CN109600824B - Node address coding method, wireless communication system and the equipment of wireless communication system - Google Patents
Node address coding method, wireless communication system and the equipment of wireless communication system Download PDFInfo
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- CN109600824B CN109600824B CN201910031328.2A CN201910031328A CN109600824B CN 109600824 B CN109600824 B CN 109600824B CN 201910031328 A CN201910031328 A CN 201910031328A CN 109600824 B CN109600824 B CN 109600824B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/0055—ZCZ [zero correlation zone]
- H04J13/0059—CAZAC [constant-amplitude and zero auto-correlation]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/0055—ZCZ [zero correlation zone]
- H04J13/0059—CAZAC [constant-amplitude and zero auto-correlation]
- H04J13/0062—Zadoff-Chu
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2662—Symbol synchronisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2668—Details of algorithms
- H04L27/2673—Details of algorithms characterised by synchronisation parameters
- H04L27/2675—Pilot or known symbols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0024—Carrier regulation at the receiver end
- H04L2027/0026—Correction of carrier offset
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
This application involves node address coding method, wireless communication system and the equipment of a kind of wireless communication system.This method comprises: when being in wake-up detecting state from node, it receives the wake-up code character that host node is sent and closes packet, waking up code character and closing packet includes the first address code combination packet and the second address code combination packet, first address code combination packet includes multiple first address codes, first address code includes the first lead code and the second lead code, and the second address code combination packet includes multiple second address codes；The wake-up code character sent from nodal test host node closes the first lead code and the second lead code of the first address code in packet；When detecting successfully from the first lead code of nodal test and the second lead code, then the frequency expansion sequence of the second address code is continued to test；When detecting successfully from the frequency expansion sequence of the second address code of nodal test, then enter formal wake-up states from node from detecting state is waken up, and receive the data of host node transmission.Using this method, power consumption can be saved.
Description
Technical field
This application involves internet of things field, more particularly to a kind of node address coding staff of wireless communication system
Method, wireless communication system and equipment.
Background technique
With the fast development of technology of Internet of things, in every field using more and more extensive, and wireless communication technique
As one of Internet of Things Primary communication technology, application is also more and more extensive, therefore, in the increasingly extensive application of wireless communication technique
In, very high requirement is proposed to low-power consumption, the remote transmission etc. of wireless communication system.General wireless communication system master
It multiple to form by a host node and from node.
In traditional technology, wireless communication system reduces power consumption using periodic awakening mechanism, from node in wake-up period
After automatically waking up, prepare to receive data.When finding that received data is not belonging to itself and to receive when receiving data from node
Data when, extra wake-up can be led to the problem of, when the slave node in wireless communication system is more, frequent extra wake-up
The average power consumption that node will be greatly increased leads to the power consumption for increasing wireless communication system.
Summary of the invention
Based on this, it is necessary in view of the above-mentioned problems, providing the node address coding method of a kind of wireless communication system, wireless
Communication system and equipment.
In a first aspect, the embodiment of the present application provides a kind of node address coding method of wireless communication system, the method
Include:
When being in wake-up detecting state from node, receives the wake-up code character that host node is sent and close packet, the wake-up code character conjunction
Packet is the host node when there is communication requirement, is sent within the preset time, and the wake-up code character closes packet including the first
Location code character closes packet and the second address code combination packet, and first address code combination packet includes multiple first address codes, and described first
Address code includes the first lead code and the second lead code, and first lead code is permanent envelope zero auto-correlation sequence, and described second
Lead code is the conjugate sequence of first lead code, and the second address code combination packet includes multiple second address codes, described
For second address code using a frequency expansion sequence in pseudorandom spreading sequence code character, the time of the first address code combination packet is long
Spend identical with the time span of second address code, first address code and the second address code are collectively as described from node
Address code, the preset time is greater than from the wake-up period of node, it is described from the wake-up period of node be one from node
Detection time and the sum of dormancy time；
It is described from host node described in nodal test send wake-ups code character close wrap in the first address code the first lead code with
And second lead code；
When it is described detected successfully from the first lead code described in nodal test and the second lead code when, then continue to test institute
State the frequency expansion sequence of the second address code；
It is when the frequency expansion sequence from the second address code described in nodal test detects successfully, then described from node from described
It wakes up detecting state and enters formal wake-up states, and receive the data of host node transmission.
The generating mode for waking up code character conjunction packet includes: in one of the embodiments,
By first address code combination packet and preset first multiplied by gains, the first address code character of the first gain is obtained
Close packet；
By second address code combination packet and preset second multiplied by gains, the second address code character of the second gain is obtained
Close packet；
The first address code combination packet of first gain is added with the second address code of second gain combination packet,
Address code after being synthesized combines packet；
Address code combination packet after the synthesis is sampled, filtered, digital-to-analogue conversion and frequency-conversion processing, is obtained described
It wakes up code character and closes packet.
In one of the embodiments, it is described from the first lead code described in nodal test and the second lead code detect at
The mode of function, comprising:
It is greater than preset first lead code correlation from the correlation peaks of the first lead code described in nodal test when described
Peak value, and, it is greater than preset second lead code correlation from the correlation peaks of the second lead code described in nodal test when described
When being worth peak value, it is determined that it is described to detect success from the first lead code described in nodal test and the second lead code, then continue to examine
Survey the frequency expansion sequence of second address code；
It is not more than preset second ground from the correlation peak of the frequency expansion sequence of the second address code described in nodal test when described
When the correlation peak of the frequency expansion sequence of location code, it is determined that the frequency expansion sequence of second address code detects failure, described from node
Into dormant state.
It is described in one of the embodiments, to detect successfully side from the frequency expansion sequence of the second address code described in nodal test
Formula, comprising:
When the correlation peak of the frequency expansion sequence of second address code from node is greater than the expansion of preset second address code
When the correlation peak of frequency sequence, it is determined that the frequency expansion sequence of second address code detects successfully.
It is described before the frequency expansion sequence for continuing to test second address code in one of the embodiments, the side
Method further include:
Calculate the host node and frequency departure and sign synchronization deviation from node, and using the frequency departure and
To receiving, signal carries out frequency departure compensation deals to the sign synchronization deviation and sign synchronization deviation compensation is handled, the reception
Signal is that the wake-up code character that the host node is sent closes packet and data.
In one of the embodiments, the method also includes:
Position of current second address code from node in second address code combination packet is calculated, and is calculated
The residual time length of second address code combination packet out, and make described to receive main section again after residual time length described in node dormancy
The data that point is sent.
In one of the embodiments, the method also includes:
When more from node, each frequency expansion sequence in the pseudorandom spreading sequence code character is followed with preset length
Ring displacement, the pseudo-random sequence code character after being expanded, and by each spread spectrum in the pseudo-random sequence code character after the expansion
Sequence is as each from the second address code of node.
Second aspect, the embodiment of the present application provide a kind of wireless communication system, including a host node and multiple from node,
At the host node and the node that any of the above-described wireless communication system may be implemented in communication process from node
Reason method.
The third aspect, the embodiment of the present application provide a kind of computer equipment, comprising: memory and processor, the storage
Device is stored with computer program, and the processor performs the steps of when executing the computer program
When being in wake-up detecting state from node, receives the wake-up code character that host node is sent and close packet, the wake-up code character conjunction
Packet is the host node when there is communication requirement, is sent within the preset time, and the wake-up code character closes packet including the first
Location code character closes packet and the second address code combination packet, and first address code combination packet includes multiple first address codes, and described first
Address code includes the first lead code and the second lead code, and first lead code is permanent envelope zero auto-correlation sequence, and described second
Lead code is the conjugate sequence of first lead code, and the second address code combination packet includes multiple second address codes, described
For second address code using a frequency expansion sequence in pseudorandom spreading sequence code character, the time of the first address code combination packet is long
Spend identical with the time span of second address code, first address code and the second address code are collectively as described from node
Address code, the preset time is greater than from the wake-up period of node, it is described from the wake-up period of node be one from node
Detection time and the sum of dormancy time；
It is described from host node described in nodal test send wake-ups code character close wrap in the first address code the first lead code with
And second lead code；
When it is described detected successfully from the first lead code described in nodal test and the second lead code when, then continue to test institute
State the frequency expansion sequence of the second address code；
It is when the frequency expansion sequence from the second address code described in nodal test detects successfully, then described from node from described
It wakes up detecting state and enters formal wake-up states, and receive the data of host node transmission.
Fourth aspect, the embodiment of the present application provide a kind of computer readable storage medium, are stored thereon with computer program,
The computer program performs the steps of when being executed by processor
When being in wake-up detecting state from node, receives the wake-up code character that host node is sent and close packet, the wake-up code character conjunction
Packet is the host node when there is communication requirement, is sent within the preset time, and the wake-up code character closes packet including the first
Location code character closes packet and the second address code combination packet, and first address code combination packet includes multiple first address codes, and described first
Address code includes the first lead code and the second lead code, and first lead code is permanent envelope zero auto-correlation sequence, and described second
Lead code is the conjugate sequence of first lead code, and the second address code combination packet includes multiple second address codes, described
For second address code using a frequency expansion sequence in pseudorandom spreading sequence code character, the time of the first address code combination packet is long
Spend identical with the time span of second address code, first address code and the second address code are collectively as described from node
Address code, the preset time is greater than from the wake-up period of node, it is described from the wake-up period of node be one from node
Detection time and the sum of dormancy time；
It is described from host node described in nodal test send wake-ups code character close wrap in the first address code the first lead code with
And second lead code；
When it is described detected successfully from the first lead code described in nodal test and the second lead code when, then continue to test institute
State the frequency expansion sequence of the second address code；
It is when the frequency expansion sequence from the second address code described in nodal test detects successfully, then described from node from described
It wakes up detecting state and enters formal wake-up states, and receive the data of host node transmission.
Node address coding method, wireless communication system and the equipment of above-mentioned wireless communication system, are being called out from node first
When detecting state of waking up, receives the wake-up code character that host node is sent and close packet, it is that host node is having communication requirement which, which closes packet,
When, it is sent within the preset time, it includes that the first address code combines packet and the second address code combination packet which, which closes packet,
First address code combination packet includes multiple first address codes, which includes the first lead code and the second lead code, is somebody's turn to do
First lead code is permanent envelope zero auto-correlation sequence, and the second lead code is the conjugate sequence of the first lead code, above-mentioned second address
It includes multiple second address codes that code character, which closes packet, and second address code is using a spread spectrum sequence in pseudorandom spreading sequence code character
Column, above-mentioned first address code and the second address code are collectively as from address of node code；Wherein, above-mentioned first address code combination packet
Time span and the second address code combination packet time span it is identical, the above-mentioned preset time is greater than the wake-up week from node
Phase, to guarantee each at least can once be in wake-up detecting state in wake-up period from node, so as to detect
The wake-up code character that host node is sent closes packet.It then, can be with from node after receiving the wake-up code character that host node is sent and closing packet
First to wake up code character close packet in the first address code the first lead code and the second lead code detect, first lead code with
And second lead code the frequency expansion sequence of the second address code should be continued to test from node when detecting successfully, and in the second address code
Frequency expansion sequence when detecting successfully, formal wake-up states should be entered from node, and receive data that host node is sent.In the present embodiment
In, due within the time of detection two permanent envelope zero auto-correlation sequences, can be completed from node to the first address code and second
The matching of address code is assured that out that host node needs to send the slave node of data, to make to examine in a relatively short period of time
It surveys and successfully enters formal wake-up states from node and receive data, and other then enter suspend mode shape when detecting failure from node
State, therefore extra wake-up will not be generated, it would not also increase the power consumption from node, therefore, the method for the present embodiment can be one
Determine to reduce the power consumption from node in degree.In addition, since the method for the present embodiment is to utilize the first address code and the second address code
Collectively as from address of node code, and the first address code and the second address code are different, and respective quantity is again very much, therefore, benefit
It is available more from address of node code with the method for the present embodiment, so that in the occasion many from node number
When, this method can also be applied, and improve the universality of this method.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the wireless communication system that one embodiment provides；
Fig. 2 is the flow diagram of the node address coding method for the wireless communication system that one embodiment provides；
Fig. 3 is to wake up code character in one embodiment in the node address coding method of wireless communication system to close packet composition signal
Figure；
Fig. 4 is the signal in one embodiment in the node address coding method of wireless communication system from node periodic awakening
Figure；
Fig. 5 is the generation side for waking up code character in one embodiment in the node address coding method of wireless communication system and closing packet
The flow diagram of formula；
Fig. 6 is the generation side for waking up code character in one embodiment in the node address coding method of wireless communication system and closing packet
The structural schematic diagram of formula；
Fig. 7 is that the second address code combines the another of packet in the node address coding method of wireless communication system in one embodiment
A kind of composition schematic diagram；
Fig. 8 is the flow diagram of the node address coding method for the wireless communication system that one embodiment provides；
Fig. 9 is the computer equipment structural schematic diagram that one embodiment provides.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
The node address coding method of wireless communication system provided by the embodiments of the present application, can be adapted for shown in FIG. 1
Wireless communication system.As shown in Figure 1, the wireless communication system includes a host node 101 and multiple from node 102.Wherein, main
Node 101 can be cloud server, remote server etc., can be various personal computers, notebook electricity from node 102
Brain, smart phone, tablet computer, computer equipment etc., concrete form of the application to host node 101 and from node 102 is not
It limits；Wherein, above-mentioned host node 101 can carry out wireless or wired data transfer from node 102 with multiple.
In traditional technology, in order to reduce the power consumption of wireless communication system, general wireless communication system is using being the period
Wake-up mechanism, detailed process are as follows: when host node is needed to when sending data from node, adding a length before data can cover
The targeting signal of lid wake-up period, it is each from node in wake-up period sometime, automatically wake up and detect targeting signal,
After detecting targeting signal, notice prepares to receive data from node, if targeting signal is not detected, enters suspend mode.
But the above method formally wakes up from node after detecting targeting signal and prepares to receive data, when this is being received from node
When finding that received data belongs to other nodes when data, then extra wake-up can be led to the problem of；And work as wireless communication system
In slave node it is more when, frequent extra wake-up will greatly increase the average power consumption of node, and then increase channel radio
The power consumption of letter system.The node address coding method of wireless communication system provided by the embodiments of the present application, wireless communication system and
Equipment, it is intended to solve the technical problem as above of traditional technology.
It is described in detail below with technical solution of the specifically embodiment to the application.These specific implementations below
Example can be combined with each other, and the same or similar concept or process may be repeated no more in certain embodiments.Following methods
Embodiment is illustrated so that executing subject is from node as an example.
Fig. 2 is the flow diagram of the node address coding method for the wireless communication system that one embodiment provides.This reality
Example is applied what is involved is packet is closed from the node wake-up code character how based on the received host node is sent, Bao Jinhang is closed to the wake-up code character
Detection, finally formally to wake up from node, receives the detailed process for the data that host node is sent.As shown in Fig. 2, this method can
With the following steps are included:
S201 when being in wake-up detecting state from node, receives the wake-up code character that host node is sent and closes packet, the wake-up code
Combination packet is the host node when there is communication requirement, is sent within the preset time, and the wake-ups code character closes packet and includes the
One-address code combination packet and the second address code combination packet, the first address code combination packet includes multiple first address codes, described
First address code includes the first lead code and the second lead code, and first lead code is permanent envelope zero auto-correlation sequence, described
Second lead code is the conjugate sequence of first lead code, and the second address code combination packet includes multiple second address codes,
Second address code using a frequency expansion sequence in pseudorandom spreading sequence code character, the first address code combination packet when
Between length it is identical with the time span of second address code, first address code and the second address code collectively as it is described from
Address of node code, the preset time are greater than from the wake-up period of node, it is described from the wake-up period of node be one from
The sum of detection time and dormancy time of node.
It is referred to from node when automatically waking up specifically, waking up detecting state, host node hair is detected in wake-up period
The wake-up code character sent closes state when packet；Automatically wake up the state for referring to and capable of detecting but cannot receive data.The host node is sent
Wake-up code character close packet as shown in figure 3, the wake-up code character close packet include the first address code combination packet and the second address code combination packet,
Wherein, what the time span and the combination of the second address code that the time span and the combination of the first address code for waking up code character conjunction packet are wrapped were wrapped
Time span is identical, is Tw, and the C1 in Fig. 3 is the first lead code, is permanent envelope zero auto-correlation sequence, and C2 is second leading
Code, be C1 conjugate sequence, C1 and C2 constitute a base unit of the first address code combination packet.Optionally, the perseverance envelope
Zero auto-correlation sequence can be generated by Coordinate Rotation Digital calculator, which can be any one
CAZAC (Constant Amplitude Zero Auto Correlation) sequence, is also possible to Zadoff-Chu sequence
(i.e. ZC sequence), Frank sequence, Golomb multiphase sequence, Chirp sequence etc..In addition, the g in Fig. 3 is the combination of the second address code
Second address code in packet is a frequency expansion sequence in pseudorandom spreading sequence code character, and optionally, which expands
Frequency sequence code character can be generated by linear shift register, pseudo-random generator etc., which can be
Gold sequence code character, m-sequence code character etc..Above-mentioned first address code and the second address code are collectively as one from address of node
Code, by taking k is from node as an example, when above-mentioned host node needs to send data to k from node, above-mentioned C1, C2 and g collectively as k from
Address of node code.Optionally, C1 and C2 is properly termed as leading address code, and g is properly termed as user group address code.With leading address
Number of codes is K1, user group address number of codes is that K2 citing is illustrated, and carries out group in leading address code and user group address code
After conjunction, available quantity is up to the slave node address code of K, wherein K=K1K2, that is to say, that before the K1
The combination of address code and K2 user group address code is led, at most can be used as K from address of node code.
Wherein, can be from the quantity of node it is multiple and each identical from the wake-up period of node, as shown in figure 4, wake up
Cycle T is equal to and each adds sleep time from the detection duration of node, and the Td in Fig. 4 is the detection duration from node, i.e., from node
After automatically waking up, the primary time for waking up code is detected, Tslp is the sleep time from node in a wake-up period.?
Host node and from the communication process of node can be worked alternatively according to above-mentioned wake-up period in detection-suspend mode-spy from node
Survey-suspend mode.It, can be to the wake-up code for sending above-mentioned composition from node within the preset time when host node is when there is communication requirement
Combination packet, wherein the preset time is the time span Tw for waking up code character and closing packet, is called out in addition, the preset time needs to be greater than
Awake cycle T, to guarantee each at least can once be in wake-up detecting state in wake-up period from node, so as to examine
The wake-up code character for measuring host node transmission closes packet.
S202, the wake-ups code character sent from host node described in nodal test is closed wrap in the first address code it is first leading
Code and the second lead code.
Specifically, should be in from node for waking up detecting state with the slave node of a current awake, it should be from node
When the wake-up code character for receiving host node transmission is closed, the wake-up code of two the first preamble sequence length can be taken, and by its
It is input in address code adaptation, carries out frequency domain detection processing or right respectively to it respectively using two different local signals
It carries out tim e- domain detection processing, can be obtained by two different correlation peaks from node, one of them is the first lead code
Correlation peaks, another be the second lead code correlation peaks.Optionally, the above-mentioned host node of above-mentioned detection is sent
The mode of the first preamble signal and the second preamble signal in first address code combination packet, may include: using single
At least one of correlator, correlator array, time-domain matched filters, frequency matched filter detect the host node hair
The first preamble signal and the second preamble signal in the first address code combination packet sent.
S203, when it is described detected successfully from the first lead code described in nodal test and the second lead code when, then continue
Detect the frequency expansion sequence of second address code.
Specifically, from node the correlation peaks and the second lead code that obtain the first lead code correlation peaks it
Afterwards, can by the correlation peaks of the correlation peaks of first lead code and the second lead code respectively with preset correlation
Peak value compares, in a kind of possible embodiment, when the above-mentioned correlation peak from above-mentioned first lead code of nodal test
Value is greater than preset first lead code correlation peaks, and, when the above-mentioned correlation from above-mentioned second lead code of nodal test
Peak value be greater than preset second lead code correlation peaks when, then can determine it is above-mentioned from above-mentioned first lead code of nodal test with
And second lead code detect success, then the frequency expansion sequence of above-mentioned second address code can be continued to test from node；In another kind
In possible embodiment, when it is above-mentioned from the correlation peaks of above-mentioned first lead code of nodal test no more than before preset first
Leading code correlation peaks, alternatively, when it is above-mentioned from the correlation peaks of above-mentioned second lead code of nodal test no more than preset the
When two lead code correlation peaks, then it can determine above-mentioned from above-mentioned first lead code of nodal test and the second preamble detection
Failure, then it is above-mentioned to enter dormant state from node.Optionally, above-mentioned preset first lead code correlation peaks and preset
Two lead code correlation peaks may be the same or different, and the present embodiment does not limit this.
S204, it is when the frequency expansion sequence from the second address code described in nodal test detects successfully, then described from node
Enter formal wake-up states from the wake-up detecting state, and receives the data of host node transmission.
Wherein, formal wake-up states refer to the state that can receive the data of transmission.From node to second address code
When being detected, optionally, above-mentioned the second address code that a spreading sequence length can be taken from node, and it is input to ground
It is handled in the code adaptation of location, obtains the correlation peak of the frequency expansion sequence of second address code, which is above-mentioned
It is detected in the time of two permanent envelope zero auto-correlation sequences.This is obtaining the frequency expansion sequence of the second address code from node
It, can be by the spread spectrum sequence of the correlation peak of the frequency expansion sequence of second address code and preset second address code after correlation peak
The correlation peak of column compares, and is assured that the inspection from node to the frequency expansion sequence of second address code according to comparing result
It surveys and whether succeeds.In a kind of possible embodiment, when the spread spectrum sequence of the second address code of the slave node of above-mentioned current awake
When the correlation peak of column is not more than the correlation peak of the frequency expansion sequence of preset second address code, it is determined that above-mentioned second address code
Frequency expansion sequence detect failure, it is above-mentioned to enter dormant state from node.In alternatively possible embodiment, when above-mentioned current
The correlation peak of the frequency expansion sequence of second address code of the slave node waken up is greater than the frequency expansion sequence of preset second address code
When correlation peak, it is determined that the frequency expansion sequence of above-mentioned second address code detects successfully.Optionally, address above mentioned code adaptation can be with
It is single correlator, correlator array, time-domain matched filters, frequency matched filter etc., the present embodiment does not limit this.
Specifically, including waking up code character to close packet and data from the signal that the received host node of node is sent.Above-mentioned S203
In from node when waking up detecting state and determining that the frequency expansion sequence of the second address code detects successfully, that is, be assured that this from node
The slave node of transmission data is wanted for host node, then should can enter formal wake-up states from node, and in above-mentioned wake-up code
Combination packet be sent completely after, start receive host node send data, has received host node transmission data after, be somebody's turn to do from
Node can be again introduced into dormant state.
The node address coding method of wireless communication system provided in this embodiment is waking up detecting state from node first
When, it receives the wake-up code character that host node is sent and closes packet, it is host node when there is communication requirement which, which closes packet, preset
It is sent in time, it includes the first address code combination packet and the second address code combination packet, the first address code which, which closes packet,
Combination packet includes multiple first address codes, which includes the first lead code and the second lead code, first lead code
For permanent envelope zero auto-correlation sequence, the second lead code is the conjugate sequence of the first lead code, and above-mentioned second address code combines packet
Multiple second address codes are included, second address code is using a frequency expansion sequence in pseudorandom spreading sequence code character, and above-mentioned first
Address code and the second address code are collectively as from address of node code；Wherein, the time span of above-mentioned first address code combination packet
Identical with the time span of the second address code combination packet, the above-mentioned preset time is greater than the wake-up period from node, every to guarantee
It is a to be at least once in wake-up detecting state in wake-up period from node, so as to detect what host node was sent
It wakes up code character and closes packet.It then, can be first to wake-up code character from node after receiving the wake-up code character that host node is sent and closing packet
It closes the first lead code of the first address code and the second lead code in packet to be detected, in first lead code and the second lead code
When detecting successfully, the frequency expansion sequence of the second address code should be continued to test from node, and examine in the frequency expansion sequence of the second address code
When surveying successfully, formal wake-up states should be entered from node, and receive the data that host node is sent.In the present embodiment, due to from section
To the first address code and the second address code can be completed within the time of detection two permanent envelope zero auto-correlation sequences in point
Match, i.e., be assured that out that host node needs to send the slave node of data in a relatively short period of time, thus make detection successfully from
Node enters formal wake-up states and receives data, and other then enter dormant state when detecting failure from node, therefore not
Extra wake-up can be generated, the power consumption from node would not be also increased, therefore, the method for the present embodiment can drop to a certain extent
The low power consumption from node.In addition, due to the method for the present embodiment be using the first address code and the second address code collectively as from
Address of node code, and the first address code and the second address code difference, respective quantity are again very much, therefore, utilize the present embodiment
Method, it is available more from address of node code, so that when from node number many occasions, this method
It can be applicable in, improve the universality of this method.
Fig. 5 is to wake up code character in the node address coding method for the wireless communication system that another embodiment provides to close packet
The flow diagram of generating mode.What is involved is one kind from the received generating mode for waking up code character conjunction packet of node for the present embodiment
Possible embodiment.On the basis of the above embodiments, as shown in figure 5, the generating mode that above-mentioned wake-up code character closes packet can be with
The following steps are included:
First address code combination packet and preset first multiplied by gains are obtained the first ground of the first gain by S501
Location code character closes packet.
It should be noted that the generating mode that the wake-up code character of the present embodiment closes packet is to from the received wake-up code character of node
A kind of limited way of packet is closed, the present embodiment will be illustrated using host node as executing subject, still, host node and from node
Be it is opposite, in different scenes, host node is also possible to from node, and is also possible to host node from node.
Wherein, the first address code combination packet can be the first address code combination packet for pre-setting that time span is Tw,
First gain refers to amplification factor, refers to the journey that the power for the first address code combining packet amplifies in the present embodiment
Degree；Optionally, wireless communication system can preset multiple first yield values, in the function for needing to combine the first address code packet
When rate is adjusted, it can be selected in multiple first yield value, the first gain needed.
It is multiplied, obtains with the first gain needed specifically, host node can above-mentioned first address code combine packet
The the first address code combination packet for meeting first gain is denoted as the first address code combination packet of the first gain.
Second address code combination packet and preset second multiplied by gains are obtained the second ground of the second gain by S502
Location code character closes packet.
Wherein, the second address code combination packet is also possible to pre-set the second address code combination that time span is Tw
Packet, the second gain refer to amplification factor, refer to that the power for combining the second address code packet amplifies in the present embodiment
Degree；Optionally, wireless communication system can preset multiple second yield values, wrap needing to combine the second address code
Power when being adjusted, can be selected in multiple second yield value, the second gain needed.Optionally,
Above-mentioned first gain can be identical with the size of the second gain, can not be limited this with difference, the present embodiment.
It is multiplied, obtains with the second gain needed specifically, host node can above-mentioned second address code combine packet
The the second address code combination packet for meeting second gain is denoted as the second address code combination packet of the second gain.
S503 the second address code of the first address code combination packet of first gain and second gain combines packet
It is added, the address code after being synthesized combines packet.
Specifically, host node is in the second address of the first address code combination packet and the second gain that obtain above-mentioned first gain
After code character closes packet, the two can be added, address code combination packet after being added.
By taking the first address code combination packet and the second address code combination packet in above-mentioned Fig. 3 as an example, by the of the first gain
When one-address code combination packet is added with the second address code of the second gain combination packet, it can be to combine the first address code and wrap
In the g that is combined multiplied by the first gain with the second address code in packet on corresponding position of C1 be added multiplied by the second gain, and, first
C2 in address code combination packet combines the g in packet on corresponding position multiplied by the first gain multiplied by the second gain phase with the second address code
Add.In addition, Fig. 6 is the structural schematic diagram for waking up the generating mode that code character closes packet, as shown in fig. 6, when g and C1 and C2 is multiple
When number, when being added, the real part that can be C1 is added with the real part of g multiplied by the second gain multiplied by the first gain, the real part of C2 multiplies
It is added with the real part of g multiplied by the second gain with the first gain, the imaginary part of C1 is multiplied by the imaginary part of the first gain and g multiplied by the second gain
It is added, the imaginary part of C2 is added with the imaginary part of g multiplied by the second gain multiplied by the first gain；When it is plural number that g, which is real number, C1 and C2,
When being added, the real part that can be C1 is added with g multiplied by the second gain multiplied by the first gain, the real part of C2 multiplied by the first gain and
G is added multiplied by the second gain, and the present embodiment does not limit this.
S504 is sampled, is filtered to the address code combination packet after the synthesis, digital-to-analogue conversion and frequency-conversion processing, obtained
It closes and wraps to the wake-up code character.
Specifically, host node can combine the address code after obtaining the combination packet of the address code after above-mentioned synthesis and wrap
It is handled, which, which can be, first samples the address code combination packet after synthesis, filters, the number after obtaining sampling filter
Then word signal carries out digital-to-analogue conversion to the digital signal, obtains analog signal, finally carry out at frequency conversion to the analog signal
Reason obtains above-mentioned wake-up code character and closes packet, and after obtaining waking up code character conjunction packet, which can be closed packet transmitting by host node
To from node.
Optionally, as shown in fig. 6, the process that the above-mentioned address code combination packet to after synthesis is sampled, filtered, can be
Digital front-end carry out, it is above-mentioned to digital signal carry out digital-to-analogue conversion, can be AFE(analog front end) carry out, it is above-mentioned to simulation
The frequency conversion combing that signal carries out, can be and carry out on radio frequency, the modulation system of the radio frequency can be polarization modulation, positive intermodulation
System etc., above-mentioned transmitting wake up code character and close packet, can be what sampling antenna was emitted.
The node address coding method of wireless communication system provided in this embodiment, first by the first address code combination packet with
Preset first multiplied by gains, the first address code for obtaining the first gain combine packet, then by the second address code combination packet and in advance
If the second multiplied by gains, obtain the second gain the second address code combination packet, then by the first address code character of the first gain
The the second address code combination packet for closing packet and the second gain is added, and the combination of address code after being synthesized is wrapped, finally to synthesis after
Address code combination packet sampled, filtered, digital-to-analogue conversion and frequency-conversion processing, is obtained waking up code character and is closed packet.In the present embodiment,
The gain of packet is combined in gain and the second address code due to adjustable first address code combination packet, it can make final
The power distribution that obtained wake-up code character closes packet is more suitable.
In another embodiment, what is involved is the first lead codes from the first address code described in nodal test for the present embodiment
When detecting successfully with the second lead code, before the frequency expansion sequence for continuing to test second address code, the collection of letters how is docked
Number carry out frequency departure compensation deals and sign synchronization deviation compensation processing detailed process.On the basis of the above embodiments,
The method also includes:
Calculate the host node and frequency departure and sign synchronization deviation from node, and using the frequency departure and
To receiving, signal carries out frequency departure compensation deals to the sign synchronization deviation and sign synchronization deviation compensation is handled, the reception
Signal is that the wake-up code character that the host node is sent closes packet and data.
Specifically, from node to the first address code the first lead code and the second lead code detect when, can also be with
Obtain host node and frequency departure and sign synchronization deviation from node, wherein frequency departure be host node and from node when
Clock deviation and the two frequency departure caused by the factors such as Doppler's deviation during wireless transmission, by the frequency departure knot
It closes in the frequency for receiving signal, that is, can compensate for host node and the frequency departure from node；The above-mentioned sign synchronization deviation of benefit is
The initial position for receiving signal can be found, so as to compensate host node and from the sign synchronization deviation between node.Later, from
Node can carry out the second address code detection to compensated reception signal.
The node address coding method of wireless communication system provided in this embodiment, wherein detecting above-mentioned the from node
When the first lead code and the second lead code of one-address code are detected successfully, host node and the frequency from node can also be calculated
Deviation and sign synchronization deviation, and reception signal is carried out at frequency departure compensation deals and sign synchronization deviation compensation accordingly
Reason, wherein receiving signal is that the wake-up code character that host node is sent closes packet and data.Using the method for the present embodiment, may be implemented
Host node and from the Frequency Synchronization and sign synchronization between node, so that it is more acurrate to receive data from node.
In another embodiment, the present embodiment what is involved is from node how according to current second address code the second
Location code character closes the position in packet, so that receiving the detailed process of data again for a period of time from node dormancy.In above-described embodiment
On the basis of, the above method can also include:
Position of current second address code from node in second address code combination packet is calculated, and is calculated
The residual time length of second address code combination packet out, and make described to receive main section again after residual time length described in node dormancy
The data that point is sent.
Specifically, another constructive method of the second address code combination packet is provided in the present embodiment, as shown in fig. 7, false
If the second address code combination packet in have n base unit, then g1, g2 in Fig. 7,., gn be second ground from node
Location code is a frequency expansion sequence in pseudorandom spreading sequence code character, and the time span of second address code combination packet is also Tw.
By taking second address code from node is made of tetra- letters of a, b, c, d as an example, wherein g1 abcd, g2 are
Bcda, g3 cdab, g4 dabc, g1, g2, g3, g4 are second address code from node, wherein g2 is that g1 is followed
What ring obtained after shifting 1, g3 is that g1 obtain after cyclic shift 2, and g4 is that g1 is carried out after cyclic shift 3
It obtaining, combines the second address code in packet for g1, g2, g3, the g4 as above-mentioned second address code, the position of g1 is 1,
The position that the position that the position of g2 is 2, g3 is 3, g4 is 4.From node carry out the second address code detect when, according to g1, g2,
The position of g3, g4 in the second address code combination packet, so that it may obtain current second address code in the second address code combination packet
Position.
For obtaining current second address code and be m in the position in the second address code combination packet, then it can be counted from node
A length of Trem when the combination of the second address code wraps remaining is calculated, such as formula (1) Trem=Tw- (mono- symbol time of m),
In, the time of a symbol is the duration of a permanent envelope zero auto-correlation sequence and/or the frequency expansion sequence of second address code
Duration, the duration of a permanent envelope zero auto-correlation sequence is equal to the duration of the frequency expansion sequence of second address code.It is obtaining
After residual time length Trem, second address code detection can be made successfully from node elder generation suspend mode Trem duration, received again later
The data that host node is sent.
The node address coding method of wireless communication system provided in this embodiment, wherein propose the second address code character
Close another constructive method of packet, wherein current second address code from node can be calculated in second address from node
Code character closes the position in packet, and calculates the residual time length of second address code combination packet, so as to so that should be from node dormancy
The data of host node transmission are received after one residual time length again.In the present embodiment, due to detecting the second address from node
After code success, the residual time length that can use calculated second address code combination packet carries out intersexuality ground suspend mode sometimes, in main section
The data that point is sent automatically wake up received again when arriving, thus the method for the present embodiment can save to a certain extent from
The power consumption of node.
In another embodiment, the present embodiment is what is involved is the pseudo-random sequence code character how expanded from node,
And as the detailed process of each the second address code from node.On the basis of the above embodiments, the above method may be used also
To include:
When more from node, each frequency expansion sequence in the pseudorandom spreading sequence code character is followed with preset length
Ring displacement, the pseudo-random sequence code character after being expanded, and by each spread spectrum in the pseudo-random sequence code character after the expansion
Sequence is as each from the second address code of node.
Specifically, preset length can be Any Digit, as long as the length for being no more than the frequency expansion sequence of the second address code is
Can, the present embodiment does not limit this.By taking length is 2047 Gold sequence as an example, the sequence with 2049 frequency expansion sequences
Group, each Gold frequency expansion sequence carry out cyclic shift with interval 4,510 Gold frequency expansion sequences can be at least extended to, after expansion
The quantity of Gold frequency expansion sequence is 1044990.
The node address coding method of wireless communication system provided in this embodiment, when more from node, the pseudorandom
Each frequency expansion sequence in spread spectrum sequence code group can carry out cyclic shift with preset length, the pseudo-random sequence after being expanded
Code character, each frequency expansion sequence in pseudo-random sequence code character after the expansion can be used as each the second address code from node.
Using the method for the present embodiment, the quantity of pseudo-random sequence code character can be expanded significantly, so that when more from node, the second address
The frequency expansion sequence of code is also able to satisfy requirement, expands the applicability of the method for the present embodiment.
For the ease of the understanding of those skilled in the art, below to the node address of wireless communication system provided by the invention
Coding method describes in detail, as shown in figure 8, this method may include:
S801 closes packet from node in the wake-up code character for receiving host node transmission, to the first lead code of the first address code
It is detected with the second lead code.
S802 judges whether it is that the correlation peaks of the first lead code are greater than the correlation peak of preset first lead code
The correlation peaks of value and the second lead code are greater than the correlation peaks of preset second lead code, if so, executing
S803, if it is not, then executing S807.
S803, to receiving, signal carries out frequency departure compensation deals and sign synchronization deviation compensation is handled.
S804 detects the frequency expansion sequence of the second address code.
S805, judges whether the frequency expansion sequence of the second address code detects success, if so, S806 is executed, if it is not, then executing
S807。
S806 receives the data that host node is sent from node.
S807 enters dormant state from node.
It should be understood that although each step in the flow chart of Fig. 2,5,8 is successively shown according to the instruction of arrow,
It is these steps is not that the inevitable sequence according to arrow instruction successively executes.Unless expressly stating otherwise herein, these steps
There is no stringent sequences to limit for rapid execution, these steps can execute in other order.Moreover, in Fig. 2,5,8 extremely
Few a part of step may include that perhaps these sub-steps of multiple stages or stage are not necessarily same to multiple sub-steps
Moment executes completion, but can execute at different times, and the execution sequence in these sub-steps or stage is also not necessarily
It successively carries out, but in turn or can be handed over at least part of the sub-step or stage of other steps or other steps
Alternately execute.
In one embodiment, a kind of wireless communication system is provided, may refer to shown in Fig. 1, the host node and institute
State the node address coding staff that wireless communication system described in any of the above-described embodiment may be implemented in communication process from node
Method, it is similar that the realization principle and technical effect are similar, and details are not described herein.
The node address coding method of wireless communication system provided by the embodiments of the present application, can be adapted for shown in Fig. 9
Computer equipment.As shown in figure 9, the computer equipment includes that the processor, memory, network connected by system bus connects
Mouth, display screen and input unit.Wherein, the processor of the computer equipment is for providing calculating and control ability.The computer
The memory of equipment includes non-volatile memory medium, built-in storage.The non-volatile memory medium be stored with operating system and
Computer program.The built-in storage provides ring for the operation of operating system and computer program in non-volatile memory medium
Border.The network interface of the computer equipment is used to communicate with external computer by network connection.The computer program is located
A kind of node address coding method of wireless communication system is realized when reason device executes.Optionally, the display of the computer equipment
Screen can be liquid crystal display or electric ink display screen, and the input unit of the computer equipment can be and cover on display screen
Touch layer, be also possible to the key being arranged on computer equipment shell, trace ball or Trackpad, can also be external key
Disk, Trackpad or mouse etc..
It should be noted that structure shown in Fig. 9, the only block diagram of part-structure relevant to application scheme,
The restriction for the computer equipment being applied thereon to application scheme is not constituted, specific computer equipment may include ratio
More or fewer components as shown in the figure perhaps combine certain components or with different component layouts.
In one embodiment, a kind of computer equipment is provided, comprising: memory and processor, the memory are deposited
Computer program is contained, the processor performs the steps of when executing the computer program
When being in wake-up detecting state from node, receives the wake-up code character that host node is sent and close packet, the wake-up code character conjunction
Packet is the host node when there is communication requirement, is sent within the preset time, and the wake-up code character closes packet including the first
Location code character closes packet and the second address code combination packet, and first address code combination packet includes multiple first address codes, and described first
Address code includes the first lead code and the second lead code, and first lead code is permanent envelope zero auto-correlation sequence, and described second
Lead code is the conjugate sequence of first lead code, and the second address code combination packet includes multiple second address codes, described
For second address code using a frequency expansion sequence in pseudorandom spreading sequence code character, the time of the first address code combination packet is long
Spend identical with the time span of second address code, first address code and the second address code are collectively as described from node
Address code, the preset time is greater than from the wake-up period of node, it is described from the wake-up period of node be one from node
Detection time and the sum of dormancy time；
It is described from host node described in nodal test send wake-ups code character close wrap in the first address code the first lead code with
And second lead code；
When it is described detected successfully from the first lead code described in nodal test and the second lead code when, then continue to test institute
State the frequency expansion sequence of the second address code；
It is when the frequency expansion sequence from the second address code described in nodal test detects successfully, then described from node from described
It wakes up detecting state and enters formal wake-up states, and receive the data of host node transmission.
In one embodiment, a kind of readable storage medium storing program for executing is provided, computer program, the computer are stored thereon with
It is performed the steps of when program is executed by processor
When being in wake-up detecting state from node, receives the wake-up code character that host node is sent and close packet, the wake-up code character conjunction
Packet is the host node when there is communication requirement, is sent within the preset time, and the wake-up code character closes packet including the first
Location code character closes packet and the second address code combination packet, and first address code combination packet includes multiple first address codes, and described first
Address code includes the first lead code and the second lead code, and first lead code is permanent envelope zero auto-correlation sequence, and described second
Lead code is the conjugate sequence of first lead code, and the second address code combination packet includes multiple second address codes, described
For second address code using a frequency expansion sequence in pseudorandom spreading sequence code character, the time of the first address code combination packet is long
Spend identical with the time span of second address code, first address code and the second address code are collectively as described from node
Address code, the preset time is greater than from the wake-up period of node, it is described from the wake-up period of node be one from node
Detection time and the sum of dormancy time；
It is described from host node described in nodal test send wake-ups code character close wrap in the first address code the first lead code with
And second lead code；
When it is described detected successfully from the first lead code described in nodal test and the second lead code when, then continue to test institute
State the frequency expansion sequence of the second address code；
It is when the frequency expansion sequence from the second address code described in nodal test detects successfully, then described from node from described
It wakes up detecting state and enters formal wake-up states, and receive the data of host node transmission.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the computer program can be stored in a non-volatile computer
In read/write memory medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein,
To any reference of memory, storage, database or other media used in each embodiment provided herein,
Including non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM
(PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include
Random access memory (RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms,
Such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhancing
Type SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to claim therefore cannot be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of node address coding method of wireless communication system, which is characterized in that the described method includes:
When being in wake-up detecting state from node, receives the wake-up code character that host node is sent and close packet, the wake-up code character conjunction packet is
The host node is sent within the preset time when there is communication requirement, and it includes the first address code that the wake-up code character, which closes packet,
Combination packet and the second address code combination packet, the first address code combination packet includes multiple first address codes, first address
Code includes the first lead code and the second lead code, and first lead code is permanent envelope zero auto-correlation sequence, and described second is leading
Code is the conjugate sequence of first lead code, and second address code combination packet includes multiple second address codes, described second
Address code using a frequency expansion sequence in pseudorandom spreading sequence code character, the time span of the first address code combination packet and
The time span of second address code is identical, and first address code and the second address code are collectively as the ground from node
Location code, the preset time are greater than from the wake-up period of node, it is described from the wake-up period of node be a spy from node
Survey the sum of time and dormancy time；
The wake-ups code character sent from host node described in nodal test is closed wrap in the first address code the first lead code and the
Two lead codes；
When it is described detected successfully from the first lead code described in nodal test and the second lead code when, then continue to test described
The frequency expansion sequence of one-over-one-address code；The correlation peaks of the detection successful mode and first lead code of first lead code
Related, the successful mode of detection of second lead code is related with the correlation peaks of second lead code；
It is when the frequency expansion sequence from the second address code described in nodal test detects successfully, then described from node from the wake-up
Detecting state enters formal wake-up states, and receives the data of host node transmission；The frequency expansion sequence of second address code detects
Successful mode is related with the correlation peak of frequency expansion sequence of second address code.
2. the method according to claim 1, wherein the generating mode for waking up code character conjunction packet includes:
By first address code combination packet and preset first multiplied by gains, the first address code combination of the first gain is obtained
Packet；
By second address code combination packet and preset second multiplied by gains, the second address code combination of the second gain is obtained
Packet；
The first address code combination packet of first gain is added with the second address code of second gain combination packet, is obtained
Address code after synthesis combines packet；
Address code combination packet after the synthesis is sampled, filtered, digital-to-analogue conversion and frequency-conversion processing, obtains the wake-up
Code character closes packet.
3. the method according to claim 1, wherein described from the first lead code and second described in nodal test
Lead code detects successful mode, comprising:
It is greater than preset first lead code correlation peaks from the correlation peaks of the first lead code described in nodal test when described,
And it is greater than preset second lead code correlation peaks from the correlation peaks of the second lead code described in nodal test when described
When, it is determined that it is described to detect success from the first lead code described in nodal test and the second lead code, then it continues to test described
The frequency expansion sequence of second address code；
It is not more than preset second address code from the correlation peak of the frequency expansion sequence of the second address code described in nodal test when described
Frequency expansion sequence correlation peak when, it is determined that the frequency expansion sequence of second address code detects failure, described to enter from node
Dormant state.
4. the method according to claim 1, wherein the spread spectrum sequence from the second address code described in nodal test
Column detect successful mode, comprising:
When the correlation peak of the frequency expansion sequence of second address code from node is greater than the spread spectrum sequence of preset second address code
When the correlation peak of column, it is determined that the frequency expansion sequence of second address code detects successfully.
5. the method according to claim 1, wherein the frequency expansion sequence for continuing to test second address code
Before, the method also includes:
It calculates the host node and frequency departure and sign synchronization deviation from node, and utilizes the frequency departure and described
To receiving, signal carries out frequency departure compensation deals to sign synchronization deviation and sign synchronization deviation compensation is handled, the reception signal
Packet and data are closed for the wake-up code character that the host node is sent.
6. the method according to claim 1, wherein the method also includes:
Position of current second address code from node in second address code combination packet is calculated, and calculates institute
The residual time length of the second address code combination packet is stated, and sends out the host node that receives again after residual time length described in node dormancy
The data sent.
7. the method according to claim 1, wherein the method also includes:
When more from node, each frequency expansion sequence in the pseudorandom spreading sequence code character carries out circulation shifting with preset length
Position, the pseudo-random sequence code character after being expanded, and by each frequency expansion sequence in the pseudo-random sequence code character after the expansion
As each the second address code from node.
8. a kind of wireless communication system, including a host node and multiple from node, which is characterized in that the host node and described
The step of any one of the claims 1 to 7 the method may be implemented in communication process from node.
9. a kind of computer equipment, comprising: memory and processor, the memory are stored with computer program, and feature exists
In the step of processor realizes any one of claims 1 to 7 the method when executing the computer program.
10. a kind of computer equipment readable storage medium storing program for executing, is stored thereon with computer program, which is characterized in that the computer
The step of any one of claims 1 to 7 the method is realized when program is executed by processor.
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| CN110958676B (en) * | 2019-12-03 | 2023-09-26 | 成都亿佰特电子科技有限公司 | Low-power consumption dormancy equipment awakening method and system |
| CN117915442A (en) * | 2023-12-22 | 2024-04-19 | 嘉齐半导体(深圳)有限公司 | Method, equipment and system for reducing false wake-up power consumption |
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| US11729716B2 (en) * | 2017-04-11 | 2023-08-15 | Mediatek, Inc. | Efficient preamble design and modulation schemes for wake-up packets in WLAN with wake-up radio receivers |
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