WO2012025021A1

WO2012025021A1 - Method and system for configuring and bearing mbms service access probability factor

Info

Publication number: WO2012025021A1
Application number: PCT/CN2011/078418
Authority: WO
Inventors: 苟伟; 马子江; 艾建勋
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-08-26
Filing date: 2011-08-15
Publication date: 2012-03-01
Also published as: CN102378121A; CN102378121B

Abstract

The objective of the present invention is to provide a method and a system for configuring PF information in an MBMS statistical process, which are used for addressing the technical problem of MBMS service statistics in the situation that MBSFN regions having overlapping coverage in an LTE system. In the present invention, a network side determines MBSFN regions to which statistically processed MBMS services belong respectively, and configures a piece of common access probability factor (PF) information for all statistically processed MBMS services in each MBSFN region; or groups all statistically processed MBMS services in each MBSFN region, and provides a piece of common PF information for each group of statistically processed MBMS services in the MBSFN region after the grouping. The present invention simplifies the statistical process of the MBMS services in the LTE system, combines statistical requirements of different services, and optimizes configuration of the PF information.

Description

Method and system for configuring and carrying MBMS service access probability factor

The present invention relates to the field of mobile communications, and in particular, to a method and system for configuring and carrying a Multimedia Broadcast Multicast Service (MBMS) Access Probability Factor (PF). Background technique

With the rapid development of the Internet and the popularity of large-screen multi-function mobile phones, a large number of mobile data multimedia services and various high-bandwidth multimedia services have emerged, such as: video conferencing, television broadcasting, video on demand, video advertising, online education, interactive games, etc. Not only meets the rising business needs of mobile users, but also brings new business growth points to mobile operators. These mobile data multimedia services require multiple users to receive the same data at the same time. Compared with general data services, they have the characteristics of large data volume, long duration, and delay sensitivity. In order to effectively utilize the mobile to propose the MBMS service, the service is a technology for transmitting data from one data source to multiple targets, realizes sharing of resources of the network (including the core network and the access network), and improves network resources (especially Is the utilization of the air interface resource). The MBMS service 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, and provide 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 (3rd Generation, third generation digital communication).

In the MBMS technology, there is a statistical mechanism for the network side to receive the MBMS service on the UE (User Equipment) side. In the existing MBMS service statistics process, one PF information is configured for each MBMS service, and there is no MBSFN in the prior art. (Multimedia Broadcast multicast service Single Frequency Network) When the area overlap coverage occurs, there is no relationship between the PF information and the MBSFN area. In the prior art, the base station performs PF information configuration in units of cells, that is, configures PF information suitable for itself for each cell. The setting of the PF information is mainly to prevent a large number of UEs from participating in the uplink feedback at the same time, thereby causing the uplink resources to be tight. Summary of the invention

In view of the above, the present invention aims to provide a PF information configuration method and system in the MBMS statistical process, which is used for the technical problem of MBMS service statistics in the case of overlapping coverage of MBSFN areas in an LTE system.

In LTE (Long Term Evolution), since up to eight different MBSFN areas can be supported to overlap and cover cells in a certain area, such that the cell simultaneously supports MBMS service transmission in eight different MBSFN areas, the present invention provides A method for configuring PF information in an MBMS statistical process, the method comprising:

The network side determines the MBSFN (Multimedia Broadcast Multicast Service Single Frequency Network) area to which the MBMS (Multimedia Broadcast Multicast Service) service belongs, and configures a common one for all the counted MBMS services in each MBSFN area. PF (Access Probability Factor) information, or grouping all the counted MBMS services in each MBSFN area, and grouping the MBMS service configurations for each group in the MBSFN area after the grouping A shared PF message.

The manner of grouping all the counted MBMS services in each of the MBSFN areas includes: grouping the counted MBMS services in each MBSFN area according to a service type; or The counted MBMS services in each MBSFN area are grouped according to the service status.

When the packets are grouped according to the service status, the one or more of the following states are specifically included: the MBMS service being sent, the MBMS service to be sent, the MBMS service ending the transmission, and the temporary Stop sending MBMS services.

When the packets are grouped according to the service type, one or more of the following types are specifically included: a download class MBMS service, a streaming media class MBMS service, a Carousel class MBMS service, and a television class MBMS service.

To achieve the above object, the present invention provides a bearer method for an MBMS service access probability factor, which includes the following contents:

The network side simultaneously carries one or more sets of shared PF information of the MBMS service and each group of MBMS services in different states in the multicast control channel MCCH (Multicast Control Channel, MCCH) corresponding to the MBSFN area.

The one or more sets of different states are one or more of the following states: MBMS service being transmitted, MBMS service to be transmitted, MBMS service ending transmission, MBMS service suspended.

To achieve the above object, the present invention provides a configuration system for an MBMS service access probability factor, which includes the following contents:

a statistics module, where the statistics module collects MBSFN areas to which the MBMS services belong, and saves statistics information of the MBMS services;

And a configuration module, where the configuration module configures a common PF information for the MBMS service according to the saved statistics information of the MBMS service.

The configuration module groups the MBMS service, sets the MBMS service in a MBSFN area as a group, and configures PF information; or, groups the MBMS service in an MBSFN area, where the MBMS service group includes Grouping according to MBMS service type and grouping according to MBMS service status, and configuring PF information;

The service status grouping includes at least one of the following contents: downloading MBMS service, streaming media class MBMS service, Carousel class MBMS service, and television class MBMS service;

The service status packet includes at least one of the following contents, the MBMS service being transmitted, The MBMS service to be sent, the MBMS service to be transmitted, and the MBMS service to be suspended.

To achieve the above objective, the present invention provides a bearer system for an MBMS service access probability factor, which includes the following contents:

a bearer module, wherein the bearer module simultaneously carries the shared PF information of the MBMS service and the MBMS service in one or more sets of different states in the MCCH corresponding to the MBSFN area;

The present invention provides a method and system for configuring PF information in the MBMS service statistics in the LTE system, so that the MBMS service statistics process in the LTE system is simplified, and the configuration of the PF information is optimized by combining the statistical requirements of different services. The statistical process in the prior art is further simplified, and is simple and practical in practical applications. DRAWINGS

Figure 1 Schematic diagram of the MBMS service statistics process;

2 is a flow chart of configuring PF information in a packet in the same MBSFN area;

3 is a flow of a PF information shared by the same MBSFN area configuration;

Figure 4 is a system diagram for configuring the MBMS service access probability factor;

Figure 5 Diagram of the bearer system of the MBMS service access probability factor. detailed description

The present invention combines the characteristics of the LTE system and proposes a specific configuration manner in the configuration of the PF information.

Since the MBMS service is carried in the MBSFN mode in LTE, and In the LTE standardization process, it is recommended to activate or deactivate the MBMS service in units of MBSFN areas. Therefore, it is necessary to consider the reception status of all UEs in the entire MBSFN area, so that the MBMS service statistics process should be initiated in units of MBSFN areas, and feedback statistics of reception status for a certain MBMS service in the MBSFN area.

The present invention proposes to configure each PF information for each MBSFN area or MCCH, where the PF information may be one PF information shared by all the statistics MBMS services; further PF information may be carried in the MCCH and sent to the UE. The main benefit of this is that it is easy to implement and the operation is very simple, making the entire MBMS statistical process simple. The delay of the PF information of each base station is too large, so that the statistical cycle time is increased. After the PF information is configured, the probability of error of the base station can be effectively reduced, and the statistical efficiency is improved.

In LTE, because there is a corresponding relationship between the MCCH and MBSFN areas, an MCCH actually represents the MBSFN area corresponding to this MCCH.

Configure a common PF information for each MBSFN area or the MCCH. In this case, all the counted MBMS services use the same PF information during the statistics of an MBMS service in an MBSFN area. The PF information can be used in this MBMS. Changes occur at each PF information period within the statistical period. At this time, all MBMS services that are counted in the MBSFN area or MCCH share the same PF information. And the PF information is sent to the UE in the MCCH.

In the MBMS service statistics process, as shown in Figure 1, the PF information is sent multiple times in a statistical period. For example, after the network side starts the MBMS service statistics, the statistics are sent as the starting point for 0 seconds, which lasts for 10 seconds. Then, the MBMS service statistics period is 10 seconds. During the period, the network side needs to send PF information multiple times. For example, a common PF information is sent at 0 seconds. This PF information is applied to the MBMS service in the entire MBSFN area or MCCH, and a shared PF information is sent at the 2s time. In the 4th, a common PF information is sent again, that is, the period of the PF information is 2 seconds, and in general, the PF information period is sequentially increased. If the network side is in the first In the period of a shared PF information, that is, the required feedback information is obtained within 2 s, the network side can terminate the current MBMS service statistics, and the PF information is not sent subsequently in the current period.

When initiating the MBMS service statistics, the network side first distinguishes the MBMS services that need to be counted according to the MBSFN area (that is, the network side determines the MBSFN area to which each MBMS service that needs to be counted belongs), and for all the MBSFN areas. The statistical MBMS service configures a shared PF information. The PF information here is configured by the upper-layer node MCE (Multi-cell/multicast Coordination Entity) of the base station. Because the MCE is an upper-layer node connected to all base stations in the MBSFN area, the MCE sends the PF information to the MBSFN. Each base station in the area, the base station retransmits this information to the UE. In this way, the complicated process of independently configuring PF information for each cell by each base station is avoided, so that the parameter configuration in the statistics of the MBMS service is simplified. In summary, the biggest advantage of the above processing method is that the network side is simple to handle and easy to manage, especially for MBMS service statistics in a large range (in the entire MBSFN area). The network side determines the MBSFN area to which each of the counted MBMS services belongs. The network side may be an MCE or a BMSC (Broadcast-Multicast - Service Centre).

In another mode of configuring the PF information, when the network side initiates the MBMS service statistics, the network side first determines the MBSFN area to which each MBMS service to be counted belongs, and performs all the MBMS services that need to be counted in each MBSFN area. Packets, in the MBSFN area, configure a common PF information for each group of all counted MBMS services. For example, in an MBSFN area, multiple MBMS services of the same type or similar types may be grouped into one group, and a common PF information is configured for the group of MBMS services. The same service types include: streaming media service, TV service, Download business and stock consulting business. Further, according to the MBMS service type classification given in the 3GPP standard organization, the following are: Download MBMS service (File download services), Streaming media class MBMS service (Streaming services), Carousel class MBMS service, and TV class MBMS service ( Television ( TV) Service ). The different MBMS services can be grouped into a group according to their respective service types, and a common PF information is configured for the same group of the MBMS services. The MBMS services of different service types can be configured with different PF information. Here, the scheduling period of different types of MBMS services, the service continuity requirements, and the receiving rate of services on the UE side are different. The MBMS services with the same or similar characteristics are grouped into one group, and the MBMS services of each group are considered. The specific characteristics of the configuration are more suitable for the PF information, which can make the feedback statistics process go smoothly, so that the configuration accuracy of the PF information is improved, thereby shortening the statistical period.

Another mode of the present invention is described below. On the basis of the above, there are some changes in the manner of grouping, such as grouping according to the state of the MBMS service. For example, in LTE, the current MBMS service status is divided into three types: The network side is transmitting. The MBMS service; the MBMS service to be sent by the network side; the MBMS service that has been sent by the network side. Here, an MBMS service state is added, and the state is: the network side sends the packet, but after the network side performs statistics on the MBMS service, it is found that the UE receiving state is poor (the number of UEs that are not received or received by the UE does not meet the requirements. The MBMS service, which is closed by the network side, is referred to herein as the MBMS service that is suspended for transmission. For the services in these four states, the network side needs to perform statistics on the UE side in order to achieve different requirements. Here, according to the present invention, one or more of the above states may be used as a classification criterion, and a common PF information may be allocated for each of the above MBMS service states.

In the same MBSFN area or in the MCCH, for all the MBMS services that are being sent, the network side sets a shared PF information in the MBSFN area to collect the receiving status on the UE side. Similarly, for all upcoming transmissions. The counted MBMS service, the network side sets a shared PF information in the MBSFN area to count the status that the UE is interested in receiving when the MBMS service is sent; likewise, for all the MBMS services that are counted after the end of the transmission, The network side sets a shared PF information in the MBSFN area to count the UE satisfaction status of the service during transmission. The network side can be used for suspended MBMS services. The reason why the UE does not receive is obtained by statistics. In the specific implementation, according to specific requirements, multiple states may be selected to simultaneously configure PF information or configure PF information for statistics. For example, if statistics are not required for the end of the MBMS service, the present invention passes the MBMS service being sent and The MBMS service is sent for grouping.

The main purpose of the MBMS service statistics being sent is to find out whether there is UE reception, the accuracy is very low, and the statistical period is relatively short, for example, several times of milliseconds. The initial configuration of the PF information needs to be relatively large, so as to ensure that the UE participates in the feedback in the first PF period, and the increment is also larger, for example, the jump level is increased. For the MBMS service that ends the transmission, the satisfaction survey is mainly carried out. The statistical period is relatively long, for example, ten minutes, the accuracy is very high, and the level of the whole statistics is relatively low, and only when the network resources are idle. In this way, the initial value of the PF information is set to be smaller, and the increment is smaller, for example, step by step. This is because the larger the value of the PF information, the larger the network resource is occupied. For the MBMS service to be sent, if the time from the time of transmission is long enough, the initial value of the PF information can be set smaller and the increment is smaller, for example, step by step, to complete the statistics, if the distance starts to be sent. It is relatively short, so the initial value of the PF information needs to be set relatively small, and the increment is relatively large, for example, the jump level is incremented. When the MBMS service is suspended, the network side can count the reasons for its unpopularity. The statistical period is relatively large. The initial value of the PF information can be set smaller and the increment is smaller, for example, step by step to complete the statistics.

Example 1

In the LTE system, the high-level decision determines the statistics of the receiving status of the three MBMS services in the area. The specific implementation process is shown in Figure 2.

Step S201: The network side determines the MBSFN area to which the three MBMS services to be counted belong, and assumes that two of the three MBMS services belong to the MBSFN area 1 and the other MBMS service belongs to the MBSFN area 2.

Step S202: The network side configures statistics for two MBMS services belonging to the MBSFN area 1. Information, and configure a common PF information for the two statistical MBMS services.

In step S203, the MBMS service of the packet and the PF information corresponding to each group of MBMS services are carried in the MCCH corresponding to the MBSFN area.

Step S204: Specifically, the MCE sends the MCCH to all related base stations of the MBSFN area 1, and the related base station sends MBMS service statistics information and PF information to the UE. Further, the base station may send the MBMS statistics information and the PF information to the UE through the MCCH of the MBSFN area 1, and the MCE sends the MBMS statistics information and the PF information to the base station through the M2 interface.

The same operation is for the statistical MBMS service belonging to the MBSFN area 2.

Example 2

In the LTE system, the upper layer determines the statistics on the receiving status of multiple MBMS services in the area. The specific implementation process is shown in Figure 3.

First, the S301 network side determines the MBSFN area to which the MBMS services to be counted belong respectively. Here, 4 of the plurality of MBMS services belong to the MBSFN area 1 and 3 MBMS services belong to the MBSFN area 2.

Further, the S302 network side groups the MBMS services that need to be counted in each MBSFN area, where the MBMS service types are grouped, for example, the streaming media services are grouped into one group, and the stock consulting services are grouped into one group. The download business is divided into a group, and the TV business is divided into a group. The principle of grouping is based on the type of MBMS service. In the specific implementation, the types of services can be similar or grouped, and there is no strict restriction here. However, in general, MBMS services with the same or similar service types are grouped together, which will increase the efficiency of the entire statistical process.

It is assumed that the four services in the MBSFN area 1 are divided into two groups. In S303, the network side needs to configure the shared PF information for the two groups of MBMS services of the MBSFN area 1. S304 carries the MBMS service of the packet and the PF information corresponding to each group of MBMS services to The MBSFN area corresponds to the MCCH. S305 is specifically configured to send, by the MCE, the MCCH to all related base stations of the MBSFN area 1, and the related base station sends the PF information to the UE. Further, the base station may send the PF information to the UE through the MCCH of the MBSFN area 1, and the MCE sends the PF information to the base station through the M2 interface.

Example 3

In the LTE system, the upper layer determines the statistics on the receiving status of multiple MBMS services in the area. The specific implementation process is shown in Figure 3. .

Further, the S302 network side groups the MBMS services that need to be counted in each MBSFN area, where the MBMS service status is grouped according to the plurality of MBMS service status, and the (continuous) MBMS services that are sent by the network side are grouped into a group. The non-ongoing MBMS services to be sent are grouped into one group, and the MBMS services that are terminated by the network side are grouped into one group, and the MBMS services that are suspended for transmission are grouped into one group. Then configure a common PF information for each group. Further, the PF information is sent to the UE through the MCCH of the MBSFN area to which the MBMS service group belongs, for example, in the MCCH of the MBSFN area to which the MBMS service group belongs, which is a group of together and a group. The non-ongoing statistic MBMS services are respectively configured with a common PF information, and the two are simultaneously sent to the UE, and may be separately configured and sent to the UE in the MCCH. The PF information of each group may be configured to be sent to the UE in the MCCH, and the PF information may be separately sent to the UE in the MCCH. In this way, according to the different service states, the required statistical purposes are different, and more suitable PF information can be configured, so that the impact on system resource usage is minimized. It is assumed that the four services in the MBSFN area 1 are divided into two groups. In S303, the network side needs to configure the shared PF information for the two groups of MBMS services of the MBSFN area 1. S304: The MBMS service of the packet and the PF information corresponding to each group of the MBMS service are carried in the MCCH corresponding to the MBSFN area. S305 is specifically configured to send, by the MCE, the MCCH to all related base stations of the MBSFN area 1, and the related base station sends the PF information to the UE. Further, the base station may send the PF information to the UE through the MCCH of the MBSFN area 1, and the MCE sends the PF information to the base station through the M2 interface.

Example 4

The present invention provides a configuration system for an MBMS service access probability factor, and its structure is as shown in FIG. 4. The system includes a statistics module 401 and a configuration module 402. The statistic module 401 collects the MBSFN area to which the MBMS service belongs, saves the statistics, and sends the statistics to the configuration module 402. The configuration module 401 performs the grouping of the MBMS services according to the statistical information, and the packets may be grouped into one or a group of MBSFN areas or the MBMS services of the same or similar service types in one MBSFN area. Or a group of MBMS services with the same or similar service status in an MBSFN area; then, the PF information of the MBMS service of the group is configured, and the PF information is a PF shared by a group of MBMS services. information.

Example 5

This embodiment provides a bearer system for an MBMS service access probability factor, and its structure is as shown in FIG. 5. The system includes a bearer module 501 and a sending module 502. In the bearer module 501, the shared PF information of the statistic MBMS service and each group of the MBMS services in the one or more sets of different states is simultaneously carried in the MCCH corresponding to the MBSFN area, and then the MCCH is simultaneously or separately sent by the sending module 502. Send to the UE. The one or more sets of different states are one or more of the following states: an MBMS service being sent, an MBMS service to be sent, End the transmitted MBMS service and suspend the transmission of the MBMS service.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be accomplished by instructions to the associated hardware, which may be stored in a computer readable storage medium, 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 in the above embodiment may be implemented in the form of hardware or in the form of a software function module. The invention is not limited to any particular form of hardware or software combination.

It is a matter of course that the invention can be embodied in various other forms without departing from the spirit and scope of the invention. Industrial applicability

The present invention simplifies the MBMS service statistics process in the LTE system, and can combine the statistical requirements of different services to optimize the configuration of the PF information.

Claims

Claim

A method for configuring an access probability factor of an MBMS service, comprising: determining, by the network side, a MBSFN area of a multimedia broadcast multicast service single frequency network to which each of the MBMSs that are counted by the MBMS is counted, and for each All the MBMS services in the MBSFN area are configured with a common access probability factor PF information, or all the MBMS services in the MBSFN area are grouped, and each group is grouped in the MBSFN area. The statistical MBMS service configures a shared PF information.

2. The method according to claim 1, wherein the method for grouping all the statistical MBMS services in each MBSFN area is:

The MBMS services that are counted in each MBSFN area are grouped according to the service type; or, the statistical MBMS services in each MBSFN area are grouped according to the service status.

The method according to claim 2, wherein when the grouping according to the service status, the method specifically includes one or more of the following states: an MBMS service being sent, an MBMS service to be sent, an MBMS service ending to be sent, Suspend the sending of the MBMS service.

4. The method according to claim 2, wherein when the grouping according to the service type, the method specifically comprises one or more of the following types: downloading MBMS service, streaming media MBMS service, Carousel class MBMS service, and television class. MBMS business.

A method for carrying an MBMS service access probability factor, wherein the network side simultaneously carries one or more sets of statistical MBMS services and groups of MBMS services in different multicast control channels MCCH corresponding to the MBSFN area. Shared PF information.

6. The method according to claim 5, wherein the one or more different states are one or more of the following: an MBMS service being sent, an MBMS service to be sent, and an MBMS service ending in transmission. , suspend the transmission of MBMS services.

7. A system for configuring an access probability factor of an MBMS service, characterized in that: a statistics module, configured to collect MBSFN areas to which the MBMS services belong, and save statistics information of the MBMS service;

And a configuration module, configured to configure, according to the saved statistics of the MBMS service, a common PF information for the MBMS service.

8. The system of claim 7, wherein

The configuration module is further configured to group the MBMS services, set the MBMS service in an MBSFN area as a group, and configure PF information; or, group the MBMS services in an MBSFN area, the MBMS The service group includes grouping according to the MBMS service type and grouping according to the MBMS service status, and configuring the PF information;

9. The system of claim 8 wherein

The service type packet includes at least one of the following contents: a download class MBMS service, a streaming media class MBMS service, a Carousel class MBMS service, and a television class MBMS service;

The service status packet includes at least one of the following: an MBMS service being transmitted, an MBMS service to be transmitted, an MBMS service ending transmission, and an MBMS service suspended.

A bearer system for an MBMS service access probability factor, comprising: a bearer module, configured to simultaneously carry one or more sets of shared MBMS services of different states and shared PF information of each group of MBMS services The MCCH corresponding to the MBSFN area;

a sending module, configured to send the MCCH to the UE simultaneously or separately;

The one or more sets of different states are one or more of the following states: being sent

The MBMS service, the MBMS service to be sent, the MBMS service that ends the transmission, and the MBMS service that is suspended.