WO2015168842A1 - 可见光通信vlc相关设备及方法 - Google Patents

可见光通信vlc相关设备及方法 Download PDF

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Publication number
WO2015168842A1
WO2015168842A1 PCT/CN2014/076790 CN2014076790W WO2015168842A1 WO 2015168842 A1 WO2015168842 A1 WO 2015168842A1 CN 2014076790 W CN2014076790 W CN 2014076790W WO 2015168842 A1 WO2015168842 A1 WO 2015168842A1
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WO
WIPO (PCT)
Prior art keywords
wireless communication
response information
data packet
terminal
visible light
Prior art date
Application number
PCT/CN2014/076790
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English (en)
French (fr)
Inventor
戎璐
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2014/076790 priority Critical patent/WO2015168842A1/zh
Priority to CN201480077983.7A priority patent/CN106464364B/zh
Publication of WO2015168842A1 publication Critical patent/WO2015168842A1/zh
Priority to US15/343,287 priority patent/US20170054500A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/114—Indoor or close-range type systems
    • H04B10/116—Visible light communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a VLC related device and method for visible light communication. Background technique
  • Visible Light Communication is a communication method that uses visible light for communication and data transmission, and can achieve data transmission rates of up to 1 Gbps. Visible optical communication technology can make full use of lighting to provide high-speed data transmission while lighting.
  • practical visible light communication is mainly based on white light communication, for example, a light emitting diode (LED) emits white light. It is expected that by 2021, LED will occupy more than 50% of the global commercial lighting market. Therefore, visible light communication will move from the laboratory to commercial products and enter a period of rapid development, which has a very broad market prospect.
  • LED light emitting diode
  • IEEE 802.15.7 is a set of visible light communication standards that defines the standard interface between the physical layer, the MAC layer, and the LLC layer of visible light communication.
  • the 802.15.7 protocol supports visible light bidirectional communication, and feedback information is transmitted through the reverse visible light link.
  • visible light can be used to transmit downlink (DownLink, DL) data to users.
  • DownLink Downlink
  • DL downlink
  • UE User Equipment
  • Embodiments of the present invention provide a visible light communication VLC related device and method, which are used to implement When the terminal can only receive visible light data, it can feed back data to the VLC device to realize bidirectional data transmission.
  • the present invention provides a terminal, including:
  • a visible light communication VLC receiving module configured to receive a data packet transmitted through a visible light link, where the data packet carries a data packet identifier
  • a LLC entity module configured to generate response information according to the data packet received by the VLC receiving module, where the response information carries a data packet identifier of the successfully received data packet;
  • a wireless communication module configured to send a wireless communication signal carrying the response information generated by the LLC entity module.
  • the wireless communications module is specifically configured to: send a wireless high-fidelity WiFi signal or a Bluetooth BT signal or an infrared IR signal that carries the response information generated by the LLC entity module;
  • a cellular wireless communication signal carrying response information generated by the LLC entity module is transmitted.
  • the present invention provides a visible light communication VLC device, including:
  • a communication module configured to receive a communication signal carrying the response information, where the response information carries a data packet identifier of the data packet that is successfully received by the terminal and transmitted through the visible light link;
  • a LLC entity module configured to acquire, according to the response information received by the communication module, a data packet identifier of the data packet successfully received by the terminal;
  • a VLC transmitting module configured to transmit a data packet to the terminal by using a visible light link, where the data packet that is transmitted does not include a data packet corresponding to the data packet identifier acquired by the LLC entity module.
  • the communications module is specifically configured to: receive a wireless high-fidelity WiFi signal or a Bluetooth BT signal or an infrared IR signal that carries the response information;
  • the communications module is specifically configured to: Receiving, by the wireless communication device, a response notification message that carries the response information, where the response information carries a data packet identifier of a data packet that is successfully received by the terminal and transmitted through a visible light link, where the response notification message is The wireless communication device generates and transmits a wireless communication signal that receives the bearer response information sent by the terminal.
  • the communication module and the wireless communication device are in an Ethernet communication link or a power line communication link or a wireless communication link. Connect in any way.
  • the present invention provides a wireless communication device, including:
  • a receiver configured to receive a wireless communication signal of the bearer response information sent by the terminal, where the response information carries a data packet identifier of the data packet successfully transmitted by the terminal and transmitted through the visible light link, and acquires the response information.
  • a LLC entity module configured to acquire the data packet identifier carried in the response information acquired by the receiver, and generate a response notification message that carries the acquired identifier of the data packet;
  • a transmitter configured to send the response notification message generated by the LLC entity module to the visible optical communication device.
  • the receiver is specifically configured to: receive a wireless high-fidelity WiFi signal or a Bluetooth BT signal or an infrared IR signal that carries the bearer response information sent by the terminal;
  • the wireless communications device includes:
  • the present invention provides a visible light communication method, including: Receiving a data packet transmitted by the visible light communication device through the visible light link, where the data packet carries a data packet identifier;
  • a wireless communication signal carrying the response information is transmitted.
  • the transmitting the wireless communication signal carrying the response information includes:
  • a cellular wireless communication signal carrying the response information is transmitted.
  • the sending the wireless communication signal carrying the response information includes:
  • the present invention provides a visible light communication method, including:
  • the receiving, by the wireless communication signal carrying the response information returned by the terminal includes:
  • the method further includes:
  • the data packet sent does not include the obtained data packet corresponding to the data packet identifier.
  • the present invention provides a visible light communication method, including:
  • the obtaining, by the wireless communications device, the response information from the wireless communication signal that is sent by the terminal includes:
  • the wireless communication device obtains the response information from a received wireless high-fidelity WiFi signal or a Bluetooth BT signal or an infrared IR signal sent by the terminal;
  • the wireless communication device obtains the response information from a received cellular wireless communication signal transmitted by the terminal.
  • the response information is obtained by the wireless communication device after being obtained from the received wireless communication signal sent by the terminal, and includes:
  • the wireless communication device forwards the response information via any of an Ethernet communication link or a power line communication link or a wireless communication link.
  • the terminal feeds back the uplink data to the visible light communication device by using the wireless communication signal, so that the terminal can feed back the data to the VLC device only when the terminal can only receive the visible light data. , to achieve two-way data transmission.
  • 1 is a schematic structural diagram of a terminal according to an embodiment of the present invention
  • 2 is a schematic structural diagram of a VLC device according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a wireless communication device according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a method for performing visible light communication on a terminal according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of a method for performing visible light communication on a VLC device according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of visible light communication performed by another VLC device according to an embodiment of the present invention.
  • FIG. 8 is a schematic flowchart of a method for implementing visible light bidirectional communication according to an embodiment of the present invention.
  • FIG. 8 is a schematic flowchart of another method for implementing visible light bidirectional communication according to an embodiment of the present invention. detailed description
  • the core idea of the present invention is: after receiving the data packet transmitted by the visible light communication device through the visible light link, the terminal feeds back the receiving situation to the visible light communication device through the wireless communication function provided by the terminal other than the visible light communication, thereby realizing the bidirectional data transmission. .
  • a terminal In the first embodiment of the present invention, as shown in FIG. 1, a terminal is provided.
  • the terminal mainly includes: a visible light communication VLC receiving module 101, configured to receive a data packet transmitted through a visible light link, where the data packet carries The packet is identified and passed to Logical Link Control (Logical Link Control,
  • the LLC entity module 102 is configured to generate response information according to the data packet delivered by the VLC receiving module 101, and transmit the response information to the wireless communication module 103, where the response information carries the data packet identifier of the successfully received data packet;
  • the wireless communication module 103 is configured to send a wireless communication signal carrying the response information transmitted by the LLC entity module 102.
  • the wireless communication module 103 transmits a wireless high-fidelity (WiFi) signal or a Bluetooth (BT) signal or an infrared (IR) signal carrying the response information generated by the LLC entity module 102;
  • WiFi wireless high-fidelity
  • BT Bluetooth
  • IR infrared
  • a cellular wireless communication signal carrying response information generated by the LLC entity module is transmitted.
  • the wireless communication module of the terminal is WiFi
  • the wireless communication module carries the response information by using the WiFi signal
  • the wireless communication module of the terminal is the BT
  • the wireless communication module carries the response information by using the BT signal
  • the wireless communication module carries the response information through the IR signal.
  • the wireless communication module of the terminal when the wireless communication module of the terminal has cellular wireless communication capability, the wireless communication module carries the response information through the cellular wireless communication signal.
  • a visible light communication VLC device is provided, and the VLC device mainly includes:
  • the communication module 201 is configured to receive a communication signal carrying the response information, where the response information carries the data packet identifier of the data packet successfully transmitted by the terminal and transmitted through the visible light link, and the response information is transmitted to the LLC entity module 202;
  • the LLC entity module 202 is configured to: according to the response information transmitted by the communication module 201, obtain a data packet identifier of the data packet successfully received by the terminal, and transmit the obtained data packet identifier to the VLC transmitting module 203;
  • the VLC transmitting module 203 is configured to transmit a data packet to the terminal by using a visible light link, where the transmitted data packet does not include a data packet corresponding to the data packet identifier transmitted by the LLC entity module 202.
  • the communication module 201 receives a WiFi signal or a BT signal or an IR signal carrying the response information;
  • the communication module 201 receives a cellular wireless communication signal carrying the response information.
  • the communication module 201 receives a response notification message of the bearer response information sent by the wireless communication device, where the response information carries the data packet identifier of the data packet that is successfully received by the terminal and transmitted through the visible light link.
  • the response notification message is received by the wireless communication device
  • the wireless communication signal transmitted by the terminal carrying the response information is generated and transmitted.
  • communication module 201 is coupled to the wireless communication device via either an Ethernet communication link or a power line communication link or a wireless communication link.
  • a wireless communication device is further provided, and the wireless communication device mainly includes:
  • the receiver 301 is configured to receive a wireless communication signal that carries the bearer response information sent by the terminal, where the response information carries a data packet identifier of the data packet that is successfully received by the terminal and transmitted through the visible light link.
  • the LLC entity module 302 is configured to obtain a data packet identifier carried in the response information acquired by the receiver 301, and generate a response notification message that carries the acquired data packet identifier.
  • the transmitter 303 is configured to send a response notification message generated by the LLC entity module 302 to the VLC device.
  • the receiver 301 receives a WiFi signal or a BT signal or an IR signal carrying the response information; or
  • a cellular wireless communication signal carrying the response information is received.
  • the communication link in which the transmitter of the wireless communication device transmits the response notification message to the VLC device may be any one of communication links such as Ethernet, power line, and wireless communication.
  • the received wireless communication signal is a WiFi signal
  • the wireless communication module of the wireless communication device is BT
  • the received wireless communication signal is a BT signal
  • the wireless communication device wirelessly communicates
  • the module is IR
  • the received wireless communication signal is an IR signal.
  • the receiver 301 of the wireless communication communication device has cellular wireless communication capabilities, and the received wireless communication signals may be cellular wireless communication signals.
  • the wireless communication device having cellular wireless communication capability may be a small cell, a femto cell or a high frequency base station.
  • the receiver and the transmitter in the wireless communication device can be implemented separately by using separate hardware, or can be integrated into one transceiver, no matter what kind of implementation is formed, as long as it can be implemented. All of the above functions are now within the scope of the present invention.
  • the detailed method of implementing visible light communication by using the terminal side as an execution subject may be as follows:
  • Step 401 Receive a data packet transmitted by the visible light communication device through a visible light link, where the data packet carries a data packet identifier.
  • the VLC receiving module of the terminal receives the data packet transmitted by the VLC device through the visible light link, where the data packet carries the data packet identifier, and the received data packet is transmitted to the LLC entity module of the terminal.
  • Step 402 Generate response information according to the successfully received data packet, where the response information carries a data packet identifier of the successfully received data packet.
  • the LLC entity module of the terminal generates response (ACK) information according to the data packet transmitted by the VLC receiving module of the terminal, and transmits the response information to the wireless communication module of the terminal, where the response information carries the data packet successfully received by the terminal. Packet identification.
  • Step 403 Send a wireless communication signal carrying the response information.
  • the wireless communication module of the terminal transmits a wireless communication signal carrying the response information transmitted by the LLC entity module of the terminal.
  • the wireless communication signal is a WiFi signal or a BT signal or an IR signal; or the wireless communication signal is a cellular wireless communication signal.
  • the wireless communication signal type may be selected according to an agreement between the terminal and the VLC device. If the terminal and the VLC device support WiFi, the wireless communication signal can adopt the WiFi signal; if the terminal and the VLC device both support BT, the wireless communication signal can adopt the BT signal; if the terminal and the VLC device both support the IR, the wireless communication signal can adopt the IR signal. If both the terminal and the VLC device support cellular wireless communication, the wireless communication signal may employ a cellular wireless communication signal.
  • the wireless communication device and the type of the corresponding wireless communication signal may be selected according to the capabilities of the terminal. For example, if the terminal has cellular wireless communication capabilities, the access point can be communicated via cellular wireless communication. The device acts as a relay, and sends response information to the VLC device.
  • the access point device of the cellular wireless communication may be a small base station, a home base station, or a high frequency base station.
  • the terminal can directly send the wireless communication signal to the VLC device, that is, the terminal transmits the wireless communication signal carrying the response information to the visible light communication device.
  • the wireless communication signal sent by the terminal is transferred by the wireless communication device and sent to the VLC device, as follows:
  • the terminal transmits a wireless communication signal carrying the response information to the wireless communication device, and the wireless communication device forwards the response information to the VLC device.
  • the communication link between the wireless communication device and the VLC device may be any one of communication links such as Ethernet, power line, wireless communication, and the like.
  • the VLC device can be used as a main body, and the VLC device has a wireless communication capability, that is, a VLC device corresponding to the second embodiment, and the VLC device is implemented.
  • the detailed method flow of visible light communication is as follows:
  • Step 501 Send a data packet to the terminal through the visible light link.
  • the VLC transmitting module of the VCL device transmits a data packet to the terminal through the visible light link, where the data packet carries the data packet identifier.
  • Step 502 Receive a wireless communication signal carrying a response information returned by the terminal, where the response information carries a data packet identifier of the data packet successfully received by the terminal.
  • the line communication module of the VLC device receives the wireless communication signal returned by the terminal, where the wireless communication signal carries the response information returned by the terminal, and the response information carries the data packet identifier of the data packet successfully received by the terminal.
  • the wireless communication module of the VLC device transmits the response information to the LLC entity module of the VLC device; the LLC entity module of the VLC device acquires the data packet identifier of the data packet successfully received by the terminal according to the response information, and transmits the acquired data packet identifier to the
  • the VLC transmitting module of the VLC device transmits the data packet to the terminal through the visible light link, and the transmitted data packet does not include the data packet corresponding to the data packet identifier transmitted by the LLC entity module of the VLC device.
  • the wireless communication signal is a WiFi signal or a BT signal or an IR signal.
  • the VLC device obtains the data packet identifier carried in the response information, and when the data packet is sent to the terminal, the data packet sent does not include the data packet corresponding to the acquired data packet identifier.
  • the VLC device can be used as the execution host, and the VLC device does not have the wireless communication capability, and the VLC device implements the detailed method of visible light communication.
  • Step 601 Send a data packet to the terminal through the visible light link.
  • the VLC transmitting module of the VCL device transmits a data packet to the terminal through the visible light link, where the data packet carries the data packet identifier.
  • Step 602 The LLC entity receives the response information of the terminal, where the response information carries the data packet identifier of the data packet successfully received by the terminal, and the response information is obtained by the wireless communication device after being obtained from the wireless communication signal sent by the terminal.
  • the LLC entity module of the VLC device receives the response notification message sent by the wireless communication device, and obtains the data packet identifier of the data packet successfully received by the terminal carried in the response notification message, and transmits the obtained data packet identifier to the VLC device.
  • VLC transmitter module receives the response notification message sent by the wireless communication device, and obtains the data packet identifier of the data packet successfully received by the terminal carried in the response notification message, and transmits the obtained data packet identifier to the VLC device.
  • the communication link between the VLC device and the wireless communication device is implemented by any one of communication links such as Ethernet, power line, wireless communication, and the like.
  • the VLC transmitting module of the VLC device transmits the data packet to the terminal through the visible light link, and the transmitted data packet does not include the data packet corresponding to the data packet identifier transmitted by the LLC entity module of the VLC device.
  • the wireless communication device obtains response information from the received WiFi signal transmitted by the terminal or the Bluetooth BT signal or the infrared IR signal;
  • the wireless communication device acquires response information from the received cellular wireless communication signal transmitted by the terminal.
  • the wireless communication device and the type of the corresponding wireless communication signal are selected according to the capabilities of the terminal.
  • the access point can be communicated via cellular wireless communication.
  • the device acts as a relay, and sends response information to the VLC device.
  • the access point device of the cellular wireless communication may be a small base station, a home base station, or a high frequency base station.
  • the device having the WiFi function can be used as a relay to transmit the response information to the VLC device.
  • a VLC device is taken as an example of a VLC lamp.
  • the wireless communication device is a short-range wireless communication device having short-range wireless communication capability
  • the wireless communication signal is a short-range wireless communication signal (such as WFi) as an example.
  • the VLC lamp and the short-range wireless communication function are integrated in one access point device.
  • the access point device has a VLC transmission module (including a MAC layer, a physical layer, and a light-emitting device).
  • VLC transmission module including a MAC layer, a physical layer, and a light-emitting device.
  • short-range wireless communication modules such as WiFi modules or BT modules or IR modules.
  • short-range wireless communication is implemented by using WiFi as an example.
  • the method for performing short-range wireless communication by using BT or IR is similar to that of the method, and is not described here.
  • the number of the LLC packet is used as the packet identifier.
  • the LLC entity module of the access point device converts the DL data into a numbered LLC packet, which is transmitted to the VLC transmitting module and sent to the user equipment through the VLC lamp.
  • the VLC receiving module of the user equipment After receiving the DL data, the VLC receiving module of the user equipment submits the LLC data packet carried in the successfully received DL data to the LLC entity module. After receiving the LLC packet, the UE entity module sends a LLC layer ACK message to the access point device through its WiFi module, which includes the number information of the LLC packet successfully received by the UE through the VLC receiving module.
  • the WiFi module of the access point device After receiving the uplink (UL) data containing the LLC layer ACK message, the WiFi module of the access point device submits the ACK message to the LLC entity module.
  • the LLC entity module of the access point device learns which DL data is successfully received by the user according to the LLC packet number contained in the ACK message, and accordingly determines whether each DL data packet needs to be retransmitted. For data that needs to be retransmitted, the same LLC packet number as the initial transmission is still used, and the access point device is sent to the user equipment through the VLC transmitting module. For new data, a new LLC packet number is used and sent to the user equipment through the VLC transmitter module.
  • the VLC lamp and the short-range wireless communication function belong to two different devices.
  • the VLC lamp has VLC data transmission capability
  • the short-range wireless communication access point with short-range wireless communication function can be a WiFi access point (AP) or a BT device or an IR device, VLC light and short-range wireless.
  • Communication access points can communicate via Ethernet, power lines, and wireless.
  • the short-range wireless communication function is implemented by using WiFi as an example, and the short-distance wireless communication method using BT or IR is similar, and details are not described herein again.
  • the number of the LLC packet is used as the packet identifier.
  • the LLC entity module of the VLC lamp converts the DL data into a numbered LLC data packet, and the VLC transmitting module transmits the downlink (DL) data carrying the LLC data packet through the VLC transmission link.
  • DL downlink
  • the VLC receiving module of the user equipment After receiving the DL data, the VLC receiving module of the user equipment delivers the LLC data packet carried in the successfully received DL data to the LLC entity module of the user equipment. After receiving the LLC data packet, the LLC entity of the UE sends a LLC layer ACK message to the WiFi AP through its WiFi module, which contains the number information of the LLC data packet successfully received by the UE through the VLC receiving module.
  • the WiFi AP After receiving the uplink (UL) data including the LLC layer ACK message, the WiFi AP sends an ACK notification message to the VLC lamp, where the ACK notification message includes the LLC packet number included in the LLC layer ACK message.
  • the VLC lamp Based on the LLC packet number contained in the ACK notification message, the VLC lamp knows which DL data was successfully received by the user, and accordingly determines whether each DL packet needs to be retransmitted. For the need to retransmit the data, the same LLC packet number as the initial transmission is still used and sent to the user equipment through the VLC transmitting module. For new data, a new LLC packet number is used and sent to the user equipment through the VLC transmitter module.
  • the terminal feeds back uplink data to the visible light communication device through the wireless communication signal, thereby realizing that only the terminal can be connected in the terminal.
  • the data can be fed back to the VLC device to realize the two-way data transmission, thereby utilizing the visible light spectrum resource, improving the communication rate of the access point, and better meeting the data service requirements of the user.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本发明公开了一种可将光通信VLC相关设备及方法，用以实现在终端仅能够接收可见光数据的情况下，能够向VLC设备反馈数据，实现双向数据传输。该方法中，终端通过无线通信信号向可见光通信设备反馈上行数据，以实现可见光通信场景下的双向数据传输。

Description

可见光通信 VLC相关设备及方法
技术领域
本发明涉及通信技术领域， 尤其涉及一种可见光通信 VLC相关设备及方 法。 背景技术
所谓可见光通信（ Visible Light Communication, VLC ) , 是利用可见光进 行通信、 数据传输的通信方式， 可以实现高达 lGbps的数据传输速率。 可见 光通信技术， 可以充分地利用灯光， 在照明的同时， 提供高速率的数据传输。 目前实用化的可见光通信，主要是基于白光进行通信，例如，发光二极管（ Light Emitting Diode, LED )发出白光。 预计到 2021年， LED将占据 50%以上的 全球商用照明市场。 因此， 可见光通信将从实验室走向商用产品， 进入快速 发展期， 具有十分广阔的市场前景。
国内外在可视光通信这一领域还处在研究和试制阶段， 尚没有能够实现 超高速可见光通信技术及相关终端产品。
IEEE 802.15.7是一套可见光通信标准，定义了可见光通信的物理层、 MAC 层、 LLC层之间的标准接口。 802.15.7协议支持可见光双向通信， 反馈信息通 过反向的可见光链路传输。
在实际场景下， 可见光可以用来向用户传输下行链路（DownLink, DL ) 数据， 由于可见光传输具有发送功耗大、 传输效率低等问题， 在用户的手机 等终端设备（ User Equipment, UE )上， 不适合采用可见光发送数据， 使得终 端只能够接收可见光数据， 无法向 VLC设备反馈数据， 双向通信难以实现， 限制了可见光通信的应用。 发明内容
本发明实施例提供了一种可见光通信 VLC相关设备及方法， 用以实现在 终端仅能够接收可见光数据的情况下， 能够向 VLC设备反馈数据， 实现双向 数据传输。
第一方面， 本发明提供了一种终端， 包括：
可见光通信 VLC接收模块， 用于接收通过可见光链路传输的数据包， 所 述数据包中携带有数据包标识；
LLC实体模块，用于根据所述 VLC接收模块接收的所述数据包生成响应 信息， 所述响应信息中携带有成功接收的数据包的数据包标识；
无线通信模块， 用于发送承载有所述 LLC实体模块生成的所述响应信息 的无线通信信号。
结合第一方面， 在一种可能的实现方式中， 所述无线通信模块具体用于： 发送承载有所述 LLC实体模块生成的响应信息的无线高保真 WiFi信号或 者蓝牙 BT信号或者红外 IR信号；
或者，
发送承载有所述 LLC实体模块生成的响应信息的蜂窝无线通信信号。 第二方面， 本发明提供了一种可见光通信 VLC设备， 包括：
通信模块， 用于接收承载响应信息的通信信号， 所述响应信息中携带有 终端成功接收的、 通过可见光链路传输的数据包的数据包标识；
LLC 实体模块， 用于根据所述通信模块接收的所述响应信息， 获取所述 终端成功接收的所述数据包的数据包标识；
VLC发射模块， 用于通过可见光链路向所述终端传输数据包， 传输的所 述数据包中不包含所述 LLC实体模块获取的所述数据包标识对应的数据包。
结合第二方面， 在第一种可能的实现中， 所述通信模块具体用于： 接收承载所述响应信息的无线高保真 WiFi信号或者蓝牙 BT信号或者红 外 IR信号；
或者，
接收承载所述响应信息的蜂窝无线通信信号。
结合第二方面， 在第二种可能的实现中， 所述通信模块具体用于： 接收无线通信设备发送的承载所述响应信息的响应通知消息， 所述响应 信息中携带有所述终端成功接收的、 通过可见光链路传输的数据包的数据包 标识， 所述响应通知消息由所述无线通信设备接收所述终端发送的承载响应 信息的无线通信信号后生成并发送。
结合第二方面的第二种可能的实现方式， 在第三种可能的实现方式中， 所述通信模块与所述无线通信设备通过以太网通信链路或者电力线通信链路 或者无线通信链路中的任意一种方式连接。
第三方面， 本发明提供了一种无线通信设备， 包括：
接收机， 用于接收终端发送的承载响应信息的无线通信信号， 所述响应 信息中携带有所述终端成功接收的、 通过可见光链路传输的数据包的数据包 标识， 并获取所述响应信息；
LLC 实体模块， 用于获取所述接收机获取的所述响应信息中携带的所述 数据包标识， 生成携带获取的所述数据包标识的响应通知消息；
发射机， 用于将所述 LLC实体模块生成的所述响应通知消息发送给可见 光通信设备。
结合第三方面， 在第一种可能的实现中， 所述接收机具体用于： 接收终端发送的承载响应信息的无线高保真 WiFi信号或者蓝牙 BT信号 或者红外 IR信号；
或者，
接收终端发送的承载响应信息的蜂窝无线通信信号。
结合第三方面或第一种可能的实现， 在第二种可能的实现中， 所述无线 通信设备包括：
具有 WiFi功能； 或者，
具有 BT功能； 或者，
具有 IR功能； 或者，
具有蜂窝无线通信能力。
第四方面， 本发明提供了一种可见光通信方法， 包括： 接收可见光通信设备通过可见光链路传输的数据包， 所述数据包中携带 有数据包标识；
根据成功接收的数据包生成响应信息， 所述响应信息中携带有成功接收 的数据包的数据包标识；
发送承载有所述响应信息的无线通信信号。
结合第五方面， 在第一种可能的实现中， 发送承载有所述响应信息的无 线通信信号， 包括：
发送承载有所述响应信息的无线高保真 WiFi信号或者蓝牙 BT信号或者 红外 IR信号；
或者，
发送承载有所述响应信息的蜂窝无线通信信号。
结合第四方面或第一种可能的实现， 在第二种可能的实现中， 发送承载 有所述响应信息的无线通信信号， 包括：
发送承载有所述响应信息的无线通信信号至无线通信设备， 由所述无线 通信设备将所述响应信息转发给所述可见光通信设备；
或者，
发送承载有所述响应信息的无线通信信号至所述可见光通信设备。
第五方面， 本发明提供了一种可见光通信方法， 包括：
通过可见光链路向终端发送数据包；
接收承载有终端返回的响应信息的无线通信信号， 所述响应信息中携带 有所述终端成功接收的数据包的数据包标识。
结合第五方面， 在第一种可能的实现中， 接收承载有终端返回的响应信 息的无线通信信号， 包括：
接收承载有终端返回的响应信息的无线高保真 WiFi信号或者蓝牙 BT信 号或者红外 IR信号；
或者，
接收承载有终端返回的响应信息的蜂窝无线通信信号。 结合第五方面或第一种可能的实现， 在第二种可能的实现中， 所述方法 还包括：
获取所述响应信息中携带的所述数据包标识， 向所述终端发送数据包时， 发送的所述数据包中不包含获取的所述数据包标识对应的数据包。
第六方面， 本发明提供了一种可见光通信方法， 包括：
通过可见光链路向终端发送数据包；
基于逻辑链路控制实体接收所述终端的响应信息， 所述响应信息中携带 有所述终端成功接收的数据包的数据包标识， 所述响应信息由无线通信设备 从接收的所述终端发送的无线通信信号中获得后转发。
结合第六方面， 在第一种可能的实现中， 由无线通信设备从接收的所述 终端发送的无线通信信号中获得所述响应信息， 包括：
所述无线通信设备从接收的所述终端发送的无线高保真 WiFi信号或者蓝 牙 BT信号或者红外 IR信号中获得所述响应信息；
或者，
所述无线通信设备从接收的所述终端发送的蜂窝无线通信信号中获得所 述响应信息。
结合第六方面或第一种可能的实现， 在第二种可能的实现中， 所述响应 信息由无线通信设备从接收的所述终端发送的无线通信信号中获得后转发， 包括：
所述无线通信设备通过以太网通信链路或者电力线通信链路或者无线通 信链路中的任意一种转发所述响应信息。
基于上述技术方案， 本发明实施例中， 在可见光通信场景下， 终端通过 无线通信信号向可见光通信设备反馈上行数据， 从而实现了在终端仅能够接 收可见光数据的情况下， 能够向 VLC设备反馈数据， 实现双向数据传输。 附图说明
图 1为本发明实施例中终端的结构示意图; 图 2为本发明实施例中 VLC设备的结构示意图；
图 3为本发明实施例中无线通信设备的结构示意图；
图 4为本发明实施例中终端进行可见光通信的方法流程示意图； 图 5为本发明实施例中 VLC设备进行可见光通信的方法流程示意图； 图 6 为本发明实施例中另一 VLC设备进行可见光通信的方法流程示意
¾；
图 Ί为本发明实施例中实现可见光双向通信的方法流程示意图； 图 8为本发明实施例中另一实现可见光双向通信的方法流程示意图。 具体实施方式
为了使本发明的目的、 技术方案和优点更加清楚， 下面将结合附图对本 发明作进一步地详细描述， 显然， 所描述的实施例仅仅是本发明一部分实施 例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在 没有做出创造性劳动前提下所获得的所有其它实施例， 都属于本发明保护的 范围。
本发明的核心思想为： 终端在接收可见光通信设备通过可见光链路传输 的数据包后， 通过自身所具备的除可见光通信之外的无线通信功能向可见光 通信设备反馈接收情况， 从而实现双向数据传输。
本发明第一实施例中， 如图 1所示， 提供了一种终端， 该终端主要包括： 可见光通信 VLC接收模块 101，用于接收通过可见光链路传输的数据包， 该数据包中携带有数据包标识，并传递至逻辑链路控制（ Logical Link Control,
LLC ) 实体模块；
LLC实体模块 102, 用于根据 VLC接收模块 101传递的数据包生成响应 信息， 并传递响应信息至无线通信模块 103 , 该响应信息中携带有成功接收的 数据包的数据包标识；
无线通信模块 103 , 用于发送承载有 LLC实体模块 102传递的响应信息 的无线通信信号。 优选地， 无线通信模块 103发送承载有 LLC实体模块 102生成的响应信 息的无线高保真 （Wireless Fidelity, WiFi )信号或者蓝牙 （Bluetooth, BT ) 信号或者红外 （Infra-Red, IR )信号；
或者，
发送承载有所述 LLC实体模块生成的响应信息的蜂窝无线通信信号。 具体地， 在终端的无线通信模块为 WiFi时， 无线通信模块通过 WiFi信 号携带响应信息； 在终端的无线通信模块为 BT时， 无线通信模块通过 BT信 号携带响应信息； 在终端的无线通信模块为 IR时， 无线通信模块通过 IR信 号携带响应信息。
具体地， 在终端的无线通信模块具有蜂窝无线通信能力时， 无线通信模 块通过蜂窝无线通信信号携带响应信息。
本发明第二实施例中， 如图 2所示， 提供了一种可见光通信 VLC设备， 该 VLC设备主要包括：
通信模块 201 , 用于接收承载响应信息的通信信号， 该响应信息中携带有 终端成功接收的、 通过可见光链路传输的数据包的数据包标识， 并将该响应 信息传递给 LLC实体模块 202;
LLC实体模块 202, 用于根据通信模块 201传递的响应信息， 获取终端成 功接收的数据包的数据包标识， 将获取的数据包标识传递给 VLC 发射模块 203;
VLC发射模块 203 , 用于通过可见光链路向所述终端传输数据包， 传输 的数据包中不包含 LLC实体模块 202传递的数据包标识对应的数据包。
在一个优选地实施方式中， 通信模块 201接收承载响应信息的 WiFi信号 或者 BT信号或者 IR信号；
或者， 通信模块 201接收承载响应信息的蜂窝无线通信信号。
在另一个优选地实施方式中， 通信模块 201 接收无线通信设备发送的承 载响应信息的响应通知消息， 该响应信息中携带有终端成功接收的、 通过可 见光链路传输的数据包的数据包标识， 该响应通知消息由无线通信设备接收 终端发送的承载响应信息的无线通信信号后生成并发送。
在该优选地实施方式中， 通信模块 201 与无线通信设备通过以太网通信 链路或者电力线通信链路或者无线通信链路中的任意一种方式连接。
本发明第三实施例中， 如图 3 所示， 还提供了一种无线通信设备， 该无 线通信设备主要包括：
接收机 301 , 用于接收终端发送的承载响应信息的无线通信信号， 所述响 应信息中携带有所述终端成功接收的、 通过可见光链路传输的数据包的数据 包标识；
LLC实体模块 302,用于获取接收机 301获取的响应信息中携带的数据包 标识， 生成携带获取的数据包标识的响应通知消息；
发射机 303 , 用于将 LLC实体模块 302生成的响应通知消息发送给 VLC 设备。
优选地， 接收机 301接收承载响应信息的 WiFi信号或者 BT信号或者 IR 信号； 或者，
接收承载响应信息的蜂窝无线通信信号。
具体地， 无线通信设备的发射机向 VLC设备发送响应通知消息的通信链 路可以是以太网、 电力线、 无线通信等通信链路中的任意一种。
具体地， 若无线通信设备的无线通信模块为 WiFi, 接收的无线通信信号 为 WiFi信号； 若无线通信设备的无线通信模块为 BT， 接收的无线通信信号 为 BT信号； 若无线通信设备的无线通信模块为 IR, 接收的无线通信信号为 IR信号。
具体地， 无线通信通信设备的接收机 301 具有蜂窝无线通信能力， 接收 的无线通信信号可以是蜂窝无线通信信号。 具体实施中， 具有蜂窝无线通信 能力的无线通信设备可以是小基站 (Small cell), 家庭基站 (Femto cell)或高频基 站。
具体实施中， 无线通信设备中的接收机和发射机可以釆用独立的硬件分 别实现， 也可以是集成在一个收发机中， 无论是何种实现形成， 只要能够实 现上述功能均在本发明的保护范围之内。
本发明第四实施例中， 如图 4所示， 可以但不限于以终端侧为执行主体， 实现可见光通信的详细方法流程如下：
步骤 401 : 接收可见光通信设备通过可见光链路传输的数据包， 该数据包 中携带有数据包标识。
具体地， 终端的 VLC接收模块接收 VLC设备通过可见光链路传输的数 据包，该数据包中携带有数据包标识，并将接收到的数据包传递给终端的 LLC 实体模块。
步骤 402: 根据成功接收的数据包生成响应信息， 该响应信息中携带有成 功接收的数据包的数据包标识。
具体地，终端的 LLC实体模块根据终端的 VLC接收模块传递的数据包生 成响应 （ACK )信息， 并传递该响应信息至终端的无线通信模块， 该响应信 息中携带有终端成功接收的数据包的数据包标识。
步骤 403: 发送承载有该响应信息的无线通信信号。
具体地， 终端的无线通信模块发送承载有终端的 LLC实体模块传递的响 应信息的无线通信信号。
优选地， 无线通信信号为 WiFi信号或者 BT信号或者 IR信号； 或者， 无线通信信号为蜂窝无线通信信号。
具体实施中， 若终端直接反馈响应信息至 VLC 设备， 可以根据终端与 VLC 设备之间的约定选择无线通信信号类型。 若终端和 VLC 设备均支持 WiFi, 无线通信信号可以采用 WiFi信号； 若终端和 VLC设备均支持 BT, 无 线通信信号可以采用 BT信号； 若终端和 VLC设备均支持 IR， 无线通信信号 可以采用 IR信号； 若终端和 VLC设备均支持蜂窝无线通信， 则无线通信信 号可以采用蜂窝无线通信信号。
具体实施中， 若终端通过无线通信设备中转响应信息至 VLC设备， 则可 根据终端所具备的能力， 选择无线通信设备以及所对应的无线通信信号的类 型。 例如， 若终端具有蜂窝无线通信能力， 则可通过蜂窝无线通信的接入点 设备作为中转， 将响应信息发送至 VLC设备， 具体的该蜂窝无线通信的接入 点设备可以是小基站、 家庭基站或高频基站。
优选地， 如果 VLC设备具备无线通信功能， 终端可直接发送无线通信信 号至 VLC设备， 即终端发送承载有响应信息的无线通信信号至可见光通信设 备。
优选地， 如果 VLC设备不具备无线通信功能， 终端发送的无线通信信号 通过无线通信设备转接后发送给 VLC设备， 具体过程如下：
终端发送承载有响应信息的无线通信信号至无线通信设备， 由无线通信 设备将响应信息转发给 VLC设备。
无线通信设备与 VLC设备之间的通信链路可以是以太网、 电力线、 无线 通信等通信链路中的任意一种。
本发明第五实施例中， 如图 5所示， 可以但不限于以 VLC设备为执行主 体， 且该 VLC设备具备无线通信能力， 即相应于第二实施例提供的 VLC设 备， 该 VLC设备实现可见光通信的详细方法流程如下：
步骤 501 : 通过可见光链路向终端发送数据包。
具体地， VCL设备的 VLC发射模块通过可见光链路向终端传输数据包， 该数据包中携带有数据包标识。
步骤 502: 接收承载有终端返回的响应信息的无线通信信号， 该响应信息 中携带有终端成功接收的数据包的数据包标识。
具体地， VLC设备的线通信模块接收终端返回的无线通信信号， 该无线 通信信号中承载有终端返回的响应信息， 且该响应信息中携带有终端成功接 收的数据包的数据包标识。
具体地， VLC设备的无线通信模块将响应信息传递给 VLC设备的 LLC 实体模块； VLC设备的 LLC实体模块根据响应信息获取终端成功接收的数据 包的数据包标识， 将获取的数据包标识传递给 VLC设备的 VLC发射模块； VLC设备的 VLC发射模块通过可见光链路向终端传输数据包，传输的数据包 中不包含 VLC设备的 LLC实体模块传递的数据包标识对应的数据包。 优选地， 无线通信信号为 WiFi信号或者 BT信号或者 IR信号。
优选地， VLC设备获取响应信息中携带的数据包标识， 向终端发送数据 包时， 发送的数据包中不包含获取的数据包标识对应的数据包。
本发明第六实施例中， 如图 6所示， 可以但不限于以 VLC设备为执行主 体， 且该 VLC设备不具备无线通信能力， 该 VLC设备实现可见光通信的详 细方法流程 ¾口下：
步骤 601 : 通过可见光链路向终端发送数据包。
具体地， VCL设备的 VLC发射模块通过可见光链路向终端传输数据包， 该数据包中携带有数据包标识。
步骤 602: 基于 LLC实体接收终端的响应信息， 该响应信息中携带有终 端成功接收的数据包的数据包标识， 该响应信息由无线通信设备从接收的终 端发送的无线通信信号中获得后转发。
具体地， VLC设备的 LLC实体模块接收无线通信设备发送的响应通知消 息， 并获取该响应通知消息中携带的终端成功接收的数据包的数据包标识， 将获取的数据包标识传递给 VLC设备的 VLC发射模块。
具体地， VLC设备与无线通信设备之间的通信链路通过以太网、 电力线、 无线通信等通信链路中的任意一种实现。
具体地， VLC设备的 VLC发射模块通过可见光链路向终端传输数据包， 传输的数据包中不包含 VLC设备的 LLC实体模块传递的数据包标识所对应的 数据包。
优选地， 无线通信设备从接收的、 终端发送的 WiFi信号或者蓝牙 BT信 号或者红外 IR信号中获得响应信息；
或者，
无线通信设备从接收的、 终端发送的蜂窝无线通信信号中获取响应信息。 具体实施中， 根据终端所具备的能力， 选择无线通信设备以及所对应的 无线通信信号的类型。
例如， 若终端具有蜂窝无线通信能力， 则可通过蜂窝无线通信的接入点 设备作为中转， 将响应信息发送至 VLC设备， 具体的该蜂窝无线通信的接入 点设备可以是小基站、 家庭基站或高频基站。
又例如， 若终端具备 WiFi通信能力， 则可通过具备 WiFi功能的设备作 为中转， 将响应信息传送给 VLC设备。
以下通过两个具体实施例对可见光双向通信的详细过程进行说明。
以下具体实施例中， 以 VLC设备为 VLC灯为例进行说明。
以下具体实施例中， 仅以无线通信设备为具有短距离无线通信能力的短 距离无线通信设备、 无线通信信号为短距离无线通信信号 （如 WFi ) 为例进 行说明。
第一具体实施例中， VLC灯与短距离无线通信功能集成在一个接入点设 备中， 如图 7所示， 该接入点设备同时具备 VLC发射模块 （包括 MAC层、 物理层、 发光器件等） 和短距离无线通信模块， 例如 WiFi模块或 BT模块或 IR模块。
该具体实施例中以 WiFi 实现短距离无线通信为例来进行说明， 当采用 BT或 IR进行短距离无线通信的方法， 与其类似， 此处不再赘述。
该具体实施例中， 以 LLC数据包的编号作为数据包标识。
当用户的 DL数据到达接入点设备时， 接入点设备的 LLC实体模块将该 DL数据转换为带有编号的 LLC数据包， 传递给 VLC发射模块， 通过 VLC 灯发送给用户设备。
用户设备的 VLC接收模块接收到 DL数据后， 将成功接收的 DL数据中 携带的 LLC数据包，递交到 LLC实体模块。 UE的 LLC实体模块在收到 LLC 数据包后， 通过其 WiFi模块， 向接入点设备发送一个 LLC层的 ACK消息， 其中包含了该 UE通过 VLC接收模块成功接收的 LLC数据包的编号信息。
接入点设备的 WiFi模块在接收到含有 LLC层 ACK消息的上行链路( UL ) 数据后， 将该 ACK消息递交给 LLC实体模块。 接入点设备的 LLC实体模块 根据该 ACK消息中所含的 LLC数据包编号，获知哪些 DL数据被用户成功接 收， 据此确定各 DL数据包是否需要重传。 对于需要重传的数据， 仍然使用与初次传输相同的 LLC数据包编号， 接 入点设备通过 VLC 发射模块发送给用户设备。 对于新数据， 釆用新的 LLC 数据包编号， 通过 VLC发射模块发送给用户设备。
第二具体实施例中， VLC灯、 短距无线通信功能分属两个不同设备的情 况。 如图 8所示， VLC灯具有 VLC数据发送能力， 具备短距离无线通信功能 的短距无线通信接入点可以是 WiFi接入点（ AP )或 BT设备或 IR设备， VLC 灯与短距无线通信接入点之间可以通过以太网、 电力线、 无线等方式通信。
该具体实施例中以采用 WiFi实现短距离无线通信功能为例进行说明， 采 用 BT或 IR进行短距无线通信的方法， 与其类似， 此处不再贅述。
该具体实施例中 , 以 LLC数据包的编号作为数据包标识。
当用户的 DL数据到达 VLC灯时， VLC灯的 LLC实体模块将该 DL数据 转换为具备编号的 LLC数据包，由 VLC发射模块通过 VLC链路发送携带 LLC 数据包的下行链路（DL )数据给用户设备。
用户设备的 VLC接收模块接收到 DL数据后， 将成功接收的 DL数据中 携带的 LLC数据包， 递交到用户设备的 LLC实体模块。 UE的 LLC实体在收 到 LLC数据包后，通过其 WiFi模块，向 WiFi AP发送一个 LLC层 ACK消息， 其中包含了该 UE通过 VLC接收模块成功接收的 LLC数据包的编号信息。
WiFi AP在接收到含有 LLC层 ACK消息的上行链路 ( UL )数据后， 向 VLC灯发送 ACK通知消息， 该 ACK通知消息中含有 LLC层 ACK消息所包 含的 LLC数据包编号。
VLC灯根据该 ACK通知消息中所含的 LLC数据包编号， 获知哪些 DL 数据被用户成功接收，据此确定各 DL数据包是否需要重传。对于需要重传数 据，仍然使用与初次传输相同的 LLC数据包编号，通过 VLC发射模块发送给 用户设备。 对于新数据， 采用新的 LLC数据包编号， 通过 VLC发射模块发送 给用户设备。
基于上述技术方案， 本发明实施例中， 在可见光通信场景下， 终端通过 无线通信信号向可见光通信设备反馈上行数据， 从而实现了在终端仅能够接 收可见光数据的情况下， 能够向 VLC设备反馈数据， 实现双向数据传输， 从 而利用可见光频谱资源， 提高了接入点的通信速率， 能够更好地满足用户的 数据业务需求。
本领域内的技术人员应明白， 本发明的实施例可提供为方法、 系统、 或 计算机程序产品。 因此， 本发明可采用完全硬件实施例、 完全软件实施例、 或结合软件和硬件方面的实施例的形式。 而且， 本发明可采用在一个或多个 其中包含有计算机可用程序代码的计算机可用存储介质 (包括但不限于磁盘 存储器和光学存储器等） 上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、 设备（系统）、 和计算机程序产 品的流程图和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图 和 /或方框图中的每一流程和 /或方框、 以及流程图和 /或方框图中的流程 和 /或方框的结合。 可提供这些计算机程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器， 使得通 过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流 程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设 备以特定方式工作的计算机可读存储器中， 使得存储在该计算机可读存储器 中的指令产生包括指令装置的制造品， 该指令装置实现在流程图一个流程或 多个流程和 /或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上， 使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的 处理， 从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图 一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的步 骤。
显然， 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本 发明的精神和范围。 这样， 倘若本发明的这些修改和变型属于本发明权利要 求及其等同技术的范围之内， 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种终端， 其特征在于， 包括：
可见光通信 VLC接收模块， 用于接收通过可见光链路传输的数据包， 所 述数据包中携带有数据包标识；
LLC实体模块，用于根据所述 VLC接收模块接收的所述数据包生成响应 信息， 所述响应信息中携带有成功接收的数据包的数据包标识；
无线通信模块， 用于发送承载有所述 LLC实体模块生成的所述响应信息 的无线通信信号。
2、如权利要求 1所述的终端， 其特征在于， 所述无线通信模块具体用于： 发送承载有所述 LLC实体模块生成的响应信息的无线高保真 WiFi信号或 者蓝牙 BT信号或者红外 IR信号；
或者，
发送承载有所述 LLC实体模块生成的响应信息的蜂窝无线通信信号。
3、 一种可见光通信 VLC设备， 其特征在于， 包括：
通信模块， 用于接收承载响应信息的通信信号， 所述响应信息中携带有 终端成功接收的、 通过可见光链路传输的数据包的数据包标识；
LLC 实体模块， 用于根据所述通信模块接收的所述响应信息， 获取所述 终端成功接收的所述数据包的数据包标识；
VLC发射模块， 用于通过可见光链路向所述终端传输数据包， 传输的所 述数据包中不包含所述 LLC实体模块获取的所述数据包标识对应的数据包。
4、 如权利要求 3所述的设备， 其特征在于， 所述通信模块具体用于： 接收承载所述响应信息的无线高保真 WiFi信号或者蓝牙 BT信号或者红 外 IR信号；
或者，
接收承载所述响应信息的蜂窝无线通信信号。
5、 如权利要求 3所述的设备， 其特征在于， 所述通信模块具体用于： 接收无线通信设备发送的承载所述响应信息的响应通知消息， 所述响应 信息中携带有所述终端成功接收的、 通过可见光链路传输的数据包的数据包 标识， 所述响应通知消息由所述无线通信设备接收所述终端发送的承载响应 信息的无线通信信号后生成并发送。
6、 如权利要求 5所述的设备， 其特征在于， 所述通信模块与所述无线通 信设备通过以太网通信链路或者电力线通信链路或者无线通信链路中的任意 一种方式连接。
7、 一种无线通信设备， 其特征在于， 包括：
接收机， 用于接收终端发送的承载响应信息的无线通信信号， 所述响应 信息中携带有所述终端成功接收的、 通过可见光链路传输的数据包的数据包 标识， 并获取所述响应信息；
LLC 实体模块， 用于获取所述接收机获取的所述响应信息中携带的所述 数据包标识， 生成携带获取的所述数据包标识的响应通知消息；
发射机， 用于将所述 LLC实体模块生成的所述响应通知消息发送给可见 光通信设备。
8、 如权利要求 7所述的无线通信设备， 其特征在于， 所述接收机具体用 于：
接收终端发送的承载响应信息的无线高保真 WiFi信号或者蓝牙 BT信号 或者红外 IR信号；
或者，
接收终端发送的承载响应信息的蜂窝无线通信信号。
9、 如权利要求 7或 8所述的无线通信设备， 其特征在于， 所述无线通信 设备包括：
具有 WiFi功能； 或者，
具有 BT功能； 或者，
具有 IR功能； 或者，
具有蜂窝无线通信能力。
10、 一种可见光通信方法， 其特征在于， 包括：
接收可见光通信设备通过可见光链路传输的数据包， 所述数据包中携带 有数据包标识；
根据成功接收的数据包生成响应信息， 所述响应信息中携带有成功接收 的数据包的数据包标识；
发送承载有所述响应信息的无线通信信号。
11、 如权利要求 10所述的方法， 其特征在于， 发送承载有所述响应信息 的无线通信信号， 包括：
发送承载有所述响应信息的无线高保真 WiFi信号或者蓝牙 BT信号或者 红外 IR信号；
或者，
发送承载有所述响应信息的蜂窝无线通信信号。
12、 如权利要求 10或 11 所述的方法， 其特征在于， 发送承载有所述响 应信息的无线通信信号， 包括：
发送承载有所述响应信息的无线通信信号至无线通信设备， 由所述无线 通信设备将所述响应信息转发给所述可见光通信设备；
或者，
发送承载有所述响应信息的无线通信信号至所述可见光通信设备。
13、 一种可见光通信方法， 其特征在于， 包括：
通过可见光链路向终端发送数据包；
接收承载有终端返回的响应信息的无线通信信号， 所述响应信息中携带 有所述终端成功接收的数据包的数据包标识。
14、 如权利要求 13所述的方法， 其特征在于， 接收承载有终端返回的响 应信息的无线通信信号， 包括：
接收承载有终端返回的响应信息的无线高保真 WiFi信号或者蓝牙 BT信 号或者红外 IR信号；
或者， 接收承载有终端返回的响应信息的蜂窝无线通信信号。
15、 如权利要求 13或 14所述的方法， 其特征在于， 所述方法还包括： 获取所述响应信息中携带的所述数据包标识， 向所述终端发送数据包时， 发送的所述数据包中不包含获取的所述数据包标识对应的数据包。
16、 一种可见光通信方法， 其特征在于， 包括：
通过可见光链路向终端发送数据包；
基于逻辑链路控制实体接收所述终端的响应信息， 所述响应信息中携带 有所述终端成功接收的数据包的数据包标识， 所述响应信息由无线通信设备 从接收的所述终端发送的无线通信信号中获得后转发。
17、 如权利要求 16所述的方法， 其特征在于， 由无线通信设备从接收的 所述终端发送的无线通信信号中获得所述响应信息， 包括：
所述无线通信设备从接收的所述终端发送的无线高保真 WiFi信号或者蓝 牙 BT信号或者红外 IR信号中获得所述响应信息；
或者，
所述无线通信设备从接收的所述终端发送的蜂窝无线通信信号中获得所 述响应信息。
18、 如权利要求 16或 17所述的方法， 其特征在于， 所述响应信息由无 线通信设备从接收的所述终端发送的无线通信信号中获得后转发， 包括： 所述无线通信设备通过以太网通信链路或者电力线通信链路或者无线通 信链路中的任意一种转发所述响应信息。
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