CN1684443A - Service transmission carrier and MBMS service realizing method - Google Patents

Abstract

The invention discloses a service transmission bearer and a method for implementing MBMS services. The service transmission bearer implementation method mainly includes: preset a predetermined time period for determining the service transmission bearer mode; The number of users receiving the multimedia broadcast/multicast service; judging according to the statistical results whether the number of users receiving the multimedia broadcast/multicast service conforms to the predetermined rule, if the judgment result is yes, using the first transmission bearer mode to carry the multimedia broadcast/multicast service; otherwise, the multimedia broadcast/multicast service is carried in a second transmission bearer manner. The MBMS service implementation method mainly uses the service transmission bearer method to establish a service bearer. The present invention can make the system more stable and reliable when transmitting MBMS services because the service transmission bearer mode is determined by setting a predetermined time period.

Description

Service Transmission Bearer and MBMS Service Realization Method

technical field

The invention relates to the field of mobile communication, in particular to a service transmission bearer and a method for realizing MBMS service in the third-generation mobile communication.

Background technique

Multimedia broadcast and multicast service (hereinafter referred to as MBMS service) is a new service in the third generation of mobile communication. It is a point-to-multipoint service in which one data source sends data to multiple users in the mobile network, and it can realize network resources Sharing to improve the utilization of network resources, especially air interface resources. At present, MBMS only supports two types of services: background (hereinafter referred to as Background) and streaming (hereinafter referred to as Streaming), wherein Background is suitable for message and download applications, and Streaming is suitable for streaming applications.

MBMS services can adopt different bearing modes in a cell of a mobile network: point-to-point (hereinafter referred to as PTP) mode and point-to-multipoint (hereinafter referred to as PTM) mode, wherein the PTP mode is point-to-point transmission, that is, the radio network controller (hereinafter referred to as RNC for short) establishes a dedicated physical channel to transmit MBMS services with each UE. The MBMS service is carried on the user-dedicated channel receiving the service, and the PTM bearer mode is point-to-multipoint transmission, that is, the RNC does not establish a dedicated physical channel with the UE. connection, but use public channels to transmit MBMS services, and MBMS services are carried on public channels.

At present, in a cell of a mobile communication system, it is determined which bearer mode to use to carry MBMS services mainly by counting the number of users receiving MBMS services in a cell, that is, through a counting process (hereinafter referred to as Counting).

The counting process is as follows:

1. The RNC performs Counting, and records the user information receiving the MBMS service obtained through the core network (hereinafter referred to as CN) in the MBMS service context Context;

2. The RNC counts the number of users receiving the MBMS service in the current MBMS service context Context. If the statistical result shows that the number of users receiving the MBMS service exceeds the predetermined threshold, the MBMS service will adopt the PTM bearer mode in the cell. public channel broadcasting;

3. If the statistical result is that the number of users receiving the MBMS service is less than the predetermined threshold, then after repeated counting several times, it is decided whether to adopt the PTP bearer mode.

During the process of the MBMS service, a re-counting process (hereinafter referred to as Re-counting) may also be performed to ensure that the currently used bearer mode is the most suitable.

There is following shortcoming in above-mentioned prior art:

1. The Counting or Re-counting process counts the users receiving MBMS services in the cell multiple times, but does not specify the time for determining the service transmission bearer mode. The counting results obtained through the Counting or Re-counting process are not stable, which may cause The MBMS service in a cell is switched back and forth between the two bearer modes. For example, the initial counting result of the Counting process is that the number of users receiving the MBMS service in the cell is greater than the predetermined threshold, and the next counting result is that the number of users receiving the MBMS service in the cell is less than the predetermined threshold. Threshold, according to the counting result, the system may frequently switch the service transmission bearer mode. Therefore, the prior art still lacks a flexible and reliable bearer determination mechanism to ensure system stability.

2. In addition, the existing technology counts the number of users receiving MBMS services in the cell through the Counting or Re-counting process, but there is no reliable service transmission bearer mode switching criterion, that is, the existing technology only specifies the service transmission The threshold for switching between bearer modes, but there is still a lack of a mechanism that flexibly combines the Counting or Re-counting process to achieve accurate switching between service transmission bearer modes.

Contents of the invention

The technical problem solved by the invention is to provide a flexible and reliable service transmission bearer and MBMS service implementation method, so as to solve the problem that the existing technology easily causes system instability.

In order to solve the above problems, the implementation method of the service transmission bearer of the present invention mainly includes the following steps:

Preset a predetermined period of time for determining the bearing mode of service transmission;

Counting the number of users receiving multimedia broadcast/multicast services in the cell within the predetermined time period or at the end;

Judging whether the number of users receiving the multimedia broadcast/multicast service conforms to the predetermined rule according to the statistical results, if the judgment result is yes, adopting the first transmission bearer mode to carry the multimedia broadcast/multicast service; otherwise, adopting the second transmission bearer mode to bear all The multimedia broadcast/multicast service described above.

Wherein, the number of users receiving the multimedia broadcast/multicast service in the cell is counted one or more times according to the counting process or the re-counting process.

Wherein, the first transmission bearer mode is a point-to-multipoint mode, the second transmission bearer mode is a point-to-point mode, and the predetermined rules include:

The number of users receiving multimedia broadcast/multicast services in one count during the counting process or recounting process at the end of the predetermined time period is higher than the point-to-multipoint establishment threshold; or

The number of times the number of users receiving multimedia broadcast/multicast services is higher than the point-to-multipoint establishment threshold in the counting process or the re-counting process has been completed in the predetermined time period or at the end is greater than a certain probability.

Further, it also includes:

According to the statistical results, adjust the scheduled time period for determining the service transmission bearer mode and perform statistics again. If the statistical result in the new scheduled time period is that the number of users receiving multimedia broadcast/multicast services meets the predetermined rules, then determine that the point-to-multipoint method is adopted Bear the multimedia broadcast/multicast service; otherwise, determine to adopt the point-to-point manner to bear the multimedia broadcast/multicast service.

Wherein, the adjustment includes the following optional steps:

If the statistical result is that the number of users receiving multimedia broadcast/multicast services in the counting process or re-counting process at the end of the predetermined time period is lower than the point-to-multipoint establishment threshold, then the adjustment is performed; or

If the statistical result is that the counting process or re-counting process has been completed in the predetermined time period or at the end, the number of times the number of users receiving multimedia broadcast/multicast services is lower than the point-to-multipoint establishment threshold is greater than a certain probability, then the adjustment is performed .

In addition, the first transmission bearer mode is a point-to-point mode, the second transmission bearer mode is a point-to-multipoint mode, and the predetermined rules include:

The number of users receiving multimedia broadcast/multicast services in one count during the counting process or recounting process at the end of the predetermined time period is lower than the point-to-multipoint establishment threshold; or

The number of times that the number of users receiving multimedia broadcast/multicast services is lower than the point-to-multipoint establishment threshold in the counting process or re-counting process completed in the predetermined time period or at the end is greater than a certain probability.

Further, it also includes:

According to the statistical results, adjust and determine the scheduled time period of the service transmission bearing mode and perform statistics again, if the statistical result in the new scheduled time period is that the number of users receiving multimedia broadcast/multicast services meets the predetermined rules, then it is determined to adopt the point-to-point mode to carry the described A multimedia broadcast/multicast service; otherwise, determine that the multimedia broadcast/multicast service is carried in a point-to-multipoint manner.

Wherein, the adjustment includes the following optional steps:

If the statistical result is that the number of users receiving multimedia broadcast/multicast services in the counting process or recounting process at the end of the predetermined time period is greater than the point-to-multipoint establishment threshold, the adjustment is performed; or

If the statistical result is that the number of times the number of users receiving multimedia broadcast/multicast services is greater than the point-to-multipoint establishment threshold in the counting process or the re-counting process that has been completed in the predetermined time period or at the end is greater than a certain probability, then the adjustment is performed.

Preferably, the predetermined time period is dynamically set by the radio network controller.

Correspondingly, the present invention provides a method for implementing a multimedia broadcast/multicast service, comprising the steps of:

a) The gateway GPRS support node initiates a multimedia broadcast/multicast service request, and the radio network controller sends the multimedia broadcast/multicast service request and the multimedia broadcast/multicast service counting indication to the user equipment in its area;

b) The user equipment receiving the counting indication returns a response message to the radio network controller in its area;

c) The radio network controller presets a predetermined time period for determining the service bearing mode, and counts the number of users receiving multimedia broadcast/multicast services in the cell during or at the end of the predetermined time period;

d) According to the statistical result, the wireless network controller judges whether the number of users receiving the multimedia broadcast/multicast service complies with a predetermined rule, and if the judgment result is yes, then determine that the first transmission bearer mode is used to bear the multimedia broadcast/multicast service; otherwise , determining that the multimedia broadcast/multicast service is carried in a second transmission bearer manner;

e) The radio network controller notifies the user equipment of the transmission bearer mode and related parameter information of the MBMS service;

f) After receiving the notification, the user equipment establishes a corresponding bearer channel to transmit the MBMS service according to relevant parameter information.

Wherein, step a) specifically includes:

The gateway GPRS support node sends a multimedia broadcast/multicast service request to the serving GPRS support nodes registered by all user equipments in the entire pool area respectively;

Each serving GPRS support node sends the multimedia broadcast/multicast service request to the radio network controller in the area where the registered user equipment is located;

The radio network controller in each area sends the multimedia broadcast/multicast service request and the multimedia broadcast/multicast service count indication to the user equipment in its area.

In addition, the number of users receiving multimedia broadcast/multicast services in the cell is counted one or more times according to the counting process or the re-counting process.

Preferably, the first transmission bearer mode is a point-to-multipoint mode, the second transmission bearer mode is a point-to-point mode, and the predetermined rules include:

The number of users receiving multimedia broadcast/multicast services in one count during the counting process or recounting process at the end of the predetermined time period is higher than the point-to-multipoint establishment threshold; or

The number of times the number of users receiving multimedia broadcast/multicast services is higher than the point-to-multipoint establishment threshold in the counting process or the re-counting process has been completed in the predetermined time period or at the end is greater than a certain probability.

Preferably, the first transmission bearer mode is a point-to-point mode, the second transmission bearer mode is a point-to-multipoint mode, and the predetermined rules include:

The number of users receiving multimedia broadcast/multicast services in one count during the counting process or recounting process at the end of the predetermined time period is lower than the point-to-multipoint establishment threshold; or

The number of times that the number of users receiving multimedia broadcast/multicast services is lower than the point-to-multipoint establishment threshold in the counting process or re-counting process completed in the predetermined time period or at the end is greater than a certain probability.

Compared with the prior art, the present invention has the following advantages:

1. The present invention determines the time period for determining the bearer mode by preset, and then determines the corresponding bearer mode according to the statistical results within the time period or at the end, which can improve the stability of the system. After the number of users of the multicast service meets the switching threshold of the service transmission bearer mode, the switching is not performed immediately, but at the end of the predetermined time period, if the statistical result still meets the switching conditions, the switching is performed again, which can avoid system There is no frequent change of service transmission bearing modes within the set predetermined time period, which improves the stability of the system;

2. In addition, the present invention counts the number of users receiving multimedia broadcast/multicast services in the cell during or at the end of the predetermined time period, and combines the Counting or Re-counting process to determine the service transmission bearing mode according to predetermined rules, that is, clearly The conditions for switching between service transmission bearer modes are defined, and the accurate switching between service transmission bearer modes can be realized by flexibly combining the Counting or Re-counting process.

Description of drawings

Fig. 1 is a schematic diagram of the composition of a MBMS system applied in a specific embodiment of the method for implementing service transmission bearer of the present invention;

FIG. 2 is a flow chart of a method for implementing a service transmission bearer of the present invention in the network environment shown in FIG. 1;

Fig. 3 is a schematic diagram of a network environment applied to the MBMS service implementation method of the present invention;

FIG. 4 is a flow chart of implementing MBMS services in the network environment shown in FIG. 3 .

Detailed ways

FIG. 1 illustrates a schematic diagram of the basic structure of a mobile communication system applying an embodiment of the present invention. More specifically, FIG. 1 illustrates the necessary components for providing MBMS services in the mobile communication system and the relationship between these elements.

Referring to Fig. 1, the implementation of MBMS service is based on the general packet radio service (hereinafter referred to as GPRS) core network, and a new network unit is added. Broadcast and Multicast Service Center 01 (hereinafter referred to as BM-SC) is the service control center for implementing MBMS services; Gateway GPRS Support Node 02 (hereinafter referred to as GGSN) and Serving GPRS Support Node 03 (hereinafter referred to as SGSN) constitute the transmission of MBMS services The network provides routing for data transmission; the home location register 06 (hereinafter referred to as HLR) stores data related to users, and can provide services such as user authentication; UMTS terrestrial radio access network 04 (hereinafter referred to as UTRAN) provides The MBMS service provides wireless resources; Uu 07 represents the wireless interface between the terminal and the access network; User Equipment 05 (hereinafter referred to as UE) is a terminal device used to receive data. The radio resources used by MBMS services are not dedicated to users, but shared by all users of this service.

Fig. 2 has illustrated the main flowchart of the implementation method of the service transmission bearer of the present invention, mainly comprises the following process: first preset the predetermined period of time for determining the service bearer mode (in step s11); Receive the number of users of the multimedia broadcast/multicast service in the community (in step s12); further judge whether the number of users who receive the multimedia broadcast/multicast service meets the predetermined rule (in step s13) according to the statistical results, if meet the predetermined rule, then use The first transmission bearer way bears the multimedia broadcast/multicast service (in step s14); otherwise, the second transmission bearer way bears the multimedia broadcast/multicast service (in step s15).

In order to make the statistical results more objective, further optimization measures can be taken. For example, in the above step s13, the scheduled time period for determining the service transmission bearing mode can be further adjusted according to the statistical results and the number of users can be re-counted, that is, the new scheduled time period can be counted. The number of users receiving multimedia broadcast/multicast services in the cell during the time period or at the end; then judge whether the number of users receiving multimedia broadcast/multicast services meets the predetermined rules according to the re-statistical results, and if it meets the predetermined rules, then determine to adopt the first The transmission bearer mode bears the multimedia broadcast/multicast service; otherwise, it is determined to adopt the second transmission bearer mode to bear the multimedia broadcast/multicast service.

In addition, within the above-mentioned predetermined time period, an interval time can be specified between two counting tests, and the interval time can be dynamically or fixedly set by the system in order to make the test results more reliable, or the number of counting tests can be limited, and each counting test can be specified interval between.

After the further optimization measures are taken, the switching of the service transmission bearer mode will be more reliable and the system stability will be higher.

The aforementioned predetermined time period can be dynamically or fixedly set by the RNC. Since the predetermined time period is set, if the existing service bearer mode is the first service transmission bearer mode, the first service transmission bearer mode will be maintained within a certain period of time No change, after the number of users receiving the MBMS service in the cell conforms to the predetermined rule according to the statistics, then switch to the second service transmission bearing mode. In this way, shortcomings such as system instability caused by frequent switching between service transmission bearing modes can be avoided.

In the existing MBMS system, MBMS services are carried by two service transmission bearer modes: PTM and PTP. The first bearer mode can be PTM or PTP mode. Correspondingly, the second bearer mode can be PTP or PTP. In the PTM mode, the conversion threshold between PTM and PTP is the establishment threshold of PTM. In fact, which service transmission bearer mode is adopted by the first bearer mode and the second bearer mode is not the key point of the present invention and does not affect the effect of the present invention.

In addition, in order to improve the accuracy of determining the service transmission bearer mode, the present invention formulates predetermined rules for establishing or switching the service transmission bearer mode in combination with counting or recounting methods, which service transmission bearer can be adopted according to the first bearer mode and the second bearer mode Mode determination, for example, the first bearer mode is PTM mode, and the second bearer mode is PTP mode, then the predetermined rules include the following optional content:

The number of users receiving multimedia broadcast/multicast services in one count during the counting process or recounting process at the end of the predetermined time period is higher than the point-to-multipoint establishment threshold; or

The number of times the number of users receiving multimedia broadcast/multicast services is higher than the point-to-multipoint establishment threshold in the counting process or the re-counting process has been completed in the predetermined time period or at the end is greater than a certain probability.

If the first transmission bearer mode is a point-to-point mode, and the second transmission bearer mode is a point-to-multipoint mode, the predetermined rules include:

The number of users receiving multimedia broadcast/multicast services in one count during the counting process or recounting process at the end of the predetermined time period is lower than the point-to-multipoint establishment threshold; or

The number of times that the number of users receiving multimedia broadcast/multicast services is lower than the point-to-multipoint establishment threshold in the counting process or re-counting process completed in the predetermined time period or at the end is greater than a certain probability.

Since the predetermined rule is combined with the counting or recounting process, the result of one or more counts obtained according to the counting or recounting process is a statistical result within a period of time, so the statistical result is more accurate, and then the establishment or switching of the service transmission bearer mode is compared Existing technology will be more accurate.

The implementation method of the service transmission bearer of the present invention will be described below in conjunction with a specific communication process. The communication process is to provide MBMS services to UEs in a cell. Since the main improvement of the present invention is on the network side, the specific details on the CN side will not be described in detail. The communication process includes an RNC and its controlled UE in a cell. When an MBMS service arrives, the RNC sets the Counting indicator in the Notification to instruct the UE to perform the counting/recounting process. In the RNC, there is one for each MBMS service Record the MBMS Service Context, which includes the records of users who join this service and are in the RRC Connected and PMM-Connected states. After the user responds, the RNC obtains the number of users receiving the MBMS service in the cell by counting the number of users in the MBMS Service Context. User number. The specific counting/recounting process does not involve the essence of the present invention, and is a well-known technology in the art. It will not be described in detail here. Within a preset time period, according to the statistical results of counting/recounting, the RNC determines which service transmission bearer mode to take to bear The MBMS business.

A number of typical embodiments of establishing or switching the service transmission bearer mode in the MBMS system are described in detail below.

first embodiment

This embodiment is a specific embodiment of establishing a service bearer mode when the system is counting for the first time. The first bearer mode adopts the PTM mode, and the second service bearer mode adopts the PTP mode, specifically including the following process:

1. When the MBMS service arrives, the RNC sets the Counting indicator in the Notification;

2. After the user response is completed, the RNC obtains the number of users receiving the MBMS service in the cell through the MBMS service context Context;

3. If the number of users is greater than the PTM establishment threshold, PTM can be used to carry the MBMS service;

4. If the number of users is less than the PTM establishment threshold, according to the number of users receiving the MBMS service in the cell at this time, set a predetermined time period for determining the service transmission bearing mode;

5. During or at the end of the predetermined period of time, the RNC may perform multiple counting processes to count the number of users receiving the MBMS service. According to the predetermined rule, if one of the counting results shows that the number of users receiving the MBMS service is greater than that established by PTM If the threshold is set, the PTM bearer mode is adopted; if the statistical counting results show that the number of users receiving MBMS services is less than the PTM establishment threshold, the PTP bearer mode is adopted.

second embodiment

For step 5 in the first embodiment, if the number of users receiving MBMS services is greater than the PTM threshold in the counting results of the statistics, then adjust the predetermined time period and perform statistics again, for example, restore the predetermined time period to the original size, restart the process from step 1.

third embodiment

For step 5 in the first embodiment, if the number of times of exceeding the PTM establishment threshold value in the statistical counting result is greater than a certain probability value, such as 50%, then adjust the predetermined time period, for example, restore the predetermined time period to the original size, and restart the process from step 1.

Fourth embodiment

For step 5 in the first embodiment, according to a predetermined rule, if the number of times the counted results exceed the PTM establishment threshold is greater than a certain probability, such as 50%, then a PTM bearer is established.

fifth embodiment

This embodiment is a specific embodiment for realizing switching of service transmission bearer mode in the case of MBMS system recounting. The first bearer mode adopts PTM mode, and the second service bearer mode adopts PTP mode, and it is assumed that the original service transmission bearer mode is the first bearer mode (that is, the PTM method), in order to achieve a reasonable switch, the specific process includes:

1. When the MBMS service arrives, if the counting result of the recounting process is that the number of users receiving the MBMS service in the cell exceeds the PTM establishment threshold, the current PTM bearer mode remains unchanged;

2. If the counting result of the recounting process is that the number of users receiving the MBMS service in the cell is less than the PTM establishment threshold, the service bearer mode can be set and determined according to the relationship between the number of users receiving the MBMS service in the cell and the PTM establishment threshold at this time the predetermined period of time;

3. During or at the end of the predetermined time period, the RNC can carry out multiple recounting processes for statistics. According to the predetermined rules, if the number of users receiving MBMS services once in the statistical counting results is greater than the PTM establishment threshold, the PTM bearer mode will be used , if the statistical counting results show that the number of users receiving the MBMS service is less than the PTM establishment threshold, the PTP bearer mode is adopted.

Sixth embodiment

For step 3 in the fifth embodiment, if the number of users receiving the MBMS service is greater than the PTM threshold in the counting results of the statistics, then adjust the predetermined time period, for example, restore the predetermined time period to the original size, and restart the step 1 process.

Seventh embodiment

This embodiment is another specific embodiment of establishing a service transmission bearer mode in the case of the initial Counting of the system. The first bearer mode adopts the PTM mode, and the second service bearer mode adopts the PTP mode, specifically including the following process:

1. When the MBMS service arrives, the RNC sets the Counting indicator in the Notification;

2. After the user response is completed, the RNC obtains the number of users receiving the MBMS service in the cell through the MBMS service context Context;

3. Unlike the first embodiment, if the number of users receiving MBMS is greater than the PTM establishment threshold at this time, it is necessary to directly set the predetermined time period for determining the service bearing mode according to the number of users receiving the MBMS service in a certain cell at this time;

5. During or at the end of the predetermined period of time, the RNC may perform multiple counting processes to count the number of users receiving the MBMS service. According to the predetermined rule, if one of the counting results shows that the number of users receiving the MBMS service is greater than that established by PTM If the threshold is set, the PTM bearer mode is adopted; if the statistical counting results show that the number of users receiving MBMS services is less than the PTM establishment threshold, the PTP bearer mode is adopted.

Eighth embodiment

For step 5 in the seventh embodiment, if the number of users receiving the MBMS service is less than the PTM establishment threshold in the statistical counting results, then adjust the predetermined time period, for example, restore the predetermined time period to the original size, and re- Start the process of step 1.

Ninth embodiment

For step 5 in the seventh embodiment, if the number of users receiving MBMS services in the statistical counting result is less than the PTM threshold and exceeds a certain probability value, such as 50%, then adjust the size of the predetermined time period, for example, the predetermined time period Restore it to its original size and start the process from step 1 again.

Tenth embodiment

For step 5 in the first embodiment, according to predetermined rules, if the number of users receiving MBMS services in the statistical counting result is less than the PTM establishment threshold value exceeds a certain probability value, such as 50%, then a PTP bearer is established.

Eleventh embodiment

This embodiment realizes the bearer mode switch under the MBMS system recounting process situation, assuming that the original bearer mode is PTP, mainly includes the following process:

1. If the number of users receiving MBMS services in a cell is less than the PTM establishment threshold, keep the PTP bearer mode unchanged;

2. If the number of users receiving the MBMS service in a certain cell is greater than the PTM establishment threshold, according to the relationship between the number of users receiving the MBMS service in the cell and the PTM establishment threshold, set a predetermined time period for determining the service bearing mode;

3. During the predetermined time period or the entire predetermined time period, the RNC can carry out multiple recounting processes. If the number of times the number of users receiving the MBMS service in the statistical counting result is greater than the PTM establishment threshold is greater than a certain probability, the PTM bearer mode is used .

Twelfth embodiment

This embodiment is a specific embodiment of establishing a service bearer mode when the system is counting for the first time. The first bearer mode adopts the PTM mode, and the second service bearer mode adopts the PTP mode, specifically including the following process:

1. When the MBMS service arrives, the RNC sets the Counting indicator in the Notification;

2. After the user response is completed, the RNC obtains the number of users receiving the MBMS service in the cell through the MBMS service context Context;

3. If the number of users is greater than the PTM establishment threshold, PTM can be used to carry the MBMS service;

4. If the number of users is less than the PTM establishment threshold, according to the number of users receiving the MBMS service in the cell at this time, set a predetermined time period for determining the service transmission bearing mode;

5. At the end of the predetermined time period, the RNC performs a counting process and only counts once. If the counting result is that the number of users receiving the MBMS service is greater than the PTM establishment threshold, the PTM bearer mode is adopted; if the counting result is the number of users receiving the MBMS service If it is smaller than the PTM establishment threshold, the PTP bearer mode is adopted.

Thirteenth embodiment

This embodiment is a specific embodiment for realizing the switching of the service transmission bearer mode in the case of MBMS system recounting. Assuming that the original service transmission bearer mode is the PTM mode, in order to realize a reasonable switch, the following procedures are specifically included:

1. When the MBMS service arrives, if the counting result of the recounting process is that the number of users receiving the MBMS service in the cell exceeds the PTM threshold, the current PTM bearer mode remains unchanged;

2. If the counting result of the recounting process is that the number of users receiving MBMS services in the cell is less than the PTM establishment threshold, according to the relationship between the number of users receiving the MBMS service in the cell and the PTM establishment threshold at this time, set the service bearer mode. a predetermined period of time;

3. At the end of the predetermined time period, the RNC performs a recounting process and only counts once. If the counting result is that the number of users receiving the MBMS service is less than the PTM establishment threshold, the PTP bearer mode is used. If the counting result is the number of users receiving the MBMS service If the value is greater than the PTM establishment threshold, the PTM bearer mode is used.

The implementation method of the service transmission and bearer of the present invention has been described above with a plurality of typical embodiments. In fact, other feasible conversion embodiments can also be enumerated according to the established predetermined rules and optimization measures, which will not be repeated here.

Another aspect of the present invention is described below, and Fig. 4 illustrates a kind of network environment that the MBMS service implementation method of the present invention is applied, as shown in Fig. 4, wherein, GGSN is a gateway GPRS support node, and SGSN1, SGSN2 form a pool area. The coverage of RNC1 and RNC2 is within the service area of SGSN1, and the coverage of RNC3 and RNC4 is within the service area of SGSN2. User equipments UE1, UE2, UE3, and UE4 are in the area covered by RNC1 when they are powered on, so according to the current registration rules, they are registered on SGSN1 to which RNC1 belongs, while UE5 is in the area covered by RNC3 when they are powered on, so they register On SGSN2 to which RNC3 belongs. That is to say, UE1-UE4 establish a connection with the registered SGSN1 through the RNC1, and UE5 establishes a connection with the registered SGSN2 through the RNC3.

Fig. 5 has illustrated the procedure of the specific embodiment of the MBMS service implementation method of the present invention applied to the network environment of Fig. 4. When the system initiates an MBMS service, the GGSN in Fig. 4 finds that there are 5 user equipments in all in this pool area, and registers them respectively On SGSN1 and SGSN2, just send MBMS service request to these two SGSNs (in step s40);

Then each SGSN sends the MBMS service request to the radio network controller in the area where its registered user equipment is located. SGSN2 connects, so SGSN1 and SGSN2 send MBMS service request to RNC1 and RNC3 respectively (in step s41);

Furthermore, the radio network controllers in each area send the multimedia broadcast/multicast service request and the multimedia broadcast/multicast service count indication to the user equipments in their area, as shown in Figure 4, RNC1 and RNC3 respectively send UE1-UE4 and UE5 Send count indication (at step s42);

The user equipment UE1～UE4 that receives the counting indication returns a response message to the RNC1 in its area, and UE5 returns a response message to the RNC3 (in step s43);

According to the principle of the service transmission bearer implementation method of the present invention, after receiving the response message returned by the user equipment, RNC1 and RNC3 determine the predetermined time period for keeping the bearer mode unchanged, and count the number received in the cell within the predetermined time period or at the end The number of users of the MBMS service (at step s44);

Then according to statistical results RNC1 and RNC3 judge whether the number of users receiving the MBMS service meets the predetermined rule (in step s45), if the judged result is yes, then determine to adopt the first transmission bearer mode to bear the weight of the MBMS service (in step s46); otherwise , determining to adopt the second transmission bearer mode to carry the MBMS service (in step s47);

In this way, RNC1 and RNC3 notify the user equipment of the transmission bearer mode and related parameter information of the MBMS service (in step s48);

After receiving the notification, the user equipment establishes a corresponding bearer channel to transmit the MBMS service according to relevant parameter information (in step s49).

Specifically, the first transmission bearer mode may be a point-to-multipoint mode, and the second transmission bearer mode may be a point-to-point mode, and the predetermined rules include:

The number of users receiving multimedia broadcast/multicast services in one count during the counting process or recounting process at the end of the predetermined time period is higher than the point-to-multipoint establishment threshold; or

The number of times the number of users receiving multimedia broadcast/multicast services is higher than the point-to-multipoint establishment threshold in the counting process or the re-counting process has been completed in the predetermined time period or at the end is greater than a certain probability.

In addition, the first transmission bearer mode may also be a point-to-point mode, the second transmission bearer mode may be a point-to-multipoint mode, and the predetermined rules include:

The number of users receiving multimedia broadcast/multicast services in one count during the counting process or recounting process at the end of the predetermined time period is lower than the point-to-multipoint establishment threshold; or

The number of times that the number of users receiving multimedia broadcast/multicast services is lower than the point-to-multipoint establishment threshold in the counting process or re-counting process completed in the predetermined time period or at the end is greater than a certain probability.

In the implementation method of the above MBMS service, the implementation process of the service transmission bearer is optimized, so that the conversion of the service transmission bearer is more accurate and reliable.

The above is only a preferred embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made by using the description of the present invention and the contents of the accompanying drawings are all included in the claims of the present invention. within range.

Claims (14)

1. A method for implementing service transmission bearer, applied in a multimedia broadcast/multicast service system, characterized in that it includes: Preset a predetermined period of time for determining the bearing mode of service transmission; Counting the number of users receiving multimedia broadcast/multicast services in the cell within the predetermined time period or at the end; Judging whether the number of users receiving the multimedia broadcast/multicast service conforms to the predetermined rule according to the statistical results, if the judgment result is yes, adopting the first transmission bearer mode to carry the multimedia broadcast/multicast service; otherwise, adopting the second transmission bearer mode to bear all The multimedia broadcast/multicast service described above. 2. The method for implementing service transmission bearer according to claim 1, characterized in that the number of users receiving multimedia broadcast/multicast services in the cell is counted one or more times according to the counting process or the recounting process. 3. The method for implementing service transmission bearer according to claim 2, wherein the first transmission bearer mode is point-to-multipoint, the second transmission bearer mode is point-to-point mode, and the predetermined rules include : The number of users receiving multimedia broadcast/multicast services in one count during the counting process or recounting process at the end of the predetermined time period is higher than the point-to-multipoint establishment threshold; or The number of times the number of users receiving multimedia broadcast/multicast services is higher than the point-to-multipoint establishment threshold in the counting process or the re-counting process has been completed in the predetermined time period or at the end is greater than a certain probability. 4. The method for implementing service transmission bearer according to claim 2, wherein the first transmission bearer mode is point-to-point, the second transmission bearer mode is point-to-multipoint mode, and the predetermined rules include : The number of users receiving multimedia broadcast/multicast services in one count during the counting process or recounting process at the end of the predetermined time period is lower than the point-to-multipoint establishment threshold; or The number of times that the number of users receiving multimedia broadcast/multicast services is lower than the point-to-multipoint establishment threshold in the counting process or re-counting process completed in the predetermined time period or at the end is greater than a certain probability. 5. The method for implementing service transmission bearer according to claim 3, further comprising: According to the statistical results, adjust the scheduled time period for determining the service transmission bearer mode and perform statistics again. If the statistical result in the new scheduled time period is that the number of users receiving multimedia broadcast/multicast services meets the predetermined rules, then determine that the point-to-multipoint method is adopted Bear the multimedia broadcast/multicast service; otherwise, determine to adopt the point-to-point manner to bear the multimedia broadcast/multicast service. 6. The method for implementing service transmission bearer according to claim 5, wherein the adjustment includes the following optional steps: If the statistical result is that the number of users receiving multimedia broadcast/multicast services in the counting process or re-counting process at the end of the predetermined time period is lower than the point-to-multipoint establishment threshold, then the adjustment is performed; or If the statistical result is that the counting process or re-counting process has been completed in the predetermined time period or at the end, the number of times the number of users receiving multimedia broadcast/multicast services is lower than the point-to-multipoint establishment threshold is greater than a certain probability, then the adjustment is performed . 7. The method for implementing service transmission bearer according to claim 4, further comprising: According to the statistical results, adjust and determine the scheduled time period of the service transmission bearing mode and perform statistics again, if the statistical result in the new scheduled time period is that the number of users receiving multimedia broadcast/multicast services meets the predetermined rules, then it is determined to adopt the point-to-point mode to carry the described A multimedia broadcast/multicast service; otherwise, determine that the multimedia broadcast/multicast service is carried in a point-to-multipoint manner. 8. The method for implementing service transmission bearer according to claim 7, wherein the adjustment includes the following optional steps: If the statistical result is that the number of users receiving multimedia broadcast/multicast services in the counting process or recounting process at the end of the predetermined time period is greater than the point-to-multipoint establishment threshold, the adjustment is performed; or If the statistical result is that the number of times the number of users receiving multimedia broadcast/multicast services is greater than the point-to-multipoint establishment threshold in the counting process or the re-counting process that has been completed in the predetermined time period or at the end is greater than a certain probability, then the adjustment is performed. 9. The method for implementing a service transmission bearer according to any one of claims 1-8, wherein the predetermined time period is dynamically set by a radio network controller. 10. A method for implementing a multimedia broadcast/multicast service, comprising the steps of: a) The gateway GPRS support node initiates a multimedia broadcast/multicast service request, and the radio network controller sends the multimedia broadcast/multicast service request and the multimedia broadcast/multicast service counting indication to the user equipment in its area; b) The user equipment receiving the counting indication returns a response message to the radio network controller in its area; c) The radio network controller presets a predetermined time period for determining the service bearing mode, and counts the number of users receiving multimedia broadcast/multicast services in the cell during or at the end of the predetermined time period; d) According to the statistical result, the wireless network controller judges whether the number of users receiving the multimedia broadcast/multicast service complies with a predetermined rule, and if the judgment result is yes, then determine that the first transmission bearer mode is used to bear the multimedia broadcast/multicast service; otherwise , determining that the multimedia broadcast/multicast service is carried in a second transmission bearer manner; e) The radio network controller notifies the user equipment of the transmission bearer mode and related parameter information of the multimedia broadcast/multicast service; f) After receiving the notification, the user equipment establishes a corresponding bearer channel to transmit the multimedia broadcast/multicast service according to relevant parameter information. 11. The method for implementing multimedia broadcast/multicast services according to claim 10, characterized in that step a) specifically includes: The gateway GPRS support node sends a multimedia broadcast/multicast service request to the serving GPRS support nodes registered by all user equipments in the entire pool area respectively; Each serving GPRS support node sends the multimedia broadcast/multicast service request to the radio network controller in the area where the registered user equipment is located; The radio network controller in each area sends the multimedia broadcast/multicast service request and the multimedia broadcast/multicast service count indication to the user equipment in its area. 12. The method for implementing multimedia broadcast/multicast services according to claim 10 or 11, characterized in that the number of users receiving multimedia broadcast/multicast services in the cell is counted one or more times according to the counting process or the recounting process Make statistics. 13. The method for implementing multimedia broadcast/multicast services according to claim 12, wherein the first transmission bearer mode is point-to-multipoint mode, the second transmission bearer mode is point-to-point mode, and the Scheduled rules include: The number of users receiving multimedia broadcast/multicast services in one count during the counting process or recounting process at the end of the predetermined time period is higher than the point-to-multipoint establishment threshold; or The number of times the number of users receiving multimedia broadcast/multicast services is higher than the point-to-multipoint establishment threshold in the counting process or the re-counting process has been completed in the predetermined time period or at the end is greater than a certain probability. 14. The method for implementing multimedia broadcast/multicast services according to claim 12, wherein the first transmission bearer mode is a point-to-point mode, the second transmission bearer mode is a point-to-multipoint mode, and the Scheduled rules include: The number of users receiving multimedia broadcast/multicast services in one count during the counting process or recounting process at the end of the predetermined time period is lower than the point-to-multipoint establishment threshold; or The number of times that the number of users receiving multimedia broadcast/multicast services is lower than the point-to-multipoint establishment threshold in the counting process or re-counting process completed in the predetermined time period or at the end is greater than a certain probability.

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