WO2016154828A1

WO2016154828A1 - Data transmission method, apparatus and system

Info

Publication number: WO2016154828A1
Application number: PCT/CN2015/075324
Authority: WO
Inventors: 杨利; 罗海燕; 石小丽; 王君
Original assignee: 华为技术有限公司
Priority date: 2015-03-27
Filing date: 2015-03-27
Publication date: 2016-10-06
Also published as: CN106688270A

Abstract

Embodiments of the present invention relate to the field of communications. Provided are a data transmission method, apparatus and system, capable of accomplishing multi-flow convergent data transmission and guaranteeing the service quality of a wireless cellular network. The method comprises: a cellular access device receives a cellular IP address, sent by a UE, of the UE, wherein the cellular IP address of the UE is an IP address allocated to the UE by a cellular core network; and multi-flow convergent data transmission is performed between the cellular access device and the UE by a non-cellular access device via the cellular IP address of the UE.

Description

Data transmission method, device and system

Technical field

The present invention relates to the field of communications, and in particular, to a data transmission method, apparatus, and system.

Background technique

With the popularity of smart mobile terminals and the rapid development of mobile applications, the use of mobile data by users has increased greatly, making it increasingly difficult for existing networks to meet the growing demand for mobile data traffic. Generally, a wireless cellular network has the advantages of wide coverage and high-speed mobility, but has the disadvantages of low data rate, high price, and large transmission power; and WLAN (Wireless Local Area Networks) has a high data rate. The advantages are low price, small transmission power, etc., but at the same time have the disadvantages of small coverage.

In order to meet the demand for the growth of mobile data traffic, the prior art integrates the wireless cellular network technology and the WLAN technology, and utilizes the WLAN to offload the data traffic of the wireless cellular communication system, thereby improving the user experience and achieving efficient and low-cost communication. A known method for merging the wireless cellular network technology and the WLAN technology is that the UE (User Equipment) accesses the EPC (Evolved Packet Core) through the base station and passes through a certain PDN- GSM (Packet Data Network-Gateway) establishes a PDN (Packet Data Network) connection. Then, the UE accesses the EPC through a TWAN (Trusted Wireless Local Area Networks Access Network), and the TWAN can select a PDN-GW to create a PDN connection, thereby implementing the wireless cellular network technology and the WLAN technology. The mutual integration, the technology of WLAN offloading.

However, the data traffic of the WLAN offload wireless cellular communication system in the prior art is determined by the UE according to a pre-provisioning policy or a policy acquired from an ANDSF (Access Network Discovery and Selection Function) server. WLAN network access and multi-streaming with wireless cellular networks The data transmission is aggregated, but the UE cannot determine the service quality of the service that is offloaded to the WLAN network, and thus cannot guarantee the service quality of the wireless cellular network.

Summary of the invention

Embodiments of the present invention provide a data transmission method, apparatus, and system, which can complete data transmission of multi-stream aggregation and ensure service quality of a wireless cellular network.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In a first aspect, an embodiment of the present invention provides a data transmission method, including:

The cellular access device receives the cellular network interconnection protocol IP address of the UE sent by the user equipment UE, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE;

The multi-stream aggregation data transmission between the cellular access device and the UE via the non-cellular access device by the cellular IP address of the UE.

In a first possible implementation, according to the first aspect, the method further includes:

The cellular access device receives the UE identity sent by the UE, where the UE identity is a media access control MAC address of the UE in the non-cellular.

In a second possible implementation, in combination with the first aspect or the first possible implementation, after the cellular access device receives the cellular IP address of the UE that is sent by the UE, the method further includes:

The cellular access device transmits a cellular IP address of the UE and the UE identifier to the non-cellular access device.

In a third possible implementation, in combination with the first aspect or the first possible implementation or the second possible implementation, the method further includes:

The cellular access device sends an IP address of the cellular access device to the UE.

In a fourth possible implementation, combining the first aspect or the first possible implementation manner to the third possible implementation manner, the method further includes:

The cellular access device sends a transport layer protocol and/or a port number to the UE, where the port number includes a port number of the UE and a port number of the cellular access device, where the port number is a packet The port number corresponding to the PDCP protocol of the data channel or the port number corresponding to the RLC protocol of the radio link control layer, and the transport layer protocol is the transmission control protocol. The TCP protocol, the User Datagram Protocol UDP protocol, the PDCP protocol, or the RLC protocol are discussed.

In a fifth possible implementation manner, in combination with the first aspect or the first possible implementation manner to the fourth possible implementation manner, the cellular access device and the UE are performed by using a non-cellular access device The protocol data unit transmitted in the multi-stream aggregation data transmission process includes radio bearer information; the radio bearer information is located in an IP header of the protocol data unit, in a PDCP header, in an extended PDCP header, or a newly adapted In the layer header, the radio bearer information is a radio access bearer identifier ERAB ID, a data radio bearer identifier DRB ID, a logical channel identifier LC ID, or a radio bearer mapping value;

And if the radio bearer information is the radio bearer mapping value, the method further includes:

Transmitting, by the cellular access device, the radio bearer mapping value and the radio bearer mapping relationship of the DRB ID or the LC ID to the UE;

If the radio bearer information is the ERAB ID, the method further includes:

The cellular access device sends a radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID to the UE.

In a sixth possible implementation manner, the IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header further includes: The priority information of the logical channel corresponding to the LC ID, the priority information of the data radio bearer corresponding to the DRB ID, the priority information of the radio bearer mapping value corresponding to the radio bearer mapping value, or the radio corresponding to the ERAB ID Priority information of the access bearer.

In a second aspect, an embodiment of the present invention provides a data transmission method, including:

The user equipment UE sends the cellular network interconnection protocol IP address of the UE to the cellular access device, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE;

The multi-stream aggregation data transmission between the UE and the cellular access device via the cellular IP address of the UE via the non-cellular access device.

In a first possible implementation manner, according to the second aspect, the method further includes:

Transmitting, by the UE, a UE identifier to the cellular access device, where the UE identifier is a media access control MAC address of the UE in the non-cellular;

The UE accesses the non-cellular access device by using the UE identifier.

In a second possible implementation, in combination with the second aspect or the first possible implementation manner, after the UE sends the cellular IP address of the UE to the cellular access device, the method further includes:

The UE sends a cellular IP address of the UE and the UE identifier to the non-cellular access device.

In a third possible implementation, in combination with the second aspect or the first possible implementation or the second possible implementation, the method further includes:

The UE receives an IP address of the cellular access device that is sent by the cellular access device.

In a fourth possible implementation, in combination with the second aspect or the first possible implementation to the third possible implementation, the method further includes:

Receiving, by the UE, a transport layer protocol and/or a port number sent by the cellular access device, where the port number includes a port number of the UE and a port number of the cellular access device, where the port number is a port number corresponding to the packet data channel PDCP protocol or a port number corresponding to the radio link control layer RLC protocol, where the transport layer protocol is a transmission control protocol TCP protocol, a user datagram protocol UDP protocol, the PDCP protocol, or the RLC protocol. .

In a fifth possible implementation, in combination with the second aspect or the first possible implementation manner to the fourth possible implementation manner, the cellular access device and the UE are performed by using a non-cellular access device The protocol data unit transmitted in the multi-stream aggregation data transmission process includes radio bearer information; the radio bearer information is located in an IP header of the protocol data unit, in a PDCP header, in an extended PDCP header, or a newly adapted In the layer header, the radio bearer information is a radio access bearer identifier ERAB ID, a data radio bearer identifier DRB ID, a logical channel identifier LC ID, or a radio bearer mapping value;

Receiving, by the UE, the mapping relationship between the radio bearer mapping value sent by the cellular access device and the radio bearer of the DRB ID or the LC ID;

If the radio bearer information is the ERAB ID, the method further includes:

The UE receives a radio bearer mapping relationship between the ERAB ID and the DRB ID or the LC ID sent by the cellular access device.

In a third aspect, an embodiment of the present invention provides a data transmission method, including:

The non-cellular access device receives the cellular network interconnection protocol IP address and the UE identifier of the UE that is sent by the cellular access device or the user equipment UE, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE, The UE identifier is a media access control MAC address of the UE in the non-cellular.

In a fourth aspect, an embodiment of the present invention provides a cellular access device, including:

a receiving module, configured to receive a cellular network interconnection protocol IP address of the UE sent by the user equipment UE, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE;

And a processing module, configured to perform data transmission between the UE and the UE by using a cellular IP address of the UE by using a non-cellular access device for multi-stream aggregation.

In a first possible implementation manner, according to the fourth aspect, the receiving module is further configured to receive a UE identifier sent by the UE, where the UE identifier is a media access of the UE in the non-cellular Control the MAC address.

In a second possible implementation, in combination with the fourth aspect or the first possible implementation, the cellular access device further includes:

a sending module, configured to send, after the receiving module receives a cellular IP address of the UE sent by the UE, a cellular IP address of the UE and the UE identifier to the non-bee The socket is connected to the device.

In a third possible implementation, in combination with the fourth aspect, the first possible implementation, or the second possible implementation, the sending module is further configured to send the IP address of the cellular access device to The UE.

In a fourth possible implementation, in combination with the fourth aspect or the first possible implementation to the third possible implementation, the sending module is further configured to send a transport layer protocol and/or a port number to the The UE, wherein the port number includes a port number of the UE and a port number of the cellular access device, where the port number is a port number corresponding to a packet data channel PDCP protocol or a radio link control layer RLC protocol corresponding The port number, the transport layer protocol is a Transmission Control Protocol TCP protocol, a User Datagram Protocol UDP protocol, the PDCP protocol, or the RLC protocol.

In a fifth possible implementation, in combination with the fourth aspect or the first possible implementation manner to the fourth possible implementation manner, the cellular access device and the UE are performed by using a non-cellular access device The protocol data unit transmitted in the multi-stream aggregation data transmission process includes radio bearer information; the radio bearer information is located in an IP header of the protocol data unit, in a PDCP header, in an extended PDCP header, or a newly adapted In the layer header, the radio bearer information is a radio access bearer identifier ERAB ID, a data radio bearer identifier DRB ID, a logical channel identifier LC ID, or a radio bearer mapping value;

The sending module is further configured to: if the radio bearer information is the radio bearer mapping value, send a mapping relationship between the radio bearer mapping value and the radio bearer of the DRB ID or the LC ID to the UE; The radio bearer information is the ERAB ID, and the radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID is sent to the UE.

In a sixth possible implementation manner, the IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header further includes: The priority information of the logical channel corresponding to the LC ID, the priority information of the data radio bearer corresponding to the DRB ID, the priority information of the radio bearer mapping value corresponding to the radio bearer mapping value, or the ERAB ID Priority information for the radio access bearer.

In a fifth aspect, an embodiment of the present invention provides a UE, including:

a sending module, configured to send a cellular network interconnection protocol IP address of the user equipment UE to the cellular access device, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE;

And a processing module, configured to perform data transmission between the cellular access device and the multi-stream aggregation via the non-cellular access device by using a cellular IP address of the UE.

In a first possible implementation manner, according to the fifth aspect,

The sending module is further configured to send a UE identifier to the cellular access device, where the UE identifier is a media access control MAC address of the UE in the non-cellular:

The processing module is further configured to access the non-cellular access device by using the UE identifier.

In a second possible implementation, in combination with the fifth aspect or the first possible implementation, the sending module is further configured to send after the sending module sends the cellular IP address of the UE to the cellular access device. The cellular IP address of the UE and the UE identity to the non-cellular access device.

In a third possible implementation manner, in combination with the fifth aspect, the first possible implementation manner, or the second possible implementation manner, the UE further includes:

And a receiving module, configured to receive an IP address of the cellular access device that is sent by the cellular access device.

In a fourth possible implementation, the receiving module is further configured to receive the transport layer sent by the cellular access device, in combination with the fifth aspect or the first possible implementation manner to the third possible implementation manner. a protocol and/or a port number, where the port number includes a port number of the UE and a port number of the cellular access device, where the port number is a port number corresponding to a packet data channel PDCP protocol or a radio link control The port number corresponding to the layer RLC protocol, and the transport layer protocol is a transmission control protocol TCP protocol, a user datagram protocol UDP protocol, the PDCP protocol, or the RLC protocol.

In a fifth possible implementation, combining the fifth aspect or the first possible implementation In a fourth possible implementation manner, a protocol data unit transmitted during a data transmission process between the cellular access device and the UE by using a non-cellular access device for multi-stream aggregation includes radio bearer information; The radio bearer information is located in an IP header of the protocol data unit, in a PDCP header, in an extended PDCP header, or in a newly added adaptation layer header; the radio bearer information is a radio access bearer identifier ERAB ID, and data wireless a bearer identifier DRB ID, a logical channel identifier LC ID, or a radio bearer mapping value;

The receiving module is further configured to: if the radio bearer information is the radio bearer mapping value, receive the radio bearer mapping value sent by the cellular access device, and the radio bearer of the DRB ID or the LC ID a mapping relationship; if the radio bearer information is the ERAB ID, receiving a radio bearer mapping relationship between the ERAB ID sent by the cellular access device and the DRB ID or the LC ID.

In a sixth aspect, an embodiment of the present invention provides a non-cellular access device, including:

a receiving module, configured to receive a cellular IP address and a UE identifier of a UE that is sent by a cellular access device or a user equipment UE, where the cellular IP address of the UE is a network interconnection protocol IP address allocated by the cellular core network to the UE, The UE identifier is a media access control MAC address of the UE in the non-cellular.

A seventh aspect of the present invention provides a cellular access device, including:

a receiver, configured to receive a cellular network interconnection protocol IP address of the UE sent by the user equipment UE, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE;

And a processor, configured to perform multi-stream aggregation data transmission with the UE by using a cellular IP address of the UE by using a non-cellular access device.

In a first possible implementation, the receiver is further configured to receive a UE identifier sent by the UE, where the UE identifier is that the UE is in the non-cellular media access. Control the MAC address.

In a second possible implementation, in combination with the seventh aspect or the first possible implementation, the cellular access device further includes:

And a transmitter, configured to send, after the receiver receives the cellular IP address of the UE sent by the UE, the cellular IP address of the UE and the UE identifier to the non-cellular access device.

In a third possible implementation, in combination with the seventh aspect, the first possible implementation, or the second possible implementation, the transmitter is further configured to send the IP address of the cellular access device to The UE.

In a fourth possible implementation, in combination with the seventh aspect or the first possible implementation to the third possible implementation, the transmitter is further configured to send a transport layer protocol and/or a port number to the The UE, wherein the port number includes a port number of the UE and a port number of the cellular access device, where the port number is a port number corresponding to a packet data channel PDCP protocol or a radio link control layer RLC protocol corresponding The port number, the transport layer protocol is a Transmission Control Protocol TCP protocol, a User Datagram Protocol UDP protocol, the PDCP protocol, or the RLC protocol.

In a fifth possible implementation manner, in combination with the seventh aspect or the first possible implementation manner to the fourth possible implementation manner, the cellular access device and the UE are performed by using a non-cellular access device The protocol data unit transmitted in the multi-stream aggregation data transmission process includes radio bearer information; the radio bearer information is located in an IP header of the protocol data unit, in a PDCP header, in an extended PDCP header, or a newly adapted In the layer header, the radio bearer information is a radio access bearer identifier ERAB ID, a data radio bearer identifier DRB ID, a logical channel identifier LC ID, or a radio bearer mapping value;

The transmitter is further configured to: if the radio bearer information is the radio bearer mapping value, send a mapping relationship between the radio bearer mapping value and the radio bearer of the DRB ID or the LC ID to the UE; The radio bearer information is the ERAB ID, Transmitting, by the ERAB ID, the radio bearer mapping relationship of the DRB ID or the LCID to the UE.

The eighth aspect of the present invention provides a UE, including:

a transmitter, configured to send a cellular network interconnection protocol IP address of the user equipment UE to the cellular access device, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE;

And a processor, configured to perform data transmission between the cellular access device and the multi-stream aggregation via the non-cellular access device by using a cellular IP address of the UE.

In a first possible implementation manner, according to the eighth aspect,

The transmitter is further configured to send a UE identifier to the cellular access device, where the UE identifier is a media access control MAC address of the UE in the non-cellular;

The processor is further configured to access the non-cellular access device by using the UE identifier.

In a second possible implementation, in combination with the eighth aspect or the first possible implementation, the transmitter is further configured to send after the sender sends the cellular IP address of the UE to the cellular access device. The cellular IP address of the UE and the UE identity to the non-cellular access device.

In a third possible implementation manner, in combination with the eighth aspect, the first possible implementation manner, or the second possible implementation manner, the UE further includes:

And a receiver, configured to receive an IP address of the cellular access device that is sent by the cellular access device.

In a fourth possible implementation, in combination with the eighth aspect or the first possible implementation to the third possible implementation, the receiver is further configured to receive the bee a transport layer protocol and/or a port number sent by the socket access device, where the port number includes a port number of the UE and a port number of the cellular access device, where the port number is a packet data channel corresponding to a PDCP protocol. The port number or the port number corresponding to the radio link control layer RLC protocol, and the transport layer protocol is a transmission control protocol TCP protocol, a user datagram protocol UDP protocol, the PDCP protocol, or the RLC protocol.

In a fifth possible implementation, in combination with the eighth aspect or the first possible implementation manner to the fourth possible implementation manner, the cellular access device and the UE are performed by using a non-cellular access device The protocol data unit transmitted in the multi-stream aggregation data transmission process includes radio bearer information; the radio bearer information is located in an IP header of the protocol data unit, in a PDCP header, in an extended PDCP header, or a newly adapted In the layer header, the radio bearer information is a radio access bearer identifier ERAB ID, a data radio bearer identifier DRB ID, a logical channel identifier LC ID, or a radio bearer mapping value;

The receiver is further configured to: if the radio bearer information is the radio bearer mapping value, receive the radio bearer mapping value sent by the cellular access device, and the radio bearer of the DRB ID or the LC ID a mapping relationship; if the radio bearer information is the ERAB ID, receiving a radio bearer mapping relationship between the ERAB ID sent by the cellular access device and the DRB ID or the LC ID.

A ninth aspect, the embodiment of the present invention provides a non-cellular access device, including:

a receiver, configured to receive a cellular IP address and a UE identifier of the UE sent by the UE or the user equipment UE, where the cellular IP address of the UE is a network interconnection protocol IP address allocated by the cellular core network to the UE, The UE identifier is a media access control MAC address of the UE in the non-cellular.

A tenth aspect, the embodiment of the present invention provides a data transmission system, comprising the cellular access device according to any one of the fourth aspect, the UE according to any one of the fifth aspect, and the sixth aspect The non-cellular access device.

An eleventh aspect, the embodiment of the present invention provides a data transmission system, comprising the cellular access device according to any one of the seventh aspects, the UE according to any one of the eighth aspect, and the ninth Non-cellular access device as described in the aspect.

An embodiment of the present invention provides a data transmission method, apparatus, and system, which receive, by a cellular access device, an IP address of a UE that is sent by a UE, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE; Data transmission between the cellular access device and the UE through the cellular IP address of the UE through the non-cellular access device for multi-stream aggregation. Since the cellular access device and the UE establish an IP route through the IP address of the UE, the cellular access device is used as a convergence point and a distribution point for data transmission, and because the quality of the network link of the cellular access device to the wireless local area network The change is sensitive, thus ensuring business continuity, improving the user experience, and avoiding business discontinuities caused by insensitivity to the quality change of the wireless LAN network link when the EPC is used as a convergence point and a distribution point.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

FIG. 1 is a schematic structural diagram of configuration of each protocol stack in an eNB, a user equipment, and a WLAN AP according to an embodiment of the present disclosure;

2 is a schematic flowchart of a data transmission method according to Embodiment 1 of the present invention;

3 is a schematic flowchart of a data transmission method according to Embodiment 2 of the present invention;

4 is a schematic flowchart of a data transmission method according to Embodiment 3 of the present invention;

5 is a schematic flowchart of a data transmission method according to Embodiment 4 of the present invention;

FIG. 6 is a schematic flowchart of a data transmission method according to Embodiment 5 of the present invention;

7 is a schematic flowchart of a data transmission method according to Embodiment 6 of the present invention;

8 is a schematic flowchart of a data transmission method according to Embodiment 7 of the present invention;

9 is a schematic flowchart of a data transmission method according to Embodiment 8 of the present invention;

10 is a schematic flowchart of a data transmission method according to Embodiment 9 of the present invention;

11 is a schematic flowchart of a data transmission method according to Embodiment 10 of the present invention;

12 is a schematic flowchart of a data transmission method according to Embodiment 11 of the present invention;

13 is a schematic flowchart of a data transmission method according to Embodiment 12 of the present invention;

14 is a schematic flowchart of a data transmission method according to Embodiment 13 of the present invention;

15 is a schematic flowchart 1 of a data transmission method according to Embodiment 14 of the present invention;

16 is a second schematic flowchart of a data transmission method according to Embodiment 14 of the present invention;

17 is a schematic flowchart 3 of a data transmission method according to Embodiment 14 of the present invention;

FIG. 18 is a first schematic structural diagram of a cellular access device according to Embodiment 15 of the present invention; FIG.

19 is a second schematic structural diagram of a cellular access device according to Embodiment 15 of the present invention;

20 is a schematic structural diagram 1 of a UE according to Embodiment 16 of the present invention;

FIG. 21 is a second schematic structural diagram of a UE according to Embodiment 16 of the present invention;

22 is a schematic structural diagram of a non-cellular access device according to Embodiment 17 of the present invention;

23 is a schematic structural diagram 1 of a cellular access device according to Embodiment 18 of the present invention;

24 is a second schematic structural diagram of a cellular access device according to Embodiment 18 of the present invention;

25 is a schematic structural diagram 1 of a UE according to Embodiment 19 of the present invention;

FIG. 26 is a second schematic structural diagram of a UE according to Embodiment 19 of the present invention;

FIG. 27 is a schematic structural diagram of a non-cellular access device according to Embodiment 20 of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Additionally, the terms "system" and "network" are used interchangeably herein. The term "and/or" in this article is merely an association describing the associated object, indicating that it can exist. The three relationships, for example, A and/or B, can indicate that there are three cases where A exists separately, and A and B exist simultaneously, and B exists separately. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

It should be noted that the technical solution of the present invention can be applied to various communication systems of a wireless cellular network, for example, GSM (Global System of Mobile communication) system, CDMA (Code Division Multiple Access). System, WCDMA (Wideband Code Division Multiple Access Wireless) system, GPRS (General Packet Radio Service) system, LTE (Long Term Evolution) system, UMTS (Universal Mobile Telecommunications System) , Universal Mobile Telecommunications System, etc., the present invention is not limited.

In the embodiment of the present invention, the UE may also be referred to as a mobile terminal (English: Mobile Terminal), a mobile user equipment, or the like, and may communicate with one or more core networks via a RAN (Radio Access Network). The UE may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket, handheld, computer built-in or in-vehicle mobile device that is connected to the wireless device. The network exchange language and/or data is not limited in the present invention.

In the embodiment of the present invention, the cellular access device may be a base station device, such as a BTS (Base Transceiver Station) in GSM or CDMA, or a Node B in WCDMA (English: Node B). It is an eNB in LTE, and the present invention is not limited. The cellular access device may also be a control node of various access network nodes, such as an RNC (Radio Network Controller) in the UMTS, or a controller that manages multiple small base stations.

In the embodiment of the present invention, the non-cellular access device may be a WLAN AP (Wireless Local Area Networks Access Point), or may be a WLAN AC (Wireless Local Area Networks Access Controller). Controllers, or other separately deployed entity WTs (WLAN Terminations), where the WTs can be located at the AP, or they can be located in the AC, or they can be independent entities. In the embodiment of the present invention, a non-cellular access device exists Two network architectures: autonomous management architecture and a centralized management architecture. The self-management architecture is also called the "fat" AP architecture. The WLAN AP is responsible for user equipment access, user equipment disconnection, authority authentication, security policy enforcement, data forwarding, data encryption, network management, etc., and autonomously controls the configuration of the WLAN AP. wireless function. The centralized management architecture is also called the "thin" AP architecture, and the management rights are generally concentrated on the AC (Access Controller, wireless controller). The AC manages the IP (Internet Protocol) address, authentication, and encryption of the user equipment. The WLAN AP only has encryption, data forwarding, and radio frequency functions, and cannot work independently. The Control and Provisioning of Wireless Access Points (CAPWAP) specification protocol is adopted between the WLAN AP and the AC. Optionally, the foregoing WLAN AP may be integrated with the base station. Because the embodiment of the present invention mainly relates to the data forwarding function of the WLAN AP, the two network architectures of the foregoing WLAN AP can be applied.

For example, as shown in FIG. 1 , the eNB, the user equipment, and the WLAN in the embodiment of the present invention are used as an example of a WLAN WT located in a WLAN AP, an eNB (evolved Node B, an evolved base station), and a WLAN WT. The configuration structure of each protocol stack in the AP is described.

First, the configuration of the protocol stack in the eNB is described:

The eNB protocol stack may have an eNB first protocol stack and an eNB second protocol stack, where the eNB first protocol stack is used to implement data processing for communication with the user equipment on the eNB side, and the eNB second protocol stack is used in the eNB. The side implements data processing for communication with the WLAN AP. As the first protocol stack of the eNB, for example, the existing communication protocol stack between the eNB and the user equipment can be implemented within the protection scope. As the eNB second protocol stack, it can be directly aggregated on the at least one protocol layer of the first protocol stack of the eNB through the interface.

The eNB first protocol stack and the eNB second protocol stack may include a user plane protocol stack, and may also include a user plane protocol stack and a control plane protocol stack. For example, as shown in FIG. 1, the eNB first protocol stack may include the following protocol layers: PDCP (Packet Data Convergence Protocol), RLC (Radio Link Control, Radio Link Control Layer), and MAC (Media Access Control). , media intervention control layer), PHY (Physical, physical layer). As the eNB second protocol stack, may include a user plane protocol The stack may also include a control plane protocol stack. In the present invention, the transport layer of the user plane protocol stack adopts a newly defined Xw-U (Xw user, Xw interface user protocol), and the specific Xw-U protocol may be an IP layer protocol, further There is also a new adaptation protocol layer on top of the IP layer protocol. As shown in FIG. 1 , the control layer protocol stack transport layer of the present invention uses SCTP (Stream Control Transmission Protocol) protocol, TCP (Transmission Control Protocol) or UDP (User Datagram Protocol). Protocol), the application layer adopts the newly defined XwAP (Xw Application Protocol) protocol. The eNB second protocol stack may be aggregated in PDCP or RLC of the first protocol stack of the eNB. The eNB first protocol stack can be offloaded in PDCP or RLC. In this embodiment, the PDCP layer of the first base station protocol stack is aggregated and aggregated as an example, but the present invention does not limit this.

Then, the configuration of the protocol stack in the WLAN is explained:

The WLAN protocol stack has a WLAN first protocol stack and a WLAN second protocol stack. The WLAN first protocol stack is configured to implement data processing for communication with the eNB in the WLAN WT (WLAN Termination, WLAN node), where the WLAN second protocol stack is used to implement the WLAN AP side with the user equipment. Data processing for communication. Specifically, if the WT is located in the WLAN AP, the communication between the WT and the WLAN AP is implemented internally. If the WT is independent of the WLAN AP, the communication protocol stack between the WT and the WLAN AP is IEEE (Institute of Electrical and Electronics Engineers, Electrical and Institute of Electrical Engineers) to define.

The WLAN first protocol stack may include a user plane protocol stack, and may also include a control plane protocol stack and a user plane protocol stack, which are not limited by the present invention. The WLAN second protocol stack may use, for example, a protocol stack of an existing wireless local area network communication, for example, a WIFI protocol stack, a MAC layer, a PHY layer, and optionally, the WLAN AP second protocol stack may also include an LLC (Logical Link Control). Link Control) layer.

Finally, the configuration of the protocol stack in the user equipment is described:

The user equipment protocol stack may have a user equipment first protocol stack and a user equipment second protocol stack, where the user equipment first protocol stack is used to implement data processing for communication with the eNB on the user equipment side, and the user equipment second protocol stack Used to implement on the user device side Data processing for communication between WLAN APs. Specifically, the second user plane protocol stack of the user equipment may include the following protocol layer, an IP layer, an LLC layer, a MAC layer, and a PHY layer. Further, a new adaptation protocol layer may be included on the IP layer.

On the eNB side, the first part of the downlink protocol data unit that is branched out for the first protocol stack of the eNB is called a first protocol data unit, and on the user equipment side, the first part of the uplink protocol data unit that is branched out for the first protocol stack of the user equipment is called Second protocol data unit. That is, the offloaded uplink data and the downlink data are protocol data units, but the invention is not limited.

Similarly, when the WT is located in the AC, the protocol stack is configured as described above, and the AC to the AP follows the protocol stack of the existing wireless local area network communication, and the rest are similar, and the present invention does not repeat this.

In the embodiment of the present invention, for a non-cellular network, the user-side terminal device is an STA (Station), and for the wireless cellular network, the user-side terminal device is a UE. In the heterogeneous network scenario of the non-cellular network and the wireless cellular network in the embodiment of the present invention, the user-side terminal device may be referred to as a UE or an STA, and can receive services of two networks. For convenience of description, the following are collectively referred to as UEs.

Example 1

An embodiment of the present invention provides a data transmission method. As shown in FIG. 2, the method includes:

S101. The cellular access device sends the IP information to the UE.

The IP information includes at least a non-cellular IP address of the UE.

Further, the IP information further includes: an IP address of the cellular access device.

Further, the IP information further includes: a transport layer protocol and/or a port number, where the port number includes a port number of the UE and a port number of the cellular access device, and the port number is a port number corresponding to the packet data channel PDCP protocol or wireless The port number corresponding to the link control layer RLC protocol. The transport layer protocol is the Transmission Control Protocol TCP protocol, the User Datagram Protocol UDP protocol, the PDCP protocol, or the RLC protocol.

Further, the cellular access device is further capable of transmitting the UE identifier to the UE, so that the UE accesses the non-cellular access device by using the UE identifier, where the UE identifier is cellular access The MAC address assigned by the device to the UE, the MAC address obtained through the TSMI, CRNTI or X2AP ID, or the MAC address of the UE on the non-cellular access device.

It should be noted that the non-cellular IP address of the UE is obtained by the cellular access device using the UE identifier. Specifically, the cellular access device uses the UE identifier, and the method for acquiring the non-cellular IP address of the UE includes: the cellular access device selects a non-cellular IP address of the UE from the IP address pool; or the cellular access device receives the dynamic state of the wireless local area network. The host sets the non-cellular IP address of the UE sent by the protocol WLAN DHCP; or the cellular access device receives the non-cellular IP address of the UE sent by the packet data network gateway PGW.

It should be noted that, the method for the cellular access device to receive the non-cellular IP address of the UE sent by the WLAN dynamic host setting protocol WLAN DHCP is specifically that the cellular access device sends the request information to the WLAN DHCP, requesting to acquire the non-cellular IP address of the UE. After receiving the request information sent by the cellular access device, the WLAN DHCP sends the non-cellular IP address of the UE to the cellular access device.

Further, after the cellular access device uses the UE identifier to obtain the non-cellular IP address of the UE, the method further includes: the cellular access device sends the non-cellular IP address of the UE and the UE identifier to the non-cellular access device.

Further, the protocol data unit transmitted during the data transmission process between the cellular access device and the UE through the non-cellular access device for multi-stream aggregation includes radio bearer information; the radio bearer information is located in the IP header of the protocol data unit, and the PDCP header In the medium and extended PDCP header (the extended PDCP header identifier may be indicated by the reserved bit in the source PDCP header) or the newly added adaptation layer header; the radio bearer information is the radio access bearer identifier ERAB ID, data wireless The bearer identifier DRB ID, the logical channel identifier LCID, or the radio bearer mapping value. The radio bearer mapping value may be a radio bearer mapping relationship with the port number, where the radio bearer mapping relationship may be determined by a communication protocol agreement or a cellular access device. Or the radio bearer mapping value and the ERAB ID and the DRB ID and the LCID have a certain radio bearer mapping relationship, where the radio bearer mapping relationship may be determined by a communication protocol agreement or a cellular access device, for example, the radio bearer mapping relationship is DRB ID1 or ERAB. The radio bearer mapping value of ID1 or LCID1 is 0000, and the radio bearer mapping value of DRB ID2 or ERAB ID2 or LCID2 is 0001. Wait. If the radio bearer information is a radio bearer mapping value, the cellular access device is further capable of transmitting a radio bearer mapping value and a radio bearer mapping relationship of the DRB ID or the LCID to the UE. If the radio bearer information is an ERAB ID, the cellular access device can also send a radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID to the UE.

The IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header further includes: priority information corresponding to the radio bearer mapping value, priority information corresponding to the radio access bearer identifier, or a logical channel corresponding to the logical channel identifier. The priority information, or the priority information of the radio bearer corresponding to the radio bearer identifier. The above priority information is consistent. The priority information may be a QCI (QoS Class Identifier).

S102. The data transmission between the cellular access device and the UE by using the non-cellular IP address of the UE by the non-cellular access device for multi-stream aggregation.

The cellular access device sends the IP information to the UE. Since the cellular access device establishes an IP route with the UE through the non-cellular IP address of the UE, the cellular access device serves as a convergence point and a distribution point for data transmission, and The incoming device is sensitive to the quality change of the network link of the WLAN, thereby ensuring service continuity, improving the user experience, and avoiding the insensitivity of the quality change of the WLAN network link when the EPC is used as the convergence point and the split point. Business is not continuous.

Specifically, the detailed process of the cellular access device transmitting IP information to the UE, and the data transmission between the cellular access device and the UE through the non-cellular access address of the UE through the non-cellular access device for multi-stream aggregation will be in the following embodiments. A detailed description will be given here, and will not be described here.

An embodiment of the present invention provides a data transmission method, in which an IP information is sent to a UE by using a cellular access device, where the IP information includes at least a non-cellular IP address of the UE, and the non-cellular connection between the cellular access device and the UE through the IP information. Data transmission into the device for multi-stream aggregation. Since the cellular access device and the UE establish an IP route through the IP address of the UE, the cellular access device is used as a convergence point and a distribution point for data transmission, and because the quality of the network link of the cellular access device to the wireless local area network Change sensitive, thus ensuring business continuity, improving user experience, avoiding EPC as a convergence point and points At the time of the flow point, the service is not sensitive to the quality change of the network link of the WLAN.

Example 2

The embodiment of the invention provides a data transmission method. As shown in FIG. 3, the method includes:

S201. The UE acquires IP information.

The IP information includes at least a non-cellular IP address of the UE.

Specifically, the method for the UE to obtain the IP information specifically includes: the UE receives the non-cellular IP address of the UE sent by the cellular access device; or the UE receives the non-cellular IP address of the UE that is sent by the PGW.

Further, the UE is further capable of receiving the UE identity sent by the cellular access device, and accessing the non-cellular access device by using the UE identity. The UE identifier is a MAC address allocated by the cellular access device for the UE, a MAC address obtained by using the TSMI, the CRNTI or the X2AP ID, or the MAC address of the UE in the non-cellular.

Specifically, the method for the UE to use the UE identifier to access the non-cellular access device includes: the UE accessing the non-cellular access device by using the non-cellular IP address of the UE by using the UE identifier; or the UE using the UE identifier to the non-cellular network The DHCP server requests to access the non-cellular access device using the non-cellular IP address of the UE.

Further, after the UE acquires the IP information, the UE sends the non-cellular IP address of the UE and the UE identifier to the non-cellular access device.

Further, the protocol data unit transmitted during the data transmission process between the cellular access device and the UE through the non-cellular access device for multi-stream aggregation includes radio bearer information; the radio bearer information is located in the IP header of the protocol data unit, and the PDCP header In the medium and extended PDCP header (the extended PDCP header identifier may be indicated by the reserved bit in the source PDCP header) or the newly added adaptation layer header; the radio bearer information is the radio access bearer identifier ERAB ID, data wireless The bearer identifier DRB ID, the logical channel identifier LCID, or the radio bearer mapping value. The radio bearer mapping value may be a radio bearer mapping relationship with the port number, where the radio bearer mapping relationship may be determined by a communication protocol agreement or a cellular access device. Or, the radio bearer mapping value and the ERAB ID and There is a certain radio bearer mapping relationship between the DRB ID and the LCID. The radio bearer mapping relationship may be determined by the communication protocol or the cellular access device. For example, the radio bearer mapping relationship of the radio bearer mapping relationship is DRB ID1 or ERAB ID1 or LCID1. 0000, the radio bearer mapping value of DRB ID2 or ERAB ID2 or LCID2 is 0001 or the like. If the radio bearer information is a radio bearer mapping value, the UE can receive the radio bearer mapping value and the radio bearer mapping relationship of the DRB ID or the LCID to the UE. If the radio bearer information is an ERAB ID, the UE can receive the radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID to the UE.

S202. The multi-stream aggregation data transmission is performed between the UE and the cellular access device by using the non-cellular IP address of the UE by using the non-cellular access device.

An embodiment of the present invention provides a data transmission method, in which an IP information is sent to a UE by using a cellular access device, where the IP information includes at least a non-cellular IP address of the UE, and the non-cellular connection between the cellular access device and the UE through the IP information. Data transmission into the device for multi-stream aggregation. Since the cellular access device and the UE establish an IP route through the IP address of the UE, the cellular access device is used as a convergence point and a distribution point for data transmission, and because the quality of the network link of the cellular access device to the wireless local area network The change is sensitive, thus ensuring business continuity, improving the user experience, and avoiding business discontinuities caused by insensitivity to the quality change of the wireless LAN network link when the EPC is used as a convergence point and a distribution point.

Example 3

The embodiment of the invention provides a data transmission method. As shown in FIG. 4, the method includes:

S301. The non-cellular access device receives the non-cellular IP address and the UE identifier of the UE that is sent by the UE or the UE.

The UE identifier is a MAC address allocated by the cellular access device for the UE, a MAC address obtained by using the TSMI, the CRNTI or the X2AP ID, or the MAC address of the UE in the non-cellular.

Further, the protocol data unit transmitted during the data transmission process between the cellular access device and the UE through the non-cellular access device for multi-stream aggregation includes radio bearer information; the radio bearer information is located in the IP header of the protocol data unit, and the PDCP header In the medium and extended PDCP header (the extended PDCP header identifier may be indicated by the reserved bit in the source PDCP header) or the newly added adaptation layer header; the radio bearer information is the radio access bearer identifier ERAB ID, data wireless The bearer identifier DRB ID, the logical channel identifier LCID, or the radio bearer mapping value. The radio bearer mapping value may be a radio bearer mapping relationship with the port number, where the radio bearer mapping relationship may be determined by a communication protocol agreement or a cellular access device. Or, the radio bearer mapping value and the ERAB ID and the DRB ID and the LCID have a certain radio bearer mapping relationship, where the radio bearer mapping relationship may be determined by a communication protocol agreement or a cellular access device, for example, the radio bearer mapping relationship is a DRB ID1 or The radio bearer mapping value of ERAB ID1 or LCID1 is 0000, and the radio bearer mapping value of DRB ID2 or ERAB ID2 or LCID2 is 0001. If the radio bearer information is a radio bearer mapping value, the UE can receive the radio bearer mapping value and the radio bearer mapping relationship of the DRB ID or the LCID to the UE. If the radio bearer information is an ERAB ID, the UE can receive the radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID to the UE.

An embodiment of the present invention provides a data transmission method, in which an IP information is sent to a UE by using a cellular access device, where the IP information includes at least a non-cellular IP address of the UE, and the non-cellular connection between the cellular access device and the UE through the IP information. Multi-stream aggregation into the device Data transfer. Since the cellular access device establishes an IP route with the UE through the non-cellular IP address of the UE, the cellular access device acts as a convergence point and a distribution point for data transmission, and because the cellular access device connects to the wireless local area network network link The quality changes are sensitive, thus ensuring business continuity, improving the user experience, and avoiding business discontinuities caused by insensitivity to the quality changes of the wireless LAN network link when the EPC is used as a convergence point and a distribution point.

Example 4

An embodiment of the present invention provides a data transmission method. As shown in FIG. 5, the method includes:

S401. The PGW sends the IP information to the UE.

The IP information includes at least a non-cellular IP address of the UE.

Further, before the PGW sends the IP information to the UE, the PGW can also obtain the non-cellular IP address of the UE by using the UE identifier, where the UE identifier is a MAC address allocated by the cellular access device for the UE, and the TSMI, CRNTI or S5UE ID is adopted. The resulting MAC address, or the UE's non-cellular MAC address.

Specifically, the PGW uses the UE identifier, and the method for obtaining the non-cellular IP address of the UE includes: the PGW allocates the non-cellular IP address of the UE to the UE; or the PGW receives the non-cellular IP address of the UE that is sent by the WLAN DHCP.

Example 5

An embodiment of the present invention provides a data transmission method, where a cellular access device is an eNB, and a non-cellular access device is a WT located in a WLAN AP, and the PDCP layer is divided into an example. Specifically, in the embodiment of the present invention, the multi-stream aggregation request information and the multi-flow aggregation acknowledgement information may be sent in the form of a message, which is not limited in the present invention. As shown in Figure 6, the method includes:

S501. The eNB sends the IP information to the UE.

The IP information includes at least a non-cellular IP address of the UE.

Further, the IP information further includes: an IP address of the eNB.

Further, the IP information further includes: a transport layer protocol and/or a port number, where the port number includes a port number of the UE and a port number of the eNB, and the port number is a port number corresponding to the PDCP protocol or a port number corresponding to the RLC protocol, The transport layer protocol is TCP protocol, UDP protocol, PDCP protocol or RLC protocol.

It should be noted that the port number can be pre-agreed, for example, OAM (Operation Administration and Maintenance) configuration, UE and eNB factory configuration, IETF (The Internet Engineering Task Force, Internet Engineering Task Force) ) Registered, 3GPP-defined (such as the port number corresponding to the newly defined PDCP protocol or the port number corresponding to the RLC protocol).

Generally, the eNB sends IP information to the UE through an RRC message, an air interface message, or a newly defined RRC reconfigration message.

It should be added that before the eNB sends the IP information to the UE, the eNB also needs to use the UE identifier to obtain the non-cellular IP address of the UE.

It should be noted that the method for the eNB to use the UE identifier to obtain the non-cellular IP address of the UE includes the following three situations: the eNB selects the non-cellular IP address of the UE from the IP address pool; or the eNB receives the dynamic local area network dynamic host setting. The non-cellular IP address of the UE transmitted by the WLAN DHCP is negotiated; or the eNB receives the non-cellular IP address of the UE transmitted by the packet data network gateway PGW.

It should be noted that, the method for the eNB to receive the non-cellular IP address of the UE sent by the WLAN DHCP is specifically that the eNB sends the request information to the WLAN DHCP, requesting to acquire the non-cellular IP address of the UE, and after receiving the request information sent by the eNB, the WLAN DHCP sends the request information. The non-cellular IP address of the UE to the eNB.

The UE identifier is a media access control MAC address allocated by the eNB for the UE. The MAC address obtained by the temporary mobile subscriber identity TSMI, the cell radio network temporary identity CRNTI or the X2 application protocol identifier X2AP ID, or the MAC address of the UE in the WLAN AP.

It is to be noted that, before the eNB uses the UE identifier to obtain the non-cellular IP address of the UE, the eNB can configure the UE to perform measurement and reporting on the non-cellular network. After receiving the measurement result of the UE to the non-cellular network, the eNB determines whether data transmission with the UE through the WLAN AP through the non-cellular IP address of the UE is required. Alternatively, the eNB can also obtain an available WLAN AP directly through the OAM, and determine, according to the load of the WLAN AP, whether data transmission between the UE and the multi-stream aggregation via the WLAN AP by the non-cellular IP address of the UE is required.

S502. The eNB sends the non-cellular IP address of the UE and the UE identifier to the WLAN AP.

The eNB sends the non-cellular IP address and the UE identifier of the UE to the WLAN AP, so that when receiving the multi-stream aggregated data sent by the eNB, the WLAN AP can identify the UE according to the non-cellular IP address and the UE identifier of the UE, and send the UE. Multi-stream aggregated data to the UE.

S503. The eNB sends the UE identifier to the UE.

The UE identifier is a media access control MAC address allocated by the eNB for the UE, a MAC address obtained by the temporary mobile subscriber identity TSMI, the cell radio network temporary identifier CRNTI or the X2 application protocol identifier X2AP ID, or the MAC address of the UE in the WLAN AP.

The eNB sends the UE identity to the UE such that the UE accesses the WLAN AP using the UE identity.

It should be noted that the relationship between the step S501 and the step S503 is not performed. The eNB may send the IP information to the UE first, and then send the UE identifier to the UE. The UE identifier may be sent to the UE before sending the IP information to the UE. The IP information and the UE identifier may also be sent together to the UE, and the invention is not limited.

Generally, the eNB sends the UE identifier to the UE through an RRC message, an air interface message, or a newly defined RRC reconfigration message.

S504. The eNB sends the multi-stream aggregation request information to the UE, where the multi-stream convergence is requested. The request information includes at least a basic service set identifier BSSID of the WLAN AP.

S505. The UE accesses the WLAN AP by using the UE identifier.

Specifically, the process of the UE using the UE identifier to access the WLAN AP includes: the UE accessing the WLAN AP by using the UE's non-cellular IP address through the UE identifier; or the UE using the UE identifier to apply to the DHCP server of the non-cellular network. The non-cellular IP address of the UE is connected to the WLAN AP.

S506. The eNB receives the multi-flow convergence acknowledgement information sent by the UE.

It is to be noted that, if the UE cannot accept the multi-flow aggregation request information due to the user preference, the terminal configuration, or the ANDSF policy, or the UE does not successfully access the WLAN AP, the eNB receives the multi-stream aggregation failure information sent by the UE.

S507. The eNB and the UE perform multi-stream aggregation data transmission via the WLAN AP through the non-cellular IP address of the UE.

For example, the process of data transmission by the eNB and the UE through the non-cellular IP address of the UE through the WLAN AP is as follows:

In the direction of downlink data transmission, the eNB adds a UDP and/or IP header to the PDCP PDU that is offloaded to the non-cellular network, or if there is an adaptation protocol layer, the header corresponding to the adaptation layer is added before the UDP header is added. In the added UDP header, the eNB fills in the port number of the UE as the port number of the UE, such as the port number of the PDCP protocol, and the source connection port number is filled in as the port number of the eNB. The source port number can be the same as the destination port number. In the added IP header, the target address is filled in as the non-cellular IP address of the UE, and the source address is filled in as the IP address of the eNB. The radio bearer information is located in the IP header of the protocol data unit, or in the PDCP header, or in the extended PDCP header (the extended PDCP header identifier can be indicated in the source PDCP header), or the newly added adaptation layer header, the radio bearer The information is a radio access bearer identifier ERAB ID, a data radio bearer identifier DRB, a logical channel identifier LCID, or a radio bearer mapping value.

Subsequently, the eNB will add the PDCP protocol data unit with UDP and/or IP headers. Layer 1 and Layer 1 are transmitted to Layer 1 of the protocol stack of the WLAN AP, and after processing through Layer 1 and Layer 2 of the WLAN AP, the PDCP protocol data unit to which the UDP and/or IP header is added is restored, and the WLAN AP adds the LLC header. (If there is no LLC header, the WLAN AP does not need to perform this step), and then generates a MAC protocol data unit according to the correspondence between the non-cellular IP address of the UE and the UE identifier, and transmits the MAC protocol data unit to the UE through the PHY layer.

After receiving the MAC protocol data unit packet, the PHY layer of the UE deletes the MAC header and the LLC header in turn (if the LLC header is not used, the UE does not need to perform this step), and obtains the PDCP protocol data unit with the UDP and/or IP header added. Handed over by the adaptation layer. Whether the protocol data unit is transmitted from the eNB is determined according to the IP address of the eNB in the IP header. If the protocol data unit is transmitted from the eNB and the bearer information is read at the same time, if the radio bearer information is in the IP header or the adaptation layer header, the radio bearer information is read from the IP header or the adaptation layer header, and the IP header is deleted. Or if there is a new adaptation layer, the header corresponding to the adaptation layer is deleted, and the PDCP protocol data unit is handed over to the PDCP entity corresponding to the bearer. If the radio bearer information is in the PDCP header or the extended PDCP header, the PDCP data packet is directly transferred to the PDCP entity, and the PDCP entity identifies the bearer according to the radio bearer information of the PDCP header and the extended PDCP header, and then delivers the PDCP corresponding to the bearer. Entity; if the eNB has multiple bearers, but only one bearer is offloaded, the eNB needs to inform the UE of the information of the offloaded bearer through the air interface message, and the UE hands over the received shunt data according to the bearer information. The UE processes the PDCP entity corresponding to the bearer.

In the direction of uplink data transmission, the UE adds a UDP and/or IP header to the PDCP PDU that is offloaded to the non-cellular network, or if there is an adaptation protocol layer, the header corresponding to the adaptation layer is added before the UDP header is added. In the added UDP header, the UE fills in the port number of the eNB as the port number of the eNB, such as the port number of the PDCP protocol, and the source connection port is filled in as the port number of the UE. The source port number can be the same as the destination port number. In the IP header, the destination address is filled in as the IP address of the eNB, and the source address is filled in as the non-cellular IP address of the UE. If multiple bearers exist, the port number corresponding to the bearer may be filled in the UDP header, for example, Corresponding to DRB1 The port number of the PDCP protocol is 5000. Different IP addresses are defined for different bearers, or the radio bearer information is filled in the IP header.

Subsequently, the UE adds an LLC header to the PDCP protocol data unit to which the UDP and/or IP header is added (if the LLC header is not used, the UE does not need to perform this step), generates a MAC protocol data unit, and transmits the MAC protocol data unit through the PHY layer. Give WLAN AP.

After receiving the MAC protocol data unit, the PHY layer of the WLAN AP deletes the MAC header and the LLC header in turn (if there is no LLC header, the WLAN AP does not need to perform this step), and obtains the PDCP protocol data unit with the UDP and/or IP header added. Then, according to the IP address of the eNB in the IP header, the protocol data unit is processed through Layer 2 and Layer 1 and then forwarded to Layer 1 of the eNB protocol stack. After receiving the protocol data unit, the eNB processes through Layer 1 and Layer 2 to restore the data. The PDCP protocol data unit of UDP and/or IP is added and processed by the adaptation layer. The IP address of the eNB is determined by the destination address in the IP header, and the bearer information is read at the same time. If the radio bearer information is in the IP header or the adaptation layer header, the radio bearer information is read from the IP header or the adaptation layer header, and the IP address is deleted. The header, or if there is a new adaptation layer, deletes the header corresponding to the adaptation layer, and hands the PDCP data packet to the PDCP entity corresponding to the bearer. If the radio bearer information is in the PDCP header or the extended PDCP header, the PDCP data packet is directly transferred to the PDCP entity, and the PDCP entity identifies the bearer according to the radio bearer information of the PDCP header and the extended PDCP header, and then delivers the PDCP corresponding to the bearer. In the scenario of multiple bearer offloading, the bearer information corresponding to the port number or the IP address is handed over to the PDCP entity of the corresponding bearer. It should be noted that if the eNB has multiple bearers but only one bearer is offloaded, the eNB needs to inform the UE of the information of the offloaded bearer through the air interface message, and the UE submits the received shunt data to the UE according to the bearer information. The PDCP entity is hosted for processing.

An embodiment of the present invention provides a data transmission method, in which an IP information is sent to a UE by using a cellular access device, where the IP information includes at least a non-cellular IP address of the UE, and the non-cellular connection between the cellular access device and the UE through the IP information. Data transmission into the device for multi-stream aggregation. Since the cellular access device establishes with the UE through the IP address of the UE IP routing, which makes the cellular access device a convergence point and a distribution point for data transmission, and because the cellular access device is sensitive to the quality change of the wireless LAN network link, thereby ensuring service continuity, improving user experience, and avoiding When the EPC is used as a convergence point and a distribution point, the service is not sensitive to the quality change of the network link of the wireless local area network.

Example 6

The embodiment of the present invention provides a data transmission method, which is described by taking a cellular access device as an eNB and a non-cellular access device as a WLAN AP. In the embodiment of the present invention, the multi-flow aggregation request information and the multi-flow aggregation confirmation are performed. The information can be sent in the form of a message, and the invention is not limited. As shown in FIG. 7, the method includes:

S601. The eNB sends the multi-stream aggregation request information to the UE.

The multi-flow aggregation request information includes at least a basic service set identifier BSSID, IP information, and a UE identifier of the WLAN AP.

The IP information includes at least a non-cellular IP address of the UE.

Further, the IP information further includes: an IP address of the eNB.

Further, the IP information further includes: a transport layer protocol and/or a port number, where the port number includes a port number of the UE and a port number of the eNB, and the port number is a port number corresponding to the packet data channel PDCP protocol or a radio link control The port number corresponding to the layer RLC protocol. The transport layer protocol is the Transmission Control Protocol TCP protocol, the User Datagram Protocol UDP protocol, the PDCP protocol, or the RLC protocol.

It should be added that before the eNB sends the multi-stream aggregation request information to the UE, the eNB also needs to use the UE identifier to obtain the non-cellular IP address of the UE.

S602. The eNB sends the non-cellular IP address of the UE and the UE identifier to the WLAN AP.

Specifically, the process of the eNB transmitting the non-cellular IP address of the UE and the UE identifier to the WLAN AP has been described in detail in step S502 of Embodiment 5, and details are not described herein again.

S603. The UE accesses the WLAN AP by using the UE identifier.

S604. The eNB receives the multi-flow convergence acknowledgement information sent by the UE.

S605. The eNB and the UE perform multi-stream aggregation data transmission via the WLAN AP by using the non-cellular IP address of the UE.

Specifically, the process of performing multi-stream aggregation data transmission between the eNB and the UE through the non-cellular IP address of the UE via the WLAN AP has been described in detail in step S507 of Embodiment 5, and details are not described herein again.

Example 7

The embodiment of the present invention provides a data transmission method, which is described by taking a cellular access device as an eNB and a non-cellular access device as a WLAN AP. In the embodiment of the present invention, the multi-flow aggregation request information and the multi-flow aggregation confirmation are performed. The information can be sent in the form of a message, and the invention is not limited. As shown in Figure 8, the method includes:

S701. The eNB sends the IP information to the UE.

The IP information includes at least a non-cellular IP address of the UE.

Further, the IP information further includes: an IP address of the eNB.

Specifically, the process in which the eNB uses the UE identifier to obtain the non-cellular IP address of the UE has been described in detail in step S501 of Embodiment 5, and details are not described herein again.

S702. The eNB sends a UE identifier to the UE.

It should be noted that step S701 and step S702 may be separately sent by independent messages, and may also be sent by multi-stream aggregation request information, where the multi-stream aggregation request information includes at least a basic service set identifier BSSID of the WLAN AP.

If the step S701 and the step S702 are separately sent by the independent message, the eNB further needs to send the multi-stream aggregation request information to the UE, and the step S701, the step S702, and the eNB send the multi-stream aggregation request information to the UE without performing the sequence relationship; S701 and step S702 are sent to the UE by using the multi-flow aggregation request information, where the multi-flow aggregation request information includes a basic service set identifier BSSID, IP information, and a UE identifier of the WLAN AP.

The eNB is also capable of receiving the multi-stream convergence acknowledgement information sent by the UE, because the eNB sends the multi-stream aggregation request information to the UE.

S703. The UE sends the non-cellular IP address of the UE and the UE identifier to the WLAN AP.

The UE sends the non-cellular IP address of the UE and the UE identifier to the WLAN AP, so that the WLAN AP can identify the destination end according to the non-cellular IP address and the UE identifier of the UE when receiving the multi-stream aggregated data sent by the source device. The device sends the multi-stream aggregated data to the destination device. If the source device is the UE, the destination device is the eNB; if the source device is the eNB, the destination device is the UE.

S704. The UE accesses the WLAN AP by using the UE identifier.

S705. The eNB and the UE perform multi-stream aggregation data transmission via the WLAN AP through the non-cellular IP address of the UE.

Example 8

The embodiment of the present invention provides a data transmission method, which is described by taking a cellular access device as an eNB and a non-cellular access device as a WLAN AP. As shown in FIG. 9, the method includes:

S801. The eNB sends the IP information to the UE.

The IP information includes at least a non-cellular IP address of the UE.

Further, the IP information further includes: an IP address of the eNB.

It should be added that before the eNB sends the IP information to the UE, the eNB uses the UE identifier to acquire the non-cellular IP address of the UE.

S802. The eNB sends the UE identifier to the UE.

S803. The UE accesses the WLAN AP by using the UE identifier.

S804. The UE sends a BSSID of the WLAN AP to the eNB.

S805. The eNB sends the non-cellular IP address and the UE identifier of the UE to the WLAN AP.

S806. The eNB and the UE perform multi-stream aggregation data transmission via the WLAN AP through the non-cellular IP address of the UE.

Specifically, the eNB and the UE pass the WLAN through the non-cellular IP address of the UE. The process of data transmission of the multi-stream aggregation by the AP has been described in detail in step S507 of Embodiment 5, and details are not described herein again.

Example 9

The embodiment of the present invention provides a data transmission method, which is described by taking a cellular access device as an eNB and a non-cellular access device as a WLAN AP. As shown in FIG. 10, the method includes:

S901. The eNB sends the IP information to the UE.

The IP information includes at least a non-cellular IP address of the UE.

Further, the IP information further includes: an IP address of the eNB.

S902. The eNB sends the UE identifier to the UE.

S903. The UE uses the UE identifier to access the WLAN AP.

S904. The UE sends the non-cellular IP address of the UE and the UE identifier to the WLAN AP.

Specifically, the process of the UE transmitting the non-cellular IP address of the UE and the UE identifier to the WLAN AP has been described in detail in step S704 of Embodiment 7, and details are not described herein again.

S905. The UE sends a BSSID of the WLAN AP to the eNB.

S906. The eNB and the UE perform multi-stream aggregation data transmission via the WLAN AP through the non-cellular IP address of the UE.

Example 10

The embodiment of the present invention provides a data transmission method, which is described by taking a cellular access device as an eNB and a non-cellular access device as a WLAN AP. In the embodiment of the present invention, Both the multi-stream aggregation request information and the multi-stream aggregation acknowledgement information may be sent in the form of a message, which is not limited in the present invention. As shown in FIG. 11, the method includes:

S1001, PGW sends IP information to the UE.

The IP information includes at least a non-cellular IP address of the UE.

Further, the IP information further includes: an IP address of the eNB.

It should be noted that before the PGW sends the IP information to the UE, the PGW also needs to use the UE identifier to obtain the non-cellular IP address of the UE.

The UE identifier is a MAC address allocated by the eNB for the UE, a MAC address obtained by the TSMI, CRNTI or S5 user equipment identifier S5UE ID, or a MAC address of the UE in the WLAN AP.

S1002: The eNB sends the non-cellular IP address of the UE and the UE identifier to the WLAN AP.

S1003. The eNB sends the UE identifier to the UE.

It should be noted that step S1003 may be separately sent by an independent message, or may be sent by multi-stream aggregation request information, where the multi-stream aggregation request information includes at least a basic service set identifier BSSID of the WLAN AP.

If the step S1003 is separately sent by the independent message, the eNB also needs to send the multi-stream aggregation request information to the UE, and the step S1003 and the eNB send the multi-flow aggregation request information to the UE without performing the sequence relationship; if the step S1003 passes the multi-flow aggregation request The information is sent to the UE, and the multi-flow aggregation request information includes a basic service set identifier BSSID and a UE identifier of the WLAN AP.

S1004. The UE accesses the WLAN AP by using the UE identifier.

S1005: The eNB and the UE perform multi-stream aggregation data transmission via the WLAN AP through the non-cellular IP address of the UE.

Example 11

The embodiment of the invention provides a data transmission method. As shown in FIG. 12, the method includes:

S1101: A cellular access device receives a cellular IP address of a UE sent by a UE.

The cellular IP address of the UE is an IP address allocated by the cellular core network to the UE.

Specifically, after the cellular access device receives the cellular IP address of the UE, the cellular access device may associate the cellular IP address of the UE with the LTE identifier of the UE, and the LTE identifier of the UE may be a CRNTI (Cell Radio Network Temmporary Identify cell wireless) Temporary network identification).

Further, the cellular access device is further capable of receiving the UE identity sent by the UE, where the UE identity is the MAC address of the UE in the non-cellular.

Specifically, after the cellular access device receives the MAC address of the UE in the non-cellular, the cellular access device may associate the cellular IP address of the UE with the non-cellular MAC address of the UE.

After the cellular access device receives the cellular IP address of the UE transmitted by the UE, the cellular access device sends the cellular IP address of the UE and the UE identifier to the non-cellular access device.

Further, the cellular access device is also capable of transmitting the IP address of the cellular access device to the UE.

Further, the cellular access device sends the IP address of the cellular access device to the UE. The cellular access device sends the transport layer protocol and/or the port number to the UE, where the port number includes the port number of the UE and the port number of the cellular access device, and the port number is the port number corresponding to the PDCP protocol or the port number corresponding to the RLC protocol. The transport layer protocol is TCP protocol, UDP protocol, PDCP protocol or RLC protocol.

Further, the protocol data unit transmitted during the data transmission process between the cellular access device and the UE through the non-cellular access device for multi-stream aggregation includes radio bearer information; the radio bearer information is located in the IP header of the protocol data unit, and the PDCP header Medium or extended PDCP header (the extended PDCP header identifier may be indicated by a reserved bit in the source PDCP header) or a new adaptation layer header; the radio bearer information is ERAB ID, DRB ID, LC ID or wireless The bearer map value. Radio bearer mapping value and ERAB The ID, the DRB ID, and the LC ID have a certain radio bearer mapping relationship. The radio bearer mapping relationship may be determined by a communication protocol or a cellular access device. For example, the radio bearer mapping relationship is a radio of DRB ID1, ERAB ID1, or LC ID1. The bearer mapping value is 0000, and the radio bearer mapping value of DRB ID2, ERAB ID2, or LC ID2 is 0001 or the like. If the radio bearer information is a radio bearer mapping value, the cellular access device can also send a radio bearer mapping value and a radio bearer mapping relationship of the DRB ID or the LC ID to the UE. If the radio bearer information is an ERAB ID, the cellular access device can also send a radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID to the UE.

The IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header further includes: a priority information of the logical channel corresponding to the LC ID, a priority information of the data radio bearer corresponding to the DRB ID, and a radio bearer mapping value. The priority information of the radio bearer mapping value or the priority information of the radio access bearer corresponding to the ERAB ID. The priority information may be a QCI (QoS Class Identifier). The priority information of the logical channel, the priority information of the radio bearer of the data, the priority information of the radio bearer mapping value, and the priority information of the radio access bearer are consistent.

The IP header is an IP header of a protocol data unit transmitted during a data transmission process in which the cellular access device and the UE perform multi-stream aggregation through the non-cellular access device. The PDCP header is a PDCP header of a protocol data unit transmitted during a data transmission process between a cellular access device and a UE for multi-stream aggregation via a non-cellular access device. The extended PDCP header is the newly defined extended PDCP header. The adaptation layer is a protocol layer between the PDCP and the IP layer, and the header corresponding to the adaptation layer is a protocol data unit transmitted during data transmission between the cellular access device and the UE through the non-cellular access device for multi-stream aggregation. The header of the adaptation layer.

It should be noted that the data transmitted between two adjacent protocol layers in the communication system is referred to as a higher layer protocol data unit in the adjacent protocol layer. That is, the uplink transmission data or the downlink transmission data may be a protocol data unit of a protocol layer in the air interface protocol stack of the wireless cellular network, which is not limited by the present invention.

Optionally, when the radio bearer information is a logical channel identifier, because the logical channel has a mapping relationship with the radio bearer, and the receiving end (for example, when the uplink data is transmitted, the receiving end is The eNB can receive the radio bearer identifier according to the logical channel identifier when the downlink data is transmitted. Taking the PDCP layer as an example, the radio bearer corresponding to the radio bearer identifier corresponds to the PDCP layer or has a mapping relationship with the PDCP layer. Specifically, the radio bearer has a one-to-one correspondence with the PDCP entity of the PDCP layer. That is, each PDCP entity corresponds to one radio bearer, and the number of PDCP entities is determined by the number of established radio bearers.

Further, an IP header, a PDCP header, an extended PDCP header, or a newly added adaptation layer header of a protocol data unit transmitted during a data transmission process between the UE and the UE through the non-cellular access device The SN number is included, where the SN number is used to indicate flow control during data transmission between the cellular access device and the UE for multi-stream aggregation via the non-cellular access device.

Specifically, the non-cellular access device can read the SN number in the IP header and feed back the transmission status of the protocol data unit to the cellular access device. For example, the non-cellular access device determines that the protocol data unit transmission failed based on the discontinuous SN number. Similarly, the UE can also read the PDCP header, the extended PDCP header, or the SN number in the newly added adaptation layer header to feed back the transmission status of the protocol data unit to the cellular access device.

S1102: The data transmission between the cellular access device and the UE is performed by the non-cellular access device through the non-cellular access device by using the cellular IP address of the UE.

An embodiment of the present invention provides a data transmission method, where a cellular access device receives a cellular IP address of a UE that is sent by a UE, where a cellular IP address of the UE is an IP address allocated by the cellular core network to the UE, and the cellular access device and the UE Multi-stream aggregation data transmission between the UE's cellular IP address via the non-cellular access device. Since the cellular access device and the UE establish an IP route through the IP address of the UE, the cellular access device is used as a convergence point and a distribution point for data transmission, and because the quality of the network link of the cellular access device to the wireless local area network The change is sensitive, thus ensuring business continuity, improving the user experience, and avoiding business discontinuities caused by insensitivity to the quality change of the wireless LAN network link when the EPC is used as a convergence point and a distribution point.

Example 12

The embodiment of the invention provides a data transmission method, as shown in FIG. include:

S1201: The UE sends a cellular IP address of the UE to the cellular access device.

It should be added that the UE can also send the UE identity to the cellular access device and use the UE identity to access the non-cellular access device. The UE identifier is a MAC address of the UE in a non-cellular.

After the UE sends the UE's cellular IP address to the cellular access device, the UE sends the UE's cellular IP address and UE identity to the non-cellular access device.

Further, the UE receives the IP address of the cellular access device sent by the cellular access device, and the UE receives the transport layer protocol and/or the port number sent by the cellular access device, where the port number includes the port number of the UE and the cellular access device. Port number, the port number is the port number corresponding to the PDCP protocol or the port number corresponding to the RLC protocol. The transport layer protocol is TCP protocol, UDP protocol, PDCP protocol or RLC protocol.

Further, the protocol data unit transmitted during the data transmission process between the cellular access device and the UE through the non-cellular access device for multi-stream aggregation includes radio bearer information; the radio bearer information is located in the IP header of the protocol data unit, and the PDCP header Medium or extended PDCP header (the extended PDCP header identifier may be indicated by a reserved bit in the source PDCP header) or a new adaptation layer header; the radio bearer information is an ERAB ID, a DRB ID, an LCID, or a radio bearer. Map values. The radio bearer mapping relationship has a certain radio bearer mapping relationship with the ERAB ID, the DRB ID, and the LCID. The radio bearer mapping relationship may be determined by a communication protocol or a cellular access device. For example, the radio bearer mapping relationship is DRB ID1 and ERAB ID1. Or the radio bearer mapping value of LCID1 is 0000, and the radio bearer mapping value of DRB ID2, ERAB ID2, or LCID2 is 0001. If the radio bearer information is a radio bearer mapping value, the UE receives a radio bearer mapping relationship between the radio bearer mapping value sent by the cellular access device and the DRB ID or the LC ID. If the radio bearer information is the ERAB ID, the UE receives the radio bearer mapping relationship between the ERAB ID and the DRB ID or the LC ID sent by the cellular access device.

The IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header further include: the priority information of the logical channel corresponding to the LC ID, and the number corresponding to the DRB ID. The priority information of the radio bearer, the priority information of the radio bearer mapping value corresponding to the radio bearer mapping value, or the priority information of the radio access bearer corresponding to the ERAB ID. The priority information can be QCI. The priority information of the logical channel, the priority information of the radio bearer of the data, the priority information of the radio bearer mapping value, and the priority information of the radio access bearer are consistent.

Further, the UE can associate the UE's cellular IP address with the UE's LTE identity, and the UE's LTE identity may be a CRNTI; the UE can also associate the UE's cellular IP address with the UE's non-cellular MAC address (ie, the UE identity). .

Further, the protocol data unit transmitted during the data transmission process between the cellular access device and the UE through the non-cellular access device for multi-stream aggregation may further include a sequence SN number, where the SN number is used to refer to the cellular access device and Flow control during data transmission between multiple UEs via non-cellular access devices.

Specifically, the UE can read the SN number and feed back the transmission status of the protocol data unit to the cellular access device, for example, determine the failed protocol data unit according to the continuity of the SN number.

S1202: Perform data transmission of the multi-stream convergence between the UE and the cellular access device by using the cellular IP address of the UE via the non-cellular access device.

Example 13

The embodiment of the invention provides a data transmission method. As shown in FIG. 14, the method includes:

S1301. The non-cellular access device receives the UE, or the UE sent by the UE. Cellular IP address and UE identity.

The cellular IP address of the UE is an IP address allocated by the cellular core network to the UE, and the UE identifier is a MAC address of the UE in the non-cellular.

Further, the non-cellular access device maps the QCI parameters in the IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header with the priority of the MAC frame or the priority in the 802.3 frame. . Specifically, if the non-cellular access device is a WLAN AP, that is, the WT is located in the WLAN AP, the WLAN AP maps the QCI parameter to the priority in the MAC frame, and the priority in the MAC frame is the TID (in the downlink data transmission process). If the non-cellular access device is a WLAN AC, that is, the WT is located in the WLAN AC, the WLAN AP maps the QCI to the priority in the 802.3 frame, specifically 802.3. Or the priority in 802.1P is indicated in the TCI (Tag Control Information Field). The mapping relationship between the QCI and the TCI and the TID can be agreed by the communication protocol, and the present invention is not limited.

Similarly, in the uplink data transmission process, the non-cellular access device sets the priority of the QCI parameter and the MAC frame in the IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header or The method of mapping the priorities in the 802.3 frame is similar to the downlink data transmission process, and is not described here.

Specifically, the non-cellular access device reads the SN number and feeds back the transmission status of the protocol data unit to the cellular access device, for example, determines the failed protocol data unit according to the continuity of the SN number.

An embodiment of the present invention provides a data transmission method, where a cellular access device receives a cellular IP address of a UE that is sent by a UE, where a cellular IP address of the UE is an IP address allocated by the cellular core network to the UE, and the cellular access device and the UE Multi-stream aggregation data transmission between the UE's cellular IP address via the non-cellular access device. Since the cellular access device establishes an IP route with the UE through the IP address of the UE, enabling cellular access The device acts as a convergence point and a distribution point for data transmission, and because the cellular access device is sensitive to the quality change of the network link of the wireless local area network, thereby ensuring service continuity, improving the user experience, and avoiding the EPC as a convergence point and a distribution point. The service is not sensitive to the quality change of the network link of the WLAN.

Example 14

An embodiment of the present invention provides a data transmission method, where a cellular access device is an LTE eNB, and a non-cellular access device is a WT located in a WLAN AP, and a PDCP layer is used as an example. In the embodiment of the present invention, multi-stream aggregation is performed. Both the request information and the multi-stream aggregation confirmation information may be sent in the form of a message, which is not limited by the present invention. As shown in Figure 15, the method includes:

S1401: The UE sends the LTE IP address of the UE to the eNB.

Specifically, the LTE IP address of the UE is allocated to the UE by the LTE core network. After receiving the LTE IP address of the UE, the eNB may associate the identifier of the UE in the LTE with the IP address of the UE in the LTE, and the identifier of the UE in the LTE may be a CRNTI.

Specifically, as shown in FIG. 16, if the eNB sends the multi-stream aggregation request information to the UE before the UE sends the LTE IP address of the UE to the eNB, then:

The multi-flow aggregation request information includes a BSSID of the WLAN AP, a Service Set Identifier (SSID) or a HESSID (homogeneous extended SSID), and an IP address of the eNB. Optionally, the multi-stream aggregation request information may further include a transport layer protocol and/or a port number to the UE. The port number includes the port number of the UE and the port number of the eNB. The port number is the port number corresponding to the PDCP protocol or the port number corresponding to the RLC protocol. The transport layer protocol is TCP protocol, UDP protocol, PDCP protocol, or RLC protocol.

It should be noted that, before the eNB sends the multi-flow aggregation request information to the UE, the eNB may configure the UE to measure and report the WLAN, and after receiving the measurement result of the WLAN by the UE, the eNB determines whether it needs to be connected with the UE. The WLAN AP performs data transmission of multi-stream aggregation. Alternatively, the eNB can also obtain the information of the available WLAN APs through the OAM, and determine whether the data transmission between the UE and the UE through the WLAN AP is required according to the load of the WLAN AP.

Generally, the eNB sends the multi-stream aggregation request information to the UE through an RRC message, an air interface message, or a newly defined RRC reconfigration message. The multi-stream aggregation request message may also be other newly defined messages. As long as the message for triggering the UE configuration for LTE WLAN Mulit Stream Aggregation (LTE WLAN multi-stream aggregation) can be achieved.

The UE accesses the WLAN AP according to the received BSSID, SSID or HESSID of the WLAN AP, and accesses the WLAN AP of the specified BSSID, SSID or HESSID.

The multi-stream aggregation acknowledgement information sent by the UE is sent to the eNB. The multi-flow convergence acknowledgement information includes an LTE IP address and a UE identifier of the UE, where the UE identifier is a MAC address of the UE in the WLAN.

Specifically, as shown in FIG. 17, if the eNB sends the multi-stream aggregation request information to the UE after the UE sends the LTE IP address of the UE to the eNB, then:

The UE sends the UE identity to the eNB. The UE identifier is the MAC address of the UE in the WLAN, and the UE sends the UE identifier to the eNB. The LTE IP address of the UE may be sent to the eNB by the same message to the eNB, or may be sent through different messages, and the two steps are not There is a relationship of execution.

The eNB sends the multi-stream aggregation request information to the UE, and the multi-flow aggregation request information includes a BSSID, an SSID, or a HESSID of the WLAN AP, and an IP address of the eNB. Optionally, the multi-stream aggregation request information may further include a transport layer protocol and/or a port number to the UE. The port number includes the port number of the UE and the port number of the eNB. The port number is the port number corresponding to the PDCP protocol or the port number corresponding to the RLC protocol. The transport layer protocol is TCP protocol, UDP protocol, PDCP protocol, or RLC protocol.

Optionally, the UE sends the multi-flow convergence acknowledgement information to the eNB, and the multi-flow convergence acknowledgement information may include the UE identifier. If the UE does not send the UE identifier to the eNB before the UE sends the multi-flow convergence acknowledgement information to the eNB, the UE identifier must be carried in the multi-flow convergence acknowledgement information to the eNB; if the UE sends the multi-flow convergence acknowledgement information to the eNB before the UE sends The UE identifier may be in the multi-flow convergence acknowledgement information. The carrying and sending to the eNB, the multi-flow convergence acknowledgement information may not include the UE identifier; and when the UE sends the UE identifier to the eNB before the UE sends the multi-flow convergence acknowledgement information to the eNB, the step of the UE transmitting the multi-flow convergence acknowledgement information to the eNB is also Optional.

It should be noted that the multi-stream aggregation acknowledgement message may also be other newly defined messages. Regardless of the message used, there is a purpose of confirming that the UE completes the configuration for multi-stream aggregation. The multi-stream aggregation failure information may also be other newly defined messages, as long as the purpose of confirming the UE multi-stream aggregation failure can be achieved.

It should be added that the eNB or the UE also needs to send the UE's cellular IP address and UE identifier to the WLAN AP.

S1402: The eNB and the UE perform multi-stream aggregation data transmission via the WLAN AP through the LTE IP address of the UE.

For example, the process of data transmission by the eNB and the UE through the WLAN IP address of the UE through the WLAN AP is as follows:

In the downlink direction, the eNB adds an IP header to the PDCP protocol data unit that is offloaded to the WLAN AP, or if there is an adaptation protocol layer, the header corresponding to the adaptation layer is added before the IP header is added. In the added IP header, the target address is filled in as the LTE IP address of the UE, and the source address is filled in as the IP address of the eNB. Specifically, the LTE IP address of the UE can find the LTE IP address of the corresponding UE through the CRNTI. The radio bearer information is located in the IP header of the protocol data unit, or in the PDCP header, or in the extended PDCP header (the extended PDCP header identifier can be indicated in the source PDCP header), or the newly added adaptation layer header, the radio bearer The information is a radio access bearer identifier ERAB ID, a data radio bearer identifier DRB, a logical channel identifier LCID, or a radio bearer mapping value.

Subsequently, the eNB transmits the PDCP protocol data unit with the added IP header to layer 1 of the protocol stack of the WLAN AP through layer 2 and layer 1, via layer 1 and layer of the WLAN AP. After the processing, the PDCP protocol data unit with the IP header added is restored, and the WLAN AP adds the LLC header (if there is no LLC header, the WLAN AP does not need to perform this step), and then according to the UE's LTE IP address and UE identifier (UE WLAN MAC) Correspondence relationship of the address), a MAC protocol data unit is generated, and the MAC protocol data unit is transmitted to the UE through the PHY layer.

After receiving the MAC protocol data unit packet, the PHY layer of the UE deletes the MAC header and the LLC header in turn (if the LLC header is not used, the UE does not need to perform this step), and obtains the PDCP protocol data unit to which the IP header is added. Whether the protocol data unit is transmitted from the eNB is determined according to the IP address of the eNB in the IP header. If the protocol data unit is transmitted from the eNB and the bearer information is read at the same time, if the radio bearer information is in the IP header or the adaptation layer header, the radio bearer information is read from the IP header or the adaptation layer header, and the IP header is deleted. Or if there is a new adaptation layer, the header corresponding to the adaptation layer is deleted, and the PDCP protocol data unit is handed over to the PDCP entity corresponding to the bearer. If the radio bearer information is in the PDCP header or the extended PDCP header, the PDCP data packet is directly transferred to the PDCP entity, and the PDCP entity identifies the bearer according to the radio bearer information of the PDCP header and the extended PDCP header, and then delivers the PDCP corresponding to the bearer. Entity; if the eNB has multiple bearers, but only one bearer is offloaded, the eNB needs to inform the UE of the information of the offloaded bearer through the air interface message, and the UE hands over the received shunt data according to the bearer information. The UE processes the PDCP entity corresponding to the bearer.

In the uplink direction, the UE adds an IP header to the PDCP protocol data unit that is offloaded to the WLAN AP, or if there is an adaptation protocol layer, the header corresponding to the adaptation layer is added before the IP header is added. In the add IP header, the target address is filled in as the IP address of the eNB, and the source address is filled in as the LTE IP address of the UE, and the radio bearer information is located in the IP header of the protocol data unit, or in the PDCP header, or in the extended PDCP header ( The extended PDCP header identifier may be indicated in the source PDCP header, or the newly added adaptation protocol layer header, the radio bearer information is a radio access bearer identifier ERAB ID, a data radio bearer identifier DRB, a logical channel identifier LCID, or a radio bearer. Map values.

Subsequently, the UE adds an LLC report to the PDCP protocol data unit to which the IP header is added. Header (if there is no LLC header, the UE does not need to perform this step), generate a MAC protocol data unit, and transmit the MAC protocol data unit to the WLAN AP through the PHY layer.

After receiving the MAC protocol data unit, the PHY layer of the WLAN AP deletes the MAC header and the LLC header in turn (if there is no LLC header, the WLAN AP does not need to perform this step), obtains the PDCP protocol data unit with the UIP header added, and then according to the IP. The IP address of the eNB in the header is processed by layer 2 and layer 1 and then forwarded to layer 1 of the eNB protocol stack. After receiving the protocol data unit, the eNB processes through layer 1 and layer 2, and restores the added IP header. PDCP protocol data unit. The IP address of the eNB is determined by the destination address in the IP header, and the bearer information is read at the same time. If the radio bearer information is in the IP header or the adaptation layer header, the radio bearer information is read from the IP header or the adaptation layer header, and the IP address is deleted. The header, or if there is a new adaptation layer, deletes the header corresponding to the adaptation layer, and passes the PDCP protocol data unit to the PDCP entity corresponding to the bearer. If the radio bearer information is in the PDCP header or the extended PDCP header, the PDCP data packet is directly transferred to the PDCP entity, and the PDCP entity identifies the bearer according to the radio bearer information of the PDCP header and the extended PDCP header, and then delivers the PDCP corresponding to the bearer. entity. It should be noted that if the eNB has multiple bearers but only one bearer is offloaded, the eNB needs to inform the UE of the information of the offloaded bearer through the air interface message, and the UE submits the received shunt data to the UE according to the bearer information. The PDCP entity is hosted for processing.

It should be noted that if there is a transport protocol, a UDP/TCP header is added after the IP header is added, and the rest are similar, and are not described here.

Further, based on the foregoing process, the WLAN AP receives the protocol data unit, and the priority of the QCI parameter and the MAC frame in the IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header or The priority in the 802.3 frame is mapped. Specifically, in the downlink data transmission process, the WLAN AP maps the QCI parameter to the priority in the MAC frame, and the priority in the MAC frame is the indication in the TID (Traffic Identifier); the mapping relationship between the QCI and the TID It can be agreed by a communication protocol, and the invention is not limited.

Similarly, in the uplink data transmission process, the WLAN AP puts the IP header in the PDCP. The method of mapping the QCI parameters in the header, the extended PDCP header, or the new adaptation layer header with the priority of the MAC frame or the priority in the 802.3 frame is similar to the downlink data transmission process, and is not described here. .

Example 15

An embodiment of the present invention provides a cellular access device, as shown in FIG. 18, including:

The receiving module 10 is configured to receive a cellular network interconnection protocol IP address of the UE sent by the user equipment UE, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE.

The processing module 11 is configured to perform data transmission between the UE and the UE through the non-cellular access device through the cellular IP address of the UE.

Further, the receiving module 10 is further configured to receive the UE identifier sent by the UE, where the UE identifier is a media access control MAC address of the UE in the non-cellular.

Further, as shown in FIG. 19, the cellular access device further includes:

The sending module 12 is configured to send the cellular IP address of the UE and the UE identifier to the non-cellular access device after the receiving module 10 receives the cellular IP address of the UE sent by the UE.

Further, the sending module 12 is further configured to send an IP address of the cellular access device to the UE.

Further, the sending module 12 is further configured to send a transport layer protocol and/or a port number to the UE, where the port number includes a port number of the UE and a port number of the cellular access device, where the port number is corresponding to the packet data channel PDCP protocol. Port number or radio link control layer The port number corresponding to the RLC protocol. The transport layer protocol is the Transmission Control Protocol TCP protocol, the User Datagram Protocol UDP protocol, the PDCP protocol, or the RLC protocol.

Further, the protocol data unit transmitted during the data transmission process between the cellular access device and the UE through the non-cellular access device for multi-stream aggregation includes radio bearer information; the radio bearer information is located in the IP header of the protocol data unit, and the PDCP header In the medium or extended PDCP header, or in the newly added adaptation layer header; the radio bearer information is a radio access bearer identifier ERAB ID, a data radio bearer identifier DRB ID, a logical channel identifier LC ID, or a radio bearer mapping value.

The sending module 12 is further configured to: if the radio bearer information is a radio bearer mapping value, send a radio bearer mapping value and a radio bearer mapping relationship of the DRB ID or the LC ID to the UE; if the radio bearer information is an ERAB ID, send the ERAB ID and the DRB ID Or the radio bearer mapping of the LCID is related to the UE.

Further, the IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header further includes: priority information of the logical channel corresponding to the LC ID, priority information of the data radio bearer corresponding to the DRB ID, and radio bearer mapping. The priority information of the radio bearer mapping value corresponding to the value, or the priority information of the radio access bearer corresponding to the ERAB ID.

An embodiment of the present invention provides a cellular access device, including: a receiving module, configured to receive a cellular network interconnection protocol IP address of a UE sent by a user equipment UE, where a cellular IP address of the UE is an IP allocated by the cellular core network to the UE And a processing module, configured to perform data transmission between the UE and the UE through the non-cellular access device by using the cellular IP address of the UE. Since the cellular access device and the UE establish an IP route through the IP address of the UE, the cellular access device is used as a convergence point and a distribution point for data transmission, and because the quality of the network link of the cellular access device to the wireless local area network The change is sensitive, thus ensuring business continuity, improving the user experience, and avoiding business discontinuities caused by insensitivity to the quality change of the wireless LAN network link when the EPC is used as a convergence point and a distribution point.

Example 16

An embodiment of the present invention provides a UE, as shown in FIG. 20, including:

The sending module 20 is configured to send a cellular network interconnection protocol IP address of the user equipment UE to the cellular access device, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE.

The processing module 21 is configured to perform data transmission between the cellular access device and the multi-stream aggregation via the non-cellular access device by using the cellular IP address of the UE.

Further, the sending module 20 is further configured to send the UE identifier to the cellular access device, where the UE identifier is a media access control MAC address of the UE in the non-cellular.

The processing module 21 is further configured to access the non-cellular access device by using the UE identifier.

Further, the sending module 20 is further configured to send the cellular IP address of the UE and the UE identifier to the non-cellular access device after the sending module sends the cellular IP address of the UE to the cellular access device.

Further, as shown in FIG. 21, the UE further includes:

The receiving module 22 is configured to receive an IP address of the cellular access device sent by the cellular access device.

Further, the receiving module 22 is further configured to receive a transport layer protocol and/or a port number sent by the cellular access device, where the port number includes a port number of the UE and a port number of the cellular access device, and the port number is a packet data channel. The port number corresponding to the PDCP protocol or the port number corresponding to the radio link control layer RLC protocol. The transport layer protocol is the Transmission Control Protocol TCP protocol, the User Datagram Protocol UDP protocol, the PDCP protocol, or the RLC protocol.

The receiving module 22 is further configured to: if the radio bearer information is a radio bearer mapping value, receive a radio bearer mapping value sent by the cellular access device and a radio bearer mapping relationship between the DRB ID or the LC ID; if the radio bearer information is an ERAB ID, the receiving cell Access device The radio bearer mapping relationship between the ERAB ID and the DRB ID or LC ID.

An embodiment of the present invention provides a UE, including: a sending module, configured to send a cellular network interconnection protocol IP address of a user equipment UE to a cellular access device, where a cellular IP address of the UE is an IP address allocated by the cellular core network to the UE. And a processing module, configured to perform data transmission between the cellular access device and the multi-stream aggregation through the non-cellular access device by using the cellular IP address of the UE. Since the cellular access device and the UE establish an IP route through the IP address of the UE, the cellular access device is used as a convergence point and a distribution point for data transmission, and because the quality of the network link of the cellular access device to the wireless local area network The change is sensitive, thus ensuring business continuity, improving the user experience, and avoiding business discontinuities caused by insensitivity to the quality change of the wireless LAN network link when the EPC is used as a convergence point and a distribution point.

Example 17

An embodiment of the present invention provides a non-cellular access device, as shown in FIG. 22, including:

The receiving module 30 is configured to receive a cellular IP address and a UE identifier of the UE sent by the cellular access device or the user equipment UE, where the cellular IP address of the UE is a network interconnection protocol IP address allocated by the cellular core network to the UE, and the UE identifier is The UE controls the MAC address on the non-cellular media access.

An embodiment of the present invention provides a non-cellular access device, including: a receiving module, configured to receive a cellular IP address and a UE identifier of a UE sent by a cellular access device or a user equipment UE, where a cellular IP address of the UE is a cellular core The network interconnection protocol IP address assigned by the network to the UE, and the UE identifier is the media access control MAC address of the UE in the non-cellular. Since the cellular access device and the UE establish an IP route through the IP address of the UE, the cellular access device is used as a convergence point and a distribution point for data transmission, and because the quality of the network link of the cellular access device to the wireless local area network Change sensitive, thus ensuring the industry The continuity of the service improves the user experience and avoids the discontinuity of the service caused by the quality change of the network link of the wireless local area network when the EPC is used as the convergence point and the distribution point.

Example 18

An embodiment of the present invention provides a cellular access device, as shown in FIG. 23, including:

The receiver 40 is configured to receive a cellular network interconnection protocol IP address of the UE sent by the user equipment UE, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE.

The processor 41 is configured to perform data transmission between the UE and the UE through the non-cellular access device by using the cellular IP address of the UE.

Further, the receiver 40 is further configured to receive the UE identifier sent by the UE, where the UE identifier is a media access control MAC address of the UE in the non-cellular.

Further, as shown in FIG. 24, the cellular access device further includes:

The transmitter 42 is configured to send the cellular IP address of the UE and the UE identifier to the non-cellular access device after the receiver receives the cellular IP address of the UE sent by the UE.

Further, the transmitter 42 is further configured to send an IP address of the cellular access device to the UE.

Further, the transmitter 42 is further configured to send a transport layer protocol and/or a port number to the UE, where the port number includes a port number of the UE and a port number of the cellular access device, where the port number is corresponding to the packet data channel PDCP protocol. The port number or the port number corresponding to the radio link control layer RLC protocol. The transport layer protocol is the Transmission Control Protocol TCP protocol, the User Datagram Protocol UDP protocol, the PDCP protocol, or the RLC protocol.

The transmitter 42 is further configured to: if the radio bearer information is a radio bearer mapping value, send a radio bearer mapping value and a radio bearer mapping relationship of the DRB ID or the LC ID to the UE; The radio bearer information is an ERAB ID, and the radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID is transmitted to the UE.

An embodiment of the present invention provides a cellular access device, including: a receiver, configured to receive a cellular network interconnection protocol IP address of a UE sent by a user equipment UE, where a cellular IP address of the UE is an IP allocated by the cellular core network to the UE An address, a processor, configured to perform multi-stream aggregation data transmission with the UE via the UE's cellular IP address via the non-cellular access device. Since the cellular access device and the UE establish an IP route through the IP address of the UE, the cellular access device is used as a convergence point and a distribution point for data transmission, and because the quality of the network link of the cellular access device to the wireless local area network The change is sensitive, thus ensuring business continuity, improving the user experience, and avoiding business discontinuities caused by insensitivity to the quality change of the wireless LAN network link when the EPC is used as a convergence point and a distribution point.

Example 19

An embodiment of the present invention provides a UE, as shown in FIG. 25, including:

The transmitter 50 is configured to send a cellular network interconnection protocol IP address of the user equipment UE to the cellular access device, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE.

The processor 51 is configured to perform data transmission between the cellular access device and the multi-stream aggregation via the non-cellular access device by using the cellular IP address of the UE.

Further, the transmitter 50 is further configured to send the UE identifier to the cellular access device, where the UE identifier is a media access control MAC address of the UE in the non-cellular.

The processor 51 is further configured to access the non-cellular access device by using the UE identifier.

Further, the transmitter 50 is further configured to send the UE's cellular IP address and the UE identifier to the non-cellular after the transmitter sends the UE's cellular IP address to the cellular access device. Access device.

Further, as shown in FIG. 26, the UE further includes:

The receiver 52 is configured to receive an IP address of the cellular access device sent by the cellular access device.

Further, the receiver 52 is further configured to receive a transport layer protocol and/or a port number sent by the cellular access device, where the port number includes a port number of the UE and a port number of the cellular access device, and the port number is a packet data channel. The port number corresponding to the PDCP protocol or the port number corresponding to the radio link control layer RLC protocol. The transport layer protocol is the Transmission Control Protocol TCP protocol, the User Datagram Protocol UDP protocol, the PDCP protocol, or the RLC protocol.

The receiver 52 is further configured to: if the radio bearer information is a radio bearer mapping value, receive a radio bearer mapping value sent by the cellular access device and a radio bearer mapping relationship between the DRB ID or the LC ID; if the radio bearer information is an ERAB ID, the receiving cell The mapping between the ERAB ID sent by the access device and the radio bearer of the DRB ID or LC ID.

An embodiment of the present invention provides a UE, including: a transmitter, configured to send a cellular network interconnection protocol IP address of a user equipment UE to a cellular access device, where a cellular IP address of the UE is an IP address allocated by the cellular core network to the UE. a processor for performing multi-stream aggregation data transmission with the cellular access device via the UE's cellular IP address via the non-cellular access device. Since the cellular access device and the UE are built by the IP address of the UE IP routing is established to make the cellular access device serve as a convergence point and a distribution point for data transmission, and since the cellular access device is sensitive to the quality change of the wireless LAN network link, thereby ensuring service continuity and improving user experience, When the EPC is used as a convergence point and a distribution point, the service discontinuity caused by the quality change of the network link of the wireless local area network is not continuous.

Example 20

An embodiment of the present invention provides a non-cellular access device, as shown in FIG. 27, including:

The receiver 60 is configured to receive a cellular IP address and a UE identifier of the UE that are sent by the cellular access device or the user equipment UE, where the cellular IP address of the UE is a network interconnection protocol IP address allocated by the cellular core network to the UE, and the UE identifier is The UE controls the MAC address on the non-cellular media access.

An embodiment of the present invention provides a non-cellular access device, including: a receiver, configured to receive a cellular IP address and a UE identifier of a UE sent by a cellular access device or a user equipment UE, where a cellular IP address of the UE is a cellular core The network interconnection protocol IP address assigned by the network to the UE, and the UE identifier is the media access control MAC address of the UE in the non-cellular. Since the cellular access device and the UE establish an IP route through the IP address of the UE, the cellular access device is used as a convergence point and a distribution point for data transmission, and because the quality of the network link of the cellular access device to the wireless local area network The change is sensitive, thus ensuring business continuity, improving the user experience, and avoiding business discontinuities caused by insensitivity to the quality change of the wireless LAN network link when the EPC is used as a convergence point and a distribution point.

Example 21

The embodiment of the present invention provides a data transmission system, including the cellular access device according to any one of the embodiments 15, the UE of any one of the embodiments 16, and the cellular access device of the embodiment 17. Since the cellular access device and the UE establish an IP route through the IP address of the UE, the cellular access device is used as a convergence point and a distribution point for data transmission, and because the quality of the network link of the cellular access device to the wireless local area network The change is sensitive, thus ensuring business continuity, improving the user experience, and avoiding business discontinuities caused by insensitivity to the quality change of the wireless LAN network link when the EPC is used as a convergence point and a distribution point.

Example 22

The embodiment of the present invention provides a data transmission system, including the cellular access device according to any one of the embodiments 18, the UE of any one of the embodiments 19, and the cellular access device of the embodiment 20. Since the cellular access device and the UE establish an IP route through the IP address of the UE, the cellular access device is used as a convergence point and a distribution point for data transmission, and because the quality of the network link of the cellular access device to the wireless local area network The change is sensitive, thus ensuring business continuity, improving the user experience, and avoiding business discontinuities caused by insensitivity to the quality change of the wireless LAN network link when the EPC is used as a convergence point and a distribution point.

It will be clearly understood by those skilled in the art 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. The internal structure of the device is divided into different functional modules to perform all or part of the functions described above. For the specific working process of the system, the device and the unit described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided by the present application, 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 modules or units is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combinations 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 separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to 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 various embodiments of the present invention can be integrated in one place In the unit, it is also possible that each unit physically exists alone, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present invention. 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. .

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

A data transmission method, comprising:

The cellular access device receives the cellular network interconnection protocol IP address of the UE sent by the user equipment UE, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE;

The multi-stream aggregation data transmission between the cellular access device and the UE via the non-cellular access device by the cellular IP address of the UE.
The data transmission method according to claim 1, wherein the method further comprises:

The cellular access device receives the UE identity sent by the UE, where the UE identity is a media access control MAC address of the UE in the non-cellular.
The data transmission method according to claim 1 or 2, wherein after the cellular access device receives the cellular IP address of the UE sent by the UE, the method further includes:

The cellular access device transmits a cellular IP address of the UE and the UE identifier to the non-cellular access device.
The data transmission method according to any one of claims 1 to 3, wherein the method further comprises:

The cellular access device sends an IP address of the cellular access device to the UE.
The data transmission method according to any one of claims 1 to 4, wherein the method further comprises:

The cellular access device sends a transport layer protocol and/or a port number to the UE, where the port number includes a port number of the UE and a port number of the cellular access device, where the port number is a packet The port number corresponding to the data channel PDCP protocol or the port number corresponding to the radio link control layer RLC protocol, and the transport layer protocol is a transmission control protocol TCP protocol, a user datagram protocol UDP protocol, the PDCP protocol, or the RLC protocol.
The data transmission method according to any one of claims 1 to 5, wherein the cellular access device and the UE are connected to each other via a non-cellular access device. The protocol data unit transmitted during the data transmission process of the stream aggregation includes radio bearer information; the radio bearer information is located in an IP header of the protocol data unit, in a PDCP header, in an extended PDCP header, or a new adaptation layer In the header, the radio bearer information is a radio access bearer identifier ERAB ID, a data radio bearer identifier DRB ID, a logical channel identifier LC ID, or a radio bearer mapping value;

And if the radio bearer information is the radio bearer mapping value, the method further includes:

Transmitting, by the cellular access device, the radio bearer mapping value and the radio bearer mapping relationship of the DRB ID or the LC ID to the UE;

If the radio bearer information is the ERAB ID, the method further includes:

The cellular access device sends a radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID to the UE.
The data transmission method according to claim 6, wherein the IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header further includes: the LC ID corresponding to The priority information of the logical channel, the priority information of the data radio bearer corresponding to the DRBID, the priority information of the radio bearer mapping value corresponding to the radio bearer mapping value, or the priority of the radio access bearer corresponding to the ERAB ID Level information.
A data transmission method, comprising:

The user equipment UE sends the cellular network interconnection protocol IP address of the UE to the cellular access device, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE;

The multi-stream aggregation data transmission between the UE and the cellular access device via the cellular IP address of the UE via the non-cellular access device.
The data transmission method according to claim 8, wherein the method further comprises:

Transmitting, by the UE, a UE identifier to the cellular access device, where the UE identifier is a media access control MAC address of the UE in the non-cellular;

The UE accesses the non-cellular access device by using the UE identifier.
A data transmission method according to claim 8 or 9, wherein After the UE sends the cellular IP address of the UE to the cellular access device, the method further includes:

The UE sends a cellular IP address of the UE and the UE identifier to the non-cellular access device.
The data transmission method according to any one of claims 8 to 10, wherein the method further comprises:

The UE receives an IP address of the cellular access device that is sent by the cellular access device.
The data transmission method according to any one of claims 8 to 11, wherein the method further comprises:

Receiving, by the UE, a transport layer protocol and/or a port number sent by the cellular access device, where the port number includes a port number of the UE and a port number of the cellular access device, where the port number is a port number corresponding to the packet data channel PDCP protocol or a port number corresponding to the radio link control layer RLC protocol, where the transport layer protocol is a transmission control protocol TCP protocol, a user datagram protocol UDP protocol, the PDCP protocol, or the RLC protocol. .
The data transmission method according to any one of claims 8 to 12, wherein the cellular access device and the UE transmit the data during the multi-stream aggregation data transmission via the non-cellular access device The protocol data unit includes radio bearer information; the radio bearer information is located in an IP header of the protocol data unit, in a PDCP header, in an extended PDCP header, or in a newly added adaptation layer header; a radio access bearer identifier ERAB ID, a data radio bearer identifier DRB ID, a logical channel identifier LC ID, or a radio bearer mapping value;

And if the radio bearer information is the radio bearer mapping value, the method further includes:

Receiving, by the UE, the mapping relationship between the radio bearer mapping value sent by the cellular access device and the radio bearer of the DRB ID or the LC ID;

If the radio bearer information is the ERAB ID, the method further includes:

The UE receives a radio bearer mapping relationship between the ERAB ID and the DRB ID or the LC ID sent by the cellular access device.
The data transmission method according to claim 13, wherein the IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header further includes: the LC ID corresponding to The priority information of the logical channel, the priority information of the data radio bearer corresponding to the DRB ID, the priority information of the radio bearer mapping value corresponding to the radio bearer mapping value, or the radio access bearer corresponding to the ERAB ID Priority information.
A data transmission method, comprising:

The non-cellular access device receives the cellular network interconnection protocol IP address and the UE identifier of the UE that is sent by the cellular access device or the user equipment UE, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE, The UE identifier is a media access control MAC address of the UE in the non-cellular.
A cellular access device, comprising:

a receiving module, configured to receive a cellular network interconnection protocol IP address of the UE sent by the user equipment UE, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE;

And a processing module, configured to perform data transmission between the UE and the UE by using a cellular IP address of the UE by using a non-cellular access device for multi-stream aggregation.
The cellular access device according to claim 16, wherein the receiving module is further configured to receive a UE identifier sent by the UE, where the UE identifier is that the UE is in the non-cellular media Access control MAC address.
The cellular access device according to claim 16 or 17, wherein the cellular access device further comprises:

And a sending module, configured to send, after the receiving module receives the cellular IP address of the UE sent by the UE, the cellular IP address of the UE and the UE identifier to the non-cellular access device.
The cellular access device according to any one of claims 16 to 18, wherein the sending module is further configured to send an IP address of the cellular access device to the UE.
A cellular access device according to any one of claims 16-19, The sending module is further configured to send a transport layer protocol and/or a port number to the UE, where the port number includes a port number of the UE and a port number of the cellular access device, where The port number is a port number corresponding to the packet data channel PDCP protocol or a port number corresponding to the radio link control layer RLC protocol, and the transport layer protocol is a transmission control protocol TCP protocol, a user datagram protocol UDP protocol, the PDCP protocol, or The RLC protocol.
The cellular access device according to any one of claims 16 to 20, wherein the cellular access device and the UE transmit in a data transmission process of multi-stream aggregation via a non-cellular access device The protocol data unit includes radio bearer information; the radio bearer information is located in an IP header of the protocol data unit, in a PDCP header, in an extended PDCP header, or in a newly added adaptation layer header; the radio bearer information Identifying an ERAB ID, a data radio bearer identifier DRB ID, a logical channel identifier LC ID, or a radio bearer mapping value for the radio access bearer;

The sending module is further configured to: if the radio bearer information is the radio bearer mapping value, send a mapping relationship between the radio bearer mapping value and the radio bearer of the DRB ID or the LC ID to the UE; The radio bearer information is the ERAB ID, and the radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID is sent to the UE.
The cellular access device according to claim 21, wherein the IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header further includes: the LC ID corresponding to The priority information of the logical channel, the priority information of the data radio bearer corresponding to the DRB ID, the priority information of the radio bearer mapping value corresponding to the radio bearer mapping value, or the radio access bearer corresponding to the ERAB ID Priority information.
A UE, comprising:

a sending module, configured to send a cellular network interconnection protocol IP address of the user equipment UE to the cellular access device, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE;

a processing module, configured to communicate with the cellular access device by using a cellular IP of the UE The address transmits data for multi-stream aggregation via a non-cellular access device.
The UE according to claim 23, characterized in that

The sending module is further configured to send a UE identifier to the cellular access device, where the UE identifier is a media access control MAC address of the UE in the non-cellular;

The processing module is further configured to access the non-cellular access device by using the UE identifier.
The UE according to claim 23 or 24, wherein the sending module is further configured to: after the sending module sends the cellular IP address of the UE to the cellular access device, send the cellular IP address of the UE and The UE is identified to the non-cellular access device.
The UE according to any one of claims 23-25, wherein the UE further comprises:

And a receiving module, configured to receive an IP address of the cellular access device that is sent by the cellular access device.
The UE according to any one of claims 23 to 26, wherein the receiving module is further configured to receive a transport layer protocol and/or a port number sent by the cellular access device, where the port is The port number of the UE and the port number of the cellular access device, the port number being a port number corresponding to a packet data channel PDCP protocol or a port number corresponding to a radio link control layer RLC protocol, the transport layer The protocol is a Transmission Control Protocol TCP protocol, a User Datagram Protocol UDP protocol, the PDCP protocol, or the RLC protocol.
The UE according to any one of claims 23 to 27, characterized in that the protocol data transmitted during the data transmission between the cellular access device and the UE via the non-cellular access device for multi-stream aggregation The unit includes radio bearer information; the radio bearer information is located in an IP header of the protocol data unit, in a PDCP header, in an extended PDCP header, or in a newly added adaptation layer header; the radio bearer information is a wireless connection. The bearer identifier ERAB ID, the data radio bearer identifier DRB ID, the logical channel identifier LC ID, or the radio bearer mapping value;

The receiving module is further configured to: if the radio bearer information is the radio bearer mapping And receiving a radio bearer mapping relationship between the radio bearer mapping value sent by the cellular access device and the DRBID or the LC ID; if the radio bearer information is the ERAB ID, receiving the cellular access The radio bearer mapping relationship between the ERAB ID sent by the device and the DRB ID or the LC ID.
The UE according to claim 28, wherein the IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header further includes: a logical channel corresponding to the LC ID The priority information, the priority information of the data radio bearer corresponding to the DRB ID, the priority information of the radio bearer mapping value corresponding to the radio bearer mapping value, or the priority of the radio access bearer corresponding to the ERAB ID information.
A non-cellular access device, comprising:

a receiving module, configured to receive a cellular IP address and a UE identifier of a UE that is sent by a cellular access device or a user equipment UE, where the cellular IP address of the UE is a network interconnection protocol IP address allocated by the cellular core network to the UE, The UE identifier is a media access control MAC address of the UE in the non-cellular.
A cellular access device, comprising:

a receiver, configured to receive a cellular network interconnection protocol IP address of the UE sent by the user equipment UE, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE;

And a processor, configured to perform multi-stream aggregation data transmission with the UE by using a cellular IP address of the UE by using a non-cellular access device.
The cellular access device according to claim 31, wherein the receiver is further configured to receive a UE identifier sent by the UE, where the UE identifier is that the UE is in the non-cellular media Access control MAC address.
The cellular access device according to claim 31 or 32, wherein the cellular access device further comprises:

And a transmitter, configured to send, after the receiver receives the cellular IP address of the UE sent by the UE, the cellular IP address of the UE and the UE identifier to the non-cellular access device.
The cellular access device according to any one of claims 31 to 33, wherein the transmitter is further configured to send an IP address of the cellular access device to the UE.
The cellular access device according to any one of claims 31 to 34, wherein the transmitter is further configured to send a transport layer protocol and/or a port number to the UE, where the port number And including a port number of the UE and a port number of the cellular access device, where the port number is a port number corresponding to a packet data channel PDCP protocol or a port number corresponding to a radio link control layer RLC protocol, the transport layer protocol The transmission control protocol TCP protocol, the User Datagram Protocol UDP protocol, the PDCP protocol, or the RLC protocol.
The cellular access device according to any one of claims 31 to 35, wherein the cellular access device and the UE transmit in a data transmission process of multi-stream aggregation via the non-cellular access device The protocol data unit includes radio bearer information; the radio bearer information is located in an IP header of the protocol data unit, in a PDCP header, in an extended PDCP header, or in a newly added adaptation layer header; the radio bearer information Identifying an ERAB ID, a data radio bearer identifier DRB ID, a logical channel identifier LC ID, or a radio bearer mapping value for the radio access bearer;

The transmitter is further configured to: if the radio bearer information is the radio bearer mapping value, send a mapping relationship between the radio bearer mapping value and the radio bearer of the DRB ID or the LC ID to the UE; The radio bearer information is the ERAB ID, and the radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID is sent to the UE.
The cellular access device according to claim 36, wherein the IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header further includes: the LC ID corresponding to The priority information of the logical channel, the priority information of the data radio bearer corresponding to the DRB ID, the priority information of the radio bearer mapping value corresponding to the radio bearer mapping value, or the radio access bearer corresponding to the ERAB ID Priority information.
A UE, comprising:

a transmitter, configured to send a cellular network interconnection protocol IP address of the user equipment UE to the cellular access device, where the cellular IP address of the UE is an IP address allocated by the cellular core network to the UE;

And a processor, configured to perform data transmission between the cellular access device and the multi-stream aggregation via the non-cellular access device by using a cellular IP address of the UE.
The UE of claim 38, wherein

The transmitter is further configured to send a UE identifier to the cellular access device, where the UE identifier is a media access control MAC address of the UE in the non-cellular;

The processor is further configured to access the non-cellular access device by using the UE identifier.
The UE according to claim 38 or 39, wherein the transmitter is further configured to: after the transmitter sends the cellular IP address of the UE to the cellular access device, send the cellular IP address of the UE and The UE is identified to the non-cellular access device.
The UE according to any one of claims 38 to 40, wherein the UE further comprises:

And a receiver, configured to receive an IP address of the cellular access device that is sent by the cellular access device.
The UE according to any one of claims 38 to 41, wherein the receiver is further configured to receive a transport layer protocol and/or a port number sent by the cellular access device, where the port The port number of the UE and the port number of the cellular access device, the port number being a port number corresponding to a packet data channel PDCP protocol or a port number corresponding to a radio link control layer RLC protocol, the transport layer The protocol is a Transmission Control Protocol TCP protocol, a User Datagram Protocol UDP protocol, the PDCP protocol, or the RLC protocol.
The UE according to any one of claims 38-42, wherein protocol data transmitted during data transmission between the cellular access device and the UE by multi-stream aggregation via a non-cellular access device The unit includes radio bearer information; the radio bearer information is located in an IP header of the protocol data unit, in a PDCP header, in an extended PDCP header, or in a newly added adaptation layer header; the radio bearer information is a wireless connection. Incoming bearer identifier ERAB ID, data radio bearer ID DRB ID, logical channel identifier LC ID or radio bearer mapping value;

The receiver is further configured to: if the radio bearer information is the radio bearer mapping value, receive the radio bearer mapping value sent by the cellular access device, and the radio bearer mapping of the DRBID or the LC ID If the radio bearer information is the ERAB ID, the radio bearer mapping relationship between the ERAB ID sent by the cellular access device and the DRB ID or the LC ID is received.
The UE according to claim 43, wherein the IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header further includes: a logical channel corresponding to the LC ID The priority information, the priority information of the data radio bearer corresponding to the DRB ID, the priority information of the radio bearer mapping value corresponding to the radio bearer mapping value, or the priority of the radio access bearer corresponding to the ERAB ID information.
A non-cellular access device, comprising:

a receiver, configured to receive a cellular IP address and a UE identifier of the UE sent by the UE or the user equipment UE, where the cellular IP address of the UE is a network interconnection protocol IP address allocated by the cellular core network to the UE, The UE identifier is a media access control MAC address of the UE in the non-cellular.
A data transmission system, comprising: the cellular access device according to any one of claims 16-22, the UE according to any one of claims 23-29, and the method of claim 30 Non-cellular access device.
A data transmission system, comprising the cellular access device of any one of claims 31-37, the UE of any one of claims 38-44, and the method of claim 45 Non-cellular access device.