CN102761827B - Method for ensuring eMBMS service continuity in energy-saving scenario - Google Patents
Method for ensuring eMBMS service continuity in energy-saving scenario Download PDFInfo
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- CN102761827B CN102761827B CN201110105950.7A CN201110105950A CN102761827B CN 102761827 B CN102761827 B CN 102761827B CN 201110105950 A CN201110105950 A CN 201110105950A CN 102761827 B CN102761827 B CN 102761827B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a method for ensuring eMBMS (Multimedia Broadcast Multicast Service) service continuity in an energy-saving scenario. The method comprises the steps as follows: step 1, in the energy-saving scenario, when an energy-saving community meets the triggering condition of energy saving, the energy-saving community broadcasts indication information that the energy-saving community be closed soon to UE (User Experience) in a current service scope through an RRC interface; step 2, in the energy-saving community, UE in an RRC (Radio Resource Control)_IDLE state and in an MBSFN mode currently to receive eMBMS service pays attention to the indication information; and steps 3, after obtaining the indication information that the energy-saving community will be closed, the UE selects a target reselection community at the right time according to the content of the indication information, then, the UE obtaining the indication information judges whether the target reselection community supports the eMBMS service continuity; and if not, the UE informs the target reselection community to try to deploy the eMBMS service so as to meet the requirements for the eMBMS service continuity. The method of the invention can better ensure the eMBMS service continuity of the UE in an RRC_IDLE state in an energy-saving scenario through systematically.
Description
Technical field
The invention belongs to wireless communication technology field, is related under a kind of energy-conservation scene ensure the side of eMBMS service continuities
Method.
Background technology
Third generation partner program (3rd Generation Partnership Project, 3GPP) is drawn in R6 versions
Multimedia broadcast/group broadcast service (Multimedia Broadcast Multicast Service, MBMS) characteristic is entered, has realized
Transmit a kind of point-to-multipoint business of data simultaneously from data source to multiple users in particular range so that Internet resources are obtained
It is shared, so as to be embodied as there is in a large number the user of same requirements while providing multimedia service with less resource.In LTE network
Under framework, MBMS realizes that framework and mode all there occurs some changes in carrying aspect, before we are for difference
MBMS carries realization and is called eMBMS.
An important change is the transmission concept for introducing MBSFN in eMBMS, i.e., in the same time with identical
Frequency synchronizes transmission in multiple cells, and using this load mode frequency resource can be saved, while the diversity effect brought
Fruit can strengthen the reliability of reception and improve the effect for covering.Wherein, MBSFN regions (MBSFN Area) is referred to and realized
One group of set of cells of MBSFN transmission, it is understood that be the least unit of eMBMS business transmission.Energy-conservation (Energy
Saving, ES) it is a characteristic that 3GPP is introduced in R9, it is therefore an objective to it is as far as possible real in the case where ensureing that network performance is unaffected
Existing network energy consumption matching therebetween with network service traffic, and then reach energy-conservation and reduction operator maintenance cost
Purpose.Energy-conservation is in mono- important application scene of R9：In stratification cell (the Hierarchical Cell of inter-eNodeB
Structure, HCS) cover under, there are two kinds of cells：A kind of macro cells for being to provide basic covering, this kind of cell is to prohibit
Only implement energy-conservation；Another kind is to provide the Micro-cell that enhancement mode is covered in hot zones or Special geographical position, at this
Energy-saving cell is also referred to as in invention, i.e., when this kind of cell implements to close to reach section under what conditions if can making decisions on one's own
Can purpose.
For eMBMS capable UE, it also can be in rrc-idle state to receive eMBMS services.
In current Energy Saving flow process, the UE under RRC_CONNECTED states, the i.e. service to this part UE are only focused on and have connected
Continuous property considers and ensures in UE switching flows；Currently receiving without considering in RRC_IDLE states and
The service continuity problem of the UE of eMBMS services.
If the problems referred to above do not take in, to being in RRC_IDLE states and currently receiving under energy-conservation scene
For the UE of eMBMS services, the seriality of its service possibly cannot be effectively guaranteed；Further compromise the Service Quality of user
Amount experience.
The content of the invention
The technical problem to be solved is：The side that eMBMS service continuities are ensured under a kind of energy-conservation scene is provided
Method, the method can meet the demand of the eMBMS service continuities of the UE in RRC_IDLE states.
To solve above-mentioned technical problem, the present invention is adopted the following technical scheme that.
A kind of method that eMBMS service continuities are ensured under energy-conservation scene, comprises the following steps：
Step one, under energy-conservation scene, after energy-saving cell meets triggering implements the condition of energy-conservation, the energy-saving cell leads to
Cross RRC interfaces and the configured information that itself will implement to close is broadcasted to the UE in the range of current service；
Step 2, in the energy-saving cell, in RRC_IDLE states and presently, there are and just received in MBSFN modes
The UE of eMBMS services pays close attention to the configured information；
Step 3, the UE obtains the energy-saving cell will be implemented after the configured information closed, according to configured information
Content completes at the right time the selection of target re-selecting cell；Then the UE for obtaining configured information judges the target
Whether re-selecting cell can support the seriality that itself eMBMS is serviced, if can not support, notify the target re-selecting cell
Dispose eMBMS services in advance with best effort, the seriality serviced to meet the eMBMS to itself is required.
Used as a preferred embodiment of the present invention, the configured information includes the time field for implementing to close
Cell identity information ECGI that SwitchoffOngoingTime and enforcement are closed；The configured information is generally optional, i.e., such as
Fruit is present, then illustrate that cell will be implemented to close；Implement the time field closed in the configured information
SwitchoffOngoingTime is optional, i.e., how long can implement afterwards to close if it is present representing estimated, unit of time
For the second；If it does not, explanation is implemented to close at once at once or approximately；The cell ID that enforcement in the configured information is closed
Information ECGI is optional, if that is, broadcast domain is single cell, ECGI is without the need for carrying；If broadcast domain is logically one little
Area gathers, then need the ECGI for carrying cell.
Used as another kind of preferred version of the present invention, in step 3, UE is received after the configured information, performs following step
Suddenly：
Step 31, UE judge itself with the presence or absence of with MBSFN modes receive eMBMS service, if exist, continue to hold
Row step 32；Perform if the termination without if；
Step 32, if it is indicated that carry cell identity information ECGI in information, then UE judge the ECGI be whether from
The cell that oneself is currently resident, if then continuing executing with step 33；If not then terminating performing；
Step 33, if it is indicated that time field SwitchoffOngoingTime is carried in information, then UE is according to described
The duration of time field determines at the right time the optimum target re-selecting cell in addition to current itself persistent district；If
Not can determine that, then terminate performing；Duration of the suitable time span less than or equal to the time field；
Step 34, determine behind optimum target re-selecting cell, UE is configured according to the MCCH on the optimum target re-selecting cell
Information judges whether the cell can meet the seriality of itself current eMBMS service and require, if meeting, terminates performing；If no
Can meet, UE then initiates RRC connection establishment processes to itself current persistent district；After connection establishment, UE is to current service cell
The identification information and expectation for reporting target re-selecting cell can guarantee that continuous eMBMS service lists；The current service cell
Current persistent district as before RRC connection establishments；
Step 35, current persistent district receive the identification information of the target re-selecting cell and expectation can guarantee that continuously
After eMBMS service lists, request message is sent to target re-selecting cell, to the eMBMS business continuances for ensureing UE, while working as
RRC connections between front persistent district release and the UE；
Step 36, current persistent district are closed and UE is resident behind target re-selecting cell, and UE is then obtained in that continuously
EMBMS is serviced.
Used as another preferred version of the present invention, in step one, the broadcast mode is：The configured information is placed
In system information block type 2, broadcasted to UE by BCCH.
Used as another preferred version of the present invention, in step one, the broadcast mode is：The configured information is placed
In system information block type 13, broadcasted to UE by BCCH.
Used as another preferred version of the present invention, in step one, the broadcast mode is：In multicast control channel message
Apoplexy due to endogenous wind increases a kind of type of message SwitchoffOngoingIndication Message newly, is broadcasted to UE by MCCH；If
One cell belongs to multiple MBSFN regions simultaneously, then need to broadcast described on the corresponding MCCHs in multiple MBSFN regions simultaneously
Configured information.
The beneficial effects of the present invention is：The method that eMBMS service continuities are ensured under energy-conservation scene of the present invention
Preferably can ensure from mechanism under energy-conservation scene or other can implement under the scene of district dynamic shutdown strategy, to be in
The demand of the eMBMS service continuities of the UE of RRC_IDLE states, for the Quality of Service Experience of user serves positive carrying
Rise effect.
Description of the drawings
Fig. 1 is the method flow diagram that eMBMS service continuities are ensured under energy-conservation scene of the present invention；
Fig. 2 is the flow chart of the broadcast configured information described in embodiment one；
Fig. 3 is the flow chart of the broadcast configured information described in embodiment two；
Fig. 4 is the flow chart of the broadcast configured information described in embodiment three.
Specific embodiment
The present invention relates to radio honeycomb communication system, is more specifically deploying eMBMS services and is supporting energy-conservation plan
In Long Term Evolution (Long Term Evolution, LTE) mobile communication system slightly, in RRC_IDLE states and current
There is the method that its eMBMS service continuity how is ensured for the UE for just receiving eMBMS services in MBSFN modes.
The specific embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Embodiment one
Under energy-conservation scene, system can make decisions on one's own for the cell of some enhancement mode coverings is implemented to close.This feelings
System needs implementing to be connect by wireless heterogeneous networks (Radio Resource Control, RRC) before cell is closed under condition
Mouth broadcasts the configured information that the cell will be implemented to close.In RRC_IDLE states and presently, there are just with multimedia broadcasting group
Broadcast service SFN (Multimedia Broadcast multicast service Single Frequency Network,
MBSFN) mode receives to strengthen multimedia broadcast multicast services (enhanced Multimedia Broadcast Multicast
Service, eMBMS) UE need to pay close attention to above-mentioned broadcast message.Above-mentioned UE receives the instruction letter that cell will be implemented to close
After breath, need to determine the optimum target re-selecting cell in addition to current persistent district in time；Then the target re-selecting cell is judged
The seriality that itself eMBMS whether can be supported to service, if can not support, needs to cross range request target gravity treatment by other little
Area meets with best effort the requirement of eMBMS service continuities.
The present embodiment provides a kind of method that eMBMS service continuities are ensured under energy-conservation scene, as shown in figure 1, including with
Lower step：
Step one, under energy-conservation scene, when energy-saving cell meet triggering implement energy-conservation condition after, by RRC interfaces to
UE in the range of current service broadcasts the configured information that the energy-saving cell will implement to close；The configured information can include
Implement to close temporal information substantially, it is also possible to including the cell identity information for implementing to close.The broadcast mode is：Will be described
Configured information is placed in system information block type 2 (SystemInformationBlockType2, SIB2), by broadcasting control
Channel (Broadcast Control Channel, BCCH) processed to UE is broadcasted, and broadcast flow process is as shown in Figure 2.This broadcast mode
The characteristics of be：All UE in cell serves scope can be received, and the ECGI of cell need not be carried in configured information.
For the data structure of the configured information, the present invention devises information model as shown in table 1, to the model
It is described as follows：
1) configured information is generally optional, i.e., if it is present explanation cell will be implemented to close；
2) SwitchoffOngoingTime in configured information is optional；If it is present represent it is estimated how long
After can implement close, unit of time is the second；If it does not, explanation is implemented to close at once at once or approximately；
3) ECGI (E-UTRAN Cell Global Identifier) in configured information is optional；If broadcast domain is
Single cell, then ECGI is without the need for carrying；If broadcast domain is logically a set of cells, such as：One MBSFN region, then need
Carry the ECGI of cell.
Table 1：The data structuring model of configured information
Step 2, in the energy-saving cell, in RRC IDLE states and presently, there are and just received in MBSFN modes
The UE of eMBMS services pays close attention to the configured information；Whether the UE in the case of other needs to pay close attention to the configured information in the present invention
In do not require.
Step 3, the UE obtains the energy-saving cell will be implemented after the configured information closed, according to configured information
Content completes at the right time the selection of target re-selecting cell, then judges whether the target re-selecting cell can support institute
The seriality of UE itself eMBMS services is stated, if can not support, by other correlated processes the target re-selecting cell is notified
Dispose these eMBMS services in advance with best effort, the seriality serviced to meet the eMBMS to the UE is required.The UE is received
To after the configured information, specific handling process is as follows：
1st, UE judge itself with the presence or absence of with MBSFN modes receive eMBMS service, if exist, continue executing with down
The flow process in face；If the Flow ends without if.
2nd, if it is indicated that carrying cell identity information ECGI in information, then UE judges whether the ECGI is that oneself is currently stayed
The cell stayed, if then continuing following flow process；If not then Flow ends.
3rd, if it is indicated that carrying time field in information, then UE according to the duration of the time field in the suitable time
The interior optimum target re-selecting cell determined in addition to current itself persistent district；If not can determine that, Flow ends.The conjunction
Duration of the suitable time span less than or equal to the time field.
4th, after determining optimum target re-selecting cell, UE sentences according to the MCCH configuration informations on the optimum target re-selecting cell
Whether the cell of breaking can meet the seriality of itself current eMBMS service requires, if meeting, Flow ends；If can not meet,
UE then initiates the request of RRC connection establishments to itself current persistent district；After connection establishment, UE to current persistent district reports target
The identification information of re-selecting cell and expectation can guarantee that continuous eMBMS service lists.
5th, current service cell receives the identification information of the target re-selecting cell and expectation can guarantee that continuous eMBMS
After service list, to target re-selecting cell send request message, to the eMBMS business continuances for ensureing UE, at the same release with
RRC connections between the UE.
6th, current service cell is closed and UE is resident behind target re-selecting cell, and UE can then obtain continuous eMBMS clothes
Business.
The range of application of the present invention can be defined with following 2 conditions：
A) there is the mechanism for implementing district dynamic closing for certain purpose in network side, such as：Energy-conservation, or it is other
Purpose and reason；
B) network side deploys eMBMS services in the way of MBSFN.
Present invention solves the technical problem that being：In above-mentioned range of application, to being in RRC_IDLE states and there is currently
Receive the seriality that the eMBMS of UE is serviced how is ensured for the UE of eMBMS services in MBSFN modes.
The present invention preferably can be ensured from mechanism under energy-conservation scene or other can implement district dynamic shutdown strategy
Scene under, the demand of the eMBMS service continuities of the UE in RRC_IDLE states, for user Quality of Service Experience rise
Positive castering action is arrived.
Embodiment two
The present embodiment is with the difference of embodiment one, and in step one, the broadcast mode is：The configured information is put
Put in system information block type 13 (SystemInformationBlockType13, SIB13), by BCCH (Broadcast
Control Channel) to UE broadcast, broadcast flow process is as shown in Figure 3.The characteristics of this broadcast mode is：In cell serves model
In enclosing, only be concerned about eMBMS service and possess with MBSFN modes receive eMBMS service UE just can receive, this mode is same
The ECGI of cell need not be carried.
Embodiment three
The present embodiment is with the difference of embodiment one, and in step one, the broadcast mode is：Disappear in multicast control channel
Increase one kind in breath class (Multicast Control Channel Message Class, MCCH-Message Class) newly to disappear
Breath type SwitchoffOngoingIndication Message, by MCCH (Multicast Control Channel)
To UE broadcast, broadcast flow process is as shown in Figure 4.The characteristics of this broadcast mode is：Broadcast on the MBSFN regions that cell is located,
On the MBSFN regions all care eMBMS service and possess with MBSFN modes receive eMBMS service UE can receive, institute
To need to carry the ECGI of cell in this case.In addition, if a cell belongs to multiple MBSFN regions simultaneously, then need
Broadcast the configured information on the corresponding MCCHs in this multiple MBSFN region simultaneously.
Description of the invention and application are illustrative, are not wishing to limit the scope of the invention in above-described embodiment.
The deformation and change of embodiments disclosed herein is possible, the embodiment for those skilled in the art
Replacement and equivalent various parts be known.It should be appreciated by the person skilled in the art that in the essence without departing from the present invention
In the case of god or substitutive characteristics, the present invention can otherwise, structure, arrangement, ratio, and with other elements, material
Realize with part.
Claims (5)
1. a kind of method that eMBMS service continuities are ensured under energy-conservation scene, it is characterised in that comprise the following steps：
Step one, under energy-conservation scene, after energy-saving cell meets triggering implements the condition of energy-conservation, the energy-saving cell passes through
RRC interfaces broadcast the configured information that itself will implement to close to the UE in the range of current service；
Step 2, in the energy-saving cell, in RRC_IDLE states and presently, there are and just receive eMBMS in MBSFN modes
The UE of service pays close attention to the configured information；
Step 3, the UE obtains the energy-saving cell will be implemented after the configured information closed, according to the content of configured information
The selection of target re-selecting cell is completed at the right time；Then the UE for obtaining configured information judges the target gravity treatment
Whether cell can support the seriality that itself eMBMS is serviced, if can not support, notify the target re-selecting cell and do the best
And it is the pre- deployment eMBMS services in ground, the seriality serviced with meeting the eMBMS to itself is required；Wherein, in the configured information
Carry implement close time field SwitchoffOngoingTime, then UE according to the duration of the time field suitable
Time in determine optimum target re-selecting cell in addition to current itself persistent district；The suitable time span less than etc.
In the duration of the time field；
UE is received after the configured information, performs following steps：
Step 31, UE judge itself with the presence or absence of with MBSFN modes receive eMBMS service, if exist, continue executing with step
Rapid 32；Perform if the termination without if；
Step 32, if it is indicated that carry cell identity information ECGI in information, then UE judges whether the ECGI is that oneself is worked as
Front resident cell, if then continuing executing with step 33；If not then terminating performing；
Step 33, if it is indicated that time field SwitchoffOngoingTime is carried in information, then UE is according to the time
The duration of field determines at the right time the optimum target re-selecting cell in addition to current itself persistent district；If can not
It is determined that, then terminate performing；Duration of the suitable time span less than or equal to the time field；
Step 34, determine behind optimum target re-selecting cell, UE is according to the MCCH configuration informations on the optimum target re-selecting cell
Judge whether the cell can meet the seriality of itself current eMBMS service and require, if meeting, terminate performing；If can not expire
Foot, UE then initiates RRC connection establishment processes to itself current persistent district；After connection establishment, UE to current service cell reports
The identification information of target re-selecting cell and expectation can guarantee that continuous eMBMS service lists；The current service cell is
Current persistent district before RRC connection establishments；
Step 35, current service cell receive the identification information of the target re-selecting cell and expectation can guarantee that continuously
After eMBMS service lists, request message is sent to target re-selecting cell, to the eMBMS business continuances for ensureing UE, while working as
RRC connections between front Serving cell release and the UE；
Step 36, current persistent district are closed and UE is resident behind target re-selecting cell, and UE is then obtained in that continuous eMBMS clothes
Business.
2. the method that eMBMS service continuities are ensured under energy-conservation scene according to claim 1, it is characterised in that：It is described
Configured information includes implementing time field SwitchoffOngoingTime closed and the cell identity information for implementing to close
ECGI；The configured information is generally optional, i.e., if it is present explanation cell will be implemented to close；In the configured information
Implement time field SwitchoffOngoingTime closed for optional, i.e., if it is present represent it is estimated how long after
Can implement to close, unit of time is the second；If it does not, explanation is implemented to close at once at once or approximately；In the configured information
Cell identity information ECGI closed of enforcement for optional, if that is, broadcast domain is single cell, ECGI is without the need for carrying；If wide
It is logically a set of cells to broadcast domain, then need the ECGI for carrying cell.
3. the method that eMBMS service continuities are ensured under energy-conservation scene according to claim 1, it is characterised in that：Step
In one, the broadcast mode is：The configured information is placed in system information block type 2, by BCCH to
UE is broadcasted.
4. the method that eMBMS service continuities are ensured under energy-conservation scene according to claim 1, it is characterised in that：Step
In one, the broadcast mode is：The configured information is placed in system information block type 13, by BCCH to
UE is broadcasted.
5. the method that eMBMS service continuities are ensured under energy-conservation scene according to claim 1, it is characterised in that：Step
In one, the broadcast mode is：A kind of type of message is increased newly in multicast control channel message apoplexy due to endogenous wind
SwitchoffOngoingIndication Message, are broadcasted by MCCH to UE；If a cell belongs to multiple simultaneously
MBSFN regions, then need while broadcasting the configured information on the corresponding MCCHs in multiple MBSFN regions.
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| CN201110105950.7A CN102761827B (en) | 2011-04-26 | 2011-04-26 | Method for ensuring eMBMS service continuity in energy-saving scenario |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104519555A (en) * | 2013-09-27 | 2015-04-15 | 电信科学技术研究院 | Method and device for information transmission |
| US10084567B2 (en) * | 2015-03-04 | 2018-09-25 | Qualcomm Incorporated | Early termination in enhanced multimedia broadcast-multicast service reception |
| CN106550420A (en) * | 2015-09-23 | 2017-03-29 | 深圳市中兴微电子技术有限公司 | Realize the method and apparatus that enhanced multimedia broadcast multicast service is continuously received |
| EP3457749B1 (en) | 2016-09-07 | 2021-03-03 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Information transmission method and apparatus |
| CN107231619A (en) * | 2017-07-31 | 2017-10-03 | 江苏省邮电规划设计院有限责任公司 | Strengthen the method for eMBMS service continuities in a kind of 4G systems |
| WO2021253386A1 (en) * | 2020-06-19 | 2021-12-23 | 深圳传音控股股份有限公司 | Method, device and system for reducing power consumption, and storage medium |
| WO2022141639A1 (en) * | 2021-01-04 | 2022-07-07 | 北京小米移动软件有限公司 | Cell reselection method and apparatus, communication device, and storage medium |
| WO2023236163A1 (en) * | 2022-06-09 | 2023-12-14 | Oppo广东移动通信有限公司 | Communication method, terminal device, and network device |
| WO2024065329A1 (en) * | 2022-09-28 | 2024-04-04 | 富士通株式会社 | Information processing method and apparatus |
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