CN111918348B - Network cell switching method and device, storage medium and electronic equipment - Google Patents

Network cell switching method and device, storage medium and electronic equipment Download PDF

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CN111918348B
CN111918348B CN202010661685.XA CN202010661685A CN111918348B CN 111918348 B CN111918348 B CN 111918348B CN 202010661685 A CN202010661685 A CN 202010661685A CN 111918348 B CN111918348 B CN 111918348B
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trigger threshold
cell
signal quality
inter
serving cell
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CN111918348A (en
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曹涛
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data

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

Abstract

The embodiment of the application discloses a network cell switching method, a device, a storage medium and electronic equipment, wherein the method comprises the following steps: in a voice call state, receiving a cell measurement configuration issued by a base station corresponding to a serving cell, wherein the cell measurement configuration comprises a first trigger threshold corresponding to the serving cell and a second trigger threshold of a different system neighbor cell, acquiring a first signal quality of the serving cell and a second signal quality of the different system neighbor cell, determining that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, and reporting a measurement report containing the first signal quality and the second signal quality to the base station based on the acquired third trigger threshold and the fourth trigger threshold or based on the acquired third trigger threshold and the fifth trigger threshold.

Description

Network cell switching method and device, storage medium and electronic equipment
Technical Field
The present disclosure relates to the field of computer technologies, and in particular, to a network cell switching method and apparatus, a storage medium, and an electronic device.
Background
With the development of communication technology and the overall improvement of the processing performance of terminals (such as mobile phones), more users begin to communicate with each other on the terminals, such as voice communication through the terminals.
When a terminal is in a Voice call, such as Voice over LTE (VoLTE) under an LTE serving cell, and once the terminal initiating the Voice call leaves the coverage area of the serving cell corresponding to the current communication system or the signal quality corresponding to the serving cell corresponding to the current communication system is poor, a network cell handover process is involved, so as to ensure that the Voice service does not drop, for example, when a user roams from an LTE network to a network coverage area corresponding to a different system neighbor cell such as a global system for mobile communications (Global System for Mobile Communication, GSM)/universal mobile communication system (Universal Mobile Telecommunication System, UMTS), in order to ensure that the Voice service does not drop, the Voice access under the original LTE serving cell needs to be switched into the GSM/network, and in particular, the handover from the serving cell of the current resident network to the different system neighbor cell can be realized through single-standby wireless Voice call continuity (Single Radio Voice Call Continuity, SRVCC).
Disclosure of Invention
The embodiment of the application provides a network cell switching method, a device, a storage medium and electronic equipment, which can timely switch service cells in the call process and improve the call quality. The technical scheme of the embodiment of the application is as follows:
in a first aspect, an embodiment of the present application provides a network cell handover method, where the method includes:
receiving cell measurement configuration issued by a base station corresponding to a serving cell in a voice call state, wherein the cell measurement configuration comprises a first trigger threshold corresponding to the serving cell and a second trigger threshold of a neighboring cell of a different system;
acquiring a first signal quality of the serving cell and a second signal quality of the inter-system neighbor cell;
determining that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, reporting a measurement report containing the first signal quality and the second signal quality to the base station based on a preset third trigger threshold corresponding to the serving cell, a preset fourth trigger threshold corresponding to the inter-system neighbor cell and a preset fifth trigger threshold corresponding to the inter-system neighbor cell, wherein the measurement report is used for indicating the base station to switch a current resident cell from the serving cell to the inter-system neighbor cell, the third trigger threshold is smaller than the first trigger threshold, and the fourth trigger threshold is smaller than the second trigger threshold and larger than the fifth trigger threshold.
In a second aspect, an embodiment of the present application provides a network cell switching apparatus, where the apparatus includes:
the measurement configuration receiving module is used for receiving cell measurement configuration issued by a base station corresponding to a service cell in a voice call state, wherein the cell measurement configuration comprises a first trigger threshold corresponding to the service cell and a second trigger threshold of a different system neighbor cell;
the signal quality acquisition module is used for acquiring the first signal quality of the service cell and the second signal quality of the inter-system neighbor cell;
and the serving cell switching module is used for determining that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, reporting a measurement report containing the first signal quality and the second signal quality to the base station based on a preset third trigger threshold corresponding to the serving cell, a preset fourth trigger threshold corresponding to the inter-system neighbor cell and a preset fifth trigger threshold corresponding to the inter-system neighbor cell, wherein the measurement report is used for indicating the base station to switch the current resident cell from the serving cell to the inter-system neighbor cell, the third trigger threshold is smaller than the first trigger threshold, and the fourth trigger threshold is smaller than the second trigger threshold and larger than the fifth trigger threshold.
In a third aspect, embodiments of the present application provide a computer storage medium storing a plurality of instructions adapted to be loaded by a processor and to perform the above-described method steps.
In a fourth aspect, embodiments of the present application provide an electronic device, which may include: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the above-mentioned method steps.
The technical scheme provided by some embodiments of the present application has the beneficial effects that at least includes:
in one or more embodiments of the present application, a terminal receives a cell measurement configuration issued by a base station corresponding to a serving cell in a voice call state, where the cell measurement configuration includes a first trigger threshold corresponding to the serving cell and a second trigger threshold of a different system neighboring cell, obtains a first signal quality of the serving cell and a second signal quality of the different system neighboring cell, determines that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, and determines that when the signal quality of the serving cell meets a corresponding decision threshold (i.e., the first trigger threshold) and the signal quality of the different system neighboring cell does not meet a corresponding decision threshold (i.e., the second trigger threshold), based on a preset third trigger threshold corresponding to the serving cell, a preset fourth trigger threshold corresponding to the different system neighboring cell, or a preset fifth trigger threshold corresponding to the different system neighboring cell. By performing secondary network cell switching judgment on the communication quality of the serving cell and the heterogeneous system neighbor cell, the method can report a measurement report containing the first signal quality and the second signal quality to a base station under the condition that the network environment of the current serving cell is not suitable for communication any more and the network signal quality corresponding to the heterogeneous system neighbor cell can ensure communication with the serving cell, and timely switch the serving cell of the current resident network to the heterogeneous system neighbor cell, thereby realizing timely switching of the serving cell in the communication process, preventing the network environment of the serving cell where a terminal is located from further deteriorating or even dropping, ensuring the continuity of voice communication service and improving the communication experience in the voice communication process.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a scenario architecture of a network cell handover system according to an embodiment of the present application;
fig. 2 is a flow chart of a network cell handover method according to an embodiment of the present application;
fig. 3 is a schematic diagram of a size relationship of trigger thresholds of a serving cell according to a network cell handover method provided in an embodiment of the present application;
fig. 4 is a schematic diagram of a magnitude relation of trigger thresholds of neighboring cells of different systems according to a network cell handover method provided in an embodiment of the present application;
fig. 5 is a flowchart of another network cell handover method according to an embodiment of the present application;
fig. 6 is a schematic diagram of a cell handover scenario according to a network cell handover method provided in an embodiment of the present application;
Fig. 7 is a schematic structural diagram of a network cell switching device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a serving cell handover module according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of a first switching unit according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of a target heterogeneous system cell determining module according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of another network cell switching device according to an embodiment of the present application;
fig. 12 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
FIG. 13 is a schematic diagram of an operating system and user space provided by an embodiment of the present application;
FIG. 14 is an architecture diagram of the android operating system of FIG. 12;
FIG. 15 is an architecture diagram of the IOS operating system of FIG. 12.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present application, it is to be understood that the terms "comprise" and "have," and any variations thereof, are intended to cover non-exclusive inclusions, unless otherwise specifically defined and defined. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context. Furthermore, in the description of the present application, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
In the related art, when a terminal initiating a voice call moves to a region with weaker coverage of a service cell signal, the terminal can measure the communication quality of the current service cell based on measurement configuration of an A2 measurement event issued by a corresponding base station of the service cell during network residence, and report to the base station when the signal quality of the service cell is lower than a certain threshold (a threshold corresponding to the A2 measurement event). And then the base station transmits cell measurement configuration aiming at the service cell and the heterogeneous neighbor cell in the B2 measurement event to the terminal, wherein the cell measurement configuration comprises a service cell judgment threshold parameter and a heterogeneous neighbor cell judgment threshold parameter, and when the measured signal quality of the service cell and the signal quality of the heterogeneous neighbor cell meet the judgment threshold parameter, the terminal triggers the base station to switch the service cell of the current resident network to the heterogeneous neighbor cell, so that the voice service of the user is ensured not to be interrupted.
In the process of cell measurement of a serving cell and a heterogeneous neighbor cell, when decision threshold parameters (such as a first trigger threshold corresponding to the serving cell and a second trigger threshold corresponding to the heterogeneous neighbor cell) issued by a base station side of the serving cell are usually determined by a communication operator when the base station is deployed, there may be a situation that the decision threshold parameters are unreasonably set, when the signal quality of the serving cell meets the corresponding decision threshold parameters, and the signal quality of the heterogeneous neighbor cell does not meet the corresponding decision threshold parameters, at this time, the network environment of the current serving cell is not suitable for a call (such as the network signal quality corresponding to the current serving cell is further deteriorated), and the network signal quality corresponding to the heterogeneous neighbor cell is relatively better than that of the serving cell (i.e., the heterogeneous neighbor cell may meet the service transmission requirement of a terminal, such as voice call data), the situation of off-network call, call delay and the like may occur due to the fact that the current resident network cell is not timely switched from the serving cell to the heterogeneous neighbor cell.
The present application is described in detail with reference to specific examples.
The network cell switching method according to the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) systems, general packet radio service (General Packet Radio Service, GPRS), long term evolution (Long TermEvolution, LTE) systems, LTE frequency division duplex (Frequency Division Duplex, FDD) systems, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wiMAX) communication systems, or 5G systems, and the like.
Fig. 1 is a schematic architecture diagram of a network cell handover system according to an embodiment of the present application. As shown in fig. 3, the network cell switching system includes a network device 110 and a terminal 120.
Network device 110 may be a device that communicates with terminal 120 (alternatively referred to as a communication terminal, user terminal). The network device 110 may provide communication coverage for a particular geographic area, which may also be referred to as a cell, including but not limited to a serving cell, a foreign system cell, an intersystem cell, etc., and the network device 110 may communicate, such as voice calls, with terminals 120 located within the coverage area. Alternatively, the network device 110 may be a base station (BaseTransceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.
The network cell switching system further comprises at least one terminal 120 located within the coverage area of the network device 110. "terminal" as used herein includes, but is not limited to, connection via wireline, such as via public-switched telephone network (Public Switched Telephone Networks, PSTN), digital subscriber line (Digital SubscriberLine, DSL), digital cable, direct cable connection; and/or another data connection/network; and/or via a wireless interface, e.g., for a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and/or means of the other terminal arranged to receive/transmit communication signals; and/or internet of things (Internet of Things, ioT) devices. Terminals arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a 5G network or a terminal in a future evolved PLMN, etc.
The network cell switching method provided by the application can be realized based on the architecture of the network cell switching system shown in fig. 1.
In one embodiment, as shown in fig. 2, a network cell switching method is proposed, which may be implemented in dependence on a computer program, and may be run on a network cell switching device based on von neumann system. The computer program may be integrated in the application or may run as a stand-alone tool class application.
Specifically, the network cell switching method comprises the following steps:
step S101: and in a voice call state, receiving cell measurement configuration issued by a base station corresponding to a serving cell, wherein the cell measurement configuration comprises a first trigger threshold corresponding to the serving cell and a second trigger threshold of a different system neighbor cell.
The service cell refers to a current network residence cell which provides service data transmission service for the terminal, and the service cell is also referred to as an area where the terminal can obtain network service (such as LTE network service) currently, and is a cell divided from the whole communication service area (such as LTE communication service area), in which a base station for communication is arranged, and is responsible for establishing wireless connection with the terminal in the cell, and the terminal supporting a communication system (such as LTE communication system) corresponding to the communication service can communicate in any cell in the communication service area, such as using the service cell to carry service data of voice call.
The base station is a base station under a communication system (the communication system provides network service) corresponding to a serving cell, and the base station includes, but is not limited to, a base station (BaseTransceiver Station, BTS) in a global system for mobile communications (GlobalSystem of Mobile communication, GSM) system, a Code Division MultipleAccess, CDMA (Code Division multiple access) system, a base station (NodeB, NB) in a wideband Code Division multiple access (Wideband Code Division Multiple Access, WCDMA) system, an evolved base station (Evolutional Node B, eNB or eNodeB) in a Long term evolution (Long TermEvolution, LTE) system, or a wireless controller in a cloud wireless access network (CloudRadio Access Network, CRAN). Etc.
In an actual application environment, under the condition that the whole coverage of a cell is better, the terminal can be generally in the condition that a plurality of cells (such as 2-3 cells) are covered simultaneously in the moving or static process, wherein each cell can be a cell under a homologous system (also called as the same system) with the current service cell of the terminal, and the homologous system can be understood that every two cells belong to the same communication system (such as an LTE communication system and the same GSM communication system); the cell may also be a cell under a heterogeneous system (also referred to as a heterogeneous system) with a current serving cell of the terminal, where the heterogeneous system may be understood as that two cells belong to different communication systems (e.g. one cell belongs to an LTE communication system and another cell belongs to a GSM communication system); the cell is a basic network element in a mobile wireless network, belongs to a logic unit under a physical entity base station, and has the main basic properties: cell name, cell system, geographical longitude of cell, geographical latitude of cell, cell direction angle, intra-system neighbor, inter-system neighbor (e.g., 2G-3G, 2G-4G, 3G-2G, 3G-4G, 4G-2G, 4G-3G.). The intra-system neighbor cell, namely the original neighbor cell, the inter-system neighbor cell, namely the neighbor cell outside the service cell system, the intra-system neighbor cell and the inter-system neighbor cell can be configured when the base station is opened, and the neighbor cell information including the inside or the outside of the system can be acquired once the terminal successfully hosts the network service cell (i.e. network access or network residence success). The neighbor cell information corresponding to the neighbor cell of the different system may be obtained when the network is successfully camped, or may be sent when the base station issues the cell measurement configuration, which is not limited herein.
The cell measurement configuration refers to that the base station notifies a measurement configuration message to a terminal (such as a user equipment UE) through a measurement configuration (measConfig) cell carried by the rrcconnectionreconfiguration message, i.e. issues measurement control.
In a specific implementation scenario, the terminal may be a device for providing a VoLTE voice service to a user, where VoLTE is a voice service based on an IMS (IP multimedia subsystem), and is an IP data transmission technology, where no 2G/3G network is required, and all services are carried on an LTE network, i.e. a 4G network, and in a voice call state where the terminal is in a voice call state based on the VoLTE voice service, because the terminal moves to an area with weaker signal quality of a serving cell corresponding to the LTE network, a measurement event of the terminal on a cell is triggered, for example, a measurement is performed on an intra-system neighbor cell or a inter-system neighbor cell under a homologous system, and then a measurement report corresponding to the measurement event is generated, and based on the measurement report, handover of a serving cell of a current network can be implemented, for example, handover of a serving cell of the current network (e.g. an LTE cell) to a inter-system neighbor cell (e.g. a GSM cell), where the terminal generally uses single standby wireless voice call continuity (Single Radio Voice Call Continuity, vcc) to smoothly switch the IP-based VoLTE voice service of a carrier network to a target CS domain, thereby maintaining continuity of services. In practical application, the SRVCC handover is assisted by the network side, and the terminal can perform inter-system neighbor cell measurement by issuing a B1 or B2 measurement event to the terminal, so that when the intra-system neighbor cell of the homologous system is difficult to meet the call demand, the terminal performs inter-system cell measurement in time to complete the SRVCC handover, which results in the terminal finally dropping off the network under the condition that the signal strength of the LTE network is weaker and weaker.
The following will correspondingly explain the process of performing inter-system cell measurement in time when a terminal is difficult to meet call requirements in a system neighboring cell of a homologous system, where in this embodiment, in the process of receiving a cell measurement configuration issued by a base station corresponding to a serving cell in a voice call state, the cell measurement configuration includes a first trigger threshold corresponding to the serving cell and a second trigger threshold of the inter-system neighboring cell, and the specific process of the cell measurement configuration issued by the base station corresponding to the serving cell for inter-system cell measurement, which is received by the terminal, is as follows:
after the terminal successfully registers in the serving cell, i.e. the terminal successfully resides in the serving cell, e.g. in the serving cell corresponding to the network LTE network, and registers with the IMS server, the base station corresponding to the serving cell may issue a default measurement configuration list to the terminal, where the list includes one or more measurement events, which measurements are specified under which conditions the terminal performs, and generate a measurement report and report to the terminal. For example,
1. in the voice call state, the terminal is in the LTE network bad environment corresponding to the serving cell due to the movement of the terminal, in the process, the terminal can measure the A2 measurement event, namely the communication quality of the current serving cell is measured, for example, the signal quality of the current serving cell is periodically measured, and when the signal quality of the serving cell is lower than a certain threshold (the threshold corresponding to the A2 measurement event) due to the movement of the terminal, the condition that the A2 measurement event is reported is met, an A2 measurement report is generated and reported to the base station;
2. The base station can issue cell measurement under the homologous system based on an A2 measurement report, and generally issue measurement for different frequencies or neighboring cells of the different systems, for example, the base station issues measurement configuration for an A4 measurement event to the terminal, the terminal measures different frequency cells under the homologous system (such as cells belonging to different communication frequency bands of an LTE network) at the moment, when the A4 measurement event does not meet measurement reporting conditions, a cell (such as an LTE cell) of the homologous system, which is not covered by stronger signals, around a service cell corresponding to the terminal can be detected at the moment, and can also be understood that when the intra-system neighboring cells of the homologous system are difficult to meet call requirements, the base station issues cell measurement configuration for a B2 measurement event, and the cell measurement configuration comprises a first trigger threshold corresponding to the service cell and a second trigger threshold of the neighboring cells of the different systems; for another example, the base station may not issue the A4 measurement event for the inter-frequency cell to the terminal, i.e. directly issue the cell measurement configuration for the B2 measurement event, where the cell measurement configuration is used to instruct the terminal to start the measurement for the inter-system neighbor cell.
In LTE networks, measurement events mainly are the following: a1 measurement Event (Event A1), A2 measurement Event (Event A2), A3 measurement Event (Event A3), A4 measurement Event (Event A4) A5 measurement Event (Event A5), and B1 measurement Event (Event B1), B2 measurement Event (Event B2);
Wherein A2 measures Event (Event A2): indicating that the signal quality of the serving cell is lower than a certain threshold (a threshold corresponding to an A2 measurement event), when the A2 measurement event meeting the condition is reported, the base station can issue cell measurement configuration aiming at the B2 measurement event to the terminal for indicating the terminal to start inter-frequency/inter-system measurement;
wherein A4 measures Event (Event A4): when the event that the quality of the inter-frequency neighbor cell is higher than a certain threshold amount and the condition is met is reported, the base station starts an inter-frequency switching request to switch the current resident network cell of the terminal from the service cell to the inter-frequency neighbor cell, otherwise, reporting is not triggered when the condition is not met;
wherein B2 measures Event (Event B2): when the quality of the serving cell is lower than a certain threshold (such as a first trigger threshold) and the quality of the neighboring cell of the different system is higher than a certain threshold (such as a second trigger threshold), the base station can receive a measurement report corresponding to the B2 measurement event, namely the B2 measurement report, when the B2 measurement event meeting the condition is reported.
The trigger threshold may be understood as a threshold value for measuring the signal quality of a cell. The first trigger threshold and the second trigger threshold are thresholds issued by a communication network side (such as a base station side corresponding to a serving cell) in a B2 measurement event, the first trigger threshold is a threshold of signal quality of the serving cell, and when the signal quality corresponding to the serving cell meets the first trigger threshold, if the reference signal received power measured by the serving cell is smaller than the first trigger threshold, the communication quality of the serving cell is usually poor, and the risk of dropped calls exists when the terminal continues to reside in the serving cell.
The second trigger threshold is a threshold of signal quality of the neighboring cell of the different system, and when the signal quality corresponding to the neighboring cell of the different system meets the second trigger threshold, for example, when the received signal strength value measured by the neighboring cell of the different system is greater than the second trigger threshold, the communication quality of the neighboring cell of the different system is generally good at this time, so that the requirement of the voice call service of the terminal on the communication network quality can be met, and the terminal can switch the currently resident service cell to the neighboring cell of the different system.
Further, when the signal quality corresponding to the serving cell generally meets a first trigger threshold and the signal quality corresponding to the neighboring cell of the different system meets a second trigger threshold, the communication quality of the serving cell is generally poor, and the communication quality of the neighboring cell of the different system is good, at this time, the reporting condition of the B2 measurement event is met, a corresponding measurement report is generated, and the measurement report is triggered to be reported to the base station corresponding to the serving cell.
Step S102: and acquiring the first signal quality of the serving cell and the second signal quality of the inter-system neighbor cell.
Specifically, the terminal receives a cell measurement configuration issued by a different system neighbor cell measurement (namely, a B2 measurement event) issued by a base station corresponding to a serving cell, where the serving cell corresponds to a first trigger threshold and a different system neighbor cell second trigger threshold, and at this time, the terminal can determine the different system neighbor cell to be measured according to the received signal strength of each cell, and then acquire the first signal quality of the serving cell and the second signal quality of the different system neighbor cell. The first signal quality and the second signal quality are used for the terminal to measure whether to report the B2 measurement event. Further, the first signal quality of the measured serving cell of the terminal meets a first trigger threshold, and the second signal quality of the measured heterogeneous neighbor cell meets a second trigger threshold, and in the related art, the terminal generates a B2 measurement report for a B2 measurement event, where the B2 measurement report is used to instruct the base station to switch the current camping cell from the serving cell to the heterogeneous neighbor cell.
In practical application, the cell measurement configuration sent by the base station and received by the terminal may include a neighbor list, a report configuration, a measurement identifier, a measurement interval, a number identifier, a decision threshold parameter, and the like. And determining the neighbor cells of the different systems to be measured based on the issued cell measurement configuration terminal. In specific measurement, the terminal may perform cell measurement on the current serving cell and the neighboring cell of the different system to be measured based on a measurement period (for example, measurement once in 150 ms) indicated by a measurement interval issued by the base station, so as to obtain a first signal quality of the serving cell and a second signal quality of the neighboring cell of the different system.
The first signal quality may be understood as a communication parameter for measuring the condition of the serving cell communication network.
The second signal quality may be understood as a communication parameter for measuring the condition of the communication network of the neighboring cells of the different system.
The communication parameters corresponding to the first signal quality and the second signal quality are usually determined before measurement, for example, the communication parameters can be determined according to a cell measurement configuration issued by a base station, and in practical application, the communication parameters are determined according to a parameter type of a decision threshold parameter in the cell measurement configuration, wherein the decision threshold parameter is a first trigger threshold and a second trigger threshold.
In an actual application environment, the first trigger threshold corresponding to the serving cell may be a threshold corresponding to the reference signal received power (reference signal receiving power, RSRP), i.e. b2_threshold1_rsrp; the second trigger threshold corresponding to the inter-system neighbor cell may be a threshold corresponding to a Received signal strength value (Received SignalStrengthIndication, RSSI), that is, b2_threshold2_geran, based on b2_threshold1_rsrp and b2_threshold2_geran, where the terminal needs to measure the first signal quality of the current serving cell, that is, the reference signal Received power, and measure the second signal quality of the inter-system neighbor cell to be measured, that is, the signal strength value, in a measurement period (for example, one measurement for 150 ms), and after the measurement is completed, the terminal may obtain the first signal quality of the serving cell and the second signal quality of the inter-system neighbor cell.
In a specific implementation scenario, if during the voice over LTE communication of the terminal, the terminal detects in real time that the signal strength RSRP of the serving cell corresponding to the LTE network is smaller than the current preset threshold, it indicates that the terminal may be far away from the coverage area of the serving cell corresponding to the LTE network or be in the edge area of the serving cell corresponding to the LTE network, and the terminal triggers the condition that the A2 measurement event is reported to generate an A2 measurement report and report the report to the base station. And then the terminal receives the cell measurement configuration issued by the serving cell base station in the VoLTE voice call state, and starts cell measurement on the current serving cell and the heterogeneous system neighbor cell based on the cell measurement configuration terminal so as to acquire the first signal quality of the serving cell and the second signal quality of the heterogeneous system neighbor cell, and the detailed explanation is carried out by taking the first signal quality as RSRP and the second signal quality as RSSI as an example for the convenience of explanation. The following are provided:
The terminal performs parameter matching based on the first signal quality RSRP and the second signal quality RSSI and the first trigger threshold b2_threshold1_RSRP and the second trigger threshold b2_threshold2_GERAN, and judges whether the reporting condition of the B2 measurement event is met or not, namely, the terminal detects whether the first signal quality RSRP of the serving cell is lower than the first trigger threshold b2_threshold1_RSRP and whether the second signal quality of the neighboring cell of the different system is higher than the second trigger threshold b2_threshold2_GERAN.
1. When the first signal quality RSRP of the serving cell is smaller than the first trigger threshold b2_threshold1_rsrp and the second signal quality RSSI of the heterogeneous neighbor cell is larger than the second trigger threshold b2_threshold2_geran, the terminal satisfies the reporting condition of the B2 measurement event, and the terminal may generate a measurement report including the first signal quality RSRP and the second signal quality RSSI and upload the measurement report to the base station corresponding to the serving cell, where the B2 measurement report is used to instruct the base station to switch the current camping cell from the serving cell to the heterogeneous neighbor cell.
2. When the first signal quality RSRP of the serving cell is smaller than the first trigger threshold b2_threshold1_rsrp and the second signal quality RSSI of the neighboring cell of the different system is smaller than the second trigger threshold b2_threshold2_geran, in the related art, the reporting condition of the B2 measurement event is not satisfied, and the B2 measurement event is not reported.
Wherein, the measurement of the terminal to the heterogeneous system neighbor cell includes but is not limited to: and measuring carrier frequencies, pilot signal intensities, pilot signal quality and the like of the neighboring cells of the different systems.
Step S103: and determining that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, and acquiring a preset third trigger threshold corresponding to the serving cell, a preset fourth trigger threshold corresponding to the inter-system neighbor cell or a preset fifth trigger threshold corresponding to the inter-system neighbor cell.
The decision threshold parameters (e.g., the first trigger threshold and the second trigger threshold) issued by the base station side of the serving cell are generally determined by the communication operator when the base station is deployed, and in practical application, there may be unreasonable decision threshold parameter settings, where, if the network signal quality corresponding to the current serving cell of the terminal is poor and the network signal quality corresponding to the neighboring cell of the different system is relatively good (i.e., the neighboring cell of the different system can meet the service transmission requirement of the terminal, such as voice call data), the current resident network cell is not timely switched from the serving cell to the neighboring cell of the different system, thereby causing the situations of off-network call drop, call delay and the like. In this embodiment of the present application, by executing the network cell handover method, the terminal determines that the first signal quality is less than the first trigger threshold and the second signal quality is less than the second trigger threshold, that is, "the first signal quality RSRP of the serving cell is less than the first trigger threshold b2_threshold1_rsrp and the second signal quality RSSI of the neighboring cell of the different system is less than the second trigger threshold b2_threshold b2_geran" in step S102.
At this time, the terminal may continue to perform secondary cell quality decision based on the preset third trigger threshold corresponding to the serving cell and the preset fourth trigger threshold corresponding to the inter-system neighbor cell, or the preset third trigger threshold corresponding to the serving cell and the preset fifth trigger threshold corresponding to the inter-system neighbor cell. When the terminal obtains a preset trigger threshold corresponding to the heterogeneous system neighbor cell, the terminal can take one of a fourth trigger threshold and a fifth trigger threshold to perform secondary cell quality judgment, and the specific judgment can be defined by the related definition of the following steps.
After the secondary cell quality decision is passed, the terminal may generate a measurement report containing the first signal quality and the second signal quality, and then report the measurement report to the base station corresponding to the serving cell. The B2 measurement report is used to instruct the base station to switch the current camping cell from the serving cell to the inter-system neighbor cell.
The trigger threshold may be understood as a threshold value for measuring the signal quality of a cell. The third trigger threshold, the fourth trigger threshold and the fifth trigger threshold are threshold values pre-stored by the terminal (such as user equipment UE) in the event of B2 measurement, where the third trigger threshold is a threshold value set by the terminal side for signal quality of the serving cell, and when the signal quality corresponding to the serving cell is smaller than the third trigger threshold, for example, the received power of the reference signal measured by the serving cell is smaller than the third trigger threshold, the communication quality corresponding to the serving cell is usually very poor, and there is a great risk of dropped call when the terminal continues to reside on the serving cell. The third trigger threshold is smaller than the first trigger threshold issued by the communication network side (such as a base station corresponding to a serving cell).
In this embodiment of the present application, the magnitude relation of each trigger threshold related to measuring the communication quality of the serving cell may be referred to fig. 3, and in fig. 3, the magnitude relation of each trigger threshold is respectively: the first trigger threshold > the sixth trigger threshold > the third trigger threshold.
The fourth trigger threshold and the fifth trigger threshold are threshold values set by the terminal side for the signal quality of the neighboring cells of the different system, and are used for measuring whether the signal quality of the neighboring cells of the different system meets the requirement of cell switching under the condition that the signal quality corresponding to the serving cell is poor. The fourth trigger threshold is less than the second trigger threshold and greater than the fifth trigger threshold.
In this embodiment of the present application, the magnitude relation of each trigger threshold related to measuring the communication quality of the neighboring cells of the different system may be referred to fig. 4, and in fig. 4, the magnitude relation of each trigger threshold is respectively: the second trigger threshold > the fourth trigger threshold > the fifth trigger threshold.
The terminal side sets a third trigger threshold, a fourth trigger threshold or a fifth trigger threshold, so that the communication conditions of the current service cell and the neighboring cells of the different systems are refined conveniently under the condition that the judgment threshold value in the B2 measurement event issued by the network side is not met, and secondary cell quality judgment is carried out.
Under the condition that the quality judgment of the secondary cell passes, the communication quality of the heterogeneous system neighbor cell can meet the requirement of the terminal voice call service on the communication network quality compared with the service cell, and the terminal can switch the currently resident service cell to the heterogeneous system neighbor cell.
Step S104: reporting a measurement report containing the first signal quality and the second signal quality to the base station based on the third trigger threshold and the fourth trigger threshold, or based on the third trigger threshold and the fifth trigger threshold, the measurement report being used to instruct the base station to handover a current camping cell from the serving cell to the inter-system neighbor cell, the third trigger threshold being smaller than the first trigger threshold, the fourth trigger threshold being smaller than the second trigger threshold and larger than the fifth trigger threshold.
The secondary cell quality judgment process based on the third trigger threshold corresponding to the preset serving cell and the fourth trigger threshold corresponding to the preset inter-system neighbor cell or based on the third trigger threshold and the fifth trigger threshold is as follows:
1. under the condition that the terminal determines that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, the terminal generally does not meet the reporting condition of the B2 measurement event issued by the base station side at this time, and the terminal can perform secondary cell quality judgment based on the third trigger threshold and the fourth trigger threshold, specifically:
The terminal judges whether the first signal quality corresponding to the serving cell is larger than the third trigger threshold, and judges whether the second signal quality corresponding to the neighboring cell of the different system is larger than the fourth trigger threshold, wherein the third trigger threshold can be-118 dbm, and the fourth trigger threshold can be-90 dbm;
when the first signal quality is greater than the third trigger threshold (e.g., -118 dbm) and the second signal quality is greater than the fourth trigger threshold (e.g., -90 dbm), the communication quality of the serving cell is poor, and the network signal quality corresponding to the inter-system neighbor cell is relatively good to the serving cell. At this time, the terminal may set a second trigger threshold sent by a communication network side (e.g., a base station corresponding to a serving cell) by executing the network cell handover method in the embodiment of the present application, specifically, set the second trigger threshold to be the fourth trigger threshold (e.g., -90 dbm), where the first signal quality of the serving cell and the second signal quality of a neighboring cell of a different system may satisfy a reporting condition when a B2 measurement event is reported, and then the base station may generate a measurement report corresponding to the B2 measurement event including the first signal quality and the second signal quality, that is, a B2 measurement report, and report the measurement report to the base station, where the measurement report is used to instruct the base station to handover a current serving cell from the serving cell to the neighboring cell of the different system.
2. Under the condition that the terminal determines that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, the terminal generally does not meet the reporting condition of the B2 measurement event issued by the base station side at this time, and the terminal can perform secondary cell quality judgment based on a third trigger threshold and the fifth trigger threshold, specifically:
the terminal judges whether the first signal quality corresponding to the serving cell is smaller than the third trigger threshold, and judges whether the second signal quality corresponding to the inter-system neighbor cell is larger than the fifth trigger threshold, wherein the third trigger threshold can be-118 dbm, and the fifth trigger threshold can be-95 dbm;
when the first signal quality is smaller than the third trigger threshold (e.g., -118 dbm) and the second signal quality is larger than the fifth trigger threshold (e.g., -95 dbm), the communication quality corresponding to the serving cell is generally very poor, the terminal continues to reside in the serving cell and has a great risk of dropped call, and the network signal quality corresponding to the neighboring cell of the different system is better than that of the serving cell. At this time, the terminal may set a second trigger threshold sent by a communication network side (e.g., a base station corresponding to a serving cell) by executing the network cell handover method in the embodiment of the present application, specifically, set the second trigger threshold to be the fifth trigger threshold (e.g., -95 dbm), where the first signal quality of the serving cell and the second signal quality of a neighboring cell of a different system may satisfy a reporting condition when a B2 measurement event is reported, and then the base station may generate a measurement report corresponding to the B2 measurement event including the first signal quality and the second signal quality, that is, a B2 measurement report, and report the measurement report to the base station, where the measurement report is used to instruct the base station to handover a current serving cell from the serving cell to the neighboring cell of the different system.
At least one of a third trigger threshold corresponding to the preset serving cell, a fourth trigger threshold corresponding to the preset heterogeneous system neighbor cell and a fifth trigger threshold corresponding to the preset heterogeneous system neighbor cell is usually obtained by acquiring a large amount of communication sample data in an actual communication environment in advance and analyzing the communication sample data by adopting a statistical method.
In this embodiment of the present application, in a voice call state, a terminal receives a cell measurement configuration sent by a base station corresponding to a serving cell, where the cell measurement configuration includes a first trigger threshold corresponding to the serving cell and a second trigger threshold of a different system neighboring cell, obtains a first signal quality of the serving cell and a second signal quality of the different system neighboring cell, determines that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, and when the signal quality of the serving cell meets a corresponding decision threshold (i.e., the first trigger threshold) and the signal quality of the different system neighboring cell does not meet a corresponding decision threshold (i.e., the second trigger threshold), determines that the signal quality of the different system neighboring cell meets a corresponding decision threshold (i.e., the second trigger threshold) based on a preset third trigger threshold corresponding to the serving cell, a preset fourth trigger threshold corresponding to the different system neighboring cell, or the third trigger threshold and a preset fifth trigger threshold corresponding to the different system neighboring cell. By performing secondary network cell switching judgment on the communication quality of the serving cell and the heterogeneous system neighbor cell, the method can report a measurement report containing the first signal quality and the second signal quality to a base station under the condition that the network environment of the current serving cell is not suitable for communication any more and the network signal quality corresponding to the heterogeneous system neighbor cell can ensure communication with the serving cell, and timely switch the serving cell of the current resident network to the heterogeneous system neighbor cell, thereby realizing timely switching of the serving cell in the communication process, preventing the network environment of the serving cell where a terminal is located from further deteriorating or even dropping, ensuring the continuity of voice communication service and improving the communication experience in the voice communication process.
Referring to fig. 5, fig. 5 is a flowchart of another embodiment of a network cell handover method according to the present application. Specific:
step S201: and in a voice call state, receiving cell measurement configuration issued by a base station corresponding to a serving cell, wherein the cell measurement configuration comprises a first trigger threshold corresponding to the serving cell and a second trigger threshold of a different system neighbor cell.
See step S101, and will not be described here.
Step S202: and acquiring the first signal quality of the serving cell and the second signal quality of the inter-system neighbor cell, and determining that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold.
See steps S102 to S103, and are not described here.
Step S203: acquiring current state information of a terminal, and acquiring at least one original trigger threshold of a preset original third trigger threshold corresponding to the serving cell, a preset original sixth trigger threshold corresponding to the serving cell, a preset original fourth trigger threshold corresponding to the inter-system neighbor cell and a preset original fifth trigger threshold corresponding to the inter-system neighbor cell.
In this embodiment of the present application, the terminal may obtain the current state information to perform threshold optimization on at least one original trigger threshold, that is, perform optimization processing on the original trigger threshold, so as to obtain at least one relatively accurate trigger threshold.
The state information may be speed information, it can be understood that when the relative movement of the terminal is faster, frequent cell switching (switching of cells of the same communication system or different systems) is involved, for example, a user holds the terminal to take vehicles such as high-speed rail, motor cars, automobiles, etc., and the speed information of the terminal affects the accuracy degree of the original trigger threshold; the state information may be magnetic field parameters, that is, parameters representing the magnetic field characteristics of the terminal, such as magnetic field strength, magnetic induction strength, exciting current, induced magnetic flux, etc., when there is magnetic field interference to the voice call process of the terminal caused by the external magnetic field, for example, strong magnetic devices (such as magnetic objects like magnet stones) exist around the terminal, and at this time, the terminal affects the accuracy degree of the original trigger threshold; the state information can be a geographic position, and when the terminal is positioned in a basement, a ground parking lot and a building dense place, the accuracy degree of an original trigger threshold value can be influenced; etc.
The state information may be a fit of one or more of the above, not specifically defined herein.
Step S204: and optimizing the original trigger threshold based on the state information to obtain a trigger threshold corresponding to the original trigger threshold after optimizing.
An optimization method may be: setting corresponding weighting factors (the weighting factors can be negative numbers) for the state parameters corresponding to one or more types of state information, carrying out weighted summation operation on each state parameter and the weighting factors corresponding to the state parameters to obtain weighted summation optimized values (the optimized values can be negative numbers), and then adding the original trigger threshold values and the optimized values to obtain the trigger threshold values corresponding to the original trigger threshold values after optimization. Such as: and optimizing the original trigger threshold based on the magnetic field parameter and the speed parameter to obtain an optimized value after weighted summation, and adding the original trigger threshold and the optimized value, namely, optimizing the processed trigger threshold.
An optimization processing mode may be that corresponding adding and setting reference values are set for state parameters corresponding to one or more types of state information, a reference coefficient is determined based on the state parameters, for example, a ratio of the state parameters to the reference values corresponding to the state parameters is used as the reference coefficient, a plurality of coefficients are set, each coefficient corresponds to a numerical range, a falling numerical range is determined according to the state parameters, and then the corresponding coefficient, namely the reference coefficient, is determined, and the product of the reference coefficient and the reference value is used as an optimization value; and then the original trigger threshold value and the optimized value (when the optimized value is a plurality of optimized values, namely the optimized value is added with the optimized values), and the trigger threshold value corresponding to the original trigger threshold value after the optimization processing can be obtained. Such as: and optimizing the original trigger threshold based on the magnetic field parameter and the speed parameter, taking the ratio of the magnetic field parameter to the reference value corresponding to the magnetic field parameter as a magnetic field reference coefficient, calculating a magnetic field optimized value corresponding to the magnetic field reference coefficient and the reference value, taking the ratio of the speed parameter to the reference value corresponding to the speed parameter as a speed reference coefficient, calculating a speed optimized value corresponding to the speed reference coefficient and the reference value, and adding the speed optimized value, the magnetic field optimized value and the original trigger threshold to obtain the trigger threshold corresponding to the original trigger threshold after the optimization.
In a specific implementation scenario, the terminal inputs state information (such as a speed parameter, a magnetic field parameter, a geographical position parameter and the like) into a pre-trained threshold optimization model, outputs an optimization value, and optimizes the original trigger threshold based on the optimization value. Such as: optimizing the original trigger threshold based on the magnetic field parameter and the mechanical abrasion parameter to obtain an optimized value output by a threshold optimization model, and adding the original trigger threshold and the optimized value, namely, the trigger threshold after optimization processing; another example is: and optimizing the original trigger threshold based on the magnetic field parameter and the speed parameter to obtain an optimized value output by a threshold optimization model, and adding the original trigger threshold and the optimized value, namely, the trigger threshold after optimization processing.
The method comprises the steps of obtaining a large amount of sample data in advance, extracting characteristic information, and labeling the sample data, wherein the characteristic information comprises at least one parameter of state parameters corresponding to state information such as magnetic field parameters, speed parameters, geographical position parameters and the like, and an initial threshold optimization model is created. The threshold optimization model may be implemented by training an initial threshold optimization model using a large amount of sample data, for example, the threshold optimization model may be implemented based on one or more of LR (Logistic Regression, logistic regression model), SVM (Support Vector Machine ), decision tree, naive bayes classifier, CNN (Convolutional Neural Network ), RNN (Recurrent Neural Networks, recurrent neural network), etc., and training the initial threshold optimization model based on sample data with labeled optimization values, so as to obtain a trained threshold optimization model.
Furthermore, in this embodiment, an initial threshold optimization model is created by using a DNN-HMM model with an error back propagation algorithm, after feature information is extracted, the feature information is input into the neural network model in the form of a feature vector, a training process of the neural network model generally comprises forward propagation and backward propagation, in the forward propagation process, feature information corresponding to terminal input sample data is transferred to an output layer after being operated by a transfer function (also called an activation function or a transfer function) of hidden layer neurons (also called nodes) from an input layer of the neural network model, wherein the state of each layer of neurons affects the state of the next layer of neurons, an actual output value-first voice identifier is calculated at the output layer, an expected error between the actual output value and an expected output value is calculated, parameters of the neural network model are adjusted based on the expected error, the parameters comprise a weight value and a threshold value of each layer, and after training is completed, the threshold optimization model is generated.
Specifically, the expected error may be a mean square error MSE of calculating an actual output value and an expected output value, and the mean square error MSE may adopt the following formula:
Wherein m is the number of output nodes, p is the number of training samples, the expected output value and the actual output value.
Step S205: and continuing to camp on the service cell when the first signal quality is greater than the sixth trigger threshold and less than the first trigger threshold and the second signal quality is greater than the fourth signal quality.
In practical application, when the secondary cell quality judgment is performed on the serving cell and the neighboring cells of the different systems in the B2 measurement event, the terminal may further set a threshold value larger than the third trigger threshold value and smaller than the first trigger threshold value, that is, the sixth trigger threshold value, for the signal quality of the serving cell. The sixth trigger threshold is used for judging the situation that the signal quality of the serving cell is equivalent to that of the neighboring cell of the different system, or the signal quality of the serving cell is better than that of the neighboring cell of the different system, and the reporting of the B2 measurement event is not required to be triggered at the moment. The sixth trigger threshold is greater than the third trigger threshold and less than the first trigger threshold, such as the sixth trigger threshold may be-115 dbm.
Specifically, when the first signal quality of the serving cell is greater than the sixth trigger threshold (e.g., -115 dbm) and less than the first trigger threshold, and the second signal quality of the inter-system neighbor cell is greater than the fourth signal quality, at this time, the signal quality of the serving cell is generally equal to the signal quality of the communication network corresponding to the inter-system neighbor cell, or the signal quality of the serving cell is better than the signal quality of the communication network of the inter-system neighbor cell, the terminal performs voice call based on the serving cell and performs voice call based on the inter-system neighbor cell, the terminal does not need to trigger reporting of a B2 measurement event, and further does not need to trigger handover of the base station side to the serving cell of the current network residence of the terminal.
Further, under the condition that the first signal quality of the serving cell is smaller than a first trigger threshold and the second signal quality of the heterogeneous system neighbor cell is smaller than a second trigger threshold, when the terminal detects that the first signal quality of the serving cell is larger than the sixth trigger threshold (for example, -115 dbm) and smaller than the first trigger threshold, the terminal does not need to trigger reporting of the B2 measurement event.
Step S206: and when the first signal quality is larger than the third trigger threshold and smaller than a sixth trigger threshold corresponding to the preset serving cell, and the second signal quality is larger than the fourth trigger threshold, setting the second trigger threshold as the fourth trigger threshold to trigger reporting of a measurement report containing the first signal quality and the second signal quality to the base station.
Specifically, when the terminal determines that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, the terminal may perform secondary cell quality judgment based on a third trigger threshold, a sixth trigger threshold and the fourth trigger threshold, where the reporting condition of the B2 measurement event issued by the base station side is not generally satisfied at this time, specifically:
The terminal judges whether the first signal quality corresponding to the serving cell is larger than the third trigger threshold and smaller than a preset sixth trigger threshold corresponding to the serving cell, and judges whether the second signal quality corresponding to the heterogeneous system neighbor cell is larger than the fourth trigger threshold, wherein the third trigger threshold can be-118 dbm, the fourth trigger threshold can be-90 dbm, and the sixth trigger threshold can be-115 dbm;
when the first signal quality is greater than the third trigger threshold (e.g., -118 dbm) and is less than a sixth trigger threshold (e.g., -115 dbm) corresponding to the preset serving cell, and the second signal quality is greater than the fourth trigger threshold (e.g., -90 dbm), at this time, the communication quality of the serving cell is poor, and the network signal quality corresponding to the neighboring cell of the different system is relatively good to the serving cell, which can be understood that the neighboring cell of the different system can meet the service transmission requirement of the terminal, such as voice call data. At this time, the terminal may set a second trigger threshold sent by a communication network side (e.g., a base station corresponding to a serving cell) by executing the network cell handover method in the embodiment of the present application, specifically, set the second trigger threshold to be the fourth trigger threshold (e.g., -90 dbm), where the first signal quality of the serving cell and the second signal quality of a neighboring cell of a different system may satisfy a reporting condition when a B2 measurement event is reported, and then the base station may generate a measurement report corresponding to the B2 measurement event including the first signal quality and the second signal quality, that is, a B2 measurement report, and report the measurement report to the base station, where the measurement report is used to instruct the base station to handover a current serving cell from the serving cell to the neighboring cell of the different system.
In a specific embodiment, when the terminal generates the measurement report corresponding to the B2 measurement event, the terminal may further perform optimization processing on the measurement parameter in the measurement report. Specifically, the terminal can optimize the second signal quality based on the second trigger threshold to obtain a target second signal quality greater than the second trigger threshold; the target second signal quality is a parameter value which is larger than a second trigger threshold and is obtained based on second signal quality optimization processing. It can be understood that the terminal optimizes the second signal quality so that the target second signal quality after the optimization process can meet the handover requirement of the network side (such as the base station of the serving cell) on the inter-system neighbor cell quality in the B2 measurement event, and after obtaining the target second signal quality after the optimization process, the terminal can take the target second signal quality as the second signal quality and generate a measurement report including the first signal quality and the target second signal quality. And reporting a measurement report corresponding to the B2 measurement event to the base station, and after the base station receives the measurement report, performing single standby wireless voice call continuity SRVCC switching, namely switching the current resident network cell of the terminal from the service cell to the different system neighbor cell, so as to transmit voice call service data in the different system neighbor cell.
The following details about the specific handover procedure, as shown in fig. 6, fig. 6 is a schematic view of a cell handover scenario.
1. The switching preparation process comprises the following steps: the terminal reports the measurement report to the base station of the serving cell, and the base station of the serving cell can make a handover decision after receiving the measurement report, wherein the handover decision is generally that a network side (such as a network device such as the base station) decides whether a heterogeneous system neighbor cell needing to be handed over is loaded, and decides whether to access the heterogeneous system neighbor cell to the terminal according to the loading condition, wherein the handover decision process of the network side can refer to a handover decision flow in the related art, and is not repeated here.
2. The switching preparation process comprises the following steps: after the switching decision is passed, the base station of the service cell sends a switching request to the neighboring cell of the different system, and after the admission control of the neighboring cell of the different system, returns a switching admission reply.
3. The switching execution process comprises the following steps: the service cell sends a reconfiguration message carrying a switching command to the terminal, and after the terminal receives the reconfiguration message, the terminal carries out a random access process to the heterogeneous neighbor cell according to random access resources carried in the reconfiguration message; meanwhile, the service cell transmits cache data (such as cache data related to voice call service) to the heterogeneous system neighbor cell.
4. The switching completion process comprises the following steps: after the terminal is successfully accessed to the inter-system neighbor cell at random, the inter-system neighbor cell sends a path switch request to a Mobility Management Entity (MME), the MME sends a load modification signaling to a service Gateway, and after the path switch is completed, the MME replies the inter-system neighbor cell, and the inter-system neighbor cell releases the signaling to a service cell sending terminal context. Thus, the whole SRVCC switching process is completed, and the voice call is carried from the PS domain corresponding to the service cell to the CS domain corresponding to the heterogeneous system neighbor cell, thereby ensuring the continuity of the voice service.
Step S207: and when the first signal quality is smaller than the third trigger threshold and the second signal quality is larger than the fifth trigger threshold, setting the second trigger threshold to the fifth trigger threshold to trigger reporting of a measurement report containing the first signal quality and the target second signal quality to the base station.
Specifically, when determining that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, the terminal generally does not meet a reporting condition of a B2 measurement event issued by the base station side, and the terminal may perform secondary cell quality judgment based on a third trigger threshold and the fifth trigger threshold, specifically:
the terminal judges whether the first signal quality corresponding to the serving cell is smaller than the third trigger threshold, and judges whether the second signal quality corresponding to the inter-system neighbor cell is larger than the fifth trigger threshold, wherein the third trigger threshold can be-118 dbm, and the fifth trigger threshold can be-95 dbm;
when the first signal quality is smaller than the third trigger threshold (e.g., -118 dbm) and the second signal quality is larger than the fifth trigger threshold (e.g., -95 dbm), the communication quality corresponding to the serving cell is generally very poor, the terminal continues to reside in the serving cell and has a great risk of dropped call, and the network signal quality corresponding to the neighboring cell of the different system is better than that of the serving cell. At this time, the terminal may set a second trigger threshold sent by a communication network side (e.g., a base station corresponding to a serving cell) by executing the network cell handover method in the embodiment of the present application, specifically, set the second trigger threshold to be the fifth trigger threshold (e.g., -95 dbm), where the first signal quality of the serving cell and the second signal quality of a neighboring cell of a different system may satisfy a reporting condition when a B2 measurement event is reported, and then may generate a measurement report corresponding to the B2 measurement event including the first signal quality and the target second signal quality, that is, a B2 measurement report, and report the measurement report to the base station, where the measurement report is used to instruct the base station to handover a current serving cell from the serving cell to the neighboring cell of the different system.
Step S208: and determining that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the fifth trigger threshold, and acquiring at least one resident historical heterogeneous system cell.
The history inter-system cell may be understood as an inter-system cell that has been camped or accessed before camping or accessing the serving cell.
Specifically, when the terminal determines that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the fifth trigger threshold, the neighboring cell of the different system corresponding to the serving cell does not meet the cell switching condition, and the terminal can acquire at least one resident historical different system cell.
In practical application, the terminal may store a history resident cell list, where the history resident cell list includes cells belonging to the same communication system as the current serving cell and cells not belonging to the same communication system. The terminal may acquire at least one history foreign cell that resides in the history resident cell list, that is, acquire a history foreign cell that is not the same communication system as the current serving cell in the history resident cell list. If the current serving cell is an LTE communication system, the terminal may acquire a history resident cell under the GSM communication system.
In the embodiment of the present application, when the communication operator builds the serving cell, the inter-system neighbor cell determines that the serving cell corresponds to a neighbor cell list of the serving cell, where the neighbor cell list may include neighbor cells of the same communication system and inter-system neighbor cells, and when a cell handover event (such as a B2 measurement event) is involved, a base station of the serving cell may include information of the inter-system neighbor cells in the cell measurement configuration when issuing the cell measurement configuration to the terminal, and it may be understood that, according to some implementations, the number of the inter-system neighbor cells may be multiple, and when a measurement report is reported in the B2 measurement event, the measurement report may include measurement results of multiple inter-system neighbor cells; and the information of the historical heterogeneous system cell is obtained by the terminal in the stored historical resident cell list.
In a specific embodiment, in step S205, "when the first signal quality is greater than the sixth trigger threshold and less than the first trigger threshold and the second signal quality is greater than the fourth signal quality", one way may be that the terminal may continue camping on the serving cell as in step S205. One way may be that the terminal acquires at least one resident history inter-system cell, determines a target inter-system cell from each of the history inter-system cells, uses the target inter-system cell as the inter-system neighbor cell, and then executes the step S202. In this case, the terminal can reference the target heterogeneous system neighbor cell in the at least one historical heterogeneous system neighbor cell, and can switch the target heterogeneous system neighbor cell when the target heterogeneous system neighbor cell meets the network cell switching condition, so that the continuity of the voice call service is further ensured, and the call experience in the voice call process is improved.
Step S209: and determining a target inter-system cell from each historical inter-system cell, and taking the target inter-system cell as the inter-system neighbor cell.
In practical application, the same historical residence cells may exist in the measured inter-system neighbor cells of the terminal and the cells in the historical residence cell list, and before determining the target inter-system cell, the terminal filters the measured inter-system neighbor cells in the historical inter-system cells, that is, does not include the reference range of the target inter-system cell.
Specifically, the manner in which the terminal determines the target inter-system cell may be: the terminal obtains network performance parameters of each historical inter-system cell, determines cell priority of each historical inter-system cell according to the network performance parameters, determines a target inter-system cell indicated by the highest cell priority in each historical inter-system cell, takes the target inter-system cell as the inter-system neighbor cell, and then executes the step S202.
The terminal can determine the cell priority of the historic inter-system cells according to the high-low sequence of the network performance parameters, for example, the terminal can measure the signal power of each historic inter-system cell and determine the cell priority of the historic inter-system cells according to the high-low sequence of the signal power; such as the terminal may measure the signal strength value of each historic inter-system cell, determine the cell priority of the historic inter-system cell according to the order of the signal strength values, and so on.
The network performance parameters include, but are not limited to, at least one parameter of reference Signal received power (Reference Signal Receiving Power, RSRP), received Signal code power (received Signal code power, RSCP), received chip Signal strength to Noise strength Ratio (eclio)/Ratio of power PER modulated Bit to Noise spectrum density (EcNo)/Signal-to-Noise Ratio (SNR)/reference Signal received quality (Reference Signal Receivingquality, RSRQ), bit Error Rate (BER)/block Error Rate (BLER)/packet Error Rate (Packet Error Ratio, PER) of the received Signal, etc. to implement Signal quality evaluation of the current historic heterogeneous system cell, although it is also possible to implement Signal quality evaluation of the current historic heterogeneous system cell by measuring other parameters.
In this embodiment of the present application, in a voice call state, a terminal receives a cell measurement configuration sent by a base station corresponding to a serving cell, where the cell measurement configuration includes a first trigger threshold corresponding to the serving cell and a second trigger threshold of a different system neighboring cell, obtains a first signal quality of the serving cell and a second signal quality of the different system neighboring cell, determines that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, and when the signal quality of the serving cell meets a corresponding decision threshold (i.e., the first trigger threshold) and the signal quality of the different system neighboring cell does not meet a corresponding decision threshold (i.e., the second trigger threshold), determines that the signal quality of the different system neighboring cell meets a corresponding decision threshold (i.e., the second trigger threshold) based on a preset third trigger threshold corresponding to the serving cell, a preset fourth trigger threshold corresponding to the different system neighboring cell, or the third trigger threshold and a preset fifth trigger threshold corresponding to the different system neighboring cell. By carrying out secondary network cell switching judgment on the communication quality of the service cell and the heterogeneous system neighbor cell, the method can report a measurement report containing the first signal quality and the second signal quality to a base station under the condition that the network environment of the current service cell is not suitable for communication any more and the network signal quality corresponding to the heterogeneous system neighbor cell can ensure communication with the service cell, and timely switch the service cell of the current resident network to the heterogeneous system neighbor cell, thereby realizing timely switching of the service cell in the communication process, preventing the network environment of the service cell where a terminal is located from further deteriorating or even dropping, ensuring the continuity of voice communication service and improving the communication experience in the voice communication process; the original trigger threshold value can be optimized based on the current state information (such as speed, magnetic field, geographic position and the like), so that an accurate trigger threshold value is obtained, and the accuracy in the network cell switching process is improved; and when the different system neighbor cell does not meet the switching condition, the target different system neighbor cell in at least one historical different system neighbor cell is taken into reference, and when the target different system neighbor cell meets the network cell switching condition, the target different system neighbor cell can be switched, so that the continuity of voice call service is further ensured, and the call experience in the voice call process is improved.
The following are device embodiments of the present application, which may be used to perform method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.
Referring to fig. 7, a schematic structural diagram of a network cell switching device according to an exemplary embodiment of the present application is shown. The network cell switching device may be implemented as all or part of the device by software, hardware or a combination of both. The apparatus 1 comprises a measurement configuration receiving module 11, a signal quality acquisition module 12 and a serving cell handover module 13.
The measurement configuration receiving module 11 is configured to receive a cell measurement configuration sent by a base station corresponding to a serving cell in a voice call state, where the cell measurement configuration includes a first trigger threshold corresponding to the serving cell and a second trigger threshold of a neighboring cell of a different system;
a signal quality acquisition module 12, configured to acquire a first signal quality of the serving cell and a second signal quality of the inter-system neighbor cell;
a serving cell switching module 13, configured to determine that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, and obtain a preset third trigger threshold corresponding to the serving cell, a preset fourth trigger threshold corresponding to the inter-system neighbor cell, or a preset fifth trigger threshold corresponding to the inter-system neighbor cell; and reporting a measurement report containing the first signal quality and the second signal quality to the base station based on the third trigger threshold and the fourth trigger threshold or based on the third trigger threshold and the fifth trigger threshold, wherein the measurement report is used for indicating the base station to switch the current resident network cell from the service cell to the inter-system neighbor cell, the third trigger threshold is smaller than the first trigger threshold, and the fourth trigger threshold is smaller than the second trigger threshold and larger than the fifth trigger threshold.
Optionally, as shown in fig. 8, the serving cell switching module 13 includes:
a first switching unit 131, configured to set the second trigger threshold to the fourth trigger threshold to trigger reporting of a measurement report including the first signal quality and the second signal quality to the base station when the first signal quality is greater than the third trigger threshold and the second signal quality is greater than the fourth trigger threshold;
a second switching unit 132, configured to set the second trigger threshold to the fifth trigger threshold to trigger reporting of a measurement report including the first signal quality and the second signal quality to the base station when the first signal quality is less than the third trigger threshold and the second signal quality is greater than the fifth trigger threshold.
Alternatively, as shown in fig. 9, the first switching unit 131 includes:
a threshold setting triggering subunit 1311, configured to set the second triggering threshold to the fourth triggering threshold to trigger reporting of a measurement report including the first signal quality and the second signal quality to the base station when the first signal quality is greater than the third triggering threshold and is less than a sixth triggering threshold corresponding to the preset serving cell, and the second signal quality is greater than the fourth triggering threshold, where the sixth triggering threshold is greater than the third triggering threshold and is less than the first triggering threshold;
A serving cell camping subunit 1312, configured to continue camping on the serving cell when the first signal quality is greater than the sixth trigger threshold and less than the first trigger threshold, and the second signal quality is greater than the fourth signal quality;
a history neighbor triggering subunit 1313, configured to trigger the history neighbor acquisition module 14 when the first signal quality is greater than the sixth triggering threshold and less than the first triggering threshold, and the second signal quality is greater than the fourth signal quality.
Alternatively, as shown in fig. 11, the apparatus 1 includes:
the history neighbor cell obtaining module 14 is configured to obtain at least one resident history heterogeneous system cell;
and a target inter-system cell determining module 15, configured to determine a target inter-system cell from the historical inter-system cells, and execute the step of acquiring the first signal quality of the serving cell and the second signal quality of the inter-system neighbor cell with the target inter-system cell as the inter-system neighbor cell.
Alternatively, as shown in fig. 11, the apparatus 1 includes:
a signal quality optimization processing module 16, configured to perform optimization processing on the second signal quality based on the second trigger threshold, so as to obtain a target second signal quality that is greater than the second trigger threshold;
A measurement report generation module 17 for generating a measurement report comprising said first signal quality and said target second signal quality.
Alternatively, as shown in fig. 11, the apparatus 1 includes:
the threshold optimization processing module 18 is configured to obtain current state information of a terminal, and obtain at least one original trigger threshold of a preset original third trigger threshold corresponding to the serving cell, a preset original sixth trigger threshold corresponding to the serving cell, a preset original fourth trigger threshold corresponding to the neighboring cell of the different system, and a preset original fifth trigger threshold corresponding to the neighboring cell of the different system;
the threshold optimization processing module 18 is further configured to perform optimization processing on the original trigger threshold based on the state information, so as to obtain a trigger threshold corresponding to the original trigger threshold after the optimization processing.
Optionally, the history neighbor cell obtaining module 14 is specifically configured to:
determining that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the fifth trigger threshold, and acquiring at least one resident historical heterogeneous system cell;
the target inter-system cell determining module 15 is further configured to determine a target inter-system cell from the historical inter-system cells, and perform the step of obtaining the first signal quality of the serving cell and the second signal quality of the inter-system neighbor cell with the target inter-system cell as the inter-system neighbor cell.
Optionally, as shown in fig. 10, the target inter-system cell determining module 15 includes:
a cell priority determining unit 151, configured to obtain network performance parameters of each of the historical heterogeneous system cells, and determine a cell priority of the historical heterogeneous system cell according to the network performance parameters;
a target inter-system cell determining unit 152, configured to determine, among the historical inter-system cells, a target inter-system cell indicated by the highest cell priority.
It should be noted that, when the network cell switching apparatus provided in the foregoing embodiment performs the network cell switching method, only the division of the foregoing functional modules is used as an example, in practical application, the foregoing functional allocation may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the network cell switching device and the network cell switching method embodiment provided in the foregoing embodiments belong to the same concept, which embody the detailed implementation process in the method embodiment, and are not repeated here.
The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments.
In this embodiment of the present application, in a voice call state, a terminal receives a cell measurement configuration sent by a base station corresponding to a serving cell, where the cell measurement configuration includes a first trigger threshold corresponding to the serving cell and a second trigger threshold of a different system neighboring cell, obtains a first signal quality of the serving cell and a second signal quality of the different system neighboring cell, determines that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, and when the signal quality of the serving cell meets a corresponding decision threshold (i.e., the first trigger threshold) and the signal quality of the different system neighboring cell does not meet a corresponding decision threshold (i.e., the second trigger threshold), determines that the signal quality of the different system neighboring cell meets a corresponding decision threshold (i.e., the second trigger threshold) based on a preset third trigger threshold corresponding to the serving cell, a preset fourth trigger threshold corresponding to the different system neighboring cell, or the third trigger threshold and a preset fifth trigger threshold corresponding to the different system neighboring cell. By carrying out secondary network cell switching judgment on the communication quality of the service cell and the heterogeneous system neighbor cell, the method can report a measurement report containing the first signal quality and the second signal quality to a base station under the condition that the network environment of the current service cell is not suitable for communication any more and the network signal quality corresponding to the heterogeneous system neighbor cell can ensure communication with the service cell, and timely switch the service cell of the current resident network to the heterogeneous system neighbor cell, thereby realizing timely switching of the service cell in the communication process, preventing the network environment of the service cell where a terminal is located from further deteriorating or even dropping, ensuring the continuity of voice communication service and improving the communication experience in the voice communication process; the original trigger threshold value can be optimized based on the current state information (such as speed, magnetic field, geographic position and the like), so that an accurate trigger threshold value is obtained, and the accuracy in the network cell switching process is improved; and when the different system neighbor cell does not meet the switching condition, the target different system neighbor cell in at least one historical different system neighbor cell is taken into reference, and when the target different system neighbor cell meets the network cell switching condition, the target different system neighbor cell can be switched, so that the continuity of voice call service is further ensured, and the call experience in the voice call process is improved.
The embodiment of the present application further provides a computer storage medium, where the computer storage medium may store a plurality of instructions, where the instructions are adapted to be loaded by a processor and executed by the processor to perform the network cell handover method according to the embodiment shown in fig. 1 to fig. 6, and the specific execution process may refer to the specific description of the embodiment shown in fig. 1 to fig. 6, which is not repeated herein.
The present application further provides a computer program product, where at least one instruction is stored, where the at least one instruction is loaded by the processor and executed by the processor to perform the network cell handover method according to the embodiment shown in fig. 1 to fig. 6, and the specific execution process may refer to the specific description of the embodiment shown in fig. 1 to fig. 6, which is not repeated herein.
Referring to fig. 12, a block diagram of an electronic device according to an exemplary embodiment of the present application is shown. An electronic device in the present application may include one or more of the following components: processor 110, memory 120, input device 130, output device 140, and bus 150. The processor 110, the memory 120, the input device 130, and the output device 140 may be connected by a bus 150.
Processor 110 may include one or more processing cores. The processor 110 utilizes various interfaces and lines to connect various portions of the overall electronic device, perform various functions of the electronic device 100, and process data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 120, and invoking data stored in the memory 120. Alternatively, the processor 110 may be implemented in at least one hardware form of digital signal processing (digital signal processing, DSP), field-programmable gate array (field-programmable gate array, FPGA), programmable logic array (programmable logic Array, PLA). The processor 110 may integrate one or a combination of several of a central processing unit (central processing unit, CPU), an image processor (graphics processing unit, GPU), and a modem, etc. The CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for being responsible for rendering and drawing of display content; the modem is used to handle wireless communications. It will be appreciated that the modem may not be integrated into the processor 110 and may be implemented solely by a single communication chip.
The memory 120 may include a random access memory (random Access Memory, RAM) or a read-only memory (ROM). Optionally, the memory 120 includes a non-transitory computer readable medium (non-transitory computer-readable storage medium). Memory 120 may be used to store instructions, programs, code, sets of codes, or sets of instructions. The memory 120 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, which may be an Android (Android) system, including an Android system-based deep development system, an IOS system developed by apple corporation, including an IOS system-based deep development system, or other systems, instructions for implementing at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing various method embodiments described below, and the like. The storage data area may also store data created by the electronic device in use, such as phonebooks, audiovisual data, chat log data, and the like.
Referring to FIG. 13, the memory 120 may be divided into an operating system space in which the operating system is running and a user space in which native and third party applications are running. In order to ensure that different third party application programs can achieve better operation effects, the operating system allocates corresponding system resources for the different third party application programs. However, the requirements of different application scenarios in the same third party application program on system resources are different, for example, under the local resource loading scenario, the third party application program has higher requirement on the disk reading speed; in the animation rendering scene, the third party application program has higher requirements on the GPU performance. The operating system and the third party application program are mutually independent, and the operating system often cannot timely sense the current application scene of the third party application program, so that the operating system cannot perform targeted system resource adaptation according to the specific application scene of the third party application program.
In order to enable the operating system to distinguish specific application scenes of the third-party application program, data communication between the third-party application program and the operating system needs to be communicated, so that the operating system can acquire current scene information of the third-party application program at any time, and targeted system resource adaptation is performed based on the current scene.
Taking an operating system as an Android system as an example, as shown in fig. 14, a program and data stored in the memory 120 may be stored in the memory 120 with a Linux kernel layer 320, a system runtime library layer 340, an application framework layer 360 and an application layer 380, where the Linux kernel layer 320, the system runtime library layer 340 and the application framework layer 360 belong to an operating system space, and the application layer 380 belongs to a user space. The Linux kernel layer 320 provides the underlying drivers for various hardware of the electronic device, such as display drivers, audio drivers, camera drivers, bluetooth drivers, wi-Fi drivers, power management, and the like. The system runtime layer 340 provides the main feature support for the Android system through some C/c++ libraries. For example, the SQLite library provides support for databases, the OpenGL/ES library provides support for 3D graphics, the Webkit library provides support for browser kernels, and the like. Also provided in the system runtime library layer 340 is a An Zhuoyun runtime library (Android run) which provides mainly some core libraries that can allow developers to write Android applications using the Java language. The application framework layer 360 provides various APIs that may be used in building applications, which developers can also build their own applications by using, for example, campaign management, window management, view management, notification management, content provider, package management, call management, resource management, location management. At least one application program is running in the application layer 380, and these application programs may be native application programs of the operating system, such as a contact program, a short message program, a clock program, a camera application, etc.; and may also be a third party application developed by a third party developer, such as a game-like application, instant messaging program, photo beautification program, network cell switch program, etc.
Taking an operating system as an IOS system as an example, the program and data stored in the memory 120 are shown in fig. 15, the IOS system includes: core operating system layer 420 (Core OS layer), core service layer 440 (Core Services layer), media layer 460 (Media layer), and touchable layer 480 (Cocoa Touch Layer). The core operating system layer 420 includes an operating system kernel, drivers, and underlying program frameworks that provide more hardware-like functionality for use by the program frameworks at the core services layer 440. The core services layer 440 provides system services and/or program frameworks required by the application, such as a Foundation (Foundation) framework, an account framework, an advertisement framework, a data storage framework, a network connection framework, a geographic location framework, a sports framework, and the like. The media layer 460 provides an interface for applications related to audiovisual aspects, such as a graphics-image related interface, an audio technology related interface, a video technology related interface, an audio video transmission technology wireless play (AirPlay) interface, and so forth. The touchable layer 480 provides various commonly used interface-related frameworks for application development, with the touchable layer 480 being responsible for user touch interactions on the electronic device. Such as a local notification service, a remote push service, an advertisement framework, a game tool framework, a message User Interface (UI) framework, a User Interface UIKit framework, a map framework, and so forth.
Among the frameworks illustrated in fig. 15, frameworks related to most applications include, but are not limited to: the infrastructure in core services layer 440 and the UIKit framework in touchable layer 480. The infrastructure provides many basic object classes and data types, providing the most basic system services for all applications, independent of the UI. While the class provided by the UIKit framework is a basic UI class library for creating touch-based user interfaces, iOS applications can provide UIs based on the UIKit framework, so it provides the infrastructure for applications to build user interfaces, draw, process and user interaction events, respond to gestures, and so on.
The manner and principle of implementing data communication between the third party application program and the operating system in the IOS system may refer to the Android system, which is not described herein.
The input device 130 is configured to receive input instructions or data, and the input device 130 includes, but is not limited to, a keyboard, a mouse, a camera, a microphone, or a touch device. The output device 140 is used to output instructions or data, and the output device 140 includes, but is not limited to, a display device, a speaker, and the like. In one example, the input device 130 and the output device 140 may be combined, and the input device 130 and the output device 140 are a touch display screen for receiving a touch operation thereon or thereabout by a user using a finger, a touch pen, or any other suitable object, and displaying a user interface of each application program. Touch display screens are typically provided on the front panel of an electronic device. The touch display screen may be designed as a full screen, a curved screen, or a contoured screen. The touch display screen can also be designed to be a combination of a full screen and a curved screen, and a combination of a special-shaped screen and a curved screen, which is not limited in the embodiment of the application.
In addition, those skilled in the art will appreciate that the configuration of the electronic device shown in the above-described figures does not constitute a limitation of the electronic device, and the electronic device may include more or less components than illustrated, or may combine certain components, or may have a different arrangement of components. For example, the electronic device further includes components such as a radio frequency circuit, an input unit, a sensor, an audio circuit, a wireless fidelity (wireless fidelity, wiFi) module, a power supply, and a bluetooth module, which are not described herein.
In the embodiment of the present application, the execution subject of each step may be the electronic device described above. Optionally, the execution subject of each step is an operating system of the electronic device. The operating system may be an android system, an IOS system, or other operating systems, which embodiments of the present application do not limit.
The electronic device of the embodiment of the application may further be provided with a display device, where the display device may be various devices capable of implementing a display function, for example: cathode ray tube displays (cathode ray tubedisplay, CR), light-emitting diode displays (light-emitting diode display, LED), electronic ink screens, liquid crystal displays (liquid crystal display, LCD), plasma display panels (plasma display panel, PDP), and the like. A user may utilize a display device on electronic device 101 to view displayed text, images, video, etc. The electronic device may be a smart phone, a tablet computer, a gaming device, an AR (Augmented Reality ) device, an automobile, a data storage device, an audio playing device, a video playing device, a notebook, a desktop computing device, a wearable device such as an electronic watch, electronic glasses, an electronic helmet, an electronic bracelet, an electronic necklace, an electronic article of clothing, etc.
In the electronic device shown in fig. 12, the electronic device may be a terminal, and the processor 110 may be configured to invoke the network cell handover application program stored in the memory 120, and specifically perform the following operations:
receiving cell measurement configuration issued by a base station corresponding to a serving cell in a voice call state, wherein the cell measurement configuration comprises a first trigger threshold corresponding to the serving cell and a second trigger threshold of a neighboring cell of a different system;
acquiring a first signal quality of the serving cell and a second signal quality of the inter-system neighbor cell;
determining that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, and acquiring a preset third trigger threshold corresponding to the serving cell, a preset fourth trigger threshold corresponding to the inter-system neighbor cell or a preset fifth trigger threshold corresponding to the inter-system neighbor cell;
reporting a measurement report containing the first signal quality and the second signal quality to the base station based on the third trigger threshold and the fourth trigger threshold, or based on the third trigger threshold and the fifth trigger threshold, the measurement report being used to instruct the base station to handover a current camping cell from the serving cell to the inter-system neighbor cell, the third trigger threshold being smaller than the first trigger threshold, the fourth trigger threshold being smaller than the second trigger threshold and larger than the fifth trigger threshold.
In one embodiment, the processor 110, when executing the step of reporting the measurement report including the first signal quality and the second signal quality to the base station based on the third trigger threshold and the fourth trigger threshold, specifically performs the following operations:
when the first signal quality is greater than the third trigger threshold and the second signal quality is greater than the fourth trigger threshold, setting the second trigger threshold to the fourth trigger threshold to trigger reporting of a measurement report containing the first signal quality and the second signal quality to the base station;
the reporting, based on the third trigger threshold and the fifth trigger threshold, a measurement report including the first signal quality and the second signal quality to the base station includes:
and when the first signal quality is smaller than the third trigger threshold and the second signal quality is larger than the fifth trigger threshold, setting the second trigger threshold to the fifth trigger threshold to trigger reporting of a measurement report containing the first signal quality and the second signal quality to the base station.
In one embodiment, the processor 110, when executing the step of setting the second trigger threshold to the fourth trigger threshold to trigger reporting of the measurement report including the first signal quality and the second signal quality to the base station when the first signal quality is greater than the third trigger threshold and the second signal quality is greater than the fourth trigger threshold, specifically executes the following operations:
When the first signal quality is greater than the third trigger threshold and is smaller than a sixth trigger threshold corresponding to the preset serving cell, and the second signal quality is greater than the fourth trigger threshold, setting the second trigger threshold to the fourth trigger threshold to trigger reporting of a measurement report containing the first signal quality and the second signal quality to the base station, wherein the sixth trigger threshold is greater than the third trigger threshold and is smaller than the first trigger threshold.
In one embodiment, the processor 110, when executing the network cell handover method, specifically performs the following operations:
continuing to camp on the service cell when the first signal quality is greater than the sixth trigger threshold and less than the first trigger threshold and the second signal quality is greater than the fourth signal quality; or alternatively, the first and second heat exchangers may be,
when the first signal quality is greater than the sixth trigger threshold and less than the first trigger threshold and the second signal quality is greater than the fourth signal quality, acquiring at least one resident historical heterogeneous system cell;
and determining a target inter-system cell from the historical inter-system cells, taking the target inter-system cell as the inter-system neighbor cell, and executing the step of acquiring the first signal quality of the service cell and the second signal quality of the inter-system neighbor cell.
In one embodiment, before the processor 110 performs the third trigger threshold corresponding to the serving cell, the fourth trigger threshold corresponding to the inter-system neighbor cell, and the fifth trigger threshold corresponding to the inter-system neighbor cell, the following operations are further performed:
optimizing the second signal quality based on the second trigger threshold to obtain a target second signal quality greater than the second trigger threshold;
a measurement report is generated comprising the first signal quality and the target second signal quality.
In one embodiment, the processor 110, when executing the network cell handover method, further performs the following operations:
acquiring current state information of a terminal, and acquiring at least one original trigger threshold of a preset original third trigger threshold corresponding to the serving cell, a preset original sixth trigger threshold corresponding to the serving cell, a preset original fourth trigger threshold corresponding to the inter-system neighbor cell and a preset original fifth trigger threshold corresponding to the inter-system neighbor cell;
And optimizing the original trigger threshold based on the state information to obtain a trigger threshold corresponding to the original trigger threshold after optimizing.
In one embodiment, the processor 110, when executing the network cell handover method, further performs the following operations:
determining that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the fifth trigger threshold, and acquiring at least one resident historical heterogeneous system cell;
and determining a target inter-system cell from the historical inter-system cells, taking the target inter-system cell as the inter-system neighbor cell, and executing the step of acquiring the first signal quality of the service cell and the second signal quality of the inter-system neighbor cell.
In one embodiment, the processor 110, when executing the determining a target inter-system cell from each of the historical inter-system cells, specifically executes the following steps:
acquiring network performance parameters of each historical heterogeneous system cell, and determining cell priority of each historical heterogeneous system cell according to the network performance parameters;
and determining a target heterogeneous system cell indicated by the highest cell priority in each historical heterogeneous system cell.
In this embodiment of the present application, in a voice call state, a terminal receives a cell measurement configuration sent by a base station corresponding to a serving cell, where the cell measurement configuration includes a first trigger threshold corresponding to the serving cell and a second trigger threshold of a different system neighboring cell, obtains a first signal quality of the serving cell and a second signal quality of the different system neighboring cell, determines that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, and when the signal quality of the serving cell meets a corresponding decision threshold (i.e., the first trigger threshold) and the signal quality of the different system neighboring cell does not meet a corresponding decision threshold (i.e., the second trigger threshold), determines that the signal quality of the different system neighboring cell meets a corresponding decision threshold (i.e., the second trigger threshold) based on a preset third trigger threshold corresponding to the serving cell, a preset fourth trigger threshold corresponding to the different system neighboring cell, or the third trigger threshold and a preset fifth trigger threshold corresponding to the different system neighboring cell. By carrying out secondary network cell switching judgment on the communication quality of the service cell and the heterogeneous system neighbor cell, the method can report a measurement report containing the first signal quality and the second signal quality to a base station under the condition that the network environment of the current service cell is not suitable for communication any more and the network signal quality corresponding to the heterogeneous system neighbor cell can ensure communication with the service cell, and timely switch the service cell of the current resident network to the heterogeneous system neighbor cell, thereby realizing timely switching of the service cell in the communication process, preventing the network environment of the service cell where a terminal is located from further deteriorating or even dropping, ensuring the continuity of voice communication service and improving the communication experience in the voice communication process; the original trigger threshold value can be optimized based on the current state information (such as speed, magnetic field, geographic position and the like), so that an accurate trigger threshold value is obtained, and the accuracy in the network cell switching process is improved; and when the different system neighbor cell does not meet the switching condition, the target different system neighbor cell in at least one historical different system neighbor cell is taken into reference, and when the target different system neighbor cell meets the network cell switching condition, the target different system neighbor cell can be switched, so that the continuity of voice call service is further ensured, and the call experience in the voice call process is improved.
It will be clear to a person skilled in the art that the solution of the present application may be implemented by means of software and/or hardware. "Unit" and "module" in this specification refer to software and/or hardware capable of performing a specific function, either alone or in combination with other components, such as Field programmable gate arrays (Field-ProgrammaBLE Gate Array, FPGAs), integrated circuits (Integrated Circuit, ICs), etc.
It should be noted that, for simplicity of description, the foregoing method embodiments are all expressed as a series of action combinations, but it should be understood by those skilled in the art that the present application is not limited by the order of actions described, as some steps may be performed in other order or simultaneously in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required in the present application.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, such as the division of the units, merely a logical function division, and there may be additional manners of dividing the actual implementation, such as multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some service interface, device or unit indirect coupling or communication connection, electrical or otherwise.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a memory, including several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application. And the aforementioned memory includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Those of ordinary skill in the art will appreciate that all or a portion of the steps in the various methods of the above embodiments may be performed by hardware associated with a program that is stored in a computer readable memory, which may include: flash disk, read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), magnetic or optical disk, and the like.
The foregoing is merely exemplary embodiments of the present disclosure and is not intended to limit the scope of the present disclosure. That is, equivalent changes and modifications are contemplated by the teachings of this disclosure, which fall within the scope of the present disclosure. Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a scope and spirit of the disclosure being indicated by the claims.

Claims (10)

1. A method of network cell handover, the method comprising:
Receiving cell measurement configuration issued by a base station corresponding to a serving cell in a voice call state, wherein the cell measurement configuration comprises a first trigger threshold corresponding to the serving cell and a second trigger threshold of a neighboring cell of a different system;
acquiring a first signal quality of the serving cell and a second signal quality of the inter-system neighbor cell;
determining that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the second trigger threshold, and acquiring a preset third trigger threshold corresponding to the serving cell, a preset fourth trigger threshold corresponding to the inter-system neighbor cell or a preset fifth trigger threshold corresponding to the inter-system neighbor cell;
reporting a measurement report containing the first signal quality and the second signal quality to the base station based on the third trigger threshold and the fourth trigger threshold, or based on the third trigger threshold and the fifth trigger threshold, the measurement report being used to instruct the base station to handover a current camped cell from the serving cell to the inter-system neighbor cell, the third trigger threshold being smaller than the first trigger threshold, the fourth trigger threshold being smaller than the second trigger threshold and larger than the fifth trigger threshold;
Wherein reporting, based on the third trigger threshold and the fourth trigger threshold, a measurement report including the first signal quality and the second signal quality to the base station includes:
and when the first signal quality is greater than the third trigger threshold and the second signal quality is greater than the fourth trigger threshold, setting the second trigger threshold to the fourth trigger threshold to trigger reporting of a measurement report containing the first signal quality and the second signal quality to the base station.
2. The method of claim 1, wherein reporting the measurement report containing the first signal quality and the second signal quality to the base station based on the third trigger threshold and the fifth trigger threshold comprises:
and when the first signal quality is smaller than the third trigger threshold and the second signal quality is larger than the fifth trigger threshold, setting the second trigger threshold to the fifth trigger threshold to trigger reporting of a measurement report containing the first signal quality and the second signal quality to the base station.
3. The method of claim 2, wherein the setting the second trigger threshold to the fourth trigger threshold to trigger reporting of a measurement report containing the first signal quality and the second signal quality to the base station when the first signal quality is greater than the third trigger threshold and the second signal quality is greater than the fourth trigger threshold comprises:
When the first signal quality is greater than the third trigger threshold and is smaller than a sixth trigger threshold corresponding to the preset serving cell, and the second signal quality is greater than the fourth trigger threshold, setting the second trigger threshold to the fourth trigger threshold to trigger reporting of a measurement report containing the first signal quality and the second signal quality to the base station, wherein the sixth trigger threshold is greater than the third trigger threshold and is smaller than the first trigger threshold.
4. A method according to claim 3, characterized in that the method further comprises:
when the first signal quality is greater than the sixth trigger threshold and less than the first trigger threshold and the second signal quality is greater than the fourth trigger threshold, continuing to camp on the serving cell; or alternatively, the first and second heat exchangers may be,
when the first signal quality is greater than the sixth trigger threshold and less than the first trigger threshold and the second signal quality is greater than the fourth trigger threshold, acquiring at least one resident historical heterogeneous system cell;
and determining a target inter-system cell from the historical inter-system cells, taking the target inter-system cell as the inter-system neighbor cell, and executing the step of acquiring the first signal quality of the service cell and the second signal quality of the inter-system neighbor cell.
5. The method of claim 1, wherein before reporting the measurement report containing the first signal quality and the second signal quality to the base station, further comprising:
optimizing the second signal quality based on the second trigger threshold to obtain a target second signal quality greater than the second trigger threshold;
a measurement report is generated comprising the first signal quality and the target second signal quality.
6. The method according to any one of claims 1 to 4, further comprising:
acquiring current state information of a terminal, and acquiring at least one original trigger threshold of a preset original third trigger threshold corresponding to the serving cell, a preset original sixth trigger threshold corresponding to the serving cell, a preset original fourth trigger threshold corresponding to the inter-system neighbor cell and a preset original fifth trigger threshold corresponding to the inter-system neighbor cell;
and optimizing the original trigger threshold based on the state information to obtain a trigger threshold corresponding to the original trigger threshold after optimizing.
7. The method according to claim 1, wherein the method further comprises:
Determining that the first signal quality is smaller than the first trigger threshold and the second signal quality is smaller than the fifth trigger threshold, and acquiring at least one resident historical heterogeneous system cell;
and determining a target inter-system cell from the historical inter-system cells, taking the target inter-system cell as the inter-system neighbor cell, and executing the step of acquiring the first signal quality of the service cell and the second signal quality of the inter-system neighbor cell.
8. The method of claim 7, wherein said determining a target inter-system cell from each of said historical inter-system cells comprises:
acquiring network performance parameters of each historical heterogeneous system cell, and determining cell priority of each historical heterogeneous system cell according to the network performance parameters;
and determining a target heterogeneous system cell indicated by the highest cell priority in each historical heterogeneous system cell.
9. A computer storage medium storing a plurality of instructions adapted to be loaded by a processor and to perform the method steps of any one of claims 1 to 8.
10. An electronic device, comprising: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the method steps of any of claims 1-8.
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