the signal strength of the PLMN corresponding to the UE's operator is within a receptive range, thus ensuring future voice quality and agreeing to the VoLTE handover to VoNR. During the interval between VoLTE voice packet transmissions, the UE sends two empty voice data packets to each of the two PLMNs to verify whether the voice link is established.

[0045] The term "access path" refers to both the link to the PLMN corresponding to the UE's operator and the link to the PLMN corresponding to the other operator being accessible. In this case, the UE can successfully switch its voice service to VoNR. Furthermore, when both links are accessible, the link to the PLMN corresponding to the other operator can be used as a backup plan to ensure service continuity. Of course, if only the link to the PLMN corresponding to the UE's operator is accessible, the voice service can still be switched to VoNR. In this case, the accessibility of the link has been verified, which can guarantee a smooth service continuity to a certain extent.

[0046] Furthermore, whether the signal strength value of the PLMN corresponding to the operator where the UE is located meets the preset conditions compared with the obtained signal strength values ​​of the PLMN corresponding to other operators includes:

[0047] The obtained RSRP (Reference Signal Receiving Power) strength value of the frequency point of the PLMN corresponding to other operators - the RSRP strength value of the frequency point of the PLMN corresponding to the operator where the UE is located ≤ the first preset value.

[0048] The first preset value can be set according to the actual situation, such as 4-8 dBm, preferably 6 dBm. If the difference between the RSRP values ​​of the two signals meets the preset condition, it indicates that the signals of the two signals are within an acceptable range, and the difference in voice quality may not be too large regardless of which link is switched to, thus ensuring service continuity. If the preset condition is not met, the UE remains on VoLTE.

[0049] Furthermore, the method also includes:

[0050] If a complete SIP (Session Initialization Protocol) signaling process can be established on the link of the shared cell, then the voice link is considered as a path.

[0051] In overlapping areas, if a complete SIP signaling process can be established on the link of the shared cell, it indicates that the voice link is functioning correctly. Both links are checked separately to ensure a smooth handover and to have alternative solutions available, thus guaranteeing service stability.

[0052] Furthermore, the method also includes:

[0053] If the switching of voice services to VoNR fails, the system will connect to the corresponding PLMN of the other operator.

[0054] If the handover fails, it may be because VoNR is unavailable. Since other operators do not offer VoNR services, the UE will continue to use VoLTE on the corresponding PLMN link of the other operator it connects to, ensuring uninterrupted service.

[0055] Taking operators A and B as examples, in a preferred embodiment of this example, when a UE enters the overlapping area of ​​a shared cell and a non-shared cell, the UE enters in VoLTE mode. At this time, both the base station and core network of operator A in this area support VoNR, and the UE is about to begin the handover from VoLTE to VoNR. First, a determination is made: the UE receives the RSRP values ​​of two different PLMNs on the same frequency. If RSRPB - RSRPA ≤ 6 dBm, the UE sends empty voice data packets to each of the two PLMNs during the transmission interval of the VoLTE voice packets to verify whether the voice link is established. If a complete SIP signaling process can be established on the link of the shared cell, it is considered a path, and the voice service is successfully switched to VoNR.

[0056] This disclosure embodiment can first determine the voice quality of the VoNR service to be switched, and only agree to switch from VoTE to VoNR when the voice quality meets the conditions and the link is open, thereby improving the connection capability of VoNR services, enabling voice services to be smoothly switched to VoNR, and improving the voice service quality for users in areas where co-construction and sharing and non-co-construction and sharing overlap.

[0057] Figure 2 This is a network selection system for VoNR services provided in Embodiment 2 of this disclosure. The operator where the UE is located supports VoNR services, such as... Figure 2 As shown, the system includes:

[0058] The acquisition module 11 is configured to acquire the signal strength values ​​of different PLMNs at the same frequency point corresponding to different operators of the network co-construction and sharing in response to the UE entering the overlapping area of ​​shared and non-shared cells in the state of LTE Voice Bearer VoLTE. The different operators include the operator where the UE is located.

[0059] The judgment module 12 is configured to determine whether the signal strength value of the PLMN corresponding to the operator where the UE is located and the obtained signal strength values ​​of the PLMN corresponding to other operators meet preset conditions.

[0060] The verification module 13 is configured to send voice data test packets to the PLMN corresponding to the operator where the UE is located and the PLMN corresponding to the other operators respectively if the judgment module determines that it is a valid voice link.

[0061] The switching module 14 is configured to switch the voice service to VoNR if the voice link is active.

[0062] Furthermore, whether the signal strength value of the PLMN corresponding to the operator where the UE is located meets the preset conditions compared with the obtained signal strength values ​​of the PLMN corresponding to other operators includes:

[0063] The obtained RSRP strength value of the frequency point of the PLMN corresponding to other operators - the RSRP strength value of the frequency point of the PLMN corresponding to the operator where the UE is located ≤ the first preset value.

[0064] Furthermore, the verification module 13 is also configured as follows:

[0065] If a complete SIP signaling process can be established on the link of the shared cell, then the voice link is considered as the path.

[0066] Furthermore, the switching module 14 is also configured as follows:

[0067] If the switching of voice services to VoNR fails, the system will connect to the corresponding PLMN of the other operator.

[0068] This disclosure embodiment can first determine the voice quality of the VoNR service to be switched. If the quality is not met, it is retained on VoLTE. Only when the voice quality meets the conditions and the link is established will the VoLTE to VoNR switch be agreed upon. This improves the continuity capability of VoNR services, enables voice services to be smoothly switched to VoNR, and improves the voice service quality for users in areas where co-construction and sharing and non-co-construction and sharing overlap.

[0069] The VoNR service network selection system of this disclosure is used to implement the VoNR service network selection system method in Method Embodiment 1, so the description is relatively simple. For details, please refer to the relevant description in Method Embodiment 1 above, which will not be repeated here.

[0070] In addition, such as Figure 3 As shown, Embodiment 3 of this disclosure also provides an electronic device, including a memory 100 and a processor 200. The memory 100 stores a computer program. When the processor 200 runs the computer program stored in the memory 100, the processor 200 executes the various possible methods described above.

[0071] The memory 100 is connected to the processor 200. The memory 100 can be a flash memory, a read-only memory, or another type of memory. The processor 200 can be a central processing unit or a microcontroller.

[0072] Furthermore, embodiments of this disclosure also provide a computer-readable storage medium storing a computer program, which is executed by a processor using the various possible methods described above.

[0073] The computer-readable storage medium includes volatile or non-volatile, removable or non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, computer program modules or other data). Computer-readable storage media includes, but is not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory or other memory technologies, CD-ROM (Compact Disc Read-Only Memory), Digital Video Disc (DVD) or other optical disc storage, cartridges, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer.

[0074] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A network selection method for VoNR (Voice over Radio) services carried over a new air interface, characterized in that, The method includes: In response to a UE entering the overlapping area of ​​shared and non-shared cells in a network co-construction and sharing state with LTE Voice Bearer VoLTE, the signal strength values ​​of different public land mobile networks (PLMNs) at the same frequency corresponding to different operators in the network co-construction and sharing are obtained, wherein the different operators include the operator to which the UE is located; Determine whether the signal strength value of the PLMN corresponding to the UE's operator meets the preset conditions compared with the obtained signal strength values ​​of the PLMN corresponding to other operators. If so, then send voice data test packets to the PLMN corresponding to the operator where the UE is located and the PLMN corresponding to the other operators respectively to verify whether the voice link is a path. If a complete Session Initiation Protocol (SIP) signaling process can be established on the link of the shared cell, then the voice link is regarded as a path. If the voice link is open, then the voice service will be switched to VoNR; If the switching of voice services to VoNR fails, the system will connect to the corresponding PLMN of the other operator.

2. The method according to claim 1, characterized in that, Whether the signal strength value of the PLMN corresponding to the UE's operator and the obtained signal strength values ​​of the PLMN corresponding to other operators meet the preset conditions includes: The obtained reference signal received power (RSRP) strength value of the frequency point of the PLMN corresponding to other operators - the RSRP strength value of the frequency point of the PLMN corresponding to the operator where the UE is located ≤ the first preset value.

3. A network selection system for VoNR services, characterized in that, The system includes: The acquisition module is configured to, in response to a UE entering the overlapping area of ​​shared and non-shared cells in a network co-construction and sharing state with a LTE Voice Bearer VoLTE, acquire the signal strength values ​​of different PLMNs at the same frequency corresponding to different operators in the network co-construction and sharing, wherein the different operators include the operator where the UE is located; The judgment module is configured to determine whether the signal strength value of the PLMN corresponding to the UE's operator meets the preset conditions compared with the obtained signal strength values ​​of the PLMN corresponding to other operators. The verification module is configured to send voice data test packets to the PLMN corresponding to the operator where the UE is located and the PLMN corresponding to the other operators respectively if the judgment module determines that it is a valid connection. If a complete SIP signaling process can be established on the link of the shared cell, the voice link is regarded as a valid connection. The switching module is configured to switch the voice service to VoNR if the voice link is available; and, If the switching of voice services to VoNR fails, the system will connect to the corresponding PLMN of the other operator.

4. The system according to claim 3, characterized in that, Whether the signal strength value of the PLMN corresponding to the UE's operator and the obtained signal strength values ​​of the PLMN corresponding to other operators meet the preset conditions includes: The obtained RSRP strength value of the frequency point of the PLMN corresponding to other operators - the RSRP strength value of the frequency point of the PLMN corresponding to the operator where the UE is located ≤ the first preset value.

5. An electronic device, characterized in that, It includes a memory and a processor, wherein the memory stores a computer program, and when the processor runs the computer program stored in the memory, the processor executes the network selection method under VoNR service as described in any one of claims 1-2.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the network selection method for VoNR services as described in any one of claims 1-2.

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