CN102761828B - A kind of method ensureing eMBMS service continuity in cell reselection - Google Patents
A kind of method ensureing eMBMS service continuity in cell reselection Download PDFInfo
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- CN102761828B CN102761828B CN201110105951.1A CN201110105951A CN102761828B CN 102761828 B CN102761828 B CN 102761828B CN 201110105951 A CN201110105951 A CN 201110105951A CN 102761828 B CN102761828 B CN 102761828B
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Abstract
The invention discloses a kind of method ensureing eMBMS service continuity in cell reselection, including: in the case of meeting triggering cell gravity treatment, if the UE being in RRC_IDLE state currently has the eMBMS service accepted, then performing cell reselection when, UE needs to do a judgement according to the configuration information on the multicast control channel of target re-selecting cell: judge whether target re-selecting cell supports the seriality that self current eMBMS services；If not supporting, then UE to current persistent district/base station initiate RRC connection establishment request；After RRC connection establishment, described UE reports the identification information of target re-selecting cell by newly-increased RRC information and wishes the eMBMS service list that target re-selecting cell provides in MBSFN mode.The present invention preferably can ensure the eMBMS service continuity of the UE being in RRC_IDLE state from mechanism, and the Quality of Service Experience for user serves positive effect.
Description
Technical field
The invention belongs to wireless communication technology field, relate to the side ensureing eMBMS service continuity in a kind of cell reselection
Method.
Background technology
Third generation partner program (3rd Generation Partnership Project, 3GPP) is drawn at R6 version
Enter multimedia broadcast/group broadcast service (Multimedia Broadcast/Multicast Service, MBMS) characteristic, it is achieved
Transmit a kind of point-to-multipoint business of data to users multiple in particular range so that Internet resources obtain from data source simultaneously
Share, thus be embodied as having in a large number the user of same requirements with less resource and multimedia service is provided simultaneously.Drill for a long time
Enter/System Architecture Evolution (Long Term Evolution/System Architecture Evolution, LTE/SAE) net
Under network framework, MBMS carrying aspect realize framework and mode all there occurs that some change, we for difference before
MBMS carrying realization be called eMBMS.
In eMBMS, an important change is to introduce multicast and broadcast multicast service SFN (Multicast
Broadcast Single Frequency Network, MBSFN) transmission concept, i.e. exist with same frequency in the same time
Multiple communities carry out synchronous transfer, use this load mode can save frequency resource, and the diversity simultaneously brought is permissible
Strengthen the reliability received, improve the effect covered.Below several terms about MBSFN are illustrated:
1.MBMS session (MBMS Session): can be understood as continuous in time one section MBMS Service fragment,
On time dimension, it has the attribute such as time started and termination time, and a MBMS Service is most in a moment point
Can only there is a Session.
2.MBSFN retaining zone (MBSFN Synchronization Area): refer to have the ability to carry out MBSFN transmission
Region, all eNodeB in this region can be synchronized and be carried out MBSFN transmission.
3.MBMS coverage (MBMS Service Area): be a concept based on specific MBMS Session, be
Refer to the geographic range that specific MBMS Session can be transmitted by.The different Session of same MBMS Service can be corresponding
Different MBMS Service Area.One MBMS Service Area can include one or more MBSFN Area.
4.MBSFN region (MBSFN Area): refer to achieve one group of set of cells that MBSFN transmits；It also will be understood that
It it is the least unit of eMBMS business transmission.
MBSFN region can must comprise in one MBSFN retaining zone without departing from the scope of MBSFN retaining zone
Multiple MBSFN regions, and the specific cell of MBSFN retaining zone can also belong to multiple different MBSFN region.Service is continuously
Property relatively more crucial and important for the Quality of Service Experience of user, if can not get guarantee, Consumer's Experience can cause
A certain degree of infringement.EMBMS is serviced, owing to UE can also accept in rrc-idle state, therefore for RRC_
UE under IDLE state needs also exist for considering in the seriality that the eMBMS conducted in cell reselection process services.At present from mark
From the point of view of standard and specification, to ensureing that under RRC_IDLE state, the eMBMS service continuity of UE does not also have the clearest and the most definite solution
Scheme.
Summary of the invention
The technical problem to be solved is: provide the side ensureing eMBMS service continuity in a kind of cell reselection
Method, the method.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that.
A kind of method ensureing eMBMS service continuity in cell reselection, including: in the situation meeting triggering cell gravity treatment
Under, if the UE being in RRC_IDLE state currently has the eMBMS service accepted, then UE performing cell reselection when
Need to do a judgement according to the configuration information on the multicast control channel of target re-selecting cell: judge whether target re-selecting cell props up
Hold the seriality of self current eMBMS service；If not supporting, then UE to current persistent district/base station initiate RRC connection establishment please
Ask；After RRC connection establishment, described UE is reported the identification information of target re-selecting cell by newly-increased RRC information and is wished mesh
The eMBMS service list that mark re-selecting cell provides in MBSFN mode.
As a preferred embodiment of the present invention, the identification information of described target re-selecting cell is physical cell identity PCI
Or the global identity ECGI of community.
As the another kind of preferred version of the present invention, described method specifically include following steps:
1) in the case of meeting triggering cell gravity treatment, UE determines target re-selecting cell in judging process；
2) UE according to the configuration information on the multicast control channel of target re-selecting cell and currently self with MBSFN side
The eMBMS information on services that formula accepts, it is judged that whether described target re-selecting cell exists the eMBMS service do not supported；If it does,
Then perform step 3)；If it does not exist, then terminate performing；
3) UE initiates the request of RRC connection establishment to current persistent district；If the success of RRC connection establishment, then continue executing with
Step 4), current persistent district now is referred to as current service cell；If the failure of RRC connection establishment, then terminate performing；
4) UE reports the last institute before this RRC connection establishment true to current service cell by newly-increased RRC information
PCI or ECGI of fixed target re-selecting cell, and optional carry self eMBMS service list TMGI List of interest；
5), after current service cell has successfully received reporting message, release at once is connected with the RRC of described UE；
6) current service cell according to PCI or ECGI reported to target re-selecting cell send instruction message, request target
The guarantee that the eMBMS service that TMGI List is comprised by re-selecting cell is done one's best；TMGI List now preferentially selects
Select the TMGI List entrained by described RRC information, if described RRC information does not carry TMGI List, then select network side to lead to
Cross the TMGI List that other modes obtain；
7) described UE is resident behind target re-selecting cell, and the eMBMS service comprised for TMGI List can obtain to the greatest extent
Power and the seriality guarantee that is.
As another preferred version of the present invention, there are other modes at network side and can obtain and be in RRC_IDLE shape
In the case of the UE TMGI of interest List of state, described RRC information need not be carried TMGI List again.
The beneficial effects of the present invention is: the method ensureing eMBMS service continuity in cell reselection of the present invention
Preferably can ensure the eMBMS service continuity of the UE being in RRC_IDLE state from mechanism, for the Service Quality of user
Amount is experienced and is served positive effect.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method ensureing eMBMS service continuity in cell reselection of the present invention.
Detailed description of the invention
The present invention relates to radio honeycomb communication system, more specifically in the LTE mobile communication deploying eMBMS service
In system, the method that the UE being in RRC_IDLE state is ensured eMBMS service continuity in cell reselection process.Solution of the present invention
That determines technical problem is that: the eMBMS service accepted in rrc-idle state for UE, how to protect in UE cell reselection process
The seriality of barrier eMBMS service.For eMBMS (enhanced Multimedia Broadcast/Multicast
Service), for capable UE, it the most also can accept eMBMS service；Therefore at community weight
Need to consider the security mechanism of eMBMS service continuity during choosing.The present invention propose after re-selecting cell determines UE according to
The eMBMS service scenario that re-selecting cell is supported decides whether to notify target weight by the most resident cell-of-origin
Community is selected to do the pre-deployment of some eMBMS done one's best service, to ensure the seriality that eMBMS services.
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.
Embodiment one
The present embodiment provides a kind of method ensureing eMBMS service continuity in cell reselection, the main contents of the method
For: in the case of meeting triggering cell gravity treatment, if the UE being in RRC_IDLE state currently has the eMBMS clothes accepted
Business, then performing cell reselection when, UE needs according to target re-selecting cell multicast control channel (Multicast Control
Channel, MCCH) on configuration information do a judgement: judge whether target re-selecting cell supports that self current eMBMS takes
The seriality of business；If not supporting, the most described UE to current persistent district/base station initiate RRC connection establishment request；RRC connection is built
After Li, described UE by newly-increased RRC information report target re-selecting cell identification information and wish target re-selecting cell with
The eMBMS service list (Temporary Mobile Group Identity List, TMGI List) that MBSFN mode provides,
The identification information of target re-selecting cell can be that physical cell identity (Physical Cell Identifier, PCI) can also
It it is the global identity (E-UTRAN Cell Global Identifier, ECGI) of community.
The cell reselection that the present embodiment provides ensures specific implementation process such as Fig. 1 of the method for eMBMS service continuity
Shown in, comprise the following steps:
1) in the case of meeting triggering cell gravity treatment, UE determines target re-selecting cell in judging process；
2) UE according to the MCCH configuration information of target re-selecting cell and currently self is accepting in MBSFN mode
EMBMS information on services, it is judged that whether this target re-selecting cell exists the eMBMS service do not supported；If it is present continue following
Flow process；If it does not exist, then Flow ends；
3) UE initiates the request of RRC connection establishment to current persistent district；If the success of RRC connection establishment, then continue following
Flow process, the most described current persistent district is referred to as current service cell；If the failure of RRC connection establishment, then Flow ends；
4) to current service cell, by newly-increased RRC information, (in the present invention, message name is defined as MBMS to UE
Session Continuity Indication) report target gravity treatment determined by the last time before this RRC connection establishment little
PCI or ECGI in district, and optional carry self eMBMS service list TMGI List (Temporary Mobile of interest
Group Identity List)；There are other modes at network side and can obtain that to be in the UE of RRC_IDLE state of interest
In the case of TMGI List, described RRC information can be carried TMGI List again；Wherein PCI, ECGI and TMGI
The data structure of List sees table 1, table 2 and table 3 respectively；Described RRC information MBMS Session Continuity
The data structure that Indication carries has two kinds of forms, sees table 4 and table 5 respectively.
The data structuring model of table 1:PCI
The data structuring model of table 2:ECGI
The data structuring model of table 3:TMGI List
The data structuring model one that table 4:RRC message is carried
The data structuring model two that table 5:RRC message is carried
5), after current service cell has successfully received above-mentioned message, can at once discharge the RRC with described UE and be connected；
6) current service cell sends instruction according to PCI or ECGI reported to corresponding target re-selecting cell/base station and disappears
Breath, the guarantee that the eMBMS service that TMGI List is comprised by request target re-selecting cell is done one's best；TMGI now
TMGI List entrained by the above-mentioned RRC information of List prioritizing selection, if above-mentioned RRC information is not carried, then can be network side
Acquired in by other means；
7) described UE is resident behind target re-selecting cell, and the eMBMS service comprised for TMGI List can obtain
The seriality guarantee done one's best.
The present invention preferably can ensure the eMBMS service continuity of the UE being in RRC_IDLE state from mechanism, right
Quality of Service Experience in user serves positive effect.
The range of application of the present invention is: to being in the UE of RRC_IDLE state, if there is the eMBMS service received,
EMBMS service continuity solutions provided by the present invention can be applied during performing cell reselection.
Description of the invention and application are illustrative, are not wishing to limit the scope of the invention in above-described embodiment.
The deformation of embodiments disclosed herein and change are possible, embodiment for those skilled in the art
Replace and equivalence 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, layout, ratio, and with other elements, material
Realize with parts.
Claims (3)
1. the method ensureing eMBMS service continuity in a cell reselection, it is characterised in that: meeting triggering cell gravity treatment
In the case of, if the UE being in RRC_IDLE state currently have accepting eMBMS service, then perform cell reselection time
Wait UE to need to do a judgement according to the configuration information on the multicast control channel of target re-selecting cell: judge that target re-selecting cell is
The seriality of no support self current eMBMS service；If not supporting, then UE to current persistent district/base station initiate RRC connect build
Vertical request；After RRC connection establishment, described UE reports the identification information of target re-selecting cell by newly-increased RRC information and wishes
The eMBMS service list that inspection of the eyes mark re-selecting cell provides in MBSFN mode；Described method specifically include following steps:
1) in the case of meeting triggering cell gravity treatment, UE determines target re-selecting cell in judging process；
2) UE according to the configuration information on the multicast control channel of target re-selecting cell and currently self connects in MBSFN mode
The eMBMS information on services being subject to, it is judged that whether described target re-selecting cell exists the eMBMS service do not supported；If it is present hold
Row step 3)；If it does not exist, then terminate performing；
3) UE initiates the request of RRC connection establishment to current persistent district；If the success of RRC connection establishment, then continue executing with step
4), current persistent district now is referred to as current service cell；If the failure of RRC connection establishment, then terminate performing；
4) UE reports before this RRC connection establishment determined by the last time to current service cell by newly-increased RRC information
PCI or ECGI of target re-selecting cell, and optional carry self eMBMS service list TMGI List of interest；
5), after current service cell has successfully received reporting message, release at once is connected with the RRC of described UE；
6) current service cell according to PCI or ECGI reported to target re-selecting cell send instruction message, request target gravity treatment
The guarantee that the eMBMS service that TMGI List is comprised by community is done one's best；TMGI List prioritizing selection institute now
State the TMGI List entrained by RRC information, if described RRC information does not carry TMGI List, then select network side by it
The TMGI List that his mode obtains；
7) described UE is resident behind target re-selecting cell, the eMBMS service that TMGI List is comprised can obtain as possible and
For seriality guarantee.
The method ensureing eMBMS service continuity in cell reselection the most according to claim 1, it is characterised in that: described
The identification information of target re-selecting cell is the global identity ECGI of physical cell identity PCI or community.
The method ensureing eMBMS service continuity in cell reselection the most according to claim 1, it is characterised in that: at net
Network side exists in the case of other modes can obtain the UE TMGI of interest List being in RRC_IDLE state, described RRC
Message need not be carried TMGI List again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110105951.1A CN102761828B (en) | 2011-04-26 | 2011-04-26 | A kind of method ensureing eMBMS service continuity in cell reselection |
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| CN201110105951.1A CN102761828B (en) | 2011-04-26 | 2011-04-26 | A kind of method ensureing eMBMS service continuity in cell reselection |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9319851B2 (en) | 2013-03-22 | 2016-04-19 | Mediatek, Inc. | Radio resource efficient transmission for group communication over LTE eMBMS |
| WO2015061981A1 (en) * | 2013-10-30 | 2015-05-07 | Qualcomm Incorporated | Ad-hoc group call communications over evolved multimedia broadcast multicast service |
| 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 |
| 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 |
| CN114554558B (en) * | 2020-11-25 | 2024-08-13 | 维沃移动通信有限公司 | Message sending method, device and terminal |
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|---|---|---|---|---|
| CN1956590A (en) * | 2005-10-28 | 2007-05-02 | 华为技术有限公司 | Cell reselection processing method and its user terminal |
| CN101547409A (en) * | 2008-03-26 | 2009-09-30 | 华为技术有限公司 | Method, terminal, network side equipment and network system for maintaining service continuity |
| CN101815251A (en) * | 2009-02-24 | 2010-08-25 | 鼎桥通信技术有限公司 | Method for notifying configuration information of neighbor cell logic channel |
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| KR100880999B1 (en) * | 2003-08-07 | 2009-02-03 | 삼성전자주식회사 | Method for transmitting/receiving multimedia broadcast/multicasting service |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1956590A (en) * | 2005-10-28 | 2007-05-02 | 华为技术有限公司 | Cell reselection processing method and its user terminal |
| CN101547409A (en) * | 2008-03-26 | 2009-09-30 | 华为技术有限公司 | Method, terminal, network side equipment and network system for maintaining service continuity |
| CN101815251A (en) * | 2009-02-24 | 2010-08-25 | 鼎桥通信技术有限公司 | Method for notifying configuration information of neighbor cell logic channel |
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