WO2015176208A1

WO2015176208A1 - Data packet forwarding processing method and device

Info

Publication number: WO2015176208A1
Application number: PCT/CN2014/077791
Authority: WO
Inventors: 陈育华; 张伟; 彭程晖
Original assignee: 华为技术有限公司
Priority date: 2014-05-19
Filing date: 2014-05-19
Publication date: 2015-11-26
Also published as: CN105874755B; CN105874755A

Abstract

A data packet forwarding processing method and device. The method comprises: receiving a data packet; matching the data packet with a locally stored matching rule, and if it is learnt by judgement that the data packet matches one entry in the locally stored matching rule, forwarding the data packet according to the entry, wherein the matching rule comprises a plurality of entries, and each of the entries comprises an index value used for judging whether the data packet matches the entry and an operation instruction corresponding to the index value and used for instructing how to process the data packet. The matching of a received data packet and a matching rule is performed by a gateway or a base station, and the data packet is forwarded according to an operation instruction in a matched entry without forwarding the data packet through a GTP tunnel, thereby saving the network signalling overhead and bearer resources, and reducing the consumption of LTE network resources.

Description

Packet forwarding processing method and device

Technical field

The embodiments of the present invention relate to communication technologies, and in particular, to a data packet forwarding processing method and apparatus. Background technique

Long Term Evolution (LTE) is a Universal Mobile Communication System (Universal Mobi le Tecommunicat ions System) based on the 3rd Generation Partnership Project (3GPP). Evolution. The service flow is forwarded through a pre-established bearer channel between the network elements in the LTE network, such as a GTP tunnel based on the GPRS Tunneling Protocol (GTP). The GTP tunnel can guarantee the service quality of the service flow (Quality of Service). , referred to as QoS) requirements.

However, in an LTE network, not all service flows require QoS guarantee. For service flows that do not require QoS guarantee, a GTP tunnel is also required to be established through the GTP encapsulation/decapsulation protocol stack processing mechanism, resulting in large LTE network resource consumption. Summary of the invention

Embodiments of the present invention provide a data packet forwarding processing method and apparatus to reduce LTE network resource consumption.

An aspect of the embodiments of the present invention provides a data packet forwarding processing method, including: receiving a data packet;

Matching the data packet with a locally stored matching rule, and if it is determined that the data packet matches a table entry in the locally stored matching rule, forwarding the data packet according to the entry; The matching rule includes a plurality of entries, the entry includes an index value for determining whether to match the entry, and an operation corresponding to the index value for indicating how to process the data packet Instructions.

Another aspect of the embodiments of the present invention provides a data packet forwarding processing method, including: receiving, by a base station, an IP data packet sent by a network side, according to a locally stored GTP tunnel parameter pair The IP data packet is GTP-encapsulated, and after the UDP encapsulation and IP encapsulation are performed to obtain the pre-processed IP data packet, the pre-processed IP data packet is sent to the protocol stack for processing.

Another aspect of the embodiments of the present invention provides a packet forwarding processing method, including: performing, by a base station, PDCP decapsulation of a PDCP data packet sent by a user terminal to obtain a first IP data packet, and then sending the packet to the protocol stack for GTP encapsulation and UDP encapsulation and IP encapsulation obtain a second IP data packet, perform UDP decapsulation and IP decapsulation on the second IP digital packet, and perform GTP decapsulation according to locally stored GTP tunnel parameters to obtain the first IP data packet. The gateway sent to the foreign domain or the opposite base station of the domain.

Another aspect of the embodiments of the present invention provides a base station, including:

a receiving module, configured to receive a data packet;

a matching module, configured to match the data packet received by the receiving module with a locally stored matching rule, and if it is determined that the data packet matches a table entry in a locally stored matching rule, according to the The entry is forwarded to the data packet, where the matching rule includes multiple entries, and the entry includes an index value for determining whether the entry matches the entry, and corresponding to the index value. An operation instruction for indicating how to process the data packet.

Another aspect of the embodiments of the present invention provides a gateway, including:

a receiving module, configured to receive a data packet;

a receiving module, configured to receive an IP data packet sent by the network side;

a pre-processing module, configured to perform GTP encapsulation on the IP data packet according to a locally stored GTP tunnel parameter, and obtain a pre-processed IP data packet by performing UDP encapsulation and IP encapsulation to obtain the pre-processed IP data packet. Send to the protocol stack for processing.

a decapsulation module, configured to perform PDCP decapsulation on a PDCP data packet sent by the user terminal to obtain a first IP data packet; a packaging module, configured to perform GTP encapsulation, UDP encapsulation, and IP encapsulation on the first IP data packet to obtain a second IP data packet;

a pre-processing module, configured to perform UDP decapsulation and IP decapsulation on the second IP digital package, and perform GTP decapsulation according to locally stored GTP tunnel parameters, to obtain a gateway for sending the first IP data packet to an external domain or The peer base station of this domain.

Another aspect of the embodiments of the present invention provides a base station, including a receiver and a processor, where:

The receiver is configured to receive a data packet;

The processor is configured to match the data packet received by the receiving module with a locally stored matching rule, and if it is determined that the data packet matches an entry in a locally stored matching rule, according to the The entry is forwarded to the data packet, where the matching rule includes multiple entries, and the entry includes an index value for determining whether the entry matches the entry, and corresponding to the index value. An operation instruction for indicating how to process the data packet.

Another aspect of an embodiment of the present invention is to provide a gateway, including a receiver and a processor, where:

The receiver is configured to receive a data packet;

The receiver is configured to receive an IP data packet sent by a network side;

The processor is configured to perform GTP encapsulation on the IP data packet according to a locally stored GTP tunnel parameter, and obtain a preprocessed IP data packet by performing UDP encapsulation and IP encapsulation, and then sending the preprocessed IP data packet. Go to the protocol stack for processing.

Another aspect of the embodiments of the present invention provides a base station, including a processor and a transmitter, where:

The processor is configured to perform PDCP decapsulation on a PDCP data packet sent by a user terminal. Obtaining a first IP data packet; performing a GTP encapsulation and UDP encapsulation and IP encapsulation on the first IP data packet to obtain a second IP data packet; and performing UDP decapsulation and IP decapsulation on the second IP digital packet, And performing GTP decapsulation according to locally stored GTP tunnel parameters, to obtain the first IP data packet;

The transmitter is configured to send the first IP data packet to a gateway of an external domain or a peer base station of the local domain.

Another aspect of an embodiment of the present invention is to provide a packet forwarding processing system including the base station and the gateway.

The data packet forwarding processing method and device provided by the embodiment of the present invention, the gateway or the base station matches the received data packet with the matching rule, and forwards the data packet according to the operation instruction in the matched entry, and does not need to The data packet is forwarded through the GTP tunnel, which saves network signaling overhead and bearer resources, and reduces LTE network resource consumption. DRAWINGS

FIG. 1 is a flowchart of a data packet forwarding processing method according to an embodiment of the present invention;

2 is a network topology diagram applicable to a data packet forwarding processing method according to an embodiment of the present invention;

3 is a structural diagram of a base station according to another embodiment of the present invention;

4 is a structural diagram of a base station according to another embodiment of the present invention;

FIG. 5 is a structural diagram of a gateway according to another embodiment of the present invention;

FIG. 6 is a structural diagram of a base station according to another embodiment of the present invention;

FIG. 7 is a structural diagram of a base station according to another embodiment of the present invention;

FIG. 8 is a structural diagram of a packet forwarding processing system according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings to be used in the embodiments will be briefly described below. Some embodiments of the invention may be obtained by those of ordinary skill in the art in view of the drawings without additional inventive labor.

The terms used in the embodiments of the present invention are for the purpose of describing a particular embodiment only, and It is not intended to limit the invention. The singular forms "a", "the" and "the" It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It is to be understood that the term "comprising", used herein, is intended to mean the presence of the features, the whole, the steps, the operation, the components and/or components, and does not exclude one or more other features, The presence or addition of operations, components, components, and/or groups thereof.

It should be understood that although the terms first, second, etc. may be used to describe various positioning devices in embodiments of the invention, these positioning devices should not be limited to these terms. These terms are only used to distinguish positioning devices from each other. For example, the first bit device may also be referred to as a second positioning device without departing from the scope of the embodiments of the present invention. Similarly, the second positioning device may also be referred to as a first positioning device.

Software Def ined Network (SDN) is a new type of network architecture that uses network software programmable technology to deploy processing rules on network element devices, so that network element devices can be processed by protocol stacks that are not encapsulated/decapsulated by GTP. The mechanism forwards the data packets that meet the processing rules, and saves network signaling overhead and bears resources. FIG. 1 is a flowchart of a packet forwarding processing method according to an embodiment of the present invention. The SDN processing mechanism is applied to an LTE network to reduce LTE network resource consumption. The specific packet forwarding processing method is as follows:

Step S101: Receive a data packet;

Step S102: Match the data packet with a locally stored matching rule, and if it is determined that the data packet matches a table entry in the locally stored matching rule, the data packet is compared according to the table entry. Forwarding; wherein the matching rule includes multiple entries, where the entry includes an index value for determining whether to match the entry, and corresponding to the index value, indicating how to process the An indication of the operation of the packet.

FIG. 2 is a network topology diagram applicable to a packet forwarding processing method according to an embodiment of the present invention. The network element in the LTE network, such as the base station or the gateway, receives the matching rule sent by the controller in the LTE network before receiving the data packet, where the matching rule is that the controller determines the service according to the attribute information of the service requested by the user terminal. The rules are delivered to the base station or the gateway when the GTP tunnel is not forwarded. The details are as follows: Step S201: The user terminal sends a service request to the server.

When the user terminal needs to obtain service data, the network element, such as the base station and the gateway, sends a service request to the server.

Step S202: The server determines a service attribute.

The server determines the attributes of the service that the user terminal needs to obtain according to the service request.

Step S203: The server sends a service attribute to the controller.

The server sends the determined service attributes to the controller.

Step S204: The controller generates a matching rule according to the service attribute.

The controller determines, according to the service attribute, that the service does not need to be forwarded through the GTP tunnel, and generates matching rules configured on the gateway and the base station respectively.

Step S205: The controller sends a matching rule to the gateway.

The controller sends a matching rule configured on the gateway to the gateway.

Step S206: The controller sends a matching rule to the base station.

The controller sends a matching rule configured on the base station to the base station.

Based on the foregoing steps S201-S206, the network element and the base station are respectively configured with corresponding matching rules, and after receiving the data packet, the network element or the base station matches the data packet with the locally stored matching rule, and the matching rule may be The method includes a plurality of entries, each of which includes an index value and an operation indication corresponding to the index value, where the index value is used to determine whether the data packet matches the entry, and the operation indication is used to indicate that the data packet matches the entry How to process the data packet; the index value of each entry may be an IP quintuple, a destination IP, a source IP, a destination port number, a source port number, or any combination thereof, but the premise is not carried with a GTP encapsulation. The IP quintuple, destination IP, source IP, destination port number, source port number, or any combination thereof corresponding to the outer IP header information of the data packet is the same, ensuring that the GTP encapsulated data packet cannot be matched to the network element or the base station. The matching rule, because the data packet carrying the GTP encapsulation needs to be forwarded through the GTP tunnel, and the embodiment of the present invention is performed on the data packet without the GTP encapsulation. hair. If the network element or the base station determines that the data packet matches a table entry in the locally stored matching rule, the data packet is forwarded according to the operation indication in the entry.

In the embodiment of the present invention, the received data packet is matched with the matching rule by the gateway or the base station, and the data packet is forwarded according to the operation indication in the matched entry, and the data packet is not required to be forwarded through the GTP tunnel, thereby saving the network. Signaling overhead and bearer resources, reducing LTE network LF.

In the base station of the foregoing embodiment, for the base station, if the data packet is an IP data packet sent by the network side, correspondingly, if the determining is that the data packet is related to a locally stored matching rule, If the matching, the forwarding of the data packet according to the entry includes: if it is determined that the address information in the IP packet header matches the index value of an entry in the matching rule, An operation instruction corresponding to the index value in the entry is sent to the local corresponding Packet Data Convergence Protocol (PDCP) entity queue for processing.

If the base station receives the IP data packet sent by the network side, that is, the data packet received by the base station is a downlink IP data packet, the base station according to the address information in the IP data packet header, such as an IP quintuple, and the locally stored downlink matching rule. If the IP quintuple matches the index value of an entry in the downlink matching rule, the IP data packet is sent to the local corresponding according to the operation instruction corresponding to the index value in the entry. The PDCP entity queue is processed, and the table entries matched by the data packet are as shown in Table 1:

Table 1

The base station locally stores the mapping relationship between the bearer identifier corresponding to the IP quintuple and the queue of the PDCP entity, and the base station obtains the corresponding bearer identifier and the PDCP entity queue according to the IP quintuple of the IP data packet, and the IP data packet is added by the PDCP entity queue. The PDCP packet is formed on the upper PDCP packet, and the PDCP data packet is sent to the air interface bearer corresponding to the bearer identifier, and the PDCP data packet is sent to the user terminal according to the air interface bearer.

If the data packet received by the base station is a PDCP data packet sent by the user terminal, if the data packet is matched with a locally stored matching rule, the packet is matched according to the entry. The forwarding of the data packet includes: decompressing the PDCP data packet, obtaining an IP data packet, and determining, if the information is matched with an index value of a table entry in the matching rule, according to the index and the index The operation instruction corresponding to the value forwards the IP data packet to the gateway of the external domain or the opposite base station of the local domain.

Decompressing the PDCP data packet to obtain an IP data packet, and if it is determined that the index value of an entry in the matching rule is matched, the method includes: decompressing the PDCP data packet After obtaining the IP data packet, if it is determined according to the quintuple of the IP data packet, it is matched with the index value of an entry in the matching rule; or after decompressing the PDCP data packet to obtain an IP data packet, And determining, according to the bearer identifier corresponding to the current PDCP entity queue, that the index value of one entry in the matching rule matches.

If the data packet received by the base station is a PDCP data packet sent by the user terminal, that is, the data packet received by the base station is an uplink PDCP data packet, the PDCP data packet is decompressed to obtain an IP data packet, and if the judgment is obtained, The quintuple of the IP data packet matches the index value of an entry in the uplink matching rule, and the IP data packet is forwarded to the gateway of the foreign domain according to the operation instruction corresponding to the index value in the entry. The peer base station of the local domain; the table entries matched by the data packet are as shown in Table 2:

Table 2

The IP quintuple is forwarded to the external domain gateway (the destination IP is in the outer domain) or forwarded to the peer base station (the destination IP is in the local domain). If the base station determines that the current bearer identifier corresponding to the current PDCP entity queue and the index value of an entry in the uplink matching rule are obtained, If the matching is performed, the IP data packet is forwarded to the gateway of the external domain or the opposite base station of the local domain according to the operation indication corresponding to the index value in the entry; 3 shows:

table 3

The bearer identifier is forwarded to the outer domain gateway (the destination IP is in the outer domain) or forwarded to the opposite base station (the destination IP is in the local domain). The base station decompresses the PDCP data packet to obtain an IP data packet, which can be based on the IP quintuple of the IP data packet. Or the bearer identifier corresponding to the PDCP entity queue of the PDCP data packet is matched with the uplink matching rule. If an entry in the uplink matching rule is matched, the IP data packet is forwarded according to the operation indication in the entry, if the IP data The destination IP of the packet is in the outer domain of the network to which the base station belongs, and the base station forwards the IP data packet to the external domain gateway. If the destination IP address of the IP data packet is in the network to which the base station belongs, the base station forwards the IP data to the opposite base station in the local domain.

In the embodiment of the present invention, the downlink data packet and the uplink data matching rule are matched by the downlink matching rule and the uplink matching rule of the base station, and the data packet is forwarded according to the operation instruction corresponding to the matched entry, and the data packet does not need to be forwarded through the GTP tunnel. The network signaling overhead and bearer resources are saved, and the LTE network resource consumption is reduced. For the gateway, the data packet is an IP data packet sent by the user terminal or the network side; correspondingly, if the determining is that the data packet matches a table entry in the locally stored matching rule, And forwarding, by the entry, the data packet according to the quintuton of the IP data packet, if the index value of an entry in the matching rule is matched, according to the The operation instruction corresponding to the index value forwards the IP data packet to the gateway of the external domain or the opposite base station of the local domain.

If the gateway receives the IP data packet sent by the network side, that is, the downlink IP data packet, or the gateway receives the IP data packet sent by the user terminal, that is, the uplink IP data packet sent by the base station, the gateway according to the IP data packet is five yuan. The group matches the matching rule stored in the gateway, and if it is determined that the index value of an entry in the matching rule matches, the IP is determined according to an operation instruction corresponding to the index value in the entry. The data packet is forwarded to the gateway of the foreign domain or the opposite base station of the domain. The table entries matched by the data packet are shown in Table 4:

Table 4

If the destination IP of the IP data packet is in the outer domain of the network to which the gateway belongs, the gateway forwards the IP data packet to the external domain gateway. If the destination IP address of the IP data packet is in the network to which the gateway belongs, the gateway forwards the IP data to the pair in the domain. End base station.

The embodiment of the present invention matches the received data packet with the matching rule by using the gateway, and forwards the data packet according to the operation instruction corresponding to the matched entry, and does not need to forward the data packet through the GTP tunnel, thereby saving network signaling overhead and bearer. Resources, reducing LTE network resource consumption.

FIG. 3 is a structural diagram of a base station according to another embodiment of the present invention. On the basis of the foregoing embodiment, the base station receives the IP data packet sent by the network side, performs GTP encapsulation on the IP data packet according to the locally stored GTP tunnel parameter, and obtains the preprocessed IP data after performing UDP encapsulation and IP encapsulation. The packet is sent to the protocol stack for processing.

As shown in FIG. 3, if no matching rule is configured on the base station, and the IP data packet sent by the network side is received, the pre-processing module in the base station performs pre-processing on the IP data packet, specifically, the pre-processing module is locally stored, The GTP tunnel parameter sent by the controller performs GTP encapsulation on the IP data packet to obtain a GTP data packet, and then performs UDP encapsulation and IP encapsulation on the GTP data packet to obtain an IP data packet, and sends the IP data packet carrying the GTP encapsulation to the The protocol stack of the base station, The protocol stack of the base station performs UDP decapsulation, IP decapsulation, and GTP decapsulation processing on the IP data packets carrying the GTP encapsulation to obtain IP data packets, and then is processed by the PDCP entity queue.

In addition, the base station performs PDCP decapsulation on the PDCP data packet sent by the user terminal to obtain the first IP data packet, and then sends the packet to the protocol stack for GTP encapsulation, UDP encapsulation, and IP encapsulation to obtain the second IP data packet, and the second IP data packet is obtained. The IP digital packet performs UDP decapsulation and IP decapsulation, and performs GTP decapsulation according to locally stored GTP tunnel parameters, and obtains the first IP data packet sent to the outer domain gateway or the peer base station of the local domain.

As shown in FIG. 3, if a matching rule is not configured on the base station, and the PDCP data packet sent by the user terminal is received, the PDCP data packet is decapsulated to obtain the IP data packet carried in the first IP data packet, that is, the PDCP data packet. The second IP data packet is obtained by GTP encapsulation, UDP encapsulation, and IP encapsulation of the first IP data packet by the protocol stack of the base station, and the second IP data packet is sent to the pre-processing module, and the second IP packet is sent by the pre-processing module. The digital packet performs UDP decapsulation and IP decapsulation to obtain a GTP data packet, and performs GTP decapsulation on the GTP data packet according to the locally stored GTP tunnel parameter sent by the controller to obtain the first IP data packet, and the first IP data packet is obtained. The destination IP in the first IP data packet is sent to the gateway of the outer domain or the opposite base station of the local domain by means of IP routing.

In the embodiment of the present invention, the pre-processing module is configured in the base station, and the pre-processing module performs GTP encapsulation, UDP encapsulation, and IP encapsulation on the IP data packets received by the network side, so that the base station that does not have the matching rule can forward the IP that does not carry the GTP encapsulation. The data packet; in addition, the pre-processing module performs UDP decapsulation, IP decapsulation, and GTP decapsulation on the IP packet carrying the GTP encapsulation encapsulated in the protocol stack, so that the user terminal PDCP packet is sent through the IP route instead of the GTP tunnel. Give the gateway to the foreign domain or the opposite base station of the domain.

FIG. 4 is a structural diagram of a base station according to another embodiment of the present invention. The base station provided by the embodiment of the present invention can perform the processing flow provided by the embodiment of the packet forwarding processing method. As shown in FIG. 4, the base station 40 includes a receiving module 41 and a matching module 42, where the receiving module 41 is configured to receive a data packet; The module 42 is configured to match the data packet received by the receiving module 41 with a locally stored matching rule, and if it is determined that the data packet matches a locally stored matching rule, The entry is forwarded to the data packet, where the matching rule includes multiple entries, and the entry includes an index value for determining whether the entry matches the entry, and corresponding to the index value. An operation instruction for indicating how to process the data packet. The embodiment of the present invention matches the received data packet with the matching rule by the base station, and forwards the data packet according to the operation indication in the matched entry, and does not need to forward the data packet through the GTP tunnel, thereby saving network signaling. Overhead and bearer resources reduce LTE network resource consumption.

On the basis of the foregoing embodiment, the data packet received by the receiving module 41 is an IP data packet sent by the network side. Correspondingly, the matching module 42 is configured to determine the address in the IP packet header if it is determined. The information is matched with the index value of an entry in the matching rule, and the IP data packet is sent to the local PDCP entity queue for processing according to the operation instruction corresponding to the index value in the entry.

The data packet received by the receiving module 41 is a PDCP data packet sent by the user terminal. Correspondingly, the matching module 42 is configured to decompress the PDCP data packet, obtain an IP data packet, and determine the matching and matching rule. If the index values of the first one of the entries match, the IP data packet is forwarded to the gateway of the outer domain or the opposite base station of the local domain according to the operation indication corresponding to the index value in the entry.

The matching module 42 is specifically configured to perform decompression on the PDCP data packet to obtain an IP data packet, and determine, according to the quintuple of the IP data packet, that the index value of one entry in the matching rule matches; Or after decompressing the PDCP data packet to obtain an IP data packet, determining, according to the bearer identifier corresponding to the current PDCP entity queue, that the index value of one entry in the matching rule matches.

The base station provided by the embodiment of the present invention may be specifically used to implement the method embodiment provided in FIG. 1 above, and specific functions are not described herein again.

In the embodiment of the present invention, the downlink data packet and the uplink data matching rule are matched by the downlink matching rule and the uplink matching rule of the base station, and the data packet is forwarded according to the operation instruction corresponding to the matched entry, and the data packet does not need to be forwarded through the GTP tunnel. The network signaling overhead and bearer resources are saved, and the LTE network resource consumption is reduced.

FIG. 5 is a structural diagram of a gateway according to another embodiment of the present invention. The gateway provided by the embodiment of the present invention may perform the processing flow provided by the embodiment of the packet forwarding processing method. As shown in FIG. 5, the gateway 50 includes a receiving module 51 and a matching module 52, where the receiving module 51 is configured to receive a data packet; The module 52 is configured to match the data packet received by the receiving module 51 with a locally stored matching rule, and if it is determined that the data packet matches a locally stored matching rule, The entry forwards the data packet; where the matching The rule includes a plurality of entries, the entry including an index value for determining whether to match the entry, and an operation indication corresponding to the index value for indicating how to process the data packet.

On the basis of the embodiment of the present invention, the data packet received by the receiving module 51 is an IP data packet sent by the user terminal or the network side; correspondingly, the matching module 52 is configured to use the IP data packet according to the If the quintuple is determined to match the index value of an entry in the matching rule, the IP data packet is forwarded to the gateway of the external domain according to an operation instruction corresponding to the index value in the entry. The peer base station of this domain.

The gateway provided by the embodiment of the present invention may be specifically used to implement the method embodiment provided in FIG. 1 above, and specific functions are not described herein again.

FIG. 6 is a structural diagram of a base station according to another embodiment of the present invention. The base station provided by the embodiment of the present invention can perform the processing flow provided by the embodiment of the data packet forwarding processing method. As shown in FIG. 6, the base station 60 includes a receiving module 61 and a pre-processing module 62, where the receiving module 61 is configured to receive the network side sending. The IP data packet; the pre-processing module 62 is configured to perform GTP encapsulation on the IP data packet according to the locally stored GTP tunnel parameter, and obtain the pre-processed IP data packet after performing UDP encapsulation and IP encapsulation, and then The processed IP packets are sent to the protocol stack for processing.

In the embodiment of the present invention, the pre-processing module is configured in the base station, and the pre-processing module performs GTP encapsulation, UDP encapsulation, and IP encapsulation on the IP data packets received by the network, so that the base station that does not have the matching rule can forward the IP that does not carry the GTP encapsulation. data pack.

FIG. 7 is a structural diagram of a base station according to another embodiment of the present invention. The base station provided by the embodiment of the present invention can perform the process flow of the data packet forwarding processing method. As shown in FIG. 7, the base station 70 includes a decapsulation module 71, a packaging module 72, and a preprocessing module 73. The PDCP decapsulation is performed on the PDCP data packet sent by the user terminal to obtain a first IP data packet; the encapsulating module 72 is configured to perform GTP encapsulation, UDP encapsulation, and IP encapsulation on the first IP data packet to obtain a second IP data packet; The pre-processing module 73 is configured to perform UDP decapsulation and IP decapsulation on the second IP digital packet, and perform GTP decapsulation according to the locally stored GTP tunnel parameter, to obtain the gateway that the first IP data packet is sent to the external domain or The peer base station of this domain. In the embodiment of the present invention, the pre-processing module configured in the base station performs UDP decapsulation, IP decapsulation, and GTP decapsulation on the IP data packet encapsulated by the protocol stack and carries the GTP encapsulation, so that the PDCP data packet of the user terminal passes the IP route instead of The GTP tunnel is sent to the gateway of the foreign domain or the peer base station of the local domain.

FIG. 8 is a structural diagram of a packet forwarding processing system according to another embodiment of the present invention. The data packet forwarding processing system provided by the embodiment of the present invention may perform the processing flow provided by the embodiment of the data packet forwarding processing method. As shown in FIG. 8, the data packet forwarding processing system 80 includes the base station 40 and the foregoing embodiment described in the foregoing embodiments. The gateway 50. In addition, the base station included in the packet forwarding processing system 80 may also be the base station 60 or the base station 70 described in the foregoing embodiments.

The packet forwarding processing system provided by the embodiment of the present invention can perform the processing flow provided by the embodiment of the data packet forwarding processing method.

The embodiment of the present invention provides a processing procedure provided by an embodiment of a data packet forwarding processing method, where the base station includes a receiver and a processor, where the receiver is configured to receive a data packet, and the processor is configured to: The data packet received by the receiving module is matched with the locally stored matching rule. If it is determined that the data packet matches an entry in the locally stored matching rule, the data packet is performed according to the table entry. Forwarding; wherein the matching rule includes multiple entries, the entry includes an index value for determining whether to match the entry, and corresponding to the index value, indicating how to process the The operational indication of the packet.

The data packet received by the receiver is an IP data packet sent by the network side. Correspondingly, the processor is configured to: if it is determined, the address information in the IP data packet header and an entry in the matching rule are learned. If the index values match, the IP data packet is sent to the local PDCP entity queue for processing according to the operation indication corresponding to the index value in the entry.

The data packet received by the receiver is a PDCP data packet sent by the user terminal; correspondingly, the processor is configured to decompress the PDCP data packet, obtain an IP data packet, and determine a table in the matching and matching rules. If the index values of the items match, the IP data packet is forwarded to the gateway of the outer domain or the opposite base station of the local domain according to the operation indication corresponding to the index value in the entry.

The processor is specifically configured to: after decompressing the PDCP data packet to obtain an IP data packet, determine, according to the quintuple of the IP data packet, that the index value of an entry in the matching rule matches; or Decompressing the PDCP data packet to obtain an IP data packet, according to The bearer identifier of the current PDCP entity queue is determined to match the index value of an entry in the matching rule.

The embodiment of the present invention matches the received data packet with the matching rule by the base station, and forwards the data packet according to the operation indication in the matched entry, and does not need to forward the data packet through the GTP tunnel, thereby saving network signaling. Overhead and bearer resources reduce LTE network resource consumption.

The embodiment of the present invention provides a gateway, which may perform a process flow provided by an embodiment of a data packet forwarding processing method, where the gateway includes a receiver and a processor, where the receiver is configured to receive a data packet, and the processor is configured to: The data packet received by the receiving module is matched with the locally stored matching rule. If it is determined that the data packet matches an entry in the locally stored matching rule, the data packet is performed according to the table entry. Forwarding; wherein the matching rule includes multiple entries, the entry includes an index value for determining whether to match the entry, and corresponding to the index value, indicating how to process the The operational indication of the packet.

The data packet received by the receiver is an IP data packet sent by the user terminal or the network side. Correspondingly, the processor is configured to learn, according to the quintuple of the IP data packet, the matching rule. If the index value of an entry matches, the IP data packet is forwarded to the gateway of the outer domain or the opposite base station of the local domain according to the operation indication corresponding to the index value in the entry.

The embodiment of the present invention provides a processing procedure provided by an embodiment of a data packet forwarding processing method, where the base station includes a receiver and a processor, and the receiver is configured to receive an IP data packet sent by the network side; The device is configured to perform GTP encapsulation on the IP data packet according to locally stored GTP tunnel parameters, and obtain a preprocessed IP data packet by performing UDP encapsulation and IP encapsulation, and then sending the preprocessed IP data packet to the protocol stack. Process it.

The embodiment of the present invention provides a processing procedure provided by an embodiment of a data packet forwarding processing method, where the base station includes a processor and a transmitter, and the processor is configured to perform PDCP decapsulation on a PDCP data packet sent by the user terminal. Obtaining a first IP data packet; An IP data packet is subjected to GTP encapsulation and UDP encapsulation and IP encapsulation to obtain a second IP data packet; UDP decapsulation and IP decapsulation are performed on the second IP digital packet, and GTP decapsulation is performed according to locally stored GTP tunnel parameters, Obtaining the first IP data packet; the transmitter is configured to send the first IP data packet to a gateway of an external domain or a peer base station of the local domain.

In the embodiment of the present invention, the pre-processing module configured in the base station performs UDP decapsulation, IP decapsulation, and GTP decapsulation on the IP data packet encapsulated by the protocol stack and carries the GTP encapsulation, so that the PDCP data packet of the user terminal passes the IP route instead of The GTP tunnel is sent to the gateway of the foreign domain or the peer base station of the local domain.

In summary, the embodiment of the present invention matches the received data packet with the matching rule by using the gateway or the base station, and forwards the data packet according to the operation indication in the matched entry, and does not need to forward the data through the GTP tunnel. The packet saves network signaling overhead and bearer resources, and reduces LTE network resource consumption. In addition, the pre-processing module is configured in the base station, and the pre-processing module performs GTP encapsulation, UDP encapsulation, and IP encapsulation on the IP data packets received by the network, so that the base station that does not have the matching rule can forward the IP data packet that does not carry the GTP encapsulation. The pre-processing module also performs UDP decapsulation, IP decapsulation, and GTP decapsulation on the IP packet carrying the GTP encapsulation encapsulated in the protocol stack, so that the PDCP packet of the user terminal is sent to the gateway of the external domain through the IP route instead of the GTP tunnel. Or the peer base station of the domain.

In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated in In a unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The above software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the method of various embodiments of the present invention. Partially. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. .

A person skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of each functional module described above is exemplified. In practical applications, the above function assignment can be completed by different functional modules as needed, that is, the device is installed. The internal structure is divided into different functional modules to perform all or part of the functions described above. For the specific working process of the device described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

Claim

A packet forwarding processing method, comprising:

Receiving a data packet;

The method according to claim 1, wherein the data packet is an IP data packet sent by the network side, and correspondingly, the determining, if the data packet is learned, is matched with a locally stored matching rule. If the data packet is forwarded according to the entry, the method includes: if it is determined that the address information in the IP packet header matches the index value of an entry in the matching rule, The operation instruction corresponding to the index value in the description item sends the IP data packet to a locally corresponding PDCP entity queue for processing.

The method according to claim 1, wherein the data packet is a PDCP data packet sent by the user terminal; and correspondingly, the determining, if the data packet is learned, is matched with a locally stored matching rule. If the matching is performed, the data packet is forwarded according to the entry, including:

Decompressing the PDCP data packet, and obtaining an IP data packet, if it is determined that the index value of an entry in the matching rule matches, according to an operation instruction corresponding to the index value in the entry, The IP packet is forwarded to the gateway of the foreign domain or the opposite base station of the domain.

The method according to claim 3, wherein the decompressing the PDCP data packet to obtain an IP data packet, if it is determined that the index value of an entry in the matching rule is matched, includes:

After decompressing the PDCP data packet to obtain an IP data packet, if it is determined according to the quintuple of the IP data packet, it is learned that the index value of one entry in the matching rule matches; or

Decompressing the PDCP data packet to obtain an IP data packet, and determining, according to the bearer identifier corresponding to the current PDCP entity queue, that the index value of one entry in the matching rule matches.

5. The method according to claim 1, wherein the data packet is a user end The IP data packet sent by the terminal or the network side; correspondingly, if it is determined that the data packet matches a table entry in the locally stored matching rule, the data packet is forwarded according to the entry, including :

If the quintuple of the IP data packet is determined to match the index value of an entry in the matching rule, the IP data is determined according to an operation instruction corresponding to the index value in the entry. The packet is forwarded to the gateway of the foreign domain or the opposite base station of the domain.

6. A packet forwarding processing method, comprising:

Receiving, by the base station, the IP data packet sent by the network side, performing GTP encapsulation on the IP data packet according to the locally stored GTP tunnel parameter, and performing UDP encapsulation and IP encapsulation to obtain the preprocessed IP data packet, and then performing the pre-processing The IP packets are sent to the protocol stack for processing.

A data packet forwarding processing method, comprising:

The base station performs PDCP decapsulation on the PDCP data packet sent by the user terminal to obtain the first IP data packet, and then sends the packet to the protocol stack for GTP encapsulation and UDP encapsulation and IP encapsulation to obtain the second IP data packet, and the second IP digital packet is sent to the protocol stack. The UDP decapsulation and the IP decapsulation are performed, and the GTP decapsulation is performed according to the locally stored GTP tunnel parameters, and the first IP data packet is sent to the gateway of the outer domain or the opposite base station of the local domain.

8. A base station, comprising:

a receiving module, configured to receive a data packet;

The base station according to claim 8, wherein the data packet received by the receiving module is an IP data packet sent by the network side; correspondingly, the matching module is configured to determine the IP data if it is determined And the address information in the packet header matches the index value of an entry in the matching rule, and the IP data packet is sent to the local PDCP according to the operation instruction corresponding to the index value in the entry. The entity queue is processed.

The base station according to claim 8, wherein the data packet received by the receiving module is a PDCP data packet sent by a user terminal; correspondingly, the matching module is used for Decompressing the PDCP data packet, and obtaining an IP data packet, if it is determined that the index value of an entry in the matching rule matches, according to an operation instruction corresponding to the index value in the entry, The IP packet is forwarded to the gateway of the foreign domain or the opposite base station of the domain.

The base station according to claim 10, wherein the matching module is configured to decompress the PDCP data packet to obtain an IP data packet, and determine, according to the quintuple of the IP data packet, The index value of an entry in the matching rule is matched; or after the IP data packet is decompressed, the PDCP data packet is obtained, and the one of the matching rules is determined according to the bearer identifier corresponding to the current PDCP entity queue. The index values match.

12. A gateway, comprising:

a receiving module, configured to receive a data packet;

The gateway according to claim 12, wherein the data packet received by the receiving module is an IP data packet sent by a user terminal or a network side; correspondingly, the matching module is used according to the The quintuple of the IP data packet is determined to match the index value of an entry in the matching rule, and the IP data packet is forwarded according to an operation instruction corresponding to the index value in the entry. The gateway of the outer domain or the opposite base station of the domain.

A base station, comprising:

a decapsulation module, configured to perform PDCP decapsulation on a PDCP data packet sent by the user terminal to obtain a first IP data packet;

a packaging module, configured to perform GTP encapsulation, UDP encapsulation, and IP encapsulation on the first IP data packet to obtain a second IP data packet; a pre-processing module, configured to perform UDP decapsulation and IP decapsulation on the second IP digital package, and perform GTP decapsulation according to locally stored GTP tunnel parameters, to obtain a gateway for sending the first IP data packet to an external domain or The peer base station of this domain.

16. A base station, comprising: a receiver and a processor, wherein:

The receiver is configured to receive a data packet;

The base station according to claim 16, wherein the data packet received by the receiver is an IP data packet sent by a network side, and correspondingly, the processor is configured to determine, if the IP data packet is learned, If the address information in the packet header matches the index value of an entry in the matching rule, the IP data packet is sent to the local PDCP entity according to the operation indication corresponding to the index value in the entry. The queue is processed.

The base station according to claim 16, wherein the data packet received by the receiver is a PDCP data packet sent by a user terminal; and correspondingly, the processor is configured to solve the PDCP data packet. After the IP packet is obtained by the compression, if it is determined that the index value of the entry in the matching rule matches, the IP packet is forwarded to the gateway of the foreign domain according to the operation instruction corresponding to the index value in the entry. Or the peer base station of the domain.

The base station according to claim 18, wherein the processor is specifically configured to decompress the PDCP data packet to obtain an IP data packet, and determine, according to the quintuple of the IP data packet, The index value of an entry in the matching rule is matched; or after the IP data packet is decompressed, the PDCP data packet is obtained, and the one of the matching rules is determined according to the bearer identifier corresponding to the current PDCP entity queue. The index values match.

20. A gateway, comprising: a receiver and a processor, wherein:

The receiver is configured to receive a data packet;

The processor is configured to match the data packet received by the receiving module with a locally stored matching rule, and if it is determined that the data packet matches an entry in a locally stored matching rule, according to the The entry forwards the data packet; where the matching rule A plurality of entries are included, the entry includes an index value for determining whether to match the entry, and an operation indication corresponding to the index value for indicating how to process the data packet.

The gateway according to claim 20, wherein the data packet received by the receiver is an IP data packet sent by a user terminal or a network side; correspondingly, the processor is configured to The quintuple of the IP data packet is determined to match the index value of an entry in the matching rule, and the IP data packet is forwarded to the outer domain according to an operation instruction corresponding to the index value in the entry. Gateway or peer base station of this domain.

22. A base station, comprising: a receiver and a processor, wherein:

The receiver is configured to receive an IP data packet sent by a network side;

A base station, comprising: a processor and a transmitter, wherein:

The processor is configured to perform PDCP decapsulation on a PDCP data packet sent by a user terminal to obtain a first IP data packet; perform GTP encapsulation, UDP encapsulation, and IP encapsulation on the first IP data packet to obtain a second IP data packet; Performing UDP decapsulation and IP decapsulation on the second IP digital packet, and performing GTP decapsulation according to locally stored GTP tunnel parameters to obtain the first IP data packet;

A packet forwarding processing system, comprising: the base station according to any one of claims 16-19, 22, 23, and the gateway according to claim 20 or 21.