CN101166350A - Method for radio network controller to establish radio bearer for mobile terminal - Google Patents

Abstract

The present invention aims to provide a method for a radio network controller to establish a radio bearer for a mobile terminal. Including: a. configuring a same network service access point identifier, namely NSAPI ID, and a same radio access bearer identifier, namely RAB ID, for each P-T-P radio bearer; or, b. configuring each P-T-P radio bearer All T-P radio bearers are configured with the same NSAPI ID and different RAB IDs; or, c. a different NSAPI ID and a corresponding RAB ID are configured for each P-T-P radio bearer. According to the method provided by the invention, the RNC can obtain the corresponding relationship between each P-T-P radio bearer and the RAB, and the RNC can simultaneously establish multiple P-T-P radio bearers for selected services for a UE.

Description

Method for radio network controller to establish radio bearer for mobile terminal

technical field

The present invention relates to the field of mobile communication, especially in a code division multiple access (CDMA) system, a radio network controller (RNC, Radio network controller) obtains a radio access bearer (RAB, Radio Access Bearer) of a selected service (selected service) ), and establish a point-to-point radio bearer method for selecting services for each mobile terminal (UE).

Background technique

With the popularization of large-screen multifunctional mobile phones, the application of mobile data services is becoming more and more extensive. The demand for mobile communications is no longer satisfied with phone calls, messaging and mobile Internet browsing services. Due to the rapid development of the Internet, a large number of multimedia services have emerged . Various high-bandwidth multimedia services such as video conferencing, TV broadcasting, video-on-demand, advertisements, online education, and interactive games continue to emerge. On the one hand, they meet the ever-increasing service demands of mobile users, and at the same time, they bring new business growth to mobile operators. point. These mobile multimedia services require multiple users to receive the same data at the same time. Compared with general data, they have the characteristics of large data volume, long duration, and delay sensitivity. The current IP multicast technology is only applicable to wired IP networks, but not to mobile networks, because mobile networks have specific network structures, functional entities and wireless interfaces, which are different from wired IP networks.

In order to effectively utilize mobile network resources, 3GPP proposed Multimedia Broadcast and Multicast Service (MBMS, Multimedia Broadcast Multicast Service), which provides a point-to-multipoint service in which a data source sends data to multiple users in a mobile network, and realizes network resources Share and improve the utilization of network resources, especially the precious air interface resources. MBMS service is a technology that shares network resources to transmit data from one data source to multiple destinations. MBMS defined by 3GPP can not only realize plain text low-rate message multicast and broadcast, but also realize multicast of high-speed multimedia services and broadcasting, providing a variety of rich video, audio and multimedia services, which undoubtedly conforms to the trend of future mobile data development and provides better business prospects for the development of 3G.

MBMS services include: multicast service (Multicast Service) and broadcast service (Broadcast Service). Each multicast service requires the Joining process. The user (UE) needs to go to the BM-SC (Broadcast-Multicast Service Center) to activate a certain multicast service. For each broadcast service, the UE only needs to It needs to be activated locally. In the wireless bearer configuration, multicast services can use P-T-M (point-to-multipoint, also can be abbreviated as PTM or ptm) and P-T-P (point-to-point, can also be abbreviated as PTP or ptp) bearer types, while broadcast services can only use P-T-M.

An important type of application business based on MBMS technology is mobile TV (MobileTV over MBMS), also known as mobile TV, which can also include other similar services in essence, such as: music on mobile phones, stocks on mobile phones, etc. Therefore, in this In the invention, for convenience of description, mobile TV and (mobile) TV channel are used to refer to this type of MBMS service in general. In order to better implement Mobile TV over MBMS services on mobile phones, some improvements have been made to the current 3GPP specifications, mainly to solve: when mobile phone users switch between different TV channels, it can reduce switching delay and service activation time of different channels .

For this reason, as shown in Figure 1, in the current 3GPP specification, MBMS services are further divided into two service types (Multicast Service Type and Broadcast Service Type), and two distribution modes (Multicast mode and Broadcast mode). In the present invention, all MBMS service types possessing the characteristics of Multicast Service Type and Broadcast Mode Type are represented by selected service, which is called selected service, and is also generally referred to as mobile TV, and each selected service, that is, each (mobile) TV Channels are identified by a selected service ID. The mobile TV service does not need the Joining (joining) process, only needs local activation, and has P-T-P and P-T-M wireless bearer modes.

As shown in Figure 2, by receiving the MBMS Service Announcement (MBMSService Announcement) from the network side, the user can choose which MBMS services are interested in, if it is a multicast service (Multicast Service), the user will go through the subsequent Joining join the business. For multicast services, when a user joins an MBMS service, the UE sends the NSAPI ID (Network Service Access Point Identifier ID, Network Service Access Point Identifier) assigned by itself and corresponding to this service to the CN (core network) side through the activation process . If a UE in idle mode or CELL_PCH, CELL_FACH, URA_PCH responds to counting (MBMS counting) or responds to a ptp bearer establishment request (MBMS ptp radio bearer request), it will establish an RRC connection or cell update, and then the UE sends a service request message (Service Request) To CN, establish Iu connection. After the UE establishes the Iu connection on the Iu interface, through the UE Linking process on the Iu interface, the CN sends the PtP RAB IDs corresponding to all the MBMS services that the UE has joined to the RNC, each PtP RAB ID and one MBMS Service ID correspondence, each PtP RAB ID corresponds to each NSAPI ID of the UE. Therefore, for the Service ID of the multicast service joined by a certain user, the UE side allocates an NSAPI ID and the corresponding RAB ID, and at the same time, the CN also obtains the same NSAPI ID and RAB ID of the UE.

On the Iu interface, the CN sends the relevant information of an MBMS service to the RNC through the Session Start message, including the RAB parameters corresponding to the MBMS service. The RAB parameters include the service type, maximum data rate, guaranteed data rate, etc. It is used for the RNC to subsequently establish a radio bearer (Radio Bearer). For multicast services, the RNC passes through the counting process. If a multicast service is carried as PtM, the RNC sends "MBMS COMMON P-T-M RBINFORMATION" and "MBMS current cell point information" on the MCCH. Multipoint Radio Bearer Information (MBMS CURRENT P-T-M RB INFORMATION), the message includes the Service ID of the multicast service, radio bearer configuration information, transmission channel configuration information, and physical channel configuration information. UEs that have joined this service can According to the configuration information included in the received message, receive this MBMS multicast service on the public channel; if the RNC decides to carry this multicast service as PtP through counting, the RNC can use each For the RAB ID of the MBMS service ID, the UE further establishes an RB (radio bearer) of the UE.

The current problem is: for the selection service (also known as mobile TV), in order to shorten the activation time of each mobile TV channel switching, the joining process is canceled in the protocol, and the CN side cannot obtain the information reported by the UE and each mobile TV channel (selected service ID) corresponding to the NSAPI ID, there is no UE linking process on the Iu interface, and the RNC cannot obtain the RAB ID corresponding to each mobile TV channel (selected service ID) from the CN. In this way, when the UE locally activates a TV channel, the RNC cannot obtain the RAB ID for the selected service ID of the UE. If the RNC decides to establish the service of the selected service ID on the P-T-M bearer according to the counting process, the RNC will The service is established on a common channel, and does not require the RAB ID of each UE; if the RNC decides to establish the service of the selected service ID on the P-T-P bearer according to the counting process, the RNC cannot obtain the corresponding RAB ID of each UE, and cannot establish a dedicated service ID. bearer. In short, according to the current protocol, because the RNC does not know the RAB IDs of each UE (one RAB ID corresponds to one selected service ID), mobile TV can only be transmitted by ptm and carried on a public channel, which cannot meet the requirements for Effective use of air interface resources to allow mobile TV bearer requirements for P-T-P and P-T-M.

Contents of the invention

The purpose of the present invention is to provide a method for a radio network controller to establish a radio bearer for a mobile terminal, obtain the RAB identifier through the radio network controller, and establish several P-T-P radio bearers for the mobile terminal to select services, which solves the problem of the current 3GPP protocol Due to the lack of RAB identification sending mechanism in related messages and procedures, the radio network controller cannot establish a P-T-P radio bearer for the selected service.

The present invention adopts following technical scheme:

A method for a radio network controller to establish a radio bearer for a mobile terminal. When the network side establishes one or more point-to-point or P-T-P radio bearers of a selected service for a certain mobile terminal, that is, a UE, the method includes: a. Each P-T-P radio bearer is configured with the same network service access point identifier, that is, NSAPI ID, and the same radio access bearer identifier, that is, RAB ID; or, b. Configure each P-T-P radio bearer with the same NSAPI ID and a different or, c. Configure a different NSAPI ID and a corresponding RAB ID for each P-T-P radio bearer.

Further, when the network side establishes several P-T-P radio bearers for selected services for a UE, a same NSAPI ID and a same RAB ID are configured for each P-T-P radio bearer, including:

a1. Each P-T-P radio bearer of the selected service is configured with the same NSAPI ID and the same RAB ID by the radio network controller (RNC);

a2.RNC configures a same RAB ID for each selected service;

a3. When the RNC establishes one or more P-T-P radio bearers of selected services for a certain UE, the same RAB ID is included in each P-T-P radio bearer; and each P-T-P radio bearer includes a selected service identifier. selected service ID, the selected service IDs are different and each corresponds to a P-T-P radio bearer;

a4. After receiving the radio bearer establishment request message from the RNC, that is, RB SETUPREQUEST, the UE establishes different P-T-P radio bearers according to the selected service ID of each selected service.

Further, the NSAPI ID and RAB ID mentioned in a1 generally refer to the type of selected business, rather than a specific selected business; that is, each selected business uses the NSAPI ID and the RAB ID.

Further, in a1, the NSAPI ID and RAB ID are fixed values known by the UE and the network side.

Further, in a2, the RAB ID is statically configured in the RNC, or sent to the RNC from the core network, that is, the CN.

Further, when the network side establishes several P-T-P radio bearers for selected services for a UE, a same NSAPI ID and a different RAB ID are configured for each P-T-P radio bearer, including:

b1. CN configures a same NSAPIID for each P-T-P radio bearer of the selected service;

b2. The RNC configures a different RABID for each P-T-P radio bearer of the selected service, and these RAB IDs correspond to the NSAPI ID;

b3. After receiving the radio bearer establishment request message from the RNC, that is, RB SETUPREQUEST, the UE establishes different P-T-P radio bearers according to the selected service ID of each selected service.

Further, in b1, the NSAPI ID generally refers to the selected service type, rather than a specific selected service; that is, each selected service uses the NSAPI ID.

Further, in b1, the NSAPI ID is a fixed parameter value known by the UE and the network side, and is only used to identify the selected service type.

Further, when the network side establishes several P-T-P radio bearers for selected services for a UE, a different NSAPI ID and a corresponding RAB ID are configured for each P-T-P radio bearer, including:

c1.CN configures a different NSAPIID for each P-T-P radio bearer of the selected service;

c2.CN obtains several RAB IDs according to the one-to-one mapping relationship between NSAPI ID and RAB ID, and sends them to the RNC through the signaling message of the Iu interface;

c3.RNC obtains the RAB ID of the P-T-P radio bearer of each selected service;

c4. When the RNC establishes one or more P-T-P radio bearers for selected services for a certain UE, configure a different RAB ID for each P-T-P radio bearer;

c5. After receiving the radio bearer establishment request message from the RNC, that is, RB SETUPREQUEST, the UE establishes different P-T-P radio bearers according to the RAB ID of each selected service.

Compared with the prior art, according to the method provided by the present invention, the RNC can obtain the corresponding relationship between each P-T-P radio bearer and RAB, and the RNC can simultaneously establish multiple P-T-P radio bearers for selected services for one UE.

Description of drawings

FIG. 1 is a schematic diagram of a protocol architecture in which MBMS services and bearers are separated in the prior art;

Fig. 2 is a schematic diagram of the corresponding relationship between mobile user NSAPI ID, RB ID and RAB ID in the prior art;

Fig. 3 is a schematic diagram of configuring a same NSAPI ID and a same RAB ID for each P-T-P radio bearer in Embodiment 1 of the present invention;

Fig. 4 is a schematic diagram of configuring a same NSAPI ID and a different RAB ID for each P-T-P radio bearer in Embodiment 2 of the present invention;

FIG. 5 is a schematic diagram of each P-T-P radio bearer configured with a different NSAPI ID and its corresponding RAB ID in Embodiment 3 of the present invention.

Detailed ways

The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

Specific embodiment one: (with reference to Fig. 3)

When the network side establishes one or more P-T-P radio bearers for selected services for a certain UE, configure one identical NSAPI ID and one identical RAB ID for each P-T-P radio bearer. The specific method is as follows:

(1) In the core network, configure a same NSAPI ID (NSAPI ID) for each selected service;

This NSAPI ID generally refers to the type of selection service, not to a specific selection service; or each selection service (each TV channel) uses this NSAPI ID;

This NSAPI ID is a fixed value known by the UE and the network side, and is only used to identify the selected service.

(2) In the RNC, an identical RAB identification (RAB ID) is also configured for each selected service, and this RAB identification can be statically configured in the RNC; it can also be sent from the CN to the RNC;

There is a one-to-one correspondence between the RAB identifier and the fixed NSAPI identifier, which is a fixed value known by the UE and the network side, and is only used to identify the selected service;

This RAB ID refers to the type of selected service, not to a specific selected service (ie: a certain TV channel); or each selected service (each TV channel) uses this RAB ID;

If the RAB ID is sent from the CN to the RNC, the CN is identified by its fixed NSAPI, and according to the one-to-one mapping relationship between the RAB ID and the fixed NSAPI ID, the RAB ID is obtained and sent to the RNC through the signaling message of the Iu interface middle;

(3) When the RNC establishes one or more P-T-P radio bearers of selected services for a certain UE, it configures the same RAB ID for each P-T-P radio bearer; and includes a different selected service ID (selected service ID );

Each P-T-P radio bearer includes a selected service ID, which is different, and each selected service ID corresponds to a P-T-P radio bearer;

(4) After receiving the RB SETUP REQUEST (radio bearer establishment request message) from the RNC, the UE establishes different P-T-P radio bearers according to the selected service ID of each selected service.

Specific embodiment two: (with reference to Fig. 4)

When the network side establishes one or more P-T-P radio bearers of selected services for a certain UE, configure one same NSAPI ID and different RABID for each P-T-P radio bearer. The specific method is as follows:

(1) CN configures a same NSAPI ID for each P-T-P radio bearer of the selected service;

This NSAPI ID generally refers to the type of selection service, not to a specific selection service; or each selection service (each TV channel) can use this NSAPI ID;

This NSAPI ID is a fixed parameter value known by the UE and the network side, and is only used to identify the selected service type;

(2) The RNC configures a different RAB ID for each P-T-P radio bearer of the selected service, and these RAB IDs correspond to an NSAPI ID.

That is to say, when one or more P-T-P radio bearers of selected services are established for a certain UE, each P-T-P radio bearer is configured with one same NSAPI ID and one different RAB ID.

(3) After receiving the RB SETUP REQUEST (radio bearer establishment request message) from the RNC, the UE establishes different P-T-P radio bearers according to the selected service ID of each selected service.

Specific embodiment three: (with reference to Fig. 5)

When the network side establishes one or more P-T-P radio bearers of selected services for a certain UE, a different NSAPI ID and a corresponding RAB ID are configured for each P-T-P radio bearer. The specific method is as follows:

(1) CN configures a different NSAPI ID for each P-T-P radio bearer of the selected service;

(2) CN obtains several RAB IDs according to the one-to-one mapping relation of NSAPI ID and RAB ID, and sends in the RNC by the signaling message of Iu interface;

(3) RNC obtains the RAB ID of the P-T-P radio bearer of each selected service;

(4) When the RNC establishes one or more P-T-P radio bearers for selected services for a certain UE, a different RAB ID is configured for each P-T-P radio bearer.

(5) After receiving the RB SETUP REQUEST (radio bearer establishment request message) from the RNC, the UE establishes different P-T-P radio bearers according to the RAB ID of each selected service.

Of course, the present invention can also have other various embodiments, and those skilled in the art can make various corresponding changes and deformations according to the present invention without departing from the spirit and essence of the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (9)

1. a radio network controller is the method that portable terminal is set up radio bearer, network side for certain portable terminal be UE to set up one or more selection business be the point-to-point of selected service when being the P-T-P radio bearer, comprising:

A. be that NSAPI ID is RAB ID with an identical wireless access bearing sign for each P-T-P radio bearer all disposes an identical Network Service Access Point Identifier;

Perhaps, b. disposes an identical NSAPI ID and different RAB ID for each P-T-P radio bearer;

Perhaps, c. disposes a different NSAPI ID and a corresponding RAB ID thereof for each P-T-P radio bearer.

2. method according to claim 1, it is characterized in that further, network side is that a UE is when setting up several and selecting professional P-T-P radio bearers, for each P-T-P radio bearer all disposes a RAB ID that identical NSAPI ID is identical with, comprising:

A1. the professional P-T-P radio bearer of each selection is RAB ID that identical NSAPI ID is identical with of RNC configuration by radio network controller all;

A2.RNC selects the professional identical RAB ID that disposes for each;

When a3.RNC selects professional P-T-P radio bearer for certain UE sets up one or more, in each P-T-P radio bearer, all comprise the RAB ID that this is identical; And comprise all in each P-T-P radio bearer that selecting service identification for one is selected service ID, described selected service ID has nothing in common with each other and corresponding separately P-T-P radio bearer;

A4.UE selects professional selected service ID according to each after receiving and setting up request message and be RB SETUPREQUEST from the radio bearer of RNC, sets up different P-T-P radio bearers.

3. method according to claim 2 is characterized in that, further, NSAPIID described in the a1 and RAB ID general reference are selected type of service, but not refers to that certain concrete selection is professional; Be that each selection business is all used this NSAPI ID and this RAB ID.

4. according to claim 2 or 3 described methods, it is characterized in that further, among the a1, described NSAPI ID and RAB ID are the known fixed values of UE and network side.

5. method according to claim 2 is characterized in that, further, among the a2, described RAB ID is configured among the RNC statically, perhaps, is that CN sends to the RNC from core net.

6. method according to claim 1, it is characterized in that: further, network side is a UE when setting up several and selecting professional P-T-P radio bearers, for each P-T-P radio bearer all disposes an identical NSAPI ID and different RAB ID, comprising:

B1.CN selects professional identical NSAPI ID of P-T-P radio bearer configuration for each;

B2.RNC selects professional 1 different RAB ID of P-T-P radio bearer configuration for each, and these RAB ID are corresponding to described NSAPI ID;

B3.UE selects professional selected service ID according to each after receiving and setting up request message and be RB SETUPREQUEST from the radio bearer of RNC, sets up different P-T-P radio bearers.

7. method according to claim 6 is characterized in that: further, among the b1, described NSAPI ID general reference is selected type of service, but not refers to that certain concrete selection is professional; Be that each selection business is all used this NSAPI ID.

8. according to claim 6 or 7 described methods, it is characterized in that: further, among the b1, described NSAPI ID is the known fixing parameter value of UE and network side, only is used for sign and selects type of service.

9. method according to claim 1, it is characterized in that: further, network side is a UE when setting up several and selecting professional P-T-P radio bearers, for each P-T-P radio bearer all disposes a different NSAPI ID and a corresponding RAB ID thereof, comprising:

C1.CN selects professional different NSAPI ID of P-T-P radio bearer configuration for each;

C2.CN obtains several RAB ID according to the mapping relations one by one of NSAPI ID and RAB ID, and sends among the RNC by the signaling message of Iu interface;

C3.RNC obtains each RAB ID that selects professional P-T-P radio bearer;

When c4.RNC selects professional P-T-P radio bearer for certain UE sets up one or more, be different RAB ID of each P-T-P radio bearer configuration;

C5.UE selects professional RAB ID according to each after receiving and setting up request message and be RB SETUPREQUEST from the radio bearer of RNC, sets up different P-T-P radio bearers.

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