CN106412851A - Group call area management method under SC-PTM system - Google Patents

Group call area management method under SC-PTM system Download PDF

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Publication number
CN106412851A
CN106412851A CN201510456015.3A CN201510456015A CN106412851A CN 106412851 A CN106412851 A CN 106412851A CN 201510456015 A CN201510456015 A CN 201510456015A CN 106412851 A CN106412851 A CN 106412851A
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group
message
cell
mark
origin
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CN201510456015.3A
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CN106412851B (en
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蔡杰
陈喆
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Putian Information Technology Co Ltd
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Putian Information Technology Co Ltd
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Priority to CN201510456015.3A priority Critical patent/CN106412851B/en
Priority to PCT/CN2016/091954 priority patent/WO2017016495A1/en
Publication of CN106412851A publication Critical patent/CN106412851A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a group call area management method under an SC-PTM system. The group call area management method comprises the steps that UE participating in a group call transmits a first message carrying group, source cell and UE identifiers to a target cell during cell reselection; upon receiving the first message, the target cell transmitting a second message carrying group, UE, source cell and target cell identifiers to an MCE to which the target cell belongs, the UE and the target cell identifying the second message; the MCE maintains a target cell group call list according to the group and UE identifiers, transmits a third message carrying an indication of whether to perform bearing type conversion of the group call to a corresponding target cell based on the target cell identifier, deletes UE identifier information in the group call in a source cell group call list, and transmits a fourth message carrying the indication to perform bearing release or of whether to perform bearing type conversion of the group call to the corresponding source cell according to the source cell identifier; and the source cell performs the bearing release or the bearing type conversion or does not perform the bearing type conversion. The number of terminals participating in the group call in the cell can be accurately known, a basis is provided for the bearing type selection of the group call in the cell, and the signal transmission quality is improved while the service continuity is ensured.

Description

A kind of group call region management method under SC-PTM system
Technical field
The present invention relates to wireless communication technology field, under more particularly, to a kind of SC-PTM system Group call region management method.
Background technology
Third generation partner program (3rd Generation Partnership Project, referred to as Single cell point 3GPP) to multiple spot (Single-Cell Point-to-Multipoint, referred to as SC-PTM) subject under discussion have studied at Long Term Evolution (Long Term Evolution, abbreviation LTE) Support the feasibility to multicast communication for the single cell point in system, and propose ambulant solution party Case：User equipment for RRC_CONNECTED state (User Equipment, referred to as UE), by evolved base station, (evolved Node B, abbreviation eNB carry to it in handoff procedure Call arrangement for Target cell；For the UE of RRC_IDLE state, can be by current service The call arrangement of Cell Broadcast CB adjacent cell, or make UE when Serving cell will be left, enter Enter RRC_CONNECTED state, minizone is completed by switching and moves.
Above-mentioned mobility scheme primary concern is that how to ensure that UE tries one's best after entering Target cell Little service disconnection, but do not account for after UE completes mobile, the treatment mechanism of cell-of-origin.Root According to the requirement of SC-PTM, network needs according to the UE quantity participating in calling, determines to make in cell Bearer types, if the UE quantity participating in cell calling is too low, this cell will use Unicast bearer rather than SC-PTM carry to ensure speech quality.And as described above, 3GPP Existing scheme only considered the situation of Target cell, have ignored the UE number change of cell-of-origin.
For the problems referred to above, the major programme of domestic industry is by Non-Access Stratum (Non-access Stratum, abbreviation NAS) mechanism solution.As carried when UE initiating updating of tracking area process The group participating in exhales information, and core net safeguards the tracing area that each calling is related to, such that it is able to sentence Break in which tracking area and be not engaged in the UE that group is exhaled, thus indicating that base station release corresponds to The group call resource of tracking area.
The existing scheme of 3GPP only considered the situation of Target cell, have ignored the UE of cell-of-origin Number change is it is impossible to realize the determination of bearer types in cell-of-origin；NAS mechanism can only be in UE The granularity solve problem of tracking area list, in real network, tracking area list generally comprises many Individual tracking area, and a tracking area generally comprises multiple cells, therefore NAS mechanism can only be entered The rough UE of row counts, and degree of accuracy is inadequate.
In consideration of it, how to know the terminal quantity of participation group calling under cell, think that little district's groups are exhaled Bearer types select to provide foundation, improve signal transmission quality under the premise of ensureing business continuance Become the current technical issues that need to address.
Content of the invention
For solving above-mentioned technical problem, the present invention provides the group under a kind of SC-PTM system to exhale Area management method, can accurately know the terminal quantity of participation group calling under cell, be cell Group exhales bearer types to select to provide foundation, improves signal transmission under the premise of ensureing business continuance Quality.
In a first aspect, the present invention provides the group call region management method under a kind of SC-PTM system, Including：
The user equipment (UE) that participation group is exhaled, in cell reselection, sends first to Target cell and disappears Breath, described first message carries the group mark that the participated in group of this UE exhales, cell-of-origin identifies, UE Mark；
After described Target cell receives described first message, coordinate to affiliated multiple cell/multicast Entity MCE sends the second message, and described second message carries the group that the participated in group of this UE is exhaled Mark, cell-of-origin mark, Target Cell Identifier, UE mark；
After described MCE receives described second message, according to the group mark in described second message Know and determine that the group that described UE is participated in is exhaled, safeguarded according to described group of mark and described UE mark The group of described Target cell exhales list, and according to described Target Cell Identifier to this Target cell Identify corresponding Target cell and send the 3rd message, described 3rd message carries described for indicating Whether Target cell carries out the information of the bearer types conversion that this group is exhaled, and wherein, the described 3rd disappears Ceasing the information carrying is to exhale list to determine by described MCE according to the group of described Target cell to participate in After the UE quantity that this group is exhaled, participate in, according to described, the UE quantity that this group is exhaled, judge described Whether Target cell carries out bearer types conversion that this group exhales and determines；
Described MCE is determining what described UE participated according to the group mark in described second message After group is exhaled, also delete described cell-of-origin group exhale this group in list exhale described in UE mark Information, and identified according to described cell-of-origin and send to this cell-of-origin corresponding cell-of-origin of mark 4th message, described 4th message carries for indicating that described cell-of-origin discharges the carrying that this group is exhaled Information, or carry and turn for indicating whether described cell-of-origin carries out the bearer types that this group exhales The information changed, wherein, the information that described 4th message carries is according to described by described MCE After the group of cell-of-origin exhales list to determine the UE quantity that this group of participation is exhaled, should according to described participation The UE quantity that group is exhaled, judge described cell-of-origin whether carry out bearer types conversion that this group exhales or What what whether person carried out that this group exhales carried release and determined；
After described cell-of-origin receives described 4th message, according to described 4th message release The carrying that the group that UE is participated in is exhaled, or carried out or described in not carrying out according to described 4th message The bearer types conversion that the group that UE is participated in is exhaled；
Wherein, described cell-of-origin and described Target cell belong to same MCE.
Alternatively, when the user equipment (UE) that described participation group is exhaled is in cell reselection, to target Before cell sends first message, also include：
UE, when first time receiving the notification message that group is exhaled, sends the 5th to affiliated cell-of-origin Message, described 5th message carries group mark and the UE mark that the participated in group of this UE is exhaled；
After described cell-of-origin receives described 5th message, send the 6th message to affiliated MCE, Described 6th message carries group mark and the UE mark that the participated in group of this UE is exhaled；
Described MCE is according to described group of mark in described 6th message and described UE mark dimension The group protecting described cell-of-origin exhales list.
Alternatively, described 5th message is radio resource control RRC message, or media access Control MAC message.
Alternatively, described radio resource control RRC message is specially wireless heterogeneous networks and connects Request RRCConnectionRequest message.
Alternatively, described media access control MAC message is specially random access procedure MSG3 message.
Alternatively, described cell-of-origin mark, including：Physical Cell Identifier PCI, and/or the whole world Cell ID CGI.
Alternatively, described first message is radio resource control RRC message, or media access Control MAC message.
Alternatively, described radio resource control RRC message is specially wireless heterogeneous networks and connects Request RRCConnectionRequest message.
Alternatively, described media access control MAC message is specially random access procedure MSG3 message.
As shown from the above technical solution, the group call region management under the SC-PTM system of the present invention Method, can accurately know the terminal quantity of participation group calling under cell, be that little district's groups exhale carrying Type selecting provides foundation, improves signal transmission quality under the premise of ensureing business continuance.
Brief description
Group call region pipe under a kind of SC-PTM system that Fig. 1 provides for one embodiment of the invention The schematic flow sheet of reason method；
Fig. 2 is that UE provided in an embodiment of the present invention utilizes RRC information will to organize mark and UE Mark is sent to the signalling diagram of cell-of-origin；
Fig. 3 is that UE provided in an embodiment of the present invention utilizes RRCConnectionRequest message Group mark and UE mark are sent to the signalling diagram of cell-of-origin；
Fig. 4 is that UE provided in an embodiment of the present invention utilizes the MSG3 message of Stochastic accessing by group Mark and UE identify the signalling diagram being sent to cell-of-origin；
Fig. 5 is that UE provided in an embodiment of the present invention utilizes the MSG3 message of Stochastic accessing to increase Group identify MAC CE structural representation；
Fig. 6 is that UE provided in an embodiment of the present invention utilizes the MSG3 message of Stochastic accessing to increase UE identify MAC CE structural representation；
Fig. 7 be UE provided in an embodiment of the present invention utilize RRC information will organize mark, source little Area's mark and UE identify the signalling diagram being sent to Target cell；
Fig. 8 is that UE provided in an embodiment of the present invention utilizes RRCConnectionRequest message Group mark, cell-of-origin mark and UE mark are sent to the signalling diagram of Target cell；
Fig. 9 is that UE provided in an embodiment of the present invention utilizes the MSG3 message of Stochastic accessing by group Mark, cell-of-origin mark and UE mark are sent to the signalling diagram of Target cell；
Figure 10 is that UE provided in an embodiment of the present invention utilizes the MSG3 message of Stochastic accessing to increase Plus cell ID MAC CE structural representation.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, will tie below Close the embodiment of the present invention in accompanying drawing, the technical scheme in the embodiment of the present invention is carried out clear, Complete describes it is clear that described embodiment is only a part of embodiment of the present invention, and It is not all, of embodiment.Based on embodiments of the invention, those of ordinary skill in the art are not having There is the every other embodiment being obtained under the premise of making creative work, broadly fall into the present invention The scope of protection.
Fig. 1 shows a kind of SC-PTM system Xia Zuhu area that one embodiment of the invention provides The schematic flow sheet of area management method, as shown in figure 1, under the SC-PTM system of the present embodiment Group call region management method as described below.
101st, participation group exhales the user equipment (UE) of (IDLE state) in cell reselection, to Target cell sends first message, and described first message carries the group mark that the participated in group of this UE is exhaled Know, cell-of-origin mark, UE identify.
In a particular application, cell-of-origin mark described in the present embodiment, it may include but be not limited to：Thing Reason cell ID (Physical Cell Identifier, abbreviation PCI), and/or global cell identification Code (Cell Global Identifier, abbreviation CGI) etc..
In a particular application, may relate to different cell base stations due in UE moving process, The group mark that therefore the present embodiment sends should be that network is unique, such as Temporary Mobile Group Identity (Temporary Mobile Group Identity, abbreviation TMGI) etc..
In a particular application, for example, first message described in the present embodiment can provide for wireless Source controls RRC information, as shown in fig. 7, can increase described group of mark and cell-of-origin mark To in RRC information；
Further, for example, described radio resource control RRC message can be concrete It is chosen as wireless resource control connection request RRCConnectionRequest message, such as Fig. 8 Shown, described group of mark and cell-of-origin mark can be increased to as new cell In RRCConnectionRequest message.
In a particular application, for example, first message described in the present embodiment can also be media Access Control (Media Access Control, abbreviation MAC) message；
Further, for example, described MAC message can be selected specifically to connect at random Enter the MSG3 message of process, as shown in figure 9, described group can be identified new as one MAC CE increases in the MSG3 message of Stochastic accessing, using described cell-of-origin mark as Another new MAC CE (as shown in Figure 10) increases in described MSG3 message, will Described UE mark increases in described MSG3 message as another new MAC CE.
102nd, after described Target cell receives described first message, to affiliated multiple cell/multicast Coordination entity (Multi-cell/Multicast Coordination Entity, abbreviation MCE) sends Second message, described second message carries group mark, the cell-of-origin mark that the participated in group of this UE is exhaled Knowledge, Target Cell Identifier, UE mark.
103rd, after described MCE receives described second message, according in described second message Group mark determines that the group that described UE is participated in is exhaled, according to described group of mark and described UE mark Safeguard that the group of described Target cell exhales list, and according to described Target Cell Identifier to this target The corresponding Target cell of cell ID sends the 3rd message, and described 3rd message carries for indicating Whether described Target cell carries out the information of the bearer types conversion that this group exhales, wherein, described the The information that three message carry is to exhale list to determine by described MCE according to the group of described Target cell After participating in the UE quantity that this group is exhaled, participate in, according to described, the UE quantity that this group is exhaled, judge Whether described Target cell carries out bearer types conversion that this group exhales and determines.
104th, described MCE is determining described UE ginseng according to the group mark in described second message With group exhale after, also delete described cell-of-origin group exhale this group in list exhale described in UE Mark information, and according to described cell-of-origin identify to this cell-of-origin identify corresponding cell-of-origin Send the 4th message, described 4th message carries for indicating that described cell-of-origin discharges what this group was exhaled The information carrying, or carry for indicating whether described cell-of-origin carries out the carrying class that this group is exhaled The information of type conversion, wherein, information that described 4th message carries be by described MCE according to After the group of described cell-of-origin exhales list to determine the UE quantity that this group of participation is exhaled, according to described ginseng The UE quantity exhaled with this group, judges whether described cell-of-origin carries out the bearer types that this group exhales and turn Change or whether carry out that this group exhales carries release and determine；
It will be appreciated that if participating in the UE quantity that this group exhales is 0, described 3rd message is taken Carry the information for indicating carrying that the group that release described UE in described cell-of-origin participates in is exhaled
105th, after described cell-of-origin receives described 4th message, released according to described 4th message Put the carrying that the group that described UE participated in is exhaled, or carried out according to described 4th message or do not enter The bearer types conversion that the group that the described UE of row is participated in is exhaled.
Wherein, described cell-of-origin and described Target cell belong to same MCE.
Group call region management method under the SC-PTM system of the present embodiment, can accurately know The terminal quantity of participation group calling under cell, exhales bearer types to select to provide foundation for little district's groups, Improve signal transmission quality under the premise of ensureing business continuance.
In a particular application, before the present embodiment above-mentioned steps 101, also include in figure not shown Step P1-P3：
P1, UE, when first time receiving the notification message that group is exhaled, send to affiliated cell-of-origin 5th message, described 5th message carries group mark and the UE mark that the participated in group of this UE is exhaled.
In a particular application, for example, described 5th message can be wireless heterogeneous networks RRC information, as shown in Fig. 2 can increase to described group of mark in RRC information；
Further, for example, described radio resource control RRC message can be concrete It is chosen as wireless resource control connection request RRCConnectionRequest message, such as Fig. 3 Shown, described group of mark can be increased to RRCConnectionRequest as new cell In message.
In a particular application, for example, described 5th message can also be medium education (Media Access Control, abbreviation MAC) message；
Further, for example, described MAC message can be selected specifically to connect at random Enter the MSG3 message of process, as shown in figure 4, can be using described group of mark as a new matchmaker Body access control layer control unit (MAC Control Element, abbreviation MAC CE) is (such as Shown in Fig. 5) increase in the MSG3 message of Stochastic accessing, using described UE mark as separately One new MAC CE (as shown in Figure 6) increases in described MSG3 message.
After P2, described cell-of-origin receive described 5th message, send the 6th to affiliated MCE Message, described 6th message carries group mark and the UE mark that the participated in group of this UE is exhaled.
P3, described MCE are according to described group of mark in described 6th message and described UE mark Know and safeguard that the group of described cell-of-origin exhales list (as shown in table 1).
Table 1
Group call region management method under the SC-PTM system of the present embodiment, can accurately know The terminal quantity of participation group calling under cell, exhales bearer types to select to provide foundation for little district's groups, Improve signal transmission quality under the premise of ensureing business continuance.
One of ordinary skill in the art will appreciate that：Realize the whole of above-mentioned each method embodiment or Part steps can be completed by the related hardware of programmed instruction.Aforesaid program can store In a computer read/write memory medium.Upon execution, execution includes above-mentioned each side to this program The step of method embodiment；And aforesaid storage medium includes：ROM, RAM, magnetic disc or CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, It is not intended to limit；Although being described in detail to the present invention with reference to foregoing embodiments, It will be understood by those within the art that：It still can be to described in foregoing embodiments Technical scheme modify, or wherein some or all of technical characteristic is carried out with equivalent replacing Change；And these modifications or replacement, do not make the essence of appropriate technical solution depart from the present invention each The scope of embodiment technical scheme.

Claims (9)

1. the group call region management method under a kind of SC-PTM system is it is characterised in that wrap Include：
The user equipment (UE) that participation group is exhaled, in cell reselection, sends first to Target cell and disappears Breath, described first message carries the group mark that the participated in group of this UE exhales, cell-of-origin identifies, UE Mark；
After described Target cell receives described first message, coordinate to affiliated multiple cell/multicast Entity MCE sends the second message, and described second message carries the group that the participated in group of this UE is exhaled Mark, cell-of-origin mark, Target Cell Identifier, UE mark；
After described MCE receives described second message, according to the group mark in described second message Know and determine that the group that described UE is participated in is exhaled, safeguarded according to described group of mark and described UE mark The group of described Target cell exhales list, and according to described Target Cell Identifier to this Target cell Identify corresponding Target cell and send the 3rd message, described 3rd message carries described for indicating Whether Target cell carries out the information of the bearer types conversion that this group is exhaled, and wherein, the described 3rd disappears Ceasing the information carrying is to exhale list to determine by described MCE according to the group of described Target cell to participate in After the UE quantity that this group is exhaled, participate in, according to described, the UE quantity that this group is exhaled, judge described Whether Target cell carries out bearer types conversion that this group exhales and determines；
Described MCE is determining what described UE participated according to the group mark in described second message After group is exhaled, also delete described cell-of-origin group exhale this group in list exhale described in UE mark Information, and identified according to described cell-of-origin and send to this cell-of-origin corresponding cell-of-origin of mark 4th message, described 4th message carries for indicating that described cell-of-origin discharges the carrying that this group is exhaled Information, or carry and turn for indicating whether described cell-of-origin carries out the bearer types that this group exhales The information changed, wherein, the information that described 4th message carries is according to described by described MCE After the group of cell-of-origin exhales list to determine the UE quantity that this group of participation is exhaled, should according to described participation The UE quantity that group is exhaled, judge described cell-of-origin whether carry out bearer types conversion that this group exhales or What what whether person carried out that this group exhales carried release and determined；
After described cell-of-origin receives described 4th message, according to described 4th message release The carrying that the group that UE is participated in is exhaled, or carried out or described in not carrying out according to described 4th message The bearer types conversion that the group that UE is participated in is exhaled.
Wherein, described cell-of-origin and described Target cell belong to same MCE.
2. method according to claim 1 is it is characterised in that exhale in described participation group User equipment (UE) in cell reselection, to Target cell send first message before, also wrap Include：
UE, when first time receiving the notification message that group is exhaled, sends the 5th to affiliated cell-of-origin Message, described 5th message carries group mark and the UE mark that the participated in group of this UE is exhaled；
After described cell-of-origin receives described 5th message, send the 6th message to affiliated MCE, Described 6th message carries group mark and the UE mark that the participated in group of this UE is exhaled；
Described MCE is according to described group of mark in described 6th message and described UE mark dimension The group protecting described cell-of-origin exhales list.
3. method according to claim 2 is it is characterised in that described 5th message is Radio resource control RRC message, or media access control MAC message.
4. method according to claim 3 is it is characterised in that described Radio Resource control RRC information processed is specially wireless resource control connection request RRCConnectionRequest and disappears Breath.
5. method according to claim 3 is it is characterised in that described media access control MAC message processed is specially the MSG3 message of random access procedure.
6. method according to claim 1 it is characterised in that described cell-of-origin mark, Including：Physical Cell Identifier PCI, and/or Cell Global Identification CGI.
7. method according to claim 1 is it is characterised in that described first message is Radio resource control RRC message, or media access control MAC message.
8. method according to claim 7 is it is characterised in that described Radio Resource control RRC information processed is specially wireless resource control connection request RRCConnectionRequest and disappears Breath.
9. method according to claim 7 is it is characterised in that described medium education MAC message is specially the MSG3 message of random access procedure.
CN201510456015.3A 2015-07-29 2015-07-29 A kind of group call region management method under SC-PTM system Expired - Fee Related CN106412851B (en)

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PCT/CN2016/091954 WO2017016495A1 (en) 2015-07-29 2016-07-27 Group-calling region management method under sc-ptm system

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WO2010073701A1 (en) * 2008-12-26 2010-07-01 日本電気株式会社 Radio communication system, communication control method, radio base station, radio terminal, and storage medium
CN102123460B (en) * 2010-01-07 2014-11-05 普天信息技术研究院有限公司 Method for realizing group calling service handover in trunked mobile communication system

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Granted publication date: 20190723