CN106550379B - Method and device for reducing dropped call rate of VoLTE service - Google Patents

Method and device for reducing dropped call rate of VoLTE service Download PDF

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CN106550379B
CN106550379B CN201510606830.3A CN201510606830A CN106550379B CN 106550379 B CN106550379 B CN 106550379B CN 201510606830 A CN201510606830 A CN 201510606830A CN 106550379 B CN106550379 B CN 106550379B
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service
qci
threshold value
user
concurrent
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CN106550379A (en
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李路鹏
熊尚坤
杜刚
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • 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

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Abstract

The invention discloses a method and a device for reducing a dropped call rate of a VoLTE service, wherein the method comprises the following steps: judging the use condition of the concurrent service of the user, wherein the concurrent service refers to the concurrent use of a data service and a VoLTE service; if the user only uses the data service, a first threshold value is used as a preset threshold; if the user uses the concurrent service, a second threshold value is started to serve as a preset threshold, wherein the second threshold value is lower than the first threshold value; and judging whether the LTE signal value is lower than a preset threshold, if so, initiating redirection from the LTE network to the eHRPD network. The method and the device for reducing the dropped call rate of the VoLTE service effectively reduce the dropped call rate of the VoLTE service by judging whether the user uses the concurrent service and starting different redirection thresholds.

Description

Method and device for reducing dropped call rate of VoLTE service
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for reducing a dropped call rate of a VoLTE service.
Background
In a mobile communication LTE (Long Term Evolution) network, an operator deploys volte (voice over LTE) after the LTE network realizes full network coverage in the future. The VoLTE technology has the advantages of shorter user connection waiting time, more natural audio and video communication effect and higher quality. When the LTE network coverage area is smaller than the eHRPD network coverage area, the continuity of the Data service can be achieved through redirection from the LTE network to the eHRPD (Evolved High Rate packet Data) network. However, since there is no VCC (Voice Call Continuity) mechanism from VoLTE to CDMA 1X. Interruption of VoLTE service may occur when a user is handed over from an LTE network to an eHRPD network.
In the prior art, the redirection threshold from the LTE network to the eHRPD network is based on the data service, and the signal quality required for the VoLTE voice call is much lower than that required for the data service. When a user concurrently uses a data service and a VoLTE voice service, if the redirection threshold is set to be higher, a large amount of VoLTE calls are interrupted, and the call quality and the user experience are influenced; if the redirection threshold is set too low, the usage experience of the data service will be affected. Therefore, a new technical solution is needed to solve the above problems in the prior art.
Disclosure of Invention
The invention provides a method and a device for reducing a dropped call rate of a VoLTE service, which effectively reduce the dropped call rate of the VoLTE service by judging whether a user uses a concurrent service and starting different redirection thresholds.
According to an aspect of the present invention, there is provided a method for reducing a dropped call rate of a VoLTE service, including:
judging the use condition of the concurrent service of the user, wherein the concurrent service refers to the concurrent use of a data service and a VoLTE service;
if the user only uses the data service, a first threshold value is used as a preset threshold;
if the user uses the concurrent service, a second threshold value is started to serve as a preset threshold, wherein the second threshold value is lower than the first threshold value;
and judging whether the LTE signal value is lower than a preset threshold, if so, initiating redirection from the LTE network to the eHRPD network.
In one embodiment, further comprising: a step of setting a second threshold value.
In one embodiment, the step of determining the usage of the concurrent services of the user comprises:
receiving QCI sent by a core network;
and judging the service condition of the concurrent service of the user according to the received QCI.
In one embodiment, upon receiving the QCI1And QCI2And QCI1＝5～9， QCI2And when the service rate is 1-3, judging that the user concurrently uses the data service and the VoLTE service.
In one embodiment, QCI1And QCI 82＝1。
According to another aspect of the present invention, an apparatus for reducing a dropped call rate of VoLTE service is provided, including:
the judging unit is used for judging the use condition of the concurrent service of the user, and the concurrent service refers to concurrent use of a data service and a VoLTE service;
a threshold setting unit, configured to enable a first threshold value as a predetermined threshold if the user only uses the data service; if the user uses the concurrent service, a second threshold value is started to serve as a preset threshold, wherein the second threshold value is lower than the first threshold value;
and the redirection unit is used for judging whether the LTE signal value is lower than a preset threshold or not, and if so, initiating redirection from the LTE network to the eHRPD network.
In an embodiment, the threshold setting unit is specifically configured to set the second threshold value if the user uses the concurrent service.
In one embodiment, the QCI further includes a receiving unit, configured to receive the QCI sent by the core network;
and the judging unit is specifically used for judging the service condition of the concurrent service of the user according to the received QCI.
In one embodiment, the determining unit is specifically configured to determine whether the QCI is received1And QCI2And QCI1＝5～9，QCI2And when the service rate is 1-3, judging that the user concurrently uses the data service and the VoLTE service.
In one embodiment, QCI1And QCI 82＝1。
The method and the device for reducing the dropped call rate of the VoLTE service effectively reduce the dropped call rate of the VoLTE service by judging whether the user uses the concurrent service and starting different redirection thresholds.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the embodiments or the drawings used in the description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a schematic diagram of an embodiment of a method for reducing a dropped call rate of a VoLTE service according to the present invention.
FIG. 2 is a schematic diagram of another embodiment of the method for reducing the dropped call rate of the VoLTE service according to the present invention
Fig. 3 is a schematic diagram of an embodiment of an apparatus for reducing a dropped call rate of a VoLTE service according to the present invention.
Fig. 4 is a schematic diagram of another embodiment of the apparatus for reducing a dropped call rate of VoLTE service according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
Fig. 1 is a schematic diagram of an embodiment of a method for reducing a dropped call rate of a VoLTE service according to the present invention. As shown in fig. 1, the method of this embodiment includes the following steps:
step 101, judging the use condition of the concurrent service of the user, wherein the concurrent service refers to concurrent use of a data service and a VoLTE service. If the user uses only the data service, step 102 is entered, and if the user uses the concurrent service, step 103 is entered.
Step 102, if only the data service is used, a first threshold value is enabled to be used as a predetermined threshold.
Step 103, if the concurrent service is used, that is, the data service and the VoLTE service are concurrently used, a second threshold value is enabled as a predetermined threshold, wherein the second threshold value is lower than the first threshold value. In one embodiment, the method further comprises the step of setting a second threshold value.
And step 104, judging whether the LTE signal value is lower than a preset threshold, if so, entering step 105, otherwise, returning to step 101.
Step 105, a redirection from the LTE network to the eHRPD network is initiated.
When the LTE network coverage area is smaller than the eHRPD network coverage area, a user initiates a service in the LTE network and moves to the boundary of the LTE network or an area with poor coverage, and at the moment, whether the user uses the concurrent service is judged. And if the user uses the data service only, enabling the first threshold value as a predetermined threshold, and if the user uses the data service and the VoLTE service simultaneously, enabling the second threshold value as the predetermined threshold. Since the signal quality required for the VoLTE voice call is much lower than the signal quality required for the data service, the enabled second threshold is lower than the first threshold enabled when only the data service is applicable. And judging whether the LTE signal value is lower than a preset threshold, if so, initiating redirection from the LTE network to the eHRPD network, avoiding unnecessary interruption of the VoLTE service and reducing the dropped call rate of the VoLTE service.
Fig. 2 is a schematic diagram of another embodiment of the method for reducing the dropped call rate of the VoLTE service according to the present invention. As shown in fig. 2, the method of this embodiment includes the following steps:
step 201, receiving qci (qos Class identifier) sent by the core network.
Step 202, judging the service condition of the concurrent service of the user according to the received QCI.
For example, in one embodiment, bearers can be divided into two major classes according to different QoS, where GBR (guaranteed bit Rate) traffic and non-GBR traffic, voice traffic is GBR traffic, corresponding QCI is 1-3, data traffic is non-GBR traffic, and corresponding QCI is 5-9.
Upon receiving QCI1And QCI2And QCI1＝5～9，QCI2And when the service rate is 1-3, judging that the user concurrently uses the data service and the VoLTE service. Correspondingly, when only one QCI value is received and the QCI is 5-9, the user is judged to use the data service only.
Preferably, upon receiving the QCI1＝8，QCI2And when the service number is 1, judging that the user concurrently uses the data service and the VoLTE service. When only QCI 8 is received, it is determined that the user uses only the data service.
In step 203, if the user only uses the data service, the first threshold value is enabled as the predetermined threshold.
And step 204, if the user uses the concurrent service, setting a second threshold value as a preset threshold. Wherein the second threshold is lower than the first threshold for using only data traffic.
Step 205, judging whether the LTE signal value is lower than a predetermined threshold, if so, entering step 206, otherwise, returning to step 202.
Step 206, initiate redirection from the LTE network to the eHRPD network.
In the embodiment shown in fig. 2, whether the user uses the concurrent service is determined by receiving the QCI sent by the core network. When judging that the user uses the concurrent service, setting and starting a second threshold value as a preset threshold; and when the user is judged to use the data service only, setting and enabling a first threshold value as a preset threshold. The second threshold value is lower than the first threshold value. When the user only uses the data service, the higher first threshold value can redirect the data service from the LTE network to the eHRPD network in time because the data service has a higher requirement for signal quality, thereby ensuring smooth use of the data service and user experience. When the user uses the VoLTE service and the data service concurrently, the lower second threshold value effectively reduces the call drop rate of the VoLTE service, and improves the user experience.
Fig. 3 is a schematic diagram of an embodiment of an apparatus for reducing a dropped call rate of a VoLTE service according to the present invention. As shown in fig. 3, the apparatus of the present embodiment includes:
the determining unit 301 is configured to determine a service condition of a concurrent service of a user, where the concurrent service refers to concurrent use of a data service and a VoLTE service.
The threshold setting unit 302 is configured to enable a first threshold value as a predetermined threshold if the user only uses the data service; and if the user uses the concurrent service, enabling a second threshold value as a preset threshold, wherein the second threshold value is lower than the first threshold value which is enabled when only the data service is used.
Preferably, the threshold setting unit 302 is further configured to set a second threshold value if the user uses the concurrent service.
The redirection unit 303 is configured to determine whether the LTE signal value is lower than a predetermined threshold, and if so, initiate redirection from the LTE network to the eHRPD network.
The apparatus for reducing the dropped call rate of the VoLTE service in this embodiment may be a base station device such as an eNB (Evolved Node B). When the LTE network coverage area is smaller than the eHRPD network coverage area, the user initiates a service in the LTE network and moves to the LTE network boundary or the area with poor coverage, and at this time, the determining unit 301 determines whether the user uses a concurrent service. If the user only uses the data service, a first threshold value is used as a preset threshold; and if the user concurrently uses the data service and the VoLTE service, enabling the second threshold value as a preset threshold. Since the signal quality required for the VoLTE voice call is much lower than the signal quality required for the data service, the enabled second threshold is lower than the first threshold enabled when only the data service is applicable. The redirection unit 303 determines whether the LTE signal value is lower than a predetermined threshold, and if the LTE signal value is lower than the predetermined threshold, initiates redirection from the LTE network to the eHRPD network, thereby avoiding unnecessary interruption of the VoLTE service and reducing a dropped call rate of the VoLTE service.
Fig. 4 is a schematic diagram of another embodiment of the apparatus for reducing a dropped call rate of VoLTE service according to the present invention. As shown in fig. 4, includes: a judging unit 401, a threshold setting unit 402, a redirecting unit 403 and a receiving unit 404, wherein the judging unit 401, the threshold setting unit 402 and the redirecting unit 403 are the same as or similar to the judging unit 301, the threshold setting unit 302 and the redirecting unit 303 in the embodiment shown in fig. 3.
The receiving unit 404 is configured to receive the QCI sent by the core network.
The determining unit 401 is specifically configured to determine a service condition of the concurrent service of the user according to the received QCI.
For example, when the receiving unit 404 receives the QCI transmitted by the core network1And QCI2And QCI1＝5～9，QCI2When the number is 1 to 3, the determining unit 401 determines that the user uses the concurrent service. When the receiving unit 404 receives only QCI 5 to 9 transmitted by the core network, the determining unit 401 determines that the user uses only the data service.
Preferably, when the receiving unit 404 receives the QCI1＝8，QCI2When the traffic is 1, the determining unit 401 determines that the user concurrently uses the data service and the VoLTE service. When the receiving unit 404 receives only QCI of 8, the judging unit 401 judges that the user uses only the data service.
In the embodiment shown in fig. 4, the receiving unit 404 receives the QCI sent by the core network, and the determining unit 401 determines the usage of the concurrent service of the user. When judging that the user uses the concurrent service, the threshold setting unit 402 sets and enables a second threshold value as a predetermined threshold; when the determining unit 401 determines that the user only uses the data service, a first threshold is set and enabled as a predetermined threshold. The second threshold value is lower than the first threshold value. When the user only uses the data service, the higher first threshold value can redirect the data service from the LTE network to the eHRPD network in time because the data service has a higher requirement for signal quality, thereby ensuring smooth use of the data service and user experience. When the user uses the VoLTE service and the data service concurrently, the redirection unit 403 determines whether the LTE signal value is lower than a predetermined threshold, and if so, initiates redirection from the LTE network to the eHRPD network. The lower second threshold value effectively reduces the call drop rate of the VoLTE service and improves the user experience.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (8)

1. A method for reducing dropped call rate of VoLTE service, comprising:
receiving QCI sent by a core network, and judging the use condition of a concurrent service of a user according to the received QCI, wherein the concurrent service refers to concurrent use of a data service and a VoLTE service;
if the user only uses the data service, a first threshold value is used as a preset threshold;
if the user uses the concurrent service, enabling a second threshold value as a preset threshold, wherein the second threshold value is lower than the first threshold value;
and judging whether the LTE signal value is lower than the preset threshold, if so, initiating redirection from the LTE network to the eHRPD network.
2. The method of claim 1, further comprising:
setting the second threshold value.
3. The method according to claim 1 or 2, comprising:
upon receiving QCI1And QCI2And QCI1＝5～9，QCI2And when the service rate is 1-3, judging that the user concurrently uses the data service and the VoLTE service.
4. The method of claim 3, comprising:
QCI1and QCI 82＝1。
5. An apparatus for reducing dropped call rate of VoLTE services, comprising:
the receiving unit is used for receiving the QCI sent by the core network;
the judging unit is used for judging the service condition of the concurrent service of the user according to the received QCI, wherein the concurrent service refers to the concurrent use of a data service and a VoLTE service;
a threshold setting unit, configured to enable a first threshold value as a predetermined threshold if the user only uses the data service; if the user uses the concurrent service, enabling a second threshold value as a preset threshold, wherein the second threshold value is lower than the first threshold value;
and the redirection unit is used for judging whether the LTE signal value is lower than the preset threshold or not, and if so, initiating the redirection from the LTE network to the eHRPD network.
6. The apparatus according to claim 5, wherein the threshold setting unit is specifically configured to set the second threshold value if the user uses the concurrent service.
7. The apparatus of claim 5 or 6,
the judging unit is specifically used for receiving QCI1And QCI2And QCI1＝5～9，QCI2And when the service rate is 1-3, judging that the user concurrently uses the data service and the VoLTE service.
8. The apparatus of claim 7,
QCI1and QCI 82＝1。
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CN108924858B (en) * 2017-04-26 2021-08-10 中国移动通信集团设计院有限公司 VoLTE voice call drop judgment method and device
CN111491290B (en) * 2020-04-14 2021-06-29 深圳市沃特沃德股份有限公司 Method, device and computer equipment for parallel transmission of network voice and PS domain data
CN114828127B (en) * 2022-06-28 2022-11-15 荣耀终端有限公司 Voice communication method, device and storage medium

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CN103906156A (en) * 2012-12-25 2014-07-02 中国移动通信集团贵州有限公司 Network reselection method and apparatus, and terminal
CN104619023A (en) * 2013-11-05 2015-05-13 中国移动通信集团江苏有限公司 Intelligent paging method and intelligent paging equipment

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CN103906156A (en) * 2012-12-25 2014-07-02 中国移动通信集团贵州有限公司 Network reselection method and apparatus, and terminal
CN104619023A (en) * 2013-11-05 2015-05-13 中国移动通信集团江苏有限公司 Intelligent paging method and intelligent paging equipment

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