WO2019080906A1

WO2019080906A1 - Lwaap-based data transmission method, device and storage medium

Info

Publication number: WO2019080906A1
Application number: PCT/CN2018/111951
Authority: WO
Inventors: 钟彩锦
Original assignee: 捷开通讯(深圳)有限公司
Priority date: 2017-10-25
Filing date: 2018-10-25
Publication date: 2019-05-02
Also published as: CN107959555B; CN107959555A

Abstract

A long term evolution-wireless local area network aggregation adaptation protocol (LWAAP)-based data transmission method, which is on the basis of an LWAAP module and uses a WLAN for data transmission, wherein the data are flow data carried by the WLAN. The method comprises: a first equipment sending first service data to a second equipment and storing the first service data in a re-transmission buffer; when it is determined that the first service data need to be re-transmitted, reading the first service data from the re-transmission buffer, and re-sending the read first service data to the second equipment.

Description

LWAAP-based data transmission method, device and storage medium

This application claims the priority of the Chinese Patent Application filed on October 25, 2017, the Chinese Patent Application No. 201711010403.4, entitled "A LWAAP-based Data Transmission Method, Apparatus, and Storage Medium", the entire contents of which are hereby incorporated by reference. The citations are incorporated herein by reference.

Technical field

The present invention relates to the field of wireless communications, and in particular, to a data transmission method, apparatus, and storage medium based on LWAAP.

Background technique

With the development of communication technologies, 3GPP has proposed Long Term Evolution (LET) and Wireless Local Area Network (Wireless Local). Area Network (WLAN) collaboration mechanism, which defines the LET-WLAN Aggregation Adaptation Protocol Module (LWAAP), which implements the aggregation of LTE wireless network data and wireless LAN data transmission, wherein the LET and WLAN modules are both Keep the original architecture and functions unchanged.

In the prior art, in the LET-WLAN aggregation adaptation protocol module, the radio network data carried by the LET is transmitted based on an Evolved Radio Link Control (ERLC) module, and has an automatic retransmission request (Automatic The Repeatre Quest (ARQ) function provides high reliability and high quality of service (QoS) for user data access network transmission. However, the transmission of WLAN-borne WLAN data does not have the ARQ function. When the user data is transmitted to the WLAN, there are problems such as high bit error rate and data vacancy, which affects the transmission reliability of the WLAN data. .

technical problem

The embodiment of the invention provides a data transmission method, device and storage medium based on LWAAP, which can improve the reliability of transmission of wireless local area network data carried by the WLAN.

Technical solution

In a first aspect, an embodiment of the present invention provides a data transmission method based on LWAAP, where the data transmission is performed by using a wireless local area network based on a long term evolution-wireless local area network aggregation adaptation protocol module, where the data is in long term evolution-wireless The offload data carried by the wireless local area network during the local area network aggregation transmission process;

The data transmission method includes:

The first device sends the first service data to the second device, and stores the first service data in the retransmission buffer area;

When it is determined that the first service data needs to be retransmitted, the first service data is read from the retransmission buffer, and the read first service data is resent to the second device.

The data transmission method, wherein the method further includes: determining whether a confirmation message of the second service data by the second device is received within a preset time;

If yes, deleting the first service data in the retransmission buffer; if not, determining that the first service data needs to be retransmitted.

The data transmission method, the method further includes: after performing the sending of the first service data to the second device, starting to time the polling time of the first service data;

Whether the receiving, by the second device, the confirmation message of the first service data by the second device, includes:

Stopping the counting of the polling time when receiving the confirmation message of the second device to the first service data within a preset time;

When the timing of the polling time of the first service data exceeds a preset time, adding a polling identifier to other first service data to be transmitted, or generating control data with the polling identifier, to the Sending, by the second device, the other first service data added with the polling identifier or the control data with the polling identifier;

Receiving, by the second device, based on the polling result of the polling identifier feedback, determining whether the confirmation message for the first service data can be obtained from the polling result.

The data transmission method, wherein the sending the first service data to the second device and storing the first service data in the retransmission buffer area comprises: adding header information to the first service data; The header information includes at least one of a transmission sequence, data type information, and polling information;

The first service data to which the header information is added is sent to the second device and stored in the retransmission buffer.

The data transmission method, wherein the method further includes: storing the second service data to be transmitted in a transmission buffer area, and reading the second service data from the transmission buffer area according to a storage order, Transmitting the read second service data to the receiving device; and/or

Receiving the second service data, and storing the received second service data in the transmission buffer area, and reading the second service data from the transmission buffer area according to a storage order and performing processing.

The data transmission method, wherein the method further includes:

Receiving data sent by the third device;

Determining whether the data is first service data or control data;

If the data is the first service data, the data is processed;

If the data is control data, parsing the control data, generating corresponding feedback control data according to the analysis result, and transmitting the feedback control data to the third device.

In a second aspect, an embodiment of the present invention provides an LWAAP-based data transmission apparatus, where the data transmission apparatus includes a processor, a memory, and a data transceiver, where the processor, the memory, and the data transceiver are connected by a bus;

The memory is configured to store an execution instruction of the processor;

The data transceiver is configured to receive and send data, where the data is offload data carried by the wireless local area network during a long term evolution-wireless local area network aggregation transmission process;

The processor is configured with a Long Term Evolution-Wireless Local Area Network (AP) adaptation protocol module;

The processor is configured to send first service data to the second device, and store the first service data in a retransmission buffer area;

The data transmission device, wherein the processor is further configured to add header information to the first service data; wherein the header information includes at least one of a transmission sequence, data type information, and polling information;

The data transmission device, wherein the processor is further configured to store the second service data to be transmitted in a transmission buffer, and read the second service data from the transmission buffer according to a storage order. Transmitting the read second service data to the receiving device; and/or

In a third aspect, the embodiment of the present invention further provides a storage medium, where the storage medium stores program data, and the program data can be executed by: storing the first service data to be transmitted in a transmission buffer area, and according to The storing sequence reads the first service data from the transmission buffer area;

Transmitting the first service data to the second device, and storing the first service data in a retransmission buffer area;

The storage medium, wherein the program data is further executable to: determine whether a confirmation message of the second service data by the second device is received within a preset time;

The storage medium, wherein the program data is further executable: after performing the sending of the first service data to the second device, starting to time the polling time of the first service data;

The storage medium, wherein the sending the first service data to the second device and storing the first service data in the retransmission buffer area includes: adding header information to the first service data; The header information includes at least one of a transmission sequence, data type information, and polling information;

The storage medium, wherein the program data is further executable:

Receiving data sent by the third device;

Determining whether the data is first service data or control data;

If the data is the first service data, the data is processed;

Beneficial effect

DRAWINGS

1 is a schematic flow chart of a first embodiment of a data transmission method according to the present invention;

2 is a schematic flow chart of a second embodiment of a data transmission method according to the present invention;

3 is a schematic flow chart of a third embodiment of a data transmission method according to the present invention;

4 is a timing diagram of a polling time of a user equipment to wireless local area network data;

FIG. 5 is a schematic flowchart of step S303 in the data transmission method of FIG. 3;

6 is a schematic flow chart of a fourth embodiment of a data transmission method according to the present invention;

7 is a schematic structural diagram of an embodiment of a data transmission device according to the present invention;

FIG. 8 is a schematic structural diagram of another embodiment of a data transmission apparatus according to the present invention; FIG.

9a is a schematic structural diagram of a confirmation transmission module in the data transmission apparatus shown in FIG. 8;

9b is a schematic structural diagram of a transparent transmission module in the data transmission device shown in FIG. 8;

Figure 10 is a block diagram showing an embodiment of a data transmission system of the present invention.

11 is a schematic structural diagram of a user equipment in a data transmission system according to the present invention.

Embodiments of the invention

In order to enable a person skilled in the art to better understand the technical solutions of the present invention, a LWAAP-based data transmission method, apparatus and storage medium provided by the present invention are further described in detail below with reference to the accompanying drawings and specific embodiments.

Please refer to FIG. 1. FIG. 1 is a schematic flowchart diagram of a first embodiment of a data transmission method based on LWAAP according to the present invention. As shown in FIG. 1, the data transmission method may include the following steps:

S101. The first device sends the first service data to the second device, and stores the first service data in the retransmission buffer.

In an actual data transmission system, a user equipment (User Equipment, UE) and an Evolvoed Node (eNB) are generally included. The evolved node is a base station, and data is transmitted between the user equipment and the base station. The user equipment and the base station are mutually the sender and receiver of the data. In this embodiment, the first device is used as the user equipment, and the second device is used as the base station for example. Further, the first service data refers to wireless local area network data carried by the WLAN when the data is transmitted based on the LWAAP aggregation adaptation protocol module.

In this embodiment, the user equipment sends the wireless local area network data carried by the WLAN to the base station during the LWAAP aggregation transmission process. In order to enable the automatic local area network data sent by the user equipment to implement the automatic repeat request function, the wireless local area network data sent to the base station is stored in the retransmission buffer area, so that the user needs to retransmit the transmitted wireless local area network data to the base station subsequently, the user The device can read the corresponding WLAN data from the retransmission buffer.

Further, in the embodiment, when the user equipment sends the wireless local area network data to the base station, the header information may be added to the wireless local area network data. The wireless local area network data sent to the base station is data with the header information added, and the wireless local area network data stored in the retransmission buffer area is also the data with the header information added. The header information includes at least one of a sending sequence, data type information, and polling information. Adding header information to the WLAN data can identify the WLAN data accordingly for easy identification.

For example, if the user equipment sequentially transmits k wireless local area network data to the base station, the transmission sequences 1, 2, 3, . . . (k-1), k may be added to the k wireless local area network data one by one.

Further, when the user equipment sends the wireless local area network data to the base station, the plurality of wireless local area network data to be sent may be sequentially stored in the transmission buffer area, and the wireless local area network data is read from the transmission buffer area according to the storage order, and the wireless data to be read is read. The LAN data is sent to the base station.

S102. When determining that the first service data needs to be retransmitted, read the first service data from the retransmission buffer area, and resend the read first service data to the second device.

After the automatic repeat request function is performed, after receiving the wireless local area network data sent by the user equipment, the base station sends a confirmation message to the user equipment for the received wireless local area network data. Therefore, the user equipment can determine whether the WLAN data needs to be retransmitted by receiving an acknowledgment message of the transmitted one of the WLAN data.

If the user equipment does not receive the acknowledgment message of the transmitted one of the WLAN data, it is determined that the WLAN data needs to be retransmitted. At this time, the user equipment reads the corresponding wireless local area network data from the retransmission buffer area, and transmits the read wireless local area network data to the base station again.

In this embodiment, when the user equipment and the base station transmit the wireless local area network data based on the LWAAP aggregation adaptation protocol module, the automatic retransmission request function is added to enable the user equipment to send the wireless local area network data when transmitting the wireless local area network data to the base station. The LAN data is stored in the retransmission buffer. When it is determined that the wireless local area network data needs to be retransmitted, the wireless local area network data is read from the retransmission buffer area, and the read wireless local area network data is retransmitted to the base station. Through the above method, the transmission of the offloaded data carried by the WLAN can be provided with an automatic retransmission request function, thereby improving the transmission reliability of the wireless local area data.

Further, please refer to FIG. 2. FIG. 2 is a schematic flowchart diagram of a second embodiment of a data transmission method according to the present invention. As shown in FIG. 2, the data transmission method of this embodiment is further improved based on the first embodiment of the method shown in FIG. 1. The embodiment may include the following steps:

S103. Determine whether a confirmation message of the second service device to the first service data is received within a preset time.

In this embodiment, since the transmission of the wireless local area network data of the user equipment and the base station has an automatic retransmission request function, when receiving the wireless local area network data sent by the user equipment, the base station sends a confirmation to the user equipment for the wireless local area network data. Message. The confirmation message is used to enable the user equipment to determine that the base station has received the first service data. In other words, if the user equipment receives the acknowledgment message for the WLAN data sent by the eNB, the user equipment may determine that the eNB has received the first service data, that is, the WLAN data does not need to be retransmitted, and then proceeds to step S104. If the user equipment does not send the acknowledgement message for the first service data sent by the base station, step S105 is performed.

Further, the user equipment does not always wait for the acknowledgment message sent by the base station to the WLAN data. Therefore, the preset time is set, and the user equipment determines whether the acknowledgment message of the WLAN data is received by the base station within a preset time.

In this embodiment, the acknowledgment message for the WLAN data sent by the base station may be an acknowledgment message for transmitting the WLAN data to the user equipment every time a WLAN data is received. It is also possible to set a transmission period in which several WLAN data transmitted by the user equipment are received. When the period ends, the base station transmits an acknowledgment message of all WLAN data received in the period to the user equipment.

It can be understood that the acknowledgement message for the wireless local area network data sent by the base station received by the user equipment includes the transmission sequence of the wireless local area network data, the polling information, and the like, which can be used to identify the identification information of the wireless local area network.

In this embodiment, the preset time is not specifically limited. In addition, if the base station periodically sends an acknowledgement message to the first service data, the duration of the cycle is not specifically limited. The duration of the preset time is greater than the duration of the period, so that the user equipment can determine whether the first service data needs to be retransmitted within a preset time.

S104. Delete the first service data in the retransmission buffer area.

In step S103, the user equipment receives the acknowledgement message for the wireless local area network data sent by the base station, indicating that the base station has received the wireless local area network data, and the wireless local area network data does not need to be retransmitted, and the user terminal may store the data in the retransmission buffer. The corresponding WLAN data in the zone is deleted to save storage resources.

S105. Confirm that the first service data needs to be retransmitted.

If the user equipment does not receive the acknowledgment message for the WLAN data sent by the base station in step S103, the base station does not receive the WLAN data, and the user equipment confirms that the WLAN data needs to be retransmitted, and then further performs step S102.

Further, referring to FIG. 3, FIG. 3 is a schematic flowchart of a third embodiment of a data transmission method according to the present invention. As shown in FIG. 3, the data transmission method of this embodiment includes at least the following steps:

S301. The first device sends the first service data to the second device, and stores the first service data in the retransmission buffer.

Specifically, step S301 of the embodiment is the same as step S101 in the first embodiment of the method shown in FIG. 1, and details are not described herein again.

S302. Start counting the polling time of the first service data.

Each time the user equipment sends a wireless local area network data to the base station, the polling timer of the wireless local area network data is turned on, and the polling time is counted for the wireless local area network data. The polling time is timed for the WLAN data to cause the user equipment to determine when to receive the acknowledgment message of the corresponding WLAN data sent by the base station.

When the polling time of a certain WLAN data is ended, if the acknowledgment message for the WLAN data is still not received, the polling identifier corresponding to the WLAN data is sent to the base station, so that the base station according to the polling The identifier queries to see if the WLAN data has been received.

S303. Determine whether an acknowledgement message of the second device to the first service data is received within a preset time.

In step S302, after the user equipment counts the transmitted WLAN data for the polling time, it starts to wait for the acknowledgment message sent by the receiving base station to the WLAN data. It is worth noting that the user equipment does not always wait for the acknowledgment message sent by the base station to the WLAN data. Therefore, the preset time is set, and the user equipment determines whether the acknowledgment message of the WLAN data is received by the base station within a preset time. . That is, the timing of the polling time of the transmitted wireless local area network data is related to the preset time. When the time of the polling time exceeds the preset time duration, whether the user equipment receives the confirmation message sent by the base station to the wireless local area network data, The timing of the polling time will end.

Referring to FIG. 4, FIG. 4 illustrates the timing of the user equipment turning on the polling time of the wireless local area network data, and the relationship between the base station transmitting the acknowledgment message to the WLAN data to the user equipment, and periodically sending the base station to the user equipment. The acknowledgment message of all the WLAN data received in the period is specifically described as an example.

The user equipment transmits the wireless local area network data data1, data2, data3, ..., dataX to the base station one by one, and respectively counts the polling time of each data, and the base station starts the counting of the sending period when receiving the data data1, assuming the sending period of the base station Ending at point M, the data sent by the user equipment to the base station in the period is data1 to dataN. Correspondingly, the base station sends an acknowledgement message to the user equipment for data1 to dataN at the end of the transmission period. It can be understood that, during the period, if the base station does not receive any one of the data data1 to dataN, the data is deleted in the confirmation message.

Therefore, it can be understood that the preset time of the user equipment is longer than the duration of the sending period of the sending confirmation message of the base station. The specific time length of the preset time and the sending period is not specifically limited in this embodiment.

Specifically, referring to FIG. 5, step S303 may include the following steps:

S3031: When receiving the confirmation message of the second service data to the first service data within the preset time, stop counting the polling time.

Each time the user equipment sends a wireless local area network data, the time for starting the polling time of the wireless local area network data, and waiting for the confirmation information sent by the base station to the corresponding wireless local area network data, when receiving the corresponding wireless local area network data sent by the base station When the information is confirmed, it indicates that the base station has received the wireless local area network data, and then the timing of the polling time can be stopped, and it is determined that the wireless local area network data corresponding to the confirmation message does not need to be retransmitted, and the process proceeds to step S304.

In this embodiment, the acknowledgment message sent by the base station to the WLAN data may be an acknowledgment message that sends the WLAN data to the user equipment every time a WLAN data is received, or may set a sending period to receive the user equipment in the period. A plurality of WLAN data transmitted, when the period ends, the base station transmits an acknowledgment message of all WLAN data received in the period to the user equipment.

S3032: When the timing of the polling time of the first service data exceeds a preset time, adding a polling identifier to other first service data to be transmitted, or generating control data with a polling identifier, and sending the control data to the second device Add other first service data of the polling ID or control data with a polling identifier.

When the time of the polling time of the WLAN data exceeds the preset time by the user equipment, the user equipment does not receive the acknowledgment message for the WLAN data sent by the base station within the preset time. At this time, it may be that the WLAN data is lost during transmission, and the base station does not receive the WLAN data. Accordingly, the base station does not send an acknowledgment message to the user equipment for the WLAN data; or the base station receives The WLAN data is reached, but the acknowledgment message for the WLAN data is not sent to the user equipment. Therefore, the user equipment cannot accurately determine whether the base station receives the WLAN data and whether the WLAN data needs to be retransmitted according to the fact that the acknowledgment message for the WLAN data sent by the base station is not received.

At this time, the user equipment further detects whether there is any other wireless local area network data to be transmitted to the base station, and if there is other wireless local area network data to be transmitted, a polling identifier is added to other wireless local area network data to be transmitted. If there is currently no other wireless LAN data to be transmitted, control data with a polling identifier is generated. In this embodiment, the added polling identifier is used to enable the base station to confirm, according to the polling identifier, whether the wireless local area network data corresponding to the polling identifier has been received before.

Further, the other wireless local area network data or control data to be transmitted added with the polling identifier is sent to the base station, and the polling result of the polling identifier is waited for the base station, and the process proceeds to step S3033.

S3033. The receiving second device determines, according to the polling result of the polling identifier feedback, whether the confirmation message for the first service data can be obtained from the polling result.

After receiving the polling identifier of the wireless local area network data, the base station checks the received data to obtain a polling result for the wireless local area network data. If the base station checks that the wireless local area network data is received, the base station polls the result. At least an acknowledgment message for the WLAN data is included; otherwise, the acknowledgment message for the WLAN data is not included in the polling result. After receiving the polling result, the base station feeds back the polling result back to the user equipment.

Receiving, by the user equipment, the polling result fed back by the base station, parsing the polling result, and determining whether the WLAN data confirmation message can be obtained from the polling result, and if the WLAN data can be obtained The confirmation message indicates that the base station receives the wireless local area network data, and the wireless local area network data does not need to be retransmitted. Here, step S304 is continued; otherwise, step S305 is performed.

S304. Delete the first service data in the retransmission buffer area.

When the user equipment receives the acknowledgment message for the WLAN data, the base station receives the WLAN data, and the WLAN data does not need to be retransmitted, so in order to save the storage resources of the user terminal, the corresponding information stored in the retransmission buffer area is stored. Wireless LAN data deletion.

S305. Confirm that the first service data needs to be retransmitted.

If the user equipment does not receive the acknowledgment message for the WLAN data, the base station does not receive the WLAN data, and the user equipment confirms that the WLAN data needs to be retransmitted, and then further performs step S306.

S306. Read the first service data from the retransmission buffer, and send the read first service data to the second device again.

During the automatic retransmission request function, the user equipment can receive the feedback message to the WLAN data sent by the base station, and the user equipment can determine that the WLAN data needs to be retransmitted through the feedback message; at this time, the user equipment retransmits The corresponding wireless local area network data is read in the buffer area, and the read wireless local area network data is sent to the base station again.

It can be understood that the user equipment and the base station are mutually senders and receivers of data. In the first to third embodiments of the method shown in FIG. 1 to FIG. 3, the user equipment is used as the sender and the base station is the receiver. However, in actual applications, the user equipment can also serve as the receiver. The base station is the sender, and the transmission of the wireless local area network data based on the LWAAP aggregation adaptation protocol module between the two can still be implemented by the first to third embodiments of the foregoing method.

Since the user equipment can also be the receiver of the data, the present invention correspondingly proposes a data transmission method embodiment of the wireless local area network data based on the LWAAP aggregation adaptation protocol module between the user equipment and the base station when the user equipment can serve as the receiver.

Further, referring to FIG. 6, FIG. 6 is a schematic flowchart of a fourth embodiment of a data transmission method according to the present invention. As shown in FIG. 6, the data transmission method of this embodiment may include the following steps:

S501. Receive data sent by a third device.

The user equipment is the receiver of the wireless local area network data, and receives the wireless local area network data sent by the third device. The third device in this embodiment is the base station. For the content executed by the base station, refer to the method shown in FIG. 1 to FIG. The content executed by the user terminal in an embodiment and a third embodiment is not described herein again.

According to the descriptions of the first embodiment and the third embodiment of the method shown in FIG. 1 to FIG. 5, it can be understood that the data received by the user equipment at this time may be wireless local area network data, or may be control data added with a polling identifier or Added wireless LAN data for the polling ID.

S502. Determine whether the data is the first service data or the control data.

After receiving the data sent by the base station, the user equipment parses the data, and determines, according to the parsing result, whether the received data includes a polling identifier for the previously received WLAN data. Step S503 or step S504 is selected and executed according to the judgment result.

S503. If the data is the first service data, the data is processed.

In this embodiment, when the user equipment determines that the received data is only wireless local area network data, and considers that the data is wireless local area network data, the wireless local area network data is received and processed.

S504. If the data is control data, parse the control data, generate corresponding feedback control data according to the analysis result, and send feedback control data to the third device.

In this embodiment, when the user equipment determines that the received data is control data including a polling identifier or wireless local area network data including a polling identifier, the data is considered as control data, and the polling identifier is parsed from the data. And performing the execution content after the base station receives the polling identifier in step S3033, obtaining the polling result, generating corresponding feedback control data according to the polling result, and transmitting the generated feedback control data to the corresponding base station.

The first to fourth embodiments of the method shown in FIG. 1 to FIG. 6 are all for wireless local area network data transmission by WLAN, and the present invention is an improvement of data transmission based on the LWAAP aggregation adaptation protocol module. The invention also enables the transmission of wireless network data carried by the LET.

Further, the data transmission method of this embodiment also supports transmission of wireless network data carried by the LET based on the LWAAP module.

When the user equipment in the first to fourth embodiments of the method shown in FIG. 1 to FIG. 6 is used as the transmitting end of the wireless network data, the data transmission method may include the following execution content:

The second service data to be transmitted is stored in the transmission buffer, and the second service data is read from the transmission buffer in the storage order, and the read second service data is sent to the receiving device, where the second service data is For wireless network data.

In this embodiment, the transmission of wireless network data is transparent. The user equipment as the data transmitting end stores the wireless network data to be transmitted in the transmission buffer area, and then reads the wireless network data in the storage order from the transmission buffer area, and transmits the data to the base station one by one.

When the user equipment in the first to fourth embodiments of the method shown in FIG. 1 to FIG. 6 is used as the receiving end of the wireless network data, the data transmission method may include the following execution content:

Receiving the second service data, and storing the received second service data in the transmission buffer area, and reading the second service data from the transmission buffer area and processing according to the storage order, wherein the second service data is a wireless network data.

In this embodiment, since the transmission of the wireless network data is transparent, the wireless network data sent by the sender one by one is sequentially received and stored in the receiving process, and the received wireless network data is processed one by one. .

Further, referring to FIG. 7, FIG. 7 is a schematic structural diagram of an embodiment of a data transmission apparatus based on LWAAP according to the present invention. As shown in FIG. 7, the data transmission apparatus of this embodiment includes a processor 601, a memory 602, and a data transceiver 603. The processor 601, the memory 602, and the data transceiver 603 are connected by a bus.

The memory 602 is used to store execution instructions of the processor 601 and cache data. The data transceiver 603 is configured to receive and send data, and the data includes at least the offloaded data carried by the wireless local area network during the long term evolution-wireless local area network (LTE) aggregation transmission. It can be understood that the data may also be the wireless network data carried by the LET.

The processor 601 is configured with a long-term evolution-wireless local area network aggregation adaptation protocol module (LWAAP module), configured to send first service data to the second device, and store the first service data in the memory 602; When the service data needs to be retransmitted, the first service data is read from the memory 602, and the read first service data is retransmitted to the second device. Further, the processor 601 is further configured to add header information to the first service data, where the header information includes at least one of a sending sequence, data type information, and polling information, and send the first service data that adds the header information to the first The two devices are stored in the memory 602. Further, the processor 601 is further configured to store the second service data to be transmitted in the memory 602, and read the second service data from the memory 602 according to the storage order, and send the read second service data to the second device; And/or receiving the second service data, and storing the received second service data in the memory 602, and reading the second service data from the memory 602 in the storage order and processing. It can be understood that the number of the processor 601 and the memory 602 in the above data transmission device may be plural.

In this embodiment, the data transmission device may be a user equipment or a base station, and the content specifically executed by the data transmission device and the content of the first to fourth embodiments of the data transmission method shown in FIG. 1 to FIG. For the details, refer to the foregoing description of the first to fourth embodiments of the data transmission method, and details are not described herein again.

Further, referring to FIG. 8, FIG. 8 is a schematic structural diagram of another embodiment of the LWAAP-based data transmission apparatus according to the present invention. As shown in FIG. 8, the data transmission apparatus of this embodiment is based on an LWAAP module, and further, the LWAAP module of the data transmission apparatus includes at least one set of acknowledgment transmission module 701 (Acknowledged Mode, AM) and transparent transmission module 702 (Transparent Mode, TM), wherein the acknowledgment transmission module 701 is used for transmitting wireless local area network data carried by the WLAN, and the transparent transmission module 702 is configured to transmit wireless network data carried by the LET.

The interface between the transmission module 701 and the transparent transmission module 702 and the evolved packet data convergence protocol module 703 in the LTE system is an upper layer service interface, and the interface of the media access module 704 in the WLAN system is a lower layer service interface.

When the data transmission device is the transmitting end of the data, if the data is wireless local area network data, the confirmation transmission module 701 receives the wireless local area network data from the evolved packet data convergence protocol module 703 through the upper layer service interface, and the received wireless local area network data is processed by the LWAAP module. The processed wireless local area network data is sent to the media access module 704 through the lower layer service interface. When the data transmission device is used as the receiving end of the wireless local area network data, the wireless local area network data is received from the media access module 704 through the lower layer service interface, and the received wireless local area network data is processed by the LWAAP module, and the wireless local area network data is transmitted through the upper layer service interface. To the evolved packet data convergence protocol module 703. If the data is wireless network data, the transparent transmission module 702 receives the wireless network data from the evolved packet data convergence protocol module 703 through the upper layer service interface, and the received wireless network data is processed by the LWAAP module, and the processed wireless network data passes through the lower layer service interface. Send to media access module 704. When the data transmission device is the receiving end of the wireless network data, the wireless network data is received from the media access module 704 through the lower layer service interface, and the received wireless network data is processed by the LWAAP module, and the processed wireless device is processed through the upper layer service interface. The network data is sent to the Evolved Packet Data Convergence Protocol Module 703.

Further, referring to FIG. 9a, FIG. 9a is a schematic structural diagram of the acknowledgment transmission module in FIG. 8. The acknowledgment transmission module of this embodiment includes a transmission buffer sub-module 7011, a retransmission buffer sub-module 7012, a header information sub-module 7013, and a control sub-module. 7014. The routing sub-module 7015 and the de-heading information sub-module 7016.

When the data transmission device is used as the transmitting end of the wireless local area network data, the transmission path of the wireless local area network data is as shown by the solid line with an arrow in FIG. 9a, and the direction of the arrow is the transmission direction of the wireless local area network data in the confirmation transmission module. . The wireless local area network data is transmitted to the transmission buffer sub-module 7011 through the upper service interface, and is transmitted to the header information sub-module 7013 one by one according to the stored order. The data after the header information is sent on the one hand through the lower layer service interface, and on the other hand to the In the retransmission buffer sub-module 7012, the control sub-module 7014 is configured to generate control information for the data transmission device to determine that the wireless local area network data stored in the retransmission buffer sub-module 7012 is read and re-executed. The transfer operation is performed; or the wireless local area network data stored in the retransmission buffer sub-module 7012 is deleted.

When the data transmission device is used as the data receiving end, the transmission path of the wireless local area network data is as shown by the dotted line with an arrow in FIG. 9a, and the direction of the arrow is the transmission direction of the wireless local area network data. The WLAN data is transmitted to the routing sub-module 7015 through the lower layer service interface, and the routing sub-module 7015 parses the data, determines whether the WLAN data contains control data, and transmits the parsed control data to the control sub-module 7014, and the WLAN data. Transfer to the de-header information sub-module 7016. The control sub-module 7014 further generates a control data packet according to the received control data, and the control data packet includes an acknowledgement message for the received wireless local area network data, and the control data packet is further sent back to the corresponding data transmitting end. The head information sub-module 7016 deletes the header information added in the WLAN data, and transmits the WLAN data with the header information deleted to the Evolved Packet Data Convergence Protocol module through the upper layer service interface.

Further, referring to FIG. 9b, FIG. 9b is a schematic structural diagram of the transparent transmission module of FIG. 8. The transparent transmission module of this embodiment includes at least one set of the receiving transparent module 7021 and the sending transparent module 7022, wherein the transmitting transparent module 7022 includes a transmission buffer. Module. When the data transmission device is used as the transmitting end of the wireless network data, the wireless network data is transmitted to the transmission buffer sub-module through the upper layer service interface, and the lower layer service interface is transmitted one by one according to the storage order. When the data transmission device is used as the wireless network data receiving end, the wireless network data is directly received from the lower layer service interface, and the wireless network data is transmitted through the upper layer service interface.

It can be understood that the data transmission apparatus of this embodiment may be a user equipment or a base station, and the specific data transmission method thereof is the same as the first embodiment to the fourth embodiment of the data transmission method shown in FIG. 1 to FIG. , will not repeat them here.

Referring to FIG. 10, FIG. 10 is a schematic structural diagram of an embodiment of a data transmission system according to the present invention. The data transmission system includes a user equipment and a base station.

The user equipment and the base station may be a data transmitting end and a data receiving end, and the user equipment and the base station each include at least one transparent transmission module 1002 and the confirmation transmission module 1001. The user equipment and the base station are both data transmission devices shown in FIG. 8. The acknowledgment transmission module 1001 and the transparent transmission module 1002 in the data transmission device are the same as the acknowledgment transmission module and the transparent transmission module shown in FIG. 9a and FIG. 9b, respectively. , will not repeat them here. It should be noted that in FIG. 10, in order to make the drawing succinct, the receiving transparent module and the transmitting transparent module are combined into the transparent transmission module 1002, but the substantial data transmission mode is the data transmission mode in FIG. 9b.

Further, the present invention also discloses a storage medium embodiment. The storage medium in this embodiment stores program data, and the program data can be executed to implement the first embodiment to the data transmission method shown in FIG. 1 to FIG. Four embodiments are not described herein again.

Certainly, those skilled in the art can understand that all or part of the processes in the foregoing embodiments can be implemented by a computer program to instruct related hardware (such as a processor, a controller, etc.), and the program can be stored in one. In a computer readable storage medium, the program, when executed, may include the processes of the various method embodiments as described above. The storage medium described therein may be a memory, a magnetic disk, an optical disk, or the like.

FIG. 11 is a block diagram showing a specific structure of a user equipment in a data transmission system according to an embodiment of the present invention. The user equipment can be used to implement the data transmission apparatus and method provided in the above embodiments. The user device 1200 can be a smartphone or a tablet.

As shown in FIG. 11, the user equipment 1200 may include an RF (Radio Frequency) circuit 110, a memory 120 including one or more (only one shown) computer-readable storage medium, an input unit 130, and a display unit. 140, sensor 150, audio circuit 160, transmission module 170, including processor 180 having one or more processing cores (only one shown) and power supply 190 and the like. It will be understood by those skilled in the art that the user equipment 1200 structure shown in FIG. 4 does not constitute a limitation to the user equipment 1200, and may include more or less components than those illustrated, or combine some components, or different components. Arrangement. among them:

The RF circuit 110 is configured to receive and transmit electromagnetic waves, and realize mutual conversion between electromagnetic waves and electrical signals, thereby communicating with a communication network or other devices. The RF circuit 110 may include various existing circuit elements for performing these functions, such as an antenna, a radio frequency transceiver, a digital signal processor, an encryption/decryption chip, a Subscriber Identity Module (SIM) card, a memory, and the like.

The input unit 130 can be configured to receive input numeric or character information and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls.

Display unit 140 can be used to display information entered by the user or information provided to the user as well as various graphical user interfaces of user device 1200, which can be composed of graphics, text, icons, video, and any combination thereof. The display unit 140 may include a display panel 141, and optionally, an LCD (Liquid may be used) The display panel 141 is configured in the form of a Crystal Display (LCD) or an OLED (Organic Light-Emitting Diode).

User device 1200 may also include at least one type of sensor 150, such as a light sensor, motion sensor, and other sensors. The audio circuit 160, the speaker 161, and the microphone 162 can provide an audio interface between the user and the user device 1200. The audio circuit 160 can transmit the converted electrical data of the received audio data to the speaker 161 for conversion to the sound signal output by the speaker 161; on the other hand, the microphone 162 converts the collected sound signal into an electrical signal by the audio circuit 160. After receiving, it is converted into audio data, and then processed by the audio data output processor 180, transmitted to the terminal, for example, via the RF circuit 110, or outputted to the memory 120 for further processing. The audio circuit 160 may also include an earbud jack to provide communication of the peripheral earphones with the user device 1200.

The user equipment 1200 can help the user to send and receive emails, browse web pages, access streaming media, etc. through the transmission module 170 (eg, Wi-Fi module), which provides wireless broadband Internet access to the user.

The processor 180 is a control center of the user device 1200 that connects various portions of the entire user device using various interfaces and lines, by running or executing software programs and/or modules stored in the memory 120, and recalling stored in the memory 120. The data, performing various functions and processing data of the user equipment 1200, thereby performing overall monitoring of the mobile phone. Optionally, the processor 180 may include one or more processing cores; in some embodiments, the processor 180 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and For applications, etc., the modem processor primarily handles wireless communications. It can be understood that the above modem processor may not be integrated into the processor 180.

User equipment 1200 also includes a power supply 190 (such as a battery) that powers the various components. In some embodiments, the power supply can be logically coupled to processor 180 through a power management system to manage charging, discharging, and power consumption through the power management system. Management and other functions. Power supply 190 may also include any one or more of a DC or AC power source, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.

Although not shown, the user equipment 1200 may further include a camera (such as a front camera, a rear camera), a Bluetooth module, and the like, and details are not described herein.

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformation made by the specification and the drawings of the present invention may be directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Claims

An LWAAP-based data transmission method, wherein the method is data transmission using a wireless local area network based on a long-term evolution-wireless local area network aggregation adaptation protocol module, where the data is in a long-term evolution-wireless local area network aggregation transmission process Split data carried by the wireless local area network;

The data transmission method includes:

The first device sends the first service data to the second device, and stores the first service data in the retransmission buffer area;

When it is determined that the first service data needs to be retransmitted, the first service data is read from the retransmission buffer, and the read first service data is resent to the second device.
The data transmission method according to claim 1, wherein the method further comprises:

Determining whether a confirmation message of the second service data to the first service data is received in a preset time;

If yes, deleting the first service data in the retransmission buffer; if not, determining that the first service data needs to be retransmitted.
The data transmission method according to claim 2, wherein the method further comprises:

After performing the sending of the first service data to the second device, starting to time the polling time of the first service data;

Whether the receiving, by the second device, the confirmation message of the first service data by the second device, includes:

Stopping the counting of the polling time when receiving the confirmation message of the second device to the first service data within a preset time;

When the timing of the polling time of the first service data exceeds a preset time, adding a polling identifier to other first service data to be transmitted, or generating control data with the polling identifier, to the Sending, by the second device, the other first service data added with the polling identifier or the control data with the polling identifier;

Receiving, by the second device, based on the polling result of the polling identifier feedback, determining whether the confirmation message for the first service data can be obtained from the polling result.
The data transmission method according to claim 1, wherein the transmitting the first service data to the second device and storing the first service data in the retransmission buffer area comprises:

Adding header information to the first service data; wherein the header information includes at least one of a transmission sequence, data type information, and polling information;

The first service data to which the header information is added is sent to the second device and stored in the retransmission buffer.
The data transmission method according to claim 1, wherein the method further comprises:

Storing the second service data to be transmitted in the transmission buffer, and reading the second service data from the transmission buffer according to the storage sequence, and sending the read second service data to the receiving device ;and / or

Receiving the second service data, and storing the received second service data in the transmission buffer area, and reading the second service data from the transmission buffer area according to a storage order and performing processing.
The data transmission method according to claim 1, wherein the method further comprises:

Receiving data sent by the third device;

Determining whether the data is first service data or control data;

If the data is the first service data, the data is processed;

If the data is control data, parsing the control data, generating corresponding feedback control data according to the analysis result, and transmitting the feedback control data to the third device.
An LWAAP-based data transmission device, wherein the data transmission device comprises a processor, a memory and a data transceiver, the processor, the memory and the data transceiver are connected by a bus;

The memory is configured to store an execution instruction of the processor;

The data transceiver is configured to receive and send data, where the data is offload data carried by the wireless local area network during a long term evolution-wireless local area network aggregation transmission process;

The processor is configured with a Long Term Evolution-Wireless Local Area Network (AP) adaptation protocol module;

The processor is configured to send first service data to the second device, and store the first service data in a retransmission buffer area;

When it is determined that the first service data needs to be retransmitted, the first service data is read from the retransmission buffer, and the read first service data is resent to the second device.
The data transmission device according to claim 7, wherein said processor is further configured to add header information to said first service data; wherein said header information comprises a transmission sequence, data type information, and polling information At least one

The first service data to which the header information is added is sent to the second device and stored in the retransmission buffer.
The data transmission device according to claim 7, wherein the processor is further configured to store the second service data to be transmitted in a transmission buffer, and read the read from the transmission buffer in a storage order. Second service data, the read second service data is sent to the receiving device; and/or

Receiving the second service data, and storing the received second service data in the transmission buffer area, and reading the second service data from the transmission buffer area according to a storage order and performing processing.
A storage medium in which program data is stored, the program data being capable of being subjected to the following steps:

And storing the first service data to be transmitted in the transmission buffer, and reading the first service data from the transmission buffer according to the storage order;

Transmitting the first service data to the second device, and storing the first service data in a retransmission buffer area;

When it is determined that the first service data needs to be retransmitted, the first service data is read from the retransmission buffer, and the read first service data is resent to the second device.
The storage medium of claim 10, wherein the program data is further executable:

Determining whether a confirmation message of the second service data to the first service data is received in a preset time;

If yes, deleting the first service data in the retransmission buffer; if not, determining that the first service data needs to be retransmitted.
The storage medium of claim 11, wherein the program data is further executable:

After performing the sending of the first service data to the second device, starting to time the polling time of the first service data;

Whether the receiving, by the second device, the confirmation message of the first service data by the second device, includes:

Stopping the counting of the polling time when receiving the confirmation message of the second device to the first service data within a preset time;

When the timing of the polling time of the first service data exceeds a preset time, adding a polling identifier to other first service data to be transmitted, or generating control data with the polling identifier, to the Sending, by the second device, the other first service data added with the polling identifier or the control data with the polling identifier;

Receiving, by the second device, based on the polling result of the polling identifier feedback, determining whether the confirmation message for the first service data can be obtained from the polling result.
The storage medium of claim 10, wherein the transmitting the first service data to the second device and storing the first service data in the retransmission buffer comprises:

Adding header information to the first service data; wherein the header information includes at least one of a transmission sequence, data type information, and polling information;

The first service data to which the header information is added is sent to the second device and stored in the retransmission buffer.
The storage medium of claim 10, wherein the program data is further executable:

Receiving data sent by the third device;

Determining whether the data is first service data or control data;

If the data is the first service data, the data is processed;

If the data is control data, parsing the control data, generating corresponding feedback control data according to the analysis result, and transmitting the feedback control data to the third device.