CN1953598B - Same-frequency cell identification method, service combination method and user terminal thereof - Google Patents

Abstract

The invention discloses a method for identifying same-frequency cells, which comprises that a user terminal in the state of receiving broadcast and multicast services obtains all same-frequency cells that participate in combined processing of broadcast and multicast services received by itself; Intra-frequency measurement processing is performed to identify unidentified intra-frequency cells among all known intra-frequency cells. Correspondingly, the invention also discloses a method for combining broadcast and multicast services and a user terminal thereof. The present invention can be used to enable the user terminal to perform effective combination processing on the broadcast and multicast services in the same frequency cell, and improve the combination effect and coverage of the broadcast and multicast services.

Description

Same-frequency cell identification method, service combination method and user terminal thereof

technical field

The present invention relates to the cell identification technology in the third generation mobile communication system (3G, The 3rd Generation), in particular to a method for identifying cells of the same frequency, a service combining method and a user terminal thereof.

Background technique

Universal Mobile Telecommunications System (UMTS, Universal Mobile Telecommunications System) is a third-generation mobile communication system using WCDMA air interface technology, mainly developed in the WCDMA/GSM global standardization organization 3GPP.

Among them, in the 3GPP UMTS standard, according to whether the radio resource control (RRC, Radio Resource Control) connection is established, the user terminal can be divided into two types: the idle (Idle) mode and the RRC connection (Connected) mode: among them, the user terminal is not connected to the UMTS Universal Terrestrial Radio Access The user terminal that establishes an RRC connection in the network (UTRAN, Universal Terrestrial Radio Access Network) is in the Idle mode, and the user terminal in this mode can only be distinguished by the non-access stratum (NAS, Non-Access Stratum) identifier, such as through the international mobile The station identification number (IMSI, International Mobile subscriber identity) to distinguish; wherein the user terminal that has established an RRC connection with UTRAN is in the RRCConnected mode, and the user terminal in this mode is assigned a wireless network temporary identity (RNTI, Radionetwork temporary identity) as The identification of the user terminal on the common transmission channel.

For the user terminal in RRC Connected mode, the user terminal can be divided into different states according to the level of RRC connection and the type of transmission channel that the user terminal can use: among them, the user terminal in the CELL_PCH state, CELL_FACH state and CELL_DCH state is at the cell level It can be distinguished, and user terminals in the URA_PCH state can be distinguished at the UTRAN Register Area (URA, UTRAN RegisterArea) level. Among them, the user terminal in the CELL_DCH state is assigned a dedicated physical channel, and the user terminal can use a dedicated transport channel and a shared channel and their combination; the user terminal in the CELL_FACH state must continuously monitor a common transport channel (FACH, Forward Access) in the downlink Channel), the default public channel (RACH, ReverseAccess Channel) is allocated in the uplink; the user terminal in the CELL_PCH and URA_PCH state adopts the discontinuous reception (DRX, Discontinuous Reception) mode through the relevant paging indicator channel (PICH, PageIndicator Channel ) monitors a paging channel (PCH, Page Channel), and the user terminals in these two states do not have any uplink activity.

In the 3GPP specification, it is stipulated that the user terminal needs to measure adjacent cells of the same frequency. Among them, when the hierarchical cell structure (HCS, hierarchy cell structure) is not used, the criteria for the user terminal to perform co-frequency measurement are as follows:

If Sx>Sintrasearch, the user terminal may choose not to perform intra-frequency measurement;

If Sx≤Sintrasearch, the user terminal performs co-frequency measurement;

If the current serving cell does not send Sintrasearch, the user terminal performs intra-frequency measurement.

The parameter Sintrasearch in the above criteria represents an intra-frequency measurement threshold, and the intra-frequency measurement threshold is sent by the current serving cell of the user terminal through system broadcast.

In the same-frequency measurement criteria mentioned above, according to the different types of cells where the user terminal is currently working, the above parameters Sx respectively represent the following meanings:

When the cell type where the user terminal is currently working is an FDD cell, Sx represents Squal, where:

Squal=Q _qualmeas -Qqualmin; (this formula is referred to as the S criterion in the 3GPP specification)

When the cell type where the user terminal is currently working is a TDD cell, Sx represents Srxlev, where:

Srxlev= _Qrxlevmeas -Qrxlevmin-Pcompensation; (this formula is referred to as the S criterion in the 3GPP specification)

The specific meaning of each parameter in the above two formulas is shown in the following table:

Squal Cell selection quality, only applicable to FDD cells Srxlev Cell selection reception level Q_qualmeas Measured cell quality, only applicable to FDD cells Q_rxlevmeas Measured cell reception level Qqualmin The minimum quality level required in the cell, only applicable to FDD cells Qrxlevmin The minimum reception level required in the cell Compensation Max(UE_TXPWR_MAX_RACH-P_MAX, 0) UE_TXPWR_MAX_RACH The maximum transmit power that a UE may use when accessing a cell via RACH P_MAX UE maximum RF transmit power

The above same-frequency measurement criteria are only applicable to the same-frequency measurement processing when the user terminal UE is in the idle, URA_PCH and CELL_PCH states; when the UE is in the CELL_FACH state, it should continuously measure the identified same-frequency cells and search for new same-frequency cells Cell: In the Idle, URA_PCH, CELL_PCH and CELL_FACH states, the user terminal UE only needs to consider the same-frequency cell for mandatory measurement according to the above-mentioned same-frequency measurement criteria as the same-frequency measurement cell to be considered during cell reselection.

In the case of using HCS, the guidelines for the user terminal to perform co-frequency measurement are as follows:

For user terminals that are not moving at high speed:

If (Srxlev≤SsearchHCS) or (if the user terminal is an FDD mode terminal and Sx≤Sintersearch), the user terminal UE measures all the same-frequency cells and inter-frequency cells; otherwise, if (Sx>Sintrasearch), the user terminal Only compare all the same-frequency cells and different-frequency cells with higher HCS priority of the current serving cell; if (Sx≤Sintrasearch), the user terminal will measure the same-frequency cells and different-frequency cells that are equal to the HCS priority of the current serving cell Or all intra-frequency cells and inter-frequency cells with a higher HCS priority than the current serving cell perform measurement.

If the current serving cell does not send Sintrasearch, the user terminal performs intra-frequency measurement on all same-frequency cells, and performs inter-frequency measurement on all inter-frequency cells with higher HCS priorities than the current serving cell.

If the current serving cell does not send SearchHCS, or the user terminal is an FDD mode terminal and the current serving cell does not send Sintersearch, the user terminal measures all same-frequency cells and inter-frequency cells.

For user terminals moving at high speed:

If (Srxlev≤SsearchHCS) or (if the user terminal is a terminal in FDD mode and Sx≤Sintersearch), or the current serving cell does not send SearchHCS, or the user terminal is a terminal in FDD mode and the current serving cell does not send Sintersearch, then the user terminal is responsible for all The same-frequency cell and the different-frequency cell are measured. Otherwise, for other cases, the user terminal measures the intra-frequency cells and inter-frequency cells equal to the HCS priority of the current serving cell or all intra-frequency cells and inter-frequency cells lower than the HCS priority of the current serving cell.

Among them, the parameter Sintrasearch in the same-frequency measurement criterion above indicates the same-frequency measurement threshold, the parameter Sintersearch indicates the different-frequency measurement threshold, and the parameter SsearchHCS indicates the measurement threshold of HCS, and the parameters Sintrasearch, Sintersearch, and SsearchHCS are broadcast and sent by the current serving cell system respectively .

The above same-frequency measurement criteria are only applicable to the same-frequency measurement processing when the user terminal UE is in idle, URA_PCH and CELL_PCH states; when the UE is in the CELL_FACH state, it should continuously measure the identified same-frequency cells and search for new same-frequency cells. In the state of Idle, URA_PCH, CELL_PCH and CELL_FACH, the user terminal UE only needs to consider the same-frequency cell for mandatory measurement according to the above-mentioned same-frequency measurement criteria as the same-frequency measurement cell to be considered during cell reselection.

At the same time, with the development of third-generation mobile communication technology, users' demand for mobile communication services is no longer satisfied with voice services, because the third-generation mobile communication system can provide a higher data transmission rate than the second-generation mobile communication system , so a large number of multimedia services have emerged, such as: video calls, picture downloads, high-speed Internet browsing and other services. Among them, some application services require multiple users to receive the same data at the same time, such as: video on demand, TV broadcasting, video conferencing, online education, interactive games and other services.

In order to effectively utilize the resources of the mobile communication network, the third generation mobile communication system introduces the concept of multicast and broadcast. The multicast and broadcast service is a technology to transmit the same data from one data source to multiple targets. Thus, the WCDMA/GSM global standardization organization 3GPP proposed Multimedia Broadcast/Multicast Service (MBMS, Multimedia Broadcast/Multicast Service). The so-called MBMS is to provide a data source in a mobile communication network to send the same data to multiple users. Multi-point services to realize network resource sharing and improve the utilization rate of network resources, especially the utilization rate of air interface resources.

The data transmission mode of MBMS service between UE and UTRAN can be divided into two types: point-to-point (PTP, Point to Point) mode and point-to-multipoint (PTM, Point to Multipoint) mode. Among them, the PTP mode is used in the multicast mode of MBMS, and the user terminal in the RRC connection mode in the multicast mode receives control information through a dedicated control channel (DCCH, Dedicated Control Channel) and through a dedicated traffic channel (DTCH, Dedicated Traffic Channel) Receive data information. The PTM mode is used in the broadcast or multicast mode of MBMS. In this mode, the user terminal receives data information through the MBMS point-to-multipoint Traffic Channel (MTCH, MBMS point-to-multipoint Traffic Channel), and transmits data through the MBMS point-to-multipoint traffic channel. The control channel (MCCH, MBMS point-to-multipoint Control Channel) receives control information.

The control information of the MBMS service in PTM mode is delivered through the MCCH. The MBMS control information delivered on the MCCH includes service information, access information, and radio bearer information. For simplicity, the following MBMS information sent on the MCCH The control information is simply referred to as "MCCH information". MCCH information is divided into critical information and non-critical information: critical information includes MBMS neighbor cell information, MBMS service information and MBMS radio bearer information; non-critical information is MBMS access information.

In the cell, the user terminal obtains the available MBMS service information by receiving the MCCH information; it also obtains the access information of the interested service by receiving the MBMS access information in the MCCH information, and sends a request to the UTRAN based on the access information.

In order to improve the gain of the user terminal receiving the MBMS PTM service and enhance the coverage, the user terminal can use the combination method to combine the MBMS PTM services received from different cells, that is, the user terminal can receive the same MBMS RB bit stream from different cells, and Combine the received MBMSRB bit streams.

The user terminal can combine the same MBMS PTM services received from different cells in two ways: selective combination and soft combination. The soft merger may also include some soft mergers. Selective combining is performed at the radio link control (RLC, Radio Link Control) layer, and soft combining is performed at the physical layer. These two combining methods are applied when the user terminal receives the same MBMS PTM service from different cells with different inter-cell time differences, and its soft combining is often applied to different cells that can receive the same MBMS PTM service. In the case of Time Interval (TTI, Transmission Time Interval) + 1 time slot [that is, 1 TTI + 1 time slot], the selective combination is often applied to the case where the delay difference between different cells is greater than that of soft combination.

If selective combining or soft combining between different cells sending the same MBMS PTM service can be performed, UTRAN shall deliver the MBMS neighboring cell information of neighboring cells to the user terminal UE, and the delivered MBMS neighboring cell information includes Radio bearer configuration information of adjacent cells to be merged. At the same time, when partial soft combining is applied, the MBMS neighboring cell information sent by UTRAN also includes physical layer (L1) combining scheduling information, which is used to instruct the UE to perform soft combining of the same MBMS PTM service sent by the neighboring cell and the current serving cell. .

With the MBMS neighboring cell information, the UE can receive the data information carried on the MTCH of the neighboring cell without receiving the control information carried on the MCCH of the neighboring cell. When the user terminal UE receives the MBMS neighbor cell information of the neighbor cell delivered by the UTRAN, the UE can determine a suitable neighbor cell for subsequent selective combination or soft combination processing based on the measured signal quality. If the user terminal UE decides to perform selective combination or soft combination processing on neighboring cells, and the user terminal UE has correct MBMS neighboring cell information of the corresponding neighboring cells at this time, the user terminal will perform MBMS PTM on the current serving cell and neighboring cells. Elective consolidation or soft consolidation processing of businesses.

Among them, in order to support the merge processing of MBMS PTM services, UTRAN needs to periodically deliver one or more MBMS Neighboring cell PTM RB information information, which is the point-to-multipoint radio bearer information of MBMS neighboring cells, to notify the UE that the current neighboring cells use PTM bearer information of one or more MBMS services used for soft combining or selective combining.

For MBMS services, in order to ensure the effective use of resources, the concept of MBMS priority frequency layer is introduced in the 3GPP specification. The MBMS priority frequency layer means that in order to effectively use resources, the UTRAN side requires the priority selection of user terminals receiving certain MBMS services. On a certain frequency layer, the UTRAN sends the MBMS service on this frequency layer, and the priority frequency layer of each MBMS service is specifically indicated to the user terminal by the UTRAN. The user terminal receiving the MBMS service should camp in the priority frequency layer cell indicated by the UTRAN as much as possible. In addition, in order to ensure the mobility of the user terminal, the user terminal will perform cell reselection processing during the process of receiving the MBMS service.

Among them, in the current research, the FDD terminal in idle, CELL_PCH, URA_PCH and CELL_FACH state, and receiving the MBMS PTM service carried on MTCH can identify the same-frequency cell being measured, and will identify the same-frequency cell The cell is used for the combined processing of the MBMS PTM service carried on the MTCH. In addition, if the number of same-frequency cells identified by the FDD terminal exceeds the combined capability of the FDD terminal, it is necessary to sort the identified same-frequency cells according to the MTCH reception quality, so as to select the MTCH reception quality according to the sorted results. Better corresponding co-frequency cells are used for the merge processing of the MBMS PTM service carried on the MTCH.

At present, the FDD terminal identifies the same-frequency cells in the measurement process, and uses the identified same-frequency cells for the MBMS PTM service merging process carried on the MTCH. The main implementation process is as follows:

1. The FDD terminal receives the system information indicated by UTRAN (including system measurement control information, neighboring cell PTM information of the MBMS service, etc.), and measures the receiving quality of the current serving cell (where the receiving quality of the current serving cell is measured) The obtained measurement results are the Q _qualmeas and Q _rxlevmeas values in the above table. The Qqualmin and Qrxlevmin values in the above table are sent to the FDD terminal by UTRAN through the system measurement control information. In addition, the Pcompensation and the parameter values contained in the above table is known internally by the FDD terminal itself);

2. According to the measurement results obtained from the above measurements and the same-frequency measurement threshold issued by UTRAN, based on the above-mentioned same-frequency measurement criteria, the FDD terminal measures the same-frequency cells that meet the conditions of the same-frequency measurement criteria. The results include:

All same-frequency cells do not meet the same-frequency measurement criteria, so no same-frequency measurement is performed for all same-frequency cells; or

All same-frequency cells comply with the same-frequency measurement criteria, so perform same-frequency measurement for all same-frequency cells; or

Only some of the same-frequency cells meet the same-frequency measurement criteria, so only perform the same-frequency measurement for the same-frequency cells that meet the same-frequency measurement criteria;

3. If the FDD terminal is in the state of receiving the MBMS PTM service carried on the MTCH during the same-frequency measurement of the same-frequency cell, the FDD terminal will identify the unidentified cell among the measured same-frequency cells and send the identified Each same-frequency cell is sorted according to the receiving quality of MTCH, so as to select the corresponding same-frequency cell with better MTCH receiving quality according to the sorted result, so as to be used for the merge processing of the MBMS PTM service carried on the MTCH.

However, in the above process, the same-frequency cells identified by the FDD terminal are only the same-frequency cells that meet the requirements of the same-frequency measurement criteria, that is, the FDD terminal can only identify the same-frequency cells that meet the requirements of the same-frequency measurement criteria for MTCH However, usually UTRAN indicates to FDD terminals through MCCH control information that there are up to 32 same-frequency cells that can be used for MBMS PTM services carried on MTCH, and these same-frequency cells indicated by UTRAN will be Some or all of the same-frequency cells cannot be identified by the FDD terminal because they do not meet the same-frequency measurement criteria, so that they can be used for the combined processing of the MBMS PTM service carried on the MTCH, which will cause the FDD terminal to fail to perform effective monitoring of the received MBMS PTM service Merging processing will reduce the effect of combining MBMS PTM services and reduce the coverage of MBMS services.

Contents of the invention

The technical problem to be solved by the present invention is to propose a method for identifying same-frequency cells and a method for merging services thereof, so as to enable user terminals to perform effective merge processing on broadcast and multicast services in same-frequency cells, and improve the efficiency of broadcast groups. combined effect and coverage of broadcasting services.

Correspondingly, the present invention also proposes a user terminal corresponding to the above method.

In order to solve the above problems, the technical scheme proposed by the present invention is as follows:

A method for identifying same-frequency cells, comprising the steps of:

The user terminal in the state of receiving the broadcast multicast service learns all the same-frequency cells that participate in the combined processing of the broadcast multicast service received by itself according to the control information carried by the UTRAN on the broadcast multicast service control channel; and

Intra-frequency measurement processing is performed on each of the known intra-frequency cells, so as to identify an unidentified intra-frequency cell among all the known intra-frequency cells.

Preferably, the broadcast multicast service is a multimedia broadcast multicast point-to-multipoint service.

Preferably, the user terminal is a terminal in frequency division duplex mode or a terminal in time division duplex mode.

A user terminal, comprising:

The same-frequency cell learning unit is used to know all the same-frequency cells that participate in the combined processing of the broadcast and multicast services received according to the control information carried by the UTRAN on the broadcast and multicast service control channel when the broadcast and multicast service is received;

The measurement identification unit is configured to perform intra-frequency measurement processing on each intra-frequency cell learned by the intra-frequency cell obtaining unit, so as to identify an unidentified intra-frequency cell among all the intra-frequency cells known.

Preferably, the same-frequency cell learning unit specifically includes:

The control information receiving subunit is used to receive the control information carried on the broadcast multicast service control channel; and the same-frequency cell learning subunit is used to learn all the broadcasts participating in the reception according to the control information received by the control information receiving subunit Intra-frequency cells for combined multicast services.

A method for combining broadcast and multicast services, comprising the steps of:

Pre-set selection criteria;

The user terminal in the state of receiving the broadcast multicast service learns all the same-frequency cells that participate in the combined processing of the broadcast multicast service received by itself according to the control information carried by the UTRAN on the broadcast multicast service control channel; and

performing same-frequency measurement processing on each known same-frequency cell, so as to identify an unidentified same-frequency cell among all known same-frequency cells;

The user terminal selects a corresponding same-frequency cell from the same-frequency cells identified based on all known same-frequency cells according to the selection condition; and

Combine the broadcast and multicast services received by itself based on the selected same-frequency cell.

Preferably, the selection criteria are:

sorting each same-frequency cell identified based on all known same-frequency cells according to the reception quality of the broadcast multicast service channel; and

According to the sorting result, select N same-frequency cells with higher reception quality of the broadcast multicast service channel, where N is a natural number.

Preferably, the broadcast multicast service is a multimedia broadcast multicast point-to-multipoint service.

Preferably, the user terminal is a terminal in frequency division duplex mode or a terminal in time division duplex mode.

A user terminal, comprising:

The selection condition setting unit is used to set the selection condition in advance;

The same-frequency cell learning unit is used to know all the same-frequency cells that participate in the combined processing of the broadcast and multicast services received according to the control information carried by the UTRAN on the broadcast and multicast service control channel when the broadcast and multicast service is received;

The measurement identification unit is configured to perform intra-frequency measurement processing on each intra-frequency cell known by the intra-frequency cell acquisition unit, so as to identify an unidentified intra-frequency cell among all the intra-frequency cells known;

A same-frequency cell selection unit, configured to select a corresponding same-frequency cell among the same-frequency cells identified based on all known same-frequency cells according to the selection condition preset by the selection condition setting unit; and

A service merging unit, configured to perform merging processing on the received broadcast and multicast services based on the same-frequency cell selected by the same-frequency cell selection unit.

Preferably, the selection condition preset by the selection condition setting unit is:

sorting each same-frequency cell identified based on all known same-frequency cells according to the reception quality of the broadcast multicast service channel; and

According to the sorting result, select N same-frequency cells with higher reception quality of the broadcast multicast service channel, where N is a natural number.

Preferably, the same-frequency cell learning unit specifically includes:

The control information receiving subunit is used to receive the control information carried on the broadcast multicast service control channel; and the same-frequency cell learning subunit is used to learn all the broadcasts participating in the reception according to the control information received by the control information receiving subunit Intra-frequency cells for combined multicast services.

A method for identifying same-frequency cells, comprising the steps of:

UTRAN issues system measurement control information to ensure that all co-frequency cells participating in the combined processing of broadcast and multicast services received by user terminals comply with co-frequency measurement criteria;

According to the system measurement control information issued by the UTRAN, the user terminal performs intra-frequency measurement on all intra-frequency cells that meet the intra-frequency measurement criteria, so as to identify unidentified cells among all intra-frequency cells that meet the intra-frequency measurement criteria.

Preferably, when the hierarchical structure of the cell is not applied, the UTRAN sends system measurement control information that does not include the same-frequency measurement threshold to the current serving cell of the user terminal, so as to ensure that all the combined processing of the broadcast and multicast services received by the user terminal is ensured. Cells with the same frequency conform to the same-frequency measurement criteria.

Preferably, when UTRAN is applied in a cell hierarchical structure, through:

Send system measurement control information that does not include the same-frequency measurement threshold to the current serving cell of the user terminal; or send system measurement control information that does not include the measurement threshold of the cell hierarchical structure; or when the user terminal is a terminal in frequency division duplex mode , sending system measurement control information that does not include the inter-frequency measurement threshold;

It is implemented to ensure that all co-frequency cells participating in the combined processing of the broadcast and multicast services received by the user terminal comply with the co-frequency measurement criteria.

Preferably, when the hierarchical structure of the cell is not applied, the UTRAN sends system measurement control information including the same-frequency measurement threshold to the current serving cell of the user terminal, so as to ensure that all simultaneous processing of the broadcast and multicast services received by the user terminal is guaranteed. The frequency cells all meet the same-frequency measurement criteria, and the same-frequency measurement threshold is greater than the reception quality value calculated by the S criterion corresponding to the current serving cell type for the current serving cell of the user terminal;

Wherein when the cell type where the user terminal is currently working is an FDD cell, the S criterion is:

Squal=Q _qualmeas -Qqualmin;

When the cell type where the user terminal is currently working is a TDD cell, the S criterion is:

Srxlev= _Qrxlevmeas -Qrxlevmin-Pcompensation;

Among them, Squal represents the quality of cell selection, which is applicable to FDD cells;

Srxlev represents the cell selection reception level;

Q _qualmeas indicates the measured cell quality, which is applicable to FDD cells;

Q _rxlevmeas represents the measured reception level of the cell;

Qqualmin indicates the minimum quality level required in the cell, which is applicable to FDD cells;

Qrxlevmin indicates the minimum reception level required in the cell;

Pcompensation=Max(UE_TXPWR_MAX_RACH-P_MAX, 0), wherein UE_TXPWR_MAX_RACH represents the maximum transmit power that the UE may use when accessing the cell through RACH, and P_MAX represents the maximum radio frequency transmit power of the UE.

Preferably, when UTRAN is applied in a cell hierarchical structure, through:

Send the system measurement control information including the cell hierarchical structure measurement threshold to the current serving cell of the user terminal, and the cell hierarchical structure measurement threshold is greater than the S criterion calculation corresponding to the current serving cell type for the current serving cell of the user terminal The received quality value obtained;

Or when the user terminal is a terminal in frequency division duplex mode, send system measurement control information including an inter-frequency measurement threshold, where the inter-frequency measurement threshold is greater than the S for the current serving cell of the user terminal corresponding to the current serving cell type The received quality value calculated by the criterion;

To ensure that all co-frequency cells participating in the combined processing of broadcast and multicast services received by user terminals comply with the co-frequency measurement criteria;

Wherein when the cell type where the user terminal is currently working is an FDD cell, the S criterion is:

Squal=Q _qualmeas -Qqualmin;

When the cell type where the user terminal is currently working is a TDD cell, the S criterion is:

Srxlev= _Qrxlevmeas -Qrxlevmin-Pcompensation;

Among them, Squal represents the quality of cell selection, which is applicable to FDD cells;

Srxlev represents the cell selection reception level;

Q _qualmeas indicates the measured cell quality, which is applicable to FDD cells;

Q _rxlevmeas represents the measured reception level of the cell;

Qqualmin indicates the minimum quality level required in the cell, which is applicable to FDD cells;

Qrxlevmin indicates the minimum reception level required in the cell;

Pcompensation=Max(UE_TXPWR_MAX_RACH-P_MAX, 0), wherein UE_TXPWR_MAX_RACH represents the maximum transmit power that the UE may use when accessing the cell through RACH, and P_MAX represents the maximum radio frequency transmit power of the UE.

Preferably, the broadcast multicast service is a multimedia broadcast multicast point-to-multipoint service.

Preferably, the user terminal is a terminal in frequency division duplex mode or a terminal in time division duplex mode.

A method for combining broadcast and multicast services, comprising the steps of:

Pre-set selection criteria;

UTRAN issues system measurement control information to ensure that all co-frequency cells participating in the combined processing of broadcast and multicast services received by user terminals comply with co-frequency measurement criteria;

According to the system measurement control information delivered by UTRAN, the user terminal performs co-frequency measurement on all co-frequency cells that meet the co-frequency measurement criteria, so as to identify unidentified cells in all co-frequency cells that meet the co-frequency measurement criteria;

The user terminal selects a corresponding same-frequency cell from the same-frequency cells identified based on all same-frequency cells meeting the same-frequency measurement criterion according to the selection condition; and

Combine the broadcast and multicast services received by itself based on the selected same-frequency cell.

Preferably, the selection criteria are:

sorting each same-frequency cell identified based on all same-frequency cells meeting the same-frequency measurement criterion according to the receiving quality of the broadcast multicast service channel; and

According to the sorting result, select N same-frequency cells with higher reception quality of the broadcast multicast service channel, where N is a natural number.

Preferably, when the hierarchical structure of the cell is not applied, the UTRAN sends system measurement control information that does not include the same-frequency measurement threshold to the current serving cell of the user terminal, so as to ensure that all the combined processing of the broadcast and multicast services received by the user terminal is ensured. Cells with the same frequency conform to the same-frequency measurement criteria.

Preferably, when UTRAN is applied in a cell hierarchical structure, through:

Send system measurement control information that does not include the same-frequency measurement threshold to the current serving cell of the user terminal; or send system measurement control information that does not include the measurement threshold of the cell hierarchical structure; or when the user terminal is a terminal in frequency division duplex mode , sending system measurement control information that does not include the inter-frequency measurement threshold;

It is implemented to ensure that all co-frequency cells participating in the combined processing of the broadcast and multicast services received by the user terminal comply with the co-frequency measurement criteria.

Preferably, when the hierarchical structure of the cell is not applied, the UTRAN sends system measurement control information including the same-frequency measurement threshold to the current serving cell of the user terminal, so as to ensure that all simultaneous processing of the broadcast and multicast services received by the user terminal is guaranteed. The frequency cells all meet the same-frequency measurement criteria, and the same-frequency measurement threshold is greater than the reception quality value calculated by the S criterion corresponding to the current serving cell type for the current serving cell of the user terminal;

Wherein when the cell type where the user terminal is currently working is an FDD cell, the S criterion is:

Squal=Q _qualmeas -Qqualmin;

When the cell type where the user terminal is currently working is a TDD cell, the S criterion is:

Srxlev= _Qrxlevmeas -Qrxlevmin-Pcompensation;

Among them, Squal represents the quality of cell selection, which is applicable to FDD cells;

Srxlev represents the cell selection reception level;

Q _qualmeas indicates the measured cell quality, which is applicable to FDD cells;

Q _rxlevmeas represents the measured reception level of the cell;

Qqualmin indicates the minimum quality level required in the cell, which is applicable to FDD cells;

Qrxlevmin indicates the minimum reception level required in the cell;

Pcompensation=Max(UE_TXPWR_MAX_RACH-P_MAX, 0), wherein UE_TXPWR_MAX_RACH represents the maximum transmit power that the UE may use when accessing the cell through RACH, and P_MAX represents the maximum radio frequency transmit power of the UE.

Preferably, when UTRAN is applied in a cell hierarchical structure, through:

Send the system measurement control information including the cell hierarchical structure measurement threshold to the current serving cell of the user terminal, and the cell hierarchical structure measurement threshold is greater than the S criterion calculation corresponding to the current serving cell type for the current serving cell of the user terminal The received quality value obtained;

Or when the user terminal is a terminal in frequency division duplex mode, send system measurement control information including an inter-frequency measurement threshold, where the inter-frequency measurement threshold is greater than the S for the current serving cell of the user terminal corresponding to the current serving cell type The received quality value calculated by the criterion;

To ensure that all co-frequency cells participating in the combined processing of broadcast and multicast services received by user terminals comply with the co-frequency measurement criteria;

Wherein when the cell type where the user terminal is currently working is an FDD cell, the S criterion is:

Squal=Q _qualmeas -Qqualmin;

When the cell type where the user terminal is currently working is a TDD cell, the S criterion is:

Srxlev= _Qrxlevmeas -Qrxlevmin-Pcompensation;

Among them, Squal represents the quality of cell selection, which is applicable to FDD cells;

Srxlev represents the cell selection reception level;

Q _qualmeas indicates the measured cell quality, which is applicable to FDD cells;

Q _rxlevmeas represents the measured reception level of the cell;

Qqualmin indicates the minimum quality level required in the cell, which is applicable to FDD cells;

Qrxlevmin indicates the minimum reception level required in the cell;

Pcompensation=Max(UE_TXPWR_MAX_RACH-P_MAX, 0), wherein UE_TXPWR_MAX_RACH represents the maximum transmit power that the UE may use when accessing the cell through RACH, and P_MAX represents the maximum radio frequency transmit power of the UE.

Preferably, the broadcast multicast service is a multimedia broadcast multicast point-to-multipoint service.

Preferably, the user terminal is a terminal in frequency division duplex mode or a terminal in time division duplex mode.

The beneficial effect that the present invention can reach is as follows:

According to the solution of the present invention, the user terminal in the state of receiving broadcast and multicast services learns all the same-frequency cells that participate in the combined processing of the broadcast and multicast services received by itself, and performs the same-frequency measurement process on each of the known same-frequency cells, so as to obtain Unidentified same-frequency cells are identified in all same-frequency cells, so that the user terminal can subsequently select a corresponding same-frequency cell based on the same-frequency cells identified by all same-frequency cells that participate in the combined processing of broadcast and multicast services received by itself , and based on the selected same-frequency cell, perform combined processing on the broadcast and multicast services received by itself, so that the user terminal can perform effective combined processing on the broadcast and multicast services in multiple same-frequency cells, thus improving the broadcast and multicast The combined effect of the service also improves the coverage of broadcast and multicast services.

Description of drawings

Fig. 1 is the flow chart of the main realization principle of the identification method of the same-frequency cell of the present invention;

FIG. 2 is a structural block diagram of the main components of the user terminal of the present invention;

FIG. 3 is a block diagram of the specific composition and structure of the same-frequency cell acquisition unit in the user terminal of the present invention;

Fig. 4 is the flow chart of the main realization principles of the method for combining broadcast and multicast services of the present invention;

FIG. 5 is a structural block diagram of main components of another user terminal proposed by the present invention;

FIG. 6 is a flow chart of the main realization principles of another method for identifying same-frequency cells proposed by the present invention;

FIG. 7 is a flow chart of main realization principles of another method for merging broadcast and multicast services proposed by the present invention.

Detailed ways

In order to avoid the problem in the prior art that the user terminal cannot effectively merge the MBMSPTM services received from the same-frequency cells between the same-frequency cells, which may cause the reduction of the MBMS service merger effect and the reduction of the MBMS service coverage, a solution is proposed. In the process of measuring and identifying the same-frequency cells when the user terminal receives MBMSPTM services, the user terminal can measure and identify all the same-frequency cells participating in the combined processing of the received MBMSPTM services without considering the constraints of the same-frequency measurement criteria, so that based on The same-frequency cell identification method can realize effective service combination processing for the received MBMS PTM service by the user terminal, so as to benefit the coverage of the MBMS service.

The main implementation principle and specific implementation manner of the solution of the present invention will be described in detail below with reference to each accompanying drawing.

Please refer to Fig. 1, this figure is the main realization principle flowchart of the identification method of same-frequency cell of the present invention, and its main realization process is as follows:

Step S10, the user terminal UE in the state of receiving the broadcast and multicast service first obtains all the same-frequency cells that may participate in the merged processing of the broadcast and multicast service received by itself; wherein the UE can control the broadcast and multicast service carried on the control channel of the broadcast and multicast service according to UTRAN Information to know all the same-frequency cells that participate in the combined processing of the broadcast and multicast services received by itself;

In step S20, the UE performs intra-frequency measurement processing on each of the above-mentioned known intra-frequency cells, so as to identify an unidentified intra-frequency cell among all the above-mentioned known intra-frequency cells.

Wherein the broadcast multicast service mentioned in the above process includes but not limited to multimedia broadcast multicast point-to-multipoint service (MBMS PTM service); mentioned user terminal UE includes but not limited to frequency division duplex mode terminal (FDD terminal) and time division duplex mode terminal (TDD terminal).

Based on the same-frequency cell identification method proposed above, the present invention correspondingly proposes a user terminal device, please refer to FIG. 2 , which is a structural block diagram of the main components of the user terminal of the present invention, and its main components include the same-frequency cell learning unit 10 and The measurement identification unit 20, wherein the main functions of the two parts are as follows:

The same-frequency cell learning unit 10 is mainly used to know all the same-frequency cells that participate in the combined processing of the broadcast and multicast services received when the user terminal is in the state of receiving broadcast and multicast services;

The measurement identification unit 20 is mainly used to perform the same-frequency measurement process on each of the same-frequency cells known by the above-mentioned same-frequency cell learning unit 10, so as to identify unidentified same frequency area.

Please refer to FIG. 3 , which is a block diagram of the specific composition structure of the same-frequency cell acquisition unit in the user terminal of the present invention. Its main composition structure includes the control information receiving subunit 110 and the same-frequency cell acquisition subunit 120. The two parts constitute the structure The main functions are as follows:

The control information receiving subunit 110 is mainly used to receive the control information carried by UTRAN on the broadcast multicast service control channel;

The same-frequency cell learning subunit 120 is mainly used to know all the same-frequency cells participating in the combined processing of the broadcast and multicast services received by the user terminal according to the control information received by the control information receiving subunit 110 .

Wherein the broadcast multicast service mentioned above in the user terminal includes but not limited to multimedia broadcast multicast point-to-multipoint service (MBMS PTM service); the user terminal UE can work in frequency division duplex mode (FDD) , can also work in time division duplex mode (TDD).

The present invention combines the same-frequency cell identification method proposed above, and then proposes a method for combining broadcast and multicast services. Please refer to FIG. The process is as follows:

Step S100, pre-setting a selection condition in the user terminal UE; wherein the set selection condition can be but not limited to:

Sorting the same-frequency cells identified based on all the same-frequency cells that participate in the combined processing of broadcast and multicast services known to the user terminal according to the reception quality of the broadcast and multicast service channels;

And according to the above-mentioned sorting result, select N broadcast multicast service channel receiving quality higher same-frequency sub-districts to be used for carrying out merging process to the received broadcast multicast service (wherein N is a natural number);

Step S110, the user terminal in the state of receiving the broadcast multicast service learns all the same-frequency cells that participate in the combined processing of the broadcast multicast service received by itself; wherein the user terminal can according to the control information carried by the UTRAN on the broadcast multicast service control channel. Know all the same-frequency cells that participate in the combined processing of the broadcast and multicast services received by itself;

Step S120, the user terminal performs the same-frequency measurement process on each of the above-mentioned known same-frequency cells, so as to identify an unidentified same-frequency cell among all the above-mentioned known same-frequency cells;

Step S130, the user terminal selects the corresponding same-frequency cell from the same-frequency cells identified based on all known same-frequency cells according to the above-mentioned preset selection conditions, that is, according to the above-mentioned selection conditions, each identified same-frequency cell Sorting is performed according to the reception quality of the respective broadcast multicast service channels, and in the sorting results, selecting N same-frequency cells with higher reception quality of the broadcast multicast service channels is used to perform merging processing on the broadcast multicast service received by itself;

In step S140, the user terminal performs combining processing on the broadcast and multicast services received by itself based on the same-frequency cell selected above.

Wherein the broadcast multicast service mentioned in the above process includes but not limited to multimedia broadcast multicast point-to-multipoint service (MBMS PTM service); mentioned user terminal UE includes but not limited to frequency division duplex mode terminal (FDD terminal) and time division duplex mode terminal (TDD terminal).

Based on the method for merging broadcast and multicast services proposed above, the present invention also proposes a corresponding user terminal equipment, please refer to FIG. 5 , which is a block diagram of the main components of another user terminal proposed by the present invention. It includes a selection condition setting unit 100, an intra-frequency cell acquisition unit 200, a measurement identification unit 300, an intra-frequency cell selection unit 400, and a service merging unit 500, wherein the main functions of each component are as follows:

The selection condition setting unit 100 is used to preset a selection condition; wherein the selection condition preset by the selection condition setting unit 100 can be but not limited to:

Sorting the same-frequency cells identified by the same-frequency cells based on all the same-frequency cells that are known by the same-frequency cell learning unit 200 to participate in the combined processing of the broadcast and multicast services received by the user terminal according to the receiving quality of their respective broadcast and multicast service channels;

And according to the above sorting results, select N broadcast and multicast service channels with higher receiving quality co-frequency cells for subsequent merge processing of received broadcast and multicast services (wherein N is a natural number);

The same-frequency cell learning unit 200 is mainly used to know all the same-frequency cells that participate in the combined processing of the broadcast and multicast services when the user terminal is in the state of receiving broadcast and multicast services;

The measurement identification unit 300 is mainly used to perform the same-frequency measurement processing on each of the same-frequency cells known by the above-mentioned same-frequency cell learning unit 200, so as to identify unidentified Same-frequency cell;

The same-frequency cell selection unit 400 is mainly used to select a corresponding same-frequency cell among the same-frequency cells identified based on all same-frequency cells known by the same-frequency cell acquisition unit 200 according to the selection condition preset by the above-mentioned selection condition setting unit 100 , that is, according to the selection condition preset by the selection condition setting unit 100, the same-frequency cell selection unit 400 will here recognize the same-frequency cells that are identified in all the same-frequency cells that participate in the combined processing of the broadcast and multicast services received by the user terminal. The frequency cells are sorted according to the receiving quality of their respective broadcast and multicast service channels, and N same-frequency cells with relatively high reception quality of the broadcast and multicast service channels are selected according to the sorting results for subsequent merge processing of the received broadcast and multicast services;

The service merging unit 500 is mainly used to combine the broadcast and multicast services received by the user terminal based on the same-frequency cells selected by the same-frequency cell selection unit 400 .

Wherein, please continue to refer to the above-mentioned schematic diagram of the specific composition and structure of the same-frequency cell learning unit 200 as shown in Figure 3, wherein the control information receiving subunit is mainly used to receive the control information carried by UTRAN on the broadcast and multicast service control channel; the same-frequency cell The learning subunit is mainly used to learn all the same-frequency cells that participate in the combined processing of the broadcast and multicast services received by the user terminal according to the control information received by the control information receiving subunit.

Wherein the broadcast multicast service mentioned above in the user terminal includes but not limited to multimedia broadcast multicast point-to-multipoint service (MBMS PTM service); the user terminal UE can work in frequency division duplex mode (FDD) , can also work in time division duplex mode (TDD).

Embodiment 1, the solution of the present invention is applied on the FDD terminal to realize the implementation process of effectively combining the MBMSPTM service carried on the MTCH:

1. When the FDD terminal is receiving the MBMS PTM service carried on the MTCH, according to the control information carried on the MCCH channel, it knows all the same-frequency cells that participate in the combined processing of the MBMS PTM service it receives;

2. The FDD terminal performs the same-frequency measurement on all the above-mentioned known same-frequency cells that participate in the combined processing of the MBMS PTM services received by itself, regardless of whether the known same-frequency cells meet the requirements of the same-frequency measurement criteria;

3. The FDD terminal receiving the MBMS PTM service carried on the MTCH performs identification processing on the unidentified same-frequency cells among the known same-frequency cells;

4. The FDD terminal sorts all the same-frequency cells identified in the above-mentioned known same-frequency cells according to their respective MTCH reception quality, and selects several same-frequency cells with better MTCH reception quality based on the sorting results for use Combine the MBMS PTM services carried on the MTCH.

Embodiment 2, the solution of the present invention is applied on the TDD terminal to realize the implementation process of effectively merging the MBMSPTM service carried on the MTCH:

10. When the TDD terminal is receiving the MBMS PTM service carried on the MTCH, according to the control information carried on the MCCH channel, it knows all the same-frequency cells that participate in the combined processing of the MBMS PTM service it receives;

20. The TDD terminal performs the same-frequency measurement on all the above-mentioned known same-frequency cells participating in the combined processing of the MBMS PTM services received by itself, regardless of whether the learned same-frequency cells meet the requirements of the same-frequency measurement criteria;

30. The TDD terminal receiving the MBMS PTM service carried on the MTCH performs identification processing on the unidentified same-frequency cells among the known same-frequency cells;

40. The TDD terminal sorts all the same-frequency cells identified in the above-mentioned known same-frequency cells according to their respective MTCH reception quality, and selects several same-frequency cells with better MTCH reception quality based on the sorting results for use Combine the MBMS PTM services carried on the MTCH.

In addition, the present invention also proposes another same-frequency cell identification method, which can also be used to identify all the same-frequency cells that participate in the combined processing of broadcast and multicast services when the user terminal is in the state of receiving broadcast and multicast services. identification, and based on the same-frequency cell identification method, the present invention proposes a corresponding broadcast and multicast service combination method, so that the user terminal can be in the same-frequency cells identified by all the same-frequency cells that participate in the combined processing of the broadcast and multicast services received Select several suitable same-frequency cells to perform combined processing on the received broadcast and multicast services, which has achieved the purpose of enabling the user terminal to perform effective combined processing on the broadcast and multicast services received by itself, so as to enhance the coverage of broadcast and multicast services .

Please refer to Fig. 6, which is a flow chart of the main realization principle of another identification method of the same-frequency cell proposed by the present invention, and its main realization process is as follows:

Step S200, UTRAN issues system measurement control information to ensure that all co-frequency cells participating in the combined processing of the broadcast and multicast services received by the user terminal comply with the co-frequency measurement criteria;

Step S210, according to the system measurement control information issued by UTRAN, the user terminal performs co-frequency measurement on all co-frequency cells that meet the co-frequency measurement criteria, so as to identify unidentified cells in all co-frequency cells that meet the co-frequency measurement criteria .

Among them, UTRAN can send system measurement control information that does not include the same-frequency measurement threshold (Sintrasearch) to the current serving cell of the user terminal when the cell hierarchical structure (HCS) is not applied, so as to ensure that the participating user terminals receive the broadcast All co-frequency cells that are combined and processed by the multicast service meet the co-frequency measurement criteria.

Among them, UTRAN can send the system measurement control information not including the same-frequency measurement threshold (Sintrasearch) to the current serving cell of the user terminal when the cell hierarchical structure (HCS) is applied, or send the system measurement control information not including the cell hierarchical structure measurement threshold. Value (SearchHCS) system measurement control information, or when the user terminal is an FDD terminal, send system measurement control information that does not include the inter-frequency measurement threshold (Sintersearch), so as to ensure the combination of broadcast and multicast services received by participating user terminals All processed same-frequency cells comply with the same-frequency measurement criteria.

In addition, when the HCS is not applied, the UTRAN can also send to the current serving cell of the user terminal, including the same-frequency measurement threshold (Sintrasearch) greater than the S criterion for the current serving cell of the user terminal (for the S criterion, please refer to the description of the prior art) The calculated system measurement control information of the reception quality value can ensure that all co-frequency cells participating in the combined processing of the broadcast and multicast services received by the user terminal comply with the co-frequency measurement criterion.

In addition, UTRAN can also send system measurements to the current serving cell of the user terminal when the HCS is applied, including the cell hierarchy measurement threshold (SearchHCS) greater than the reception quality value calculated by the S criterion for the current serving cell of the user terminal Control information, or when the user terminal is an FDD terminal, send system measurement control information including the inter-frequency measurement threshold (Sintersearch) greater than the reception quality value calculated by the S criterion for the current serving cell of the user terminal, so as to ensure participation All the same-frequency cells that are merged and processed by the broadcast and multicast services received by the user terminal meet the same-frequency measurement criterion.

Wherein the broadcast multicast service mentioned in the above process includes but not limited to multimedia broadcast multicast point-to-multipoint service (MBMS PTM service); mentioned user terminal UE includes but not limited to frequency division duplex mode terminal (FDD terminal) and time division duplex mode terminal (TDD terminal).

Based on another same-frequency cell identification method proposed by the present invention, a method for merging broadcast and multicast services is proposed here, please refer to Figure 7, which is another method for merging broadcast and multicast services proposed by the present invention The flow chart of the main implementation principle, the main implementation process is as follows:

Step S300, setting a selection condition in the user terminal in advance, where the set selection condition can be but not limited to:

Sorting each same-frequency cell identified based on all same-frequency cells that meet the same-frequency measurement criteria according to the receiving quality of the broadcast multicast service channel;

And according to the above-mentioned sorting result, select N broadcast multicast service channel receiving quality higher same-frequency sub-districts to be used for carrying out merging process to the received broadcast multicast service (wherein N is a natural number);

Step S310, the UTRAN issues system measurement control information to ensure that all co-frequency cells participating in the combined processing of the broadcast and multicast services received by the user terminal comply with the co-frequency measurement criteria;

Step S320, according to the system measurement control information issued by UTRAN, the user terminal performs co-frequency measurement on all co-frequency cells that meet the same-frequency measurement criteria, so as to identify unidentified cells in all co-frequency cells that meet the co-frequency measurement criteria ;

Step S330, the user terminal selects the corresponding same-frequency cell from the same-frequency cells identified based on all same-frequency cells that meet the same-frequency measurement criteria according to the above-mentioned preset selection conditions, that is, according to the above-mentioned selection conditions, each identified The same-frequency cells are sorted according to the receiving quality of their respective broadcast and multicast service channels, and the same-frequency cells with higher reception quality of the N broadcast and multicast service channels are selected from the ranking results for subsequent execution of the broadcast and multicast services received by themselves. Merge processing;

In step S340, the user terminal performs combining processing on the broadcast and multicast services received by itself based on the same-frequency cell selected above.

Among them, UTRAN can send the system measurement control information that does not include Sintrasearch to the current serving cell of the user terminal when HCS is not applied, so as to ensure that all the same-frequency cells participating in the combined processing of broadcast and multicast services received by the user terminal comply with the same requirements. frequency measurement guidelines.

Among them, UTRAN can send the system measurement control information not including Sintrasearch to the current serving cell of the user terminal when the HCS is applied, or send the system measurement control information not including SearchHCS, or send the system measurement control information not including SearchHCS when the user terminal is an FDD terminal. Sintersearch's system measurement control information can ensure that all co-frequency cells participating in the combined processing of broadcast and multicast services received by user terminals comply with the co-frequency measurement criteria.

In addition, when the HCS is not applied, the UTRAN may also send to the current serving cell of the user terminal a message containing a reception quality value calculated by Sintrasearch greater than the S criterion (see the description of the prior art for details of the S criterion) for the current serving cell of the user terminal. The system measures the control information to ensure that all co-frequency cells participating in the combined processing of the broadcast and multicast services received by the user terminal comply with the co-frequency measurement criteria.

In addition, UTRAN can also send the system measurement control information to the current serving cell of the user terminal when the HCS is applied, which includes SearchHCS greater than the reception quality value calculated by the S criterion for the current serving cell of the user terminal, or FDD in the user terminal When the terminal sends the system measurement control information containing the Sintersearch value greater than the reception quality value calculated by the S criterion for the current serving cell of the user terminal, it can ensure that all the same-frequency cells participating in the combined processing of the broadcast and multicast services received by the user terminal are Comply with the same frequency measurement criteria.

Wherein the broadcast multicast service mentioned in the above process includes but not limited to multimedia broadcast multicast point-to-multipoint service (MBMS PTM service); mentioned user terminal UE includes but not limited to frequency division duplex mode terminal (FDD terminal) and time division duplex mode terminal (TDD terminal).

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (27)

1. the recognition methods of a co-frequency cell is characterized in that, 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.

2. the method for claim 1 is characterized in that, described broadcasting multicast service is the multimedia broadcasting and multicast point-to-multipoint service.

3. the method for claim 1 is characterized in that, described user terminal is:

The mode of frequency division duplexing terminal; Or

The TDD mode terminal.

4. a user terminal is characterized in that, comprising:

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.

5. user terminal as claimed in claim 4 is characterized in that, 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; With

Co-frequency cell is known subelement, is 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.

6. a broadcasting multicast service merging method is characterized in that, 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.

7. method as claimed in claim 6 is characterized in that, 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.

8. as claim 6 or 7 described methods, it is characterized in that described broadcasting multicast service is the multimedia broadcasting and multicast point-to-multipoint service.

9. as claim 6 or 7 described methods, it is characterized in that described user terminal is:

The mode of frequency division duplexing terminal; Or

The TDD mode terminal.

10. a user terminal is characterized in that, comprising:

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.

11. user terminal as claimed in claim 10 is characterized in that, 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.

12. user terminal as claimed in claim 10 is characterized in that, 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; With

Co-frequency cell is known subelement, is 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.

13. the recognition methods of a co-frequency cell is characterized in that, 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.

14. method as claimed in claim 13, it is characterized in that, 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.

15. method as claimed in claim 13 is characterized in that, 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

Send and do 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.

16. method as claimed in claim 13, it is characterized in that, 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＝Q _qualmeas-Qqualmin；

When the current cell type that is operated in of user terminal was the TDD sub-district, the S criterion was:

Srxlev＝Q _rxlevmeas-Qrxlevmin-Pcompensation；

Wherein Squal represents the cell selecting quality, is applicable to the FDD sub-district;

Srxlev represents cell selecting reception level;

Q _QualmeasThe cell quality that expression measures is applicable to the FDD sub-district;

Q _RxlevmeasThe 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.

17. method as claimed in claim 13 is characterized in that, 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＝Q _qualmeas-Qqualmin；

When the current cell type that is operated in of user terminal was the TDD sub-district, the S criterion was:

Srxlev＝Q _rxlevmeas-Qrxlevmin-Pcompensation；

Wherein, Squal represents the cell selecting quality, is applicable to the FDD sub-district; Srxlev represents cell selecting reception level; Q _QualmeasThe cell quality that expression measures is applicable to the FDD sub-district; Q _RxlevmeasThe 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.

18., it is characterized in that described broadcasting multicast service is the multimedia broadcasting and multicast point-to-multipoint service as the described method of 13～17 arbitrary claims.

19., it is characterized in that described user terminal is as the described method of 13～17 arbitrary claims:

The mode of frequency division duplexing terminal; Or

The TDD mode terminal.

20. a broadcasting multicast service merging method is characterized in that, 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.

21. method as claimed in claim 20 is characterized in that, described alternative condition is:

To meet each co-frequency cell that the co-frequency cell of common frequency measurement criterion identifies based on all, sort 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.

22. as claim 20 or 21 described methods, it is characterized in that, 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.

23. as claim 20 or 21 described methods, it is characterized in that, 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

Send and do 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.

24. as claim 20 or 21 described methods, it is characterized in that, 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＝Q _qualmeas-Qqualmin；

When the current cell type that is operated in of user terminal was the TDD sub-district, the S criterion was:

Srxlev＝Q _rxlevmeas-Qrxlevmin-Pcompensation；

Wherein, Squal represents the cell selecting quality, is applicable to the FDD sub-district; Srxlev represents cell selecting reception level; Q _QualmeasThe cell quality that expression measures is applicable to the FDD sub-district; Q _RxlevmeasThe 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.

25. as claim 20 or 21 described methods, it is characterized in that, 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＝Q _qualmeas-Qqualmin；

When the current cell type that is operated in of user terminal was the TDD sub-district, the S criterion was:

Srxlev＝Q _rxlevmeas-Qrxlevmin-Pcompensation；

Wherein Squal represents the cell selecting quality, is applicable to the FDD sub-district;

Srxlev represents cell selecting reception level;

Q _QualmeasThe cell quality that expression measures is applicable to the FDD sub-district;

Q _RxlevmeasThe 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.

26., it is characterized in that described broadcasting multicast service is the multimedia broadcasting and multicast point-to-multipoint service as claim 20 or 21 described methods.

27., it is characterized in that described user terminal is as claim 20 or 21 described methods:

The mode of frequency division duplexing terminal; Or

The TDD mode terminal.

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