CN101568158A - Method, system and device for plot switching of user equipment - Google Patents
Method, system and device for plot switching of user equipment Download PDFInfo
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- CN101568158A CN101568158A CNA2008100668794A CN200810066879A CN101568158A CN 101568158 A CN101568158 A CN 101568158A CN A2008100668794 A CNA2008100668794 A CN A2008100668794A CN 200810066879 A CN200810066879 A CN 200810066879A CN 101568158 A CN101568158 A CN 101568158A
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Abstract
The invention provides a method for the plot switching of user equipment, which comprises the following steps: a switching command is received, and the information carried by the switching command includes an indication that a target plot does not have an upstream resource; the switching command is reselected or switched into the plot with an upstream resource and covered with the plot without an upstream resource to stay according to the condition whether the RRC connection controlled by a wireless resource is released; and multimedia broadcast multicast service (MBMS) service of the plot without an upstream resource is received in the plot with the upstream resource. The invention also provides a system and a device for the plot switching of the user equipment. The user equipment can stay in the plot with the upstream resource and covered with the plot without an upstream resource to receive the MBMS service of the plot without an upstream resource by the technical scheme provided by the invention so as to enable the procedure of switching the user equipment to the plot without an upstream resource to be smoothly completed and ensure that the MBMS service is not interrupted in the switching process.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to the technology that switch the mobile subscriber equipment sub-district.
Background technology
Along with the diversified development of user to mobile communication business type demand, MBMS (MultimediaBroadcast Multicast Service, multimedia broadcast multicast services) business becomes one of communication service that has much development prospect.The MBMS business is meant that network side sends to a plurality of users in the network simultaneously to same multimedia service data, and a user who receives the MBMS business can receive one or more MBMS business simultaneously.The MBMS business mainly comprises streaming media service at present, for example video, and background business, and for example text is downloaded.The user can have other unicast service carrying out simultaneously when receiving the MBMS business.
At LTE (Long Term Evolution, Long Term Evolution) in the system, eNB (enhanced NodeB strengthens NodeB) provides E-UTRAN (Evolved Universal Terrestrial Radio AccessNetwork, the Universal Terrestrial Radio Access Network of evolution) realization of user's face and chain of command protocol function, the interface by X2 between the eNB comes mutual.In this system, receive the quality of MBMS business in order better to guarantee the user, introduced a kind of new transmission means SFN (Single FrequencyNetwork, single frequency network).MBSFN (Multimedia Broadcast multicast service SingleFrequency Network, multimedia multicast broadcast service single frequency network) adopts multi-carrier modulation technology, for certain specific MBMS business, adopt specific sub-carrier frequencies, and identical carrier frequency is all used in all sub-districts in certain zone, and when guaranteeing that the base station sends MBMS business datum radio frames, the base station of all sub-districts sends the radio frames with same MBMS service data content in this zone at synchronization, can merge signal with the subscriber equipment that guarantees to be in cell edge from the same MBMS business of different districts, make the signal strength signal intensity that receives strengthen, improved user's the quality of reception.The transmission means corresponding with MBSFN has SC-PTM (Single Cell-Point To Multi-point, single sub-district-point-to-multipoint) transmission means.
When being in sub-district that RRC (Radio Resource Control, Radio Resource control) connection status subscriber equipment uses or standard and changing, just think that switching has taken place this subscriber equipment.In the prior art, subscriber equipment switches to the normal switching flow of target eNB sub-district from eNB sub-district, source, after subscriber equipment is received the switching command of source eNB, carry out synchronously subscriber equipment and target eNB sub-district, and subscriber equipment carries out RACH (Random Access Channel, Random Access Channel) upstream operation inserts target eNB, and promptly subscriber equipment switches in the Target cell by switching flow.
But, if mobile scene is: be in the SC-PTM sub-district of the mobile subscriber of RRC connection status from mixed carrier, promptly support the sub-district of unicast service and MBMS business, move to no up resource sub-district, DC-MBSFN (Dedicated Carrier-Multimedia Broadcast multicastservice Single Frequency Network for example, special carrier frequency-multimedia multicast broadcast service single frequency network) sub-district, owing to do not have ascending resource in the DC-MBSFN sub-district, cause subscriber equipment can not do upstream operation therein, and can not reside in wherein, and then existing switching flow can not normally be finished.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of subscriber equipment to carry out the method, system and device that switch the sub-district, make the subscriber equipment that is in the RRC connection status can finish the flow process of switching to no up resource sub-district smoothly, and assurance MBMS business is not interrupted at handoff procedure.
A kind of subscriber equipment that the embodiment of the invention provides carries out the method that switch the sub-district, comprising: receive switching command, the information that this switching command carries comprises: Target cell is the indication of no up resource sub-district; Connect according to radio resource control RRC and whether to discharge, gravity treatment or switch to above-mentioned no up resource sub-district with resident in the sub-district that ascending resource is arranged that covers; At this multimedia broadcast multicast services MBMS business that receives above-mentioned no up resource sub-district in sub-district of ascending resource is arranged.
The embodiment of the invention also provides a kind of mobile communication system, this mobile communication system comprises source evolution base station eNB, target eNB and subscriber equipment, above-mentioned subscriber equipment, be used to receive switching command, whether connection discharges according to radio resource control RRC, gravity treatment or switch to and do not have up resource sub-district with resident in the sub-district that ascending resource is arranged that covers receives the multimedia broadcast multicast services MBMS business of above-mentioned no up resource sub-district in the above-mentioned sub-district that ascending resource arranged; The information that above-mentioned switching command carries comprises: Target cell is the indication of no up resource sub-district.
The embodiment of the invention also provides a kind of subscriber equipment, and this subscriber equipment comprises: receiving element, be used to receive switching command, and the information that above-mentioned switching command carries comprises: Target cell is the indication of no up resource sub-district; Whether control unit is used for connecting according to radio resource control RRC and discharges, gravity treatment or switch to above-mentioned no up resource sub-district with resident in the sub-district that ascending resource is arranged that covers; Business receive unit is used for the MBMS business that the above-mentioned no up resource of the reception sub-district, sub-district of ascending resource is arranged above-mentioned.
The technique scheme that provides by the embodiment of the invention, subscriber equipment is switched or gravity treatment to the sub-district that ascending resource arranged of no up resource sub-district with covering in resident, and the MBMS business of the above-mentioned no up resource of the middle reception sub-district of ascending resource is arranged at this, and then the flow process that this subscriber equipment switches to above-mentioned supreme capable resource sub-district can be finished smoothly, and assurance MBMS business is not interrupted at handoff procedure.
Description of drawings
Fig. 1 is that the subscriber equipment that the embodiment of the invention one provides carries out the method flow rough schematic view that switch the sub-district;
Fig. 2 is that the subscriber equipment that the embodiment of the invention two provides carries out the method flow rough schematic view that switch the sub-district;
Fig. 3 is that the subscriber equipment that the embodiment of the invention three provides carries out the method flow rough schematic view that switch the sub-district;
Fig. 4 is the mobile communication system rough schematic view that the embodiment of the invention four provides;
Fig. 5 is the user device architecture rough schematic view that the embodiment of the invention five provides.
Embodiment
Introduce the technical scheme that the embodiment of the invention provides in detail below in conjunction with the drawings and specific embodiments.
Among following each embodiment, the Target cell that subscriber equipment switches is the sub-district that does not have ascending resource, does not promptly have up resource sub-district, for example the DC-MBSFN sub-district.Following each embodiment is that example is described with the Target cell for the DC-MBSFN sub-district all.
Embodiment one
In the present embodiment, subscriber equipment (User Equipment, hereinafter referred UE) is a double-receiver, and this UE also has unicast service when receiving the MBMS business in the cell-of-origin, this cell-of-origin is the SC-PTM sub-district, and the Target cell that subscriber equipment switches is the DC-MBSFN sub-district.The MBMS switching entity is MME (Mobility Management Entity, a mobile management entity) in the present embodiment, and present embodiment is with the example that switches between the different MME.
As shown in Figure 1, the concrete steps of present embodiment are as follows:
Step 100, the UE context of preservation UE domain of dependence restrictive condition when connecting foundation or TA (Track Area, tracking area) renewal among the eNB of source.
Step 101, source eNB sends out measurement control order according to the above-mentioned zone restrictive condition to UE.Wherein can comprise the information relevant in the measurement control order and control the measurement of UE this cell MBMS service signal quality with MBMS.
Step 102, after UE receives above-mentioned measurement control order, measure this cell MBMS service signal quality, when finding that this cell MBMS service signal quality is lower than default threshold value, send out the request that neighbor cell MBMS service signal quality is measured in request to source eNB, after source eNB receives this measurement request, the frequency point information and the corresponding MBSFN subframe distribution advisory UE of the MBSFN sub-district of this MBMS business will be supported in the neighbor cell, UE measures the signal quality of above-mentioned neighbor cell according to frequency point information that obtains and corresponding subframe distribution situation, and send measurement report to source eNB, comprise MBMS service lists that UE receiving information such as signal quality in this measurement report with correspondence.The MBMS business and the UE that also carry the current reception of the preferential assurance of UE in the above-mentioned measurement report are the information of double-receiver.
Step 103, the measurement report that source eNB reports according to UE, by RRM (Radio ResourceManagement, RRM) whether the entity decision switches to UE in the adjacent DC-MBSFN sub-district, promptly whether allow UE receive the MBMS business of this DC-MBSFN sub-district, if decision switches to UE in the above-mentioned adjacent DC-MBSFN sub-district, then execution in step 104.
Step 104, source eNB sends MBMS handoff request message to source MME, and MBMSHO required for example comprises in the target eNB information of needs when preparing resource for UE in this message, and for example the MBMS business that receiving of UE is numbered.
Step 105, source MME sends above-mentioned MBMS handoff request message to target MME.
Step 106, target MME sends MBMS handoff request message to target eNB, comprises the information content that obtains in step 104 and 105 in this message, the information of needs when promptly preparing resource for UE in the target eNB.
Step 107, target eNB is to target MME responding MBMS handover request ack message, MBMS HO REQ ACK message for example, comprising the indicating target sub-district in this message is the configuration information of the relevant MBMS business with Target cell of indication information of DC-MBSFN sub-district, as radio bearer information.
Step 108, target MME sends above-mentioned handover request ack message to source MME.
Step 109, source MME sends switching command to source eNB, HANDOVERCOMMAND for example, comprise the content that handover request ack message comprises in above-mentioned steps 107 and 108 in this switching command, promptly the indicating target sub-district is the configuration information of the relevant MBMS business with Target cell of indication information of DC-MBSFN sub-district.
Step 110, source eNB sends above-mentioned switching command to UE.The indicating target sub-district that comprises in this switching command is the indication information of DC-MBSFN sub-district, and UE knows that according to this indication information Target cell is the DC-MBSFN sub-district.
In addition, need to prove, if Target cell is the DC-MBSFN sub-district, target eNB can not distributed C-RNTI (Cell Radio Network Temporary Identifier for UE so, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI), so UE can not know that for UE distributes C-RNTI Target cell is the DC-MBSFN sub-district according to target eNB yet.At this moment, the information that comprises in above-mentioned handover request ack message and the switching command can also comprise indicating target eNB does not distribute C-RNTI for UE information.
Step 111, UE receives above-mentioned switching command, to MAC (Media Access Control, medium access control) layer response message, for example the MAC ACK of eNB transmission in source to above-mentioned switching command.After source eNB receives above-mentioned MAC layer response message, discharge with the professional relevant context of MBMS, discharge relevant entity of MBMS and associated resource.
Step 112 after UE receives above-mentioned switching command, is carried out with target eNB synchronously.
Above-mentioned steps 111 and 112 does not have sequential restriction successively.
Step 113, because UE also has unicast service simultaneously in reception MBMS business, so not discharging RRC, UE do not connect, further, discharge because RRC connects, and unicast service also needs to switch, then UE carries out the normal flow that switch the sub-district, it is resident to select to switch to the sub-district that ascending resource is arranged with DC-MBSFN sub-district covering together according to the RRM algorithm, and receives the MBMS business of above-mentioned DC-MBSFN sub-district in this sub-district.
The subscriber equipment that present embodiment provides carries out cell switching method, resident by allowing UE switch in the sub-district that ascending resource is arranged that covers together with the DC-MBSFN sub-district, and in this sub-district the MBMS business in the receiving target DC-MBSFN sub-district, the flow process that UE is switched to the DC-MBSFN sub-district between MME can be finished smoothly, and assurance MBMS business is not interrupted at handoff procedure.
Embodiment two
In the present embodiment, UE is a single-receiver, only receives the MBMS business in the cell-of-origin, does not carry out unicast service simultaneously, and this cell-of-origin is the SC-PTM sub-district, and the Target cell that UE switches is the DC-MBSFN sub-district.The MBMS switching entity is MCE (Multi-cell/multicastCoordination Entity, many sub-district/multicast coordination entity) in the present embodiment, and present embodiment is with the example that switches between the different MCE.
Step 200, the UE context of preservation UE domain of dependence restrictive condition when connecting foundation or TA renewal among the eNB of source
Step 201, source eNB sends out measurement control order according to the above-mentioned zone restrictive condition to UE.Wherein can comprise the information relevant in the measurement control order and control the measurement of UE the MBMS service signal quality of this sub-district, adjacent MBSFN sub-district with MBMS.In the present embodiment, comprise the frequency point information and the corresponding MBSFN subframe distribution information of adjacent MBSFN sub-district in the above-mentioned measurement control order.
Step 202, after UE receives above-mentioned measurement control order, cell-of-origin MBMS service signal quality is measured, and the MBSFN signal quality of adjacent sub-district is measured, to source eNB reporting measurement reports according to the frequency point information and the corresponding MBSFN subframe distribution information of above-mentioned adjacent MBSFN sub-district.The information that this measurement report carries comprises that the MBMS business and the UE of the current reception of the preferential assurance of indication UE are the information of single-receiver.
Step 203, whether source eNB is switched to UE in the adjacent DC-MBSFN sub-district by the decision of RRM entity according to the measurement report of UE, promptly allow UE receive the MBMS business of adjacent DC-MBSFN sub-district, if decision switches to UE in the above-mentioned adjacent DC-MBSFN sub-district, then execution in step 204.
Step 204, source eNB sends MBMS handoff request message to source MCE, MBMSHO REQ for example, the information of needs when comprising target eNB in this message and be UE and preparing resource, for example professional numbering of MBMS that receiving of UE.
Step 205, source MCE transmits above-mentioned MBMS handoff request message to target MCE.
Step 206, target MCE sends MBMS handoff request message to target eNB, comprises by the step 204 and 205 information contents that obtain the information that needs when promptly target eNB is UE preparation resource in this message.
Step 207, target eNB sends the MBMS handover request ack message to target MCE, for example MBMS HO REQ ACK message comprises the indication information that Target cell is the DC-MBSFN sub-district, the configuration information of the relevant MBMS business of Target cell, as radio bearer information in this message.
Step 208, target MCE sends above-mentioned MBMS handover request ack message to source MCE.
Step 209, source MCE sends switching command to source eNB, HO COMMAND for example, this switching command carries the information that comprises in the MBMS handover request ack message in above-mentioned steps 207 and 208, and promptly Target cell is the indication information of DC-MBSFN sub-district, the configuration information of the relevant MBMS business of Target cell.
Step 210, source eNB sends above-mentioned switching command to UE.By comprising the indication information that the indicating target sub-district is the DC-MBSFN sub-district in this switching command, UE knows that Target cell is the DC-MBSFN sub-district.
In addition, need to prove that if Target cell is the DC-MBSFN sub-district, target eNB can be for UE distribute C-RNTI so, and then UE can for distributing C-RNTI, UE not know that Target cell is the DC-MBSFN sub-district according to target eNB yet.At this moment, the information that comprises in above-mentioned handover request ack message and the switching command can also comprise indicating target eNB does not distribute C-RNTI for UE information.
Step 211, UE receives above-mentioned switching command, to the MAC layer response message of eNB transmission in source to above-mentioned switching command, for example MAC ACK.After source eNB receives above-mentioned MAC layer response message, discharge with the professional relevant context of MBMS, discharge relevant entity of MBMS and associated resource.
Step 212 after UE receives above-mentioned switching command, is carried out with target eNB synchronously.
Above-mentioned steps 211 and 212 does not have sequential restriction successively.
Step 213, because UE does not have unicast service to exist, so discharging RRC, UE connects, further, because connecting, RRC discharges, then UE carries out the normal flow of sub-district gravity treatment, and gravity treatment to and DC-MBSFN sub-district be with resident in the sub-district that ascending resource is arranged that covers, and in this sub-district the MBMS business of the above-mentioned DC-MBSFN of reception sub-district.
The subscriber equipment that present embodiment provides carries out cell switching method, by allow the UE gravity treatment to the DC-MBSFN sub-district with resident in the sub-district that ascending resource is arranged that covers, and in this sub-district the MBMS business in the receiving target DC-MBSFN sub-district, the flow process that UE is switched to the DC-MBSFN sub-district between MCE can be finished smoothly, and assurance MBMS business is not interrupted at handoff procedure.
Need to prove, the MBMS switching entity of cell-of-origin and Target cell all is MME in the foregoing description one, among the embodiment two cell-of-origin and Target cell switching entity all be MCE, but, those skilled in the art should be understood that, according to system's needs the MBMS switching entity is made up equally and can realize the technical scheme that the foregoing description provides, for example the MBMS switching entity of cell-of-origin is MCE, and the MBMS switching entity of Target cell is MME; Or the MBMS switching entity of cell-of-origin is MME, and the MBMS switching entity of Target cell is MCE.
Embodiment three
Different with aforementioned two embodiment, the switching of UE is carried out under same MBMS switching entity MME in the present embodiment.As shown in Figure 3, the concrete steps of present embodiment are as follows:
Step 300, the UE context of preservation UE domain of dependence restrictive condition when connecting foundation or TA renewal among the eNB of source.
Step 301, source eNB sends out measurement control order according to the above-mentioned zone restrictive condition to UE.
Step 302 after UE receives above-mentioned measurement control order, is measured the MBMS service signal quality of adjacent MBSFN sub-district, and eNB sends out measurement report to the source.
If do not carry the frequency point information and the corresponding MBSFN subframe distribution information of adjacent MBSFN sub-district in the above-mentioned steps 301 in the measurement control order, then step 302 is with step 102, if carry the frequency point information and the corresponding MBSFN subframe distribution information of adjacent MBSFN sub-district in the step 301 in the measurement control order, then step 302 is with step 202, and concrete method of measurement repeats no more herein.
Step 303, whether source eNB is switched to UE in the adjacent DC-MBSFN sub-district by the decision of RRM entity according to the measurement report of UE, promptly allow UE receive the MBMS business of above-mentioned DC-MBSFN sub-district, if decision switches to UE in the adjacent DC-MBSFN sub-district, then execution in step 304.
Step 304, source eNB sends handoff request message to target eNB, and HO REQ for example comprises in the target eNB information of needs when preparing resource for UE in this message, and for example the MBMS business that receiving of UE is numbered.
Step 305, target eNB sends handover request ack message to source eNB, and for example HO REQACK comprises security-related configuration parameter in the target eNB of above distributing in this message; And comprise indication information and Target cell MBMS professional relevant configuration information, for example radio bearer configuration information that the indicating target sub-district is the DC-MBSFN sub-district.
Step 306, source eNB sends switching command to UE, HANDOVER COMMAND for example, comprise the configuration information that from target eNB, obtains in this order, comprise that security-related configuration parameter, indicating target sub-district are the indication information and the professional relevant configuration information of Target cell MBMS of DC-MBSFN sub-district.
Step 307, UE receives above-mentioned switching command, knows that Target cell is the DC-MBSFN sub-district, to the MAC layer response message of eNB transmission in source to above-mentioned switching command, for example MAC ACK.After source eNB receives above-mentioned MAC layer response message, discharge with the professional relevant context of MBMS, discharge relevant entity of MBMS and associated resource.
In addition, need to prove that if Target cell is the DC-MBSFN sub-district, target eNB can be for UE distribute C-RNTI so, and then UE also can know that Target cell is the DC-MBSFN sub-district according to target eNB not for UE distributes C-RNTI.At this moment, the information that comprises in handover request ack message and the switching command can also comprise indicating target eNB does not distribute C-RNTI for UE information.
Step 308 after UE receives above-mentioned switching command, is carried out with target eNB synchronously.
Above-mentioned steps 307 and 308 does not have sequential restriction successively.
Step 309, if UE only receives the MBMS business, or UE is single-receiver, then UE discharges RRC and connects execution in step 310a.If UE also has unicast service to exist receiving the MBMS business simultaneously, and UE is double-receiver, and then UE does not discharge RRC and connects execution in step 310b.
Step 310a, because RRC connects and to discharge, and UE is double-receiver, and UE carries out the sub-district reselection operation, gravity treatment to one and DC-MBSFN sub-district be with resident in the sub-district that ascending resource is arranged that covers, and receive the MBMS business of above-mentioned DC-MBSFN sub-district in this sub-district.
Step 310b, because connecting, RRC do not discharge, and unicast service also needs to switch, UE carries out the sub-district switching normal flow of clean culture, switch to one with the DC-MBSFN sub-district with resident in the sub-district that ascending resource is arranged that covers, and in this sub-district, receive the MBMS business of above-mentioned DC-MBSFN sub-district.If above-mentioned unicast service does not need to switch, then do not carry out switching flow.
The subscriber equipment that present embodiment provides carries out cell switching method, by allow UE switch to or gravity treatment and DC-MBSFN sub-district with resident in the sub-district that ascending resource is arranged that covers, and in this sub-district the MBMS business in the receiving target DC-MBSFN sub-district, the flow process that UE is switched to the DC-MBSFN sub-district in same MBMS switching entity MME can be finished smoothly, and assurance MBMS business is not interrupted at handoff procedure.
Embodiment four
Present embodiment provides a kind of mobile communication system, and as shown in Figure 4, this mobile communication system comprises: source eNB400, target eNB 401 and subscriber equipment 402.
Further, when subscriber equipment 402 is receiving the MBMS business and also has unicast service simultaneously, do not discharge RRC and connect; When subscriber equipment 402 only receives the MBMS business, discharge RRC and connect.And, when RRC connects when having discharged, carry out the sub-district gravity treatment, gravity treatment to the DC-MBSFN sub-district with resident in the sub-district that ascending resource is arranged that covers; Do not discharge and unicast service need switch the time when RRC connects, carry out the sub-district and switch, switch to the DC-MBSFN sub-district with resident in the sub-district that ascending resource is arranged that covers.
Further, source eNB400 sends measurement control order to subscriber equipment 402, and subscriber equipment 402 is measured the signal quality of adjacent MBSFN cell MBMS business according to this measurement control order, and to source eNB400 reporting measurement reports.The information that this measurement report carries comprises: whether indication subscriber equipment 402 is the information of multi-receiver, and/or the priority between unicast service and the MBMS business that receiving in the subscriber equipment 402.
Further, also comprise MBMS switching entity 403 in the above-mentioned mobile communication system, this MBMS switching entity 403 comprises mobile management entity MME, and/or many sub-districts multicast coordination entity MCE.Subscriber equipment 402 can switch in same MBMS switching entity 403, also can be in 403 switchings of MBMS switching entity.
Source eNB400 sends handoff request message to target eNB 401 or MBMS switching entity 403, comprises the MBMS information that subscriber equipment 402 is receiving in this handoff request message; Target eNB 401 or MBMS switching entity 403 send handover request ack message to source eNB400, comprise the indication information that Target cell is the DC-MBSFN sub-district in this handover request ack message, then source eNB400 is the indication information of DC-MBSFN sub-district according to above-mentioned indicating target sub-district, or above-mentioned target eNB is not described user equipment allocation C-RNTI, knows that described Target cell is the DC-MBSFN sub-district.
The mobile communication system that present embodiment provides, by allow the UE gravity treatment or switch to the DC-MBSFN sub-district with resident in the sub-district that ascending resource is arranged that covers, and in this sub-district the MBMS business in the receiving target DC-MBSFN sub-district, the flow process that UE is switched to the DC-MBSFN sub-district can be finished smoothly, and assurance MBMS business is not interrupted at handoff procedure.
Embodiment five
Present embodiment provides a kind of subscriber equipment 500, and as shown in Figure 5, this subscriber equipment 500 comprises: receiving element 501, lock unit 502, control unit 503 and business receive unit 506.
Receiving element 501 receives switching command, and the information that this switching command carries comprises: Target cell is the indication of DC-MBSFN sub-district; Lock unit 502 carries out synchronously with target evolution base station eNB; Whether control unit 503 connects according to radio resource control RRC and discharges, gravity treatment or switch to the DC-MBSFN sub-district with resident in the sub-district that ascending resource is arranged that covers; Business receive unit 506 receives the MBMS business of above-mentioned DC-MBSFN sub-district in the above-mentioned sub-district that ascending resource arranged.
More specifically, above-mentioned subscriber equipment 500 further comprises RRC connection management unit 504.When also having unicast service when subscriber equipment 500 receives the MBMS business, RRC connection management unit 504 does not discharge RRC and connects; When subscriber equipment 500 only received the MBMS business, RRC connection management unit 504 discharged RRC and connects.When RRC connects when having discharged, control unit 503 is carried out the sub-district gravity treatments, gravity treatment to the DC-MBSFN sub-district with resident in the sub-district that ascending resource is arranged that covers; Do not discharge and unicast service need switch the time when RRC connects, control unit 503 is carried out sub-districts and is switched, switch to the DC-MBSFN sub-district with resident in the sub-district that ascending resource is arranged that covers.
Further, subscriber equipment 500 also comprises measuring unit 505.Measuring unit 505 receives measurement control order, measures the signal quality of cell-of-origin MBMS business, and measures the signal quality of adjacent MBSFN cell MBMS business, reporting measurement reports according to above-mentioned measurement control order.Further, above-mentioned measuring unit 505 will indicate whether subscriber equipment is the information of multi-receiver, and/or the precedence information between unicast service and the MBMS business that receiving is carried in the above-mentioned measurement report and reports in the subscriber equipment.
Further, above-mentioned measuring unit 505 further comprises first measurement module 5051, acquisition module 5052 and second measurement module 5053.
The subscriber equipment that present embodiment provides, by allow the UE gravity treatment or switch to the DC-MBSFN sub-district with resident in the sub-district that ascending resource is arranged that covers, and in this sub-district the MBMS business in the receiving target DC-MBSFN sub-district, its flow process of switching to the DC-MBSFN sub-district can be finished smoothly, and assurance MBMS business is not interrupted at handoff procedure.
Part steps in the embodiment of the invention can utilize software to realize that corresponding software programs can be stored in the storage medium that can read, as CD or hard disk etc.
Above-mentioned specific embodiment is not in order to restriction the present invention; for those skilled in the art; all under the prerequisite that does not break away from the principle of the invention, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (23)
1, a kind of subscriber equipment carries out the method that switch the sub-district, it is characterized in that, comprising:
Receive switching command, the information that described switching command carries comprises: Target cell is the indication of no up resource sub-district;
Connect according to radio resource control RRC and whether to discharge, gravity treatment or switch to described no up resource sub-district with resident in the sub-district that ascending resource is arranged that covers;
In the described sub-district that ascending resource arranged, receive the multimedia broadcast multicast services MBMS business of described no up resource sub-district.
2, carry out the method that switch the sub-district according to the described subscriber equipment of claim 1, it is characterized in that, when when described subscriber equipment receives the MBMS business, also having unicast service, do not discharge described RRC and connect; When described subscriber equipment only receives the MBMS business, discharge described RRC and connect.
3, carry out the method that switch the sub-district according to the described subscriber equipment of claim 2, it is characterized in that,
Discharge if described RRC connects, then carry out the sub-district gravity treatment, gravity treatment is resident in the sub-district that ascending resource is arranged of described and described no up resource sub-district with covering;
Discharge if described RRC connects, and described unicast service needs to switch, then carry out the sub-district and switch, switch in the sub-district that ascending resource is arranged of described and described no up resource sub-district with covering resident.
4, carry out the method that switch the sub-district according to the described subscriber equipment of claim 1, it is characterized in that, described Target cell comprises for the indication of no up resource sub-district: the indicating target sub-district is the indication information of no up resource sub-district, and/or indicating target eNB is not the information of described user equipment allocation Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI.
5, carry out the method that switch the sub-district according to any described subscriber equipment of claim of claim 1 to 4, described no up resource sub-district is special carrier multimedia broadcast multicast services single frequency network DC-MBSFN sub-district.
6, carry out the method that switch the sub-district according to the described subscriber equipment of claim 1, it is characterized in that, further comprise before the described reception switching command:
According to measurement control order, measure the MBMS service signal quality of cell-of-origin and adjacent multimedia broadcast multicast services single frequency network MBSFN sub-district, and reporting measurement reports.
7, carry out the method that switch the sub-district according to the described subscriber equipment of claim 6, it is characterized in that, comprise adjacent MBSFN subdistrict frequency point information and MBSFN subframe distribution information in the described measurement control order, according to described adjacent MBSFN subdistrict frequency point information and MBSFN subframe distribution information, measure the MBMS service signal quality of described adjacent MBSFN sub-district.
8, carry out the method that switch the sub-district according to the described subscriber equipment of claim 6, it is characterized in that,
When the MBMS of cell-of-origin service signal quality is lower than predetermined threshold value, obtain adjacent MBSFN subdistrict frequency point information and MBSFN subframe distribution information, and, measure the MBMS service signal quality of described adjacent MBSFN sub-district according to described adjacent MBSFN subdistrict frequency point information and MBSFN subframe distribution information.
9, a kind of mobile communication system, described mobile communication system comprises source evolution base station eNB, target eNB and subscriber equipment, it is characterized in that,
Described subscriber equipment, be used to receive switching command, whether connection discharges according to radio resource control RRC, gravity treatment or switch to and do not have up resource sub-district with resident in the sub-district that ascending resource is arranged that covers, and in the described sub-district that ascending resource arranged, receive the multimedia broadcast multicast services MBMS business of described no up resource sub-district;
The information that described switching command carries comprises: Target cell is the indication of no up resource sub-district.
According to the described mobile communication system of claim 9, it is characterized in that 10, described source eNB is used for sending measurement control order to described subscriber equipment; Then
Described subscriber equipment is further used for, and according to described measurement control order, measures the MBMS service signal quality of adjacent multimedia broadcast multicast services single frequency network MBSFN sub-district, and to described source eNB reporting measurement reports.
According to the described mobile communication system of claim 9, it is characterized in that 11, described mobile communication system further comprises the MBMS switching entity.
According to the described mobile communication system of claim 11, it is characterized in that 12, described MBMS switching entity comprises: mobile management entity MME, and/or many sub-districts multicast coordination entity MCE.
13, according to the described mobile communication system of claim 11, it is characterized in that, described target eNB or described MBMS switching entity are further used for, and send handover request ack message, comprise the indication of Target cell for no up resource sub-district in the described handover request ack message.
14, according to the arbitrary described mobile communication system of claim 9 to 13, it is characterized in that, described Target cell comprises for the indication of no up resource sub-district: the indicating target sub-district is the indication information of no up resource sub-district, and/or indicating target eNB is not the information of described user equipment allocation Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI.
15, according to the described communication system of claim 14, described no up resource sub-district is special carrier multimedia broadcast multicast services single frequency network DC-MBSFN sub-district.
16, a kind of subscriber equipment is characterized in that, described subscriber equipment comprises:
Receiving element is used to receive switching command, and the information that described switching command carries comprises: Target cell is the indication of no up resource sub-district;
Whether control unit is used for connecting according to radio resource control RRC and discharges, gravity treatment or switch to described no up resource sub-district with resident in the sub-district that ascending resource is arranged that covers;
Business receive unit is used for the multimedia broadcast multicast services MBMS business that the described no up resource of the reception sub-district, sub-district of ascending resource is arranged described.
According to the described subscriber equipment of claim 16, it is characterized in that 17, described subscriber equipment further comprises: RRC connection management unit is used for not discharging described RRC and connecting when described subscriber equipment also has unicast service when receiving the MBMS business; When described subscriber equipment only receives the MBMS business, discharge described RRC and connect;
Described control unit is further used for, and when described RRC connects when having discharged, carries out the sub-district gravity treatment, and gravity treatment is resident in the sub-district that ascending resource is arranged of described and described no up resource sub-district with covering; Do not discharge and described unicast service need switch the time when described RRC connects, carry out the sub-district and switch, switch in the sub-district that ascending resource is arranged of described and described no up resource sub-district with covering resident.
18, according to the described subscriber equipment of claim 16, it is characterized in that, the Target cell that described receiving element receives comprises for the indication of no up resource sub-district: the indicating target sub-district is the indication information of no up resource sub-district, and/or indicating target eNB is not the information of described user equipment allocation Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI.
19, according to the described subscriber equipment of claim 16, it is characterized in that, described subscriber equipment further comprises: measuring unit, be used to receive measurement control order, and measure adjacent multimedia broadcast multicast services single frequency network MBSFN cell MBMS service signal quality, and reporting measurement reports according to described measurement control order.
20, according to the described subscriber equipment of claim 19, it is characterized in that, described measuring unit, be further used for, according to described adjacent MBSFN subdistrict frequency point information that comprises in the described measurement control order and MBSFN subframe distribution information, measure the signal quality of described adjacent MBSFN cell MBMS business, and reporting measurement reports.
According to the described subscriber equipment of claim 19, it is characterized in that 21, described measuring unit further comprises,
First measurement module is used to measure this cell MBMS service signal quality;
Acquisition module is used for obtaining adjacent MBSFN subdistrict frequency point information and MBSFN subframe distribution information when described first measurement module is measured this cell MBMS quality of service and is lower than predetermined threshold value;
Second measurement module is used for the signal quality according to described adjacent MBSFN subdistrict frequency point information and the described adjacent MBSFN cell MBMS business of MBSFN subframe distribution information measurement, and reporting measurement reports.
22, according to the arbitrary described subscriber equipment of claim 19 to 21, it is characterized in that, described measuring unit, be further used for, whether with the described subscriber equipment of indication is the information of multi-receiver, and/or the precedence information between unicast service and the MBMS business that receiving is carried in the described measurement report and reports in the described subscriber equipment.
According to the arbitrary described subscriber equipment of claim 16 to 21, it is characterized in that 23, described no up resource sub-district is special carrier multimedia broadcast multicast services single frequency network DC-MBSFN sub-district.
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