CN102111848B - Method, system and device for wireless bearing bandwidth information notification - Google Patents

Abstract

The invention discloses a method for notifying wireless bearer bandwidth information. Including: receiving the update PDP context request message sent by the GPRS service support node SGSN after the radio bearer bandwidth information changes; obtaining the address information of the service server recorded in the PDP context according to the update PDP context request message; searching for the radio bearer bandwidth information notification according to the address information The link table sends the updated radio bearer bandwidth information in the PDP context to the service server according to the radio bearer bandwidth information notification link corresponding to the address information in the radio bearer bandwidth information notification link table. At the same time, the invention also discloses a system and device for notification of wireless bearer bandwidth information. Realize notifying the service server of the changed radio bearer bandwidth information.

Description

Method, system and device for wireless bearer bandwidth information notification

technical field

The present invention relates to the communication field, in particular to a method, system and device for notifying wireless bearer bandwidth information.

Background technique

The mobile streaming media service is based on heterogeneous wired-wireless (Wired-Wireless) links, and its network environment is more complex than the traditional fixed network streaming media service, and the network bandwidth is easy to change. The use environment of the terminal changes frequently, and the wireless communication between the base stations of the GSM Radio Access Network (GERAN) or Universal Terrestrial Radio Access Network (UTRAN) that supports Enhanced Global Evolution (EDGE) modulation technology Therefore, the quality of the transmission channel is constantly affected, such as the signal is interfered, the propagation path is blocked, and so on.

In multimedia services, media information is coded at a certain bit rate. During service use, if the transmission bandwidth of the wireless transmission channel changes, the service server cannot know the wireless bearer bandwidth information on the client side. As a result, the service and encoding rate do not match the transmission bandwidth. How to timely notify the service server of the wireless bearer bandwidth information during the streaming media service process is an urgent problem to be solved.

Contents of the invention

Based on this, in order to enable the streaming media service server side to know the radio bearer bandwidth information in time. An embodiment of the present invention provides a method for notifying wireless bearer bandwidth information, including:

Create a PDP context according to the connection established between the client and the service server;

If the radio bearer bandwidth information in the PDP context changes, receiving an update PDP context request message sent by the GPRS service support node SGSN;

Obtaining the address information of the service server recorded in the PDP context according to the update PDP context request message;

Searching the radio bearer bandwidth information notification link table according to the address information, the radio bearer bandwidth information notification link table at least including the correspondence between the service server address information and the radio bearer bandwidth information notification link;

Sending the changed radio bearer bandwidth information carried in the update PDP context request message to the service server according to the radio bearer bandwidth information notification link corresponding to the address information in the radio bearer bandwidth information notification link table.

At the same time, an embodiment of the present invention provides a system for notifying wireless bearer bandwidth information, including:

The gateway GPRS service support node GGSN is used to create a PDP context according to the connection established between the client and the service server, and if the radio bearer bandwidth information in the PDP context changes, receive the update PDP context request sent by the GPRS service support node SGSN message, obtain the address information of the service server recorded in the PDP context according to the update PDP context request message, search the radio bearer bandwidth information notification link table according to the address information, and the radio bearer bandwidth information notification link table is at least including the correspondence between the service server address information and the radio bearer bandwidth information notification link, and sending the update to the service server according to the radio bearer bandwidth information notification link corresponding to the address information in the radio bearer bandwidth information notification link table The changed radio bearer bandwidth information carried in the PDP context request message.

The GPRS service support node SGSN, if the radio bearer bandwidth information in the PDP context changes, sends an update PDP context request message to the GGSN.

In addition, an embodiment of the present invention also provides an apparatus for notifying radio bearer bandwidth information, including:

The creating module is used to create a PDP context according to the connection established between the client and the service server; the receiving module is used to receive the updated PDP context sent by the GPRS service support node SGSN if the radio bearer bandwidth information in the PDP context changes. A request message; an acquisition module, configured to obtain the address information of the service server recorded in the PDP context according to the update PDP context request message; a query module, configured to search the radio bearer bandwidth information notification link table according to the address information The radio bearer bandwidth information notification link table at least includes the correspondence between the service server address information and the radio bearer bandwidth information notification link; the notification module is configured to correspond to the address information in the radio bearer bandwidth information notification link table. The radio bearer bandwidth information notification link sends the changed radio bearer bandwidth information carried in the update PDP context request message to the service server.

In the embodiment of the present invention, during the streaming media transmission process, since the link of the wireless bearer bandwidth information notification is established, the wireless bearer bandwidth information notification can be sent to the service server in time.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is a network architecture diagram of an embodiment of a system for transmitting multimedia messages according to the present invention;

FIG. 2 is a flowchart of an embodiment of a method for notifying radio bearer bandwidth information according to the present invention;

FIG. 3 is a flowchart of another embodiment of a method for notifying radio bearer bandwidth information according to the present invention;

FIG. 4 is a schematic structural diagram of an embodiment of a system for notifying radio bearer bandwidth information according to the present invention;

FIG. 5 is a schematic structural diagram of another embodiment of a system for notifying radio bearer bandwidth information according to the present invention;

FIG. 6 is a schematic structural diagram of an embodiment of a device for notifying radio bearer bandwidth information according to the present invention;

FIG. 7 is a schematic structural diagram of another embodiment of an apparatus for notifying radio bearer bandwidth information according to the present invention.

FIG. 8 is a schematic structural diagram of another embodiment of an apparatus for notifying radio bearer bandwidth information according to the present invention.

FIG. 9 is a schematic structural diagram of another embodiment of an apparatus for notifying radio bearer bandwidth information according to the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1, the embodiment of the present invention provides a network architecture diagram of a system for transmitting multimedia messages, including: client, radio access network (Radio Access Network, RAN), equipment SGSN and GGSN, IP network and service server. Wherein, the client may be a mobile terminal, such as a mobile phone, a portable computer, a personal digital assistant, a digital photo frame, etc. or a fixed terminal; it may also be a device such as a gateway. The service server may be a streaming media service server.

The embodiment of the present invention can also be applied to wireless high-fidelity network (Wireless Fidelity, WIFI), fixed IP network, global microwave interconnection access (Worldwide Interoperability for Microwave Access, WIMAX), fixed IP network, or other third-generation mobile communication networks In networks with mixed wireless and wired architectures such as long-term evolution (Long Time Evolution, LTE) mobile communication networks, it is true that the names of devices that may be involved in different networks are somewhat different.

Please refer to FIG. 2, the embodiment of the present invention provides a method for notification of radio bearer bandwidth information, the method includes steps:

On the packet service (GPRS) of the mobile network carried by the Packet Switching Service (PSS), the user terminal accesses the service server (portal server, media server) activates the packet service and establishes a connection with the service server. When the packet service is established, the GGSN establishes the PDP context of this service. The PDP context records the Quality of Service (QoS) information of the radio bearer and the core network. The PDP context includes the following fields in Table 1:

Table 1

Among them, the Tunnel Endpoint ID (TEID) field in the PDP context uniquely identifies the packet service, and the QoS field carries the current wireless bearer bandwidth information during the packet service session.

Step 202, receiving an update PDP context request message sent by the GPRS service support node SGSN after the radio bearer bandwidth information changes.

Specifically, the SGSN detects that the radio bearer bandwidth information changes, and sends a radio bearer bandwidth information update Update PDP Context request message to the GGSN. The GGSN receives the radio bearer bandwidth information update Update PDP Context request message sent by the SGSN.

Step 204, obtain the address information of the service server recorded in the PDP context according to the update PDP context request message.

In the embodiment of the present invention, the field of server address information Destination IP Address is added in the PDP context. Multiple Destination IPAddress fields can be set, so that after a packet service is established, the user terminal can access multiple service servers. The GGSN obtains the address information of the service server recorded in the PDP context according to the Update PDP Context request message.

Step 206: Search the radio bearer bandwidth information notification link table according to the address information, the radio bearer bandwidth information notification link table at least includes the correspondence between the service server address information and the radio bearer bandwidth information notification link.

Optionally, the GGSN pre-establishes a radio bearer bandwidth information notification link table. specific,

GGSN can modify configuration files, or configure parameters through the maintenance system of GGSN. The configured parameter may be the address information of the service server. If there are multiple service servers in the service system that need to be notified of the wireless bearer bandwidth information, multiple server address information is configured. The GGSN establishes a radio bearer bandwidth information notification link table according to the configured service server address.

The radio bearer bandwidth information notification link table at least includes the correspondence between the service server address information and the radio bearer bandwidth information notification link, and the radio bearer bandwidth information notification link may be a general channel or a dedicated channel for radio bandwidth information notification. As in Table 2:

Business server address information 1 Wireless Bearer Bandwidth Information Notification Link 1 Business server address information 2 Wireless Bearer Bandwidth Information Notification Link 2

Table 2

In the PSS system, the streaming media server needs to adjust the media code rate sent to the user terminal according to the wireless bearer bandwidth information. The portal server does not need it, so the GGSN does not need to configure the address of the portal server.

The GGSN searches the pre-established radio bearer bandwidth information notification link table according to the recorded address information of the service server, and obtains the radio bearer bandwidth information notification link corresponding to the service server address information.

Step 208: Send the updated radio bearer bandwidth information in the PDP context to the service server according to the radio bearer bandwidth information notification link corresponding to the address information in the radio bearer bandwidth information notification link table.

The GGSN updates the PDP context according to the update PDP context request message sent by the SGSN. Wherein, the GGSN updates the radio bearer bandwidth information during the process of updating the PDP context, that is, updates the original radio bearer bandwidth information to the changed radio bearer bandwidth information. The GGSN sends the updated radio bearer bandwidth information in the PDP context to the service server according to the searched radio bearer bandwidth information notification link, and the radio bearer bandwidth information is the changed radio bearer bandwidth information.

In the embodiment of the present invention, during the streaming media transmission process, since the link of the wireless bearer bandwidth information notification is established, the wireless bearer bandwidth information notification can be sent to the service server in time.

Please refer to FIG. 3, the embodiment of the present invention provides a method for notifying radio bearer bandwidth information, including:

Step 300, create a PDP context according to the connection established between the client and the service server.

Step 302, judging whether the service server needs to receive the radio bearer bandwidth information notification. If the judgment is yes, execute step 304; otherwise, the process ends.

The radio bearer bandwidth information notification link table may be pre-established by the GGSN. specific,

GGSN can modify configuration files, or configure parameters through the maintenance system of GGSN. The configured parameter may be the address information of the service server. If multiple service servers need to be notified of the wireless bearer bandwidth information, multiple server address information is configured. The GGSN establishes a radio bearer bandwidth information notification link table according to the configured service server address.

The radio bearer bandwidth information notification link table at least includes the correspondence between the service server address information and the radio bearer bandwidth information notification link. As in Table 2,

The GGSN determines whether the service server needs to receive the wireless bearer bandwidth information notification, specifically,

The service data transmission between the user terminal and the PSS system is based on the packet service. The 3GPP 23060 specification defines that the SGSN transmits the packet service data to the GGSN through the GTP-U-UNIT-DATA.request message. GGSN judges whether the Destination IP Address in the service data is the address of the radio bearer bandwidth information link table in Table 1, if it is, it means that the service server needs the radio bearer bandwidth information notification, for example, the address of the streaming media server; if not, the user may What the terminal accesses is a server such as a portal. As mentioned above, in the PSS system, the streaming media service server needs to adjust the media code rate sent to the user terminal according to the wireless bearer bandwidth information. The portal server does not need it, so the GGSN does not need to configure the address of the portal server.

GGSN then searches for the PDP context according to the TEID of the GTP-U-UNIT-DATA.request, and searches for the configured Destination IPAddress in the PDP context. If it is found, it means that the user terminal has visited the server, and there is no need to process it, and it will directly transfer to the normal GTP -U-UNIT-DATA.request processing flow; if not found, add the server address in the PDP context, and then transfer to the normal GTP-U-UNIT-DATA.request processing flow.

Step 304, record the address information of the service server.

Step 306, receiving the update PDP context request message sent by the SGSN.

After the radio bearer bandwidth information changes, the GGSN receives the update PDP context request message sent by the SGSN.

Step 308, acquiring the recorded address information of the service server.

The GGSN obtains the address information of the service server recorded in the PDP context according to the received update PDP context request message sent by the SGSN.

Step 310, look up the pre-established radio bearer bandwidth information notification link table.

Step 312: Send the changed radio bearer bandwidth information carried in the update PDP context request message to the service server.

Step 314, if the connection between the client and the service server is disconnected, delete the address information of the service server recorded in the PDP context.

Specifically, the GGSN receives the report message sent by the service server after receiving the client disconnection message, and deletes the address information of the service server recorded in the PDP context according to the report message; or,

GGSN regularly checks the connection status between the client and the service server. If it detects that the connection between the client and the service server has been disconnected, or if it detects that the connection between the client and the service server has exceeded the time threshold set by the GGSN, the GGSN Delete the address information of the service server recorded in the PDP context to avoid unnecessary system overhead caused by too many service server addresses stored in the GGSN.

Since the service server is notified of the changed radio bearer bandwidth information, the service server can adjust the coding rate of service data in time according to the radio bearer bandwidth information to adapt to the radio bearer bandwidth. On the one hand, it enables the business server side to know the wireless bearer bandwidth information in a timely manner, avoiding the business server side from processing the business data at a fixed rate due to the inability to know the wireless bearer bandwidth information, resulting in the overflow or loss of business data; on the other hand , because there is a wireless bearer bandwidth information notification link in the core network, the wireless bearer bandwidth information can be transmitted to the service server side in a more timely manner, so that the service server side can adjust the speed of service data processing in real time. Since the service server side can adjust the service data processing speed according to the acquired wireless bearer bandwidth information, the overflow or loss of service data is avoided; the streaming media received by the user terminal is smooth and complete. The experience of the user terminal is improved.

Please refer to FIG. 4, the embodiment of the present invention provides a system for notification of radio bearer bandwidth information, including:

GPRS service support node SGSN400, if the radio bearer bandwidth information in the PDP context changes, sends an update PDP context request message to GGSN402.

The gateway GPRS service support node GGSN402 is used to receive the update PDP context request message sent by SGSN400 after the wireless bearer bandwidth information changes, obtain the address information of the service server recorded in the PDP context according to the update PDP context request message, and search for the wireless service server according to the address information. The bearer bandwidth information notification link table, the radio bearer bandwidth information notification link table at least includes the correspondence between the service server address information and the radio bearer bandwidth information notification link, and the radio bearer bandwidth information notification corresponding to the address information in the radio bearer bandwidth information notification link table The link sends the updated radio bearer bandwidth information in the PDP context to the service server.

Optionally, the gateway GPRS service support node GGSN402 is also used to pre-establish a radio bearer bandwidth information notification link table. specific,

GGSN can modify configuration files, or configure parameters through the maintenance system of GGSN. The configured parameter may be the address information of the service server. If multiple service servers need to be notified of the wireless bearer bandwidth information, multiple server address information is configured. The GGSN establishes a radio bearer bandwidth information notification link table according to the configured service server address.

The radio bearer bandwidth information notification link table includes at least the correspondence between the service server address information and the radio bearer bandwidth information notification link, see Table 2 above.

Please refer to FIG. 5 , the embodiment of the present invention provides a wireless bearer bandwidth information notification system, including: GPRS service support node SGSN500 , gateway GPRS service support node GGSN502 and service server 504 . Wherein, the functions and structures of the GPRS service support node SGSN500 and the gateway GPRS service support node GGSN502 can refer to the expressions of the GPRS service support node SGSN400 and the gateway GPRS service support node GGSN402 in the above-mentioned embodiments, and will not be repeated here.

The service server 504 is configured to adjust the code rate for sending service data to the client according to the received changed radio bearer bandwidth information sent by the GGSN 502 .

The embodiment of the present invention notifies the service server of the changed radio bearer bandwidth information during streaming media transmission, so that the service server can adjust the encoding rate of service data in time according to the radio bearer bandwidth information to adapt to the radio bearer bandwidth. On the one hand, it enables the business server side to know the wireless bearer bandwidth information in a timely manner, avoiding the business server side from processing the business data at a fixed rate due to the inability to know the wireless bearer bandwidth information, resulting in the overflow or loss of business data; on the other hand , because there is a wireless bearer bandwidth information notification link in the core network, the wireless bearer bandwidth information can be transmitted to the service server side in a more timely manner, so that the service server side can adjust the speed of service data processing in real time.

Please refer to FIG. 6, the embodiment of the present invention provides an apparatus for notifying radio bearer bandwidth information, including:

On the Packet Switching Service (PSS) service carrying the packet service (GPRS) of the mobile network, the user terminal accesses the service server (portal server, browser, etc.) through the access network RAN and the core network (SGSN, GGSN) media server) activates the packet service and establishes a connection with the service server. When the packet service is established, the PDP context records the quality of service (Quality of Service, QoS) information of the radio bearer and the core network. The created PDP context includes fields as in Table 1.

The receiving module 602 is configured to receive an update PDP context request message sent by the GPRS service support node SGSN after the radio bearer bandwidth information changes.

An obtaining module 604, configured to obtain the address information of the service server recorded in the PDP context according to the update PDP context request message received by the receiving module 602;

The query module 606 is configured to search the radio bearer bandwidth information notification link table according to the address information, and the radio bearer bandwidth information notification link table at least includes the correspondence between the service server address information and the radio bearer bandwidth information notification link.

The notification module 608 is configured to send the changed radio bearer bandwidth information in the updated PDP context to the service server according to the radio bearer bandwidth information notification link corresponding to the address information of the service server in the radio bearer bandwidth information notification link table.

Please refer to FIG. 7 , the embodiment of the present invention provides a device for notification of radio bearer bandwidth information, including: a receiving module 702, a first judgment module 704, a first recording module 706, an acquisition module 708, a creation module 710, and a query module 712 , a notification module 714 and a deletion module 716 . in,

The receiving module 702 receives an update PDP context request message sent by the SGSN after the radio bearer bandwidth information changes.

The first judging module 704 is configured to judge whether the service server needs to receive the radio bearer bandwidth information notification.

Specifically, the service data transmission between the user terminal and the PSS system is based on the packet service, and the 3GPP 23060 specification defines that the SGSN transmits the packet service data to the GGSN through the GTP-U-UNIT-DATA.request message. Whether the first judgment module 704 judges whether the Destination IP Address in the service data is the address of the radio bearer bandwidth information link table in Table 1, if it is, it means that the service server needs the radio bearer bandwidth information notification, for example, the address of the streaming media server; if not Then it is possible that the user terminal accesses a server such as a portal. As mentioned above, in the PSS system, the service server needs to adjust the media code rate sent to the user terminal according to the wireless bearer bandwidth information, such as the streaming media server, but the portal server does not need it, so the GGSN does not need to configure the address of the portal server .

The first recording module 706 is configured to record the address information of the service server in the PDP context if the first judging module 704 judges that the service server needs to receive the radio bearer bandwidth information notification.

The obtaining module 708 is configured to obtain the address information of the service server recorded by the first recording module 706 according to the update PDP context request message received by the receiving module 704 .

The creation module 710 is used to pre-establish a radio bearer bandwidth information notification link table, and the radio bearer bandwidth information notification link table at least includes the correspondence between the service server address information and the radio bearer bandwidth information notification link.

Specifically, the creation module 710 may modify configuration files, or maintain system configuration parameters. The configured parameters are mainly the address information of the service server. If there are multiple service servers in the service system that need to be notified of the radio bearer bandwidth information, configure multiple server address information. The creating module 710 creates a radio bearer bandwidth information notification link table according to the configured service server address.

The radio bearer bandwidth information notification link table includes at least the correspondence between the service server address information and the radio bearer bandwidth information notification link, see Table 2 above.

The query module 712 is configured to search the radio bearer bandwidth information notification link table established by the creation module 710 according to the address information obtained by the acquisition module 708. The radio bearer bandwidth information notification link table at least includes the address information of the service server and the radio bearer bandwidth information notification link corresponding relationship.

The notification module 714 is configured to query the radio bearer bandwidth information notification link corresponding to the address information of the service server in the radio bearer bandwidth information notification link table according to the query module 712, and send the changed radio bearer bandwidth information carried in the update PDP context request message to the service server. Bearer bandwidth information.

The deletion module 716 is configured to delete the address information of the service server recorded by the first recording module 706 if the connection between the client and the service server is disconnected.

Please refer to FIG. 8 , the embodiment of the present invention provides a device for notifying wireless bearer bandwidth information, including: a search module 802, a second recording module 804, a second judgment module 806, a receiving module 808, an acquisition module 810, a creation module 812 , query module 814 , notification module 816 and deletion module 818 . in,

The receiving module 802 is configured to receive an update PDP context request message sent by the SGSN after the radio bearer bandwidth information changes.

A search module 804, configured to find whether the address information of the service server is saved in the PDP context.

The second judging module 806 is configured to judge whether the service server needs to receive radio bearer bandwidth information notifications.

Specifically, the second judging module 806 searches for the PDP context according to the TEID of the GTP-U-UNIT-DATA.request, and searches for the configured Destination IP Address in the PDP context. If found, it means that the user terminal has visited the server, and no further If it is not found, add the server address in the PDP context, and then transfer to the normal GTP-U-UNIT-DATA.request processing flow.

The second recording module 808 is used to record in the PDP context if the search module 804 finds that the address information of the service server is not saved in the PDP context, and the second judging module 806 judges that the service server needs to receive the radio bearer bandwidth information notification Address information of the service server.

The obtaining module 810 is configured to obtain the address information of the service server recorded by the second recording module 808 according to the update PDP context request message received by the receiving module 802 .

The creation module 812 is configured to pre-establish a radio bearer bandwidth information notification link table, and the radio bearer bandwidth information notification link table at least includes the correspondence between the service server address information and the radio bearer bandwidth information notification link.

Specifically, the creation module 812 may modify configuration files, or maintain system configuration parameters. The configured parameters are mainly the address information of the service server. If there are multiple service servers in the service system that need to be notified of the radio bearer bandwidth information, configure multiple server address information. The creation module 812 creates a radio bearer bandwidth information notification link table according to the configured service server address.

The query module 814 is configured to search the radio bearer bandwidth information notification link table established by the creation module 812 according to the address information obtained by the acquisition module 810. The radio bearer bandwidth information notification link table at least includes the address information of the service server and the radio bearer bandwidth information notification link corresponding relationship.

The notification module 816 is configured to query the radio bearer bandwidth information notification link corresponding to the address information of the service server in the radio bearer bandwidth information notification link table according to the query module 814, and send the updated radio bearer bandwidth information in the PDP context to the service server .

The deletion module 818 is configured to delete the address information of the service server recorded by the second recording module 808 if the connection between the client and the service server is disconnected.

Please refer to FIG. 9. The embodiment of the present invention discloses a device for notifying radio bearer bandwidth information. The embodiment of the present invention introduces the deletion module 900 in the device for notifying radio bearer bandwidth information. Other parts of the device can be referred to above. The elaboration in the embodiment will not be repeated here. The deletion module 900 includes: a time threshold setting unit 9002 , a detection unit 9004 and a second deletion operation execution unit 9006 . Wherein, the time threshold setting unit 9002 is an optional unit in the embodiment of the present invention.

A time threshold setting unit 9002, configured to set a time threshold.

The detection unit 9004 is configured to detect whether the connection between the client and the service server is disconnected.

The detection unit 9004 actively maintains the access session information between the client and the streaming media server, and automatically terminates the session when it detects that the client no longer accesses the streaming media server.

Optionally, the checking unit 9004 actively maintains the access session information between the client and the streaming media server, and automatically terminates the session when it detects that the client no longer accesses the streaming media server beyond the time threshold set by the time threshold setting unit.

The second deletion operation execution unit 9006 is configured to delete the address information of the service server recorded in the PDP context if the detection unit 9004 detects that the connection between the client and the service server is disconnected.

Optionally, the deletion module 900 may further include a time threshold setting unit 9002, configured to set a time threshold. Specifically, the detection unit 9004 detects whether the disconnection time between the client and the service server exceeds the time threshold, if the detection unit 9004 detects that the disconnection time between the client and the service server exceeds the time threshold set by the time threshold setting unit , the second delete operation executing unit 9006 deletes the address information of the service server recorded in the PDP context.

In the embodiment of the present invention, during the streaming media transmission process, since the core network notifies the service server of the changed radio bearer bandwidth information, the service server can adjust the encoding rate of service data in time according to the radio bearer bandwidth information to adapt to the radio bearer bandwidth. On the one hand, it enables the business server side to know the wireless bearer bandwidth information in a timely manner, avoiding the business server side from processing the business data at a fixed rate due to the inability to know the wireless bearer bandwidth information, resulting in the overflow or loss of business data; on the other hand , because there is a wireless bearer bandwidth information notification link in the core network, the wireless bearer bandwidth information can be transmitted to the service server side in a more timely manner, so that the service server side can adjust the speed of service data processing in real time. Since the service server side can adjust the service data processing speed according to the acquired wireless bearer bandwidth information, the overflow or loss of service data is avoided; the streaming media received by the user terminal is smooth and complete. The experience of the user terminal is improved.

At the same time, since the embodiment of the present invention deletes the address information of the service server in the PDP context after the client is disconnected from the service server, the system overhead caused by too much content in the PDP context is avoided.

Those of ordinary skill in the art can know by reading this application that all or part of the steps in the above method can also be completed by hardware related to program instructions, and the program can be stored in a computer-readable storage medium, such as: ROM, RAM or CD, etc.

To sum up, the above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (14)

1. A method for wireless bearer bandwidth information notification, characterized in that the method comprises: Receive the update PDP context request message sent by the GPRS service support node SGSN after the wireless bearer bandwidth information changes; Acquire the address information of the service server recorded in the PDP context according to the update PDP context request message; Searching the radio bearer bandwidth information notification link table according to the address information, the radio bearer bandwidth information notification link table at least includes the corresponding relationship between the service server address information and the radio bearer bandwidth information notification link; Sending the changed radio bearer bandwidth information carried in the updated PDP context to the service server according to the radio bearer bandwidth information notification link corresponding to the address information in the radio bearer bandwidth information notification link table; The method also includes: Pre-establish the wireless bearer bandwidth information notification link table; Before obtaining the address information of the service server recorded in the PDP context according to the update PDP context request message, it also includes: Judging whether the service server needs to receive the radio bearer bandwidth information notification, and if so, recording the address information of the service server in the PDP context. the 2. The method of claim 1, wherein the method further comprises: The service server adjusts a code rate for sending service data to the client according to the received changed radio bearer bandwidth information. the 3. The method of claim 1, wherein the method further comprises: Check whether the address information of the service server is saved in the PDP context, if not saved, and it is judged that the service server needs to receive the radio bearer bandwidth information notification, then record the address information of the service server in the PDP context. the 4. any method as described in claim 1-3, is characterized in that, described method also comprises: If the connection between the client and the service server is disconnected, delete the address information of the service server recorded in the PDP context. the 5. The method according to claim 4, wherein if the connection between the client and the service server is disconnected, deleting the address information of the service server recorded in the PDP context comprises: If it is detected that the connection between the client and the service server is disconnected, delete the address information of the service server recorded in the PDP context. the 6. The method according to claim 5, wherein if it is detected that the connection between the client and the service server is disconnected, the address information of the service server recorded in the PDP context is deleted include: A time threshold is set, and if it is detected that the disconnection time between the client and the service server exceeds the time threshold, the address information of the service server recorded in the PDP context is deleted. the 7. A system for notification of wireless bearer bandwidth information, characterized in that the system includes: The gateway GPRS service support node GGSN is used to receive the update PDP context request message sent by the GPRS service support node SGSN after the radio bearer bandwidth information changes, and obtain the address information of the service server recorded in the PDP context according to the update PDP context request message, Search the radio bearer bandwidth information notification link table according to the address information, the radio bearer bandwidth information notification link table at least includes the corresponding relationship between the service server address information and the radio bearer bandwidth information notification link, and according to the radio bearer bandwidth information notification The radio bearer bandwidth information corresponding to the address information in the link table notifies the link to send the changed radio bearer bandwidth information in the updated PDP context request to the service server; The GGSN is also used to pre-establish a wireless bearer bandwidth information notification link table; Before obtaining the address information of the service server recorded in the PDP context according to the update PDP context request message, it also includes: Judging whether the service server needs to receive the wireless bearer bandwidth information notification, if necessary, recording the address information of the service server in the PDP context; The GPRS service support node SGSN, if the radio bearer bandwidth information in the PDP context changes, sends an update PDP context request message to the GGSN. the 8. system as claimed in claim 7, is characterized in that, described system also comprises: The service server is configured to adjust a code rate for sending service data to the client according to the received changed radio bearer bandwidth information. the 9. A device for notification of wireless bearer bandwidth information, characterized in that the device comprises: The receiving module receives the update PDP context request message sent by the GPRS service support node SGSN after the wireless bearer bandwidth information changes; An acquisition module, configured to acquire the address information of the service server recorded in the PDP context according to the update PDP context request message; The query module is used to search the wireless bearer bandwidth information notification link table according to the address information, and the wireless bearer bandwidth information notification link table includes at least the corresponding relationship between the service server address information and the wireless bearer bandwidth information notification link; A notification module, configured to send the changed radio bearer bandwidth information in the updated PDP context to the service server according to the radio bearer bandwidth information notification link corresponding to the address information in the radio bearer bandwidth information notification link table; The device also includes: The first judging module is used to judge whether the service server needs to receive the wireless bearer bandwidth information notification; The first recording module is configured to record the address information of the service server in the PDP context if the first judging module judges that the service server needs to receive radio bearer bandwidth information notifications. the 10. device as claimed in claim 9, is characterized in that, described device also comprises: The creation module is configured to pre-establish a radio bearer bandwidth information notification link table, and the radio bearer bandwidth information notification link table at least includes the correspondence between the service server address information and the radio bearer bandwidth information notification link. the 11. device as claimed in claim 9, is characterized in that, described device also comprises: The search module is used to find whether the address information of the service server is stored in the PDP context; The second judging module is used to judge whether the service server needs to receive the wireless bearer bandwidth information notification; The second recording module is used to find that the address information of the service server is not saved in the PDP context by the search module, and the second judging module judges that the service server needs to receive the wireless bearer bandwidth information notification, Then record the address information of the service server in the PDP context. the 12. any device as claimed in claim 9-11, is characterized in that, described device also comprises: A deletion module, configured to delete the address information of the service server recorded in the PDP context if the connection between the client and the service server is disconnected. the 13. The device according to claim 12, wherein the deletion module comprises: A detection unit, configured to detect whether the connection between the client and the service server is disconnected; A deletion operation execution unit, configured to delete the address information of the service server recorded in the PDP context if the detection unit detects that the connection between the client and the service server is disconnected. the 14. The device according to claim 13, wherein the deletion module comprises: A time threshold setting unit, configured to set a time threshold; the detection unit is also used to detect whether the disconnection time between the client and the service server exceeds the time threshold, and the deletion operation execution unit is also configured to The detection unit detects that the disconnection time between the client and the service server exceeds the time threshold, and deletes the address information of the service server recorded in the PDP context. the

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