CN110572855A - different-system switching method and device for Voice over Voice service - Google Patents

different-system switching method and device for Voice over Voice service Download PDF

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Publication number
CN110572855A
CN110572855A CN201810576340.7A CN201810576340A CN110572855A CN 110572855 A CN110572855 A CN 110572855A CN 201810576340 A CN201810576340 A CN 201810576340A CN 110572855 A CN110572855 A CN 110572855A
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China
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fallback
cell
frequency point
csfb
gsm
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CN201810576340.7A
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CN110572855B (en
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张镇驿
郭尧
郭华
王斯一
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China Mobile Communications Group Co Ltd
China Mobile Group Jilin Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Group Jilin Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Abstract

the invention discloses a method and a device for switching different systems of a Voice over Voice service, wherein the method comprises the following steps: determining the priority probability of each fallback frequency point according to the fallback times and the fallback success times of each CSFB fallback frequency point of the serving cell in a preset time period; according to the mapping relation between the CSFB fallback frequency points configured in each preset cell and the BCCH frequency points of the adjacent cells, when the fallback frequency points of the serving cell are determined to have the fallback frequency points corresponding to the BCCH frequency points of the GSM adjacent cells of the serving cell, the switching priority probability of the GSM adjacent cells is determined to be the priority probability of the corresponding fallback frequency points; when the RSRP value in the voice service is lower than a first preset threshold, measuring an adjacent region with the switching priority probability meeting a set value; and the service cell is switched to the neighbor cell meeting the preset condition in the measured neighbor cells, so that the success rate of inter-system switching and the continuity of the Voice over Voice call are improved.

Description

different-system switching method and device for Voice over Voice service
Technical Field
The invention relates to the technical field of wireless communication, in particular to a method and a device for switching different systems of a Voice over Voice service.
background
with the rapid development of 4G (the 4th Generation mobile communication technology, fourth Generation mobile communication technology) networks, voice (voice over lte) services are gradually accepted by a large number of users, and in recent years, the voice services have the capability of offloading a part of the voice traffic of a conventional GSM (Global System for mobile communication), and the distribution of voice users becomes more and more extensive.
Although the 4G Network has already been built for many periods, according to the Network coverage of the existing Network, the seamless coverage of the Voice service cannot be realized, in order to ensure the Continuity of the Voice service, a handover between different systems is required, a TS 23.216R 9 protocol proposed by 3GPP (3rd Generation Partnership Project) specifies a SRVCC (Single Radio Voice Call Continuity) scheme, when a user moves to a region with weak LTE signals but with good coverage of GERAN/UTRAN (GSM EDGE Radio Access Network, GSM EDGE Radio Access Network or Evolved Universal Terrestrial Radio Access Network) Network signals during a Voice Call using an LTE (Long Term Evolution) Network, in order to ensure the Continuity of the Voice Call (Call Continuity, VCC), the session routing LTE needs to be handed over to GERAN/UTRAN. Because no terminal capable of simultaneously attaching to and receiving and transmitting data in the LTE and GERAN/UTRAN networks exists at present, service continuity between LTE and 2G/3G is based on a Single Radio (dual mode Single standby) mode. In the existing network, according to the SRVCC scheme proposed by 3GPP, the china mobile adopts the scheme of switching from LTE to GERAN, i.e. from LTE network to GSM network.
The existing SRVCC scheme specifically comprises the following steps:
step one, measurement triggering: through the A2 event trigger measurement, when the RSRP (Reference Signal Receiving Power) of the serving cell is smaller than the A2 threshold in the Volte call, the measurement for the GSM neighbor cell is started.
step two, SRVCC switching judgment: and (4) judging SRVCC switching through a B2 event, and when the RSRP of the measuring service cell is smaller than a B2 threshold 1 and the RSRP of the GSM adjacent cell is larger than a B2 threshold 2, judging that the inter-system switching is successfully carried out.
however, in the SRVCC decision process based on the B2 event, only whether the RSRP of the GSM neighboring cell is higher than a certain threshold and whether the RSRP of the serving cell is lower than a certain threshold are considered, and influences of factors such as a problem that the RSRP meets the condition but cannot be switched normally when the GSM cell is congested, a problem that the RSRP meets the condition but the target cell cannot be switched normally when the GSM cell has interference, and the like are not considered, so that the inter-system handover decision reliability based on the RSRP is insufficient, and the handover success rate cannot be guaranteed. In addition, the existing network has wide distribution of Voice users, the requirement of mobility on voice continuity is high, the GSM neighbor cell configuration needs to be complete, the neighbor cells are configured as many as possible to avoid the problem of call drop caused by incapability of switching due to the absence of suitable neighbor cells, in the GSM neighbor cell measurement process, once more neighbor cells are configured, switching judgment is carried out after different neighbor cells are measured, the overall time delay is long, the judgment cannot be carried out in time easily caused under a fast fading scene, the switching triggering is late, the switching success rate is low, and therefore the Voice continuity is influenced.
disclosure of Invention
in order to solve the problems that the existing SRVCC scheme needs longer time delay for switching judgment on each neighbor cell of a service cell to influence the continuity of a Voice over Voice (Volte) call, and the inter-system switching judgment reliability is insufficient and the switching success rate is low only based on RSRP, the embodiment of the invention provides an inter-system switching method and device for a Voice over Voice service.
in a first aspect, an embodiment of the present invention provides a method for switching between different systems of a voice service, where the method includes:
Determining the priority probability of each CSFB fallback frequency point according to the fallback times and the fallback success times of each CSFB fallback frequency point configured by a service cell in a preset time period;
according to the mapping relation between the preset CSFB fallback frequency points configured by each cell and the broadcast control channel BCCH frequency points of the adjacent cells, when the CSFB fallback frequency points of the service cell are determined to have CSFB fallback frequency points corresponding to the BCCH frequency points of the GSM adjacent cells of the service cell, the switching priority probability of the GSM adjacent cells is determined to be the priority probability of the corresponding CSFB fallback frequency points;
when the RSRP value in the voice service is lower than a first preset threshold, measuring a GSM (global system for mobile communications) adjacent cell of which the switching priority probability meets a set value;
and switching the service cell to the GSM adjacent cell meeting preset conditions in the measured GSM adjacent cells.
The method for switching different systems of voice services over Volte provided by the embodiment of the present invention determines the switching priority probability of the GSM neighbor of the serving cell by using the statistic data of the Fallback telephone traffic of the CSFB (Circuit Switched Fallback) as the reference basis, specifically, the base station determines the priority probability of each CSFB Fallback frequency point according to the Fallback frequency point and the Fallback success frequency point of each CSFB Fallback frequency point configured in the serving cell within a preset time period, determines the switching priority probability of the GSM neighbor as the corresponding CSFB Fallback probability when determining that the CSFB Fallback frequency point of the serving cell has the mapping relationship between the CSFB Fallback frequency point configured in each preset cell and the Broadcast Control Channel (BCCH) frequency point of the neighbor thereof, or determines the switching priority probability of the GSM neighbor as the CSFB Fallback probability of the corresponding GSM neighbor, or determines the CSFB Fallback probability of the GSM neighbor successfully mapped by the priority as the CSFB Fallback probability of the corresponding CSFB frequency point, furthermore, when the RSRP value in the voice service is lower than a first preset threshold, the GSM adjacent cell with the switching priority probability meeting the set value is measured, the service cell is switched to the GSM adjacent cell meeting the preset condition in the measured GSM adjacent cell, and the switching from the LTE to the 2G different systems is completed.
Preferably, the switching the serving cell to the GSM neighboring cell that satisfies the preset condition among the measured GSM neighboring cells specifically includes:
and switching the serving cell to the GSM neighboring cell with the RSRP value higher than a second preset threshold and the highest RSRP value in the measured GSM neighboring cells.
preferably, the priority probability of each CSFB fallback frequency point is determined by the following formula:
Pn＝Ps,n×Ss,n,n＝1,2,......,N
wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
PnRepresenting the priority probability of the CSFB fallback frequency point n;
Ps,nrepresenting the fallback success rate of the CSFB fallback frequency point n;
Ss,nAnd the fallback success ratio of the CSFB fallback frequency point n is shown.
preferably, the fallback success rate of each CSFB fallback frequency point is determined by the following formula:
wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
Ps,nRepresenting the fallback success rate of the CSFB fallback frequency point n;
SnRepresenting the number of successful fallback times of the CSFB fallback frequency point n in the preset time period;
RnAnd representing the number of the fallback of the CSFB fallback frequency point n in the preset time period.
Preferably, the ratio of successful fallback of each CSFB fallback frequency point is determined by the following formula:
Wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
Ss,nRepresenting the successful falling ratio of the CSFB falling frequency point n;
SnRepresenting the number of the fall-back success times of the frequency point n in the preset time period;
and indicating the total number of successful times of the CSFB fallback at the frequency point 1,2, … …, N within the preset time period.
optionally, after determining that there is a CSFB fallback frequency point corresponding to a BCCH frequency point of a GSM neighboring cell of the serving cell in the CSFB fallback frequency points of the serving cell, determining the switching priority probability of the GSM neighboring cell as the priority probability of the corresponding CSFB fallback frequency point, the method further includes:
and marking CSFB fallback frequency points which do not correspond to BCCH frequency points of all GSM neighboring cells of the serving cell in the CSFB fallback frequency points of the serving cell.
in the embodiment of the invention, CSFB fallback frequency points which do not correspond to BCCH frequency points of all GSM adjacent cells of a serving cell in CSFB fallback frequency points of the serving cell are marked, namely when the CSFB fallback frequency points of the serving cell cannot be mapped to the BCCH frequency points of any GSM adjacent cell, the adjacent cells with frequency points are judged to be missed to be matched, and the CSFB fallback frequency points which are failed to be mapped are marked so as to provide data reference for adding the missed adjacent cells and find the missed adjacent cells in time to perfect the adjacent cell configuration.
Optionally, the method further comprises:
if the RSRP value of each GSM adjacent region with the switching priority probability meeting the set value is lower than the second preset threshold, measuring other GSM adjacent regions with the switching priority probability not meeting the set value; and are
And switching the serving cell to the GSM neighboring cell with the RSRP value higher than a second preset threshold and the highest RSRP value in the other GSM neighboring cells.
In a second aspect, an embodiment of the present invention provides an inter-system handover device for a voice service, including:
The first determining unit is used for determining the priority probability of each CSFB fallback frequency point according to the fallback times and the fallback success times of each CSFB fallback frequency point configured by the serving cell within the preset time period;
a second determining unit, configured to determine, according to a mapping relationship between a preset CSFB fallback frequency point configured in each cell and a broadcast control channel BCCH frequency point of an adjacent cell thereof, when it is determined that a CSFB fallback frequency point corresponding to a BCCH frequency point of a GSM adjacent cell of the serving cell exists in CSFB fallback frequency points of the serving cell, a switching priority probability of the GSM adjacent cell is determined as a priority probability of a corresponding CSFB fallback frequency point;
the measuring unit is used for measuring the GSM adjacent region with the switching priority probability meeting the set value when the RSRP value in the Voice over Voice service is determined to be lower than a first preset threshold;
and the switching unit is used for switching the service cell to the GSM neighbor cell meeting the preset conditions in the measured GSM neighbor cells.
Preferably, the switching unit is specifically configured to switch the serving cell to the GSM neighboring cell whose RSRP value in the measured GSM neighboring cells is higher than a second preset threshold and whose RSRP value is highest.
preferably, the first determining unit is specifically configured to determine the priority probability of each CSFB fallback frequency point by the following formula:
Pn＝Ps,n×Ss,n,n＝1,2,......,N
Wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
PnRepresenting the priority probability of the CSFB fallback frequency point n;
Ps,nRepresenting the fallback success rate of the CSFB fallback frequency point n;
Ss,nAnd the fallback success ratio of the CSFB fallback frequency point n is shown.
preferably, the first determining unit is specifically configured to determine the fallback success rate of each CSFB fallback frequency point by the following formula:
wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
Ps,nrepresenting the fallback success rate of the CSFB fallback frequency point n;
Snrepresenting the number of successful fallback times of the CSFB fallback frequency point n in the preset time period;
RnAnd representing the number of the fallback of the CSFB fallback frequency point n in the preset time period.
preferably, the first determining unit is specifically configured to determine a fallback success ratio of each CSFB fallback frequency point by the following formula:
wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
Ss,nRepresenting the successful falling ratio of the CSFB falling frequency point n;
Snrepresenting the number of the fall-back success times of the frequency point n in the preset time period;
and indicating the total number of successful times of the CSFB fallback at the frequency point 1,2, … …, N within the preset time period.
Optionally, the apparatus further comprises:
and the marking unit is used for marking the CSFB fallback frequency points which do not correspond to the BCCH frequency points of all the GSM adjacent cells of the service cell in the CSFB fallback frequency points of the service cell after determining that the switching priority probability of the GSM adjacent cells is the priority probability of the corresponding CSFB fallback frequency points when determining that the CSFB fallback frequency points corresponding to the BCCH frequency points of the GSM adjacent cells of the service cell exist in the CSFB fallback frequency points of the service cell.
preferably, the measurement unit is further configured to measure, if the RSRP value of each GSM neighboring cell whose handover priority probability satisfies the set value is lower than the second preset threshold, other GSM neighboring cells whose handover priority probability does not satisfy the set value; and switching the service cell to the GSM adjacent cell with the RSRP value higher than the second preset threshold and the highest RSRP value in the other GSM adjacent cells.
the technical effect of the inter-system switching device for the voice service according to the second aspect of the present invention may refer to the technical effect of the first aspect or each implementation manner of the first aspect, and is not described herein again.
in a third aspect, an embodiment of the present invention provides a communication device, which includes a memory, a processor, and a computer program that is stored in the memory and is executable on the processor, where the processor implements the inter-system handover method for a voice service according to the present invention when executing the computer program.
in a fourth aspect, an embodiment of the present invention 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 inter-system handover method for voice service over voice according to the present invention.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
drawings
the accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
Fig. 1 is a schematic view of an application scenario of a different system switching method for a voice service in an embodiment of the present invention;
fig. 2 is a schematic flow chart of an implementation of a method for switching between different systems of a voice service according to an embodiment of the present invention;
Fig. 3 is a schematic structural diagram of a different system switching device for a voice service according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
Detailed Description
The invention provides a method and a device for switching different systems of a Voice over Voice service, aiming at solving the problems that the continuity of a Voice over Voice call is influenced by longer time delay of switching judgment of each adjacent cell of a service cell in the existing SRVCC scheme, and the switching success rate is low because the reliability of the switching judgment of the different systems based on RSRP is insufficient.
the implementation principle of the different-system switching method of the Voice over Voice service provided by the embodiment of the invention is as follows: the method for switching different systems of the voice service of Volte provided by the embodiment of the invention determines the switching priority probability of the GSM adjacent cell of the serving cell by using the CSFB fallback telephone traffic statistical data as the reference, specifically, the base station determines the priority probability of each CSFB fallback frequency point according to the fallback times and the fallback success times of each CSFB fallback frequency point configured in the serving cell within the preset time period, determines the switching priority probability of the GSM adjacent cell as the priority probability of the corresponding CSFB fallback when determining that the CSFB fallback frequency point corresponding to the BCCH frequency point of the GSM adjacent cell of the serving cell exists in the CSFB fallback frequency points of the serving cell according to the preset mapping relation between the CSFB fallback frequency points configured in each cell and the broadcast control channel BCCH frequency points of the adjacent cell, i.e. determines the switching priority probability of the GSM adjacent cell successfully mapped as the priority probability of the corresponding CSFB fallback, furthermore, when the RSRP value in the voice service is lower than a first preset threshold, the GSM adjacent cell with the switching priority probability meeting the set value is measured, the service cell is switched to the GSM adjacent cell meeting the preset condition in the measured GSM adjacent cell, and the switching from the LTE to the 2G different systems is completed.
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings of the specification, it being understood that the preferred embodiments described herein are merely for illustrating and explaining the present invention, and are not intended to limit the present invention, and that the embodiments and features of the embodiments in the present invention may be combined with each other without conflict.
fig. 1 is a schematic view of an application scenario of a method for switching between different systems of a voice service according to an embodiment of the present invention. As shown in fig. 1, the system is composed of a base station 10, a serving cell 11, and a plurality of neighboring cells 12 of the serving cell 11, in this embodiment of the present invention, the serving cell 11 may be an LTE system and support a voice service, the neighboring cells may be a GSM system, the serving cell 11 and the neighboring cells 12 may be covered by the same base station 10, or may be covered by different base stations 10, which is not limited in this embodiment of the present invention. The embodiment of the present invention is described by taking an example that the serving cell 11 and the neighboring cell 12 thereof are covered by the same base station 10. The base station 10 configures a plurality of CSFB fallback frequency points for the serving cell 11, so that a CSFB user performs a voice service in the LTE system. The base station 10 counts the number of fallback times and the number of fallback success times of each CSFB fallback frequency point configured by the serving cell within a preset time period, and determines the priority probability of each CSFB fallback frequency point in the serving cell within the preset time period according to the number of fallback times and the number of fallback success times of each CSFB fallback frequency point, where the preset time period may be a time period before inter-system handover needs to be performed, that is, a time period before the inter-system handover needs to be performed from the serving cell 11 to the neighboring cell 12. Further, according to the mapping relationship between the preset CSFB fallback frequency points configured by each cell and the broadcast control channel BCCH frequency points of its neighboring cell, when it is determined that there is a CSFB fallback frequency point corresponding to the BCCH frequency point of the neighboring cell 12 of the serving cell in the CSFB fallback frequency points of the serving cell 11, the switching priority probability of the neighboring cell 12 is determined as the priority probability of the corresponding CSFB fallback frequency point, that is, the switching priority probability of the neighboring cell 12 that is mapped successfully is determined as the priority probability of the corresponding CSFB fallback frequency point, preferably, a neighboring cell switching priority probability sequence can be generated for each neighboring cell 12 according to a preset sequence, and preferably, the preset sequence can be a sequence in which the switching priority probability of the neighboring cell 12 is larger than smaller, that is, that the neighboring cell switching priority probability sequence is arranged according to a sequence in which the switching priority probability of the neighboring cell 12 is smaller than the larger, so as to generate a neighboring cell. Further, when inter-system handover is required, the system is handed over according to the handover priority probability of the neighbor cell 12 and based on the RSRP value of the neighbor cell 12, specifically, when it is determined that the RSRP value in the voice service is lower than a first preset threshold, that is, the RSRP of the serving cell 11 meets an event of a2, where the first preset threshold is an a2 threshold, the neighbor cell 12 with the handover priority probability meeting a set value is measured, further, the serving cell 11 is handed over to the neighbor cell 12 meeting a preset condition in the measured neighbor cell 12, and handover from LTE to 2G inter-system is completed. Preferably, the measurement of the neighboring cells 12 of the serving cell 11 with the priority probability from high to low in the neighboring cell switching priority probability sequence may be started, and the serving cell 11 is switched to the neighboring cell 12 with the highest RSRP value and higher than the second preset threshold among the neighboring cells 12 of the preset number of the measurement, so as to complete the inter-system switching.
In the following, referring to fig. 2, a method for inter-system handover of a voice service according to an exemplary embodiment of the present invention is described with reference to an application scenario of fig. 1. It should be noted that the above application scenarios are only presented to facilitate understanding of the spirit and principles of the present invention, and the embodiments of the present invention are not limited in any way herein. Rather, embodiments of the present invention may be applied to any scenario where applicable.
As shown in fig. 2, which is a schematic view of an implementation flow of a method for switching between different systems of a voice service according to an embodiment of the present invention, the method may include the following steps:
And S21, determining the priority probability of each CSFB fallback frequency point according to the fallback times and the fallback success times of each CSFB fallback frequency point configured by the serving cell in the preset time period.
In specific implementation, a base station counts the number of fallback times and the number of fallback success times of each CSFB fallback frequency point configured by a serving cell in a preset time period in advance, and determines the priority probability of each CSFB fallback frequency point in the serving cell in the preset time period according to the number of fallback times and the number of success fallback times of each CSFB fallback frequency point, where the preset time period may be a time period before the inter-system handover needs to be performed, that is, a time period before the serving cell needs to be handed over to its GSM neighboring cell, for example, one hour and one day.
specifically, the priority probability of each CSFB fallback frequency point may be determined by the following formula:
Pn＝Ps,n×Ss,n,n＝1,2,......,N
wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
PnRepresenting the priority probability of the CSFB fallback frequency point n;
Ps,nRepresenting the fallback success rate of the CSFB fallback frequency point n;
Ss,nAnd the fallback success ratio of the CSFB fallback frequency point n is shown.
in specific implementation, the fallback success rate of each CSFB fallback frequency point can be calculated by the following formula:
wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
Ps,nRepresenting the fallback success rate of the CSFB fallback frequency point n;
Snrepresenting the number of successful fallback times of the CSFB fallback frequency point n in the preset time period;
RnAnd representing the number of the fallback of the CSFB fallback frequency point n in the preset time period.
in specific implementation, the ratio of successful fallback of each CSFB fallback frequency point can be calculated by the following formula:
Wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
Ss,nRepresenting the successful falling ratio of the CSFB falling frequency point n;
Snrepresenting the number of the fall-back success times of the frequency point n in the preset time period;
And indicating the total number of successful times of the CSFB fallback at the frequency point 1,2, … …, N within the preset time period.
S22, according to the preset mapping relationship between the CSFB fallback frequency points configured by each cell and the broadcast control channel BCCH frequency points of the adjacent cells, when determining that CSFB fallback frequency points corresponding to the BCCH frequency points of the GSM adjacent cells of the serving cell exist in the CSFB fallback frequency points of the serving cell, determining the switching priority probability of the GSM adjacent cells as the priority probability of the corresponding CSFB fallback frequency points.
in specific implementation, according to a mapping relationship between a preset CSFB fallback frequency point configured in each cell and a broadcast control channel BCCH frequency point of an adjacent cell, when determining that a CSFB fallback frequency point corresponding to the BCCH frequency point of a GSM adjacent cell of a serving cell exists in CSFB fallback frequency points of the serving cell, a base station determines a switching priority probability of the GSM adjacent cell as a priority probability of the corresponding CSFB fallback frequency point, that is, determines a switching priority probability of the GSM adjacent cell that is mapped successfully as a priority probability of the corresponding CSFB fallback frequency point. Preferably, the neighboring cell switching priority probability sequence may be generated by mapping each successfully mapped GSM neighboring cell according to a preset sequence, and preferably, the preset sequence may be a sequence from a large switching priority probability of the GSM neighboring cells to a small switching priority probability, that is, the neighboring cell switching priority probability sequence is generated by arranging the GSM neighboring cells according to the sequence from the large switching priority probability of the GSM neighboring cells to the small switching priority probability.
furthermore, the CSFB fallback frequency points which do not correspond to the BCCH frequency points of all GSM neighboring cells of the serving cell in the CSFB fallback frequency points of the serving cell are marked, namely when the CSFB fallback frequency points of the serving cell cannot be mapped to the BCCH frequency points of any GSM neighboring cell, the neighboring cells with the frequency points are judged to be missed, the CSFB fallback frequency points which are failed to be mapped are marked, so that data reference is provided for adding the missed neighboring cells, the missed neighboring cells are found in time, and the configuration of the neighboring cells is completed.
for example, assuming that 10 CSFB fallback frequency points are set in a serving cell, and there are 10 GSM neighboring cells of the serving cell, mapping the 10 CSFB fallback frequency points to the BCCH frequency points of the GSM neighboring cells of the serving cell according to a mapping relationship between the CSFB fallback frequency points configured in each preset cell and the BCCH frequency points of the neighboring cells, assuming that the CSFB fallback frequency points 1 to 8 map to the GSM neighboring cells 1 to 8 of the serving cell successfully, and mapping with the GSM neighboring cells 9 and 10 fails, determining that the neighboring cells of the CSFB fallback frequency points 9 and 10 are missed, marking and storing the CSFB fallback frequency points 9 and 10, generating neighboring cell switching priority probability sequences for the GSM neighboring cells 1 to 8 that map successfully according to a preset sequence, preferably, the preset sequence may be a sequence from high to low for neighboring cell switching priority, and assuming that the GSM neighboring cells 1 to 8 have switching priority probabilities: 0.2, 0.3, 0.6, 0.4, 0.5, 0.9, 0.8, 0.7, then the neighbor handover precedence probability sequence is: { neighbor 6, neighbor 7, neighbor 8, neighbor 3, neighbor 5, neighbor 4, neighbor 2, neighbor 1 }.
Preferably, the missed distribution frequency points counted in each preset time period can be recorded and accumulated, and the missed distribution frequency points can be used for data reference of missed distribution of the frequency points and subsequent neighbor cell addition according to the missed distribution condition of the frequency points.
S23, when the RSRP value in the Voice over Voice service is determined to be lower than a first preset threshold, measuring the GSM adjacent cell of which the switching priority probability meets a set value.
In specific implementation, when a user in a serving cell performs a voice service, and an RSRP value of the serving cell is lower than a first preset threshold, that is, lower than an a2 threshold, GSM neighbor measurement of the serving cell is started, and a GSM neighbor having a handover priority probability that meets a set value can be selected for priority measurement, where the set value can be set according to an empirical value. For example, in the example in step S22, assuming that the preset number is 5, the base station selects the first 5 neighboring cells in the neighboring cell switching priority probability sequence { neighboring cell 6, neighboring cell 7, neighboring cell 8, neighboring cell 3, neighboring cell 5, neighboring cell 4, neighboring cell 2, neighboring cell 1 }: and measuring the adjacent regions 6, 7, 8, 3 and 5.
S24, switching the service cell to the GSM adjacent cell meeting the preset conditions in the measured GSM adjacent cells.
in specific implementation, the base station switches the serving cell to the measured GSM neighboring cell whose RSRP value is higher than the second preset threshold and whose RSRP value is the highest. Specifically, the measured GSM neighbor cell higher than the second preset threshold, that is, the GSM neighbor cell satisfying the B2 event and having the highest RSRP value, is subjected to the B2 event report, thereby completing SRVCC handover decision based on the priority sequence, performing handover, and handover the serving cell to the reported GSM neighbor cell, so as to complete the inter-system handover procedure. Assuming that, in the example of step S23, the measured GSM neighboring cells 6, 7, 8, 3, and 5 satisfy the B2 event and the highest RSRP value is the neighboring cell 8, the neighboring cell 8 reports the B2 event, and after performing the handover decision, the serving cell is handed over to the neighboring cell 8.
preferably, when the RSRP value of each GSM neighboring cell whose handover priority probability satisfies the set value is lower than the second preset threshold, the other GSM neighboring cells whose handover priority probability does not satisfy the set value are measured, and the serving cell is switched to the GSM neighboring cell whose RSRP value is higher than the second preset threshold and whose RSRP value is highest among the other GSM neighboring cells.
The method for switching different systems of the voice service of Volte provided by the embodiment of the invention determines the switching priority probability of the GSM adjacent cell of the serving cell by using the CSFB fallback telephone traffic statistical data as the reference, specifically, the base station determines the priority probability of each CSFB fallback frequency point according to the fallback times and the fallback success times of each CSFB fallback frequency point configured in the serving cell within the preset time period, determines the switching priority probability of the GSM adjacent cell as the priority probability of the corresponding CSFB fallback when determining that the CSFB fallback frequency point corresponding to the BCCH frequency point of the GSM adjacent cell of the serving cell exists in the CSFB fallback frequency points of the serving cell according to the preset mapping relation between the CSFB fallback frequency points configured in each cell and the broadcast control channel BCCH frequency points of the adjacent cell, i.e. determines the switching priority probability of the GSM adjacent cell successfully mapped as the priority probability of the corresponding CSFB fallback, furthermore, when the RSRP value in the voice service is lower than a first preset threshold, the GSM adjacent cell with the switching priority probability meeting the set value is measured, the service cell is switched to the GSM adjacent cell meeting the preset condition in the measured GSM adjacent cell, and the switching from the LTE to the 2G different systems is completed. And the CSFB fallback frequency point configured in the serving cell is mapped to the BCCH frequency point of the GSM neighboring cell of the serving cell, when the CSFB fallback frequency point of the serving cell cannot be mapped to the BCCH frequency point of any GSM neighboring cell, the neighboring cell with the frequency point is determined to be missed, and the CSFB fallback frequency point with the mapping failure is marked, so that data reference is provided for adding the missed neighboring cell, the missed neighboring cell is found in time, the configuration of the neighboring cell is completed, and the missed CSFB fallback frequency point cannot be continuously switched to the neighboring cell of the frequency point and is excluded from the measurement range of the GSM neighboring cell, so that the measurement time is further saved, and the measurement efficiency is improved.
Based on the same inventive concept, embodiments of the present invention further provide a device for switching between different systems of a voice service, and because the principle of the device for switching between different systems of a voice service to solve the problem is similar to the method for switching between different systems of a voice service, the method can be referred to for implementing the system, and repeated details are not repeated.
as shown in fig. 3, a schematic structural diagram of a different-system switching device for a voice service according to an embodiment of the present invention includes:
A first determining unit 31, configured to determine a priority probability of each CSFB fallback frequency point according to the fallback times and the fallback success times of each cs fallback CSFB fallback frequency point configured by the serving cell within the preset time period;
a second determining unit 32, configured to determine, according to a mapping relationship between a CSFB fallback frequency point configured in each preset cell and a broadcast control channel BCCH frequency point of an adjacent cell thereof, when it is determined that a CSFB fallback frequency point corresponding to a BCCH frequency point of a GSM adjacent cell of the serving cell exists in CSFB fallback frequency points of the serving cell, a switching priority probability of the GSM adjacent cell is determined as a priority probability of a corresponding CSFB fallback frequency point;
the measurement unit 33 is configured to measure, when it is determined that the RSRP value in the voice service is lower than the first preset threshold, a GSM neighbor cell whose handover priority probability meets a set value;
a switching unit 34, configured to switch the serving cell to a GSM neighboring cell that meets a preset condition among the measured GSM neighboring cells.
Preferably, the switching unit 34 is specifically configured to switch the serving cell to the GSM neighboring cell whose RSRP value in the measured GSM neighboring cells is higher than a second preset threshold and whose RSRP value is highest.
preferably, the first determining unit 31 is specifically configured to determine the priority probability of each CSFB fallback frequency point by the following formula:
Pn＝Ps,n×Ss,n,n＝1,2,......,N
Wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
Pnrepresenting the priority probability of the CSFB fallback frequency point n;
Ps,nRepresenting the fallback success rate of the CSFB fallback frequency point n;
Ss,nand the fallback success ratio of the CSFB fallback frequency point n is shown.
preferably, the first determining unit 31 is specifically configured to determine the fallback success rate of each CSFB fallback frequency point by the following formula:
wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
Ps,nRepresenting the fallback success rate of the CSFB fallback frequency point n;
Snrepresenting the number of successful fallback times of the CSFB fallback frequency point n in the preset time period;
RnAnd representing the number of the fallback of the CSFB fallback frequency point n in the preset time period.
preferably, the first determining unit 31 is specifically configured to determine the fallback success ratio of each CSFB fallback frequency point by the following formula:
Wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
Ss,nRepresenting the successful falling ratio of the CSFB falling frequency point n;
Snrepresenting the number of the fall-back success times of the frequency point n in the preset time period;
and indicating the total number of successful times of the CSFB fallback at the frequency point 1,2, … …, N within the preset time period.
Optionally, the apparatus further comprises:
and a marking unit 35, configured to mark CSFB fallback frequency points that do not correspond to BCCH frequency points of all GSM neighboring cells of the serving cell among CSFB fallback frequency points of the serving cell after determining that the switching priority probability of the GSM neighboring cells is the priority probability of the corresponding CSFB fallback frequency point when determining that the CSFB fallback frequency points corresponding to BCCH frequency points of GSM neighboring cells of the serving cell exist among the CSFB fallback frequency points of the serving cell.
Preferably, the measuring unit 33 is further configured to measure, if the RSRP value of each GSM neighboring cell whose handover priority probability satisfies the set value is lower than the second preset threshold, other GSM neighboring cells whose handover priority probability does not satisfy the set value; and switching the service cell to the GSM adjacent cell with the RSRP value higher than the second preset threshold and the highest RSRP value in the other GSM adjacent cells.
based on the same technical concept, an embodiment of the present invention further provides a communication device 400, and referring to fig. 4, the communication device 400 is configured to implement the inter-system handover method for the voice service described in the foregoing method embodiment, where the communication device 400 of this embodiment may include: a memory 401, a processor 402 and a computer program stored in said memory and executable on said processor, such as a heterogeneous system handover program for voice services. When executing the computer program, the processor implements the steps in each of the embodiments of the method for switching between different systems of the voice service, such as step S21 shown in fig. 2. Alternatively, the processor, when executing the computer program, implements the functions of the modules/units in the above-described device embodiments, for example, 31.
The embodiment of the present invention does not limit the specific connection medium between the memory 401 and the processor 402. In the embodiment of the present application, the memory 401 and the processor 402 are connected by the bus 403 in fig. 4, the bus 403 is represented by a thick line in fig. 4, and the connection manner between other components is merely illustrative and is not limited thereto. The bus 403 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 4, but this does not indicate only one bus or one type of bus.
The memory 401 may be a volatile memory (volatile memory), such as a random-access memory (RAM); the memory 401 may also be a non-volatile memory (non-volatile) such as, but not limited to, a read-only memory (rom), a flash memory (flash memory), a Hard Disk Drive (HDD) or a solid-state drive (SSD), or the memory 401 may be any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 401 may be a combination of the above memories.
The processor 402 is configured to implement the method for inter-system handover of a voice over lte service shown in fig. 2, and includes:
The processor 402 is configured to invoke the computer program stored in the memory 401 to execute step S21 shown in fig. 2, determine the priority probability of each CSFB fallback frequency point according to the fallback times and the fallback success times of each CSFB fallback frequency point of the circuit domain fallback CSFB fallback frequency points configured by the serving cell within the preset time period, step S22, according to the preset mapping relationship between the CSFB fallback frequency points configured by each cell and the broadcast control channel BCCH frequency points of its neighboring cell, when determining that the CSFB fallback frequency points of the serving cell exist in the BCCH frequency points of the GSM neighboring cell of the serving cell, determining the switching priority probability of the GSM adjacent cell as the priority probability of the corresponding CSFB fallback frequency point, and when determining that the RSRP value in the Voice over Voice service is lower than a first preset threshold at step S23, measuring the GSM adjacent cell with the switching priority probability meeting the set value, and step S24, switching the service cell to the GSM adjacent cell meeting the preset condition in the measured GSM adjacent cells.
the embodiment of the present application further provides a computer-readable storage medium, which stores computer-executable instructions required to be executed by the processor, and includes a program required to be executed by the processor.
In some possible embodiments, various aspects of the method for switching between different systems of a voice service over Volte according to the present invention may also be implemented as a program product, where the program product includes a program code, and when the program product runs on a communication device, the program code is configured to enable the communication device to perform the steps of the method for switching between different systems of a voice service over Volte according to various exemplary embodiments of the present invention, described above in this specification, for example, the communication device may perform step S21 shown in fig. 2, determine the priority probability of each CSFB fallback frequency point according to the fallback times and the fallback success times of the CSFB fallback frequency points of each circuit domain fallback configured by a serving cell within a preset time period, step S22, determine a mapping relationship between the CSFB fallback frequency points configured by each preset cell and a broadcast control channel BCCH of its neighboring cell, and when it is determined that a GSM neighboring cell corresponding to the serving cell exists in the CSFB fallback frequency points of the serving cell And S23, when the RSRP value in the voice service is lower than a first preset threshold, measuring the GSM adjacent cell with the switching priority probability meeting a set value, and S24, switching the service cell to the GSM adjacent cell meeting preset conditions in the measured GSM adjacent cells.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
the program product for inter-system handover of voice services of embodiments of the present invention may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a computing device. However, the program product of the present invention is not limited in this regard and, in the present document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
a readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device over any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., over the internet using an internet service provider).
it should be noted that although several units or sub-units of the apparatus are mentioned in the above detailed description, such division is merely exemplary and not mandatory. Indeed, the features and functions of two or more of the units described above may be embodied in one unit, according to embodiments of the invention. Conversely, the features and functions of one unit described above may be further divided into embodiments by a plurality of units.
moreover, while the operations of the method of the invention are depicted in the drawings in a particular order, this does not require or imply that the operations must be performed in this particular order, or that all of the illustrated operations must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions.
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, 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, 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.
the present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices), 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 apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, 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 apparatus 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 apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus 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 in those 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 invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (16)

1. a method for switching different systems of a Voice over Voice service is characterized by comprising the following steps:
Determining the priority probability of each CSFB fallback frequency point according to the fallback times and the fallback success times of each CSFB fallback frequency point configured by a service cell in a preset time period;
according to the mapping relation between the preset CSFB fallback frequency points configured by each cell and the broadcast control channel BCCH frequency points of the adjacent cells, when the CSFB fallback frequency points of the service cell are determined to have CSFB fallback frequency points corresponding to the BCCH frequency points of the GSM adjacent cells of the service cell, the switching priority probability of the GSM adjacent cells is determined to be the priority probability of the corresponding CSFB fallback frequency points;
When the RSRP value in the voice service is lower than a first preset threshold, measuring a GSM (global system for mobile communications) adjacent cell of which the switching priority probability meets a set value;
and switching the service cell to the GSM adjacent cell meeting preset conditions in the measured GSM adjacent cells.
2. the method of claim 1, wherein the switching the serving cell to the GSM neighbor cell that satisfies the preset condition among the measured GSM neighbor cells specifically comprises:
And switching the serving cell to the GSM neighboring cell with the RSRP value higher than a second preset threshold and the highest RSRP value in the measured GSM neighboring cells.
3. The method of claim 1, wherein the priority probability of each CSFB fallback frequency point is determined by the following formula:
Pn＝Ps,n×Ss,n,n＝1,2,......,N
wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
PnRepresenting the priority probability of the CSFB fallback frequency point n;
Ps,nRepresenting the fallback success rate of the CSFB fallback frequency point n;
Ss,nand the fallback success ratio of the CSFB fallback frequency point n is shown.
4. the method of claim 3, wherein the fallback success rate for each CSFB fallback frequency point is determined by the following formula:
Wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
Ps,nrepresenting the fallback success rate of the CSFB fallback frequency point n;
SnRepresenting the number of successful fallback times of the CSFB fallback frequency point n in the preset time period;
Rnand representing the number of the fallback of the CSFB fallback frequency point n in the preset time period.
5. the method of claim 3, wherein the fallback success ratio for each CSFB fallback frequency point is determined by the following formula:
wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
Ss,nto representThe successful fallback ratio of the CSFB fallback frequency point n is obtained;
SnRepresenting the number of the fall-back success times of the frequency point n in the preset time period;
And indicating the total number of successful times of the CSFB fallback at the frequency point 1,2, … …, N within the preset time period.
6. The method of claim 1, wherein after determining that there is a CSFB fallback frequency point corresponding to a BCCH frequency point of a GSM neighbor cell of the serving cell among CSFB fallback frequency points of the serving cell, the handover priority probability of the GSM neighbor cell is determined as the priority probability of the corresponding CSFB fallback frequency point, the method further comprises:
and marking CSFB fallback frequency points which do not correspond to BCCH frequency points of all GSM neighboring cells of the serving cell in the CSFB fallback frequency points of the serving cell.
7. The method of claim 1, further comprising:
If the RSRP value of each GSM adjacent region with the switching priority probability meeting the set value is lower than the second preset threshold, measuring other GSM adjacent regions with the switching priority probability not meeting the set value; and are
and switching the serving cell to the GSM neighboring cell with the RSRP value higher than a second preset threshold and the highest RSRP value in the other GSM neighboring cells.
8. A device for switching between different systems of Voice over Voice service (Volte), comprising:
the first determining unit is used for determining the priority probability of each CSFB fallback frequency point according to the fallback times and the fallback success times of each CSFB fallback frequency point configured by the serving cell within the preset time period;
a second determining unit, configured to determine, according to a mapping relationship between a preset CSFB fallback frequency point configured in each cell and a broadcast control channel BCCH frequency point of an adjacent cell thereof, when it is determined that a CSFB fallback frequency point corresponding to a BCCH frequency point of a GSM adjacent cell of the serving cell exists in CSFB fallback frequency points of the serving cell, a switching priority probability of the GSM adjacent cell is determined as a priority probability of a corresponding CSFB fallback frequency point;
the measuring unit is used for measuring the GSM adjacent region with the switching priority probability meeting the set value when the RSRP value in the Voice over Voice service is determined to be lower than a first preset threshold;
And the switching unit is used for switching the service cell to the GSM neighbor cell meeting the preset conditions in the measured GSM neighbor cells.
9. The apparatus of claim 8,
The switching unit is specifically configured to switch the serving cell to the GSM neighboring cell whose RSRP value is higher than a second preset threshold and whose RSRP value is highest among the measured GSM neighboring cells.
10. The apparatus of claim 8,
the first determining unit is specifically configured to determine the priority probability of each CSFB fallback frequency point by using the following formula:
Pn＝Ps,n×Ss,n,n＝1,2,......,N
Wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
PnRepresenting the priority probability of the CSFB fallback frequency point n;
Ps,nrepresenting the fallback success rate of the CSFB fallback frequency point n;
Ss,nAnd the fallback success ratio of the CSFB fallback frequency point n is shown.
11. The apparatus of claim 10,
the first determining unit is specifically configured to determine the fallback success rate of each CSFB fallback frequency point by the following formula:
Wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
Ps,nRepresenting the fallback success rate of the CSFB fallback frequency point n;
Snrepresenting the number of successful fallback times of the CSFB fallback frequency point n in the preset time period;
Rnand representing the number of the fallback of the CSFB fallback frequency point n in the preset time period.
12. the apparatus of claim 10,
the first determining unit is specifically configured to determine a fallback success ratio of each CSFB fallback frequency point by using the following formula:
Wherein, N represents the number of CSFB fallback frequency points configured by the serving cell;
Ss,nRepresenting the successful falling ratio of the CSFB falling frequency point n;
Snrepresenting the number of the fall-back success times of the frequency point n in the preset time period;
And indicating the total number of successful times of the CSFB fallback at the frequency point 1,2, … …, N within the preset time period.
13. The apparatus of claim 8, further comprising:
and the marking unit is used for marking the CSFB fallback frequency points which do not correspond to the BCCH frequency points of all the GSM adjacent cells of the service cell in the CSFB fallback frequency points of the service cell after determining that the switching priority probability of the GSM adjacent cells is the priority probability of the corresponding CSFB fallback frequency points when determining that the CSFB fallback frequency points corresponding to the BCCH frequency points of the GSM adjacent cells of the service cell exist in the CSFB fallback frequency points of the service cell.
14. the apparatus of claim 8,
The measurement unit is further configured to measure, if the RSRP value of each GSM neighbor cell whose handover priority probability satisfies the set value is lower than the second preset threshold, other GSM neighbor cells whose handover priority probability does not satisfy the set value; and switching the service cell to the GSM adjacent cell with the RSRP value higher than the second preset threshold and the highest RSRP value in the other GSM adjacent cells.
15. a communication device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the inter-system handover method for voice service according to any one of claims 1 to 7.
16. a computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps of the method for inter-system handover of voice services according to any one of claims 1 to 7.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112887927A (en) * 2021-01-20 2021-06-01 维沃移动通信有限公司 Voice fallback method and device and user equipment
CN113824531A (en) * 2020-06-18 2021-12-21 中国移动通信集团吉林有限公司 Method and device for generating coding rate, base station and storage medium
CN113950114A (en) * 2021-10-21 2022-01-18 中国联合网络通信集团有限公司 Blind redirection fallback method, base station, terminal and network system
CN116801364A (en) * 2023-08-22 2023-09-22 Tcl通讯科技（成都）有限公司 Cell measurement method, device, storage medium and terminal

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103636247A (en) * 2013-09-22 2014-03-12 华为技术有限公司 Determination method, device and system for pilot frequency neibouring cells, and measurement method and device for pilot frequency neibouring cells
WO2014101139A1 (en) * 2012-12-28 2014-07-03 华为技术有限公司 Circuit switched fall back switching method, device and base station
CN104053211A (en) * 2014-06-12 2014-09-17 京信通信系统（中国）有限公司 Method and device for conducting frequency point self-configuration
CN104301902A (en) * 2014-09-05 2015-01-21 中国联合网络通信集团有限公司 Adjacent region configuration method and device
CN105120492A (en) * 2015-07-30 2015-12-02 中国普天信息产业北京通信规划设计院 Method for optimizing CSFB frequency point configuration based on measurement report data
US20160007239A1 (en) * 2013-02-26 2016-01-07 Samsung Electronics Co., Ltd. Method and system for improving circuit switched fall back (csfb) performance
CN105338583A (en) * 2014-07-29 2016-02-17 展讯通信（上海）有限公司 Network switching method based on circuit switched domain fall back CSFB
CN105828393A (en) * 2015-01-06 2016-08-03 中国移动通信集团上海有限公司 Method and device for inter-system neighbor cell configuration
CN105848237A (en) * 2015-01-16 2016-08-10 中国移动通信集团广东有限公司 Method and device for obtaining 2G measurement frequency points of circuit switched fall back CSFB
CN106256145A (en) * 2015-04-10 2016-12-21 华为技术有限公司 The measuring method of different system, relevant apparatus and the system of measurement
CN106332191A (en) * 2015-07-03 2017-01-11 中国移动通信集团广东有限公司 Method and device for adding adjacent regions in case of circuit domain backward in LTE network
CN107105443A (en) * 2016-02-22 2017-08-29 上海大唐移动通信设备有限公司 A kind of different system adjacent cell optimization method and device

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014101139A1 (en) * 2012-12-28 2014-07-03 华为技术有限公司 Circuit switched fall back switching method, device and base station
US20160007239A1 (en) * 2013-02-26 2016-01-07 Samsung Electronics Co., Ltd. Method and system for improving circuit switched fall back (csfb) performance
CN103636247A (en) * 2013-09-22 2014-03-12 华为技术有限公司 Determination method, device and system for pilot frequency neibouring cells, and measurement method and device for pilot frequency neibouring cells
CN104053211A (en) * 2014-06-12 2014-09-17 京信通信系统（中国）有限公司 Method and device for conducting frequency point self-configuration
CN105338583A (en) * 2014-07-29 2016-02-17 展讯通信（上海）有限公司 Network switching method based on circuit switched domain fall back CSFB
CN104301902A (en) * 2014-09-05 2015-01-21 中国联合网络通信集团有限公司 Adjacent region configuration method and device
CN105828393A (en) * 2015-01-06 2016-08-03 中国移动通信集团上海有限公司 Method and device for inter-system neighbor cell configuration
CN105848237A (en) * 2015-01-16 2016-08-10 中国移动通信集团广东有限公司 Method and device for obtaining 2G measurement frequency points of circuit switched fall back CSFB
CN106256145A (en) * 2015-04-10 2016-12-21 华为技术有限公司 The measuring method of different system, relevant apparatus and the system of measurement
CN106332191A (en) * 2015-07-03 2017-01-11 中国移动通信集团广东有限公司 Method and device for adding adjacent regions in case of circuit domain backward in LTE network
CN105120492A (en) * 2015-07-30 2015-12-02 中国普天信息产业北京通信规划设计院 Method for optimizing CSFB frequency point configuration based on measurement report data
CN107105443A (en) * 2016-02-22 2017-08-29 上海大唐移动通信设备有限公司 A kind of different system adjacent cell optimization method and device

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CN113824531A (en) * 2020-06-18 2021-12-21 中国移动通信集团吉林有限公司 Method and device for generating coding rate, base station and storage medium
CN113824531B (en) * 2020-06-18 2023-08-15 中国移动通信集团吉林有限公司 Method and device for generating coding rate, base station and storage medium
CN112887927A (en) * 2021-01-20 2021-06-01 维沃移动通信有限公司 Voice fallback method and device and user equipment
CN112887927B (en) * 2021-01-20 2022-02-08 维沃移动通信有限公司 Voice fallback method and device and user equipment
CN113950114A (en) * 2021-10-21 2022-01-18 中国联合网络通信集团有限公司 Blind redirection fallback method, base station, terminal and network system
CN113950114B (en) * 2021-10-21 2023-08-11 中国联合网络通信集团有限公司 Blind redirection fallback method, base station, terminal and network system
CN116801364A (en) * 2023-08-22 2023-09-22 Tcl通讯科技（成都）有限公司 Cell measurement method, device, storage medium and terminal
CN116801364B (en) * 2023-08-22 2023-12-15 Tcl通讯科技（成都）有限公司 Cell measurement method, device, storage medium and terminal

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