CN113490204A - Data transmission method, wireless ad hoc network forwarding device, terminal and storage medium - Google Patents
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Abstract
The invention discloses a data transmission method, a wireless ad hoc network forwarding device, a terminal and a storage medium, wherein if the wireless ad hoc network forwarding device is a primary forwarding device, first service data is forwarded to a lower-level wireless ad hoc network forwarding device at a first frequency point at two time slots, second service data is sent to the lower-level wireless ad hoc network forwarding device at a second frequency point in the next adjacent time slot, if the wireless ad hoc network forwarding device is a non-primary forwarding device, after the first service data and the second service data forwarded by the upper-level wireless ad hoc network forwarding device are received, the first service data is forwarded at the first frequency point at two time slots, and the second service data is forwarded at the second frequency point. According to the scheme, the link networking data and the service data are forwarded on different frequency points based on different forwarding rules, so that the link networking data and the service data do not conflict when being forwarded at the same time, parallel transmission of the link networking data and the service data is realized without mutual interference, and the timeliness of a link networking channel is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method, a wireless ad hoc network forwarding apparatus, a terminal, and a storage medium.
Background
In recent years, with the development of the mobile communication industry in China, a relatively perfect mobile communication network is built in most key areas. However, the line installed by wire in the mobile communication system is easily damaged by the outside. Therefore, at present, wireless ad hoc network technology is mostly adopted, and automatic networking is performed based on devices in the wireless ad hoc network to establish connection of network lines in a wireless communication system.
In the wireless ad hoc network, each device has two functions of link networking and service transmission. Wherein the link networking data and the service data are wirelessly transmitted through a channel of the communication device. In the prior art, the wireless ad hoc network technology adopts 4 time slots as a cycle to sequentially jump data, the mode can only provide one channel, link networking data and service data can only be sequentially transmitted in the same channel, and the transmission efficiency is very low. Under the actual emergency condition, link networking data and service data need to be transmitted in time, channel resources preferentially allow the service data to be used in order to avoid conflict between the transmission of the link networking data and the service data among the devices, and the link networking data can be transmitted only when the channel is idle, so that the timeliness of the link networking channel is seriously influenced.
Disclosure of Invention
In view of this, embodiments of the present invention provide a data transmission method, a wireless ad hoc network forwarding apparatus, a terminal and a storage medium, so as to achieve the purpose of implementing parallel transmission of link networking data and service data without mutual interference and improving timeliness of a link networking channel.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
the first aspect of the invention discloses a data transmission method, which is applied to a wireless ad hoc network forwarding device and comprises the following steps:
if the wireless ad hoc network forwarding device is a first-time forwarding device, receiving first service data issued by a service initiating device, forwarding the first service data to a next-stage wireless ad hoc network forwarding device at a first frequency point by two time slots at intervals, and sending second service data to the next-stage wireless ad hoc network forwarding device at a second frequency point in next frame of adjacent time slots;
if the wireless ad hoc network forwarding device is a non-first-time forwarding device, after receiving the first service data and the second service data forwarded by the upper-level wireless ad hoc network forwarding device, respectively, two time slots are separated to forward the first service data at the first frequency point, and forward the second service data at the second frequency point.
Preferably, the method further comprises the following steps:
and if the wireless ad hoc network forwarding device is a service initiating device, the first service data is sent to the next-stage wireless ad hoc network forwarding device at the first frequency point in any air interface time slot, and the second service data is sent at the second frequency point at intervals of one time slot.
Preferably, if the wireless ad hoc network forwarding device is a non-first-time forwarding device, after receiving the first service data and the second service data forwarded by the upper-level wireless ad hoc network forwarding device, the first service data is forwarded at the first frequency point and the second service data is forwarded at the second frequency point at two time slots, including:
if the wireless ad hoc network forwarding device is a non-primary forwarding device, the wireless ad hoc network forwarding device and a previous wireless ad hoc network forwarding device establish time sequence synchronization;
the wireless ad hoc network forwarding device respectively receives the first service data forwarded by the previous wireless ad hoc network device at the first frequency point and the second service data forwarded by the previous wireless ad hoc network device at the second frequency point based on the two time slots determined by the time sequence synchronization;
the wireless ad hoc network forwarding device takes a receiving time slot as a reference, and forwards the first service data to a next wireless ad hoc network forwarding device at two time slots at intervals respectively by using the first frequency point, and forwards the second service data to the next wireless ad hoc network forwarding device at the second frequency point.
Preferably, the method further comprises the following steps:
the first frequency point and the second frequency point are configured in advance by utilizing two phase-locked loops, each phase-locked loop corresponds to one frequency point, the first frequency point is used for transmitting the first service data, and the second frequency point is used for transmitting the second service data;
correspondingly, in the data transmission process, the two phase-locked loops are switched through a switch so as to switch the first frequency point and the second frequency point for data transmission.
The second aspect of the present invention discloses a wireless ad hoc network forwarding apparatus, including:
a receiving module, configured to receive first service data sent by a service initiating device and second service data sent by a previous-stage wireless ad hoc network forwarding device when the wireless ad hoc network forwarding device is a forwarding device;
the first passive issuing module is used for transmitting the first service data to a next-stage wireless ad hoc network transmitting device at a first frequency point by two time slots at intervals when the wireless ad hoc network transmitting device is a first transmitting device, and transmitting the second service data to the next-stage wireless ad hoc network transmitting device at a second frequency point in the next frame of adjacent time slots;
a second passive issuing module, configured to, when the wireless ad hoc network forwarding device is a non-first-time forwarding device, after the receiving module receives the first service data and the second service data forwarded by the previous-stage wireless ad hoc network forwarding device, respectively forward the first service data at a first frequency point at two time slots at an interval, and forward the second service data at a second frequency point;
and the time sequence synchronization module is used for carrying out time slot synchronization with other wireless networking forwarding devices.
Preferably, the method further comprises the following steps:
and the active issuing module is used for sending first service data to the next-stage wireless ad hoc network forwarding device at any empty slot by a first frequency point and issuing second service data by a second frequency point at intervals of one time slot when the wireless ad hoc network forwarding device is a service initiating device.
Preferably, the second passive delivery module is specifically configured to establish timing synchronization with a previous-stage wireless ad hoc network forwarding device when the wireless ad hoc network forwarding device is a non-primary forwarding device; respectively receiving the first service data forwarded by the previous wireless ad hoc network device at the first frequency point and the second service data forwarded by the previous wireless ad hoc network device at the second frequency point based on two time slots determined by time sequence synchronization; and respectively transmitting the first service data to the next-stage wireless ad hoc network forwarding device at two time slots at intervals by taking the receiving time slot as a reference, and transmitting the second service data to the next-stage wireless ad hoc network forwarding device at the second frequency point.
Preferably, the method further comprises the following steps:
the configuration module is used for utilizing two phase-locked loops to pre-configure the first frequency point and the second frequency point, wherein each phase-locked loop corresponds to one frequency point, the first frequency point is used for transmitting the first service data, and the second frequency point is used for transmitting the second service data;
and the switching module is used for switching the two phase-locked loops through a switch in the data transmission process so as to switch the first frequency point and the second frequency point for data transmission.
A third aspect of the present invention discloses a terminal, including: a memory and a processor;
the memory is used for storing a computer program;
the processor is configured to perform the data transmission method of any one of the first aspect according to a computer program stored in the memory.
A fourth aspect of the invention discloses a storage medium having stored thereon a computer program which, when executed by a processor, implements a data transmission method as defined in any one of the first aspects.
According to the technical scheme, if the wireless ad hoc network forwarding device is a first-time forwarding device, first service data sent by a service initiating device is received, the first service data is forwarded to a next-stage wireless ad hoc network forwarding device at a first frequency point at two time slots, second service data is sent to the next-stage wireless ad hoc network forwarding device at a second frequency point in the next adjacent time slot, if the wireless ad hoc network forwarding device is a non-first-time forwarding device, after the first service data and the second service data forwarded by the previous-stage wireless ad hoc network forwarding device are received, the first service data is forwarded at the first frequency point at two time slots, and the second service data is forwarded at the second frequency point. By the scheme, the link networking data and the service data are forwarded on different frequency points based on different forwarding rules, so that the link networking data and the service data do not conflict when being forwarded at the same time, parallel transmission of the link networking data and the service data is realized without mutual interference, and the timeliness of a link networking channel is improved.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram illustrating that a wireless ad hoc network forwarding device disclosed in an embodiment of the present invention forwards first service data and second service data when the wireless ad hoc network forwarding device is a service initiating device;
fig. 2 is a schematic diagram illustrating that a wireless ad hoc network forwarding device according to an embodiment of the present invention forwards first service data and second service data when the wireless ad hoc network forwarding device is a primary forwarding device;
fig. 3 is a schematic diagram illustrating that a wireless ad hoc network forwarding device disclosed in the embodiment of the present invention forwards first service data and second service data when the forwarding device is a non-primary forwarding device;
fig. 4 is a schematic flowchart of a data transmission method according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating that a wireless ad hoc network forwarding device according to an embodiment of the present invention forwards first service data and second service data;
fig. 6 is a schematic structural diagram of a forwarding apparatus of a wireless ad hoc network disclosed in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the prior art, in a wireless ad hoc network, each device has two functions of link networking and service transmission. Wherein the link networking data and the service data are wirelessly transmitted through a channel of the communication device. The wireless ad hoc network technology adopts 4 time slots as a cycle to jump data in sequence, the mode can only provide one channel, link networking data and service data can only be transmitted in sequence in the same channel, and the transmission efficiency is very low. Under the actual emergency condition, link networking data and service data need to be transmitted in time, channel resources preferentially allow the service data to be used in order to avoid conflict between the transmission of the link networking data and the service data among the devices, and the link networking data can be transmitted only when the channel is idle, so that the timeliness of the link networking channel is seriously influenced.
In order to solve the problem, the embodiment of the invention discloses a data transmission method, a wireless ad hoc network forwarding device, a terminal and a storage medium.
For example, a Time Division Duplex (TDD) hopping method is used for data transmission, and the TDD hopping method requires frequency switching and transmit-receive switching of adjacent Time slots, so that there are high requirements for transmission delay of a transmitter and locking Time of a Time slot synchronization and a phase-locked loop.
The transmission time delay of the transmitter is the sum of the function preamplification time, the switching time of the change-over switch and the upward climbing time of the baseband signal, and through debugging tests, the transmission time delay of the transmitter is less than the guard interval with 1ms and more than 1.2ms, thereby meeting the time delay requirement.
The locking time of the phase-locked loop is closely related to the loop bandwidth and the phase noise level, so that in order to guarantee a lower phase noise level and a certain loop bandwidth, the locking time of the phase-locked loop is generally about 6ms, but the locking time of the phase-locked loop does not meet the functional requirements of the scheme, therefore, the radio frequency board adopts the function of mutual switching of multiple phase-locked loops, different frequency points are respectively preconfigured in advance by two phase-locked loops, different phase-locked loops are switched through a switch to change the transmitting and receiving frequency points in a transient state when time slots are switched, the smooth switching of the frequency points is obtained, and the functional requirements are met.
The wireless ad hoc network forwarding device in the scheme simultaneously forwards the link network data by adopting the first frequency point and forwards the service data by adopting the second frequency point.
The first frequency point is a frequency point used by the main service, and the second frequency point is a frequency point used by other non-main services. Optionally, the second frequency point may also be a frequency point used by the main service.
Taking TDD as an example, as shown in fig. 1, a schematic diagram of forwarding first service data and second service data when a wireless ad hoc network forwarding device disclosed in the embodiment of the present invention is a service initiating device is shown.
In fig. 1, if the wireless ad hoc network forwarding device is a service initiating device, first service data is sent to a next-level wireless ad hoc network forwarding device at a first frequency point in any air interface time slot, and second service data is sent at a second frequency point every other time slot.
In fig. 1, the first frequency point is denoted by F1, and the second frequency point is denoted by F2.
It should be noted that the solid arrow in fig. 1 is initiated based on the first frequency point, the forwarding of the first service data of the solid arrow is forwarded based on the transmission rule of the main link of the digital trunking communication (Trans European Trunk Radio System, Tetra), the dotted arrow is initiated based on the second frequency point F2, and the forwarding of the second service data of the dotted arrow is forwarded based on the transmission rule of the concurrent link.
The method comprises the steps that a TDD mode link with 4 time slots as one frame is used in a Tetra networking link for networking, the wireless continuous connection of a current wireless ad hoc network forwarding device and a next-stage wireless ad hoc network forwarding device is established according to the receiving time slot information of the wireless ad hoc network forwarding device and a fixed period following strategy, and therefore the first service data transmission of the wireless ad hoc network forwarding device is completed, wherein the time slot is the minimum unit for circuit switching summary information transmission, and the first service data is main link data of the Tetra networking. Numeral 1 in fig. 1 denotes a first time slot, numeral 2 denotes a second time slot, numeral 3 denotes a third time slot, and numeral 4 denotes a fourth time slot.
Also taking TDD as an example, as shown in fig. 2, a schematic diagram of forwarding the first service data and the second service data when the wireless ad hoc network forwarding device disclosed in the embodiment of the present invention is a first-time forwarding device is shown.
In fig. 2, if the wireless ad hoc network forwarding device is a first-time forwarding device, the first service data sent by the service initiating device is received, the first service data is forwarded to the next-stage wireless ad hoc network forwarding device at a first frequency point every two time slots, and the second service data is sent to the next-stage wireless ad hoc network forwarding device at a second frequency point in the next frame of adjacent time slots.
In fig. 2, the first frequency point is denoted by F1, and the second frequency point is denoted by F2.
Numeral 1 in fig. 2 denotes a first time slot, numeral 2 denotes a second time slot, numeral 3 denotes a third time slot, and numeral 4 denotes a fourth time slot.
It should be noted that the solid arrow in fig. 2 is initiated based on the first frequency point, the forwarding of the first service data of the solid arrow is initiated based on the Tetra main link transmission rule, the dotted arrow is initiated based on the second frequency point F2, and the forwarding of the second service data of the dotted arrow is forwarded based on the concurrent link transmission rule.
Also taking TDD as an example, as shown in fig. 3, it is a schematic diagram that the wireless ad hoc network forwarding device disclosed in the embodiment of the present invention forwards the first service data and the second service data when the wireless ad hoc network forwarding device is a non-first-time forwarding device.
In fig. 3, if the wireless ad hoc network forwarding device is a non-first-time forwarding device, after receiving the first service data and the second service data forwarded by the upper-level wireless ad hoc network forwarding device, the first service data is forwarded at the first frequency point and the second service data is forwarded at the second frequency point at two time slots.
Specifically, if the wireless ad hoc network forwarding device is a non-primary forwarding device, after receiving first service data and second service data forwarded by a previous wireless ad hoc network forwarding device, the first service data is forwarded at a first frequency point at two time slots, and the process of forwarding the second service data at a second frequency point is as follows:
if the wireless ad hoc network forwarding device is a non-primary forwarding device, the wireless ad hoc network forwarding device and a previous wireless ad hoc network forwarding device establish time sequence synchronization; the wireless ad hoc network forwarding device respectively receives first service data forwarded by a previous wireless ad hoc network device at a first frequency point and second service data forwarded by the previous wireless ad hoc network device at a second frequency point based on two time slots determined by time sequence synchronization; the wireless ad hoc network forwarding device takes the receiving time slot as a reference, and forwards the first service data to the next wireless ad hoc network forwarding device at two time slots at intervals respectively by using a first frequency point and forwards the second service data to the next wireless ad hoc network forwarding device by using a second frequency point.
In fig. 3, the first frequency point is denoted by F1, and the second frequency point is denoted by F2.
Numeral 1 in fig. 3 denotes a first time slot, numeral 2 denotes a second time slot, numeral 3 denotes a third time slot, and numeral 4 denotes a fourth time slot.
It should be noted that the solid arrow in fig. 3 is initiated based on the first frequency point, the forwarding of the first service data of the solid arrow is initiated based on the Tetra main link transmission rule, the dotted arrow is initiated based on the second frequency point F2, and the forwarding of the second service data of the dotted arrow is forwarded based on the concurrent link transmission rule.
In the embodiment of the present invention, the first service data forwarding in fig. 1, fig. 2, and fig. 3 is based on a Tetra networking main link transmission rule, and the second service data forwarding is based on a concurrent link transmission rule, so that the effects of parallel forwarding and non-interference of the first service data and the second service data can be achieved in the whole data forwarding process.
Fig. 4 is a schematic flow chart of a data transmission method disclosed in an embodiment of the present invention, where the data transmission method is applied to a wireless ad hoc network forwarding device, and the data transmission method specifically includes the following steps:
s401: the method comprises the steps that a first frequency point and a second frequency point are preconfigured by utilizing two phase-locked loops, each phase-locked loop corresponds to one frequency point, the first frequency point is used for transmitting first service data, and the second frequency point is used for transmitting second service data.
In S401, each phase-locked loop corresponds to a frequency point, and in the subsequent data transmission process by time slot switching, the two phase-locked loops are switched by a switch to change the transmitting and receiving frequency points transiently by using the function of mutual switching of the phase-locked loops, that is, the first frequency point and the second frequency point are switched smoothly for data transmission.
S402: if the wireless ad hoc network forwarding device is a service initiating device, first service data is sent to a next-level wireless ad hoc network forwarding device at a first frequency point in any air interface time slot, and second service data is sent at a second frequency point at intervals of one time slot.
In the process of implementing S402 specifically, if the wireless ad hoc network forwarding device is a service initiating device, the wireless ad hoc network forwarding device sends first service data to the next wireless ad hoc network forwarding device at a first frequency point in any air interface time slot based on a link transmission rule.
The second service data may be service information or link information.
S403: if the wireless ad hoc network forwarding device is a first-time forwarding device, receiving first service data issued by the service initiating device, forwarding the first service data to the next-stage wireless ad hoc network forwarding device at a first frequency point by two time slots at intervals, and sending second service data to the next-stage wireless ad hoc network forwarding device at a second frequency point in the next frame of adjacent time slots.
In the process of specifically implementing S403, the first wireless ad hoc network forwarding device forwards the first service data by using the first frequency point, and sends the second service data to the next wireless ad hoc network forwarding device at the second frequency point in the adjacent time slot, and the first wireless ad hoc network forwarding device does not need to scan between the first frequency point and the second frequency point, thereby avoiding data loss caused by scanning frequency points in the data transmission process.
Furthermore, the first wireless ad hoc network forwarding device forwards data synchronously according to the receiving time slot, so that the time for receiving the data and the time for sending the data by the front and the back wireless ad hoc network forwarding devices are not conflicted.
Different wireless ad hoc network forwarding devices are specifically realized:
also taking TDD as an example, in S403, if the wireless ad hoc network forwarding device is the first-time forwarding device, the process of receiving the service data sent by the service initiating device and forwarding the first service data to the next-stage wireless ad hoc network forwarding device at the first frequency point by two time slots is as follows:
firstly, a wireless ad hoc network forwarding device receives first service data sent by a service initiating device at a first frequency point, and determines a time slot for receiving the first service data as a first time slot.
Because the number of the wireless ad hoc network forwarding devices is multiple, no matter which time slot of the wireless ad hoc network forwarding device receives the first service data, the time slot receiving the first service data is determined as the first time slot, and then other time slots are determined, taking TDD as an example, 4 time slots can be determined.
And secondly, the wireless ad hoc network forwarding device synchronizes the time sequence with other wireless ad hoc network forwarding devices according to the first time slot.
And the wireless ad hoc network forwarding device performs time alignment and synchronization with the time slots of other wireless ad hoc network forwarding devices according to the first time slot, namely, the first-transmitting wireless ad hoc network forwarding device is aligned with the first time slot of the next-stage wireless ad hoc network forwarding device according to the fourth time slot.
And finally, the wireless ad hoc network forwarding device forwards the first service data to the next-stage wireless ad hoc network forwarding device at a first frequency point in a fourth time slot of the current frame and the first time slot which are separated by two time slots.
S404: if the wireless ad hoc network forwarding device is not a first-time forwarding device, after receiving the first service data and the second service data forwarded by the upper-level wireless ad hoc network forwarding device, respectively forwarding the first service data at two time slots at a first frequency point and forwarding the second service data at a second frequency point.
In the process of implementing S404 specifically, when the wireless ad hoc network forwarding device is a non-originating device, the process of forwarding the first service data to the next-stage wireless ad hoc network forwarding device is as follows:
firstly, the wireless ad hoc network forwarding device and the upper-level wireless ad hoc network forwarding device establish time sequence synchronization.
Then, the wireless ad hoc network forwarding device respectively receives first service data forwarded by the previous wireless ad hoc network device at a first frequency point and second service data forwarded by the previous wireless ad hoc network device at a second frequency point based on two time slots determined by the time sequence synchronization.
And finally, the wireless ad hoc network forwarding device takes the receiving time slot as a reference, respectively transmits the first service data to the next wireless ad hoc network forwarding device at two time slots at intervals by using a first frequency point, and transmits the second service data to the next wireless ad hoc network forwarding device at a second frequency point.
The wireless ad hoc network forwarding devices which are not forwarded for the first time synchronously receive and forward data according to the receiving time slots, so that the time for receiving and transmitting the data by the front and rear wireless ad hoc network forwarding devices is not conflicted.
The wireless ad hoc network forwarding device is a non-primary forwarding device, the first service data is forwarded to the next wireless ad hoc network forwarding device at a first frequency point, the second service data is forwarded to the next wireless ad hoc network forwarding device at a second frequency point, wireless connection of the current wireless ad hoc network forwarding device and the next wireless ad hoc network forwarding device is achieved, time conflict between forwarding of the first service data and forwarding of the second service data by the front wireless ad hoc network forwarding device and the forwarding of the second service data by the back wireless ad hoc network forwarding device is avoided, and the purpose of transmission of the first service data and the second service data is guaranteed to be completed.
The embodiment of the invention discloses a data transmission method, if a wireless ad hoc network forwarding device is a service initiating device, first service data is sent to a next-stage wireless ad hoc network forwarding device at any time slot, second service data is sent at an interval of one time slot, if the wireless ad hoc network forwarding device is a first forwarding device, the first service data is forwarded at two time slots, the second service data is sent at adjacent time slots, and after the other wireless ad hoc network forwarding devices receive the first service data and the second service data, the first service data and the second service data are forwarded at two adjacent time slots. According to the scheme, the link networking data and the service data are forwarded on different frequency points based on different forwarding rules, so that the link networking data and the service data do not conflict when being forwarded at the same time, parallel transmission of the link networking data and the service data is realized without mutual interference, and the timeliness of a link networking channel is improved.
It should be noted that the data transmission method executed in the embodiment of the present invention is not limited to the TDD hopping scheme with 4 timeslots, but is also applicable to other hopping schemes.
For convenience of understanding, based on the above specific process of forwarding the first service data and the second service data by the wireless ad hoc network forwarding device in fig. 4, taking TDD as an example, as shown in fig. 5, a schematic diagram of forwarding the first service data and the second service data by the wireless ad hoc network forwarding device is shown.
It should be noted that the solid arrow in fig. 5 is initiated based on the first frequency point F1, the forwarding of the first service data of the solid arrow is initiated based on the Tetra networking main link transmission rule, the dotted arrow is initiated based on the second frequency point F2, and the forwarding of the second service data of the dotted arrow is forwarded based on the concurrent link transmission rule.
The first service data forwarding is based on a Tetra networking main link transmission rule, the second service data forwarding is based on a concurrent link transmission rule, and the effect that the first service data and the second service data are forwarded in parallel and do not interfere with each other can be achieved in the whole data forwarding process.
The wireless ad hoc network forwarding devices are a device 1, a device 2, a device 3 and a device 4, respectively, wherein the device 1 is a first forwarding device, and the device 2, the device 3 and the device 4 are non-first forwarding devices.
Based on the process of forwarding the first service data and the second service data by the wireless ad hoc network forwarding device, the specific method is as follows:
the process of forwarding the first service data comprises the following steps:
the device 1 receives first service data sent by a service initiating device at a first frequency point, determines a time slot for receiving the first service data as a first time slot, synchronizes the time slots according to the received time slots, separates two time slots based on a time slot skipping rule, and forwards the first service data to the device 2 at a fourth time slot of a first frame.
When the device 2 receives the first service data forwarded by the device 1, the time slot of the received first service data is determined as a first time slot, the time slot is synchronized according to the received time slot, the device 2 separates two time slots based on a time slot skip rule, and the first service data is forwarded to the device 3 at a first frequency point in a fourth time slot of a first frame.
When the device 3 receives the first service data forwarded by the device 2, the time slot of the received first service data is determined as a first time slot, and the device 3 separates two time slots based on a time slot skip rule according to the synchronous time sequence of the received time slots, and forwards the first service data to the device 4 at a first frequency point in a fourth time slot of a first frame.
When the device 4 receives the first service data forwarded by the device 1, the time slot of the received first service data is determined as a first time slot, the time slot is synchronized according to the received time slot, the device 4 separates two time slots based on a time slot skip rule, and the first service data is forwarded to a next device at a first frequency point in a fourth time slot of a first frame.
And the process of forwarding the second service data comprises the following steps:
after forwarding the first service data, the device 1 sends second service data to the device 2 at a second frequency point in a second time slot of a second frame.
The device 2 receives the second service data at the third time slot, and forwards the second service data at the second frequency point at the second time slot of the next frame after 2 time slots are separated.
The device 3 receives the second service data in the third time slot, and forwards the second service data at the second frequency point in the second time slot of the next frame after 2 time slots are separated.
The device 4 receives the second service data at the third time slot, and forwards the second service data at the second frequency point at the second time slot of the next frame after 2 time slots are separated.
The first-sending wireless ad hoc network forwarding device forwards first service data at a first frequency point, forwards second data at a second frequency point, and ensures synchronous time slots according to a issuing principle of two time slots at intervals by other wireless ad hoc network forwarding devices.
In the embodiment of the invention, the second service data is transmitted by the second frequency point according to the time slot staggered rule in the process of transmitting the first service data by the first frequency point in the wireless ad hoc network device, so that the first service data and the second service data are transmitted in parallel on the whole link without interference, and the channel capacity and the service transmission capacity are improved.
Based on the data transmission method disclosed in fig. 4 in the embodiment of the present invention, the embodiment of the present invention also correspondingly discloses a wireless ad hoc network forwarding device, as shown in fig. 6, the wireless ad hoc network forwarding device may include:
a receiving module 601, configured to receive first service data sent by a service initiating device and second service data sent by a previous-stage wireless ad hoc network forwarding device when the wireless ad hoc network forwarding device is a forwarding device;
the first passive issuing module 602 is configured to, when the wireless ad hoc network forwarding device is a first-time forwarding device, forward first service data to a next-stage wireless ad hoc network forwarding device at a first frequency point by two time slots, and send second service data to the next-stage wireless ad hoc network forwarding device at a second frequency point in an adjacent time slot of a next frame.
The second passive issuing module 603 is configured to, when the wireless ad hoc network forwarding device is a non-primary forwarding device, after the receiving module receives the first service data and the second service data forwarded by the upper-stage wireless ad hoc network forwarding device, respectively forward the first service data at the first frequency point at two time slots at an interval, and forward the second service data at the second frequency point.
And a timing synchronization module 604, configured to perform time slot synchronization with other wireless networking forwarding devices.
Optionally, the wireless ad hoc network forwarding device further includes an active issuing module.
And the active issuing module is used for sending first service data to the next-stage wireless ad hoc network forwarding device at any empty slot by a first frequency point and issuing second service data by a second frequency point at intervals of one time slot when the wireless ad hoc network forwarding device is a service initiating device.
Further, the second passive issuing module 603 is specifically configured to establish timing synchronization with the previous level of wireless ad hoc network forwarding device when the wireless ad hoc network forwarding device is a non-primary forwarding device; respectively receiving first service data forwarded by a previous-stage wireless ad hoc network device at a first frequency point and second service data forwarded by the previous-stage wireless ad hoc network device at a second frequency point based on two time slots determined by time sequence synchronization; and respectively transmitting the first service data to the next wireless ad hoc network forwarding device at the first frequency point and transmitting the second service data to the next wireless ad hoc network forwarding device at the second frequency point by taking the receiving time slot as a reference and separating two time slots.
Optionally, the wireless ad hoc network forwarding device further includes a configuration module and a switching module.
The configuration module is used for utilizing two phase-locked loops to pre-configure a first frequency point and a second frequency point, wherein each phase-locked loop corresponds to one frequency point, the first frequency point is used for transmitting first service data, and the second frequency point is used for transmitting second service data;
and the switching module is used for switching the two phase-locked loops through a switch so as to switch the first frequency point and the second frequency point for data transmission.
The embodiment of the invention discloses a wireless ad hoc network forwarding device, which receives first service data sent by a service initiating device if the wireless ad hoc network forwarding device is a first-time forwarding device, forwards the first service data to a lower-level wireless ad hoc network forwarding device at a first frequency point at two time slots at intervals, sends second service data to the lower-level wireless ad hoc network forwarding device at a second frequency point in the next frame of adjacent time slots, and forwards the first service data at the first frequency point and forwards the second service data at the second frequency point at two time slots after receiving the first service data and the second service data forwarded by the upper-level wireless ad hoc network forwarding device if the wireless ad hoc network forwarding device is a non-first-time forwarding device. By the scheme, the link networking data and the service data are forwarded on different frequency points based on different forwarding rules, so that the link networking data and the service data do not conflict when being forwarded at the same time, parallel transmission of the link networking data and the service data is realized without mutual interference, and the timeliness of a link networking channel is improved.
The embodiment of the invention also discloses a terminal, which comprises a memory and a processor, wherein the memory is used for storing the computer program; the processor is configured to execute any of the above-described embodiments of the data transmission method according to a computer program stored in the memory.
The embodiment of the invention also discloses a terminal, which comprises a memory and a processor, wherein the memory is used for storing the computer program, and the processor is used for executing the data transmission method embodiment according to the computer program stored in the memory.
The embodiment of the invention also discloses a storage medium, wherein a computer program is stored on the storage medium, and when the computer program is executed by a processor, the embodiment of the data transmission method is realized.
The embodiments of the present invention are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It should be noted that, in the present invention, a module or a sub-module described as a separate component may or may not be physically separated, and a component as a module or a sub-module may or may not be a physical module or sub-module, and may be located in one place, or may also be distributed on a plurality of network modules or sub-modules. Some or all of the modules or sub-modules can be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, each functional module or sub-module in each embodiment of the present invention may be integrated into one processing module, or each module or sub-module may exist alone physically, or two or more modules or sub-modules may be integrated into one module. The integrated modules or sub-modules may be implemented in the form of hardware, or may be implemented in the form of software functional modules or sub-modules.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A data transmission method is applied to a wireless ad hoc network forwarding device, and comprises the following steps:
if the wireless ad hoc network forwarding device is a first-time forwarding device, receiving first service data issued by a service initiating device, forwarding the first service data to a next-stage wireless ad hoc network forwarding device at a first frequency point by two time slots at intervals, and sending second service data to the next-stage wireless ad hoc network forwarding device at a second frequency point in next frame of adjacent time slots;
if the wireless ad hoc network forwarding device is a non-first-time forwarding device, after receiving the first service data and the second service data forwarded by the upper-level wireless ad hoc network forwarding device, respectively, two time slots are separated to forward the first service data at the first frequency point, and forward the second service data at the second frequency point.
2. The method of claim 1, further comprising:
and if the wireless ad hoc network forwarding device is a service initiating device, the first service data is sent to the next-stage wireless ad hoc network forwarding device at the first frequency point in any air interface time slot, and the second service data is sent at the second frequency point at intervals of one time slot.
3. The method of claim 1, wherein if the wireless ad hoc network forwarding device is a non-first time forwarding device, after receiving the first service data and the second service data forwarded by a previous wireless ad hoc network forwarding device, respectively, two time slots are separated to forward the first service data at the first frequency point and forward the second service data at the second frequency point, the method includes:
if the wireless ad hoc network forwarding device is a non-primary forwarding device, the wireless ad hoc network forwarding device and a previous wireless ad hoc network forwarding device establish time sequence synchronization;
the wireless ad hoc network forwarding device respectively receives the first service data forwarded by the previous wireless ad hoc network device at the first frequency point and the second service data forwarded by the previous wireless ad hoc network device at the second frequency point based on the two time slots determined by the time sequence synchronization;
the wireless ad hoc network forwarding device takes a receiving time slot as a reference, and forwards the first service data to a next wireless ad hoc network forwarding device at two time slots at intervals respectively by using the first frequency point, and forwards the second service data to the next wireless ad hoc network forwarding device at the second frequency point.
4. The method of claim 1, further comprising:
the first frequency point and the second frequency point are configured in advance by utilizing two phase-locked loops, each phase-locked loop corresponds to one frequency point, the first frequency point is used for transmitting the first service data, and the second frequency point is used for transmitting the second service data;
correspondingly, in the data transmission process, the two phase-locked loops are switched through a switch so as to switch the first frequency point and the second frequency point for data transmission.
5. A wireless ad hoc network forwarding device, comprising:
a receiving module, configured to receive first service data sent by a service initiating device and second service data sent by a previous-stage wireless ad hoc network forwarding device when the wireless ad hoc network forwarding device is a forwarding device;
the first passive issuing module is used for transmitting the first service data to a next-stage wireless ad hoc network transmitting device at a first frequency point by two time slots at intervals when the wireless ad hoc network transmitting device is a first transmitting device, and transmitting the second service data to the next-stage wireless ad hoc network transmitting device at a second frequency point in the next frame of adjacent time slots;
a second passive issuing module, configured to, when the wireless ad hoc network forwarding device is a non-first-time forwarding device, after the receiving module receives the first service data and the second service data forwarded by the previous-stage wireless ad hoc network forwarding device, respectively forward the first service data at a first frequency point at two time slots at an interval, and forward the second service data at a second frequency point;
and the time sequence synchronization module is used for carrying out time slot synchronization with other wireless networking forwarding devices.
6. The apparatus of claim 5, further comprising:
and the active issuing module is used for sending first service data to the next-stage wireless ad hoc network forwarding device at any empty slot by a first frequency point and issuing second service data by a second frequency point at intervals of one time slot when the wireless ad hoc network forwarding device is a service initiating device.
7. The apparatus according to claim 5, wherein the second passive delivery module is specifically configured to establish timing synchronization with a previous wireless ad hoc network forwarding device when the wireless ad hoc network forwarding device is a non-primary forwarding device; respectively receiving the first service data forwarded by the previous wireless ad hoc network device at the first frequency point and the second service data forwarded by the previous wireless ad hoc network device at the second frequency point based on the two time slots determined by the time sequence synchronization; and respectively transmitting the first service data to the next-stage wireless ad hoc network forwarding device at two time slots at intervals by taking the receiving time slot as a reference, and transmitting the second service data to the next-stage wireless ad hoc network forwarding device at the second frequency point.
8. The apparatus of claim 5, further comprising:
the configuration module is used for utilizing two phase-locked loops to pre-configure the first frequency point and the second frequency point, wherein each phase-locked loop corresponds to one frequency point, the first frequency point is used for transmitting the first service data, and the second frequency point is used for transmitting the second service data;
and the switching module is used for switching the two phase-locked loops through a switch in the data transmission process so as to switch the first frequency point and the second frequency point for data transmission.
9. A terminal, comprising: a memory and a processor;
the memory is used for storing a computer program;
the processor is configured to perform the data transmission method of any one of claims 1 to 4 in accordance with a computer program stored in the memory.
10. A storage medium on which a computer program is stored, which, when executed by a processor, implements a data transmission method as claimed in any one of claims 1 to 4.
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