CN107950050B - Message processing method and base station - Google Patents
Message processing method and base station Download PDFInfo
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- CN107950050B CN107950050B CN201580082989.8A CN201580082989A CN107950050B CN 107950050 B CN107950050 B CN 107950050B CN 201580082989 A CN201580082989 A CN 201580082989A CN 107950050 B CN107950050 B CN 107950050B
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- H04W28/02—Traffic management, e.g. flow control or congestion control
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Abstract
A message processing method and a base station are provided, wherein the message processing method comprises the following steps: the source base station acquires a message header field of an original message from the original message, wherein the message header field comprises: an IP header field, a UDP header field, and an RTP header field; the source base station backups the message header field in the original message to obtain the original message carrying the backup message header field, wherein the backup message header field comprises: a backup IP header field, a backup UDP header field, and a backup RTP header field; the source base station compresses the original message carrying the backup message header field according to a robust header compression (ROHC) mode to obtain a compressed message carrying the backup message header field; and when User Equipment (UE) in the source base station is switched from the source base station to a target base station, the source base station sends the compressed message to the target base station.
Description
Technical Field
The embodiment of the invention relates to the field of communication, in particular to a message processing method and a base station.
Background
The Hardware acceleration engine (hereinafter, referred to as "Hardware assisted Chip" for short, HAC) may implement Robust header Compression (ROHC) on a Packet header, and the HAC is mainly used for completing Packet header Compression on Packet Data Convergence Protocol (PDCP) layer downlink Data in a Long Term Evolution (LTE) system and decompressing uplink Data in the LTE system. Through the compression of the message header, the load of the header in the message can be reduced, so that the utilization rate of an air interface can be obviously improved, and the wireless air interface rate can be improved. The ROHC may be configured to perform Cyclic Redundancy Check (CRC) on the decompressed message, and may update the compression parameter by feeding back the message through the decompression end, so that the ROHC has good robustness. For example, a typical application scenario of ROHC is Voice over Internet Protocol (VoIP).
In the prior art, the HAC receives a compressed message, which includes: PDCP header field, ROHC header field, and payload (english full name: payload), and the HAC then decompresses the compressed packet, which mainly includes the following steps: the HAC acquires a Context Identity (CID) from a ROHC head field, then calculates a Context address according to the CID, and reads a ROHC Context from a Double-Rate Synchronous Dynamic Random access memory (DDR SDRAM) according to the Context address. The HAC can acquire the type information of the compressed packet according to the information obtained by analyzing the ROHC context and the ROHC head field, the HAC can further determine the length information of the compressed packet header according to the type information of the compressed packet, the length information of the compressed packet header can be used for completely reading and analyzing the compressed packet, the HAC can recover the original header information according to the ROHC context, the type information of the compressed packet and the length information of the compressed packet, the HAC performs CRC processing on the original header information, and after the CRC processing is finished, the HAC outputs the decompressed message.
The technical scheme of the prior art for HAC message decompression at least has the following problems: the HAC acquires the ROHC context completely depending on the context address, and if the context address is lost or not established, the HAC cannot correctly analyze the compressed packet. For example, when an Evolved NodeB (hereinafter referred to as eNodeB) is reset due to an abnormality, a context address is lost, and the HAC cannot acquire an ROHC context due to the lack of the context address, so that the analysis of the compressed packet cannot be completed.
For another example, ROHC is a technology commonly used by LTE in processing VoIP data, and in a process of establishing a connection between User Equipment (UE) and an eNodeB, the UE switches an eNodeB scenario due to a fast moving speed, and the UE needs to reestablish a channel link with a new base station and disconnect the original base station. The new base station needs to recover the compressed message, but the context address of the UE is not established in the new base station at this time, so the HAC in the new base station cannot acquire the context address of the UE, and cannot decompress the compressed message. In order to solve the problem that a new base station cannot decompress a compressed message when the UE is switched, the following solutions are also provided in the prior art: in order to process the compressed message of the original base station, the new base station needs to acquire the ROHC context from the original base station through a message, so that the HAC of the new base station can complete the processing of the compressed message by using the ROHC context. This solution can present problems: the new base station needs to perform message interaction with the original base station to acquire the ROHC context, which significantly increases the time delay of the UE handover process.
Based on the above description, it is therefore necessary to redesign the decompression process of the compressed packet by the HAC.
Disclosure of Invention
The embodiment of the invention provides a message processing method and a base station, which can realize the decompression processing of a compressed message by a target base station in the UE switching process and shorten the switching time delay of UE.
In a first aspect, an embodiment of the present invention provides a method for processing a packet, including:
the source base station acquires a message header field of an original message from the original message, wherein the message header field comprises: an Internet Protocol (IP) header field, a User Datagram Protocol (UDP) header field and a real-time transport protocol (RTP) header field;
the source base station backups the message header field in the original message to obtain the original message carrying the backup message header field, wherein the backup message header field comprises: a backup IP header field, a backup UDP header field, and a backup RTP header field;
the source base station compresses the original message carrying the backup message header field according to a robust header compression (ROHC) mode to obtain a compressed message carrying the backup message header field;
and when User Equipment (UE) in the source base station is switched from the source base station to a target base station, the source base station sends the compressed message to the target base station.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the compressing, by the source base station, the original packet carrying the header field of the backup packet according to a robust header compression ROHC manner to obtain a compressed packet carrying the header field of the backup packet includes:
the source base station reads a robust header compression ROHC context from a double-rate synchronous dynamic random access memory DDR SDRAM of the source base station according to a context address;
and the source base station compresses the original message carrying the head field of the backup message according to the ROHC context to obtain a compressed message carrying the head field of the backup message.
With reference to the first aspect, in a second possible implementation manner of the first aspect, the backup packet header field is located at a tail of the compact packet.
With reference to the first aspect, in a third possible implementation manner of the first aspect, the original packet includes: a message header field and a payload;
the compact message includes: a packet data convergence protocol PDCP header field, an ROHC header field, the payload, and the backup message header field.
In a second aspect, an embodiment of the present invention further provides a method for processing a packet, where the method includes:
when User Equipment (UE) in a source base station is switched from the source base station to a target base station, the target base station receives a compressed message sent by the source base station;
the target base station acquires a backup message header field from the compressed message, wherein the backup message header field comprises: backing up an Internet Protocol (IP) header field, a User Datagram Protocol (UDP) header field and a real-time transport protocol (RTP) header field;
the target base station decompresses the compressed message according to the backup message header field to obtain an original message carrying a message header field, wherein the message header field is obtained through the backup message header field, and the message header field comprises: an IP header field, a UDP header field, and an RTP header field;
and the target base station outputs the original message carrying the message header field.
With reference to the second aspect, in a first possible implementation manner of the second aspect, the decompressing, by the target base station, the compressed packet according to the backup packet header field to obtain an original packet carrying the packet header field, where the decompressing includes:
the target base station removes the head field of the backup message from the tail part of the compressed message;
and the target base station uses the backup message header field to replace the ROHC header field in the compressed message to obtain an original message carrying the message header field.
With reference to the second aspect, in a second possible implementation manner of the second aspect, before the target base station outputs the original packet carrying the packet header field, the method further includes:
and the target base station performs Cyclic Redundancy Check (CRC) processing on the original message carrying the message header field.
With reference to the second aspect or the first possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the compact packet includes: a packet data convergence protocol PDCP header field, an ROHC header field, a load and the backup message header field;
the original message includes: the message header field and the payload.
In a third aspect, an embodiment of the present invention further provides a base station, where the base station is specifically a source base station, and the source base station includes:
an obtaining module, configured to obtain, from an original packet, a packet header field of the original packet, where the packet header field includes: an Internet Protocol (IP) header field, a User Datagram Protocol (UDP) header field and a real-time transport protocol (RTP) header field;
a backup module, configured to backup the header field of the packet in the original packet to obtain the original packet carrying the header field of the backup packet, where the header field of the backup packet includes: a backup IP header field, a backup UDP header field, and a backup RTP header field;
the compression module is used for compressing the original message carrying the backup message header field in a way of ROHC (robust header compression) to obtain a compressed message carrying the backup message header field;
and the sending module is used for sending the compressed message to the target base station when the user equipment UE in the source base station is switched from the source base station to the target base station.
With reference to the third aspect, in a first possible implementation manner of the third aspect, the compression module is specifically configured to read a robust header compression ROHC context from a double data rate synchronous dynamic random access memory DDR SDRAM of the source base station according to a context address; and compressing the original message carrying the backup message header field according to the ROHC context to obtain a compressed message carrying the backup message header field.
With reference to the third aspect, in a second possible implementation manner of the third aspect, the backup packet header field is located at a tail of the compact packet.
With reference to the third aspect, in a third possible implementation manner of the third aspect, the original packet includes: a message header field and a payload;
the compact message includes: a packet data convergence protocol PDCP header field, an ROHC header field, the payload, and the backup message header field.
In a fourth aspect, an embodiment of the present invention further provides a base station, where the base station is specifically a target base station, and the target base station includes:
a receiving module, configured to receive a compressed packet sent by a source base station when a user equipment UE in the source base station is switched from the source base station to a target base station;
an obtaining module, configured to obtain a backup packet header field from the compact packet, where the backup packet header field includes: backing up an Internet Protocol (IP) header field, a User Datagram Protocol (UDP) header field and a real-time transport protocol (RTP) header field;
a decompression module, configured to decompress the compressed packet according to the backup packet header field to obtain an original packet carrying a packet header field, where the packet header field is obtained through the backup packet header field, and the packet header field includes: an IP header field, a UDP header field, and an RTP header field;
and the sending module is used for outputting the original message carrying the message header field.
With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the decompression module is specifically configured to remove the header field of the backup packet from the tail of the compressed packet; and replacing the ROHC head field in the compressed message by using the backup message head field to obtain an original message carrying the message head field.
With reference to the fourth aspect, in a second possible implementation manner of the fourth aspect, the target base station further includes: and the Cyclic Redundancy Check (CRC) processing module is used for performing CRC processing on the original message carrying the message header field before the sending module outputs the original message carrying the message header field.
With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the compact packet includes: a packet data convergence protocol PDCP header field, an ROHC header field, a load and the backup message header field;
the original message includes: the message header field and the payload.
According to the technical scheme, the embodiment of the invention has the following advantages:
in the embodiment of the present invention, a source base station first obtains a message header field of an original message from the original message, where the message header field includes: the source base station then backs up the header field of the message in the original message to obtain the original message carrying the header field of the back-up message, wherein the header field of the back-up message comprises: and the source base station then compresses the original message carrying the head field of the backup message according to a robust header compression (ROHC) mode to obtain a compressed message carrying the head field of the backup message, and when the UE in the source base station is switched from the source base station to the target base station, the source base station sends the compressed message to the target base station. In the embodiment of the invention, the source base station carries the head field of the backup message in the compressed message, and after the compressed message is sent to the target base station, the target base station can use the head field of the backup message to decompress ROHC, so the target base station does not need to use a context address and ROHC context, and the target base station can complete decompression by using the head field of the backup message carried in the compressed message, so the target base station does not need to acquire the ROHC context from the source base station, therefore, for the target base station, when UE is switched from the source base station to the target base station, the decompression of the compressed message can be quickly realized, and the switching delay of the UE is shortened.
Drawings
Fig. 1 is a schematic flow chart of a method for generating a message according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of another message method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a system architecture of a message method application according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a process of respectively executing a message by a source base station and a target base station according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a source base station according to an embodiment of the present invention;
fig. 6-a is a schematic structural diagram of a target base station according to an embodiment of the present invention;
fig. 6-b is a schematic structural diagram of another target base station according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another source base station according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another target base station according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a message processing method and a base station, which can realize the decompression processing of a compressed message by a target base station in the UE switching process and shorten the switching time delay of UE.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one skilled in the art from the embodiments given herein are intended to be within the scope of the invention.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention and the above-described drawings are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The following are detailed below.
First, a detailed description is given to a method for processing a message according to the present invention from a message compression end (i.e., a source base station), and referring to fig. 1, the method for processing a message according to an embodiment of the present invention may specifically include the following steps:
101. the source base station acquires a message header field of the original message from the original message.
Wherein, the message header field includes: an IP header field, a UDP header field, and an RTP header field.
In the embodiment of the present invention, the source base station is a base station where the UE is located before, and the source base station is configured to compress and send an original message, where the source base station first obtains the original message, where the original message includes a header field of a message (Packet, PKT for short), and specifically, the header field of the message may include: internet Protocol (IP) header field, User Datagram Protocol (UDP) header field, and Real-time transport Protocol (RTP) header field, and the source base station triggers the execution of step 102 after acquiring the packet header field.
It should be noted that, in some embodiments of the present invention, in addition to the above-mentioned message header field, the original message acquired by the source base station further includes: load (english name: payload).
102. And the source base station backs up the header field of the message in the original message to obtain the original message carrying the header field of the backed-up message.
Wherein, the backup message header field includes: a backup IP header field, a backup UDP header field, and a backup RTP header field.
In the embodiment of the present invention, after acquiring a message header field from an original message, a source base station backs up the message header field, and then generates a new message header field defined as a backup message header field, where the backup message header field includes: the backup contents of the message header field include: a backup IP header field, a backup UDP header field, and a backup RTP header field. After the backup message header field is generated, the backup message header field is carried in the original message, and then the backup process of step 102 is performed to carry the backup message header field in the original message.
In the embodiment of the present invention, the source base station may back up the header field of the message by using an HAC in the source base station, that is, in the embodiment of the present invention, the HAC needs to add a header backup function, after the HAC acquires the original message, the HAC backs up the header field of the original message, and the HAC may generate the header field of the backup message according to the header field of the message.
It should be noted that, in the embodiment of the present invention, there may be multiple implementation manners for carrying the backup message header field in the original message, where one feasible implementation manner is that the backup message header field is located at the tail of the original message, that is, the backup message header field is added at the tail of the original message. The original message may also have other implementation manners, for example, the backup message header field is added to a specific position of the original message, and then a position identifier is added, so that the specific position where the backup message header field is added in the original message may be obtained through the position identifier.
103. And the source base station compresses the original message carrying the head field of the backup message according to the ROHC mode to obtain a compressed message.
Wherein, the compressed message carries the backup message header field.
In the embodiment of the present invention, after the original message carries the header field of the backup message, the original message is compressed by the source base station in the ROHC manner, so that a compressed message can be obtained, and the header field of the backup message is still carried in the compressed message. In some embodiments of the present invention, the compressed packet generated by the source base station may include: compared with the prior art, the embodiment of the invention has the advantages that the compressed message generated by the source base station carries the backup message header field, so that a receiving end (namely a target base station) can acquire the backup message header field from the message sent by the source base station, and the receiving end can recover the original message by using the backup message header field.
It should be noted that, in some embodiments of the present invention, if the header field of the backup packet is located at the tail of the original packet, after the original packet is compressed in step 103, the header field of the backup packet is still carried at the tail of the compressed packet. It is not limited that, after the original message carries the header field of the backup message, the compression of the original message does not change the position of the header field of the backup message in the compressed message.
In the embodiment of the present invention, the source base station may compress the original packet by using the HAC in the source base station, that is, in the embodiment of the present invention, the HAC performs a packet compression function, and after the HAC acquires the original packet carrying the header field of the backup packet, the HAC compresses the original packet in an ROHC manner, for example, the HAC may complete header compression on the downlink data of the LTE PDCP layer.
In some embodiments of the present invention, step 103, the source base station compresses the original packet carrying the header field of the backup packet in an ROHC manner to obtain a compressed packet carrying the header field of the backup packet, which may specifically include the following steps:
a1, the source base station reads ROHC context from DDR SDRAM of the source base station according to the context address;
a2, the source base station compresses the original message carrying the backup message header field according to the ROHC context, and obtains the compressed message carrying the backup message header field.
The HAC in the source base station may read an ROHC context from the DDR SDRAM of the source base station according to a context address in the context space, and then the HAC compresses the original packet carrying the header field of the backup packet using the ROHC context to obtain a compressed packet carrying the header field of the backup packet.
104. And when the UE in the source base station is switched from the source base station to the target base station, the source base station sends the compressed message to the target base station.
In the embodiment of the present invention, after the source base station generates the compressed packet carrying the header field of the backup packet, if the source base station finds that the UE is moving and the UE is switched from the source base station to the target base station, the source base station sends the compressed packet carrying the header field of the backup packet to the target base station, for example, the compressed packet carrying the header field of the backup packet may be sent between the source base station and the target base station through an X2 interface.
As can be seen from the foregoing description of the present invention, a source base station first obtains a packet header field of an original packet from the original packet, where the packet header field includes: the source base station then backs up the header field of the message in the original message to obtain the original message carrying the header field of the back-up message, wherein the header field of the back-up message comprises: and the source base station then compresses the original message carrying the head field of the backup message according to a robust header compression (ROHC) mode to obtain a compressed message carrying the head field of the backup message, and when the UE in the source base station is switched from the source base station to the target base station, the source base station sends the compressed message to the target base station. In the embodiment of the invention, the source base station carries the head field of the backup message in the compressed message, and after the compressed message is sent to the target base station, the target base station can use the head field of the backup message to decompress ROHC, so the target base station does not need to use a context address and ROHC context, and the target base station can complete decompression by using the head field of the backup message carried in the compressed message, so the target base station does not need to acquire the ROHC context from the source base station, therefore, for the target base station, when UE is switched from the source base station to the target base station, the decompression of the compressed message can be quickly realized, and the switching delay of the UE is shortened.
The foregoing embodiment describes the method for processing a message of the present invention in detail from a message compression end (i.e., a source base station), and then describes the method for processing a message of the present invention in detail from a message decompression end (i.e., a target base station), please refer to fig. 2, where the method for processing a message provided in an embodiment of the present invention specifically includes the following steps:
201. when the UE in the source base station is switched from the source base station to the target base station, the target base station receives the compressed message sent by the source base station.
In the embodiment of the invention, when the UE is switched from the source base station to the target base station, the source base station sends the compressed message to the target base station, and the target base station firstly receives the compressed message sent by the source base station.
202. And the target base station acquires the head field of the backup message from the compressed message.
Wherein, the backup message header field includes: a backup IP header field, a backup UDP header field, and a backup RTP header field.
In the embodiment of the present invention, after the target base station receives the compressed packet sent by the source base station, the target base station acquires the backup packet header field from the compressed packet, and since the source base station carries the backup packet header field in the compressed packet, and the backup packet header field is the backup content of the packet header field in the original packet, the backup packet header field can be used to restore the packet header field, and specifically, the target base station executes step 203.
It should be noted that, in the embodiment of the present invention, there may be multiple implementation manners for acquiring the header field of the backup packet in the compressed packet, where one feasible implementation manner is that the header field of the backup packet is located at the tail of the compressed packet, that is, the header field of the backup packet is acquired at the tail of the compressed packet. For example, the specific position where the backup message header field is added in the compact message may be obtained according to the position identifier.
203. And the target base station decompresses the compressed message according to the backup message header field to obtain the original message carrying the message header field.
Wherein, the message header field is obtained by backing up the message header field, and the message header field comprises: an IP header field, a UDP header field, and an RTP header field.
In this embodiment of the present invention, after the target base station acquires the header field of the backup packet from the compressed packet, the target base station may recover the header field of the packet by using the header field of the backup packet. Compared with the prior art, the target base station can acquire the backup message header field from the compressed message, and the target base station can recover the original message by using the backup message header field, so that the decompression mode of the compressed message by the target base station can be changed by using the source base station to carry the backup message header field in the compressed message, the target base station can decompress without using the ROHC context, and the target base station can complete the decompression of the compressed message by using the backup message header field.
In the embodiment of the present invention, the target base station may decompress the compressed packet by using an HAC in the target base station, that is, the HAC in the embodiment of the present invention performs a packet decompression function, and after the HAC acquires the compressed packet carrying the backup packet header field, the HAC decompresses the compressed packet by using the backup packet header field, for example, the HAC may complete header decompression on LTE uplink data.
It should be noted that, in some embodiments of the present invention, if the header field of the backup packet is located at the tail of the compressed packet, the target base station decompresses the compressed packet according to the header field of the backup packet in step 203 to obtain the original packet carrying the header field of the packet, which may specifically include the following steps:
b1, the target base station removes the head field of the backup message from the tail part of the compressed message;
b2, the target base station uses the backup message header field to replace the ROHC header field in the compressed message, and obtains the original message carrying the message header field.
The compressed packet acquired by the target base station may include: the method comprises the following steps that PDCP header fields, ROHC header fields, loads and backup message header fields, the HAC in the target base station firstly removes the backup message header fields from the tail of the compressed message, then replaces the ROHC header fields in the compressed message with the backup message header fields, so that the HAC completes decompression of the compressed message and can generate an original message carrying the message header fields, wherein the implementation modes of the steps B1 to B2 take the example that the backup message header fields are added to the tail of the compressed message, for the other positions of the compressed message, the HAC in the target base station can acquire the backup message header fields according to position identification, and then decompresses the message according to the backup message header fields.
204. And the target base station outputs the original message carrying the message header field.
In this embodiment of the present invention, after the target base station decompresses the compressed packet by using the backup packet header field to obtain the original packet carrying the packet header field, the target base station outputs the original packet carrying the packet header field, and the target base station may perform subsequent processing on the original packet, where one possible implementation manner is that before the target base station outputs the original packet carrying the packet header field in step 204, the packet processing method provided in this embodiment of the present invention may further include the following steps:
and C1, the target base station performs CRC processing on the original message carrying the message header field.
The HAC in the target base station can perform CRC processing on the decompressed original message, and can update the compression parameters by feeding back the message through the decompression end, so the message processing method provided by the embodiment of the present invention has higher robustness.
As can be seen from the foregoing description of the present invention, when the UE in the source base station is switched from the source base station to the target base station, the target base station receives a compact packet sent by the source base station, and the target base station obtains a backup packet header field from the compact packet, where the backup packet header field includes: the method comprises the following steps of backing up an Internet Protocol (IP) header field, a User Datagram Protocol (UDP) header field and a real-time transport protocol (RTP) header field, decompressing a compressed message by a target base station according to the backup message header field to obtain an original message carrying the message header field, wherein the message header field is obtained by the backup message header field and comprises the following steps: IP header field, UDP header field and RTP header field, the target base station outputs the original message carrying the message header field. In the embodiment of the invention, the source base station carries the head field of the backup message in the compressed message, and after the compressed message is sent to the target base station, the target base station can use the head field of the backup message to decompress ROHC, so the target base station does not need to use a context address and ROHC context, and the target base station can complete decompression by using the head field of the backup message carried in the compressed message, so the target base station does not need to acquire the ROHC context from the source base station, therefore, for the target base station, when UE is switched from the source base station to the target base station, the decompression of the compressed message can be quickly realized, and the switching delay of the UE is shortened.
In order to better understand and implement the above-mentioned schemes of the embodiments of the present invention, the following description specifically illustrates corresponding application scenarios.
The message processing method provided by the embodiment of the invention can realize the requirement of rapid ROHC reduction of the compressed message, can solve the problem that the message compressed by the source base station cannot be decompressed and reduced at the target base station side after the UE switches the base stations, enhances the ROHC robustness, shortens the UE switching processing time delay and improves the operation efficiency of the whole system. The message processing method provided by the embodiment of the invention can be used for ROHC in a UE switching scene, does not depend on a context address, and can quickly restore an ROHC compressed message.
Taking a scenario of UE switching applied in an LTE network as an example, please refer to fig. 3, which is a schematic diagram of a system architecture applied in the method for providing a message according to an embodiment of the present invention, a source base station and a target base station are connected via an X2 INTERFACE or an INTERFACE (overall name: INTERFACE, abbreviated as ITF), the source base station performs processing on a General Packet Radio Service tunneling protocol User Plane (overall name: General Packet Radio Service tunneling protocol User Plane, abbreviated as GTPU) layer, a PDCP layer, a Radio link Control (overall name: Radio link Control, abbreviated as RLC) layer, a Media Access Control (overall name: Media Access Control, abbreviated as MAC) layer on an original message, the source base station transmits a fwdl (overall name: FORWARD) DL GTPU message to the target base station, the target base station receives the GTPU message, and the target base station processes the GTPU layer, the PDCP layer, the RLC layer and the MAC layer on the received DL FWD GTPU message. When the UE is switched and establishes channel connection with a target base station, a PDCP protocol layer data stream needs to be forwarded from a switching source side to a switching destination side. The data compressed by the HAC at the source base station side needs to be decompressed and restored at the target base station side.
Please refer to fig. 4, which is a schematic diagram illustrating a process of a source base station and a target base station respectively executing a message according to an embodiment of the present invention.
The source base station performs compression processing:
on the base band board of the source base station, the HAC adds a message header backup function, the HAC can configure a register according to an instruction, the HAC writes data according to the register configuration, and a backup message header field is written into a specified position before compression. The original message includes: PKT header field and load, HAC compresses the original message according to the context address to obtain the compressed message, said compressed message includes: PDCP header field, ROHC header field, payload, and backup PKT header fields.
The target base station performs decompression processing:
when the message is switched and transferred to the base band board of another base station, when the HAC of the target base station decompresses the compressed message, the backup message head field at the tail part of the compressed message is copied to cover the ROHC head field, and the decompression and recovery of the compressed message are completed. The compact message includes: PDCP header field, ROHC header field, payload and backup PKT header field, the original message including: PKT header fields and payload.
As can be seen from the foregoing description of the embodiments of the present invention, the HAC compressor in the embodiments of the present invention has a header backup function, and the HAC decompressor can decompress a packet without depending on the ROHC context, and recover an original header from the header backup area. Therefore, the embodiment of the invention can solve the problem that the message can not be decompressed and restored when the VOIP data enters a base station switching scene after ROHC HAC compression processing. The robustness of ROHC applications is improved. Because the HAC can still be used for processing the message before and after the switching process, the switching time delay of the UE is shortened, and the risk of the reduction of the user experience satisfaction caused by the switching time delay can be effectively reduced.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
To facilitate a better implementation of the above-described aspects of embodiments of the present invention, the following also provides relevant means for implementing the above-described aspects.
Referring to fig. 5, a base station according to an embodiment of the present invention is specifically a source base station, and the source base station 500 may include: an acquisition module 501, a backup module 502, a compression module 503, and a sending module 504, wherein,
an obtaining module 501, configured to obtain, from an original packet, a packet header field of the original packet, where the packet header field includes: an Internet Protocol (IP) header field, a User Datagram Protocol (UDP) header field and a real-time transport protocol (RTP) header field;
a backup module 502, configured to backup the header field of the packet in the original packet to obtain the original packet carrying the header field of the backup packet, where the header field of the backup packet includes: a backup IP header field, a backup UDP header field, and a backup RTP header field;
a compressing module 503, configured to compress the original packet carrying the backup packet header field in a way of robust header compression ROHC to obtain a compressed packet, where the compressed packet carries the backup packet header field;
a sending module 504, configured to send the compressed packet to a target base station when a user equipment UE in the source base station is handed over from the source base station to the target base station.
In some embodiments of the present invention, the compressing module 503 is specifically configured to read a robust header compression ROHC context from a double data rate synchronous dynamic random access memory DDR SDRAM of the source base station according to a context address; and compressing the original message carrying the backup message header field according to the ROHC context to obtain a compressed message carrying the backup message header field.
In some embodiments of the present invention, the backup packet header field is located at the end of the compact packet.
In some embodiments of the present invention, the original packet includes: a message header field and a payload;
the compact message includes: a packet data convergence protocol PDCP header field, an ROHC header field, the payload, and the backup message header field.
As can be seen from the foregoing description of the present invention, a source base station first obtains a packet header field of an original packet from the original packet, where the packet header field includes: the source base station then backs up the header field of the message in the original message to obtain the original message carrying the header field of the back-up message, wherein the header field of the back-up message comprises: and the source base station then compresses the original message carrying the head field of the backup message according to a robust header compression (ROHC) mode to obtain a compressed message carrying the head field of the backup message, and when the UE in the source base station is switched from the source base station to the target base station, the source base station sends the compressed message to the target base station. In the embodiment of the invention, the source base station carries the head field of the backup message in the compressed message, and after the compressed message is sent to the target base station, the target base station can use the head field of the backup message to decompress ROHC, so the target base station does not need to use a context address and ROHC context, and the target base station can complete decompression by using the head field of the backup message carried in the compressed message, so the target base station does not need to acquire the ROHC context from the source base station, therefore, for the target base station, when UE is switched from the source base station to the target base station, the decompression of the compressed message can be quickly realized, and the switching delay of the UE is shortened.
Referring to fig. 6-a, a base station, specifically a target base station, and a target base station 600 according to an embodiment of the present invention may include: a receiving module 601, an obtaining module 602, a decompressing module 603, and a sending module 604, wherein,
a receiving module 601, configured to receive a compressed packet sent by a source base station when a user equipment UE in the source base station is switched from the source base station to a target base station;
an obtaining module 602, configured to obtain a backup packet header field from the compact packet, where the backup packet header field includes: backing up an Internet Protocol (IP) header field, a User Datagram Protocol (UDP) header field and a real-time transport protocol (RTP) header field;
a decompressing module 603, configured to decompress the compressed packet according to the backup packet header field to obtain an original packet carrying a packet header field, where the packet header field is obtained through the backup packet header field, and the packet header field includes: an IP header field, a UDP header field, and an RTP header field;
a sending module 604, configured to output the original packet carrying the packet header field.
In some embodiments of the present invention, the decompression module 603 is specifically configured to remove the header field of the backup packet from the end of the compressed packet; and replacing the ROHC head field in the compressed message by using the backup message head field to obtain an original message carrying the message head field.
In some embodiments of the present invention, referring to fig. 6-b, the target base station 600 further includes: a cyclic redundancy check CRC processing module 605, configured to perform CRC processing on the original packet with the packet header field before the sending module 604 outputs the original packet with the packet header field.
In some embodiments of the present invention, the compact packet includes: a packet data convergence protocol PDCP header field, an ROHC header field, a load and the backup message header field;
the original message includes: the message header field and the payload.
As can be seen from the foregoing description of the present invention, when the UE in the source base station is switched from the source base station to the target base station, the target base station receives a compact packet sent by the source base station, and the target base station obtains a backup packet header field from the compact packet, where the backup packet header field includes: the method comprises the following steps of backing up an Internet Protocol (IP) header field, a User Datagram Protocol (UDP) header field and a real-time transport protocol (RTP) header field, decompressing a compressed message by a target base station according to the backup message header field to obtain an original message carrying the message header field, wherein the message header field is obtained by the backup message header field and comprises the following steps: IP header field, UDP header field and RTP header field, the target base station outputs the original message carrying the message header field. In the embodiment of the invention, the source base station carries the head field of the backup message in the compressed message, and after the compressed message is sent to the target base station, the target base station can use the head field of the backup message to decompress ROHC, so the target base station does not need to use a context address and ROHC context, and the target base station can complete decompression by using the head field of the backup message carried in the compressed message, so the target base station does not need to acquire the ROHC context from the source base station, therefore, for the target base station, when UE is switched from the source base station to the target base station, the decompression of the compressed message can be quickly realized, and the switching delay of the UE is shortened.
It should be noted that, because the contents of information interaction, execution process, and the like between the modules/units of the apparatus are based on the same concept as the method embodiment of the present invention, the technical effect brought by the contents is the same as the method embodiment of the present invention, and specific contents may refer to the description in the foregoing method embodiment of the present invention, and are not described herein again.
An embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a program, and the program executes some or all of the steps described in the above method embodiments.
Referring to fig. 7, a source base station 700 includes:
an input device 701, an output device 702, a processor 703 and a memory 704 (wherein the number of processors 703 in the source base station 700 may be one or more, one processor is taken as an example in fig. 7). In some embodiments of the present invention, the input device 701, the output device 702, the processor 703 and the memory 704 may be connected by a bus or other means, wherein the connection by the bus is exemplified in fig. 7.
The processor 703 is configured to execute the following steps:
acquiring a message header field of an original message from the original message, wherein the message header field comprises: an Internet Protocol (IP) header field, a User Datagram Protocol (UDP) header field and a real-time transport protocol (RTP) header field;
backing up the message header field in the original message to obtain the original message carrying the backup message header field, wherein the backup message header field comprises: a backup IP header field, a backup UDP header field, and a backup RTP header field;
compressing the original message carrying the backup message header field in a robust header compression (ROHC) manner to obtain a compressed message carrying the backup message header field;
and when the user equipment UE in the source base station is switched from the source base station to a target base station, sending the compressed message to the target base station.
In some embodiments of the present invention, the processor 703 is specifically configured to perform the following steps:
reading a robust header compression (ROHC) context from a double-data-rate synchronous dynamic random access memory (DDR SDRAM) of the source base station according to the context address;
and compressing the original message carrying the backup message header field according to the ROHC context to obtain a compressed message carrying the backup message header field.
In some embodiments of the present invention, the backup packet header field stored in memory 704 is located at the end of the compact packet.
In some embodiments of the present invention, the original packet stored in the memory 704 includes: a message header field and a payload;
the compact message includes: a packet data convergence protocol PDCP header field, an ROHC header field, the payload, and the backup message header field.
As can be seen from the foregoing description of the present invention, a source base station first obtains a packet header field of an original packet from the original packet, where the packet header field includes: the source base station then backs up the header field of the message in the original message to obtain the original message carrying the header field of the back-up message, wherein the header field of the back-up message comprises: and the source base station then compresses the original message carrying the head field of the backup message according to a robust header compression (ROHC) mode to obtain a compressed message carrying the head field of the backup message, and when the UE in the source base station is switched from the source base station to the target base station, the source base station sends the compressed message to the target base station. In the embodiment of the invention, the source base station carries the head field of the backup message in the compressed message, and after the compressed message is sent to the target base station, the target base station can use the head field of the backup message to decompress ROHC, so the target base station does not need to use a context address and ROHC context, and the target base station can complete decompression by using the head field of the backup message carried in the compressed message, so the target base station does not need to acquire the ROHC context from the source base station, therefore, for the target base station, when UE is switched from the source base station to the target base station, the decompression of the compressed message can be quickly realized, and the switching delay of the UE is shortened.
Referring to fig. 8, a target base station 800 includes:
an input device 801, an output device 802, a processor 803 and a memory 804 (wherein the number of processors 803 in the target base station 800 may be one or more, one processor is taken as an example in fig. 8). In some embodiments of the present invention, the input device 801, the output device 802, the processor 803 and the memory 804 may be connected by a bus or other means, wherein the bus connection is taken as an example in fig. 8.
The processor 803 is configured to perform the following steps:
when User Equipment (UE) in a source base station is switched from the source base station to a target base station, receiving a compressed message sent by the source base station;
obtaining a backup message header field from the compact message, wherein the backup message header field comprises: backing up an Internet Protocol (IP) header field, a User Datagram Protocol (UDP) header field and a real-time transport protocol (RTP) header field;
decompressing the compressed packet according to the backup packet header field to obtain an original packet carrying a packet header field, where the packet header field is obtained through the backup packet header field, and the packet header field includes: an IP header field, a UDP header field, and an RTP header field;
and outputting the original message carrying the message header field.
In some embodiments of the present invention, the processor 803 is specifically configured to perform the following steps:
removing the backup message header field from the tail of the compressed message;
and replacing the ROHC head field in the compressed message by using the backup message head field to obtain an original message carrying the message head field.
In some embodiments of the present invention, the processor 803 is further configured to perform the following steps: and before outputting the original message carrying the message header field, performing Cyclic Redundancy Check (CRC) processing on the original message carrying the message header field.
In some embodiments of the present invention, the compressed packet stored in the memory 804 includes: a packet data convergence protocol PDCP header field, an ROHC header field, a load and the backup message header field; the original message includes: the message header field and the payload.
As can be seen from the foregoing description of the present invention, when the UE in the source base station is switched from the source base station to the target base station, the target base station receives a compact packet sent by the source base station, and the target base station obtains a backup packet header field from the compact packet, where the backup packet header field includes: the method comprises the following steps of backing up an Internet Protocol (IP) header field, a User Datagram Protocol (UDP) header field and a real-time transport protocol (RTP) header field, decompressing a compressed message by a target base station according to the backup message header field to obtain an original message carrying the message header field, wherein the message header field is obtained by the backup message header field and comprises the following steps: IP header field, UDP header field and RTP header field, the target base station outputs the original message carrying the message header field. In the embodiment of the invention, the source base station carries the head field of the backup message in the compressed message, and after the compressed message is sent to the target base station, the target base station can use the head field of the backup message to decompress ROHC, so the target base station does not need to use a context address and ROHC context, and the target base station can complete decompression by using the head field of the backup message carried in the compressed message, so the target base station does not need to acquire the ROHC context from the source base station, therefore, for the target base station, when UE is switched from the source base station to the target base station, the decompression of the compressed message can be quickly realized, and the switching delay of the UE is shortened.
It should be noted that the above-described embodiments of the apparatus are merely schematic, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus necessary general hardware, and may also be implemented by special hardware including special integrated circuits, special CPUs, special memories, special components and the like. Generally, functions performed by computer programs can be easily implemented by corresponding hardware, and specific hardware structures for implementing the same functions may be various, such as analog circuits, digital circuits, or dedicated circuits. However, the implementation of a software program is a more preferable embodiment for the present invention. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a readable storage medium, such as a floppy disk, a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk of a computer, and includes instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
In summary, the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the above embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the above embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (14)
1. A method for processing a message is characterized by comprising the following steps:
the source base station acquires a message header field of an original message from the original message, wherein the message header field comprises: an Internet Protocol (IP) header field, a User Datagram Protocol (UDP) header field and a real-time transport protocol (RTP) header field;
the source base station backups the message header field in the original message to obtain the original message carrying the backup message header field, wherein the backup message header field comprises: a backup IP header field, a backup UDP header field, and a backup RTP header field;
the source base station compresses the original message carrying the backup message header field according to a robust header compression (ROHC) mode to obtain a compressed message carrying the backup message header field;
when User Equipment (UE) in the source base station is switched from the source base station to a target base station, the source base station sends the compressed message to the target base station;
the source base station compresses the original packet carrying the header field of the backup packet in a way of robust header compression ROHC to obtain a compressed packet carrying the header field of the backup packet, including:
the source base station reads a robust header compression (ROHC) context from a double-rate synchronous dynamic random access memory (DDRSDRAM) of the source base station according to a context address;
and the source base station compresses the original message carrying the head field of the backup message according to the ROHC context to obtain a compressed message carrying the head field of the backup message.
2. The method of claim 1, wherein the backup packet header field is located at the end of the compact packet.
3. The method of claim 1, wherein the original packet comprises: a message header field and a payload;
the compact message includes: a packet data convergence protocol PDCP header field, an ROHC header field, the payload, and the backup message header field.
4. A method for processing a message is characterized by comprising the following steps:
when User Equipment (UE) in a source base station is switched from the source base station to a target base station, the target base station receives a compressed message sent by the source base station;
the target base station acquires a backup message header field from the compressed message, wherein the backup message header field comprises: backing up an Internet Protocol (IP) header field, a User Datagram Protocol (UDP) header field and a real-time transport protocol (RTP) header field;
the target base station decompresses the compressed message according to the backup message header field to obtain an original message carrying a message header field, wherein the message header field is obtained through the backup message header field, and the message header field comprises: an IP header field, a UDP header field, and an RTP header field;
and the target base station outputs the original message carrying the message header field.
5. The method according to claim 4, wherein the target base station decompresses the compressed packet according to the backup packet header field to obtain an original packet carrying the packet header field, and the method comprises:
the target base station removes the head field of the backup message from the tail part of the compressed message;
and the target base station uses the backup message header field to replace the ROHC header field in the compressed message to obtain an original message carrying the message header field.
6. The method of claim 5, wherein before the target base station outputs the original message carrying the message header field, the method further comprises:
and the target base station performs Cyclic Redundancy Check (CRC) processing on the original message carrying the message header field.
7. The method of claim 4, wherein the compact messaging comprises: a packet data convergence protocol PDCP header field, an ROHC header field, a load and the backup message header field;
the original message includes: the message header field and the payload.
8. A base station, wherein the base station is specifically a source base station, and the source base station includes:
an obtaining module, configured to obtain, from an original packet, a packet header field of the original packet, where the packet header field includes: an Internet Protocol (IP) header field, a User Datagram Protocol (UDP) header field and a real-time transport protocol (RTP) header field;
a backup module, configured to backup the header field of the packet in the original packet to obtain the original packet carrying the header field of the backup packet, where the header field of the backup packet includes: a backup IP header field, a backup UDP header field, and a backup RTP header field;
the compression module is used for compressing the original message carrying the backup message header field in a way of ROHC (robust header compression) to obtain a compressed message carrying the backup message header field;
a sending module, configured to send the compressed packet to a target base station when a user equipment UE in the source base station is switched from the source base station to the target base station;
the compression module is specifically configured to read a robust header compression ROHC context from a double data rate synchronous dynamic random access memory DDR SDRAM of the source base station according to a context address; and compressing the original message carrying the backup message header field according to the ROHC context to obtain a compressed message carrying the backup message header field.
9. The base station of claim 8, wherein the backup packet header field is located at the end of the compact packet.
10. The base station of claim 8, wherein the original message comprises: a message header field and a payload;
the compact message includes: a packet data convergence protocol PDCP header field, an ROHC header field, the payload, and the backup message header field.
11. A base station, wherein the base station is specifically a target base station, and the target base station includes:
a receiving module, configured to receive a compressed packet sent by a source base station when a user equipment UE in the source base station is switched from the source base station to a target base station;
an obtaining module, configured to obtain a backup packet header field from the compact packet, where the backup packet header field includes: backing up an Internet Protocol (IP) header field, a User Datagram Protocol (UDP) header field and a real-time transport protocol (RTP) header field;
a decompression module, configured to decompress the compressed packet according to the backup packet header field to obtain an original packet carrying a packet header field, where the packet header field is obtained through the backup packet header field, and the packet header field includes: an IP header field, a UDP header field, and an RTP header field;
and the sending module is used for outputting the original message carrying the message header field.
12. The base station according to claim 11, wherein the decompression module is specifically configured to remove the backup packet header field from the end of the compressed packet; and replacing the ROHC head field in the compressed message by using the backup message head field to obtain an original message carrying the message head field.
13. The base station of claim 11, wherein the target base station further comprises: and the Cyclic Redundancy Check (CRC) processing module is used for performing CRC processing on the original message carrying the message header field before the sending module outputs the original message carrying the message header field.
14. The base station of claim 11, wherein the compact packet comprises: a packet data convergence protocol PDCP header field, an ROHC header field, a load and the backup message header field;
the original message includes: the message header field and the payload.
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| PCT/CN2015/089118 WO2017041223A1 (en) | 2015-09-08 | 2015-09-08 | Packet processing method and base station |
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| CN113784389B (en) * | 2020-06-09 | 2024-01-30 | 大唐移动通信设备有限公司 | Data processing method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101212404A (en) * | 2006-12-27 | 2008-07-02 | 大唐移动通信设备有限公司 | Robust header compressed group data transmission method and system |
| CN101527670A (en) * | 2008-03-04 | 2009-09-09 | 华为技术有限公司 | Configuration method and device for full header information message |
| CN102413506A (en) * | 2010-09-20 | 2012-04-11 | 华为技术有限公司 | Compression method and device |
| CN103428246A (en) * | 2012-05-21 | 2013-12-04 | 中兴通讯股份有限公司 | Method and terminal for retransmitting uplink IP package through packet data convergence protocol layer |
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| US7733867B2 (en) * | 2005-08-26 | 2010-06-08 | Alcatel-Lucent Usa Inc. | Header compression for real time internet applications |
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| CN101212404A (en) * | 2006-12-27 | 2008-07-02 | 大唐移动通信设备有限公司 | Robust header compressed group data transmission method and system |
| CN101527670A (en) * | 2008-03-04 | 2009-09-09 | 华为技术有限公司 | Configuration method and device for full header information message |
| CN102413506A (en) * | 2010-09-20 | 2012-04-11 | 华为技术有限公司 | Compression method and device |
| CN103428246A (en) * | 2012-05-21 | 2013-12-04 | 中兴通讯股份有限公司 | Method and terminal for retransmitting uplink IP package through packet data convergence protocol layer |
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