CN110392393A - For the business delamination process and device of VoLTE voice service and data service - Google Patents
For the business delamination process and device of VoLTE voice service and data service Download PDFInfo
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- CN110392393A CN110392393A CN201910533579.0A CN201910533579A CN110392393A CN 110392393 A CN110392393 A CN 110392393A CN 201910533579 A CN201910533579 A CN 201910533579A CN 110392393 A CN110392393 A CN 110392393A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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Abstract
The invention discloses a kind of business delamination process, device, electronic equipment and computer storage mediums for VoLTE voice service and data service, wherein this method comprises: receiving the service request that user equipment is sent；According to service request, the corresponding type of service of service request is determined；If type of service is big packet data services, user equipment is switched into the first frequency range, utilizes the corresponding business of service request of the first frequency range carrying user equipment；If type of service is VoLTE voice service or small packet data services, user equipment is switched into the second frequency range, utilizes the corresponding business of service request of the second frequency range carrying user equipment.VoLTE voice service and data service are carried out layered shaping by the program, big packet data services are carried using the first frequency range, VoLTE voice service lesser to RB demand and small packet data services are carried using the second frequency range, the voice quality for effectively having ensured VoLTE voice service keeps audio access more unimpeded.
Description
Technical field
The present invention relates to mobile communication technology fields, and in particular to a kind of for VoLTE voice service and data service
Business delamination process, device, electronic equipment and computer storage medium.
Background technique
With the development of mobile communication technology, while Logistics networks performance indicator is normal, the optimization of user's perception
It is more and more important.VoLTE (long term evolution voice, Voice over Long Term Evolution) is based on (the internet IMS
Protocol multi-media sub-system, Internet Protocol Multimedia Subsystem) realize voice control, all hold
It is loaded on 4G network, it can be achieved that the unification of data service and voice service under consolidated network.In other words, under 4G network not only
The data service of high-speed is only provided, while the voice and video telephone of high quality being also provided, it is real that the latter just needs VoLTE technology
It is existing.
VoLTE voice service is more sensitive to the covering and interference of wireless signal, it is desirable that also higher.Wherein, in wireless signal
Covering in terms of, the problems such as indoor depth covering, blind spot, weak covering point, will lead to high packet loss, so that in progress voice communication
The bad perception such as appearance is interrupted in journey, gulps down word；In terms of the interference of wireless signal, 4G network uplink interference problem than more prominent,
It is interfered such as D1 frequency range 20MHz by broadcasting and TV MMDS under the scene of part, UE (user equipment, User Equipment) is resident high interference
Cell often will appear VoLTE and exhale the problems such as difficult, speech quality is poor.In addition, in the prior art, data service and
VoLTE voice service is handled by the way of mixing carrying, in the case that corresponding frequency band is in high load capacity, VoLTE letter
Order and data service, which can exist, to conflict, so as to lead to problems such as voice that can not access, the downloading rate of data service it is lower.
Even if using existing based on covering RSRP (Reference Signal Received Power, Reference Signal Receiving Power)
Handoff technique also can not effective guarantee VoLTE voice service voice quality.
Summary of the invention
In view of the above problems, it proposes on the present invention overcomes the above problem or at least be partially solved in order to provide one kind
Business delamination process, device, electronic equipment and the computer for VoLTE voice service and data service for stating problem are deposited
Storage media.
According to an aspect of the invention, there is provided a kind of be layered for the business of VoLTE voice service and data service
Processing method, this method comprises:
Receive the service request that user equipment is sent；
According to service request, the corresponding type of service of service request is determined；
If type of service is big packet data services, user equipment is switched into the first frequency range, is carried using the first frequency range
The corresponding business of the service request of user equipment；If type of service is VoLTE voice service or small packet data services, will use
Family equipment switches to the second frequency range, utilizes the corresponding business of service request of the second frequency range carrying user equipment.
According to another aspect of the present invention, it provides a kind of for the layering of the business of VoLTE voice service and data service
Processing unit, the device include:
Receiving module, the service request sent suitable for receiving user equipment；
Determining module is suitable for determining the corresponding type of service of service request according to service request；
User equipment is switched to the first frequency range if being suitable for type of service is big packet data services by frequency range switching module,
Utilize the corresponding business of service request of the first frequency range carrying user equipment；If type of service is VoLTE voice service or small
User equipment is then switched to the second frequency range by packet data services, and the service request using the second frequency range carrying user equipment is corresponding
Business.
According to another aspect of the invention, provide a kind of electronic equipment, comprising: processor, memory, communication interface and
Communication bus, processor, memory and communication interface complete mutual communication by communication bus；
For memory for storing an at least executable instruction, it is above-mentioned for VoLTE language that executable instruction executes processor
The corresponding operation of the business delamination process of sound business and data service.
In accordance with a further aspect of the present invention, a kind of computer storage medium is provided, at least one is stored in storage medium
Executable instruction, executable instruction execute processor as above-mentioned for the layering of the business of VoLTE voice service and data service
The corresponding operation of processing method.
The technical solution provided according to the present invention, by language number layered cooperative strategy, by VoLTE voice service and data industry
Business carries out layered shaping, carries big packet data services using the first frequency range, is carried using the second frequency range lesser to RB demand
VoLTE voice service and small packet data services, not only make frequency range be fully used, but also also avoid big packet data services
The resource of VoLTE voice service is seized, has effectively ensured the voice quality of VoLTE voice service, keeps audio access more unimpeded,
In addition, the access of small packet data services is also made not seize the downloading resource of big packet data services, big packet number is effectively promoted
According to the downloading experience of business.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 a shows according to an embodiment of the invention for the layering of the business of VoLTE voice service and data service
The flow diagram of processing method；
Fig. 1 b shows the setting schematic diagram of the first frequency range and the second frequency range；
Fig. 2 shows in accordance with another embodiment of the present invention for the business of VoLTE voice service and data service point
The flow diagram of layer processing method；
Fig. 3 shows the business layered shaping according to an embodiment of the present invention for VoLTE voice service and data service
The structural block diagram of device；
Fig. 4 shows the structural schematic diagram of a kind of electronic equipment according to an embodiment of the present invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
The present invention provides a kind of business delamination process for VoLTE voice service and data service, this method
Different from the switching method in the prior art based on RSRP, but switched over according to the voice quality of VoLTE voice service
Scheme VoLTE voice service and data service are carried out by layered shaping by language number layered cooperative strategy, specifically, utilize
First frequency range carries big packet data services, is carried using the second frequency range smaller to RB (resource block, Resource Block) demand
VoLTE voice service and small packet data services, the language of VoLTE voice service can be effectively ensured by this processing mode
Sound quality.It is carried out below to provided by the invention for the business delamination process of VoLTE voice service and data service detailed
It describes in detail bright.
Fig. 1 a shows according to an embodiment of the invention for the layering of the business of VoLTE voice service and data service
The flow diagram of processing method, as shown in Figure 1a, this method comprises the following steps:
Step S101 receives the service request that user equipment is sent.
When user wants to carry out VoLTE voice service or data service, such as the desired initiation VoLTE calling of user,
The files such as webpage or foradownloaded video are browsed, user can send service request by user equipment (UE)s such as mobile phones, then in step
The service request that user equipment (UE) is sent is received in S101.
Step S102 determines the corresponding type of service of service request according to service request.
Wherein, in service request include relevant information for describing requested business.If service request be for
The request of VoLTE voice service is requested, then will include VoLTE call information in service request, VoLTE call information is specific
It may include the information such as the VoLTE login state of numbers of calling and called parties and subscriber identification card；If service request is for requesting
The request of data service, then having will include data packet request address in service request, having identified, to request data package to number of request
According to information such as packet sizes.
Specifically, if in service request including VoLTE call information, illustrate that service request is for requesting VoLTE voice
The request of business, it is determined that the corresponding type of service of service request is VoLTE voice service；If including wait request in service request
Data package size illustrates that service request is the request for request data business, it is determined that the corresponding type of service of service request
For data service.Wherein, data service can be divided into two major classes according to request data package size, big packet data services can be with
It is defined as being greater than or equal to the data service of default size to request data package size, small packet data services can be defined as wait ask
Data package size is asked to be less than the data service of default size.Those skilled in the art can according to actual needs carry out default size
Setting, herein without limitation.For example, 50KB can be dimensioned to by default.
If so including being less than default size to request data package size and to request data package size in service request,
Determine that the corresponding type of service of service request is small packet data services；If include in service request to request data package size and to
Request data package size is greater than or equal to default size, it is determined that the corresponding type of service of service request is big packet data services.
After the corresponding type of service of service request has been determined, so that it may be switched to user equipment (UE) according to type of service
Corresponding dedicated frequency range, the business of specified services type is carried using dedicated frequency range, specifically, can pass through step S103 and step
Rapid S104 is realized.
User equipment is switched to the first frequency range by step S103, utilizes the service request of the first frequency range carrying user equipment
Corresponding business.
If it is determined that obtaining type of service is big packet data services, then user equipment (UE) is switched into the first frequency range, utilizes the
The corresponding business of service request of one frequency range carrying user equipment (UE).Those skilled in the art can be according to actual needs to the first frequency
The band limits of section is configured, herein without limitation.
User equipment is switched to the second frequency range by step S104, utilizes the service request of the second frequency range carrying user equipment
Corresponding business.
If it is determined that obtaining type of service is VoLTE voice service or small packet data services, then user equipment (UE) is switched
To the second frequency range, the corresponding business of service request of the second frequency range carrying user equipment (UE) is utilized.Those skilled in the art can root
The band limits of the second frequency range is configured according to actual needs, herein without limitation.First frequency range and the second frequency range are preferably
There is no the band limits of overlapping region.Preferably, it can will cover more excellent, better quality frequency range and be set as the second frequency range, benefit
VoLTE voice service and small packet data services are carried with the second frequency range, can effectively ensure the voice matter of VoLTE voice service
Amount.
For F-band, Fig. 1 b shows the setting schematic diagram of the first frequency range and the second frequency range, as shown in Figure 1 b, can be by F frequency
1885MHz~1905MHz in section is set as the first frequency range, sets the second frequency for 1905MHz~1915MHz in F-band
Section.If it is determined that obtaining type of service is big packet data services, then user equipment (UE) is switched into the first frequency range, utilize the first frequency range
Carry big packet data services；If it is determined that obtaining type of service is VoLTE voice service or small packet data services, then user is set
Standby UE switches to the second frequency range, carries VoLTE voice service and small packet data services using the second frequency range.
According to the business delamination process provided in this embodiment for VoLTE voice service and data service, pass through
Language number layered cooperative strategy, carries out layered shaping for VoLTE voice service and data service, carries big packet number using the first frequency range
According to business, VoLTE voice service lesser to RB demand and small packet data services are carried using the second frequency range, not only makes frequency range
It is fully used, and also avoids the resource that big packet data services seize VoLTE voice service, effectively ensure
The voice quality of VoLTE voice service keeps audio access more unimpeded, in addition, seizing the access of small packet data services not
The downloading resource of big packet data services, is effectively promoted the downloading experience of big packet data services.
Fig. 2 shows in accordance with another embodiment of the present invention for the business of VoLTE voice service and data service point
The flow diagram of layer processing method, as shown in Fig. 2, this method comprises the following steps:
Step S201 receives the service request that user equipment is sent.
Step S202 determines the corresponding type of service of service request according to service request.
If in service request including VoLTE call information, it is determined that the corresponding type of service of service request is VoLTE voice
Business；If including being less than default size to request data package size and to request data package size in service request, it is determined that industry
It is small packet data services that corresponding type of service is requested in business；If including to request data package size and to number of request in service request
It is greater than or equal to default size according to packet size, it is determined that the corresponding type of service of service request is big packet data services.
User equipment is switched to the first frequency range by step S203, utilizes the service request of the first frequency range carrying user equipment
Corresponding business.
If it is determined that obtaining type of service is big packet data services, then user equipment (UE) is switched into the first frequency range, utilizes the
The corresponding business of service request of one frequency range carrying user equipment (UE).
User equipment is switched to the second frequency range by step S204, utilizes the service request of the second frequency range carrying user equipment
Corresponding business.
If it is determined that obtaining type of service is VoLTE voice service or small packet data services, then user equipment (UE) is switched
To the second frequency range, the corresponding business of service request of the second frequency range carrying user equipment (UE) is utilized.Preferably, it can will cover more
Excellent, better quality frequency range is set as the second frequency range, carries VoLTE voice service and small packet data services using the second frequency range,
It can effectively ensure the voice quality of VoLTE voice service.Wherein, for the first frequency range and the second frequency range tool in F-band
Body setting can be as shown in Figure 1 b.
Business delamination process provided by the invention is the VoLTE by being realized based on the switching of the alien frequencies of type of service
It after voice user switches in the second frequency range, keeps switching with frequency during call, VoLTE user's perception is good after guaranteeing the layering of language number
It is good.Wherein, the processes such as the layering of language number is broadly divided into RRC access, default bearing is established, QCI1 carrying is established, conversed, hanging up.In
After the service request for receiving user equipment (UE) transmission, in RRC access phase, the corresponding industry of service request is cannot be distinguished in base station
Service type cannot achieve the layering of language number.Support VoLTE user that can establish QCI5/QCI9 default bearing after RRC access, then
When user establishes QCI1 carrying, illustrate that the corresponding type of service of service request is VoLTE voice service, then triggering is based on industry
The alien frequencies of service type switches, and user equipment (UE) is switched to the second frequency range, utilizes the VoLTE of the second frequency range carrying user equipment (UE)
Voice service, and keep switching with frequency, realize the layering of language number.The type of service of the business to be requested next time after user's on-hook
It is unknown, then the resident strategy of Idle state can be consistent with resident strategy in the prior art after user's on-hook, do not do herein
It specifies.
In the alien frequencies switching based on type of service, what the corresponding trigger event of different-frequency measure can be established for user equipment (UE)
Highest priority QCI business allows to be switched to certain alien frequencies frequency point, and the corresponding stopping event of different-frequency measure can carry out for measurement GAP
3 seconds but without triggering switching；It can be A4 event that alien frequencies, which switches corresponding trigger event, and alien frequencies, which switches corresponding stopping event, to be
User equipment (UE) has interrupted the QCI business for allowing to switch.
In view of in data downloading or the business processions such as VoLTE voice communication, it is possible that current frequency range
Corresponding RSRP lower situation, in order to ensure that business can be effectively addressed, the present invention can also be carried out based on covering RSRP
Alien frequencies switching.The triggering alien frequencies switching in the corresponding RSRP of the current frequency range of appearance lower situation, will be in the lower frequency range of RSRP
User equipment switch in another frequency range, it is corresponding to continue the service request of user equipment that carrying switching comes by another frequency range
Business can specifically be realized by step S205 to step S209.
Whether step S205, the corresponding current reception power of the first frequency range of monitoring meet the first alien frequencies switching condition；If so,
Then follow the steps S206；If it is not, thening follow the steps S205.
It, can the first frequency range pair of real-time monitoring during using the big packet data services of the first frequency range carrying user equipment
Whether the current reception power answered meets the first alien frequencies switching condition.If monitoring the corresponding current reception power of the first frequency range
Meet the first alien frequencies switching condition, thens follow the steps S206；If monitoring that the corresponding current reception power of the first frequency range is not inconsistent
The first alien frequencies switching condition is closed, S205 is thened follow the steps, continues current reception power corresponding to the first frequency range and is monitored.
In order to avoid the resource of excessive big the second frequency range of bag data user occupancy, the big bag data user of strict control is needed
The second frequency range is occupied, can be increased by the alien frequencies handover event (such as using A5 event) of setting the first frequency range to the second frequency range
The switching difficulty of the second frequency range is switched to by the first frequency range, so that big packet data services, which are difficult to meet, switches to the different of the second frequency range
Frequency switching condition cuts the second frequency range to control big bag data user.It in the present invention, will be based on covering RSRP by the first frequency range
It switches to the alien frequencies switching condition met needed for the second frequency range and is defined as the first alien frequencies switching condition, it specifically, can be different by first
Frequency switching condition is set as the switching condition being extremely difficult to, such as can be set as currently receiving by the first alien frequencies switching condition
Power is lower than -110dBm (decibel milliwatt), if that the corresponding current reception power of the first frequency range is lower than -110dBm, explanation
The signal strength of first frequency range is poor, in this case, just executes step S206, the user equipment in the first frequency range is cut
The second frequency range is shifted to, the big packet data services of the second frequency range carrying user equipment are utilized.
User equipment is switched to the second frequency range by step S206, utilizes the service request of the second frequency range carrying user equipment
Corresponding business.
If monitoring to obtain the corresponding current reception power of the first frequency range through step S205 and meeting the first alien frequencies switching condition,
User equipment in first frequency range is switched into the second frequency range, the service request using the second frequency range carrying user equipment is corresponding
Business.Those skilled in the art can according to actual needs the quantity to the user equipment for switching to the second frequency range by the first frequency range into
Row setting, is not specifically limited herein.
During the VoLTE voice service for carrying user equipment using the second frequency range or small packet data services, it is
Preferably ensure the voice quality of VoLTE voice service, the present invention postpones alien frequencies and opens surveys, and increase is switched to by the second frequency range
The switching difficulty of first frequency range, so that VoLTE voice service is difficult to meet the alien frequencies switching condition for switching to the first frequency range, so that
It keeps switching with frequency in the second frequency range, promotes VoLTE user's perception.In the present invention, covering RSRP will be based on from the second frequency
Section switches to the alien frequencies switching condition met needed for the first frequency range and is defined as the second alien frequencies switching condition.
Step S207, judges whether current time reaches alien frequencies and open the survey time；If so, thening follow the steps S208；If it is not, then
Execute step S207.
Those skilled in the art can according to actual needs to alien frequencies open survey the time be configured, for example, alien frequencies can be opened to survey
Time is set as the 10th second corresponding time after user equipment is switched to the second frequency range by step S204.Specifically,
It can start timer after step S204 completes to switch to user equipment into the operation of the second frequency range, whether judge current time
Reach alien frequencies and opens the survey time.If current time, which reaches alien frequencies, opens the survey time, S208 is thened follow the steps；If current time does not reach
It is opened to alien frequencies and surveys the time, then continue to execute step S207.
Whether step S208, the corresponding current reception power of the second frequency range of monitoring meet the second alien frequencies switching condition；If so,
Then follow the steps S209；If it is not, thening follow the steps S208.
Step S207 judge to obtain current time reach alien frequencies open survey the time in the case where, the second frequency range of monitoring is corresponding
It is current to receive whether power meets the second alien frequencies switching condition.
In order to preferably ensure the voice quality of VoLTE voice service, excessive VoLTE voice service is avoided to move out second
Frequency range can increase the switching difficulty that the first frequency range is switched to by the second frequency range, and specifically, the second alien frequencies switching condition can be arranged
The switching condition being extremely difficult to for one, for example, the second alien frequencies switching condition can be set to currently receiving power lower than-
110dBm illustrates that the signal strength of the second frequency range compares if the corresponding current reception power of the second frequency range is lower than -110dBm
Difference just executes step S209, the user equipment in the second frequency range is switched to the first frequency range, utilizes first in this case
The VoLTE voice service of frequency range carrying user equipment and small packet data services.
User equipment is switched to the first frequency range by step S209, utilizes the service request of the first frequency range carrying user equipment
Corresponding business.
If monitoring to obtain the corresponding current reception power of the second frequency range through step S208 and meeting the second alien frequencies switching condition,
User equipment is switched into the first frequency range, utilizes the corresponding business of service request of the first frequency range carrying user equipment.This field
Technical staff can the quantity according to actual needs to the user equipment for switching to the first frequency range by the second frequency range be configured, herein
It is not specifically limited.
In the business processions such as data downloading or VoLTE voice communication, the present invention is realizing the same of language number layering
When, also alien frequencies switching can be carried out based on load balancing.Specifically, it can be realized by step S210 to step S213, wherein
Step S210 is not shown in Fig. 2 to step S213.
Step S210, whether the corresponding Physical Resource Block utilization rate of the first frequency range of monitoring is more than the first pre-determined threshold；If so,
Then follow the steps S211；If it is not, thening follow the steps S210.
It, can the first frequency range pair of real-time monitoring during using the big packet data services of the first frequency range carrying user equipment
Whether the Physical Resource Block utilization rate PRB answered is more than the first pre-determined threshold.If monitoring the corresponding physical resource of the first frequency range
Block utilization rate PRB is more than the first pre-determined threshold, thens follow the steps S211；If monitoring the corresponding Physical Resource Block of the first frequency range
Utilization rate PRB is less than the first pre-determined threshold, thens follow the steps S210, continues to utilize the corresponding Physical Resource Block of the first frequency range
Rate PRB is monitored.Wherein, the corresponding Physical Resource Block utilization rate PRB of the first frequency range in the present invention refers to cell-level
PRB。
For big bag data user, it can increase and the second frequency range is switched to by the first frequency range by the way that the first pre-determined threshold is arranged
Switching difficulty, cut the second frequency range to control big bag data user, the second frequency range made to be mainly used for carrying VoLTE voice service
With small packet data services.Specifically, 20% can be set by the first pre-determined threshold, if that the corresponding physics money of the first frequency range
Source block utilization rate PRB is more than 20%, thens follow the steps S211.
Step S211, the user equipment for selecting quantity to meet the first preset quantity from the first frequency range are used as first object
First object user equipment is switched to the second frequency range by family equipment, utilizes the industry of the second frequency range carrying first object user equipment
Corresponding business is requested in business.
If monitoring that the corresponding Physical Resource Block utilization rate of the first frequency range is more than the first pre-determined threshold, explanation through step S210
The heavier loads of first frequency range, then trigger load-balancing function, selects quantity to meet the first preset quantity from the first frequency range
User equipment switches to the second frequency range as first object user equipment, by first object user equipment, is held using the second frequency range
Carry the corresponding business of service request of first object user equipment.Those skilled in the art can be according to actual needs to selection user
The mode of equipment and the first preset quantity are configured.For example, being randomly chosen from the first frequency range using random algorithm
Quantity meets the user equipment of the first preset quantity.For another example, when setting cell maximum number of user amount for the first preset quantity
When 10%, it is assumed that cell maximum number of user amount is 1200, then 120 user equipmenies need to be selected from the first frequency range as the
One target UE.
Step S212, whether the corresponding Physical Resource Block utilization rate of the second frequency range of monitoring is more than the second pre-determined threshold；If so,
Then follow the steps S213；If it is not, thening follow the steps S212.
It, can during the VoLTE voice service for carrying user equipment using the second frequency range or small packet data services
Whether the corresponding Physical Resource Block utilization rate PRB of the second frequency range of real-time monitoring is more than the second pre-determined threshold.If monitoring second
The corresponding Physical Resource Block utilization rate PRB of frequency range is more than the second pre-determined threshold, thens follow the steps S213；If monitoring the second frequency
The corresponding Physical Resource Block utilization rate PRB of section is less than the second pre-determined threshold, thens follow the steps S212, continues to the second frequency range pair
The Physical Resource Block utilization rate PRB answered is monitored.Wherein, the corresponding Physical Resource Block utilization rate of the second frequency range in the present invention
PRB refers to the PRB of cell-level.
For VoLTE voice user and parcel data user, can be increased by the way that the second pre-determined threshold is arranged by the second frequency range
The switching difficulty for switching to the first frequency range, makes the first frequency range be mainly used for big packet data services.It specifically, can be by the second pre- gating
Limit is set as 20%, if that the corresponding Physical Resource Block utilization rate PRB of the second frequency range is more than 20%, thens follow the steps
S213。
Step S213, the user equipment for selecting quantity to meet the second preset quantity from the second frequency range are used as the second target
Second target UE is switched to the first frequency range by family equipment, and the industry of the second target UE is carried using the first frequency range
Corresponding business is requested in business.
If monitoring that the corresponding Physical Resource Block utilization rate of the second frequency range is more than the second pre-determined threshold, explanation through step S212
The heavier loads of second frequency range, then trigger load-balancing function, selects quantity to meet the second preset quantity from the second frequency range
User equipment switches to the first frequency range as the second target UE, by the second target UE, is held using the first frequency range
Carry the corresponding business of service request of the second target UE.Those skilled in the art can be according to actual needs to selection user
The mode of equipment and the second preset quantity are configured.For example, being randomly chosen from the second frequency range using random algorithm
Quantity meets the user equipment of the second preset quantity.For another example, when setting cell maximum number of user amount for the second preset quantity
When 10%, it is assumed that cell maximum number of user amount is 1200, then 120 user equipmenies need to be selected from the second frequency range as the
Two target UEs.
It can in order to verify the business delamination process provided by the invention for VoLTE voice service and data service
This method is applied to test in the different scenes such as road scene, indoor feeble field, high-speed rail scene, be assessed by row, applicant
The functional effect of language number layering.Wherein, the second frequency range shown in Fig. 1 b is utilized in road scene, indoor feeble field and high-speed rail scene
Carry VoLTE voice service and small packet data services, MOS points of discovery to be obviously improved, uplink packet loss and downlink packet loss
It is decreased obviously, to illustrate that VoLTE voice quality is obviously improved.
According to the business delamination process provided in this embodiment for VoLTE voice service and data service, pass through
Language number layered cooperative strategy, carries out layered shaping for VoLTE voice service and data service, carries big packet number using the first frequency range
According to business, VoLTE voice service lesser to RB demand and small packet data services are carried using the second frequency range, is not only realized pair
The pool of frequency range distributes, so that frequency range is fully used, and generates gain to voice in dimensions such as covering, interference, switchings,
So that carrying VoLTE voice service using the second frequency range, the beneficial effect that deployment is fast, interference is small, covering is excellent, has perceived can be obtained
Fruit；In the alien frequencies switching based on covering RSRP and load balancing, by the reasonable setting to switching condition, business has both been ensured
It can be effectively addressed, and efficiently avoid the resource of excessive big the second frequency range of bag data user occupancy, make the second frequency
Section is mainly used for carrying VoLTE voice service and small packet data services, has effectively ensured the voice matter of VoLTE voice service
Amount, keeps audio access more unimpeded, promotes VoLTE user's perception.
Fig. 3 shows the business layered shaping according to an embodiment of the present invention for VoLTE voice service and data service
The structural block diagram of device, as shown in figure 3, the device includes: receiving module 310, determining module 320 and frequency range switching module 330.
Receiving module 310 is suitable for: receiving the service request that user equipment is sent.
Determining module 320 is suitable for: according to service request, determining the corresponding type of service of service request.
Optionally it is determined that module 320 is further adapted for: if in service request including VoLTE call information, it is determined that business
Requesting corresponding type of service is VoLTE voice service；If including to request data package size and to number of request in service request
It is less than default size according to packet size, it is determined that the corresponding type of service of service request is small packet data services；If in service request
Including being greater than or equal to default size to request data package size and to request data package size, it is determined that service request is corresponding
Type of service is big packet data services.
Frequency range switching module 330 is suitable for: if type of service is big packet data services, user equipment being switched to the first frequency
Section utilizes the corresponding business of service request of the first frequency range carrying user equipment；If type of service be VoLTE voice service or
User equipment is then switched to the second frequency range by small packet data services, utilizes the service request pair of the second frequency range carrying user equipment
The business answered.
Optionally, the device further include: the first monitoring modular 340, suitable for utilizing the first frequency range carrying user equipment
In the case where the corresponding business of service request, whether the corresponding current reception power of the first frequency range of monitoring meets the switching of the first alien frequencies
Condition；If monitoring obtains the corresponding current reception power of the first frequency range and meets the first alien frequencies switching condition, frequency range switching is triggered
User equipment is switched to the second frequency range by frequency range switching module 330 by module 330, utilizes the second frequency range carrying user equipment
The corresponding business of service request.
Optionally, the first monitoring modular 340 is further adapted for: in the service request using the second frequency range carrying user equipment
In the case where corresponding business, whether the corresponding current reception power of the second frequency range of monitoring meets the second alien frequencies switching condition；If
Monitoring obtains the corresponding current reception power of the second frequency range and meets the second alien frequencies switching condition, then triggers frequency range switching module 330,
User equipment is switched into the first frequency range by frequency range switching module 330, utilizes the service request of the first frequency range carrying user equipment
Corresponding business.
Optionally, device further include: open and survey judgment module 350, suitable for utilizing the second frequency range carrying user equipment
In the case where the corresponding business of service request, judge whether current time reaches alien frequencies and open the survey time；First monitoring modular 340 into
One step is suitable for: obtaining current time and reaches alien frequencies and open to survey the time if opening and surveying the judgement of judgment module 350, it is corresponding to monitor the second frequency range
Current reception power whether meet the second alien frequencies switching condition.
Optionally, device further include: the second monitoring modular 360 is suitable for the corresponding Physical Resource Block of the first frequency range of monitoring
Whether utilization rate is more than the first pre-determined threshold；If so, selection quantity meets the user of the first preset quantity from the first frequency range
Equipment is as first object user equipment.In this case, frequency range switching module 330 is further adapted for: first object is used
Family equipment switches to the second frequency range, utilizes the corresponding business of service request of the second frequency range carrying first object user equipment.
Optionally, the second monitoring modular 360 is further adapted for: the corresponding Physical Resource Block utilization rate of the second frequency range of monitoring is
It is no more than the second pre-determined threshold；If so, selected from the second frequency range quantity meet the user equipment of the second preset quantity as
Second target UE.In this case, frequency range switching module 330 is further adapted for: the second target UE is cut
The first frequency range is shifted to, the corresponding business of service request of the second target UE is carried using the first frequency range.
According to the business layered shaping device provided in this embodiment for VoLTE voice service and data service, pass through
Language number layered cooperative strategy, carries out layered shaping for VoLTE voice service and data service, carries big packet number using the first frequency range
According to business, VoLTE voice service lesser to RB demand and small packet data services are carried using the second frequency range, is not only realized pair
The pool of frequency range distributes, so that frequency range is fully used, and generates gain to voice in dimensions such as covering, interference, switchings,
So that carrying VoLTE voice service using the second frequency range, the beneficial effect that deployment is fast, interference is small, covering is excellent, has perceived can be obtained
Fruit；In the alien frequencies switching based on covering RSRP and load balancing, by the reasonable setting to switching condition, business has both been ensured
It can be effectively addressed, and efficiently avoid the resource of excessive big the second frequency range of bag data user occupancy, make the second frequency
Section is mainly used for carrying VoLTE voice service and small packet data services, has effectively ensured the voice matter of VoLTE voice service
Amount, keeps audio access more unimpeded, promotes VoLTE user's perception.
The present invention also provides a kind of nonvolatile computer storage media, the computer storage medium is stored at least
One executable instruction, the computer executable instructions can be performed in above-mentioned any means embodiment and are directed to VoLTE voice service
With the business delamination process of data service.
Fig. 4 shows the structural schematic diagram of a kind of electronic equipment according to an embodiment of the present invention, the specific embodiment of the invention
The specific implementation of electronic equipment is not limited.
As shown, the electronic equipment may include: processor (processor), communication interface (Communications
Interface), memory (memory) and communication bus.
Wherein:
Processor, communication interface and memory complete mutual communication by communication bus.
Communication connects, for communicating with the network element of other equipment such as client or other servers etc..
Processor can specifically execute the above-mentioned business for VoLTE voice service and data service for executing program
Correlation step in delamination process embodiment.
Specifically, program may include program code, which includes computer operation instruction.
Processor may be central processor CPU or specific integrated circuit ASIC (Application Specific
Integrated Circuit), or be arranged to implement one or more integrated circuits of the embodiment of the present invention.Electronics is set
The standby one or more processors for including, can be same type of processor, such as one or more CPU；It is also possible to difference
The processor of type, such as one or more CPU and one or more ASIC.
Memory, for storing program.Memory may include high speed RAM memory, it is also possible to further include non-volatile
Memory (non-volatile memory), for example, at least a magnetic disk storage.
Program specifically can be used for so that processor, which executes in above-mentioned any means embodiment, is directed to VoLTE voice service
With the business delamination process of data service.The specific implementation of each step may refer to above-mentioned for VoLTE voice in program
Corresponding description in business and corresponding steps in the business layered shaping embodiment of data service and unit, this will not be repeated here.
It is apparent to those skilled in the art that for convenience and simplicity of description, the equipment of foregoing description and module
Specific work process can refer to corresponding processes in the foregoing method embodiment description, and details are not described herein.
Algorithm and display are not inherently related to any particular computer, virtual system, or other device provided herein.
Various general-purpose systems can also be used together with teachings based herein.As described above, it constructs required by this kind of system
Structure be obvious.In addition, the present invention is also not directed to any particular programming language.It should be understood that can use various
Programming language realizes summary of the invention described herein, and the description done above to language-specific is to disclose this hair
Bright preferred forms.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that implementation of the invention
Example can be practiced without these specific details.In some instances, well known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this specification.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of the various inventive aspects, In
Above in the description of exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the disclosed method should not be interpreted as reflecting the following intention: i.e. required to protect
Shield the present invention claims features more more than feature expressly recited in each claim.More precisely, such as right
As claim reflects, inventive aspect is all features less than single embodiment disclosed above.Therefore, it then follows tool
Thus claims of body embodiment are expressly incorporated in the specific embodiment, wherein each claim conduct itself
Separate embodiments of the invention.
Those skilled in the art will understand that can be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more devices different from this embodiment.It can be the module or list in embodiment
Member or component are combined into a module or unit or component, and furthermore they can be divided into multiple submodule or subelement or
Sub-component.Other than such feature and/or at least some of process or unit exclude each other, it can use any
Combination is to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so disclosed
All process or units of what method or apparatus are combined.Unless expressly stated otherwise, this specification is (including adjoint power
Benefit require, abstract and attached drawing) disclosed in each feature can carry out generation with an alternative feature that provides the same, equivalent, or similar purpose
It replaces.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is of the invention
Within the scope of and form different embodiments.For example, in detail in the claims, embodiment claimed it is one of any
Can in any combination mode come using.
Various component embodiments of the invention can be implemented in hardware, or to run on one or more processors
Software module realize, or be implemented in a combination thereof.It will be understood by those of skill in the art that can be used in practice
Microprocessor or digital signal processor (DSP) realize one of some or all components according to embodiments of the present invention
A little or repertoire.The present invention is also implemented as setting for executing some or all of method as described herein
Standby or program of device (for example, computer program and computer program product).It is such to realize that program of the invention deposit
Storage on a computer-readable medium, or may be in the form of one or more signals.Such signal can be from because of spy
It downloads and obtains on net website, be perhaps provided on the carrier signal or be provided in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and ability
Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between parentheses should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Element or step listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of multiple such
Element.The present invention can be by means of including the hardware of several different elements and being come by means of properly programmed computer real
It is existing.In the unit claims listing several devices, several in these devices can be through the same hardware branch
To embody.The use of word first, second, and third does not indicate any sequence.These words can be explained and be run after fame
Claim.
Claims (10)
1. a kind of business delamination process for VoLTE voice service and data service, which is characterized in that the method packet
It includes:
Receive the service request that user equipment is sent；
According to the service request, the corresponding type of service of the service request is determined；
If the type of service is big packet data services, the user equipment is switched into the first frequency range, utilizes the first frequency range
Carry the corresponding business of service request of the user equipment；If the type of service is VoLTE voice service or parcel number
According to business, then the user equipment is switched into the second frequency range, the service request of the user equipment is carried using the second frequency range
Corresponding business.
2. determining that the business is asked the method according to claim 1, wherein described according to the service request
The corresponding type of service is asked to further comprise:
If in the service request including VoLTE call information, it is determined that the corresponding type of service of the service request is VoLTE
Voice service；
If include in the service request to request data package size and it is described be less than default size to request data package size,
Determine that the corresponding type of service of the service request is small packet data services；
If include in the service request to request data package size and it is described be greater than or equal to request data package size it is default
Size, it is determined that the corresponding type of service of the service request is big packet data services.
3. the method according to claim 1, wherein the user equipment is switched to the first frequency range described,
After the corresponding business of service request for carrying the user equipment using the first frequency range, the method also includes:
Monitor whether the corresponding current reception power of the first frequency range meets the first alien frequencies switching condition；
If so, the user equipment is switched to the second frequency range, asked using the business that the second frequency range carries the user equipment
Seek corresponding business.
4. the method according to claim 1, wherein the user equipment is switched to the second frequency range described,
After the corresponding business of service request for carrying the user equipment using the second frequency range, the method also includes: monitoring second
Whether the corresponding current reception power of frequency range meets the second alien frequencies switching condition；
If so, the user equipment is switched to the first frequency range, asked using the business that the first frequency range carries the user equipment
Seek corresponding business.
5. according to the method described in claim 4, it is characterized in that, in the corresponding current reception power of the second frequency range of the monitoring
Before whether meeting the second alien frequencies switching condition, the method also includes:
Judge whether current time reaches alien frequencies and open the survey time；
Whether the corresponding current reception power of the second frequency range of the monitoring meets the second alien frequencies switching condition specifically: if judging
Reach alien frequencies to current time and open and survey the time, then monitors the corresponding current reception power of the second frequency range and whether meet the second alien frequencies and cut
Change condition.
6. method according to claim 1-5, which is characterized in that the method also includes:
The corresponding Physical Resource Block utilization rate of the first frequency range is monitored whether more than the first pre-determined threshold；
If so, the user equipment for selecting quantity to meet the first preset quantity from the first frequency range is set as first object user
It is standby, the first object user equipment is switched into the second frequency range, carries the first object user equipment using the second frequency range
The corresponding business of service request.
7. method according to claim 1-5, which is characterized in that the method also includes:
The corresponding Physical Resource Block utilization rate of the second frequency range is monitored whether more than the second pre-determined threshold；
If so, the user equipment for selecting quantity to meet the second preset quantity from the second frequency range is set as the second target user
It is standby, second target UE is switched into the first frequency range, carries second target UE using the first frequency range
The corresponding business of service request.
8. a kind of business layered shaping device for VoLTE voice service and data service, which is characterized in that described device packet
It includes:
Receiving module, the service request sent suitable for receiving user equipment；
Determining module is suitable for determining the corresponding type of service of the service request according to the service request；
The user equipment is switched to first if being suitable for the type of service is big packet data services by frequency range switching module
Frequency range, the corresponding business of service request for carrying the user equipment using the first frequency range；If the type of service is VoLTE language
Sound business or small packet data services, then switch to the second frequency range for the user equipment, carries the use using the second frequency range
The corresponding business of the service request of family equipment.
9. a kind of electronic equipment, comprising: processor, memory, communication interface and communication bus, the processor, the storage
Device and the communication interface complete mutual communication by the communication bus；
The memory executes the processor as right is wanted for storing an at least executable instruction, the executable instruction
Ask the corresponding operation of business delamination process that VoLTE voice service and data service are directed to described in any one of 1-7.
10. a kind of computer storage medium, an at least executable instruction, the executable instruction are stored in the storage medium
Execute processor as of any of claims 1-7 for the layering of the business of VoLTE voice service and data service
The corresponding operation of processing method.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112825583A (en) * | 2019-11-20 | 2021-05-21 | 中国电信股份有限公司 | Method and device for positioning service quality problem and communication system |
| CN113038546A (en) * | 2019-12-24 | 2021-06-25 | ***通信集团浙江有限公司 | Cell switching method and device and computing equipment |
| CN114286396A (en) * | 2020-09-27 | 2022-04-05 | ***通信集团浙江有限公司 | Cell switching method, device, computing equipment and computer storage medium |
| CN114980234A (en) * | 2022-06-24 | 2022-08-30 | 中国联合网络通信集团有限公司 | Pilot frequency switching method, device and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015069076A1 (en) * | 2013-11-08 | 2015-05-14 | 삼성전자 주식회사 | Method for continuously providing emergency call service through packet network |
| CN106804049A (en) * | 2015-11-26 | 2017-06-06 | 大唐移动通信设备有限公司 | A kind of different-system switching method and device |
| CN108260172A (en) * | 2016-12-29 | 2018-07-06 | 大唐移动通信设备有限公司 | A kind of method and apparatus for adjusting the specified frequency point cell of terminal access |
| CN108541022A (en) * | 2017-03-02 | 2018-09-14 | ***通信有限公司研究院 | A kind of method and device for realizing Network Load Balance |
| CN108834223A (en) * | 2018-06-22 | 2018-11-16 | 中国联合网络通信集团有限公司 | A kind of method and electronic equipment switching WiFi frequency range |
-
2019
- 2019-06-19 CN CN201910533579.0A patent/CN110392393B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015069076A1 (en) * | 2013-11-08 | 2015-05-14 | 삼성전자 주식회사 | Method for continuously providing emergency call service through packet network |
| CN106804049A (en) * | 2015-11-26 | 2017-06-06 | 大唐移动通信设备有限公司 | A kind of different-system switching method and device |
| CN108260172A (en) * | 2016-12-29 | 2018-07-06 | 大唐移动通信设备有限公司 | A kind of method and apparatus for adjusting the specified frequency point cell of terminal access |
| CN108541022A (en) * | 2017-03-02 | 2018-09-14 | ***通信有限公司研究院 | A kind of method and device for realizing Network Load Balance |
| CN108834223A (en) * | 2018-06-22 | 2018-11-16 | 中国联合网络通信集团有限公司 | A kind of method and electronic equipment switching WiFi frequency range |
Non-Patent Citations (3)
| Title |
|---|
| 张砚寒: "基于业务的语音和数据分层策略", 《电信工程技术与标准化》 * |
| 李丽琴等: "一种基于VoLTE语音质量的异频切换方法研究", 《电信工程技术与标准化》 * |
| 金岩华等: "基于业务切换的双频网VoLTE策略研究", 《江苏科技信息》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112825583A (en) * | 2019-11-20 | 2021-05-21 | 中国电信股份有限公司 | Method and device for positioning service quality problem and communication system |
| CN113038546A (en) * | 2019-12-24 | 2021-06-25 | ***通信集团浙江有限公司 | Cell switching method and device and computing equipment |
| CN114286396A (en) * | 2020-09-27 | 2022-04-05 | ***通信集团浙江有限公司 | Cell switching method, device, computing equipment and computer storage medium |
| CN114286396B (en) * | 2020-09-27 | 2023-09-19 | ***通信集团浙江有限公司 | Cell switching method, device, computing equipment and computer storage medium |
| CN114980234A (en) * | 2022-06-24 | 2022-08-30 | 中国联合网络通信集团有限公司 | Pilot frequency switching method, device and storage medium |
| CN114980234B (en) * | 2022-06-24 | 2024-02-06 | 中国联合网络通信集团有限公司 | Different frequency switching method, device and storage medium |
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