WO2007033585A1

WO2007033585A1 - A transmitting and receiving method, system and receiving apparatus for broadcast/multicast service control message

Info

Publication number: WO2007033585A1
Application number: PCT/CN2006/002446
Authority: WO
Inventors: Hao Hu
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2005-09-20
Filing date: 2006-09-19
Publication date: 2007-03-29
Also published as: CN1937834A; CN100450296C

Abstract

A transmitting method, receiving method, transmitting system and receiving apparatus for broadcast/multicast service control message, the method is adapted to the system assigning dedicated carrier frequency band for broadcast/multicast service, it comprises: the network side sends the broadcast/multicast service control message to user equipment (UE) over the non-dedicated carrier frequency band for broadcast/multicast; UE receives the broadcast/multicast service control message over the non-dedicated carrier frequency band for broadcast/multicast and/or receives the broadcast/multicast service control message over the dedicated carrier frequency band for broadcast/multicast, based on the instance that the broadcast/multicast service control message is transmit on which carrier frequency band. Using the transmitting method, receiving method, transmitting system and receiving apparatus for broadcast/multicast service control message according to the invention, UE can correctly receive the broadcast/multicast service control message in the system that assigns dedicated carrier frequency band for broadcast/multicast service.

Description

Method and system for transmitting and receiving broadcast/multicast service control information and receiving device

The present invention relates to a broadcast/multicast service technology, and in particular to a method, a receiving method, a transmission system and a receiving device for transmitting broadcast/multicast service control information in a broadcast/multicast service based on a dedicated carrier. Background of the invention

Multicast and broadcast are technologies that transfer data from one data source to multiple destinations. In a conventional mobile communication network, a cell multicast service or a cell broadcast service (CBS) allows low bit rate data to be transmitted to all users through a cell shared broadcast channel, which is a message type service.

In order to effectively utilize mobile communication network resources, the Third Generation Mobile Communications Global Standards Organization (3GPP) proposes a multicast/broadcast service (MBMS) for mobile communication networks to provide a data source to multiple users in a mobile communication network. Point-to-multipoint service of data, realize network resource sharing, and improve utilization of network resources, especially air interface resources. The MBMS proposed by 3GPP can not only realize plain-text low-rate message-like multicast and broadcast, but also realize multicast and broadcast of high-speed multimedia services, which undoubtedly conforms to the trend of future mobile data development.

FIG. 1 is a schematic diagram of a structure of a wireless network supporting broadcast/multicast services. As shown in FIG. 1 , in the existing 3GPP, a wireless network entity supporting broadcast/multicast services is a broadcast/multicast service server (BM-SC), BM. - The SC is connected to the Gateway GPRS Support Node (GGSN) via a Gmb interface or a Gi interface. One BM-SC can be connected to multiple GGSs; the GGSN and the Serving GPRS Support Node (SGSN) through the Gn/Gp interface. The Serving GPRS Support Node is connected, and a GGSN can be connected to multiple SGSNs; the SGSN can be connected to the Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UTRAN) through the Iu interface, and then the UTRAN is connected to the UE through the Uu interface, and the SGSN also It can be connected to the Global System for Mobile Communications Enhanced Radio Access Network (GE A) through the Iu/Gb interface, and then the GERAN is connected to the UE through the Um interface. Among them, the GGSN and the SGSN belong to nodes in the core network (CN) in the wireless network.

MBMS includes multicast mode and broadcast mode, all of which can be transmitted in MBMS PTM transmission mode. The related radio control information includes service information, access information, radio bearer information, and frequency layer convergence (FLC) information, all controlled by radio resources. The (RRC) layer is transmitted over a logical channel, such as an MBMS Point-to-Multipoint Control Channel (MCCH). Generally, MCCH information is transmitted based on a fixed scheduling manner, and in order to improve reliability and stability, the UTRAN repeatedly transmits MCCH information. 2 is a transmission scheduling diagram of MCCH information. As shown in FIG. 2, the period of repeatedly transmitting MCCH information is a repetition period (RP), and the complete MCCH information is periodically transmitted according to a repetition period. The modification period (MP) is defined as an integer multiple of the repetition period, and the MCCH information is modified during each modification period. The access information of the MBMS may be periodically transmitted according to the access information period, and the access information period is an integer division of the repetition period. MCCH scheduling is consistent for all services.

The MCCH information is further divided into key information and non-critical information. The key information is MBMS neighboring cell information, MBMS service information, MBMS wireless. The MBMS radio bearer information is cyclically transmitted in the repetition period and the modification period. The key information cannot be changed in each modification period. The non-critical information refers to the MBMS access information, which is in the connection. The access information can be modified at any time during the ingress period. The black filled square in Figure 2 represents the change information. The UTRAN transmits MBMS control information to the UE through the MBMS Control Channel MCCH. Since the current R6 MBMS uses the same carrier frequency band (referred to as carrier frequency) as the WCDMA system, the transmission of control information on the MCCH channel is performed through the carrier frequency band of the existing 3G network, that is, the UE does not have the selected carrier frequency band to receive the MBMS. The problem of controlling information.

The description of the specific MBMS control information, and the transmission and UE receiving method are as follows: Regardless of the state of the UE (idle, URA_PCH ₅ CELL-PCH, CELL-FACH and CELL-DCH), as long as the UE joins the MBMS service, then All need to receive control information carried on the MCCH related to its service.

As described above, the control information is divided into key information and non-critical information. The access information is non-critical information and is transmitted according to its own unique access information cycle; other key MCCH control information is periodically transmitted, and the period includes a modification period and a repetition period.

If the service is transmitted using the PTM bearer mode, the user also needs to receive the MSCH channel, and the transmission information on the MBMS service transmitted on the SCCPCH physical channel is specifically transmitted.

The UTRAN transmission MBMS control information is performed in a special order to ensure that the user captures the MBMS control information carried on the MCCH with minimal time and does not receive unnecessary control information.

The MBMS control information carried on the MCCH that the UE needs to receive is shown in Figure 3, and contains the following information:

1, MBMS change information (MBMS MODIFIED INFORMATION);

2. MBMS UNMODIFIED INFORMATION;

3. MBMS access information (MBMS ACCESS INFORMATION);

4 MBSM GENERAL INFORMATION;

5. MBMS public PTM radio bearer information (MBMS COMMON PTM RB INFORMATION); 6. MBMS current cell PTM radio bearer information (MBMS CURRENT CELL PTM RB INFORMATION);

7. MBMS Neighboring Cell P-T-M Radio Bearer Information (MBMS NEIGHBOURING CELL P-T-M RB INFORMATION );

That is, the UTRAN sends the MBMS-related control information to the relevant UE, and the UE selectively receives some or all of the MBMS control information according to the service situation that it joins.

Due to the large number of types of services involved in the MBMS system, from background services such as software downloads to real-time services such as video browsing. As the number of service providers (SPs) increases, the number of services will continue to increase. Currently, MBMS is an enhancement of the existing WCDMA system, which uses the resources of the existing WCDMA, that is, the existing transport channel and physical channel are used. The consequence is that MBMS occupies a large amount of existing wireless resources. This impact exists in two ways: First, the existing business is greatly affected; rather, the type of business that MBMS can provide at the same time is greatly limited.

From the current point of view, it is necessary to allocate a downlink carrier for MBMS alone. On the one hand, it can liberate the resources of the existing system and facilitate the effective use of the resources of the system; on the other hand, from the perspective of the operator, the benefits can be far greater than the cost of setting up a dedicated single carrier frequency band.

Therefore, introducing a new carrier frequency band to carry MBMS services and coordinating with the original MBMS carrier will be a good method to solve the air interface to MBMS service capacity limitation. However, the MBMS service control information transmission and the UE receiving process based on the dedicated carrier frequency band MBMS system do not have a clear implementation process, and the UE cannot correctly receive the broadcast/multicast service in the broadcast/multicast service based on the dedicated carrier. Control information. Summary of the invention

In view of this, the main object of the present invention is to provide a method for transmitting broadcast/multicast service control information, a receiving method, a transmission system, and a receiving device, which enable a UE to be correctly implemented in a broadcast/multicast service based on a dedicated carrier. Receive broadcast/multicast service control information.

To achieve the above object, the present invention first provides a method for transmitting broadcast/multicast service control information, which is applicable to a system for allocating a dedicated carrier frequency band for broadcast/multicast services, including the following steps:

A. The network side sends the broadcast/multicast service control information to the user equipment UE in the non-broadcast/multicast dedicated carrier frequency band and/or the broadcast/multicast dedicated carrier frequency band;

B. The UE receives the broadcast/multicast service control information and/or the broadcast/multicast dedicated carrier frequency band according to the carrier/broadcast service carrier frequency on which carrier frequency band the broadcast/multicast service control information is transmitted. Receive broadcast/multicast service control information.

In the step B, when the UE is in the non-broadcast/multicast dedicated carrier frequency band, the UE may first receive the broadcast/multicast service control information on the control channel of the non-broadcast/multicast dedicated carrier frequency band, and if not received, Receiving broadcast/multicast service control information on a control channel of a broadcast/multicast dedicated carrier frequency band;

When the UE is in the broadcast/multicast dedicated carrier frequency band, it first receives the broadcast/multicast service control information on the control channel of the broadcast/multicast dedicated carrier frequency band. If not, it goes to the non-broadcast/multicast dedicated carrier frequency band. The broadcast/multicast service control information is received on the control channel.

In the step A, the network side may send all broadcast/multicast service control information to the UE in the non-broadcast/multicast dedicated carrier frequency band;

In the step B, the UE receives the broadcast/multicast service control information from the non-broadcast/multicast dedicated carrier frequency band; after receiving the broadcast/multicast service control information, the UE sends the broadcast/multicast dedicated carrier frequency band according to the control information. Receiving broadcast/multicast services;

In the process of receiving the broadcast/multicast service, the UE returns to the non-broadcast/multicast dedicated carrier frequency band. Receive broadcast/multicast service control information.

During the process of transmitting the broadcast/multicast service, the network side may send a broadcast/multicast service control information change notification to the UE on the broadcast/multicast dedicated carrier frequency band when the broadcast/multicast service control information changes;

The method for the UE to return the broadcast/multicast service control information on the non-broadcast/multicast dedicated carrier frequency band is:

After receiving the broadcast/multicast service control information change notification, the UE returns to the non-broadcast/multicast dedicated carrier frequency band to receive the changed broadcast/multicast service control information; if the broadcast/multicast service continues, the UE turns to The broadcast/multicast service continues to be received on the broadcast/multicast dedicated carrier frequency band.

In the step B, if the UE directly enters the broadcast/multicast dedicated carrier frequency band after the UE is powered on, the UE may first receive the broadcast/group on the non-broadcast/multicast dedicated carrier frequency band when preparing to receive the broadcast/multicast service. Broadcast service control information.

In the step A, the network side may send all broadcast/multicast service control information to the UE in the broadcast/multicast dedicated carrier frequency band;

In the step B, when the UE prepares to receive the broadcast/multicast service, it first transfers to the broadcast/multicast dedicated carrier frequency band, and then receives the broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band;

The UE receives the broadcast/multicast service on the broadcast/multicast dedicated carrier frequency band according to the received broadcast/multicast service control information.

After receiving the broadcast/multicast service control information change notification, the UE receives the changed broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band. In the step B, if the UE directly enters the broadcast/multicast dedicated carrier frequency band after the UE is powered on, the UE can directly receive the broadcast/multicast on the broadcast/multicast dedicated carrier frequency band when preparing to receive the broadcast/multicast service. Business control information.

In the step A, the network side may send part of the broadcast/multicast service control information in the broadcast/multicast dedicated carrier frequency band, and send it to the UE in the non-broadcast/multicast dedicated carrier frequency band;

In the step B, the UE first receives part of the control information on the non-broadcast/multicast dedicated carrier frequency band, and then transfers to the broadcast/multicast dedicated carrier frequency band to receive part of the control information; or first transfers to the broadcast/multicast dedicated carrier. Receiving part of the control information on the frequency band, and then returning to the non-broadcast/multicast dedicated carrier frequency band to receive part of the control information.

The part of the control information sent by the network side on the broadcast/multicast dedicated carrier frequency band may be completely different from the partial control information sent on the non-broadcast/multicast dedicated carrier frequency band, so that the control information on the two carrier frequency bands is completely different;

Or the control information sent by the network side on the broadcast/multicast dedicated carrier frequency band may be partially different and partially the same as the control information sent on the non-broadcast/multicast dedicated carrier frequency band, so that the two carrier frequency bands have the same part. There are also different parts.

In the step A, the network side may send the changed and non-changing broadcast/multicast service control information and the radio bearer information in the broadcast/multicast dedicated carrier frequency band; the broadcast/multicast service general information is not broadcast/ The multicast dedicated carrier frequency band is sent to the UE, or the broadcast/multicast service common information and the changed broadcast/multicast service control information are sent to the UE in the non-broadcast/multicast dedicated carrier frequency band;

In the step B, the device first transfers to the non-broadcast/multicast dedicated carrier frequency band to receive the broadcast/multicast service general information and/or the changed broadcast/multicast service control information and then returns to the broadcast/multicast dedicated carrier frequency band. Receiving changed and non-changing broadcast/multicast service control information and radio bearer information on a broadcast/multicast dedicated carrier frequency band; After the control information is received, the broadcast/multicast service is received on the broadcast/multicast dedicated carrier frequency band.

In the step A, the network side may send the changed and non-changing broadcast/multicast service control information and the radio bearer information in the non-broadcast/multicast dedicated carrier frequency band; the broadcast/multicast service general information is broadcasted/ The multicast dedicated carrier frequency band is sent to the UE, or the broadcast/multicast service common information and the changed broadcast/multicast service control information are sent to the UE in the broadcast/multicast dedicated carrier frequency band;

In the step B, the UE first receives the broadcast/multicast service common information and/or the changed broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band, and then transfers to the non-broadcast/multicast dedicated carrier frequency band. Receiving changed and non-changing broadcast/multicast service control information and radio bearer information.

In the step B, if the UE directly enters the broadcast/multicast dedicated carrier frequency band after the UE is powered on, the UE may first receive the broadcast/multicast on the broadcast/multicast dedicated carrier frequency band when preparing to receive the broadcast/multicast service. Business control information.

After receiving the broadcast/multicast service control information change notification, the UE returns to the non-broadcast/multicast dedicated carrier frequency band to receive the changed broadcast/multicast service control information; or receives the changed broadcast on the broadcast/multicast dedicated carrier frequency band. /Multicast service control information.

In the step A, the network side may send all the broadcast/multicast service control information to the UE in the non-broadcast/multicast dedicated carrier frequency band and the non-broadcast/multicast dedicated carrier frequency band simultaneously; in the step B, the UE Receiving broadcast/multicast service control information on a non-broadcast/multicast dedicated carrier frequency band and/or receiving broadcast/multicast service control information on a broadcast/multicast dedicated carrier frequency band according to the current frequency. In the step B, if the UE is currently in the non-broadcast/multicast dedicated carrier frequency band, the broadcast/multicast service control information may be received on the non-broadcast/multicast dedicated carrier frequency band;

If the UE directly enters the broadcast/multicast dedicated carrier frequency band after the UE is powered on, the UE directly receives the broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band when preparing to receive the broadcast/multicast service.

During the process of transmitting the broadcast/multicast service, the network side may send a broadcast to the UE on the broadcast/multicast dedicated carrier frequency band and/or the non-broadcast/multicast dedicated carrier frequency band when the broadcast/multicast service control information changes. Multicast service control information change notification;

After receiving the broadcast/multicast service control information change notification, the UE receives the changed broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band and/or returns the non-broadcast/multicast dedicated carrier frequency band to receive the change. Broadcast/multicast service control information.

The UE may pre-record the broadcast/multicast service dedicated carrier frequency band information, or in the step A, the network side further sends the broadcast/multicast dedicated carrier frequency band information to the UE on the non-broadcast/multicast dedicated carrier frequency band;

In the step B, the broadcast/multicast service control information is received on the broadcast/multicast dedicated carrier frequency band according to the recorded or received broadcast/multicast dedicated carrier frequency band information.

The method for the network side to send the broadcast/multicast dedicated carrier frequency band information to the UE may be: The network side sends the broadcast/multicast dedicated carrier frequency band information to the 定时 according to the transmission period of the broadcast channel or the control channel on the broadcast channel or the control channel. .

In the step A, the network side may further send an indication of the broadcast/multicast service control information on the carrier frequency band to the UE on the non-broadcast/multicast dedicated carrier frequency band;

In the step B, the UE receives the broadcast/multicast service control information on the corresponding carrier frequency band according to the indication;

Or the network side and the UE pre-set to send broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band and/or the non-broadcast/multicast dedicated carrier frequency band, and the UE records the setting; In the step B, the HE receives the broadcast/multicast service control information on the corresponding carrier frequency band according to the recorded setting.

The method for the network side to send the transmit/multicast service control information indication on the carrier frequency band to the UE may be:

The network side periodically transmits an indication of the broadcast/multicast service control information on the carrier frequency band to the UE on the broadcast channel or the control channel according to the transmission period of the broadcast channel or the control channel.

After receiving the control information, or receiving the broadcast/multicast service, the UE may select the service priority when receiving the control information of the current broadcast/multicast service, and determine which service to receive next. The broadcast/multicast service further determines whether to receive subsequent control information of the broadcast/multicast service.

If the UE receives the paging information of the non-broadcast/multicast service in the process of receiving the broadcast/multicast service control information or the broadcast/multicast service data, and the UE determines that the service priority is higher than the broadcast/multicast service, The UE may stop receiving the broadcast/multicast service control information or the broadcast/multicast service data, and receive the non-broadcast/multicast service on the non-broadcast/multicast dedicated carrier frequency band.

The UE that is ready to receive the broadcast/multicast service may be: a UE that joins the multicast service; or a UE that has subscribed to the broadcast service.

The present invention further provides a method for a user equipment UE to receive broadcast/multicast service control information, the method being applicable to a system for allocating a dedicated carrier frequency band for a broadcast/multicast service, comprising the following steps:

a. The UE learns which carrier frequency band the broadcast/multicast service control information is transmitted on. b. The UE transmits the broadcast/multicast service control information on the same carrier frequency band, on the non-broadcast/multicast dedicated carrier frequency band. Receiving broadcast/multicast service control information and/or receiving broadcast/multicast service control information on a broadcast/multicast dedicated carrier frequency band.

The invention also provides a transmission system for broadcast/multicast service control information, including setting a carrier frequency band allocation module, a service control information generating module, and a service control information sending module on the network side; a carrier frequency band use situation obtaining module and a service control information receiving module disposed on the user equipment UE side;

And the carrier frequency band allocation module performs frequency allocation, and notifies the service control information sending module of the broadcast/multicast service control information on which carrier frequency band is transmitted;

The service control information generating module is configured to generate broadcast/multicast service control information and send the information to the service control information sending module according to the broadcast/multicast service situation;

The service control information sending module sends the broadcast/multicast service control information on the non-broadcast/multicast dedicated carrier frequency band according to the notification of the carrier frequency band allocation module, and the broadcast/multicast service control information received from the service control information generating module Information and/or transmission of broadcast/multicast service control information on a broadcast/multicast dedicated carrier frequency band;

The carrier frequency band usage obtaining module acquires a situation in which carrier frequency band of the broadcast/multicast service control information is transmitted, and notifies the service control information receiving module;

The service control information receiving module receives the broadcast/multicast service control information on the non-broadcast/multicast dedicated carrier frequency band and/or receives the broadcast on the broadcast/multicast dedicated carrier frequency band according to the notification of the carrier frequency band use condition acquisition module. /Multicast service control information.

The present invention further provides a receiving apparatus for broadcast/multicast service control information, which includes a carrier frequency band usage acquiring module and a service control information receiving module disposed on a UE side of the user equipment;

It can be seen from the above technical solution that the broadcast/multicast service control information of the present invention is transmitted. The transmission method, the receiving method, the transmission system, and the receiving device, the network side sends broadcast/multicast control information to the UE on the broadcast/multicast dedicated carrier frequency band and/or the non-broadcast/multicast dedicated carrier frequency band; ready to receive broadcast/multicast The UE of the service receives the broadcast/multicast control information in the broadcast/multicast dedicated carrier frequency band and/or to the non-broadcast/multicast dedicated carrier frequency band according to the case in which the broadcast/multicast control information is transmitted on the carrier frequency band. In this way, the UE can correctly receive the broadcast/multicast control information in a system that allocates a dedicated carrier frequency band for broadcast/multicast. BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a wireless network structure supporting broadcast/multicast services;

2 is a schematic diagram of MCCH information scheduling;

3 is a schematic diagram of MBMS control information that a UE needs to receive;

4 is a schematic diagram of a process for a UE to receive MBMS control information according to a first preferred embodiment of the present invention;

FIG. 5 is a schematic diagram of a process for a UE to receive MBMS control information according to a second preferred embodiment of the present invention; FIG.

6 is a schematic diagram of a process for a UE to receive MBMS control information according to a third preferred embodiment of the present invention;

Figure 7 is a block diagram showing the structure of an MBMS control information transmission system in accordance with a fifth preferred embodiment of the present invention. Mode for carrying out the invention

The present invention will be further described in detail below with reference to the accompanying drawings.

In the method for transmitting broadcast/multicast service control information of the present invention, in a system for allocating a dedicated carrier frequency band for broadcast/multicast, the network side is in a broadcast/multicast dedicated carrier frequency band and/or non- Broadcast/multicast dedicated carrier frequency band to send broadcast/multicast control information to the UE; UE ready to receive broadcast/multicast service, according to which carrier frequency band the broadcast/multicast control information is transmitted, in broadcast/multicast dedicated Receive broadcast/multicast control information on the carrier frequency band and/or to the non-broadcast/multicast dedicated carrier frequency band.

Generally, in a system in which a dedicated carrier frequency band is allocated for broadcast/multicast services, the UE first knows the information of the broadcast/multicast dedicated carrier frequency band. In the present invention, the UE may record the broadcast/multicast dedicated carrier frequency band information in advance; or the network side may send the broadcast/multicast dedicated carrier frequency band information to the UE on the non-broadcast/multicast dedicated carrier frequency band, for example: the network side The broadcast/multicast dedicated carrier frequency band information may be periodically transmitted to the UE on a broadcast channel or a control channel according to a transmission period of the broadcast channel or the control channel. Then, the UE may receive the MBMS control information on the broadcast/multicast dedicated carrier frequency band according to the recorded or received broadcast/multicast dedicated carrier frequency band information.

In the present invention, the UE may have a plurality of ways to know which carrier frequency band the control information is transmitted and transmitted. For example, it can be learned in the following three ways:

1. The UE learns on which carrier frequency segment the control information is transmitted according to the situation of receiving the control channel. Specifically, if the UE is in the non-broadcast/multicast dedicated carrier frequency band, the broadcast/multicast service control information may be first received on the control channel of the non-broadcast/multicast dedicated carrier frequency band, and if not received, then broadcast/ The broadcast/multicast service control information is received on the control channel of the multicast dedicated carrier frequency band. If the UE is in the broadcast/multicast dedicated carrier frequency band, it may first receive broadcast/multicast service control information on the control channel of the broadcast/multicast dedicated carrier frequency band, and if not received, then go to the non-broadcast/multicast dedicated carrier frequency band. The broadcast/multicast service control information is received on the control channel. In this way, the UE is relatively blind, and sometimes needs to switch back and forth between the non-broadcast/multicast dedicated carrier frequency band and the broadcast/multicast dedicated carrier frequency band, which may waste the UE's system resources.

2. The network side and the UE pre-set in which carrier frequency band to send broadcast/multicast control information. The UE records the setting, for example: The broadcast/multicast control information may be sent only on the broadcast/multicast dedicated carrier frequency band, or the broadcast/multicast control information may be sent only on the non-broadcast/multicast dedicated carrier frequency band. Broadcast/multicast control information can be sent on both the broadcast/multicast dedicated carrier frequency band and the non-broadcast/multicast dedicated carrier frequency band. The UE knows which carrier frequency band the control information is transmitted according to the recorded setting, and receives the broadcast/multicast service control information on the corresponding carrier frequency band. In this mode, the UE receives a relatively fixed situation. If the network side changes the frequency and sends the broadcast/multicast service control information, the UE needs to be changed at the same time, which is not flexible enough.

Third, the network side ΌΕ Sends an indication of which broadcast frequency band to send broadcast/multicast control information. For example: The indication can be sent on the non-broadcast/multicast dedicated carrier frequency band, or can be sent on the broadcast/multicast dedicated carrier frequency band, and can also be used in the non-broadcast/multicast dedicated carrier frequency band and the broadcast/multicast dedicated carrier. This indication is sent on the frequency band. The UE learns on which carrier frequency band the control information is transmitted according to the indication, and receives the broadcast/multicast service control information on the corresponding carrier frequency band. In this way, the network side only needs to send an indication to the UE. If the network side changes the frequency and sends the broadcast/multicast service control information, the UE only needs to change according to the indication, so the implementation is flexible, and does not need to be multiple times in non-broadcast/ The multicast dedicated carrier frequency band and the broadcast/multicast dedicated carrier frequency band are switched back and forth. The system resources of the UE are reduced. In practice, this is the recommended approach.

The present invention can be applied to both multimedia broadcast/multicast services (MBMS) and non-multimedia broadcast/multicast services in the same manner.

In the following third manner, the present invention will be described in detail with reference to five preferred embodiments in the MBMS service application.

First preferred embodiment:

In this embodiment, the network side controls all MBMSs to be sent and received in the non-MBMS dedicated carrier frequency band. Specifically, the network side sends MBMS dedicated frequency information on the non-MBMS dedicated carrier frequency band, and indicates on which carrier frequency band the MBMS control information is sent and all MBMS control information. In this embodiment, the network side indicates on which carrier frequency band the HE MBMS control information is transmitted, and can also be performed on the MBMS carrier frequency band at the same time.

In this embodiment, on the broadcast channel or the control channel of the non-MBMS dedicated carrier frequency band, the network side periodically sends the MBMS dedicated carrier frequency band information to the UE and transmits the MBMS control information on which carrier frequency band according to the transmission period of the broadcast channel or the control channel. Instructions. After the UE enters or reselects the cell or enters the UTRAN from another radio access technology (RAT), after receiving the above two kinds of information, the UE records the received information.

In the embodiment, the process of receiving the MBMS control information by the UE is shown in FIG. 4. FIG. 4 is a schematic flowchart of the UE receiving the MBMS control information according to the first preferred embodiment of the present invention. The process includes the following steps:

Step 401: The UE joins the MBMS service and prepares to receive the MBMS multicast service. If it is a UE that has subscribed to the MBMS broadcast service, this step is not required.

The following three embodiments also take multicast as an example.

Step 402: The UE receives the MBMS service change and the unchanged service control message (MSI and USI) on the non-MBMS dedicated carrier frequency band.

After the UE enters or reselects the cell or enters the UTRAN from other RATs, the UE first obtains the MBMS service change and the unchanged service control message (MSI and USI).

Step 403: The UE demodulates the MSI and the USI to find that the system is providing the MBMS service that it wants to receive, and then performs step 404. If there is no MBMS service to be received, the process ends.

In this embodiment, there is an MBMS service that is intended to be received.

Step 404: Receive, in the MBMS control information, content of other control information about the MBMS service, that is, MBMS access information transmitted after MSI and USI in FIG. 3, MBMS general information, MBMS public PTM radio bearer information, MBMS current cell PTM radio bearer information, MBMS neighbor cell PTM radio bearer information. After receiving, Line 405.

Step 405: The UE transfers to the MBMS dedicated carrier frequency band according to the recorded MBMS dedicated carrier frequency information.

Step 406: The UE receives the MBMS service on the MBMS dedicated carrier frequency band according to the received MBMS control information.

Step 407: The UE receives a notification indication of whether the control information is changed in real time during the MBMS service process, and if yes, performs step 408; otherwise, proceeds to step 406.

In this embodiment, when the MBMS service control information changes, the network side sends an MBMS service control information change notification to the UE on the MBMS dedicated carrier frequency band.

Step 408: The UE returns the non-MBMS dedicated carrier frequency band to receive the MSI and demodulate. After the receiving, if the MBMS service is still continuing, the UE returns to step 405 and transfers to the MDBMS dedicated carrier frequency band to continue receiving the MBMS service.

In this embodiment, if the user directly enters the dedicated MBMS carrier frequency band after being powered on, the user first transfers to the non-MBMS dedicated carrier frequency band to receive the MBMS service control information, and after receiving the control information, receives the MBMS dedicated carrier frequency band. MBMS business.

In addition, in this embodiment, after receiving the MBMS control information, or receiving the MBMS service, the UE may select the service priority when receiving the control information of the current MBMS service, and determine the service to be received next. Which MBMS service is used to further determine whether to receive other control information for the MBMS service.

In this embodiment, if the UE receives the paging information of the non-MBMS service in the process of receiving the MBMS control information or the MBMS service data, and the UE determines that the service priority is higher than the MBMS service, the UE does not receive the paging information. The MBMS service control information or the MBMS service data is received on the non-MBMS service dedicated carrier frequency band to receive the non-MBMS service.

Second preferred embodiment:

In this embodiment, the network side uses all MBMS control information in the MBMS dedicated carrier. The frequency band is sent up and down. Specifically, the network side sends an MBMS dedicated frequency information on a non-MBMS dedicated carrier frequency band, and an indication of which MBMS control information is sent on a carrier frequency band; and all MBMS control information is sent and received in the MBMS dedicated carrier frequency band. The method of transmitting and receiving the MBMS dedicated frequency information and the indication of transmitting the MBMS control information on which carrier frequency band is the same as that of the first preferred embodiment, and will not be repeated here.

In this embodiment, the process of receiving the MBMS control information by the UE is shown in FIG. 5. FIG. 5 is a schematic flowchart of the UE receiving the MBMS control information according to the second preferred embodiment of the present invention. The process includes the following steps:

Step 501: The UE joins the MBMS service, and prepares to receive the MBMS multicast service.

Step 502: The UE transfers the MBMS dedicated carrier frequency band according to the recorded MBMS dedicated carrier frequency information, and receives the MBMS control information.

Step 503, the UE demodulates the MSI and the USI discovery system is providing the one that it wants to receive.

For the MBMS service, step 504 is performed; if there is no MBMS service to be received, the process is terminated.

In this embodiment, it is assumed that there is an MBMS service that is intended to be received.

Step 504: The UE receives other control information of the MBMS service on the MBMS dedicated carrier frequency, and after the receiving is complete, step 505 is performed.

Step 505: The UE receives the MBMS service according to the control information.

Step 506: The UE receives a notification indication of whether the control information is changed in real time during the MBMS service process, and if yes, performs step 507; otherwise, proceeds to step 505.

Step 507: The UE receives the MSI on the MBMS dedicated carrier frequency and demodulates. After the receiving is completed, if the MBMS service is still continuing, the UE returns to step 505 to continue receiving the MBMS service. In this embodiment, if the user directly enters the dedicated MBMS carrier frequency band after the power is turned on, the user directly receives the MBMS service control information in the MBMS dedicated carrier frequency band, and after receiving the control information, directly receives the MBMS service on the MBMS dedicated carrier frequency band. .

In this embodiment, if the UE receives the paging information of the non-MBMS service in the process of receiving the MBMS control information or the MBMS service data, and the UE determines that the service priority is higher than the MBMS service, the UE does not receive the paging information. The MBMS service control information or the MBMS service data is received on the non-MSMB service dedicated carrier frequency band to receive the non-MBMS service.

Third preferred embodiment:

In this embodiment, the network side sends part of the MBMS control information to and from the non-MBMS dedicated carrier frequency band, and part of the MBMS control information is sent and received in the MBMS dedicated carrier frequency band. The part of the control information sent by the network side on the MBMS dedicated carrier frequency band and the partial control information sent on the non-MBMS dedicated carrier frequency band may be completely different, so that the control information on the two carrier frequency bands is completely different; the network side is on the MBMS dedicated carrier frequency band. The transmitted control information is different and partially identical to the control information transmitted on the non-MBMS dedicated carrier frequency band, so that the two carrier frequency bands have the same control information and different control information.

Specifically, the network side sends an MBMS dedicated frequency information in a non-MBMS dedicated carrier frequency band, an MBMS control information on which carrier frequency band is transmitted, and an indication of which frequency control information is transmitted; and the part of the MBMS control information is sent and received in the MBMS dedicated carrier frequency band. Sending part of the MBMS control information in the non-MBMS dedicated carrier frequency band.

For example: In this embodiment, the network side will change and change the MBMS control information (MSI and USI) and the MBMS public PTM radio bearer information, and the MBMS is currently small. The radio bearer information such as the PTM radio bearer information and the MBMS neighbor cell PTM radio bearer information are sent and received in the MBMS dedicated carrier frequency band, and the MBMS general information and/or the changed MBMS control information are sent to the UE in the MBMS non-dedicated carrier frequency band.

Alternatively, the same MBMS MSI may be sent and received in the MBMS dedicated carrier band and the non-MBMS carrier band, and other information may be transmitted on the MBMS dedicated carrier band or the non-MBMS dedicated carrier band.

Method for transmitting MBMS dedicated frequency information on the network side, transmitting MBMS control information on which carrier frequency band, and transmitting which indication of which control information is transmitted, and the network side MBMS dedicated frequency information in the first preferred embodiment, on which carrier frequency band The method of transmitting and receiving the indication of the MBMS control information is the same, and will not be repeated here.

In this embodiment, the process of receiving the MBMS control information by the UE is shown in FIG. 6. FIG. 6 is a schematic flowchart of the UE receiving the MBMS control information according to the third preferred embodiment of the present invention. The process includes the following steps:

Step 601: The UE joins the MBMS service, and prepares to receive the MBMS multicast service.

Step 602: The UE receives MBMS general information and/or MSI on a non-MBMS dedicated carrier frequency band.

After the UE enters or reselects the cell or enters the UTRAN from another RAT, the UE may first obtain a Service Control Message (MSI) of the MBMS service change.

Step 603: The UE transfers to the MBMS dedicated carrier frequency band according to the recorded MBMS dedicated carrier frequency information.

Step 604: The UE receives the MSI, the USI, and the radio bearer information on the MBMS dedicated carrier frequency.

Step 605: The UE demodulates the MSI and the USI discovery system is providing the MBMS service that it wants to receive, and the UE receives other control information on the MBMS dedicated carrier frequency, and performs the step. Step 606; If there is no MBMS service to be received, the process ends.

Step 606: The UE receives the MBMS service according to the control information.

Step 607: The UE receives a notification indication of whether the control information is changed in real time during the MBMS service process, and if yes, performs step 608; otherwise, proceeds to step 606.

Step 608: Receive MSI on the MBMS dedicated carrier frequency and demodulate. After the receiving is completed, if the MBMS service is still continuing, the UE returns to step 606 to continue receiving the MBMS service.

In this step, the UE may also return the receiving MSI on the non-MBMS dedicated carrier frequency and demodulate. After the receiving is completed, if the MBMS service is still continuing, the UE transfers to the MBMS dedicated carrier frequency, and returns to step 606 to continue receiving the MBMS. business.

In this embodiment, if the UE directly enters the dedicated MBMS carrier frequency band after being powered on, the UE may first receive part of the MBMS service control information in the MBMS dedicated carrier frequency band, and then return the MBMS service control information of the non-MBMS dedicated carrier frequency band receiving part. After receiving the complete control information, the MBMS service is received on the MBMS dedicated carrier frequency band. Certainly, the UE may also first return to the non-MBMS dedicated carrier frequency band to receive part of the MBMS service control information, and then receive the MBMS service control information in the MBMS dedicated carrier frequency band, and receive the MBMS service directly on the MBMS dedicated carrier frequency band after receiving the complete control information. .

Further, in this embodiment, if the MBMS control information or the number of MBMS services are received According to the process, the UE receives the paging information of the non-MBMS service, and the UE determines that the service priority is higher than the MBMS service, the UE does not receive the MBMS service control information or the MBMS service data, and the non-MSMB service dedicated carrier frequency band is used. Receiving the non-MBMS service.

In this embodiment, in order to reduce the switching between the non-MBMS dedicated carrier frequency and the MBMS dedicated carrier frequency, the network side may simultaneously transmit the changed MBMS control information on the MBMS dedicated carrier frequency, and the UE does not receive the MBMS service during the process. It is necessary to receive the changed MBMS control information on the non-MBMS dedicated carrier frequency.

In practical applications, according to the system situation, which control information can be sent and received in the non-MBMS dedicated carrier frequency band, and which control information is sent and received in the MBMS dedicated carrier frequency band. For example, you can also transfer MBMS control information in the following ways:

The network side sends the changed and non-changing MBMS control information and the radio bearer information to and from the non-MBMS dedicated carrier frequency band, and sends the MBMS general information and/or the changed MBMS control information to the UE in the MBMS dedicated carrier frequency band.

The UE first transfers to the MBMS dedicated carrier frequency band, and the MBMS general information and/or the changed MBMS control information on the MBMS dedicated carrier frequency band; and then returns to the non-MBMS dedicated carrier frequency band to receive the changed and non-changing MBMS control information and the radio bearer information. After the control information is received, it is transferred to the MBMS dedicated carrier frequency band to receive the MBMS service.

Fourth preferred embodiment:

In this embodiment, the network side sends the MBMS dedicated frequency information in the non-MBMS dedicated carrier frequency band, and the MBMS control information is sent on the carrier frequency band. The sending and receiving methods are the same as the first preferred embodiment, and are not repeated here.

In order for the UE to obtain MBMS service control information on the current carrier frequency as much as possible, the number of times of carrier frequency switching is reduced, and the complexity is reduced. The network side sends all MBMS control information on the non-MBMS dedicated carrier frequency band and the MBMS dedicated carrier frequency band.

In this embodiment, the UE enters or reselects the cell or enters from another RAT. After UTRAN, the carrier frequency information of the bearer MBMS service is obtained from the non-MBMS dedicated carrier frequency.

If the UE joins the MBMS service and is ready to receive the service, the UE may first receive the control message (MSI and USI) of the MBMS service on the non-MBMS carrier frequency; if the MBMS control information is not provided on the non-MBMS carrier frequency, Or the UE is ready to receive the MBMS service, and the UE may also transfer the MBMS dedicated carrier frequency to receive the MBMS control information.

Then, the UE demodulates the MSI and the USI, and finds that the system is providing the MBMS service that it wants to receive, and then continues to receive other control information about the MBMS service in the MBMS dedicated carrier frequency MBMS control information. If MBMS control information is not received on the MBMS dedicated carrier frequency, the UE may also return to the non-MBMS dedicated carrier frequency to receive the MBMS control information.

After receiving the control information, ΌΈ can receive the MBMS service on the MBMS dedicated frequency according to the content provided by the MBMS control information. If the UE receives other control information of the MBMS service on the non-MBMS carrier frequency, it needs to transfer to the MBMS dedicated carrier frequency to receive the MBMS service.

If the user is receiving the information of the MBMS service, the network side indicates that the MBMS service of the UE has changed when the service changes. At this time, the UE may first receive the MBMS changed control information on the MBMS dedicated carrier frequency. If the UE does not receive the MSI on the MBMS dedicated carrier frequency, it can return to the non-MBMS dedicated carrier frequency to receive the MBMS changed control information.

After receiving the MBMS service change information, if the UE is still providing, the UE continues to receive the MBMS service on the MBMS dedicated carrier frequency.

In this embodiment, after receiving the MBMS control information, or receiving the MBMS service, the UE may select the service priority when receiving the control information of the current MBMS service, and determine which service to receive next. MBMS business for further Determine whether to receive other control information of the MBMS service.

Fifth preferred embodiment:

Referring to FIG. 7, FIG. 7 is a schematic structural diagram of an MBMS control information transmission system according to a fourth preferred embodiment of the present invention. The system includes: a carrier frequency band allocation module 701, a service control information generating module 703, a service control information sending module 704, and a frequency band indicating information sending module 702, which are disposed on the network side, and a carrier frequency band usage obtaining module 707 disposed on the user equipment UE side. The service control information receiving module 708, the frequency band indication information receiving module 705, and the frequency band usage storage module 706.

The carrier frequency band allocation module 701 performs frequency allocation and notifies the service control information sending module 704 of the carrier frequency band in which the broadcast/multicast service control information is transmitted. The case where the broadcast/multicast service control information is transmitted on the carrier frequency band is also transmitted to the UE side through the frequency band indication information transmitting module 702.

The service control information generating module 703 is configured to send the broadcast/multicast service control information to the service control information sending module 704 according to the broadcast/multicast service.

The service control information sending module 704 sends the broadcast/group information on the non-broadcast/multicast dedicated carrier frequency band according to the notification of the carrier frequency band allocation module 701, and the broadcast/multicast service control information received from the service control information generating module 703. Broadcast service control information and/or broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band.

The carrier frequency band usage storage module 706 on the UE side stores a situation in which carrier frequency band the broadcast/multicast service control information is transmitted, and is sent to the carrier frequency band usage status to obtain a module 707. The carrier frequency band usage obtaining module 707 obtains a situation in which carrier frequency band the broadcast/multicast service control information is transmitted, and notifies the service control information receiving module 708. In this embodiment, the carrier frequency band usage obtaining module 707 may further notify the carrier frequency band switching module 709 of the transmission frequency of the broadcast/multicast service control information.

The carrier band usage acquisition module 707 in this embodiment can obtain the information in two ways: the first is obtained from the carrier band usage storage module 706, and the second through band indication information receiving module 705 is obtained from the network side.

The service control information receiving module 708 receives the broadcast/multicast service control information on the non-broadcast/multicast dedicated carrier frequency band and/or receives on the broadcast/multicast dedicated carrier frequency band according to the notification of the carrier frequency band use condition acquisition module. The broadcast/multicast service control information is further sent to the carrier band switching module 709 for further receiving the current service control information.

The carrier frequency band switching module 709 notifies the carrier frequency usage acquisition module and the service control information receiving module receives the service control information, and the control service control information receiving module 708 performs the non-broadcast/multicast dedicated carrier frequency band and the broadcast/group. Switching on the dedicated carrier frequency band.

For example: On the network side, the changed and non-changing broadcast/multicast service control information and radio bearer information are sent and received in the broadcast/multicast dedicated carrier frequency band, and other broadcast/multicast service control information is in the non-broadcast/multicast dedicated carrier. The frequency band is sent up and down. It is assumed that the current control service control information receiving module 708 receives the changed and non-changing broadcast/multicast service control information and the radio bearer information on the broadcast/multicast dedicated carrier frequency band, and notifies the carrier frequency band switching module 709, then the carrier frequency band. The switching module 709 controls the service control information receiving module 708 to switch to the non-broadcast/multicast dedicated carrier frequency band to receive other broadcast/multicast service control information.

It can be seen from the above five embodiments that the UE can allocate a dedicated carrier frequency band for the broadcast/multicast service by applying the wide-ridge/multicast service control information transmission method of the present invention. The broadcast/multicast service control information is correctly received.

Claims

Claim

A method for transmitting broadcast/multicast service control information, the method being applicable to a system for allocating a dedicated carrier frequency band for a broadcast/multicast service, characterized in that the method comprises the following steps

2. The method according to claim 1, wherein: in the step B, when the ΌΈ is in a non-broadcast/multicast dedicated carrier frequency band, the broadcast is first received on a control channel of a non-broadcast/multicast dedicated carrier frequency band/ The multicast service control information, if not received, receives the broadcast/multicast service control information on the control channel of the broadcast/multicast dedicated carrier frequency band;

3. The method according to claim 1, wherein: in the step A, the network side sends all broadcast/multicast service control information to the UE in a non-broadcast/multicast dedicated carrier frequency band;

In the step B, the UE receives the broadband/multicast service control information from the non-broadcast/multicast dedicated carrier frequency band; after receiving the broadcast/multicast service control information, the UE uses the control information to broadcast/multicast exclusively. Receiving broadcast/multicast services on the carrier frequency band;

In the process of receiving the broadcast/multicast service, the UE returns the broadcast/multicast service control information on the non-broadcast/multicast dedicated carrier frequency band.

4. The method of claim 3, wherein: transmitting a broadcast/multicast service During the process, the network side sends a broadcast/multicast service control information change notification to the UE on the broadcast/multicast dedicated carrier frequency band when the broadcast/multicast service control information changes;

5. The method according to claim 3, wherein: in the step B, if the UE directly enters the broadcast/multicast dedicated carrier frequency band after the UE is powered on, the UE is ready to receive the broadcast/multicast service. Receive broadcast/multicast service control information on the non-broadcast/multicast dedicated carrier frequency band.

The method according to claim 1, wherein: in the step A, the network side sends all broadcast/multicast service control information to the UE in a broadcast/multicast dedicated carrier frequency band;

The method according to claim 6, wherein: in the process of transmitting the broadcast/multicast service, the network side sends the broadcast/multicast service control information to the UE on the broadcast/multicast dedicated carrier frequency band when the broadcast/multicast service control information changes. Broadcast/multicast service control information change notification;

After receiving the broadcast/multicast service control information change notification, the UE receives the changed broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band.

8. The method according to claim 6, wherein: in the step B, if the UE directly enters the broadcast/multicast dedicated carrier frequency band after the UE is powered on, the UE is directly in preparation for receiving the broadcast/multicast service. Receive broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band.

9. The method according to claim 1, wherein: in the step A, the network side sends part of the broadcast/multicast service control information in a broadcast/multicast dedicated carrier frequency band, and the part is in non-broadcast/multicast. The dedicated carrier frequency band is sent to the UE;

10. The method according to claim 9, wherein: part of the control information sent by the network side on the broadcast/multicast dedicated carrier frequency band is completely different from the partial control information sent on the non-broadcast/multicast dedicated carrier frequency band, The control information on the two carrier frequency bands is completely different; or the control information sent by the network side on the broadcast/multicast dedicated carrier frequency band is different and partially the same as the control information sent on the non-broadcast/multicast dedicated carrier frequency band. Make the two carrier frequency bands have the same part and different parts.

11. The method according to claim 10, wherein: in the step A, the network side changes the broadcast and multicast service control information and the radio bearer information in the broadcast/multicast dedicated carrier frequency band. Sending general information of the broadcast/multicast service to the UE in the non-broadcast/multicast dedicated carrier frequency band, or transmitting the broadcast/multicast service general information and the changed broadcast/multicast service control information in non-broadcast/multicast dedicated The carrier frequency band is sent to and from the UE;

In the step B, the UE first transfers to the non-broadcast/multicast dedicated carrier frequency band to receive the broadcast/multicast service general information and/or the changed broadcast/multicast service control information, and then returns to the broadcast/multicast dedicated carrier frequency band. Receive varying and non-changing broadcasts on the broadcast/multicast dedicated carrier frequency band / multicast service control information and radio bearer information;

After the control information is received, the broadcast/multicast service is received on the broadcast/multicast dedicated carrier frequency band.

12. The method according to claim 10, wherein: in the step A, the network side changes and non-changing broadcast/multicast service control information and radio bearer information in a non-wide/multicast dedicated carrier. The frequency band is sent and received; the general information of the broadcast/multicast service is sent to the UE in the broadcast/multicast dedicated carrier frequency band, or the broadcast/multicast service general information and the changed broadcast/multicast service control information are broadcast/multicast-specific. The carrier frequency band is sent to and from the UE;

The method according to claim 11, 12, wherein: in the step B, if the UE directly enters the broadcast/multicast dedicated carrier frequency band after the UE is powered on, the UE is ready to receive the broadcast/multicast service. First, receive broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band.

The method according to claim 11 or 12, wherein: in the process of transmitting the broadcast/multicast service, the network side moves on the broadcast/multicast dedicated carrier frequency band when the broadcast/multicast service control information changes. The UE sends a broadcast/multicast service control information change notification;

15. The method according to claim 1, wherein: in the step A, the network side transmits all broadcast/multicast service control information on a non-broadcast/multicast dedicated carrier frequency band and a non-broadcast/multicast dedicated carrier. The frequency band is simultaneously sent to the UE; In the step B, the UE receives the broadcast/multicast service control information on the non-broadcast/multicast dedicated carrier frequency band according to the current frequency, and/or receives the broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band. .

16. The method according to claim 15, wherein: in the step B, if the ΌΕ is currently in the non-broadcast/multicast dedicated carrier frequency band, the broadcast/group is received on the non-broadcast/multicast dedicated carrier frequency band. Broadcast service control information;

17. The method according to claim 15, wherein: in the process of transmitting the broadcast/multicast service, the network side changes the broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band and/or The broadcast/multicast service control information change notification is sent to the UE on the non-broadcast/multicast dedicated carrier frequency band;

The method according to claim 1, 3, 6, 9, or 15, wherein: the UE pre-records the broadcast/multicast service dedicated carrier frequency band information, or in the step A, the network side further performs non-broadcast/ Sending broadcast/multicast dedicated carrier frequency band information to the UE on the multicast dedicated carrier frequency band;

In the step B, the UE receives the broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band according to the recorded or received broadcast/multicast dedicated carrier frequency band information.

The method according to claim 18, wherein the method for the network side to send the broadcast/multicast dedicated carrier frequency band information to the UE is:

The network side transmits on the broadcast channel or the control channel according to the broadcast channel or the control channel. Periodically, the broadcast/multicast dedicated carrier frequency band information is periodically sent to the UE.

The method according to claim 1, 3, 6, 9, or 15, wherein: in the step A, the network side further transmits the carrier frequency band to the UE on the non-broadcast/multicast dedicated carrier frequency band. An indication of transmitting broadcast/multicast service control information;

Or the network side and the UE pre-set to send broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band and/or the non-broadcast/communication dedicated carrier frequency band, and the UE records the setting;

In the step B, the UE receives the broadcast/multicast service control information on the corresponding carrier frequency band according to the recorded setting.

The method according to claim 20, wherein the method for the network side to send the broadcast/multicast service control information indication on the carrier frequency band to the UE is:

22. The method according to claim 1, 3, 6, 9, or 15, wherein: the UE receives the non-current broadcast/multicast after receiving the control information or receiving the broadcast/multicast service. When the service control information is selected, the service priority is selected, and the broadcast/multicast service of the service to be received next is determined, and the subsequent control information of the broadcast/multicast service is further determined.

23. The method of claim 1, 3, 6, 9, or 15, wherein: if receiving broadcast/multicast service control information or broadcast/multicast service data, the UE receives the non-broadcast/group Broadcasting the paging information of the service, and the UE determines that the priority of the service is higher than the broadcast/multicast service, the UE stops receiving the broadcast/multicast service control information or the broadcast/multicast service data to the non-broadcast/multicast dedicated carrier. The non-broadcast/multicast service is received on the frequency band.

The method according to claim 1, 3, 6, 9, or 15, wherein the UE is: a UE that joins a multicast service; or a UE that has subscribed to a broadcast service.

25. A user equipment ΌΕ method for receiving broadcast/multicast service control information, the method being applicable to a system for allocating a dedicated carrier frequency band for a broadcast/multicast service, characterized in that the method comprises the following steps:

a. The UE learns that the broadcast/multicast service control information is transmitted on the same carrier frequency band; b. the UE transmits the broadcast/multicast service control information on the same carrier frequency band, on the non-broadcast/multicast dedicated carrier frequency band. Receiving broadcast/multicast service control information and/or receiving broadcast/multicast service control information on a broadcast/multicast dedicated carrier frequency band.

The method according to claim 25, wherein: step a: the method for the UE to learn on which carrier frequency band the broadcast/multicast service control information is transmitted is:

The network side sends an indication of the broadcast/multicast service control information on the carrier frequency band to the UE on the non-broadcast/multicast dedicated carrier frequency band; or the network side and the UE are preset in the broadcast/multicast dedicated carrier frequency band and/or Or transmitting broadcast/multicast service control information on a non-broadcast/multicast dedicated carrier frequency band, and the UE records the setting;

In the step b, the UE receives the broadcast/multicast service control information on the corresponding carrier frequency band according to the received indication or according to the recorded setting.

The method according to claim 25 or 26, wherein: in the step a, if the network side knows that all broadcast bloodcast service control information is sent and received in a non-broadcast/multicast dedicated carrier frequency band;

In the step b, the UE receives the broadcast/multicast service control information from the non-broadcast/multicast dedicated carrier frequency band; after receiving the broadcast/multicast service control information, the UE sends the broadcast/multicast dedicated carrier according to the control information. Receiving broadcast/multicast services on the frequency band;

The method according to claim 27, wherein: in the step b, if the UE directly enters the broadcast/multicast dedicated carrier frequency band after the UE is powered on, the UE is ready to receive the broadcast/multicast service. Receive broadcast/multicast service control information on the non-broadcast/multicast dedicated carrier frequency band.

The method according to claim 25 or 26, wherein: in the step a, if the UE learns that the network side sends all broadcast/multicast service control information in the broadcast/multicast dedicated carrier frequency band;

The method according to claim 29, wherein: in the step b, if the UE directly enters the broadcast/multicast dedicated carrier frequency band after the UE is powered on, the UE is directly in preparation for receiving the broadcast/multicast service. Receive broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band.

The method according to claim 25 or 26, wherein: in the step a, if the UE learns that the network side transmits part of the broadcast/multicast service control information in the broadcast/multicast dedicated carrier frequency band, part of Non-broadcast/multicast dedicated carrier frequency bands are sent and received;

In the step b, the UE first receives part of the control information on the non-broadcast/multicast dedicated carrier frequency band, and then transfers to the broadcast/multicast dedicated carrier frequency band to receive part of the control information; or first transfers to the broadcast/multicast dedicated The part of the control information is received on the carrier frequency band, and then returned to the non-broadcast/multicast dedicated carrier frequency band to receive part of the control information.

32. The method according to claim 31, wherein: in the step a, if the UE learns that the network side will change and non-changing broadcast/multicast service control information and wireless The information is sent and received in the broadcast/multicast dedicated carrier frequency band; the general information of the broadcast/multicast service is sent and received in the non-broadcast/multicast dedicated carrier frequency band, or the broadcast/multicast service general information and the changed broadcast/multicast service are transmitted. Control information is sent and received in the non-broadcast/multicast dedicated carrier frequency band;

In the step b, the UE first transfers to the non-broadcast/multicast dedicated carrier frequency band to receive the broadcast/multicast service general information and/or the changed broadcast/multicast service control information and then returns to the broadcast/multicast dedicated carrier frequency band. Receiving changed and non-changing broadcast/multicast service control information and radio bearer information on a broadcast/multicast dedicated carrier frequency band;

33. The method according to claim 31, wherein: in the step a, if the UE learns that the network side changes and non-changing broadcast/multicast service control information and radio bearer information in a non-broadcast/ The multicast dedicated carrier frequency band is sent and received; the general information of the broadcast/multicast service is sent and received in the broadcast/multicast dedicated carrier frequency band, or the broadcast/multicast service general information and the changed broadcast/multicast service control information are broadcast/grouped. Broadcast the dedicated carrier frequency band up and down;

The method according to claim 25 or 26, wherein: in the step a, if the UE learns that the network side has all broadcast/multicast service control information on the non-broadcast/multicast dedicated carrier frequency band and non-broadcast /Multicast dedicated carrier frequency band is delivered at the same time;

In the step b, the UE receives the broadcast/multicast service control information on the non-broadcast/multicast dedicated carrier frequency band according to the current frequency, and/or receives the wide/multicast service control on the broadcast/multicast dedicated carrier frequency band. information.

35. The method of claim 34, wherein: in step b, if The UE currently receives the broadcast/multicast service control information on the non-broadcast/multicast dedicated carrier frequency band in the non-broadcast/multicast dedicated carrier frequency band;

36. The method according to claim 25, wherein: in the step b, when the UE is in a non-broadcast/multicast dedicated carrier frequency band, first receiving a broadcast on a control channel of a non-broadcast/multicast dedicated carrier frequency band/ The multicast service control information, if not received, receives the broadcast/multicast service control information on the control channel of the broadcast/multicast dedicated carrier frequency band;

37. A transmission system for broadcast/multicast service control information, comprising: a carrier frequency band allocation module, a service control information generation module, and a service control information sending module, which are disposed on a network side; and a carrier wave disposed on a user equipment UE side a band usage acquisition module and a service control information receiving module;

The carrier frequency band usage obtaining module acquires broadcast/multicast service control information The case of transmitting on the carrier frequency band and notifying the service control information receiving module; the service control information receiving module receiving the broadcast/multicast service on the non-broadcast/multicast dedicated carrier frequency band according to the notification of the carrier frequency band use condition acquisition module Control information and/or receive broadcast/multicast service control information on the broadcast/multicast dedicated carrier frequency band.

38. The transmission system according to claim 37, wherein: the system further comprises a carrier band switching module disposed on the UE side;

The carrier frequency band usage acquiring module further notifies the carrier frequency band switching module whether the broadcast/multicast service control information is transmitted on the carrier frequency band;

The service control information receiving module further sends the current service control information receiving condition to the carrier frequency band switching module;

The carrier frequency band switching module obtains the notification of the module according to the carrier frequency band usage condition, and the service control information receiving module receives the service control information, and the control service control information receiving module uses the non-broadcast/multicast dedicated carrier frequency band and the broadcast/multicast dedicated Switching on the carrier frequency band.

The transmission system according to claim 37, wherein: the system further comprises: a frequency band indication information sending module disposed on the network side; and a frequency band indication information receiving module disposed on the UE side;

And the carrier frequency band allocation module further transmits the broadcast/multicast service control information on the carrier frequency band, and sends the information to the UE side through the frequency band indication information sending module;

The frequency band indication information receiving module on the UE side sends the broadcast frequency/multicast service control information on the carrier frequency band to the carrier frequency band usage acquisition module.

40. The transmission system according to claim 37, wherein: the UE side further comprises a carrier frequency band usage storage module, which stores, on which carrier frequency band the broadcast/multicast service control information is transmitted, and sends the The carrier frequency band usage acquisition module.

41. A device for receiving broadcast/multicast service control information, comprising: a carrier frequency band usage acquiring module and a service control information receiving, which are set on a user equipment UE side Module

42. The receiving device of claim 41, further comprising: a carrier band switching module;

The receiving device according to claim 41, wherein the device further comprises a frequency band indication information receiving module disposed on the UE side;

The segment indication information receiving module on the UE side sends the broadcast band/multicast service control information on the carrier frequency band to the carrier frequency band usage acquisition module.

The receiving device according to claim 41, wherein: the receiving device further comprises a carrier frequency band usage storage module, which stores, on which carrier frequency band the broadcast/multicast service control information is transmitted, and sends the information to the The carrier frequency band usage acquisition module.