CN112423250A

CN112423250A - Method and device for improving call quality, terminal and storage medium

Info

Publication number: CN112423250A
Application number: CN202011205305.8A
Authority: CN
Inventors: 李欣然
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-02-26
Anticipated expiration: 2040-11-02
Also published as: CN112423250B

Abstract

The embodiment of the application discloses a method for improving call quality, which comprises the following steps: responding to the requirement of a call service, and sending a first message to network equipment under the condition that harmonic interference exists between a Wi-Fi frequency band connected with the terminal and a resident communication frequency band and at least one candidate cell exists in response to the requirement of the call service; wherein the signal quality parameter of the candidate cell is greater than a specific threshold, and the first message is used for triggering the network device to instruct the terminal to perform cell handover. The embodiment of the application also provides a device, a terminal and a storage medium for improving the call quality.

Description

Method and device for improving call quality, terminal and storage medium

Technical Field

The present application relates to the field of electronic device technologies, and in particular, but not limited to, a method and an apparatus for improving call quality, a terminal, and a storage medium.

Background

The call service is performed on the premise of Wi-Fi (Wireless Fidelity) connection, which is a common call scenario at present. However, when the terminal resides in some specific communication bands and Wi-Fi bands, harmonic interference exists between bands such as telecommunication LTE (Long Term Evolution) B5(Band 5) and Wi-Fi CH13(Channel 13 ).

In the related art, an uplink communication frequency band and a Wi-Fi frequency band are used in a Time-sharing manner through a Time-division multiplexing (TDM) Time-sharing mechanism. But cannot fully guarantee the call quality at any time during the connection of the Wi-Fi band in which harmonic interference is present.

Disclosure of Invention

The embodiment of the application provides a method and a device for improving call quality, a terminal and a storage medium.

The technical scheme of the embodiment of the application is realized as follows:

in a first aspect, an embodiment of the present application provides a method for improving call quality, which is applied to a terminal, and the method includes:

responding to the requirement of a call service, and sending a first message to network equipment under the condition that harmonic interference exists in a Wi-Fi frequency band connected with the terminal and a resident communication frequency band and at least one candidate cell exists;

wherein the signal quality parameter of the candidate cell is greater than a specific threshold, and the first message is used for triggering the network device to instruct the terminal to perform cell handover.

In a second aspect, an embodiment of the present application provides a method for improving call quality, which is applied to a network device, and the method includes:

receiving a first message sent by a terminal; the first message is sent by the terminal in response to the requirement of a call service under the conditions that harmonic interference exists in a Wi-Fi frequency band connected with the terminal and a resident communication frequency band and at least one candidate cell exists; the candidate neighbor cell list is generated by measuring the neighbor cells of the terminal under the condition that harmonic interference exists between the Wi-Fi frequency band connected with the terminal and the resident communication frequency band;

and triggering the terminal to carry out cell switching according to the first message.

In a third aspect, an embodiment of the present application provides an apparatus for improving call quality, where the apparatus is applied to a terminal, and the apparatus includes a first determining module and a sending module, where:

the first determining module is configured to determine, in response to a demand for a call service, that harmonic interference exists between a Wi-Fi frequency band connected to the terminal and a resident communication frequency band, and that at least one candidate cell exists; wherein the signal quality parameter of the candidate cell is greater than a certain threshold;

the sending module is used for sending a first message to the network equipment; the first message is used for triggering the network equipment to indicate the terminal to perform cell switching.

In a fourth aspect, an embodiment of the present application provides an apparatus for improving call quality, which is applied to a network device, and the apparatus includes a first receiving module and a triggering module, where:

the first receiving module is used for receiving a first message sent by a terminal; the first message is sent by the terminal in response to the requirement of a call service under the conditions that harmonic interference exists in a Wi-Fi frequency band connected with the terminal and a resident communication frequency band and at least one candidate cell exists; the candidate neighbor cell list is generated by measuring the neighbor cells of the terminal under the condition that harmonic interference exists between the Wi-Fi frequency band connected with the terminal and the resident communication frequency band;

and the triggering module is used for triggering the terminal to carry out cell switching according to the first message.

In a fifth aspect, an embodiment of the present application provides a terminal, including a memory and a processor, where the memory stores a computer program that is executable on the processor, and the processor executes the computer program to implement the steps in the method for improving call quality on the terminal side.

In a sixth aspect, an embodiment of the present application provides a network device, including a memory and a processor, where the memory stores a computer program that is executable on the processor, and the processor implements the steps in the method for improving call quality on the network device side when executing the program.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the method for improving call quality on a terminal side; or, the computer program, when executed by a processor, implements the steps in the method for improving call quality on the network device side.

The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:

in the embodiment of the application, a terminal responds to the requirement of a call service, and sends a first message to network equipment under the condition that harmonic interference exists in a Wi-Fi frequency band connected with the terminal and a resident communication frequency band and at least one candidate cell exists; the candidate neighbor cell list is generated by measuring the neighbor cells of the terminal under the condition that harmonic interference exists between the Wi-Fi frequency band connected with the terminal and the resident communication frequency band; the first message is used for triggering the network equipment to indicate the terminal to carry out cell switching; therefore, when the terminal is connected with the Wi-Fi and has a call requirement, if harmonic interference exists between the Wi-Fi frequency band and the currently resident communication frequency band and a candidate cell with better signal quality parameters exists, the terminal triggers the network equipment to issue a measurement event so as to realize switching to an adjacent cell to carry out call service, avoid the influence of the harmonic interference on the call quality and improve the product experience of a user.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a method for improving call quality according to an embodiment of the present disclosure;

fig. 3 is a schematic flowchart of another method for improving call quality according to an embodiment of the present disclosure;

fig. 4 is an interaction flow diagram of a method for improving call quality according to an embodiment of the present disclosure;

fig. 5 is a logic flow diagram of a method for improving call quality according to an embodiment of the present application;

fig. 6 is a schematic structural diagram illustrating a structure of an apparatus for improving communication quality according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram illustrating another apparatus for improving communication quality according to an embodiment of the present disclosure;

fig. 8 is a schematic hardware entity diagram of a terminal according to an embodiment of the present disclosure;

fig. 9 is a hardware entity diagram of a network device according to an embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

It should be noted that the terms "first \ second \ third" referred to in the embodiments of the present application are only used for distinguishing similar objects and do not represent a specific ordering for the objects, and it should be understood that "first \ second \ third" may be interchanged under specific ordering or sequence if allowed, so that the embodiments of the present application described herein can be implemented in other orders than illustrated or described herein.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which embodiments of the present application belong. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Before describing the method for improving the call quality provided by the embodiment of the present application in detail, a communication system and terms related to the embodiment of the present application are briefly described.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application, which exemplarily shows a network device 110 and a terminal 120. In some embodiments, the communication system may include a plurality of network devices and each network device may include other numbers of terminals within the coverage area, which is not limited in this application.

A network device 110 in the communication system may provide communication coverage for a particular geographic area and may communicate with terminals 120 located within the coverage area. In some embodiments, the Network device 110 may be an eNB or an eNodeB (evolved Node B) in an LTE system, or a wireless controller in a CRAN (Cloud Radio Access Network), or the Network device 110 may be a Mobile switching center, a relay station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network device in a 5G (5th Generation Mobile Networks, fifth Generation Mobile communication technology) Network, or a Network device in a future communication system, or the like.

The communication system further comprises at least one terminal 120 located within the coverage area of the network device 110. As used herein, "terminal" includes, but is not limited to, a connection via a wire Line, such as a connection via PSTN (Public Switched Telephone network), DSL (Digital Subscriber Line), Digital cable, direct cable; and/or another data connection/network; and/or via a Wireless interface, such as a Digital television Network, a satellite Network, an AM-FM (Amplitude Modulation-Frequency Modulation) broadcast transmitter for a cellular Network, a WLAN (Wireless Local Area Network), such as a DVB-H (Digital Video Broadcasting-Handheld) Network; and/or means of another terminal arranged to receive/transmit communication signals; and/or IoT (Internet of Things) devices. A terminal that is arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a PCS (Personal Communications System) terminal that can combine a cellular radiotelephone with data processing, facsimile, and data Communications capabilities; a PDA (Personal Digital Assistant) that may include a radiotelephone, pager, internet/intranet access, web browser, notepad, calendar, and/or GPS (Global Positioning System) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal can refer to an access terminal, UE (User Equipment), subscriber sub-module, 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 phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA, a handheld device with Wireless communication capability, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal in a 5G Network or a terminal in a future evolved PLMN (Public Land Mobile Network), etc. For convenience of description, the above-mentioned devices are collectively referred to as a terminal.

The communication service is carried out on the premise of Wi-Fi connection, and is a common communication scene at present. However, when the terminal resides in some specific communication bands and Wi-Fi bands, such as the telecommunication LTE B5 band and the Wi-Fi CH13 band, harmonic interference (especially, second harmonic interference and third harmonic interference) may exist between the bands. If the user has a call requirement, the existence of harmonic interference may cause the lack of uplink resources, which causes Packet loss of an uplink PDCP (Packet Data Convergence Protocol) layer, thereby affecting the call quality; or when the user is using Wi-Fi for data service at the moment, the harmonic interference may also affect the experience of the user data service.

In the related art, an uplink communication frequency band and a Wi-Fi frequency band are used in a Time-sharing manner through a Time-division multiplexing (TDM) Time-sharing mechanism. TDM is to transmit different signals in different time periods of the same physical connection, and is a compromise method for achieving the efficiency balance between the Wi-Fi side and the Modem side of the terminal, but cannot completely guarantee the call quality at any time during the connection of the Wi-Fi band in which harmonic interference exists.

The embodiment of the application provides a method for improving call quality, which is applied to a terminal. The terminal includes, but is not limited to, a mobile phone, a notebook computer, a tablet computer and a web-enabled device, a multimedia device, a streaming media device, a mobile internet device, a wearable device or other types of terminal devices. The functions implemented by the method can be implemented by calling program codes through a processor in the terminal, and the program codes can be stored in a computer storage medium. The processor may be configured to perform the processing of the call quality enhancement process, and the memory may be configured to store data required and data generated during the call quality enhancement process. The terminal may also include a transceiver that may be used to receive and transmit data.

Fig. 2 is a schematic flowchart of a method for improving call quality provided in an embodiment of the present application, and is applied to a terminal, as shown in fig. 2, the method at least includes the following steps:

step S210, in response to a demand of a call service, sending a first message to a network device when harmonic interference exists in a Wi-Fi frequency band connected to the terminal and a resident communication frequency band, and at least one candidate cell exists.

Here, the first message is used to trigger the network device to instruct the terminal to perform cell handover.

Here, the candidate cell is a neighboring cell in which a signal quality parameter is greater than a specific threshold and harmonic interference with the Wi-Fi band does not exist. The Signal Quality may be RSRP (Reference Signal Receiving Power) or RSRQ (Reference Signal Receiving Quality).

It should be noted that, for the current serving cell accessed by the terminal, the neighboring cell is one or more cells covered with an overlap and provided with a handover relationship. The adjacent cells have the following functions: the terminal can smoothly alternate services among a plurality of cells with defined adjacent cell relations in a mobile state without interruption.

Fig. 3 is a schematic flowchart of another method for improving call quality provided in an embodiment of the present application, which is applied to a terminal, and as shown in fig. 3, the method at least includes the following steps:

step S310, under the condition that the terminal is connected to the Wi-Fi network, determining a Wi-Fi frequency band connected with the terminal and a resident communication frequency band.

Here, the Wi-Fi band is a very small part of the electromagnetic wave band, which defines the frequency range of the radio wave, and the Wi-Fi function of a general terminal supports the 2.4G band and the 5G band. Wherein the frequency range of 2.4G is from 2.4GHz (gigahertz) to 2.4835 GHz; the frequency range of 5G is 5.15GHz-5.825 GHz;

it will be appreciated that radio is a resource and most countries have provisions for which frequency bands to use. Wi-Fi (wireless fidelity) is a civil radio electromagnetic wave technology which mainly works in frequency bands allowed by countries where 2.4Ghz, 5Ghz and 60Ghz are new. 80.211b/g/n protocol Wi-Fi has a working frequency range of 2.4 GHz-2.48 GHz, which is divided into 14 bands, the first 13 bands each having a bandwidth of 20MHz (Mega Hertz), and the last one being larger. And overlapping areas are arranged between adjacent frequency bands.

Here, the reserved communication frequency band is a frequency band in which a frequency point of the current serving cell is located.

For example, GSM (Global System for Mobile Communications) has two frequency bands: 900MHz band and 1800MHz band. Taking the 4G standard LTE as an example, the LTE has a large number of Frequency bands, and the LTE FDD (Frequency-division Duplex) has 22 Frequency bands with the labels 1-22, where the Frequency bands with the labels 15 and 16 are not defined as reserved Frequency bands, and the other Frequency bands are defined with Frequency ranges. The LTE TDD (Time-division Duplex) has 9 frequency bands, the number of the frequency bands is 33-41, and the LTE is currently divided into four frequency bands: the frequency ranges of the A frequency band, the D frequency band, the E frequency band and the F frequency band are 2010 MHz-2025 MHz, 2570 MHz-2620 MHz, 2320 MHz-2370 MHz (2300 MHz-2400 MHz) and 1880 MHz-1920 MHz in sequence, and the frequency ranges correspond to the international reference numbers of 34, 38, 40 and 39 frequency bands respectively.

It should be noted that, when the terminal is started to search for a network, multiple frequency sweep search processes need to be performed according to the network system and frequency band information supported by the terminal to determine the network coverage information of the service operator in the current environment, and then initiate random access to reside in the current service cell.

And step S320, acquiring a mapping relation between the communication frequency band with harmonic interference and the Wi-Fi frequency band.

Here, a set of lists may be preset in the terminal, and the communication band having the harmonic interference may correspond to the Wi-Fi band.

Illustratively, there is a correspondence between, for example, the telecom LTE B5 band and the Wi-Fi CH13 band, and between the LTE B40 band and the Wi-Fi 2.4G band, etc.

And step S330, determining that harmonic interference exists between the Wi-Fi frequency band connected with the terminal and the resident communication frequency band according to the mapping relation.

Here, the determination is made through a preset mapping relationship after the terminal is connected to the Wi-Fi network.

Step S340, starting background search to measure the neighboring cell of the terminal.

Here, the Background Search (Background Search) procedure is to measure the frequency points of the neighboring cells by using the gap of the terminal in an idle state.

And step S350, taking the adjacent cell with the signal quality parameter larger than a specific threshold value and without harmonic interference with the Wi-Fi frequency band as a candidate cell according to the measurement result.

Here, the specific threshold is an absolute threshold value in a corresponding measurement event configured by the network.

It is noted that the process of determining candidate cells may be implemented as follows:

one possible implementation manner is that adjacent cells indicated in the measurement configuration are sequentially measured, whether signal quality parameters of the adjacent cells are larger than a specific threshold value or not is evaluated, and then the adjacent cells without harmonic interference with the current Wi-Fi frequency band are screened out to be used as candidate cells according to a preset mapping relation table with harmonic interference.

Another possible implementation manner is that in the measurement process, the neighboring cells not corresponding to the frequency points in the mapping relation table are directly measured, that is, the neighboring cells without harmonic interference with the Wi-Fi frequency band are filtered and then measured, so as to determine the neighboring cells with the signal quality parameters greater than the specific threshold as candidate cells.

Step S360, responding to the requirement of the call service, and sending a first message to the network device in the case that there is at least one candidate cell.

If at least one candidate cell is determined to exist through measurement, when a user needs to make a call, call service can be carried out in the adjacent cell through cell switching, and therefore the influence of harmonic interference on call quality is reduced.

It should be noted that the handover is mainly divided into three phases: measurement delivery, handover decision and handover execution related to handover. The network equipment issues the measurement configuration for switching to the terminal, the terminal reports the measurement report after the condition of the measurement configuration is met, the network equipment carries out switching judgment according to the measurement report, and the target cell is selected to execute switching.

Step S370, responding to the requirement of the call service, and establishing the call service through the circuit domain in the absence of the candidate cell.

Here, if the measurement finds that there is no neighboring cell with good signal quality parameters and/or there is no neighboring cell without harmonic interference, that is, there is no suitable neighboring cell to Switch, the to-be-called traffic is called from the CS (Circuit Switch) domain through degradation. Therefore, the mode of changing the call domain before call establishment avoids the influence of harmonic interference on call quality and data service, and improves the product experience of users.

In the embodiment of the application, after a terminal is connected to a Wi-Fi network, firstly, a Wi-Fi frequency band and a current resident communication frequency band are determined, then, according to the obtained mapping relation, the fact that harmonic interference exists between the Wi-Fi frequency band and the current resident frequency band is determined, and then, background searching is started to determine a candidate neighbor cell list meeting conditions; therefore, when the terminal is connected with the Wi-Fi and has a call requirement, if harmonic interference exists between the Wi-Fi frequency band and the currently resident communication frequency band, the terminal can avoid the influence of the harmonic interference on the call quality and the data service by cell switching or changing the call domain mode before call establishment, and the product experience of a user is improved.

Fig. 4 is an interaction flow diagram of a method for improving call quality according to an embodiment of the present application, where as shown in fig. 4, the method at least includes the following steps:

and step S401, the terminal establishes connection to the Wi-Fi network.

It can be understood that Wi-Fi is a technology that allows an electronic device to connect to a WLAN, and almost all terminals such as smart phones, tablet computers, and notebook computers support Wi-Fi internet access, which is the most widely used wireless network transmission technology today. The terminal is in the Wi-Fi network and then a preset Wi-Fi switch is turned on, so that the terminal can be connected to the Wi-Fi network; or connect to the wireless network by sending a specific command in a command line window.

And S402, under the condition that harmonic interference exists between the Wi-Fi frequency band and the communication frequency band, the terminal starts background search to measure the adjacent cell.

And step S403, the terminal adds the adjacent cell of which the signal quality parameter is greater than a specific threshold value and which has no harmonic interference with the Wi-Fi frequency band into a preset candidate adjacent cell list according to the measurement result.

Here, the candidate neighbor cell list includes information such as an identifier of a neighbor cell, a bandwidth of the neighbor cell, and the like, which are used for purposes of handover, management, and the like, and the candidate neighbor cell list is information of all neighbor cells having a handover relationship with the current serving cell, and the list is not equal to the final neighbor cell configuration of the cell.

Step S404, the terminal constructs the virtual signal quality parameter of the current service cell.

Here, the virtual signal quality parameter is below a particular threshold specified in the measurement event configured by the network device.

It should be noted that the virtual signal quality parameter is an erroneous signal quality parameter, and is not a result obtained by actual measurement, but a virtual value constructed for inducing the network to issue the handover event and the handover command.

Step S405, the terminal generates a specific measurement report according to the virtual signal quality parameter.

Here, the specific measurement report is generated in a case where the terminal has a candidate cell in a preset candidate neighbor cell list in response to a demand for a call service. That is, the specific measurement report is an erroneous measurement report constructed by the terminal.

Step S406, the terminal sends a specific measurement report to the network device when the candidate neighbor cell list has at least one candidate cell.

Here, sending a specific measurement report to a network device is used to trigger the network device to send a measurement event to the terminal. When a candidate cell meeting the requirement exists, a network is induced to send a switching event and a switching instruction by reporting a false Measurement Report (FAKE Measurement Report) during a call service, so that the effect of switching to a proper adjacent cell is achieved.

Step S407, the network device sends a measurement event to the terminal.

Here, the measurement event may be an a2 event. The a2 event refers to the serving cell's quality of service being worse than an absolute threshold; this event may be used to turn on measurements between certain cells, since a handover or the like may occur after this event has occurred.

Step S408, the terminal measures the at least one candidate cell according to the measurement event.

Step S409, the terminal sends a neighbor cell measurement report to the network equipment according to the measurement result.

Here, the neighbor cell measurement report is used to trigger the network device to send a handover command to the terminal.

In the implementation process, in order to perform cell switching as soon as possible to improve the call quality, the terminal can perform appropriate optimization on the measured signal quality parameters of the candidate cell to construct the neighbor cell measurement report; or the terminal preferentially sends the measurement report of the candidate cell to the network equipment.

Step S410, the network device sends a handover command to the terminal.

Here, when cell handover is required, preparation works such as resource application, data forwarding and the like are performed between the current serving cell and the target cell, and after the handover preparation is completed, the network device issues a handover command to enable the terminal to perform handover.

Step S411, the terminal switches to the target cell to perform the call service according to the switching command.

In the embodiment of the application, after the terminal is connected to a Wi-Fi network, if harmonic interference exists in a Wi-Fi frequency band and a communication frequency band, background search is started to measure adjacent cells, and a candidate adjacent cell list meeting conditions is generated; then the terminal further generates a specific measurement report by constructing the virtual signal quality parameter of the current service cell; then the terminal sends the specific measurement report to the network equipment so that the network equipment determines a target cell and issues a switching command; and finally, the terminal executes the switching according to the switching command. Therefore, when the demand of the call service exists in a Wi-Fi scene, the influence of harmonic interference on the call quality and the data service is avoided in a cell switching mode, and the product experience of a user is improved.

The method for improving the call quality is described below with reference to a specific embodiment, but it should be noted that the specific embodiment is only for better describing the present application and is not to be construed as a limitation to the present application.

When a user is connected with Wi-Fi and has a call service requirement, if harmonic interference exists between a Wi-Fi frequency band and a currently resident communication frequency band, the terminal can avoid the influence of the harmonic interference on the call quality and the data service by cell switching or changing a call domain mode before call establishment, and the product experience of the user is improved.

Fig. 5 is a schematic flow chart of prompting the call quality in a Wi-Fi scenario provided in the embodiment of the present application, and as shown in fig. 5, the flow chart includes the following steps:

and step S501, opening a Wi-Fi switch.

Here, the terminal turns on a Wi-Fi switch to connect to the Wi-Fi network.

Step S502, judging whether harmonic interference exists in the currently resident communication frequency band and Wi-Fi frequency band.

Here, a set of lists is preset in the terminal, and the communication band having harmonic interference is corresponded to the Wi-Fi band. When a user is connected with Wi-Fi, the terminal actively judges whether harmonic interference exists between the currently used Wi-Fi frequency band and the resident communication frequency band.

If harmonic interference exists between the currently used Wi-Fi frequency band and the resident communication frequency band, executing step S503; if there is no harmonic interference in the Wi-Fi band and the communication band, step S504 is executed.

Step S503, starting background search and forming a candidate neighbor list.

Here, if harmonic interference exists between the currently used Wi-Fi band and the resident communication band, the background search is started to measure the neighboring cell, and a neighboring cell list meeting the requirement, that is, a candidate neighboring cell list is formed.

Step S504, the status is kept unchanged.

Step S505, determine whether there is a target cell meeting the requirement in the candidate neighbor list.

Here, the target cell of the symbol requirement may be understood as a target cell in which the signal quality parameter reaches a certain threshold and which has no harmonic interference.

If the target cell meeting the requirement exists in the neighbor cell list, executing step S506; if no target cell meeting the requirement exists in the neighbor cell list, step S507 is executed.

Step S506, the target cell is switched to for conversation by reporting the error measurement report.

Here, the wrong measurement report indicates that the cell signal where the terminal resides is very poor, but the signal of the target cell is very good, so as to induce the network to issue the handover event, thereby achieving the purpose of handing over the cell.

In response to the demand for a telephony service,

step S507, establish the current call through the CS domain.

Here, the current call requirement is called out through the CS domain, and the influence of harmonic interference on the call quality and the data service is avoided by changing the mode of the call domain before the call is established.

In the embodiment of the application, a group of lists are preset in the terminal, and the communication frequency band with harmonic interference corresponds to the Wi-Fi frequency band. After a user connects a Wi-Fi network, a terminal actively judges whether a currently used Wi-Fi frequency band has harmonic interference with a resident communication frequency band, if so, background search is started to measure adjacent cells, and a candidate (no harmonic interference exists and signal quality parameters are better than a certain threshold) adjacent cell list is formed. If the appropriate adjacent cell exists, when the terminal needs to carry out the conversation service, the terminal deceives the network to send a switching event and a switching instruction by reporting a false Measurement Report so as to achieve the effect of switching to a target cell; if no suitable adjacent cell exists, the terminal degrades and calls out from the CS domain, thereby reducing the influence of harmonic interference on the call quality and the data service.

Based on the foregoing embodiment, an embodiment of the present application further provides a device for improving call quality, where the device includes modules and sub-modules included in the modules, and the device can be implemented by a processor in a terminal; of course, the implementation can also be realized through a specific logic circuit; in the implementation process, the Processor may be a Central Processing Unit (CPU), a microprocessor Unit (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like.

Fig. 6 is a schematic structural diagram of an apparatus for improving call quality according to an embodiment of the present application, and as shown in fig. 6, the apparatus 600 includes a first determining module 610 and a sending module 620, where:

the first determining module 610 is configured to determine, in response to a call service requirement, that there is harmonic interference between a Wi-Fi frequency band connected to the terminal and a resident communication frequency band, and that there is at least one candidate cell; wherein the signal quality parameter of the candidate cell is greater than a certain threshold;

the sending module 620 is configured to send a first message to a network device; the first message is used for triggering the network equipment to indicate the terminal to perform cell switching.

In some possible embodiments, the apparatus further includes an establishing module, configured to establish the call service through a circuit domain in the absence of the candidate cell.

In some possible embodiments, the apparatus 600 further comprises a second determining module, an obtaining module, and a third determining module, wherein: the second determining module is configured to determine a Wi-Fi frequency band to which the terminal is connected and a resident communication frequency band when the terminal is connected to a Wi-Fi network; the acquisition module is used for acquiring a mapping relation between a communication frequency band with harmonic interference and a Wi-Fi frequency band; the third determining module is configured to determine, according to the mapping relationship, that harmonic interference exists between the Wi-Fi frequency band connected to the terminal and the resident communication frequency band.

In some possible embodiments, the apparatus 600 further includes a searching module and a fourth determining module, configured to, in a case where there is harmonic interference in the Wi-Fi band and the communication band, start a background search by the terminal to perform measurement on a neighboring cell of the terminal; and the fourth determining module is configured to add, according to the measurement result, the neighboring cell whose signal quality parameter is greater than the specific threshold and whose harmonic interference does not exist with the Wi-Fi frequency band to the preset candidate neighbor cell list.

In some possible embodiments, the sending module 620 is further configured to, in response to a demand for a call service, send a specific measurement report to a network device in a case where harmonic interference exists between a Wi-Fi band to which the terminal is connected and a camped communication band, and at least one candidate cell exists; wherein the specific measurement report is used for triggering the network equipment to send a measurement event to the terminal; correspondingly, the apparatus 600 further comprises a measurement module and a switching module: wherein the measurement module is configured to measure the at least one candidate cell according to the measurement event; the switching module is used for triggering the switching to the target cell according to the measurement result; the signal quality parameter of the target cell is a cell in which the signal quality parameter in the at least one candidate cell is better than that of other candidate cells.

In some possible embodiments, the switching module includes a sending submodule, a receiving submodule, and a switching submodule, wherein: the sending submodule is used for sending a neighbor cell measurement report to the network equipment according to the measurement result; the neighbor cell measurement report is used for triggering the network equipment to indicate the terminal to switch to the target cell; the receiving submodule is used for receiving a switching command sent by the network equipment; and the switching submodule is used for switching to the target cell to carry out the call service according to the switching command.

In some possible embodiments, the apparatus 600 further comprises a construction module and a generation module, wherein: the constructing module is used for constructing the virtual signal quality parameter of the current serving cell; wherein the virtual signal quality parameter is below a particular threshold specified in a measurement event configured by the network device; the generating module is configured to generate the specific measurement report according to the virtual signal quality parameter.

Here, it should be noted that: the above description of the apparatus embodiment is similar to the above description of the terminal side method embodiment, with similar advantageous effects as the method embodiment. For technical details not disclosed in the embodiments of the apparatus of the present application, reference is made to the description of the embodiments of the method of the present application for understanding.

Based on the foregoing embodiment, an apparatus for improving call quality is further provided in the embodiments of the present application, and is applied to a network device, where the apparatus includes modules and sub-modules included in the modules, and may be implemented by a processor in the network device; of course, the implementation can also be realized through a specific logic circuit; in implementation, the processor may be a CPU, MPU, DSP, FPGA, or the like.

Fig. 7 is a schematic structural diagram of an apparatus for improving call quality according to an embodiment of the present application, and as shown in fig. 7, the apparatus 700 includes a first receiving module 710 and a triggering module 720, where:

the first receiving module 710 is configured to receive a first message sent by a terminal; the first message is sent by the terminal in response to the requirement of a call service under the conditions that harmonic interference exists in a Wi-Fi frequency band connected with the terminal and a resident communication frequency band and at least one candidate cell exists; the candidate neighbor cell list is generated by measuring the neighbor cells of the terminal under the condition that harmonic interference exists between the Wi-Fi frequency band connected with the terminal and the resident communication frequency band;

the triggering module 720 is configured to trigger the terminal to perform cell handover according to the first message.

In some possible embodiments, the first message includes a specific measurement report, and the triggering module 720 includes a second sending submodule, a receiving submodule, and a third sending submodule, wherein: the second sending submodule is used for sending a measurement event to the terminal according to the specific measurement report; the receiving submodule is used for receiving a neighbor cell measurement report sent by the terminal; the neighbor cell measurement report is obtained by the terminal measuring the at least one candidate cell according to the measurement event; the third sending submodule is used for sending a switching command to the terminal; and the switching command is used for indicating the terminal to be switched to a target cell to carry out the call service.

Here, it should be noted that: the above description of the embodiment of the apparatus is similar to the above description of the embodiment of the method on the network device side, and has similar beneficial effects to the embodiment of the method. For technical details not disclosed in the embodiments of the apparatus of the present application, reference is made to the description of the embodiments of the method of the present application for understanding.

It should be noted that, in the embodiment of the present application, if the method for improving call quality is implemented in the form of a software functional module and is sold or used as an independent product, the method may also be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes several instructions to enable a terminal (which may be a smartphone with a camera, a tablet computer, or the like) to execute all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the present application are not limited to any specific combination of hardware and software.

Correspondingly, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in any of the above-mentioned embodiments of the method for improving call quality.

Correspondingly, in an embodiment of the present application, a chip is further provided, where the chip includes a programmable logic circuit and/or a program instruction, and when the chip runs, the chip is configured to implement the steps in any of the methods for improving call quality in the foregoing embodiments.

Correspondingly, in an embodiment of the present application, there is also provided a computer program product, which is used to implement the steps in the method for improving call quality in any of the foregoing embodiments when the computer program product is executed by a processor of a terminal.

Based on the same technical concept, the embodiments of the present application provide a terminal for implementing the method for improving call quality described in the above method embodiments. Fig. 8 is a schematic diagram of a hardware entity of a terminal according to an embodiment of the present application, and as shown in fig. 8, the hardware entity of the terminal 800 includes: a processor 801, a receiver 802, a transmitter 803, a memory 804 and a bus 805. It should be noted that fig. 8 is only an exemplary architecture diagram, and the network architecture may include other functional units besides the functional units shown in fig. 8, which is not limited in this embodiment of the present application.

The processor 801 includes one or more processing cores, and the processor 801 executes various functional applications and information processing by running software programs and modules.

The receiver 802 and the transmitter 803 may be implemented as one communication component, which may be a piece of communication chip.

The memory 804 is coupled to the processor 801 by a bus 805.

The memory 804 may be used for storing a computer program for execution by the processor 801 for implementing the steps of the wireless connection re-establishment method performed by the terminal in the above-described method embodiments.

Further, the memory 804 may be implemented by any type or combination of volatile or non-volatile storage devices, including, but not limited to: magnetic or optical disks, EEPROMs (Electrically Erasable Programmable Read-Only memories), EPROMs (Erasable Programmable Read-Only memories), SRAMs (Static Random Access memories), ROMs (Read-Only memories), magnetic memories, flash memories, PROMs (Programmable Read-Only memories).

In an exemplary embodiment, the terminal includes a processor 801 and a memory 804, and the processor is configured to call a computer program stored in the memory 804 to execute the wireless connection reestablishment method in the terminal side method embodiment, and the method includes: responding to the requirement of a call service, and sending a first message to network equipment under the condition that harmonic interference exists in a Wi-Fi frequency band connected with the terminal and a resident communication frequency band and at least one candidate cell exists; the candidate neighbor cell list is generated by measuring the neighbor cells of the terminal under the condition that harmonic interference exists between the Wi-Fi frequency band connected with the terminal and the resident communication frequency band; the first message is used for triggering the network equipment to indicate the terminal to carry out cell switching.

In some embodiments, the terminal further comprises a transmitter 803 for sending a first message to a network device; accordingly, the processor 801 is configured to determine that at least one candidate cell exists in a preset candidate neighbor cell list in response to a call service requirement.

In some embodiments, the processor 801 is further configured to determine, if the terminal is connected to a Wi-Fi network, a Wi-Fi band to which the terminal is connected and a resident communication band; acquiring a mapping relation between a communication frequency band with harmonic interference and a Wi-Fi frequency band; and determining that harmonic interference exists between the Wi-Fi frequency band connected with the terminal and the resident communication frequency band according to the mapping relation.

In some embodiments, the processor 801 is further configured to, in a case that harmonic interference exists in the Wi-Fi band and the communication band, start a background search by the terminal, so as to perform measurement on a neighboring cell of the terminal; and adding the adjacent cell of which the signal quality parameter is greater than a specific threshold value and which has no harmonic interference with the Wi-Fi frequency band into the preset candidate adjacent cell list according to the measurement result.

In some embodiments, the transmitter 803 is further configured to send a specific measurement report to a network device if at least one candidate cell exists in the candidate neighbor list; wherein the specific measurement report is used for triggering the network equipment to send a measurement event to the terminal; correspondingly, the processor 801 is further configured to measure the at least one candidate cell according to the measurement event; triggering the switching to the target cell according to the measuring result; the signal quality parameter of the target cell is a cell in which the signal quality parameter in the at least one candidate cell is better than that of other candidate cells.

In some embodiments, the transmitter 803 is further configured to send a neighbor measurement report to the network device according to the measurement result; the neighbor cell measurement report is used for triggering the network equipment to indicate the terminal to switch to the target cell; the receiver 802 is further configured to receive a handover command sent by the network device; correspondingly, the processor 801 is further configured to switch to the target cell to perform the call service according to the handover command.

In some embodiments, the processor 801 is further configured to construct a virtual signal quality parameter of the current serving cell; wherein the virtual signal quality parameter is below a particular threshold specified in a measurement event configured by the network device; generating the specific measurement report according to the virtual signal quality parameter.

In some embodiments, the processor 801 is further configured to establish the call service through a circuit domain if no candidate cell exists in the candidate neighbor cell list.

Here, it should be noted that: the above description of the storage medium and device embodiments, similar to the above description of the terminal side method embodiments, has similar advantageous effects as the method embodiments. For technical details not disclosed in the embodiments of the storage medium and apparatus of the present application, reference is made to the description of the embodiments of the method of the present application for understanding.

Correspondingly, based on the same technical concept, embodiments of the present application provide a network device for implementing the wireless connection reestablishment method described in the foregoing method embodiments. Fig. 9 is a schematic diagram of a hardware entity of a network device according to an embodiment of the present application, and as shown in fig. 9, the hardware entity of the network device 900 includes: a processor 901, a receiver 902, a transmitter 903, a memory 904, and a bus 905. It should be noted that fig. 9 is only an exemplary architecture diagram, and the network architecture may include other functional modules besides the functional modules shown in fig. 9, which is not limited in this embodiment of the present application.

The processor 901 includes one or more processing cores, and the processor 801 executes various functional applications and information processing by running software programs and modules.

The receiver 902 and the transmitter 903 may be implemented as one communication component, which may be a communication chip.

The memory 904 is coupled to the processor 901 via a bus 905.

The memory 904 may be used for storing a computer program, which the processor 901 is configured to execute in order to implement the steps of the wireless connection re-establishment method performed by the network device in the above-described method embodiments.

Further, the memory 904 may be implemented by any type or combination of volatile or non-volatile storage devices, including, but not limited to: magnetic or optical disk, EEPROM, EPROM, SRAM, ROM, magnetic memory, flash memory, and PROM.

In an exemplary embodiment, the network device includes a processor 901 and a memory 904, where the processor is configured to invoke a computer program stored in the memory 904 to execute a wireless connection reestablishment method in the network device side method embodiment, including: receiving a first message sent by a terminal; the first message is sent by the terminal in response to the requirement of a call service under the conditions that harmonic interference exists in a Wi-Fi frequency band connected with the terminal and a resident communication frequency band and at least one candidate cell exists; the candidate neighbor cell list is generated by measuring the neighbor cells of the terminal under the condition that harmonic interference exists between the Wi-Fi frequency band connected with the terminal and the resident communication frequency band; and triggering the terminal to carry out cell switching according to the first message.

In some embodiments, the receiver 902 is further configured to receive a specific measurement report sent by the terminal; the specific measurement report is generated when the terminal responds to the requirement of a call service and a preset candidate neighbor list meets specific conditions; the candidate neighbor cell list is generated by measuring the neighbor cells of the terminal under the condition that harmonic interference exists between a Wi-Fi frequency band and a frequency band where the terminal resides.

In some embodiments, the transmitter 903 is further configured to send a measurement event to the terminal according to the specific measurement report; the receiver 902 is further configured to receive a neighbor cell measurement report sent by the terminal; the neighbor cell measurement report is obtained by the terminal measuring the at least one candidate cell according to the measurement event; the transmitter 903 is further configured to send a handover command to the terminal; and the switching command is used for indicating the terminal to be switched to a target cell to carry out the call service.

Here, it should be noted that: the above description of the storage medium and device embodiments is similar to the above description of the network device side method embodiments, with similar beneficial effects as the method embodiments. For technical details not disclosed in the embodiments of the storage medium and apparatus of the present application, reference is made to the description of the embodiments of the method of the present application for understanding.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the sub-modules is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple sub-modules or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or sub-modules may be electrical, mechanical or other.

The sub-modules described as the separate components may or may not be physically separate, and the components displayed as the sub-modules may or may not be physical sub-modules; the network sub-modules can be located in one place or distributed on a plurality of network sub-modules; some or all of the sub-modules can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present application.

In addition, all functional modules in the embodiments of the present application may be integrated into one processing sub-module, or each sub-module may be separately used as one sub-module, or two or more sub-modules may be integrated into one sub-module; the integrated sub-modules can be realized in a hardware mode, and can also be realized in a mode of hardware and software functional modules.

Alternatively, the integrated sub-modules described above in the present application may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as independent products. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing an automatic test line of a device to perform all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.

The methods disclosed in the several method embodiments provided in the present application may be combined arbitrarily without conflict to obtain new method embodiments.

The features disclosed in the several method or apparatus embodiments provided in the present application may be combined arbitrarily, without conflict, to arrive at new method embodiments or apparatus embodiments.

The above description is only for the embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for improving call quality is applied to a terminal, and the method comprises the following steps:

2. The method of claim 1, wherein the method further comprises:

and under the condition that the candidate cell does not exist, establishing the call service through a circuit domain.

3. The method of claim 1, wherein the method further comprises:

under the condition that the terminal is connected to a Wi-Fi network, determining a Wi-Fi frequency band connected with the terminal and a resident communication frequency band;

acquiring a mapping relation between a communication frequency band with harmonic interference and a Wi-Fi frequency band;

and determining that harmonic interference exists between the Wi-Fi frequency band connected with the terminal and the resident communication frequency band according to the mapping relation.

4. The method of claim 1, wherein the method further comprises:

under the condition that harmonic interference exists between the Wi-Fi frequency band and the communication frequency band, the terminal starts background search to measure adjacent cells of the terminal;

and according to the measurement result, taking the adjacent cell with the signal quality parameter larger than a specific threshold value and without harmonic interference with the Wi-Fi frequency band as the candidate cell.

5. The method of any of claims 1 to 4, wherein the first message comprises a specific measurement report, and wherein the sending the first message to the network device comprises:

sending the particular measurement report to the network device; wherein the specific measurement report is used for triggering the network equipment to send a measurement event to the terminal;

the method further comprises the following steps:

measuring the at least one candidate cell according to the measurement event;

triggering the switching to the target cell according to the measuring result; the signal quality parameter of the target cell is a cell in which the signal quality parameter in the at least one candidate cell is better than that of other candidate cells.

6. The method of claim 5, wherein triggering handover to a target cell based on the measurement results comprises:

sending a neighbor cell measurement report to the network equipment according to the measurement result; the neighbor cell measurement report is used for triggering the network equipment to indicate the terminal to switch to the target cell;

receiving a switching command sent by the network equipment;

and switching to the target cell to carry out the call service according to the switching command.

7. The method of claim 5, wherein the method further comprises:

constructing a virtual signal quality parameter of a current serving cell; wherein the virtual signal quality parameter is below a particular threshold specified in a measurement event configured by the network device;

generating the specific measurement report according to the virtual signal quality parameter.

8. A method for improving call quality is applied to a network device, and the method comprises the following steps:

receiving a first message sent by a terminal; the first message is sent by the terminal in response to the requirement of a call service under the conditions that harmonic interference exists in a Wi-Fi frequency band connected with the terminal and a resident communication frequency band and at least one candidate cell exists;

9. The method of claim 8, wherein the first message comprises a specific measurement report, and wherein triggering the terminal for cell handover according to the first message comprises:

sending a measurement event to the terminal according to the specific measurement report;

receiving a neighbor cell measurement report sent by the terminal; the neighbor cell measurement report is obtained by the terminal measuring the at least one candidate cell according to the measurement event;

sending a switching command to the terminal according to the neighbor cell measurement report; and the switching command is used for indicating the terminal to be switched to a target cell to carry out the call service.

10. The device for improving the call quality is applied to a terminal and comprises a first determining module and a sending module, wherein:

the first determining module is configured to determine, in response to a demand for a call service, that harmonic interference exists between a Wi-Fi frequency band connected to the terminal and a resident communication frequency band, and that at least one candidate cell exists; wherein the signal quality parameter of the candidate cell is greater than a certain threshold; (ii) a

11. The device for improving the call quality is applied to network equipment and comprises a first receiving module and a triggering module, wherein:

the first receiving module is configured to send the candidate neighbor cell list when at least one candidate cell exists in the candidate neighbor cell list; the candidate neighbor cell list is generated by measuring the neighbor cells of the terminal under the condition that harmonic interference exists between the Wi-Fi frequency band connected with the terminal and the resident communication frequency band;

12. A terminal comprising a memory and a processor, the memory storing a computer program operable on the processor, wherein the processor when executing the program performs the steps of the method of any one of claims 1 to 7.

13. A network device comprising a memory and a processor, the memory storing a computer program operable on the processor, wherein the processor implements the steps of the method of claim 8 or 9 when executing the program.

14. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7; alternatively, the computer program realizes the steps of the method as claimed in claim 8 or 9 when executed by a processor.