WO2011038656A1

WO2011038656A1 - Method and network side equipment for transmitting multimedia broadcast multicast service (mbms) paging indication information

Info

Publication number: WO2011038656A1
Application number: PCT/CN2010/077228
Authority: WO
Inventors: 毛磊; 马子江
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-09-29
Filing date: 2010-09-21
Publication date: 2011-04-07
Also published as: CN102036175B; CN102036175A

Abstract

The present invention discloses a method and network side equipment for transmitting multimedia broadcast multicast service (MBMS) paging indication information, wherein the method includes the following steps: the network side equipment sets the transmission location of each piece of MBMS control channel (MCCH) modification indication information on a paging indication channel and that of paging indication information of an MBMS service group on a paging indication channel, and sends, according to the set transmission locations, the corresponding MCCH modification indication information and paging indication information of the MBMS service group on the paging indication channel. The technical solution of the present invention makes full use of the space of the paging indication channel, and indicates more clearly the paging situation of different service groups of a user equipment (UE) and the MCCH change information.

Description

Method for transmitting MBMS paging indication information and network side device

Technical field

The present invention relates to a method and system for transmitting paging indication information in a paging indicator channel of a Multimedia Broadcast Multicast Service (MBMS).

Background technique

With the rapid development of the Internet and the popularity of large-screen multi-function mobile terminals, a large number of mobile data multimedia services and various high-bandwidth multimedia services, such as video conferencing, television broadcasting, video on demand, advertising, online education, interactive games, etc., have emerged. This aspect meets the needs of mobile users for multiple services, and also brings new business growth points for mobile operators. These mobile data multimedia services require multiple users to receive the same data at the same time, and have the characteristics of large data volume, long duration, and delay sensitivity compared with general data services.

In order to effectively utilize mobile network resources, the 3rd Generation Partnership Project (3GPP) proposes MBMS, which is a technology for transmitting data from one data source to multiple target mobile terminals, realizing the network ( The sharing of resources including the core network and the access network improves the utilization of network resources (especially air interface resources). MBMS defined by 3GPP can not only realize plain text low-rate message class multicast and broadcast, but also realize high-speed multimedia service broadcast and multicast, providing a variety of rich video, audio and multimedia services, which undoubtedly conforms to future mobile The trend of data development provides a better business prospect for the development of 3G.

In the Long Term Evolution (LTE) system, the user equipment (UE, or terminal) is notified that a certain MBMS service is about to change (such as to be sent, configuration information is to be updated, and service transmission is to be changed, etc.) Step 1, step 1 first sets the paging indicator bit corresponding to the service to "true" on the MBMS service paging indicator channel; after receiving the indication bit set to "true", the UE further reads the MCCH (MBMS Control) Channel, MBMS point-to-multipoint control channel), the MCCH will send specific service configuration parameters, such as service ID, RLC (Radio Link Control), MAC (Media Access Control), Physical layer configuration parameters, etc.; the UE determines whether to receive according to the service ID, and configures according to the configuration parameters. The MBMS service transmission area may overlap. The eMBMS (Evolved MBMS) system may have multiple MCCHs. Each MCCH corresponds to a different MBMS service transmission area, and only the MBMS service corresponding to the MBMS service transmission area is carried. Control information.

If the paging indicator channel only triggers the UE to receive the MCCH, the UE must receive multiple

The MCCH can get the exact business information. That is to say, the UE may be triggered to receive the MCCH because of a change in the service that is not of interest, which undoubtedly increases the burden on the UE.

Summary of the invention

The technical problem to be solved by the present invention is to provide a method for transmitting MBMS paging indication information and a network side device, which makes it faster and easier for a terminal to obtain a paging of an MBMS service.

To solve the above technical problem, the present invention discloses a method for transmitting MBMS paging indication information of a multimedia broadcast multicast service, including:

The network side device sets each MBMS point-to-multipoint control channel, the sending position of the MCCH modification indication information on the paging indicator channel, and the sending position of the paging indication information of the MBMS service group on the paging indicator channel;

The network side device sends the corresponding MCCH tampering indication information and the paging indication information of the MBMS service group on the paging indicator channel according to the set sending location.

In the above method, the sending, by the network side device, the sending location of each MCCH modification indication information on the paging indicator channel includes:

The network side device allocates a corresponding number of paging bits as the MCCH modification indication information, respectively, according to the number of MCCHs configured in the cell and the unit length of each MCCH modification indication information, where the paging bit is set. The MCCH modification indication information indicates whether each MCCH will change, respectively.

The sending, by the network side device, the paging indication information of each MBMS service group on the paging indication channel includes:

Determining, by the network side device, the remaining resources can be carried according to the number of resources of the paging indication channel, the number of resources occupied by the MCCH modification indication information, and the unit length of the paging indication information. The number of the paging indication information is used to group the MBMS services in the cell according to the quantity, and respectively map the paging indication information of the different service groups to the sending location corresponding to the paging indicator channel.

The method further includes: determining, by the network side device, the quantity of resources of the paging indication channel according to the following paging resources: a downlink control information format corresponding to the MBMS paging indicator channel, an MBMS paging period, a subframe offset, and an MBMS Wireless network temporary identification.

The network side device performs the grouping of the MBMS services in the cell in any of the following manners:

(1) PI = MBMS service ID mod N;

( 2 ) PI = MBMS session ID mod N;

(3) PI = (MBMS service ID + MBMS session ID) mod N;

The PI is an MBMS service group identifier, and each PI corresponds to each paging indicator, and the MBMS service ID is a service identifier of an MBMS service in the MBMS service transmission area corresponding to the MCCH, and N is a paging that the remaining resources can carry. The number of the indication information, the MBMS session ID is the session identifier of an MBMS service in the MBMS service transmission area corresponding to the MCCH.

Alternatively, the network side device groups the MBMS services in the cell by using any one of the following methods:

Grouped by service type, grouped according to the frequency of service updates, and grouped according to the number of users participating in the service.

The method further includes: receiving, by the user equipment, the paging indication information of the MBMS service group where the MBMS service of the user is interested in the corresponding location of the paging indicator channel according to the sending location set by the network side device, and obtaining the paging information according to the MCCH modification indication information. The MCCH corresponding to the MBMS service group.

The network side device is an evolved node B or a radio network controller.

The invention also discloses a network side device for transmitting MBMS paging indication information, comprising a configuration module and a sending module, wherein:

The configuration module is configured to: set a sending location of each MCCH modification indication information on the paging indicator channel and a sending location of the paging indication information of the MBMS service group on the paging indicator channel; The sending module is configured to: send the corresponding MCCH modification indication information and the paging indication information of the MBMS service group on the paging indication channel according to the sending location set by the configuration module.

In the above network side device, the configuration module is configured to set a sending position of each MCCH modification indication information on the paging indicator channel in the following manner:

Assigning, according to the number of MCCHs configured in the cell and the unit length of each MCCH modification indication information, a corresponding number of paging bits are respectively set as the MCCH modification indication information in the set position of the paging indicator channel, where each MCCH modification indication The information indicates whether each MCCH will change.

The configuration module is configured to set a paging location of the paging indication information of each MBMS service group on the paging indicator channel in the following manner:

Determining the number of paging indication information that the remaining resources can carry according to the number of resources of the paging indication channel, the number of resources occupied by the MCCH modification indication information, and the unit length of the paging indication information, and determining the MBMS service in the cell according to the quantity. The grouping is performed, and the paging indication information of the different service groups is respectively mapped to the sending location corresponding to the paging indication channel.

The configuration module is further configured to determine the number of resources of the paging indicator channel according to the following paging resources: a downlink control information format corresponding to the MBMS paging indicator channel, an MBMS paging period, a subframe offset, and an MBMS wireless network temporary identifier.

The configuration module is configured to group the MBMS services in the cell in any of the following manners:

(1) PI = MBMS service ID mod N;

( 2 ) PI = MBMS session ID mod N;

(3) PI = (MBMS service ID + MBMS session ID) mod N;

Alternatively, the configuration module is configured to group the MBMS services in the cell by using any one of the following methods: Grouped by service type, grouped according to the frequency of service updates, and grouped according to the number of users participating in the service.

The network side device is an evolved node B or a radio network controller.

The technical solution of the present invention fully utilizes the space of the paging indication channel, and more clearly indicates the paging situation of different service groups of the UE and the change information of the MCCH. BRIEF abstract

1 is a flowchart of sending MBMS paging indication information by a network side device according to the present invention; FIG. 2 is a flowchart of receiving, by the UE, MBMS paging indication information according to the present invention;

3 is a schematic diagram of a correspondence between MBM services and paging indicators in Embodiment 1;

4 is a schematic diagram of the correspondence between MBM services and paging indicators in Embodiment 2.

Preferred embodiment of the invention

The main idea of the present invention is that the network side device can divide the paging resource on the paging indicator channel into two parts, and the first part carries the MCCH modification indication information, that is, which MCCH is to be changed, and of course, there is only one MCCH in the system. The MCCH modification indication information may not be configured; the second part carries the paging indication information of the MBMS service group;

Specifically, the network side device sets an MCCH modification indication corresponding to each MCCH channel and a transmission location on the paging indication channel; and simultaneously sets a transmission location of the paging indication information of each MBMS service group on the paging indication channel; The paging indication information of the corresponding MBMS service group is sent on the paging indicator channel according to the set transmission location, where the network side device refers to the number of resources of the paging indication channel, the number of MCCH channels, and the unit of paging indication information. Length, determining the number of paging indications, grouping the MBMS services, each MBMS service group corresponding to a paging indication location, where the paging indication location is the paging indication information of the MBMS service group on the paging indicator channel Send location. The technical solution of the present invention will be further described in detail below with reference to specific embodiments and the accompanying drawings.

A transmission system for MBMS paging indication information, including a network side device and a user equipment

(UE), wherein the network side device further includes a configuration module and a sending module. The functions of each part are described as follows:

A network side device, such as an eNB (Evolved Node B) or an RNC (Radio Network Controller), is mainly used to set a location of each MCCH modification indication information and a paging indication information of an MBMS service group on a paging indicator channel. Sending corresponding MCCH modification indication information and paging indication information of the MBMS service group on the paging indication channel according to the set transmission location;

Specifically, the configuration module sets the sending position of each MCCH modification indication information and the paging indication information of the MBMS service group on the paging indicator channel, where the configuration module is configured according to the number of MCCHs configured in the cell, and each MCCH modification indication. a unit length of the information, where a corresponding number of paging bits are respectively allocated as the MCCH modification indication information, where each MCCH modification indication information indicates whether each MCCH will change; The number of resources of the channel, the number of resources occupied by the MCCH modification indication information, and the unit length of the paging indication information, determining the number of paging indication information that the remaining resources can carry, and grouping the services in the cell according to the quantity, respectively Paging indication information of different service groups is mapped to a sending location corresponding to the paging indicator channel;

The configuration module may group the services in the cell according to the number of paging indication information that the remaining resources can carry, and may use any of the following methods:

(1) PI = MBMS service ID mod N;

( 2 ) PI = MBMS session ID mod N;

(3) PI = (MBMS service ID + MBMS session ID) mod N;

The PI is an MBMS service group identifier, and each PI corresponds to each paging indicator, and the MBMS service ID is a service identifier of an MBMS service in the MBMS service transmission area corresponding to the MCCH, and N is a paging that the remaining resources can carry. The number of the indication information, the MBMS session ID is the session identifier of an MBMS service in the MBMS service transmission area corresponding to the MCCH. Of course, the configuration module may also group the MBMS services according to the service type, the frequency of service update, the number of users participating in the service, or combined with several kinds of information. a sending module, configured to send, according to a sending location set by the configuration module, on a paging indicator channel

The MCCH modifies the indication information and the paging indication information of the MBMS service group.

The UE is configured to receive, according to the sending location set by the network side device, the paging indication information of the MBMS service group where the MBMS service of the user is interested in the corresponding location of the paging indicator channel, and obtain the MBMS service according to the MCCH modification indication information. Group corresponding MCCH

The following describes the process of transmitting the MBMS paging indication information by the system, and the process may be divided into a part in which the network side device sends the MBMS paging indication information and a part in which the UE receives the MBMS paging indication information, where the network side device sends the MBMS paging indication. The process of information, as shown in Figure 1, includes the following steps:

Step 101: The network side device determines, according to the configured paging resource, the number of information bits that can be carried on the paging indicator channel.

The paging resource includes: a DCI (Downlink Control Information) format corresponding to the MBMS paging indicator channel, an MBMS paging cycle and a subframe offset, and an M-RNTI (MBMS-Radio Network Temporary Identifier, MBMS wireless network) a temporary identifier), wherein the M-RNTI corresponds to the above-mentioned group of DCI formats, MBMS paging periods, and subframe positions;

In LTE, the first to four Orthogonal Frequency Division Multiplexing (OFDM) symbols of one subframe are the control i or the subframe. Which OFDM symbols are controlled by i or specifically, are determined by the system network side and notified to the UE. The unit that carries control information in the subframe control domain is a Control Channel Element (CCE). MBMS Paging The DCI format refers to the representation of the PDCCH (Physical Downlink Control Channel) carrying the paging indication information at the physical layer, including how many CCEs and CCEs are located in the subframe. The DCI format of the MBMS paging can be set in advance or configurable. Once configured, the information bits that the DCI can carry are fixed.

The MBMS paging period and the subframe position are used to notify the UE how long the MBMS paging is sent once, and the specific subframe number that is sent. The configuration may be that the paging period and the offset manner determine the paging location. The radio frame, in turn, indicates a specific subframe, or the MBMS paging indicator channel is carried in the first subframe by default. For example, the period is 100 radio frames, and the offset is 2 wireless. Frame, then the 102nd radio frame is where the page is placed. Further, multiple subframes may be configured to carry the MBMS paging indication information in one MBMS paging cycle. This method is mainly for co-sending with normal service paging, and the UE in the Idle state receives the paging of the MBMS service while receiving the normal service paging. The content of MBMS pages carried in multiple subframes here is the same.

The M-RNTI is an identifier for assisting the UE to receive the MBMS paging indication information in the control domain of the subframe. When the network side of the MBMS system encapsulates the MBMS paging indication information, the M-RNTI is implicitly included in the CRC (Cyclic Redundancy). Check) Check the code (specifically refer to the LTE protocols 36.212 and 36.211 protocols). Further, the system may allocate multiple M-RNTIs for MBMS paging, and combine with the foregoing MBMS paging DCI format, MBMS paging cycle and subframe position, respectively, to configure multiple MBMS paging indicator channels simultaneously.

The network side device can determine, according to the number of MBMS paging indicator channels configured by the system (ie, the number corresponding to the M-RNTI), the DCI format, how much information the MBMS paging indicator channel can carry in a paging cycle. Bits.

Step 102: The network side device configures MCCH modification indication information according to the number of MCCH channels and the unit length of the MCCH modification indication information, and maps to the specific location of the paging indication channel.

For example, if there are three MCCHs in the system, and each MCCH modification indication occupies 2 bits, the first 6 bits of the paging indicator channel can be assigned as the MCCH modification indication, which can be sequentially mapped, and the 0th and 1st bits are used as the MCCH1 modification indication. Indicates whether MCCH1 has changed. The 2nd and 3rd bits are used as MCCH2 modification indications to indicate whether MCCH2 has changed. The 4th and 5th bits are used as MCCH1 modification indications to indicate whether MCCH3 has changed.

Of course, other specific locations may also be used to map the MCCH modification indication information, and the number of bits occupied by each MCCH modification indication should also be configurable.

Step 103: The network side device determines, according to the remaining resource quantity on the paging indication channel (ie, resources other than the MCCH modification indication) and the unit length of each paging indication information, determining a paging indication on the paging indicator channel. The number N (N > 1 and N is an integer), and divides the MBMS service into N groups, corresponding to N paging indications respectively; In this step, the network side device sets a unit length of each paging indication (eg, one bit corresponds to one paging indication, or two bits correspond to one paging indication), and is calculated according to the unit length of the determined paging indication. How many paging indicators can be divided into the number of paging bits, for example, the remaining resource amount (ie, the number of remaining paging bits) is 20 bits, and the unit length of each paging indication is 2 bits, then the paging indicator channel can be The MBMS service is configured with 10 paging indicators;

After determining the number of paging indicators that can be carried on the paging indicator channel, grouping the MBMS services can be implemented by the following formula:

PI = MBMS service ID mod N formula ( 1 )

The PI is the MBMS service group identifier, and the identifier corresponds to the paging indicator identifier. The MBMS service ID is the service identifier of an MBMS service in the MBMS service transmission area corresponding to the MCCH; N is the paging indication corresponding to the MCCH. The number is 10 in this embodiment;

Of course, the MBMS service may be grouped by other means, such as using the MBMS session ID (the MBMS session identifier, indicating the session identifier of an MBMS service in the MBMS service transmission area corresponding to the MCCH) instead of the MBMS service ID, or MBMS service ID + MBMS session ID instead, for example: MBMS service identifier is 24 bits long, MBMS session identifier is 8 bits long, and the two identifiers can be connected to form a 32-bit long value (including the first 24 bits or the last 24 bits of the MBMS service identifier). In both cases, it is substituted into the above formula (1).

Similarly, the network side device may also group according to the service type to which the MBMS service belongs in the cell, or divide the MBMS services whose frequency of change is similar according to the frequency of service change, or according to the popularity of the MBMS service (such as participation). The number of users of the service is grouped, or grouped in combination with several of the above information.

Step 104: The network side device maps the MCCH modification indication information to the corresponding paging indicator channel, and maps the paging indication information of each MBMS service group to the paging indicator corresponding to each MBMS service group, and searches for The paging indication information of each MBMS service group is periodically sent on the indication channel;

The paging indication information of the MBMS service group is used to identify whether the MBMS service in the MBMS service group is updated. When an MBMS service group is updated, the UE may further receive the MCCH to learn which MBMS service in the MBMS service group. There are updates. The process of receiving the paging indication information by the UE, as shown in FIG. 2, includes the following steps: Step 201: The UE receives the MBMS where the MBMS service of interest is located at the corresponding location of the paging indicator channel according to the sending location set by the network side device. The paging indication information of the service group; in this step, the UE uses the same operation method as the network side device to learn the transmission location set by the network side device, that is, the UE occupies according to the resource quantity of the paging indication channel and the MCCH modification indication. The number of resources and the unit length of the paging indication information determine the number of paging indications, and then determine the grouping result of the MBMS service according to the same grouping principle as the network side device, and finally obtain the paging indication location corresponding to each MBMS service group;

The number of resources of the paging indicator channel may be further obtained according to the DCI format corresponding to the MBMS paging indicator channel, the MBMS paging period and the subframe offset are combined with the M-RNTI, and the parameters of the MBMS paging indicator channel may be obtained by the network side. The MBMS paging configuration information is sent to the UE, for example: an MBMS paging cycle and a subframe offset for calculating the number of paging indication channel resources, a DCI format corresponding to the MBMS paging indication channel, a number of MCCH channels, and paging indication information. The unit length and so on. The above DCI format may also be pre-assigned to the UE without being sent in the MBMS paging configuration information. In addition, the number of MCCH channels mentioned above can also be obtained by the UE through the configuration information of the MCCH.

If there is a scenario in which a plurality of paging indicator channels exist, the network side device may also send the number of paging indicator channels configured by the current cell to the UE through the MBMS paging configuration information.

Step 202: When the paging indication information of the MBMS service group received by the UE indicates that the MBMS service is updated in the MBMS service group, the UE learns, according to the MCCH modification indication information, which MCCH the MBMS service group may be carried on.

In the foregoing process, after receiving the paging indication channel information, the UE may determine, according to the foregoing grouping situation, which MBMS service group is corresponding to the paging indication, and further select whether to further receive the corresponding MCCH according to the preference of the user, and obtain specific Which MBMS service is to be sent, or which MBMS service configuration is changed, or which MBMS service is about to end. The UE can quickly determine whether the service changes or not because the paging information corresponding to the MBMS service group in which the service is of interest to the UE is located at a specific location of the paging indicator channel. The MBMS service that the user is interested in includes the MBMS service that the user has joined and the MBMS service that is intended to join.

The process of transmitting paging indication information is further described in detail below in conjunction with a specific application scenario. Example 1

It is assumed that the system allocates only one M-RNTI and sets the DCI format corresponding to the M-RNTI. The DCI format can carry 26 bits of information (that is, the number of information bits that can be carried on the paging indicator channel is 26); The two MBMS services belong to two MBMS service transmission areas, and two MCCHs need to be configured. MCCH1 and MCCH2 are configured in the system message, respectively, corresponding to the MBMS service transmission area identifier; and the configuration information of the MBMS paging indicator channel, such as paging period, subframe offset, M-RNTI, each The length of the paging indicator (2bit), etc.; at this time, the network side device divides the 26bits that can be carried on the paging indicator channel into two parts, and the first part is used to carry the MCCH modification indication, because two MCCHs are configured in the current cell, The first 2 bits of the paging indication channel may be used to carry the MCCH modification indication, where the 0th bit is used to indicate whether the MCCH1 is modified, the first bit is used to indicate whether the MCCH2 is modified, and the remaining 24 bits in the paging indication channel are divided into the second. The part is configured to carry the paging indication information of the MBMS service group. When the unit length of the paging indication of each MBMS service group is 2 bits, the number of paging indications of the MBMS service group that can be carried in the paging indication channel is 24/2=12, in this way, the MBMS service is also divided into 12 groups, and each MBMS service group corresponds to a paging indication; after that, the network side device will The MCCH modification indication information is mapped to the corresponding paging indicator channel; the paging indication information of each MBMS service group is mapped to the paging indicator corresponding to each MBMS service group, and each of the paging indicator channels is periodically sent. The paging indication information of the MBMS service group is sufficient.

When the network side device is an MBMS service group, it can be used for the service ID mod 12, corresponding to the corresponding paging indicator. If the service ID of a certain service is 190329, 190329 mod 12 = 9, then the service corresponding to the search The call indication is located at #21 bit and #22bit, see Figure 3.

Example 2

Suppose the system only allocates one M-RNTI and sets the DCI format, which can carry 24bit. The information that is transmitted in the system belongs to two MBMS service transmission areas. Therefore, four MCCHs need to be configured, and the other ones are MCCH1, MCCH2, MCCH3, and MCCH4, and the MBMS service transmission area identifier corresponding to each MCCH is given. And providing configuration information of the MBMS paging indicator channel, such as a paging period, a subframe offset, an M-RNTI, a length of each paging indication (2 bits), and the like;

At this time, the network side device divides the 24 bits of the paging indication information into two, and the first 8 bits are used for carrying

The MCCH modification indication, specifically, the 0th, 1st bit carries the MCCH1 modification indication to indicate whether the MCCH1 is modified, the 2nd and 3rd bits carry the MCCH2 modification indication, to indicate whether the MCCH2 is modified, and the 4th and 5th bits carry the MCCH3 modification indication, to Indicates whether the MCCH3 is modified, and the 6th and 7th bits carry the MCCH4 modification indication to indicate whether the MCCH4 is modified. The remaining 16 bits are used to carry the MBMS service group paging indication information. When the unit length of each paging indication is configured to be 2 bits, the remaining The number of paging indicators that can be carried by the 16 bit is 16/2=8, and the network side device groups the MBMS services according to the number of paging indications, and then maps each MBMS service group with each paging indication, such as Grouping according to the QoS level of the MBMS service, the service group of the QoS class 2 can be corresponding to the second paging indicator, that is, the paging indicator corresponding to the service is located at the #10 bit and #l lbit, see the figure 4.

It can be seen from the foregoing embodiment that the technical solution of the present invention designs the MBMS paging indicator by combining the number of MCCHs, and performs paging bit design for the service group, so that the UE can directly know the MBMS service group where the MBMS service of the user is interested. The paging indication information, in turn, determines which MCCH to listen to to obtain specific service information, thereby reducing the possibility that the UE triggers its reception of MCCH signaling because of changes in the MBMS service that the user is not interested in. When the cell where the UE is located corresponds to multiple MBMS paging indicator channels, the paging indication information can still be sent by using the method of the present invention.

While the preferred embodiments of the present invention have been disclosed for purposes of illustration, those skilled in the art will recognize that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct the associated hardware, such as a read only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment can be used The form of hardware implementation can also be implemented in the form of software function modules. The invention is not limited to any specific form of combination of hardware and software.

Industrial applicability

The technical solution of the present invention fully utilizes the space of the paging indication channel, and more clearly indicates the paging situation of the different service groups of the UE and the change information of the MCCH.

Claims

Claim

A method for transmitting paging indication information of a multimedia broadcast multicast service (MBMS), which comprises:

The network side device sets a sending position of each MBMS point-to-multipoint control channel (MCCH) modification indication information on the paging indicator channel and a paging position information of the MBMS service group on the paging indicator channel;

2. The method of claim 1 wherein

The sending, by the network side device, the sending location of each MCCH modification indication information on the paging indicator channel includes:

3. The method of claim 2, wherein

The sending, by the network side device, the paging indication information of each MBMS service group on the paging indicator channel includes:

The network side device determines, according to the number of resources of the paging indication channel, the number of resources that the MCCH modification indication information has occupied, and the unit length of the paging indication information, the number of paging indication information that the remaining resources can carry, according to the quantity The MBMS service in the cell is grouped, and the paging indication information of the different service groups is mapped to the transmission location corresponding to the paging indicator channel.

4. The method of claim 3, further comprising:

The network side device determines the number of resources of the paging indication channel according to the following paging resources: a downlink control information format corresponding to the MBMS paging indication channel, an MBMS paging period, a subframe offset, and an MBMS wireless network temporary identifier.

5. The method of claim 3, wherein

(1) PI = MBMS service ID mod N;

( 2 ) PI = MBMS session ID mod N;

(3) PI = (MBMS service ID + MBMS session ID) mod N;

6. The method of claim 3, wherein

The network side device groups the MBMS services in the cell by using any one of the following methods:

7. The method of claim 1 further comprising:

Receiving, by the user equipment, the paging indication information of the MBMS service group where the MBMS service of the user is interested in the corresponding location of the paging indicator channel, and obtaining the MBMS service group according to the MCCH modification indication information, according to the sending location set by the network side device. Corresponding MCCH.

8. The method according to any one of claims 1 to 4, wherein

The network side device is an evolved node B or a radio network controller.

A network side device for transmitting a multimedia broadcast multicast service (MBMS) paging indication information, where the network side device includes a configuration module and a sending module, where:

The configuration module is configured to: set a sending position of each MBMS point-to-multipoint control channel (MCCH) modification indication information on the paging indicator channel and a sending position of the paging indication information of the MBMS service group on the paging indicator channel. ; The sending module is configured to: send the corresponding MCCH modification indication information and the paging indication information of the MBMS service group on the paging indication channel according to the sending location set by the configuration module.

10. The network side device according to claim 9, wherein

The configuration module is configured to set a sending position of each MCCH modification indication information on the paging indicator channel in the following manner:

11. The network side device according to claim 10, wherein

12. The network side device according to claim 11, wherein

13. The network side device according to claim 11 or 12, wherein

(1) PI = MBMS service ID mod N;

( 2 ) PI = MBMS session ID mod N;

(3) PI = (MBMS service ID + MBMS session ID) mod N; The PI is an MBMS service group identifier, and each PI corresponds to each paging indicator, and the MBMS service ID is a service identifier of an MBMS service in the MBMS service transmission area corresponding to the MCCH, and N is a paging that the remaining resources can carry. The number of the indication information, the MBMS session ID is the session identifier of an MBMS service in the MBMS service transmission area corresponding to the MCCH.

14. The network side device according to claim 11 or 12, wherein

The configuration module is configured to group the MBMS services in the cell in any one or more of the following manners:

The network side device according to claim 11 or 12, wherein

The network side device is an evolved node B or a radio network controller.