CN1946030A - Set up method and its system for broadcast multi-cast service transmission mode - Google Patents
Set up method and its system for broadcast multi-cast service transmission mode Download PDFInfo
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- CN1946030A CN1946030A CNA2006101430411A CN200610143041A CN1946030A CN 1946030 A CN1946030 A CN 1946030A CN A2006101430411 A CNA2006101430411 A CN A2006101430411A CN 200610143041 A CN200610143041 A CN 200610143041A CN 1946030 A CN1946030 A CN 1946030A
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Abstract
This invention discloses a method for setting broadcast multicast service transmission mode and its system, in which, when calculating UE receiving the assigned broadcast multicast service, it only calculates the UE numbers with said local area as the optimum one to determine the transmission mode of the service in such area so as to avoid the influence generated from the statistic to UE of non-optimum areas in the connection with them during the process of soft switch, in which, the statistic to UE numbers is done by CRNC of the area, when it is taken as the DRNC of UE of the area, the DRNC gets the optimum area information of said UE from the SRNC, when the optimum area of said UE is changed, its SRNC informs the change to the original and the new optimum areas.
Description
Technical field
The present invention relates to wireless communication field, particularly the broadcast multi-broadcasting technology.
Background technology
Through nearly fast development decades, the crowd that mobile communication is benefited is more and more wider, but the business that it provided is still based on phone and message.Fast development along with internet (Internet), a large amount of mobile multi-media services emerge, the some of them mobile multi-media service requires a plurality of subscriber equipment (UserEquipment, be called for short " UE ") can receive identical data simultaneously, for example video request program, television broadcasting, video conference, online education, interactive game etc., on cable network, can adopt internetworking agreement (Internet Protocol is called for short " IP ") multicast and broadcast technology to realize at present.But because particular network structure, functional entity and wave point etc. that mobile communications network had are all different with the wire communication IP network, and these mobile multi-media services are compared with general data service, have characteristics such as data volume is big, longer duration, delay sensitive, existing IP multicast and broadcast technology can not be directly applied for mobile network.
In order to effectively utilize the mobile network resource, realize the application of mobile multi-media service, third generation partner program (3rd Generation Partnership Project, abbreviation " 3GPP ") multimedia broadcast-multicast service (Multimedia Broadcast/Multicast Service is called for short " MBMS ") has been proposed.Its objective is provides the point-to-multipoint service of a data source to a plurality of UE send data in mobile communications network, realize that Internet resources are shared, raising utilization rate of network resource, the interface resource of especially eating dishes without rice or wine.The MBMS business that 3GPP proposes can not only realize the classes of messages multicast and the broadcasting of plain text low rate, and can also realize the multicast and the broadcasting of high-speed multimedia business, and this has complied with the trend of mobile data development undoubtedly.
The MBMS architecture as shown in Figure 1, wherein, broadcast multicast service center (BroadcastMulticast Service Center, be called for short " BM-SC ") be mobile network functional entity in order to support that MBMS is professional and newly-increased, it is the inlet of content supplier, be used for authorizing and initiating the MBMS bearer service, and plan transmits the MBMS content to schedule at mobile network.In addition, in order to support the MBMS business, at UE, universal mobile telecommunications system grounding wireless access network (UMTS TerrestrialRadio Access Network, be called for short " UTRAN "), the enhancing data wireless access network of global system for mobile communications and evolution thereof (GSM EDGE Radio Access Network, be called for short " GERAN "), GPRS serving GPRS support node (Serving GPRS Support Node, be called for short " SGSN "), increased the relevant function of MBMS respectively on the gateway GPRS supporting node (GGSN) functional entitys such as (GPRS Gateway Support Node are called for short " GGSN ").
The MBMS business comprises multicast pattern and broadcast mode, and wherein multicast pattern needs user's corresponding multicast group of contracting, and carries out activation of service, and produces corresponding charge information.
Data transfer phase in broadcast mode business and multicast pattern business, the MBMS business is transmitted information between UTRAN and UE mode has two kinds of patterns: put multiple spot (Point to Multipoint, be called for short " PTM ") pattern and point-to-point (Point to Point is called for short " PTP ") pattern.
So-called ptp mode is meant to each UE in the sub-district sets up the carrying of a point-to-point, as at Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, abbreviation " WCDMA ") can use dedicated channel (Dedicate Channel in the system, be called for short " DCH ") or high speed downlink packet access (High Speed Downlink Packet Access is called for short " HSDPA ") mode; So-called PTM pattern is meant that setting up a public transmission channel in the sub-district provides service for all UE, in the WCDMA system, can pass through Secondary Common Control Physical Channel (Primary Common ControlPhysical Channel is called for short " S-CCPCH ").
It is multiple that resource in the wireless communication networks mainly contains soft resources (power), hardware resources (sign indicating number, transmission, Channel Elements) etc.For ptp mode, the UE of each ptp mode connects and can take a hardware resources, its power take because power control mechanism is arranged along with UE apart from the distance of base station with whether have barrier to block and different; For the PTM pattern, all UE share a Common transport channel, therefore only take a hardware resources, but, also can receive data with the UE that guarantees cell edge so must consume more power owing to must guarantee that all UE all can obtain service in the sub-district.
Because in a sub-district, along with the difference of time period, the UE number that receives the MBMS business is also different.In order to reduce transmitted power as far as possible, and save the air interface transfer resource, the MBMS business is used different service bearing modes under different situations.Owing under ptp mode, can use power control, therefore use this transmission mode at the UE number more after a little while, can save the transmitted power of base station, reduce the power consumption of base station.But under the situation that the UE number increases, use the ptp mode bearer service, expend many Radio Resources, and make base-station transmitting-power bigger, thereby use PTM mode carrying business more for a long time at the UE number usually, to save the air interface Radio Resource, reduce the power consumption of base station.
When the professional beginning of MBMS transfer of data, radio network controller (Radio NetworkController, be called for short " RNC ") at first add up in the sub-district this professional interested UE by statistics (counting) function, if the UE number surpasses certain thresholding (being called the Ncounting thresholding), then use the PTM pattern; If no, then use ptp mode.Wherein, this RNC is the control radio network controller (Controlling Radio Network Controller is called for short " CRNC ") of sub-district.
For the sub-district of adopting the PTM pattern to send, RNC periodically initiates the counting process, adds up the UE number again and determines whether to continue to adopt the PTM pattern, is less than Ncounting if find the UE number, then transfers the use ptp mode to.
For the sub-district of adopting ptp mode to send, RNC also needs to add up the number that MBMS UE connects, and surpasses certain thresholding (being called the Nptp-ptm thresholding) in case find the number that UE connects, and then transfers the PTM pattern of using to; Otherwise continue to use ptp mode.
In actual applications, there is following problem in prior art: according to existing statistical method statistics UE number, determine the transmission mode of MBMS business, it is disconnected to be easy to generate erroneous judgement, sets up unnecessary Common transport channel, thereby causes the wasting of resources.
Cause the main cause of this situation to be, because at code division multiple access (Code Division MultipleAccess, abbreviation " CDMA ") in the system, there is soft handover, same UE may connect in a plurality of sub-districts, therefore directly the MBMS UE linking number of statistics sub-district is added up soft switching link interior possibly, thereby sets up unnecessary common signal channel.For example, suppose Ncounting=2, promptly change to the PTM pattern more than or equal to 2 the time when UE number in the sub-district.As shown in Figure 2, all adopt ptp mode MBMS transmission business when first three sub-district, UE1 and UE2 are just carrying out soft handover among the figure, and UE1 has set up two link A and B, and its optimum subdistrict is sub-district 1; UE2 has set up two link C and D, and its optimum subdistrict is sub-district 3, and this moment is for sub-district 2, the MBMS UE linking number of its statistics is 2, reached the Ncounting thresholding, sub-district 2 should change into adopts the PTM mode transfer, promptly must set up a Common transport channel.Yet because UE is the receive mode that determines this UE according to the transmission mode of optimum subdistrict, ptp mode is still adopted in sub-district 1 and sub-district 3, so UE1 and UE2 all adopt ptp mode to receive, (sub-district 2 can not these links of Force Deletion also just can not delete link B in the sub-district 2 and C, otherwise UE1 and UE2 will cause serious uplink interference to sub-district 2), and be not the UE of optimum subdistrict with sub-district 2 in the sub-district 2, therefore the Common transport channel of sub-district 2 foundation does not just have UE to receive at all, belongs to the wasting of resources.
Summary of the invention
The technical problem underlying that each execution mode of the present invention will solve provides a kind of method to set up and system thereof of broadcast multi-cast service transmission mode.
For solving the problems of the technologies described above, the invention provides a kind of method to set up of broadcast multi-cast service transmission mode, comprise following steps: statistics receives the designated broadcast multicast service and is the number of the subscriber equipment of optimum subdistrict with this sub-district in the sub-district;
Determine the transmission mode of this BroadCast MultiCast Service according to the number of user equipment of being added up in this sub-district.
The present invention also provides a kind of system that is provided with of broadcast multi-cast service transmission mode, comprises:
Be used for adding up and receive the designated broadcast multicast service in the sub-district and be the unit of number of the subscriber equipment of optimum subdistrict with this sub-district;
Be used for determining the unit of this BroadCast MultiCast Service in the transmission mode of this sub-district according to the number of user equipment of being added up.
By relatively finding, the main distinction of technical scheme of the present invention and prior art is, when in the statistics sub-district, receiving the UE of designated broadcast multicast service, only statistics is the UE number of optimum subdistrict with this sub-district, determine the transmission mode of this BroadCast MultiCast Service according to the UE number of being added up in this sub-district, thereby avoid UE in soft switching process with non-optimum subdistrict between be connected non-optimum subdistrict UE statistics exerted an influence, and then avoid this non-optimum subdistrict under unnecessary situation, set up Common transport channel, should business cause the problem of system resource waste by the PTM mode transfer.
The statistics of UE number is undertaken by the CRNC of sub-district, at floating radio network controller (the Drift Radio Network Controller of CRNC as UE under having jurisdiction over, be called for short " DRNC ") time, promptly move to the UE of this sub-district for striding RNC, this DRNC obtains the optimum subdistrict information of this UE from the service wireless network controller (Serving Radio Network Controller is called for short " SRNC ") of this UE.Can when asking this DRNC to connect for this UE, SRNC obtain the optimum subdistrict information of this UE from this SRNC.Make this DRNC (being the CRNC of sub-district) can obtain the optimum subdistrict information of all UE in this sub-district, accurately add up the UE number that receives BroadCast MultiCast Service in this sub-district, thereby can correctly judge current only transmission mode.
When the optimum subdistrict of UE changed, its SRNC in time with its former optimum subdistrict of change notification and new optimum subdistrict, made that the business statistics of each sub-district can be more accurate.
At the UE of ptp mode sub-district number during greater than first switching threshold, by this BroadCast MultiCast Service of PTM mode transfer, saving link circuit resource, at the UE of PTM mode cell number during less than second switching threshold, transmit this BroadCast MultiCast Service by ptp mode, to reduce the consumption of power resource.First switching threshold of PTP to PTM is set to second switching threshold greater than PTM to PTP, thereby receive professional in this sub-district but its optimum subdistrict when being not the UE of this sub-district when UE number statistical result comprises those, can reduce the influence of this class UE to a certain extent the cell transmission pattern.Avoid the sub-district to set up unnecessary Common transport channel, cause the waste of transfer resource and power resource.
Description of drawings
Fig. 1 is a MBMS system assumption diagram in the prior art;
Fig. 2 is the connection diagram of soft handover UE and sub-district in the prior art;
Fig. 3 is the method to set up flow chart according to the broadcast multi-cast service transmission mode of first embodiment of the invention;
Fig. 4 is the system construction drawing that is provided with according to the broadcast multi-cast service transmission mode of third embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Among the present invention, when in the statistics sub-district, receiving the UE number of designated broadcast multicast service, only statistics is the UE number of optimum subdistrict with this sub-district, determine the transmission mode of this BroadCast MultiCast Service according to the UE number of being added up in this sub-district, thereby avoid UE in soft switching process with non-optimum subdistrict between be connected the UE of non-optimum subdistrict statistics exerted an influence, set up unnecessary Common transport channel.
Below first embodiment of the invention is described, first embodiment of the invention relates to a kind of method to set up of broadcast multi-cast service transmission mode, as shown in Figure 3.
At BroadCast MultiCast Service, as the MBMS business, during beginning, enter step 301, statistics receives this MBMS in the sub-district professional and be the UE number of optimum subdistrict with this sub-district.
This statistics can be finished by the CRNC of sub-district, specifically, CRNC obtains the optimum subdistrict information of the UE that needs to receive this MBMS business in this sub-district respectively, if the SRNC of this UE is the CRNC of this sub-district, promptly, can directly obtain the optimum subdistrict information of this UE for the situation of CRNC and SRNC unification; If the SRNC of this UE is not the CRNC of this sub-district, that is to say that this UE strides RNC and moves to this sub-district, the CRNC of this sub-district is the DRNC of this UE, the situation that promptly corresponding CRNC separates with SRNC, then CRNC obtains the optimum subdistrict information of this UE from the SRNC of this UE.CRNC can ask DRNC (being the CRNC of this sub-district, is DRNC for UE) when setting up the Radio Link of MBMS business for this UE at the SRNC of this UE, obtain the optimum subdistrict information of this UE.
Obtain this optimum subdistrict information, need the Iur process among the expansion 3GPP agreement TS25.423, support SRNC to send the optimum subdistrict information of UE to DRNC.
Can expand original wireless connections foundation request " Radio Link Setup Request " message and/or wireless connections increase request " Radio Link Addition Request " message among the TS25.423, promptly in " RadioLink Setup Request " message and " Radio Link Addition Request " message, add the optimum subdistrict indication, be used to transmit this optimum subdistrict information, as shown in Table 1 and Table 2.Wherein, table 1 shows information element (the Information Element that comprises in " RadioLink Setup Request " message, be called for short " IE "), table 2 shows the information element that comprises in " Radio Link Addition Request " message, and dash area is the optimum subdistrict indication of expanding in two message.
The CRNC of sub-district only adds up in the sub-district this MBMS business of reception, and is the UE number of optimum subdistrict with this sub-district.Thereby avoid UE in soft switching process with non-optimum subdistrict between be connected the UE of non-optimum subdistrict statistics exerted an influence.
| IE/Group Name information element/group name claims | Presence exists | The Range scope | IE Type and Reference IE type and parameter | The Semantics Description meaning of one's words is described | Criticality danger | Assigned Criticality distributes dangerous |
| Message Type information type | M | 9.2.1.40 | YES is | The reject refusal | ||
| Transaction ID Transaction Identifier | M | 9.2.1.59 | - | |||
| SRNC-ID SRNC sign | M | RNC-ID 9.2.1.50 | YES is | The reject refusal | ||
| S-RNTI | M | 9.2.1.53 | YES is | The reject refusal | ||
| D-RNTI | O | 9.2.1.24 | YES is | The reject refusal | ||
| Allowed Queuing Time allows the stand-by period | O | 9.2.1.2 | YES is | The reject refusal | ||
| UL DPCH Information UL DPCH information | 1 | YES is | The reject refusal | |||
| The irregular coding of＞UL Scrambling Code UL | M | 9.2.2.53 | - | |||
| The minimum UE channel code of＞Min UL Channelisation Code Length length | M | 9.2.2.25 | - | |||
| The maximum UL DPDCH of＞Max Number of UL DPDCHs number | C- CodeLen | 9.2.2.24 | - | |||
| ＞Puncture Limit shrinks restriction | M | 9.2.1.46 | For the UL. | - | ||
| ＞TFCS | M | 9.2.1.63 | - | |||
| ＞UL DPCCH Slot Format UL DPDCH time slot format | M | 9.2.2.52 | - | |||
| The up linking objective signal to noise ratio of＞Uplink SIR Target | O | Uplink SIR 9.2.1.69 | - | |||
| ＞Diversity mode diversity mode | M | 9.2.28 | - - | |||
| ＞Not Used | O | NULL | - | |||
| ＞Not Used | O | NULL | - | |||
| ＞DPC Mode DPC pattern | O | 9.2.2.12A | YES is | The reject refusal | ||
| The UL DPDCH indication of＞UL DPDCH Indicator for E-DCH operation E-DCH operation | C-EDCHInf o | 9.2.2.52A | YES is | The reject refusal | ||
| DL DPCH Information DL DPCH information | 0..1 | YES is | The reject refusal | |||
| ＞TFCS | M | 9.2.1.63 | - | |||
| ＞DL DPCH Slot Format DL DPCH time slot format | M | 9.2.2.9 | - | |||
| ＞Number of DL Channelisation Codes DL chnnel coding number | M | 9.2.2.26A | - | |||
| ＞TFCI Signalling Mode TFCI signal mode | M | 9.2.2.46 | - | |||
| ＞TFCI Presence TFCI exists | C- SlotFormat | 9.2.1.55 | - | |||
| ＞Multiplexing Position frequency multiplexing technique position | M | 9.2.2.26 | - | |||
| ＞Power Offset Information power offset information | 1 | - | ||||
| ＞＞PO1 | M | Power Offset 9.2.2.30 | Power offset for the TFCI bits. | - |
| IE/Grup Name information element/group name claims | Presence exists | The Range scope | IE Type and Reference IE type and parameter | The Semantics Description meaning of one's words is described | Criticality danger | Assigned Criticality distributes dangerous |
| ＞Delayed Activation delays activating | O | 9.2.1.19Aa | YES | reject | ||
| ＞Cell Portion ID cell ID | O | 9.2.2.E | YES | ignore | ||
| The special E-DCH information of＞RL specific E-DCH Information RL | O | 9.2.2.35a | YES | reject | ||
| ＞E-DCH RL Indication E-DCH RL indication | O | 9.2.2.4E | YES | reject | ||
| Transmission Gap Pattern Sequence Information sends the clearance mode sequence information | O | 9.2.2.47A | YES | reject | ||
| Active Pattern Sequence Information enable mode sequence information | O | 9.2.2.A | YES | reject | ||
| Permanent NAS UE Identity persistence NAS UE indication | O | 9.2.1.73 | YES | ignore | ||
| The indication of DL Power Balancing Information DL power-balance | O | 9.2.2.10A | YES | ignore | ||
| HS-DSCH Information HS-DSCH information | O | HS-DSCH FDD Information 9.2.2.19a | YES | reject | ||
| HS-PDSCH RL ID HS-PDSCH RL sign | C- InfoHSDS CH | RL ID 9.2.1.49 | YES | reject | ||
| MBMS Bearer Service List MBMS transmits service list | 0...<maxn oofMBMS > | GLOBAL | notify | |||
| ＞TMGI | M | 9.2.1.80 | - | |||
| E-DPCH Information E-DPCH information | 0..1 | YES | reject | |||
| ＞Maximum Set of DPDCHs DPDCH is maximum to be provided with | M | 9.2.2.24e | - | |||
| ＞Puncture Limit shrinks restriction | M | 9.2.1.46 | - | |||
| ＞E-TFCS Information E-TFCS information | M | 9.2.2.4G | - | |||
| ＞E-TTI | M | 9.2.2.4J | - | |||
| ＞E-DPCCH Power Offset E-DPCCH power excursion | M | 9.2.2.4K | - | |||
| ＞E-RGCH 2-Index-Step Threshold | M | 9.2.2.64 | - | |||
| ＞E-RGCH 3-Index-Step Threshold | M | 9.2.2.65 | - | |||
| ＞HARQ Info for E-DCH | M | 9.2.2.66 | - | |||
| ＞HS-DSCH Configured Indicator HS-DSCH disposes indication | M | 9.2.2.19C | - | |||
| E-DCH FDD Information E-DCH FDD information | C-EDCHInf o | 9.2.2.4B | YES | reject | ||
| Serving E-DCH RL service E-DCH RL | O | 9.2.2.38C | YES | reject | ||
| F-DPCH Information F-DPCH information | 0..1 | YES | reject | |||
| ＞Power Offset Information power offset information | 1 | - | ||||
| ＞＞PO2 | M | Power Offset | Power offset for the TPC | - |
| IE/Group Name information element/group name claims | Presence exists | The Range scope | IE Type and Reference IE type and parameter | The Semantics Description meaning of one's words is described | Criticality danger | Assigned Criticality distributes dangerous |
| 9.2.2.30 | bits. | |||||
| ＞FDD TPC Downlink Step Size FDD TPC down link step-length | M | 9.2.2.16 | - | |||
| The restriction of＞Limited Power Increase flash-up | M | 9.2.2.21A | - | |||
| ＞Inner Loop DL PC Status | M | 9.2.2.21a | - | |||
| Initial DL DPCH Timing Adjustment Allowed | O | 9.2.2.21b | YES | ignore | ||
| DCH Indisator For E-DCH-HSDPA Operation | O | 9.2.2.67 | YES | reject |
Table 1
| shall overlap with the existing one) or none of the transmission gap sequences is activated. | ||||||
| DPC Mode DPC pattern | O | 9.2.2.12A | YES | reject | ||
| Permanent NAS UE Identity persistence NAS UE indication | O | 9.2.1.73 | YES | ignore | ||
| Serving E-DCH RL service E-DCH RL | O | 9.2.2.38C | YES | reject | ||
| Initial DL DPCH Timing Adjustment Allowed | O | 9.2.2.21b | YES | ignore | ||
| HS-DSCH Serving Cell Change Information HS-DSCH service cell information | O | 9.2.2.19f | YES | reject | ||
| Serving Cell Change CFN Serving cell change CFN | O | CFN 9.2.1.9 | YES | reject | ||
| E-DPCH Infomation E-DPCH information | 0..1 | YES | reject | |||
| ＞Maximum Set of E-DPDCHs E-DPDCH is maximum to be provided with | M | 9.2.2.24e | - | |||
| ＞Puncture Limit shrinks restriction | M | 9.2.1.46 | - | |||
| ＞E-TFCS Information E-TFCS information | M | 9.2.2.4G | - | |||
| ＞E-TTI | M | 9.2.2.4J | - | |||
| ＞E-DPCCH Power Offset E-DPCCH power excursion | M | 9.2.2.4K | - | |||
| ＞E-RGCH 2-Index-Step Threshold | M | 9.2.2.64 | - | |||
| ＞E-RGCH 3-Index-Step Threshold | M | 9.2.2.65 | - | |||
| ＞HARQ Info for E-DCH | M | 9.2.2.66 | - | |||
| ＞HS-DSCH Configured Indicator HS-DSCH disposes indication | M | 9.2.2.19C | YES | reject | ||
| E-DCH FDD Information E-DCH FDD information | C-EDCHIn fo | 9.2.2.4B | YES | reject |
Table 2
Then enter step 302, CRNC determines the transmission mode of this sub-district according to the UE number of being added up.A thresholding specifically can be set, if the UE number is greater than this thresholding then this sub-district is set to the PTM mode cell, by this MBMS business of PTM mode transfer; If the UE number is less than this thresholding, then this sub-district is set to the ptp mode sub-district, sets up point-to-point and connect in the sub-district, transmits this MBMS business.Owing to do not comprise being connected between the UE and non-optimum subdistrict in the soft switching process in the UE number of being added up, thereby avoid the sub-district to be subjected to the influence of these connections to set up Common transport channel, but linchpin many UE down still adopts ptp mode to receive the MBMS business, make the Common transport channel of being set up vacant or have only less UE to receive this MBMS business, cause the waste of transfer resource and power resource by the PTM pattern.
Then enter step 303, in the process of the professional transmission of MBMS, CRNC can periodicity emphasis adds up the UE number of this sub-district, if the current use ptp mode in this sub-district, then during greater than first switching threshold of PTP to PTM pattern, use this MBMS business of PTM mode transfer instead at the UE number of this sub-district statistics; If the current use in this sub-district PTM pattern during to second switching threshold of ptp mode, is used ptp mode instead and is transmitted this MBMS business less than PTM at the UE number of this sub-district statistics.Wherein, first thresholding is more than or equal to second thresholding.By between two thresholdings, drop being set, make in UE number statistical result not exclusively accurate, may also comprise those and receive professional in this sub-district but its optimum subdistrict when being not the UE of this sub-district, can reduce the influence of this class UE to a certain extent the cell transmission pattern.
When heavily adding up, CRNC must be the UE number of optimum subdistrict according to this MBMS business of reception in the current optimum subdistrict Information Statistics sub-district of each UE and with this sub-district.Situation for CRNC and SRNC unification, CRNC can directly obtain the optimum subdistrict change situation of UE, and the situation of separating with SRNC for CRNC is when the optimum subdistrict of this UE takes place to change, need this sub-district of SRNC proactive notification CRNC of this UE, thereby guarantee the correctness of CRNC statistics.
In order to make SRNC when the UE optimum subdistrict changes, can in time notify this CRNC, can expand direct information transmission " the DIRECT INFORMATION TRANSFER " message among the TS25.423, use at present this message to finish the transmission of the first-selected frequency point information of the channel type information of MBMS business and MBMS business in the agreement, in the present embodiment, in this message, add the optimum subdistrict sign, be used to transmit the optimum subdistrict information after UE upgrades, shown in table 3 dash area.
Table 3
Said in the present embodiment sub-district is for using the sub-district of ptp mode MBMS transmission, and the optimum subdistrict information of SRNC transmission is the optimum subdistrict information that receives the UE of MBMS business with ptp mode.Wherein, the optimum subdistrict information of UE is specifically shown in table 4 and table 5.
| IE/Group Name information element/group name claims | Presence exists | The Range scope | IE Type and Reference IE type and parameter | The Semantics Description meaning of one's words is described |
| TMGI | M | 9.2.1.80 | ||
| PTP UE List PTP UE tabulation | 0..<maxnoofUEs> | |||
| ＞S-RNTI | M | 9.2.1.53 | ||
| ＞Best Cell C-ID optimum subdistrict sign | C-Case1 | 9.2.1.6 | ||
| Optimum subdistrict under other RNC of＞Best Cell In Other RNC | C-Case2 | ENUM(TRUE) |
Table 4
| The Condition condition | The Explanation explanation |
| Case2 | In Target RNC following time, this IE must exist at this optimum subdistrict. |
| Case1 | Not in Target RNC following time, this IE must exist at this optimum subdistrict. |
Table 5
Second embodiment of the invention relates to a kind of method to set up of broadcast multi-cast service transmission mode, similar with first execution mode, its difference is, in first execution mode by obtaining the optimum subdistrict information of UE, statistics is the MBMS UE number of optimum subdistrict with this sub-district, but,, be not that all systems can both be suitable for therefore with transmission optimum subdistrict information because this method of employing need be expanded existing protocol.In the present embodiment, in the time can't expanding existing protocol, directly first switching threshold of PTP to PTM pattern is set to greater than PTM model selection thresholding.By this method, though the PTP of RNC in each ptp mode sub-district of statistics do not distinguish soft changing state when connecting number (being the UE number), but first switching threshold is improved, being equivalent to has increased a part of surplus for PTP counts thresholding to the UE of PTM mode switch, the soft-switch proportion suggestion was 30%～40% during general networking was used, according to this ratio, first switching threshold can improve 30%～50% than PTM model selection thresholding, triggers PTP but causes wasting resource to the PTM pattern negative effect thereby reduce soft handover UE.The ratio drop of above-mentioned two thresholdings can finally be determined according to the actual ratio of soft handover UE in the network, to reach better effect.
Third embodiment of the invention relates to a kind of system that is provided with of broadcast multi-cast service transmission mode, as shown in Figure 4, comprises to be used for adding up and receives the designated broadcast multicast service in the sub-district and be the UE statistic unit of number of the UR of optimum subdistrict with this sub-district; Be used for determining the transmission mode confirmation unit of this BroadCast MultiCast Service in the transmission mode of this sub-district according to the UE number of being added up.Owing to do not comprise being connected between the UE and non-optimum subdistrict in the soft switching process in the UE number of being added up, thereby avoided the sub-district to be subjected to the influence of these connections to set up Common transport channel, but linchpin many UE down still adopts ptp mode to receive the MBMS business, make the Common transport channel of being set up vacant or have only less UE to receive this MBMS business, cause the problem of the waste of transfer resource and power resource by the PTM pattern.Also comprise in this system and be used for obtaining the optimum subdistrict information of this UR and the optimum subdistrict information acquisition unit of optimum subdistrict change information from the SRNC of UR.
This transmission mode confirmation unit is used the described BroadCast MultiCast Service of PTM mode transfer instead when the UE number is greater than first switching threshold of PTP to PTM pattern in using the sub-district of ptp mode in this sub-district; The UE number during to second switching threshold of ptp mode, transmits described BroadCast MultiCast Service by ptp mode less than PTM in this sub-district in the sub-district of using the PTM pattern.Wherein first switching threshold is more than or equal to this second switching threshold.By between two thresholdings, drop being set, make in UE number statistical result not exclusively accurate, may also comprise those and receive professional in this sub-district but its optimum subdistrict when being not the UE of this sub-district, can reduce the influence of this class UE to a certain extent the cell transmission pattern.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (12)
1. the method to set up of a broadcast multi-cast service transmission mode is characterized in that, comprises following steps: statistics receives BroadCast MultiCast Service and is the number of the subscriber equipment of optimum subdistrict with this sub-district in the sub-district;
Determine the transmission mode of this BroadCast MultiCast Service according to the number of user equipment of being added up in this sub-district.
2. the method to set up of broadcast multi-cast service transmission mode according to claim 1 is characterized in that, described sub-district is to use the point-to-point ptp mode to transmit the sub-district of described BroadCast MultiCast Service.
3. the method to set up of broadcast multi-cast service transmission mode according to claim 2 is characterized in that, the service wireless network controller of the subscriber equipment in the described cell coverage area obtains the optimum subdistrict information of this subscriber equipment.
4. the method to set up of broadcast multi-cast service transmission mode according to claim 3 is characterized in that, by the control radio network controller under the described sub-district number that receives the subscriber equipment of described BroadCast MultiCast Service in the described sub-district is added up;
If described control radio network controller is the floating radio network controller of described subscriber equipment, be described subscriber equipment when setting up Radio Link at the described floating radio network controller of service wireless network controller request of described subscriber equipment then, described floating radio network controller obtains the optimum subdistrict information of this subscriber equipment from the service wireless network controller of this subscriber equipment.
5. the method to set up of broadcast multi-cast service transmission mode according to claim 4, it is characterized in that, described service wireless network controller comprises the optimum subdistrict indication by setting up in wireless connections in request message and/or the wireless connections increase request message, transmits the optimum subdistrict information of described subscriber equipment.
6. the method to set up of broadcast multi-cast service transmission mode according to claim 3 is characterized in that, by the control radio network controller under the described sub-district number that receives the subscriber equipment of described BroadCast MultiCast Service in the described sub-district is added up;
If described control radio network controller is the floating radio network controller of described subscriber equipment, then when the optimum subdistrict of described subscriber equipment changed, the service wireless network controller of this subscriber equipment was notified this floating radio network controller with described variation by the Iur interface signaling between radio network controller and the radio network controller.
7. the method to set up of broadcast multi-cast service transmission mode according to claim 6, it is characterized in that, described Iur interface signaling is the direct information message transfer, described service wireless network controller transmits the optimum subdistrict information after described subscriber equipment changes by comprise the optimum subdistrict indication in described direct information message transfer.
8. the method to set up of broadcast multi-cast service transmission mode according to claim 1, it is characterized in that, for the sub-district of using ptp mode, the number of user equipment of this sub-district statistics greater than PTP when putting first switching threshold of multiple spot PTM pattern, use the described BroadCast MultiCast Service of PTM mode transfer instead;
For the sub-district of using the PTM pattern,, use ptp mode instead and transmit described BroadCast MultiCast Service during less than PTM to second switching threshold of ptp mode at the number of user equipment of this sub-district statistics;
Described first switching threshold is more than or equal to described second switching threshold.
9. the system that is provided with of a broadcast multi-cast service transmission mode is characterized in that, comprises:
Be used for adding up and receive the designated broadcast multicast service in the sub-district and be the unit of number of the subscriber equipment of optimum subdistrict with this sub-district;
Be used for determining the unit of this BroadCast MultiCast Service in the transmission mode of this sub-district according to the number of user equipment of being added up.
10. the system that is provided with of broadcast multi-cast service transmission mode according to claim 9 is characterized in that, also comprises the unit that is used for obtaining from the service wireless network controller of subscriber equipment the optimum subdistrict information of this subscriber equipment.
11. the system that is provided with of broadcast multi-cast service transmission mode according to claim 10 is characterized in that, also comprises the unit that obtains the optimum subdistrict change information of this subscriber equipment from the service wireless network controller of subscriber equipment.
12. the system that is provided with of broadcast multi-cast service transmission mode according to claim 9 is characterized in that, also comprises:
When number of user equipment is greater than first switching threshold of PTP to PTM pattern in using the sub-district of ptp mode, in this sub-district, use the unit of the described BroadCast MultiCast Service of PTM mode transfer instead;
Number of user equipment during to second switching threshold of ptp mode, transmits the unit of described BroadCast MultiCast Service less than PTM by ptp mode in this sub-district in the sub-district of using the PTM pattern; Described first switching threshold is more than or equal to described second switching threshold.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102196453A (en) * | 2010-03-16 | 2011-09-21 | 普天信息技术研究院有限公司 | Communication mode selection method |
| CN101374350B (en) * | 2007-08-14 | 2013-12-04 | 卢森特技术有限公司 | Handover method and apparatus in a wireless telecommunications network |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7076248B2 (en) * | 2001-09-10 | 2006-07-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Recovery of mobile station(s) in connected mode upon RNC failure |
| CN1185889C (en) * | 2002-02-10 | 2005-01-19 | 华为技术有限公司 | Method for selecting wireless channel distribution in multiple channel broadcasting business |
| CN1180639C (en) * | 2002-02-27 | 2004-12-15 | 华为技术有限公司 | Radio channel configuration selecting method in multicast service |
| CN1286332C (en) * | 2004-08-12 | 2006-11-22 | 华为技术有限公司 | MBMS service transmission method |
| CN1315309C (en) * | 2004-09-30 | 2007-05-09 | 华为技术有限公司 | Method for renewing count in multimedia broadcast multicast service system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101374350B (en) * | 2007-08-14 | 2013-12-04 | 卢森特技术有限公司 | Handover method and apparatus in a wireless telecommunications network |
| CN102196453A (en) * | 2010-03-16 | 2011-09-21 | 普天信息技术研究院有限公司 | Communication mode selection method |
| CN102196453B (en) * | 2010-03-16 | 2013-10-23 | 普天信息技术研究院有限公司 | Communication mode selection method |
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| CN100466532C (en) | 2009-03-04 |
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