CN110677860A - Network switching method and device for voice call - Google Patents
Network switching method and device for voice call Download PDFInfo
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- CN110677860A CN110677860A CN201810717870.9A CN201810717870A CN110677860A CN 110677860 A CN110677860 A CN 110677860A CN 201810717870 A CN201810717870 A CN 201810717870A CN 110677860 A CN110677860 A CN 110677860A
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- H04W24/02—Arrangements for optimising operational condition
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- H04W36/00—Hand-off or reselection arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The embodiment of the invention provides a network switching method and a device for voice call, comprising the following steps: when the base station establishes a voice call with a terminal, the base station detects whether a first measurement report reported by the terminal is received; if yes, judging whether the first measurement report meets a preset condition; if yes, generating first configuration information aiming at the measurement report; sending the configuration information to the terminal; the terminal is preset with second configuration information, and is used for updating the second configuration information by adopting the first configuration information, generating updated configuration information and generating a second measurement report based on the updated configuration information; receiving a second measurement report reported by the terminal; the second measurement report comprises a network identification of a target network; and switching the terminal to the target network according to the second measurement report. The embodiment of the invention reduces the packet loss rate of the voice user in the weak environment and ensures the conversation quality of the voice user.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a network switching method and a network switching apparatus for a voice call.
Background
The transmission of wireless signals in LTE (Long Term Evolution) is an electromagnetic field energy, including strong fields and weak fields. The strong field is an area with high field intensity energy, generally the center of a cell, and an area close to a base station and an antenna; the weak field is an area with weak field intensity energy, and is generally a cell edge, or a coverage blind area of a base station, and the like.
In the prior art, in a weak field generally, a base station configures pilot frequency measurement for a terminal first, and configures inter-system measurement for the terminal again if the terminal cannot perform pilot frequency handover, so that a user cannot perform pilot frequency handover basically when configuring inter-system measurement.
When the base station allocates the different-frequency and different-system switching measurement to the terminal, the terminal preferentially reports the different-frequency measurement report, so that the different-system measurement report is delayed to report and the switching time to the different-system eSRVCC is delayed, the packet loss rate of the voice user under the weak field condition is improved, the call quality of the voice user is reduced, and the perception of the voice user is influenced.
Disclosure of Invention
In view of the foregoing problems, embodiments of the present invention provide a network switching method for a voice call and a network switching apparatus for a voice call.
In order to solve the above problem, an embodiment of the present invention discloses a network handover method for a voice call, where the method is applied to a base station and includes:
when the base station establishes a voice call with a terminal, the base station detects whether a first measurement report reported by the terminal is received;
if yes, judging whether the first measurement report meets a preset condition;
if yes, generating first configuration information aiming at the measurement report;
sending the configuration information to the terminal; the terminal is preset with second configuration information, and is used for updating the second configuration information by adopting the first configuration information, generating updated configuration information and generating a second measurement report based on the updated configuration information;
receiving a second measurement report reported by the terminal; the second measurement report comprises a network identification of a target network;
and switching the terminal to the target network according to the second measurement report.
Preferably, the step of determining whether the first measurement report satisfies a preset condition includes:
judging whether the first measurement report simultaneously comprises a pilot frequency measurement report and a pilot system measurement report;
if so, judging that the first measurement report meets a preset condition;
if not, returning to the step of detecting whether the first measurement report reported by the terminal is received.
Preferably, the base station is provided with a switch for deleting the pilot frequency measurement configuration information;
the step of generating first configuration information for the measurement report comprises:
detecting the working state of the pilot frequency measurement configuration information deleting switch; the working state comprises an opening state or a closing state;
if the working state is the starting state, generating third configuration information, and determining the third configuration information as first configuration information; the third configuration information comprises the different frequency measurement configuration information deletion and the different system measurement configuration information addition;
if the working state is the closing state, generating fourth configuration information, and determining the fourth configuration information as the first configuration information; the fourth configuration information includes add inter-system measurement configuration information.
Preferably, the step of switching the terminal to the target network according to the second measurement report includes:
if the second measurement report comprises an inter-frequency measurement report and an inter-system measurement report, returning to the step of generating first configuration information aiming at the measurement report;
if the second measurement report comprises a different system measurement report, switching the terminal to a target network corresponding to the different system; the heterogeneous system comprises a 2G network.
The embodiment of the invention discloses a network switching method of voice call, which is applied to a terminal, wherein second configuration information is preset in the terminal and comprises pilot frequency measurement configuration information and inter-system measurement configuration information; the method comprises the following steps:
when the terminal establishes a voice call with a base station, detecting the strength of signal field;
when the intensity of the signal field strength reaches a preset condition, sending a first measurement report to the base station; the base station is used for judging whether the first measurement report meets a preset condition, and if so, generating first configuration information aiming at the measurement report;
receiving the first configuration information;
updating the second configuration information by adopting the first configuration information to generate updated configuration information;
generating a second measurement report based on the updated configuration information; the second measurement report comprises a network identification of a target network;
sending the second measurement report to the base station; and the base station is used for switching the terminal to the target network according to the network identifier.
Preferably, the first configuration information includes deleting inter-frequency measurement configuration information and adding inter-system measurement configuration information, or adding inter-system measurement configuration information;
the step of updating the second configuration information with the first configuration information and generating updated configuration information includes:
if the first configuration information comprises pilot frequency measurement configuration information deletion and inter-system measurement configuration information addition, the pilot frequency measurement configuration information in the second configuration information is deleted, and the inter-system measurement configuration information is added to the second configuration information to generate fifth configuration information;
and if the configuration information comprises the measurement configuration information of the added different systems, adding the measurement configuration information of the different systems to the default configuration information to generate sixth configuration information.
Preferably, the step of generating a second measurement report based on the updated configuration information includes:
if the updated configuration information is updated fifth configuration information, performing inter-system measurement according to the updated fifth configuration information to generate an inter-system measurement report, and taking the inter-system measurement report as a second measurement report;
and if the updated configuration information is the updated sixth configuration information, performing pilot frequency measurement and inter-system measurement according to the updated sixth configuration information to generate a pilot frequency measurement report and an inter-system measurement report, and taking the pilot frequency measurement report and the inter-system measurement report as a second measurement report.
Correspondingly, the embodiment of the invention discloses a network switching device for voice call, which is applied to a base station and comprises the following components:
a measurement report detection module, configured to detect, when the base station establishes a voice call with a terminal, whether the base station receives a first measurement report reported by the terminal;
the judging module is used for judging whether the first measurement report meets a preset condition or not;
a first generating module, configured to generate first configuration information for the measurement report;
the first sending module is used for sending the configuration information to the terminal; the terminal is preset with second configuration information, and is used for updating the second configuration information by adopting the first configuration information, generating updated configuration information and generating a second measurement report based on the updated configuration information;
the first receiving module is used for receiving a second measurement report reported by the terminal; the second measurement report comprises a network identification of a target network;
and the switching module is used for switching the terminal to the target network according to the second measurement report.
Preferably, the judging module includes:
a measurement report detection sub-module, configured to determine whether the first measurement report includes an inter-frequency measurement report and an inter-system measurement report at the same time;
and the judging submodule is used for judging that the first measurement report meets a preset condition or switching to a detection module.
Preferably, the base station is provided with a switch for deleting the pilot frequency measurement configuration information;
the first generation module comprises:
the working state detection submodule is used for detecting the working state of the pilot frequency measurement configuration information deleting switch; the working state comprises an opening state or a closing state;
a third generating submodule, configured to generate third configuration information if the operating state is an on state, and determine the third configuration information as the first configuration information; the third configuration information comprises the different frequency measurement configuration information deletion and the different system measurement configuration information addition;
a fourth generating submodule, configured to generate fourth configuration information if the operating state is the off state, and determine the fourth configuration information as the first configuration information; the fourth configuration information includes add inter-system measurement configuration information.
Preferably, the switching module includes:
a first switching sub-module, configured to switch to a first generation module if the second measurement report includes an inter-frequency measurement report and an inter-system measurement report;
a second switching sub-module, configured to switch the terminal to a target network corresponding to a different system if the second measurement report includes a different system measurement report; the heterogeneous system comprises a 2G network.
Correspondingly, the embodiment of the invention also discloses a network switching device for voice calling, which is applied to a terminal, wherein second configuration information is preset in the terminal and comprises pilot frequency measurement configuration information and inter-system measurement configuration information; the device comprises:
the field intensity detection module is used for detecting the field intensity of the signal when the terminal establishes a voice call with the base station;
the second sending module is used for sending a first measurement report to the base station when the strength of the signal field reaches a preset condition; the base station is used for judging whether the first measurement report meets a preset condition, and if so, generating first configuration information aiming at the measurement report;
a second receiving module, configured to receive the first configuration information;
the updating module is used for updating the second configuration information by adopting the first configuration information and generating updated configuration information;
a second generating module, configured to generate a second measurement report based on the updated configuration information; the second measurement report comprises a network identification of a target network;
a second sending module, configured to send the second measurement report to the base station; and the base station is used for switching the terminal to the target network according to the network identifier.
Preferably, the first configuration information includes deleting inter-frequency measurement configuration information and adding inter-system measurement configuration information, or adding inter-system measurement configuration information;
the update module includes:
a fifth generating sub-module, configured to delete the inter-frequency measurement configuration information in the second configuration information and add the inter-system measurement configuration information to the second configuration information if the first configuration information includes the deleted inter-frequency measurement configuration information and the added inter-system measurement configuration information, and generate fifth configuration information;
a sixth generating sub-module, configured to add the inter-system measurement configuration information to the default configuration information if the configuration information includes added inter-system measurement configuration information, and generate sixth configuration information.
Preferably, the second generating module includes:
a first determining submodule, configured to perform inter-system measurement according to the updated fifth configuration information if the updated configuration information is the updated fifth configuration information, generate an inter-system measurement report, and use the inter-system measurement report as a second measurement report;
and a second determining submodule, configured to perform pilot frequency measurement and inter-system measurement according to the updated sixth configuration information if the updated configuration information is the updated sixth configuration information, generate a pilot frequency measurement report and an inter-system measurement report, and use the pilot frequency measurement report and the inter-system measurement report as a second measurement report.
The embodiment of the invention has the following advantages:
in the embodiment of the invention, when the base station and the terminal establish a voice call, the base station firstly detects whether a first measurement report reported by the terminal is received, if so, judges whether the first measurement report meets a preset condition, if so, generates first configuration information aiming at the measurement report, and then sends the configuration information to the terminal; the terminal is preset with second configuration information and used for updating the second configuration information by adopting the first configuration information, generating updated configuration information and generating a second measurement report based on the updated configuration information; then, receiving a second measurement report reported by the terminal; and finally, switching the terminal to the target network according to the second measurement report. Therefore, in the voice calling process, when the terminal is in a weak field environment, the base station can change the measurement configuration information of the terminal in time, and the time for the terminal to perform network measurement is reduced, so that the overall time for the base station to perform network switching on the terminal is shortened, the packet loss rate of the voice user in the weak field environment is reduced, and the communication quality of the voice user is ensured.
Drawings
Fig. 1 is a flowchart illustrating a first step of a network handover method for a voice call according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a second step of a network handover method for a voice call according to an embodiment of the present invention;
FIG. 3 is a block diagram illustrating a network switching apparatus for voice call according to an embodiment of the present invention;
fig. 4 is a block diagram of a network switching apparatus for voice call according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, a first flowchart illustrating steps of a first embodiment of a network handover method for a voice call according to the present invention is shown, where the method is applied to a base station, and specifically includes the following steps:
when the base station establishes the load with the terminal, whether the voice service QCI1 exists is judged, and if yes, the voice service QCI1 indicates that the base station and the terminal establish the voice service. At this time, the terminal may be in a 4G network.
Qci (qos Class identifier) is a scale value used to measure the packet forwarding behavior (e.g. packet loss rate, packet delay budget) of a specific SDF (service data flow) and is applied to both GBR and Non-GBR bearers for specifying the control bearer level packet forwarding scheme (e.g. scheduling weight, admission threshold, queue management threshold, link layer protocol configuration, etc.) defined in the access node, which are pre-configured by the operator into the access network node.
Depending on the QoS, bearers (Bearer) can be divided into two main categories: GBR (guaranteed Bit rate) and Non-GBR.
By GBR, it is meant that the bit rate required by the bearer is allocated by the network "permanently" and constantly, and the corresponding bit rate is maintained even in the presence of a shortage of network resources. The MBR (maximum Bit rate) parameter defines the upper rate limit that GBR Bear can reach under the condition of sufficient resources. The value of MBR must be greater than or equal to the value of GBR. In contrast, Non-GBR refers to the requirement that traffic (or bearers) should be subjected to a reduced rate in the case of network congestion, and can be established for a long time since Non-GBR bearers do not need to occupy fixed network resources. Whereas GBR bearers are typically established only when needed.
The use of QCI over an interface instead of transmitting a set of QoS parameters is mainly to reduce the amount of control signalling data transmission over the interface and to make it easier to inter-communicate between different devices/systems in a multi-vendor interconnection environment and in a roaming environment, whereby a certain amount of processing behavior (similar to Per-Hop behavior specified in DiffServ) needs to be specified.
The following is a description of different QCIs in LTE:
GBR
QCI＝1:Example Services:Conversational voicemscbsc
QCI＝2:Conversational Video(Live streaming)
QCI＝3:Real Time Gaming
QCI＝4:Non-conversational voice(buffered streaming)
Non-GBR
QCI＝5:IMS signaling
QCI＝6:Video(buffered streaming),TCP-based(e.g.www,email,chat,ftp,p2pfile sharing,progressive video,etc)
QCI＝7:Voice,Video(live streaming),interactive gaming
QCI＝8:Video(buffered streaming),TCP-based(e.g.www,email,chat,ftp,p2pfile sharing,progressive video,etc)
QCI＝9:Video(buffered streaming),TCP-based(e.g.www,email,chat,ftp,p2pfile sharing,progressive video,etc)；
in the embodiment of the present invention, it is sufficient to determine whether "QCI 1: sample Services: conversation mscbsc" exists.
In practical applications, when the terminal registers at the base station, the base station may send a default measurement configuration list to the terminal, where the list includes one or more measurement events, specifies which measurements the terminal performs under which conditions, and generates a measurement report to the terminal. For example, when the terminal is in a weak field environment, the inter-frequency measurement is performed, or the inter-system measurement is performed, and then the inter-frequency a2 measurement report or the inter-system a2 measurement report is generated correspondingly, whereas when the terminal is in a strong field environment, the inter-frequency measurement or the inter-system measurement is not required. Therefore, when the base station and the terminal are in voice service, if the a2 measurement report is received, it indicates that the terminal is in a weak environment.
The transmission of wireless signals in LTE (Long Term Evolution) is electromagnetic field energy, which includes strong fields and weak fields. The strong field is an area with high field intensity energy, generally the center of a cell, and an area close to a base station and an antenna; the weak field is an area with weak field intensity energy, and is generally a cell edge, or a coverage blind area of a base station, and the like.
In LTE, there are mainly the following measurement events: event A1, Event A2, Event A3, Event A4, Event A5, Event B1, and Event B2.
Event a1(Serving belows better than threshold): the quality of the signal of the service cell is higher than a certain threshold, and when the event meeting the condition is reported, the eNodeB stops the measurement of the different frequency/different system; similar to 2F events within UMTS;
event a2(Serving belongings word threshold): when the signal quality of the serving cell is lower than a certain threshold and an event meeting the condition is reported, the eNodeB starts the measurement of the pilot frequency/the pilot system; similar to 2D events within UMTS;
event A3 (neighbor books offset better than serving): the quality of the same-frequency adjacent cell is higher than that of the service cell, and when an event meeting the condition is reported, the source eNodeB starts a same-frequency switching request;
event A4 (neighbor books between the threshold): the quality of the pilot frequency adjacent cell is higher than a certain threshold, and when an event meeting the condition is reported, the source eNodeB starts a pilot frequency switching request;
event A5(Serving belows word threshold1and neighbor brand threshold 2): indicating that the quality of the service cell is lower than a certain threshold and the quality of the adjacent cell is higher than a certain threshold; similar to 2B events in UMTS;
event B1(Inter RAT neighbor tables greater than threshold): the quality of the adjacent cell of the different system is higher than a certain threshold, and when the condition event is reported, the source eNodeB starts a different system switching request; similar to the 3C event in UMTS;
event B2(Serving belows word threshold1and inter RAT neighbor tables threshold 2): indicating that the quality of the serving cell is below a certain threshold and the quality of the neighbor cells of the inter-system is above a certain threshold, similar to the 3A event for inter-system handover in UMTS.
in this embodiment of the present invention, the step of determining whether the first measurement report satisfies a preset condition includes:
judging whether the first measurement report simultaneously comprises a pilot frequency measurement report and a pilot system measurement report;
if so, judging that the first measurement report meets a preset condition;
if not, returning to the step of detecting whether the first measurement report reported by the terminal is received.
Specifically, when the terminal is in a weak field environment, the base station usually receives the pilot frequency a2 measurement report sent by the terminal first and then receives the inter-system a2 measurement report, but there may be a case where only the pilot frequency a2 measurement report is received and the inter-system a2 measurement report is not received, or a case where the inter-system a2 measurement report is received first and then the pilot frequency a2 measurement report is received, but the probability of occurrence of the latter two cases is very low.
In practical applications, after receiving the inter-frequency a2 measurement report, the base station does not process the inter-frequency a2 measurement report, but waits until receiving the inter-system a2 measurement report. Therefore, in the embodiment of the present invention, after receiving the pilot frequency a2 measurement report and the inter-system a2 measurement report that are successively sent by the terminal, the base station may perform subsequent processing, otherwise, continue to detect whether the pilot frequency a2 measurement report and the inter-system a2 measurement report that are reported by the terminal are received.
in the prior art, after receiving a pilot frequency a2 measurement report and a heterogeneous system a2 measurement report reported by a terminal, a terminal performs network handover with the same system and different frequencies according to the pilot frequency a2 measurement report, and if the pilot frequency handover is unsuccessful, the heterogeneous system handover is performed, but the pilot frequency handover takes too long and the handover fails, which results in unsuccessful heterogeneous system handover.
In a preferred embodiment of the present invention, the base station is provided with a delete inter-frequency measurement configuration information switch for this case. Specifically, the base station is provided with a switch for deleting the pilot frequency measurement configuration information, and when the switch is turned on, the terminal can be instructed to perform the inter-system measurement without performing the pilot frequency measurement.
The step of generating first configuration information for the measurement report comprises:
detecting the working state of the pilot frequency measurement configuration information deleting switch; the working state comprises an opening state or a closing state;
if the working state is the starting state, generating third configuration information, and determining the third configuration information as first configuration information; the third configuration information comprises the different frequency measurement configuration information deletion and the different system measurement configuration information addition;
if the working state is the closing state, generating fourth configuration information, and determining the fourth configuration information as the first configuration information; the fourth configuration information includes add inter-system measurement configuration information.
When the pilot frequency measurement configuration information deleting switch of the base station is in an on state, the base station generates third configuration information, wherein the third configuration information comprises pilot frequency measurement configuration information deleting and inter-system measurement configuration information adding, the pilot frequency measurement configuration information deleting is used for indicating the terminal not to perform pilot frequency measurement, and the inter-system measurement configuration information adding is used for indicating the terminal to perform inter-system measurement again.
When the pilot frequency measurement configuration information deleting switch of the base station is in a closed state, the base station generates fourth configuration information, wherein the fourth configuration information comprises inter-system measurement configuration information. The terminal is not instructed to perform inter-frequency measurement, so that the terminal performs the inter-frequency measurement and the inter-system measurement again.
It should be noted that the first configuration information, the third configuration information, and the fourth configuration information in the embodiment of the present invention are only distinguished for convenience of description, and in practical applications, if the pilot frequency measurement configuration information switch is deleted to be in the on state, the third configuration information is the first configuration information, and if the pilot frequency measurement configuration information switch is deleted to be in the off state, the fourth configuration information is the first configuration information. In addition, the inter-system measurement may be an eSRVCC (enhanced single Radio Voice Call Continuity) Voice measurement.
and 106, switching the terminal to the target network according to the second measurement report.
In a preferred embodiment of the present invention, the step of switching the terminal to the target network according to the second measurement report includes:
if the second measurement report comprises an inter-frequency measurement report and an inter-system measurement report, returning to the step of generating first configuration information aiming at the measurement report;
if the second measurement report comprises a different system measurement report, switching the terminal to a target network corresponding to the different system; the heterogeneous system comprises a 2G network.
Specifically, after receiving a second measurement report reported by the terminal, the base station may identify the second measurement report, and if the second measurement report includes a pilot frequency measurement report and a different system measurement report, it indicates that the terminal failed to perform pilot frequency measurement, so that the base station continues to generate the first configuration information; if the second measurement report comprises the inter-system measurement report, the inter-frequency measurement is successfully performed by the terminal, so that the network identification of the target network for the inter-system measurement performed by the terminal is obtained from the second configuration information, and then the terminal is switched to the target network, wherein the target network may be a 2G network.
In the embodiment of the invention, after the voice service is finished, the base station can recover the pilot frequency measurement configuration information of the terminal. In this way, it is possible to avoid that too many terminals occupy 2G network resources.
It should be noted that the embodiment of the present invention can be used in the phase of establishing a voice call, and can also be used in the process of voice call. For example, a user initiates a voice call in the process of moving, and when initiating a voice call, the user is in a strong-field environment, but in the process of talking, the user gradually moves to a weak-field environment, and at this time, the terminal reports an a2 measurement report, which is also applicable to the embodiment of the present invention, but in this case, after receiving an a2 measurement report reported by the terminal, the base station needs to detect whether the QCI1 exists, and if so, the base station may continue to execute steps 102 to 106, and the specific flow may be:
1) when the base station receives a first measurement report reported by the terminal, detecting whether the QCI1 exists or not;
2) if yes, judging whether the first measurement report meets a preset condition;
3) if yes, generating first configuration information aiming at the measurement report;
it should be noted here that, since the base station receives the first measurement report during the voice call, the base station may have received the measurement report of the heterogeneous system a2 before. In practical applications, if the base station receives the measurement report of the heterogeneous system a2 and generates configuration information for the measurement report, the base station records the measurement report. Therefore, in this case, the base station may first check whether there is a relevant record, if there is a record, it indicates that the measurement report of the heterogeneous system a2 reported by the terminal is received, and if not, it continues to the next step.
4) Sending the configuration information to the terminal; the terminal is preset with second configuration information, and is used for updating the second configuration information by adopting the first configuration information, generating updated configuration information and generating a second measurement report based on the updated configuration information;
5) receiving a second measurement report reported by the terminal; the second measurement report comprises a network identification of a target network;
6) and switching the terminal to the target network according to the second measurement report.
In the embodiment of the invention, when the base station and the terminal establish a voice call, the base station firstly detects whether a first measurement report reported by the terminal is received, if so, judges whether the first measurement report meets a preset condition, if so, generates first configuration information aiming at the measurement report, and then sends the configuration information to the terminal; the terminal is preset with second configuration information and used for updating the second configuration information by adopting the first configuration information, generating updated configuration information and generating a second measurement report based on the updated configuration information; then, receiving a second measurement report reported by the terminal; and finally, switching the terminal to the target network according to the second measurement report. Therefore, in the voice calling process, when the terminal is in a weak field environment, the base station can change the measurement configuration information of the terminal in time, and the time for the terminal to perform network measurement is reduced, so that the overall time for the base station to perform network switching on the terminal is shortened, the packet loss rate of the voice user in the weak field environment is reduced, and the communication quality of the voice user is ensured.
Referring to fig. 2, a second step flowchart of an embodiment of a network handover method for a voice call according to the present invention is shown, where the method is applied to a terminal, and second configuration information is preset in the terminal, where the second configuration information includes inter-frequency measurement configuration information and inter-system measurement configuration information; the method specifically comprises the following steps:
the emission of wireless signals in LTE (Long Term Evolution) is electromagnetic field energy, so-called strong field, which is an area with high field intensity, generally a cell center, and an area close to a base station and an antenna; the weak field is an area with weak field strength, and is generally a cell edge, or a coverage blind area of a base station, and the like. When the terminal and the base station establish the voice call, the terminal can detect the signal field intensity so as to judge whether the terminal is in a strong field or a weak field.
RSRP (Reference Signal Receiving Power), which is one of the key parameters that can represent the wireless Signal strength in an LTE network and the physical layer measurement requirement, is the average value of the received Signal Power on all REs (resource elements) that carry Reference signals within a certain symbol, and the unit of RSRP is: dBm. The metrics are as follows:
in the embodiment of the invention, when the terminal detects that the strength of the signal field is lower than the RSRP threshold value, an a2 measurement event can be triggered, and then an a2 measurement report is generated, including an inter-frequency a2 measurement report and an inter-system a2 measurement report.
It should be noted that the threshold value of the signal field strength of the inter-system measurement event is slightly lower than the threshold value of the signal field strength of the inter-frequency measurement event, so in practical application, the inter-frequency measurement event is triggered first, and then the inter-system measurement event is triggered.
in the embodiment of the present invention, the first configuration information includes that inter-frequency measurement configuration information is deleted and inter-system measurement configuration information is added, or inter-system measurement configuration information is added;
the step of updating the second configuration information with the first configuration information and generating updated configuration information includes:
if the first configuration information comprises pilot frequency measurement configuration information deletion and inter-system measurement configuration information addition, the pilot frequency measurement configuration information in the second configuration information is deleted, the inter-system measurement configuration information is added to the second configuration information, and fourth configuration information is generated;
and if the configuration information comprises the measurement configuration information of the added different systems, adding the measurement configuration information of the different systems to the default configuration information to generate fifth configuration information.
Specifically, when the terminal registers at the base station, the base station sends a default measurement configuration list to the terminal, where the list includes one or more measurement events, which specify under which conditions the terminal performs what measurements, and generates a measurement report to the terminal.
And when the terminal receives the first configuration information, updating the second configuration information according to the first configuration information. It should be noted that the second configuration information, the fourth configuration information, and the fifth configuration information in the embodiment of the present invention are only for convenience of description, and if the configuration information includes inter-system measurement configuration information, the fourth configuration information is updated second configuration information; if the configuration information includes the add inter-system measurement configuration information, the fifth configuration information is the updated second configuration information.
in this embodiment of the present invention, the step of generating the second measurement report based on the updated configuration information includes:
if the updated configuration information is updated fifth configuration information, performing inter-system measurement according to the updated fifth configuration information to generate an inter-system measurement report, and taking the inter-system measurement report as a second measurement report;
and if the updated configuration information is the updated sixth configuration information, performing pilot frequency measurement and inter-system measurement according to the updated sixth configuration information to generate a pilot frequency measurement report and an inter-system measurement report, and taking the pilot frequency measurement report and the inter-system measurement report as a second measurement report.
Specifically, for different updated second configuration information, the terminal may perform different measurement events and generate corresponding measurement reports. It should be noted that, if the second measurement report includes a measurement report of a different system, the second measurement report may include a network identifier of the different system, for example, a network identifier of a 2G network; if the second measurement report includes an inter-frequency measurement report and an inter-system measurement report, the second measurement report may include a network identifier of the inter-frequency, for example, a network identifier of other frequency networks in the 4G network. That is, the role of the network identifier is to let the base station know what to do with respect to the second measurement report.
In the embodiment of the invention, after the voice service is finished, the base station can recover the pilot frequency measurement configuration information of the terminal. In this way, it is possible to avoid that too many terminals occupy 2G network resources.
In the embodiment of the present invention, second configuration information is preset in the terminal, and the second configuration information includes inter-frequency measurement configuration information and inter-system measurement configuration information. Specifically, when the terminal establishes a voice call with a base station, the field intensity of a signal is detected first, and when the field intensity of the signal reaches a preset condition, a first measurement report is sent to the base station; the base station is used for judging whether the first measurement report meets a preset condition, and if so, generating first configuration information aiming at the measurement report; then, receiving the first configuration information, updating the second configuration information by adopting the first configuration information, generating updated configuration information, and generating a second measurement report based on the updated configuration information; the second measurement report comprises a network identification of a target network; finally, the second measurement report is sent to the base station; and the base station is used for switching the terminal to the target network according to the network identifier. Therefore, in the voice calling process, when the terminal is in a weak field environment, the base station can change the measurement configuration information of the terminal in time, and the time for the terminal to perform network measurement is reduced, so that the overall time for the base station to perform network switching on the terminal is shortened, the packet loss rate of the voice user in the weak field environment is reduced, and the communication quality of the voice user is ensured.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Referring to fig. 3, a block diagram of a network handover device for a voice call according to an embodiment of the present invention is shown, where the device is applied to a base station, and specifically includes the following modules:
a measurement report detection module 301, configured to detect, when the base station establishes a voice call with a terminal, whether the base station receives a first measurement report reported by the terminal;
a determining module 302, configured to determine whether the first measurement report satisfies a preset condition;
a first generating module 303, configured to generate first configuration information for the measurement report;
a first sending module 304, configured to send the configuration information to the terminal; the terminal is preset with second configuration information, and is used for updating the second configuration information by adopting the first configuration information, generating updated configuration information and generating a second measurement report based on the updated configuration information;
a first receiving module 305, configured to receive a second measurement report reported by the terminal; the second measurement report comprises a network identification of a target network;
a switching module 306, configured to switch the terminal to the target network according to the second measurement report.
In a preferred embodiment of the present invention, the determining module includes:
a measurement report detection sub-module, configured to determine whether the first measurement report includes an inter-frequency measurement report and an inter-system measurement report at the same time;
and the judging submodule is used for judging that the first measurement report meets a preset condition or switching to a detection module.
In a preferred embodiment of the present invention, the base station is provided with a switch for deleting pilot frequency measurement configuration information;
the first generation module comprises:
the working state detection submodule is used for detecting the working state of the pilot frequency measurement configuration information deleting switch; the working state comprises an opening state or a closing state;
a third generating submodule, configured to generate third configuration information if the operating state is an on state, and determine the third configuration information as the first configuration information; the third configuration information comprises the different frequency measurement configuration information deletion and the different system measurement configuration information addition;
a fourth generating submodule, configured to generate fourth configuration information if the operating state is the off state, and determine the fourth configuration information as the first configuration information; the fourth configuration information includes add inter-system measurement configuration information.
In a preferred embodiment of the present invention, the switching module includes:
a first switching sub-module, configured to switch to a first generation module if the second measurement report includes an inter-frequency measurement report and an inter-system measurement report;
a second switching sub-module, configured to switch the terminal to a target network corresponding to a different system if the second measurement report includes a different system measurement report; the heterogeneous system comprises a 2G network.
Referring to fig. 4, a block diagram of a network switching apparatus for a voice call according to an embodiment of the present invention is shown, where the apparatus is applied to a terminal, and second configuration information is preset in the terminal, where the second configuration information includes inter-frequency measurement configuration information and inter-system measurement configuration information; the method specifically comprises the following modules:
a field strength detection module 401, configured to detect a signal field strength when the terminal establishes a voice call with a base station;
a second sending module 402, configured to send a first measurement report to the base station when the strength of the signal field reaches a preset condition; the base station is used for judging whether the first measurement report meets a preset condition, and if so, generating first configuration information aiming at the measurement report;
a second receiving module 403, configured to receive the first configuration information;
an updating module 404, configured to update the second configuration information with the first configuration information, and generate updated configuration information;
a second generating module 405, configured to generate a second measurement report based on the updated configuration information; the second measurement report comprises a network identification of a target network;
a second sending module, configured to send the second measurement report to the base station; and the base station is used for switching the terminal to the target network according to the network identifier.
In a preferred embodiment of the present invention, the first configuration information includes a delete inter-frequency measurement configuration information and an add inter-system measurement configuration information, or an add inter-system measurement configuration information;
the update module includes:
a fifth generating sub-module, configured to delete the inter-frequency measurement configuration information in the second configuration information and add the inter-system measurement configuration information to the second configuration information if the first configuration information includes the deleted inter-frequency measurement configuration information and the added inter-system measurement configuration information, and generate fifth configuration information;
a sixth generating sub-module, configured to add the inter-system measurement configuration information to the default configuration information if the configuration information includes added inter-system measurement configuration information, and generate sixth configuration information.
In a preferred embodiment of the present invention, the second generating module includes:
a first determining submodule, configured to perform inter-system measurement according to the updated fifth configuration information if the updated configuration information is the updated fifth configuration information, generate an inter-system measurement report, and use the inter-system measurement report as a second measurement report;
and a second determining submodule, configured to perform pilot frequency measurement and inter-system measurement according to the updated sixth configuration information if the updated configuration information is the updated sixth configuration information, generate a pilot frequency measurement report and an inter-system measurement report, and use the pilot frequency measurement report and the inter-system measurement report as a second measurement report.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal 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 terminal. 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 terminal that comprises the element.
The network switching method for voice call and the network switching device for voice call provided by the present invention are introduced in detail, and a specific example is applied in the text to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (14)
1. A network switching method for voice call, which is applied to a base station, includes:
when the base station establishes a voice call with a terminal, the base station detects whether a first measurement report reported by the terminal is received;
if yes, judging whether the first measurement report meets a preset condition;
if yes, generating first configuration information aiming at the measurement report;
sending the configuration information to the terminal; the terminal is preset with second configuration information, and is used for updating the second configuration information by adopting the first configuration information, generating updated configuration information and generating a second measurement report based on the updated configuration information;
receiving a second measurement report reported by the terminal; the second measurement report comprises a network identification of a target network;
and switching the terminal to the target network according to the second measurement report.
2. The method of claim 1, wherein the step of determining whether the first measurement report satisfies a predetermined condition comprises:
judging whether the first measurement report simultaneously comprises a pilot frequency measurement report and a pilot system measurement report;
if so, judging that the first measurement report meets a preset condition;
if not, returning to the step of detecting whether the first measurement report reported by the terminal is received.
3. The method according to claim 1 or 2, wherein the base station is provided with a delete inter-frequency measurement configuration information switch;
the step of generating first configuration information for the measurement report comprises:
detecting the working state of the pilot frequency measurement configuration information deleting switch; the working state comprises an opening state or a closing state;
if the working state is the starting state, generating third configuration information, and determining the third configuration information as first configuration information; the third configuration information comprises the different frequency measurement configuration information deletion and the different system measurement configuration information addition;
if the working state is the closing state, generating fourth configuration information, and determining the fourth configuration information as the first configuration information; the fourth configuration information includes add inter-system measurement configuration information.
4. The method according to claim 3, wherein the step of handing over the terminal to the target network according to the second measurement report comprises:
if the second measurement report comprises an inter-frequency measurement report and an inter-system measurement report, returning to the step of generating first configuration information aiming at the measurement report;
if the second measurement report comprises a different system measurement report, switching the terminal to a target network corresponding to the different system; the heterogeneous system comprises a 2G network.
5. A network switching method of voice call is characterized in that the method is applied to a terminal, second configuration information is preset in the terminal, and the second configuration information comprises pilot frequency measurement configuration information and inter-system measurement configuration information; the method comprises the following steps:
when the terminal establishes a voice call with a base station, detecting the strength of signal field;
when the intensity of the signal field strength reaches a preset condition, sending a first measurement report to the base station; the base station is used for judging whether the first measurement report meets a preset condition, and if so, generating first configuration information aiming at the measurement report;
receiving the first configuration information;
updating the second configuration information by adopting the first configuration information to generate updated configuration information;
generating a second measurement report based on the updated configuration information; the second measurement report comprises a network identification of a target network;
sending the second measurement report to the base station; and the base station is used for switching the terminal to the target network according to the network identifier.
6. The method of claim 5, wherein the first configuration information comprises deleting inter-frequency measurement configuration information and adding inter-system measurement configuration information, or adding inter-system measurement configuration information;
the step of updating the second configuration information with the first configuration information and generating updated configuration information includes:
if the first configuration information comprises pilot frequency measurement configuration information deletion and inter-system measurement configuration information addition, the pilot frequency measurement configuration information in the second configuration information is deleted, and the inter-system measurement configuration information is added to the second configuration information to generate fifth configuration information;
and if the configuration information comprises the measurement configuration information of the added different systems, adding the measurement configuration information of the different systems to the default configuration information to generate sixth configuration information.
7. The method of claim 6, wherein generating a second measurement report based on the updated configuration information comprises:
if the updated configuration information is updated fifth configuration information, performing inter-system measurement according to the updated fifth configuration information to generate an inter-system measurement report, and taking the inter-system measurement report as a second measurement report;
and if the updated configuration information is the updated sixth configuration information, performing pilot frequency measurement and inter-system measurement according to the updated sixth configuration information to generate a pilot frequency measurement report and an inter-system measurement report, and taking the pilot frequency measurement report and the inter-system measurement report as a second measurement report.
8. A network switching apparatus for a voice call, the apparatus being applied to a base station, comprising:
a measurement report detection module, configured to detect, when the base station establishes a voice call with a terminal, whether the base station receives a first measurement report reported by the terminal;
the judging module is used for judging whether the first measurement report meets a preset condition or not;
a first generating module, configured to generate first configuration information for the measurement report;
the first sending module is used for sending the configuration information to the terminal; the terminal is preset with second configuration information, and is used for updating the second configuration information by adopting the first configuration information, generating updated configuration information and generating a second measurement report based on the updated configuration information;
the first receiving module is used for receiving a second measurement report reported by the terminal; the second measurement report comprises a network identification of a target network;
and the switching module is used for switching the terminal to the target network according to the second measurement report.
9. The apparatus of claim 8, wherein the determining module comprises:
a measurement report detection sub-module, configured to determine whether the first measurement report includes an inter-frequency measurement report and an inter-system measurement report at the same time;
and the judging submodule is used for judging that the first measurement report meets a preset condition or switching to a detection module.
10. The apparatus according to claim 8 or 9, wherein the base station is provided with a delete inter-frequency measurement configuration information switch;
the first generation module comprises:
the working state detection submodule is used for detecting the working state of the pilot frequency measurement configuration information deleting switch; the working state comprises an opening state or a closing state;
a third generating submodule, configured to generate third configuration information if the operating state is an on state, and determine the third configuration information as the first configuration information; the third configuration information comprises the different frequency measurement configuration information deletion and the different system measurement configuration information addition;
a fourth generating submodule, configured to generate fourth configuration information if the operating state is the off state, and determine the fourth configuration information as the first configuration information; the fourth configuration information includes add inter-system measurement configuration information.
11. The apparatus of claim 10, wherein the switching module comprises:
a first switching sub-module, configured to switch to a first generation module if the second measurement report includes an inter-frequency measurement report and an inter-system measurement report;
a second switching sub-module, configured to switch the terminal to a target network corresponding to a different system if the second measurement report includes a different system measurement report; the heterogeneous system comprises a 2G network.
12. A network switching device for voice call is characterized in that the device is applied to a terminal, second configuration information is preset in the terminal, and the second configuration information comprises pilot frequency measurement configuration information and inter-system measurement configuration information; the device comprises:
the field intensity detection module is used for detecting the field intensity of the signal when the terminal establishes a voice call with the base station;
the second sending module is used for sending a first measurement report to the base station when the strength of the signal field reaches a preset condition; the base station is used for judging whether the first measurement report meets a preset condition, and if so, generating first configuration information aiming at the measurement report;
a second receiving module, configured to receive the first configuration information;
the updating module is used for updating the second configuration information by adopting the first configuration information and generating updated configuration information;
a second generating module, configured to generate a second measurement report based on the updated configuration information; the second measurement report comprises a network identification of a target network;
a second sending module, configured to send the second measurement report to the base station; and the base station is used for switching the terminal to the target network according to the network identifier.
13. The apparatus of claim 12, wherein the first configuration information comprises deleting inter-frequency measurement configuration information and adding inter-system measurement configuration information, or adding inter-system measurement configuration information;
the update module includes:
a fifth generating sub-module, configured to delete the inter-frequency measurement configuration information in the second configuration information and add the inter-system measurement configuration information to the second configuration information if the first configuration information includes the deleted inter-frequency measurement configuration information and the added inter-system measurement configuration information, and generate fifth configuration information;
a sixth generating sub-module, configured to add the inter-system measurement configuration information to the default configuration information if the configuration information includes added inter-system measurement configuration information, and generate sixth configuration information.
14. The apparatus of claim 13, wherein the second generating module comprises:
a first determining submodule, configured to perform inter-system measurement according to the updated fifth configuration information if the updated configuration information is the updated fifth configuration information, generate an inter-system measurement report, and use the inter-system measurement report as a second measurement report;
and a second determining submodule, configured to perform pilot frequency measurement and inter-system measurement according to the updated sixth configuration information if the updated configuration information is the updated sixth configuration information, generate a pilot frequency measurement report and an inter-system measurement report, and use the pilot frequency measurement report and the inter-system measurement report as a second measurement report.
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