CN117098082A - Method and system for 5G voice fallback 4G of DSS scene - Google Patents
Method and system for 5G voice fallback 4G of DSS scene Download PDFInfo
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- CN117098082A CN117098082A CN202311345568.2A CN202311345568A CN117098082A CN 117098082 A CN117098082 A CN 117098082A CN 202311345568 A CN202311345568 A CN 202311345568A CN 117098082 A CN117098082 A CN 117098082A
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- TVZRAEYQIKYCPH-UHFFFAOYSA-N 3-(trimethylsilyl)propane-1-sulfonic acid Chemical compound C[Si](C)(C)CCCS(O)(=O)=O TVZRAEYQIKYCPH-UHFFFAOYSA-N 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005259 measurement Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 7
- 230000004913 activation Effects 0.000 claims description 6
- 238000011156 evaluation Methods 0.000 claims description 6
- 230000011664 signaling Effects 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application provides a method and a system for 5G voice fallback 4G of a DSS scene, wherein the method comprises the following steps: configuring a 4G DSS carrier sharing function in a 5G network coverage cell, so that the 5G base station network coverage cell and the 4G DSS network coverage cell coexist; s3, before the terminal triggers the voice service of the 5G voice fallback 4G, the 5G base station detects the wireless quality of the coverage cell of the 4G DSS network in real time; s5, when the terminal triggers the voice service of the 5G voice fallback 4G, the 5G base station evaluates whether the wireless quality of the 4G DSS network coverage cell reaches a preset value; and S7, when the wireless quality of the 4G DSS network coverage cell reaches a preset value, the 5G base station activates the 4G DSS network coverage cell, and adopts a blind switching mode of 5G voice fallback 4G to fallback the terminal from the 5G network coverage cell to the 4G DSS network coverage cell. The method of the application can accelerate the speed of 5G voice falling 4G and improve the falling quality of the 5G voice falling 4G.
Description
Technical Field
The application relates to the technical field of communication, in particular to a method and a system for 5G voice fallback 4G of a DSS scene.
Background
Although communication networks have evolved to 5G, the 5G voice fallback 4G (EPS FALLBACK) scheme is also necessary, considering that 5G is deployed at different stages and scales, while 4G networks have been widely deployed and may exist for a long time in the future, as well as the need for voice service continuity assurance.
The 5G voice drops back to 4G, which means that the 5G NR does not support voice service, when the user equipment initiates or receives voice call in the 5G NR, the voice service is provided by VoLTE of 4G, and when the voice call is ended, the user equipment returns to the 5G network.
However, the conventional signaling flow steps of 5G voice fallback 4G under each use scene at the present stage are more, so that the rate of 5G fallback 4G is slower.
Disclosure of Invention
The application mainly aims to provide a method and a system for 5G voice fallback 4G, which can accelerate the speed of 5G voice fallback 4G and improve the fallback quality of the 5G voice fallback 4G under a DSS carrier sharing scene.
In order to achieve the above objective, the present application provides a method for 5G voice fallback 4G in DSS scene, comprising the following steps:
s1, configuring a 4G DSS carrier sharing function in a 5G network coverage cell, so that the 5G base station network coverage cell and the 4G DSS network coverage cell coexist;
s3, before the terminal triggers the voice service of the 5G voice fallback 4G, the 5G base station detects the wireless quality of the coverage cell of the 4G DSS network in real time;
s5, when the terminal triggers the voice service of the 5G voice fallback 4G, the 5G base station evaluates whether the wireless quality of the 4G DSS network coverage cell reaches a preset value;
and S7, when the wireless quality of the 4G DSS network coverage cell reaches a preset value, the 5G base station activates the 4G DSS network coverage cell, and adopts a blind switching mode of 5G voice fallback 4G to fallback the terminal from the 5G network coverage cell to the 4G DSS network coverage cell.
In step S5, when the wireless quality of the coverage cell of the 4G DSS network does not reach the preset value, conventional 5G voice fallback 4G handover or 5G voice fallback 4G blind redirection policy handover is adopted, and the terminal is fallback from the coverage cell of the 5G network to the coverage cell of the 4G DSS network.
As an preferable technical solution, the blind switching mode of the 5G voice fallback 4G is to directly perform the switching of the 5G voice fallback 4G.
As a preferred technical solution, the conventional 5G voice fallback 4G handover includes the following steps: when the terminal triggers the voice service, the 5G base station issues measurement reconfiguration; the terminal reports the measurement report; and then performing 5G voice fallback 4G switching.
As a preferred solution, the 5G voice fallback 4G blind redirection strategy comprises the following steps: when the terminal triggers the voice service, the 5G base station transmits RRC release signaling carrying 4G frequency point information; and then performing 5G voice fallback 4G switching.
In step S3, the 5G base station uses the downlink average CQI and the uplink NI parameter to evaluate whether the radio quality of the coverage cell of the 4G DSS network reaches a preset value.
As a preferred technical solution, the preset value includes a configuration value of a downlink average CQI, a configuration value of an uplink NI parameter, and a configuration detection period of the downlink average CQI and the uplink NI parameter.
The application also provides a system for 5G voice fallback 4G of the DSS scene, which comprises a 5G base station, wherein the 5G base station comprises a configuration module, an evaluation module, an activation module and a switching module, and the configuration module is used for configuring a 4G DSS carrier sharing function in a 5G network coverage cell so that the 5G base station network coverage cell and the 4G DSS network coverage cell coexist; the evaluation module is used for detecting the wireless quality of the coverage cell of the 4G DSS network in real time before the terminal triggers the voice service of the 5G voice fallback 4G, and is also used for evaluating whether the wireless quality of the coverage cell of the 4G DSS network reaches a preset value or not when the terminal triggers the voice service of the 5G voice fallback 4G; the activation module is used for activating the 4G DSS network coverage cell when the terminal triggers the voice service of the 5G voice fallback 4G and confirms that the wireless quality of the 4G DSS network coverage cell reaches a preset value; and the switching module is used for adopting a blind switching mode of 5G voice fallback 4G to fallback the terminal from the 5G network coverage cell to the 4G DSS network coverage cell when the wireless quality of the 4G DSS network coverage cell is confirmed to reach a preset value.
As an preferable technical scheme, the switching module is further configured to, when the wireless quality of the coverage cell of the 4G DSS network does not reach a preset value, adopt a conventional 5G voice fallback 4G switching or a 5G voice fallback 4G blind redirection policy switching, and drop the terminal back from the coverage cell of the 5G network to the coverage cell of the 4G DSS network.
As a preferred technical solution, the preset value includes a configuration value of a downlink average CQI, a configuration value of an uplink NI parameter, and a configuration detection period of the downlink average CQI and the uplink NI parameter.
According to the application, a 4G DSS carrier sharing function is configured in a 5G network coverage cell, when a terminal triggers a voice service of 5G voice fallback 4G, a 5G base station firstly evaluates that the wireless quality of the 4G DSS network coverage cell reaches a preset value, and adopts a blind switching mode of the 5G voice fallback 4G to enable the 5G voice to directly fall back to the 4G, so that the fallback speed of the 5G fallback 4G is accelerated, and the fallback quality of the 5G fallback 4G can be ensured.
Drawings
For a further disclosure of the present application, reference is first made to the accompanying drawings, in which:
fig. 1 is a schematic diagram of a 5G base station of a system for 5G voice fallback 4G in a DSS scenario according to an embodiment of the present application;
fig. 2 is a flow chart of a method for 5G voice fallback 4G in DSS scenario according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.
Referring to fig. 1, a system for 5G voice fallback 4G provided in the embodiment of the present application includes a 5G base station 1 and a terminal 2. The 5G base station 1 comprises a configuration module 11, an evaluation module 12, an activation module 13 and a handover module 15. The configuration module 11 is configured to configure a 4G ss carrier sharing function in the 5G network coverage cell, so that the 5G base station network coverage cell and the 4G DSS network coverage cell coexist. The evaluation module 12 is configured to detect, in real time, wireless quality of a coverage cell of the 4G DSS network before the terminal 2 triggers the voice service of the 5G voice fallback 4G; and the method is also used for evaluating whether the wireless quality of the coverage cell of the 4G DSS network reaches a preset value or not when the terminal triggers the voice service of the 5G voice fallback 4G. The activation module 13 is configured to activate a 4G DSS network coverage cell when the terminal 2 triggers a voice service of 5G voice fallback 4G. The switching module 15 is configured to, when it is determined that the wireless quality of the 4G DSS network coverage cell reaches a preset value, take a 5G voice fallback 4G blind switching mode, and fallback the terminal 2 from the 5G network coverage cell to the 4G DSS network coverage cell. Specifically, the preset value includes a configuration value of a downlink average CQI, a configuration value of an uplink NI parameter, and a configuration detection period of the downlink average CQI and the uplink NI parameter.
Further, the switching module 15 is further configured to, when the wireless quality of the 4G DSS network coverage cell does not reach the preset value, adopt a conventional 5G voice fallback 4G switching or a 5G voice fallback 4G blind redirection policy switching, and fallback the terminal 2 from the 5G network coverage cell to the 4G DSS network coverage cell. Specifically, the conventional 5G voice fallback 4G handover includes the following steps: when the terminal 2 triggers the voice service, the 5G base station 1 issues measurement reconfiguration, the terminal 2 reports a measurement report, and then the terminal 2 falls back from the 5G network coverage cell to the 4GDSS network coverage cell to continue the voice call.
The following describes in detail the method of the present application for 5G voice fallback 4G with reference to fig. 1 and 2, which includes the following steps performed in sequence:
s1, configuring a 4G DSS carrier sharing function in a 5G network coverage cell, so that the 5G base station 1 network coverage cell and the 4G DSS network coverage cell coexist;
s3, before the terminal 2 triggers the voice service of the 5G voice fallback 4G, the 5G base station evaluates the wireless quality of the coverage cell of the 4G DSS network;
s5, when the terminal 2 triggers the voice service of the 5G voice fallback 4G, the 5G base station 1 evaluates whether the wireless quality of the 4G DSS network coverage cell reaches a preset value;
s7, when the wireless quality of the 4G DSS network coverage cell reaches a preset value, the 5G base station 1 activates the 4G DSS network coverage cell, and adopts a blind switching mode of 5G voice fallback 4G to fallback the terminal 2 from the 5G network coverage cell to the 4G DSS network coverage cell.
Specifically, for example: in a 5G 100M network coverage cell, configuring a 4G DSS 20M network coverage cell, and when a terminal on the 5G 100M network coverage cell does not have a voice service of 5G voice fallback 4G (i.e. does not trigger the voice service), not activating the 4G DSS 20M network coverage cell; when the 5G 100M network coverage cell triggers voice service, the 4G DSS 20M network coverage cell is activated.
In step S7, before the 5G base station 1 activates the 4G DSS network coverage cell, the method further includes that the 5G base station 1 migrates the 5G terminal to other bandwidth resources, i.e. migrates the 5G terminal occupying the 4G DSS network coverage resource to other non-DSS network coverage resources. For example, the 5G terminal is migrated to other bandwidth resources by BWP handover implementation or by reallocating resources by reconfiguration.
Thus, the flow steps of the 5G voice fallback 4G are simplified, and the fallback speed of the 5G voice fallback 4G is accelerated.
Further, in step S5, when the wireless quality of the 4G DSS network coverage cell does not reach the preset value, a conventional 5G voice fallback 4G handover or EPSFB blind redirection policy is adopted to fallback the terminal from the 5G network coverage cell to the 4G DSS network coverage cell. Specifically, the conventional 5G voice fallback 4G handover includes the steps of: when the terminal 2 triggers the voice service, the 5G base station 1 issues measurement reconfiguration; the terminal 2 reports a measurement report; and then performing 5G voice fallback 4G switching. The 5G voice fallback 4G blind redirection strategy comprises the following steps: when the terminal 2 triggers the voice service, the 5G base station 1 issues RRC release signaling carrying 4G frequency point information to perform 5G voice fallback 4G switching. And the 5G voice fallback 4G blind switching mode is to directly perform 5G voice fallback 4G switching under the condition of ensuring the wireless quality of a cell covered by the 4G DSS network. Therefore, the falling speed and the falling efficiency of the 5G voice falling 4G are quickened, and the falling quality of the 5G voice falling 4G can be guaranteed.
The 5G voice fallback 4G blind switching mode does not have a measurement reconfiguration issuing and measurement reporting flow.
In this embodiment, in step S5, the 5G base station uses the downlink average CQI and the uplink NI parameter to evaluate whether the wireless quality of the coverage cell of the 4G DSS network reaches a preset value. Specifically, the preset value includes a configuration value of a downlink average CQI, a configuration value of an uplink NI parameter, and a configuration detection period of the downlink average CQI and the uplink NI parameter. CQI (Channel Quality Indication) is a channel quality indication, which represents the quality of the current downlink channel, and corresponds to the signal to noise ratio of the channel, and the value range is 0-31. NI (noise), i.e. noise, the uplink NI parameter may represent how good the current uplink channel quality is. The 5G base station can flexibly configure preset values (threshold) of downlink average CQI and uplink NI parameters according to actual needs; for example: the downlink average CQI is configured to be larger than 15 and the uplink NI parameter is configured to be lower than-105, and the detection period is 10 seconds.
The application configures 4G DSS carrier sharing function in 5G network coverage cell, when terminal triggers voice service of 5G voice fallback 4G, 5G base station evaluates wireless quality of 4G DSS network coverage cell to reach preset value, adopts blind switching mode of 5G voice fallback 4G to make 5G voice fallback 4G directly, and can ensure fallback quality of 5G fallback 4G while accelerating fallback speed of 5G fallback 4G; the voice call effect of the terminal after falling back is better.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (10)
1. A method for 5G voice fallback 4G of a DSS scene, the method comprising the steps of:
s1, configuring a 4G DSS carrier sharing function in a 5G network coverage cell, so that the 5G base station network coverage cell and the 4G DSS network coverage cell coexist;
s3, before the terminal triggers the voice service of the 5G voice fallback 4G, the 5G base station detects the wireless quality of the coverage cell of the 4G DSS network in real time;
s5, when the terminal triggers the voice service of the 5G voice fallback 4G, the 5G base station evaluates whether the wireless quality of the 4G DSS network coverage cell reaches a preset value;
and S7, when the wireless quality of the 4G DSS network coverage cell reaches a preset value, the 5G base station activates the 4G DSS network coverage cell, and adopts a blind switching mode of 5G voice fallback 4G to fallback the terminal from the 5G network coverage cell to the 4G DSS network coverage cell.
2. The method for 5G voice fallback 4G in DSS scenario according to claim 1, wherein in step S5, when the wireless quality of the 4G DSS network coverage cell does not reach the preset value, a conventional 5G voice fallback 4G handover or 5G voice fallback 4G blind redirection policy handover is adopted to fallback the terminal from the 5G network coverage cell to the 4G DSS network coverage cell.
3. The method for 5G voice fallback 4G in DSS scene according to claim 1, wherein the blind switching mode of 5G voice fallback 4G is to directly perform switching of 5G voice fallback 4G.
4. The method of 5G voice fallback 4G of a DSS scene of claim 2 wherein the conventional 5G voice fallback 4G handoff comprises the steps of: when the terminal triggers the voice service, the 5G base station issues measurement reconfiguration; the terminal reports the measurement report; and then performing 5G voice fallback 4G switching.
5. The method of 5G voice fallback 4G of a DSS scene of claim 2 wherein the 5G voice fallback 4G blind redirection policy comprises the steps of: when the terminal triggers the voice service, the 5G base station transmits RRC release signaling carrying 4G frequency point information; and then performing 5G voice fallback 4G switching.
6. The method for 5G voice fallback of DSS scenarios of claim 1, wherein in step S5, the 5G base station uses the downlink average CQI and the uplink NI parameter to evaluate whether the radio quality of the 4G DSS network overlay cell reaches a preset value.
7. The method for 5G voice fallback 4G of DSS scenarios of claim 1, wherein the preset values include a configuration value of downlink average CQI, a configuration value of uplink NI, and a configuration detection period of downlink average CQI and uplink NI parameters.
8. The system for 5G voice fallback 4G of the DSS scene is characterized by comprising a configuration module, an evaluation module, an activation module and a switching module, wherein the configuration module is used for configuring a 4G DSS carrier sharing function in a 5G network coverage cell so that the 5G base station network coverage cell and the 4G DSS network coverage cell coexist; the evaluation module is used for detecting the wireless quality of the coverage cell of the 4G DSS network in real time before the terminal triggers the voice service of the 5G voice fallback 4G, and is also used for evaluating whether the wireless quality of the coverage cell of the 4G DSS network reaches a preset value or not when the terminal triggers the voice service of the 5G voice fallback 4G; the activation module is used for activating the 4G DSS network coverage cell when the terminal triggers the voice service of the 5G voice fallback 4G and confirms that the wireless quality of the 4G DSS network coverage cell reaches a preset value; and the switching module is used for adopting a blind switching mode of 5G voice fallback 4G to fallback the terminal from the 5G network coverage cell to the 4G DSS network coverage cell when the wireless quality of the 4G DSS network coverage cell is confirmed to reach a preset value.
9. The DSS scene 5G voice fallback 4G system according to claim 8, wherein the handover module is further configured to, when the radio quality of the 4G DSS network overlay cell does not reach a preset value, take a conventional 5G voice fallback 4G handover or a 5G voice fallback 4G blind redirection policy handover to fallback the terminal from the 5G network overlay cell to the 4G DSS network overlay cell.
10. The DSS scene 5G speech fallback 4G system according to claim 8, wherein the preset values comprise a configuration value of a downlink average CQI, a configuration value of an uplink NI parameter, and a configuration detection period of the downlink average CQI and the uplink NI parameter.
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| CN115023961A (en) * | 2020-01-30 | 2022-09-06 | 高通股份有限公司 | Dynamic spectrum sharing between 4G wireless networks and 5G wireless networks |
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