CN100415053C - Combination method of broadcast and multicast services and user terminal thereof - Google Patents

Abstract

This invention discloses a merging method for broadcast and multicast services including: a TDD mode terminal at the broadcast and multi-cast state carries out coincidence measurement to the shared local areas taking part in merging process of self receiving broadcast and multicast service and selects shared areas in the selected shared regions to merge the self-received broadcast and multicast services based on the shared local areas, relatively, this invention discloses a user terminal.

Description

Combination method of broadcast and multicast services and user terminal thereof

technical field

The present invention relates to the service combination processing technology in the third generation mobile communication system (3G, The 3rd Generation), in particular to a method for combining broadcast and multicast services 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; 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 cell at this time, the user terminal will perform MBMS PTM service on the current serving cell and neighboring cells The selection merge or soft merge process.

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.

In the current research, the FDD terminals in the idle, CELL_PCH, URA_PCH and CELL_FACH states and receiving the MBMS PTM service carried on the MTCH can identify the same-frequency cell being measured, and will identify the same-frequency cell It is used for combining MBMS PTM services carried on 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.

However, the current research only focuses on the FDD terminal, and only considers that the FDD terminal can combine the same-frequency cells identified in the same-frequency measurement process and can participate in the combined processing of the MBMS PTM services received by itself for the combined MBMS PTM services carried on the MTCH However, user terminals in other working modes (such as TDD terminals, etc.) do not have the ability to perform co-frequency measurement and select co-frequency cells that can participate in the combined processing of MBMS PTM services carried on the MTCH to perform combined processing of MBMS PTM services .

Contents of the invention

The technical problem to be solved by the present invention is to propose a method for combining broadcast and multicast services, so that the TDD terminal can use the same-frequency cell in the same-frequency measurement process to perform combined processing on the received broadcast and multicast services, and expand the TDD terminal ability to work.

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 merging broadcast and multicast services, comprising the steps of:

The time division duplex mode terminal in the state of receiving the broadcast multicast service performs the same frequency measurement on the same frequency cells participating in the combined processing of the broadcast multicast service received by itself; and

Select an intra-frequency cell among the measured intra-frequency cells; and

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

Preferably, the terminal in time division duplex mode knows, according to the control information carried on the broadcast multicast service control channel, the same-frequency cells that participate in the combined processing of the broadcast multicast service received by itself.

Preferably, the terminal in time division duplex mode performs same-frequency measurement on same-frequency cells that participate in combined processing of broadcast and multicast services received by itself under the condition of meeting the same-frequency measurement criteria.

Preferably, the process of selecting the same-frequency cell from the measured same-frequency cells includes:

Pre-set selection criteria;

The terminal in time division duplex mode selects a corresponding same-frequency cell from the measured same-frequency cells according to the selection condition.

Preferably, the selection criteria are:

sorting the cells of the same frequency measured by the terminal in the time division duplex mode according to the reception quality of the broadcast multicast service channel; and

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

Preferably, the specific process of selecting the same-frequency cell among the measured same-frequency cells includes:

The TDD mode terminal identifies an unidentified same-frequency cell among the measured same-frequency cells; and

Select the same-frequency cell from the identified same-frequency cells.

Preferably, the process of selecting a same-frequency cell among the identified same-frequency cells includes:

Pre-set selection criteria;

The terminal in time division duplex mode selects a corresponding same-frequency cell from the identified same-frequency cells according to the selection condition.

Preferably, the selection criteria are:

Sorting the same-frequency cells identified by the time division duplex mode terminal according to the reception quality of the broadcast multicast service channel; and

According to the sorting result, select N same-frequency cells with high 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.

A user terminal, where the user terminal works in a time division duplex mode, comprising:

The same-frequency measurement unit is used to perform same-frequency measurement processing on the same-frequency cells participating in the combined processing of the broadcast and multicast services received by the user terminal;

a selection unit, configured to select a same-frequency cell from the same-frequency cells measured by the same-frequency measurement unit;

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

Preferably, the selection unit specifically includes:

The first selection condition setting subunit is used to pre-set the first selection condition;

The first selection subunit is configured to select a corresponding same-frequency cell from the same-frequency cells measured by the same-frequency measurement unit according to the first selection condition set in the first selection condition setting subunit.

Preferably, the first selection condition preset by the first selection condition setting subunit is:

sorting the same-frequency cells measured by the same-frequency measurement unit according to the receiving quality of the broadcast multicast service channel; and

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

Preferably, the selection unit specifically includes:

An identification subunit, configured to identify unidentified same-frequency cells among the same-frequency cells measured by the same-frequency measurement unit;

The selection subunit is configured to select an intra-frequency cell from the intra-frequency cells identified by the identification subunit.

Preferably, the selection subunit specifically includes:

The second selection condition setting subunit is used to pre-set the second selection condition;

The second selection subunit is configured to select a corresponding same-frequency cell from the same-frequency cells identified by the identification subunit according to the second selection condition preset by the second selection condition setting subunit.

Preferably, the second selection condition preset by the second selection condition setting subunit is:

sorting the same-frequency cells identified by the identification subunit according to the reception quality of the broadcast multicast service channel; and

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

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

In the present invention, the TDD terminal in the state of receiving the broadcast multicast service performs the same-frequency measurement on the same-frequency cells participating in the combined processing of the broadcast and multicast services received by itself, and selects the same-frequency cell from the measured same-frequency cells, and based on the obtained The selected same-frequency cell performs combined processing on the broadcast and multicast services received by itself, thereby realizing the purpose of introducing the ability of existing FDD terminals to perform combined processing on received MBMS PTM services into TDD terminals, and applying this method to TDD The terminal enables the TDD terminal to have the ability to effectively perform combined processing of the same-frequency inter-cell services for the received broadcast and multicast services, improves the coverage of the broadcast and multicast services between TDD cells, and enhances the working ability of the TDD terminal.

Description of drawings

Fig. 1 is the flow chart of the main realization principles of the method for combining broadcast and multicast services 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 a first embodiment of a specific composition structure of a selection unit in a user terminal according to the present invention;

FIG. 4 is a block diagram of a second embodiment of the specific composition structure of the selection unit in the user terminal of the present invention;

FIG. 5 is a specific structural block diagram of the selection subunit in FIG. 4 above.

Detailed ways

According to the ability of the existing FDD terminal itself to perform service combination processing on the MBMSPTM service received from the same frequency cell, the solution of the present invention introduces the ability to combine the received broadcast and multicast services on the TDD terminal, so that the TDD terminal It is also possible to effectively implement the same-frequency inter-cell service combination for the received MBMS service, so as to improve the coverage of the MBMS service between TDD cells and expand the working capability of the TDD terminal.

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 broadcast multicast service combination method of the present invention, and its main realization process is as follows:

Step S10, the time division duplex mode terminal (TDD terminal) in the state of receiving the broadcast multicast service performs the same frequency measurement on the same frequency cell participating in the combined processing of the broadcast multicast service received by itself;

Wherein, the TDD terminal can know the same-frequency cells participating in the combined processing of the broadcast-multicast services received by itself according to the control information carried by the UTRAN on the broadcast-multicast service control channel, and perform same-frequency measurement processing on the known same-frequency cells;

In addition, the TDD terminal can also perform same-frequency measurement only on the same-frequency cells that participate in the combined processing of the broadcast and multicast services received by itself under the condition of meeting the same-frequency measurement criteria.

Step S20, the TDD terminal selects the same-frequency cell among the above-mentioned measured same-frequency cells;

The process of selecting the same-frequency cell among the above-mentioned measured same-frequency cells may be, but not limited to, the following process:

Set a same-frequency cell selection condition in the TDD terminal equipment in advance;

The TDD terminal selects the corresponding same-frequency cell among the above-mentioned measured same-frequency cells according to the set selection condition;

The pre-set same-frequency cell selection conditions can be but not limited to:

Sorting the above-mentioned co-frequency cells measured by the TDD terminal according to the receiving quality of their respective broadcast and multicast service channels;

And according to the sorting result, N same-frequency cells with relatively high reception quality of the broadcast multicast service channel are selected for subsequent merge processing of the received broadcast multicast service, where N is a natural number.

In step S30, the TDD terminal performs combining processing on the broadcast and multicast services received by itself based on the same-frequency cell selected above.

As mentioned above, compared with the process in which the FDD terminal combines the MBMS PTM services received by the FDD terminal in the prior art, TDD The terminal can directly select the same-frequency cells for subsequent merging processing from the measured same-frequency cells, and it is not required that these selected same-frequency cells must be the same-frequency cells that have been identified by the TDD terminal. The main reason why the TDD terminal can handle this It is because in the current UMTS system, the SCCPCH channel carrying MBMS service information in TDD mode is sent in a certain downlink time slot, and the TDD terminal receiving MBMS service can directly obtain its transmission information in the same-frequency adjacent cell in the current serving cell. TDD inter-frequency cells are completely synchronized, and the TDD terminal knows the timing information of the current serving cell, and obtains the broadcast channel information of the adjacent cell through the adjacent cell information sent by the current serving cell, so it can In the measurement of adjacent cells, the channels carrying MBMS service information of adjacent cells of the same frequency are searched, so as to perform the combination processing of MBMS services.

Of course, the TDD terminal can also identify an unidentified same-frequency cell among the measured same-frequency cells, and select the corresponding same-frequency cell based on the identified same-frequency cell to execute the broadcast and multicast service received by itself. Combine processing.

That is, the specific processing procedure for the above-mentioned TDD terminal to select the same-frequency cell from the measured same-frequency cells may include:

The TDD terminal performs identification processing on unidentified same-frequency cells among the measured same-frequency cells; and selects a corresponding same-frequency cell from the identified same-frequency cells. The process of selecting the same-frequency cell among the identified same-frequency cells may be, but not limited to, the following process:

Set a same-frequency cell selection condition in the TDD terminal equipment in advance;

The TDD terminal selects the corresponding same-frequency cell among the identified same-frequency cells according to the set selection condition;

The pre-set same-frequency cell selection conditions can be but not limited to:

Sort the same-frequency cells identified above by the TDD terminal according to the reception quality of their respective broadcast and multicast service channels;

And according to the sorting result, N same-frequency cells with relatively high reception quality of the broadcast multicast service channel are selected for subsequent merge processing of the received broadcast multicast service, where N is a natural number.

Wherein the broadcast multicast service mentioned in the whole process above can be but not limited to multimedia broadcast multicast point-to-multipoint service (MBMS PTM service).

The following is the main implementation process of the MBMS PTM service received from the same-frequency cells after the TDD terminal applies the scheme of the present invention to perform service merging:

1. The TDD terminal receives the system information delivered by UTRAN, and measures the reception quality of the current serving cell;

2. The TDD terminal, which is receiving the MBMS PTM service carried on the MTCH, measures the co-frequency cells participating in the combined processing of the MBMS PTM service it receives;

3. The TDD terminal sorts the measured same-frequency cells according to their respective MTCH reception quality, and selects several same-frequency cells with relatively high MTCH reception quality among the sorted same-frequency cells for the MBMS PTM received by itself. Business execution merge processing.

In the above steps 2 and 3, the TDD terminal measures the co-frequency cells used for combining processing to perform combining processing on the MBMS PTM services received by itself. There are two implementation methods, one is to completely identify the measured co-frequency cells The other is to select the same-frequency cells for service combination directly after measuring the same-frequency cells participating in the service combination process, without completely identifying the unidentified cells. The identified co-frequency cell.

Based on the method for merging broadcast and multicast services proposed above in the present invention, the present invention also proposes a user terminal device correspondingly here. Please refer to Fig. 2, which is a block diagram of the main components of the user terminal of the present invention, wherein the user terminal proposed here is required to work in the TDD mode, mainly including the same frequency measurement unit 10, the selection unit 20 and the business combination unit 30, the several of which The main functions of the section are as follows:

The same-frequency measurement unit 10 is used to perform same-frequency measurement processing on the same-frequency cells participating in the combined processing of the broadcast and multicast services received by the user terminal;

A selection unit 20, configured to select a same-frequency cell among the same-frequency cells measured by the above-mentioned same-frequency measurement unit 10;

The service merging unit 30 is configured to perform merging processing on the broadcast and multicast services received by the user terminal based on the same-frequency cell selected by the selection unit 20 .

Please refer to FIG. 3, which is a block diagram of the first embodiment of the specific composition structure of the selection unit in the user terminal of the present invention. The selection unit mainly includes a first selection condition setting subunit 210 and a first selection subunit 220. These two components The main functions are as follows:

The first selection condition setting subunit 210 is used to preset the first selection condition; wherein the first selection condition preset in the first selection condition setting subunit 210 can be but not limited to:

The same-frequency cells measured by the same-frequency measurement unit 10 are sorted according to the receiving quality of their broadcast and multicast service channels;

And according to the sorting results, select N same-frequency cells with higher reception quality of broadcast and multicast service channels, where N is a natural number;

The first selection subunit 220 is used to select the corresponding same-frequency cell among the same-frequency cells measured by the same-frequency measurement unit 10 according to the first selection condition preset in the first selection condition setting subunit 210, that is, according to the above-mentioned The first selection condition sets the selection condition preset by the subunit 210. Here, the first selection subunit 220 will combine the same-frequency cells measured by the same-frequency measurement unit 10 and participate in the combined processing of the broadcast and multicast services received by the user terminal according to their respective The reception quality of the broadcast multicast service channel is sorted, and N same-frequency cells with relatively high reception quality of the broadcast multicast service channel are selected according to the sorting results for the subsequent service merging unit 30 to perform merging processing on the received broadcast multicast service.

Please refer to FIG. 4, which is a block diagram of the second embodiment of the specific composition structure of the selection unit in the user terminal of the present invention. The selection unit mainly includes an identification subunit 230 and a selection subunit 240. The main functions of these two components are as follows:

The identifying subunit 230 is configured to identify unidentified same-frequency cells among the same-frequency cells measured by the above-mentioned same-frequency measurement unit 10;

The selection subunit 240 is configured to select a corresponding same-frequency cell among the same-frequency cells identified by the identification subunit 230 for subsequent service combination unit 30 to perform combination processing on the received broadcast and multicast services.

Please refer to FIG. 5 , which is a specific structural block diagram of the selection subunit in the above-mentioned FIG. 4 , wherein the selection subunit specifically includes a second selection condition setting subunit 2410 and a second selection subunit 2420 . as follows:

The second selection condition setting subunit 2410 is used to preset the second selection condition; wherein the second selection condition preset in the second selection condition setting subunit 2410 can be but not limited to:

Sorting the same-frequency cells newly identified by the identification subunit 230 and the previously identified same-frequency cells according to the receiving quality of their respective broadcast and multicast service channels;

And according to the sorting results, select N same-frequency cells with higher reception quality of broadcast and multicast service channels, where N is a natural number;

The second selection subunit 2420 is configured to select from the same-frequency cells newly identified by the identification sub-unit 230 and the previously identified same-frequency cells according to the second selection condition preset by the second selection condition setting subunit 2410 The corresponding same-frequency cell, that is, according to the selection condition preset by the second selection condition setting subunit 2410, the second selection subunit 2420 here will combine the same-frequency cell newly identified by the identification subunit 230 with the previously identified The same-frequency cells are sorted according to the receiving quality of their respective broadcast multicast service channels, and select N broadcast multicast service channel receiving quality higher same-frequency cells according to the sorting results for the subsequent service combining unit 30 to receive the broadcast group Broadcast services are merged.

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 (15)

1. A method for merging broadcast and multicast services, characterized in that, comprising steps: The time division duplex mode terminal in the state of receiving the broadcast multicast service performs the same frequency measurement on the same frequency cells participating in the combined processing of the broadcast multicast service received by itself; and Selecting an intra-frequency cell according to setting conditions among the measured intra-frequency cells; and Combine the broadcast and multicast services received by itself based on the selected same-frequency cell. 2. The method according to claim 1, wherein the terminal in time division duplex mode learns the same-frequency cells that participate in the combined processing of the broadcast and multicast services received by itself according to the control information carried on the broadcast and multicast service control channel. 3. The method according to claim 1, wherein the TDD mode terminal performs co-frequency measurement on co-frequency cells that participate in the combined processing of broadcast and multicast services received by itself under the conditions of co-frequency measurement criteria. 4. The method according to claim 1, wherein the process of selecting the same-frequency sub-district in the same-frequency sub-district of the measurement comprises: Preset selection criteria; The terminal in time division duplex mode selects a corresponding same-frequency cell from the measured same-frequency cells according to the selection condition. 5. method as claimed in claim 4, is characterized in that, described selection condition is: sorting the cells of the same frequency measured by the terminal in the time division duplex mode according to the reception quality of the broadcast multicast service channel; and According to the sorting result, select N same-frequency cells with high reception quality of the broadcast multicast service channel, where N is a natural number. 6. The method according to claim 1, wherein the specific process of selecting the same-frequency sub-district in the same-frequency sub-district of the measurement comprises: The TDD mode terminal identifies an unidentified same-frequency cell among the measured same-frequency cells; and Select the same-frequency cell from the identified same-frequency cells. 7. The method according to claim 6, wherein the process of selecting the same-frequency sub-district in the identified co-frequency sub-district comprises: Preset selection criteria; The terminal in time division duplex mode selects a corresponding same-frequency cell from the identified same-frequency cells according to the selection condition. 8. method as claimed in claim 7, is characterized in that, described selection condition is: Sorting the same-frequency cells identified by the time division duplex mode terminal according to the reception quality of the broadcast multicast service channel; and According to the sorting result, select N same-frequency cells with high reception quality of the broadcast multicast service channel, where N is a natural number. 9. The method according to any one of claims 1 to 8, wherein the broadcast multicast service is a multimedia broadcast multicast point-to-multipoint service. 10. A user terminal, the user terminal works in a time division duplex mode, is characterized in that, comprising: The same-frequency measurement unit is used to perform same-frequency measurement processing on the same-frequency cells participating in the combined processing of the broadcast and multicast services received by the user terminal; A selection unit, configured to select an intra-frequency cell according to setting conditions among the same-frequency cells measured by the same-frequency measurement unit; A service merging unit, configured to perform merging processing on the broadcast and multicast services received by the user terminal based on the same-frequency cell selected by the selecting unit. 11. The user terminal according to claim 10, wherein the selection unit specifically comprises: The first selection condition setting subunit is used to pre-set the first selection condition; The first selection subunit is configured to select a corresponding same-frequency cell from the same-frequency cells measured by the same-frequency measurement unit according to the first selection condition set in the first selection condition setting subunit. 12. The user terminal according to claim 11, wherein the first selection condition preset by the first selection condition setting subunit is: sorting the same-frequency cells measured by the same-frequency measurement unit according to the receiving quality of the broadcast multicast service channel; and According to the sorting result, select N same-frequency cells with high reception quality of the broadcast multicast service channel, where N is a natural number. 13. The user terminal according to claim 10, wherein the selection unit specifically comprises: An identification subunit, configured to identify unidentified same-frequency cells among the same-frequency cells measured by the same-frequency measurement unit; The selection subunit is configured to select an intra-frequency cell from the intra-frequency cells identified by the identification subunit. 14. The user terminal according to claim 13, wherein the selection subunit specifically comprises: The second selection condition setting subunit is used to pre-set the second selection condition; The second selection subunit is configured to select a corresponding same-frequency cell from the same-frequency cells identified by the identification subunit according to the second selection condition preset by the second selection condition setting subunit. 15. The user terminal according to claim 14, wherein the second selection condition preset by the second selection condition setting subunit is: sorting the same-frequency cells identified by the identification subunit according to the reception quality of the broadcast multicast service channel; and According to the sorting result, N same-frequency cells with high reception quality of the broadcast multicast service channel are selected, where N is a natural number.

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