CN106688270A

CN106688270A - Data transmission method, apparatus and system

Info

Publication number: CN106688270A
Application number: CN201580044406.2A
Authority: CN
Inventors: 杨利; 罗海燕; 石小丽; 王君
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-03-27
Filing date: 2015-03-27
Publication date: 2017-05-17
Also published as: WO2016154828A1

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

With the popularization of intelligent mobile terminals and the rapid development of mobile applications, the occasions of using mobile data by users are greatly increased, so that the existing network is more and more difficult to meet the requirement of mobile data traffic increase. Generally, a wireless cellular network has the advantages of wide coverage area, support of high-speed movement and the like, but has the disadvantages of low data rate, high price, large transmission power and the like; while WLAN (Wireless Local Area Networks) has the advantages of high data rate, low price, low transmission power, etc., but has the disadvantages of small coverage Area, etc.

In order to meet the demand of mobile data traffic increase, the prior art integrates a wireless cellular network technology and a WLAN technology, and uses the WLAN to shunt the data traffic of a wireless cellular communication system, thereby improving user experience and realizing efficient and low-cost communication. A known method for merging the wireless cellular network technology and the WLAN technology with each other is: a UE (User Equipment) accesses an EPC (Evolved Packet Core) through a base station, and establishes a PDN (Packet Data Network ) connection through a certain PDN-GW (Packet Data Network-Gateway). Then, the UE accesses the EPC through a TWAN (Trusted Wireless Local Area Network Access Network), and the TWAN can select a certain PDN-GW to create a PDN connection, thereby implementing mutual fusion of a Wireless cellular Network technology and a WLAN technology, and implementing a WLAN offloading technology.

However, in the prior art, the data traffic of the WLAN offload wireless cellular communication system is determined by the UE according to a pre-configured policy or a policy obtained from an ANDSF (Access Network Discovery and Selection Function) server, and the UE autonomously selects the WLAN Network for Access and performs multiflow aggregated data transmission with the wireless cellular Network, but the UE cannot determine the service quality of the traffic offloaded to the WLAN Network, so that the service quality of the wireless cellular Network cannot be guaranteed.

Disclosure of 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 purpose, the embodiment of the invention adopts the following technical scheme:

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

the method comprises the steps that cellular access equipment receives a cellular network Interconnection Protocol (IP) address of User Equipment (UE) sent by the UE, wherein the cellular IP address of the UE is an IP address distributed to the UE by a cellular core network;

and performing multi-stream converged data transmission between the cellular access equipment and the UE through a non-cellular access equipment through a cellular IP address of the UE.

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

and the cellular access equipment receives a UE identifier sent by the UE, wherein the UE identifier is a Media Access Control (MAC) address of the UE in the non-cellular area.

In a second possible implementation manner, with reference to the first aspect or the first possible implementation manner, after the cellular access device receives a cellular IP address of the UE sent by the UE, the method further includes:

and the cellular access equipment sends the cellular IP address of the UE and the UE identification to the non-cellular access equipment.

In a third possible implementation manner, with reference to the first aspect, the first possible implementation manner, or the second possible implementation manner, the method further includes:

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

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

the cellular access equipment sends a transport layer protocol and/or a port number to the UE, wherein the port number comprises the port number of the UE and the port number of the cellular access equipment, 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, 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 manner, with reference to the first aspect or the first to the fourth possible implementation manners, a protocol data unit transmitted between the cellular access device and the UE in a data transmission process of multiflow aggregation via a non-cellular access device includes radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header, or a newly added adaptation layer header of the protocol data unit; 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;

if the rb information is the rb mapping value, the method further includes:

the cellular access equipment sends the radio bearer mapping relation between the radio bearer mapping value and the DRB ID or the LC ID to the UE;

if the radio bearer information is the ERAB ID, the method further comprises:

and the cellular access equipment sends the radio bearer mapping relation between the ERAB ID and the DRB ID or the LCID to the UE.

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

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

user Equipment (UE) sends a cellular network Interconnection Protocol (IP) address of the UE to cellular access equipment, wherein the cellular IP address of the UE is an IP address distributed to the UE by a cellular core network;

and performing multi-stream converged data transmission between the UE and the cellular access equipment through a non-cellular access equipment through a cellular IP address of the UE.

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

the UE sends a UE identification to the cellular access equipment, wherein the UE identification is a Media Access Control (MAC) address of the UE in the non-cellular;

the UE accesses the non-cellular access device using the UE identity.

In a second possible implementation manner, with reference to 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:

and the UE sends the cellular IP address of the UE and the UE identification to the non-cellular access equipment.

In a third possible implementation manner, with reference to the second aspect, the first possible implementation manner, or the second possible implementation manner, the method further includes:

and the UE receives the IP address of the cellular access equipment sent by the cellular access equipment.

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

the UE receives a transport layer protocol and/or a port number sent by the cellular access equipment, wherein the port number comprises the port number of the UE and the port number of the cellular access equipment, 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, 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 manner, with reference to the second aspect or the first to the fourth possible implementation manners, a protocol data unit transmitted in a data transmission process of multiflow aggregation performed by a non-cellular access device between the cellular access device and the UE includes radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header, or a newly added adaptation layer header of the protocol data unit; 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;

if the rb information is the rb mapping value, the method further includes:

the UE receives a radio bearer mapping relationship between the radio bearer mapping value and the DRB ID or the LC ID sent by the cellular access equipment;

if the radio bearer information is the ERAB ID, the method further comprises:

and the UE receives the radio bearer mapping relation between the ERAB ID and the DRB ID or the LC ID sent by the cellular access equipment.

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

the method comprises the steps that non-cellular access equipment receives a cellular network Interconnection Protocol (IP) address and a User Equipment (UE) identification of the UE, wherein the cellular IP address of the UE is an IP address distributed to the UE by a cellular core network, and the UE identification is a Media Access Control (MAC) address of the UE in the non-cellular access equipment.

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

the system comprises a receiving module, a sending module and a receiving module, wherein the receiving module is used for receiving a cellular network Interconnection Protocol (IP) address of User Equipment (UE) sent by the UE, and the cellular IP address of the UE is an IP address distributed to the UE by a cellular core network;

a processing module, configured to perform multi-stream aggregated data transmission with the UE via a non-cellular access device through a cellular IP address of the UE.

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

In a second possible implementation manner, with reference to the fourth aspect or the first possible implementation manner, the cellular access device further includes:

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

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

In a fourth possible implementation manner, with reference to the fourth aspect or the first to the third possible implementation manners, 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 the port number of the UE and the port number of the cellular access device, 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, 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 manner, with reference to the fourth aspect or the first to the fourth possible implementation manners, a protocol data unit transmitted in a data transmission process of multi-stream convergence between the cellular access device and the UE via a non-cellular access device includes radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header, or a newly added adaptation layer header of the protocol data unit; 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 send the radio bearer mapping relationship between the radio bearer mapping value and the DRB ID or the LC ID to the UE if the radio bearer information is the radio bearer mapping value; and if the radio bearer information is the ERAB ID, sending the radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID to the UE.

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

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

and the processing module is used for carrying out multi-stream converged data transmission between the cellular access equipment and the non-cellular access equipment through the cellular IP address of the UE.

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

the sending module is further configured to send a UE identity to the cellular access device, where the UE identity is a MAC address of the UE in the non-cellular system:

the processing module is further configured to access the non-cellular access device using the UE identity.

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

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

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

In a fourth possible implementation manner, with reference to the fifth aspect or the first to the third possible implementation manners, 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 number includes the port number of the UE and the port number of the cellular access device, 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, 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 manner, with reference to the fifth aspect or the first to the fourth possible implementation manners, a protocol data unit transmitted between the cellular access device and the UE in a data transmission process of multiflow aggregation via a non-cellular access device includes radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header, or a newly added adaptation layer header of the protocol data unit; 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 receiving module is further configured to receive a radio bearer mapping relationship between the radio bearer mapping value and the DRB ID or the LC ID sent by the cellular access device if the radio bearer information is the radio bearer mapping value; and if the radio bearer information is the ERAB ID, receiving the radio bearer mapping relationship between the ERAB ID and the DRB ID or the LC ID sent by the cellular access equipment.

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

the receiving module is used for receiving a cellular IP address and a UE identifier of the UE, which are sent by cellular access equipment or User Equipment (UE), wherein the cellular IP address of the UE is a network interconnection protocol IP address allocated by a cellular core network for the UE, and the UE identifier is a Media Access Control (MAC) address of the UE in the non-cellular area.

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

the system comprises a receiver and a control unit, wherein the receiver is used for receiving a cellular network Interconnection Protocol (IP) address of User Equipment (UE) sent by the UE, and the cellular IP address of the UE is an IP address distributed to the UE by a cellular core network;

a processor, configured to perform multi-stream aggregated data transmission with the UE via a non-cellular access device through a cellular IP address of the UE.

In a first possible implementation manner, according to the seventh aspect, the receiver is further configured to receive a UE identity sent by the UE, where the UE identity is a media access control MAC address of the UE in the non-cell.

In a second possible implementation manner, with reference to the seventh aspect or the first possible implementation manner, the cellular access device further includes:

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

In a third possible implementation manner, with reference to the seventh aspect, the first possible implementation manner, or the second possible implementation manner, the transmitter is further configured to transmit an IP address of the cellular access device to the UE.

In a fourth possible implementation manner, with reference to the seventh aspect or the first to third possible implementation manners, the transmitter is further configured to transmit a transport layer protocol and/or a 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, 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, 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 manner, with reference to the seventh aspect or the first possible implementation manner to the fourth possible implementation manner, a protocol data unit transmitted in a data transmission process of multi-stream convergence between the cellular access device and the UE via a non-cellular access device includes radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header, or a newly added adaptation layer header of the protocol data unit; 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 send the radio bearer mapping value and the DRB ID or the LC ID to the UE if the radio bearer information is the radio bearer mapping value; and if the radio bearer information is the ERAB ID, sending the radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID to the UE.

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

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

and the processor is used for carrying out multi-stream converged data transmission between the cellular access equipment and the non-cellular access equipment through the cellular IP address of the UE.

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

the transmitter is further configured to transmit a UE identity to the cellular access device, where the UE identity 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 using the UE identity.

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

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

a receiver configured to receive the IP address of the cellular access device sent by the cellular access device.

In a fourth possible implementation manner, with reference to the eighth aspect or the first to the third possible implementation manners, 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 number includes a port number of the UE and a port number of the cellular access device, 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, 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 manner, with reference to the eighth aspect or the first to the fourth possible implementation manners, a protocol data unit transmitted in a data transmission process of multi-stream convergence between the cellular access device and the UE via a non-cellular access device includes radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header, or a newly added adaptation layer header of the protocol data unit; 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 receive a radio bearer mapping relationship between the radio bearer mapping value and the DRB ID or the LC ID sent by the cellular access device if the radio bearer information is the radio bearer mapping value; and if the radio bearer information is the ERAB ID, receiving the radio bearer mapping relationship between the ERAB ID and the DRB ID or the LC ID sent by the cellular access equipment.

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

the receiver is configured to receive a cellular IP address and a UE identity of a UE sent by a cellular access device or a user equipment UE, where the cellular IP address of the UE is an internet protocol IP address allocated by a cellular core network for the UE, and the UE identity is a media access control MAC address of the UE in the non-cellular area.

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

In an eleventh aspect, an embodiment of the present invention provides a data transmission system, including the cellular access device according to any one of the seventh aspects, the UE according to any one of the eighth aspects, and the non-cellular access device according to the ninth aspect.

The embodiment of the invention provides a data transmission method, a device and a system, which receive an IP address of UE sent by the UE through cellular access equipment, wherein the cellular IP address of the UE is an IP address distributed to the UE by a cellular core network; and performing multi-stream converged data transmission between the cellular access equipment and the UE through a non-cellular access equipment through a cellular IP address of the UE. The cellular access equipment is used as a convergence point and a shunt point of data transmission because the cellular access equipment establishes an IP route with the UE through an IP address of the UE, and the cellular access equipment is sensitive to quality change of a network link of a wireless local area network, so that the service continuity is ensured, the user experience is improved, and the service discontinuity caused by insensitivity to the quality change of the network link of the wireless local area network when the EPC is used as the convergence point and the shunt point is avoided.

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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

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

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

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

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

fig. 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;

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

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

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

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

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

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

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

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

fig. 15 is a first flowchart of a data transmission method according to embodiment 14 of the present invention;

fig. 16 is a second flowchart illustrating a data transmission method according to embodiment 14 of the present invention;

fig. 17 is a third schematic flowchart 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 schematic structural diagram ii of a cellular access device according to embodiment 15 of the present invention;

fig. 20 is a first schematic structural diagram 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;

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

fig. 23 is a first schematic structural diagram of a cellular access device according to embodiment 18 of the present invention;

fig. 24 is a schematic structural diagram ii of a cellular access device according to embodiment 18 of the present invention;

fig. 25 is a first schematic structural diagram 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 will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in 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), CDMA (Code Division Multiple Access), WCDMA (Wideband Code Division Multiple Access), GPRS (General Packet Radio Service), LTE (Long Term Evolution), UMTS (Universal Mobile Telecommunications System), etc., which are not limited in the present invention.

In the embodiment of the present invention, a UE may also be referred to as a Mobile Terminal (english: Mobile Terminal), a Mobile user equipment, and the like, and may communicate with one or more core networks through a RAN (Radio Access Network), where the UE may be a Mobile Terminal, such as a Mobile phone (or referred to as a "cellular" phone) and a computer having the Mobile Terminal, for example, a portable, pocket, handheld, computer-embedded or vehicle-mounted Mobile device, which exchanges languages and/or data with a Radio Access Network, and the present invention is not limited.

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, a Node B (english: Node B) in WCDMA, or an eNB in LTE, and the present invention is not limited thereto. The cellular access device may also be a control node of various access Network nodes, such as an RNC (Radio Network Controller) in UMTS, or a Controller managing multiple small base stations, etc.

In the embodiment of the present invention, the non-cellular Access device may be a WLAN AP (Wireless Local Area network Access Point), a WLAN AC (Wireless Local Area network Access Controller), or other separately deployed entity WT (WLAN Termination), where the WT may be located at the AP, the AC, or an independent entity. In the embodiment of the present invention, the non-cellular access device has two network architectures: an autonomic management architecture and a centralized management architecture. The autonomous management architecture is also called a fat AP architecture, and the WLAN AP is responsible for tasks such as user equipment access, user equipment disconnection, authority authentication, security policy implementation, data forwarding, data encryption, network management and the like, and autonomously controls the configuration and wireless functions of the WLAN AP. The centralized management architecture is also called as a "thin" AP architecture, and the management authority is generally concentrated on an AC (Access Controller). The AC manages an IP (Internet Protocol) address, authentication, encryption, and the like of the user equipment, and the WLAN AP only has functions of encryption, data forwarding, and radio frequency, and cannot work independently. A Control And Provisioning of Wireless Access Point (CAPWAP) specification protocol is adopted between the WLAN AP And the AC. Optionally, the WLAN AP may be integrated with a base station. Since the embodiment of the present invention mainly relates to the data forwarding function of the WLAN AP, both network architectures of the WLAN AP described above can be applied.

It should be further noted that, taking a scenario that the WLAN WT is located in a WLAN AP, an eNB (evolved Node B), and the WLAN WT directly as an example, as shown in fig. 1, a configuration structure of each protocol stack in the eNB, the user equipment, and the WLAN AP in the embodiment of the present invention is described.

First, a protocol stack configuration structure in the eNB is explained:

the eNB protocol stack may have a first eNB protocol stack for implementing data processing for communication with the user equipment on the eNB side and a second eNB protocol stack for implementing data processing for communication with the WLAN AP on the eNB side. As the eNB first protocol stack, for example, existing protocol stacks capable of realizing communication between the eNB and the user equipment are all within a protection range. As the eNB second protocol stack, the aggregation may be directly over at least one protocol layer of the eNB first protocol stack over an interface.

The first protocol stack of the eNB and the second protocol stack of the eNB 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), MAC (Media Access Control), and PHY (Physical layer). The second protocol stack of the eNB may include a user plane protocol stack or a control plane protocol stack, and in the present invention, a transport layer of the user plane protocol stack adopts a newly defined Xw-U (Xw user, Xw interface user protocol), and a specific Xw-U protocol may be an IP layer protocol, and further, a newly added adaptation protocol layer exists on the IP layer protocol. As shown in fig. 1, the transport layer of the Control plane Protocol stack in the present invention uses a Stream Control Transmission Protocol (SCTP) Protocol, a Transmission Control Protocol (TCP) Protocol, or a User Datagram Protocol (UDP), and the Application layer uses a newly defined xwwap (Xw Application Protocol) Protocol. The eNB second protocol stack may be aggregated at the PDCP or RLC of the eNB first protocol stack. The eNB first protocol stack may be shunted at either PDCP or RLC. In this embodiment, the example of the offloading aggregation is performed in the PDCP layer of the first base station protocol stack, but the present invention is not limited thereto.

Next, a description is given of a protocol stack configuration structure in the WLAN:

the WLAN protocol stack has a WLAN first protocol stack and a WLAN second protocol stack. The WLAN first protocol stack is used for data processing for communication with the eNB at the WLAN WT (WLAN Termination), and the WLAN second protocol stack is used for data processing for communication with the user equipment at the WLAN AP side. Specifically, if the WT is located at a WLAN AP, communication between the WT and the WLAN AP is implemented internally, and if the WT is independent of the WLAN AP, the communication protocol stack between the WT and the WLAN AP is defined by IEEE (Institute of Electrical and Electronics Engineers).

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

Finally, the protocol stack configuration structure in the user equipment is explained:

the user equipment protocol stack may have a first user equipment protocol stack and a second user equipment protocol stack, where the first user equipment protocol stack is used to implement data processing for communication with the eNB on the user equipment side, and the second user equipment protocol stack is used to implement data processing for communication with the WLAN AP on the user equipment side. Specifically, the second user plane protocol stack of the user equipment may include a protocol layer, an IP layer, an LLC layer, an MAC layer, and a PHY layer, and further, may further include a newly added adaptation protocol layer on the IP layer.

At the eNB side, a first part of downlink protocol data units shunted for the first protocol stack of the eNB is referred to as a first protocol data unit, and at the user equipment side, a first part of uplink protocol data units shunted for the first protocol stack of the user equipment is referred to as a second protocol data unit. That is, the shunted uplink data and downlink data are both protocol data units, but the invention is not limited thereto.

Similarly, when the WT is located in the AC, the protocol stack is configured in the above manner, and the AC to the AP use the protocol stack of the existing wireless local area network communication, and the rest is similar, which is not described in detail herein.

In the embodiment of the present invention, for a non-cellular network, the UE is an STA (Station), and for a wireless cellular network, the UE is a UE. In the heterogeneous network scenario formed by the non-cellular network and the wireless cellular network according to the embodiment of the present invention, the UE at the user side may be referred to as UE or STA, and may receive services of the two networks, and for convenience of description, the UE is referred to as UE hereinafter.

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 equipment sends IP information to the UE.

Wherein the IP information comprises at least a non-cellular IP address of the UE.

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

Further, the IP information further includes: and the port number comprises a transmission layer protocol and/or a port number, wherein the port number comprises the port number of the UE and the port number of the cellular access equipment, 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, and the transmission layer protocol is a transmission control protocol TCP protocol, a user datagram protocol UDP protocol, a PDCP protocol or an RLC protocol.

Further, the cellular access device can also send a UE identity to the UE, so that the UE accesses the non-cellular access device by using the UE identity, where the UE identity is a MAC address allocated by the cellular access device for the UE, a MAC address obtained by TSMI, CRNTI, or X2AP ID, or a MAC address of the UE at 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 identity. Specifically, the method for acquiring the non-cellular IP address of the UE by using the UE identity by the cellular access device includes: the cellular access equipment selects a non-cellular IP address of the UE from an IP address pool; or the cellular access equipment receives a non-cellular IP address of the UE sent by a 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 DHCP is specifically that the cellular access device sends request information to the WLAN DHCP to request to acquire the non-cellular IP address of the UE, and 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 acquires the non-cellular IP address of the UE using the UE identity, the method further includes: the cellular access device sends the non-cellular IP address of the UE and the UE identity to the non-cellular access device.

Further, a protocol data unit transmitted between the cellular access device and the UE via the non-cellular access device in the data transmission process of the multi-stream convergence includes radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header (the extended PDCP header identifies a reserved bit indication that may be in the source PDCP header), or a new adaptation layer header of the protocol data unit; the radio bearer information is radio access bearer identification (ERAB ID), data radio bearer identification (DRB ID), Logical Channel Identification (LCID) or a 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 convention or a cellular access device. Or there is a certain radio bearer mapping relationship between the radio bearer mapping value and the ERAB ID and between the DRB ID and the LCID, where the radio bearer mapping relationship may be determined by communication protocol convention or cellular access equipment, for example, the radio bearer mapping relationship is defined as the radio bearer mapping value of DRB ID1 or ERAB ID1 or LCID1 is 0000, the radio bearer mapping value of DRB ID2 or ERAB ID2 or LCID2 is 0001, etc. If the rb information is the rb mapping value, the cellular access device can also send the rb mapping relationship between the rb mapping value and the DRB ID or LCID to the UE. If the radio bearer information is the ERAB ID, the cellular access device may further send a radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID to the UE.

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

S102, multi-stream converged data transmission is carried out between the cellular access equipment and the UE through the non-cellular IP address of the UE and the non-cellular access equipment.

The cellular access equipment sends the IP information to the UE, because an IP route is established between the cellular access equipment and the UE through a non-cellular IP address of the UE, the cellular access equipment is used as a convergent point and a shunt point for data transmission, and because the cellular access equipment is sensitive to quality change of a network link of a wireless local area network, service continuity is ensured, user experience is improved, and service discontinuity caused by insensitivity to quality change of the network link of the wireless local area network when EPC is used as the convergent point and the shunt point is avoided.

Specifically, the detailed process of the cellular access device sending the IP information to the UE and performing the data transmission of the multi-stream aggregation between the cellular access device and the UE through the non-cellular IP address of the UE via the non-cellular access device will be described in detail in the following embodiments, and details are not repeated herein.

The embodiment of the invention provides a data transmission method, which comprises the steps of sending IP information to UE through cellular access equipment, wherein the IP information at least comprises a non-cellular IP address of the UE; and performing multi-stream converged data transmission between the cellular access equipment and the UE through the non-cellular access equipment by using the IP information. The cellular access equipment is used as a convergence point and a shunt point of data transmission because the cellular access equipment establishes an IP route with the UE through an IP address of the UE, and the cellular access equipment is sensitive to quality change of a network link of a wireless local area network, so that the service continuity is ensured, the user experience is improved, and the service discontinuity caused by insensitivity to the quality change of the network link of the wireless local area network when the EPC is used as the convergence point and the shunt point is avoided.

Example 2

An embodiment of the present invention provides a data transmission method, as shown in fig. 3, the method includes:

s201, the UE acquires IP information.

Specifically, the method for acquiring the IP information by the UE specifically includes: the UE receives a non-cellular IP address of the UE sent by the cellular access equipment; or, the UE receives the non-cellular IP address of the UE sent by the PGW.

Further, the UE can also receive a UE identity sent by the cellular access device, and use the UE identity to access the non-cellular access device. The UE identifier is a MAC address allocated by the cellular access device to the UE, a MAC address obtained by TSMI, CRNTI, or X2AP ID, or a MAC address of the UE in a non-cellular environment.

Specifically, the method for accessing the non-cellular access device by the UE using the UE identifier includes: the UE accesses the non-cellular access equipment by using the non-cellular IP address of the UE through the UE identification; or the UE uses the UE identification to apply to a DHCP server of the non-cellular network to access the non-cellular access equipment by using the IP address of the non-cellular network 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 identity to the non-cellular access device.

Further, a protocol data unit transmitted between the cellular access device and the UE via the non-cellular access device in the data transmission process of the multi-stream convergence includes radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header (the extended PDCP header identifies a reserved bit indication that may be in the source PDCP header), or a new adaptation layer header of the protocol data unit; the radio bearer information is radio access bearer identification (ERAB ID), data radio bearer identification (DRB ID), Logical Channel Identification (LCID) or a 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 convention or a cellular access device. Alternatively, 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 communication protocol convention or cellular access equipment, for example, the radio bearer mapping relationship is defined as the radio bearer mapping value of DRB ID1 or ERAB ID1 or LCID1 is 0000, the radio bearer mapping value of DRB ID2 or ERAB ID2 or LCID2 is 0001, and so on. If the rb information is the rb mapping value, the UE can receive the rb mapping relationship between the rb mapping value and the DRB ID or LCID to the UE. If the radio bearer information is the ERAB ID, the UE can receive the radio bearer mapping relationship between the ERAB ID and the DRB ID or LCID to the UE.

S202, multi-stream converged data transmission is carried out between the UE and the cellular access equipment through the non-cellular IP address of the UE and the non-cellular access equipment.

Example 3

An embodiment of the present invention provides a data transmission method, as shown in fig. 4, the method includes:

s301, the non-cellular access equipment receives a non-cellular IP address and a UE identification of the UE sent by the cellular access equipment or the UE.

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

The embodiment of the invention provides a data transmission method, which comprises the steps of sending IP information to UE through cellular access equipment, wherein the IP information at least comprises a non-cellular IP address of the UE; and performing multi-stream converged data transmission between the cellular access equipment and the UE through the non-cellular access equipment by using the IP information. Because the IP route is established between the cellular access equipment and the UE through the non-cellular IP address of the UE, the cellular access equipment is used as a convergence point and a shunt point for data transmission, and the cellular access equipment is sensitive to the quality change of a network link of the wireless local area network, thereby ensuring the service continuity, improving the user experience, and avoiding the service discontinuity caused by insensitivity to the quality change of the network link of the wireless local area network when the EPC is used as the convergence point and the shunt point.

Example 4

An embodiment of the present invention provides a data transmission method, as shown in fig. 5, where the method includes:

s401, the PGW sends the IP information to the UE.

Further, before the PGW sends the IP information to the UE, the PGW may further obtain a non-cellular IP address of the UE by using a UE identifier, where the UE identifier is a MAC address allocated by the cellular access device for the UE, a MAC address obtained by TSMI, CRNTI, or S5UE ID, or a MAC address of the UE in a non-cellular environment.

Specifically, the method for acquiring the non-cellular IP address of the UE by using the UE identity by the PGW specifically includes: the PGW allocates a non-cellular IP address of the UE to the UE; alternatively, the PGW receives the non-cellular IP address of the UE sent by the WLAN DHCP.

Example 5

An embodiment of the present invention provides a data transmission method, which takes an example that a cellular access device is an eNB, a non-cellular access device is a WT and is located in a WLAN AP, and a PDCP layer performs forking, to be specific, in the embodiment of the present invention, both multiflow aggregation request information and multiflow aggregation acknowledgement information may be sent in a form of a message, which is not limited in the present invention. As shown in fig. 6, the method includes:

s501, the eNB sends IP information to the UE.

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

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

It should be noted that The port number may be predetermined in advance, for example, configured by OAM (Operation Administration and Maintenance), configured by The UE and eNB when leaving The factory, registered by IETF (Internet Engineering Task Force), and defined by 3GPP (for example, a port number corresponding to a newly defined PDCP protocol or a port number corresponding to an RLC protocol).

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

It is added that the eNB needs to use the UE identity to obtain the non-cellular IP address of the UE before the eNB sends the IP information to the UE.

It should be noted that the method for the eNB to obtain the non-cellular IP address of the UE by using the UE identity specifically includes the following three cases: the eNB selects a non-cellular IP address of the UE from the IP address pool; or the eNB receives a non-cellular IP address of the UE sent by a WLAN dynamic host configuration protocol (WLAN DHCP); or the eNB receives the non-cellular IP address of the UE sent by the packet data network gateway PGW.

Specifically, the method for the eNB to receive the non-cellular IP address of the UE sent by the WLAN DHCP includes that the eNB sends request information to the WLAN DHCP to request 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 non-cellular IP address of the UE to the eNB.

The UE identification is a Media Access Control (MAC) address distributed by the eNB for the UE, and the MAC address is obtained by using a temporary mobile subscriber identification (TSMI), a Cell Radio Network Temporary Identification (CRNTI) or an X2 application protocol identification (X2 AP ID), or the MAC address of the UE in a WLAN AP.

It is to be added that the eNB can configure the UE to perform non-cellular network measurement and reporting before the eNB uses the UE identity to obtain the non-cellular IP address of the UE. After receiving the measurement result of the UE on the non-cellular network, the eNB determines whether to perform multiflow aggregated data transmission with the UE via the WLAN AP through the non-cellular IP address of the UE. Or, the eNB can also directly acquire an available WLAN AP through OAM, and determine whether to perform multi-stream aggregated data transmission with the UE through the WLAN AP through the non-cellular IP address of the UE according to a load of the WLAN AP.

S502, the eNB sends the non-cellular IP address of the UE and the UE identification 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 the WLAN AP receives the multi-stream aggregated data sent by the eNB, the UE can be identified according to the non-cellular IP address and the UE identifier of the UE, and the multi-stream aggregated data is sent to the UE.

S503, the eNB sends the UE identification to the UE.

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

It should be noted that, there is no precedence relationship between step S501 and step S503, and the eNB may send the IP information to the UE first, and then send the UE identifier to the UE; or the UE identification can be sent to the UE first, and then the IP information can be sent to the UE; the IP information and the UE identity may also be sent to the UE together, which is not limited in the present invention.

Generally, the eNB sends the UE identity to the UE through an RRC message, an air interface message, or a newly defined message such as an RRC reconfiguration message.

S504, the eNB sends multi-flow aggregation request information to the UE, wherein the multi-flow aggregation request information at least comprises a Basic Service Set Identification (BSSID) of the WLAN AP.

And S505, the UE accesses the WLAN AP by using the UE identification.

Specifically, the process of accessing the WLAN AP by the UE using the UE identifier includes: the UE accesses the WLAN AP by using the non-cellular IP address of the UE through the UE identification; or the UE uses the UE identification to apply to a DHCP server of the non-cellular network to access the WLAN AP by using the IP address of the non-cellular network of the UE.

S506, the eNB receives the multi-stream aggregation confirmation information sent by the UE.

It should be added that, if the UE cannot accept the multiflow aggregation request information due to user preference, terminal configuration, ANDSF policy, or the like, or the UE does not successfully access the WLAN AP, the eNB receives multiflow aggregation failure information sent by the UE.

And S507, performing multi-stream converged data transmission between the eNB and the UE through the WLAN AP through the non-cellular IP address of the UE.

Exemplarily, taking PDCP offload convergence as an example, a process of performing multi-stream converged data transmission between an eNB and a UE via a WLAN AP through a non-cellular IP address of the UE specifically includes:

in the direction of downlink data transmission, the eNB adds UDP and/or IP headers to the PDCP PDUs shunted to the non-cellular network, or if an adaptation protocol layer exists, adds a header corresponding to the adaptation layer before the UDP header addition. The eNB fills the destination connection port number as the port number of the UE, such as the port number of the PDCP protocol, and fills the source connection port number as the port number of the eNB in the added UDP header. Wherein the source port number may be the same as the destination port number. In the added IP header, the destination 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 an IP header of the protocol data unit, or in a PDCP header, or in an extended PDCP header (an extended PDCP header identification may be indicated in the source PDCP header), or in a newly added adaptation layer header, and the radio bearer information is a radio access bearer identification ERAB ID, a data radio bearer identification DRB, a logical channel identification LCID, or a radio bearer mapping value.

Then, the eNB transmits the PDCP protocol data unit added with the UDP and/or IP header to layer 1 of the protocol stack of the WLAN AP through layer 2 and layer 1, and after processing through layer 1 and layer 2 of the WLAN AP, restores the PDCP protocol data unit added with the UDP and/or IP header, and the WLAN AP adds an LLC header (if there is no LLC header, the WLAN AP does not need to perform this step), and then generates an MAC protocol data unit according to the corresponding relationship between the non-cellular IP address of the UE and the UE identity, 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 sequence (if there is no LLC header, the UE does not need to perform this step), obtains the PDCP protocol data unit added with the UDP and/or IP header, and delivers it to the adaptation layer for processing. And judging whether the protocol data unit is transmitted from the eNB according to the IP address of the eNB in the IP header. If the protocol data unit is transmitted from the eNB and simultaneously reads the bearer information, if the radio bearer information is in an IP header or an 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 an additional adaptation layer is added, the header corresponding to the adaptation layer is deleted, and the PDCP protocol data unit is processed by a PDCP entity corresponding to the bearer. If the radio bearer information is at the PDCP header or the extended PDCP header, directly handing the PDCP data packet to a PDCP entity, identifying bearer by the PDCP entity according to the radio bearer information of the PDCP header and the extended PDCP header, and handing the bearer to a corresponding PDCP entity; it should be further noted that, if the eNB has multiple bearers but only shunts one bearer, the eNB needs to notify the UE of information of the shunted bearer through an air interface message, and the UE hands the received shunted data to the PDCP entity of the bearer corresponding to the UE according to the bearer information to process the data.

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

Subsequently, the UE adds an LLC header to the PDCP protocol data unit with UDP and/or IP headers added thereto (if there is no LLC header, the UE does not need to perform this step), generates a MAC protocol data unit, and transmits 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 sequence (if there is no LLC header, the WLAN AP does not need to execute this step), obtains the PDCP protocol data unit to which the UDP and/or IP header is added, then forwards the protocol data unit to layer 1 of the eNB protocol stack after processing through layer 2 and layer 1 according to the IP address of the eNB in the IP header, and the eNB receives the protocol data unit and then processes through layer 1 and layer 2, restores the PDCP protocol data unit to which the UDP and/or IP is added, and sends it to the adaptation layer for processing. And judging that the target address in the IP header is the IP address of the eNB, reading the bearing information, if the radio bearing information is in the IP header or the adaptation layer header, reading the radio bearing information from the IP header or the adaptation layer header, deleting the IP header, or if a newly added adaptation layer exists, deleting the header corresponding to the adaptation layer, and handing the PDCP data packet to a PDCP entity corresponding to the bearing for processing. If the radio bearer information is at the PDCP header or the extended PDCP header, directly handing the PDCP data packet to a PDCP entity, identifying bearer by the PDCP entity according to the radio bearer information of the PDCP header and the extended PDCP header, and handing the bearer to a corresponding PDCP entity; particularly, in a scenario of offloading multiple bearers, bearer information corresponding to a port number or an IP address is handed over to a PDCP entity of a corresponding bearer for processing. It should be further noted that, if the eNB has multiple bearers but only shunts one bearer, the eNB needs to notify the UE of information of the shunted bearer through an air interface message, and the UE hands the received shunted data to the PDCP entity of the bearer corresponding to the UE according to the bearer information to process the data.

Example 6

In the embodiments of the present invention, a cellular access device is taken as an eNB, and a non-cellular access device is taken as a WLAN AP for explanation, and in the embodiments of the present invention, both multiflow aggregation request information and multiflow aggregation confirmation information may be sent in a form of a message, which is not limited in the present invention. As shown in fig. 7, the method includes:

s601, the eNB sends the multi-stream convergence request information to the UE.

Wherein the multiflow aggregation request information at least includes a basic service set identification BSSID of the WLAN AP, IP information, and a UE identification.

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

Further, the IP information further includes: and the port number comprises a port number of the UE and a port number of the eNB, 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, and the transport layer protocol is a transmission control protocol TCP protocol, a user datagram protocol UDP protocol, a PDCP protocol or an RLC protocol.

It is to be added that, before the eNB sends the multiflow aggregation request message to the UE, the eNB further needs to use the UE identity 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 identification to the WLAN AP.

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

S603, the UE accesses the WLAN AP by using the UE identification.

S604, the eNB receives the multi-stream convergence acknowledgement information sent by the UE.

S605, performing multi-stream converged data transmission between the eNB and the UE through the WLAN AP through the non-cellular IP address of the UE.

Specifically, the process of performing multi-stream aggregated data transmission between the eNB and the UE through the WLAN AP by using the non-cellular IP address of the UE has been described in detail in step S507 in embodiment 5, and is not described herein again.

Example 7

In the embodiments of the present invention, a cellular access device is taken as an eNB, and a non-cellular access device is taken as a WLAN AP for explanation, and in the embodiments of the present invention, both multiflow aggregation request information and multiflow aggregation confirmation information may be sent in a form of a message, which is not limited in the present invention. As shown in fig. 8, the method includes:

s701, the eNB sends the IP information to the UE.

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

Specifically, the process of the eNB acquiring the non-cellular IP address of the UE by using the UE identity is already described in detail in step S501 in embodiment 5, and is not described here again.

S702, the eNB sends the UE identification to the UE.

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

If the step S701 and the step S702 are separately sent through independent messages, the eNB further needs to send the multiflow aggregation request information to the UE, and the step S701, the step S702 and the eNB send the multiflow aggregation request information to the UE without performing a precedence relationship; if step S701 and step S702 send the multiflow aggregation request information to the UE, the multiflow aggregation request information includes a basic service set identifier BSSID of the WLAN AP, IP information, and a UE identifier.

The eNB sends the multiflow aggregation request information to the UE, and correspondingly, the eNB can also receive multiflow aggregation confirmation information sent by the UE.

S703, the UE sends the non-cellular IP address of the UE and the UE identification to the WLAN AP.

The UE sends the non-cellular IP address of the UE and the UE identification to the WLAN AP, so that when the WLAN AP receives the multi-stream aggregated data sent by the source end equipment, the target end equipment can be identified according to the non-cellular IP address of the UE and the UE identification, and the multi-stream aggregated data is sent to the target end equipment. If the source end equipment is UE, the destination end equipment is eNB; and if the source end equipment is the eNB, the destination end equipment is the UE.

S704, the UE accesses the WLAN AP by using the UE identification.

S705, performing multi-stream converged data transmission between the eNB and the UE through the WLAN AP through the non-cellular IP address of the UE.

Example 8

An 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 an example, and as shown in fig. 9, the method includes:

s801, the eNB sends IP information to the UE.

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

It is added that the eNB uses the UE identity to obtain the non-cellular IP address of the UE before the eNB sends IP information to the UE.

S802, the eNB sends the UE identification to the UE.

S803, the UE accesses the WLAN AP by using the UE identification.

S804, the UE sends the BSSID of the WLAN AP to the eNB.

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

And S806, performing multi-stream converged data transmission between the eNB and the UE through the WLAN AP through the non-cellular IP address of the UE.

Example 9

An 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 an example, and as shown in fig. 10, the method includes:

s901, the eNB sends IP information to the UE.

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

S902, the eNB sends the UE identification to the UE.

S903, the UE accesses the WLAN AP by using the UE identification.

S904, the UE sends the non-cellular IP address of the UE and the UE identity to the WLAN AP.

Specifically, the process of the UE sending the non-cellular IP address of the UE and the UE identity to the WLAN AP has been described in detail in step S704 in embodiment 7, and is not described herein again.

S905, the UE sends the BSSID of the WLAN AP to the eNB.

S906, multi-stream aggregated data transmission is carried out between the eNB and the UE through the WLAN AP through the non-cellular IP address of the UE.

Example 10

In the embodiments of the present invention, a cellular access device is taken as an eNB, and a non-cellular access device is taken as a WLAN AP for explanation, and in the embodiments of the present invention, both multiflow aggregation request information and multiflow aggregation confirmation information may be sent in a form of a message, which is not limited in the present invention. As shown in fig. 11, the method includes:

s1001, the PGW sends the IP information to the UE.

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

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

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

S1002, the eNB sends the non-cellular IP address of the UE and the UE identification to the WLAN AP.

S1003, the eNB sends the UE identification to the UE.

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

If the step S1003 is sent separately through an independent message, the eNB further needs to send the multiflow aggregation request information to the UE, and the step S1003 and the eNB send the multiflow aggregation request information to the UE without performing a precedence relationship; if step S1003 sends the multiflow aggregation request message to the UE, the multiflow aggregation request message includes a basic service set identifier BSSID of the WLAN AP and a UE identifier.

S1004, the UE accesses the WLAN AP by using the UE identification.

S1005, performing multi-stream aggregated data transmission between the eNB and the UE through the WLAN AP by using the non-cellular IP address of the UE.

Example 11

An embodiment of the present invention provides a data transmission method, as shown in fig. 12, where the method includes:

s1101, the cellular access equipment receives the cellular IP address of the UE sent by the UE.

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

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 an LTE identity of the UE, where the LTE identity of the UE may be a Cell Radio Network Temporary Identity (CRNTI).

Further, the cellular access device can also receive a UE identity sent by the UE, where the UE identity is a MAC address of the UE in the non-cellular environment.

Specifically, after the cellular access device receives the non-cellular MAC address of the UE, 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 sent by the UE, the cellular access device sends the cellular IP address of the UE and the UE identification to the non-cellular access device.

Further, the cellular access device is also capable of sending 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 equipment sends a transport layer protocol and/or a port number to the UE, wherein the port number comprises the port number of the UE and the port number of the cellular access equipment, the port number is a port number corresponding to a PDCP protocol or a port number corresponding to an RLC protocol, and the transport layer protocol is a TCP protocol, a UDP protocol, the PDCP protocol or the RLC protocol.

Further, a protocol data unit transmitted between the cellular access device and the UE via the non-cellular access device in the data transmission process of the multi-stream convergence includes radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header (the extended PDCP header identifies a reserved bit indication that may be in the source PDCP header), or a new adaptation layer header of the protocol data unit; the radio bearer information is an ERAB ID, a DRB ID, an LC ID, or a radio bearer mapping value. The rb mapping value has a certain rb mapping relationship with the ERAB ID, the DRB ID, and the LC ID, where the rb mapping relationship may be determined by communication protocol convention or cellular access equipment, for example, the rb mapping relationship is defined as DRB ID1, the rb ID1, or the LC ID1, the DRB ID2, the ERAB ID2, or the LC ID2, and the like. If the rb information is the rb mapping value, the cellular access device can also send the rb mapping relationship between the rb mapping value and the DRB ID or the LC ID to the UE. If the radio bearer information is the ERAB ID, the cellular access device may further send a radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID to the UE.

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

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

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

Optionally, when the radio bearer information is a logical channel identifier, since the logical channel has a mapping relationship with the radio bearer, a receiving end (for example, the receiving end is an eNB during uplink data transmission, and the receiving end is a UE during downlink data transmission) may obtain the radio bearer identifier according to the logical channel identifier. Taking PDCP layer offloading 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 and the PDCP entity of the PDCP layer have a one-to-one correspondence. That is, each PDCP entity corresponds to one radio bearer, and the number of PDCP entities is determined by the number of radio bearers established.

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 data transmission for multi-stream convergence between the cellular access device and the UE via the non-cellular access device includes an SN number, where the SN number is used to indicate flow control during data transmission for multi-stream convergence between the cellular access device and the UE 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 transmission of the protocol data unit fails according to the discontinuous SN number. Similarly, the UE can also read the SN number in the PDCP header, the extended PDCP header, or the newly added adaptation layer header to feed back the transmission status of the protocol data unit to the cellular access device.

S1102, multi-stream aggregated data transmission is carried out between the cellular access equipment and the UE through the cellular IP address of the UE and the non-cellular access equipment.

The embodiment of the invention provides a data transmission method, which comprises the steps of receiving a cellular IP address of UE (user equipment) sent by the UE through cellular access equipment, wherein the cellular IP address of the UE is an IP address distributed to the UE by a cellular core network; and performing multi-stream converged data transmission between the cellular access equipment and the UE through the cellular IP address of the UE and the non-cellular access equipment. The cellular access equipment is used as a convergence point and a shunt point of data transmission because the cellular access equipment establishes an IP route with the UE through an IP address of the UE, and the cellular access equipment is sensitive to quality change of a network link of a wireless local area network, so that the service continuity is ensured, the user experience is improved, and the service discontinuity caused by insensitivity to the quality change of the network link of the wireless local area network when the EPC is used as the convergence point and the shunt point is avoided.

Example 12

An embodiment of the present invention provides a data transmission method, as shown in fig. 13, where the method includes:

s1201, the UE sends the cellular IP address of the UE to the cellular access equipment.

It is added that the UE is also capable of sending a UE identity to the cellular access device and using the UE identity to access the non-cellular access device. Wherein the UE identity is the MAC address of the UE in the non-cellular.

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

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

Further, a protocol data unit transmitted between the cellular access device and the UE via the non-cellular access device in the data transmission process of the multi-stream convergence includes radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header (the extended PDCP header identifies a reserved bit indication that may be in the source PDCP header), or a new adaptation layer header of the protocol data unit; the radio bearer information is an ERAB ID, a DRB ID, an LCID, or a radio bearer mapping value. The rb mapping value has a certain rb mapping relationship with the ERAB ID, the DRB ID, and the LCID, where the rb mapping relationship may be determined by communication protocol convention or cellular access device, for example, the rb mapping relationship is defined as DRB ID1, the rb ID1, or the LCID1, the DRB ID2, the ERAB ID2, or the LCID2, and the like. And if the radio bearer information is the radio bearer mapping value, the UE receives the radio bearer mapping relation between the radio bearer mapping value and the DRB ID or the LC ID sent by the cellular access equipment. And if the radio bearer information is the ERAB ID, the UE receives the radio bearer mapping relation between the ERAB ID and the DRB ID or the LC ID sent by the cellular access equipment.

The IP header, PDCP header, extended PDCP header or newly added adaptation layer header further comprises: priority information of a logical channel corresponding to the LC ID, priority information of a data radio bearer corresponding to the DRB ID, priority information of a radio bearer mapping value corresponding to the radio bearer mapping value, or priority information of a radio access bearer corresponding to the ERAB ID. The priority information may be a QCI. The priority information of the logical channel, the priority information of the data radio bearer, the priority information of the radio bearer mapping value and the priority information of the radio access bearer have consistency.

Further, the UE can associate the cellular IP address of the UE with the LTE identity of the UE, which may be CRNTI; the UE is also capable of associating the UE's cellular IP address with the UE's non-cellular MAC address (i.e., UE identity).

Further, the protocol data unit transmitted between the cellular access device and the UE via the non-cellular access device in the data transmission process of the multi-stream convergence may further include a sequence SN number, where the SN number is used to refer to flow control between the cellular access device and the UE via the non-cellular access device in the data transmission process of the multi-stream convergence.

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, multi-stream converged data transmission is carried out between the UE and the cellular access equipment through a cellular IP address of the UE and the non-cellular access equipment.

Example 13

An embodiment of the present invention provides a data transmission method, as shown in fig. 14, where the method includes:

s1301, the non-cellular access equipment receives the cellular IP address and the UE identification of the UE sent by the cellular access equipment or the UE.

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

Further, the non-cellular access device maps the QCI parameter in the IP header, in the PDCP header, in the extended PDCP header, or in the newly added adaptation layer header with the priority of the MAC frame or the priority of the 802.3 frame. Specifically, if the non-cellular access device is a WLAN AP in the downlink data transmission process, that is, the WT is located in the WLAN AP, the WLAN AP maps the QCI parameter to the priority in the MAC frame, where the priority in the MAC frame is indicated in a TID (Traffic Identifier); if the non-cellular access device is a WLAN AC during downlink data transmission, i.e. the WT is located in the WLAN AC, the WLAN AP maps the QCI to the priority in the 802.3 frame, as indicated in the TCI (tag control information field) in the specific 802.3 or 802.1P. The mapping relationship between QCI and TCI and TID may be agreed by the communication protocol, and the present invention is not limited.

Similarly, in the uplink data transmission process, the method for the non-cellular access device to map the QCI parameter 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 of the 802.3 frame is similar to the downlink data transmission process, and is not described here again.

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, the failed protocol data unit is determined according to the continuity of the SN number.

Example 14

In the embodiments of the present invention, a data transmission method is provided, where a cellular access device is an LTE eNB, a non-cellular access device is a WT located in a WLAN AP, and a PDCP layer is shunted as an example for explanation, in the embodiments of the present invention, both multiflow aggregation request information and multiflow aggregation acknowledgement information may be sent in a form of a message, which is not limited in the present invention. As shown in fig. 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 LTE with the IP address of the UE in LTE, where the identifier of the UE in LTE may be CRNTI.

Specifically, as shown in fig. 16, if the eNB sends the multiflow aggregation request message to the UE before the UE sends the LTE IP address of the UE to the eNB, then:

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

It should be further noted that, before the eNB sends the multiflow aggregation request message 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 multiflow aggregation data transmission with the UE via the WLAN AP is required. Or, the eNB may also directly obtain information of available WLAN APs through OAM, and determine whether to perform multiflow aggregated data transmission with the UE via the WLAN APs according to the load of the WLAN APs.

Generally, an eNB sends multiflow aggregation request information to a UE through an RRC message, an air interface message, or a newly defined message such as an RRC reconfiguration message. The multi-stream aggregation request message may also be other newly defined messages. As long as the message can trigger the UE to configure the message for the purpose of multiflow Aggregation (LTE WLAN mulitstream Aggregation for short).

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

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

Specifically, as shown in fig. 17, if the eNB sends the multiflow aggregation request message 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 identification is the MAC address of the UE in the WLAN, the UE sending the UE identification to the eNB can be sent through the same message as the UE sending the LTE IP address of the UE to the eNB, or can be sent through different messages, and the two steps do not have the execution precedence relationship.

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

And the UE accesses the WLAN AP by using the BSSID, SSID or HESSID according to the received WLAN AP, and accesses the WLAN AP with the specified BSSID, SSID or HESSID.

Optionally, the UE sends multiflow aggregation confirmation information to the eNB, where the multiflow aggregation confirmation information may include a UE identifier. If the UE does not send the UE identifier to the eNB before the UE sends the multi-stream convergence confirmation information to the eNB, the UE identifier is carried in the multi-stream convergence confirmation information and sent to the eNB; if the UE sends the UE identifier to the eNB before the UE sends the multiflow aggregation confirmation information to the eNB, the UE identifier may be carried in the multiflow aggregation confirmation information and sent to the eNB, and the multiflow aggregation confirmation information may not include the UE identifier; and when the UE sends the UE identity to the eNB before the UE sends the multiflow aggregation confirmation information to the eNB, the step of sending the multiflow aggregation confirmation information to the eNB by the UE is also optional.

It should be noted that the multi-stream aggregation acknowledgement message may also be other newly defined messages. No matter what message is used, the aim of confirming that the UE completes the configuration for multi-stream aggregation is achieved. The multiflow aggregation failure information may also be other newly defined messages, as long as the purpose of confirming the multiflow aggregation failure of the UE can be achieved.

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

S1402, the eNB and the UE perform multi-stream converged data transmission through the WLAN AP through the LTE IP address of the UE.

Exemplarily, taking PDCP offload convergence as an example, a process of performing data transmission of multi-stream convergence between the eNB and the UE through the WLAN AP via the LTE IP address of the UE specifically includes:

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

Then, the eNB transmits the PDCP protocol data unit added with the IP header to layer 1 of the protocol stack of the WLAN AP through layer 2 and layer 1, and after processing through layer 1 and layer 2 of the WLAN AP, restores the PDCP protocol data unit added with the IP header, the WLAN AP adds an LLC header (if there is no LLC header, the WLAN AP does not need to perform this step), and then generates an MAC protocol data unit according to a correspondence between the LTE IP address of the UE and the UE identity (UE WLAN MAC address), and transmits the MAC protocol data unit to the UE through a 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 sequence (if there is no LLC header, the UE does not need to perform this step), and obtains the PDCP protocol data unit to which the IP header is added. And judging whether the protocol data unit is transmitted from the eNB according to the IP address of the eNB in the IP header. If the protocol data unit is transmitted from the eNB and simultaneously reads the bearer information, if the radio bearer information is in an IP header or an 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 an additional adaptation layer is added, the header corresponding to the adaptation layer is deleted, and the PDCP protocol data unit is processed by a PDCP entity corresponding to the bearer. If the radio bearer information is at the PDCP header or the extended PDCP header, directly handing the PDCP data packet to a PDCP entity, identifying bearer by the PDCP entity according to the radio bearer information of the PDCP header and the extended PDCP header, and handing the bearer to a corresponding PDCP entity; it should be further noted that, if the eNB has multiple bearers but only shunts one bearer, the eNB needs to notify the UE of information of the shunted bearer through an air interface message, and the UE hands the received shunted data to the PDCP entity of the bearer corresponding to the UE according to the bearer information to process the data.

In the uplink direction, the UE adds an IP header to the PDCP protocol data unit shunted to the WLAN AP, or adds a header corresponding to an adaptation layer before the IP header is added if the adaptation protocol layer exists. In the adding of the IP header, the destination address is filled as the IP address of the eNB, the source address is filled 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 identification may be indicated in the source PDCP header), or in the newly added adaptation protocol layer header, and the radio bearer information is the radio access bearer identification ERAB ID, the data radio bearer identification DRB, the logical channel identification LCID, or the radio bearer mapping value.

Subsequently, the UE adds an LLC header to the PDCP protocol data unit with the IP header added thereto (if there is no LLC header, the UE does not need to perform this step), generates a MAC protocol data unit, and transmits 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 sequence (if there is no LLC header, the WLAN AP does not need to execute this step), obtains the PDCP protocol data unit added with the UIP header, then forwards the protocol data unit to layer 1 of the eNB protocol stack after processing through layer 2 and layer 1 according to the IP address of the eNB in the IP header, and the eNB restores the PDCP protocol data unit added with the IP header after receiving the protocol data unit and processing through layer 1 and layer 2. Judging that the IP address is the IP address of the eNB through the destination address in the IP header, reading the bearing information at the same time, if the radio bearing information is in the IP header or the adaptation layer header, reading the radio bearing information from the IP header or the adaptation layer header, deleting the IP header, or if a newly added adaptation layer exists, deleting the header corresponding to the adaptation layer, and handing the PDCP protocol data unit to a PDCP entity corresponding to the bearing for processing. If the radio bearer information is in the PDCP header or the extended PDCP header, the PDCP data packet is directly delivered to the PDCP entity, the PDCP entity identifies the bearer according to the radio bearer information of the PDCP header and the extended PDCP header, and then the bearer is delivered to the corresponding PDCP entity. It should be further noted that, if the eNB has multiple bearers but only shunts one bearer, the eNB needs to notify the UE of information of the shunted bearer through an air interface message, and the UE hands the received shunted data to the PDCP entity of the bearer corresponding to the UE according to the bearer information to process the data.

It should be noted that if a transport protocol exists, a UDP/TCP header is added after the IP header is added, and the rest is similar, and the description is omitted here.

Further, based on the above procedure, the WLAN AP maps the QCI parameter 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 of the 802.3 frame when receiving the protocol data unit. Specifically, if the WLAN AP maps the QCI parameter to a priority in the MAC frame during downlink data transmission, where the priority in the MAC frame is indicated in TID (Traffic Identifier); the mapping relationship between QCI and TID may be agreed by the communication protocol, and the present invention is not limited.

Similarly, in the uplink data transmission process, the method for the WLAN AP to map the QCI parameter 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 of the 802.3 frame is similar to the downlink data transmission process, and is not described here again.

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 UE, where the cellular IP address of the UE is an IP address allocated to the UE by a cellular core network.

And the processing module 11 is configured to perform multiflow aggregated data transmission with the UE through a cellular IP address of the UE via the non-cellular access device.

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

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

a sending module 12, configured to send the cellular IP address of the UE and the UE identity 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 the 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, 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, and the transport layer protocol is a transport control protocol TCP protocol, a user datagram protocol UDP protocol, a PDCP protocol, or an RLC protocol.

Further, a protocol data unit transmitted between the cellular access device and the UE via the non-cellular access device in the data transmission process of the multi-stream convergence includes radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header of a protocol data unit, or a 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 send a radio bearer mapping relationship between the radio bearer mapping value and the DRB ID or the LC ID to the UE if the radio bearer information is the radio bearer mapping value; and if the radio bearer information is the ERAB ID, sending the radio bearer mapping relation between the ERAB ID and the DRB ID or the LCID 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 a logical channel corresponding to the LC ID, priority information of a data radio bearer corresponding to the DRB ID, priority information of a radio bearer mapping value corresponding to the radio bearer mapping value, or priority information of a radio access bearer corresponding to the ERAB ID.

An embodiment of the present invention provides a cellular access device, including: the receiving module is used for receiving a cellular network Interconnection Protocol (IP) address of the UE sent by the UE, wherein the cellular IP address of the UE is an IP address distributed to the UE by a cellular core network; and the processing module is used for carrying out multi-stream converged data transmission with the UE through the cellular IP address of the UE and the non-cellular access equipment. The cellular access equipment is used as a convergence point and a shunt point of data transmission because the cellular access equipment establishes an IP route with the UE through an IP address of the UE, and the cellular access equipment is sensitive to quality change of a network link of a wireless local area network, so that the service continuity is ensured, the user experience is improved, and the service discontinuity caused by insensitivity to the quality change of the network link of the wireless local area network when the EPC is used as the convergence point and the shunt point is avoided.

Example 16

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

a sending module 20, configured to send a cellular internet 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 for the UE.

A processing module 21, configured to perform multiflow aggregated data transmission with a cellular access device through a cellular IP address of the UE via a non-cellular access device.

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

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

Further, the sending module 20 is further configured to send the cellular IP address of the UE and the UE identity 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:

a receiving module 22, configured to receive the 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, 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, and the transport layer protocol is a transmission control protocol TCP protocol, a user datagram protocol UDP protocol, a PDCP protocol, or an RLC protocol.

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

An embodiment of the present invention provides a UE, including: the system comprises a sending module, a receiving module and a sending module, wherein the sending module is used for sending a cellular network Interconnection Protocol (IP) address of User Equipment (UE) to cellular access equipment, and the cellular IP address of the UE is an IP address distributed to the UE by a cellular core network; and the processing module is used for carrying out multi-stream converged data transmission with the cellular access equipment through the cellular IP address of the UE and the non-cellular access equipment. The cellular access equipment is used as a convergence point and a shunt point of data transmission because the cellular access equipment establishes an IP route with the UE through an IP address of the UE, and the cellular access equipment is sensitive to quality change of a network link of a wireless local area network, so that the service continuity is ensured, the user experience is improved, and the service discontinuity caused by insensitivity to the quality change of the network link of the wireless local area network when the EPC is used as the convergence point and the shunt point is avoided.

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 of the UE and a UE identifier sent by the cellular access device or the UE, where the cellular IP address of the UE is an internet protocol IP address allocated by the cellular core network for the UE, and the UE identifier is a media access control MAC address of the UE in a non-cellular environment.

An embodiment of the present invention provides a non-cellular access device, including: the receiving module is used for receiving a cellular IP address and a UE identifier of the UE, which are sent by cellular access equipment or User Equipment (UE), wherein the cellular IP address of the UE is a network interconnection protocol IP address allocated by a cellular core network for the UE, and the UE identifier is a Media Access Control (MAC) address of the UE in a non-cellular state. The cellular access equipment is used as a convergence point and a shunt point of data transmission because the cellular access equipment establishes an IP route with the UE through an IP address of the UE, and the cellular access equipment is sensitive to quality change of a network link of a wireless local area network, so that the service continuity is ensured, the user experience is improved, and the service discontinuity caused by insensitivity to the quality change of the network link of the wireless local area network when the EPC is used as the convergence point and the shunt point is avoided.

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 internet protocol IP address of the UE sent by the UE, where the cellular IP address of the UE is an IP address allocated by the cellular core network for the UE.

And a processor 41, configured to perform multi-stream aggregated data transmission with the UE through a non-cellular access device through a cellular IP address of the UE.

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

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

a transmitter 42, configured to transmit the cellular IP address of the UE and the UE identity to the non-cellular access device after the receiver receives the cellular IP address of the UE transmitted by the UE.

Further, the transmitter 42 is also configured to transmit the IP address of the cellular access device to the UE.

Further, the transmitter 42 is further configured to transmit 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, 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, and the transport layer protocol is a transport control protocol TCP protocol, a user datagram protocol UDP protocol, a PDCP protocol, or an RLC protocol.

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

An embodiment of the present invention provides a cellular access device, including: the device comprises a receiver and a control unit, wherein the receiver is used for receiving a cellular network Interconnection Protocol (IP) address of User Equipment (UE) sent by the UE, and the cellular IP address of the UE is an IP address distributed to the UE by a cellular core network; and the processor is used for carrying out multi-stream converged data transmission with the UE through the cellular IP address of the UE and the non-cellular access equipment. The cellular access equipment is used as a convergence point and a shunt point of data transmission because the cellular access equipment establishes an IP route with the UE through an IP address of the UE, and the cellular access equipment is sensitive to quality change of a network link of a wireless local area network, so that the service continuity is ensured, the user experience is improved, and the service discontinuity caused by insensitivity to the quality change of the network link of the wireless local area network when the EPC is used as the convergence point and the shunt point is avoided.

Example 19

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

a transmitter 50, configured to transmit a cellular internet 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 for the UE.

And a processor 51, configured to perform multi-stream aggregated data transmission with the cellular access device through the non-cellular access device via the cellular IP address of the UE.

Further, the transmitter 50 is further configured to transmit the UE identity to the cellular access device, wherein the UE identity 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 using the UE identity.

Further, the transmitter 50 is further configured to transmit the cellular IP address of the UE and the UE identity to the non-cellular access device after the transmitter transmits the cellular IP address of the UE to the cellular access device.

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

a receiver 52 for receiving the 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, 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, and the transport layer protocol is a transmission control protocol TCP protocol, a user datagram protocol UDP protocol, a PDCP protocol, or an RLC protocol.

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

An embodiment of the present invention provides a UE, including: a transmitter, configured to transmit a cellular internet protocol IP address of a user equipment UE to a cellular access device, where the cellular IP address of the UE is an IP address allocated to the UE by a cellular core network; and the processor is used for carrying out multi-stream converged data transmission with the cellular access equipment through the cellular IP address of the UE and the non-cellular access equipment. The cellular access equipment is used as a convergence point and a shunt point of data transmission because the cellular access equipment establishes an IP route with the UE through an IP address of the UE, and the cellular access equipment is sensitive to quality change of a network link of a wireless local area network, so that the service continuity is ensured, the user experience is improved, and the service discontinuity caused by insensitivity to the quality change of the network link of the wireless local area network when the EPC is used as the convergence point and the shunt point is avoided.

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 identity of the UE sent by a cellular access device or a user equipment UE, where the cellular IP address of the UE is an internet protocol IP address allocated by a cellular core network for the UE, and the UE identity is a media access control MAC address of the UE in a non-cellular environment.

An embodiment of the present invention provides a non-cellular access device, including: the receiver is used for receiving a cellular IP address and a UE identifier of the UE, which are sent by cellular access equipment or User Equipment (UE), wherein the cellular IP address of the UE is a network interconnection protocol IP address allocated by a cellular core network for the UE, and the UE identifier is a Media Access Control (MAC) address of the UE in a non-cellular state. The cellular access equipment is used as a convergence point and a shunt point of data transmission because the cellular access equipment establishes an IP route with the UE through an IP address of the UE, and the cellular access equipment is sensitive to quality change of a network link of a wireless local area network, so that the service continuity is ensured, the user experience is improved, and the service discontinuity caused by insensitivity to the quality change of the network link of the wireless local area network when the EPC is used as the convergence point and the shunt point is avoided.

Example 21

An embodiment of the present invention provides a data transmission system, including the cellular access device according to any one of embodiments 15, the UE according to any one of embodiments 16, and the cellular access device according to embodiment 17. The cellular access equipment is used as a convergence point and a shunt point of data transmission because the cellular access equipment establishes an IP route with the UE through an IP address of the UE, and the cellular access equipment is sensitive to quality change of a network link of a wireless local area network, so that the service continuity is ensured, the user experience is improved, and the service discontinuity caused by insensitivity to the quality change of the network link of the wireless local area network when the EPC is used as the convergence point and the shunt point is avoided.

Example 22

An embodiment of the present invention provides a data transmission system, including the cellular access device according to any one of embodiments 18, the UE according to any one of embodiments 19, and the cellular access device according to embodiment 20. The cellular access equipment is used as a convergence point and a shunt point of data transmission because the cellular access equipment establishes an IP route with the UE through an IP address of the UE, and the cellular access equipment is sensitive to quality change of a network link of a wireless local area network, so that the service continuity is ensured, the user experience is improved, and the service discontinuity caused by insensitivity to the quality change of the network link of the wireless local area network when the EPC is used as the convergence point and the shunt point is avoided.

It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a 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 stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

A method of data transmission, comprising:

the method comprises the steps that cellular access equipment receives a cellular network Interconnection Protocol (IP) address of User Equipment (UE) sent by the UE, wherein the cellular IP address of the UE is an IP address distributed to the UE by a cellular core network;

and performing multi-stream converged data transmission between the cellular access equipment and the UE through a non-cellular access equipment through a cellular IP address of the UE.
The data transmission method of claim 1, further comprising:

and the cellular access equipment receives a UE identifier sent by the UE, wherein the UE identifier is a Media Access Control (MAC) address of the UE in the non-cellular area.
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 comprises:

and the cellular access equipment sends the cellular IP address of the UE and the UE identification to the non-cellular access equipment.
A method for data transmission according to any one of claims 1-3, wherein the method further comprises:

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

the cellular access equipment sends a transport layer protocol and/or a port number to the UE, wherein the port number comprises the port number of the UE and the port number of the cellular access equipment, 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, 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 protocol data unit transmitted during the data transmission process of multi-stream convergence between the cellular access device and the UE via the non-cellular access device includes radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header, or a newly added adaptation layer header of the protocol data unit; 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;

if the rb information is the rb mapping value, the method further includes:

the cellular access equipment sends the radio bearer mapping relation between the radio bearer mapping value and the DRB ID or the LC ID to the UE;

if the radio bearer information is the ERAB ID, the method further comprises:

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

user Equipment (UE) sends a cellular network Interconnection Protocol (IP) address of the UE to cellular access equipment, wherein the cellular IP address of the UE is an IP address distributed to the UE by a cellular core network;

and performing multi-stream converged data transmission between the UE and the cellular access equipment through a non-cellular access equipment through a cellular IP address of the UE.
The data transmission method of claim 8, wherein the method further comprises:

the UE sends a UE identification to the cellular access equipment, wherein the UE identification is a Media Access Control (MAC) address of the UE in the non-cellular;

the UE accesses the non-cellular access device using the UE identity.
The 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 comprises:

and the UE sends the cellular IP address of the UE and the UE identification to the non-cellular access equipment.
The data transmission method according to any one of claims 8 to 10, characterized in that the method further comprises:

and the UE receives the IP address of the cellular access equipment sent by the cellular access equipment.
The data transmission method according to any one of claims 8 to 11, characterized in that the method further comprises:

the UE receives a transport layer protocol and/or a port number sent by the cellular access equipment, wherein the port number comprises the port number of the UE and the port number of the cellular access equipment, 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, 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 8 to 12, wherein the protocol data unit transmitted during the data transmission process of multi-stream convergence between the cellular access device and the UE via the non-cellular access device includes radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header, or a newly added adaptation layer header of the protocol data unit; 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;

if the rb information is the rb mapping value, the method further includes:

the UE receives a radio bearer mapping relationship between the radio bearer mapping value and the DRB ID or the LC ID sent by the cellular access equipment;

if the radio bearer information is the ERAB ID, the method further comprises:

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

the method comprises the steps that non-cellular access equipment receives a cellular network Interconnection Protocol (IP) address and a User Equipment (UE) identification of the UE, wherein the cellular IP address of the UE is an IP address distributed to the UE by a cellular core network, and the UE identification is a Media Access Control (MAC) address of the UE in the non-cellular access equipment.
A cellular access device, comprising:

the system comprises a receiving module, a sending module and a receiving module, wherein the receiving module is used for receiving a cellular network Interconnection Protocol (IP) address of User Equipment (UE) sent by the UE, and the cellular IP address of the UE is an IP address distributed to the UE by a cellular core network;

a processing module, configured to perform multi-stream aggregated data transmission with the UE via a non-cellular access device through a cellular IP address of the UE.
The cellular access device of claim 16, wherein the receiving module is further configured to receive a UE identity sent by the UE, wherein the UE identity is a media access control MAC address of the UE in the non-cell.
The cellular access device of claim 16 or 17, further comprising:

a sending module, configured to send the cellular IP address of the UE and the UE identifier to the non-cellular access device after the receiving module receives the cellular IP address of the UE sent by the UE.
The cellular access device of any of claims 16-18, wherein the sending module is further configured to send an IP address of the cellular access device to the UE.
The cellular access device of any one of claims 16-19, wherein 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 the port number of the UE and the port number of the cellular access device, 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, 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 of claims 16-20, wherein a protocol data unit transmitted during data transmission for multi-stream convergence between the cellular access device and the UE via a non-cellular access device includes radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header, or a newly added adaptation layer header of the protocol data unit; 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 send the radio bearer mapping relationship between the radio bearer mapping value and the DRB ID or the LC ID to the UE if the radio bearer information is the radio bearer mapping value; and if the radio bearer information is the ERAB ID, sending the radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID to the UE.
The cellular access device of claim 21, wherein the IP header, the PDCP header, the extended PDCP header, or the added adaptation layer header further comprises: priority information of a logical channel corresponding to the LC ID, priority information of a data radio bearer corresponding to the DRB ID, priority information of a radio bearer mapping value corresponding to the radio bearer mapping value, or priority information of a radio access bearer corresponding to the ERAB ID.
A UE, comprising:

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

and the processing module is used for carrying out multi-stream converged data transmission between the cellular access equipment and the non-cellular access equipment through the cellular IP address of the UE.
The UE of claim 23,

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

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

a receiving module, configured to receive the IP address of the cellular access device 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 number includes a port number of the UE and a port number of the cellular access device, 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, 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 UE according to any of claims 23-27, wherein a protocol data unit transmitted during data transmission for multiflow aggregation between the cellular access device and the UE via a non-cellular access device comprises radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header, or a newly added adaptation layer header of the protocol data unit; 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 receiving module is further configured to receive a radio bearer mapping relationship between the radio bearer mapping value and the DRBID or the LC ID sent by the cellular access device if the radio bearer information is the radio bearer mapping value; and if the radio bearer information is the ERAB ID, receiving the radio bearer mapping relationship between the ERAB ID and the DRB ID or the LC ID sent by the cellular access equipment.
The UE of claim 28, wherein the IP header, the PDCP header, the extended PDCP header, or the added adaptation layer header further comprises: priority information of a logical channel corresponding to the LC ID, priority information of a data radio bearer corresponding to the DRB ID, priority information of a radio bearer mapping value corresponding to the radio bearer mapping value, or priority information of a radio access bearer corresponding to the ERAB ID.
A non-cellular access device, comprising:

the receiving module is used for receiving a cellular IP address and a UE identifier of the UE, which are sent by cellular access equipment or User Equipment (UE), wherein the cellular IP address of the UE is a network interconnection protocol IP address allocated by a cellular core network for the UE, and the UE identifier is a Media Access Control (MAC) address of the UE in the non-cellular area.
A cellular access device, comprising:

the system comprises a receiver and a control unit, wherein the receiver is used for receiving a cellular network Interconnection Protocol (IP) address of User Equipment (UE) sent by the UE, and the cellular IP address of the UE is an IP address distributed to the UE by a cellular core network;

a processor, configured to perform multi-stream aggregated data transmission with the UE via a non-cellular access device through a cellular IP address of the UE.
The cellular access device of claim 31, wherein the receiver is further configured to receive a UE identity sent by the UE, wherein the UE identity is a media access control MAC address of the UE in the non-cell.
The cellular access device of claim 31 or 32, further comprising:

a transmitter, configured to send the cellular IP address of the UE and the UE identity to the non-cellular access device after the receiver receives the cellular IP address of the UE sent by the UE.
The cellular access device of any of claims 31-33, wherein the transmitter is further configured to transmit an IP address of the cellular access device to the UE.
The cellular access device of any one of claims 31-34, wherein the transmitter is further configured to transmit a transport layer protocol and/or a 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, 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, 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 of any one of claims 31 to 35, wherein a protocol data unit transmitted during data transmission for multi-stream convergence between the cellular access device and the UE via a non-cellular access device includes radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header, or a newly added adaptation layer header of the protocol data unit; 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 send the radio bearer mapping value and the DRB ID or the LC ID to the UE if the radio bearer information is the radio bearer mapping value; and if the radio bearer information is the ERAB ID, sending the radio bearer mapping relationship between the ERAB ID and the DRB ID or the LCID to the UE.
The cellular access device of claim 36, wherein the IP header, the PDCP header, the extended PDCP header, or the added adaptation layer header further comprises: priority information of a logical channel corresponding to the LC ID, priority information of a data radio bearer corresponding to the DRB ID, priority information of a radio bearer mapping value corresponding to the radio bearer mapping value, or priority information of a radio access bearer corresponding to the ERAB ID.
A UE, comprising:

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

and the processor is used for carrying out multi-stream converged data transmission between the cellular access equipment and the non-cellular access equipment through the cellular IP address of the UE.
The UE of claim 38,

the transmitter is further configured to transmit a UE identity to the cellular access device, where the UE identity 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 using the UE identity.
The UE of claim 38 or 39, wherein the transmitter is further configured to transmit the cellular IP address of the UE and the UE identity to the non-cellular access device after the transmitter transmits the cellular IP address of the UE to the cellular access device.
The UE of any one of claims 38-40, wherein the UE further comprises:

a receiver configured to receive the IP address of the cellular access device 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 number includes a port number of the UE and a port number of the cellular access device, 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, 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 UE of any one of claims 38-42, wherein a protocol data unit transmitted during data transmission for multi-stream convergence between the cellular access device and the UE via a non-cellular access device comprises radio bearer information; the radio bearer information is located in an IP header, a PDCP header, an extended PDCP header, or a newly added adaptation layer header of the protocol data unit; 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 receive a radio bearer mapping relationship between the radio bearer mapping value and the DRBID or the LC ID sent by the cellular access device if the radio bearer information is the radio bearer mapping value; and if the radio bearer information is the ERAB ID, receiving the radio bearer mapping relationship between the ERAB ID and the DRB ID or the LC ID sent by the cellular access equipment.
The UE of claim 43, wherein the IP header, the PDCP header, the extended PDCP header, or the newly added adaptation layer header further comprises: priority information of a logical channel corresponding to the LC ID, priority information of a data radio bearer corresponding to the DRB ID, priority information of a radio bearer mapping value corresponding to the radio bearer mapping value, or priority information of a radio access bearer corresponding to the ERAB ID.
A non-cellular access device, comprising:

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