The recognition methods of co-frequency cell, method and service combination and user terminal thereofTechnical field
The present invention relates to the cell identification technology in the 3-G (Generation Three mobile communication system) (3G, The 3rd Generation), relate in particular to a kind of recognition methods, method and service combination and user terminal thereof of co-frequency cell.
Background technology
Universal mobile telecommunications system (UMTS, Universal Mobile Telecommunications System) is to adopt the 3-G (Generation Three mobile communication system) of WCDMA air interface technologies, mainly is to organize among the 3GPP in the WCDMA/GSM global standardsization to develop.
Wherein in 3GPP UMTS standard, according to Radio Resource control (RRC, Radio ResourceControl) whether connection sets up, user terminal can be divided into free time (Idle) pattern and be connected two kinds of (Connected) patterns with RRC: wherein not with UMTS universal land radio access web (UTRAN, Universal Terrestrial Radio Access Network) sets up the user terminal that RRC connects and be in the Idle pattern, user terminal under this pattern can only pass through Non-Access Stratum (NAS, Non-Access Stratum) sign is distinguished, as distinguishing by international travelling carriage identifier (IMSI, International Mobile subscriberidentity); Wherein set up the user terminal that RRC is connected with UTRAN and be in the RRCConnected pattern, user terminal under this pattern has been assigned with Radio Network Temporary Identifier (RNTI, Radionetwork temporary identity), with as the sign of this user terminal on Common transport channel.
And for the user terminal of RRC Connected pattern, the transmission channel kinds that can use according to the level and the user terminal of RRC connection is divided into different conditions with user terminal again: wherein the user terminal under CELL_PCH state, CELL_FACH state and the CELL_DCH state can be distinguished on the level of sub-district, user terminal under the URA_PCH state can be distinguished on UTRAN Registration Area (URA, UTRAN RegisterArea) level.Wherein the user terminal under the CELL_DCH state has been assigned with special-purpose physical channel, and user terminal can use dedicated transmission channel and shared channel and their combination; User terminal under the CELL_FACH state is at the descending Common transport channel of continuous monitoring (FACH, Forward Access Channel) of wanting, at the up default common signal channel (RACH, ReverseAccess Channel) that is assigned with; User terminal under CELL_PCH and the URA_PCH state adopts discontinuous reception (DRX, Discontinuous Reception) mode is by relevant Page Indication Channel (PICH, PageIndicator Channel) paging channel (PCH of monitoring, Page Channel), the user terminal under this two states is without any up activity.
In the 3GPP standard, the regulation user terminal need be measured co-frequency neighbor cell.Wherein under the obsolete situation of Hierarchical Cell Structure (HCS, hierarchy cell structure), the criterion that user terminal carries out common frequency measurement is as follows:
If Sx>Sintrasearch, then user terminal may select not carry out common frequency measurement;
If Sx≤Sintrasearch, then user terminal is carried out common frequency measurement;
If current service cell does not send Sintrasearch, then user terminal is carried out common frequency measurement.
Parameter S intrasearch in the wherein above-mentioned criterion represents the common frequency measurement threshold value, and this common frequency measurement threshold values is sent by system broadcasts by the current service cell of user terminal.
Wherein in above-mentioned common frequency measurement criterion, according to the current cell type difference that is operated in of user terminal, above-mentioned parameter Sx represents following meanings respectively:
When the current cell type that is operated in of user terminal was the FDD sub-district, Sx represented Squal, wherein:
Squal=QQualmeas-Qqualmin; (in the 3GPP standard, this formula being referred to as the S criterion)
When the current cell type that is operated in of user terminal was the TDD sub-district, Sx represented Srxlev, wherein:
Srxlev=QRxlevmeas-Qrxlevmin-Pcompensation; (in the 3GPP standard, this formula being referred to as the S criterion)
The concrete implication of each parameter is as shown in the table in above-mentioned two formula:
| Squal | The cell selecting quality only is applicable to the FDD sub-district |
| Srxlev | Cell selecting receives level |
| Qqualmeas | The cell quality that measures only is applicable to the FDD sub-district |
| Qrxlevmeas | The sub-district reception level that measures |
| Qqualmin | Desired minimum mass level only is applicable to the FDD sub-district in the sub-district |
| Qrxlevmin | Desired minimum reception level in the sub-district |
| Pcompensation | Max(UE_TXPWR_MAX_RACH-P_MAX,0) |
| UE_TXPWR_MAX_RACH | The maximum transmission power that UE may use when inserting the sub-district by RACH |
| P_MAX | UE maximum radio frequency transmitting power |
Above common frequency measurement criterion only is applicable to that user terminal UE is in idle, and the common frequency measurement in URA_PCH and CELL_PCH state following time is handled; Wherein UE is in CELL_FACH state following time and should constantly measures the co-frequency cell that has recognized and search for new co-frequency cell; At Idle, URA_PCH, CELL_PCH and CELL_FACH state following time, the common frequency measurement sub-district that the co-frequency cell that user terminal UE only need consider to carry out forced measurement according to above common frequency measurement criterion will be considered during as the sub-district gravity treatment.
Under the situation that HCS uses, the criterion that user terminal carries out common frequency measurement is as follows:
For the user terminal that is not in high-speed mobile:
If (Srxlev≤SsearchHCS) or (if user terminal is a fdd mode terminal and Sx≤Sintersearch), then user terminal UE measures all co-frequency cells and alien-frequency district; Else if (Sx>Sintrasearch), then user terminal high all co-frequency cells and the alien-frequency district of HCS priority that only contrast current service cell measured; If (Sx≤Sintrasearch), then user terminal pair co-frequency cell that equates with the HCS priority of current service cell and alien-frequency district or all co-frequency cells and the alien-frequency district higher than the HCS priority of current service cell are measured.
If current service cell does not send Sintrasearch, then user terminal carries out common frequency measurement to all co-frequency cells, and all high alien-frequency districts of HCS priority of contrast current service cell carry out different-frequency measure.
If current service cell does not send SearchHCS, or user terminal when being the fdd mode terminal and current service cell do not send Sintersearch, then user terminal is measured all co-frequency cells and alien-frequency district.
For the user terminal that is in high-speed mobile:
If (Srxlev≤SsearchHCS) or (if user terminal is fdd mode terminal and Sx≤Sintersearch), or current service cell does not send SearchHCS, or user terminal when being the fdd mode terminal and current service cell do not send Sintersearch, then user terminal is measured all co-frequency cells and alien-frequency district.Otherwise for other situations, user terminal pair co-frequency cell that equates with the HCS priority of current service cell and alien-frequency district or all co-frequency cells and the alien-frequency district lower than the HCS priority of current service cell are measured.
Parameter S intrasearch in the wherein above-mentioned common frequency measurement criterion represents the common frequency measurement threshold value, parameter S intersearch represents the different-frequency measure threshold value, measurement threshold value when parameter S searchHCS represents HCS, wherein parameter S intrasearch, Sintersearch and SsearchHCS carry out broadcast transmission by the current service cell system respectively.
Above-mentioned common frequency measurement criterion only is applicable to that also user terminal UE is in idle, and the common frequency measurement in URA_PCH and CELL_PCH state following time is handled; Wherein UE is in CELL_FACH state following time and should constantly measures the co-frequency cell that has recognized and search for new co-frequency cell; At Idle, URA_PCH, CELL_PCH and CELL_FACH state following time, the common frequency measurement sub-district that the co-frequency cell that user terminal UE only need consider to carry out forced measurement according to above common frequency measurement criterion will be considered during as the sub-district gravity treatment.
Simultaneously, be accompanied by the development of 3G (Third Generation) Moblie technology, the user no longer is satisfied with speech business to the demand of mobile communication business, because 3-G (Generation Three mobile communication system) can provide the message transmission rate higher than second generation mobile communication system, therefore a large amount of multimedia services just emerges, such as: services such as Internet network are downloaded, browsed at a high speed to visual telephone, picture.Wherein, some applied business require a plurality of users can receive identical data simultaneously, such as: business such as video request program, television broadcasting, video conference, online education, interactive game.
In order effectively to utilize the mobile communications network resource, 3-G (Generation Three mobile communication system) has been introduced the notion of multicast and broadcasting, and multimedia broadcast/multicast service is a kind of technology that transmits identical data from a data source to a plurality of targets.Thus, the WCDMA/GSM global standardsization organize 3GPP to propose multimedia broadcast/group broadcast service (MBMS, Multimedia Broadcast/Multicast Service), so-called MBMS provides a data source to send the point-to-multipoint service of identical data to a plurality of users in mobile communications network, share to realize Internet resources, improve utilization rate of network resource, the utilance of the interface resource of especially eating dishes without rice or wine.
The data-transmission mode of MBMS business between UE and UTRAN can be divided into two kinds: point-to-point (PTP, Point to Point) pattern and put multiple spot (PTM, Point to Multipoint) pattern.Wherein ptp mode is used for the multicast pattern of MBMS, user terminal under the RRC connection mode under the multicast pattern is by Dedicated Control Channel (DCCH, Dedicated Control Channel) receiving control information, and by Dedicated Traffic Channel (DTCH, Dedicated Traffic Channel) receiving data information.And the PTM pattern is used for broadcasting or the multicast pattern of MBMS, user terminal under this pattern is by MBMS point-to-multipoint service channel (MTCH, MBMS point-to-multipoint Traffic Channel) receiving data information, and by the MBMS point to multiple spot control channel (MCCH, MBMS point-to-multipointControl Channel) receiving control information.
Wherein the control information of MBMS business under the PTM pattern issues by MCCH, the MBMS control information that issues on MCCH comprises business information, access information and radio bearer information etc., the MBMS control information that below will send on MCCH for the sake of simplicity, abbreviates " MCCH information " as.MCCH information is divided into two kinds of critical message and non-critical information: critical message comprises MBMS information of adjacent cells, MBMS business information and MBMS radio bearer information; Non-critical information is the MBMS access information.
User terminal obtains the MBMS business information that can get by receiving MCCH information in the sub-district; Also know the access information of business interested, and send request to UTRAN based on this access information by the MBMS access information in the reception MCCH information.
Receive the gain of MBMS PTM business and strengthen covering in order to improve user terminal, user terminal can adopt the merging mode to come the MBMS PTM business that receives from different sub-districts is merged processing, be that user terminal can receive the same MBMS RB bit stream from different districts, and the MBMSRB bit stream that receives is merged processing.
Wherein user terminal can adopt two kinds of merging modes to merge processing to the same MBMS PTM that receives from different sub-districts is professional: select to merge and soft merging.Also may comprise the soft combination situation of part in the wherein soft merging.Selecting to merge is to carry out at Radio Link control (RLC, Radio Link Control) layer, and soft merging is carried out in physical layer.These two kinds of merging modes are applied in user terminal and receive under the different situation of minizone time difference of same MBMS PTM business from different sub-districts, the delay inequality that its soft merging usually is applied to receive between the different districts of same MBMS PTM business is a Transmission Time Interval (TTI to the maximum, Transmission Time Interval)+and the situation of 1 time slot [being the 1TTI+1 time slot], it is selected to merge and usually is applied to than the bigger situation of delay inequality between soft merging different districts of living in.
If when selecting merging or soft merging to carry out between the different districts of transmission same MBMS PTM business, UTRAN should issue the MBMS information of adjacent cells of adjacent sub-district to user terminal UE, and the MBMS information of adjacent cells that this issues comprises and is used to select to merge or the radio bearer configuration information of the adjacent sub-district that soft merging is handled.When the soft merging of part is used, also comprise physical layer (L1) in the MBMS information of adjacent cells that UTRAN issues and merge schedule information simultaneously, be used to indicate UE to carry out the concrete moment of the same MBMS PTM business of adjacent sub-district of soft merging and current service cell transmission.
Had the MBMS information of adjacent cells, the MTCH that UE just can receive adjacent sub-district goes up data carried by data information, and need not receive the upward control information of carrying of MCCH of this neighbour sub-district.When user terminal UE received the MBMS information of adjacent cells of the adjacent sub-district that UTRAN issues, UE can determine suitable adjacent sub-district based on the signal quality that measures and be used for that follow-up selection merges or soft merging is handled.If user terminal UE has determined adjacent sub-district is selected to merge or soft merging when handling, and user terminal UE has the correct MBMS information of adjacent cells of corresponding adjacent sub-district at this moment, and all families terminal will merge the selection of current service cell and adjacent sub-district execution MBMS PTM business or soft merging is handled.
Wherein handle for the merging of supporting MBMS PTM business, UTRAN need periodically issue one or more MBMS Neighboring cell PTM RB information information, this information is the adjacent sub-district of MBMS P-T-M wireless loading information, the PTM beared information of the one or more MBMS business of using with the present adjacent sub-district of notice UE that are used for soft merging or select to merge.
For the MBMS business, for guaranteeing the resources effective utilization, in the 3GPP standard, introduced the notion of MBMS preferential frequencies layer, wherein MBMS preferential frequencies layer promptly refers in order effectively to utilize resource, the user terminal that the UTRAN side requires to receive certain MBMS business is preferentially chosen on certain frequency layer, UTRAN sends this MBMS business on this frequency layer, and the preferential frequencies layer of each MBMS business is specifically indicated to user terminal by UTRAN.The user terminal that wherein receives the MBMS business will quarter in the indicated preferential frequencies layer sub-district of UTRAN as much as possible.In order to guarantee the mobility of user terminal, user terminal can carry out cell reselection process in the process that receives the MBMS business in addition.
Wherein in current research, be in idle, CELL_PCH, URA_PCH and CELL_FACH state, and receiving the FDD terminal that MTCH goes up the MBMS PTM business of carrying is to discern the co-frequency cell of measuring, and the co-frequency cell that identifies is used for the MBMS PTM service combining that MTCH goes up carrying handles.In addition, when if the co-frequency cell number that goes out when the FDD terminal recognition exceeds the merging ability of FDD terminal, then need each co-frequency cell that to identify to sort, be used for the merging that MTCH goes up the MBMS PTM business of carrying and handle to select the corresponding preferably co-frequency cell of the MTCH quality of reception according to the result after the ordering according to the quality of reception of MTCH.
The FDD terminal is discerned the co-frequency cell in the measuring process at present, and the main implementation procedure that the MBMS PTM service combining that the co-frequency cell that identifies is used for carrying on the MTCH is handled is as follows:
1, the system information of FDD terminal reception UTRAN indication (comprises the systematic survey control information, the adjacent sub-district PTM information of MBMS business etc.), measure that (wherein the quality of reception of current service cell being measured resulting measurement result is exactly Q in the above table and to the quality of reception of the Serving cell at current placeQualmeasAnd QRxlevmeasValue, Qqualmin in the above table and Qrxlevmin value are handed down to the FDD terminal by UTRAN by the systematic survey control information, in addition in the above table Pcompensation and in the parameter value that comprises be that FDD terminal self inside is known);
2, the FDD terminal, is measured the co-frequency cell that meets common frequency measurement criterion condition based on the above-mentioned common frequency measurement criterion of mentioning according to the common frequency measurement threshold values that the above-mentioned measurement result that measures and UTRAN issue, and its result comprises:
All co-frequency cells all do not meet the common frequency measurement criterion, so all co-frequency cells are not all carried out common frequency measurement; Or
All co-frequency cells all meet the common frequency measurement criterion, so all co-frequency cells are all carried out common frequency measurement; Or
Have only the part co-frequency cell to meet the common frequency measurement criterion, so only the co-frequency cell that meets the common frequency measurement criterion is carried out common frequency measurement;
If 3 FDD terminals are in to co-frequency cell execution common frequency measurement process and receive the MBMS PTM service condition that carries on the MTCH, then the FDD terminal can go out Unidentified cell identification in the co-frequency cell of measuring, and each co-frequency cell that will discern sorts according to the quality of reception of MTCH, to select the corresponding preferably co-frequency cell of the MTCH quality of reception, to be used for the merging processing that MTCH goes up the MBMS PTM business of carrying according to the result after the ordering.
But in said process, the co-frequency cell that the FDD terminal recognition goes out only is to satisfy the co-frequency cell that the common frequency measurement criterion requires, be that the FDD terminal can only identify the co-frequency cell that meets the requirement of common frequency measurement criterion, to be used for the MBMS PTM service combining processing that MTCH goes up carrying; But generally UTRAN indicates by the MCCH control information and can be used for the co-frequency cell that MTCH goes up the MBMSPTM business of carrying to the FDD terminal and can reach 32 at most, and have part or all of co-frequency cell in these co-frequency cells of UTRAN indication owing to do not meet the common frequency measurement criterion, and can't be gone out to be used for the MBMS PTM service combining processing that MTCH goes up carrying by the FDD terminal recognition, will cause the FDD terminal not handle effective the merging like this to professional execution of the MBMS PTM that receives, thereby can reduce the merging effect of MBMS PTM business, and can reduce the coverage of MBMS business.
Summary of the invention
The technical problem to be solved in the present invention is to propose a kind of recognition methods and method and service combination thereof of co-frequency cell, make user terminal carry out effectively to merge with Zhou Yu and handle, and improve the merging effect and the coverage of broadcasting multicast service the broadcasting multicast service in the co-frequency cell.
Accordingly, the corresponding said method of the present invention has also proposed a kind of user terminal.
For addressing the above problem, the technical scheme that the present invention proposes is as follows:
A kind of recognition methods of co-frequency cell comprises step:
The user terminal that is in reception broadcasting multicast service state knows that according to the control information that UTRAN carries all broadcasting multicast services that participate in self receiving merge the co-frequency cell of handling on broadcast multicast service control channel; And
Each co-frequency cell of being known is carried out common frequency measurement handle, in all co-frequency cells of knowing, to identify Unidentified co-frequency cell.
Preferably, described broadcasting multicast service is the multimedia broadcasting and multicast point-to-multipoint service.
Preferably, described user terminal is mode of frequency division duplexing terminal or TDD mode terminal.
A kind of user terminal comprises:
Co-frequency cell is known the unit, is used to be in receive broadcasting multicast service state following time, according to the control information that UTRAN carries on broadcast multicast service control channel, knows that all broadcasting multicast services that participate in receiving merge the co-frequency cell of handling;
Measure recognition unit, be used for described co-frequency cell is known each co-frequency cell execution common frequency measurement processing that the unit is known, in all co-frequency cells of knowing, to identify Unidentified co-frequency cell.
Preferably, described co-frequency cell knows that the unit specifically comprises:
Control information receives subelement, is used to receive the control information of carrying on the broadcast multicast service control channel; Know subelement with co-frequency cell, be used for knowing that according to the control information that described control information reception subelement receives all broadcasting multicast services that participate in receiving merge the co-frequency cell of handling.
A kind of broadcasting multicast service merging method comprises step:
Set in advance alternative condition;
The user terminal that is in reception broadcasting multicast service state knows that according to the control information that UTRAN carries all broadcasting multicast services that participate in self receiving merge the co-frequency cell of handling on broadcast multicast service control channel; And
Each co-frequency cell of being known is carried out common frequency measurement handle, in all co-frequency cells of knowing, to identify Unidentified co-frequency cell;
User terminal is selected corresponding co-frequency cell according to described alternative condition in the co-frequency cell that identifies based on all co-frequency cells of being known; And
Based on the co-frequency cell of selecting the broadcasting multicast service that self receives being carried out merging handles.
Preferably, described alternative condition is:
Each co-frequency cell that will identify based on all co-frequency cells of being known sorts according to the quality of reception of broadcasting multicast service channel; And
According to ranking results, select N the higher co-frequency cell of the broadcasting multicast service channel quality of reception, described N is a natural number.
Preferably, described broadcasting multicast service is the multimedia broadcasting and multicast point-to-multipoint service.
Preferably, described user terminal is mode of frequency division duplexing terminal or TDD mode terminal.
A kind of user terminal comprises:
Alternative condition is provided with the unit, is used to set in advance alternative condition;
Co-frequency cell is known the unit, is used to be in receive broadcasting multicast service state following time, according to the control information that UTRAN carries on broadcast multicast service control channel, knows that all broadcasting multicast services that participate in receiving merge the co-frequency cell of handling;
Measure recognition unit, be used for described co-frequency cell is known each co-frequency cell execution common frequency measurement processing that the unit is known, in all co-frequency cells of knowing, to identify Unidentified co-frequency cell;
The co-frequency cell selected cell is used for according to described alternative condition the alternative condition that the unit sets in advance being set and selects corresponding co-frequency cell at the co-frequency cell that is identifying based on all co-frequency cells of being known; With
The service combining unit is used for based on the selected co-frequency cell of described co-frequency cell selected cell the broadcasting multicast service that receives being carried out merging and handles.
Preferably, described alternative condition is provided with the alternative condition that the unit sets in advance and is:
Each co-frequency cell that will identify based on all co-frequency cells of being known sorts according to the quality of reception of broadcasting multicast service channel; And
According to ranking results, select N the higher co-frequency cell of the broadcasting multicast service channel quality of reception, described N is a natural number.
Preferably, described co-frequency cell knows that the unit specifically comprises:
Control information receives subelement, is used to receive the control information of carrying on the broadcast multicast service control channel; Know subelement with co-frequency cell, be used for knowing that according to the control information that described control information reception subelement receives all broadcasting multicast services that participate in receiving merge the co-frequency cell of handling.
A kind of recognition methods of co-frequency cell comprises step:
UTRAN issues and guarantees that the broadcasting multicast service that the participating user terminal receives merges the systematic survey control information that all co-frequency cells of handling all meet the common frequency measurement criterion;
The systematic survey control information that user terminal issues according to UTRAN is carried out common frequency measurement to all co-frequency cells that meet the common frequency measurement criterion, to identify Unidentified sub-district in the co-frequency cell that meets the common frequency measurement criterion at all.
Preferably, when UTRAN does not use at Hierarchical Cell Structure, current service cell to user terminal sends the systematic survey control information that does not comprise the common frequency measurement threshold values, and realization guarantees that all co-frequency cells of the broadcasting multicast service merging processing that the participating user terminal receives all meet the common frequency measurement criterion.
Preferably, when UTRAN uses at Hierarchical Cell Structure, by:
Current service cell to user terminal sends the systematic survey control information that does not comprise the common frequency measurement threshold values; Or transmission does not comprise the systematic survey control information that Hierarchical Cell Structure is measured threshold values; Or when user terminal is the mode of frequency division duplexing terminal, send the systematic survey control information that does not comprise the different-frequency measure threshold values;
Realization guarantees that all co-frequency cells of the broadcasting multicast service merging processing that the participating user terminal receives all meet the common frequency measurement criterion.
Preferably, when UTRAN does not use at Hierarchical Cell Structure, current service cell to user terminal sends the systematic survey control information that comprises the common frequency measurement threshold values, realization guarantees that all co-frequency cells of the broadcasting multicast service merging processing that the participating user terminal receives all meet the common frequency measurement criterion, the quality of reception value that described common frequency measurement threshold values calculates greater than the S criterion of the current service cell of user terminal being carried out corresponding this current Serving cell type;
Wherein when the current cell type that is operated in of user terminal was the FDD sub-district, the S criterion was:
Squal=Qqualmeas-Qqualmin;
When the current cell type that is operated in of user terminal was the TDD sub-district, the S criterion was:
Srxlev=Qrxlevmeas-Qrxlevmin-Pcompensation;
Wherein Squal represents the cell selecting quality, is applicable to the FDD sub-district;
Srxlev represents cell selecting reception level;
QQualmeasThe cell quality that expression measures is applicable to the FDD sub-district;
QRxlevmeasThe sub-district reception level that expression measures;
Qqualmin represents desired minimum mass level in the sub-district, is applicable to the FDD sub-district;
Qrxlevmin represents desired minimum reception level in the sub-district;
Pcompensation=Max (UE_TXPWR_MAX_RACH-P_MAX, 0), wherein UE_TXPWR_MAX_RACH represents the maximum transmission power that UE may use when inserting the sub-district by RACH, P_MAX represents UE maximum radio frequency transmitting power.
Preferably, when UTRAN uses at Hierarchical Cell Structure, by:
Current service cell to user terminal sends the systematic survey control information that comprises Hierarchical Cell Structure measurement threshold values, and described Hierarchical Cell Structure is measured the quality of reception value that threshold values calculates greater than the S criterion of the current service cell of user terminal being carried out corresponding this current Serving cell type;
Or when user terminal is the mode of frequency division duplexing terminal, transmission comprises the systematic survey control information of different-frequency measure threshold values, the quality of reception value that described different-frequency measure threshold values calculates greater than the S criterion of the current service cell of user terminal being carried out corresponding this current Serving cell type;
Realization guarantees that all co-frequency cells of the broadcasting multicast service merging processing that the participating user terminal receives all meet the common frequency measurement criterion;
Wherein when the current cell type that is operated in of user terminal was the FDD sub-district, the S criterion was:
Squal=Qqualmeas-Qqualmin;
When the current cell type that is operated in of user terminal was the TDD sub-district, the S criterion was:
Srxlev=Qrxlevmeas-Qrxlevmin-Pcompensation;
Wherein Squal represents the cell selecting quality, is applicable to the FDD sub-district;
Srxlev represents cell selecting reception level;
QQualmeasThe cell quality that expression measures is applicable to the FDD sub-district;
QRxlevmeasThe sub-district reception level that expression measures;
Qqualmin represents desired minimum mass level in the sub-district, is applicable to the FDD sub-district;
Qrxlevmin represents desired minimum reception level in the sub-district;
Pcompensation=Max (UE_TXPWR_MAX_RACH-P_MAX, 0), wherein UE_TXPWR_MAX_RACH represents the maximum transmission power that UE may use when inserting the sub-district by RACH, P_MAX represents UE maximum radio frequency transmitting power.
Preferably, described broadcasting multicast service is the multimedia broadcasting and multicast point-to-multipoint service.
Preferably, described user terminal is mode of frequency division duplexing terminal or TDD mode terminal.
A kind of broadcasting multicast service merging method comprises step:
Set in advance alternative condition;
UTRAN issues and guarantees that the broadcasting multicast service that the participating user terminal receives merges the systematic survey control information that all co-frequency cells of handling all meet the common frequency measurement criterion;
The systematic survey control information that user terminal issues according to UTRAN is carried out common frequency measurement to all co-frequency cells that meet the common frequency measurement criterion, to identify Unidentified sub-district in the co-frequency cell that meets the common frequency measurement criterion at all;
User terminal is selected corresponding co-frequency cell according to described alternative condition in the co-frequency cell that the co-frequency cell that meets the common frequency measurement criterion based on all identifies; And
Based on the co-frequency cell of selecting the broadcasting multicast service that self receives being carried out merging handles.
Preferably, described alternative condition is:
To meet each co-frequency cell that the co-frequency cell of common frequency measurement criterion identifies based on all sorts according to the quality of reception of broadcasting multicast service channel; And
According to ranking results, select N the higher co-frequency cell of the broadcasting multicast service channel quality of reception, described N is a natural number.
Preferably, when UTRAN does not use at Hierarchical Cell Structure, current service cell to user terminal sends the systematic survey control information that does not comprise the common frequency measurement threshold values, and realization guarantees that all co-frequency cells of the broadcasting multicast service merging processing that the participating user terminal receives all meet the common frequency measurement criterion.
Preferably, when UTRAN uses at Hierarchical Cell Structure, by:
Current service cell to user terminal sends the systematic survey control information that does not comprise the common frequency measurement threshold values; Or transmission does not comprise the systematic survey control information that Hierarchical Cell Structure is measured threshold values; Or when user terminal is the mode of frequency division duplexing terminal, send the systematic survey control information that does not comprise the different-frequency measure threshold values;
Realization guarantees that all co-frequency cells of the broadcasting multicast service merging processing that the participating user terminal receives all meet the common frequency measurement criterion.
Preferably, when UTRAN does not use at Hierarchical Cell Structure, current service cell to user terminal sends the systematic survey control information that comprises the common frequency measurement threshold values, realization guarantees that all co-frequency cells of the broadcasting multicast service merging processing that the participating user terminal receives all meet the common frequency measurement criterion, the quality of reception value that described common frequency measurement threshold values calculates greater than the S criterion of the current service cell of user terminal being carried out corresponding this current Serving cell type;
Wherein when the current cell type that is operated in of user terminal was the FDD sub-district, the S criterion was:
Squal=Qqualmeas-Qqualmin;
When the current cell type that is operated in of user terminal was the TDD sub-district, the S criterion was:
Srxlev=Qrxlevmeas-Qrxlevmin-Pcompensation;
Wherein Squal represents the cell selecting quality, is applicable to the FDD sub-district;
Srxlev represents cell selecting reception level;
QQualmeasThe cell quality that expression measures is applicable to the FDD sub-district;
QRxlevmeasThe sub-district reception level that expression measures;
Qqualmin represents desired minimum mass level in the sub-district, is applicable to the FDD sub-district;
Qrxlevmin represents desired minimum reception level in the sub-district;
Pcompensation=Max (UE_TXPWR_MAX_RACH-P_MAX, 0), wherein UE_TXPWR_MAX_RACH represents the maximum transmission power that UE may use when inserting the sub-district by RACH, P_MAX represents UE maximum radio frequency transmitting power.
Preferably, when UTRAN uses at Hierarchical Cell Structure, by:
Current service cell to user terminal sends the systematic survey control information that comprises Hierarchical Cell Structure measurement threshold values, and described Hierarchical Cell Structure is measured the quality of reception value that threshold values calculates greater than the S criterion of the current service cell of user terminal being carried out corresponding this current Serving cell type;
Or when user terminal is the mode of frequency division duplexing terminal, transmission comprises the systematic survey control information of different-frequency measure threshold values, the quality of reception value that described different-frequency measure threshold values calculates greater than the S criterion of the current service cell of user terminal being carried out corresponding this current Serving cell type;
Realization guarantees that all co-frequency cells of the broadcasting multicast service merging processing that the participating user terminal receives all meet the common frequency measurement criterion;
Wherein when the current cell type that is operated in of user terminal was the FDD sub-district, the S criterion was:
Squal=Qqualmeas-Qqualmin;
When the current cell type that is operated in of user terminal was the TDD sub-district, the S criterion was:
Srxlev=Qrxlevmeas-Qrxlevmin-Pcompensation;
Wherein Squal represents the cell selecting quality, is applicable to the FDD sub-district;
Srxlev represents cell selecting reception level;
QQualmeasThe cell quality that expression measures is applicable to the FDD sub-district;
QRxlevmeasThe sub-district reception level that expression measures;
Qqualmin represents desired minimum mass level in the sub-district, is applicable to the FDD sub-district;
Qrxlevmin represents desired minimum reception level in the sub-district;
Pcompensation=Max (UE_TXPWR_MAX_RACH-P_MAX, 0), wherein UE_TXPWR_MAX_RACH represents the maximum transmission power that UE may use when inserting the sub-district by RACH, P_MAX represents UE maximum radio frequency transmitting power.
Preferably, described broadcasting multicast service is the multimedia broadcasting and multicast point-to-multipoint service.
Preferably, described user terminal is mode of frequency division duplexing terminal or TDD mode terminal.
The beneficial effect that the present invention can reach is as follows:
The present invention program knows that by being in the user terminal that receives the broadcasting multicast service state all broadcasting multicast services that participate in self receiving merge the co-frequency cell of handling, and each co-frequency cell of being known is carried out common frequency measurement handle, in all co-frequency cells of knowing, to identify Unidentified co-frequency cell, thereby choose corresponding co-frequency cell in the co-frequency cell that makes SS later to identify based on the co-frequency cell that the broadcasting multicast service merging that participates at all self receiving is handled, and based on the co-frequency cell of selecting the broadcasting multicast service that self receives is carried out merging and handle, thereby can realize that user terminal can effectively merge processing to the execution of the broadcasting multicast service in a plurality of co-frequency cells, therefore improve the merging effect of broadcasting multicast service, also improved the coverage of broadcasting multicast service simultaneously.
Description of drawings
Fig. 1 is the main realization principle flow chart of the recognition methods of co-frequency cell of the present invention;
Fig. 2 is the main composition structured flowchart of user terminal of the present invention;
Fig. 3 is known the concrete composition structured flowchart of unit for co-frequency cell in the user terminal of the present invention;
Fig. 4 is the main realization principle flow chart of broadcasting multicast service merging method of the present invention;
Fig. 5 is the main composition structured flowchart of another user terminal of the present invention's proposition;
Fig. 6 is the main realization principle flow chart of the recognition methods of another co-frequency cell of the present invention's proposition;
Fig. 7 is the main realization principle flow chart of the another kind of broadcasting multicast service merging method of the present invention's proposition.
Embodiment
The present invention program be avoid user terminal in the prior art can not to the MBMSPTM that receives from co-frequency cell professional carry out effectively to merge between co-frequency cell handle, thereby may cause the problem that MBMS service combining effect reduces and the MBMS Service coverage reduces, proposing a kind of user terminal measures in the identifying co-frequency cell when receiving the MBMSPTM business, all co-frequency cells that user terminal is handled the MBMSPTM service combining that participates in receiving are measured identification, and needn't consider the constraint of common frequency measurement criterion, thereby based on this co-frequency cell recognition methods, can realize that user terminal is to the effective service combining processing of the professional execution of the MBMS PTM that receives, to help the covering of MBMS business.
Be explained in detail below in conjunction with the main realization principle and the specific implementation thereof of each accompanying drawing the present invention program.
Please refer to Fig. 1, this figure is the main realization principle flow chart of the recognition methods of co-frequency cell of the present invention, and its main implementation procedure is as follows:
Step S10 is being in the co-frequency cell that broadcasting multicast service that the user terminal UE that receives the broadcasting multicast service state knows that at first institute might participate in self receiving merges processing; Wherein UE can know that all broadcasting multicast services that participate in self receiving merge the co-frequency cell of handling according to the control information that UTRAN carries on broadcast multicast service control channel;
Step S20, UE carries out common frequency measurement respectively to above-mentioned each co-frequency cell of knowing and handles, to identify Unidentified co-frequency cell in above-mentioned all co-frequency cells of knowing.
Wherein mentioned broadcasting multicast service includes but not limited to be multimedia broadcasting and multicast point-to-multipoint service (MBMS PTM business) in the said process; Mentioned user terminal UE includes but not limited to be mode of frequency division duplexing terminal (FDD terminal) and TDD mode terminal (TDD terminal).
The present invention is based on the co-frequency cell recognition methods of above-mentioned proposition, correspondence has proposed a kind of subscriber terminal equipment, please refer to Fig. 2, this figure is the main composition structured flowchart of user terminal of the present invention, it is mainly formed and comprises that co-frequency cell knowsunit 10 and measure recognition unit 20, and it is as follows that wherein these two parts are formed the main effect of structure:
Co-frequency cell is knownunit 10, is mainly used in user terminal and is being in and receives broadcasting multicast service state following time, knows that all broadcasting multicast services that participate in receiving merge the co-frequency cell of handling;
Measure recognition unit 20, be mainly used in above-mentioned co-frequency cell is known that each co-frequency cell thatunit 10 is known carries out common frequency measurement respectively and handle, identify Unidentified co-frequency cell to know at co-frequency cell in all co-frequency cells of knowingunit 10.
Please refer to Fig. 3, this figure is the concrete composition structured flowchart that co-frequency cell is known the unit in the user terminal of the present invention, it is mainly formed structure and comprises that control information receivessubelement 110 and co-frequency cell is knownsubelement 120, and the main effect of this two parts composition structure is as follows:
Control information receivessubelement 110, is mainly used in to receive the control information that UTRAN carries on broadcast multicast service control channel;
Co-frequency cell is knownsubelement 120, is mainly used in the control information that receives according to above-mentioned controlinformation reception subelement 110 and knows that the broadcasting multicast service that all participating user terminals receive merges the co-frequency cell of handling.
Wherein above-mentioned broadcasting multicast service mentioned in user terminal includes but not limited to be multimedia broadcasting and multicast point-to-multipoint service (MBMS PTM business); Described user terminal UE can work in mode of frequency division duplexing (FDD), also can work in TDD mode (TDD).
The present invention is in conjunction with the co-frequency cell recognition methods of above-mentioned proposition, and then proposed a kind of broadcasting multicast service merging method, please refer to Fig. 4, and this figure is the main realization principle flow chart of broadcasting multicast service merging method of the present invention, and its main implementation procedure is as follows:
Step S100 is provided with an alternative condition in advance in user terminal UE; Wherein set alternative condition can but be not limited to:
Each co-frequency cell that will identify based on the co-frequency cell that all broadcasting multicast services merging that participate in receiving that user terminal is known are handled sorts according to the quality of reception of broadcasting multicast service channel;
And, select N the higher co-frequency cell of the broadcasting multicast service channel quality of reception and be used for the broadcasting multicast service that receives is carried out merging processing (wherein N is a natural number) according to above-mentioned ranking results;
Step S110 is being in the user terminal that receives the broadcasting multicast service state and is knowing that all broadcasting multicast services that participate in self receiving merge the co-frequency cell of handling; Wherein user terminal can know that all broadcasting multicast services that participate in self receiving merge the co-frequency cell of handling according to the control information that UTRAN carries on broadcast multicast service control channel;
Step S120, user terminal is carried out common frequency measurement respectively to above-mentioned each co-frequency cell of knowing and is handled, to identify Unidentified co-frequency cell in above-mentioned all co-frequency cells of knowing;
Step S130, user terminal is selected corresponding co-frequency cell according to the above-mentioned alternative condition that sets in advance in the co-frequency cell that identifies based on all co-frequency cells of being known, promptly according to above-mentioned alternative condition, each co-frequency cell that can will identify sorts according to the quality of reception of broadcasting multicast service channel separately, and N the higher co-frequency cell of the broadcasting multicast service channel quality of reception is used for the follow-up broadcasting multicast service that self receives is carried out and merges processing in choosing in ranking results;
Step S140, user terminal carry out to merge to the broadcasting multicast service that self receives based on the above-mentioned co-frequency cell of selecting and handle.
Wherein mentioned broadcasting multicast service includes but not limited to be multimedia broadcasting and multicast point-to-multipoint service (MBMS PTM business) in the said process; Mentioned user terminal UE includes but not limited to be mode of frequency division duplexing terminal (FDD terminal) and TDD mode terminal (TDD terminal).
Broadcasting multicast service merging method based on above-mentioned proposition, correspondence of the present invention a kind of subscriber terminal equipment also proposed, please refer to Fig. 5, this figure is the main composition structured flowchart of another user terminal of proposing of the present invention, it is mainly formed structure and comprises that alternative condition is provided with unit 100, co-frequency cell is known unit 200, measured recognition unit 300, co-frequency cell selected cell 400 and service combining unit 500, and wherein the main effect of each part is as follows:
Alternative condition is provided with unit 100, is used to set in advance an alternative condition; Wherein alternative condition be provided with alternative condition that unit 100 sets in advance can but be not limited to:
To know that broadcasting multicast service that all participating user terminals of being known unit 200 receive merges each co-frequency cell that the co-frequency cell handled identifies and sorts according to the quality of reception of separately broadcasting multicast service channel based on co-frequency cell;
And, select N the higher co-frequency cell of the broadcasting multicast service channel quality of reception and be used for the follow-up broadcasting multicast service execution that receives is merged handling (wherein N is a natural number) according to above-mentioned ranking results;
Co-frequency cell is known unit 200, is mainly used in user terminal and is in and receives broadcasting multicast service state following time, knows that all broadcasting multicast services that participate in receiving merge the co-frequency cell of handling;
Measure recognition unit 300, be mainly used in above-mentioned co-frequency cell is known that each co-frequency cell that unit 200 is known carries out common frequency measurement respectively and handle, identify Unidentified co-frequency cell to know at co-frequency cell in all co-frequency cells of knowing unit 200;
Co-frequency cell selected cell 400, be mainly used in and according to above-mentioned alternative condition alternative condition that unit 100 sets in advance be set and in know the co-frequency cell that all co-frequency cells that unit 200 is known identify based on co-frequency cell, select corresponding co-frequency cell, promptly the alternative condition that unit 100 sets in advance is set according to above-mentioned alternative condition, co-frequency cell selected cell 400 can merge the broadcasting multicast service that receives in all participating user terminals of being known the co-frequency cell that identifies in the co-frequency cell of handling here and sort according to the quality of reception of broadcasting multicast service channel separately, and selects N the broadcasting multicast service channel quality of reception according to ranking results and be used for the follow-up broadcasting multicast service that receives is carried out than higher co-frequency cell and merge processing;
Service combining unit 500 is mainly used in the broadcasting multicast service that user terminal is received based on the selected co-frequency cell that goes out of above-mentioned co-frequency cell selected cell 400 and carries out to merge and handle.
Wherein above-mentioned co-frequency cell knows that the concrete composition structural representation of unit 200 please continue with reference to last shown in Figure 3, and wherein control information receives subelement, is mainly used in to receive the control information that UTRAN carries on broadcast multicast service control channel; Co-frequency cell is known subelement, is mainly used in the control information that receives according to control information reception subelement and knows that the broadcasting multicast service that all participating user terminals receive merges the co-frequency cell of handling.
Wherein above-mentioned broadcasting multicast service mentioned in user terminal includes but not limited to be multimedia broadcasting and multicast point-to-multipoint service (MBMS PTM business); Described user terminal UE can work in mode of frequency division duplexing (FDD), also can work in TDD mode (TDD).
Embodiment 1, and the present invention program is applied in and realizes on the FDD terminal that professional execution of MBMSPTM of MTCH being gone up carrying effectively merges the implementation process of handling:
1, the FDD terminal is receiving in the MBMS PTM business procedure that MTCH goes up carrying, knows the co-frequency cell that all MBMS PTM service combining that participate in self receiving are handled according to the control information of carrying on the MCCH channel;
2, the FDD terminal is carried out common frequency measurement respectively to the co-frequency cell of the MBMS PTM service combining processing of above-mentioned all participations of knowing self reception, and does not consider whether the co-frequency cell of being known meets the requirement of common frequency measurement criterion;
3, the FDD terminal that is in the MBMS PTM business that receives the last carrying of MTCH is discerned processing to Unidentified co-frequency cell in the co-frequency cell of being known;
4, the FDD terminal sorts all co-frequency cells that identify in the above-mentioned co-frequency cell of knowing according to its MTCH quality of reception separately, and based on ranking results select the several preferably co-frequency cells of the MTCH quality of reception be used for to MTCH go up the MBMS PTM of carrying professional carry out to merge handle.
Embodiment 2, and the present invention program is applied in and realizes on the TDD terminal that professional execution of MBMSPTM of MTCH being gone up carrying effectively merges the implementation process of handling:
10, the TDD terminal is receiving in the MBMS PTM business procedure that MTCH goes up carrying, knows the co-frequency cell that all MBMS PTM service combining that participate in self receiving are handled according to the control information of carrying on the MCCH channel;
20, the TDD terminal is carried out common frequency measurement respectively to the co-frequency cell of the MBMS PTM service combining processing of above-mentioned all participations of knowing self reception, and does not consider whether the co-frequency cell of being known meets the requirement of common frequency measurement criterion;
30, the TDD terminal that is in the MBMS PTM business that receives the last carrying of MTCH is discerned processing to Unidentified co-frequency cell in the co-frequency cell of being known;
40, the TDD terminal sorts all co-frequency cells that identify in the above-mentioned co-frequency cell of knowing according to its MTCH quality of reception separately, and based on ranking results select the several preferably co-frequency cells of the MTCH quality of reception be used for to MTCH go up the MBMS PTM of carrying professional carry out to merge handle.
In addition, the invention allows for another co-frequency cell recognition methods, equally also can reach and make user's end in receiving broadcasting multicast service state following time, can merge the co-frequency cell of handling to all broadcasting multicast services that participates in receiving discerns, and based on this co-frequency cell recognition methods, the present invention proposes corresponding broadcasting multicast service merging method, handle so that select several suitable co-frequency cells to be used for that the broadcasting multicast service that receives is carried out merging in the co-frequency cell that user terminal can identify at the co-frequency cell that all broadcasting multicast service merging that participates in receiving are handled, reached and made user terminal to the effective purpose of handling that merges of the broadcasting multicast service execution that self receives, to strengthen the coverage of broadcasting multicast service.
Please refer to Fig. 6, this figure is the main realization principle flow chart of the recognition methods of another co-frequency cell of proposing of the present invention, and its main implementation procedure is as follows:
Step S200, UTRAN issue and guarantee that the broadcasting multicast service that the participating user terminal receives merges the systematic survey control information that all co-frequency cells of handling all meet the common frequency measurement criterion;
Step S210, the systematic survey control information that user terminal issues according to UTRAN is carried out common frequency measurement to all co-frequency cells that meet the common frequency measurement criterion, to identify Unidentified sub-district in the co-frequency cell that meets the common frequency measurement criterion at all.
Wherein, UTRAN can be at Hierarchical Cell Structure (HCS) when not using, send the systematic survey control information that does not comprise common frequency measurement threshold values (Sintrasearch) to the current service cell of user terminal, just can realize guaranteeing that all co-frequency cells that broadcasting multicast service that the participating user terminal receives merges processing all meet the common frequency measurement criterion.
Wherein, UTRAN can be when Hierarchical Cell Structure (HCS) be used, send the systematic survey control information that does not comprise common frequency measurement threshold values (Sintrasearch) by current service cell to user terminal, or transmission does not comprise the systematic survey control information that Hierarchical Cell Structure is measured threshold values (SearchHCS), or when user terminal is the FDD terminal, send the systematic survey control information do not comprise different-frequency measure threshold values (Sintersearch), just can realize guaranteeing that all co-frequency cells that broadcasting multicast service that the participating user terminal receives merges processing all meet the common frequency measurement criterion.
In addition, UTRAN can also be when HCS use, comprise common frequency measurement threshold values (Sintrasearch) greater than the systematic survey control information of the current service cell of user terminal being carried out the quality of reception value that S criterion (the S criterion is specifically referring to description of the Prior Art) calculates by sending, just can realize guaranteeing that all co-frequency cells that broadcasting multicast service that the participating user terminal receives merges processing all meet the common frequency measurement criterion to the current service cell of user terminal.
In addition, UTRAN can also be when HCS uses, comprise Hierarchical Cell Structure and measure threshold values (SearchHCS) by sending greater than the systematic survey control information of the current service cell of user terminal being carried out the quality of reception value that the S criterion calculates to the current service cell of user terminal, or when user terminal is the FDD terminal, transmission comprises different-frequency measure threshold values (Sintersearch) greater than the systematic survey control information of the current service cell of user terminal being carried out the quality of reception value that the S criterion calculates, just can realize guaranteeing that broadcasting multicast service that the participating user terminal receives merges all co-frequency cells of handling and all meets the common frequency measurement criterion.
Wherein mentioned broadcasting multicast service includes but not limited to be multimedia broadcasting and multicast point-to-multipoint service (MBMS PTM business) in the said process; Mentioned user terminal UE includes but not limited to be mode of frequency division duplexing terminal (FDD terminal) and TDD mode terminal (TDD terminal).
Another kind of co-frequency cell recognition methods based on the invention described above proposition, here correspondence has proposed a kind of broadcasting multicast service merging method again, please refer to Fig. 7, this figure is the main realization principle flow chart of the another kind of broadcasting multicast service merging method that proposes of the present invention, and its main implementation procedure is as follows:
Step S300 is provided with an alternative condition in advance in user terminal, wherein set alternative condition can but be not limited to:
To meet each co-frequency cell that the co-frequency cell of common frequency measurement criterion identifies based on all sorts according to the quality of reception of broadcasting multicast service channel;
And, select N the higher co-frequency cell of the broadcasting multicast service channel quality of reception and be used for the broadcasting multicast service that receives is carried out merging processing (wherein N is a natural number) according to above-mentioned ranking results;
Step S310, UTRAN issue and guarantee that the broadcasting multicast service that the participating user terminal receives merges the systematic survey control information that all co-frequency cells of handling all meet the common frequency measurement criterion;
Step S320, the systematic survey control information that user terminal issues according to UTRAN is carried out common frequency measurement to all co-frequency cells that meet the common frequency measurement criterion, to identify Unidentified sub-district in the co-frequency cell that meets the common frequency measurement criterion at all;
Step S330, user terminal is selected corresponding co-frequency cell according to the above-mentioned alternative condition that sets in advance in the co-frequency cell that the co-frequency cell that meets the common frequency measurement criterion based on all identifies, promptly according to above-mentioned alternative condition, each co-frequency cell that can will identify sorts according to the quality of reception of broadcasting multicast service channel separately, and N the higher co-frequency cell of the broadcasting multicast service channel quality of reception is used for the follow-up broadcasting multicast service that self receives is carried out and merges processing in choosing in ranking results;
Step S340, user terminal carry out to merge to the broadcasting multicast service that self receives based on the co-frequency cell of above-mentioned selection and handle.
Wherein, UTRAN can be when HCS use, send the systematic survey control information that does not comprise Sintrasearch to the current service cell of user terminal, just can realize guaranteeing that all co-frequency cells that broadcasting multicast service that the participating user terminal receives merges processing all meet the common frequency measurement criterion.
Wherein, UTRAN can be when HCS uses, send the systematic survey control information that does not comprise Sintrasearch by current service cell to user terminal, or transmission does not comprise the systematic survey control information of SearchHCS, or when user terminal is the FDD terminal, send the systematic survey control information do not comprise Sintersearch, just can realize guaranteeing that all co-frequency cells that broadcasting multicast service that the participating user terminal receives merges processing all meet the common frequency measurement criterion.
In addition, UTRAN can also be when HCS use, comprise Sintrasearch greater than the systematic survey control information of the current service cell of user terminal being carried out the quality of reception value that S criterion (the S criterion is specifically referring to description of the Prior Art) calculates by sending, just can realize guaranteeing that all co-frequency cells that broadcasting multicast service that the participating user terminal receives merges processing all meet the common frequency measurement criterion to the current service cell of user terminal.
In addition, UTRAN can also be when HCS uses, comprise SearchHCS greater than the systematic survey control information of the current service cell of user terminal being carried out the quality of reception value that the S criterion calculates by sending to the current service cell of user terminal, or when user terminal is the FDD terminal, transmission comprises Sintersearch greater than the systematic survey control information of the current service cell of user terminal being carried out the quality of reception value that the S criterion calculates, just can realize guaranteeing that broadcasting multicast service that the participating user terminal receives merges all co-frequency cells of handling and all meets the common frequency measurement criterion.
Wherein mentioned broadcasting multicast service includes but not limited to be multimedia broadcasting and multicast point-to-multipoint service (MBMS PTM business) in the said process; Mentioned user terminal UE includes but not limited to be mode of frequency division duplexing terminal (FDD terminal) and TDD mode terminal (TDD terminal).
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.