WO2019105291A1 - 一种终端与基站的通信、终端的入网方法和装置 - Google Patents
一种终端与基站的通信、终端的入网方法和装置 Download PDFInfo
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- WO2019105291A1 WO2019105291A1 PCT/CN2018/117107 CN2018117107W WO2019105291A1 WO 2019105291 A1 WO2019105291 A1 WO 2019105291A1 CN 2018117107 W CN2018117107 W CN 2018117107W WO 2019105291 A1 WO2019105291 A1 WO 2019105291A1
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- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a power saving command
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Definitions
- the present invention relates to the field of communications technologies, and in particular, to a terminal and a base station communication method, a terminal and a base station communication device, a terminal network access method, and a terminal network access device.
- LoRa is a kind of ultra-long-distance transmission scheme based on spread spectrum technology in the Internet of Things, which has the characteristics of long transmission distance, low power consumption, multi-node and low cost.
- a LoRa network usually includes a terminal, a base station, and a server.
- the uplink signal of the terminal is directly received by the base station, and the downlink signal of the base station is directly received by the terminal.
- the signals of the base station and the terminal cannot reach each other due to the attenuation. For example, if the terminal is installed underground, the signal strength will be attenuated, making it impossible to communicate between the base station and the terminal.
- embodiments of the present application are provided to provide a terminal and base station communication method, a terminal and base station communication apparatus, and a terminal network access method, which overcome the above problems or at least partially solve the above problems.
- a network access device for a terminal is provided.
- the embodiment of the present application discloses a communication method between a terminal and a base station, including:
- the relay device Transmitting, by the terminal, a network access request frame with a first preamble to the relay device, where the relay device is configured to receive the network access request frame according to the first preamble, and send a second preamble to the base station
- the network access request frame of the code and receiving an incoming network response frame returned by the base station; the length of the second preamble is smaller than the length of the first preamble;
- the terminal receives an incoming network response frame sent by the relay device.
- the method further includes:
- the terminal receives a downlink data frame sent by the relay device.
- the step of the terminal sending the network access request frame with the first preamble to the relay device includes:
- the terminal If the terminal does not receive the network access response frame in the first receiving window and the second receiving window after transmitting the network access request frame with the second preamble, the terminal sends the first message to the relay device.
- the terminal If the terminal receives the incoming response frame in the second receiving window after transmitting the network access request frame with the second preamble, the terminal sends the network access request frame with the first preamble to the relay device.
- the method further includes:
- the terminal If the terminal receives the network access request frame in the first receiving window after sending the network access request frame with the first preamble, the terminal sends the network access request frame with the second preamble to the base station. .
- the method further includes:
- the terminal If the terminal does not receive the incoming response frame in the first receiving window and the second receiving window after sending the network access request frame with the first preamble, the terminal sends the The incoming request frame of the second preamble.
- the step of the terminal receiving the network response frame sent by the relay device includes:
- the terminal receives the network access response frame sent by the relay device in the second receiving window after the network access request frame with the first preamble is sent.
- the step of the terminal receiving the downlink data frame sent by the relay device includes:
- the embodiment of the present application further discloses a method for accessing a terminal, including:
- the terminal If the terminal receives the network response frame in the second receiving window after sending the network access request frame with the second preamble, the terminal switches from the normal mode to the relay mode;
- the terminal sends an access request frame with a first preamble in a relay mode; the length of the second preamble is smaller than the length of the first preamble;
- the method further includes:
- the terminal After receiving the network access request frame with the second preamble, the terminal receives the network response frame and enters the network in the normal mode.
- the method further includes:
- the terminal After receiving the network access request frame with the first preamble, the terminal receives the network response frame and enters the network in a relay mode.
- the embodiment of the present application further discloses a communication method between a terminal and a base station, including:
- the terminal If the terminal enters the network in the normal mode, the terminal sends an uplink data frame with the second preamble to the base station in the normal mode;
- the terminal sends an uplink data frame with a first preamble to the relay device in a relay mode;
- the relay device is configured to replace the first preamble with the second preamble a preamble, and forwarding, to the base station, an uplink data frame with the second preamble; the length of the second preamble is smaller than a length of the first preamble;
- the terminal receives a downlink data frame returned by the base station and returned by the base station.
- the step of the terminal receiving the downlink data frame returned by the base station includes:
- the step of receiving, by the terminal, the downlink data frame returned by the base station by the relay device comprises:
- the embodiment of the present application further discloses a communication method between a terminal and a base station, including:
- the relay device receives the network access request frame with the first preamble sent by the terminal;
- the relay device replaces the first preamble with a second preamble, and sends a network access request frame with the second preamble to the base station; the length of the second preamble is smaller than the first The length of the preamble;
- the relay device receives an incoming network response frame returned by the base station, and sends the incoming network response frame to the terminal.
- the method further includes:
- the relay device replaces the first preamble with a second preamble, and sends an uplink data frame with the second preamble to the base station;
- the relay device receives a downlink data frame returned by the base station, and sends the downlink data frame to the terminal.
- the step of receiving, by the relay device, the network access request frame with the first preamble sent by the terminal includes:
- the relay device periodically wakes up from an intermittent sleep state, and detects whether there is a first preamble when waking up;
- the relay device receives the network access request frame after the first preamble.
- the step of the relay device sending the network response frame to the terminal includes:
- the relay device sends the network response frame to the terminal in a second receiving window after the terminal sends a network access request frame with a first preamble;
- the relay device After transmitting the incoming response frame, the relay device enters an intermittent sleep state.
- the step of receiving, by the relay device, the uplink data frame with the first preamble sent by the terminal includes:
- the relay device periodically wakes up from an intermittent sleep state, and detects whether there is a first preamble when waking up;
- the relay device receives an uplink data frame after the first preamble.
- the step of the relay device sending the downlink data frame to the terminal includes:
- the relay device sends a downlink data frame to the terminal in a second receiving window after the terminal sends the uplink data frame with the first preamble;
- the relay device After transmitting the downlink data frame, the relay device enters an intermittent sleep state.
- the wake-up period of the relay device is smaller than the length of the first preamble.
- the embodiment of the present application further discloses a method for accessing a terminal, including:
- the relay device receives the network access request frame with the first preamble sent by the terminal in the relay mode;
- the relay device replaces the first preamble with a second preamble, and sends a network access request frame with the second preamble to the base station; the length of the second preamble is smaller than the first The length of the preamble;
- the relay device receives an incoming network response frame returned by the base station, and sends the incoming network response frame to the terminal.
- the step of receiving, by the relay device, the network access request frame with the first preamble sent by the terminal in the relay mode comprises:
- the relay device periodically wakes up from an intermittent sleep state, and detects whether there is a first preamble when waking up;
- the relay device receives the network access request frame after the first preamble.
- the step of the relay device sending the network response frame to the terminal includes:
- the relay device sends the network response frame to the terminal in a second receiving window after the terminal sends a network access request frame with a first preamble;
- the relay device After transmitting the incoming response frame, the relay device enters an intermittent sleep state.
- the wake-up period of the relay device is smaller than the length of the first preamble.
- the embodiment of the present application further discloses a communication method between a terminal and a base station, including:
- the relay device receives the uplink data frame with the first preamble sent by the terminal that is connected to the network in the relay mode;
- the relay device replaces the first preamble with a second preamble, and sends an uplink data frame with the second preamble to the base station; the length of the second preamble is smaller than the first The length of the preamble;
- the relay device receives a downlink data frame returned by the base station, and forwards the downlink data frame to the terminal.
- the receiving, by the terminal, the uplink data frame with the first preamble sent by the terminal that is connected to the network in the relay mode includes:
- the relay device periodically wakes up from an intermittent sleep state, and detects whether there is a first preamble when waking up;
- the relay device receives the uplink data frame after the first preamble.
- the step of forwarding, by the relay device, the downlink data frame to the terminal includes:
- the relay device sends a downlink data frame to the terminal in a second receiving window after the terminal sends the uplink data frame with the first preamble;
- the relay device After transmitting the downlink data frame, the relay device enters an intermittent sleep state.
- the wake-up period of the relay device is smaller than the length of the first preamble.
- the embodiment of the present application further discloses a communication device between a terminal and a base station, including:
- a first preamble request frame sending module that is located at the terminal, configured to send a network access request frame with a first preamble to the relay device, where the relay device is configured to receive the network access according to the first preamble And requesting a frame, and sending the network access request frame with a second preamble to the base station, and receiving an incoming network response frame returned by the base station; the length of the second preamble is smaller than a length of the first preamble;
- the network response frame receiving module of the terminal is configured to receive an incoming network response frame sent by the relay device.
- the method further includes:
- a first preamble data frame sending module of the terminal configured to send an uplink data frame with the first preamble to the relay device;
- the relay device is further configured to use the first preamble according to the first preamble Receiving the uplink data frame, and sending the uplink data frame with a second preamble to the base station; receiving a downlink data frame returned by the base station;
- the downlink data frame receiving module of the terminal is configured to receive a downlink data frame sent by the relay device.
- the first preamble request frame sending module includes:
- a first preamble request frame sending submodule configured to: if the terminal does not receive the network access response frame in the first receiving window and the second receiving window after sending the network access request frame with the second preamble, Transmitting, by the terminal, a network access request frame with a first preamble to the relay device;
- a second preamble request frame transmission submodule configured to: if the terminal receives an incoming network response frame in a second receiving window after sending the network access request frame with the second preamble, the terminal sends the network response frame to the relay device An incoming request frame with a first preamble is sent.
- the method further includes:
- a third preamble request frame sending module located at the terminal, is configured to: if the terminal receives the network access request frame in the first receiving window after sending the network access request frame with the first preamble, The base station transmits an incoming request frame with a second preamble.
- the method further includes:
- a fourth preamble request frame sending module located at the terminal, if the terminal does not receive the first receiving window and the second receiving window after sending the network access request frame with the first preamble In the network response frame, the network access request frame with the second preamble is sent to the base station.
- the network response frame receiving module includes:
- the network response frame receiving sub-module is configured to receive the network response frame sent by the relay device in a second receiving window after the network access request frame with the first preamble is sent.
- the downlink data frame receiving module includes:
- a downlink data frame receiving submodule configured to receive a downlink data frame sent by the relay device in a second receiving window after sending the uplink data frame with the first preamble.
- the embodiment of the present application further discloses a network access device of a terminal, including:
- a second preamble request frame sending module located at the terminal, configured to send a network access request frame with a second preamble in a normal mode
- a first mode switching module of the terminal configured to switch from a normal mode if the terminal receives the network response frame in the second receiving window after sending the network access request frame with the second preamble To relay mode;
- a first preamble request frame sending module that is located at the terminal, configured to send a network access request frame with a first preamble in a relay mode; a length of the second preamble is smaller than a length of the first preamble;
- a second mode switching module where the terminal receives the network response frame in the first receiving window after sending the network access request frame with the first preamble; or The terminal does not receive the network access response frame in the first receiving window and the second receiving window after transmitting the network access request frame with the first preamble; and then switches from the relay mode to the normal mode.
- the method further includes:
- the first network response frame receiving module of the terminal is configured to receive the network response frame in a normal mode in a first receiving window after sending the network access request frame with the second preamble.
- the method further includes:
- the first network response frame receiving module of the terminal is configured to receive the network response frame in a relay mode and enter the network in a second receiving window after the network access request frame with the first preamble is sent.
- the embodiment of the present application further discloses a communication device between a terminal and a base station, including:
- a second preamble data frame sending module of the terminal configured to send an uplink data frame with a second preamble to the base station in a normal mode if the terminal enters the network in a normal mode;
- a first downlink data frame receiving module of the terminal configured to receive a downlink data frame returned by the base station
- a first preamble data frame sending module of the terminal configured to send an uplink data frame with a first preamble to a relay device in a relay mode if the terminal enters the network in a relay mode;
- the relay device is configured to replace the first preamble with a second preamble, and forward an uplink data frame with the second preamble to a base station; the length of the second preamble is smaller than the first The length of the preamble;
- a second downlink data frame receiving module that is located at the terminal, and is configured to receive a downlink data frame that is forwarded by the relay device and returned by the base station.
- the first downlink data frame receiving module includes:
- a first downlink data frame receiving submodule configured to receive a downlink data frame returned by the base station in a first receiving window after sending the uplink data frame with the second preamble.
- the second downlink data frame receiving module includes:
- a second downlink data frame receiving submodule configured to receive, in a second receiving window after sending the uplink data frame with the first preamble, a downlink data frame that is forwarded by the relay device and returned by the base station .
- the embodiment of the present application further discloses a communication device between a terminal and a base station, including:
- a first preamble request frame receiving module where the terminal device is configured to receive a network access request frame with a first preamble sent by the terminal;
- a first preamble requesting frame forwarding module of the relay device configured to replace the first preamble with a second preamble, and send a network access request frame with the second preamble to the base station;
- the length of the second preamble is smaller than the length of the first preamble;
- An incoming network response frame forwarding module of the relay device is configured to receive an incoming network response frame returned by the base station, and send the incoming network response frame to the terminal.
- the method further includes:
- a first preamble data frame receiving module of the relay device configured to receive an uplink data frame with a first preamble sent by the terminal
- a first preamble data frame forwarding module of the relay device configured to replace the first preamble with a second preamble, and send an uplink data frame with the second preamble to the base station;
- a downlink data frame forwarding module of the relay device configured to receive a downlink data frame returned by the base station, and send the downlink data frame to the terminal.
- the first preamble request frame receiving module includes:
- a first preamble detection submodule configured to periodically wake up from an intermittent sleep state, and detect whether there is a first preamble when waking up;
- the first preamble request frame receiving submodule is configured to receive the network access request frame after the first preamble if the first preamble is detected.
- the network response frame forwarding module includes:
- the network response frame forwarding sub-module is configured to send the network response frame to the terminal in a second receiving window after the terminal sends the network access request frame with the first preamble;
- the first dormant submodule is configured to enter an intermittent sleep state after transmitting the incoming response frame.
- the first preamble data frame receiving module includes:
- a second preamble detection submodule configured to periodically wake up from an intermittent sleep state, and detect whether there is a first preamble when waking up;
- the first preamble data frame receiving submodule is configured to receive an uplink data frame after the first preamble if the first preamble is detected.
- the downlink data frame forwarding module includes:
- a downlink data frame forwarding submodule configured to send a downlink data frame to the terminal in a second receiving window after the terminal sends the uplink data frame with the first preamble
- the second sleep sub-module is configured to enter an intermittent sleep state after transmitting the downlink data frame.
- the wake-up period of the relay device is smaller than the length of the first preamble.
- the embodiment of the present application further discloses a network access device of a terminal, including:
- a first preamble request frame receiving module of the relay device configured to receive an access request frame with a first preamble sent by the terminal in a relay mode
- a first preamble requesting frame forwarding module of the relay device configured to replace the first preamble with a second preamble, and send a network access request frame with the second preamble to the base station;
- the length of the second preamble is smaller than the length of the first preamble;
- An incoming network response frame forwarding module of the relay device is configured to receive an incoming network response frame returned by the base station, and send the incoming network response frame to the terminal.
- the first preamble request frame receiving module includes:
- a first preamble detection submodule configured to periodically wake up from an intermittent sleep state, and detect whether there is a first preamble when waking up;
- the first preamble request frame receiving submodule is configured to: if the first preamble is detected, the relay device receives the network access request frame after the first preamble.
- the network response frame forwarding module includes:
- the network response frame forwarding sub-module is configured to send the network response frame to the terminal in a second receiving window after the terminal sends the network access request frame with the first preamble;
- the sleep sub-module is configured to enter an intermittent sleep state after transmitting the network response frame.
- the wake-up period of the relay device is smaller than the length of the first preamble.
- the embodiment of the present application further discloses a communication device between a terminal and a base station, including:
- a first preamble data frame receiving module of the relay device configured to receive an uplink data frame with a first preamble sent by a terminal that accesses the network in a relay mode
- a first preamble data frame forwarding module of the relay device configured to replace the first preamble with a second preamble, and send an uplink data frame with the second preamble to the base station;
- the length of the second preamble is smaller than the length of the first preamble;
- a downlink data frame forwarding module of the relay device configured to receive a downlink data frame returned by the base station, and forward the downlink data frame to the terminal.
- the first preamble data frame receiving module includes:
- a first preamble detection submodule configured to periodically wake up from an intermittent sleep state, and detect whether there is a first preamble when waking up;
- the first preamble data frame receiving submodule is configured to: if the first preamble is detected, the relay device receives the uplink data frame after the first preamble.
- the downlink data frame forwarding module includes:
- a downlink data frame forwarding submodule configured to send a downlink data frame to the terminal in a second receiving window after the terminal sends the uplink data frame with the first preamble
- the sleep sub-module is used to enter an intermittent sleep state after transmitting the downlink data frame.
- the wake-up period of the relay device is smaller than the length of the first preamble.
- the embodiment of the present application also discloses an apparatus, including:
- One or more processors are One or more processors.
- One or more machine-readable media having instructions stored thereon, when executed by the one or more processors, cause the apparatus to perform one or more of the methods described above.
- Embodiments of the present application also disclose one or more machine-readable media having stored thereon instructions that, when executed by one or more processors, cause the apparatus to perform one or more of the methods described above.
- the terminal may send the network access request frame with the first preamble to the relay device, and the relay device forwards the network access request frame to the base station, and then the relay device returns the network response frame returned by the base station. Send to the terminal to complete the network access process of the terminal.
- the terminal may send the uplink data frame with the first preamble to the relay device, and the relay device forwards the uplink data frame to the base station, and then the relay device returns the downlink data of the base station.
- the frame is sent to the terminal to complete the communication process between the terminal and the base station.
- the terminal may access the network through the relay device and communicate with the base station.
- the LoRaWAN radio frame format of the terminal is not changed, and only the length of the preamble is lengthened.
- Such a relay device does not adopt a proprietary frame structure, but is highly compatible with the LoRaWAN standard, and provides a guarantee for the unified LoRa relay standard of each manufacturer.
- Embodiment 1 is a flow chart showing the steps of Embodiment 1 of a method for communicating a terminal and a base station according to the present application;
- Embodiment 1 of a method for accessing a terminal of the present application
- Embodiment 3 is a flow chart showing the steps of Embodiment 2 of a method for communicating between a terminal and a base station according to the present application;
- Embodiment 4 is a flow chart showing the steps of Embodiment 3 of a method for communicating between a terminal and a base station according to the present application;
- Embodiment 2 is a flow chart showing the steps of Embodiment 2 of a method for accessing a terminal of the present application
- Embodiment 4 is a flow chart showing the steps of Embodiment 4 of a method for communication between a terminal and a base station according to the present application;
- FIG. 7 is a flow chart of communication between a terminal and a base station in the embodiment of the present application.
- Embodiment 8 is a structural block diagram of Embodiment 1 of a communication apparatus for a terminal and a base station according to the present application;
- Embodiment 9 is a structural block diagram of Embodiment 1 of a network access device of a terminal according to the present application.
- Embodiment 10 is a structural block diagram of Embodiment 2 of a communication device between a terminal and a base station according to the present application;
- Embodiment 11 is a structural block diagram of Embodiment 3 of a communication apparatus for a terminal and a base station according to the present application;
- Embodiment 12 is a structural block diagram of Embodiment 2 of a network access device of a terminal according to the present application;
- FIG. 13 is a structural block diagram of Embodiment 4 of a communication apparatus for a terminal and a base station according to the present application.
- a LoRa network consists of a terminal node, a base station node, and a server.
- the terminal has a LoRa network connection capability and is connected to the LoRa network.
- the terminal may include different electronic devices according to different application scenarios deployed by the LoRa network. For example, when the LoRa network is applied to urban management, the terminal may include a smart meter; and the LoRa network is used in a digital home.
- the terminal can include various smart home appliances and the like.
- the base station also referred to as a gateway or concentrator in the LoRa network, has a wireless connection aggregation function, including the terminal providing access to the LoRa network, forwarding data from the server or the terminal, and realizing data between the terminal and the server. Interaction.
- the base station can also perform data interaction by transmitting wireless frames with other base stations within the signal coverage of the base station.
- the server may include a server or a server cluster for performing service processing according to data acquired from the base station or the terminal, and controlling the working mode and working state of the base station or the terminal.
- One of the core concepts of the embodiments of the present application is to provide a LoRa relay device between the terminal and the base station, and establish communication between the terminal and the base station through the LoRa relay device.
- Embodiment 1 of a method for communication between a terminal and a base station is shown, which may include the following steps:
- Step 101 The terminal sends a network access request frame with a first preamble to the relay device, where the relay device is configured to receive the network access request frame according to the first preamble, and send a packet to the base station. And the network access request frame of the second preamble, and receiving the network response frame returned by the base station; the length of the second preamble is smaller than the length of the first preamble;
- the terminal sends a network access request frame with a second preamble to the base station. If the terminal can receive the network access frame returned by the base station, the standard network access is successful.
- a LoRa relay device is disposed between the terminal and the base station, and communication between the terminal and the base station can be established by using the relay device.
- the terminal is buried underground, 500 meters from the base station. If the terminal cannot receive the base station signal because of the obstacle of the ground, the relay device can be placed above the ground of the buried point of the terminal to function as a signal relay.
- the relay device first accesses the LoRa network as a standard node according to a standard network access procedure. That is, the relay device first sends an incoming request frame with the second preamble to the base station, and then receives the incoming response frame returned by the base station. After the standard network access is successful, the relay device performs an intermittent sleep state to save power.
- the terminal may send a network access request frame with the first preamble to the relay device that has entered the network.
- the preamble is a regular wireless signal that informs the wireless receiver that the wireless signal behind it contains valid information.
- the second preamble and the first preamble are both a wireless signal before the network request frame.
- the second preamble is a standard preamble, which is a preamble in a standard format specified by the LoRaWAN protocol.
- the first preamble is a long preamble, and the length of the first preamble is longer than the length of the second preamble.
- the length of the preamble can include the length of time.
- the first preamble is to activate the dormant wireless receiver, so its length is longer than the length of the second preamble. For example, the receiver's sleep period is 4 seconds, and the first preamble must be at least 4 seconds in length.
- the relay device periodically wakes up from the intermittent sleep state, and when waking up, the relay device detects whether the first preamble exists. If the first preamble is detected, the relay device activates the data receiving function to receive the radio frame after the first preamble.
- the step 101 may include the following sub-steps:
- Sub-step S11 if the terminal does not receive the network access response frame in the first receiving window and the second receiving window after transmitting the network access request frame with the second preamble, the terminal sends the network response frame to the relay device.
- Sub-step S12 if the terminal receives the network access response frame in the second receiving window after sending the network access request frame with the second preamble, the terminal sends the first preamble to the relay device. Incoming request frame.
- the terminal needs to open two short receiving windows after each uplink transmission: a first receiving window RX (receive) 1 and a second receiving window RX2, a start time of the first receiving window and the second receiving window.
- the specification is based on the end of the uplink transmission.
- the relay device is configured to perform downlink transmission to the terminal within the second receiving window after the terminal uplink transmission.
- the terminal if the terminal does not receive the incoming response frame in the first receiving window and the second receiving window after transmitting the network access request frame with the second preamble, the standard network access is considered to be unsuccessful. At this time, the terminal sends a network access request frame with the first preamble to the relay device.
- the terminal receives the incoming response frame in the second receiving window after transmitting the network access request frame with the second preamble, the standard network access is considered to be unsuccessful. At this time, the terminal sends a network access request frame with the first preamble to the relay device.
- the standard access network is considered successful only when the terminal receives the incoming response frame in the first receiving window after transmitting the network access request frame with the second preamble.
- the method may further include:
- the terminal If the terminal receives the network access request frame in the first receiving window after sending the network access request frame with the first preamble, the terminal sends the network access request frame with the second preamble to the base station. .
- the terminal may initiate a standard network access procedure again, and send a network access request frame with a second preamble to the base station.
- the method may further include:
- the terminal If the terminal does not receive the incoming response frame in the first receiving window and the second receiving window after sending the network access request frame with the first preamble, the terminal sends the The incoming request frame of the second preamble.
- the terminal does not receive the network access request frame in the first receiving window and the second receiving window after transmitting the network access request frame with the first preamble, the network access process through the relay device is also considered to be failure.
- the terminal can initiate a standard network access procedure to the base station again after a period of sleep.
- the terminal is considered to be successfully connected to the network through the relay device only when the terminal receives the incoming network response frame in the second receiving window after the network access request frame with the first preamble is received.
- the relay device after the relay device receives the network access request frame with the first preamble sent by the terminal, the relay device replaces the first preamble in front of the network request frame with the second preamble.
- the incoming request frame with the second preamble is then forwarded to the base station.
- the base station After receiving the network access request frame forwarded by the relay device, the base station returns an incoming network response frame to the relay device, and the network response frame is also preceded by a second preamble, and the relay device receives the incoming network response frame according to the preamble. Finally, the relay device returns the incoming response frame with the second preamble to the terminal, and the terminal successfully accesses the network.
- Step 102 The terminal receives an incoming network response frame sent by the relay device.
- the terminal After receiving the incoming network response frame forwarded by the relay device, the terminal completes the network access.
- the step 102 may include the following sub-steps:
- Sub-step S21 the terminal receives the network access response frame sent by the relay device in the second receiving window after the network access request frame with the first preamble is sent.
- the relay device transmits the downlink to the terminal within the second receiving window after the uplink transmission of the terminal.
- the terminal may receive the network response frame sent by the relay device in the second receiving window after the network access request frame with the first preamble is sent.
- the method may further include: after receiving the network response frame, the terminal sends an uplink data frame with the first preamble to the relay device;
- the device is further configured to receive the uplink data frame according to the first preamble, and send the uplink data frame with a second preamble to the base station; and receive a downlink data frame returned by the base station;
- the relay device After the terminal successfully accesses the network through the relay device, each time the uplink data frame is sent, the first preamble is required.
- the relay device needs to receive an uplink data frame according to the first preamble.
- the relay device After receiving the uplink data frame, the relay device replaces the first preamble before the uplink data frame with the second preamble, and then sends the uplink data frame with the first preamble to the base station.
- the base station After receiving the uplink data frame, the base station returns a downlink data frame with the second preamble to the relay device, and the relay device forwards the downlink data frame with the second preamble to the terminal.
- the method may further include: receiving, by the terminal, a downlink data frame sent by the relay device.
- the terminal receives the downlink data frame returned by the base station and is forwarded by the relay device, thereby completing communication between the terminal and the base station.
- the step of the terminal receiving the downlink data frame sent by the relay device may include the following sub-steps:
- Sub-step S31 the terminal receives the downlink data frame sent by the relay device in the second receiving window after the uplink data frame with the first preamble is sent.
- the relay device transmits the downlink to the terminal within the second receiving window after the uplink transmission of the terminal.
- the terminal may receive the downlink data frame sent by the relay device in the second receiving window after transmitting the uplink data frame with the first preamble.
- the terminal may send the network access request frame with the first preamble to the relay device, and the relay device forwards the network access request frame to the base station, and then the relay device returns the network response frame returned by the base station. Send to the terminal to complete the network access process of the terminal.
- the terminal may send the uplink data frame with the first preamble to the relay device, and the relay device forwards the uplink data frame to the base station, and then the relay device returns the downlink data of the base station.
- the frame is sent to the terminal to complete the communication process between the terminal and the base station.
- the terminal may access the network through the relay device and communicate with the base station.
- the LoRaWAN radio frame format of the terminal is not changed, and only the length of the preamble is lengthened.
- Such a relay device does not adopt a proprietary frame structure, but is highly compatible with the LoRaWAN standard, and provides a guarantee for the unified LoRa relay standard of each manufacturer.
- the following describes the network access process of the terminal from the perspective of the terminal.
- Embodiment 1 of the method for accessing a terminal of the present application is shown, which may specifically include the following steps:
- Step 201 The terminal sends an access request frame with a second preamble in a normal mode.
- the terminal has two working modes: a normal mode and a relay mode.
- the terminal can initiate the network access process in normal mode or relay mode.
- the terminal may first send the network access request frame with the second preamble to the base station.
- the sending method can be broadcast, unicast, and the like.
- Step 202 If the terminal receives the network response frame in the second receiving window after sending the network access request frame with the second preamble, the terminal switches from the normal mode to the relay mode.
- the relay device is configured to send data to the terminal in a second receiving window after the terminal uplinks.
- the terminal may consider that the incoming response frame is forwarded by the relay device instead of directly receiving the base station. Sent. At this time, the terminal switches from the normal mode to the relay mode, and initiates the network access process in the relay mode.
- the method may further include:
- the terminal After receiving the network access request frame with the second preamble, the terminal receives the network response frame and enters the network in the normal mode.
- the terminal may consider that the incoming response frame is directly received by the direct receiving. At this point, the terminal enters the network in normal mode.
- Step 203 The terminal sends an access request frame with a first preamble in a relay mode; the length of the second preamble is smaller than a length of the first preamble;
- the terminal may first send the network access request frame with the first preamble to the relay.
- the sending method can be broadcast, unicast, and the like.
- Step 204 If the terminal receives the incoming response frame in the first receiving window after sending the network access request frame with the first preamble, or if the terminal is transmitting the first preamble The first receiving window and the second receiving window after the incoming request frame of the code do not receive the incoming response frame; then the terminal switches from the relay mode to the normal mode.
- the terminal may consider that the incoming response frame is directly received by the direct receiving. At this point, the terminal can switch to the normal mode and try to enter the network in the normal mode.
- the network access process through the relay device also fails. After the terminal is asleep for a period of time, the terminal initiates a standard network access procedure to the base station again.
- the method may further include:
- the terminal After receiving the network access request frame with the first preamble, the terminal receives the network response frame and enters the network in a relay mode.
- the terminal is considered to be successfully connected to the network through the relay device only when the terminal receives the incoming network response frame in the second receiving window after the network access request frame with the first preamble is received.
- the terminal may send the network access request frame with the first preamble to the relay device, and the relay device forwards the network access request frame to the base station, and then the relay device returns the network response frame returned by the base station. Send to the terminal to complete the network access process of the terminal.
- the communication flow after the terminal enters the network is introduced from the perspective of the terminal.
- FIG. 3 a flow chart of the steps of the second embodiment of the communication method between the terminal and the base station of the present application is shown.
- Step 301 If the terminal enters the network in the normal mode, the terminal sends an uplink data frame with the second preamble to the base station in the normal mode.
- the terminal has two working modes: a normal mode and a relay mode.
- the terminal can initiate the network access process in normal mode or relay mode.
- the data uplink mode of the terminal is to add a second preamble before the uplink data frame, and then send the uplink data frame with the second preamble to the base station.
- Step 302 The terminal receives a downlink data frame returned by the base station.
- the terminal directly receives the downlink data frame returned by the base station.
- the step 302 may include the following sub-steps:
- Sub-step S41 the terminal receives the downlink data frame returned by the base station in the first receiving window after the uplink data frame with the second preamble is sent.
- the terminal may directly receive the downlink data frame returned by the base station in the first receiving window after the normal mode sends the uplink data frame with the second preamble.
- Step 303 If the terminal enters the network in the relay mode, the terminal sends an uplink data frame with the first preamble to the relay device in the relay mode; the relay device is used to replace the second preamble with the second preamble. Transmitting, by the first preamble, an uplink data frame with the second preamble to a base station; the length of the second preamble is smaller than a length of the first preamble;
- the data uplink mode of the terminal is to add a first preamble before the uplink data frame, and then send the uplink data frame with the first preamble to the relay device.
- the relay device After receiving the uplink data frame, the relay device replaces the first preamble with the second preamble and forwards the uplink data frame with the second preamble to the base station.
- Step 304 The terminal receives a downlink data frame returned by the base station and returned by the base station.
- the terminal receives the downlink data frame sent by the base station and forwarded by the relay device.
- the step 304 may include the following sub-steps:
- Sub-step S51 the terminal receives, in the second receiving window after the uplink data frame with the first preamble, the downlink data frame returned by the relay device and returned by the base station.
- the relay device is configured to initiate downlink transmission to the terminal in the second receiving window after the terminal uplink transmission.
- the terminal may receive the downlink data frame returned by the base station and forwarded by the relay device in the second receiving window after the uplink data frame with the first preamble is sent in the relay mode.
- the terminal may send the uplink data frame with the first preamble to the relay device, and the relay device forwards the uplink data frame to the base station, and then the relay The device sends the downlink data frame returned by the base station to the terminal, and completes the communication process between the terminal and the base station.
- FIG. 4 a flow chart of the steps of the method for the communication between the terminal and the base station in the present application is shown in the following steps.
- Step 401 The relay device receives a network access request frame with a first preamble sent by the terminal.
- a LoRa relay device is disposed between the terminal and the base station, and communication between the terminal and the base station can be established by using the relay device.
- the terminal can initiate the network access process to the relay device. First, the terminal sends a network access request frame with the first preamble to the relay device.
- the relay device may have a CAD (Channel Activity Detection) mode.
- the channel activity detection mode is designed to detect the LoRa preamble on the wireless channel with the highest possible power consumption efficiency.
- the relay device quickly scans the frequency band to detect the preamble of the LoRa radio frame.
- the step 401 may include the following sub-steps:
- Sub-step S61 the relay device periodically wakes up from the intermittent sleep state, and detects whether there is a first preamble when waking up;
- Sub-step S62 if the first preamble is detected, the relay device receives the network access request frame after the first preamble.
- the relay device first accesses the LoRa network as a standard node according to a standard network access procedure. That is, the relay device first sends an incoming request frame with the second preamble to the base station, and then receives the incoming response frame returned by the base station. After the standard network access is successful, the relay device performs an intermittent sleep state to save power.
- the relay device periodically wakes up from the intermittent sleep state, and detects whether the first preamble is detected when waking up. If the first preamble is detected, the relay device activates the data receiving function to receive the radio frame after the first preamble.
- the aging period of the relay device is smaller than the length of the first preamble, so that the first preamble is not missed when the relay device wakes up.
- the wakeup period of the relay device is 4s, that is, the relay device wakes up every 4s, and the length of the first preamble is greater than or equal to 4s.
- Step 402 The relay device replaces the first preamble with a second preamble, and sends a network access request frame with the second preamble to the base station; the length of the second preamble is smaller than Describe the length of the first preamble;
- the relay device replaces the first preamble with the second preamble and forwards the network access request frame with the second preamble to the base station.
- Step 403 The relay device receives an incoming network response frame returned by the base station, and sends the incoming network response frame to the terminal.
- the base station After receiving the network access request frame forwarded by the relay device, the base station returns an incoming network response frame to the relay device, and the network response frame is also preceded by a second preamble, and the relay device receives the incoming network response frame according to the preamble. Finally, the relay device returns the incoming response frame with the second preamble to the terminal, and the terminal successfully accesses the network.
- the step of the relay device sending the network response frame to the terminal may include the following sub-steps:
- Sub-step S71 the relay device sends the network response frame to the terminal in a second receiving window after the terminal sends the network access request frame with the first preamble;
- Sub-step S72 after transmitting the network response frame, the relay device enters an intermittent sleep state.
- the relay device is configured to perform downlink transmission to the terminal within the second receiving window after the terminal uplink transmission. Therefore, the relay device sends the network response frame to the terminal in the second receiving window after the terminal sends the network access request frame with the first preamble. After the relay device sends the incoming response frame, it enters the intermittent sleep state and waits for the next wakeup.
- the method may further include: the relay device receives an uplink data frame with a first preamble sent by the terminal;
- the uplink data frame with the first preamble is sent to the relay device.
- the step of the relay device receiving the uplink data frame with the first preamble sent by the terminal may include the following sub-steps:
- Sub-step S81 the relay device periodically wakes up from the intermittent sleep state, and detects whether there is a first preamble when waking up;
- Sub-step S82 if the first preamble is detected, the relay device receives the uplink data frame after the first preamble.
- the method may further include: the relay device replaces the first preamble with a second preamble, and sends uplink data with the second preamble to the base station. frame;
- the relay device replaces the first preamble with the second preamble and forwards the uplink data frame with the second preamble to the base station.
- the method may further include: the relay device receives a downlink data frame returned by the base station, and sends the downlink data frame to the terminal.
- the step of the relay device sending the downlink data frame to the terminal may include the following sub-steps:
- Sub-step S91 the relay device sends a downlink data frame to the terminal in a second receiving window after the terminal sends the uplink data frame with the first preamble;
- Sub-step S92 after transmitting the downlink data frame, the relay device enters an intermittent sleep state.
- the relay device is configured to perform downlink transmission to the terminal within the second receiving window after the terminal uplink transmission. Therefore, the relay device transmits the downlink data frame to the terminal in the second receiving window after the terminal transmits the uplink data frame with the first preamble. After transmitting the downlink data frame, the relay device enters an intermittent sleep state and waits for the next wake-up.
- the terminal may send the network access request frame with the first preamble to the relay device, and the relay device forwards the network access request frame to the base station, and then the relay device returns the network response frame returned by the base station. Send to the terminal to complete the network access process of the terminal.
- the terminal may send the uplink data frame with the first preamble to the relay device, and the relay device forwards the uplink data frame to the base station, and then the relay device returns the downlink data of the base station.
- the frame is sent to the terminal to complete the communication process between the terminal and the base station.
- the terminal may access the network through the relay device and communicate with the base station.
- the LoRaWAN radio frame format of the terminal is not changed, and only the length of the preamble is lengthened.
- Such a relay device does not adopt a proprietary frame structure, but is highly compatible with the LoRaWAN standard, and provides a guarantee for the unified LoRa relay standard of each manufacturer.
- the following describes the network access process of the terminal from the perspective of the relay device.
- Embodiment 2 of the method for accessing a terminal of the present application is shown, which may specifically include the following steps:
- Step 501 The relay device receives an access request frame with a first preamble sent by the terminal in a relay mode.
- the terminal has two working modes: a normal mode and a relay mode.
- the terminal can initiate the network access process in normal mode or relay mode.
- the terminal may first send the network access request frame with the first preamble to the relay.
- the sending method can be broadcast, unicast, and the like.
- the step 501 may include the following sub-steps:
- Sub-step S1001 the relay device periodically wakes up from the intermittent sleep state, and detects whether there is a first preamble when waking up;
- Sub-step S1002 if the first preamble is detected, the relay device receives the network access request frame after the first preamble.
- the aging period of the relay device is smaller than the length of the first preamble, so that the first preamble is not missed when the relay device wakes up.
- the relay device periodically wakes up from the intermittent sleep state, and detects whether the first preamble is detected when waking up. If the first preamble is detected, the relay device activates the data receiving function to receive the radio frame after the first preamble.
- the relay device may have a CAD mode.
- the channel activity detection mode is designed to detect the LoRa preamble on the wireless channel with the highest possible power consumption efficiency.
- the relay device quickly scans the frequency band to detect the preamble of the LoRa radio frame.
- Step 502 The relay device replaces the first preamble with a second preamble, and sends a network access request frame with the second preamble to the base station; the length of the second preamble is smaller than Describe the length of the first preamble;
- Step 503 The relay device receives an incoming network response frame returned by the base station, and sends the incoming network response frame to the terminal.
- the step of the relay device sending the network response frame to the terminal includes the following sub-steps:
- Sub-step S1101 the relay device sends the network response frame to the terminal in a second receiving window after the terminal sends the network access request frame with the first preamble;
- Sub-step S1102 after transmitting the network response frame, the relay device enters an intermittent sleep state.
- the terminal may send the network access request frame with the first preamble to the relay device, and the relay device forwards the network access request frame to the base station, and then the relay device returns the network response frame returned by the base station. Send to the terminal to complete the network access process of the terminal.
- the following describes the communication flow after the terminal enters the network from the perspective of the relay device.
- FIG. 6 a flow chart of the steps in the method for communicating with a terminal and a base station according to the present application is shown in the following steps.
- Step 601 The relay device receives an uplink data frame with a first preamble sent by a terminal that accesses the network in a relay mode.
- the terminal has two working modes: a normal mode and a relay mode.
- the terminal can initiate the network access process in normal mode or relay mode.
- the data uplink mode of the terminal is to add a first preamble before the uplink data frame, and then send the uplink data frame with the first preamble to the relay device.
- the step 601 may include the following sub-steps:
- Sub-step S1201 the relay device periodically wakes up from the intermittent sleep state, and detects whether there is a first preamble when waking up;
- Sub-step S1202 if the first preamble is detected, the relay device receives the uplink data frame after the first preamble.
- the aging period of the relay device is smaller than the length of the first preamble.
- the relay device may have a CAD mode.
- the channel activity detection mode is designed to detect the LoRa preamble on the wireless channel with the highest possible power consumption efficiency.
- the relay device quickly scans the frequency band to detect the preamble of the LoRa radio frame.
- the relay device periodically wakes up from the intermittent sleep state, and detects whether the first preamble is detected when waking up. If the first preamble is detected, the relay device activates the data receiving function to receive the radio frame after the first preamble.
- Step 602 The relay device replaces the first preamble with a second preamble, and sends an uplink data frame with the second preamble to the base station; the length of the second preamble is smaller than Describe the length of the first preamble;
- the relay device After receiving the uplink data frame, the relay device replaces the first preamble with the second preamble and forwards the uplink data frame with the second preamble to the base station.
- Step 603 The relay device receives a downlink data frame returned by the base station, and forwards the downlink data frame to the terminal.
- the step 603 described in the embodiment of the present application may include the following sub-steps:
- Sub-step S1301 the relay device sends a downlink data frame to the terminal in a second receiving window after the terminal sends the uplink data frame with the first preamble;
- Sub-step S1302 after transmitting the downlink data frame, the relay device enters an intermittent sleep state.
- the relay device is configured to perform downlink transmission to the terminal within the second receiving window after the terminal uplink transmission. Therefore, the relay device transmits the downlink data frame to the terminal in the second receiving window after the terminal transmits the uplink data frame with the first preamble. After transmitting the downlink data frame, the relay device enters an intermittent sleep state and waits for the next wake-up.
- the terminal may send the uplink data frame with the first preamble to the relay device, and the relay device forwards the uplink data frame to the base station, and then the relay The device sends the downlink data frame returned by the base station to the terminal, and completes the communication process between the terminal and the base station.
- FIG. 7 is a flowchart of communication between a terminal and a base station in the embodiment of the present application.
- the LoRa relay device sends a network request frame to the LoRa base station as a standard node.
- the LoRa relay receives the incoming network determination frame returned by the LoRa base station as a standard node, and then enters an intermittent sleep state.
- the LoRa terminal sends the network access request frame with the second preamble in the normal mode, but does not receive the incoming network response frame, and the standard network access process fails.
- the LoRa terminal switches to the relay mode, and sends the network access request frame with the first preamble in the relay mode.
- the LoRa relay device is activated by the first preamble, receives the network access request frame, and replaces the first preamble with the second preamble, and then forwards the network access request frame with the first preamble to the LoRa base station.
- the LoRa relay device receives the incoming network response frame returned by the LoRa base station.
- the LoRa relay device forwards the incoming network acknowledgement frame to the LoRa terminal in the relay mode in the RX2 window, and then enters the intermittent sleep state.
- the LoRa terminal transmits the uplink data frame with the first preamble in a relay mode.
- the LoRa relay device is activated by the first preamble, receives the uplink data frame, and replaces the first preamble with the second preamble, and then forwards the uplink data frame with the first preamble to the LoRa base station.
- the LoRa relay device receives the downlink data frame returned by the LoRa base station.
- the LoRa relay device forwards the downlink data frame to the LoRa terminal in the relay mode in the RX2 window, and then enters the intermittent sleep state, waiting for the next activation.
- FIG. 8 is a structural block diagram of Embodiment 1 of a communication device between a terminal and a base station according to the present application, and specifically includes the following modules:
- a first preamble requesting frame sending module 801 configured to send, to the relay device, an incoming request frame with a first preamble; the relay device is configured to receive the according to the first preamble And the network access request frame is sent to the base station, and the network access request frame with the second preamble is sent to the base station, and the network response frame returned by the base station is received; the length of the second preamble is smaller than the length of the first preamble ;
- the network response frame receiving module 802 of the terminal is configured to receive an incoming network response frame sent by the relay device.
- the device may further include:
- a first preamble data frame sending module of the terminal configured to send an uplink data frame with the first preamble to the relay device;
- the relay device is further configured to use the first preamble according to the first preamble Receiving the uplink data frame, and sending the uplink data frame with a second preamble to the base station; receiving a downlink data frame returned by the base station;
- the downlink data frame receiving module of the terminal is configured to receive a downlink data frame sent by the relay device.
- the first preamble request frame sending module 801 may include:
- a first preamble request frame sending submodule configured to: if the terminal does not receive the network access response frame in the first receiving window and the second receiving window after sending the network access request frame with the second preamble, Transmitting, by the terminal, a network access request frame with a first preamble to the relay device;
- a second preamble request frame transmission submodule configured to: if the terminal receives an incoming network response frame in a second receiving window after sending the network access request frame with the second preamble, the terminal sends the network response frame to the relay device An incoming request frame with a first preamble is sent.
- the device may further include:
- a third preamble request frame sending module located at the terminal, is configured to: if the terminal receives the network access request frame in the first receiving window after sending the network access request frame with the first preamble, The base station transmits an incoming request frame with a second preamble.
- the device may further include:
- a fourth preamble request frame sending module located at the terminal, if the terminal does not receive the first receiving window and the second receiving window after sending the network access request frame with the first preamble In the network response frame, the network access request frame with the second preamble is sent to the base station.
- the network response frame receiving module 802 may include:
- the network response frame receiving sub-module is configured to receive the network response frame sent by the relay device in a second receiving window after the network access request frame with the first preamble is sent.
- the downlink data frame receiving module may include:
- a downlink data frame receiving submodule configured to receive a downlink data frame sent by the relay device in a second receiving window after sending the uplink data frame with the first preamble.
- Embodiment 1 of a network access device of a terminal of the present application is shown, which may specifically include the following modules:
- the first mode switching module 902 of the terminal is configured to: if the terminal receives the network response frame in the second receiving window after sending the network access request frame with the second preamble, the normal mode is received. Switch to relay mode;
- the second mode switching module 904 is configured to receive the network response frame in the first receiving window after the terminal sends the network access request frame with the first preamble; or The terminal does not receive the incoming response frame in the first receiving window and the second receiving window after transmitting the network access request frame with the first preamble; and then switches from the relay mode to the normal mode.
- the device may further include:
- the first network response frame receiving module of the terminal is configured to receive the network response frame in a normal mode in a first receiving window after sending the network access request frame with the second preamble.
- the device may further include:
- the first network response frame receiving module of the terminal is configured to receive the network response frame in a relay mode and enter the network in a second receiving window after the network access request frame with the first preamble is sent.
- FIG. 10 a structural block diagram of a second embodiment of a communication device between a terminal and a base station according to the present application is shown. Specifically, the following modules may be included:
- the second preamble data frame sending module 1001 is located at the terminal, and is configured to send an uplink data frame with a second preamble to the base station in a normal mode if the terminal enters the network in a normal mode;
- the first downlink data frame receiving module 1002 located at the terminal is configured to receive a downlink data frame returned by the base station;
- the first preamble data frame sending module 1003 of the terminal is configured to: if the terminal enters the network in the relay mode, the terminal sends the uplink data frame with the first preamble to the relay device in the relay mode.
- the relay device is configured to replace the first preamble with a second preamble, and forward an uplink data frame with the second preamble to a base station; the length of the second preamble is smaller than the first The length of a preamble;
- the second downlink data frame receiving module 1004 located at the terminal is configured to receive a downlink data frame that is forwarded by the relay device and returned by the base station.
- the first downlink data frame receiving module 1002 may include:
- a first downlink data frame receiving submodule configured to receive a downlink data frame returned by the base station in a first receiving window after sending the uplink data frame with the second preamble.
- the second downlink data frame receiving module 1004 may include:
- a second downlink data frame receiving submodule configured to receive, in a second receiving window after sending the uplink data frame with the first preamble, a downlink data frame that is forwarded by the relay device and returned by the base station .
- Embodiment 3 of a communication device between a terminal and a base station may specifically include the following modules:
- the first preamble request frame receiving module 1101 is located at the relay device, and is configured to receive the network access request frame with the first preamble sent by the terminal;
- a first preamble requesting frame forwarding module 1102 located at the relay device, configured to replace the first preamble with a second preamble, and send a network access request frame with the second preamble to the base station
- the length of the second preamble is less than the length of the first preamble
- the network response frame forwarding module 1103 of the relay device is configured to receive an incoming network response frame returned by the base station, and send the network response frame to the terminal.
- the device may further include:
- a first preamble data frame receiving module of the relay device configured to receive an uplink data frame with a first preamble sent by the terminal
- a first preamble data frame forwarding module of the relay device configured to replace the first preamble with a second preamble, and send an uplink data frame with the second preamble to the base station;
- a downlink data frame forwarding module of the relay device configured to receive a downlink data frame returned by the base station, and send the downlink data frame to the terminal.
- the first preamble request frame receiving module 1101 may include:
- a first preamble detection submodule configured to periodically wake up from an intermittent sleep state, and detect whether there is a first preamble when waking up;
- the first preamble request frame receiving submodule is configured to receive the network access request frame after the first preamble if the first preamble is detected.
- the network response frame forwarding module 1103 may include:
- the network response frame forwarding sub-module is configured to send the network response frame to the terminal in a second receiving window after the terminal sends the network access request frame with the first preamble;
- the first dormant submodule is configured to enter an intermittent sleep state after transmitting the incoming response frame.
- the first preamble data frame receiving module may include:
- a second preamble detection submodule configured to periodically wake up from an intermittent sleep state, and detect whether there is a first preamble when waking up;
- the first preamble data frame receiving submodule is configured to receive an uplink data frame after the first preamble if the first preamble is detected.
- the downlink data frame forwarding module may include:
- a downlink data frame forwarding submodule configured to send a downlink data frame to the terminal in a second receiving window after the terminal sends the uplink data frame with the first preamble
- the second sleep sub-module is configured to enter an intermittent sleep state after transmitting the downlink data frame.
- the aging period of the relay device is smaller than the length of the first preamble.
- Embodiment 2 of a network access device of a terminal of the present application is shown, which may specifically include the following modules:
- a first preamble request frame receiving module 1201 located at the relay device, configured to receive a network access request frame with a first preamble sent by the terminal in a relay mode;
- a first preamble requesting frame forwarding module 1202 located at the relay device, configured to replace the first preamble with a second preamble, and send a network access request frame with the second preamble to the base station
- the length of the second preamble is less than the length of the first preamble
- An incoming network response frame forwarding module 1203 located at the relay device is configured to receive an incoming network response frame returned by the base station, and send the incoming network response frame to the terminal.
- the first preamble request frame receiving module 1201 may include:
- a first preamble detection submodule configured to periodically wake up from an intermittent sleep state, and detect whether there is a first preamble when waking up;
- the first preamble request frame receiving submodule is configured to: if the first preamble is detected, the relay device receives the network access request frame after the first preamble.
- the network response frame forwarding module 1203 may include:
- the network response frame forwarding sub-module is configured to send the network response frame to the terminal in a second receiving window after the terminal sends the network access request frame with the first preamble;
- the sleep sub-module is configured to enter an intermittent sleep state after transmitting the network response frame.
- the aging period of the relay device is smaller than the length of the first preamble.
- Embodiment 4 of a communication apparatus for a terminal and a base station is shown, which may specifically include the following modules:
- a first preamble data frame forwarding module 1302 located at the relay device, configured to replace the first preamble with a second preamble, and send an uplink data frame with the second preamble to the base station
- the length of the second preamble is less than the length of the first preamble
- the downlink data frame forwarding module 1303 of the relay device is configured to receive a downlink data frame returned by the base station, and forward the downlink data frame to the terminal.
- the first preamble data frame receiving module 1301 may include:
- a first preamble detection submodule configured to periodically wake up from an intermittent sleep state, and detect whether there is a first preamble when waking up;
- the first preamble data frame receiving submodule is configured to: if the first preamble is detected, the relay device receives the uplink data frame after the first preamble.
- the downlink data frame forwarding module 1303 may include:
- a downlink data frame forwarding submodule configured to send a downlink data frame to the terminal in a second receiving window after the terminal sends the uplink data frame with the first preamble
- the sleep sub-module is used to enter an intermittent sleep state after transmitting the downlink data frame.
- the aging period of the relay device is smaller than the length of the first preamble.
- the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.
- the embodiment of the present application further provides an apparatus, including:
- One or more processors are One or more processors.
- One or more machine readable medium having instructions stored thereon, when executed by the one or more processors, causes the apparatus to perform the methods described in the embodiments of the present application.
- the embodiments of the present application further provide one or more machine readable mediums having instructions stored thereon that, when executed by one or more processors, cause the apparatus to perform the methods described in the embodiments of the present application.
- embodiments of the embodiments of the present application can be provided as a method, apparatus, or computer program product. Therefore, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, embodiments of the present application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
- computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
- Embodiments of the present application are described with reference to flowcharts and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
- These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing terminal device to produce a machine such that instructions are executed by a processor of a computer or other programmable data processing terminal device
- Means are provided for implementing the functions specified in one or more of the flow or in one or more blocks of the flow chart.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing terminal 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 instruction device implements the functions specified in one or more blocks of the flowchart or in a flow or block of the flowchart.
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Abstract
本申请实施例提供了一种终端与基站的通信、终端的入网方法和装置,所述终端与基站的通信包括:所述终端向中继设备发送带有第一前导码的入网请求帧;所述中继设备用于依据所述第一前导码接收所述入网请求帧,并向所述基站发送带第二前导码的所述入网请求帧,并接收所述基站返回的入网响应帧;所述第二前导码的长度小于所述第一前导码的长度;所述终端接收所述中继设备发送的入网响应帧。本申请实施例中,终端可以通过中继设备入网,并与基站通信。本申请实施例中没有改变终端的LoRaWAN无线帧格式,仅仅加长了前导码的长度。这样的中继设备没有采用私有的帧结构,而是与LoRaWAN标准高度兼容,为各厂商统一LoRa中继标准提供了保障。
Description
本申请要求2017年11月28日递交的申请号为201711218307.9、发明名称为“一种终端与基站的通信、终端的入网方法和装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及通信技术领域,特别是涉及一种终端与基站的通信方法、一种终端与基站的通信装置、一种终端的入网方法和一种终端的入网装置。
物联网技术是继计算机和互联网之后的第三次信息技术革命,具有实时性和交互性等优点,已经被广泛应用于城市管理、数字家庭、定位导航、物流管理、安保系统等多个领域。其中,LoRa是物联网中一种基于扩频技术的超远距离传输方案,具有传输距离远、低功耗、多节点和低成本等特性。
现有的数据传输方法中,LoRa网络中通常包括终端、基站和服务器。
一般情况下,终端的上行信号直接被基站所接收,基站的下行信号也会直接被终端所接收。但是在有些情况下,基站和终端的信号由于衰减而无法相互到达对方。例如,终端被安装在地下,信号强度会衰减,使得基站和终端之间无法通信。
发明内容
鉴于上述问题,提出了本申请实施例以便提供一种克服上述问题或者至少部分地解决上述问题的一种终端与基站的通信方法、一种终端与基站的通信装置、一种终端的入网方法和一种终端的入网装置。
为了解决上述问题,本申请实施例公开了一种终端与基站的通信方法,包括:
所述终端向中继设备发送带有第一前导码的入网请求帧;所述中继设备用于依据所述第一前导码接收所述入网请求帧,并向所述基站发送带第二前导码的所述入网请求帧,并接收所述基站返回的入网响应帧;所述第二前导码的长度小于所述第一前导码的长度;
所述终端接收所述中继设备发送的入网响应帧。
优选的,还包括:
所述终端向所中继设备发送带有所述第一前导码的上行数据帧;所述中继设备还用 于依据所述第一前导码接收所述上行数据帧,并向所述基站发送带第二前导码的所述上行数据帧;接收所述基站返回的下行数据帧;
所述终端接收所述中继设备发送的下行数据帧。
优选的,所述终端向中继设备发送带有第一前导码的入网请求帧的步骤包括:
若所述终端在发送带有第二前导码的入网请求帧之后的第一接收窗口和第二接收窗口内,都没有接收到入网响应帧,则所述终端向中继设备发送带有第一前导码的入网请求帧;
或,
若所述终端在发送带有第二前导码的入网请求帧之后的第二接收窗口内,接收到入网响应帧,则所述终端向中继设备发送带有第一前导码的入网请求帧。
优选的,还包括:
若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口内接收到入网请求帧,则所述终端向所述基站发送带有第二前导码的入网请求帧。
优选的,还包括:
若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口和第二接收窗口内都没有接收到入网响应帧,则所述终端向所述基站发送带有第二前导码的入网请求帧。
优选的,所述终端接收所述中继设备发送的入网响应帧的步骤包括:
所述终端在发送所述带有第一前导码的入网请求帧之后的第二接收窗口内,接收所述中继设备发送的入网响应帧。
优选的,所述终端接收所述中继设备发送的下行数据帧的步骤包括:
所述终端在发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,接收所述中继设备发送的下行数据帧。
本申请实施例还公开了一种终端的入网方法,包括:
所述终端在正常模式发送带有第二前导码的入网请求帧;
若所述终端在发送所述带有第二前导码的入网请求帧之后的第二接收窗口内,接收到入网响应帧,则所述终端从正常模式切换到中继模式;
所述终端在中继模式发送带有第一前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;
若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口内,接收 到入网响应帧;或,若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口和第二接收窗口内,都没有接收到入网响应帧;则所述终端从中继模式切换到正常模式。
优选的,还包括:
所述终端在发送所述带有第二前导码的入网请求帧之后的第一接收窗口内,接收入网响应帧以正常模式入网。
优选的,还包括:
所述终端在发送所述带有第一前导码的入网请求帧之后的第二接收窗口内,接收入网响应帧以中继模式入网。
本申请实施例还公开了一种终端与基站的通信方法,包括:
若所述终端以正常模式入网,则所述终端在正常模式向基站发送带有第二前导码的上行数据帧;
所述终端接收所述基站返回的下行数据帧;
若所述终端以中继模式入网,则所述终端在中继模式向中继设备发送带有第一前导码的上行数据帧;所述中继设备用于采用第二前导码替换所述第一前导码,并向基站转发带有所述第二前导码的上行数据帧;所述第二前导码的长度小于所述第一前导码的长度;
所述终端接收所述中继设备转发的由所述基站返回的下行数据帧。
优选的,所述终端接收所述基站返回的下行数据帧的步骤包括:
所述终端在发送所述带有第二前导码的上行数据帧之后的第一接收窗口内,接收所述基站返回的下行数据帧。
优选的,所述终端接收所述中继设备转发的由所述基站返回的下行数据帧的步骤包括:
所述终端在发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,接收所述中继设备转发的由所述基站返回的下行数据帧。
本申请实施例还公开了一种终端与基站的通信方法,包括:
中继设备接收所述终端发送的带有第一前导码的入网请求帧;
所述中继设备采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;
所述中继设备接收所述基站返回的入网响应帧,并将所述入网响应帧发送至所述终 端。
优选的,还包括:
所述中继设备接收所述终端发送的带有第一前导码的上行数据帧;
所述中继设备采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的上行数据帧;
所述中继设备接收所述基站返回的下行数据帧,并将所述下行数据帧发送至所述终端。
优选的,所述中继设备接收终端发送的带有第一前导码的入网请求帧的步骤包括:
所述中继设备从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
若检测到第一前导码,则所述中继设备接收所述第一前导码之后的入网请求帧。
优选的,所述中继设备将所述入网响应帧发送至所述终端的步骤包括:
所述中继设备在所述终端发送带有第一前导码的入网请求帧之后的第二接收窗口内,将所述入网响应帧发送至所述终端;
在发送所述入网响应帧后,所述中继设备进入间歇性休眠状态。
优选的,所述中继设备接收所述终端发送的带有第一前导码的上行数据帧的步骤包括:
所述中继设备从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
若检测到第一前导码,则所述中继设备接收所述第一前导码之后的上行数据帧。
优选的,所述中继设备将所述下行数据帧发送至所述终端的步骤包括:
所述中继设备在所述终端发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,向所述终端发送下行数据帧;
在发送下行数据帧后,所述中继设备进入间歇性休眠状态。
优选的,所述中继设备的唤醒周期小于所述第一前导码的长度。
本申请实施例还公开了一种终端的入网方法,包括:
中继设备接收所述终端在中继模式下发送的带有第一前导码的入网请求帧;
所述中继设备采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;
所述中继设备接收所述基站返回的入网响应帧,并将所述入网响应帧发送至所述终端。
优选的,所述中继设备接收所述终端在中继模式下发送的带有第一前导码的入网请 求帧的步骤包括:
所述中继设备从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
若检测到第一前导码,则所述中继设备接收所述第一前导码之后的入网请求帧。
优选的,所述中继设备将所述入网响应帧发送至所述终端的步骤包括:
所述中继设备在所述终端发送带有第一前导码的入网请求帧之后的第二接收窗口内,将所述入网响应帧发送至所述终端;
在发送所述入网响应帧后,所述中继设备进入间歇性休眠状态。
优选的,所述中继设备的唤醒周期小于所述第一前导码的长度。
本申请实施例还公开了一种终端与基站的通信方法,包括:
中继设备接收以中继模式入网的终端发送的,带有第一前导码的上行数据帧;
所述中继设备采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的上行数据帧;所述第二前导码的长度小于所述第一前导码的长度;
所述中继设备接收所述基站返回的下行数据帧,并将所述下行数据帧转发至所述终端。
优选的,所述中继设备接收以中继模式入网的终端发送的,带有第一前导码的上行数据帧的包括:
所述中继设备从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
若检测到第一前导码,则所述中继设备接收第一前导码之后的上行数据帧。
优选的,所述中继设备将所述下行数据帧转发至所述终端的步骤包括:
所述中继设备在所述终端发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,向所述终端发送下行数据帧;
在发送下行数据帧后,所述中继设备进入间歇性休眠状态。
优选的,所述中继设备的唤醒周期小于所述第一前导码的长度。
本申请实施例还公开了一种终端与基站的通信装置,包括:
位于所述终端的第一前导码请求帧发送模块,用于向中继设备发送带有第一前导码的入网请求帧;所述中继设备用于依据所述第一前导码接收所述入网请求帧,并向所述基站发送带第二前导码的所述入网请求帧,并接收所述基站返回的入网响应帧;所述第二前导码的长度小于所述第一前导码的长度;
位于所述终端的入网响应帧接收模块,用于接收所述中继设备发送的入网响应帧。
优选的,还包括:
位于所述终端的第一前导码数据帧发送模块,用于向所中继设备发送带有所述第一前导码的上行数据帧;所述中继设备还用于依据所述第一前导码接收所述上行数据帧,并向所述基站发送带第二前导码的所述上行数据帧;接收所述基站返回的下行数据帧;
位于所述终端的下行数据帧接收模块,用于接收所述中继设备发送的下行数据帧。
优选的,所述第一前导码请求帧发送模块包括:
第一前导码请求帧发送子模块,用于若所述终端在发送带有第二前导码的入网请求帧之后的第一接收窗口和第二接收窗口内,都没有接收到入网响应帧,则所述终端向中继设备发送带有第一前导码的入网请求帧;
或,
第二前导码请求帧发送子模块,用于若所述终端在发送带有第二前导码的入网请求帧之后的第二接收窗口内,接收到入网响应帧,则所述终端向中继设备发送带有第一前导码的入网请求帧。
优选的,还包括:
位于所述终端的第三前导码请求帧发送模块,用于若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口内接收到入网请求帧,则向所述基站发送带有第二前导码的入网请求帧。
优选的,还包括:
位于所述终端的第四前导码请求帧发送模块,用于若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口和第二接收窗口内都没有接收到入网响应帧,则向所述基站发送带有第二前导码的入网请求帧。
优选的,所述入网响应帧接收模块包括:
入网响应帧接收子模块,用于在发送所述带有第一前导码的入网请求帧之后的第二接收窗口内,接收所述中继设备发送的入网响应帧。
优选的,所述下行数据帧接收模块包括:
下行数据帧接收子模块,用于在发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,接收所述中继设备发送的下行数据帧。
本申请实施例还公开了一种终端的入网装置,包括:
位于所述终端的第二前导码请求帧发送模块,用于在正常模式发送带有第二前导码的入网请求帧;
位于所述终端的第一模式切换模块,用于若所述终端在发送所述带有第二前导码的 入网请求帧之后的第二接收窗口内,接收到入网响应帧,则从正常模式切换到中继模式;
位于所述终端的第一前导码请求帧发送模块,用于在中继模式发送带有第一前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;
位于所述终端的第二模式切换模块,用于若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口内,接收到入网响应帧;或,若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口和第二接收窗口内,都没有接收到入网响应帧;则从中继模式切换到正常模式。
优选的,还包括:
位于所述终端的第一入网响应帧接收模块,用于在发送所述带有第二前导码的入网请求帧之后的第一接收窗口内,接收入网响应帧以正常模式入网。
优选的,还包括:
位于所述终端的第一入网响应帧接收模块,用于在发送所述带有第一前导码的入网请求帧之后的第二接收窗口内,接收入网响应帧以中继模式入网。
本申请实施例还公开了一种终端与基站的通信装置,包括:
位于所述终端的第二前导码数据帧发送模块,用于若所述终端以正常模式入网,则在正常模式向基站发送带有第二前导码的上行数据帧;
位于所述终端的第一下行数据帧接收模块,用于接收所述基站返回的下行数据帧;
位于所述终端的第一前导码数据帧发送模块,用于若所述终端以中继模式入网,则所述终端在中继模式向中继设备发送带有第一前导码的上行数据帧;所述中继设备用于采用第二前导码替换所述第一前导码,并向基站转发带有所述第二前导码的上行数据帧;所述第二前导码的长度小于所述第一前导码的长度;
位于所述终端的第二下行数据帧接收模块,用于接收所述中继设备转发的由所述基站返回的下行数据帧。
优选的,所述第一下行数据帧接收模块包括:
第一下行数据帧接收子模块,用于在发送所述带有第二前导码的上行数据帧之后的第一接收窗口内,接收所述基站返回的下行数据帧。
优选的,所述第二下行数据帧接收模块包括:
第二下行数据帧接收子模块,用于在发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,接收所述中继设备转发的由所述基站返回的下行数据帧。
本申请实施例还公开了一种终端与基站的通信装置,包括:
位于中继设备的第一前导码请求帧接收模块,用于接收所述终端发送的带有第一前导码的入网请求帧;
位于所述中继设备的第一前导码请求帧转发模块,用于采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;
位于所述中继设备的入网响应帧转发模块,用于接收所述基站返回的入网响应帧,并将所述入网响应帧发送至所述终端。
优选的,还包括:
位于所述中继设备的第一前导码数据帧接收模块,用于接收所述终端发送的带有第一前导码的上行数据帧;
位于所述中继设备的第一前导码数据帧转发模块,用于采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的上行数据帧;
位于所述中继设备的下行数据帧转发模块,用于接收所述基站返回的下行数据帧,并将所述下行数据帧发送至所述终端。
优选的,所述第一前导码请求帧接收模块包括:
第一前导码检测子模块,用于从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
第一前导码请求帧接收子模块,用于若检测到第一前导码,则接收所述第一前导码之后的入网请求帧。
优选的,所述入网响应帧转发模块包括:
入网响应帧转发子模块,用于在所述终端发送带有第一前导码的入网请求帧之后的第二接收窗口内,将所述入网响应帧发送至所述终端;
第一休眠子模块,用于在发送所述入网响应帧后,进入间歇性休眠状态。
优选的,所述第一前导码数据帧接收模块包括:
第二前导码检测子模块,用于从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
第一前导码数据帧接收子模块,用于若检测到第一前导码,则接收所述第一前导码之后的上行数据帧。
优选的,所述下行数据帧转发模块包括:
下行数据帧转发子模块,用于在所述终端发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,向所述终端发送下行数据帧;
第二休眠子模块,用于在发送下行数据帧后,进入间歇性休眠状态。
优选的,所述中继设备的唤醒周期小于所述第一前导码的长度。
本申请实施例还公开了一种终端的入网装置,包括:
位于中继设备的第一前导码请求帧接收模块,用于接收所述终端在中继模式下发送的带有第一前导码的入网请求帧;
位于所述中继设备的第一前导码请求帧转发模块,用于采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;
位于所述中继设备的入网响应帧转发模块,用于接收所述基站返回的入网响应帧,并将所述入网响应帧发送至所述终端。
优选的,所述第一前导码请求帧接收模块包括:
第一前导码检测子模块,用于从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
第一前导码请求帧接收子模块,用于若检测到第一前导码,则所述中继设备接收所述第一前导码之后的入网请求帧。
优选的,所述入网响应帧转发模块包括:
入网响应帧转发子模块,用于在所述终端发送带有第一前导码的入网请求帧之后的第二接收窗口内,将所述入网响应帧发送至所述终端;
休眠子模块,用于在发送所述入网响应帧后,进入间歇性休眠状态。
优选的,所述中继设备的唤醒周期小于所述第一前导码的长度。
本申请实施例还公开了一种终端与基站的通信装置,包括:
位于中继设备的第一前导码数据帧接收模块,用于接收以中继模式入网的终端发送的,带有第一前导码的上行数据帧;
位于所述中继设备的第一前导码数据帧转发模块,用于采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的上行数据帧;所述第二前导码的长度小于所述第一前导码的长度;
位于所述中继设备的下行数据帧转发模块,用于接收所述基站返回的下行数据帧,并将所述下行数据帧转发至所述终端。
优选的,所述第一前导码数据帧接收模块包括:
第一前导码检测子模块,用于从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
第一前导码数据帧接收子模块,用于若检测到第一前导码,则所述中继设备接收第一前导码之后的上行数据帧。
优选的,所述下行数据帧转发模块包括:
下行数据帧转发子模块,用于在所述终端发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,向所述终端发送下行数据帧;
休眠子模块,用于在发送下行数据帧后,进入间歇性休眠状态。
优选的,所述中继设备的唤醒周期小于所述第一前导码的长度。
本申请实施例还公开了一种装置,包括:
一个或多个处理器;和
其上存储有指令的一个或多个机器可读介质,当由所述一个或多个处理器执行时,使得所述装置执行如上所述的一个或多个的方法。
本申请实施例还公开了一个或多个机器可读介质,其上存储有指令,当由一个或多个处理器执行时,使得装置执行如上所述的一个或多个的方法。
本申请实施例包括以下优点:
在本申请实施例中,终端可以通过向中继设备发送带有第一前导码的入网请求帧,由中继设备将入网请求帧转发给基站,再由中继设备将基站返回的入网响应帧发送给终端,完成终端的入网过程。
终端通过中继设备入网后,终端可以通过向中继设备发送带有第一前导码的上行数据帧,由中继设备将上行数据帧转发给基站,再由中继设备将基站返回的下行数据帧发送给终端,完成终端与基站的通信过程。
本申请实施例中,终端可以通过中继设备入网,并与基站通信。本申请实施例中没有改变终端的LoRaWAN无线帧格式,仅仅加长了前导码的长度。这样的中继设备没有采用私有的帧结构,而是与LoRaWAN标准高度兼容,为各厂商统一LoRa中继标准提供了保障。
图1是本申请的一种终端与基站的通信方法实施例1的步骤流程图;
图2是本申请的一种终端的入网方法实施例1的步骤流程图;
图3是本申请的一种终端与基站的通信方法实施例2的步骤流程图;
图4是本申请的一种终端与基站的通信方法实施例3的步骤流程图;
图5是本申请的一种终端的入网方法实施例2的步骤流程图;
图6是本申请的一种终端与基站的通信方法实施例4的步骤流程图;
图7是本申请实施例中终端与基站的通信流程图;
图8是本申请的一种终端与基站的通信装置实施例1的结构框图;
图9是本申请的一种终端的入网装置实施例1的结构框图;
图10是本申请的一种终端与基站的通信装置实施例2的结构框图;
图11是本申请的一种终端与基站的通信装置实施例3的结构框图;
图12是本申请的一种终端的入网装置实施例2的结构框图;
图13是本申请的一种终端与基站的通信装置实施例4的结构框图。
为使本申请的上述目的、特征和优点能够更加明显易懂,下面结合附图和具体实施方式对本申请作进一步详细的说明。
LoRa网络由终端节点、基站节点和服务器组成。终端具有LoRa网络连接能力,并接入该LoRa网络。根据该LoRa网络所部署的应用场景的不同,该终端可以包括不同的电子设备,比如,在该LoRa网络应用于城市管理中时,该终端可以包括智能电表;在该LoRa网络应用于数字家庭中时,该终端可以包括各种智能家电等等。
基站,在LoRa网络中又称为网关或者集中器,具有无线连接汇聚功能,包括终端提供接入LoRa网络的入口,对来自服务器或终端的数据进行转发,实现该终端与该服务器之间的数据交互。当然,基站也能够与处于该基站的信号覆盖范围内的其它基站通过传输无线帧的方式进行数据交互。
服务器可以包括一个服务器或者服务器集群,用于根据从基站或终端获取到的数据进行业务处理,以及对该基站或该终端的工作模式和工作状态进行控制。
本申请实施例的核心构思之一在于,在终端和基站之间设置LoRa中继设备,通过LoRa中继设备建立终端与基站之间的通信。
以下,首先从终端的角度介绍终端与基站的通信流程。
参照图1,示出了本申请的一种终端与基站的通信方法实施例1的步骤流程图,具 体可以包括如下步骤:
步骤101,所述终端向中继设备发送带有第一前导码的入网请求帧;所述中继设备用于依据所述第一前导码接收所述入网请求帧,并向所述基站发送带第二前导码的所述入网请求帧,并接收所述基站返回的入网响应帧;所述第二前导码的长度小于所述第一前导码的长度;
在标准的入网过程中,终端会向基站发送带有第二前导码的入网请求帧,如果终端能接收到基站返回的入网响应帧,则标准入网成功。
但是当终端与基站之间的相互的信号强度不够时,终端发送的入网请求帧无法到达基站,或基站返回的入网响应帧无法到达终端,则标准入网失败。
本申请实施例中在终端和基站之间设置有LoRa中继设备,可以通过中继设备建立终端与基站之间的通信。
例如,终端埋在地下,距离基站500米。如果终端因为地面的阻碍无法接收到基站信号,这时可以把中继设备放在终端的埋设点的地面上方,起到信号中继的作用。
在本申请实施例中,中继设备作为标准节点首先按标准的入网流程接入LoRa网络。即中继设备首先向基站发送带有第二前导码的入网请求帧,然后接收基站返回的入网响应帧。在标准入网成功后,中继设备进行间歇性休眠状态以节省功耗。
当终端标准入网流程失败时,终端可以向已入网的中继设备发送带有第一前导码的入网请求帧。
前导码是一段规则的无线信号,用以通知无线接收者后面的无线信号含有有效信息。
在本申请实施例中,第二前导码和第一前导码都是入网请求帧前的一段无线信号。
第二前导码为标准前导码,是按LoRaWAN协议规定的标准格式的前导码。第一前导码为长前导码,第一前导码的长度比第二前导码的长度要长。前导码的长度可以包括时长。
第一前导码的另一个目的是激活休眠的无线接收者,所以它的长度比第二前导码的长度更长。比如接收者的休眠周期是4秒,那第一前导码的长度至少要有4秒。
在本申请实施例中,中继设备从间歇性休眠状态周期性地自我唤醒,在唤醒时,中继设备检测是否存在第一前导码。若检测到第一前导码,则中继设备激活数据接收功能,接收第一前导码之后的无线帧。
在本申请实施例中,所述步骤101可以包括如下子步骤:
子步骤S11,若所述终端在发送带有第二前导码的入网请求帧之后的第一接收窗口 和第二接收窗口内,都没有接收到入网响应帧,则所述终端向中继设备发送带有第一前导码的入网请求帧;
或,
子步骤S12,若所述终端在发送带有第二前导码的入网请求帧之后的第二接收窗口内,接收到入网响应帧,则所述终端向中继设备发送带有第一前导码的入网请求帧。
按照LoRaWAN协议,终端在每次上行传输后,都要开两个短的接收窗口:第一接收窗口RX(receive)1和第二接收窗口RX2,第一接收窗口和第二接收窗口的开始时间的规定是以上行传输结束时间为参考的。
在本申请实施例中,设定中继设备在终端上行传输之后的第二接收窗口之内向终端下行传输。
在一种情况中,如果终端在发送带有第二前导码的入网请求帧之后的第一接收窗口和第二接收窗口内,都没有接收到入网响应帧,则认为标准入网失败。此时终端向中继设备发送带有第一前导码的入网请求帧。
在另一种情况中,如果终端在发送带有第二前导码的入网请求帧之后的第二接收窗口内,接收到入网响应帧,则认为标准入网失败。此时终端向中继设备发送带有第一前导码的入网请求帧。
只有当终端在发送带有第二前导码的入网请求帧之后的第一接收窗口内,接收到入网响应帧,才认为标准入网成功。
在本申请实施例中,所述的方法还可以包括:
若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口内接收到入网请求帧,则所述终端向所述基站发送带有第二前导码的入网请求帧。
在一种情况中,如果终端在发送带有第一前导码的入网请求帧之后的第一接收窗口内接收到基站发送的入网请求帧,则认为终端与基站之间的信号强度是可以通信的。终端可以再次发起标准入网流程,向基站发送带有第二前导码的入网请求帧。
在本申请实施例中,所述的方法还可以包括:
若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口和第二接收窗口内都没有接收到入网响应帧,则所述终端向所述基站发送带有第二前导码的入网请求帧。
在一种情况中,如果终端在在发送带有第一前导码的入网请求帧之后的第一接收窗口和第二接收窗口内未接收到入网请求帧,则认为通过中继设备的入网流程也失败。终 端可以在休眠一段时间后,再次向基站发起标准入网流程。
只有当终端在发送带有第一前导码的入网请求帧之后的第二接收窗口内,接收到入网响应帧,才认为终端通过中继设备入网成功。
在本申请实施例中,当中继设备接收到终端发送的带有第一前导码的入网请求帧后,中继设备采用第二前导码替换入网请求帧前面的第一前导码。然后将带有第二前导码的入网请求帧转发给基站。
基站在接收到中继设备转发的入网请求帧后,向中继设备返回入网响应帧,该入网响应帧前也会带有第二前导码,中继设备依据该前导码接收入网响应帧。最后,中继设备将带有第二前导码的入网响应帧返回给终端,终端入网成功。
步骤102,所述终端接收所述中继设备发送的入网响应帧;
终端在接收到中继设备转发的入网响应帧后,完成入网。
在本申请实施例中,所述步骤102可以包括如下子步骤:
子步骤S21,所述终端在发送所述带有第一前导码的入网请求帧之后的第二接收窗口内,接收所述中继设备发送的入网响应帧。
在本申请实施例中,中继设备在终端上行传输之后的第二接收窗口之内向终端下行传输。
因此,终端可以在发送带有第一前导码的入网请求帧之后的第二接收窗口内,接收到中继设备发送的入网响应帧。
在本申请实施例中,所述的方法还可以包括:所述终端在接收所述入网响应帧后,向所中继设备发送带有所述第一前导码的上行数据帧;所述中继设备还用于依据所述第一前导码接收所述上行数据帧,并向所述基站发送带第二前导码的所述上行数据帧;接收所述基站返回的下行数据帧;
终端在通过中继设备入网成功后,每次发送的上行数据帧都需要带有第一前导码。中继设备需要根据该第一前导码接收上行数据帧。
中继设备接收上行数据帧后,采用第二前导码替换上行数据帧前的第一前导码,然后将带有第一前导码的上行数据帧发送给基站。
基站接收到上行数据帧后向中继设备返回带有第二前导码的下行数据帧,中继设备将该带有第二前导码的下行数据帧转发给终端。
在本申请实施例中,所述的方法还可以包括:所述终端接收所述中继设备发送的下行数据帧。
终端接收中继设备转发的由基站返回的下行数据帧,从而完成终端与基站的通信。
在本申请实施例中,所述终端接收所述中继设备发送的下行数据帧的步骤可以包括如下子步骤:
子步骤S31,所述终端在发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,接收所述中继设备发送的下行数据帧。
在本申请实施例中,中继设备在终端上行传输之后的第二接收窗口之内向终端下行传输。
因此,终端可以在发送带有第一前导码的上行数据帧之后的第二接收窗口内,接收到中继设备发送的下行数据帧。
在本申请实施例中,终端可以通过向中继设备发送带有第一前导码的入网请求帧,由中继设备将入网请求帧转发给基站,再由中继设备将基站返回的入网响应帧发送给终端,完成终端的入网过程。
终端通过中继设备入网后,终端可以通过向中继设备发送带有第一前导码的上行数据帧,由中继设备将上行数据帧转发给基站,再由中继设备将基站返回的下行数据帧发送给终端,完成终端与基站的通信过程。
本申请实施例中,终端可以通过中继设备入网,并与基站通信。本申请实施例中没有改变终端的LoRaWAN无线帧格式,仅仅加长了前导码的长度。这样的中继设备没有采用私有的帧结构,而是与LoRaWAN标准高度兼容,为各厂商统一LoRa中继标准提供了保障。
以下,从终端的角度介绍终端的入网流程。
参照图2,示出了本申请的一种终端的入网方法实施例1的步骤流程图,具体可以包括如下步骤:
步骤201,所述终端在正常模式发送带有第二前导码的入网请求帧;
在本申请实施例中,终端具有正常模式和中继模式两种工作模式。终端可以在正常模式或中继模式发起入网流程。
如果终端在正常模式发起入网流程,则终端可以首先向基站发送带有第二前导码的入网请求帧。发送方式可以是广播、单播等方式。
步骤202,若所述终端在发送所述带有第二前导码的入网请求帧之后的第二接收窗口内,接收到入网响应帧,则所述终端从正常模式切换到中继模式;
在本申请实施例中,规定了中继设备在终端上行传输之后的第二接收窗口内,向终 端发送数据。
如果终端在正常模式发送带有第二前导码的入网请求帧之后的第二接收窗口内,接收到入网响应帧,则可以认为该入网响应帧是由中继设备转发的,而不是直接接收基站发送的。此时终端从正常模式切换到中继模式,以中继模式发起入网流程。
在本申请实施例中,所述的方法还可以包括:
所述终端在发送所述带有第二前导码的入网请求帧之后的第一接收窗口内,接收入网响应帧以正常模式入网。
如果终端在正常模式发送带有第二前导码的入网请求帧之后的第一接收窗口内,接收到入网响应帧,则可以认为该入网响应帧是直接接收直接发送的。此时,终端以正常模式入网。
步骤203,所述终端在中继模式发送带有第一前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;
若终端在中继模式发起入网流程,则终端可以首先向中继发送带有第一前导码的入网请求帧。发送方式可以是广播、单播等方式。
步骤204,若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口内,接收到入网响应帧;或,若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口和第二接收窗口内,都没有接收到入网响应帧;则所述终端从中继模式切换到正常模式。
如果终端在中继模式发送带有第一前导码的入网请求帧之后的第一接收窗口内,接收到入网响应帧,则可以认为该入网响应帧是直接接收直接发送的。此时,终端可以切换到正常模式,尝试以正常模式入网。
如果终端在中继模式发送带有第一前导码的入网请求帧之后的第一接收窗口和第二接收窗口内,都没有接收到入网响应帧,则认为通过中继设备的入网流程也失败。终端可以在休眠一段时间后,再次向基站发起标准入网流程。
在本申请实施例中,所述的方法还可以包括:
所述终端在发送所述带有第一前导码的入网请求帧之后的第二接收窗口内,接收入网响应帧以中继模式入网。
只有当终端在发送带有第一前导码的入网请求帧之后的第二接收窗口内,接收到入网响应帧,才认为终端通过中继设备入网成功。
在本申请实施例中,终端可以通过向中继设备发送带有第一前导码的入网请求帧, 由中继设备将入网请求帧转发给基站,再由中继设备将基站返回的入网响应帧发送给终端,完成终端的入网过程。
以下,从终端的角度介绍终端入网后的通信流程。
参照图3,示出了本申请的一种终端与基站的通信方法实施例2的步骤流程图,具体可以包括如下步骤:
步骤301,若所述终端以正常模式入网,则所述终端在正常模式向基站发送带有第二前导码的上行数据帧;
在本申请实施例中,终端具有正常模式和中继模式两种工作模式。终端可以在正常模式或中继模式发起入网流程。
如果终端已经以正常模式入网,则终端的数据上行方式是在上行数据帧前添加第二前导码,然后将带有第二前导码的上行数据帧发送给基站。
步骤302,所述终端接收所述基站返回的下行数据帧;
终端直接接收基站返回的下行数据帧。
在本申请实施例中,所述步骤302可以包括如下子步骤:
子步骤S41,所述终端在发送所述带有第二前导码的上行数据帧之后的第一接收窗口内,接收所述基站返回的下行数据帧。
终端可以在正常模式发送带有第二前导码的上行数据帧之后的第一接收窗口内,直接接收基站返回的下行数据帧。
步骤303,若所述终端以中继模式入网,则所述终端在中继模式向中继设备发送带有第一前导码的上行数据帧;所述中继设备用于采用第二前导码替换所述第一前导码,并向基站转发带有所述第二前导码的上行数据帧;所述第二前导码的长度小于所述第一前导码的长度;
如果终端已经以中继模式入网,则终端的数据上行方式是在上行数据帧前添加第一前导码,然后将带有第一前导码的上行数据帧发送给中继设备。
中继设备接收到上行数据帧后,采用第二前导码替换第一前导码,并向基站转发带有第二前导码的上行数据帧。
步骤304,所述终端接收所述中继设备转发的由所述基站返回的下行数据帧。
终端接收中继设备转发的由基站发送的下行数据帧。
在本申请实施例中,所述步骤304可以包括如下子步骤:
子步骤S51,所述终端在发送所述带有第一前导码的上行数据帧之后的第二接收窗 口内,接收所述中继设备转发的由所述基站返回的下行数据帧。
在本申请实施例中,规定了中继设备在终端上行传输之后的第二接收窗口内向终端发起下行传输。
终端可以在中继模式发送带有第一前导码的上行数据帧之后的第二接收窗口内,接收中继设备转发的由基站返回的下行数据帧。
在本申请实施例中,终端通过中继设备入网后,终端可以通过向中继设备发送带有第一前导码的上行数据帧,由中继设备将上行数据帧转发给基站,再由中继设备将基站返回的下行数据帧发送给终端,完成终端与基站的通信过程。
以下,首先从中继设备的角度介绍终端与基站的通信流程。
参照图4,示出了本申请的一种终端与基站的通信方法实施例3的步骤流程图,具体可以包括如下步骤:
步骤401,中继设备接收终端发送的带有第一前导码的入网请求帧;
本申请实施例在终端和基站之间设置有LoRa中继设备,可以通过中继设备建立终端与基站之间的通信。
终端在标准入网流程失败后,可以向中继设备发起入网流程。首先终端向中继设备发送带有第一前导码的入网请求帧。
在本申请实施例中,中继设备可以具备CAD(Channel Activity Detection,信道活动检测)模式。
信道活动检测模式旨在以尽可能高的功耗效率检测无线信道上的LoRa前导码。在CAD模式下,中继设备快速扫描频段,以检测LoRa无线帧的前导码。
在本申请实施例中,所述步骤401可以包括如下子步骤:
子步骤S61,所述中继设备从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
子步骤S62,若检测到第一前导码,则所述中继设备接收所述第一前导码之后的入网请求帧。
在本申请实施例中,中继设备作为标准节点首先按标准的入网流程接入LoRa网络。即中继设备首先向基站发送带有第二前导码的入网请求帧,然后接收基站返回的入网响应帧。在标准入网成功后,中继设备进行间歇性休眠状态以节省功耗。
在本申请实施例中,中继设备从间歇性休眠状态周期性唤醒,在唤醒时检测是否第一前导码。若检测到第一前导码,则中继设备激活数据接收功能,接收第一前导码之后 的无线帧。
在本申请实施例中,所述中继设备的唤醒周期小于所述第一前导码的长度,以使第一前导码不会在中继设备唤醒时漏检。
例如,中继设备的唤醒周期是4s,即中继设备每4s唤醒一次,则第一前导码的长度大于或等于4s。
步骤402,所述中继设备采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;
中继设备采用第二前导码替换第一前导码,并向基站转发带有所述第二前导码的入网请求帧。
步骤403,所述中继设备接收所述基站返回的入网响应帧,并将所述入网响应帧发送至所述终端。
基站在接收到中继设备转发的入网请求帧后,向中继设备返回入网响应帧,该入网响应帧前也会带有第二前导码,中继设备依据该前导码接收入网响应帧。最后,中继设备将带有第二前导码的入网响应帧返回给终端,终端入网成功。
在本申请实施例中,所述中继设备将所述入网响应帧发送至所述终端的步骤可以包括如下子步骤:
子步骤S71,所述中继设备在所述终端发送带有第一前导码的入网请求帧之后的第二接收窗口内,将所述入网响应帧发送至所述终端;
子步骤S72,在发送所述入网响应帧后,所述中继设备进入间歇性休眠状态。
在本申请实施例中,设定中继设备在终端上行传输之后的第二接收窗口之内向终端下行传输。因此,中继设备在终端发送带有第一前导码的入网请求帧之后的第二接收窗口内,向终端发送入网响应帧。中继设备在发送入网响应帧后,进入间歇性休眠状态,等待下一次唤醒。
在本申请实施例中,所述的方法还可以包括:所述中继设备接收所述终端发送的带有第一前导码的上行数据帧;
在终端通过中继设备入网后,向中继设备发送带有第一前导码的上行数据帧。
在本申请实施例中,所述中继设备接收所述终端发送的带有第一前导码的上行数据帧的步骤可以包括如下子步骤:
子步骤S81,所述中继设备从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
子步骤S82,若检测到第一前导码,则所述中继设备接收所述第一前导码之后的上行数据帧。
在本申请实施例中,所述的方法还可以包括:所述中继设备采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的上行数据帧;
中继设备采用第二前导码替换第一前导码,并向基站转发带有第二前导码的上行数据帧。
在本申请实施例中,所述的方法还可以包括:所述中继设备接收所述基站返回的下行数据帧,并将所述下行数据帧发送至所述终端。
在本申请实施例中,所述中继设备将所述下行数据帧发送至所述终端的步骤可以包括如下子步骤:
子步骤S91,所述中继设备在所述终端发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,向所述终端发送下行数据帧;
子步骤S92,在发送下行数据帧后,所述中继设备进入间歇性休眠状态。
在本申请实施例中,设定中继设备在终端上行传输之后的第二接收窗口之内向终端下行传输。因此,中继设备在终端发送带有第一前导码的上行数据帧之后的第二接收窗口内,向终端发送下行数据帧。中继设备在发送下行数据帧后,进入间歇性休眠状态,等待下一次唤醒。
在本申请实施例中,终端可以通过向中继设备发送带有第一前导码的入网请求帧,由中继设备将入网请求帧转发给基站,再由中继设备将基站返回的入网响应帧发送给终端,完成终端的入网过程。
终端通过中继设备入网后,终端可以通过向中继设备发送带有第一前导码的上行数据帧,由中继设备将上行数据帧转发给基站,再由中继设备将基站返回的下行数据帧发送给终端,完成终端与基站的通信过程。
本申请实施例中,终端可以通过中继设备入网,并与基站通信。本申请实施例中没有改变终端的LoRaWAN无线帧格式,仅仅加长了前导码的长度。这样的中继设备没有采用私有的帧结构,而是与LoRaWAN标准高度兼容,为各厂商统一LoRa中继标准提供了保障。
以下,从中继设备的角度介绍终端的入网流程。
参照图5,示出了本申请的一种终端的入网方法实施例2的步骤流程图,具体可以包括如下步骤:
步骤501,中继设备接收所述终端在中继模式下发送的带有第一前导码的入网请求帧;
在本申请实施例中,终端具有正常模式和中继模式两种工作模式。终端可以在正常模式或中继模式发起入网流程。
若终端在中继模式发起入网流程,则终端可以首先向中继发送带有第一前导码的入网请求帧。发送方式可以是广播、单播等方式。
在本申请实施例中,所述步骤501可以包括如下子步骤:
子步骤S1001,所述中继设备从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
子步骤S1002,若检测到第一前导码,则所述中继设备接收所述第一前导码之后的入网请求帧。
在本申请实施例中,所述中继设备的唤醒周期小于所述第一前导码的长度,以使第一前导码不会在中继设备唤醒时漏检。
在本申请实施例中,中继设备从间歇性休眠状态周期性唤醒,在唤醒时检测是否第一前导码。若检测到第一前导码,则中继设备激活数据接收功能,接收第一前导码之后的无线帧。
在本申请实施例中,中继设备可以具备CAD模式。
信道活动检测模式旨在以尽可能高的功耗效率检测无线信道上的LoRa前导码。在CAD模式下,中继设备快速扫描频段,以检测LoRa无线帧的前导码。
步骤502,所述中继设备采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;
步骤503,所述中继设备接收所述基站返回的入网响应帧,并将所述入网响应帧发送至所述终端。
在本申请实施例中,所述中继设备将所述入网响应帧发送至所述终端的步骤包括如下子步骤:
子步骤S1101,所述中继设备在所述终端发送带有第一前导码的入网请求帧之后的第二接收窗口内,将所述入网响应帧发送至所述终端;
子步骤S1102,在发送所述入网响应帧后,所述中继设备进入间歇性休眠状态。
在本申请实施例中,终端可以通过向中继设备发送带有第一前导码的入网请求帧,由中继设备将入网请求帧转发给基站,再由中继设备将基站返回的入网响应帧发送给终 端,完成终端的入网过程。
以下,从中继设备的角度介绍终端入网后的通信流程。
参照图6,示出了本申请的一种终端与基站的通信方法实施例4的步骤流程图,具体可以包括如下步骤:
步骤601,中继设备接收以中继模式入网的终端发送的,带有第一前导码的上行数据帧;
在本申请实施例中,终端具有正常模式和中继模式两种工作模式。终端可以在正常模式或中继模式发起入网流程。
如果终端已经以中继模式入网,则终端的数据上行方式是在上行数据帧前添加第一前导码,然后将带有第一前导码的上行数据帧发送给中继设备。
在本申请实施例中,所述步骤601可以包括如下子步骤:
子步骤S1201,所述中继设备从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
子步骤S1202,若检测到第一前导码,则所述中继设备接收第一前导码之后的上行数据帧。
在本申请实施例中,所述中继设备的唤醒周期小于所述第一前导码的长度。
在本申请实施例中,中继设备可以具备CAD模式。
信道活动检测模式旨在以尽可能高的功耗效率检测无线信道上的LoRa前导码。在CAD模式下,中继设备快速扫描频段,以检测LoRa无线帧的前导码。
在本申请实施例中,中继设备从间歇性休眠状态周期性唤醒,在唤醒时检测是否第一前导码。若检测到第一前导码,则中继设备激活数据接收功能,接收第一前导码之后的无线帧。
步骤602,所述中继设备采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的上行数据帧;所述第二前导码的长度小于所述第一前导码的长度;
中继设备接收到上行数据帧后,采用第二前导码替换第一前导码,并向基站转发带有第二前导码的上行数据帧。
步骤603,所述中继设备接收所述基站返回的下行数据帧,并将所述下行数据帧转发至所述终端。
在本申请实施例中所述步骤603可以包括如下子步骤:
子步骤S1301,所述中继设备在所述终端发送所述带有第一前导码的上行数据帧之 后的第二接收窗口内,向所述终端发送下行数据帧;
子步骤S1302,在发送下行数据帧后,所述中继设备进入间歇性休眠状态。
在本申请实施例中,设定中继设备在终端上行传输之后的第二接收窗口之内向终端下行传输。因此,中继设备在终端发送带有第一前导码的上行数据帧之后的第二接收窗口内,向终端发送下行数据帧。中继设备在发送下行数据帧后,进入间歇性休眠状态,等待下一次唤醒。在本申请实施例中,终端通过中继设备入网后,终端可以通过向中继设备发送带有第一前导码的上行数据帧,由中继设备将上行数据帧转发给基站,再由中继设备将基站返回的下行数据帧发送给终端,完成终端与基站的通信过程。
为了使本领域技术人员能够更好地理解本申请实施例,下面通过一个例子对本申请实施例加以说明:
参照图7所示为本申请实施例中终端与基站的通信流程图。
1、LoRa中继设备作为标准节点向LoRa基站发出入网请求帧。
2、LoRa中继作为标准节点接收LoRa基站返回的入网确定帧,然后进入间歇性休眠状态。
3、LoRa终端以正常模式发送带第二前导码的入网请求帧,但没有接收到入网响应帧,标准入网流程失败。
4、LoRa终端切换到中继模式,并以中继模式发送带第一前导码的入网请求帧。
5、LoRa中继设备被第一前导码激活,接收该入网请求帧;并将第一前导码替换为第二前导码,然后向LoRa基站转发带第一前导码的入网请求帧。
6、LoRa中继设备接收LoRa基站返回的入网响应帧。
7、LoRa中继设备向中继模式的LoRa终端在RX2窗口转发入网确认帧,然后进入间歇性休眠状态。
8、LoRa终端以中继模式发送带第一前导码的上行数据帧。
9、LoRa中继设备被第一前导码激活,接收该上行数据帧,并将第一前导码替换为第二前导码,然后向LoRa基站转发带第一前导码的上行数据帧。
10、LoRa中继设备接收LoRa基站返回的下行数据帧。
11、LoRa中继设备向中继模式的LoRa终端在RX2窗口转发下行数据帧,然后进入间歇性休眠状态,等待下一次被激活。
需要说明的是,对于方法实施例,为了简单描述,故将其都表述为一系列的动作组 合,但是本领域技术人员应该知悉,本申请实施例并不受所描述的动作顺序的限制,因为依据本申请实施例,某些步骤可以采用其他顺序或者同时进行。其次,本领域技术人员也应该知悉,说明书中所描述的实施例均属于优选实施例,所涉及的动作并不一定是本申请实施例所必须的。
参照图8,示出了本申请的一种终端与基站的通信装置实施例1的结构框图,具体可以包括如下模块:
位于所述终端的第一前导码请求帧发送模块801,用于向中继设备发送带有第一前导码的入网请求帧;所述中继设备用于依据所述第一前导码接收所述入网请求帧,并向所述基站发送带第二前导码的所述入网请求帧,并接收所述基站返回的入网响应帧;所述第二前导码的长度小于所述第一前导码的长度;
位于所述终端的入网响应帧接收模块802,用于接收所述中继设备发送的入网响应帧;
在本申请实施例中,所述的装置还可以包括:
位于所述终端的第一前导码数据帧发送模块,用于向所中继设备发送带有所述第一前导码的上行数据帧;所述中继设备还用于依据所述第一前导码接收所述上行数据帧,并向所述基站发送带第二前导码的所述上行数据帧;接收所述基站返回的下行数据帧;
位于所述终端的下行数据帧接收模块,用于接收所述中继设备发送的下行数据帧。
在本申请实施例中,所述第一前导码请求帧发送模块801可以包括:
第一前导码请求帧发送子模块,用于若所述终端在发送带有第二前导码的入网请求帧之后的第一接收窗口和第二接收窗口内,都没有接收到入网响应帧,则所述终端向中继设备发送带有第一前导码的入网请求帧;
或,
第二前导码请求帧发送子模块,用于若所述终端在发送带有第二前导码的入网请求帧之后的第二接收窗口内,接收到入网响应帧,则所述终端向中继设备发送带有第一前导码的入网请求帧。
在本申请实施例中,所述的装置还可以包括:
位于所述终端的第三前导码请求帧发送模块,用于若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口内接收到入网请求帧,则向所述基站发送带有第二前导码的入网请求帧。
在本申请实施例中,所述的装置还可以包括:
位于所述终端的第四前导码请求帧发送模块,用于若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口和第二接收窗口内都没有接收到入网响应帧,则向所述基站发送带有第二前导码的入网请求帧。
在本申请实施例中,所述入网响应帧接收模块802可以包括:
入网响应帧接收子模块,用于在发送所述带有第一前导码的入网请求帧之后的第二接收窗口内,接收所述中继设备发送的入网响应帧。
在本申请实施例中,所述下行数据帧接收模块可以包括:
下行数据帧接收子模块,用于在发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,接收所述中继设备发送的下行数据帧。
参照图9,示出了本申请的一种终端的入网装置实施例1的结构框图,具体可以包括如下模块:
位于所述终端的第二前导码请求帧发送模块901,用于在正常模式发送带有第二前导码的入网请求帧;
位于所述终端的第一模式切换模块902,用于若所述终端在发送所述带有第二前导码的入网请求帧之后的第二接收窗口内,接收到入网响应帧,则从正常模式切换到中继模式;
位于所述终端的第一前导码请求帧发送模块903,用于在中继模式发送带有第一前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;
位于所述终端的第二模式切换模块904,用于若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口内,接收到入网响应帧;或,若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口和第二接收窗口内,都没有接收到入网响应帧;则从中继模式切换到正常模式。
在本申请实施例中,所述的装置还可以包括:
位于所述终端的第一入网响应帧接收模块,用于在发送所述带有第二前导码的入网请求帧之后的第一接收窗口内,接收入网响应帧以正常模式入网。
在本申请实施例中,所述的装置还可以包括:
位于所述终端的第一入网响应帧接收模块,用于在发送所述带有第一前导码的入网请求帧之后的第二接收窗口内,接收入网响应帧以中继模式入网。
参照图10,示出了本申请的一种终端与基站的通信装置实施例2的结构框图,具体可以包括如下模块:
位于所述终端的第二前导码数据帧发送模块1001,用于若所述终端以正常模式入网,则在正常模式向基站发送带有第二前导码的上行数据帧;
位于所述终端的第一下行数据帧接收模块1002,用于接收所述基站返回的下行数据帧;
位于所述终端的第一前导码数据帧发送模块1003,用于若所述终端以中继模式入网,则所述终端在中继模式向中继设备发送带有第一前导码的上行数据帧;所述中继设备用于采用第二前导码替换所述第一前导码,并向基站转发带有所述第二前导码的上行数据帧;所述第二前导码的长度小于所述第一前导码的长度;
位于所述终端的第二下行数据帧接收模块1004,用于接收所述中继设备转发的由所述基站返回的下行数据帧。
在本申请实施例中,所述第一下行数据帧接收模块1002可以包括:
第一下行数据帧接收子模块,用于在发送所述带有第二前导码的上行数据帧之后的第一接收窗口内,接收所述基站返回的下行数据帧。
在本申请实施例中,所述第二下行数据帧接收模块1004可以包括:
第二下行数据帧接收子模块,用于在发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,接收所述中继设备转发的由所述基站返回的下行数据帧。
参照图11,示出了本申请的一种终端与基站的通信装置实施例3的结构框图,具体可以包括如下模块:
位于中继设备的第一前导码请求帧接收模块1101,用于接收所述终端发送的带有第一前导码的入网请求帧;
位于所述中继设备的第一前导码请求帧转发模块1102,用于采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;
位于所述中继设备的入网响应帧转发模块1103,用于接收所述基站返回的入网响应帧,并将所述入网响应帧发送至所述终端。
在本申请实施例中,所述的装置还可以包括:
位于所述中继设备的第一前导码数据帧接收模块,用于接收所述终端发送的带有第一前导码的上行数据帧;
位于所述中继设备的第一前导码数据帧转发模块,用于采用第二前导码替换所述第 一前导码,并向所述基站发送带有所述第二前导码的上行数据帧;
位于所述中继设备的下行数据帧转发模块,用于接收所述基站返回的下行数据帧,并将所述下行数据帧发送至所述终端。
在本申请实施例中,所述第一前导码请求帧接收模块1101可以包括:
第一前导码检测子模块,用于从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
第一前导码请求帧接收子模块,用于若检测到第一前导码,则接收所述第一前导码之后的入网请求帧。
在本申请实施例中,所述入网响应帧转发模块1103可以包括:
入网响应帧转发子模块,用于在所述终端发送带有第一前导码的入网请求帧之后的第二接收窗口内,将所述入网响应帧发送至所述终端;
第一休眠子模块,用于在发送所述入网响应帧后,进入间歇性休眠状态。
在本申请实施例中,所述第一前导码数据帧接收模块可以包括:
第二前导码检测子模块,用于从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
第一前导码数据帧接收子模块,用于若检测到第一前导码,则接收所述第一前导码之后的上行数据帧。
在本申请实施例中,所述下行数据帧转发模块可以包括:
下行数据帧转发子模块,用于在所述终端发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,向所述终端发送下行数据帧;
第二休眠子模块,用于在发送下行数据帧后,进入间歇性休眠状态。
在本申请实施例中,所述中继设备的唤醒周期小于所述第一前导码的长度。
参照图12,示出了本申请的一种终端的入网装置实施例2的结构框图,具体可以包括如下模块:
位于中继设备的第一前导码请求帧接收模块1201,用于接收所述终端在中继模式下发送的带有第一前导码的入网请求帧;
位于所述中继设备的第一前导码请求帧转发模块1202,用于采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;
位于所述中继设备的入网响应帧转发模块1203,用于接收所述基站返回的入网响应 帧,并将所述入网响应帧发送至所述终端。
在本申请实施例中,所述第一前导码请求帧接收模块1201可以包括:
第一前导码检测子模块,用于从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
第一前导码请求帧接收子模块,用于若检测到第一前导码,则所述中继设备接收所述第一前导码之后的入网请求帧。
在本申请实施例中,所述入网响应帧转发模块1203可以包括:
入网响应帧转发子模块,用于在所述终端发送带有第一前导码的入网请求帧之后的第二接收窗口内,将所述入网响应帧发送至所述终端;
休眠子模块,用于在发送所述入网响应帧后,进入间歇性休眠状态。
在本申请实施例中,所述中继设备的唤醒周期小于所述第一前导码的长度。
参照图13,示出了本申请的一种终端与基站的通信装置实施例4的结构框图,具体可以包括如下模块:
位于中继设备的第一前导码数据帧接收模块1301,用于接收以中继模式入网的终端发送的,带有第一前导码的上行数据帧;
位于所述中继设备的第一前导码数据帧转发模块1302,用于采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的上行数据帧;所述第二前导码的长度小于所述第一前导码的长度;
位于所述中继设备的下行数据帧转发模块1303,用于接收所述基站返回的下行数据帧,并将所述下行数据帧转发至所述终端。
在本申请实施例中,所述第一前导码数据帧接收模块1301可以包括:
第一前导码检测子模块,用于从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;
第一前导码数据帧接收子模块,用于若检测到第一前导码,则所述中继设备接收第一前导码之后的上行数据帧。
在本申请实施例中,所述下行数据帧转发模块1303可以包括:
下行数据帧转发子模块,用于在所述终端发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,向所述终端发送下行数据帧;
休眠子模块,用于在发送下行数据帧后,进入间歇性休眠状态。
在本申请实施例中,所述中继设备的唤醒周期小于所述第一前导码的长度。
对于装置实施例而言,由于其与方法实施例基本相似,所以描述的比较简单,相关之处参见方法实施例的部分说明即可。
本申请实施例还提供了一种装置,包括:
一个或多个处理器;和
其上存储有指令的一个或多个机器可读介质,当由所述一个或多个处理器执行时,使得所述装置执行本申请实施例所述的方法。
本申请实施例还提供了一个或多个机器可读介质,其上存储有指令,当由一个或多个处理器执行时,使得装置执行本申请实施例所述的方法。
本说明书中的各个实施例均采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似的部分互相参见即可。
本领域内的技术人员应明白,本申请实施例的实施例可提供为方法、装置、或计算机程序产品。因此,本申请实施例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,本申请实施例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、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请实施例是参照根据本申请实施例的方法、终端设备(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终端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终端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终端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终端设备上,使得在计算机或其他可编程终端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终端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。
尽管已描述了本申请实施例的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例做出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本申请实施例范围的所有变更和修改。
最后,还需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者终端设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者终端设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者终端设备中还存在另外的相同要素。
以上对本申请所提供的一种终端与基站的通信方法、一种终端与基站的通信装置、一种终端的入网方法和一种终端的入网装置,进行了详细介绍,本文中应用了具体个例对本申请的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本申请的方法及其核心思想;同时,对于本领域的一般技术人员,依据本申请的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本申请的限制。
Claims (58)
- 一种终端与基站的通信方法,其特征在于,包括:所述终端向中继设备发送带有第一前导码的入网请求帧;所述中继设备用于依据所述第一前导码接收所述入网请求帧,并向所述基站发送带第二前导码的所述入网请求帧,并接收所述基站返回的入网响应帧;所述第二前导码的长度小于所述第一前导码的长度;所述终端接收所述中继设备发送的入网响应帧。
- 根据权利要求1所述的方法,其特征在于,还包括:所述终端向所中继设备发送带有所述第一前导码的上行数据帧;所述中继设备还用于依据所述第一前导码接收所述上行数据帧,并向所述基站发送带第二前导码的所述上行数据帧;接收所述基站返回的下行数据帧;所述终端接收所述中继设备发送的下行数据帧。
- 根据权利要求1所述的方法,其特征在于,所述终端向中继设备发送带有第一前导码的入网请求帧的步骤包括:若所述终端在发送带有第二前导码的入网请求帧之后的第一接收窗口和第二接收窗口内,都没有接收到入网响应帧,则所述终端向中继设备发送带有第一前导码的入网请求帧;或,若所述终端在发送带有第二前导码的入网请求帧之后的第二接收窗口内,接收到入网响应帧,则所述终端向中继设备发送带有第一前导码的入网请求帧。
- 根据权利要求1所述的方法,其特征在于,还包括:若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口内接收到入网请求帧,则所述终端向所述基站发送带有第二前导码的入网请求帧。
- 根据权利要求4所述的方法,其特征在于,还包括:若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口和第二接收窗口内都没有接收到入网响应帧,则所述终端向所述基站发送带有第二前导码的入网请求帧。
- 根据权利要求1所述的方法,其特征在于,所述终端接收所述中继设备发送的入网响应帧的步骤包括:所述终端在发送所述带有第一前导码的入网请求帧之后的第二接收窗口内,接收所 述中继设备发送的入网响应帧。
- 根据权利要求2所述的方法,其特征在于,所述终端接收所述中继设备发送的下行数据帧的步骤包括:所述终端在发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,接收所述中继设备发送的下行数据帧。
- 一种终端的入网方法,其特征在于,包括:所述终端在正常模式发送带有第二前导码的入网请求帧;若所述终端在发送所述带有第二前导码的入网请求帧之后的第二接收窗口内,接收到入网响应帧,则所述终端从正常模式切换到中继模式;所述终端在中继模式发送带有第一前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口内,接收到入网响应帧;或,若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口和第二接收窗口内,都没有接收到入网响应帧;则所述终端从中继模式切换到正常模式。
- 根据权利要求8所述的方法,其特征在于,还包括:所述终端在发送所述带有第二前导码的入网请求帧之后的第一接收窗口内,接收入网响应帧以正常模式入网。
- 根据权利要求8所述的方法,其特征在于,还包括:所述终端在发送所述带有第一前导码的入网请求帧之后的第二接收窗口内,接收入网响应帧以中继模式入网。
- 一种终端与基站的通信方法,其特征在于,包括:若所述终端以正常模式入网,则所述终端在正常模式向基站发送带有第二前导码的上行数据帧;所述终端接收所述基站返回的下行数据帧;若所述终端以中继模式入网,则所述终端在中继模式向中继设备发送带有第一前导码的上行数据帧;所述中继设备用于采用第二前导码替换所述第一前导码,并向基站转发带有所述第二前导码的上行数据帧;所述第二前导码的长度小于所述第一前导码的长度;所述终端接收所述中继设备转发的由所述基站返回的下行数据帧。
- 根据权利要求11所述的方法,其特征在于,所述终端接收所述基站返回的下行数据帧的步骤包括:所述终端在发送所述带有第二前导码的上行数据帧之后的第一接收窗口内,接收所述基站返回的下行数据帧。
- 根据权利要求11所述的方法,其特征在于,所述终端接收所述中继设备转发的由所述基站返回的下行数据帧的步骤包括:所述终端在发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,接收所述中继设备转发的由所述基站返回的下行数据帧。
- 一种终端与基站的通信方法,其特征在于,包括:中继设备接收所述终端发送的带有第一前导码的入网请求帧;所述中继设备采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;所述中继设备接收所述基站返回的入网响应帧,并将所述入网响应帧发送至所述终端。
- 根据权利要求14所述的方法,其特征在于,还包括:所述中继设备接收所述终端发送的带有第一前导码的上行数据帧;所述中继设备采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的上行数据帧;所述中继设备接收所述基站返回的下行数据帧,并将所述下行数据帧发送至所述终端。
- 根据权利要求14所述的方法,其特征在于,所述中继设备接收终端发送的带有第一前导码的入网请求帧的步骤包括:所述中继设备从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;若检测到第一前导码,则所述中继设备接收所述第一前导码之后的入网请求帧。
- 根据权利要求16所述的方法,其特征在于,所述中继设备将所述入网响应帧发送至所述终端的步骤包括:所述中继设备在所述终端发送带有第一前导码的入网请求帧之后的第二接收窗口内,将所述入网响应帧发送至所述终端;在发送所述入网响应帧后,所述中继设备进入间歇性休眠状态。
- 根据权利要求15所述的方法,其特征在于,所述中继设备接收所述终端发送的 带有第一前导码的上行数据帧的步骤包括:所述中继设备从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;若检测到第一前导码,则所述中继设备接收所述第一前导码之后的上行数据帧。
- 根据权利要求18所述的方法,其特征在于,所述中继设备将所述下行数据帧发送至所述终端的步骤包括:所述中继设备在所述终端发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,向所述终端发送下行数据帧;在发送下行数据帧后,所述中继设备进入间歇性休眠状态。
- 根据权利要求16所述的方法,其特征在于,所述中继设备的唤醒周期小于所述第一前导码的长度。
- 一种终端的入网方法,其特征在于,包括:中继设备接收终端在中继模式下发送的带有第一前导码的入网请求帧;所述中继设备采用第二前导码替换所述第一前导码,并向基站发送带有所述第二前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;所述中继设备接收所述基站返回的入网响应帧,并将所述入网响应帧发送至所述终端。
- 根据权利要求21所述的方法,其特征在于,所述中继设备接收所述终端在中继模式下发送的带有第一前导码的入网请求帧的步骤包括:所述中继设备从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;若检测到第一前导码,则所述中继设备接收所述第一前导码之后的入网请求帧。
- 根据权利要求21所述的方法,其特征在于,所述中继设备将所述入网响应帧发送至所述终端的步骤包括:所述中继设备在所述终端发送带有第一前导码的入网请求帧之后的第二接收窗口内,将所述入网响应帧发送至所述终端;在发送所述入网响应帧后,所述中继设备进入间歇性休眠状态。
- 根据权利要求22所述的方法,其特征在于,所述中继设备的唤醒周期小于所述第一前导码的长度。
- 一种终端与基站的通信方法,其特征在于,包括:中继设备接收以中继模式入网的终端发送的,带有第一前导码的上行数据帧;所述中继设备采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的上行数据帧;所述第二前导码的长度小于所述第一前导码的长度;所述中继设备接收所述基站返回的下行数据帧,并将所述下行数据帧转发至所述终端。
- 根据权利要求25所述的方法,其特征在于,所述中继设备接收以中继模式入网的终端发送的,带有第一前导码的上行数据帧的包括:所述中继设备从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;若检测到第一前导码,则所述中继设备接收第一前导码之后的上行数据帧。
- 根据权利要求26所述的方法,其特征在于,所述中继设备将所述下行数据帧转发至所述终端的步骤包括:所述中继设备在所述终端发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,向所述终端发送下行数据帧;在发送下行数据帧后,所述中继设备进入间歇性休眠状态。
- 根据权利要求26所述的方法,其特征在于,所述中继设备的唤醒周期小于所述第一前导码的长度。
- 一种终端与基站的通信装置,其特征在于,包括:位于所述终端的第一前导码请求帧发送模块,用于向中继设备发送带有第一前导码的入网请求帧;所述中继设备用于依据所述第一前导码接收所述入网请求帧,并向所述基站发送带第二前导码的所述入网请求帧,并接收所述基站返回的入网响应帧;所述第二前导码的长度小于所述第一前导码的长度;位于所述终端的入网响应帧接收模块,用于接收所述中继设备发送的入网响应帧。
- 根据权利要求29所述的装置,其特征在于,还包括:位于所述终端的第一前导码数据帧发送模块,用于向所中继设备发送带有所述第一前导码的上行数据帧;所述中继设备还用于依据所述第一前导码接收所述上行数据帧,并向所述基站发送带第二前导码的所述上行数据帧;接收所述基站返回的下行数据帧;位于所述终端的下行数据帧接收模块,用于接收所述中继设备发送的下行数据帧。
- 根据权利要求29所述的装置,其特征在于,所述第一前导码请求帧发送模块包括:第一前导码请求帧发送子模块,用于若所述终端在发送带有第二前导码的入网请求帧之后的第一接收窗口和第二接收窗口内,都没有接收到入网响应帧,则所述终端向中 继设备发送带有第一前导码的入网请求帧;或,第二前导码请求帧发送子模块,用于若所述终端在发送带有第二前导码的入网请求帧之后的第二接收窗口内,接收到入网响应帧,则所述终端向中继设备发送带有第一前导码的入网请求帧。
- 根据权利要求29所述的装置,其特征在于,还包括:位于所述终端的第三前导码请求帧发送模块,用于若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口内接收到入网请求帧,则向所述基站发送带有第二前导码的入网请求帧。
- 根据权利要求32所述的装置,其特征在于,还包括:位于所述终端的第四前导码请求帧发送模块,用于若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口和第二接收窗口内都没有接收到入网响应帧,则向所述基站发送带有第二前导码的入网请求帧。
- 根据权利要求29所述的装置,其特征在于,所述入网响应帧接收模块包括:入网响应帧接收子模块,用于在发送所述带有第一前导码的入网请求帧之后的第二接收窗口内,接收所述中继设备发送的入网响应帧。
- 根据权利要求30所述的装置,其特征在于,所述下行数据帧接收模块包括:下行数据帧接收子模块,用于在发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,接收所述中继设备发送的下行数据帧。
- 一种终端的入网装置,其特征在于,包括:位于所述终端的第二前导码请求帧发送模块,用于在正常模式发送带有第二前导码的入网请求帧;位于所述终端的第一模式切换模块,用于若所述终端在发送所述带有第二前导码的入网请求帧之后的第二接收窗口内,接收到入网响应帧,则从正常模式切换到中继模式;位于所述终端的第一前导码请求帧发送模块,用于在中继模式发送带有第一前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;位于所述终端的第二模式切换模块,用于若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口内,接收到入网响应帧;或,若所述终端在发送所述带有第一前导码的入网请求帧之后的第一接收窗口和第二接收窗口内,都没有接收到入网响应帧;则从中继模式切换到正常模式。
- 根据权利要求36所述的装置,其特征在于,还包括:位于所述终端的第一入网响应帧接收模块,用于在发送所述带有第二前导码的入网请求帧之后的第一接收窗口内,接收入网响应帧以正常模式入网。
- 根据权利要求36所述的装置,其特征在于,还包括:位于所述终端的第一入网响应帧接收模块,用于在发送所述带有第一前导码的入网请求帧之后的第二接收窗口内,接收入网响应帧以中继模式入网。
- 一种终端与基站的通信装置,其特征在于,包括:位于所述终端的第二前导码数据帧发送模块,用于若所述终端以正常模式入网,则在正常模式向基站发送带有第二前导码的上行数据帧;位于所述终端的第一下行数据帧接收模块,用于接收所述基站返回的下行数据帧;位于所述终端的第一前导码数据帧发送模块,用于若所述终端以中继模式入网,则所述终端在中继模式向中继设备发送带有第一前导码的上行数据帧;所述中继设备用于采用第二前导码替换所述第一前导码,并向基站转发带有所述第二前导码的上行数据帧;所述第二前导码的长度小于所述第一前导码的长度;位于所述终端的第二下行数据帧接收模块,用于接收所述中继设备转发的由所述基站返回的下行数据帧。
- 根据权利要求39所述的装置,其特征在于,所述第一下行数据帧接收模块包括:第一下行数据帧接收子模块,用于在发送所述带有第二前导码的上行数据帧之后的第一接收窗口内,接收所述基站返回的下行数据帧。
- 根据权利要求39所述的装置,其特征在于,所述第二下行数据帧接收模块包括:第二下行数据帧接收子模块,用于在发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,接收所述中继设备转发的由所述基站返回的下行数据帧。
- 一种终端与基站的通信装置,其特征在于,包括:位于中继设备的第一前导码请求帧接收模块,用于接收所述终端发送的带有第一前导码的入网请求帧;位于所述中继设备的第一前导码请求帧转发模块,用于采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;位于所述中继设备的入网响应帧转发模块,用于接收所述基站返回的入网响应帧,并将所述入网响应帧发送至所述终端。
- 根据权利要求42所述的装置,其特征在于,还包括:位于所述中继设备的第一前导码数据帧接收模块,用于接收所述终端发送的带有第一前导码的上行数据帧;位于所述中继设备的第一前导码数据帧转发模块,用于采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的上行数据帧;位于所述中继设备的下行数据帧转发模块,用于接收所述基站返回的下行数据帧,并将所述下行数据帧发送至所述终端。
- 根据权利要求42所述的装置,其特征在于,所述第一前导码请求帧接收模块包括:第一前导码检测子模块,用于从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;第一前导码请求帧接收子模块,用于若检测到第一前导码,则接收所述第一前导码之后的入网请求帧。
- 根据权利要求44所述的装置,其特征在于,所述入网响应帧转发模块包括:入网响应帧转发子模块,用于在所述终端发送带有第一前导码的入网请求帧之后的第二接收窗口内,将所述入网响应帧发送至所述终端;第一休眠子模块,用于在发送所述入网响应帧后,进入间歇性休眠状态。
- 根据权利要求43所述的装置,其特征在于,所述第一前导码数据帧接收模块包括:第二前导码检测子模块,用于从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;第一前导码数据帧接收子模块,用于若检测到第一前导码,则接收所述第一前导码之后的上行数据帧。
- 根据权利要求46所述的装置,其特征在于,所述下行数据帧转发模块包括:下行数据帧转发子模块,用于在所述终端发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,向所述终端发送下行数据帧;第二休眠子模块,用于在发送下行数据帧后,进入间歇性休眠状态。
- 根据权利要求44所述的装置,其特征在于,所述中继设备的唤醒周期小于所述第一前导码的长度。
- 一种终端的入网装置,其特征在于,包括:位于中继设备的第一前导码请求帧接收模块,用于接收终端在中继模式下发送的带有第一前导码的入网请求帧;位于所述中继设备的第一前导码请求帧转发模块,用于采用第二前导码替换所述第一前导码,并向基站发送带有所述第二前导码的入网请求帧;所述第二前导码的长度小于所述第一前导码的长度;位于所述中继设备的入网响应帧转发模块,用于接收所述基站返回的入网响应帧,并将所述入网响应帧发送至所述终端。
- 根据权利要求49所述的装置,其特征在于,所述第一前导码请求帧接收模块包括:第一前导码检测子模块,用于从间歇性休眠状态周期性唤醒,在唤醒时检测是否有第一前导码;第一前导码请求帧接收子模块,用于若检测到第一前导码,则所述中继设备接收所述第一前导码之后的入网请求帧。
- 根据权利要求49所述的装置,其特征在于,所述入网响应帧转发模块包括:入网响应帧转发子模块,用于在所述终端发送带有第一前导码的入网请求帧之后的第二接收窗口内,将所述入网响应帧发送至所述终端;休眠子模块,用于在发送所述入网响应帧后,进入间歇性休眠状态。
- 根据权利要求50所述的装置,其特征在于,所述中继设备的唤醒周期小于所述第一前导码的长度。
- 一种终端与基站的通信装置,其特征在于,包括:位于中继设备的第一前导码数据帧接收模块,用于接收以中继模式入网的终端发送的,带有第一前导码的上行数据帧;位于所述中继设备的第一前导码数据帧转发模块,用于采用第二前导码替换所述第一前导码,并向所述基站发送带有所述第二前导码的上行数据帧;所述第二前导码的长度小于所述第一前导码的长度;位于所述中继设备的下行数据帧转发模块,用于接收所述基站返回的下行数据帧,并将所述下行数据帧转发至所述终端。
- 根据权利要求53所述的装置,其特征在于,所述第一前导码数据帧接收模块包括:第一前导码检测子模块,用于从间歇性休眠状态周期性唤醒,在唤醒时检测是否有 第一前导码;第一前导码数据帧接收子模块,用于若检测到第一前导码,则所述中继设备接收第一前导码之后的上行数据帧。
- 根据权利要求54所述的装置,其特征在于,所述下行数据帧转发模块包括:下行数据帧转发子模块,用于在所述终端发送所述带有第一前导码的上行数据帧之后的第二接收窗口内,向所述终端发送下行数据帧;休眠子模块,用于在发送下行数据帧后,进入间歇性休眠状态。
- 根据权利要求54所述的装置,其特征在于,所述中继设备的唤醒周期小于所述第一前导码的长度。
- 一种装置,其特征在于,包括:一个或多个处理器;和其上存储有指令的一个或多个机器可读介质,当由所述一个或多个处理器执行时,使得所述装置执行如权利要求1-7或8-10或11-13或14-20或21-24或25-28所述的一个或多个的方法。
- 一个或多个机器可读介质,其上存储有指令,当由一个或多个处理器执行时,使得装置执行如权利要求1-7或8-10或11-13或14-20或21-24或25-28所述的一个或多个的方法。
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WO2020015580A1 (zh) | 2020-01-23 |
CN109842919A (zh) | 2019-06-04 |
US20210143896A1 (en) | 2021-05-13 |
CN109842919B (zh) | 2021-11-23 |
US11102704B2 (en) | 2021-08-24 |
US20200245227A1 (en) | 2020-07-30 |
TW202008845A (zh) | 2020-02-16 |
TW201927061A (zh) | 2019-07-01 |
US11711748B2 (en) | 2023-07-25 |
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