CN115278705B - Communication time sequence planning method, device, related equipment, storage medium and system - Google Patents
Communication time sequence planning method, device, related equipment, storage medium and system Download PDFInfo
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- CN115278705B CN115278705B CN202211021193.XA CN202211021193A CN115278705B CN 115278705 B CN115278705 B CN 115278705B CN 202211021193 A CN202211021193 A CN 202211021193A CN 115278705 B CN115278705 B CN 115278705B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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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
The embodiment of the invention provides a communication time sequence planning method, a device, related equipment, a storage medium and a system, wherein the method comprises the following steps: the master node obtains a main super frame number; determining bit information of a first position of the primary super frame number; and if the bit information of the first position of the main super frame number is a first value, sending a message to the slave node. The embodiment of the invention provides a communication time sequence planning scheme of an indoor distribution system, which can coordinate the work of a master node and a slave node in the indoor distribution system.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a communication time sequence planning method, a device, related equipment, a storage medium and a system.
Background
In indoor environments such as large buildings, underground shops and underground parking lots, mobile communication signals are weak, so that a blind area and a shadow area of mobile communication are easily formed, and terminals such as mobile phones and the like which utilize the mobile communication signals cannot be normally used. The indoor distribution system can be used for improving mobile communication signals of indoor environment, and the indoor distribution system can be used for uniformly distributing mobile communication signals of information sources (such as base stations) at each corner of an indoor space, so that ideal signal coverage in the indoor environment is ensured.
The indoor distribution system mainly comprises a master node and a plurality of slave nodes connected with the master node, wherein the master node is connected with a signal source and can send mobile communication signals of the signal source to the slave nodes, so that the slave nodes can process the received mobile communication signals and then send the processed mobile communication signals to an air interface to finish the coverage of the mobile communication signals in an indoor environment. In the indoor distribution system, in order to coordinate the work of the master node and the slave node, a set of communication time sequence planning schemes of the master node and the slave node are required to be provided, so how to provide the communication time sequence planning schemes of the indoor distribution system becomes a technical problem to be solved by the technicians in the field.
Disclosure of Invention
In view of this, embodiments of the present invention provide a communication timing planning method, apparatus, related device, storage medium, and system, so as to coordinate the operation of a master node and a slave node in an indoor distribution system.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
a communication timing planning method applied to a master node, the method comprising:
Acquiring a main super frame number;
Determining bit information of a first position of the primary super frame number;
And if the bit information of the first position of the main super frame number is a first value, sending a message to the slave node.
The embodiment of the invention also provides a communication time sequence planning method which is applied to the slave node, and comprises the following steps:
synchronizing the secondary super frame number of the secondary node with the primary super frame number of the primary node;
determining bit information of at least a first position of the secondary super frame number;
and if the bit information of at least the first position of the secondary super frame number is the second value, sending a message to the master node.
The embodiment of the invention also provides a communication time sequence planning device which is applied to the master node, and the device comprises:
the main super frame number acquisition module is used for acquiring the main super frame number;
a first position bit information determining module, configured to determine bit information of a first position of the primary superframe number;
and the master node sending message module is used for sending a message to the slave node if the bit information of the first position of the main super frame number is a first value.
The embodiment of the invention also provides a communication time sequence planning device which is applied to the slave node, and the device comprises:
The synchronization module is used for synchronizing the secondary super frame number of the secondary node with the primary super frame number of the primary node;
At least a first position bit information determining module, configured to determine bit information of at least a first position from a super frame number;
And the slave node sending message module is used for sending a message to the master node if the bit information of at least the first position of the slave superframe number is a second value.
The embodiment of the invention also provides a master node, which comprises at least one memory and at least one processor, wherein the memory stores one or more computer executable instructions, and the processor calls the one or more computer executable instructions to execute the communication time sequence planning method executed by the master node.
The embodiment of the invention also provides a slave node, which comprises at least one memory and at least one processor, wherein the memory stores one or more computer executable instructions, and the processor calls the one or more computer executable instructions to execute the communication timing planning method executed by the slave node.
Embodiments of the present invention also provide a storage medium storing one or more computer-executable instructions for performing a communication timing planning method as performed by the master node or for performing a communication timing planning method as performed by the slave node.
The embodiment of the invention also provides an indoor distribution system which comprises the master node and a plurality of slave nodes.
In the communication time sequence planning method provided by the embodiment of the invention, the master node can determine the time for sending the message to the slave node based on the master superframe number, and after the slave superframe number of the slave node is synchronous with the master node, the slave node can determine the time for sending the message to the master node based on the slave superframe number, so that the communication between the master node and the slave node and the time for sending the message can be planned by the superframe number, and the master node and the slave node in the indoor distribution system can better coordinate and work; and the communication time sequence planning schemes of the master node and the slave node provided by the embodiment of the invention are realized based on the super frame numbers, the realization complexity of the communication time sequence planning scheme is lower, and the complexity brought by planning the communication time sequence by the central equipment in the prior art can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of an indoor distribution system provided by an embodiment of the present invention;
FIG. 2 is a diagram illustrating an exemplary communication state of an indoor distribution system according to an embodiment of the present invention;
Fig. 3 is a signaling flow chart of a communication timing planning method according to an embodiment of the present invention;
Fig. 4 is a flowchart of a communication timing planning method performed by a slave node according to an embodiment of the present invention;
Fig. 5 is another flowchart of a communication timing planning method performed by a slave node according to an embodiment of the present invention;
Fig. 6 is another signaling flow chart of a communication timing planning method according to an embodiment of the present invention;
FIG. 7 is a diagram illustrating communication interaction time between a master node and a slave node according to an embodiment of the present invention;
Fig. 8 is a block diagram of a communication timing planning apparatus according to an embodiment of the present invention;
FIG. 9 is a block diagram of a master node according to an embodiment of the present invention;
fig. 10 is another block diagram of a communication timing planning apparatus according to an embodiment of the present invention;
fig. 11 is a further block diagram of a communication timing planning apparatus according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
At present, the coverage of a 4G (fourth generation mobile communication technology) network, such as an LTE (Long Term Evolution ) network, is relatively perfect, indoor environments such as a large building, an underground mall, an underground parking lot and the like are generally deployed with an indoor distribution system for improving mobile communication signals, but with the promotion of 5G (fifth generation mobile communication technology) network construction, the 5G network has a higher requirement on the coverage of mobile communication signals in the indoor environment, and under the 5G network, the indoor distribution system may have more slave nodes, so that in the field of improving mobile communication signals in the indoor environment, how to fully utilize the existing indoor distribution system, the construction and maintenance cost of the 5G network is reduced, and the coverage of the 5G network in the indoor environment becomes a significant subject. In this problem, how to implement communication timing planning between a master node and a slave node in an indoor distribution system is a problem that needs to be solved.
As shown in fig. 1, the indoor distribution system mainly includes a master node 01 and a plurality of slave nodes 02, where the master node is connected with a source and transmits a mobile communication signal of the source to the slave nodes, and the slave nodes process the received mobile communication signal and then transmit the processed mobile communication signal to an air interface to complete coverage of the mobile communication signal in an indoor environment.
In an alternative implementation, after the indoor distribution system completes the cell search, its communication state may be as illustrated in fig. 2, including:
an initialization state (INIT STATE), in which after the indoor distribution system is started and the network searching is completed, the master node and the slave node enter the initialization state to complete necessary initialization operation;
The master node enters a master boot state (Master Boot State) after the master node completes initialization, and the master boot state mainly processes some restarting operations of the master node under the condition that the slave node is not aware, and broadcasts a notification that the master node is restarted;
Waiting for a downlink heartbeat state (WAIT DL HEART STATE), and entering the waiting downlink heartbeat state after the slave node finishes initialization so as to wait for a heartbeat message of the master node;
An access state (RACH STATE) in which a slave node requests access to a master node, and in which embodiments of the present invention may implement handshaking between the master node and the slave node;
A Normal operating State (Normal State) in which the master node sends a heartbeat message to the slave node and completes the handshake procedure; after completing a handshake flow in an access state, the slave node enters a normal working state; after the master node and the slave node both enter a normal working state, the indoor distribution system works normally.
From the communication states illustrated in fig. 2, it can be seen that, in different communication states, the master node and the slave node have a need to send and receive messages, so a set of communication timing planning schemes needs to be designed to determine the respective sending time of the message by the master node and the slave node in different communication states.
Based on this, the embodiment of the present invention considers that a superframe number is introduced, and the superframe number can be used for communication timing planning between the master node and the slave node, that is, the superframe number can determine the respective sending time of the message by the master node and the slave node.
In an optional implementation, fig. 3 shows an optional signaling flow of the communication timing planning method provided by the embodiment of the present invention, as shown in fig. 3, where the flow may include:
Step S10, the master node acquires a master superframe number.
In the embodiment of the invention, the super frame number can be used for communication time sequence planning between the master node and the slave node, correspondingly, the master node can determine the message sending time according to the super frame number of the master node, and the slave node can determine the message sending time according to the super frame number of the slave node. For convenience of explanation, in the embodiment of the present invention, the superframe number of the master node is referred to as a master superframe number, and the superframe number of the slave node is referred to as a slave superframe number.
In an alternative implementation, the superframe number may be counted in milliseconds; in a more specific optional implementation, for a specific mobile communication standard, a communication system will include a system frame number, and the embodiment of the invention can expand a plurality of bits as a superframe number based on the system frame number of the communication system, thereby obtaining the superframe number based on the existing system frame number of the multiplexing communication system; in one example, in the 3GPP LTE communication standard, there is a 10-bit system frame number, where the system frame number is counted in units of 10 milliseconds, and then an embodiment of the present invention may extend a plurality of bits based on the system frame number to obtain a superframe number, so that the superframe number can cover a longer time range, and thus the master node and the slave node may perform communication timing planning in the longer coverage time range.
In one example, the embodiment of the invention can obtain a system frame number of 10 bits from the MIB (Master Information Block, main message block) (the physical layer carries 8 bits of information in the actual MIB, and in the process of reading MIB, the physical layer can determine the information of 2 bits lower, so as to obtain the system frame number of 10 bits in total); because the system frame number of 10Bit is not used for the communication time sequence planning of the indoor distribution system, the embodiment of the invention can expand a plurality of bits on the basis of the system frame number of 10Bit to obtain a super frame number (such as obtaining a main super frame number of a main node), for example, the embodiment of the invention can expand 6 bits of information on the basis of the system frame number of 10Bit to obtain a super frame number of 16 Bit.
Step S11, the master node sends a master handshake message to the slave node according to the first time determined by the master superframe number, wherein the master handshake message at least carries the master superframe number.
Based on the main super frame number of the main node, the embodiment of the invention can determine the time when the main node sends the message to the slave node, and the embodiment of the invention can set the first time determined by the main super frame number, and the main node sends the message to the slave node; in an alternative implementation, to enable the slave node of the indoor distribution system to access the master node, thereby providing a basis for normal communication between the master node and the slave node, the embodiment of the present invention may initiate, after the initialization of the master node, a master handshake message (for convenience of illustration, the handshake message of the master node may be referred to as a master handshake message) from the master node to the slave node, so as to wait for the slave node to request to access the master node. Based on this, optionally, at a first time determined according to the master superframe number, the master node may send a master handshake message for waiting for requesting access to a slave node of the indoor distribution system, where the master handshake message may at least carry the master superframe number, so that the slave node may synchronize the slave superframe number of the slave node based on the master superframe number, to achieve alignment of the slave superframe number of the slave node with the master superframe number of the master node.
In a more specific alternative implementation, the master node may periodically broadcast the master handshake message to slave nodes of the indoor distribution system at a first time determined based on the master superframe number.
Optionally, the primary superframe number has a plurality of bits of information, and the primary superframe number changes with time, so that on the basis that the primary superframe number changes with time, the embodiment of the invention can determine whether the current time is the time of the primary node sending the message based on the bit information of a certain position of the primary superframe number; specifically, the embodiment of the present invention may set bit information of the first position of the primary superframe number, determine whether the current time is a time when the primary node sends a message, for example, when the bit information of the first position of the primary superframe number is a first value, the embodiment of the present invention may determine that the current time is a time when the primary node sends a message, so that the primary node may send a primary handshake message at least carrying the primary superframe number to the secondary node when the bit information of the first position of the primary superframe number is the first value; by way of example, the first location may be a lower 5-bit location of the primary superframe number, a first value of, for example, 0x10, such that the primary node may send a message to the secondary node by the primary node when the bit information of the lower 5-bit location of the primary superframe number is 0x 10.
In an alternative implementation, the order of the bit positions of the superframe numbers may be, for example: the bit positions decrease sequentially in a left to right order.
And step S12, the slave node receives the main handshake message and synchronizes the slave superframe number according to the main superframe number.
When the slave node receives the master handshake message, the slave superframe number can be updated based on the master superframe number carried by the master handshake message, so that the superframe number of the master node is synchronous with the superframe number of the slave node (i.e., the master superframe number is synchronous with the slave superframe number), and the master node and the slave node can send messages under the same rhythm based on the same superframe number.
And step S13, the slave node sends a slave handshake message to the master node according to the second time determined by the slave super frame number.
Based on the secondary super frame number after the secondary node is synchronized with the primary super frame number, the embodiment of the invention can determine the time for sending the message from the secondary node to the primary node, and can set the secondary super frame number to be in a state changing with time, so that the embodiment of the invention can send the message from the secondary node to the primary node at a second time determined by the secondary super frame number. In an alternative implementation, the slave node may send a slave handshake message for requesting access to the master node after acquiring the master handshake message (for convenience of description, the handshake message sent by the slave node may be referred to as a slave handshake message), based on which, in an alternative implementation, the slave node may send the slave handshake message for requesting access to the master node according to a second time determined from the superframe number.
Optionally, the embodiment of the present invention may set bit information of at least the first position of the slave superframe number, determine whether the current time is a time for the slave node to send a message, for example, when the bit information of at least the first position of the slave superframe number is a second value, the embodiment of the present invention may determine that the current time is a time for the slave node to send a message, so that the slave node may send a slave handshake message for requesting to access the master node to the master node when the bit information of at least the first position of the slave superframe number is a second value; in an alternative implementation, the second value may be smaller than the first value, that is, on the basis of synchronization of the master superframe number and the slave superframe number, the master node sends a message to the slave node when the bit information of the first position of the master superframe number is the first value, and the slave node sends a message to the master node when the bit information of at least the first position of the slave superframe number is the second value; in one example, the first location may be the lower 5 bit location of the superframe number, and the second value is, for example, 0x00, so that the slave node may transmit a message to the master node by the slave node when bit information of at least the lower 5 bit location of the slave superframe number is 0x 00.
Step S14, the master node receives the slave handshake message and sends a master handshake confirmation message to the slave node at the first time determined according to the master superframe number.
It may be understood that, in a state that the primary superframe number changes with time, the embodiment of the present invention sets a first time determined by the primary superframe, and the primary node sends a message to the secondary node, so that after receiving a secondary handshake message sent by the secondary node and used for requesting access to the primary node, the primary node may send a primary handshake acknowledgement message to the secondary node at the first time determined based on the primary superframe number; alternatively, in one example, after receiving the slave handshake message, the master node may send a master handshake acknowledgement message to the slave node when the bit information of the first position of the master superframe number is a first value, e.g., the master node may send the master handshake acknowledgement message to the slave node when the bit information of the lower 5 bit positions of the master superframe number is 0x 10.
It should be noted that, the master handshake confirmation message may indicate that the slave node has handshake failure with the master node, or may indicate that the slave node has handshake success with the master node, which is not limited by the embodiment of the present invention.
Optionally, further, in case that the handshake between the slave node and the master node is successful, the slave node accesses the master node, so that the slave node can perform normal communication with the master node, and according to the embodiment of the present invention, the master node sends a message to the slave node at a first time determined based on the master superframe number, and the slave node sends a message to the master node at a second time determined based on the slave superframe number, and when the slave node and the master node perform normal communication, the master node may send a normal communication message to the slave node at the first time determined based on the master superframe number, and the slave node may send a normal communication message to the master node at the second time determined based on the slave superframe number.
In the communication time sequence planning method provided by the embodiment of the invention, the master node can determine the time for sending the message to the slave node based on the master superframe number, and after the slave superframe number of the slave node is synchronous with the master node, the slave node can determine the time for sending the message to the master node based on the slave superframe number, so that the communication between the master node and the slave node and the time for sending the message can be planned by the superframe number, and the master node and the slave node in the indoor distribution system can better coordinate and work; and the communication time sequence planning schemes of the master node and the slave node provided by the embodiment of the invention are realized based on the super frame numbers, the realization complexity of the communication time sequence planning scheme is lower, and the complexity brought by planning the communication time sequence by the central equipment in the prior art can be reduced.
In a further optional implementation, the embodiment of the present invention may further subdivide the time for the slave node to send the non-handshake message and the handshake message, taking the example that the slave node sends the message when the bit information of at least the first location of the slave superframe number is the second value, and may further specifically distinguish whether the handshake message is sent by the slave node or the non-handshake message (the non-handshake message, such as a normal communication message, etc.); optionally, from the perspective of a node, fig. 4 shows a flow of a communication timing planning method provided by an embodiment of the present invention, as shown in fig. 4, where the flow may include:
step S20, when the bit information of the second position of the slave superframe number is the third value, the slave node transmits a slave handshake message to the master node.
After the slave node receives the master handshake message and synchronizes the slave superframe number with the master superframe number carried by the master handshake message, the slave node can send the slave handshake message to the master node when bit information of a second position of the slave superframe number is a third value; alternatively, the third value may be greater than the first and second values.
In a further alternative implementation, the bit information from the second location of the superframe number may include bit information from the first location of the superframe number, and the bit information from the first location of the superframe number is a second value; for example, the bit information of the second location and the first location may be low-position bit information from the superframe number, in one example, bit information from the second location of the superframe number, e.g., bit information from the low 6-bit position of the superframe number, bit information from the first location of the superframe number, e.g., bit information from the low 5-bit position of the superframe number, in a further example, the third value may be 0x20, i.e., when bit information from the low 6-bit position of the superframe number is 0x20, the slave node may send a slave handshake acknowledgement message to the master node; it will be appreciated that the bit information from the lower 6 bit positions of the super frame number is 0x20, and the bit information from the lower 5 bit positions of the super frame number is 0x00, that is, the bit information from the second position of the super frame number may contain the bit information from the first position of the super frame number, and the bit information from the first position of the super frame number is the second value.
Step S21, the slave node sends a non-handshake message to the master node when the bit information of the second position of the slave super frame number is a fourth value.
In the embodiment of the present invention, the slave node may send a non-handshake message to the master node when the bit information of the second location of the slave superframe number is the fourth value, for example, when the slave node accesses the master node and the slave node normally communicates, the slave node may send the non-handshake message for normal communication to the master node when the bit information of the second location of the slave superframe number is the fourth value. Illustratively, the fourth value may be, for example, 0x00 from the bit information of the second position of the superframe number, for example, from the bit information of the lower 6 bit positions of the superframe number.
It can be seen that, in the alternative embodiment provided by the embodiment of the present invention, the master node may send a message to the slave node when the bit information of the first position of the primary superframe number is the first value, for example, the master node may send a master handshake message, a master handshake acknowledgement message, a message for controlling remote restart, etc. to the slave node;
For the slave node, after the slave superframe number of the slave node is synchronous with the master superframe number, the slave node can send a message to the master node when bit information of at least a first position of the slave superframe number is a second value, wherein the second value is smaller than the first value;
More specifically, the slave node may send a slave handshake message to the master node when the bit information of the second location of the slave superframe number is a third value, where the bit information of the second location of the slave superframe number may include the bit information of the first location of the slave superframe number, and the bit information of the first location of the slave superframe number is the second value, and the third value may be greater than the first value and the second value; and the slave node may send a non-handshake message to the master node when the bit information of the second position of the slave superframe number is a fourth value, where the bit information of the second position of the slave superframe number includes the bit information of the first position of the slave superframe number.
Aiming at the slave node, the embodiment of the invention can further determine the sending time of the handshake message and the non-handshake message of the slave node based on the super frame number, and can realize more accurate communication time sequence planning of the slave node.
In a further optional implementation, since the indoor distribution system has a larger number of slave nodes, the embodiment of the invention can further determine the slave nodes which send the message at present based on the slave super frame number, so that the larger number of slave nodes in the indoor distribution system can send the message according to accurate time sequence constraint, and the situation that a plurality of slave nodes send the message to the master node at the same time, so that CRC (Cyclic Redundancy Check ) errors occur after the master node receives the message is avoided.
Optionally, from the perspective of the slave node, fig. 5 shows another flow of the communication timing planning method provided by the embodiment of the present invention, based on the method shown in fig. 5, the embodiment of the present invention may determine the slave node that currently sends the non-handshake message, as shown in fig. 5, where the flow may include:
Step S30, obtaining bit information from the third position of the super frame number.
Alternatively, the bit information from the third position of the super frame number may be information from the high bit position of the super frame number, and correspondingly, the third position of the super frame number may be higher than the first position and the second position of the super frame number; in one example, the third location from the superframe number may be bit information selected after removing bit information of the second location from the superframe number; taking the second position of the super frame number as the lower 6 bit position of the super frame number as an example, and the bit positions are sequentially lowered from the super frame number in sequence from left to right, the embodiment of the invention can shift 6 bits from the right of the super frame number, and then select the information of a certain bit position (such as the information of the first bit length) from the rest bit positions, thereby obtaining the bit information of the third position of the super frame number, and the bit information of the third position of the super frame number is the information of the bit position of the third position of the super frame number.
And S31, comparing the bit information of the third position with first information, wherein the first information is used for indicating the node identification of the slave node.
The embodiment of the invention can compare the bit information of the third position of the slave superframe number with the first information indicating the node identification of the slave node, thereby deciding whether to send the message by the current slave node based on the comparison result. Alternatively, node identities, such as node numbers, may be distinguished from different slave nodes in the indoor distribution system using different node identities.
After the slave node successfully handshakes with the master node, the slave node is assigned a valid node identification, at this time, the slave node may compare the bit information of the third location with the node identification assigned to the slave node to implement step S31, and accordingly, in this case, the node identification of the slave node may be regarded as an alternative form of the first information.
And step S32, if the comparison result shows that the bit information of the third position is consistent with the first information, triggering and executing the step of sending a non-handshake message to the master node if the bit information of the second position of the slave superframe number is a fourth value.
When the comparison result is the bit information of the third position of the slave superframe number and is consistent with the first information, the embodiment of the invention can send the non-handshake message to the master node by the current slave node, so that the slave node can further send the non-handshake message to the master node when the bit information of the second position of the slave superframe number is the fourth value. In an example, the first information indicating the node identification of the slave node may be information with a first bit length (such as information with a 6bit length), and the embodiment of the present invention may determine, in the slave superframe number, the information with the first bit length at the high bit position (such as information with the 6bit position at the high bit position of the slave superframe number), obtain the bit information at the third position of the slave superframe number, so as to compare the bit information at the third position with the first information, and further determine, when the comparison result is consistent, that the current slave node sends a non-handshake message, so that the slave node may send the non-handshake message to the master node at the fourth value of the bit information at the second position of the slave superframe number;
The embodiment of the invention can remove the bit information of the second position from the super frame number, and select the bit information (such as selecting the information of the first bit length) from the bit information of the rest positions to obtain the bit information of the third position.
In other optional implementations, the embodiment of the present invention may determine the slave node that currently sends the slave handshake message, which specifically includes the following steps:
Acquiring bit information from a fourth position of the super frame number; comparing the bit information of the fourth position with second information, wherein the second information is random information; if the comparison result shows that the bit information of the fourth position is consistent with the second information, triggering and executing the step of sending a slave handshake message for requesting access to the master node if the bit information of the second position of the slave superframe number is a third value; wherein the fourth location of the secondary superframe number is higher than the second location of the secondary superframe number.
It should be noted that, when the slave node sends the slave handshake message, the slave node may not have the allocated node identifier, and at this time, the bit information of the fourth position of the high bit of the slave superframe number may be compared with a random information (i.e. the second information), so as to determine the slave node that sends the handshake message currently; if the bit information of the fourth position is consistent with the second information, the current slave node sends a handshake message, and the slave node can send a slave handshake message for requesting access to the master node when the bit information of the second position of the slave superframe number is a third value;
In one example, the second information (random information) may be information with a second bit length (such as information with a 7bit or 8bit length), and in the embodiment of the present invention, the second bit length information at a high bit position may be determined from the superframe number (such as information with a 7bit or 8bit length determined from the high bit position of the superframe number), so as to obtain bit information at a fourth position of the superframe number, so as to compare the bit information at the fourth position with the second information, and further, when the comparison result is consistent, it may be determined that the slave handshake message is sent by the current slave node, so that the slave node may send the non-handshake message to the master node at the fourth value of the bit information at the second position of the slave superframe number;
the embodiment of the invention can remove the bit information of the second position from the super frame number, and select the bit information (such as selecting the information of the second bit length) from the bit information of the remaining positions to obtain the bit information of the fourth position.
In a more specific optional implementation of the embodiment of the present invention, fig. 6 shows another signaling flow of the communication timing planning method provided by the embodiment of the present invention, and referring to fig. 6, the flow may include:
step S40, the master node acquires the main super frame number.
In step S41, if the bit information of the first position of the primary superframe number is the first value, the master node sends a primary handshake message to the slave node, where the primary handshake message at least carries the primary superframe number.
The master node may determine bit information of a first location of the master superframe number, and if the bit information of the first location is a first value, the master node may send a master handshake message to the slave node.
Step S42, the slave node receives the main handshake message and synchronizes the slave superframe number according to the main superframe number.
Step S43, the slave node acquires bit information of a fourth position of the slave superframe number.
Step S44, if the bit information of the fourth position of the slave superframe number is consistent with the random information, and the bit information of the second position of the slave superframe number is a third value, the slave node sends a slave handshake message to the master node.
The slave node may determine bit information of a fourth location of the slave superframe number, and if the bit information of the fourth location of the slave superframe number coincides with the random information, the slave node may further determine bit information of a second location of the slave superframe number, and if the bit information of the second location of the slave superframe number is further a third value, the slave node may transmit a slave handshake message to the master node.
Step S45, the master node distributes node identification for the slave node.
In an alternative implementation, after receiving a slave handshake message sent by a slave node and used for requesting access to the master node, the master node may allocate a node identifier to the slave node, where the node identifier allocated to the slave node may be a node identifier unoccupied by other nodes.
In step S46, if the bit information of the first position of the primary superframe number is the first value, the master node sends a master handshake confirmation message to the slave node, where the master handshake confirmation message at least carries a node identifier allocated to the slave node.
Step S47, the slave node sets the node identification of the slave node according to the node identification carried by the master handshake confirmation message.
After receiving the master handshake confirmation message, the slave nodes can set the node identifiers based on the node identifiers carried in the master handshake confirmation message, so that different slave nodes in the indoor distribution system have different node identifiers.
Thus, the slave node and the master node can realize successful handshake, the slave node is accessed to the master node, and the follow-up slave node and the master node can perform normal communication.
And step S48, if the bit information of the third position of the secondary super frame number is consistent with the node identification, and the bit information of the second position of the secondary super frame number is a fourth value, sending a non-handshake message to the master node.
When the slave node and the master node perform normal communication, the slave node and the master node can interact with the non-handshake message, and when the current message sent by the slave node is determined based on the bit information of the third position of the slave superframe number and the bit information of the second position of the slave superframe number is a fourth value, the moment that the current time is the moment that the slave node sends the non-handshake message is determined, so that the slave node can send the non-handshake message to the master node.
In a more specific implementation example, the embodiment of the present invention may define a period length of one communication between the master node and the slave node as T1, where the unit is milliseconds; defining a communication period (T1), wherein the duration of communication between a master node and a slave node is T2, and the unit is millisecond, namely, the message can be sent by the master node or the slave node based on a super frame number in the T2 time in the embodiment of the invention; further, in order to reduce the call complexity of the slave node, the embodiment of the present invention may use a fixed communication timing sequence, for example, a time range T0 of N T1 period lengths may be defined, and N times of communication may be performed in T0, and an example, a specific communication interaction time example between the master node and the slave node may be referred to as shown in fig. 7; in the T0 time range, the number of times of communication between the master node sending a message and the slave node receiving a message is assumed to be X times, the number of times of communication between the slave node sending a message and the master node receiving a message is assumed to be Y times, wherein the number of times of communication is allocated to a handshake message Y1 time and the number of times of communication is allocated to a non-handshake message Y2 time, and in a typical application scenario, a configuration example of specific data may be as follows: t1=160 milliseconds, t2=3 milliseconds, n=4, corresponding to t0=640 milliseconds, x=2, y=2, y1=1, y2=1.
In the communication time sequence planning method provided by the embodiment of the invention, the master node can determine the time for sending the message to the slave node based on the master superframe number, and after the slave superframe number of the slave node is synchronous with the master node, the slave node can determine the time for sending the message to the master node based on the slave superframe number, so that the communication between the master node and the slave node and the time for sending the message can be planned by the superframe number, and the master node and the slave node in the indoor distribution system can better coordinate and work; the communication time sequence planning scheme of the master node and the slave node provided by the embodiment of the invention is realized based on the super frame number, is extremely convenient and fast, and can reduce the complexity brought by planning the communication time sequence by the central equipment.
The foregoing describes several embodiments of the present invention, and the various alternatives presented by the various embodiments may be combined, cross-referenced, with each other without conflict, extending beyond what is possible embodiments, all of which are considered to be embodiments of the present invention disclosed and disclosed.
The communication timing planning apparatus provided by the embodiment of the present invention is described below from the perspective of the master node, and the content of the apparatus described below may be considered as a functional module that needs to be set by the master node to implement the communication timing method provided by the embodiment of the present invention. The contents of the communication timing planning apparatus described below can be referred to in correspondence with the contents of the communication timing planning method described above.
In an alternative implementation, fig. 8 shows an alternative block diagram of a communication timing planning apparatus provided by an embodiment of the present invention, where the apparatus is applied to a master node, as shown in fig. 8, and the apparatus may include:
a primary super frame number acquisition module 100, configured to acquire a primary super frame number;
a first location bit information determining module 110, configured to determine bit information of a first location of the primary superframe number;
the master node sending message module 120 is configured to send a message to a slave node if the bit information of the first location of the primary superframe number is a first value.
Optionally, in an aspect, the master node sending a message module 120, configured to send a message to the slave node if the bit information of the first location of the primary superframe number is a first value includes:
After the primary node is initialized, if the bit information of the first position of the primary super frame number is a first value, a primary handshake message for waiting for the secondary node to request access is sent to the secondary node, and the primary handshake message at least carries the primary super frame number.
Optionally, on the other hand, the master node sending a message module 120, configured to send a message to the slave node if the bit information of the first location of the primary superframe number is a first value, where the sending includes:
And after receiving the slave handshake message sent by the slave node and used for requesting access, if the bit information of the first position of the master superframe number is a first value, sending a master handshake confirmation message to the slave node.
Optionally, in still another aspect, the master node sending a message module 120, configured to send a message to the slave node if the bit information of the first location of the primary superframe number is a first value includes:
And after the slave node successfully handshakes with the master node, if the bit information of the first position of the primary super frame number is a first value, sending a normal communication message to the slave node.
Optionally, the primary superframe number obtaining module 100 is configured to obtain a primary superframe number, and includes:
and extracting a system frame number from the main message block, and expanding a plurality of bits on the basis of the system frame number to obtain the main super frame number.
Optionally, the bit information of the first position of the primary super frame number includes: and the bit information of the lower 5 bit positions of the main super frame number is that the bit positions of the main super frame number are sequentially reduced according to the sequence from left to right.
The embodiment of the invention also provides a master node which can realize the communication time sequence planning method provided by the embodiment of the invention by loading the functional module. In an alternative implementation, fig. 9 shows an alternative block diagram of a master node provided by an embodiment of the present invention, where, as shown in fig. 9, the master node may include: at least one processor 1, at least one communication interface 2, at least one memory 3 and at least one communication bus 4.
In the embodiment of the present invention, the number of the processor 1, the communication interface 2, the memory 3 and the communication bus 4 is at least one, and the processor 1, the communication interface 2 and the memory 3 complete communication with each other through the communication bus 4.
Alternatively, the communication interface 2 may be an interface of a communication module for performing network communication.
Alternatively, the processor 1 may be a CPU (central processing unit), GPU (Graphics Processing Unit, graphics processor), NPU (embedded neural network processor), FPGA (Field Programmable GATE ARRAY ), TPU (tensor processing unit), AI chip, application-specific ASIC (Application SPECIFIC INTEGRATED Circuit), baseband chip, or one or more integrated circuits configured to implement embodiments of the invention, or the like.
The memory 3 may comprise a high-speed RAM memory or may further comprise a non-volatile memory, such as at least one disk memory.
The memory 3 stores one or more computer executable instructions, and the processor 1 invokes the one or more computer executable instructions to execute the communication timing planning method of the master node angle provided by the embodiment of the present invention.
The embodiment of the invention also provides a storage medium which can store one or more computer executable instructions, and the one or more computer executable instructions can be used for executing the communication time sequence planning method of the main node angle provided by the embodiment of the invention.
The following describes the communication timing planning apparatus provided in the embodiment of the present invention from the perspective of the slave node, where the content of the apparatus described below may be regarded as a functional module required to be set by the slave node to implement the communication timing method provided in the embodiment of the present invention. The contents of the communication timing planning apparatus described below can be referred to in correspondence with the contents of the communication timing planning method described above.
In an alternative implementation, fig. 10 shows another alternative block diagram of a communication timing planning apparatus provided by an embodiment of the present invention, where the apparatus is applied to a slave node, as shown in fig. 10, and the apparatus may include:
a synchronization module 200, configured to synchronize a secondary superframe number of the secondary node with a primary superframe number of the primary node;
At least a first location bit information determining module 210, configured to determine bit information of at least a first location from a superframe number;
The slave node sending message module 220 is configured to send a message to the master node if the bit information of at least the first location of the slave superframe number is a second value.
Optionally, the synchronization module 200 is configured to synchronize the secondary superframe number of the secondary node with the primary superframe number of the primary node, and includes:
Acquiring a main handshake message sent by a main node, wherein the main handshake message carries a main superframe number of the main node; and synchronizing the slave superframe numbers of the slave nodes according to the master superframe numbers.
Optionally, in one aspect, the message sending module 220 of the slave node is configured to send a message to the master node if the bit information of at least the first location of the slave superframe number is a second value, where the sending includes:
After receiving the master handshake message of the master node, if the bit information of the second position of the slave superframe number is a third value, sending a slave handshake message for requesting to access the master node to the master node; the bit information of the second position of the secondary super frame number comprises bit information of the first position of the secondary super frame number, the bit information of the first position of the secondary super frame number is a second value, and the third value is larger than the second value.
Optionally, the bit information of the first position of the slave superframe number includes: bit information of the lower 5 bit positions of the secondary super frame number, wherein the secondary super frame number is sequentially lowered according to the sequence from left to right; the bit information of the second position of the slave superframe number includes: the bit information of the lower 6 bit position of the slave superframe number.
Optionally, on the other hand, the secondary node sending a message module 220, configured to send a message to the primary node if the bit information of at least the first location of the secondary superframe number is a second value, where the sending includes:
and after the handshake between the slave node and the master node is successful, if the bit information of the second position of the slave superframe number is a fourth value, sending a non-handshake message to the master node, wherein the bit information of the second position of the slave superframe number comprises the bit information of the first position of the slave superframe number.
Optionally, in terms of deciding on a slave node sending a non-handshake message, fig. 11 shows a further alternative block diagram of a communication timing planning apparatus according to an embodiment of the present invention, where the apparatus is applied to the slave node, and in conjunction with fig. 10 and 11, the apparatus may further include:
A judgment triggering module 230, configured to obtain bit information from a third position of the superframe number; comparing the bit information of the third position with first information, wherein the first information is used for indicating the node identification of the slave node; if the comparison result shows that the bit information of the third position is consistent with the first information, triggering the slave node sending message module 220 to execute the step of sending a non-handshake message to the master node if the bit information of the second position of the slave superframe number is a fourth value; wherein the third position of the secondary super frame number is higher than the second position of the secondary super frame number.
Optionally, in acquiring the bit information of the third location, the determining triggering module 230 is configured to acquire the bit information of the third location from the superframe number, including:
and removing the bit information of the second position from the super frame number, and selecting the bit information from the bit information of the rest positions to obtain the bit information of the third position.
Alternatively, when the first information is information of the first bit length, the length of the bit information of the third position may be the first bit length.
Optionally, in terms of deciding a slave node sending a handshake message, as shown in fig. 11, an embodiment of the present invention may also provide a judgment trigger module 230, where the judgment trigger module 230 is configured to:
Acquiring bit information from a fourth position of the super frame number; comparing the bit information of the fourth position with second information, wherein the second information is random information; if the comparison result shows that the bit information of the fourth position is consistent with the second information, triggering the slave node sending message module 220 to execute the step of sending a slave handshake message for requesting to access the master node to the master node if the bit information of the second position of the slave superframe number is a third value; wherein the fourth location of the secondary superframe number is higher than the second location of the secondary superframe number.
Optionally, in acquiring the bit information from the fourth position of the super frame number, the determining triggering module 230 is configured to acquire the bit information from the fourth position of the super frame number, including:
And removing the bit information of the second position from the super frame number, and selecting the bit information from the bit information of the rest positions to obtain the bit information of the fourth position.
Alternatively, when the random information is information of the second bit length, the length of the bit information of the fourth position may be the second bit length.
The embodiment of the invention also provides a slave node, and the slave node can be loaded with the functional module so as to realize the communication time sequence planning method provided by the embodiment of the invention. In an alternative implementation, an alternative block diagram of a slave node may be shown in conjunction with fig. 9, including at least one memory storing one or more computer-executable instructions and at least one processor invoking the one or more computer-executable instructions to perform the node-wise communication timing planning method provided by embodiments of the present invention.
The embodiment of the invention also provides a storage medium which can store one or more computer executable instructions, and the one or more computer executable instructions can be used for executing the communication time sequence planning method from the node point of view.
The embodiment of the invention also provides an indoor distribution system which comprises the master node and a plurality of slave nodes.
Although the embodiments of the present invention are disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.
Claims (7)
1. A communication timing planning method, applied to a slave node, the method comprising:
synchronizing the secondary super frame number of the secondary node with the primary super frame number of the primary node;
determining bit information of at least a first position and a fourth position of the secondary super frame number;
Comparing the bit information of the fourth position with second information, wherein the second information is random information;
If the comparison result shows that the bit information of the fourth position is consistent with the second information, after receiving the master handshake message of the master node, if the bit information of the second position of the slave superframe number is a third value, sending a slave handshake message for requesting to access the master node to the master node;
Wherein the bit information of the second position of the secondary super frame number comprises the bit information of the first position of the secondary super frame number, and the bit information of the first position of the secondary super frame number is a second value, and the third value is larger than the second value; the fourth position of the secondary super frame number is higher than the second position of the secondary super frame number; and removing the bit information of the second position from the super frame number, and selecting the bit information from the bit information of the rest positions to obtain the bit information of the fourth position.
2. The communication timing planning method according to claim 1, wherein synchronizing the slave superframe number of the slave node with the master superframe number of the master node comprises:
Acquiring a main handshake message sent by a main node, wherein the main handshake message carries a main superframe number of the main node; and synchronizing the slave superframe numbers of the slave nodes according to the master superframe numbers.
3. The communication timing planning method of claim 1, wherein the bit information from the first position of the super frame number comprises: bit information of the lower 5 bit positions of the secondary super frame number, wherein the secondary super frame number is sequentially lowered according to the sequence from left to right; the bit information of the second position of the slave superframe number includes: the bit information of the lower 6 bit position of the slave superframe number.
4. A communication timing planning apparatus for application to a slave node, the apparatus comprising:
The synchronization module is used for synchronizing the secondary super frame number of the secondary node with the primary super frame number of the primary node;
a bit information determining module, configured to determine bit information of at least a first position and a fourth position of the secondary superframe number;
The slave node sends a message module, which is used for comparing the bit information of the fourth position with second information, wherein the second information is random information; if the comparison result shows that the bit information of the fourth position is consistent with the second information, after receiving the master handshake message of the master node, if the bit information of the second position of the slave superframe number is a third value, sending a slave handshake message for requesting to access the master node to the master node;
Wherein the bit information of the second position of the secondary super frame number comprises the bit information of the first position of the secondary super frame number, and the bit information of the first position of the secondary super frame number is a second value, and the third value is larger than the second value; the fourth position of the secondary super frame number is higher than the second position of the secondary super frame number; and removing the bit information of the second position from the super frame number, and selecting the bit information from the bit information of the rest positions to obtain the bit information of the fourth position.
5. A slave node comprising at least one memory storing one or more computer-executable instructions and at least one processor invoking the one or more computer-executable instructions to perform the communication timing planning method of any of claims 1-3.
6. A storage medium storing one or more computer-executable instructions for performing the communication timing planning method of any of claims 1-3.
7. An indoor distribution system comprising a plurality of slave nodes according to claim 5.
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