CN109327419B - Message transmission method and device, wireless network controller and storage medium - Google Patents
Message transmission method and device, wireless network controller and storage medium Download PDFInfo
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- CN109327419B CN109327419B CN201710644877.8A CN201710644877A CN109327419B CN 109327419 B CN109327419 B CN 109327419B CN 201710644877 A CN201710644877 A CN 201710644877A CN 109327419 B CN109327419 B CN 109327419B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
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- H—ELECTRICITY
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Abstract
The invention provides a message transmission method and device, a wireless network controller and a computer storage medium, which are based on that the wireless network controller configures address information of a service base station to a non-service base station in advance, informs the non-service base station to update or delete the configured address information of the service base station according to the change of a wireless link of the service base station and an active informing mechanism of the non-service base station to the service base station, thereby establishing a transparent transmission channel between the base stations. When receiving the IP datagram from the service base station or the non-service base station, the wireless network controller directly decapsulates the inner layer IP datagram and directly transmits the inner layer IP datagram to the non-service base station or the service base station of the opposite end, wherein the inner layer IP datagram carries interaction information for realizing high-speed packet access service cooperation. The invention can reduce the processing load of the wireless network controller for realizing the high-speed packet access service cooperation between the base stations.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a method and an apparatus for packet transmission, a radio network controller, and a computer-readable storage medium.
Background
In UMTS (Universal Mobile Telecommunications System), due to deployment of heterogeneous networks and complexity of network environments, there is a need for high-speed packet access service co-scheduling between different base stations, and thus, mutual communication between base stations is required. However, UMTS only defines an Interface NBAP (base station Application Part) Interface and an Interface FP (Frame Protocol) Interface between a radio network controller and a base station, and does not define a communication Interface between base stations. In the prior art, in order to realize high-speed packet access service cooperation between base stations, a wireless network controller is required to identify and transfer interaction information between the base stations one by one, so that the processing load of the wireless network controller is greatly increased.
Disclosure of Invention
The invention mainly aims to provide a message transmission method and device, a wireless network controller and a computer readable storage medium, aiming at reducing the processing load of the wireless network controller for realizing the cooperation of high-speed packet access service between base stations.
In order to achieve the above object, the present invention provides a message transmission method, including:
a wireless network controller receives an IP datagram sent by a first base station;
decapsulating the IP datagram to obtain an inner layer IP datagram;
and when the destination address of the inner layer IP datagram points to a second base station, the inner layer IP datagram is transmitted to the second base station, wherein the inner layer IP datagram carries interaction information for realizing high-speed packet access service cooperation, and when the first base station is a service base station, the second base station is a non-service base station, or when the first base station is a non-service base station, the second base station is a service base station.
Further, the present invention provides a message transmission apparatus, including:
a receiving module, configured to receive an IP datagram sent by a first base station;
the processing module is used for decapsulating the IP datagram to obtain a lining IP datagram;
and the transparent transmission module is used for transmitting the inner layer IP datagram to the second base station when the destination address of the inner layer IP datagram points to the second base station, wherein the inner layer IP datagram carries interactive information for realizing high-speed packet access service cooperation, and when the first base station is a service base station, the second base station is a non-service base station, or when the first base station is a non-service base station, the second base station is a service base station.
Further, the present invention also provides a radio network controller, comprising:
a memory storing a message transmission program;
a processor in communication with the memory and configured to execute the messaging program to perform the steps of:
receiving an IP datagram sent by a first base station;
decapsulating the IP datagram to obtain an inner layer IP datagram;
and when the destination address of the inner layer IP datagram points to a second base station, the inner layer IP datagram is transmitted to the second base station, wherein the inner layer IP datagram carries interaction information for realizing high-speed packet access service cooperation, and when the first base station is a service base station, the second base station is a non-service base station, or when the first base station is a non-service base station, the second base station is a service base station.
Further, the present invention also provides a computer-readable storage medium having a message transmission program stored thereon, the message transmission program, when executed by a processor, implementing the steps of:
receiving an IP datagram sent by a first base station;
decapsulating the IP datagram to obtain an inner layer IP datagram;
and when the destination address of the inner layer IP datagram points to a second base station, the inner layer IP datagram is transmitted to the second base station, wherein the inner layer IP datagram carries interaction information for realizing high-speed packet access service cooperation, and when the first base station is a service base station, the second base station is a non-service base station, or when the first base station is a non-service base station, the second base station is a service base station.
According to the scheme, the IP datagram sent by the first base station is received through the wireless network controller, the IP datagram is unpacked, so that a back layer IP datagram carrying interaction information for realizing high-speed packet access service cooperation is obtained, and then the back layer IP datagram is transmitted to the second base station when the destination address of the back layer IP datagram points to the second base station, so that the interaction information does not need to be identified and processed when the wireless network controller participates in the transfer of the interaction information between the base stations, and the processing load of the wireless network controller for realizing the high-speed packet access service cooperation between the base stations is reduced.
Drawings
Fig. 1 is a schematic diagram of an alternative hardware architecture of a rnc according to the present invention;
fig. 2 is a schematic flow chart of a message transmission method according to a first embodiment of the present invention;
fig. 3 is an exemplary diagram of a topology structure of a first base station, a second base station and a radio network controller according to a first embodiment of the message transmission method of the present invention;
fig. 4 is a schematic flowchart illustrating a first embodiment of a message transmission method according to the present invention, wherein a serving radio link address of a serving base station is configured to a non-serving base station;
fig. 5 is a diagram illustrating another topology of a first base station, a second base station, and a radio network controller according to a first embodiment of the message transmission method of the present invention;
fig. 6 is a schematic block diagram of a message transmission apparatus according to a first embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows: the method comprises the steps that an IP datagram sent by a first base station is received through a wireless network controller, the IP datagram is unpacked, a lining IP datagram carrying interaction information for realizing high-speed packet access service cooperation is obtained, and then when the destination address of the lining IP datagram points to a second base station, the lining IP datagram is transmitted to the second base station, so that the wireless network controller does not need to identify the interaction information and does not need to process the interaction information when participating in the transfer of the interaction information between the base stations, and the processing load of the wireless network controller for realizing the high-speed packet access service cooperation between the base stations is reduced.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a radio network controller in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the radio network controller may include: a processor 1001, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface, and the like. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., a Wi-Fi interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the architecture of the radio network controller shown in fig. 1 does not constitute a limitation of the radio network controller and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, in one embodiment of the radio network controller of the present invention, a memory 1005, which is a kind of computer storage medium, may include an operating system, a network communication module, a user interface module, and a message transmission program.
In the radio network controller shown in fig. 1, the network interface 1004 is mainly used for connecting to a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to invoke the messaging program stored in the memory 1005 and perform the following operations:
receiving an IP datagram sent by a first base station;
decapsulating the received IP datagram to obtain an inner layer IP datagram;
and when the destination address of the inner layer IP datagram points to the second base station, the inner layer IP datagram is transmitted to the second base station, wherein the inner layer IP datagram carries interaction information for realizing high-speed packet access service cooperation, and when the first base station is a service base station, the second base station is a non-service base station, or when the first base station is a non-service base station, the second base station is a service base station.
Further, the aforementioned mutual information includes at least one of non-service radio link registration information, non-service radio link deregistration information, cooperative algorithm start information, cooperative algorithm stop information, and cooperative algorithm data information.
Further, when the first base station is a serving base station and the second base station is a non-serving base station, the processor 1001 may be configured to call the message transmission program stored in the memory 1005, and further perform the following operations:
when detecting that the non-service base station establishes the non-service wireless link, configuring the address information of the service wireless link on the service base station to the non-service base station.
Further, when the interaction information is non-service wireless link registration information, the non-service wireless link registration information includes address information of a non-service wireless link established by a non-service base station.
Further, the processor 1001 may be configured to invoke a messaging program stored in the memory 1005, and further perform the following operations:
and transmitting the inner layer IP datagram to the second base station through the MAC-d stream.
Further, the processor 1001 may be configured to invoke a messaging program stored in the memory 1005, and further perform the following operations:
and when the destination address of the inner layer IP datagram points to other wireless network controllers, the inner layer IP datagram is transmitted to the other wireless network controllers pointed by the destination address.
Further, the present invention also provides a message transmission method, which is applied to the radio network controller shown in fig. 1, and referring to fig. 2, in a first embodiment of the message transmission method of the present invention, the message transmission method includes:
step S10, the wireless network controller receives the IP datagram sent by the first base station;
step S20, decapsulating the received IP datagram to obtain a back layer IP datagram;
and step S30, when the destination address of the inner layer IP datagram points to the second base station, the inner layer IP datagram is transmitted to the second base station, wherein the inner layer IP datagram carries interaction information for realizing high-speed packet access service cooperation, when the first base station is a service base station, the second base station is a non-service base station, or when the first base station is a non-service base station, the second base station is a service base station.
It should be noted that the solution of the present invention is to implement transparent transmission of mutual information between base stations for implementing high-speed packet access service coordination by a radio network controller, and for this purpose, the IpinIP IP packet format shown in table 1 is adopted as the packet format of an IP datagram carrying mutual information. The mutual information includes, but is not limited to, non-service radio link registration information, non-service radio link deregistration information, cooperative algorithm start information, cooperative algorithm stop information, and cooperative algorithm data information.
| Outer IP head | Inner layer IP head | UDP header | Additional information | FP frame |
TABLE 1
As shown in table 1, when the first base station needs to send the interactive information to the second base station, the interactive information is encapsulated, specifically, an outer layer IP header is filled with an IP address of the radio network controller, an inner layer IP header is filled with an IP address of the second base station, a FP frame portion is filled with specific interactive information, and a source/destination port number, a packet length, a checksum, and the like are filled into a UDP header according to actual needs, wherein an additional information portion may determine filling data according to actual needs. It should be noted that, when the first base station is a serving base station, the second base station is a non-serving base station, or when the first base station is a non-serving base station, the second base station is a serving base station.
In this embodiment, after the first base station has the interactive information to send and encapsulates the interactive information into the IP datagram shown in table 1, the encapsulated IP datagram is sent to the radio network controller.
When receiving the IP datagram sent by the first base station, the radio network controller recognizes that the destination IP address of the IP datagram is its own IP address, decapsulates the IP datagram to obtain a back-layer IP datagram, and it is easy to understand that the destination IP address of the back-layer IP datagram is the IP address of the second base station. At this time, the rnc directly transmits the inner layer datagram to the second bs without any processing of the inner layer IP datagram.
It is easy to understand that, after receiving the inner IP datagram transparently transmitted by the radio network controller, the second base station may perform corresponding interworking operation according to the interworking information carried by the inner IP datagram, or perform further processing on the interworking information.
For example, when the first base station is a non-serving base station and the second base station is a serving base station, the second base station may perform operations such as registration/deregistration of a non-serving radio link on the non-serving base station and cooperative algorithm start/stop operations according to the mutual information transparently transmitted by the radio network controller.
Further, in the present embodiment, step S30 includes:
and transmitting the inner layer IP datagram to the second base station through the MAC-d stream.
In the embodiment of the present invention, an Iub-X2 interface is predefined, and as shown in fig. 3, the Iub-X2 interface implements an X2 interface (the X2 interface is an inter-base station interface and is used for implementing direct transmission of data and signaling) function by using the Iub interface.
Before the radio network controller participates in the transfer of the above-mentioned mutual information, a public channel dedicated to the high-speed packet access service is established in the uplink direction based on the defined Iub-X2 interface, and the existing user terminal dedicated channel of the 3GPP protocol is used in the downlink direction. That is to say, when any base station shown in fig. 3 needs to send the interworking information for implementing the high-speed packet access service to the peer base station, the source base station first sends the interworking information to the radio network controller through the public channel, and then the radio network controller sends the interworking information to the destination base station through the dedicated channel. The dedicated channel may be an enhanced dedicated channel MAC-d flow or a high speed downlink packet access MAC-d flow.
Further, in this embodiment, when the first base station is a non-serving base station and the second base station is a serving base station, in order to implement transmission of interaction information between the base stations, before step S10, the method further includes:
when detecting that the non-service base station establishes the non-service wireless link, configuring the address information of the service wireless link on the service base station to the non-service base station.
Based on the foregoing description about the IP datagram format, those skilled in the art will readily understand that, in order to implement transmission of the mutual information, both the first base station and the second base station need to grasp the IP address of the opposite base station and the port number of the specific cooperative service. Therefore, referring to fig. 4, in the embodiment of the present invention, in the process of establishing the non-serving radio link on the non-serving base station, the radio network controller configures address information, including an IP address and a port number, of the serving radio link on the serving base station to the non-serving base station by adding a private message or adding a private cell in the radio link establishment message.
Further, in this embodiment, after receiving the address information of the serving radio link on the serving base station configured by the radio network controller, the non-serving base station stores the received address information of the serving radio link, and actively sends the non-serving radio link registration information to the serving base station, where the non-serving radio link registration information includes the address information of the non-serving radio link established by the non-serving base station, and the specific sending manner refers to the foregoing description, and is not described herein again.
Further, in this embodiment, the method further includes the following steps:
when detecting that the service wireless link is switched, configuring address information of the switched service wireless link to a non-service base station;
or, when detecting the high speed packet access service is reconfigured to other services, instructing the non-service base station to delete the address information of the configured service wireless link.
In this embodiment, when detecting that the serving radio link is switched, and after the switching of the serving radio link is completed, the radio network controller configures address information, including an IP address and a port number, of the switched serving radio link to the non-serving base station by adding a private message or adding a private cell in a radio link reconfiguration message. In addition, when detecting that the high speed packet access service is reconfigured to another service, such as R99 service like voice and peer-to-peer short message, the rnc may instruct the non-serving bs to delete the address information of the configured serving radio link, specifically, instruct the non-serving bs to delete the address information of the configured serving radio link by adding a private message or adding a private cell in the radio link reconfiguration message, since no coordination of the high speed packet access service is required.
It should be noted that, in the embodiment of the present invention, the non-serving base station sends the interaction information to the serving base station according to actual needs, for example, after the non-serving base station receives address information of a serving radio link on the serving base station configured by the radio network controller in the process of establishing the non-serving radio link, the non-serving base station actively sends a non-serving radio link registration message (carrying the address information of the established non-serving radio link) to the serving base station through the radio network controller, and the serving base station receives and stores the address information of the non-serving radio link;
for another example, when the serving base station determines that the cooperative algorithm needs to be started based on the starting condition set by the cooperative algorithm, the serving base station sends cooperative algorithm starting information to the non-serving base station according to the stored non-serving radio link address, and the non-serving base station starts the cooperative processing process after receiving the cooperative algorithm starting information;
for another example, after the cooperative algorithm is started, the non-serving base station reports the cooperative algorithm data message in a periodic or event-triggered manner based on a reporting condition set by the cooperative algorithm, and the serving base station performs subsequent cooperative scheduling processing after receiving the cooperative algorithm data message;
for another example, when the serving base station determines that the cooperative algorithm needs to be stopped based on the stop condition set by the cooperative algorithm, the serving base station sends cooperative algorithm stop information to the non-serving base station according to the stored non-serving radio link address, and the non-serving base station stops the cooperative processing process and reports the cooperative algorithm data after receiving the cooperative algorithm stop information;
for another example, the non-serving base station actively sends non-serving radio link deregistration information to the serving base station during the deletion process of the non-serving radio link, and the serving base station deletes the stored address information of the non-serving radio link after receiving the non-serving radio link deregistration information.
In order to more clearly illustrate the present invention, the following description is given by way of specific examples.
Example 1, taking the inter-station cooperative scheduling for high speed downlink packet access according to the present invention as an example, the processing steps are as follows:
1. in the process of establishing a non-service wireless link by a non-service base station, a wireless network controller configures channel parameters of an uplink high-speed special physical control channel and address information of a service wireless link on a service base station to the non-service base station, and the IP address of the service wireless link can select an IP address corresponding to a high-speed downlink packet access MAC-d flow;
2. the non-service base station registers a newly established non-service wireless link and an address thereof to the service base station through the wireless network controller, the non-service wireless link address can select an IP address corresponding to a special channel or an IP address corresponding to an enhanced special channel MAC-d Flow, and the service base station stores all the registered non-service wireless links and addresses thereof;
3. when the service base station judges that the starting condition of the high-speed downlink packet access cooperative scheduling is met, if the wireless network controller sends cooperative algorithm starting information to a non-service wireless link address of the non-service base station, the non-service base station is instructed to start the high-speed downlink packet access cooperative algorithm;
4. after receiving the cooperative algorithm starting information, the non-serving base station starts a high-speed downlink packet access cooperative algorithm, and reports information such as ACK/NACK (Channel Quality Indicator) and CQI (Channel Quality Indicator) demodulated on the non-serving wireless link to a serving wireless link address of the serving base station through a wireless network controller in a mode of periodic or event triggering;
5. the service base station receives and utilizes the information of ACK/NACK, CQI and the like demodulated on the non-service wireless link to carry out high-speed downlink packet access cooperative scheduling;
6. when the service base station judges that the stop condition of the high-speed downlink packet access cooperative scheduling is met, sending cooperative algorithm stop information to a non-service wireless link address of the non-service base station through the wireless network controller, and indicating the non-service base station to stop executing the high-speed downlink packet access cooperative algorithm;
7. after receiving the cooperative algorithm stop information, the non-service base station stops executing the high-speed downlink packet access cooperative algorithm, thereby stopping reporting the demodulated ACK/NACK and CQI information on the non-service wireless link to the service base station;
8. when the non-service wireless link is deleted, the non-service base station sends non-service wireless link logout information to the service base station through the wireless network controller, and instructs the service base station to logout the wireless link newly deleted by the non-service base station and the address thereof.
Example 2
Taking the scheme of the invention for inter-station cooperative scheduling of high-speed uplink packet access as an example, the processing steps are as follows:
1. in the process of establishing a non-service wireless link by a non-service base station, a wireless network controller configures channel parameters of an uplink high-speed special physical control channel and address information of a service wireless link on a service base station to the non-service base station, and the IP address of the service wireless link can select an IP address corresponding to an enhanced special channel MAC-d flow;
2. the non-service base station registers a newly established non-service wireless link and an address thereof to the service base station through the wireless network controller, the non-service wireless link address can select an IP address corresponding to a special channel or an IP address corresponding to an enhanced special channel MAC-d Flow, and the service base station stores all the registered non-service wireless links and addresses thereof;
3. when the service base station judges that the starting condition of the high-speed uplink packet access cooperative scheduling is met, if the wireless network controller sends cooperative algorithm starting information to a non-service wireless link address of the non-service base station, the non-service base station is instructed to start the high-speed uplink packet access cooperative algorithm;
4. after receiving the cooperative algorithm starting information, the non-service base station starts a high-speed uplink packet access cooperative algorithm, and reports the information of Happy bit, SI and the like demodulated on the non-service wireless link to the service wireless link address of the service base station through the wireless network controller in a periodic or event triggering mode;
5. the service base station receives and utilizes information such as Happy bit, SI and the like demodulated on the non-service wireless link to carry out high-speed uplink packet access cooperative scheduling;
6. when the service base station judges that the stop condition of the high-speed uplink packet access cooperative scheduling is met, sending cooperative algorithm stop information to a non-service wireless link address of the non-service base station through a wireless network controller, and indicating the non-service base station to stop executing the high-speed uplink packet access cooperative algorithm;
7. after receiving the cooperative algorithm stop information, the non-service base station stops executing the high-speed uplink packet access cooperative algorithm, thereby stopping reporting information such as Happy bit, SI and the like demodulated on the non-service wireless link to the service base station;
8. when the non-service wireless link is deleted, the non-service base station sends non-service wireless link logout information to the service base station through the wireless network controller, and instructs the service base station to logout the wireless link newly deleted by the non-service base station and the address thereof.
The message transmission method provided by the invention receives the IP datagram sent by the first base station through the wireless network controller, decapsulates the IP datagram to obtain the inner layer IP datagram carrying the interaction information for realizing the high-speed packet access service cooperation, and then transmits the inner layer IP datagram to the second base station when the destination address of the inner layer IP datagram points to the second base station, so that the wireless network controller does not need to identify the interaction information and does not need to process the interaction information when participating in the transfer of the interaction information between the base stations, thereby reducing the processing load of the wireless network controller for realizing the high-speed packet access service cooperation between the base stations.
Further, based on the first embodiment, a second embodiment of the message transmission method according to the present invention is provided, where in this embodiment, after step S20, the method further includes:
and when the destination address of the inner layer IP datagram points to other wireless network controllers, transmitting the inner layer IP datagram to other wireless network controllers pointed by the destination address.
It should be noted that, in this embodiment, on the basis of the foregoing first embodiment, an interworking information transmission scheme between base stations across multiple radio network controllers is added, which is only described below, and other embodiments may refer to the foregoing first embodiment, and are not described herein again.
Specifically, in the embodiment of the present invention, if an Iur interface is spanned between the first base station and the second base station, that is, if a plurality of radio network controllers are included between the first base station and the second base station, when the first base station encapsulates an IP datagram, a multi-layer IP header is encapsulated according to the number of the radio network controllers, for example, as shown in fig. 5, an Iur-X2 interface is predefined, the Iub-X2 interface implements an X2 interface function by using the Iur interface, when two radio network controllers are included between the first base station and the second base station, the encapsulated IP datagram is shown in table 2, a sub outer IP header is used to fill an IP address of the near-end radio network controller, and an outer IP header is used to fill an IP address of the far-end radio network controller.
| Outer IP head | Sub-outer layer IP head | Inner layer IP head | UDP header | Additional information | FP frame |
TABLE 2
Further, the present invention also provides a message transmission apparatus, which is applied to the radio network controller shown in fig. 1, and corresponds to the first embodiment of the message transmission method, referring to fig. 6, in the first embodiment of the message transmission apparatus of the present invention, the message transmission apparatus includes:
a receiving module 10, configured to receive an IP datagram sent by a first base station;
a processing module 20, configured to decapsulate the IP datagram to obtain a back-layer IP datagram;
and a transparent transmission module 30, configured to transmit the inner IP datagram to the second base station when the destination address of the inner IP datagram points to the second base station, where the inner IP datagram carries interaction information for implementing high-speed packet access service coordination, and when the first base station is a serving base station, the second base station is a non-serving base station, or when the first base station is a non-serving base station, the second base station is a serving base station.
It should be noted that the solution of the present invention is to implement transparent transmission of mutual information between base stations for implementing high-speed packet access service coordination by a radio network controller, and for this purpose, the IpinIP IP packet format shown in table 1 is adopted as the packet format of an IP datagram carrying mutual information. The mutual information includes, but is not limited to, non-service radio link registration information, non-service radio link deregistration information, cooperative algorithm start information, cooperative algorithm stop information, and cooperative algorithm data information.
| Outer IP head | Inner layer IP head | UDP header | Additional information | FP frame |
TABLE 1
As shown in table 1, when the first base station needs to send the interactive information to the second base station, the interactive information is encapsulated, specifically, an outer layer IP header is filled with an IP address of the radio network controller, an inner layer IP header is filled with an IP address of the second base station, a FP frame portion is filled with specific interactive information, and a source/destination port number, a packet length, a checksum, and the like are filled into a UDP header according to actual needs, wherein an additional information portion may determine filling data according to actual needs. It should be noted that, when the first base station is a serving base station, the second base station is a non-serving base station, or when the first base station is a non-serving base station, the second base station is a serving base station.
In this embodiment, after the first base station has the interactive information to send and encapsulates the interactive information into the IP datagram shown in table 1, the encapsulated IP datagram is sent to the radio network controller.
When the radio network controller receives the IP datagram sent by the first base station, the receiving module 10 recognizes that the destination IP address of the IP datagram is the IP address of the radio network controller, and the processing module 20 decapsulates the IP datagram to obtain a back layer IP datagram, which is easy to understand that the destination IP address of the back layer IP datagram is the IP address of the second base station. At this time, the transparent transmission module 30 directly transmits the inner layer datagram to the second base station without any processing of the inner layer IP datagram by the radio network controller.
It is easy to understand that, after receiving the inner IP datagram transparently transmitted by the transparent transmission module 30, the second base station may perform corresponding interaction operation according to the interaction information carried by the inner IP datagram, or perform further processing on the interaction information.
For example, when the first base station is a non-serving base station and the second base station is a serving base station, the second base station may perform operations such as registration/deregistration of a non-serving wireless link on the non-serving base station and cooperative algorithm start/stop operations according to the mutual information transparently transmitted by the transparent transmission module 30.
Further, in this embodiment, the transparent transmission module 30 is further configured to transmit the inner layer IP datagram through the MAC-d stream to the second base station.
In the embodiment of the present invention, an Iub-X2 interface is predefined, and as shown in fig. 3, the Iub-X2 interface implements an X2 interface (the X2 interface is an inter-base station interface and is used for implementing direct transmission of data and signaling) function by using the Iub interface.
Before the message transmission device participates in the transfer of the interactive information, a public channel dedicated to the high-speed packet access service is established in the uplink direction based on the defined Iub-X2 interface, and a user terminal dedicated channel existing in the 3GPP protocol is used in the downlink direction. That is to say, when any base station shown in fig. 3 needs to send the interworking information for implementing the high-speed packet access service to the peer base station, the source base station first sends the interworking information to the radio network controller through the public channel, and then the radio network controller sends the interworking information to the destination base station through the dedicated channel. The wireless network controller realizes functions based on a message transmission device, and the special channel can be an enhanced special channel MAC-d flow and can also be a high-speed downlink packet access MAC-d flow.
Further, in this embodiment, when the first base station is a non-serving base station and the second base station is a serving base station, in order to implement transmission of interaction information between the base stations, the message transmission apparatus further includes a configuration module (not shown in fig. 6) configured to configure address information of a serving radio link on the serving base station to the non-serving base station when it is detected that the non-serving base station establishes the non-serving radio link.
Based on the foregoing description about the IP datagram format, those skilled in the art will readily understand that, in order to implement transmission of the mutual information, both the first base station and the second base station need to grasp the IP address of the opposite base station and the port number of the specific cooperative service. Therefore, referring to fig. 4, in the embodiment of the present invention, in the process of establishing the non-serving radio link on the non-serving base station through the configuration module, the radio network controller configures the address information of the serving radio link on the serving base station, including the IP address and the port number, to the non-serving base station by adding the private message or adding the private cell in the radio link establishment message.
Further, in this embodiment, after receiving the address information of the serving radio link on the serving base station configured by the radio network controller, the non-serving base station stores the received address information of the serving radio link, and actively sends the non-serving radio link registration information to the serving base station, where the non-serving radio link registration information includes the address information of the non-serving radio link established by the non-serving base station, and the specific sending manner refers to the foregoing description, and is not described herein again.
Further, in this embodiment, the configuration module is further configured to configure address information of the switched serving radio link to the non-serving base station when detecting that the serving radio link is switched;
or, when detecting the high speed packet access service is reconfigured to other services, instructing the non-service base station to delete the address information of the configured service wireless link.
In this embodiment, the rnc configures, by using the configuration module, the address information, including the IP address and the port number, of the service radio link after handover to the non-service base station by adding a private message or adding a private cell to a radio link reconfiguration message after the handover of the service radio link is completed. In addition, when detecting that the high speed packet access service is reconfigured to another service, such as R99 service like voice and peer-to-peer short message, the rnc further instructs the non-serving bs to delete the address information of the configured serving radio link by adding a private message or adding a private cell in the radio link reconfiguration message, because no coordination of the high speed packet access service is required at this time.
It should be noted that, in the embodiment of the present invention, the non-serving base station sends the interaction information to the serving base station according to actual needs, for example, after the non-serving base station receives address information of a serving radio link on the serving base station configured by the radio network controller in the process of establishing the non-serving radio link, the non-serving base station actively sends a non-serving radio link registration message (carrying the address information of the established non-serving radio link) to the serving base station through the radio network controller, and the serving base station receives and stores the address information of the non-serving radio link;
for another example, when the serving base station determines that the cooperative algorithm needs to be started based on the starting condition set by the cooperative algorithm, the serving base station sends cooperative algorithm starting information to the non-serving base station according to the stored non-serving radio link address, and the non-serving base station starts the cooperative processing process after receiving the cooperative algorithm starting information;
for another example, after the cooperative algorithm is started, the non-serving base station reports the cooperative algorithm data message in a periodic or event-triggered manner based on a reporting condition set by the cooperative algorithm, and the serving base station performs subsequent cooperative scheduling processing after receiving the cooperative algorithm data message;
for another example, when the serving base station determines that the cooperative algorithm needs to be stopped based on the stop condition set by the cooperative algorithm, the serving base station sends cooperative algorithm stop information to the non-serving base station according to the stored non-serving radio link address, and the non-serving base station stops the cooperative processing process and reports the cooperative algorithm data after receiving the cooperative algorithm stop information;
for another example, the non-serving base station actively sends non-serving radio link deregistration information to the serving base station during the deletion process of the non-serving radio link, and the serving base station deletes the stored address information of the non-serving radio link after receiving the non-serving radio link deregistration information.
In order to more clearly illustrate the present invention, the following description is given by way of specific examples.
Example 1, taking the scheme of the present invention for inter-station cooperative scheduling of high speed downlink packet access as an example, a radio network controller implements functions based on a message transmission device:
1. in the process of establishing a non-service wireless link by a non-service base station, a wireless network controller configures channel parameters of an uplink high-speed special physical control channel and address information of a service wireless link on a service base station to the non-service base station, and the IP address of the service wireless link can select an IP address corresponding to a high-speed downlink packet access MAC-d flow;
2. the non-service base station registers a newly established non-service wireless link and an address thereof to the service base station through the wireless network controller, the non-service wireless link address can select an IP address corresponding to a special channel or an IP address corresponding to an enhanced special channel MAC-d Flow, and the service base station stores all the registered non-service wireless links and addresses thereof;
3. when the service base station judges that the starting condition of the high-speed downlink packet access cooperative scheduling is met, if the wireless network controller sends cooperative algorithm starting information to a non-service wireless link address of the non-service base station, the non-service base station is instructed to start the high-speed downlink packet access cooperative algorithm;
4. after receiving the cooperative algorithm starting information, the non-serving base station starts a high-speed downlink packet access cooperative algorithm, and reports information such as ACK/NACK (Channel Quality Indicator) and CQI (Channel Quality Indicator) demodulated on the non-serving wireless link to a serving wireless link address of the serving base station through a wireless network controller in a mode of periodic or event triggering;
5. the service base station receives and utilizes the information of ACK/NACK, CQI and the like demodulated on the non-service wireless link to carry out high-speed downlink packet access cooperative scheduling;
6. when the service base station judges that the stop condition of the high-speed downlink packet access cooperative scheduling is met, sending cooperative algorithm stop information to a non-service wireless link address of the non-service base station through the wireless network controller, and indicating the non-service base station to stop executing the high-speed downlink packet access cooperative algorithm;
7. after receiving the cooperative algorithm stop information, the non-service base station stops executing the high-speed downlink packet access cooperative algorithm, thereby stopping reporting the demodulated ACK/NACK and CQI information on the non-service wireless link to the service base station;
8. when the non-service wireless link is deleted, the non-service base station sends non-service wireless link logout information to the service base station through the wireless network controller, and instructs the service base station to logout the wireless link newly deleted by the non-service base station and the address thereof.
Example 2
Taking the scheme of the invention for inter-station cooperative scheduling of high-speed uplink packet access as an example, a wireless network controller realizes the following functions based on a message transmission device:
1. in the process of establishing a non-service wireless link by a non-service base station, a wireless network controller configures channel parameters of an uplink high-speed special physical control channel and address information of a service wireless link on a service base station to the non-service base station, and the IP address of the service wireless link can select an IP address corresponding to an enhanced special channel MAC-d flow;
2. the non-service base station registers a newly established non-service wireless link and an address thereof to the service base station through the wireless network controller, the non-service wireless link address can select an IP address corresponding to a special channel or an IP address corresponding to an enhanced special channel MAC-d Flow, and the service base station stores all the registered non-service wireless links and addresses thereof;
3. when the service base station judges that the starting condition of the high-speed uplink packet access cooperative scheduling is met, if the wireless network controller sends cooperative algorithm starting information to a non-service wireless link address of the non-service base station, the non-service base station is instructed to start the high-speed uplink packet access cooperative algorithm;
4. after receiving the cooperative algorithm starting information, the non-service base station starts a high-speed uplink packet access cooperative algorithm, and reports the information of Happy bit, SI and the like demodulated on the non-service wireless link to the service wireless link address of the service base station through the wireless network controller in a periodic or event triggering mode;
5. the service base station receives and utilizes information such as Happy bit, SI and the like demodulated on the non-service wireless link to carry out high-speed uplink packet access cooperative scheduling;
6. when the service base station judges that the stop condition of the high-speed uplink packet access cooperative scheduling is met, sending cooperative algorithm stop information to a non-service wireless link address of the non-service base station through a wireless network controller, and indicating the non-service base station to stop executing the high-speed uplink packet access cooperative algorithm;
7. after receiving the cooperative algorithm stop information, the non-service base station stops executing the high-speed uplink packet access cooperative algorithm, thereby stopping reporting information such as Happy bit, SI and the like demodulated on the non-service wireless link to the service base station;
8. when the non-service wireless link is deleted, the non-service base station sends non-service wireless link logout information to the service base station through the wireless network controller, and instructs the service base station to logout the wireless link newly deleted by the non-service base station and the address thereof.
The message transmission device provided by the invention is applied to a wireless network controller, the wireless network controller receives an IP datagram sent by a first base station, and decapsulates the IP datagram to obtain a lining IP datagram carrying interaction information for realizing high-speed packet access service cooperation, and then transmits the lining IP datagram to a second base station when the destination address of the lining IP datagram points to the second base station, so that the wireless network controller does not need to identify the interaction information and does not need to process the interaction information when participating in the transfer of the interaction information between the base stations, thereby reducing the processing load of the wireless network controller for realizing the high-speed packet access service cooperation between the base stations.
Further, based on the first embodiment, a second embodiment of the message transmission apparatus of the present invention is provided, which corresponds to the second embodiment of the message transmission method, in this embodiment, the transparent transmission module 30 is further configured to transmit the inner layer IP datagram to another radio network controller to which the destination address points when the destination address of the inner layer IP datagram points to another radio network controller.
It should be noted that, in this embodiment, on the basis of the foregoing first embodiment, an interworking information transmission scheme between base stations across multiple radio network controllers is added, which is only described below, and other embodiments may refer to the foregoing first embodiment, and are not described herein again.
Specifically, in the embodiment of the present invention, if an Iur interface is spanned between the first base station and the second base station, that is, if a plurality of radio network controllers are included between the first base station and the second base station, when the first base station encapsulates an IP datagram, a multi-layer IP header is encapsulated according to the number of the radio network controllers, for example, as shown in fig. 5, an Iur-X2 interface is predefined, the Iub-X2 interface implements an X2 interface function by using the Iur interface, when two radio network controllers are included between the first base station and the second base station, the encapsulated IP datagram is shown in table 2, a sub outer IP header is used to fill an IP address of the near-end radio network controller, and an outer IP header is used to fill an IP address of the far-end radio network controller.
| Outer IP head | Sub-outer layer IP head | Inner layer IP head | UDP header | Additional information | FP frame |
TABLE 2
Further, the present invention also provides a computer-readable storage medium, in an embodiment, the computer-readable storage medium stores a message transmission program, and when executed by the processor 1001, the message transmission program implements the following operations:
receiving an IP datagram sent by a first base station;
decapsulating the received IP datagram to obtain an inner layer IP datagram;
and when the destination address of the inner layer IP datagram points to the second base station, the inner layer IP datagram is transmitted to the second base station, wherein the inner layer IP datagram carries interaction information for realizing high-speed packet access service cooperation, and when the first base station is a service base station, the second base station is a non-service base station, or when the first base station is a non-service base station, the second base station is a service base station.
Further, the aforementioned mutual information includes at least one of non-service radio link registration information, non-service radio link deregistration information, cooperative algorithm start information, cooperative algorithm stop information, and cooperative algorithm data information.
Further, when the first base station is a serving base station and the second base station is a non-serving base station, when the message transmission program is executed by the processor 1001, the following operations are also implemented:
when detecting that the non-service base station establishes the non-service wireless link, configuring the address information of the service wireless link on the service base station to the non-service base station.
Further, when the interaction information is non-service wireless link registration information, the non-service wireless link registration information includes address information of a non-service wireless link established by a non-service base station.
Further, when the message transmission program is executed by the processor 1001, the following operations are also implemented:
and transmitting the inner layer IP datagram to the second base station through the MAC-d stream.
Further, when the message transmission program is executed by the processor 1001, the following operations are also implemented:
and when the destination address of the inner layer IP datagram points to other wireless network controllers, the inner layer IP datagram is transmitted to the other wireless network controllers pointed by the destination address.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention essentially or contributing to the prior art can be embodied in the form of a software product, which is stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above and includes several instructions for causing a wireless network controller to execute the method according to the corresponding embodiment of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A message transmission method is characterized by comprising the following steps:
the method comprises the steps that a wireless network controller receives an IP datagram sent by a first base station, wherein the IP datagram adopts an IPinIP message format, and an outer layer IP head fills an IP address of the wireless network controller;
decapsulating the IP datagram to obtain an inner layer IP datagram;
and when the destination address of the inner layer IP datagram points to a second base station, the inner layer IP datagram is transmitted to the second base station, wherein the inner layer IP datagram carries interaction information for realizing high-speed packet access service cooperation, and when the first base station is a service base station, the second base station is a non-service base station, or when the first base station is a non-service base station, the second base station is a service base station.
2. The message transmission method according to claim 1, wherein the interactive information includes at least one of non-serving radio link registration information, non-serving radio link de-registration information, cooperative algorithm start information, cooperative algorithm stop information, and cooperative algorithm data information.
3. The message transmission method according to claim 2, wherein before the step of receiving the IP datagram sent by the first base station when the first base station is a non-serving base station and the second base station is a serving base station, the method further comprises:
when detecting that the non-service base station establishes a non-service wireless link, configuring address information of a service wireless link on the service base station to the non-service base station.
4. The message transmission method according to claim 3, wherein when the interactive information is non-serving radio link registration information, the non-serving radio link registration information includes address information of a non-serving radio link established by the non-serving base station.
5. The message transmission method according to claim 3 or 4, further comprising:
when detecting that the service wireless link is switched, configuring address information of the switched service wireless link to the non-service base station;
or, when detecting that the high speed packet access service is reconfigured to other services, instructing the non-service base station to delete the address information of the configured service wireless link.
6. The message transmission method according to any of claims 1-4, wherein after the step of decapsulating the IP datagram to obtain a back-layer IP datagram, the method further comprises:
and when the destination address points to other wireless network controllers, the inner layer IP datagram is transmitted to other wireless network controllers pointed by the destination address.
7. A message transmission device is applied to a wireless network controller, and is characterized by comprising:
the receiving module is used for receiving an IP datagram sent by a first base station, wherein the IP datagram adopts an IPinIP message format, and an outer layer IP head fills an IP address of a wireless network controller;
the processing module is used for decapsulating the IP datagram to obtain a lining IP datagram;
and the transparent transmission module is used for transmitting the inner layer IP datagram to the second base station when the destination address of the inner layer IP datagram points to the second base station, wherein the inner layer IP datagram carries interactive information for realizing high-speed packet access service cooperation, and when the first base station is a service base station, the second base station is a non-service base station, or when the first base station is a non-service base station, the second base station is a service base station.
8. The message transmitting device according to claim 7, wherein the transparent transmission module is further configured to transmit the inner layer IP datagram through to the other radio network controller to which the destination address points, when the destination address points to the other radio network controller.
9. A radio network controller, comprising:
a memory storing a message transmission program;
a processor in communication with the memory and configured to execute the messaging program to perform the steps of:
receiving an IP datagram sent by a first base station, wherein the IP datagram adopts an IPinIP message format, and an outer layer IP head fills an IP address of a wireless network controller;
decapsulating the IP datagram to obtain an inner layer IP datagram;
and when the destination address of the inner layer IP datagram points to a second base station, the inner layer IP datagram is transmitted to the second base station, wherein the inner layer IP datagram carries interaction information for realizing high-speed packet access service cooperation, and when the first base station is a service base station, the second base station is a non-service base station, or when the first base station is a non-service base station, the second base station is a service base station.
10. A computer-readable storage medium having a messaging program stored thereon, the messaging program when executed by a processor implementing the steps of:
receiving an IP datagram sent by a first base station, wherein the IP datagram adopts an IPinIP message format, and an outer layer IP head fills an IP address of a wireless network controller;
decapsulating the IP datagram to obtain an inner layer IP datagram;
and when the destination address of the inner layer IP datagram points to a second base station, the inner layer IP datagram is transmitted to the second base station, wherein the inner layer IP datagram carries interaction information for realizing high-speed packet access service cooperation, and when the first base station is a service base station, the second base station is a non-service base station, or when the first base station is a non-service base station, the second base station is a service base station.
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