CN111586800B - UNB relay system and data interaction method - Google Patents

UNB relay system and data interaction method Download PDF

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Publication number
CN111586800B
CN111586800B CN202010357000.2A CN202010357000A CN111586800B CN 111586800 B CN111586800 B CN 111586800B CN 202010357000 A CN202010357000 A CN 202010357000A CN 111586800 B CN111586800 B CN 111586800B
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terminal
data
base station
side mcu
mcu
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CN111586800A (en
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马凤鸣
李玮棠
刘宇
陈杰文
刘毅
韦聿解
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Guangzhou Jixiang Technology Co Ltd
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Guangzhou Jixiang Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15507—Relay station based processing for cell extension or control of coverage area
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations

Abstract

The embodiment of the invention discloses a UNB relay system and a data interaction method, the system comprises a base station, a terminal and a relay, wherein the base station is connected with the relay for data communication, the relay is connected with the terminal for data communication, and the relay is used for realizing the attachment, data report and configuration response of the terminal, wherein the relay comprises a terminal side MCU and a base station side MCU, the terminal side MCU is used for periodically sending broadcast messages and on-demand messages to the terminal, receiving the response of the terminal and confirming, the base station side MCU is used for simulating the terminal to carry out data communication on the base station, and the terminal side MCU and the base station side MCU carry out message interaction. The scheme improves the data transmission efficiency and increases the coverage area of data transmission.

Description

UNB relay system and data interaction method
Technical Field
The embodiment of the application relates to the technical field of Internet of things, in particular to a UNB relay system.
Background
For a long-distance or obstacle environment, the wireless signal is transmitted from one relay point to the next relay point by utilizing the connection function between wireless bridges, so that the signal enhancement is realized, a new wireless coverage area is formed, and the aim of extending the coverage area of a wireless network is finally achieved. When the wireless network bridge is applied to wireless monitoring, there are three networking and transmission modes, namely point-to-point transmission, point-to-multipoint transmission and relay transmission. However, in practical applications, the relay mode is still relatively less, which will increase the cost and cause some signal loss. However, sometimes relays have to be used, for example, the field environment is not ideal, and there is always or there that blocks the transmission line of the wireless bridge, such as a building, a tree, etc., and at this time, only relay transmission can be adopted if no other line is needed to be changed. In the relay mode, a wireless signal is transmitted from one relay point to the next relay point by using the connection function between wireless bridges, so that the signal is enhanced, a new wireless coverage area is formed, and the purpose of extending the coverage area of a wireless network is finally achieved.
Two relay node implementation schemes are generally adopted, namely physical layer relay and MAC layer relay, and the physical layer relay only carries out transceiving relay on radio frequency signals and cannot carry out analysis. The antenna has the advantages that the time delay is short, but the antenna mainly depends on the gain capability of a high-gain antenna, the gain is limited, the directivity is strong, and the increase of the coverage is small because the gain can be only increased by 10-20 dB. Because the relay does not analyze the sent message, the access terminal equipment cannot be identified and managed, and the control mechanism of the terminal is poor. The MAC layer relay receives the radio frequency signal through one antenna, receives the message and then retransmits the message through the other radio frequency antenna, so that the signal gain is greatly improved and can be improved by over 100dB, the coverage area is greatly increased, but the defect is that the time delay is large.
Disclosure of Invention
The embodiment of the invention provides a UNB relay system and a data interaction method, which improve the data transmission efficiency and increase the coverage area of data transmission.
In a first aspect, an embodiment of the present invention provides an un b relay system, where the system includes: the base station is connected with the relay for data communication, the relay is connected with the terminal for data communication, and the relay is used for realizing the attachment, data reporting and response configuration of the terminal, wherein the relay comprises a terminal side MCU and a base station side MCU, the terminal side MCU is used for periodically sending broadcast messages and on-demand messages to the terminal, receiving and confirming the response of the terminal, the base station side MCU is used for simulating the terminal to carry out data communication in the base station, and the terminal side MCU and the base station side MCU carry out message interaction.
Optionally, the relay includes a terminal registration module, configured to implement registration and attachment of the terminal; the terminal data reporting module is used for realizing the data reporting of the terminal; and the terminal configuration response module is used for realizing the configuration response of the terminal.
Optionally, the terminal registration module is specifically configured to control:
a terminal side MCU periodically transmits a broadcast frame to the terminal so that the terminal transmits an attachment response frame when detecting that no registration exists;
the MCU at the terminal side receives the attachment response frame, searches whether the terminal is in a registration list or not through keywords in the attachment response frame, if so, sends first reply information of the attachment response frame to the terminal, if not, inquires whether the registration list can add new equipment or not, if not, sends registration refusing information to the terminal, and if so, sends second reply information to the terminal and informs the MCU at the base station side to register the terminal;
the base station side MCU executes the registration process of the base station to realize the registration of the terminal and informs the terminal side MCU;
and the MCU at the terminal side adds the successfully registered terminal to the on-demand queue.
Optionally, the terminal data reporting module is specifically configured to control:
the terminal side MCU polls the terminals in a registration list and sends data on demand frames to the terminals according to the queue sequence period in the registration list so as to enable the terminals to send reported data;
the terminal side MCU receives the reported data sent by the terminal, analyzes and encapsulates the reported data, updates the reported data into a cache list, and sends reported response information to the terminal in the next cycle;
the terminal side MCU initiates an interrupt notification and sends the reported data to the base station side MCU, the base station side MCU receives the reported data and then packages the reported data to obtain common reported data, and the terminal side MCU waits for the on-demand notification of the base station;
and the base station side MCU receives the on-demand notice of the base station, releases the associated data in the cache list and sends a report reply message to the base station.
Optionally, the terminal configuration response module is specifically configured to control:
the base station side MCU receives a configuration on-demand notice of the base station, wherein the configuration on-demand notice comprises configuration item information, and the configuration item information is recorded in a data segment;
the base station side MCU analyzes the configuration on-demand notice and sends a return message to the base station;
the base station side MCU intercepts the content of the data segment, caches the content in an on-demand data queue, and sends the content to a terminal side MCU through a serial port;
the MCU at the terminal side updates the on-demand message queue after updating data according to the content of the data segment, sends the updated data to the terminal according to the on-demand period, and releases the associated data in the on-demand message queue after receiving the response of the terminal
In a second aspect, an embodiment of the present invention provides a method for interacting un b relay data, where a system for executing the method includes a base station, a terminal, and a relay, where the base station is connected to the relay for data communication, the relay is connected to the terminal for data communication, and is used to implement attachment of the terminal, the relay includes a terminal-side MCU and a base-side MCU, the terminal-side MCU is used to periodically send broadcast messages and on-demand messages to the terminal, receive a response from the terminal and confirm the response, the base-side MCU is used to simulate the terminal to perform data communication with the base station, and the terminal-side MCU and the base-side MCU perform message interaction, and the method includes:
a terminal side MCU periodically transmits a broadcast frame to the terminal so that the terminal transmits an attachment response frame when detecting that no registration exists;
the MCU at the terminal side receives the attachment response frame, searches whether the terminal is in a registration list or not through keywords in the attachment response frame, if so, sends first reply information of the attachment response frame to the terminal, if not, inquires whether the registration list can add new equipment or not, if not, sends registration refusing information to the terminal, and if so, sends second reply information to the terminal and informs the MCU at the base station side to register the terminal;
the base station side MCU executes the registration process of the base station to realize the registration of the terminal and informs the terminal side MCU;
and the MCU at the terminal side adds the successfully registered terminal to the on-demand queue.
In a third aspect, an embodiment of the present invention further provides a method for interacting un b relay data, where a system for executing the method includes a base station, a terminal, and a relay, where the base station is connected to the relay for data communication, the relay is connected to the terminal for data communication, and is used to implement data reporting of the terminal, the relay includes a terminal-side MCU and a base-side MCU, the terminal-side MCU is used to periodically send broadcast messages and on-demand messages to the terminal, receive a response from the terminal and confirm the response, the base-side MCU is used to simulate the terminal to perform data communication with the base station, and the terminal-side MCU and the base-side MCU perform message interaction, and the method includes:
the terminal side MCU polls the terminals in a registration list and sends data on demand frames to the terminals according to the queue sequence period in the registration list so as to enable the terminals to send reported data;
the terminal side MCU receives the reported data sent by the terminal, analyzes and encapsulates the reported data, updates the reported data into a cache list, and sends reported response information to the terminal in the next cycle;
the terminal side MCU initiates an interrupt notification and sends the reported data to the base station side MCU, the base station side MCU receives the reported data and then packages the reported data to obtain common reported data, and the terminal side MCU waits for the on-demand notification of the base station;
and the base station side MCU receives the on-demand notice of the base station, releases the associated data in the cache list and sends a report reply message to the base station.
Optionally, the base station side MCU receives the report data and then encapsulates the report data to obtain common report data, including:
the base station side MCU receives the reported data;
establishing a mapping node of the equipment address and the data for association and storing the mapping node to a data buffer pool;
and after receiving the request or broadcast of the base station, encapsulating the reported data to obtain common reported data.
In a third aspect, an embodiment of the present invention further provides a method for interacting un b relay data, where a system for executing the method includes a base station, a terminal, and a relay, where the base station is connected to the relay for data communication, the relay is connected to the terminal for data communication, and is used to implement configuration response of the terminal, the relay includes a terminal-side MCU and a base-side MCU, the terminal-side MCU is used to periodically send broadcast messages and on-demand messages to the terminal, receive and confirm the response of the terminal, the base-side MCU is used to simulate the terminal to perform data communication with the base station, and the terminal-side MCU and the base-side MCU perform message interaction, and the method includes:
the base station side MCU receives a configuration on-demand notice of the base station, wherein the configuration on-demand notice comprises configuration item information, and the configuration item information is recorded in a data segment;
the base station side MCU analyzes the configuration on-demand notice and sends a return message to the base station;
the base station side MCU intercepts the content of the data segment, caches the content in an on-demand data queue, and sends the content to a terminal side MCU through a serial port;
and after the terminal side MCU updates data according to the content of the data segment, the on-demand message queue is updated, the updated data is sent to the terminal according to an on-demand period, and after the response of the terminal is received, the associated data in the on-demand message queue is released.
Optionally, before the MCU on the base station side receives the configuration on-demand notification from the base station, the method further includes:
after receiving the data message sent by the base station, the base station MCU judges the type of the data message, if the type of the data message is a broadcast message type, the base station MCU inquires a current cached terminal list, searches unregistered terminals, encapsulates the data message and then sends the data message; and if the type of the message is the type of the on-demand message, inquiring the uplink list cache, and if the uplink data of the corresponding terminal exists, packaging the data message and then transmitting the data message.
In the embodiment of the invention, the system comprises a base station, a terminal and a relay, wherein the base station is connected with the relay for data communication, the relay is connected with the terminal for data communication, and the relay is used for realizing the attachment, data reporting and response configuration of the terminal, wherein the relay comprises a terminal side MCU and a base station side MCU, the terminal side MCU is used for periodically sending broadcast messages and on-demand messages to the terminal, receiving the response of the terminal and confirming, the base station side MCU is used for simulating the terminal to carry out data communication on the base station, and the terminal side MCU and the base station side MCU carry out message interaction, so that the data transmission efficiency is improved, and the coverage area of data transmission is increased.
Drawings
Fig. 1 is a schematic diagram of an architecture of an ub relay system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an ub relay hardware structure according to an embodiment of the present invention;
fig. 3 is a schematic diagram of downlink data unpacking and related algorithms in an ub relay system according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an uplink data packet and a related algorithm in an ub relay system according to an embodiment of the present invention;
fig. 5 is a flowchart of an interaction method of the ub relay data according to an embodiment of the present invention;
fig. 6 is a timing diagram of terminal attachment for interaction of the un b relay data according to an embodiment of the present invention;
fig. 7 is a flowchart of another method for interacting the UNB relay data according to an embodiment of the present invention;
fig. 8 is a timing diagram of terminal data reporting for interaction of the un b relay data according to the embodiment of the present invention;
fig. 9 is a flowchart of another method for interacting the UNB relay data according to an embodiment of the present invention;
fig. 10 is a sequence diagram of a terminal configuration response of the interaction of the un b relay data according to the embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad invention. It should be further noted that, for convenience of description, only some structures, not all structures, relating to the embodiments of the present invention are shown in the drawings.
Fig. 1 is a schematic diagram of an architecture of an un b relay system according to an embodiment of the present invention. As shown in the figure, the base station 1, the terminal 2 and the relay 3 are connected to perform data communication, the relay 3 is connected to perform data communication with the terminal 2, and the relay is used for achieving attachment, data reporting and configuration response of the terminal 2, wherein the relay 3 includes a terminal side MCU31 and a base station side MCU32, the terminal side MCU31 is used for periodically sending broadcast messages and on-demand messages to the terminal 2, receiving and confirming the response of the terminal 2, the base station side MCU32 is used for simulating the terminal to perform data communication with the base station, and the terminal side MCU31 and the base station side MCU32 perform message interaction.
Fig. 2 is a schematic diagram of an ub relay hardware structure according to an embodiment of the present invention. As shown in fig. 2, the EMCU (i.e., the terminal-side MCU) and the RMCU (i.e., the base station-side MCU) are connected by USART transmission, the EMCU sends an interrupt signal to the RMCU through pin 10, and the RMCU sends an interrupt signal to the EMCU through pin 13. The EMCU is connected with a CC120 module through an SPI interface, and an EMCU simulates a base station to send broadcast messages and on-demand messages to the terminal and receive a registration request frame and a common data frame of the terminal. The RMCU is connected with a CC1120 through a serial port and used for receiving a downlink data frame of a base station and simultaneously sending an uplink data frame to the base station, two MCUs are connected and communicated through an SPI (serial peripheral interface) for ensuring higher communication speed, data messages are interacted, and meanwhile, the MCUs are provided with data to be sent to the other side for mutual notification, and the two MCUs are connected through two interrupt pins.
The EMCU in the relay system simulates the function of a proxy base station, periodically sends broadcast messages and on-demand messages to UE (terminal), and after receiving a response message of the UE, the EMCU simulates the base station and confirms the UE; and the EMCU and the RMCU exchange messages between the base station and the UE. The RMCU simulates the function of a common terminal, but the difference is that the RMCU simulates the function of a UE agent, and the agent UE interacts with a base station. The data interaction flow mainly includes an attachment flow of the terminal, a data reporting flow of the terminal, a configuration response flow of the terminal, a relay registration attachment flow and a relay configuration response flow, and the following description focuses on the attachment flow of the terminal, the data reporting flow of the terminal and the configuration response flow of the terminal.
Specifically, the RMCU function is described in detail as follows:
the RMCU is used as a proxy of the down-hanging terminal to communicate with the base station, and the RMCU is also a common terminal to complete registration, attachment and receiving configuration management of the RMCU and the base station. The RMCU needs to receive an AT command issued by a user, where the AT command relates to information such as uplink and downlink frequency points, spreading spectrum, and the like exchanged between the EMCU and the base station, and sends the information relating to the EMCU, thereby ensuring that the EMCU can perform correct configuration. The processing unit included in the RMCU as a generic terminal is not described in detail in this patent, and this embodiment only describes a specific processing unit included in the RMCU as a proxy. The method specifically comprises the following steps:
the common terminal function processing unit: the RMCU is first used as a common terminal, and needs to have all basic functions of the common terminal, and the design of the functions is consistent with that of the common terminal and is not repeated.
EMCU configuration unit: in the configuration of receiving the user AT command, a configuration part related to the EMCU needs the RMCU to analyze and then send the configuration part to the EMCU through the SPI. The EMCU configuration unit processes the configuration data after receiving and analyzing the AT command, triggers configuration and sends the configuration data, the configured content comprises uplink and downlink frequency points, spread spectrum codes, spread spectrum factors and error correction code rates, and the configuration unit realizes the configuration unit according to the configuration process of the current terminal.
And the data interaction processing unit with the EMCU: the data interaction between the RMCU and the EMCU informs the other party of receiving data through interruption, and after the data are received and sent, data communication is carried out through a serial port. When the RMCU or the EMCU is in a busy state, actively pulling down the terminal pin indicates that the busy state does not receive data, and if the opposite end detects that the pin is in the busy state, the opposite end does not send data. And sending data until the pin state is changed into the Idle state, and receiving the data by the opposite terminal through interrupt triggering.
The RMCU interacts with the EMCU to describe: the data interaction between the RMCU and the EMCU comprises configuration data and communication data, and the interaction data format between the two MCUs needs to be defined in order to distinguish the two data. Data interaction between an RMCU and an EMCU includes two types: configuring a terminal by an application terminal and a base station; configuration requirements of the RMCU for the EMCU. The interaction between the RMCU and the EMCU is executed through AT instructions, wherein the configuration and data sent to the terminal are carried out through AT + UNBSEND, and the configuration of the EMCU is defined according to the actual requirements and the requirements.
Data interaction content definition: the method comprises the steps that an uplink attachment request is sent to an EMCU, and after the EMCU confirms with a terminal, the EMCU informs the RMCU of terminal information needing proxy attachment through a message; uplink burst message, burst data message sent by terminal; uplink common message, regular data message sent by the terminal; uplink large packet data, which refers to a terminal; downlink configuration information, downlink exception.
A terminal reported data caching processing unit: the RMCU receives data reported by the terminal and sent by the EMCU, and analyzes the data to a data field; in order to save uplink data as much as possible, firstly, not encapsulating the data, but establishing a mapping node of the DevAddr and the data and saving the mapping node, and establishing a data cache pool of the DevAddr and the data mapping; and when the RMCU receives the request or broadcast of the base station, the data is encapsulated and sent according to the mode of common terminal communication.
A base station sends a terminal data processing unit: after receiving a broadcast message or an on-demand message from a base station side, a base station RMCU firstly judges the message type: if the message is a broadcast message, inquiring a terminal list of the currently cached agent, searching unregistered terminals, packaging and transmitting the registration message, and finishing the transmission of the registration packet agent; if the message is the on-demand message, searching the list for the uplink list cache, if the uplink data of the corresponding terminal exists, packaging the registration message and then sending the registration message, and finishing sending the data packet agent.
Specifically, the EMCU functional role is described in detail as follows:
the EMCU communicates directly with the down-hanging terminal: and the function of the simulation base station sends a broadcast data frame, acquires the attachment information of the receiving terminal, analyzes the information and sends the information to the RMCU, so that the RMCU can complete the basic information required by attaching and registering a data frame agent. Simulating the function of the base station to send the on-demand data frame, collecting the reported data of the receiving terminal, analyzing the information and sending the analyzed information to the RMCU, and ensuring that the RMCU can finish reporting the basic data information required by the data frame agent; and receiving base station configuration information sent by the RMCU, and after encapsulation, simulating the function of the base station to send a video-on-demand configuration frame to complete video-on-demand configuration of the base station to the terminal. The method specifically comprises the following steps:
and the data interaction processing unit with the RMCU: the data interaction between the RMCU and the EMCU informs the other party of receiving data through interruption, and after the data are received and sent, data communication is carried out through a serial port. When the RMCU or the EMCU is in a busy state, actively pulling down the terminal pin indicates that the busy state does not receive data, and if the opposite end detects that the pin is in the busy state, the opposite end does not send data. And sending data until the pin state is changed into the Idle state, and receiving the data by the opposite terminal through interrupt triggering.
A configuration analysis processing unit: the configuration processing unit is responsible for processing the data of the user configuration sent by the RMCU, firstly, after the user configuration data is analyzed, the radio frequency side is configured according to the configuration data.
A transmitted data encapsulation processing unit: the data frame encapsulation algorithm issued by the EMCU to the terminal is similar to the data frame processing sent by the base station to the common terminal, except that the spreading is performed by CC1120 hardware spreading, and the issued data is processed according to a cyclic sending processing unit. Specifically referring to fig. 3, fig. 3 is a schematic diagram of downlink data unpacking and related algorithms in the ub relay system according to an embodiment of the present invention.
A circular transmission queue processing unit: the EMCU terminal performs wireless data interaction and sends three messages in a downlink mode: the periodic broadcast message is used for the terminal to send a registration request; the request message is used for the terminal to carry out uplink data scheduling; and replying the ACK message of the terminal for receiving and confirming the uplink message sent by the terminal.
Message sending, storing and sending modes: three kinds of messages are uniformly put into a sending queue, the length of the sending queue is configured by relays, excessive broadcast messages in the sending queue cannot occur due to the fact that the number of actual terminals and the maximum relay queue length are inconsistent in an actual application scene, and the default design is that 1 relay supports 8 terminals at most.
The terminal receives the data processing unit: the data processing algorithm reported by the terminal is basically similar to that of a common terminal, only hardware spread spectrum is used for spread spectrum, only the original data segment part is reserved after the message is analyzed, and the data is packaged into a format described by an interactive data frame and is sent to the RMCU. Specifically referring to fig. 4, fig. 4 is a schematic diagram of an uplink data packet and a related algorithm in an ub relay system according to an embodiment of the present invention.
Fig. 5 is a flowchart of an interaction method of the un b relay data according to the embodiment of the present invention, and fig. 6 is a sequence diagram of a terminal attachment of the interaction of the un b relay data according to the embodiment of the present invention. As shown in fig. 5 and 6, the method comprises the following steps:
step S101, a terminal side MCU periodically sends broadcast frames to the terminal so that the terminal sends an attachment response frame when detecting that no registration exists.
In one embodiment, after the relay is powered on, the MCU at the terminal side periodically transmits the broadcast frame with a specific downlink frequency point. And after receiving, the terminal transmits the AttachReq by using a specific uplink frequency point.
Step S102, a terminal side MCU receives the attachment response frame, searches whether the terminal is in a registration list or not through keywords in the attachment response frame, if so, sends first reply information of the attachment response frame to the terminal, if not, inquires whether the registration list can add new equipment or not, if not, sends registration refusing information to the terminal, and if so, sends second reply information to the terminal and informs a base station side MCU to register the terminal.
In one embodiment, after receiving the AttachReq, the EMCU looks up the registered list UE for the presence by the key ESN, exemplary as follows:
ESN1 attachment status (registered or unregistered) DevAddr1
ESN2 Attachment status (registered or unregistered) DevAddr2
ESN3 Attachment status (registered or unregistered) DevAddr3
Step S103, the base station side MCU executes the registration process of the base station to realize the registration of the terminal and informs the terminal side MCU.
And step S104, the MCU at the terminal side adds the successfully registered terminal to the on-demand queue.
And the EMCU adds the UE which is successfully registered into the on-demand queue, and schedules and transmits the data to the UE according to the on-demand queue after receiving the data transmitted by the base station.
Fig. 7 is a flowchart of another method for interacting the un b relay data according to the embodiment of the present invention, and fig. 8 is a sequence diagram of reporting terminal data according to the interaction of the un b relay data according to the embodiment of the present invention. As shown in fig. 7 and 8, the method comprises the following steps:
step S201, the terminal side MCU polls the terminals in the registration list, and sends data on demand frames to the terminals according to the queue sequence period in the registration list, so that the terminals send the reported data.
And polling the UE in the registered list by the EMCU, and initiating a data-on-demand frame to the UE according to the queue sequence period.
Step S202, the terminal side MCU receives the reported data sent by the terminal, analyzes and encapsulates the reported data, updates the data into a cache list, and sends reported response information to the terminal in the next cycle.
And the UE receives the data-on-demand frame, reports the data to the EMCU in an on-demand period if the data needs to be reported, and regularly monitors the ACK in 1 scheduling period. If the ACK message of the EMCU is not monitored, the message is retransmitted during the next polling inter-site broadcasting, and if the ACK message of the EMCU is received, the data reporting of the current round is completed, and the data collection is continued. And after receiving the data reported by the UE, the EMCU updates the target data into a cache list after analyzing the target data, and sends ACK (acknowledgement) to the terminal in the next cycle.
Step S203, the MCU of the terminal side initiates an interrupt notification and sends the reported data to the MCU of the base station side, the MCU of the base station side receives the reported data and then packages the data to obtain common reported data, and waits for the request notification of the base station.
And the EMCU initiates an interrupt notification to the RMCU to send data to the RMCU, and after receiving the data, the RMCU repacks the data into the data which is commonly reported and waits for the request of the BBU.
Step S204, the base station side MCU receives the request notice of the base station, releases the associated data in the cache list and sends the reported reply information to the base station.
And the RMCU inquires a cache data list of mapping UE corresponding to the logic ID after receiving the request of the BBU, and packs the BBU. And if the RMCU is overtime and cannot successfully receive the ACK of the BBU, retransmitting the data after receiving the request of the BBU in the next request period, and if the RMCU successfully receives the ACK of the BBU, releasing the data of the UE in the cache queue.
Optionally, the base station side MCU receives the report data and then encapsulates the report data to obtain common report data, including: the base station side MCU receives the reported data; establishing a mapping node of the equipment address and the data for association and storing the mapping node to a data buffer pool; and after receiving the request or broadcast of the base station, encapsulating the reported data to obtain common reported data. In one embodiment, the RMCU receives data reported by a terminal and sent by the EMCU, and analyzes the data to a data field; in order to save uplink data as much as possible, firstly, not encapsulating the data, but establishing a mapping node of the DevAddr and the data and saving the mapping node, and establishing a data cache pool of the DevAddr and the data mapping; and when the RMCU receives the request or broadcast of the base station, the data is encapsulated and sent according to the mode of common terminal communication.
Fig. 9 is a flowchart of another method for interacting the un b relay data according to the embodiment of the present invention, and fig. 10 is a sequence diagram of a terminal configuration response of the interaction of the un b relay data according to the embodiment of the present invention. As shown in fig. 9 and 10, the method comprises the following steps:
step 301, the base station side MCU receives a configuration on-demand notification of the base station, where the configuration on-demand notification includes configuration item information, and the configuration item information is recorded in a data segment.
The base station puts configuration items such as reporting period, channels and other information into a DATA field through a high layer to request to the RMCU.
And step 302, the base station side MCU analyzes the configuration on-demand notification and sends a reply message to the base station.
Wherein, the RMCU receives the data frame, decapsulates and replies according to the common terminal.
And 303, intercepting the content of the data segment by the base station side MCU, caching the content into an on-demand data queue, and sending the content to the terminal side MCU through a serial port.
Wherein, the RMCU intercepts the DATA section and caches the DATA section to a multicast DATA queue; and sent to the EMCU through the serial port.
And step 304, after the MCU at the terminal side updates data according to the content of the data segment, updating an on-demand message queue, sending the updated data according to an on-demand period to the terminal, and releasing the associated data in the on-demand message queue after receiving the response of the terminal.
And after receiving the ACK of the terminal, releasing the node corresponding to the UE in the on-demand message queue.
Optionally, before the MCU on the base station side receives the configuration on-demand notification from the base station, the method further includes: after receiving the data message sent by the base station, the base station MCU judges the type of the data message, if the type of the data message is a broadcast message type, the base station MCU inquires a current cached terminal list, searches unregistered terminals, encapsulates the data message and then sends the data message; and if the type of the message is the type of the on-demand message, inquiring the uplink list cache, and if the uplink data of the corresponding terminal exists, packaging the data message and then transmitting the data message. In one embodiment, after the base station MCU receives the broadcast message or the on-demand message from the base station side, the type of the message is first determined: if the message is a broadcast message, inquiring a terminal list of the currently cached agent, searching unregistered terminals, packaging and transmitting the registration message, and finishing the transmission of the registration packet agent; if the message is the on-demand message, searching the list for the uplink list cache, if the uplink data of the corresponding terminal exists, packaging the registration message and then sending the registration message, and finishing sending the data packet agent.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will appreciate that the embodiments of the present invention are not limited to the specific embodiments described herein, and that various obvious changes, adaptations, and substitutions are possible, without departing from the scope of the embodiments of the present invention. Therefore, although the embodiments of the present invention have been described in more detail through the above embodiments, the embodiments of the present invention are not limited to the above embodiments, and many other equivalent embodiments may be included without departing from the concept of the embodiments of the present invention, and the scope of the embodiments of the present invention is determined by the scope of the appended claims.

Claims (8)

  1. A UNB relay system, comprising: the base station is connected with the relay for data communication, the relay is connected with the terminal for data communication, and the relay is used for realizing the attachment, data reporting and response configuration of the terminal, wherein the relay comprises a terminal side MCU and a base station side MCU, the terminal side MCU is used for periodically sending broadcast messages and on-demand messages to the terminal, receiving and confirming the response of the terminal, the base station side MCU is used for simulating the terminal to carry out data communication with the base station, and the terminal side MCU and the base station side MCU carry out message interaction;
    the relay comprises a terminal registration module used for realizing the registration and attachment of the terminal; the terminal data reporting module is used for realizing the data reporting of the terminal; the terminal configuration response module is used for realizing the configuration response of the terminal;
    the terminal registration module is specifically configured to control:
    a terminal side MCU periodically transmits a broadcast frame to the terminal so that the terminal transmits an attachment response frame when detecting that no registration exists;
    the MCU at the terminal side receives the attachment response frame, searches whether the terminal is in a registration list or not through keywords in the attachment response frame, if so, sends first reply information of the attachment response frame to the terminal, if not, inquires whether the registration list can add new equipment or not, if not, sends registration refusing information to the terminal, and if so, sends second reply information to the terminal and informs the MCU at the base station side to register the terminal;
    the base station side MCU executes the registration process of the base station to realize the registration of the terminal and informs the terminal side MCU;
    and the MCU at the terminal side adds the successfully registered terminal to the on-demand queue.
  2. 2. The UNB relay system according to claim 1, wherein the terminal data reporting module is specifically configured to control:
    the terminal side MCU polls the terminals in a registration list and sends data on demand frames to the terminals according to the queue sequence period in the registration list so as to enable the terminals to send reported data;
    the terminal side MCU receives the reported data sent by the terminal, analyzes and encapsulates the reported data, updates the reported data into a cache list, and sends reported response information to the terminal in the next cycle;
    the terminal side MCU initiates an interrupt notification and sends the reported data to the base station side MCU, the base station side MCU receives the reported data and then packages the reported data to obtain common reported data, and the terminal side MCU waits for the on-demand notification of the base station;
    and the base station side MCU receives the on-demand notice of the base station, releases the associated data in the cache list and sends a report reply message to the base station.
  3. 3. The UNB relay system according to claim 1, wherein the terminal configuration response module is specifically configured to control:
    the base station side MCU receives a configuration on-demand notice of the base station, wherein the configuration on-demand notice comprises configuration item information, and the configuration item information is recorded in a data segment;
    the base station side MCU analyzes the configuration on-demand notice and sends a return message to the base station;
    the base station side MCU intercepts the content of the data segment, caches the content in an on-demand data queue, and sends the content to a terminal side MCU through a serial port;
    and after the terminal side MCU updates data according to the content of the data segment, the on-demand message queue is updated, the updated data is sent to the terminal according to an on-demand period, and after the response of the terminal is received, the associated data in the on-demand message queue is released.
  4. A UNB relay data interaction method, wherein a system executing the method comprises a base station, a terminal and a relay, the base station is connected with the relay for data communication, the relay is connected with the terminal for data communication and used for realizing the attachment of the terminal, the relay comprises a terminal side MCU and a base station side MCU, the terminal side MCU is used for periodically sending broadcast messages and on-demand messages to the terminal, receiving the response of the terminal and confirming, the base station side MCU is used for simulating the terminal to carry out data communication in the base station, and the terminal side MCU and the base station side MCU carry out message interaction, and the method is characterized by comprising the following steps:
    a terminal side MCU periodically transmits a broadcast frame to the terminal so that the terminal transmits an attachment response frame when detecting that no registration exists;
    the MCU at the terminal side receives the attachment response frame, searches whether the terminal is in a registration list or not through keywords in the attachment response frame, if so, sends first reply information of the attachment response frame to the terminal, if not, inquires whether the registration list can add new equipment or not, if not, sends registration refusing information to the terminal, and if so, sends second reply information to the terminal and informs the MCU at the base station side to register the terminal;
    the base station side MCU executes the registration process of the base station to realize the registration of the terminal and informs the terminal side MCU;
    and the MCU at the terminal side adds the successfully registered terminal to the on-demand queue.
  5. A UNB relay data interaction method, a system for executing the method comprises a base station, a terminal and a relay, wherein the base station is connected with the relay for data communication, the relay is connected with the terminal for data communication and used for realizing data report of the terminal, the relay comprises a terminal side MCU and a base station side MCU, the terminal side MCU is used for periodically sending broadcast messages and on-demand messages to the terminal, receiving the response of the terminal and confirming, the base station side MCU is used for simulating the terminal to carry out data communication in the base station, and the terminal side MCU and the base station side MCU carry out message interaction, and the method is characterized by comprising the following steps:
    the terminal side MCU polls the terminals in a registration list and sends data on demand frames to the terminals according to the queue sequence period in the registration list so as to enable the terminals to send reported data;
    the terminal side MCU receives the reported data sent by the terminal, analyzes and encapsulates the reported data, updates the reported data into a cache list, and sends reported response information to the terminal in the next cycle;
    the terminal side MCU initiates an interrupt notification and sends the reported data to the base station side MCU, the base station side MCU receives the reported data and then packages the reported data to obtain common reported data, and the terminal side MCU waits for the on-demand notification of the base station;
    and the base station side MCU receives the on-demand notice of the base station, releases the associated data in the cache list and sends a report reply message to the base station.
  6. 6. The UNB relay data interaction method according to claim 5, wherein the base station side MCU encapsulates the reported data after receiving the reported data to obtain common reported data, and the method comprises the following steps:
    the base station side MCU receives the reported data;
    establishing a mapping node of the equipment address and the data for association and storing the mapping node to a data buffer pool;
    and after receiving the request or broadcast of the base station, encapsulating the reported data to obtain common reported data.
  7. A UNB relay data interaction method, wherein a system executing the method comprises a base station, a terminal and a relay, the base station is connected with the relay for data communication, the relay is connected with the terminal for data communication and is used for realizing the terminal and configuring response, the relay comprises a terminal side MCU and a base station side MCU, the terminal side MCU is used for periodically sending broadcast messages and on-demand messages to the terminal, receiving the response of the terminal and confirming, the base station side MCU is used for simulating the terminal to carry out data communication in the base station, and the terminal side MCU and the base station side MCU carry out message interaction, and the method is characterized by comprising the following steps:
    the base station side MCU receives a configuration on-demand notice of the base station, wherein the configuration on-demand notice comprises configuration item information, and the configuration item information is recorded in a data segment;
    the base station side MCU analyzes the configuration on-demand notice and sends a return message to the base station;
    the base station side MCU intercepts the content of the data segment, caches the content in an on-demand data queue, and sends the content to a terminal side MCU through a serial port;
    and after the terminal side MCU updates data according to the content of the data segment, updating an on-demand message queue, sending the updated data to the terminal according to an on-demand period, and releasing the associated data in the on-demand message queue after receiving the response of the terminal.
  8. 8. The UNB relay data interaction method according to claim 7, wherein before the base station-side MCU receives the configuration on-demand notification of the base station, the method further comprises:
    after receiving the data message sent by the base station, the base station MCU judges the type of the data message, if the type of the data message is a broadcast message type, the base station MCU inquires a current cached terminal list, searches unregistered terminals, encapsulates the data message and then sends the data message; and if the type of the message is the type of the on-demand message, inquiring the uplink list cache, and if the uplink data of the corresponding terminal exists, packaging the data message and then transmitting the data message.
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