WO2015062063A1

WO2015062063A1 - Data transmission method, apparatus and system

Info

Publication number: WO2015062063A1
Application number: PCT/CN2013/086398
Authority: WO
Inventors: 戴明增; 曾清海
Original assignee: 华为技术有限公司
Priority date: 2013-11-01
Filing date: 2013-11-01
Publication date: 2015-05-07
Also published as: CN104982062A; CN104982062B

Abstract

The present invention provides a data transmission method, apparatus and system, which makes a base station freely determine an offloading policy and improves the user experience. The method is implemented by a base station in a communications system. The communications system also comprises a wireless local area network access point (WLAN AP) and a user equipment. A bearer used for transmitting data of the user equipment is disposed between the base station and a gateway device. A general packet radio service tunneling protocol (GTP) tunnel is disposed between the base station and the WLAN AP. The method comprises: determining a channel bandwidth used for communication between a user equipment and a WLAN AP; and transmitting, by the WLAN AP and the user equipment, target data through the GTIP tunnel according to the channel bandwidth, the target data being all or part of data on the bearer.

Description

Method, device and system for transmitting data

The present invention relates to the field of communications and, more particularly, to a method, apparatus and system for transmitting data. Background technique

With the rapid development of smart phones, more and more mobile communication terminals have integrated communication modules of the wireless local area network (WLAN). On the other hand, as the demand for mobile broadband continues to increase, existing (e.g., wireless cellular) communication systems are under increasing pressure from data traffic. A feasible method is to integrate the wireless cellular technology and the WLAN technology, and use the WLAN to offload the data traffic of the mobile cellular communication system, thereby greatly improving the experience of the cellular system user.

At present, a communication technology is known in which a user equipment (UE, User Equipment) has accessed an evolved packet core network (EPC, Evolved Packet Core) through a base station, and through a packet data network gateway (PDN-GW, Public After the Data Network-Gateway is connected to the Public Data Network (PDN), the UE can access the Trusted Wireless Local Area Networks (TWAN) through, for example, a trusted wireless office or a network access network (TWAN). The EPC, and the TWAN can select a certain PDN-GW to create a PDN connection, thereby realizing the integration of the wireless cellular technology and the WLAN technology.

However, in this technology, since the convergence of the offload is in the EPC, the base station cannot determine the offload traffic autonomously, and the effect of the network state between the user equipment and the TWAN may occur, and the expected offloading effect cannot be achieved. In addition, there is no guarantee that the PDN-GW used in establishing a PDN connection through the WLAN is the same as the PDN-GW used in establishing a PDN connection through the base station, which cannot guarantee service continuity and seriously affect the user experience.

Therefore, it is desirable to provide a technique that enables a base station to autonomously determine a traffic split, improve a shunting effect, and improve a user experience. Summary of the invention

The embodiments of the present invention provide a method, a device, and a system for transmitting data, which enable a base station to autonomously determine a traffic distribution, improve a traffic distribution effect, and improve a user experience. In a first aspect, a method for transmitting data is provided, which is performed by a base station in a communication system, the communication system further comprising a WLAN access point WLAN AP and a user equipment, where the base station and the gateway device are provided for transmission a data packet of the user equipment, a general packet radio service tunneling protocol GTP tunnel between the base station and the WLAN AP, the method includes: determining a channel bandwidth used by the user equipment to communicate with the WLAN AP; Channel bandwidth, through which the target data is transmitted by the WLAN AP and the user equipment, wherein the target data is all or part of data on the bearer.

With reference to the first aspect, in a first implementation manner of the first aspect, the determining a channel bandwidth used by the user equipment to communicate with the WLAN AP includes: receiving the user equipment or the first channel sent by the WLAN AP The bandwidth indication information, where the first channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP, where the channel bandwidth is determined by the user equipment after consulting with the WLAN AP; The first channel bandwidth indication information determines a channel bandwidth used by the user equipment to communicate with the WLAN AP.

With reference to the first aspect and the foregoing implementation manner, in a second implementation manner of the first aspect, the determining, by the user equipment, the channel bandwidth used for the communication between the user equipment and the WLAN AP, a first capability information indicating a channel bandwidth that the user equipment can support; receiving second capability information that is sent by the WLAN AP to indicate a channel bandwidth that the WLAN AP can support; according to the first capability information and the second capability information , determining the channel bandwidth used by the user equipment to communicate with the WLAN AP.

With reference to the first aspect and the foregoing implementation manner, in a third implementation manner of the first aspect, the transmitting, by using the WLAN AP, the target data by using the WLAN AP, according to the channel bandwidth, includes: The user equipment sends the second channel bandwidth indication information, where the second channel bandwidth indication information is used to indicate the channel bandwidth used by the user equipment to communicate with the WLAN AP, so that the user equipment according to the second channel bandwidth indication information Determining the uplink target data, where the target uplink data is all or part of the uplink data on the bearer; receiving, by the GTP tunnel, the uplink target data sent by the WLAN AP, where the uplink target data is sent by the user equipment to the WLAN AP.

With reference to the first aspect and the foregoing implementation manner, in a fourth implementation manner of the first aspect, the transmitting, by using the WLAN AP, the target data by using the WLAN AP, according to the channel bandwidth, includes: Determining downlink target data, wherein the target downlink data is all or part of downlink data on the bearer; and the GTP tunnel is used to The WLAN AP sends the downlink target data, so that the WLAN forwards the downlink target data to the user equipment.

With reference to the first aspect and the foregoing implementation manner, in a fifth implementation manner of the first aspect, the method further includes: receiving channel switching information sent by the user equipment or the WLAN AP, where the channel switching information is used to indicate the user The channel used for the communication between the device and the WLAN AP is switched and the time for completing the handover; and the transmission of the target data by the WLAN AP and the user equipment is performed according to the bandwidth of the channel, including: The channel bandwidth and the channel switching indication information are used to perform target data transmission with the user equipment through the WLAN AP.

With reference to the first aspect and the foregoing implementation manner, in a sixth implementation manner of the first aspect, the base station has a first base station side protocol stack and a second base station side protocol stack, where the first base station side protocol stack is used in the base station The side implements data processing for communication with the user equipment, and the second base station side protocol stack is configured to implement data processing for communication with the WLAN AP at the base station side, where the second base station side protocol stack and the first At least one protocol layer of the base station side protocol stack is connected, and the target data is transmitted by the WLAN AP and the user equipment according to the channel bandwidth, including: according to the channel bandwidth, the first base station side At least one layer of the protocol stack and the second base station side protocol stack, through which the target data is transmitted by the WLAN AP and the user equipment.

In a second aspect, a method for transmitting data is provided, which is performed by a WLAN access point WLAN AP in a communication system, where the communication system further includes a base station and a user equipment, where the base station and the gateway device are provided for transmission. a data packet of the user equipment, the base station and the WLAN AP are provided with a general packet radio service tunneling protocol GTP tunnel, the method includes: transmitting, by the GTP tunnel, target data of the user equipment with the base station, where The target data is determined according to the channel bandwidth used by the user equipment to communicate with the WLAN AP, and the target data is all or part of the data on the bearer.

With reference to the second aspect, in a first implementation manner of the second aspect, before the target data of the user equipment is transmitted by the base station, the method further includes: receiving, by the user equipment, First capability information of a channel bandwidth that the user equipment can support; determining a channel bandwidth used for communication with the user equipment according to a channel bandwidth that the WLAN AP can support and the first capability information; and transmitting a first channel bandwidth to the base station Instructing information, where the first channel bandwidth indication information is used to indicate a letter used by the user equipment to communicate with the WLAN AP Channel bandwidth.

With the second aspect and the foregoing implementation manner, in a second implementation manner of the second aspect, before the target data of the user equipment is transmitted to the base station by using the GTP tunnel, the method further includes: sending, to the base station, a second capability information indicating a channel bandwidth that the WLAN AP can support, so that the base station determines, according to the first capability information and the second capability information, a channel bandwidth used by the user equipment to communicate with the WLAN AP, where The first capability indication information is sent by the user to the base station, and is used to indicate a channel bandwidth that the user equipment can support.

With reference to the second aspect and the foregoing implementation manner, in a third implementation manner of the second aspect, the method further includes: sending, to the base station, channel switching information, where the channel switching information is used to indicate the user equipment and the WLAN AP The channel used for inter-communication switches and the time at which the handover is completed.

With reference to the second aspect and the foregoing implementation manner, in a fourth implementation manner of the second aspect, the WLAN AP has a first WLAN AP side protocol stack and a second WLAN AP side protocol stack, and the first WLAN AP side protocol stack Data processing for implementing communication with the base station on the WLAN AP side, the second WLAN AP side protocol stack is configured to implement data processing for communication with the user equipment on the WLAN AP side, and the GTP is transmitted through the GTP The tunnel, the target data of the user equipment is transmitted by the base station, and the data obtained from the base station is input to the first WLAN AP side protocol stack, and the data output from the first WLAN AP side protocol stack is transmitted to the second The WLAN AP side protocol stack sends data output from the second WLAN AP side protocol stack to the user equipment; or inputs data acquired from the user equipment to the second WLAN AP side protocol stack, from the second WLAN The data output by the AP side protocol stack is transmitted to the first WLAN AP side protocol stack, and the data output from the first WLAN AP side protocol stack is sent to the base station.

In a third aspect, a method for transmitting data is provided, which is performed by a user equipment in a communication system, the communication system further comprising a base station and a wireless local area network access point WLAN AP, where the base station and the gateway device are provided for transmission a general packet radio service tunneling protocol GTP tunnel is set up between the base station and the WLAN AP, and the method includes: transmitting, by using the WLAN AP, target data transmission, where the target data is It is determined according to a channel bandwidth used by the user equipment to communicate with the WLAN AP, and the target data is transmitted between the WLAN AP and the base station via the GTP tunnel, and the target data is all or part of data.

In conjunction with the third aspect, in a first implementation of the third aspect, The method further includes: receiving, by the WLAN AP, second capability information that is sent by the WLAN AP to indicate a channel bandwidth that the WLAN AP can support; according to a channel bandwidth that the user equipment can support, and the first The second capability information is used to determine the channel bandwidth used for communication with the WLAN AP; the first channel bandwidth indication information is sent to the base station, where the first channel bandwidth indication information is used to indicate communication between the user equipment and the WLAN AP The channel bandwidth used.

With the third aspect and the foregoing implementation manner, in a second implementation manner of the third aspect, before the transmitting, by the WLAN, the target data is transmitted by the base station, the method further includes: sending, by the base station, an indication The first capability information of the channel bandwidth that the user equipment can support, so that the base station determines, according to the first capability information and the second capability information, a channel bandwidth used by the user equipment to communicate with the WLAN AP, where The second capability indication information is sent by the WLAN AP to the base station, and is used to indicate a channel bandwidth that the WLAN AP can support.

With reference to the third aspect and the foregoing implementation manner, in a third implementation manner of the third aspect, the transmitting, by the WLAN AP, the target data is transmitted by the base station, including: receiving, by the base station, the second channel bandwidth indication information The second channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP. The uplink target data is determined according to the second channel bandwidth indication information, where the target uplink data is the bearer. All or part of the uplink data; sending the uplink target data to the WLAN AP, so that the WLAN AP sends the uplink target data to the base station via the GTP tunnel.

With reference to the third aspect and the foregoing implementation manner, in a fourth implementation manner of the third aspect, the method further includes: sending, to the base station, channel switching information, where the channel switching information is used to indicate the user equipment and the WLAN AP The channel used for inter-communication switches and the time at which the handover is completed.

With reference to the third aspect and the foregoing implementation manner, in a fifth implementation manner of the third aspect, the user equipment has a first user equipment side protocol stack and a second user equipment side protocol stack, and the first user equipment side protocol stack Data processing for implementing communication with the base station on the user equipment side, the second user equipment side protocol stack is configured to implement data processing for communication with the WLAN AP on the user equipment side, where the second The user equipment side protocol stack is connected to the at least one protocol layer of the first user equipment side protocol stack, and the target data transmission is performed with the base station via the WLAN AP, including: using at least the first user equipment side protocol stack A layer and the second user equipment side protocol stack, through which the target data is transmitted, via the WLAN AP. A fourth aspect provides a device for transmitting data, where a bearer for transmitting data of a user equipment is provided between the device and the gateway device, and the device is provided with a general packet radio between the device and the wireless local area network access point WLAN AP. The service tunneling protocol GTP tunnel, the device includes: a first base station side protocol stack, configured to implement data processing for communication with the user equipment; and a second base station side protocol stack, configured to implement data communication with the WLAN AP Processing, wherein the second base station side protocol stack is connected to at least one protocol layer of the first base station side protocol stack; the determining unit is configured to determine a channel bandwidth used for communication between the user equipment and the WLAN AP; And the second base station side protocol stack is configured to perform, according to the channel bandwidth determined by the determining unit, the target data is transmitted by using the WLAN AP and the user equipment, where the target data is the bearer. All or part of the data.

With reference to the fourth aspect, in a first implementation manner of the fourth aspect, the transceiver unit is further configured to receive the first channel bandwidth indication information that is sent by the user equipment or the WLAN AP, where the first channel bandwidth indication information is used by The channel bandwidth is used to indicate the communication between the user equipment and the WLAN AP, and the channel bandwidth is determined by the user equipment to negotiate with the WLAN AP. The determining unit is specifically configured to determine, according to the first channel bandwidth indication information, The channel bandwidth used by the user equipment to communicate with the WLAN AP.

With reference to the fourth aspect and the foregoing implementation manner, in a second implementation manner of the fourth aspect, the transceiver unit is further configured to receive, by the user equipment, first capability information that is used to indicate a channel bandwidth that the user equipment can support And receiving the second capability information that is sent by the WLAN AP to indicate the channel bandwidth that the WLAN AP can support; the determining unit is specifically configured to determine, according to the first capability information and the second capability information, the user equipment and the The channel bandwidth used for communication between WLAN APs.

With reference to the fourth aspect and the foregoing implementation manner, in a third implementation manner of the fourth aspect, the transceiver unit is further configured to send, to the user equipment, second channel bandwidth indication information, where the second channel bandwidth indication information is used to indicate The channel bandwidth used by the user equipment to communicate with the WLAN AP, so that the user equipment determines the uplink target data according to the second channel bandwidth indication information, where the target uplink data is all or part of the uplink on the bearer. The receiving unit is configured to receive the uplink target data sent by the WLAN AP by using the GTP tunnel, where the uplink target data is sent by the user equipment to the WLAN AP.

With reference to the fourth aspect and the foregoing implementation manner, in a fourth implementation manner of the fourth aspect, the determining unit is further configured to determine, according to the channel bandwidth, downlink target data, where the target downlink number According to all or part of the downlink data on the bearer, the transceiver unit is configured to send the downlink target data to the WLAN AP via the GTP tunnel, so that the WLAN AP forwards the downlink target data to the user equipment.

With reference to the fourth aspect and the foregoing implementation manner, in a fifth implementation manner of the fourth aspect, the transceiver unit is further configured to receive channel switching information sent by the user equipment or the WLAN AP, where the channel switching information is used to indicate the The channel used for the communication between the user equipment and the WLAN AP is switched and the time for completing the handover; the transceiver unit is configured to use the WLAN AP and the GTP tunnel according to the channel bandwidth and the channel switching indication information. The user equipment transmits the target data.

In a fifth aspect, an apparatus for transmitting data is provided, where a GTP tunnel of a general packet radio service tunneling protocol is provided between the device and the base station, and between the base station and the gateway device, a user equipment is provided. For carrying the data, the device includes: a first WLAN AP side protocol stack, configured to implement data processing for communication with the base station; and a second WLAN AP side protocol stack, connected to the first WLAN AP side protocol stack, for a data processing for the communication with the user equipment; the transceiver unit is connected to the first WLAN AP side protocol stack and the second WLAN AP side protocol stack, and configured to transmit the user equipment to the base station via the GTP tunnel Target data, wherein the target data is determined according to a channel bandwidth used by the user equipment to communicate with the WLAN AP, and the target data is all or part of data on the bearer.

With reference to the fifth aspect, in a first implementation manner of the fifth aspect, the transceiver unit is further configured to receive, by the user equipment, first capability information that is used to indicate a channel bandwidth that the user equipment can support; a determining unit, configured to determine, according to a channel bandwidth that the WLAN AP can support and the first capability information, a channel bandwidth used for communication with the user equipment; and the transceiver unit is further configured to send the first channel bandwidth to the base station The indication information, where the first channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP.

With reference to the fifth aspect and the foregoing implementation manner, in a second implementation manner of the fifth aspect, the transceiver unit is further configured to send, to the base station, second capability information that is used to indicate a channel bandwidth that the WLAN AP can support, so that Determining, by the base station, a channel bandwidth used by the user equipment to communicate with the WLAN AP according to the first capability information and the second capability information, where the first capability indication information is sent by the user to the base station, Indicates the channel bandwidth that the user equipment can support. With reference to the fifth aspect and the foregoing implementation manner, in a third implementation manner of the fifth aspect, the transceiver unit is further configured to send channel switching information to the base station, where the channel switching information is used to indicate the user equipment and the WLAN AP The channel used for communication between the switching occurs and the time to complete the switching.

The sixth aspect provides an apparatus for transmitting data, where the apparatus includes: a first user equipment side protocol stack, configured to implement data processing for communication with a base station, where the base station and the gateway device are provided with a common packet radio service tunneling protocol (GTP tunnel) is provided between the base station and the WLAN access point WLAN AP, and a second user equipment side protocol stack is used to implement the bearer between the base station and the WLAN AP. Data processing of the communication, wherein the second user equipment side protocol stack is connected to at least one protocol layer of the first user equipment side protocol stack; the transceiver unit is connected to the second user equipment side protocol stack, and is configured to be connected to the second user equipment side protocol stack. The AP performs the transmission of the target data with the base station, where the target data is determined according to a channel bandwidth used by the user equipment to communicate with the WLAN AP, where the target data is between the WLAN AP and the base station. The target data is transmitted by the GTP tunnel, and all or part of the data on the bearer.

With reference to the sixth aspect, in a first implementation manner of the sixth aspect, the transceiver unit is further configured to receive second capability information that is sent by the WLAN AP to indicate a channel bandwidth that the WLAN AP can support; a determining unit, configured to determine, according to a channel bandwidth that the user equipment can support and the second capability information, a channel bandwidth used for communication with the WLAN AP; the transceiver unit is further configured to send a first channel bandwidth indication to the base station Information, where the first channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP.

With reference to the sixth aspect and the foregoing implementation manner, in a second implementation manner of the sixth aspect, the transceiver unit is further configured to send, to the base station, first capability information that is used to indicate a channel bandwidth that the user equipment can support, so that The base station determines, according to the first capability information and the second capability information, a channel bandwidth used by the user equipment to communicate with the WLAN AP, where the second capability indication information is sent by the WLAN AP to the base station, Used to indicate the channel bandwidth that the WLAN AP can support.

With reference to the sixth aspect and the foregoing implementation manner, in a third implementation manner of the sixth aspect, the transceiver unit is further configured to receive second channel bandwidth indication information that is sent by the base station, where the second channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP; the apparatus further includes: a determining unit, configured to determine uplink target data according to the second channel bandwidth indication information, where the target uplink data is on the bearer All or part of the uplink data; The unit is specifically configured to send the uplink target data to the WLAN AP, so that the WLAN AP sends the uplink target data to the base station via the GTP tunnel.

With reference to the sixth aspect and the foregoing implementation manner, in a fourth implementation manner of the sixth aspect, the transceiver unit is further configured to send channel switching information to the base station, where the channel switching information is used to indicate the user equipment and the WLAN AP The channel used for communication between the switching occurs and the time to complete the switching.

The seventh aspect provides a system for transmitting data, where the system includes: a base station, and a bearer between the base station and the gateway device, configured to transmit data of the user equipment, and the base station and the wireless local area network access point WLAN AP a general packet radio service tunneling protocol GTP tunnel is configured to determine a channel bandwidth used for communication between the user equipment and the WLAN AP, and according to the channel bandwidth, the WLAN AP and the user equipment are performed by using the WLAN AP according to the channel bandwidth. The transmission of the target data, wherein the target data is all or part of the data on the bearer; the WLAN AP is configured to transmit target data of the user equipment with the base station via the GTP tunnel, where the target data is according to the user The target data is all or part of the data on the bearer determined by the channel bandwidth used by the device to communicate with the WLAN AP; the user equipment is configured to perform target data transmission with the base station via the WLAN AP, where The target data is based on the channel bandwidth used by the user equipment to communicate with the WLAN AP. Of the target data between the WLAN AP is transmitting with the base station via the GTP tunnel, the target data is data on all or part of the carrier.

The method, device, and system for transmitting data according to the embodiment of the present invention, after the base station determines that the data of the UE needs to be offloaded by the WLAN AP, and transmits the data of the UE (including the uplink data or the downlink data) between the GTP tunnel and the WLAN AP. ), the shunt anchor point can be located at the base station, and the channel bandwidth used by the user equipment to communicate with the WLAN AP is determined by the base station, so that the base station can determine the offload traffic according to the channel bandwidth, thereby improving the offloading effect, and, due to the WLAN The AP offloaded data arrives at the gateway device via the base station, and can ensure that the gateway device used when establishing the communication connection through the WLAN is the same as the gateway device used when establishing the communication connection through the base station, thereby ensuring service continuity and improving the user experience. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description It is merely some embodiments of the present invention, and those skilled in the art can obtain other drawings according to the drawings without any creative work.

1 is a schematic diagram showing a configuration structure of each protocol stack in each device according to an embodiment of the present invention. 2a is a schematic diagram showing an example of a method of aggregation of protocol stacks in a base station according to an embodiment of the present invention, and FIG. 2b is a schematic diagram showing another example of a method of aggregation of protocol stacks in a base station according to an embodiment of the present invention, and FIG. 2c is a diagram showing the present embodiment. A schematic diagram of still another example of the aggregation mode of each protocol stack in the base station according to the embodiment of the present invention, and FIG. 2d is a schematic diagram showing still another example of the aggregation mode of each protocol stack in the base station according to the embodiment of the present invention.

3a is a schematic diagram showing an example of a method for aggregating protocol stacks in a user equipment according to an embodiment of the present invention, and FIG. 3b is a schematic diagram showing another example of a method for aggregating protocol stacks in a user equipment according to an embodiment of the present invention. FIG. A schematic diagram showing still another example of the aggregation mode of each protocol stack in the user equipment according to the embodiment of the present invention, and FIG. 3d is a schematic diagram showing still another example of the aggregation mode of each protocol stack in the user equipment according to the embodiment of the present invention.

4 is a schematic flow chart of a method of transmitting data according to an embodiment of the present invention.

FIG. 5 is a schematic interaction diagram of a method for transmitting downlink data according to an embodiment of the present invention. FIG. 6 is a schematic interaction diagram of a method for transmitting uplink data according to an embodiment of the present invention. FIG. 7 is a schematic flowchart of a method of transmitting data according to another embodiment of the present invention. FIG. 8 is a schematic flowchart of a method of transmitting data according to still another embodiment of the present invention. 9 is a schematic block diagram of an apparatus for transmitting signals in accordance with an embodiment of the present invention.

FIG. 10 is a schematic block diagram of an apparatus for transmitting a signal according to another embodiment of the present invention.

11 is a schematic block diagram of an apparatus for transmitting a signal according to still another embodiment of the present invention.

FIG. 12 is a schematic structural diagram of an apparatus for transmitting a signal according to an embodiment of the present invention.

FIG. 13 is a schematic structural diagram of an apparatus for transmitting a signal according to another embodiment of the present invention. FIG. 14 is a schematic structural diagram of an apparatus for transmitting a signal according to still another embodiment of the present invention. Figure 15 is a schematic architectural diagram of a system for transmitting signals in accordance with an embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention. The technical solution of the present invention can be applied to various communication systems, such as: Global System of Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access ( WCDMA, Wideband Code Division Multiple Access Wireless), General Packet Radio Service (GPRS), Long Term Evolution (LTE), etc., and the present invention is not limited.

In the embodiment of the present invention, a user equipment (UE, User Equipment), which may also be called a mobile terminal (Mobile Terminal), a mobile user equipment, etc., may be connected to a radio access network (for example, RAN, Radio Access Network) Or communicating with multiple core networks, the user equipment may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, may be portable, pocket-sized, handheld, built-in or Mobile devices onboard, which exchange language and/or data with the radio access network, are not limited in the present invention.

The base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (Node B) in WCDMA, or may be an evolved base station in LTE (eNB or e-Node B, evolutional Node B) The invention is not limited.

In the embodiment of the present invention, in order to offload data of the base station, in the communication system of the present invention, a wireless local area network access point (WLAN AP) needs to be set, and the wireless local area network access point is It may be, for example, an access point in Wireless Fidelity (WiFi), which is not limited by the present invention. Hereinafter, for ease of understanding and explanation, the cartridge is called AP.

In the embodiment of the present invention, when downlinking, the base station may transmit data that needs to be offloaded to the AP, and send the data to the UE through the AP. In the uplink, the UE may send the data that needs to be offloaded to the AP, and send the data to the base station through the AP. Therefore, in the embodiment of the present invention, a protocol stack for implementing communication between each other needs to be configured in the base station and the AP. Similarly, a protocol stack for implementing communication between each other needs to be configured in the UE and the AP.

1 is a schematic diagram showing a configuration structure of each protocol stack in each device according to an embodiment of the present invention. As shown in FIG. 1 , in the embodiment of the present invention, a general packet radio service (GTP) communication method may be used between a base station and an AP to perform communication (specifically, transmission). The offloaded data), therefore, in the base station and the AP, a protocol stack for implementing the GTP communication can be set.

As shown in FIG. 1, in the embodiment of the present invention, a wireless local area network can be adopted between the UE and the AP. In the communication mode, communication (specifically, transmission of the offloaded data) is performed, and therefore, in the UE, a protocol stack for implementing the wireless local area network communication, for example, a WiFi protocol stack, may be set. Since the UE and the AP adopt the WLAN communication mode, the time-frequency resources used by the WLAN communication mode are different from the time-frequency resources used for communication between the UE and the base station, thereby enabling offloading of the base station.

Next, the configuration of the protocol stack in the base station will be described.

Optionally, the base station has a first base station side protocol stack and a second base station side protocol stack, where the first base station side protocol stack is configured to implement data processing for communication with the user equipment at the base station side, where the second base station side The protocol stack is configured to implement data processing for communication with the WLAN AP on the base station side, where the second base station side protocol stack is connected to at least one protocol layer of the first base station side protocol stack, and the base station is connected to the GTP tunnel Transmitting the target data with the user equipment by using the WLAN AP, including:

The base station transmits the target data to the user equipment through the WLAN AP through the GTP tunnel through at least one layer of the first base station side protocol stack and the second base station side protocol stack.

Specifically, the base station includes a first base station side protocol stack and a second base station side protocol stack.

As the first base station side protocol stack, a base station protocol stack may be mentioned. It should be understood that the base station protocol stack is only an exemplary description, and the present invention is not limited thereto, and other base stations (or core network access nodes) can be used. The protocol stack that implements the communication between the base station and the user equipment on the side falls within the protection scope of the present invention. And, the communication between the base station and the user equipment includes communication between a core network access node capable of performing a base station function and a user equipment, for example, a relay node (RN, Relay Node) and a user equipment capable of communicating with the user equipment. Communication between.

As the second base station side protocol stack, all or part of the protocol layer of the GTP protocol stack may be used, where the second base station side protocol stack may be directly aggregated on the at least one protocol layer of the first base station side protocol stack through the internal interface, or The second base station side protocol stack may be aggregated on the at least one protocol layer of the first base station side protocol stack by using an adaptation layer, and then the role of the adaptation layer is described in detail.

Therefore, in the uplink, since the data transmitted via the second base station side protocol stack needs to pass through at least one layer of the first base station side protocol stack before transmitting the core network (or the gateway device), the format of the data can be The data format converted to the communication between the existing base station and the gateway device, that is, the data format sent to the gateway device after processing (for example, format conversion processing) of at least one layer of the first base station side protocol stack.

And, when uplinking, if the first base station side protocol stack and the second base station side protocol stack are both If the data of the same UE is transmitted, the data transmitted via the first base station side protocol stack and the data transmitted via the second base station side protocol stack may be aggregated by using at least one protocol layer of the first base station side protocol stack, and then, The process is described in detail.

And, in the downlink, if the data of the same UE is transmitted by the first base station side protocol stack and the second base station side protocol stack, the at least one protocol layer of the first base station side protocol stack may be used to pass the first base station. The data transmitted by the side protocol stack and the data transmitted via the second base station side protocol stack are subjected to bearer differentiation and packet sequence number setting, and then the process will be described in detail.

Optionally, in the embodiment of the present invention, the at least one protocol layer of the first base station side protocol stack includes at least one of the following protocol layers:

Packet Data Convergence Protocol PDCP Layer, Radio Link Control RLC Layer or Media Access Control

MAC layer.

Specifically, in the embodiment of the present invention, some or all of the protocol layers of the GTP protocol stack may be used as the second base station side protocol stack, and in the embodiment of the present invention, the second base station side protocol stack may include a user plane. The protocol stack may also include a user plane protocol stack and a control plane protocol stack, and the present invention is not particularly limited. In the following, the second base station side protocol stack is used as an example of a user plane protocol stack (GTP-U protocol stack). Thus, for example, when the base station protocol stack is used as the first base station side protocol stack, the GTP- The U protocol stack needs to be aggregated in the user plane protocol stack of the base station.

In the embodiment of the present invention, a General Packet Radio Service Tunneling Protocol (GTP-U) is used for a Transport Protocol Data Unit (T-PDU, Transport PDU) between two nodes. Transmission. The Tunnel Endpoint Identifier (TEID) in the GTP header is used to indicate the tunnel to which the T-PDU belongs, so that the GTP-U multiplexes and demultiplexes the packets at both ends of the tunnel. The TEID value used by the TEID field is obtained through negotiation. The GTP tunnel allows multiplexing of different users, different packet protocols, and different Quality of Service (QoS) levels. The T-PDU packet is encapsulated and transmitted in the G-PDU. The G-PDU packet consists of a GTP-U header and a T-PDU. The path protocol defines the path and the GTP-U header defines the tunnel. Multiple tunnels can be multiplexed onto one path. Here, the structure of the GTP-U protocol stack may be the same as or similar to the prior art, and the description thereof is omitted here to avoid redundancy. Hereinafter, the description of the same or similar cases will be omitted.

The user plane protocol stack of the base station mainly includes a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, a Media Access Control (MAC) layer, and a physical layer (MAC). PHY, Physical ) Floor. The PDCP layer is mainly used for compressing and decompressing/encrypting and decrypting information. The RLC layer is mainly used to implement related functions of automatic repeat request (ARQ), segmenting and cascading information or segmentation. The cascading information is mainly used for the selection of the transport format combination, and the related functions of scheduling and hybrid automatic repeat request ( HARQ, Hybrid Automatic Repeat Request) are implemented; the PHY layer is mainly used for providing the MAC layer and the upper layer. The information transmission service performs code modulation processing or demodulation decoding processing according to the selected transmission format combination. It should be noted that, since the transmission format of the second base station side protocol stack is different from the transmission format of the base station protocol stack, the code modulation process or the demodulation decoding process is also different, so that the second base station side protocol stack does not need to be aggregated in the base station protocol. The PHY layer of the stack.

Therefore, in the embodiment of the present invention, the second base station side protocol stack may be aggregated on any of the foregoing PDCP layer, RLC layer or MAC layer.

Optionally, in the embodiment of the present invention, the second base station side protocol stack may be directly connected to at least one protocol layer of the first base station side protocol stack by using an internal interface. Specifically, if the data transmitted between the base station and the AP does not need to perform (eg, format) conversion when passing through the second base station side protocol stack and the at least one protocol layer of the first base station side protocol stack, the The second base station side protocol stack is directly connected to at least one protocol layer in the first base station side protocol stack.

In the case where the user plane protocol stack (GTP-U protocol stack) of the GTP protocol stack is used as the second base station side protocol stack, and the user plane protocol stack of the base station protocol stack is used as the first base station side protocol stack, as an example Without limitation, for example, as shown in FIG. 2a, the GTP-U protocol stack may be aggregated in the PDCP layer of the base station protocol stack. For another example, as shown in Figure 2b, the GTP-U protocol stack can be aggregated at the RLC layer of the base station protocol stack. For another example, as shown in Figure 2c, the GTP-U protocol stack can be aggregated at the MAC layer of the base station protocol stack.

Optionally, the first base station side protocol stack includes a reordering layer, where the reordering layer is used to determine a location of the target data in all data on the bearer, where at least one protocol layer of the first base station side protocol stack is The reordering layer, and

The base station transmits the target data to the user equipment through the WLAN AP via the GTP tunnel, including:

The base station determines, by the reordering layer, the location of the downlink target data in the target data in all the downlink data on the bearer, and the reordering layer generates the first location indication information, where the first location indication information is used to indicate the downlink target The location of the data in all downlink data on the bearer;

The base station sends the first location indication information to the WLAN AP, so as to facilitate the user equipment root. And determining, according to the first location indication information forwarded by the WLAN AP, a location of the downlink target data in all downlink data on the bearer.

And sending, by the base station, the first location indication information to the WLAN AP, the method includes: the base station, by using the reordering layer, encapsulating the first location indication information and the downlink target data in a same data packet, and sending the information to the WLAN AP .

The base station obtains the second location indication information that is forwarded by the WLAN AP by using the reordering layer, where the second location indication information is used to indicate the location of the uplink target data in the target data in all uplink data on the bearer;

The base station determines, according to the second location indication information, a location of the uplink target data in all uplink data on the bearer, where the second location indication information is determined by the user equipment and sent to the WLAN AP.

And the base station obtains, by using the reordering layer, the second location indication information that is forwarded by the WLAN AP, including:

The base station obtains the second location indication information from the data packet encapsulating the uplink target data by using the reordering layer.

Specifically, in the embodiment of the present invention, in addition to all protocol stacks of the base station protocol stack (including the PDCP layer, the RLC layer, the MAC layer, and the PHY layer), the first base station side protocol stack may further have a protocol layer ( Reordering layer) to convert data transmitted via the second base station side protocol stack into a data format conforming to communication between the existing base station and the gateway device.

In the uplink, the same is transmitted by both the first base station side protocol stack and the second base station side protocol stack.

The data of the UE may be used to aggregate data transmitted via the first base station side protocol stack and data transmitted via the second base station side protocol stack through the reordering layer (or confirm the bearer of each data to sort according to the bearer) ), then, the process is described in detail.

In the downlink, the data of the same UE is transmitted by the first base station side protocol stack and the second base station side protocol stack, and the data transmitted via the first base station side protocol stack and the second base station side may be used by the reordering layer. The data transmitted by the protocol stack carries the bearer distinction and the packet sequence number setting, After that, the process will be described in detail.

In the case where the user plane protocol stack (GTP-U protocol stack) of the GTP protocol stack is used as the second base station side protocol stack, and the user plane protocol stack of the base station protocol stack is used as the first base station side protocol stack, as an example Without limitation, for example, as shown in FIG. 2d, the GTP-U protocol stack may be aggregated in a reordering layer of a base station protocol stack.

For example, the base station can obtain data from the core network and send it to the user equipment. The base station can connect to the core network by using the S1 interface, and can obtain data from the core network through the S1 interface, and then pass at least one protocol layer and GTP of the base station protocol stack. The -U protocol stack processes the data, and sends the processed data to the AP provided with the GTP protocol stack by means of GTP communication, so that the AP can transmit the data to the UE by using a wireless local area network communication method, and then This process is described in detail.

The base station can receive the data sent by the user equipment and send it to the core network as an example. The base station can connect to the core network by using the S1 interface, and the AP set with the GTP protocol stack can receive the data sent by the UE by using the wireless local area network communication mode, and can adopt The GTP communication method sends the data to the base station, and the base station can process the data through the GTP-U protocol stack and at least one protocol layer of the base station protocol stack, and send the processed data to the core network through the S1 interface, and then This process is described in detail.

Optionally, the second base station side protocol stack includes an adaptation layer, where the adaptation layer is configured to perform data conversion between the at least one protocol layer of the first base station side protocol stack and the second base station side protocol stack. Processing, the second base station side protocol stack is connected to the at least one protocol layer of the first base station side protocol stack by using the adaptation layer;

The base station transmits the target data to the user equipment through the WLAN AP through the GTP tunnel through at least one layer of the first base station side protocol stack and the second base station side protocol stack, including:

The base station inputs downlink target data to at least one protocol layer of the first base station side protocol stack, and converts, by using the adaptation layer, a data format of data output from at least one protocol layer of the first base station side protocol stack to the first The data format that can be identified by the second base station side protocol stack is transmitted to the second base station side protocol stack, and the data output from the second base station side protocol stack is sent to the WLAN AP via the GTP tunnel to be sent by the WLAN AP. Give the user device, or

The base station inputs data acquired from the WLAN AP via the GTP tunnel to the second base station side protocol stack, and the data format of the data output from the second base station side protocol stack by the adaptation layer And converting to a data format that is identifiable by the at least one protocol layer of the first base station side protocol stack, and transmitting the data format to the at least one protocol layer of the first base station side protocol stack, to obtain uplink target data of the user equipment.

Specifically, as shown in FIG. 2a to FIG. 2d, if data transmitted between the base station and the AP passes through the second base station side protocol stack and at least one protocol layer of the first base station side protocol stack, for example, , format) conversion, according to the format of the data output by the at least one protocol layer of the first base station side protocol stack and the format of the data output by the second base station side protocol stack, at least one protocol of the first base station side protocol stack Between the layer and the second base station side protocol stack, an adaptation layer (adaptive layer) for format conversion is added, for example, by way of example and not limitation, if the GTP-U protocol stack is aggregated on the PDCP layer of the base station protocol stack, The adaptation layer can be used to perform data conversion processing between the PDCP layer and the GTP-U protocol stack on the data. It should be understood that the above-described connection manners are merely illustrative, and the present invention is not limited thereto. If the GTP-U protocol stack is aggregated on the RLC layer of the base station protocol stack, the adaptation layer can be used to perform format conversion processing between the RLC layer and the GTP-U protocol stack.

For example, the base station can obtain data from the core network and send it to the user equipment. The base station can connect to the core network by using the S1 interface, and can obtain data from the core network through the S1 interface, and then pass through at least one protocol layer of the base station protocol stack. The layer and the GTP-U protocol stack process the data, and the processed data is sent to the AP provided with the GTP protocol stack by GTP communication, so that the AP can send the data to the wireless local area network communication mode. The UE, followed by a detailed description of the process.

The base station can receive the data sent by the user equipment and send the data to the core network as an example.

The S1 interface is connected to the core network, and the AP that is configured with the GTP protocol stack can receive the data sent by the UE by using the wireless LAN communication mode, and can send the data to the base station by using the GTP communication mode, and the base station can pass the GTP-U protocol stack. The at least one protocol layer of the adaptation layer and the base station protocol stack processes the data, and the processed data is sent to the core network through the S1 interface, and then the process is described in detail.

In this way, by setting the adaptation layer, it is possible to ensure the conversion of data between the GTP-U protocol stack and the base station protocol stack, and the configuration of the GTP-U protocol stack in the base station can be more flexible.

In the embodiment of the present invention, the GTP-U protocol stack may be set in an existing base station (for example, Node B) to form a new access node Node C (the specific connection manner is as described above).

On the other hand, in the embodiment of the present invention, the GTP-U protocol stack may also be set in an access network entity located outside the Node B, and connected to the base station protocol stack in the Node B through an optical fiber or the like (at least A protocol layer is connected, for example, by way of example and not limitation. In a heterogeneous network (HetNet), a base station protocol stack may be set in a macro base station (Macro), and the GTP-U protocol stack may be set to be connected to the Node B. In other access nodes, the Node B and the other access nodes that are configured with the GTP-U protocol stack together form a Node C. In the embodiment of the present invention, the other access nodes connected to the Node B may include the micro station Micro and The nano station Pico.

Also, in this case, a plurality of Node Bs can share a GTP-U protocol stack set in a micro station Micro or a nano station Pico. In addition, when Node B is connected to a Node C (through fiber, etc.), the Node B can also use the GTP-U protocol stack set in Node C.

In this way, it is not necessary to modify the existing Node B, and the modification work of setting the GTP-U protocol stack in the existing access node is reduced, thereby improving the practicability of the present invention.

Moreover, in the HetNet system, Node B can be used for some nodes and Node C for some nodes according to the statistical characteristics of network traffic distribution. Node C can also extend coverage by connecting certain access nodes through optical fibers.

Next, the configuration of the protocol stack in the AP will be described.

Optionally, the WLAN AP has a first WLAN AP side protocol stack and a second WLAN AP side protocol stack, where the first WLAN AP side protocol stack is used to implement data processing for communication with the base station on the WLAN AP side, The second WLAN AP side protocol stack is configured to implement data processing for communication with the user equipment on the WLAN AP side, and

The WLAN AP transmits the target data of the user equipment to the base station via the GTP tunnel, including:

The WLAN AP transmits the target data of the user equipment to the base station by using the first WLAN AP side protocol stack;

The WLAN AP transmits the target data to the user equipment through the second WLAN AP side protocol stack.

Specifically, the AP includes a first WLAN AP side protocol stack and a second WLAN AP side protocol stack.

As the second WLAN AP side protocol stack, a protocol stack for implementing the WLAN communication, for example, a WiFi protocol stack, may be cited. It should be understood that the WiFi protocol stack is merely exemplary, and the present invention is not limited thereto. Other protocol stacks capable of implementing communication between the AP and the user equipment on the AP (or wireless local area network access node) side are all within the scope of the present invention.

In an embodiment of the present invention, by way of example and not limitation, the WiFi protocol stack may include: The Link Link Control (LLC) layer, the Media Access Control (MAC) layer, and the Physical Layer (PHY), where the main function of the LLC layer is to ensure transmission reliability and control. Packet segmentation and reassembly, sequential transmission of data packets. The main function of the MAC layer is to provide users with reliable data transmission on unreliable media, providing distributed coordination functions, centralized control access mechanisms, and encryption services, interception and avoidance, and power control. The main function of the physical layer is to perform a physical layer aggregation process to map data blocks to a suitable physical frame format, perform code modulation processing or demodulation decoding processing, and the like.

As the first WLAN AP side protocol stack, some or all of the protocol layers of the GTP protocol stack may be used, and in the embodiment of the present invention, the first WLAN AP side protocol stack may include a user plane protocol stack, and may also include a user. The surface protocol stack and the control plane protocol stack are not particularly limited in the present invention. The following describes the user plane protocol stack (GTP-U protocol stack) of the GTP protocol stack by using the first WLAN AP side protocol stack as an example.

In the embodiment of the present invention, the user plane general packet service tunneling protocol GTP-U protocol stack is used for transmission of a transport protocol data unit between two nodes. The tunnel terminal identifier TEID in the GTP header is used to indicate the tunnel to which the T-PDU belongs, so that the GTP-U multiplexes and demultiplexes the packets at both ends of the tunnel. The TEID value used by the TEID field is obtained through negotiation. The GTP tunnel allows multiplexing of different users, different packet protocols, and different quality of service levels. The T-PDU packet is encapsulated and transmitted in the G-PDU. The G-PDU packet consists of a GTP-U header and a T-PDU. The path protocol defines the path and the GTP-U header defines the tunnel. The multiple tunnels can be multiplexed into one path. Here, the structure of the GTP-U protocol stack can be the same as or similar to the prior art. Here, in order to avoid redundancy, the description thereof is omitted. In the following, explanations of the same or similar situations are omitted.

The AP obtains data from the base station and sends the data to the user equipment. The AP can obtain the data packet from the base station through the GTP tunnel, and parse the data packet through the GTP-U protocol stack to obtain data that the base station needs to send to the UE. After that, the AP can encapsulate the data through the WiFi protocol stack, and send the data to the UE by using a wireless local area network communication method, and then the process is described in detail.

The AP obtains data from the user equipment and sends the data to the base station as an example. The AP can receive the data packet sent by the UE through the WLAN communication mode, and parse the data packet through the WiFi protocol stack to obtain data that the UE needs to send to the base station. After that, the AP can encapsulate the data through the GTP-U protocol stack, and send the data to the base station by using GTP communication, and then the process is described in detail. It should be noted that, in the embodiment of the present invention, an adaptation layer is configured between the first WLAN AP side protocol stack and the second WLAN AP side protocol stack, where the adaptation layer is configured to perform data on the first a conversion process between the WLAN AP side protocol stack and the second WLAN AP side protocol stack;

The WLAN AP transmits the target data of the user equipment to the base station by using the first WLAN AP side protocol stack, and the base station includes:

The WLAN AP inputs the data acquired by the base station to the first WLAN AP side protocol stack, and converts the data format of the data output from the first WLAN AP side protocol stack to the second WLAN AP side protocol by using the adaptation layer. The data format that can be identified by the stack is transmitted to the second WLAN AP side protocol stack, and the data output from the second WLAN AP side protocol stack is sent to the user equipment, or

The WLAN AP inputs the data acquired by the user equipment to the second WLAN AP side protocol stack, and the data format of the data output from the second WLAN AP side protocol stack is converted into the first WLAN AP side by the adaptation layer. The data format that can be identified by the protocol stack is transmitted to the first WLAN AP side protocol stack, and data output from the first WLAN AP side protocol stack is sent to the base station.

Specifically, if the data needs to be converted (for example, format) when passing through the first WLAN AP side protocol stack and the second WLAN AP side protocol stack, the data output according to the first WLAN AP side protocol stack may be used. The format and the format of the data output by the second WLAN AP side protocol stack, between the first WLAN AP side protocol stack and the second WLAN AP side protocol stack, add an adaptation layer for format conversion. For example, in the downlink, the adaptation layer may convert the format of the data output from the GTP-U protocol stack into a data format that the WiFi protocol stack can process. When uplinking, the adaptation layer may output from the WiFi protocol stack. The format of the data is converted to a data format that the GTP-U protocol stack can process.

In this way, by setting the adaptation layer, the format conversion between the GTP-U protocol stack and the WiFi protocol stack can be ensured, and the configuration of the GTP-U protocol stack in the AP can be more flexible.

In the embodiment of the present invention, the GTP-U protocol stack may be set in an existing AP to form a new access node (the specific connection manner is as described above).

On the other hand, in the embodiment of the present invention, the GTP-U protocol stack may also be set in a network entity located outside the AP, and connected to the WiFi protocol stack in the set AP through an optical fiber or the like.

And, in this case, multiple APs can share the GTP-U protocol set in one network entity. Discussion stack.

In this way, the existing ΑΡ is not required to be modified, and the modification work of setting the GTP-U protocol stack in the existing raft is reduced, thereby improving the practicability of the present invention.

The configuration of the protocol stack in the user equipment UE will be described below.

Optionally, the user equipment has a first user equipment side protocol stack and a second user equipment side protocol stack, where the first user equipment side protocol stack is used to implement data processing for communication with the base station on the user equipment side, The second user equipment side protocol stack is configured to implement data processing for communication with the WLAN device on the user equipment side, where the second user equipment side protocol stack and the first user equipment side protocol stack are at least one protocol. Layer connected, and

The user equipment performs the transmission of the target data with the base station by using the WLAN AP, including: the user equipment passes the at least one layer of the first user equipment side protocol stack and the second user equipment side protocol stack, and the WLAN AP is used. And transmitting the target data with the base station.

Specifically, the UE includes a first user equipment side protocol stack and a second user equipment side protocol stack. As the first user equipment side protocol stack, a user equipment protocol stack (specifically, a user plane protocol stack of the user equipment protocol stack) may be enumerated. It should be understood that the user equipment protocol stack is merely an exemplary description, and the present invention Not limited to this, other protocol stacks capable of realizing communication between the base station and the user equipment on the user equipment side are all within the scope of the present invention. And, the communication between the base station and the user equipment includes communication between a core network access node capable of performing a base station function and a user equipment, for example, a relay node (RN, Relay Node) and a user equipment capable of communicating with the user equipment. Communication between.

The user plane protocol stack of the user equipment protocol stack mainly includes a packet data convergence protocol PDCP layer, a radio link control RLC layer, a medium access control MAC layer, and a physical PHY layer. The PDCP layer is mainly used for compressing and decompressing/encrypting and decrypting information. The RLC layer is mainly used to implement the function of automatic retransmission request ARQ, segmenting and cascading information or reorganizing segmentation and concatenation information. The MAC layer is mainly used for the selection of the transport format combination, and implements the related functions of scheduling and hybrid automatic repeat request HARQ; the PHY layer is mainly used for providing information transmission services for the MAC layer and the upper layer, and coding according to the selected transport format combination. Modulation processing or demodulation decoding processing. It should be noted that, since the transmission format of the second user equipment side protocol stack is different from the transmission format of the user equipment protocol stack, the code modulation processing or the demodulation decoding processing is also different, so that the second user equipment side protocol stack does not need to be aggregated. At the PHY layer of the user equipment protocol stack.

As the second user equipment side protocol stack, all or part of the WiFi protocol stack may be used. The second user equipment side protocol stack can be directly aggregated or directly connected to at least one protocol layer of the first user equipment side protocol stack, or the second user equipment side protocol stack can pass the adaptation layer. The aggregation is performed on at least one protocol layer of the first user equipment side protocol stack, and then the role of the adaptation layer is described in detail.

In the embodiment of the present invention, by way of example and not limitation, the WiFi protocol stack may include: a logical link control LLC layer, a media access control MAC layer, and a physical layer PHY, where the main function of the LLC layer is to ensure transmission reliability. And control, packet segmentation and reassembly, sequential transmission of packets. The main function of the MAC layer is to provide users with reliable data transmission on unreliable media, providing distributed coordination functions, centralized control access mechanisms, and encryption services, interception and avoidance, and power control. The main function of the physical layer is to perform a physical layer aggregation process to map data blocks to a suitable physical frame format for coding modulation processing or demodulation decoding processing.

Therefore, in the downlink, since the data transmitted via the second user equipment side protocol stack needs to pass through at least one layer of the first user equipment side protocol stack, the format of the data can be converted into a data format that the UE can read, that is, The data format after decapsulation processing (or format conversion processing) on at least one side of the first user equipment side protocol stack.

And, when the data is transmitted by the second user equipment side protocol stack and the first user equipment side protocol stack, the at least one protocol layer of the first user equipment side protocol stack may be used to pass the first user. The data transmitted by the device side protocol stack and the data transmitted via the second user equipment side protocol stack are aggregated, and then the process will be described in detail.

And, in the uplink, if the data is transmitted by the first user equipment side protocol stack and the second user equipment side protocol stack, the at least one protocol layer of the first user equipment side protocol stack may be used to pass the first user. The data transmitted by the device side protocol stack and the data transmitted via the second user equipment side protocol stack are subjected to bearer differentiation and data packet sequence number setting, and then the process is described in detail.

Optionally, in the embodiment of the present invention, the at least one protocol layer of the first user equipment side protocol stack includes at least one protocol layer:

Packet Data Convergence Protocol PDCP Layer, Radio Link Control RLC Layer or Media Access Control MAC Layer

Specifically, in the embodiment of the present invention, some or all of the protocol layers of the WIFI protocol stack may be used as the second user equipment side protocol stack, and in the embodiment of the present invention, the second user equipment side protocol stack may include User plane protocol stack, which may also include user plane protocol stack and control plane protocol The stack is not particularly limited in the present invention. In the following, the second user equipment side protocol stack is used as an example for the user plane protocol stack (WIFI protocol stack), for example, in the case of using the user equipment protocol stack as the first user equipment side protocol stack, the WIFI The protocol stack needs to be aggregated on the user plane user equipment protocol stack of the UE.

Therefore, in the embodiment of the present invention, the second user equipment side protocol stack may be aggregated in the foregoing manner.

On any of the PDCP layer, RLC layer or MAC layer.

Optionally, in the embodiment of the present invention, the second user equipment side protocol stack may be directly connected to at least one protocol layer of the first user equipment side protocol stack by using an internal interface. Specifically, if the data transmitted between the base station and the AP does not need to be (eg, formatted) converted through the second user equipment side protocol stack and the at least one protocol layer of the first user equipment side protocol stack, The second user equipment side protocol stack is directly connected to at least one protocol layer in the first user equipment side protocol stack.

In the case where the user plane protocol stack of the WIFI protocol stack is used as the second user equipment side protocol stack and the user plane protocol stack of the user equipment protocol stack is used as the first user equipment side protocol stack, by way of example and not limitation, for example As shown in FIG. 3a, the WIFI protocol stack can be aggregated in the PDCP layer of the user equipment protocol stack. As another example, as shown in Figure 3b, the WIFI protocol stack can be aggregated at the RLC layer of the user equipment protocol stack. As another example, as shown in Figure 3c, the WIFI protocol stack can be aggregated at the MAC layer of the user equipment protocol stack.

Optionally, the first base station side protocol stack includes a reordering layer, where the reordering layer is used to determine a location of the target data in all data on the bearer, and at least one protocol layer of the first user equipment side protocol stack For this reordering layer, and

The user equipment performs the transmission of the target data with the base station by using the WLAN AP, and the user equipment determines, by using the reordering layer, the location of the uplink target data in the target data in all uplink data on the bearer, and The sorting layer generates the second location indication information, where the second location indication information is used to indicate the location of the uplink target data in all uplink data on the bearer; the user equipment sends the second location indication information to the WLAN AP, so that And determining, by the base station, the location of the uplink target data in all uplink data on the bearer according to the second location indication information forwarded by the WLAN AP.

And the sending, by the user equipment, the second location indication information to the WLAN AP, the user equipment, by using the reordering layer, the second location indication information and the uplink target data are encapsulated in the same data packet, and sent to the WLAN AP. Optionally, the first base station side protocol stack includes a reordering layer, where the reordering layer is used to determine a location of the target data in all data on the bearer, and at least one protocol layer of the first user equipment side protocol stack For this reordering layer, and

The user equipment performs the transmission of the target data with the base station by using the WLAN AP, and the user equipment obtains, by using the reordering layer, the first location indication information that is forwarded by the WLAN AP, where the first location indication information is used to indicate The location of the downlink target data in the target data in all downlink data on the bearer;

The user equipment determines, according to the first location indication information, a location of the downlink target data in all downlink data on the bearer, where the first location indication information is determined by the base station and sent to the WLAN AP.

And the user equipment obtains, by using the reordering layer, the first location indication information that is forwarded by the WLAN AP, including:

The user equipment obtains the first location indication information from the data packet encapsulated with the downlink target data by using the reordering layer.

Specifically, in the embodiment of the present invention, in addition to all protocol stacks of the user equipment protocol stack (including the PDCP layer, the RLC layer, the MAC layer, and the PHY layer), the first user equipment side protocol stack may further have a protocol. A layer (reordering layer) to convert data transmitted via the second user equipment side protocol stack into a data format that can be read by an existing user equipment.

In the downlink, if data is transmitted by both the first user equipment side protocol stack and the second user equipment side protocol stack, the data transmitted via the first user equipment side protocol stack and the second data may be passed through the reordering layer. The data transmitted by the user equipment side protocol stack is aggregated (or, in other words, the bearer of each data is confirmed to be sorted according to the bearer), and then the process is described in detail.

In the uplink, if data is transmitted by both the first user equipment side protocol stack and the second user equipment side protocol stack, the data transmitted via the first user equipment side protocol stack and the second data may be passed through the reordering layer. The data transmitted by the user equipment side protocol stack carries the bearer differentiation and the data packet sequence number setting. Subsequently, the process is described in detail.

In the case where the user plane protocol stack of the WIFI protocol stack is used as the second user equipment side protocol stack and the user plane protocol stack of the user equipment protocol stack is used as the first user equipment side protocol stack, by way of example and not limitation, for example As shown in FIG. 3d, the WIFI protocol stack can be aggregated in a reordering layer of the user equipment protocol stack.

For example, the UE may send data to the AP, and the UE may pass at least one association of the user equipment protocol stack. The data layer is processed by the layer and the WIFI protocol stack, and the processed data is sent to the AP in WIFI communication mode. Thereafter, the AP can send the data to the base station, and then the process is described in detail.

For example, the UE may receive the data sent by the AP by using the wireless local area network communication mode, and the data packet may be processed by the WIFI protocol stack and at least one protocol layer of the user equipment protocol stack. The data sent by the base station to the UE through the AP is obtained, and then the process is described in detail.

Optionally, the second user equipment side protocol stack includes an adaptation layer, where the adaptation layer is configured to perform data on at least one protocol layer of the first user equipment side protocol stack and the second user equipment side protocol stack. Inter-switching process, the second user equipment side protocol stack is connected to the at least one protocol layer of the first user equipment side protocol stack by the adaptation layer;

The user equipment performs the transmission of the target data with the base station by using the WLAN AP, and the user equipment inputs the uplink target data to at least one protocol layer of the first user equipment side protocol stack, and the adaptation layer The data format of the data output by the at least one protocol layer of the first user equipment side protocol stack is converted into a data format recognizable by the second user equipment side protocol stack, and transmitted to the second user equipment side protocol stack, The data output by the second user equipment side protocol stack is sent to the WLAN AP to be sent to the base station by using the WLAN AP, or

The user equipment inputs data acquired by the WLAN AP to the second user equipment side protocol stack, and the data format of the data output from the second user equipment side protocol stack is converted into the first user equipment by the adaptation layer. The at least one protocol layer of the side protocol stack is identifiable and transmitted to at least one protocol layer of the first user equipment side protocol stack to obtain downlink target data.

Specifically, as shown in FIG. 1, if data transmitted between the UE and the AP passes through the second user equipment side protocol stack and at least one protocol layer of the first user equipment side protocol stack (for example, Formatting, according to the format of the data output by the at least one protocol layer of the protocol layer of the first user equipment side and the format of the data output by the protocol stack of the second user equipment side, at least the protocol stack of the first user equipment side An adaptation layer (adaptive layer) for format conversion is added between a protocol layer and a second user equipment side protocol stack, for example, by way of example and not limitation, if the WIFI protocol stack is aggregated in the PDCP layer of the user equipment protocol stack In the above, the adaptation layer can be used to perform format conversion processing between the PDCP layer and the WIFI protocol stack on the data. It should be understood that the above-described connection manners are merely illustrative, and the present invention is not limited thereto. If the WIFI protocol stack is aggregated on the RLC layer of the user equipment protocol stack, the adaptation layer can be used to perform data on the RLC layer and WIFI. Format conversion processing between protocol stacks.

For example, the UE may send data to the AP, and the UE may process the data by using at least one protocol layer, the adaptation layer, and the WIFI protocol stack of the user equipment protocol stack, and send the processed data to the AP by using WIFI communication. Thereafter, the AP can transmit the data to the base station, and the process will be described in detail later.

For example, the UE may receive the data sent by the AP by using the wireless local area network communication mode, and may use the WIFI protocol stack, the adaptation layer, and the at least one protocol layer of the user equipment protocol stack. The packet is processed to obtain data that the base station sends to the UE through the AP, and then the process is described in detail.

In this way, by setting the adaptation layer, it is possible to ensure the conversion of data between the WIFI protocol stack and the user equipment protocol stack, and the configuration of the WIFI protocol stack in the UE can be more flexible.

Next, an operation when the base station performs data transmission in accordance with the method of transmitting data according to the embodiment of the present invention will be described.

4 is a schematic flowchart of a method 100 for transmitting data according to an embodiment of the present invention. The method 100 is performed by a base station in a communication system, where the communication system further includes a WLAN access point WLAN AP and a user equipment. The base station and the gateway device are provided with a bearer for transmitting data of the user equipment, and the base station and the WLAN AP are provided with a general packet radio service tunneling protocol GTP tunnel, and the method includes:

S110. Determine a channel bandwidth used by the user equipment to communicate with the WLAN AP. S120. Perform, according to the channel bandwidth, the target data transmission by using the WLAN AP and the user equipment, where the target data is transmitted. Is all or part of the data on the bearer.

According to the method for transmitting data of the present invention, the base station determines a channel bandwidth used for communication between the user equipment and the WLAN AP, and determines target data of the target user equipment that needs to be transmitted through the WLAN AP according to the channel bandwidth; At least one protocol layer of the first base station side protocol stack and the second base station side protocol stack, the downlink target data is encapsulated to generate a first data packet, and the first data packet is sent to the WLAN AP by using the first GTP tunnel. The WLAN AP receives the second data packet by using the first carrier for wireless local area network communication, and the second data packet is generated by the WLAN AP after the first data packet is processed and sent. And the downlink target data is all or part of downlink data on the at least one bearer; and/or the base station receives the third data packet sent by the WLAN AP by using the second GTP tunnel, by using the At least one protocol layer of the first base station side protocol stack and the second base station side protocol stack, the third data packet is decapsulated to obtain uplink target data, where the third data packet is the WLAN AP pair fourth. The data packet is generated and sent, and the fourth data packet is generated after the target user equipment encapsulates the uplink target data, and is sent to the WLAN AP by using a second carrier for wireless local area network communication, where The uplink target data is all or part of the uplink data on the at least one 7| carrier.

Specifically, in the embodiment of the present invention, the target user equipment can access the base station, and access the network side (for example, EPC) through the base station, and the base station and the network side gateway device (for example, PDN-GW) pass The bearer (for example, the Evolved Packet System (EPS)) transmits the data of the target user equipment (including the uplink data and the downlink data), and the time-frequency resources provided by the system can be used between the target user equipment and the base station through the air interface. The data transmission, the above process and the implementation method may be the same as or similar to the prior art. Here, in order to avoid redundancy, the description thereof is omitted.

S110. The base station may determine whether the data transmission of the target user needs to be offloaded, that is, transmit all or part of the data of the target user by using the AP.

In the embodiment of the present invention, the base station may activate the second base station side protocol stack to complete the related process of the foregoing offloading if the activation condition is met.

Hereinafter, the above activation conditions will be described by way of example and not limitation.

Condition 1, the base station can monitor a carrier provided by the system for transmitting data (accessing multiple user equipments of the base station), if the ratio of the load to the capacity of the downlink carrier exceeds a certain threshold (for example, 1), that is, the capacity of the downlink carrier. If the demand cannot be satisfied, or the ratio of the load to the capacity of the uplink carrier exceeds a certain threshold (for example, 1), that is, the capacity of the uplink carrier cannot satisfy the requirement, it can be determined that the above activation condition is satisfied.

Condition 2, the target user equipment may request the base station to offload the data, and the base station may immediately activate the second base station side protocol stack to perform the related procedure of the offload according to the request, or the base station may determine whether the condition 1 is satisfied according to the request. And, if the condition 1 above is satisfied, the second base station side protocol stack is activated to perform a related process of offloading.

It should be understood that the activation conditions enumerated above, the parameters for determining the activation conditions, and the threshold thereof are only an exemplary illustration of the present invention, and the present invention is not limited thereto.

After determining that the data of the target user equipment needs to be offloaded, the base station can determine the traffic volume that needs to be offloaded. That is, the base station can determine the channel bandwidth used by the wireless LAN communication between the target user equipment and the AP (or, the most common wireless local area network communication between the target user equipment and the AP) High transmission rate), for example, may make the traffic of the offload less than or equal to the channel bandwidth determined as described above. In the embodiment of the present invention, the channel bandwidth may be determined by the target user after being negotiated with the AP and reported to the base station (ie, Case A), or the channel bandwidth may also be the communication capability of the base station according to the target user and the communication of the AP. The capability determination (ie, case B), below, describes the actions and processes of the above two cases.

Situation A

Optionally, determining the channel bandwidth used by the user equipment to communicate with the WLAN AP includes:

Receiving the first channel bandwidth indication information sent by the user equipment or the WLAN AP, where the first channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP, where the channel bandwidth is determined by the Determining, after the user equipment negotiates with the WLAN AP, determining, according to the first channel bandwidth indication information, a channel bandwidth used by the user equipment to communicate with the WLAN AP.

In the embodiment of the present invention, since the channel bandwidth is determined by the target user and the AP, the target user and the AP can both know the channel bandwidth, and the channel bandwidth can be any one of the target user and the AP. The present invention is not limited to the present invention. For ease of understanding and description, the following describes an example in which the user equipment notifies the base station of the channel bandwidth.

In addition, in the embodiment of the present invention, the wireless local area network communication between the UE and the AP can be communicated using various existing versions, for example, an 802.11a/b/g version, an 802.11n version, or an 802.11ac version.

For example, in the 802.1 In version (an example of WLAN communication), a channel bandwidth of 20 megahertz (MHz) and 40 MHz can be used, and a 40 MHz channel is composed of two adjacent 20 MHz channels to achieve a higher transmission data rate. Moreover, before using the 40 MHz channel, the AP needs to determine that the two adjacent 20 MHz channels are not used by other communication devices (for example, other APs or Bluetooth communication devices, etc.).

Three communication modes are defined in the 802.11n version:

High Throughput mode: APs and UEs can support high throughput using 802.11n versions.

Non-HT (Non-High Throughput) mode: APs and UEs do not support 802.11n versions, and versions such as 802.11a/b/g cannot support high throughput.

HT Mixed (High Throughput Mixed) mode: AP and UE Both 802.11n and versions such as 802.11a/b/g can be supported.

A UE with HT capability (or 802.11n version support) can declare its HT capability to the AP through Capabilities, for example, whether it supports 40MHz bandwidth operation, whether it can tolerate 40MHz bandwidth, and supports modulation and coding. The MCS (Modulation and Coding Scheme) type, whether to support multiple input and multiple output, etc., the AP can determine the operation mode of the UE according to the HT capability of the UE.

Hereinafter, for ease of understanding and explanation, the communication version between the UE and the AP is 802.11n as an example.

In the embodiment of the present invention, the base station may instruct the UE and the WLAN AP to negotiate an operation mode by using, for example, Radio Resource Control (RRC) dedicated signaling or system broadcast signaling. The process of negotiating and determining the channel bandwidth between the UE and the AP may be performed when the UE accesses the AP. In this case, for example, the eNB may identify the Basic Service Set Identifier (BSSID) or the service set identifier of the WLAN AP. (SSID, Service Set Identifier) is given to the UE, so that the UE can determine and access the AP according to the BSSID or SSID.

In the embodiment of the present invention, for example, the passively scanned UE may send a Probe Request message or an Association Request message to the AP, and the message may carry the following information:

High throughput capability information ( HT Capabilities );

20/40 basic service set coexistence (20/40 BSS Coexistence).

Among them, 20/40 BSS Coexistence can contain the following cells:

An information request message (Information Request), used to indicate whether the UE requests a 20/40 BSS Coexistence Management Frame (20/40 BSS Coexistence Management Frame);

40MHz Totolerant (40MHz Intolerant), used to indicate whether the UE blocks 20/40MHZ operation, it should be noted that the indication is used for the scenario of communication between basic service sets (inter-BSS);

A 20 MHz BSS Width Request is used to indicate whether the UE requests communication through a channel bandwidth of 20 MHz.

Overlapping Basic Service Set Scanning Exemption Request is used to indicate whether the UE requests overlapping basic service set scanning.

Overlapping Basic Service Set Scanning Allowed (Overlapping Basic Service Set Scanning

Exemption Grant), used to indicate whether the UE allows overlapping basic service set scanning. It should be understood that the cells included in the 20/40 BSS Coexistence listed above are merely illustrative, and the present invention is not limited thereto. The 20/40 BSS Coexistence of the present invention can be the same as the 20/40 BSS Coexistence in the prior art. , contains its various cells.

HT Capabilities can contain the following cells:

Supported Channel Width Set, which is used to indicate that the UE supports receiving and transmitting a 40 MHz Physical Layer Convergence Procedure protocol data unit (PPDU) or only supports receiving and transmitting a 40 MHz PPDU.

A SM Power Save (Various Multiplexing Power Save), a power saving mode for indicating whether the UE supports space division multiplexing;

20 GHz guard interval (Short Guard Interval for 20 MHz, ), used to indicate whether the UE supports the guard interval at 20 MHz;

40 GHz guard interval (Short Guard Interval for 40 MHz, ), used to indicate whether the UE supports the guard interval at 40 MHz;

Supported MCS Set, which is used to indicate the MCS type supported by the UE;

HT Extended Capabilities is used to indicate the extended HT capability of the UE.

It should be understood that the cells included in the above-mentioned HT Capabilities are merely exemplary descriptions, and the present invention is not limited thereto. The HT Capabilities of the present invention may be the same as the HT Capabilities in the prior art, and include various cells thereof.

After receiving the Probe Request or Association Request sent by the UE, the AP determines and delivers a Probe Response or Association Response message for the UE according to the HT Capabilities and the 20/40 BSS Coexistence.

For example, when the following decision condition is satisfied, the AP may determine that the communication with the UE may use the 20/40 MHZ communication mode:

Both the AP and the UE can support the 20/40MHz communication mode, or the Supported Channel Width Set in the HT Capabilities of the AP and the UE are both indicated to support receiving and transmitting 40MHz PPDUs (for example, the Supported Channel Width Set is set to a non-zero value) );

b. There is a valid secondary carrier in the wireless communication system (for example, it is not occupied by other APs), or the Secondary Channel Offset in HT Operation can indicate a valid secondary load. It should be understood that the above-mentioned determination conditions are merely exemplary, and the present invention is not limited thereto, and other methods that can be used to determine the channel bandwidth of communication between the AP and the UE fall within the protection scope of the present invention. HT Capabilities;

HT Operation ( HT Operation );

20/40 BSS Coexistence;

Overlapping BSS Scan Parameters;

Extended Capabilities;

Among them, the above HT Capabilities, 20/40 BSS Coexistence and Extended

The role of Capabilities is similar to that of HT Capabilities, 20/40 BSS Coexistence and Extended Capabilities in Probe Request or Association Request. Here, in order to avoid redundancy, the description is omitted.

Also, HT Operation includes the following cells:

a primary channel of the primary channel, which is used to indicate the primary channel determined by the AP, and a secondary channel offset (secondary channel offset) for indicating the offset of the secondary channel relative to the primary channel;

The channel Width is used to indicate whether the channel bandwidth that the UE can use is 20 MHz bandwidth or 40 MHz bandwidth, or whether the UE can only use the primary channel or both the primary channel and the secondary channel.

Therefore, the UE reports the acquired HT Operation (an example of the first channel bandwidth indication information) to the base station. The base station can determine the channel bandwidth used for communication between the UE and the AP according to the HT Operation (specifically, Channel Width).

It should be understood that the specific content of the first channel bandwidth indication information enumerated above is only an exemplary description, and the present invention is not limited thereto. For example, the UE evaluates the maximum transmission rate according to the acquired HT Operation parameter, for example, if the Channel Width indication The available channel bandwidth is 40 MHz, and the maximum transmission rate can be determined to be 40 Mbps, and the maximum transmission rate (another example of the first channel bandwidth indication information) can be reported to the base station. Moreover, the maximum transmission rate may be an absolute value, such as 40 Mbps, or a relative value. For example, three thresholds of low, medium, and high may be set, and if the maximum rate exceeds a rate value corresponding to a "high" threshold, And sending the rate value corresponding to the "high" threshold to the base station. Thus, the base station can determine the channel bandwidth (or communication mode) of communication between the UE and the AP. Situation B

Receiving, by the user equipment, first capability information indicating a channel bandwidth that the user equipment can support;

Receiving, by the WLAN AP, second capability information indicating a channel bandwidth that the WLAN AP can support;

And determining, according to the first capability information and the second capability information, a channel bandwidth used by the user equipment to communicate with the WLAN AP.

Specifically, for example, before the UE accesses the AP, the UE may send the HT Capabilities (an example of the first capability information) to the base station, and the AP may send the HT Capabilities (an example of the second capability information) to the base station, The base station may determine the channel bandwidth of the communication between the UE and the AP according to the HT Capabilities sent by the UE and the HT Capabilities sent by the AP. For example, if both the UE and the AP support receiving and transmitting the 40 MHz PPDU, the AP may determine the communication between the UE and the AP. The channel bandwidth is above 20 MHz, for example 40 MHz. For another example, if the AP supports receiving and transmitting 40 MHz PPDUs, but the UE does not support receiving and transmitting 40 MHz PPDUs and only supports receiving and transmitting 20 MHz PPDUs, the AP may determine that the channel bandwidth of communication between the UE and the AP is 20 MHz or less.

It should be understood that the HT listed above as the first capability information and the second capability information

The Capabilities are only exemplary. The present invention is not limited thereto. Other information indicating the channel bandwidth that the UE and the AP can support falls within the protection scope of the present invention. For example, only the Supported Channel in the HT Capabilities may be selected. The Width Set is used as the first capability information and the second capability information.

Thus, the base station can determine the channel bandwidth (or communication mode) of communication between the UE and the AP. At S120, the base station can determine the offload traffic.

Optionally, the transmitting, by the WLAN AP, the target data by using the WLAN AP, according to the channel bandwidth, includes:

Determining downlink target data according to the channel bandwidth, where the target downlink data is all or part of downlink data on the bearer;

Sending the downlink target data to the WLAN AP via the GTP tunnel, so as to facilitate the The WLAN AP forwards the downlink target data to the user equipment.

Specifically, in the downlink (that is, the base station acquires data from the gateway device and delivers the data to the UE), the base station can directly determine the downlink traffic (ie, the downlink target data) according to the channel bandwidth determined in S110. For example, the base station may predetermine a mapping relationship between each offload traffic and each channel bandwidth (or communication mode), if the UE and the AP can work in a 20/40 MHz communication mode (ie, a high throughput communication mode), the base station The shunt traffic corresponding to the communication mode of the high-throughput communication mode in the mapping relationship can be found. Of course, the traffic volume corresponding to the communication mode of the high-throughput communication mode can be much larger than the traffic volume corresponding to the non-high-throughput communication mode.

Optionally, the transmitting, by the WLAN AP, the target data by using the WLAN AP, includes:

Transmitting, by the user equipment, the second channel bandwidth indication information, where the second channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP, so that the user equipment is configured according to the second channel bandwidth indication. Information, determining uplink target data, where the target uplink data is all or part of uplink data on the bearer;

Receiving, by the GTP tunnel, the uplink target data sent by the WLAN AP, where the uplink target data is sent by the user equipment to the WLAN AP.

Specifically, for example, in the foregoing case B, since the UE has not accessed the AP, neither the UE nor the AP determine the channel bandwidth for communication between each other. In this case, the base station may determine the channel bandwidth determined in S110. The UE is sent to the UE, so that the UE can determine the offload traffic (uplink target data) of the uplink (the UE transmits data to the gateway device via the base station) according to the channel bandwidth. For example, if the channel bandwidth indicated by the base station is 40 MHz, the UE can make the offload traffic larger. For another example, if the channel bandwidth indicated by the base station is 20 MHz, the UE can make the offload traffic smaller. Of course, the split traffic with a channel bandwidth of 40 MHz can be much larger than the split traffic with a channel bandwidth of 20 MHz.

In addition, in the communication process between the UE and the AP, there is a case where the secondary channel is occupied by another AP or the like, and communication cannot be continued in the high-throughput communication mode, or there is a secondary channel that the AP finds usable (not being used by other APs, etc.) The user can switch to the communication in the high-throughput communication mode. In this case, the UE can receive the changed HT Operation sent by the AP, determine that the channel bandwidth changes, and notify the base station of the changed channel bandwidth. The base station can re-determine the split traffic according to the changed channel bandwidth.

Optionally, the method further includes:

Receiving channel switching information sent by the user equipment or the WLAN AP, the channel switching information a time for indicating a channel used for communication between the user equipment and the WLAN AP and completing the handover; and

And transmitting, according to the channel bandwidth, the target data by using the WLAN AP and the user equipment, including:

Passing the channel bandwidth and the channel switching indication information, and passing the GTP tunnel

The WLAN AP transmits the target data with the user equipment.

Specifically, for example, when the AP detects that the currently used secondary channel overlaps with the primary channels of other APs, there is a case where the AP needs to switch the current secondary channel to a new operational channel. In this case, the AP may carry a Channel Switch Announcement in a message such as a Beacon, a Probe Response, or a Channel Switch Announcement to notify the UE that the channel is being switched. The Channel Switch Aimoimcement can include the following cells:

a channel switch mode (Channel Switch Mode), configured to indicate whether the UE can continue to transmit data during channel switching;

New Channel Number, used to indicate the channel number to be switched to; Channel Switch Count, used to indicate the time before switching to the new channel.

Therefore, the UE or the AP may send the related parameter (an example of the channel switching indication information) in the channel Channel Switch Announcement to the base station by using, for example, an RRC dedicated message, so that the base station can evaluate the UE and the AP to complete the channel switching according to the Channel Switch Conut. Time, thus, the base station does not perform offloading through the AP when the channel is switched, and re-executes the offloading process after the handover is completed.

It should be noted that, when the channel bandwidth is changed before and after the handover due to the foregoing channel switching, the base station may re-acquire the channel bandwidth after the handover and re-determine the traffic, and the process is similar to the process in the foregoing S110, where In order to avoid redundancy, the description thereof is omitted.

In addition, the communication capability (the channel bandwidth that can be supported) of the UE and the AP listed above may be the absolute communication capability of the UE and the AP, or may be the relative communication capability of the UE and the AP in a certain period of time, for example, for the AP, if There is currently no secondary channel that can be used (all channels are occupied by other APs), and the current AP cannot support the communication bandwidth of 40 MHz. Similarly, if there is currently a secondary channel that can be used (the channel does not overlap with the primary channel of other APs). ), the current AP can support a communication bandwidth of 40 MHz. The above describes the application of the method for transmitting data of the present invention in the 802.11n version, but the present invention is not limited thereto. For example, the VHT (Very High Throughput) mode can be introduced in the 802.11ac version. Supports up to 160MHz bandwidth. Similarly, for VHT-capable UEs, the VHT features supported by the VHT Capabilities cell are declared, for example, whether to support 80MHz+80MHz or 160MHz channel bandwidth (indicated by Supported Channel Width Set), and The AP can support four channel bandwidths, namely 20 MHz, 40 MHz, 80 MHz and 160 MHz or 80 MHz + 80 MHz. In this case, for example, the HT Capabilities used in the above S110 and S1 ² 0 may be replaced by the VHT Capabilities, and the other steps and methods are similar to those in the 802.11n version, except that the final determined channel bandwidth may vary. In order to avoid redundancy, the description is omitted.

In addition, for example, if only one (or a small number) of ΑΡ is set in the system, there may be a case where the primary channel and the secondary channel can be provided to the UE regardless of any time period, and at this time, the UE and the ΑΡ can negotiate communication with each other. The version (for example, any of 802.11a/b/g, 802.11n, or 802.11ac) is reported to the base station, so that the base station can determine the offload traffic according to the version of the current communication, for example, if the communication version is 802.11a /b/g, the base station can determine that the channel bandwidth for communication between the UE and the AP is 20 MHz. If the communication version is 802.11n, the base station can determine that the channel bandwidth for communication between the UE and the AP is 40 MHz, if the communication version is 802.11ac, the base station can determine that the channel bandwidth for communication between the UE and the AP is 80 MHz or higher. Alternatively, the UE and the AP may separately report the supported versions, so that the base station may determine the channel bandwidth of the communication between the UE and the AP according to the lower version of the two, for example, if the UE only supports 802.11a/b/g, The base station supports all of 802.11a/b/g, 802.11n, and 802.11ac, and based on the version supported by the UE, it can be determined that the channel bandwidth for communication between the UE and the AP is 20 MHz.

After determining the traffic of the offload, the base station needs to notify the AP and the target user equipment to prepare for offloading.

Optionally, before the transmitting, by the WLAN AP, the target data by using the WLAN AP, the method further includes:

Sending the first offloading indication information to the WLAN AP, where the first offloading indication information is used to indicate that the WLAN AP transmits data between the base station and the user equipment, where the first offloading indication information includes identity information of the user equipment, where An identity information is used to uniquely indicate a user equipment in the communication system.

Specifically, the base station sends the first offloading indication information to the AP, where the first offloading indication information may be The data indicating that the AP needs to send the base station to the target user equipment is sent to the target user equipment, and the data that the target user equipment needs to send to the base station is sent to the base station, where the first offload indication information can be the identity information of the target user equipment. Sent to the AP, where an identity information can uniquely indicate a user equipment in the system.

The identity information can include any of the following information:

MAC address, Internet Protocol IP address, basic service set identifier BSSID, associated identity information AID, mobile user handset number, international mobile subscriber identity IMSI or international mobile station device identity IMEI.

Specifically, in the embodiment of the present invention, the identity information of the device refers to information capable of uniquely identifying the device in the communication system using the embodiment of the present invention. It should be noted that, in the embodiment of the present invention, the identity information may be information that is provided when the device is shipped from the factory, or the system may be allocated by the device, and the present invention is not particularly limited.

In the embodiment of the present invention, the identity information may include a Medium Access Control (MAC) address, an Internet Protocol (IP) address, a Basic Service Set IDentifier (BSSID), and an associated identity. Information (AID, Association IDentifier), mobile user mobile number, International Mobile Subscriber Identity (IMSI, International Mobile Subscriber Identity) and International Mobile Equipment Identity (IMEI, International Mobile Equipment Identity). It should be understood that the user identifier of the embodiment of the present invention is not limited to the above information, and other cells that can uniquely represent the user identifier are all within the scope of the embodiments of the present invention.

The AP may determine the target user equipment according to the identity information of the target user equipment, and may determine, according to the first offload indication information, that the data sent by the base station needs to be sent to the target user equipment, or determine that the target needs to be The data sent by the user equipment is sent to the base station.

The AP and the target user equipment need to know the MAC address of the target user equipment when the data is transmitted by using the WLAN. Therefore, the AP may obtain the MAC address of the target user equipment after determining the target user equipment, for example, The Mobility Management Entity (MME) in the system obtains the MAC address of the target user equipment, and obtains the MAC address of the target user equipment from the target user equipment, and obtains the MAC address of the target user equipment from the base station. The address is not particularly limited in the present invention.

In addition, in the embodiment of the present invention, the user equipment may carry its MAC address to the MME through, for example, an Attach Request or a Tracking Area Update Request message, so that the MME may set the MAC of the user equipment. Address by, for example, UE The initial Context Setup Request or the UE Context Modify Request is sent to the base station, so that the base station can acquire the MAC address of each user equipment.

In addition, the base station may send a GTP tunnel end identifier (TEID) corresponding to the target user equipment to the AP by using, for example, a UE Association Setup Request message, and may, for example, The UE Association Setup Response message receives the GTP TEID corresponding to the target user equipment on the AP side sent by the AP. Therefore, a base station side GTP TEID can identify an uplink GTP tunnel (a GTP tunnel used when transmitting data from the AP to the base station), and an AP side GTP TEID can identify a downlink GTP tunnel (a GTP tunnel used when transmitting data from the base station to the AP) ).

Optionally, the base station transmits the target data to the user equipment by using the WLAN AP, including:

The base station determines a first GTP tunnel corresponding to the user equipment;

The base station transmits the target data to the user equipment through the WLAN AP via the first GTP tunnel.

Specifically, if there is only one UE that needs to be offloaded by the AP, the target data can be directly transmitted through each GTP tunnel. However, if there are two or more UEs that need to be offloaded by the AP, or the UE currently accessing the AP If there are two or more, it is necessary to determine the mapping relationship between each GTP and each UE between the base station and the AP. Thus, for example, when a base station needs to transmit data (ie, downlink data) to a user equipment (hereinafter, referred to as a target user equipment for convenience of distinction) through an AP, it may pass a GTP tunnel corresponding to the target device (specifically And is a downlink tunnel. The downlink data (downlink target data) is sent to the AP, and the AP may determine, according to the tunnel through which the received data, the data is downlink target data that needs to be sent to the target user equipment. For example, after receiving the data sent by the target user equipment, the AP may determine, according to the first offloading indication information, that the data is data that needs to be sent to the base station (uplink target data), so that the AP may select the target user equipment. Corresponding GTP tunnel (specifically, an uplink tunnel), and sending uplink target data to the base station through the GTP tunnel, the base station may determine, according to the tunnel through the received data, that the data is from the target user equipment. Upstream target data.

Optionally, the base station determines a first GTP tunnel corresponding to the user equipment, including: The base station determines an uplink first GTP tunnel corresponding to the user equipment;

The base station sends the first mapping relationship information to the WLAN AP, where the first mapping relationship information is used to indicate a mapping relationship between the tunnel identifier TEID of the uplink first GTP tunnel and the user equipment;

And transmitting, by the base station, the target data by using the WLAN AP and the user equipment, including:

When receiving the data sent by the WLAN AP via the uplink first GTP tunnel, the base station determines, according to the first mapping relationship, that the received data is uplink target data sent by the user equipment.

Specifically, in the embodiment of the present invention, the GTP tunnel for transmitting data may be determined by the receiving end of the data. For example, the base station may determine the GTP TEID of the uplink GTP tunnel corresponding to each user equipment, and the GTP tunnel of each uplink GTP tunnel The mapping between the GTP TEID and the user equipment (for example, the identity information of the user equipment) (the first mapping relationship information) is notified to the AP, so that when the AP receives the uplink data sent by the target user equipment, the AP may be based on the target. The identity information of the user equipment, from the first mapping relationship, finds the GTP TEID of the uplink GTP tunnel corresponding to the target user equipment, and then determines the uplink GTP tunnel, and passes the uplink data (uplink target data) of the target user equipment. The uplink GTP tunnel determined as described above is sent to the base station. After receiving the data through the uplink GTP tunnel, the base station may search for the user equipment corresponding to the TEID of the uplink GTP tunnel in the first mapping relationship to determine the uplink. The target user device from which the data came.

Optionally, the determining, by the base station, the first GTP tunnel corresponding to the user equipment, the method includes: receiving, by the base station, second mapping relationship information that is sent by the WLAN AP, where the second mapping relationship information is used to indicate that the first GTP tunnel is downlink Mapping relationship between the TEID and the user equipment;

The base station determines the downlink first GTP tunnel according to the second mapping relationship information, and the base station performs the target data transmission with the user equipment by using the WLAN AP, including:

The base station sends the downlink target data to the WLAN AP by using the downlink first GTP tunnel, so that the WLAN AP determines the user equipment according to the second mapping relationship information after receiving the data through the downlink first GTP tunnel. And forwarding the downlink target data to the user equipment.

Specifically, in the embodiment of the present invention, the GTP tunnel for transmitting data may be determined by the receiving end of the data. For example, the AP may determine the GTP of the downlink GTP tunnel corresponding to each user equipment. The TEID notifies the base station of the mapping relationship between the GTP TEID of each downlink GTP tunnel and the user equipment (for example, the identity information of the user equipment), so that the base station needs to pass the AP to the target user. When the downlink data is sent by the device, the GTP TEID of the downlink GTP tunnel corresponding to the target user equipment is found from the second mapping relationship according to the identity information of the target user equipment, and then the downlink GTP tunnel is determined, and the target is determined. The downlink data (downlink target data) of the user equipment is sent to the AP through the downlink GTP tunnel determined as described above, and after the AP receives the data through the downlink GTP tunnel, the AP may search for the downlink GTP tunnel in the second mapping relationship. The user equipment corresponding to the TEID determines the target user equipment to which the downlink data needs to be sent.

Since the GTP tunnel established above corresponds to the target user equipment, the base station and the AP can determine that the data belongs to the target user equipment by using a tunnel for transmitting data (or a GTP TEID carried in the data packet).

It should be noted that if a plurality of bearers for transmitting the target user equipment are provided between the base station and the gateway device, the same number of GTP tunnels can be established between the base station and the AP, so that multiple bearers can be established. Corresponds to - between multiple GTP tunnels (specifically, multiple GTP TEIDs). Thus, the GTP tunnel can be used to distinguish the bearers belonging to it, and then the process will be described in detail.

The method also includes:

The base station sends the second offloading indication information to the user equipment, where the second offloading indication information is used to indicate that the target data is transmitted between the user equipment and the WLAN AP.

Specifically, the base station sends the second offloading indication information to the target user equipment, where the second offloading indication information may indicate that the target user equipment needs to receive data sent by the AP, and may also indicate that the target user equipment needs to set the specified data (target data). And sending to the AP, or the second offloading indication information may indicate that the target user equipment needs to activate the second user equipment side protocol stack to perform a related procedure of the offloading, which is described in detail later.

It should be noted that the specified data may be all or part of data that the target user equipment needs to send to the base station (or EPC), and the present invention is not particularly limited, and, when the target data is the target user equipment, it needs to be sent. When the portion of the data of the base station (or EPC) is given, the second offload indication information may include a target data indication cell, and the target data indication cell may indicate that the target data is required to be sent by the target user equipment to the base station (or Specific part of the data of the EPC, for example, the target data indicating that the cell can indicate the time domain resource corresponding to the target data Or a frequency domain resource, or a time domain resource or a frequency domain resource used to carry the target data when the target user equipment directly sends the target device to the base station.

In addition, the second offloading indication information may include an AP indicating cell indicating the AP, so that the target user equipment determines, according to the AP indication cell, the AP used by the offloading, where, if the target user equipment has not accessed the AP, The second offload indication information may further include an access indication cell, so that the target user equipment accesses the AP according to the AP indication cell and the access indication cell.

In the embodiment of the present invention, after the AP and the target user equipment perform the foregoing offload preparation, the acknowledgment information may be sent to the base station.

Therefore, after receiving the confirmation information, the base station can perform a traffic off operation.

Next, an operation when the base station performs offloading to the target user equipment (for example, among a plurality of user equipments) through the AP in the downlink will be described.

The base station can receive downlink data from the network side (eg, EPC) sent by the gateway device (eg, PDN-GW) and needs to be sent to the target user equipment (for example, through the S1 interface), and determine from the data that it needs to be sent through the AP. The downlink target data for the target user, hereinafter referred to as data A.

In the embodiment of the present invention, a bearer for transmitting data of the target user equipment is set between the base station and the gateway device (Case 1); or a plurality of the base station and the gateway device are configured to transmit the bearer. The bearer of the data of the target user equipment (Case 2).

Situation 1

The base station encapsulates the data A by using at least one protocol layer of the first base station side protocol stack and the second base station side protocol stack to generate a data packet A conforming to the GTP communication mode (an example of the first data packet), The data packet A carries a GTP TEID (hereinafter referred to as an AP side GTP TEID) corresponding to the target user equipment, which is allocated by the AP as described above, and is determined according to the second mapping relationship determined as described above. The downlink GTP tunnel corresponding to the GTP TEID on the AP side sends the data packet A to the AP.

After receiving the data packet A, the AP may perform decapsulation processing on the data packet A by using the first WLAN AP side protocol stack (or the first WLAN AP side protocol stack and the adaptation layer) to obtain the target user equipment. Corresponding AP-side GTP TEID and the data A, and determining that the data A needs to be sent to the target user equipment according to the AP-side GTP TEID and the second mapping relationship determined as described above, and thereafter, Encapsulating the data A by using the second WLAN AP side protocol stack (or the second WLAN AP side protocol stack and the adaptation layer) to generate a match a packet B (an example of a second packet) of the WLAN communication method, and transmitting the packet to the target user equipment by using a carrier (an example of the first carrier) used in the WLAN communication method

The target user equipment may receive the data packet B through the first carrier, and perform decapsulation processing on the data packet B by using at least one protocol layer of the first user equipment side protocol stack and the second user equipment side protocol stack. The data.

Situation 2

Since at least two bearers are provided between the base station and the gateway device, the user equipment needs to know the bearer to which each data carried in the data packet sent by the AP belongs, so as to reliably restore data from the network side, thereby, the AP The bearer to which the data sent by the base station belongs is also required to be learned. When the data packet sent to the target user equipment is encapsulated, an identifier (third bearer indication information) indicating the bearer to which the data belongs is added to the data packet, and the encapsulation process is performed. The description may be omitted or similar to the prior art. Here, in order to avoid redundancy, the description thereof will be omitted. Hereinafter, the procedure and method for the base station to notify the bearer to which the AP data belongs are mainly described.

Optionally, the second base station side protocol stack includes a mapping layer, where the mapping layer is used to determine a bearer to which the target data belongs, and

When the user equipment is associated with the at least two mobile devices, the base station transmits the target data to the user equipment by using the WLAN AP, including:

The base station determines, by the bearer mapping layer, the bearer to which the downlink target data belongs in the target data, and the bearer mapping layer generates the first bearer indication information, where the first bearer indication information is used to indicate the bearer to which the downlink target data belongs. ;

The base station sends the first bearer indication information to the WLAN AP, so that the user equipment determines, according to the first bearer indication information forwarded by the WLAN AP, the bearer to which the downlink target data belongs.

And sending, by the base station, the first bearer indication information to the WLAN AP, including:

The base station encapsulates the first bearer indication information and the downlink target data in the same data packet by using the bearer mapping layer, and sends the first bearer indication information to the WLAN AP.

Specifically, in the embodiment of the present invention, for example, the data A from the network side is composed of data Al~ data An, where n is the same as the number of bearers used to transmit data A between the base station and the gateway device, and the base station When the data packet is encapsulated (for example, through at least one layer of the base station protocol stack and the GTP protocol stack), the data packet is added to indicate that the data A1 to the data belongs to The indication information (the first bearer indication information) is carried, so that the AP can learn, according to the first bearer indication information, the bearer to which the data Al~data An sent by the base station belongs.

It should be noted that the MAC layer of the base station protocol stack has the function of identifying the bearer indicated by the data. Therefore, in the embodiment of the present invention, when the GTP protocol stack is aggregated on the MAC protocol stack of the base station protocol stack, the MAC layer may be adopted. And encapsulating the first bearer indication information in the data packet.

Furthermore, in the embodiment of the present invention, the data packet generated by the base station for encapsulating the data Al~ data An may be one or n, and the present invention is not particularly limited. In addition, in the case of generating n data packets, the n data packets may be transmitted to the AP through one GTP tunnel, or may be transmitted to the AP through n tunnels, and the present invention is not particularly limited.

In the embodiment of the present invention, a protocol layer (an example of a bearer mapping layer) for encapsulating the first bearer indication information in the data packet may be added to the base station protocol stack, and the GTP protocol stack is aggregated in the Hosting on the mapping layer. In addition, in the embodiment of the present invention, the bearer mapping layer may be disposed on the PDCP layer, or may be disposed between the PDCP layer and the RLC layer, or may be disposed between the RLC layer and the MAC layer, and the present invention is not particularly limited.

Therefore, the AP can learn, according to the first bearer indication information, the bearer to which the data D1 data Dn sent by the base station belongs. It should be noted that the MAC layer of the WiFi protocol stack has the function of identifying the bearer indicated by the data. Therefore, in the embodiment of the present invention, when the WiFi protocol stack of the AP is aggregated on the MAC protocol stack of the GTP protocol stack, the The MAC layer obtains the first 7-load indication information from the data packet. In addition, in the embodiment of the present invention, a protocol layer (an example of a bearer mapping layer) for acquiring the first bearer indication information from the data packet may be added to the GTP protocol stack, and the WiFi protocol stack is aggregated in the GTP protocol stack. Hosting on the mapping layer.

It should be noted that, if the bearer to which the data belongs is indicated by adding the bearer indication information in the data packet, the base station and the AP may determine, according to the first mapping relationship information and the second mapping relationship information determined as described above, User equipment to which data transmitted between each other belongs.

Optionally, when the user equipment corresponds to the at least two loads, the base station performs the target data transmission with the user equipment by using the WLAN AP, including:

The base station determines a second GTP tunnel corresponding to the bearer to which the target data belongs; the base station transmits the target data to the user equipment through the WLAN AP via the second GTP tunnel.

And determining, by the base station, a second GTP tunnel corresponding to the bearer to which the target data belongs, including: The base station receives the fourth mapping relationship information that is sent by the WLAN AP, where the fourth mapping relationship information is used to indicate a mapping relationship between the TEID of the downlink second GTP tunnel and the bearer to which the downlink target data belongs.

Determining, according to the fourth mapping relationship information, the downlink second GTP tunnel; and

The base station performs the transmission of the target data with the user equipment by using the WLAN AP by using the second GTP tunnel, including:

The base station sends the downlink target data to the WLAN AP by using the downlink second GTP tunnel, so that the WLAN AP determines the downlink according to the fourth mapping relationship information after receiving the downlink target data by using the downlink second GTP tunnel. The bearer to which the target data belongs, and determining the user equipment according to the bearer and the bearer information to which the downlink target data belongs, to send the downlink target data to the user equipment.

Specifically, in the embodiment of the present invention, n downlink GTP tunnels may be established between the base station and the AP, so that each downlink GTP tunnel is used only for transmitting downlink data on one bearer, and, in the embodiment of the present invention, The first offload information may further include bearer indication information, where the bearer indication information is used to indicate each bearer corresponding to the user equipment, and the AP may allocate an AP side GTP TEID for each downlink GTP tunnel, and notify each base station of each a mapping relationship between the GTP TEIDs of the APs and the downlink GTP tunnels, and the AP may determine a mapping relationship (fourth mapping relationship) between the bearers corresponding to the target user equipment and each downlink GTP tunnel, and thus, the base station The data Al~data An may be encapsulated according to the mapping relationship between the GTP TEIDs of the APs and the downlink GTP tunnels, and the mapping relationship between the bearers and the downlink GTP tunnels to generate n data packets. Each packet corresponding to each data is transmitted by a tunnel.

For example, the base station may encapsulate the AP side GTP TEID of the downlink GTP tunnel corresponding to the data A1 into the data packet A1, and send the data packet A1 to the AP. In a similar manner, the base station can generate a packet A2~data packet An and send it to the AP.

After the AP decapsulates the data packet A1, the AP can obtain the AP GTP TEID of the downlink GTP tunnel corresponding to the data A1, so that the downlink GTP tunnel for transmitting the data packet A1 can be determined. In addition, the AP may determine, according to the mapping relationship between the downlink GTP tunnel that transmits the data packet A1 and the bearer and the GTP tunnel determined as described above (the fourth mapping relationship), the AP belongs to the data A1 carried in the data packet A1. Hosted.

In a similar manner, the AP can determine the bearer to which the data A2~ data An belongs. thereby,

The AP may determine the bearer to which the data A2~the data belongs and the bearer information, and determine that the data is Downlink target data that needs to be sent to the target user equipment.

Thereafter, the AP may encapsulate the data Al~An through the second WLAN AP side protocol stack (or the second WLAN AP side protocol stack and the adaptation layer) to generate one or more data conforming to the WLAN communication mode. a packet (another example of the second data packet), and transmitting the one or more data packets to the target user equipment by using a carrier (an example of the first carrier) used by the wireless local area network communication method, where the data packet is in the data packet The indication information indicating the bearer to which the data Al~data An belongs may be carried.

The target user equipment may receive the one or more data packets through the first carrier, and pass the at least one protocol layer of the first user equipment side protocol stack and the second user equipment side protocol stack to the one or more data packets. Decapsulation processing is performed to acquire the data A from the network side.

Here, the data A from the network side is composed of data Al~data An, where n is the same as the number of bearers used to transmit data A between the base station and the gateway device, and the user equipment can carry the data packets carried by the AP. The indication information indicating the bearer to which the data A 1 to the data An belongs is obtained, and the bearer to which the data Al to the data An transmitted by the base station belongs is known.

It should be noted that the MAC layer of the user equipment protocol stack has the function of identifying the bearer indicated by the data. Therefore, in the embodiment of the present invention, when the WiFi protocol stack is aggregated on the MAC protocol stack of the user equipment protocol stack, the The MAC layer determines the bearer to which the data Al~data An belongs.

Alternatively, a protocol layer (an example of a bearer mapping layer) for determining a bearer to which the data Al~ data An belongs may be added to the user equipment protocol stack, and the WiFi protocol stack is aggregated on the bearer mapping layer.

In addition, in the embodiment of the present invention, the bearer mapping layer may be disposed on the PDCP layer, or may be disposed between the PDCP layer and the RLC layer, or may be disposed between the RLC layer and the MAC layer, and the present invention is not particularly Limited

Optionally, when the target data is part of the data on the bearer, the method further includes: the base station performing non-target data transmission with the user equipment by using the first base station side protocol stack, where the non-target data Is the data other than the target data among all the data on the bearer.

Specifically, when the downlink target data is part of downlink data on the at least one bearer, the method further includes: the base station performing encapsulation processing on the downlink non-target data by using the first base station side protocol stack to generate a fifth a data packet, the downlink non-target data is data other than the downlink target data in all downlink data on the at least one bearer; the base station passes the third carrier to the destination The target user equipment sends the fifth data packet, so that the target user equipment performs decapsulation processing on the fifth data packet by using the first user equipment side protocol stack to obtain the downlink non-target data, and according to the downlink non-target And the downlink target data, the at least one downlink data is determined, wherein the third carrier is a carrier used for communication between the base station and the user equipment.

For example, when the data A is part of all data from the network side and needs to be transmitted to the target user equipment, the base station also needs to pass the remaining part (hereinafter referred to as data C) through the carrier used for communication between the base station and the user equipment ( The example of the third carrier is transmitted to the target user equipment. The process and method may be the same as or similar to the prior art. Here, in order to avoid redundancy, the description thereof is omitted.

Thereby, the transmission process of the downlink data is completed.

FIG. 5 is a schematic interaction diagram of a method for transmitting downlink data according to an embodiment of the present invention. As shown in FIG. 5, at S210, the UE may send its MAC address to the MME.

At S220, the MME may send the MAC address of the UE to the base station.

At S230, the base station may send the MAC address of the UE and the base station side GTP TEID allocated to the UE to the AP.

At S240, the AP may send the AP-side GTP TEID allocated to the UE to the base station. At S250, the base station may encapsulate the AP side GTP TEID in a data packet, and send the data packet to the AP.

At S260, the AP determines, according to the GTP TEID of the AP side, that the data carried in the data packet needs to be sent to the UE.

At S270, the AP may send the data carried in the data packet to the UE according to the MAC address of the UE.

Next, an operation when the base station performs the offloading of the target user equipment (e.g., among the plurality of user equipments) by the AP in the uplink will be described.

The user equipment can determine the uplink target data that needs to be sent to the base station through the AP from the uplink data that needs to be sent to the base station (or the network side), hereinafter referred to as the number D.

In the embodiment of the present invention, a bearer for transmitting data of the target user equipment is set between the base station and the gateway device (Case 3); or, a plurality of the base station and the gateway device are configured to transmit the bearer. The bearer of the data of the target user equipment (Case 4).

Situation 3

The target user equipment encapsulates the data D by using at least one protocol layer of the first user equipment side protocol stack and the second user equipment side protocol stack to generate a wireless local area network communication. The packet D of the mode (an example of the fourth packet) is transmitted to the AP by the carrier (an example of the second carrier) used by the WLAN communication method.

After receiving the data packet D, the AP may perform decapsulation processing on the data packet D through the second WLAN AP side protocol stack (or the second WLAN AP side protocol stack and the adaptation layer) to obtain the data D. Then, the AP may determine that the data D needs to be sent to the base station according to the first offload indication information received as described above, and thus may pass the first WLAN AP side protocol stack (or the first WLAN AP side protocol stack and the adaptation layer). The data D is encapsulated to generate a data packet E (an example of the second data packet) conforming to the GTP communication method. The GTP TEID (base station side GTP TEID) corresponding to the target user equipment allocated by the base station is encapsulated in the data packet E, and the GTP TEID with the base station side may be determined according to the first mapping relationship determined as described above. The corresponding uplink GTP tunnel transmits the data packet E to the base station.

After receiving the data packet E, the base station may perform decapsulation processing on the data packet E by using at least one protocol layer of the first base station side protocol stack and the second base station side protocol stack to obtain the GTP TEID and the data D of the base station side. Determining, according to the base station side GTP TEID and the first mapping relationship determined as described above, that the data D is uplink data from the target user equipment, so that the base station can (for example, through the S1 interface) to the gateway device (for example, PDN) -GW) Sends the uplink data D that the target user equipment needs to send to the network side (for example, EPC).

Situation 4

Since at least two bearers are provided between the base station and the gateway device, the base station needs to know the bearer to which each data carried in the data packet sent by the AP belongs, so as to accurately transmit each data to the network side, thereby, the AP It is also necessary to know the bearer to which each data sent by the target user equipment belongs. The target user equipment may add an identifier indicating the bearer to which each data belongs when the packet is sent to the AP data packet.

Optionally, the second base station side protocol stack includes a bearer mapping layer, where the bearer mapping layer is used to determine a bearer to which the target data belongs, and

The base station obtains the second bearer indication information that is forwarded by the WLAN AP by using the bearer mapping layer, where the second bearer indication information is used to indicate the bearer to which the uplink target data belongs in the target data; the base station according to the second bearer indication And determining, by the user equipment, the bearer to which the uplink target data belongs, where the second bearer indication information is determined by the user equipment and sent to the WLAN AP. And the acquiring, by the base station, the second bearer indication information that is forwarded by the WLAN AP by using the bearer mapping layer, including:

The base station obtains the second bearer indication information from the data packet encapsulated with the uplink target data by using the bearer mapping layer.

Specifically, in the embodiment of the present invention, for example, the data D that the target user equipment needs to send to the network side is composed of the data D1 to the data Dn, where n carries the bearer used for transmitting the data D between the base station and the gateway device. The number of the same is the same, the target user equipment can add an indication to the data packet indicating the bearer to which the data D1~Dn belongs, when the data packet is encapsulated (for example, through at least one layer of the user equipment protocol stack and the WiFi protocol stack). The information (the second bearer indication information), so that the AP can learn the bearer to which the data 01 to the data Dn sent by the target user equipment belongs according to the second bearer indication information.

It should be noted that the MAC layer of the user equipment protocol stack has the function of identifying the bearer indicated by the data. Therefore, in the embodiment of the present invention, when the WiFi protocol stack is aggregated on the MAC protocol stack of the user equipment protocol stack, the The MAC layer encapsulates the second bearer indication information in the data packet.

Further, in the embodiment of the present invention, the data packets generated by the encapsulation processing of the data D1 to the data Dn may be one or n, and the present invention is not particularly limited.

In addition, in the embodiment of the present invention, a protocol layer (an example of a bearer mapping layer) for encapsulating the second bearer indication information in the data packet may be added to the user equipment protocol stack, and the WiFi protocol stack may be Aggregation is on the bearer mapping layer. In the embodiment of the present invention, the bearer mapping layer may be disposed on the PDCP layer, or between the PDCP layer and the RLC layer, or between the RLC layer and the MAC layer. The present invention is not particularly limited.

Therefore, the AP can learn, according to the second bearer indication information, the bearer to which the data D1~Dn transmitted by the user equipment belongs. It should be noted that the MAC layer of the WiFi protocol stack of the AP has the function of identifying the bearer indicated by the data. Therefore, in the embodiment of the present invention, when the GTP protocol stack of the AP is aggregated on the MAC protocol stack of the WiFi protocol stack, The second bearer indication information is obtained from the data packet by using the MAC layer. In addition, in the embodiment of the present invention, a protocol layer (an example of a bearer mapping layer) for obtaining the second bearer indication information from the data packet may be added to the GTP protocol stack, and the GTP protocol stack is aggregated in the bearer. On the mapping layer.

It should be noted that, if the bearer to which the data belongs is indicated by adding the bearer indication information in the data packet, the base station and the AP may determine, according to the first mapping relationship information and the second mapping relationship information determined as described above, User equipment to which data transmitted between each other belongs. Optionally, when the user equipment corresponds to the at least two seven-carriers, the base station performs the target data transmission with the user equipment by using the WLAN AP, including:

And determining, by the base station, a second GTP tunnel corresponding to the bearer to which the target data belongs, including:

The base station determines an uplink second GTP tunnel corresponding to the bearer to which the uplink target data belongs; the base station sends a third mapping relationship information to the WLAN AP, where the third mapping relationship information is used to indicate the TEID of the uplink second GTP tunnel a mapping relationship with a bearer to which the uplink target data belongs;

When receiving the data sent by the WLAN AP by using the uplink second GTP tunnel, the base station determines, according to the third mapping relationship information, a bearer to which the received data belongs;

And determining, according to the bearer to which the received data belongs, the target uplink data sent by the user equipment by using the data received by the uplink second GTP tunnel.

Specifically, in the embodiment of the present invention, the target user equipment may add the data D1 data Dn to the data packet when the data packet is encapsulated (for example, through at least one layer of the user equipment protocol stack and the WiFi protocol stack). The indication information (the second bearer indication information) of the bearer that belongs to the AP, so that the AP can learn the bearer to which the data D1~Dn transmitted by the target user equipment belongs according to the second bearer indication information.

It should be noted that the MAC layer of the user equipment protocol stack has the function of identifying the bearer indicated by the data. Therefore, in the embodiment of the present invention, when the WiFi protocol stack of the UE is aggregated on the MAC protocol stack of the user equipment protocol stack, Through the MAC layer, the second bearer indication information is encapsulated in the data packet.

In addition, in the embodiment of the present invention, a protocol layer (an example of a bearer mapping layer) for encapsulating the second bearer indication information in the data packet may be added to the user equipment protocol stack, and the WiFi protocol stack may be Aggregation is on the bearer mapping layer. In the embodiment of the present invention, the bearer mapping layer can be set The PDCP layer may be disposed between the PDCP layer and the RLC layer, or may be disposed between the RLC layer and the MAC layer, and the present invention is not particularly limited.

The AP may learn, according to the second bearer indication information, the bearer to which the data Ol~$ Dn sent by the base station belongs. The AP may determine, according to the identity information of the user equipment, that the data D1 data Dn needs to be sent to the base station.

An uplink GTP tunnel can be established between the base station and the AP, so that each uplink GTP tunnel is only used to transmit uplink data on one bearer. The base station can allocate a base station side GTP TEID for each uplink GTP tunnel, and notify the AP to notify the AP. And the base station can determine the mapping relationship between the corresponding each of the user equipments and each of the uplink GTP tunnels (the third mapping relationship), and notify the AP, so that the AP can use the GTP TEID and each uplink of each of the base stations. The mapping relationship between the GTP tunnels and the mapping relationship between the bearers and the uplink GTP tunnels, the data D1 data Dn is encapsulated to generate n data packets, and each data packet is transmitted through a tunnel corresponding to each data.

For example, the AP may encapsulate the base station side GTP TEID of the uplink GTP tunnel corresponding to the data D1 into the data packet D1, and send the data packet D1 to the base station. In a similar manner, the AP can generate a packet D2~data packet Dn and send it to the base station.

After the base station decapsulates the data packet D1, the base station side GTP TEID of the uplink GTP tunnel corresponding to the data D1 can be obtained, so that the uplink GTP tunnel for transmitting the data packet D1 can be determined, and further, it can be determined according to the above. The third mapping relationship determines the bearer to which the uplink data belongs, and the user equipment that sends the uplink data.

Thereafter, the base station that the base station can send (for example, through the S1 interface) to the gateway device (for example, the PDN-GW) needs to send uplink data to the network side (for example, EPC), and each data is sent. The corresponding bearer is sent to the network side.

Specifically, when the data D is a part of all data that the target user equipment needs to send to the network side, the target user equipment also needs to pass the remaining part (hereinafter referred to as data F) for communication between the base station and the user equipment. The carrier (an example of the fourth carrier) is transmitted to the base station, and the process and method may be the same as or similar to the prior art. Here, in order to avoid redundancy, the description thereof is omitted. Thereby, the transmission process of the uplink data is completed.

FIG. 6 is a schematic interaction diagram of a method for transmitting uplink data according to an embodiment of the present invention. As shown in FIG. 6, at S310, the UE may send its MAC address to the MME.

At S320, the MME may send the MAC address of the UE to the base station.

At S330, the base station may set the MAC address of the UE and the base station side GTP allocated to the UE.

The TEID is sent to the AP.

At S340, the AP may send the AP-side GTP TEID allocated to the UE to the base station. At S350, the UE may send a data packet to the AP.

In S360, the AP may determine, according to the MAC address, that the data carried in the data packet needs to be sent to the base station, and may encapsulate the base station side GTP TEID in the data packet, and send the data packet to the base station.

At S370, the base station determines, according to the GTP TEID of the base station side, that the data carried in the data packet is from the UE.

It should be noted that the above describes an embodiment in which data is directly transmitted between the AP and the user equipment by communicating with the base station (hereinafter, in order to facilitate the division of the AP 1 ), but the present invention is not limited thereto, for example, when the user When the device does not communicate with the base station (hereinafter, in order to facilitate the division of the AP 2), the base station may transmit the downlink data to the AP I when the downlink is downlink, and the AP 1 transmits the downlink data to the AP through the wireless local area network communication mode. 2. Therefore, the AP 2 can transmit the downlink data to the user equipment. In the uplink, the user equipment can transmit the uplink data to the AP 2, and the AP 2 transmits the downlink data to the AP 1 through the WLAN communication mode, so that the AP I can transmit the uplink data to the base station.

Moreover, in the embodiment of the present invention, data may be directly transmitted between the AP 1 and the AP 2, and data may be transmitted through other relay devices (for example, one or more APs), which is not specifically limited.

A method for transmitting data according to an embodiment of the present invention, through a base station, determining that a WLAN needs to be passed

After the AP splits the data of the UE, the data of the UE (including the uplink data or the downlink data) is transmitted between the GTP tunnel and the WLAN AP, so that the offload anchor point is located at the base station, and the base station determines the user equipment and the WLAN AP. The channel bandwidth used by the communication enables the base station to determine the offload traffic according to the channel bandwidth, thereby improving the offloading effect, and since the data split by the WLAN AP arrives at the gateway device via the base station, the use of the communication connection through the WLAN can be ensured. The gateway device is the same as the gateway device used when establishing a communication connection through the base station, However, business continuity can be guaranteed and the user experience can be improved.

Next, an operation when the WLAN AP performs data transmission in accordance with the method of transmitting data according to the embodiment of the present invention will be described.

FIG. 7 is a schematic flowchart of a method 400 for transmitting data according to an embodiment of the present invention. The method 400 is performed by a wireless local area network access point WLAN AP in a communication system, where the communication system further includes a base station and user equipment. The base station and the gateway device are provided with a bearer for transmitting data of the user equipment, and the base station and the WLAN AP are provided with a general packet radio service tunneling protocol GTP tunnel, and the method includes:

S420, the target data of the user equipment is transmitted with the base station by using the GTP tunnel, where the target data is determined according to a channel bandwidth used for communication between the user equipment and the WLAN AP, where the target data is on the bearer. All or part of the data.

Optionally, before the transmitting, by the GTP tunnel, the target data of the user equipment with the base station, the method 400 further includes:

Determining, according to a channel bandwidth that the WLAN AP can support and the first capability information, a channel bandwidth used for communication with the user equipment;

The first channel bandwidth indication information is sent to the base station, where the first channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP.

Sending, to the base station, second capability information indicating a channel bandwidth that the WLAN AP can support, so that the base station determines, according to the first capability information and the second capability information, the communication between the user equipment and the WLAN AP. Channel bandwidth, where the first capability indication information is sent by the user to the base station, and is used to indicate a channel bandwidth that the user equipment can support.

Optionally, the method 400 further includes:

And transmitting channel switching information to the base station, where the channel switching information is used to indicate that a channel used for communication between the user equipment and the WLAN AP is switched and a time for completing the handover.

Optionally, the transmitting, by the GTP tunnel, the target data of the user equipment with the base station, including:

S410. The first offloading indication information sent by the base station is received, where the first offloading indication information is used. Instructing the WLAN AP to transmit data between the base station and the user equipment, where the first offload indication information includes identity information of the user equipment, where one identity information is used to uniquely indicate a user equipment in the communication system

And according to the first offload indication information, the target data of the user equipment is transmitted with the base station via the GTP tunnel.

Determining, according to user information of the user equipment, a first GTP tunnel corresponding to the user equipment;

The target data of the user equipment is transmitted with the base station via the first GTP tunnel.

Optionally, when the user equipment corresponds to the at least two loads, the target data of the user equipment is transmitted with the base station by using the GTP tunnel, including:

Receiving the first bearer indication information sent by the base station, and forwarding the first bearer indication information to the user equipment, where the first bearer indication information is used to indicate a bearer to which the downlink target data belongs; or receive the second sent by the user equipment Carrying the indication information, and forwarding the second bearer indication information to the base station, where the second bearer indication information is used to indicate the bearer to which the uplink target data belongs.

Transmitting, by the GTP tunnel, the target data of the user equipment with the base station, including: inputting data acquired from the base station to a first WLAN AP side protocol stack, and transmitting data output from the first WLAN AP side protocol stack Up to the second WLAN AP side protocol stack, the data output from the second WLAN AP side protocol stack is sent to the user equipment; or

The data obtained from the user equipment is input to the second WLAN AP side protocol stack, and the data output from the second WLAN AP side protocol stack is transmitted to the first WLAN AP side protocol stack, and the first WLAN AP side is to be used. The data output by the protocol stack is sent to the base station.

Optionally, an adaptation layer is configured between the first WLAN AP side protocol stack and the second WLAN AP side protocol stack, where the adaptation layer is configured to perform data on the first WLAN AP side protocol stack. Conversion processing between the second WLAN AP side protocol stacks;

The transmitting, by the GTP tunnel, the target data of the user equipment with the base station, including: The data obtained from the base station is input to the first WLAN AP side protocol stack, and the data format of the data output from the first WLAN AP side protocol stack is converted by the adaptation layer to be identifiable by the second WLAN AP side protocol stack. The data format is transmitted to the second WLAN AP side protocol stack, and the data output from the second WLAN AP side protocol stack is sent to the user equipment; or the data acquired from the user equipment is input to the second WLAN AP. a side protocol stack, by which the data format of the data output by the second WLAN AP side protocol stack is converted into a data format that can be identified by the first WLAN AP side protocol stack, and transmitted to the first WLAN AP side. The protocol stack sends data output from the first WLAN AP side protocol stack to the base station.

Optionally, when the user equipment is associated with the at least two bearers, the transmitting the target data of the user equipment with the base station by using the GTP tunnel, including:

Determining, according to the identity information of the user equipment, a second GTP tunnel corresponding to the bearer to which the target data belongs;

The target data of the user equipment is transmitted with the base station via the second GTP tunnel.

According to the method for transmitting data according to the embodiment of the present invention, after the base station determines that the data of the UE needs to be offloaded by the WLAN AP, the UE transmits data of the UE (including uplink data or downlink data) between the GTP tunnel and the WLAN AP, thereby enabling the data to be transmitted. The shunt anchor point is located at the base station, and the channel bandwidth used by the user equipment to communicate with the WLAN AP is determined by the base station, so that the base station can determine the offload traffic according to the channel bandwidth, thereby improving the offloading effect, and the data split by the WLAN AP When the gateway device is reached via the base station, it is ensured that the gateway device used when establishing the communication connection through the WLAN is the same as the gateway device used when establishing the communication connection through the base station, thereby ensuring service continuity and improving the user experience.

Next, an operation when the user equipment performs data transmission in the method of transmitting data according to the embodiment of the present invention will be described.

FIG. 8 is a schematic flowchart of a method 500 for transmitting data according to an embodiment of the present invention. The method 500 is performed by a user equipment in a communication system, and the communication system further includes a base station and a wireless local area network access point WLAN AP. The base station and the gateway device are provided with a bearer for transmitting data of the user equipment, and the base station and the WLAN AP are provided with a general packet radio service tunneling protocol GTP tunnel, and the method includes:

S520, the target data is transmitted by using the WLAN AP, where the target data is determined according to a channel bandwidth used by the user equipment to communicate with the WLAN AP, where the target data is in the WLAN AP and the The base stations are transmitted between the GTP tunnels. The target data is all or part of the data on the bearer.

Optionally, before performing the transmission of the target data with the base station by using the WLAN AP, the method further includes:

Determining, according to a channel bandwidth that the user equipment can support and the second capability information, a channel bandwidth used for communication with the WLAN AP;

Transmitting, by the base station, first capability information indicating a channel bandwidth that the user equipment can support, so that the base station determines, according to the first capability information and the second capability information, that the user equipment is used for communication with the WLAN AP. Channel bandwidth, where the second capability indication information is sent by the WLAN AP to the base station, and is used to indicate a channel bandwidth that the WLAN AP can support.

Optionally, the transmitting, by the WLAN AP, the target data is transmitted by the base station, including: receiving, by the base station, second channel bandwidth indication information, where the second channel bandwidth indication information is used to indicate the user equipment and the WLAN AP The channel bandwidth used for communication between;

Determining uplink target data according to the second channel bandwidth indication information, where the target uplink data is all or part of uplink data on the bearer;

Sending the uplink target data to the WLAN AP, so that the WLAN AP sends the uplink target data to the base station via the GTP tunnel.

Optionally, the method further includes:

Optionally, the transmitting, by the WLAN AP, the target data is transmitted by the base station, including:

S510: Receive second offloading indication information sent by the base station, where the second offloading indication information is used to indicate that data is transmitted between the user equipment and the WLAN AP.

And transmitting, according to the second offloading indication information, the target data to the base station via the WLAN AP.

Optionally, the user equipment has a first user equipment side protocol stack and a second user equipment side protocol. The first user equipment side protocol stack is configured to implement data processing for communication with the base station, and the second user equipment side protocol stack is configured to be implemented between the user equipment side and the WLAN AP. Data processing of the communication, wherein the second user equipment side protocol stack is connected to at least one protocol layer of the first user equipment side protocol stack, and

The transmitting of the target data with the base station via the WLAN AP includes:

The target data is transmitted with the base station via the WLAN AP through at least one layer of the first user equipment side protocol stack and the second user equipment side protocol stack.

Passing at least one layer of the first user equipment side protocol stack and the second user equipment side protocol stack to transmit target data to the base station via the WLAN, including:

Inputting the uplink target data to at least one protocol layer of the first user equipment side protocol stack, and converting, by using the adaptation layer, a data format of data output from at least one protocol layer of the first user equipment side protocol stack to the first The data format that can be identified by the user equipment side protocol stack is transmitted to the second user equipment side protocol stack, and the data output from the second user equipment side protocol stack is sent to the WLAN AP for sending to the WLAN AP through the WLAN AP. The base station, or

Transmitting data acquired from the WLAN AP to the second user equipment side protocol stack, and converting, by using the adaptation layer, a data format of data output from the second user equipment side protocol stack to the first user equipment side protocol stack The data format that can be identified by the at least one protocol layer is transmitted to at least one protocol layer of the first user equipment side protocol stack to obtain downlink target data.

Optionally, the second user equipment side protocol stack includes a bearer mapping layer, where the bearer mapping layer is used to determine a bearer to which the target data belongs, and

When the user equipment corresponds to the at least two bearers, the transmitting the target data with the base station via the WLAN AP includes:

And determining, by the bearer mapping layer, the bearer to which the uplink target data belongs in the target data, and generating, by using the bearer mapping layer, the second bearer indication information, where the second bearer indication information is used to indicate the bearer to which the uplink target data belongs And sending the second bearer indication information to the WLAN AP, so that the base station determines, according to the second bearer indication information that is forwarded by the WLAN AP or the uplink second GTP tunnel corresponding to the bearer to which the uplink target data belongs. The uplink target data belongs to Carrying; or

The first bearer indication information that is sent by the WLAN AP is obtained by using the bearer mapping layer, where the first bearer indication information is used to indicate the bearer to which the downlink target data belongs in the target data, and is determined according to the first bearer indication information. The bearer to which the downlink target data belongs, the first bearer indication information is obtained by the WLAN AP from the base station, or the WLAN AP is determined according to the downlink second GTP tunnel corresponding to the bearer to which the downlink target data belongs.

Optionally, the first user equipment side protocol stack includes a reordering layer, where the reordering layer is used to determine a location of the target data in all data on the bearer, and at least one protocol of the first user equipment side protocol stack The layer is the reordering layer, and

And determining, by the reordering layer, a location of the uplink data in the target data in all the uplink data on the bearer, and generating, by using the reordering layer, second location indication information, where the second location indication information is used to indicate the uplink Positioning the target data in all the uplink data on the bearer, and sending the second location indication information to the WLAN AP, so that the base station determines, according to the second location indication information forwarded by the WLAN AP, that the uplink target data is in the The location in all upstream data on the bearer; or

And obtaining, by the reordering layer, the first location indication information that is forwarded by the WLAN AP, where the first location indication information is used to indicate a location of the downlink target data in the target data in all downlink data on the bearer, and according to the The first location indication information determines a location of the downlink target data in all downlink data on the bearer, where the first location indication information is determined by the base station and sent to the WLAN AP.

According to the method for transmitting data according to the embodiment of the present invention, after the base station determines that the data of the UE needs to be offloaded by the WLAN AP, the UE transmits data of the UE (including uplink data or downlink data) between the GTP tunnel and the WLAN AP, thereby enabling the data to be transmitted. The shunt anchor point is located at the base station, and the channel bandwidth used by the user equipment to communicate with the WLAN AP is determined by the base station, so that the base station can determine the offload traffic according to the channel bandwidth, thereby improving the offloading effect, and the data split by the WLAN AP When the gateway device is reached via the base station, it is ensured that the gateway device used when establishing the communication connection through the WLAN is the same as the gateway device used when establishing the communication connection through the base station, thereby ensuring service continuity and improving the user experience. Next, an apparatus for transmitting data according to an embodiment of the present invention will be described in detail with reference to FIGS. 9 through 11. FIG. 9 shows a schematic block diagram of an apparatus 600 for transmitting data in accordance with an embodiment of the present invention. Between the device 600 and the gateway device, a bearer for transmitting data of the user equipment is provided, and the device 600 and the wireless local area network access point WLAN AP are provided with a general packet radio service tunneling protocol GTP tunnel, and the device 600 includes:

a first base station side protocol stack 610, configured to implement data processing for communication with the user equipment; a second base station side protocol stack 620, configured to implement data processing for communication with the WLAN AP, where the second base station The side protocol stack 620 is connected to at least one protocol layer of the first base station side protocol stack 610;

a determining unit 640, configured to determine a channel bandwidth used by the user equipment to communicate with the WLAN AP;

The transceiver unit 630 is connected to the second base station side protocol stack 620, and configured to perform target data transmission with the user equipment by using the WLAN AP according to the channel bandwidth determined by the determining unit 640. The target data is all or part of the data on the bearer.

Optionally, the transceiver unit 630 is further configured to receive the first channel bandwidth indication information sent by the user equipment or the WLAN AP, where the first channel bandwidth indication information is used to indicate communication between the user equipment and the WLAN AP. The channel bandwidth used, which is determined by the user equipment after negotiating with the WLAN AP;

The determining unit 640 is specifically configured to determine, according to the first channel bandwidth indication information, a channel bandwidth used by the user equipment to communicate with the WLAN AP.

Optionally, the transceiver unit 630 is further configured to receive first capability information that is sent by the user equipment to indicate a channel bandwidth that the user equipment can support, and receive, by the WLAN AP, an indication that the WLAN AP can support. Second capability information of the channel bandwidth;

The determining unit 640 is specifically configured to determine, according to the first capability information and the second capability information, a channel bandwidth used by the user equipment to communicate with the WLAN AP.

Optionally, the transceiver unit 630 is further configured to send, to the user equipment, second channel bandwidth indication information, where the second channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP, so that And determining, by the user equipment, the uplink target data according to the second channel bandwidth indication information, where the target uplink data is all or part of the uplink data on the bearer; the transceiver unit 630 is specifically configured to receive the WLAN by using the GTP tunnel. The uplink target data sent by the AP, where the uplink target data is sent by the user equipment to the WLAN AP.

Optionally, the determining unit 640 is further configured to determine downlink target data according to the channel bandwidth, The target downlink data is all or part of downlink data on the bearer;

The transceiver unit 630 is specifically configured to send the downlink target data to the WLAN AP via the GTP tunnel, so that the WLAN AP forwards the downlink target data to the user equipment.

Optionally, the transceiver unit 630 is further configured to receive channel switching information sent by the user equipment or the WLAN AP, where the channel switching information is used to indicate that a channel used for communication between the user equipment and the WLAN AP is switched and completed. The time of the switch;

The transceiver unit 630 is specifically configured to perform target data transmission with the user equipment by using the WLAN AP according to the channel bandwidth and the channel switching indication information.

Optionally, the transceiver unit 630 is further configured to send the first offloading indication information to the WLAN AP, where the first offloading indication information is used to indicate that the WLAN AP transmits data between the base station and the user equipment, where the first offloading The indication information includes identity information of the user equipment, wherein one identity information is used to uniquely indicate a user equipment in the communication system.

Optionally, the transceiver unit 630 further sends a second offload indication information to the user equipment, where the second offload indication information is used to indicate that data is transmitted between the user equipment and the WLAN AP.

Optionally, the determining unit 640 is further configured to determine a first GTP tunnel corresponding to the user equipment;

The transceiver unit 630 is specifically configured to perform target data transmission with the user equipment by using the WLAN AP according to the channel bandwidth.

Optionally, when the user equipment corresponds to at least two loads, the determining unit 640 is further configured to determine a second GTP tunnel corresponding to the load to which the target data belongs;

The transceiver unit 630 is specifically configured to perform transmission of the target data with the user equipment by using the WLAN AP according to the channel bandwidth.

Optionally, the second base station side protocol stack 620 includes an adaptation layer, where the adaptation layer is configured to perform data on at least one protocol layer of the first base station side protocol stack 610 and the second base station side protocol stack 620. The second base station side protocol stack 620 is connected to the at least one protocol layer of the first base station side protocol stack 610 through the adaptation layer.

Optionally, the second base station side protocol stack 620 includes a mapping layer, where the mapping layer is used to determine a bearer to which the target data belongs, and

When the user equipment corresponds to the at least two bearers, the determining unit 640 is specifically configured to determine downlink target data according to the channel bandwidth, and determine, by using the bearer mapping layer, a bearer to which the downlink target data belongs, and pass the The bearer mapping layer generates first bearer indication information, where the first bearer The indication information is used to indicate the bearer to which the downlink target data belongs;

The transceiver unit 630 is further configured to send the first bearer indication information to the WLAN AP, so that the user equipment determines, according to the first bearer indication information forwarded by the WLAN AP, the bearer to which the downlink target data belongs.

When the user equipment is associated with the at least two carriers, the determining unit 640 is configured to obtain, by using the bearer mapping layer, second bearer indication information that is forwarded by the WLAN AP, where the second bearer indication information is used to indicate an uplink target. The bearer to which the data belongs, the uplink target data is determined according to the channel bandwidth;

And determining, according to the second bearer indication information, a bearer to which the uplink target data belongs, where the second bearer indication information is determined by the user equipment and sent to the WLAN AP.

Optionally, the first base station side protocol stack 610 includes a reordering layer, where the reordering layer is used to determine a location of the target data in all data on the bearer, and at least one protocol of the first base station side protocol stack 610. The layer is the reordering layer, and

The determining unit 640 is further configured to determine downlink target data according to the channel bandwidth, and determine, by using the reordering layer, a location of the downlink target data in all downlink data on the bearer, and generate a first through the reordering layer. Location indication information, where the first location indication information is used to indicate a location of the downlink target data in all downlink data on the bearer;

The transceiver unit 630 is further configured to send the first location indication information to the WLAN AP, so that the user equipment determines, according to the first location indication information forwarded by the WLAN AP, the downlink target data in all downlink data on the bearer. s position.

The determining unit 640 is further configured to: obtain, by using the reordering layer, second location indication information that is forwarded by the WLAN AP, where the second location indication information is used to indicate a location of the uplink target data in all uplink data on the bearer, where The uplink target data is determined according to the channel bandwidth;

And determining, according to the second location indication information, a location of the uplink target data in all uplink data on the bearer, where the second location indication information is determined by the user equipment and sent to the WLAN AP. The apparatus 600 for transmitting data according to an embodiment of the present invention may correspond to a base station in the method of the embodiment of the present invention, and each unit in the apparatus 600 for transmitting data and the other operations and/or functions described above are respectively implemented for The corresponding process of the method 100 in 4, for the sake of cleaning, will not be repeated here.

An apparatus for transmitting data according to an embodiment of the present invention, through a base station, determining that a WLAN needs to be passed

After the AP splits the data of the UE, the data of the UE (including the uplink data or the downlink data) is transmitted between the GTP tunnel and the WLAN AP, so that the offload anchor point is located at the base station, and the base station determines the user equipment and the WLAN AP. The channel bandwidth used by the communication enables the base station to determine the offload traffic according to the channel bandwidth, thereby improving the offloading effect, and since the data split by the WLAN AP arrives at the gateway device via the base station, the use of the communication connection through the WLAN can be ensured. The gateway device is the same as the gateway device used when establishing a communication connection through the base station, thereby ensuring business continuity and improving the user experience.

FIG. 10 shows a schematic block diagram of an apparatus 700 for transmitting data in accordance with an embodiment of the present invention. The apparatus 700 and the base station are provided with a general packet radio service tunneling protocol GTP tunnel, and a bearer for transmitting data of the user equipment is provided between the base station and the gateway device. As shown in FIG. 10, the apparatus 700 includes:

The first WLAN AP side protocol stack 710 is configured to implement data processing for communication with the base station, and the second WLAN AP side protocol stack 720 is connected to the first WLAN AP side protocol stack 710 for implementing the user equipment. Data processing between communications;

The transceiver unit 730 is connected to the first WLAN AP side protocol stack 710 and the second WLAN AP side protocol stack 720, and is configured to transmit target data of the user equipment to the base station via the GTP tunnel, where the target data is According to the channel bandwidth used by the communication between the user equipment and the WLAN AP, the target data is all or part of the data on the bearer.

Optionally, the transceiver unit 730 is further configured to receive first capability information that is sent by the user equipment to indicate a channel bandwidth that the user equipment can support;

The device 700 also includes:

a determining unit 740, configured to determine, according to a channel bandwidth that the WLAN AP can support and the first capability information, a channel bandwidth used for communication with the user equipment;

The transceiver unit 730 is further configured to send the first channel bandwidth indication information to the base station, where the first channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP. Optionally, the transceiver unit 730 is further configured to send, to the base station, second capability information that is used to indicate a channel bandwidth that the WLAN AP can support, so that the base station determines, according to the first capability information and the second capability information, The channel bandwidth used by the user equipment to communicate with the WLAN AP, where the first capability indication information is sent by the user to the base station, and is used to indicate a channel bandwidth that the user equipment can support.

Optionally, the transceiver unit 730 is further configured to send channel switching information to the base station, where the channel switching information is used to indicate that a channel used for communication between the user equipment and the WLAN AP is switched, and a time for completing the handover.

Optionally, the transceiver unit 730 is further configured to receive the first offloading indication information sent by the base station, where the first offloading indication information is used to indicate that the WLAN AP transmits data between the base station and the user equipment, where the first offloading The indication information includes identity information of the user equipment, where one identity information is used to uniquely indicate a user equipment in the communication system;

And transmitting, according to the first offload indication information, the target data of the user equipment with the base station via the GTP tunnel.

Optionally, the apparatus 700 further includes: a determining unit 740, configured to determine, according to user information of the user equipment, a first GTP tunnel corresponding to the user equipment;

The transceiver unit 730 is specifically configured to transmit target data of the user equipment with the base station via the first GTP tunnel.

Optionally, when the user equipment corresponds to the at least two loads, the transceiver unit 730 is further configured to receive the first bearer indication information sent by the base station, and forward the first bearer indication information to the user equipment, where The first bearer indication information is used to indicate the bearer to which the downlink target data belongs; or

The transceiver unit 730 is further configured to receive the second bearer indication information sent by the user equipment, and forward the second bearer indication information to the base station, where the second bearer indication information is used to indicate the bearer to which the uplink target data belongs.

Optionally, an adaptation layer is configured between the first WLAN AP side protocol stack 710 and the second WLAN AP side protocol stack 720, where the adaptation layer is configured to perform data on the first WLAN AP side protocol stack. Conversion processing between the 710 and the second WLAN AP side protocol stack 720.

Optionally, when the user equipment corresponds to the at least two devices, the apparatus 700 further includes: a determining unit 740, configured to determine, according to the identity information of the user equipment, a bearer corresponding to the bearer to which the target data belongs a second GTP tunnel;

The transceiver unit 730 is specifically configured to transmit the user with the base station via the second GTP tunnel. The target data of the device.

The apparatus 700 for transmitting data according to an embodiment of the present invention may correspond to an AP in the method of the embodiment of the present invention, and each unit in the apparatus 700 for transmitting data and the other operations and/or functions described above are respectively implemented for The corresponding process of the method 400 in the seventh embodiment, in order to clean the data, the device for transmitting data according to the embodiment of the present invention, after the base station determines that the data of the UE needs to be shunted through the WLAN AP, passes the GTP tunnel and the WLAN AP. The data of the UE (including the uplink data or the downlink data) is transmitted between the base station, and the channel bandwidth used by the user equipment to communicate with the WLAN AP is determined by the base station, so that the base station can make the base station according to the channel bandwidth. Determining the offload traffic, thereby improving the offloading effect, and since the data split by the WLAN AP arrives at the gateway device via the base station, it can ensure that the gateway device used when establishing the communication connection through the WLAN is the same as the gateway device used when establishing the communication connection through the base station , thereby ensuring business continuity and improving user body .

Figure 11 shows a schematic block diagram of an apparatus 800 for transmitting data in accordance with an embodiment of the present invention. As shown in Figure 11, the apparatus 800 includes:

The first user equipment side protocol stack 810 is configured to implement data processing for communication with the base station, where a bearer for transmitting data of the user equipment is provided between the base station and the gateway device, and the base station is connected to the wireless local area network. A general packet radio service tunneling protocol GTP tunnel is established between the ingress WLAN APs;

The second user equipment side protocol stack 820 is configured to implement data processing for communication with the WLAN AP, where the second user equipment side protocol stack 820 is connected to at least one protocol layer of the first user equipment side protocol stack 810. ;

The transceiver unit 830 is connected to the second user equipment side protocol stack 820 for using the WLAN.

And performing, by the AP, the transmission of the target data, where the target data is determined according to a channel bandwidth used by the user equipment to communicate with the WLAN AP, where the target data is in the WLAN

The AP and the base station are transmitted via the GTP tunnel, and the target data is all or part of data on the bearer.

Optionally, the transceiver unit 830 is further configured to receive second capability information that is sent by the WLAN AP to indicate a channel bandwidth that the WLAN AP can support;

The apparatus 800 also includes:

a determining unit 840, configured to: according to a channel bandwidth that the user equipment can support, and the second capability Information, determining the channel bandwidth used for communication with the WLAN AP;

The transceiver unit 830 is further configured to send the first channel bandwidth indication information to the base station, where the first channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP.

Optionally, the transceiver unit 830 is further configured to send, to the base station, first capability information that is used to indicate a channel bandwidth that the user equipment can support, so that the base station determines, according to the first capability information and the second capability information, The channel bandwidth used by the user equipment to communicate with the WLAN AP, where the second capability indication information is sent by the WLAN AP to the base station, and is used to indicate a channel bandwidth that the WLAN AP can support.

Optionally, the transceiver unit 830 is further configured to receive, by the base station, second channel bandwidth indication information, where the second channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP;

The apparatus 800 also includes:

The determining unit 840 is configured to determine uplink target data according to the second channel bandwidth indication information, where the target uplink data is all or part of uplink data on the bearer;

The transceiver unit 830 is specifically configured to send the uplink target data to the WLAN AP, so that the WLAN AP sends the uplink target data to the base station via the GTP tunnel.

Optionally, the transceiver unit 830 is further configured to send channel switching information to the base station, where the channel switching information is used to indicate that a channel used for communication between the user equipment and the WLAN AP is switched, and a time for completing the handover.

Optionally, the transceiver unit 830 is further configured to receive the second offloading indication information sent by the base station, where the second offloading indication information is used to indicate that the user equipment and the WLAN AP transmit data.

And determining, according to the second offloading indication information, that data transmission needs to be performed with the base station via the WLAN AP.

Optionally, the second user equipment side protocol stack 820 includes an adaptation layer, where the adaptation layer is configured to perform at least one protocol layer and the second user equipment side protocol on the first user equipment side protocol stack 810. The conversion processing between the stacks 820, the second user equipment side protocol stack 820 and the at least one protocol layer of the first user equipment side protocol stack 810 are connected through the adaptation layer.

Optionally, the second user equipment side protocol stack 820 includes a mapping layer, where the mapping layer is used to determine a bearer to which the target data belongs, and

When the user equipment corresponds to at least two loads, The sending unit is further configured to: determine, by using the bearer mapping layer, a bearer to which the uplink target data belongs in the target data, and generate second bearer indication information by using the bearer mapping layer, where the second bearer indication information is used to indicate the uplink The bearer to which the target data belongs, and the second bearer indication information is sent to the WLAN AP, so that the base station according to the second bearer indication information forwarded by the WLAN AP or the uplink corresponding to the bearer to which the uplink target data belongs a second GTP tunnel, determining a bearer to which the uplink target data belongs; or

The sending unit is further configured to: obtain, by using the bearer mapping layer, first bearer indication information that is sent by the WLAN AP, where the first bearer indication information is used to indicate a bearer to which the downlink target data in the target data belongs, and according to the first Determining, by the bearer indication information, the bearer to which the downlink target data belongs, where the first bearer indication information is obtained by the WLAN AP from the base station, or the WLAN AP according to the bearer corresponding to the bearer to which the downlink target data belongs Two GTP tunnels are determined.

Optionally, the first user equipment side protocol stack 810 includes a reordering layer, where the reordering layer is used to determine a location of the target data in all data on the bearer, where the first user equipment side protocol stack 810 is at least a protocol layer for the reordering layer, and

The transceiver unit 830 is further configured to determine, by using the reordering layer, a location of the uplink target data in the target data in all uplink data on the bearer, and generate second location indication information by using the reordering layer, where the second location The indication information is used to indicate the location of the uplink target data in all the uplink data on the bearer, and send the second location indication information to the WLAN AP, so that the base station may forward the second location indication information according to the WLAN AP. Determining the location of the uplink target data in all uplink data on the bearer; or

The transceiver unit 830 is further configured to: obtain, by using the reordering layer, first location indication information that is forwarded by the WLAN AP, where the first location indication information is used to indicate all downlink data of the downlink target data in the target data on the bearer. And determining, according to the first location indication information, a location of the downlink target data in all downlink data on the bearer, where the first location indication information is determined by the base station and sent to the WLAN AP.

The apparatus 800 for transmitting data according to an embodiment of the present invention may correspond to a user equipment (target user equipment) in the method of the embodiment of the present invention, and each unit in the apparatus 800 for transmitting data, that is, a module and the other operations described above and/or For the purpose of implementing the corresponding process of the method 500 in FIG. 8, the functions are not described here.

After the AP splits the data of the UE, the UE transmits the UE between the GTP tunnel and the WLAN AP. The data (including the uplink data or the downlink data) enables the offload anchor to be located at the base station, and the base station determines the channel bandwidth used for communication between the user equipment and the WLAN AP, so that the base station can determine the split traffic according to the channel bandwidth, thereby The shunting effect is improved, and since the data split by the WLAN AP arrives at the gateway device via the base station, it can be ensured that the gateway device used when establishing the communication connection through the WLAN is the same as the gateway device used when establishing the communication connection through the base station, thereby ensuring Business continuity, improving the user experience. Hereinafter, an apparatus for transmitting data according to an embodiment of the present invention will be described in detail with reference to FIGS. 12 to 14.

Figure 12 shows a schematic block diagram of an apparatus 900 for transmitting data in accordance with an embodiment of the present invention. Between the device 900 and the gateway device, there is a bearer for transmitting data of the user equipment, and a GTP tunnel is provided between the device and the WLAN AP. As shown in FIG. 12, the device 900 includes:

Bus 910;

a processor 920 connected to the bus 910;

a memory 930 connected to the bus 910;

Transceiver 940 connected to the bus 910

The processor 920, through the bus 910, invokes a program stored in the memory 930 to determine a channel bandwidth used for communication between the user equipment and the WLAN AP;

And controlling the transceiver 940 to perform target data transmission with the user equipment by using the WLAN AP according to the channel bandwidth, where the target data is all or part of data on the bearer.

Optionally, the processor 920 is specifically configured to control the transceiver 940 to receive the first channel bandwidth indication information sent by the user equipment or the WLAN AP, where the first channel bandwidth indication information is used to indicate the user equipment and the Channel bandwidth used for communication between WLAN APs, which is determined by the user equipment in consultation with the WLAN AP;

And determining, according to the first channel bandwidth indication information, a channel bandwidth used by the user equipment to communicate with the WLAN AP.

Optionally, the processor 920 is specifically configured to control, by the transceiver 940, the first capability information that is sent by the user equipment to indicate a channel bandwidth that the user equipment can support, and the WLAN AP sends the WLAN to indicate the WLAN. The second capability information of the channel bandwidth that the AP can support; and configured to determine, according to the first capability information and the second capability information, the user equipment and the The channel bandwidth used for communication between WLAN APs.

Optionally, the processor 920 is specifically configured to control the transceiver 940 to send second channel bandwidth indication information to the user equipment, where the second channel bandwidth indication information is used to indicate communication between the user equipment and the WLAN AP. Channel bandwidth, in order for the user equipment to determine uplink target data according to the second channel bandwidth indication information, where the target uplink data is all or part of uplink data on the bearer;

The uplink target data sent by the WLAN AP is received by the WLAN AP, and the uplink target data is sent by the user equipment to the WLAN AP.

Optionally, the processor 920 is specifically configured to determine downlink target data according to the channel bandwidth, where the target downlink data is all or part of downlink data on the bearer;

The control unit 940 is configured to send the downlink target data to the WLAN AP via the GTP tunnel, so that the WLAN AP forwards the downlink target data to the user equipment.

Optionally, the processor 920 is specifically configured to control the transceiver 940 to receive channel switching information sent by the user equipment or the WLAN AP, where the channel switching information is used to indicate that the user equipment is used for communication with the WLAN AP. Channel switching and the time to complete the handover;

And controlling the transceiver 940 to perform target data transmission with the user equipment by using the WLAN AP according to the channel bandwidth and the channel switching indication information.

Optionally, the processor 920 is specifically configured to control the transceiver 940 to send the first offloading indication information to the WLAN AP, where the first offloading indication information is used to indicate that the WLAN AP transmits data between the base station and the user equipment. The first offload indication information includes identity information of the user equipment, where one identity information is used to uniquely indicate a user equipment in the communication system.

Optionally, the processor 920 is specifically configured to control the transceiver 940 to send the second offloading indication information to the user equipment, where the second offloading indication information is used to indicate that data is transmitted between the user equipment and the WLAN AP.

Optionally, the processor 920 is specifically configured to determine a first GTP tunnel corresponding to the user equipment;

And controlling the transceiver 940 to perform target data transmission with the user equipment by using the WLAN AP according to the channel bandwidth.

Optionally, when the user equipment corresponds to the at least two loads, the processor 920 is specifically configured to determine a second GTP tunnel corresponding to the load to which the target data belongs;

Used to control the transceiver 940 to pass through the second GTP tunnel according to the channel bandwidth. The WLAN AP performs transmission of the target data with the user equipment.

Optionally, the device has a first base station side protocol stack and a second base station side protocol stack, where the first base station side protocol stack is configured to implement data processing for communication with the user equipment at the base station side, where the second base station side The protocol stack is configured to implement data processing for communication with the WLAN AP on the base station side, where the second base station side protocol stack is connected to at least one protocol layer of the first base station side protocol stack, and the processor 920 is specifically used. Controlling the transceiver 940 to perform target data transmission with the user equipment through the WLAN AP through the GTP tunnel through the at least one layer of the first base station side protocol stack and the second base station side protocol stack according to the channel bandwidth. .

Optionally, the second base station side protocol stack includes an adaptation layer, where the adaptation layer is configured to perform data conversion between the at least one protocol layer of the first base station side protocol stack and the second base station side protocol stack. Processing, the second base station side protocol stack is connected to the at least one protocol layer of the first base station side protocol stack by using the adaptation layer, and

The processor 920 is specifically configured to control the transceiver 940 to input downlink target data determined according to the channel bandwidth to at least one protocol layer of the first base station side protocol stack, and the adaptation layer will use the first base station side protocol. The data format of the data output by the at least one protocol layer of the stack is converted into a data format recognizable by the second base station side protocol stack, and transmitted to the second base station side protocol stack, and the data output from the second base station side protocol stack is Sending to the WLAN AP via the GTP tunnel to be sent to the user equipment by using the WLAN AP; or

The processor 920 is specifically configured to control the transceiver 940 to input data acquired from the WLAN AP via the GTP tunnel to the second base station side protocol stack, and the adaptation layer outputs the data from the second base station side protocol stack. The data format of the data is converted into a data format that is identifiable by the at least one protocol layer of the first base station side protocol stack, and is transmitted to at least one protocol layer of the first base station side protocol stack, to obtain uplink target data of the user equipment, The uplink target data is determined by the user equipment according to the channel bandwidth.

When the user equipment corresponds to the at least two bearers, the processor 920 is specifically configured to determine downlink target data according to the channel bandwidth;

And determining, by the bearer mapping layer, a bearer to which the downlink target data belongs, and generating first bearer indication information by using the bearer mapping layer, where the first bearer indication information is used to indicate a bearer to which the downlink target data belongs; The control unit 940 is configured to send the first bearer indication information to the WLAN AP, so that the user equipment determines, according to the first bearer indication information forwarded by the WLAN AP, the bearer to which the downlink target data belongs.

The processor 920 is configured to: obtain, by using the bearer mapping layer, the second bearer indication information that is forwarded by the WLAN AP, where the second bearer indication information is used to indicate an uplink target, where the user equipment is associated with the at least two carriers. The bearer to which the data belongs, the uplink target data is determined according to the channel bandwidth;

The processor 920 is specifically configured to determine downlink target data according to the channel bandwidth, and determine, by using the reordering layer, a location of the downlink target data in all downlink data on the bearer, and generate, by using the reordering layer. a location indication information, where the first location indication information is used to indicate a location of the downlink target data in all downlink data on the bearer;

The device 940 is configured to send the first location indication information to the WLAN AP, so that the user equipment determines, according to the first location indication information forwarded by the WLAN AP, the downlink target data in all downlink data on the bearer. s position.

The processor 920 is configured to: obtain, by using the reordering layer, the second location indication information that is forwarded by the WLAN AP, where the second location indication information is used to indicate a location of the uplink target data in all uplink data on the bearer, where The uplink target data is determined according to the channel bandwidth;

And determining, according to the second location indication information, a location of the uplink target data in all uplink data on the bearer, where the second location indication information is determined by the user equipment and sent to the WLAN AP.

The apparatus 900 for transmitting data according to an embodiment of the present invention may correspond to the method of the embodiment of the present invention. In the base station, and the modules and the other operations and/or functions in the device 900 for transmitting data are respectively implemented in order to implement the corresponding processes of the method 100 in FIG. 4, for the sake of cleaning, no further details are provided herein.

The device for transmitting data according to the embodiment of the present invention can transmit data of the UE (including uplink data or downlink data) between the GTP tunnel and the WLAN AP after the base station determines that the data of the UE needs to be offloaded by the WLAN AP. The shunt anchor point is located at the base station, and the channel bandwidth used by the user equipment to communicate with the WLAN AP is determined by the base station, so that the base station can determine the offload traffic according to the channel bandwidth, thereby improving the offloading effect, and the data split by the WLAN AP When the gateway device is reached via the base station, it is ensured that the gateway device used when establishing the communication connection through the WLAN is the same as the gateway device used when establishing the communication connection through the base station, thereby ensuring service continuity and improving the user experience.

Figure 13 shows a schematic block diagram of an apparatus 1000 for transmitting data in accordance with an embodiment of the present invention. The device 1000 and the base station are provided with a general packet radio service tunneling protocol GTP tunnel, and between the base station and the gateway device, a bearer for transmitting data of the user equipment is provided. As shown in FIG. 13, the device 1000 includes:

Bus 1010;

a processor 1020 connected to the bus 1010;

a memory 1030 connected to the bus 1010;

Transceiver 1040 connected to the bus 1010

The processor 1020, by using the bus 1010, invokes a program stored in the memory 1030, for controlling the transceiver 1040 to transmit target data of the user equipment to the base station via the GTP tunnel, where the target data is According to the channel bandwidth used by the communication between the user equipment and the WLAN AP, the target data is all or part of the data on the bearer.

Optionally, the processor 1020 is specifically configured to control, by the transceiver 1040, the first capability information that is sent by the user equipment to indicate a channel bandwidth that the user equipment can support;

And determining, according to the channel bandwidth that the WLAN AP can support and the first capability information, determining a channel bandwidth used for communication with the user equipment;

The transceiver 1040 is configured to send a first channel bandwidth indication information to the base station, where the first channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP.

Optionally, the processor 1020 is specifically configured to control the transceiver 1040 to send the base station to the base station. a second capability information indicating a channel bandwidth that the WLAN AP can support, so that the base station determines, according to the first capability information and the second capability information, a channel bandwidth used by the user equipment to communicate with the WLAN AP, where The first capability indication information is sent by the user to the base station, and is used to indicate a channel bandwidth that the user equipment can support.

Optionally, the processor 1020 is specifically configured to control the transceiver 1040 to send channel switching information to the base station, where the channel switching information is used to indicate that a channel used by the user equipment to communicate with the WLAN AP is switched, and the The time of the switch.

Optionally, the processor 1020 is specifically configured to control the transceiver 1040 to receive the first offloading indication information sent by the base station, where the first offloading indication information is used to indicate that the WLAN AP transmits data between the base station and the user equipment. The first offload indication information includes identity information of the user equipment, where one identity information is used to uniquely indicate a user equipment in the communication system, and is configured to control the transceiver 1040 to be controlled according to the first offload indication information. The GTP tunnel transmits the target data of the user equipment with the base station.

Optionally, the processor 1020 is specifically configured to determine, according to user information of the user equipment, a first GTP tunnel corresponding to the user equipment;

And controlling the transceiver 1040 to transmit target data of the user equipment to the base station via the first GTP tunnel.

Optionally, when the user equipment corresponds to the at least two carriers, the processor 1020 is specifically configured to control the transceiver 1040 to receive the first bearer indication information sent by the base station, and forward the first bearer to the user equipment. indication information, the first indication information carrier ₇ is used to indicate the downstream target data belongs | carrier; or

The processor 1020 is specifically configured to control the transceiver 1040 to receive the second bearer indication information sent by the user equipment, and forward the second bearer indication information to the base station, where the second bearer indication information is used to indicate that the uplink target data belongs to Hosting.

Optionally, the device has a first WLAN AP side protocol stack and a second WLAN AP side protocol stack, where the first WLAN AP side protocol stack is configured to implement data processing for communication with the base station on the WLAN AP side, where The second WLAN AP side protocol stack is configured to implement data processing for communication with the user equipment on the WLAN AP side, and

The processor 1020 is specifically configured to control the transceiver 1040 to input data acquired from the base station to the first WLAN AP side protocol stack, and transmit data output from the first WLAN AP side protocol stack to the second WLAN AP side. Protocol stack, the number to be output from the second WLAN AP side protocol stack Sent to the user equipment; or

The processor 1020 is specifically configured to control the transceiver 1040 to input data acquired by the user equipment to a second WLAN AP side protocol stack, and transmit data output from the second WLAN AP side protocol stack to the first WLAN AP. The side protocol stack sends data outputted from the first WLAN AP side protocol stack to the base station.

The processor 1020 is specifically configured to control the transceiver 1040 to input data acquired from the base station to a first WLAN AP side protocol stack, and the data format of data output from the first WLAN AP side protocol stack by using the adaptation layer. Converting to a data format that can be identified by the second WLAN AP side protocol stack, and transmitting the data to the second WLAN AP side protocol stack, and transmitting the data output from the second WLAN AP side protocol stack to the user equipment; or

The processor 1020 is specifically configured to control the transceiver 1040 to input data acquired from the user equipment to a second WLAN AP side protocol stack, and data of data output from the second WLAN AP side protocol stack by using the adaptation layer. The format is converted to a data format that can be identified by the first WLAN AP side protocol stack, and transmitted to the first WLAN AP side protocol stack, and data output from the first WLAN AP side protocol stack is sent to the base station.

Optionally, when the user equipment corresponds to the at least two carriers, the processor 1020 is specifically configured to determine, according to the identity information of the user equipment, a second GTP tunnel corresponding to the bearer to which the target data belongs;

And controlling the transceiver 1040 to transmit target data of the user equipment to the base station via the second GTP tunnel.

The device 1000 for transmitting data according to an embodiment of the present invention may correspond to an AP in the method of the embodiment of the present invention, and each unit in the device 1000 for transmitting data and the other operations and/or functions described above are respectively implemented for The corresponding process of the method 400 in the seventh embodiment is not described here.

The device for transmitting data according to the embodiment of the present invention can transmit data of the UE (including uplink data or downlink data) between the GTP tunnel and the WLAN AP after the base station determines that the data of the UE needs to be offloaded by the WLAN AP. The shunt anchor point is located at the base station, and the base station determines the channel bandwidth used for communication between the user equipment and the WLAN AP, and enables the base station root According to the channel bandwidth, the offload traffic is determined, thereby improving the offloading effect, and since the data split by the WLAN AP arrives at the gateway device via the base station, the gateway device used when establishing the communication connection through the WLAN can be ensured when the communication connection is established through the base station. The gateway devices used are the same, thus ensuring business continuity and improving the user experience.

Figure 14 shows a schematic block diagram of an apparatus 1100 for transmitting data in accordance with an embodiment of the present invention. As shown in FIG. 11, the device 1100 includes:

Bus 1110;

a processor 1120 connected to the bus 1110;

a memory 1130 connected to the bus 1110;

Transceiver 1140 connected to the bus 1110

The processor 1120, through the bus 1110, invokes a program stored in the memory 1130, for controlling the transceiver 1140 to perform target data transmission with the base station via the WLAN AP, wherein the target data is according to the The channel bandwidth determined by the communication between the user equipment and the WLAN AP is determined, and the target data is transmitted between the WLAN AP and the base station via the GTP tunnel, and the target data is all or part of data on the bearer.

Optionally, the processor 1120 is specifically configured to control the transceiver 1140 to receive second capability information that is sent by the WLAN AP to indicate a channel bandwidth that the WLAN AP can support;

And determining, according to a channel bandwidth that the user equipment can support and the second capability information, determining a channel bandwidth used for communication with the WLAN AP;

The transceiver 1140 is configured to send first channel bandwidth indication information to the base station, where the first channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP.

Optionally, the processor 1120 is specifically configured to control the transceiver 1140 to send, to the base station, first capability information, which is used to indicate a channel bandwidth that the user equipment can support, so that the base station is configured according to the first capability information and the second The capability information is used to determine a channel bandwidth used by the user equipment to communicate with the WLAN AP, where the second capability indication information is sent by the WLAN AP to the base station, and is used to indicate a channel bandwidth that the WLAN AP can support.

Optionally, the processor 1120 is specifically configured to control the transceiver 1140 to receive the second channel bandwidth indication information sent by the base station, where the second channel bandwidth indication information is used to indicate that the user equipment is used for communication with the WLAN AP. Channel bandwidth

And determining, according to the second channel bandwidth indication information, an uplink target data, where the target The uplink data is all or part of the uplink data on the bearer;

The transceiver 1140 is configured to send the uplink target data to the WLAN AP, so that the WLAN AP sends the uplink target data to the base station via the GTP tunnel.

Optionally, the processor 1120 is specifically configured to control the transceiver 1140 to send channel switching information to the base station, where the channel switching information is used to indicate that a channel used by the user equipment to communicate with the WLAN AP is switched, and the The time of the switch.

Optionally, the processor 1120 is specifically configured to control the transceiver 1140 to receive the second offloading indication information sent by the base station, where the second offloading indication information is used to indicate that the user equipment and the WLAN AP transmit data.

And configured to control, by the second WLAN, the transceiver 1140 to perform target data transmission with the base station via the WLAN AP.

Optionally, the device has a first user equipment side protocol stack and a second user equipment side protocol stack, where the first user equipment side protocol stack is used to implement data processing for communication with the base station on the user equipment side, where The second user equipment side protocol stack is configured to implement data processing for communication with the WLAN AP on the user equipment side, where the second user equipment side protocol stack and at least one protocol layer of the first user equipment side protocol stack Connected, and

Optionally, the processor 1120 is specifically configured to control the transceiver 1140 to perform target data with the base station by using at least one layer of the first user equipment side protocol stack and the second user equipment side protocol stack. Transmission.

Optionally, the processor 1120 is specifically configured to control the transceiver 1140 to input uplink target data to at least one protocol layer of the first user equipment side protocol stack, and the adaptation layer will use the first user equipment side protocol. The data format of the data output by the at least one protocol layer of the stack is converted into a data format recognizable by the second user equipment side protocol stack, and transmitted to the second user equipment side protocol stack, and the second user equipment side protocol stack is to be used. The output data is sent to the WLAN AP to pass the

The WLAN AP sends to the base station, or

The processor 1120 is specifically configured to control the transceiver 1140 to input data acquired from the WLAN AP to the second user equipment side protocol stack, and the adaptation layer will cooperate with the second user equipment. The data format of the data outputted by the stack is converted into a data format recognizable by at least one protocol layer of the first user equipment side protocol stack, and transmitted to at least one protocol layer of the first user equipment side protocol stack to obtain a downlink target. data.

When the user equipment corresponds to the at least two bearers, the processor 1120 is specifically configured to control the transceiver 1140 to determine, by using the bearer mapping layer, the bearer to which the uplink target data belongs in the target data, and pass the bearer mapping. The layer generates the second bearer indication information, where the second bearer indication information is used to indicate the bearer to which the uplink target data belongs, and sends the second bearer indication information to the WLAN AP, so that the base station forwards the packet according to the WLAN AP. a second bearer indication information or an uplink second GTP tunnel corresponding to the bearer to which the uplink target data belongs, determining a bearer to which the uplink target data belongs; or

The processor 1120 is specifically configured to control, by using the bearer mapping layer, the first bearer indication information sent by the WLAN AP, where the first bearer indication information is used to indicate that the downlink target data in the target data belongs to Carrying, and determining, according to the first bearer indication information, a bearer to which the downlink target data belongs, the first bearer indication information is obtained by the WLAN AP from the base station, or the WLAN AP belongs according to the downlink target data The bearer corresponding to the downlink second GTP tunnel is determined.

Optionally, the processor 1120 is specifically configured to determine, by using the reordering layer, a location of uplink target data in the target data in all uplink data on the bearer, and generate second location indication information by using the reordering layer, The second location indication information is used to indicate the location of the uplink target data in all uplink data on the bearer, and send the second location indication information to the WLAN AP, so that the base station forwards according to the WLAN AP. Location indication information, determining a location of the uplink target data in all uplink data on the bearer; or

The processor 1120 is configured to: obtain, by using the reordering layer, the first location indication information that is forwarded by the WLAN AP, where the first location indication information is used to indicate all downlink data of the downlink target data in the target data on the bearer. a location in the middle location, and determining, according to the first location indication information, a location of the downlink target data in all downlink data on the bearer, the first location indication information It is determined by the base station and sent to the WLAN AP.

The device 1100 for transmitting data according to an embodiment of the present invention may correspond to a user equipment (target user equipment) in the method of the embodiment of the present invention, and each unit in the apparatus 1100 that transmits data and the other operations and/ For the purpose of implementing the corresponding process of the method 500 in FIG. 8, the functions are not described here.

Figure 15 is a schematic architectural diagram of a system 1200 for transmitting signals in accordance with an embodiment of the present invention. As shown in Figure 15, the system 1200 includes:

The base station 1210, the base station and the gateway device are provided with a bearer for transmitting data of the user equipment 1230, and the base station and the wireless local area network access point WLAN AP 1220 are provided with a general packet radio service tunneling protocol GTP tunnel for determining The channel bandwidth used by the user equipment 1230 to communicate with the WLAN AP 1220, and the target data is transmitted by the WLAN AP 1220 and the user equipment 1230 via the GTP tunnel according to the channel bandwidth, where the target data is transmitted. Is all or part of the data on the bearer;

The WLAN AP 1220 is configured to transmit target data of the user equipment 1230 with the base station 1210 via the GTP tunnel, where the target data is determined according to a channel bandwidth used by the user equipment 1230 to communicate with the WLAN AP 1220. The target data is all or part of the data on the bearer;

User equipment 1230, configured to perform target data transmission with the base station 1210 via the WLAN AP 1220, where the target data is determined according to a channel bandwidth used by the user equipment 1230 to communicate with the WLAN AP 1220, where The target data is transmitted between the WLAN AP 1220 and the base station 1210 via the GTP tunnel, and the target data is all or part of data on the bearer.

In the system 1200 for transmitting data according to an embodiment of the present invention, the base station 1210 may correspond to the present disclosure. The base station in the method of the embodiment, and the modules and the other operations and/or functions in the base station 1210 are respectively implemented in the WLAN AP 1220 in order to implement the corresponding process of the method 100 in FIG. The modules, and the other operations and/or functions described above, respectively, in order to implement the corresponding processes of the method 400 in FIG. 7, are not described herein. The user equipment 1230 may correspond to the user equipment (target user equipment) in the method of the embodiment of the present invention, and each unit in the base station, that is, the module and the other operations and/or functions described above are respectively implemented to implement the method 500 in FIG. The corresponding process, for the sake of cleanliness, will not be repeated here.

The system for transmitting data according to the embodiment of the present invention can transmit data of the UE (including uplink data or downlink data) between the GTP tunnel and the WLAN AP after the base station determines that the data of the UE needs to be offloaded by the WLAN AP. The shunt anchor point is located at the base station, and the channel bandwidth used by the user equipment to communicate with the WLAN AP is determined by the base station, so that the base station can determine the offload traffic according to the channel bandwidth, thereby improving the offloading effect, and the data split by the WLAN AP When the gateway device is reached via the base station, it is ensured that the gateway device used when establishing the communication connection through the WLAN is the same as the gateway device used when establishing the communication connection through the base station, thereby ensuring service continuity and improving the user experience.

It should be understood that the term "and/or" in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may represent: A exists separately, and A and B exist simultaneously There are three cases of B alone. In addition, the character "/" in this article generally indicates that the context object is an "or" relationship.

It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention. The implementation process constitutes any limitation.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in a combination of electronic hardware or computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

A person skilled in the art can clearly understand that, for the convenience and the cleaning of the description, the specific working processes of the system, the device and the unit described above can refer to the corresponding processes in the foregoing method embodiments, and details are not described herein again. In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

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

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential to the prior art or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

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

Claims

Rights request

A method for transmitting data, characterized in that it is executed by a base station in a communication system, the communication system further comprising a wireless local area network access point WLAN AP and a user equipment, and is provided between the base station and the gateway device. And a general packet radio service tunneling protocol GTP tunnel is set between the base station and the WLAN AP, where the method includes: determining communication between the user equipment and the WLAN AP a channel bandwidth to be used, according to the channel bandwidth, the target data is transmitted by the WLAN AP and the user equipment, where the target data is all or part of data on the bearer. .

The method according to claim 1, wherein the determining a channel bandwidth used for communication between the user equipment and the WLAN AP comprises:

Receiving the first channel bandwidth indication information sent by the user equipment or the WLAN AP, where the first channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP, where The channel bandwidth is determined by the user equipment after negotiating with the WLAN AP;

Determining, according to the first channel bandwidth indication information, a channel bandwidth used by the user equipment to communicate with the WLAN AP.

Determining, according to the first capability information and the second capability information, a channel bandwidth used by the user equipment to communicate with the WLAN AP.

The method according to claim 3, wherein the transmitting, by the WLAN AP, the target data by using the WLAN AP according to the channel bandwidth, includes:

Transmitting, by the user equipment, second channel bandwidth indication information, where the second channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP, so that the user equipment is configured according to the Decoding second channel bandwidth indication information, determining uplink target data, The target uplink data is all or part of the uplink data on the bearer; and the uplink target data sent by the WLAN AP is received by the GTP tunnel, where the uplink target data is sent by the user equipment The WLAN AP.

The method according to any one of claims 1 to 3, wherein, according to the channel bandwidth, the target data is transmitted by the WLAN AP and the user equipment via the GTP tunnel. , including:

Sending, by the GTP tunnel, the downlink target data to the WLAN AP, so that the WLAN AP forwards the downlink target data to the user equipment.

The method according to any one of claims 1 to 5, wherein the method further comprises:

Receiving channel switching information sent by the user equipment or the WLAN AP, where the channel switching information is used to indicate that a channel used for communication between the user equipment and the WLAN AP is switched, and a time for completing the handover is performed; as well as

The transmitting, by the WLAN AP, the target data by using the WLAN AP, according to the channel bandwidth, includes:

And transmitting, according to the channel bandwidth and the channel switching indication information, the target data by using the WLAN AP and the user equipment via the GTP tunnel.

The method according to any one of claims 1 to 6, wherein the target data is performed by the WLAN AP and the user equipment via the GTP tunnel according to the channel bandwidth. Before the transmission, the method further includes:

Sending the first offloading indication information to the WLAN AP, where the first offloading indication information is used to indicate that the WLAN AP transmits data between the base station and the user equipment, where the first offloading indication information includes the Identity information of the user equipment, wherein one identity information is used to uniquely indicate a user equipment in the communication system.

The method according to any one of claims 1 to 7, wherein the target data is performed by the WLAN AP and the user equipment via the GTP tunnel according to the channel bandwidth. Before the transmission, the method further includes:

Sending, by the user equipment, second offloading indication information, where the second offloading indication information is used to indicate that data is transmitted between the user equipment and the WLAN AP. The method according to any one of claims 1 to 8, wherein the transmitting, according to the channel bandwidth, the target data is transmitted by the WLAN AP and the user equipment via the GTP tunnel , including:

Determining a first GTP tunnel corresponding to the user equipment;

And transmitting, according to the channel bandwidth, the target data by using the WLAN AP and the user equipment via the first GTP tunnel.

The method according to any one of claims 1 to 9, wherein, when the user equipment corresponds to at least two bearers, the passing, according to the channel bandwidth, passes through the GTP tunnel The transmitting, by the WLAN AP, the target data by the user equipment, includes: determining a second GTP tunnel corresponding to the bearer to which the target data belongs;

And transmitting, according to the channel bandwidth, the target data by using the WLAN AP and the user equipment via the second GTP tunnel.

The method according to any one of claims 1 to 10, wherein the base station has a first base station side protocol stack and a second base station side protocol stack, and the first base station side protocol stack is used in The base station side implements data processing for communication with the user equipment, and the second base station side protocol stack is configured to implement data processing for communication with the WLAN AP at the base station side, where the second base station side protocol The stack is connected to at least one protocol layer of the first base station side protocol stack, and

Transmitting, by the GTP tunnel, the target data by using the WLAN AP and the user equipment, according to the channel bandwidth, by using at least one layer of the first base station side protocol stack and the second base station side protocol stack .

The method according to claim 11, wherein the second base station side protocol stack includes an adaptation layer, and the adaptation layer is configured to perform data on at least one of the first base station side protocol stacks. And a conversion process between the protocol layer and the second base station side protocol stack, where the second base station side protocol stack is connected to the at least one protocol layer of the first base station side protocol stack by using the adaptation layer, and

Performing target data with the user equipment by using the WLAN AP, by using the GTP tunnel, by using at least one layer of the first base station side protocol stack and the second base station side protocol stack according to the channel bandwidth. Transmission, including:

And input downlink target data determined according to the channel bandwidth to at least one protocol layer of the first base station side protocol stack, and at least one protocol from the first base station side protocol stack by using the adaptation layer The data format of the data output by the layer is converted into a data format that can be identified by the second base station side protocol stack, and transmitted to the second base station side protocol stack, and the data output from the second base station side protocol stack is Sending the GTP tunnel to the WLAN AP for sending to the user equipment by using the WLAN AP; or

Inputting data acquired from the WLAN AP via the GTP tunnel to the second base station side protocol stack, and converting, by using the adaptation layer, a data format of data output from the second base station side protocol stack into a a data format that is identifiable by the at least one protocol layer of the first base station side protocol stack, and is transmitted to at least one protocol layer of the first base station side protocol stack, to obtain uplink target data of the user equipment, and the uplink target Data is determined by the user equipment based on the channel bandwidth.

The method according to claim 11 or 12, wherein the second base station side protocol stack includes a bearer mapping layer, where the bearer mapping layer is used to determine a bearer to which the target data belongs, and

When the user equipment is associated with the at least two bearers, the transmitting, by the WLAN AP, the target data by the WLAN AP according to the channel bandwidth, includes:

Determining downlink target data according to the channel bandwidth;

Determining, by the bearer mapping layer, a bearer to which the downlink target data belongs, and generating first bearer indication information by using the bearer mapping layer, where the first bearer indication information is used to indicate that the downlink target data belongs to Carry

Sending the first bearer indication information to the WLAN AP, so that the user equipment determines, according to the first bearer indication information forwarded by the WLAN AP, the bearer to which the downlink target data belongs.

Acquiring, by the bearer mapping layer, the second bearer indication information that is forwarded by the WLAN AP, where the second bearer indication information is used to indicate a bearer to which the uplink target data belongs, and the uplink target data is determined according to the channel bandwidth. of; And determining, according to the second bearer indication information, a bearer to which the uplink target data belongs, where the second bearer indication information is determined by the user equipment and sent to the WLAN AP.

The method according to any one of claims 11 to 14, wherein the first base station side protocol stack includes a reordering layer, and the reordering layer is configured to determine that the target data is in the bearer a location in all of the data, at least one protocol layer of the first base station side protocol stack is the reordering layer, and

Determining downlink target data according to the channel bandwidth;

Determining, by the reordering layer, a location of the downlink target data in all downlink data on the bearer, and generating first location indication information by using the reordering layer, where the first location indication information is used to indicate The location of the downlink target data in all the downlink data on the bearer; the first location indication information is sent to the WLAN AP, so that the user equipment forwards the first location indication information according to the WLAN AP. And determining a location of the downlink target data in all downlink data on the bearer.

Acquiring, by the reordering layer, the second location indication information that is forwarded by the WLAN AP, where the second location indication information is used to indicate a location of the uplink target data in all uplink data on the bearer, the uplink target Data is determined based on the channel bandwidth;

A method for transmitting data, which is implemented by a wireless local area network access point WLAN AP in a communication system, the communication system further comprising a base station and a user equipment, and is provided between the base station and the gateway device. And a general packet radio service tunneling protocol GTP tunnel is set between the base station and the WLAN AP, where the method includes: Transmitting, by the GTP tunnel, target data of the user equipment with the base station, where the target data is determined according to a channel bandwidth used for communication between the user equipment and the WLAN AP, the target Data is all or part of the data on the bearer.

The method according to claim 17, wherein before the transmitting the target data of the user equipment with the base station by using the GTP tunnel, the method further includes:

The method according to claim 17, wherein before the transmitting the target data of the user equipment with the base station, the method further includes:

Sending, to the base station, second capability information indicating a channel bandwidth that the WLAN AP can support, so that the base station determines the user equipment and the WLAN according to the first capability information and the second capability information. The channel bandwidth used for communication between the APs, where the first capability indication information is sent by the user to the base station, and is used to indicate a channel bandwidth that the user equipment can support.

The method according to any one of claims 17 to 19, wherein the method further comprises:

The method according to any one of claims 17 to 20, wherein the transmitting, by the GTP tunnel, the target data of the user equipment with the base station, includes:

Receiving, by the base station, the first offloading indication information, where the first offloading indication information is used to indicate that the WLAN AP transmits data between the base station and the user equipment, where the first offloading indication information includes the Identity information of the user equipment, wherein one identity information is used to uniquely indicate a user equipment in the communication system

And transmitting, according to the first offloading indication information, target data of the user equipment with the base station via the GTP tunnel. The method according to any one of claims 17 to 21, wherein the transmitting the target data of the user equipment with the base station via the GTP tunnel includes:

Transmitting target data of the user equipment with the base station via the first GTP tunnel.

The method according to any one of claims 17 to 22, wherein when the user equipment corresponds to at least two 7-carriers, the transmitting with the base station via the GTP tunnel The target data of the user equipment, including:

Receiving the first bearer indication information sent by the base station, and forwarding the first bearer indication information to the user equipment, where the first bearer indication information is used to indicate that the downlink target data belongs to the receiving user equipment The second bearer indicates the information, and forwards the second bearer indication information to the base station, where the second bearer indication information is used to indicate the bearer to which the uplink target data belongs.

The method according to any one of claims 17 to 23, characterized in that

The WLAN AP has a first WLAN AP side protocol stack and a second WLAN AP side protocol stack, and the first WLAN AP side protocol stack is configured to implement data processing for communication with the base station on the WLAN AP side, where The second WLAN AP side protocol stack is configured to implement data processing for communication with the user equipment on the WLAN AP side, and

Transmitting, by the GTP tunnel, the target data of the user equipment with the base station, including:

Inputting data acquired from the base station to a first WLAN AP side protocol stack, and transmitting data output from the first WLAN AP side protocol stack to the second WLAN AP side protocol stack, from the second The data output by the WLAN AP side protocol stack is sent to the user equipment; or

Transmitting data acquired from the user equipment to a second WLAN AP side protocol stack, and transmitting data outputted from the second WLAN AP side protocol stack to the first WLAN AP side protocol stack, The data output by a WLAN AP side protocol stack is sent to the base station.

The method according to claim 24, wherein an adaptation layer is disposed between the first WLAN AP side protocol stack and the second WLAN AP side protocol stack, where the adaptation layer is used Performing conversion processing between the first WLAN AP side protocol stack and the second WLAN AP side protocol stack on the data; Transmitting, by the GTP tunnel, target data of the user equipment with the base station, including:

Inputting data acquired from the base station to a first WLAN AP side protocol stack, and converting, by using the adaptation layer, a data format of data output from the first WLAN AP side protocol stack to the second WLAN AP side a data format that can be identified by the protocol stack, and transmitted to the second WLAN AP side protocol stack, and the data output from the second WLAN AP side protocol stack is sent to the user equipment; or

Inputting data acquired from the user equipment to a second WLAN AP side protocol stack, and converting, by using the adaptation layer, a data format of data output from the second WLAN AP side protocol stack to the first WLAN AP The data format that can be identified by the side protocol stack is transmitted to the first WLAN AP side protocol stack, and the data output from the first WLAN AP side protocol stack is sent to the base station.

The method according to any one of claims 17 to 25, wherein when the user equipment corresponds to at least two 7-carriers, the transmitting with the base station via the GTP tunnel The target data of the user equipment, including:

Transmitting target data of the user equipment with the base station via the second GTP tunnel.

27. A method of transmitting data, characterized by being performed by a user equipment in a communication system, the communication system further comprising a base station and a wireless local area network access point WLAN AP, between the base station and the gateway device, And a general packet radio service tunneling protocol GTP tunnel is set between the base station and the WLAN AP, where the method includes: performing target data with the base station via the WLAN AP And the target data is determined according to a channel bandwidth used by the user equipment to communicate with the WLAN AP, where the target data is between the WLAN AP and the base station. The GTP tunnel transmits the target data to all or part of the data on the bearer.

The method according to claim 27, wherein before the transmitting the target data with the base station via the WLAN AP, the method further includes:

Determining and determining according to a channel bandwidth that the user equipment can support and the second capability information Describe the channel bandwidth used for communication between WLAN APs;

Transmitting, by the base station, first capability information, which is used to indicate a channel bandwidth that the user equipment can support, so that the base station determines the user equipment and the WLAN according to the first capability information and the second capability information. The channel bandwidth used by the communication between the APs, where the second capability indication information is sent by the WLAN AP to the base station, and is used to indicate a channel bandwidth that the WLAN AP can support.

The method according to claim 29, wherein the transmitting the target data with the base station via the WLAN AP comprises:

Receiving, by the base station, second channel bandwidth indication information, where the second channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP; according to the second channel bandwidth indication Information, determining uplink target data, where the target uplink data is all or part of uplink data on the bearer;

Transmitting the uplink target data to the WLAN AP, so that the WLAN AP sends the uplink target data to the base station via the GTP tunnel.

The method according to any one of claims 27 to 30, wherein the method further comprises:

The method according to any one of claims 27 to 31, wherein the transmitting, by the WLAN AP, the target data with the base station comprises:

And receiving the second offloading indication information sent by the base station, where the second offloading indication information is used to indicate that data is transmitted between the user equipment and the WLAN AP.

And transmitting, according to the second offloading indication information, the transmission of the target data with the base station via the WLAN AP.

The method according to any one of claims 27 to 32, wherein the user equipment has a first user equipment side protocol stack and a second user equipment side protocol stack, the first user The device side protocol stack is configured to implement data processing for communication with the base station on the user equipment side, where the second user equipment side protocol stack is configured to implement communication with the WLAN AP on the user equipment side. Data processing, wherein the second user equipment side protocol stack is connected to at least one protocol layer of the first user equipment side protocol stack, and

The transmitting the target data with the base station by using the WLAN AP, including: using at least one layer of the first user equipment side protocol stack and the second user equipment side protocol stack, by using the WLAN AP And transmitting the target data with the base station.

The method according to claim 33, wherein the second user equipment side protocol stack includes an adaptation layer, and the adaptation layer is configured to perform data on the first user equipment side protocol stack. a conversion process between the at least one protocol layer and the second user equipment side protocol stack, wherein the second user equipment side protocol stack and the at least one protocol layer of the first user equipment side protocol stack pass the adaptation layer Connected;

Transmitting the target data with the base station by using the WLAN AP by using at least one layer of the first user equipment side protocol stack and the second user equipment side protocol stack, including: inputting uplink target data And at least one protocol layer of the first user equipment side protocol stack, by using the adaptation layer, converting a data format of data output from at least one protocol layer of the first user equipment side protocol stack to the second a data format that can be identified by the user equipment side protocol stack, and transmitted to the second user equipment side protocol stack, and the data output from the second user equipment side protocol stack is sent to the WLAN AP to pass the WLAN. The AP sends to the base station, or

Inputting data acquired from the WLAN AP to the second user equipment side protocol stack, and converting, by using the adaptation layer, a data format of data output from the second user equipment side protocol stack to the first The data format that can be identified by the at least one protocol layer of the user equipment side protocol stack is transmitted to at least one protocol layer of the first user equipment side protocol stack to obtain downlink target data.

The method according to claim 33 or 34, wherein the second user equipment side protocol stack includes a bearer mapping layer, where the bearer mapping layer is used to determine that the target data belongs to, and

When the user equipment is associated with the at least two data carriers, the transmitting, by the WLAN AP, the target data is performed by using the WLAN AP, including:

And determining, by the bearer mapping layer, a bearer to which the uplink target data belongs in the target data, and generating second bearer indication information by using the bearer mapping layer, where the second bearer indication information is used to indicate the uplink target a bearer to which the data belongs, and transmitting the number to the WLAN AP The second bearer indication information, so that the base station determines the uplink target data according to the second bearer indication information that is forwarded by the WLAN AP or the uplink second GTP tunnel corresponding to the bearer to which the uplink target data belongs. The bearing that belongs to; or

Acquiring, by the bearer mapping layer, the first bearer indication information sent by the WLAN AP, where the first bearer indication information is used to indicate a bearer to which the downlink target data in the target data belongs, and according to the first The bearer indication information is used to determine the bearer to which the downlink target data belongs, where the first bearer indication information is obtained by the WLAN AP from the base station, or the WLAN AP belongs to the bearer that belongs to the downlink target data. Corresponding to the downlink second GTP tunnel determined.

The method according to any one of claims 33 to 35, wherein the first user equipment side protocol stack includes a reordering layer, and the reordering layer is configured to determine the target data in the a location in all data carried, at least one protocol layer of the first user equipment side protocol stack is the reordering layer, and

The transmitting, by the WLAN AP, the target data by using the WLAN AP, includes: determining, by using the reordering layer, a location of uplink target data in the target data in all uplink data on the bearer, and passing The reordering layer generates second location indication information, where the second location indication information is used to indicate a location of the uplink target data in all uplink data on the bearer, and send the first to the WLAN AP. Two location indication information, so that the base station determines, according to the second location indication information forwarded by the WLAN AP, a location of the uplink target data in all uplink data on the bearer; or

Acquiring, by the reordering layer, first location indication information that is forwarded by the WLAN AP, where the first location indication information is used to indicate that downlink target data in the target data is in all downlink data on the bearer. a location, and determining, according to the first location indication information, a location of the downlink target data in all downlink data on the bearer, where the first location indication information is determined by the base station and sent to the WLAN AP of.

37. A device for transmitting data, characterized in that: between the device and the gateway device, a bearer for transmitting data of the user equipment is provided, and the device is generally provided between the device and the wireless local area network access point WLAN AP. The packet radio service tunneling protocol GTP tunnel, the device includes:

a first base station side protocol stack, configured to implement data processing for communication with the user equipment; a second base station side protocol stack, configured to implement data processing for communication with the WLAN AP, where the second Base station side protocol stack and at least one protocol layer of the first base station side protocol stack Even

a determining unit, configured to determine a channel bandwidth used by the user equipment to communicate with the WLAN AP;

The transceiver unit is connected to the second base station side protocol stack, and configured to perform target data transmission by using the WLAN AP and the user equipment according to the channel bandwidth determined by the determining unit, by using the GTP tunnel, The target data is all or part of the data on the bearer.

The device according to claim 37, wherein the transceiver unit is further configured to receive first channel bandwidth indication information sent by the user equipment or the WLAN AP, where the first channel bandwidth indication The information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP, where the channel bandwidth is determined by the user equipment after negotiating with the WLAN AP;

The determining unit is specifically configured to determine, according to the first channel bandwidth indication information, a channel bandwidth used by the user equipment to communicate with the WLAN AP.

The device according to claim 37, wherein the transceiver unit is further configured to receive first capability information that is sent by the user equipment to indicate a channel bandwidth that the user equipment can support, and receive the Determining, by the WLAN AP, second capability information indicating a channel bandwidth that the WLAN AP can support;

The determining unit is specifically configured to determine, according to the first capability information and the second capability information, a channel bandwidth used for communication between the user equipment and the WLAN AP.

The device according to claim 39, wherein the transceiver unit is further configured to send second channel bandwidth indication information to the user equipment, where the second channel bandwidth indication information is used to indicate the user equipment. a channel bandwidth used for communication with the WLAN AP, so that the user equipment determines uplink target data according to the second channel bandwidth indication information, where the target uplink data is all or Partial uplink data;

The transceiver unit is configured to receive, by using the GTP tunnel, the uplink target data that is sent by the WLAN AP, where the uplink target data is sent by the user equipment to the WLAN AP.

The device according to any one of claims 37 to 39, wherein the determining unit is further configured to determine downlink target data according to the channel bandwidth, where the target downlink data is the bearer All or part of the downlink data; The transceiver unit is configured to send the downlink target data to the WLAN AP by using the GTP tunnel, so that the WLAN AP forwards the downlink target data to the user equipment.

The device according to any one of claims 37 to 41, wherein the transceiver unit is further configured to receive channel switching information sent by the user equipment or the WLAN AP, where the channel switching information is used. And indicating a time when the channel used for communication between the user equipment and the WLAN AP is switched and the handover is completed;

The transceiver unit is configured to perform, by using the GTP tunnel, the target data transmission by using the WLAN AP and the user equipment according to the channel bandwidth and the channel switching indication information.

The device according to any one of claims 37 to 42, wherein the transceiver unit is further configured to send the first offloading indication information to the WLAN AP, where the first offloading indication information is used to indicate The WLAN AP transmits data between the base station and the user equipment, where the first offload indication information includes identity information of the user equipment, where one identity information is used to uniquely indicate in the communication system. A user device.

The device according to any one of claims 37 to 43, wherein the transceiver unit further sends a second offloading indication information to the user equipment, where the second offloading indication information is used to indicate Transmitting data between the user equipment and the WLAN AP.

The device according to any one of claims 37 to 44, wherein the determining unit further uses a first GTP tunnel corresponding to the user equipment;

The transceiver unit is configured to perform target data transmission with the user equipment by using the WLAN AP, according to the channel bandwidth, by using the first GTP tunnel.

The apparatus according to any one of claims 37 to 45, wherein when the user equipment corresponds to at least two bearers, the determining unit is further configured to determine that the target data belongs to The corresponding second GTP tunnel;

The transceiver unit is configured to perform, by using the second GTP tunnel, the transmission of the target data by using the WLAN AP and the user equipment according to the channel bandwidth.

The apparatus according to any one of claims 37 to 46, wherein the second base station side protocol stack includes an adaptation layer, and the adaptation layer is configured to perform data on the first base station. a conversion process between the at least one protocol layer of the side protocol stack and the second base station side protocol stack, wherein the second base station side protocol stack and the at least one protocol layer of the first base station side protocol stack pass the adaptation Layer phase Even.

The apparatus according to any one of claims 37 to 47, wherein the second base station side protocol stack includes a bearer mapping layer, and the bearer mapping layer is configured to determine a bearer to which the target data belongs. , as well as

When the user equipment corresponds to the at least two bearers, the determining unit is specifically configured to determine downlink target data according to the channel bandwidth, and determine, by using the mapping layer, the downlink target data belongs to Carrying, and generating, by the bearer mapping layer, the first bearer indication information, where the first bearer indication information is used to indicate the bearer to which the downlink target data belongs; facilitating the first forwarding by the user equipment according to the WLAN AP Carrying indication information, determining a bearer to which the downlink target data belongs.

The apparatus according to any one of claims 37 to 48, the second base station side protocol stack includes a bearer mapping layer, and the bearer mapping layer is configured to determine a bearer to which the target data belongs, and

And the determining unit is configured to acquire, by using the bearer mapping layer, second bearer indication information that is forwarded by the WLAN AP, where the second bearer indication information is used, where the user equipment is configured to correspond to the at least two bearers. Indicates a bearer to which the uplink target data belongs, and the uplink target data is determined according to the channel bandwidth;

The apparatus according to any one of claims 37 to 49, wherein the first base station side protocol stack includes a reordering layer, and the reordering layer is configured to determine that the target data is in the bearer a location in all of the data, at least one protocol layer of the first base station side protocol stack is the reordering layer, and

The determining unit is further configured to determine downlink target data according to the channel bandwidth, and determine, by using the reordering layer, a location of the downlink target data in all downlink data on the bearer, and pass the heavy The sorting layer generates the first location indication information, where the first location indication information is used to indicate the location of the downlink target data in all downlink data on the bearer, and facilitates forwarding by the user equipment according to the WLAN AP. A location indication information is used to determine a location of the downlink target data in all downlink data on the bearer. The apparatus according to any one of claims 37 to 50, wherein the first base station side protocol stack includes a reordering layer, and the reordering layer is configured to determine that the target data is in the bearer a location in all of the data, at least one protocol layer of the first base station side protocol stack is the reordering layer, and

The determining unit is further configured to: obtain, by using the reordering layer, second location indication information that is forwarded by the WLAN AP, where the second location indication information is used to indicate all uplink data of the uplink target data on the In the location, the uplink target data is determined according to the channel bandwidth;

And determining, according to the second location indication information, a location of the uplink target data in all uplink data on the bearer, where the second location indication information is determined by the user equipment and sent to the WLAN AP of.

An apparatus for transmitting data, wherein a GTS tunnel of a general packet radio service tunneling protocol is provided between the device and the base station, and data for transmitting the user equipment is provided between the base station and the gateway device. Carrying, the device includes:

a first WLAN AP side protocol stack, configured to implement data processing for communication with the base station; a second WLAN AP side protocol stack, connected to the first WLAN AP side protocol stack, for implementing the user equipment Data processing between communications;

The transceiver unit is connected to the first WLAN AP side protocol stack and the second WLAN AP side protocol stack, and is configured to transmit target data of the user equipment with the base station by using the GTP tunnel, where The target data is determined according to a channel bandwidth used by the user equipment to communicate with the WLAN AP, and the target data is all or part of data on the bearer.

The device according to claim 52, wherein the transceiver unit is further configured to receive first capability information that is sent by the user equipment to indicate a channel bandwidth that the user equipment can support;

The device also includes:

a determining unit, configured to determine, according to a channel bandwidth that the WLAN AP can support and the first capability information, a channel bandwidth used for communication with the user equipment;

The transceiver unit is further configured to send the first channel bandwidth indication information to the base station, where the first channel bandwidth indication information is used to indicate a channel bandwidth used by the user equipment to communicate with the WLAN AP.

54. The apparatus according to claim 52, wherein the transceiver unit is further configured to: Sending, to the base station, second capability information indicating a channel bandwidth that the WLAN AP can support, so that the base station determines the user equipment and the WLAN according to the first capability information and the second capability information. The channel bandwidth used for communication between the APs, where the first capability indication information is sent by the user to the base station, and is used to indicate a channel bandwidth that the user equipment can support.

The device according to any one of claims 52 to 54, wherein the transceiver unit is further configured to send channel switching information to the base station, where the channel switching information is used to indicate the user equipment and The channel used for communication between the WLAN APs is switched and the time for completing the handover.

The device according to any one of claims 52 to 55, wherein the transceiver unit is further configured to receive the first offloading indication information sent by the base station, where the first offloading indication information is used to indicate The WLAN AP transmits data between the base station and the user equipment, where the first offload indication information includes identity information of the user equipment, where one identity information is used to uniquely indicate in the communication system. a user equipment;

And transmitting, by using the GTP tunnel, target data of the user equipment according to the first offload indication information.

The device according to any one of claims 52 to 56, wherein the device further comprises: a determining unit, configured to determine, according to user information of the user equipment, a corresponding to the user equipment a GTP tunnel;

The transceiver unit is specifically configured to transmit target data of the user equipment with the base station via the first GTP tunnel.

The device according to any one of claims 52 to 57, wherein, when the user equipment corresponds to at least two bearers, the transceiver unit is further configured to receive the first sent by the base station Carrying the indication information, and forwarding the first bearer indication information to the user equipment, where the first bearer indication information is used to indicate that the downlink target data belongs to the bearer; or

The transceiver unit is further configured to receive the second bearer indication information that is sent by the user equipment, and forward the second bearer indication information to the base station, where the second bearer indication information is used to indicate that the uplink target data belongs to Hosted.

The apparatus according to any one of claims 52 to 58, wherein an adaptation layer is disposed between the first WLAN AP side protocol stack and the second WLAN AP side protocol stack. The adaptation layer is configured to perform data on the first WLAN AP side protocol stack and the first Conversion processing between the WLAN AP side protocol stacks.

The device according to any one of claims 52 to 59, wherein, when the user equipment corresponds to at least two bearers, the device further comprises:

a determining unit, configured to determine, according to the identity information of the user equipment, a second GTP tunnel corresponding to the bearer to which the target data belongs;

The transceiver unit is specifically configured to transmit target data of the user equipment with the base station via the second GTP tunnel.

61. A device for transmitting data, the device comprising:

a first user equipment side protocol stack, configured to implement data processing for communication with the base station, where a bearer for transmitting data of the user equipment is provided between the base station and the gateway device, where the base station and the wireless A general packet radio service tunneling protocol GTP tunnel is established between the local area network access point WLAN APs;

a second user equipment side protocol stack, configured to implement data processing for communication with the WLAN AP, where the second user equipment side protocol stack is connected to at least one protocol layer of the first user equipment side protocol stack ;

The transceiver unit is connected to the second user equipment side protocol stack, and is configured to perform transmission of target data with the base station by using the WLAN AP, where the target data is according to the user equipment and the WLAN AP. Determined by the channel bandwidth used for the communication, the target data is transmitted between the WLAN AP and the base station via the GTP tunnel, and the target data is all or part of data on the bearer.

The device according to claim 61, wherein the transceiver unit is further configured to receive second capability information that is sent by the WLAN AP to indicate a channel bandwidth that the WLAN AP can support;

The device also includes:

a determining unit, configured to determine, according to a channel bandwidth that the user equipment can support and the second capability information, a channel bandwidth used for communication with the WLAN AP;

The device according to claim 61, wherein the transceiver unit is further configured to send, to the base station, a first capability signal for indicating a channel bandwidth that the user equipment can support. And the base station determines, according to the first capability information and the second capability information, a channel bandwidth used by the user equipment to communicate with the WLAN AP, where the second capability indication information is The WLAN AP sends the channel bandwidth to the base station to indicate that the WLAN AP can support.

The device according to claim 63, wherein the transceiver unit is further configured to receive second channel bandwidth indication information sent by the base station, where the second channel bandwidth indication information is used to indicate the user equipment Channel bandwidth used for communication with the WLAN AP;

The device also includes:

a determining unit, configured to determine uplink target data according to the second channel bandwidth indication information, where the target uplink data is all or part of uplink data on the bearer; and the WLAN AP passes the GTP tunnel The uplink target data is sent to the base station.

The device according to any one of claims 61 to 64, wherein the transceiver unit is further configured to send channel switching information to the base station, where the channel switching information is used to indicate the user equipment and The channel used for communication between the WLAN APs is switched and the time for completing the handover.

The device according to any one of claims 61 to 65, wherein the transceiver unit is further configured to receive second offloading indication information sent by the base station, where the second offloading indication information is used to indicate Transmitting data between the user equipment and the WLAN AP.

The apparatus according to any one of claims 61 to 66, wherein the second user equipment side protocol stack includes an adaptation layer, and the adaptation layer is configured to perform data on the first a conversion process between the at least one protocol layer of the user equipment side protocol stack and the second user equipment side protocol stack, the second user equipment side protocol stack and at least one protocol layer of the first user equipment side protocol stack Connected by the adaptation layer.

The apparatus according to any one of claims 61 to 67, wherein the second user equipment side protocol stack includes a bearer mapping layer, and the bearer mapping layer is used to determine that the target data belongs to Carrying, and

When the user equipment corresponds to at least two loads,

The sending unit is further configured to determine, by using the bearer mapping layer, an uplink in the target data. The bearer to which the target data belongs, and the second bearer indication information is generated by the bearer mapping layer, where the second bearer indication information is used to indicate the bearer to which the uplink target data belongs, and the

The WLAN AP sends the second bearer indication information, so that the base station according to the second bearer indication information forwarded by the WLAN AP or the uplink second GTP tunnel corresponding to the bearer to which the uplink target data belongs, Determining a bearer to which the uplink target data belongs; or

The sending unit is further configured to: obtain, by using the bearer mapping layer, the first bearer indication information that is sent by the WLAN AP, where the first bearer indication information is used to indicate that the downlink target data in the target data belongs to Determining, according to the first bearer indication information, a bearer to which the downlink target data belongs, where the first bearer indication information is obtained by the WLAN AP from the base station, or the WLAN AP according to the The downlink target data belongs to the bearer corresponding to the downlink second GTP tunnel.

The apparatus according to any one of claims 61 to 68, wherein the first user equipment side protocol stack includes a reordering layer, and the reordering layer is configured to determine the target data in the a location in all data carried, at least one protocol layer of the first user equipment side protocol stack is the reordering layer, and

The transceiver unit is further configured to determine, by using the reordering layer, a location of the uplink target data in the target data in all uplink data on the loading, and generate second location indication information by using the reordering layer, The second location indication information is used to indicate a location of the uplink target data in all uplink data on the bearer, and send the second location indication information to the WLAN AP, so that the base station is configured according to the base station. Determining, by the WLAN AP, second location indication information, determining a location of the uplink target data in all uplink data on the bearer; or

The transceiver unit is further configured to: obtain, by using the reordering layer, first location indication information that is forwarded by the WLAN AP, where the first location indication information is used to indicate that downlink target data in the target data is in the bearer a location in all the downlink data, and determining, according to the first location indication information, a location of the downlink target data in all downlink data on the bearer, where the first location indication information is determined by the base station And sent to the WLAN AP.

70. A system for transmitting data, the system comprising:

The device of any one of claims 37 to 51;

The device of any one of claims 52 to 60;

The device of any one of claims 61 to 69.