CN110536454A - Network slot division methods and device - Google Patents
Network slot division methods and device Download PDFInfo
- Publication number
- CN110536454A CN110536454A CN201910877658.3A CN201910877658A CN110536454A CN 110536454 A CN110536454 A CN 110536454A CN 201910877658 A CN201910877658 A CN 201910877658A CN 110536454 A CN110536454 A CN 110536454A
- Authority
- CN
- China
- Prior art keywords
- slot
- terminal
- network
- base station
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
- H04B13/02—Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of network slot division methods and device, applied to base station, the described method includes: in the reception signal slot of the current Shi Yuanzhong of the base station, the end message for the updated current network that control terminal is sent is received, the end message of the current network includes terminal quantity and communication requirement；According to the end message of the current network, the transmission signal slot in the base station, which is sent, updates time slot division instruction to each terminal, divides each terminal according to the update time slot and instructs the network slot division for adjusting next Shi Yuanzhong.Network slot division methods of the invention are according to the number of nodes and communication requirement of current network, it the current network slot of dynamic configuration can divide in real time, each network node is set to send signal in the time slot of distribution, signal is received in the time slot for not sending signal, signal conflict is avoided the problem that, to improve the effectiveness in underwater sound communication.
Description
Technical field
This application involves subsurface communication technical field more particularly to a kind of network slot division methods and devices.
Background technique
Sound wave is a kind of form of energy that can carry out long distance transmission in an aqueous medium, therefore underwater sound communication is underwater at present
Most suitable communication is the main means for realizing underwater synthetic information Perception and information exchange, and wide range of services is in sea
Ocean exploitation and Military Application.
Although sound wave has the advantages that spread speed is fast and propagation distance is remote under water, sound wave also has under water to decline
Subtract the disadvantages of fast, delay is long, packet loss is high and available bandwidth is narrow, water sound communication technique in the prior art is caused to mostly use two
Point-to-point data communication between node realizes the problem of facing data collision when the signal of multiple nodes transmits under water,
To generate bigger data delay and loss of data.
As it can be seen that underwater sound communication in the prior art faces asking for data collision in the data transmission for realizing multiple nodes
Topic reduces data transmission efficiency to generate bigger data delay and loss of data.
Summary of the invention
A kind of network slot division methods provided by the present application and device can solve multiple nodes and face in data transmission
The problem of data collision, thus reduced data delay and loss of data, improve data transfer efficiency.
In a first aspect, the present invention provides a kind of network slot division methods, it is applied to base station, which comprises in institute
In the reception signal slot for stating the current Shi Yuanzhong of base station, the terminal letter for the updated current network that control terminal is sent is received
Breath, the end message of the current network includes terminal quantity and communication requirement；According to the end message of the current network, In
The transmission signal slot of the base station, which sends to update time slot and divide instruction, arrives each terminal, make each terminal according to more
New time slot divides the network slot division that instruction adjusts next Shi Yuanzhong；Wherein, the network slot division refers to for network
In base station and each terminal distribution multiple transmission signal slots and multiple reception signal slots, the transmission signal slot uses
In sending signal and cannot be used for receiving signal, the reception signal slot is for receiving signal and cannot be used for sending signal.
Preferably, it includes: network node quantity that the update time slot, which divides instruction, and the network node quantity refers to network
In all nodes quantity；Slot length, the slot length, which refers to, distributes to the time span that each node sends data packet；
Transmitted reference time, the transmitted reference time refer to that network node calculates this node according to the transmitted reference time and sends number
According to the time of packet；Node corresponds to shooting sequence, and the node corresponds to shooting sequence and refers to that each node distribution sends number in network
According to the sequence of packet；Wherein, the node includes the base station and each terminal.
Preferably, the method also includes: the synchronous school of clock is carried out to the terminal of the current network according to predetermined period
It is quasi-；Or/and in the reception signal slot of the base station, the terminal letter for the updated current network that control terminal is sent is received
After breath, the end message according to the current network is sent out in the transmission signal slot of the base station to each terminal
Before updating time slot division instruction out, the method also includes: clock synchronous calibration is carried out to the terminal of the current network.
Preferably, the node to the current network carries out clock synchronous calibration, comprising: tranmitting data register calibration command
Each terminal into current network；The sending instant for obtaining the base station tranmitting data register calibration command is answered with clock alignment is received
The time difference of the time of reception of instruction is answered, the clock alignment response instruction receives the clock alignment for each terminal and refers to
The response instruction sent after order to base station；According to the time difference, the prover time of each terminal is got；By each end
The prover time at end is sent to corresponding terminal, and each terminal is made to update the current time prover time.
Second aspect, the present invention provide a kind of network slot division methods, are applied to terminal, which comprises current
Terminal receives the update time slot that base station is sent and divides instruction；It is divided and is instructed according to the update time slot, obtain the present terminal
Transmission signal slot；Wherein, in current network slot, the transmission signal slot of the non-present terminal is described current
The reception signal slot of terminal.
Preferably, the update time slot that the present terminal receives that base station is sent divides instruction, comprising: if present terminal is
In network termination, then the update time slot that the base station is sent is received in the reception signal slot of present terminal and divides instruction；If working as
Preceding terminal is newly-increased terminal, then the inscribed update time slot division for receiving the base station transmission of a present terminal time slot in office refers to
It enables.
Preferably, described divided according to the update time slot instructs, and obtains the transmission signal slot of the present terminal, wraps
Include: it includes that fiducial time, slot length and present terminal correspond to shooting sequence that the update time slot, which divides instruction,；According to the base
Between punctual, the slot length and the present terminal correspond to transmission sequence, obtain the present terminal in transmission signal every time
When at the beginning of.
Preferably, the method also includes: receive the clock alignment instruction that the base station sends；Tranmitting data register calibrates response
The base station is instructed, the clock alignment response instruction is that the present terminal receives Xiang Suoshu after the clock alignment instruction
The response instruction that base station is sent；Receive the prover time for the present terminal that the base station is sent；According to the prover time, update
Current time is the prover time.
The third aspect, the present invention provide a kind of network slot dividing device, are applied to base station, described device includes: first
Receiving module, in the reception signal slot of the current Shi Yuanzhong of the base station, receiving the updated of control terminal transmission
The end message of current network；Sending module, for the end message according to the current network, the transmission in the base station is believed
Number time slot, which sends to update time slot and divide instruction, arrives each terminal, and each terminal is made to divide instruction tune according to the updates time slot
The network slot of whole next Shi Yuanzhong divides.
Fourth aspect, the present invention provide a kind of network slot dividing device, are applied to terminal, described device includes: second
Receiving module receives the update time slot that base station is sent for present terminal and divides instruction；Module is obtained, for according to the update
Time slot divides instruction, obtains the transmission signal slot of the present terminal.
The present invention provides a kind of network slot division methods and device, is applied to base station, which comprises in the base
In the reception signal slot of the current Shi Yuanzhong to stand, the end message for the updated current network that control terminal is sent, institute are received
The end message for stating current network includes terminal quantity and communication requirement；According to the end message of the current network, described
The transmission signal slot of base station, which is sent, updates time slot division instruction to each terminal, when making each terminal according to the update
Gap divides the network slot division that instruction adjusts next Shi Yuanzhong；Wherein, the network slot division refers in network
The multiple transmission signal slots and multiple reception signal slots of base station and each terminal distribution, the transmission signal slot can only be used
In sending signal, the reception signal slot is only used for receiving signal.Network slot division methods of the invention are according to current
The number of nodes and communication requirement of network the current network slot of dynamic configuration can divide in real time, each network node made to exist
Signal is sent in the time slot of distribution, and signal is received in the time slot for not sending signal, avoids the problem that signal conflict, to reduce
Data delay and loss of data, improve data transfer efficiency.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without any creative labor, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of network slot division methods provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of network slot division methods provided in an embodiment of the present invention；
Fig. 3 is a kind of flow chart of network slot division methods provided in an embodiment of the present invention；
Fig. 4 is a kind of flow chart of network slot division methods provided in an embodiment of the present invention；
Fig. 5 is a kind of structural block diagram of network slot dividing device provided in an embodiment of the present invention；
Fig. 6 is a kind of structural block diagram of network slot dividing device provided in an embodiment of the present invention.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the application, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
Fig. 1 is a kind of flow chart of network slot division methods provided in an embodiment of the present invention；As shown in Figure 1, of the invention
Network slot division methods in embodiment specifically comprise the following steps: when being applied to base station
Step S101 receives the update that control terminal is sent in the reception signal slot of the current Shi Yuanzhong of the base station
The end message of current network afterwards.
Specifically, network node in the present embodiment is divided into: control terminal, base station and terminal, wherein control terminal is on land
On, base station and terminal are under water.Under the network architecture, base-station node one and only one, terminal node can be according to network
Demand dynamic configuration.
Base-station node major function are as follows: (1) collect and integrate the data that each terminal node reports, be finally reported to control
End, (2) inquiry network-related parameters and node condition, (3) issue control instruction.
Terminal node major function are as follows: (1) send sensing data, the inquiry that (2) issue base-station node according to setting
Instruction and control instruction carry out response and response.When underwater number of terminals increases or reduces, control terminal is sent to base station to be worked as
The information such as the end message of preceding network, including but not limited to terminal quantity, terminal number, communication requirement, transmission mode；When underwater
Terminal quantity when not changing, control terminal does not send the end message of current network to base station, makes each section of present networks
Point divides according to current network slot and carries out signal transmission.
It should be noted that it is first when time shaft is melted into a certain number of by the present embodiment, when member is divided into multiple when each
Gap distributes a certain number of time slots to each network node in member when each to emit signal, without emit signal when
The signal that other websites are emitted then is received in gap；Therefore base station needs to receive control in the reception signal slot of current Shi Yuanzhong
The end message for the updated current network that end processed is sent.
Step S102, according to the end message of the current network, the transmission signal slot in the base station, which is sent, to be updated
Time slot divides instruction and arrives each terminal, so that each terminal is divided instruction according to the update time slot and adjusts next Shi Yuanzhong
Network slot divide.
Specifically, the termination capacity in current network changes, and in order to guarantee the efficiency and real-time of communication, base station needs
Again the time slot that signal is sent to current terminal distribution divides each terminal in current network according to newest time slot and adjusts
It is whole it is respective send signal at the time of, send signal duration, receive signal at the time of and receive signal duration.
Wherein, when network slot division refers to for multiple transmission signals of base station and each terminal distribution in network
Gap and multiple reception signal slots, the transmission signal slot is for sending signal and cannot be used for receiving signal, the reception
Signal slot is for receiving signal and cannot be used for sending signal.
Specifically, at one in the member period, base station and each terminal can distribute multiple transmission signal slots, not send
It is then the time slot for receiving other node signal transmitteds in the time slot of signal, as receives signal slot；Wherein, the transmission letter
For sending signal and cannot be used for receiving signal, the receptions signal slot is used to receive signal and cannot be used for sending out for number time slot
The number of delivering letters.
The network slot division methods that the embodiment of the present invention provides, when being applied to base station, which comprises described
In the reception signal slot of the current Shi Yuanzhong of base station, the end message for the updated current network that control terminal is sent is received,
The end message of the current network includes terminal quantity and communication requirement；According to the end message of the current network, in institute
The transmission signal slot for stating base station, which is sent, updates time slot division instruction to each terminal, makes each terminal according to the update
Time slot divides the network slot division that instruction adjusts next Shi Yuanzhong；Wherein, the network slot division refers in network
Base station and each terminal distribution multiple transmission signal slots and multiple reception signal slots, the transmission signal slot is used for
It sends signal and cannot be used for receiving signal, the reception signal slot is for receiving signal and cannot be used for sending signal.This
Terminal quantity and actual demand of the network slot division methods of invention according to current network, can in real time dynamic configuration it is current
Network slot divides, and each network node is made to send signal in the time slot of distribution, and letter is received in the time slot for not sending signal
Number, signal conflict is avoided the problem that, to improve the effectiveness in underwater sound communication.
In one embodiment of the invention, it includes: network node quantity, the network that the update time slot, which divides instruction,
Number of nodes refers to the quantity of all nodes in network；Slot length, the slot length refer to that distributing to each node sends
The time span of data packet；The transmitted reference time, when the transmitted reference time refers to network node according to the transmitted reference
Between calculate this node send data packet time；Node corresponds to shooting sequence, and the node corresponds to shooting sequence and refers in network
Each node distribution sends the sequence of data packet；Wherein, the node includes the base station and each terminal.
It should be noted that it includes but is not limited to net that base station, which is sent to each terminal in the content for updating time slot division instruction,
Network number of nodes, slot length, fiducial time and node correspond to shooting sequence.Wherein, it is to use array that node, which corresponds to shooting sequence,
It indicates, such as the terminal that number is 3, is 4 in the sequence of the transmission signal of a new round.
Fig. 2 is a kind of flow chart of network slot division methods provided in an embodiment of the present invention；As shown in Fig. 2, of the invention
Network slot division methods in embodiment further include following steps when being applied to base station:
Step S201, each terminal of the tranmitting data register calibration command into current network.
Step S202 obtains the sending instant of the base station tranmitting data register calibration command and receives clock alignment response instruction
The time of reception time difference.
Step S203 gets the prover time of each terminal according to the time difference.
The prover time of each terminal is sent corresponding terminal by step S204, updates each terminal
Current time is the prover time.
Specifically, the embodiment of the present invention is to distinguish different channels with the time to divide, and communicating pair only allows advising
Fixed time slot sends and receives signal, therefore synchronizes the precondition of protocol communication normal work in time.Net is synchronous
Be exactly that system is synchronous, in order to make the protocol network correctly work by time division multiple access way, net in all websites to symbol and when
The division of gap must have unified standard, make to emit all unified time slot starting point each time and make regular basis.Realize that net synchronization can
To use different methods.Length has master-slave synchronisation method and independent clock Synchronos method in systems.Master-slave synchronisation is owned by France in complete
The net method of synchronization, it is removed the clock of all devices in control system using frequency control system, keeps their frequency and phase straight
It connects or is consistent indirectly with the frequency of some master clock.Independent clock Synchronos method belongs to plesiochronous mode, to realize
System is synchronous.Each equipment in this method requirement system is intended to generate timing letter using the very high quartz (controlled) oscillator of stability
Number.In view of equipment cost problem, the present embodiment uses master-slave synchronisation method.In master-slave synchronisation method, it is designated as event base
Periodic transmission clock alignment is wanted to synchronize in quasi- base station.
In one embodiment of the invention, the synchronous school of clock is carried out according to terminal of the predetermined period to the current network
Standard, for example, when one the member period or it is multiple when the member period it is primary to network re-synchronization；Or receiving control terminal hair
After the end message for the updated current network sent, issued more in the transmission signal slot of the base station to each terminal
New time slot carries out clock synchronous calibration to each terminal in current network before dividing instruction, to guarantee the clock of each terminal
Unified system clock is formed with base station clock, avoiding the problem that clock is asynchronous leads to data collision or lose.
In one embodiment of the invention, by taking terminal node A as an example, base station is worked as by Beidou or the GPS acquisition carried
Preceding precise time adds sending instant to terminal node A tranmitting data register calibration command, and in tranmitting data register calibration command packet
Time Tsend；When base-station node receives the time time of reception T for receiving clock alignment response instruction of node Areceive, when calculating
Between difference Tdiff；Base-station node is to node A sending time aligned instructions, sending instant TBase, command content is the specified school node A
T between punctual.
T=TBase+(Tdiff-Tprocess)/2 (formula 1)
Wherein, T is the current alignment time of terminal node A, TBaseFor benchmark time, TdiffFor sending instant time Tsend
With time time of reception TreceiveTime difference, TprocessClock alignment, which is handled, for node A instructs the time it takes.
When terminal node A receives prover time T, the current time is updated to prover time T.
Fig. 3 is a kind of flow chart of network slot division methods provided in an embodiment of the present invention；As shown in figure 3, of the invention
Network slot division methods in embodiment specifically comprise the following steps: when being applied to terminal
Step S301, present terminal receive the update time slot that base station is sent and divide instruction.
Step S302 divides according to the update time slot and instructs, obtains the transmission signal slot of the present terminal.
Wherein, in current network slot, the signal slot that sends of the non-present terminal is the present terminal
Receive signal slot.
Specifically, the embodiment of the present invention receives the update time slot that base station is sent and divides instruction by taking terminal node A as an example,
Get the distribution condition for sending signal slot and receiving signal slot of terminal node A.
In one embodiment of the invention, the update time slot that the present terminal receives that base station is sent divides instruction, packet
It includes: if present terminal is to have received the update that the base station is sent in the reception signal slot of present terminal in network termination
Time slot divides instruction；If present terminal is newly-increased terminal, a present terminal time slot in office is inscribed to receive the base station transmission
Update time slot divide instruction.
It should be noted that causing to update current network slot stroke since current network terminal quantity changes
Point, the current network terminal is there are two kinds of terminal, and one is the terminals having existed in network i.e. in network termination, and
And it is the allocated cross transmission signal slot and receive signal slot；Another kind is the terminal newly increased, does not distribute transmission letter
Number time slot and receive signal slot, thus two kinds of terminal receive update time slot divide instruction time it is different, if
Present terminal is then to receive the update time slot that the base station is sent in the reception signal slot of present terminal in network termination and draw
Split instruction；If present terminal is newly-increased terminal, the inscribed update receiving the base station and sending of a present terminal time slot in office
Time slot divides instruction.
In one embodiment of the invention, described divided according to the update time slot instructs, and obtains the present terminal
Transmission signal slot, comprising: it includes the corresponding hair of fiducial time, slot length and present terminal that the update time slot, which divides instruction,
Penetrate sequence；Transmission sequence is corresponded to according to the fiducial time, the slot length and the present terminal, obtains the current end
At the beginning of end when sending signal every time.
Specifically, in an embodiment of the present invention to a certain number of time slots of all-network node distribution to emit signal,
And the number of timeslots that dynamic setting network node capacity and each network node distribute.By base-station node in its transmitting signal
Time slot section in send update time slot divide instruction complete, update time slot divide command content include: (1) number of network node
Amount, (2) slot length, (3) transmitted reference time, (4) node corresponds to shooting sequence.Wherein, network node quantity, which refers to, includes
All number of nodes including base-station node；Slot length refers to that the time for distributing to each network node transmission data packet is long
Degree；The transmitted reference time refers to all-network node on the basis of certain event, starts to calculate the time that this node sends data packet；
When node corresponds to shooting sequence and refers to that the change due to number of nodes leads to that each node serial number cannot be arranged in order in network,
The sequence for sending data packet is redistributed to node each in network.After each terminal node in network receives the instruction,
The protocol configuration is updated according to command content and recalculates this node and sends packet time point, and calculation method is as follows:
Tsend_pkt=T0+ t* (n-1) * i (formula 2)
Wherein, the T in formula 2send_pktIt is present terminal when calculating data transmission after receiving update time slot instruction
It carves, T0To update the fiducial time in time slot command content, t is slot length, and n is that present terminal is sending the suitable of data packet
Sequence, such as the n=1 of first transmission, the second node sent is n=2, and so on；I is in the network slot of a new round
Data packet sends sequence number, such as i=0 when present terminal first data packet of transmission, present terminal send second data packet
When i=1, and so on.
Fig. 4 is a kind of flow chart of network slot division methods provided in an embodiment of the present invention；As shown in figure 4, of the invention
Network slot division methods in embodiment further include following steps when being applied to terminal:
Step S401 receives the clock alignment instruction that the base station is sent.
Step S402, tranmitting data register calibrate response instruction to the base station.
Step S403 receives the prover time for the present terminal that the base station is sent.
Step S404, according to the prover time, update current time is the prover time.
Specifically, the clock alignment response instruction is that the present terminal receives Xiang Suoshu after the clock alignment instruction
The response instruction that base station is sent receives the clock alignment instruction that base station is sent, and sends the base station for response instruction, is base
Station calculates the prover time of present terminal, and further according to the prover time, update current time is the prover time, completes
Clock alignment.
Fig. 5 is a kind of structural block diagram of network slot dividing device provided in an embodiment of the present invention；As shown in figure 5, this hair
The network slot dividing device that bright embodiment provides, when being applied to base station, described device includes:
First receiving module 510, for receiving control terminal in the reception signal slot of the current Shi Yuanzhong of the base station
The end message of the updated current network sent.
Sending module 520, for the end message according to the current network, the transmission signal slot in the base station is sent out
It send and updates time slot division instruction to each terminal, adjust each terminal according to update time slot division instruction next
The network slot of Shi Yuanzhong divides.
Fig. 6 is a kind of structural block diagram of network slot dividing device provided in an embodiment of the present invention；As shown in fig. 6, this hair
The network slot dividing device that bright embodiment provides, when being applied to terminal, described device includes:
Second receiving module 610 receives the update time slot that base station is sent for present terminal and divides instruction.
Module 620 is obtained, is instructed for being divided according to the update time slot, when obtaining the transmission signal of the present terminal
Gap.
The present invention provides a kind of network slot division methods and device, is applied to base station, which comprises in the base
In the reception signal slot of the current Shi Yuanzhong to stand, the end message for the updated current network that control terminal is sent, institute are received
The end message for stating current network includes terminal quantity and communication requirement；According to the end message of the current network, described
The transmission signal slot of base station, which is sent, updates time slot division instruction to each terminal, when making each terminal according to the update
Gap divides the network slot division that instruction adjusts next Shi Yuanzhong；Wherein, the network slot division refers in network
The multiple transmission signal slots and multiple reception signal slots of base station and each terminal distribution, the transmission signal slot is for sending out
The number of delivering letters and cannot be used for receive signal, the receptions signal slot for receive signal and cannot be used for transmission signal.This hair
Bright network slot division methods, can the current net of real-time dynamic configuration according to the number of nodes and communication requirement of current network
Network time slot divides, and so that each network node is sent signal in the time slot of distribution, signal is received in the time slot for not sending signal,
Signal conflict is avoided the problem that, to improve the effectiveness in underwater sound communication.
It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above is only a specific embodiment of the invention, is made skilled artisans appreciate that or realizing this hair
It is bright.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and applied principle and features of novelty phase one herein
The widest scope of cause.
Claims (10)
1. a kind of network slot division methods, which is characterized in that be applied to base station, which comprises
In the reception signal slot of the current Shi Yuanzhong of the base station, the updated current network that control terminal is sent is received
End message, the end message of the current network include terminal quantity and communication requirement；
According to the end message of the current network, the transmission signal slot in the base station sends update time slot division instruction and arrives
Each terminal makes each terminal divide the network slot stroke that instruction adjusts next Shi Yuanzhong according to the update time slot
Point；
Wherein, the network slot divide refer to for base station and each terminal distribution in network multiple transmission signal slots and
Multiple reception signal slots, the transmission signal slot is for sending signal and cannot be used for receiving signal, the reception signal
Time slot is for receiving signal and cannot be used for sending signal.
2. the method according to claim 1, wherein update time slot division instruction includes:
Network node quantity, the network node quantity refer to the quantity of all nodes in network；
Slot length, the slot length, which refers to, distributes to the time span that each node sends data packet；
Transmitted reference time, the transmitted reference time refer to that network node calculates this node hair according to the transmitted reference time
Send the time of data packet；
Node corresponds to shooting sequence, and the node corresponds to shooting sequence and refers to that each node distribution sends the suitable of data packet in network
Sequence；
Wherein, the node includes the base station and each terminal.
3. according to the method described in claim 2, it is characterized in that, the method also includes:
Clock synchronous calibration is carried out according to terminal of the predetermined period to the current network；Or/and
In the reception signal slot of the base station, receive control terminal send updated current network end message it
Afterwards, the end message according to the current network issues more in the transmission signal slot of the base station to each terminal
Before new time slot divides instruction, the method also includes:
Clock synchronous calibration is carried out to the terminal of the current network.
4. according to the method described in claim 3, it is characterized in that, described synchronous to the node progress clock of the current network
Calibration, comprising:
Each terminal of the tranmitting data register calibration command into current network；
It obtains the sending instant of the base station tranmitting data register calibration command and receives the time of reception of clock alignment response instruction
Time difference, the clock alignment response instruction are to answer after each terminal receives the clock alignment instruction to what base station was sent
Answer instruction；
According to the time difference, the prover time of each terminal is got；
Corresponding terminal is sent by the prover time of each terminal, so that each terminal is updated current time described
Prover time.
5. a kind of network slot division methods, which is characterized in that be applied to terminal, which comprises
Present terminal receives the update time slot that base station is sent and divides instruction；
It is divided and is instructed according to the update time slot, obtain the transmission signal slot of the present terminal；
Wherein, in current network slot, the non-present terminal sends the reception that signal slot is the present terminal
Signal slot.
6. according to the method described in claim 5, it is characterized in that, the present terminal receives the update time slot stroke that base station is sent
Split instruction, comprising:
If present terminal is to have received the update that the base station is sent in the reception signal slot of present terminal in network termination
Time slot divides instruction；
If present terminal is newly-increased terminal, the inscribed update time slot receiving the base station and sending of a present terminal time slot in office
Divide instruction.
7. according to the method described in claim 6, it is characterized in that, described divide instruction, acquisition institute according to the update time slot
State the transmission signal slot of present terminal, comprising:
It includes that fiducial time, slot length and present terminal correspond to shooting sequence that the update time slot, which divides instruction,；
Transmission sequence is corresponded to according to the fiducial time, the slot length and the present terminal, obtains the present terminal
At the beginning of when sending signal every time.
8. the method according to the description of claim 7 is characterized in that the method also includes:
Receive the clock alignment instruction that the base station is sent；
Tranmitting data register calibrates response instruction to the base station, and the clock alignment response instruction is described in the present terminal receives
The response instruction sent after clock alignment instruction to the base station；
Receive the prover time for the present terminal that the base station is sent；
According to the prover time, update current time is the prover time.
9. a kind of network slot dividing device, which is characterized in that be applied to base station, described device includes:
First receiving module, in the reception signal slot of the current Shi Yuanzhong of the base station, receiving what control terminal was sent
The end message of updated current network；
Sending module, for the end message according to the current network, the transmission signal slot in the base station, which is sent, to be updated
Time slot divides instruction and arrives each terminal, so that each terminal is divided instruction according to the update time slot and adjusts next Shi Yuanzhong
Network slot divide.
10. a kind of network slot dividing device, which is characterized in that be applied to terminal, described device includes:
Second receiving module receives the update time slot that base station is sent for present terminal and divides instruction；
Module is obtained, is instructed for being divided according to the update time slot, obtains the transmission signal slot of the present terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910877658.3A CN110536454A (en) | 2019-09-17 | 2019-09-17 | Network slot division methods and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910877658.3A CN110536454A (en) | 2019-09-17 | 2019-09-17 | Network slot division methods and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110536454A true CN110536454A (en) | 2019-12-03 |
Family
ID=68668879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910877658.3A Pending CN110536454A (en) | 2019-09-17 | 2019-09-17 | Network slot division methods and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110536454A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113473620A (en) * | 2021-06-16 | 2021-10-01 | 深圳零壹空间电子有限公司 | Dynamic time slot allocation method, device, computer equipment and readable storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098093A (en) * | 2010-11-30 | 2011-06-15 | 中国船舶重工集团公司第七一五研究所 | TDMA (Time Division Multiple Address) method used in underwater sound communication network |
| CN104348561A (en) * | 2013-08-07 | 2015-02-11 | 中国科学院声学研究所 | Synchronizing method of underwater communication network based on centralized topology structure |
| US20150071280A1 (en) * | 2013-09-10 | 2015-03-12 | Suunto Oy | Underwater transceiver device, underwater communication system and related communication method |
| CN104486005A (en) * | 2014-11-30 | 2015-04-01 | 华南理工大学 | Multi-node rapid communication method suitable for contention channel underwater acoustic network |
| CN106533592A (en) * | 2016-11-25 | 2017-03-22 | 河海大学常州校区 | Multi-service data communication method and communication system for underwater acoustic network |
| CN106683373A (en) * | 2016-12-06 | 2017-05-17 | 北京臻迪机器人有限公司 | Underwater unmanned ship communication system |
| CN106781371A (en) * | 2016-12-06 | 2017-05-31 | 北京臻迪科技股份有限公司 | A kind of communication system of unmanned boat under water |
-
2019
- 2019-09-17 CN CN201910877658.3A patent/CN110536454A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098093A (en) * | 2010-11-30 | 2011-06-15 | 中国船舶重工集团公司第七一五研究所 | TDMA (Time Division Multiple Address) method used in underwater sound communication network |
| CN104348561A (en) * | 2013-08-07 | 2015-02-11 | 中国科学院声学研究所 | Synchronizing method of underwater communication network based on centralized topology structure |
| US20150071280A1 (en) * | 2013-09-10 | 2015-03-12 | Suunto Oy | Underwater transceiver device, underwater communication system and related communication method |
| CN104486005A (en) * | 2014-11-30 | 2015-04-01 | 华南理工大学 | Multi-node rapid communication method suitable for contention channel underwater acoustic network |
| CN106533592A (en) * | 2016-11-25 | 2017-03-22 | 河海大学常州校区 | Multi-service data communication method and communication system for underwater acoustic network |
| CN106683373A (en) * | 2016-12-06 | 2017-05-17 | 北京臻迪机器人有限公司 | Underwater unmanned ship communication system |
| CN106781371A (en) * | 2016-12-06 | 2017-05-31 | 北京臻迪科技股份有限公司 | A kind of communication system of unmanned boat under water |
Non-Patent Citations (1)
| Title |
|---|
| 何明等: "《水声传感器网络拓扑》", 30 April 2019 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113473620A (en) * | 2021-06-16 | 2021-10-01 | 深圳零壹空间电子有限公司 | Dynamic time slot allocation method, device, computer equipment and readable storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101523104B1 (en) | Method and device for time synchronization in a tdma multi-hop wireless network | |
| US7349362B2 (en) | Method and system for implementing the time division multiple access method to AD-HOC multihopping wireless networks | |
| US8279897B2 (en) | Synchronization in a wireless node | |
| US7860040B2 (en) | Distributed synchronization method and system | |
| JP4509921B2 (en) | Wireless communication system and wireless communication method | |
| JP5375195B2 (en) | Optical multiplex transmission system, precision time synchronization device, transmission control signal generation device, and precise time synchronization method in optical multiplex transmission system | |
| JP2012130055A (en) | Base station synchronization system for wireless communication systems | |
| CA2490258A1 (en) | A system and method for correcting the clock drift and maintaining the synchronization in wireless networks | |
| JP2008283673A (en) | Synchronization and timing source priority in ad-hoc network | |
| WO2020043181A1 (en) | Clock synchronization method and apparatus, system, storage medium, and electronic device | |
| CN103595494B (en) | A kind of non-stop layer time division multiple access synchronous method being applicable to wireless self-networking | |
| CA2936249C (en) | System and method for time adjustment in a time synchronized channel hopping network | |
| JP4536771B2 (en) | Apparatus for synchronizing a first transmitting or receiving device to a second transmitting or receiving device | |
| Krummacker et al. | Intra-network clock synchronization for wireless networks: From state of the art systems to an improved solution | |
| CN105846884A (en) | Network communication method applicable to space-based network | |
| CN110536454A (en) | Network slot division methods and device | |
| CN101998192A (en) | Method and system for time synchronization on passive optical network | |
| KR20200033627A (en) | Apparatus and Method for Compensating Delay on Front-Hall Period of Distributed Node System | |
| CN107801209B (en) | Wireless ad hoc network communication method and node | |
| Allard et al. | Fully distributed clock synchronization in wide-range TDMA ad-hoc networks | |
| Fontanelli et al. | Master-less time synchronization for wireless sensor networks with generic topology | |
| CN113473626B (en) | Multi-user ranging method and system for wireless self-organizing network | |
| Li et al. | Research on medium access control of mobile ad hoc network based on frequency hopping communication | |
| CN107659368B (en) | A kind of synchronizer and synchronous method of handheld communication devices | |
| Wehbi et al. | Efficient time synchronization mechanism for wireless multi hop networks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: B1203-1204, Shenzhen national engineering laboratory building, 20 Gaoxin South 7th Road, Gaoxin community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Applicant after: SMART OCEAN TECHNOLOGY CO.,LTD. Address before: Room 01, 11th floor, Sanhang science and technology building, Northwest University of technology, Gaoxin South 9th Road, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Applicant before: SMART OCEAN TECHNOLOGY CO.,LTD. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191203 |