CN108260177A - A kind of serving cell switching method and base station based on type of service - Google Patents
A kind of serving cell switching method and base station based on type of service Download PDFInfo
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- CN108260177A CN108260177A CN201611234279.5A CN201611234279A CN108260177A CN 108260177 A CN108260177 A CN 108260177A CN 201611234279 A CN201611234279 A CN 201611234279A CN 108260177 A CN108260177 A CN 108260177A
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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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Abstract
The present invention discloses a kind of serving cell switching method based on type of service and base station, method include：ENB receives the measurement report that terminal is sent, and measurement report includes serving cell signal intensity；ENB checks whether the serving cell signal intensity is less than the corresponding handoff threshold of terminal present type of service；If reaching, eNB sends RRC connection reconfigurations to the terminal and puts message, so that the access information that terminal is put according to RRC connection reconfigurations in message accesses Target cell；Wherein, the corresponding handoff threshold of the present type of service is obtains type of service, and the thresholding determined according to the type of service in call setup flows of the eNB according to terminal.The method of the present invention sets different handoff thresholds, and then ensure the optimization switching of various businesses type, promotes user experience for different types of service.
Description
Technical field
The present invention relates to the communication technologys, and in particular to a kind of serving cell switching method and base station based on type of service.
Background technology
At present, it is limited by MPS process area, when terminal is gradually distance from current service cell, in order to ensure that terminal exists
The continuity of business in wireless network, terminal are allowed for disconnecting current service cell and be connected in Target cell, at this moment
Handoff functionality is used.Switching is one of basic function important in wireless communication, and any business is all inevitably used
This function.Therefore the Optimization Work for switching is always the emphasis of network optimization staff, and network operator is also by cutting
The test result (seine) of indices carrys out assessment equipment vendor product when changing.
The judgement of switching is carried out according to the measured cell signal quality that terminal reports.Such as it is adopted in current network
A3 events, i.e. Target cell signal quality are higher than one thresholding of this cell and maintain a period of time that will trigger.Such as Fig. 1 institutes
Show, terminal can continue to carry out serving cell and nearby region measurement after network is accessed, when terminal meets Mn+Ofn+Ocn-Hys ＞ Ms+
Ofs+Ocs+Off and maintain a period of time (Time to Trigger) reporting measurement reports afterwards.Wherein, Mn is adjacent cell measurement
Value, Ofn are adjacent cell frequency shift (FS), Ocn is adjacent cell biasing, Hys is hysteresis, Ms is serving cell measured value, Ofs is clothes
The offset of business cell frequency, Ocs are serving cell biasing, Off is bias.
Cell-of-origin, that is, serving cell (switches after measurement report is received to Target cell application resource and configuration information in standing
If for station in interaction, between standing switching can use X2 mouthful or S1 mouthful, preferentially use X2 mouthfuls).Target cell is by the receiving of terminal
Information and other configurations information feed back to cell-of-origin.The receiving information and configuration information of Target cell are issued into terminal, informed
End objectives cell is ready for terminal access.Terminal is connect after receiving switching command using the access information in reallocation message
Enter, Target cell access response completes after receiving this order it is believed that accessing.
Existing hand-off process does not differentiate between type of service, as long as terminal reporting measurement reports, meets measurement request i.e.
It is changeable.However, the Qos (Quality of Service, service quality) of various businesses type is different in practical applications
, at present using the optimal design-aside of compromise.This set can cause the business of two kinds of different Q os requirements that can not all reach most
Satisfied handoff procedure and result.
Invention content
In view of the above problems, the present invention proposes the one kind for overcoming the above problem or solving the above problems at least partly
Serving cell switching method and base station based on type of service.
For this purpose, in a first aspect, the present invention proposes a kind of serving cell switching method based on type of service, including：
ENB (evolved Node B, enhanced base station) receives the measurement report that terminal is sent, and the measurement report includes
Serving cell signal intensity；
The eNB checks whether the serving cell signal intensity is less than the corresponding switching door of the terminal present type of service
Limit；
If reaching, the eNB sends RRC (Radio Resource Control, radio resource control to the terminal
System) connection reconfiguration puts message, so that the access information access target that the terminal is put according to the RRC connection reconfigurations in message is small
Area；
Wherein, the corresponding handoff threshold of the present type of service is in call setup flows of the eNB according to terminal
Obtain type of service, and the thresholding determined according to the type of service.
Optionally, before the eNB receives the step of measurement report that terminal is sent, the method further includes：
The eNB obtains the type of service of the terminal according to the currently used business of terminal；
The eNB searches the switching door for belonging to the type of service according to the type of service from preset handoff threshold list
Limit.
Optionally, the type of service is GBR (Guaranteed Bit Rate, guaranteed rate) business, NonGBR
(Non-Guaranteed Bit Rate, non-guaranteed rate) business or QCI1 (QoS Class Identifier 1, QoS grades
Identify 1) business.
Optionally, the step of eNB obtains the type of service of the terminal according to the currently used business of terminal, including：
The eNB receives the RRC connection request that terminal is sent, and is interacted according to RRC connection request with core network element and be
The terminal establish carrying and
The eNB obtains the type of service of the terminal in carrying flow is established.
Optionally, the eNB is searched according to the type of service from preset handoff threshold list belongs to the type of service
Handoff threshold the step of, including：
The eNB is searched according to the priority of the type of service from preset handoff threshold list belongs to the type of service
The handoff threshold of priority.
Second aspect, the present invention provide a kind of base station, including：
Receiving unit, for receiving the measurement report of terminal transmission, the measurement report includes serving cell signal intensity；
Judging unit, for checking it is corresponding whether the serving cell signal intensity is less than the terminal present type of service
Handoff threshold；
Transmitting element, for when judging unit determines that the serving cell signal intensity reaches handoff threshold, to described
Terminal sends RRC connection reconfigurations and puts message, is connect so that the terminal puts the access information in message according to the RRC connection reconfigurations
Enter Target cell；
Wherein, the corresponding handoff threshold of the present type of service is obtains in call setup flow of the base station according to terminal
Type of service, and the thresholding determined according to the type of service.
Optionally, the base station further includes：
Type of service acquiring unit, for receiving unit receive measurement report before, according to the currently used industry of terminal
Business obtains the type of service of the terminal；
Handoff threshold searching unit, for according to the type of service that type of service acquiring unit obtains from preset switching door
The handoff threshold for belonging to the type of service is searched in limit list.
Optionally, the type of service is GBR traffic, NonGBR business or QCI1 business.
Optionally, the type of service acquiring unit, is specifically used for：
The RRC connection request that terminal is sent is received, and is interacted with core network element according to RRC connection request and is built for the terminal
Vertical carrying and the type of service that the terminal is obtained in carrying flow is established.
Optionally, the handoff threshold searching unit, is specifically used for：
It is searched from preset handoff threshold list according to the priority of the type of service and belongs to the type of service priority
Handoff threshold.
As shown from the above technical solution, serving cell switching method and base station proposed by the present invention based on type of service,
When the serving cell signal intensity in measurement report is judged, using the corresponding switching of terminal present type of service
Thresholding is judged, to determine whether present terminal needs the switching of progress serving cell, it is not of the same trade or business thus can be directed to terminal
The switching result that service type is optimal promotes user experience.
Description of the drawings
Fig. 1 is the condition schematic diagram that terminal switches to serving cell from cell-of-origin in the prior art；
Fig. 2 and Fig. 3 is respectively the stream for the serving cell switching method based on type of service that one embodiment of the invention provides
Journey schematic diagram；
Fig. 4 is the structure diagram of base station that one embodiment of the invention provides.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment be the present invention
Part of the embodiment, instead of all the embodiments.
In the prior art, as long as terminal reporting measurement reports, it is i.e. changeable to meet measurement request.It is but in fact, different
The Qos of type of service is different, that is to say, that for the requirements such as the fluency of business, packet loss is kept to be not quite similar.Such as：
It is to allow have certain delay, but be not allow for packet loss for common PS business；VoLTE (Voice over LTE) business for when
Prolong sensitivity, but allow have certain packet loss.So in order to keep the QoS of business, the opportunity of switching is with regard to critically important.It is for example, right
In the business that delay requirement is stringent, if just starting to switch when cell-of-origin signal is very poor, then can not just ensure to switch
The time delay of this period.And for the insensitive business of time delay, switching result in this case is acceptable.In this way
If two kinds of business all using identical handoff threshold, can only trade off consider or yield to the business of delay sensitive into
The thresholding of row setting switching.The optimal design-aside of compromise can cause the business of two kinds of different requirements that can not all reach most satisfied switching
Process and result.
At present, in TD-LTE system, the optimization of switching is a heavy and long-term job, wherein with VoLTE
The expansion of deployment, the switching of VoLTE is also one of important process.Due to the characteristics of VoLTE in itself, the requirement ratio for switching
It is higher.The situation of the reduction of MoS values, voice latency or even handover failure is susceptible to if optimization is bad, in handoff procedure.
By treating different Q CI, such as the side of VoLTE and the handoff threshold of common PS user with a certain discrimination in the embodiment of the present invention
Method reduces and the reduction of MoS values occurs for wireless environment requirement higher VoLTE switching, and delay increases or handover failure
Probability.
Fig. 2 shows the flow of the serving cell switching method based on the type of service signals that one embodiment of the invention provides
Figure, as shown in Fig. 2, the method for the present embodiment is as described below.
201st, eNB receives the measurement report that terminal is sent, and the measurement report includes serving cell signal intensity.
It should be noted that the measurement report of the present embodiment can be phase with the measurement report that arbitrary terminal is sent in the prior art
With, the present embodiment is not limited thereof.To better illustrate following step, illustrate that measurement report includes clothes in this step
Business cell signal strength.
202nd, eNB checks whether the serving cell signal intensity is less than the corresponding switching door of the terminal present type of service
Limit if reaching, performs step 203, otherwise, repeats the above steps 201.
In the present embodiment, the corresponding handoff threshold section of present type of service is in call setup flows of the eNB according to terminal
Obtain type of service, and the thresholding determined according to the type of service.
If the 203, reaching, the eNB to the terminal send RRC connection reconfigurations put message so that the terminal according to
The RRC connection reconfigurations put the access information access Target cell in message.
Target cell is carried in RRC connection reconfigurations put message to the receiving information of terminal and other configurations information,
And then inform that end objectives cell is ready for terminal access, reallocation message (RRC Connection Reconfiguration)
In comprising Target cell measurement control.
In addition, the data cached of terminal traffic is moved to Target cell by cell-of-origin.Terminal uses weight after receiving switching command
It is accessed with the access information in message.Target cell access response, completes, then after receiving this order it is believed that accessing
Terminal sends out re-matching on rrc layer and completes message (RRC Connect Reconfiguration complete).
It will be appreciated that the eNB in the present embodiment, after terminal transmission RRC connection reconfigurations put message, terminal is according to this
RRC connection reconfigurations, which put message access Target cell, to be existing flow, and the present embodiment is not changed it, can join at this
See existing switching flow.
Primarily directed to different types of service in the present embodiment, different handoff thresholds is set, and then ensures various industry
The optimization switching of service type, promotes user experience.
Optionally, before step 201 shown in Fig. 2, the method further includes following steps 200 and step 200a,
As shown in Figure 3.
200th, eNB obtains the type of service of the terminal according to the currently used business of terminal.
For example, eNB receives the RRC connection request that terminal is sent, and interacted according to RRC connection request with core network element and be
The terminal establishes the type of service that carrying and the eNB obtain the terminal in carrying flow is established.
Namely exist, terminal measures (such as A1, A2, A3 are measured) when opening, and eNB can carry out the Qos of the terminal in advance
Confirmation, acquisition type of service as above.
200a, eNB search the switching for belonging to the type of service according to the type of service from preset handoff threshold list
Thresholding.
Further, eNB can be searched according to the priority of the type of service from preset handoff threshold list belongs to this
The handoff threshold of type of service priority.As shown in following table one.
Table one
| Serving cell signal intensity | QCI1 | GBR | NonGBR |
| -109 | |||
| -108 | |||
| -107 | |||
| -106 | Low priority | ||
| -105 | |||
| -104 | Low priority | Middle priority | |
| -103 | |||
| -102 | Low priority | Middle priority | High priority |
| -101 | |||
| -100 | Middle priority | High priority | |
| -99 | |||
| -98 | High priority | ||
| -97 | |||
| -96 | |||
| -95 |
The type of service only illustrated in the present embodiment can be GBR traffic, NonGBR business or QCI1 business.In practical application
In, it can be adjusted according to actual demand, the present embodiment is not limited thereof.
That is, the business of QoS different in the present embodiment can have different handoff thresholds.Such as one example of upper table
Different QoS, the handoff threshold of different priorities.
That is, for the business of delay sensitive, handoff threshold can be set it is slightly higher, in this way in cell-of-origin, that is, serving cell
Also there can be relatively good channel quality when cutting out, it will not this makes it possible to the time delay and MOS values for ensureing QCI1 business
Deterioration is very big, also just improves user's perception.
Ensure different business class when reaching switching by the way that the handoff threshold of setting different Q CI can be distinguished in the present embodiment
The purpose of type QOS.For this purpose, the switching time of various different Q CI business can be diverged to, prevent from largely using different service types
User concentrate and switch in the same time, such as public transport, railway or crowded place, so as to certain journey
The instantaneous burden of system is reduced on degree.
Optionally, eNB can also store the handoff threshold of above-mentioned type of service, to receive measurement in step 201
After report, serving cell signal intensity and the handoff threshold are compared.
The serving cell switching method based on type of service of the present embodiment, in the serving cell letter in measurement report
When number intensity is judged, judged using the corresponding handoff threshold of terminal present type of service, so as to determine it is current eventually
Whether end needs to carry out the switching of serving cell, thus can be directed to the switching result that terminal different service types are optimal, carry
Rise user experience.
Fig. 4 shows the structure diagram for the base station that one embodiment of the invention provides, as shown in figure 4, the base of the present embodiment
Station includes：Receiving unit 41, judging unit 42 and transmitting element 43；
Wherein, receiving unit 41 is used to receive the measurement report of terminal transmission, and the measurement report is believed including serving cell
Number intensity；
Judging unit 42 corresponds to for checking whether the serving cell signal intensity is less than the terminal present type of service
Handoff threshold；
Transmitting element 43 is used for when judging unit determines that the serving cell signal intensity reaches handoff threshold, to described
Terminal sends RRC connection reconfigurations and puts message, is connect so that the terminal puts the access information in message according to the RRC connection reconfigurations
Enter Target cell；
Wherein, the corresponding handoff threshold of the present type of service is obtains in call setup flow of the base station according to terminal
Type of service, and the thresholding determined according to the type of service.
Optionally, above-mentioned base station shown in Fig. 4 may also include following type of service acquiring units 40 and handoff threshold is looked into
Look for unit 40a；
The type of service acquiring unit 40 is used for before receiving unit receives measurement report, currently used according to terminal
Business obtains the type of service of the terminal；
For example, the RRC connection request that terminal is sent is received, and interacted with core network element to be somebody's turn to do according to RRC connection request
Terminal establishes carrying and the type of service of the terminal is obtained in carrying flow is established；
Handoff threshold searching unit 40a is used for according to the type of service that type of service acquiring unit obtains from preset switching
The handoff threshold for belonging to the type of service is searched in thresholding list.
Further, handoff threshold searching unit 40a can be according to the priority of the type of service from preset switching door
The handoff threshold for belonging to the type of service priority is searched in limit list.
For example, above-mentioned type of service can be GBR traffic, NonGBR business or QCI1 business.
The base station of the present embodiment can perform above-mentioned Fig. 2 and method shown in Fig. 3, is no longer described in detail referring to above-mentioned record, at this.
Particularly, the base station of the present embodiment increases the setting for having the handoff threshold for different QoS in configuration.For
This, leads to difficulty on subsequent modification after preventing the base station from increasing quantity of parameters, can increase switch on the base station, as opened
Even if it closes with above-mentioned type of service acquiring unit 40 and handoff threshold searching unit 40a；It turns off the switch, then without using service class
Type acquiring unit 40 and handoff threshold searching unit 40a and the existing acquiescence switching mode of use.
The base station of the present embodiment can rationally be adjusted when realizing terminal switching according to type of service, and then is promoted and used
Family usage experience.
It will be appreciated by those of skill in the art that although some embodiments described herein include being wrapped in other embodiments
The certain features rather than other feature included, but the combination of the feature of different embodiment mean in the scope of the present invention it
It is interior and form different embodiments.
It will be understood by those skilled in the art that each step in embodiment can with hardware realization or at one or
The software module run on the multiple processors of person is realized or is realized with combination thereof.Those skilled in the art should manage
Solution, can realize according to embodiments of the present invention one using microprocessor or digital signal processor (DSP) in practice
The some or all functions of a little or whole components.The present invention is also implemented as performing method as described herein
Some or all equipment or program of device (for example, computer program and computer program product).
Although being described in conjunction with the accompanying embodiments of the present invention, those skilled in the art can not depart from this hair
Various modifications and variations are made in the case of bright spirit and scope, such modifications and variations are each fallen within by appended claims
Within limited range.
Claims (10)
1. a kind of serving cell switching method based on type of service, which is characterized in that including：
ENB receives the measurement report that terminal is sent, and the measurement report includes serving cell signal intensity；
The eNB checks whether the serving cell signal intensity is less than the corresponding handoff threshold of terminal present type of service；
If reaching, the eNB sends RRC connection reconfigurations to the terminal and puts message, so that the terminal connects according to the RRC
Connect the access information access Target cell in reconfiguration message；
Wherein, the corresponding handoff threshold of the present type of service is obtains in call setup flows of the eNB according to terminal
Type of service, and the thresholding determined according to the type of service.
2. the according to the method described in claim 1, it is characterized in that, the step of eNB receives the measurement report that terminal is sent
Before, the method further includes：
The eNB obtains the type of service of the terminal according to the currently used business of terminal；
The eNB searches the handoff threshold for belonging to the type of service according to the type of service from preset handoff threshold list.
3. according to the method described in claim 2, it is characterized in that, the type of service for GBR traffic, NonGBR business or
QCI1 business.
4. according to the method described in claim 2, it is characterized in that, the eNB should according to the currently used business acquisition of terminal
The step of type of service of terminal, including：
The eNB receives the RRC connection request that terminal is sent, and is interacted according to RRC connection request with core network element as the end
End establish carrying and
The eNB obtains the type of service of the terminal in carrying flow is established.
5. according to the method described in claim 2, it is characterized in that, the eNB according to the type of service from preset switching door
The step of belonging to the handoff threshold of the type of service is searched in limit list, including：
The eNB searches from preset handoff threshold list that belong to the type of service preferential according to the priority of the type of service
The handoff threshold of grade.
6. a kind of base station, which is characterized in that including：
Receiving unit, for receiving the measurement report of terminal transmission, the measurement report includes serving cell signal intensity；
Judging unit, for checking whether the serving cell signal intensity is less than the corresponding switching of terminal present type of service
Thresholding；
Transmitting element, for when judging unit determines that the serving cell signal intensity reaches handoff threshold, to the terminal
It sends RRC connection reconfigurations and puts message, so that the access information that the terminal is put according to the RRC connection reconfigurations in message accesses mesh
Mark cell；
Wherein, the corresponding handoff threshold of the present type of service is obtains business in call setup flow of the base station according to terminal
Type, and the thresholding determined according to the type of service.
7. base station according to claim 6, which is characterized in that the base station further includes：
Type of service acquiring unit, for before receiving unit receives measurement report, being obtained according to the business that terminal is currently used
Take the type of service of the terminal；
Handoff threshold searching unit, for being arranged according to the type of service that type of service acquiring unit obtains from preset handoff threshold
The handoff threshold for belonging to the type of service is searched in table.
8. base station according to claim 7, which is characterized in that the type of service for GBR traffic, NonGBR business or
QCI1 business.
9. base station according to claim 7, which is characterized in that the type of service acquiring unit is specifically used for：
The RRC connection request that terminal is sent is received, and is interacted with core network element according to RRC connection request and is held for terminal foundation
Carry and obtained in carrying flow is established the type of service of the terminal.
10. base station according to claim 7, which is characterized in that the handoff threshold searching unit is specifically used for：
It is searched from preset handoff threshold list according to the priority of the type of service and belongs to cutting for the type of service priority
Change thresholding.
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| WO2020098268A1 (en) * | 2018-11-12 | 2020-05-22 | 中兴通讯股份有限公司 | Control method and system for antenna array |
| CN111836325A (en) * | 2019-04-18 | 2020-10-27 | 华为技术有限公司 | Cell switching method and device |
| CN112543490A (en) * | 2020-11-24 | 2021-03-23 | 上海擎昆信息科技有限公司 | Method and device for user equipment admission and method and device for user equipment switching |
| CN114286396A (en) * | 2020-09-27 | 2022-04-05 | 中国移动通信集团浙江有限公司 | Cell switching method, device, computing equipment and computer storage medium |
| CN116801364A (en) * | 2023-08-22 | 2023-09-22 | Tcl通讯科技（成都）有限公司 | Cell measurement method, device, storage medium and terminal |
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