CN116760507B - Coding modulation parameter determining method and routing equipment based on intra-frame index modulation - Google Patents

Coding modulation parameter determining method and routing equipment based on intra-frame index modulation Download PDF

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Publication number
CN116760507B
CN116760507B CN202311034543.0A CN202311034543A CN116760507B CN 116760507 B CN116760507 B CN 116760507B CN 202311034543 A CN202311034543 A CN 202311034543A CN 116760507 B CN116760507 B CN 116760507B
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symbol data
modulation parameter
signal
target symbol
code modulation
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CN116760507A (en
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徐方鑫
冉建军
杜劲波
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Shanghai Langli Semiconductor Co ltd
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Shanghai Langli Semiconductor Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/60—Router architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Abstract

The application discloses a code modulation parameter determining method based on intra-frame index modulation and a routing device, which are applied to the routing device, wherein the routing device at least comprises a Wi-Fi antenna and a Signature side link antenna, and the method comprises the following steps: transmitting target symbol data in a Wi-Fi wireless frame to a receiving terminal through a Wi-Fi antenna based on the code modulation parameters; when the feedback signal is not monitored by the signal side link antenna, determining the next symbol data corresponding to the target symbol data as the target symbol data; when the signal side link antenna monitors a feedback signal fed back by the receiving terminal, updating the code modulation parameter to obtain the updated code modulation parameter, and transmitting target symbol data in the Wi-Fi wireless frame to the receiving terminal through the Wi-Fi antenna based on the code modulation parameter. The application can improve the success rate of Wi-Fi wireless frame transmission.

Description

Coding modulation parameter determining method and routing equipment based on intra-frame index modulation
Technical Field
The application relates to the technical field of digital transmission, in particular to a coding modulation parameter determining method and routing equipment based on intra-frame index modulation.
Background
In conventional Wi-Fi transmission, only one fixed coded modulation parameter (Modulation and Coding Scheme, MCS) is used per Wi-Fi radio frame. MCS affects the ability of the wireless transmission to resist the effects of the channel. If the MCS is lower, it will have more margin. Conversely, the higher the MCS, the lower the margin. Therefore, if MCS setting is too high in a scene of transmitting a long frame, resulting in transmission failure, channel resources are wasted.
Existing MCS adjustment is based on a frame level, each Wi-Fi radio frame including a training field and an MCS field in the physical layer preamble. The physical layer field is sent according to the default lowest MCS, the rate sender and receiver are both known and fixed, and the receiver can receive the field information by default. Then in the data field part, the subsequent symbols (symbols) are modulated and encoded according to the MCS configuration indicated by the preamble part, which means that higher order modulation schemes and higher redundancy efficiency encoding rates are used, if the MCS is higher, which means that the amount of information contained in a single symbol is higher. If the MCS is lower, then a lower modulation scheme and redundancy coding is used instead. For the receiver, the MCS value adopted by the frame data field is first obtained by receiving the preamble of the frame. And then adopting a corresponding demodulation method and a decoding method to decode data according to the MCS value. And one feedback link may be enabled as a persistent feedback link for the ACK. If an error occurs in a block in the current frame, the block is retransmitted directly in the frame without waiting for the end of the frame.
However, implementing this embodiment, when the block with transmission error is retransmitted, the MCS value at the time of transmission error is still used, and the same MCS value is used to transmit the block, so that the probability of Wi-Fi radio frame transmission failure is still high.
Disclosure of Invention
The embodiment of the application provides a coding modulation parameter determining method and routing equipment based on intra-frame index modulation, which can timely adjust coding modulation parameters, thereby improving the success rate of Wi-Fi frame transmission.
According to an aspect of the embodiment of the present application, there is provided a method for determining a code modulation parameter based on intra-frame index modulation, which is applied to a routing device, where the routing device at least includes a Wi-Fi antenna and a Signature side link antenna, and the method includes:
transmitting target symbol data in a Wi-Fi wireless frame to a receiving terminal through the Wi-Fi antenna based on the code modulation parameters; wherein, the Wi-Fi wireless frame comprises at least one symbol data; and each symbol data in the Wi-Fi wireless frame has a fixed sending sequence;
when the signal side-chain antenna does not monitor the feedback signal fed back by the receiving terminal, determining the next symbol data corresponding to the target symbol data as target symbol data, and executing the step of sending the target symbol data in the Wi-Fi wireless frame to the receiving terminal through the Wi-Fi antenna based on the code modulation parameter; wherein the feedback signal is used for indicating that the transmission of the target symbol data fails;
when the signal side chain antenna monitors a feedback signal fed back by the receiving terminal, updating the code modulation parameter to obtain an updated code modulation parameter, and executing the step of transmitting target symbol data in a Wi-Fi wireless frame to the receiving terminal through the Wi-Fi antenna based on the code modulation parameter; wherein the updated coded modulation parameter is less than the initial coded modulation parameter.
As an optional implementation manner, the routing device further includes a Wi-Fi link and a Signature side link, the Wi-Fi link is connected to the Wi-Fi antenna, the Signature side link is connected to the Signature side link antenna, and the Wi-Fi link is connected to the Signature side link.
As an optional implementation manner, the mode that the signaling side link antenna monitors the feedback signal fed back by the receiving terminal is specifically:
receiving an independent link signal sent by the Wi-Fi link through the signal side link;
receiving a monitoring signal through the signal side link antenna;
the independent link signals in the monitoring signals are subtracted to obtain signals to be identified;
identifying whether the signal to be identified is a feedback signal or not to obtain an identification result;
and if the identification result indicates that the signal to be identified is the feedback signal, determining that the signal side link antenna monitors the feedback signal fed back by the receiving terminal.
As an optional implementation manner, the determining the next symbol data corresponding to the target symbol data as target symbol data includes:
determining whether next symbol data corresponding to the target symbol data exists;
if so, determining the next symbol data as target symbol data;
and if the target symbol data does not exist, determining that all the target symbol data in the Wi-Fi wireless frame are transmitted.
As an optional implementation manner, after the determining that all the target symbol data in the Wi-Fi radio frame are transmitted, the method further includes:
monitoring the ACK signal fed back by the receiving terminal within a preset duration; the preset duration starts to be counted from the fact that all target symbol data in the Wi-Fi wireless frame are confirmed to be transmitted completely;
if the ACK signal is received, the code modulation parameter is adjusted to obtain an adjusted first code modulation parameter; wherein the first code modulation parameter is greater than the code modulation parameter;
if the ACK signal is not received, the code modulation parameter is adjusted to obtain an adjusted second code modulation parameter; wherein the second coded modulation parameter is less than the coded modulation parameter.
According to another aspect of the embodiment of the present application, there is further provided a routing device, including a Wi-Fi antenna, a Signature side chain antenna, a transmitting unit, a determining unit, and an updating unit, where:
the sending unit is used for sending target symbol data in the Wi-Fi wireless frame to the receiving terminal through the Wi-Fi antenna based on the code modulation parameter; wherein, the Wi-Fi wireless frame comprises at least one symbol data; and each symbol data in the Wi-Fi wireless frame has a fixed sending sequence;
the determining unit is configured to determine, when the signaling side-chain antenna does not hear a feedback signal fed back by the receiving terminal, next symbol data corresponding to the target symbol data as target symbol data, and control the sending unit to execute the encoding modulation parameter-based sending of the target symbol data in the Wi-Fi radio frame to the receiving terminal through the Wi-Fi antenna; wherein the feedback signal is used for indicating that the transmission of the target symbol data fails;
the updating unit is configured to update the code modulation parameter when the signaling side-chain antenna monitors a feedback signal fed back by the receiving terminal, obtain an updated code modulation parameter, and control the sending unit to execute the step of sending target symbol data in a Wi-Fi radio frame to the receiving terminal through the Wi-Fi antenna based on the code modulation parameter; wherein the updated coded modulation parameter is less than the initial coded modulation parameter.
As an optional implementation manner, the routing device further includes a Wi-Fi link and a Signature side link, the Wi-Fi link is connected to the Wi-Fi antenna, the Signature side link is connected to the Signature side link antenna, and the Wi-Fi link is connected to the Signature side link.
As an optional implementation manner, the mode that the signaling side link antenna monitors the feedback signal fed back by the receiving terminal is specifically:
receiving an independent link signal sent by the Wi-Fi link through the signal side link;
receiving a monitoring signal through the signal side link antenna;
the independent link signals in the monitoring signals are subtracted to obtain signals to be identified;
identifying whether the signal to be identified is a feedback signal or not to obtain an identification result;
and if the identification result indicates that the signal to be identified is the feedback signal, determining that the signal side link antenna monitors the feedback signal fed back by the receiving terminal.
As an optional implementation manner, the determining unit determines, as the target symbol data, the next symbol data corresponding to the target symbol data specifically includes:
determining whether next symbol data corresponding to the target symbol data exists;
if so, determining the next symbol data as target symbol data;
and if the target symbol data does not exist, determining that all the target symbol data in the Wi-Fi wireless frame are transmitted.
As an alternative embodiment, the determining unit is further configured to:
after the fact that all target symbol data in the Wi-Fi wireless frame are transmitted is determined, monitoring an ACK signal fed back by the receiving terminal within a preset duration; the preset duration starts to be counted from the fact that all target symbol data in the Wi-Fi wireless frame are confirmed to be transmitted completely;
if the ACK signal is received, the code modulation parameter is adjusted to obtain an adjusted first code modulation parameter; wherein the first code modulation parameter is greater than the code modulation parameter;
if the ACK signal is not received, the code modulation parameter is adjusted to obtain an adjusted second code modulation parameter; wherein the second coded modulation parameter is less than the coded modulation parameter.
In the embodiment of the application, the target symbol data in the Wi-Fi wireless frame can be sequentially sent to the receiving terminal based on the code modulation parameters, and the code modulation parameters are reduced after the feedback signals fed back by the receiving terminal are monitored, so that the transmission success rate of the residual target symbol data in the Wi-Fi wireless frame is improved, and the transmission success rate of the Wi-Fi wireless frame is further improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a flowchart of a method for determining a coding modulation parameter based on intra-frame index modulation according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a routing device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a Wi-Fi radio frame according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a self-interference cancellation link according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of another self-interference cancellation link according to an embodiment of the present application;
fig. 6 is a flowchart of a method for determining a coding modulation parameter based on intra-frame index modulation implemented by a routing device according to an embodiment of the present application;
fig. 7 is a flowchart of a method for determining a coding modulation parameter based on intra-frame index modulation by a receiving terminal according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of another routing device according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for determining a coding modulation parameter based on intra-frame index modulation according to an embodiment of the present application. It should be noted that the embodiments of the present application may be applied to a routing device, where the routing device includes at least a Wi-Fi antenna and a Signature side-chain antenna.
The process of the method for determining the coding modulation parameters based on the intra-frame index modulation according to the embodiment of the application shown in fig. 1 includes:
and step S101, transmitting target symbol data in the Wi-Fi wireless frame to a receiving terminal through the Wi-Fi antenna based on the code modulation parameter.
In the embodiment of the application, the Wi-Fi wireless frame comprises at least one symbol data; and each symbol data in the Wi-Fi radio frame has a fixed transmission sequence. The target symbol data may be target symbol data that is currently required to be transmitted.
Referring to fig. 2 and fig. 3 together, fig. 2 is a schematic structural diagram of a routing device according to an embodiment of the present application, and it can be seen that the routing device at least includes a Wi-Fi antenna and a Signature side-chain antenna.
Fig. 3 is a schematic structural diagram of a Wi-Fi radio frame provided in an embodiment of the present application, where the Wi-Fi radio frame includes a preamble portion and a data field, the preamble portion is a training field, the data field portion includes a plurality of symbol data and one frame check, and further includes an MCS before the first symbol data, and when a feedback signal (i.e., signature feedback) fed back by a receiving terminal is monitored, the MCS may be added before the symbol data corresponding to the feedback signal and having a transmission failure, and a value of the added MCS is smaller than the MCS before the symbol data 1.
For example, wi-Fi radio frames may be in 802.11 index modulated frame format; the MCS field is migrated from the frame preamble to the data field of the Wi-Fi radio frame and each MCS represents only the rate (i.e. modulation order and redundancy coding efficiency) at which symbols in a range following it are used. In the symbol data 1, we embed the first MCS, and since the sender successfully sends the data to the receiver in the transmission process from the symbol data 1 to the symbol data 3, the receiver does not have a feedback signal, so that the MCS adjustment is not needed. But when the symbol data 3 is transmitted, and the receiver finds that the last symbol data received by the receiver detects an error, the MCS is adjusted (i.e., lowered) in the symbol data after the last symbol data, and the value of the MCS is embedded in the next symbol data.
And step S102, when the signal side-chain antenna does not monitor the feedback signal fed back by the receiving terminal, determining the next symbol data corresponding to the target symbol data as target symbol data, and executing step S101.
In the embodiment of the present application, the feedback signal is used to indicate that the transmission of the target symbol data fails.
In the embodiment of the application, the routing equipment further comprises a Wi-Fi link and a signal side link, wherein the Wi-Fi link is connected with the Wi-Fi antenna, the signal side link is connected with the signal side link antenna, and the Wi-Fi link is connected with the signal side link.
Referring to fig. 4 and fig. 5 together, fig. 4 is a schematic structural diagram of a self-interference cancellation link, where: when the Wi-Fi link is in a transmitting state, a transmitting signal of the link may cause self-interference to a receiving antenna of the signal side link. Here we introduce self-interference cancellation techniques, we will additionally tap an independent link between the Wi-Fi link and the Wi-Fi antenna, which is a signal that is homologous to the self-interference, i.e. both are almost identical. And then subtracting the extracted signal of the independent link on the basis of the signal received by the side link, thereby completing self-cancellation.
Fig. 5 is a schematic structural diagram of another self-interference cancellation link, in which: the self-interference comes from the interference of the signal side link antenna to the Wi-Fi receiving link, where we do not employ self-cancellation techniques. Since some redundancy coding is performed during Wi-Fi transmission, each bit of information is redundant to the symbols.
Because the signal is sent as a pulse time sequence with very short time, only the symbols in a short time range are interfered, the influence range is small, and the receiver can decode the information of the redundant part. And therefore, a self-cancellation module is not required to be additionally added to realize feedback transmission of the side link.
The embodiment of the application constructs a feedback link, wherein two links exist, one link is a Wi-Fi link, the other link is a side link of a signal, and the two links work on the same frequency band. Through the self-cancellation technology and the redundancy coding technology, the two links can avoid self-interference in the transmission process and can work simultaneously.
As an optional implementation manner, the mode that the signaling side link antenna monitors the feedback signal fed back by the receiving terminal may specifically be:
receiving an independent link signal sent by the Wi-Fi link through the signal side link;
receiving a monitoring signal through the signal side link antenna;
the independent link signals in the monitoring signals are subtracted to obtain signals to be identified;
identifying whether the signal to be identified is a feedback signal or not to obtain an identification result;
and if the identification result indicates that the signal to be identified is the feedback signal, determining that the signal side link antenna monitors the feedback signal fed back by the receiving terminal.
As an optional implementation manner, step S102 determines the next symbol data corresponding to the target symbol data as target symbol data, including:
determining whether next symbol data corresponding to the target symbol data exists;
if so, determining the next symbol data as target symbol data;
and if the target symbol data does not exist, determining that all the target symbol data in the Wi-Fi wireless frame are transmitted.
Optionally, after determining that all the target symbol data in the Wi-Fi radio frame is transmitted, the following steps may be further performed:
monitoring the ACK signal fed back by the receiving terminal within a preset duration; the preset duration starts to be counted from the fact that all target symbol data in the Wi-Fi wireless frame are confirmed to be transmitted completely;
if the ACK signal is received, the code modulation parameter is adjusted to obtain an adjusted first code modulation parameter; wherein the first code modulation parameter is greater than the code modulation parameter;
if the ACK signal is not received, the code modulation parameter is adjusted to obtain an adjusted second code modulation parameter; wherein the second coded modulation parameter is less than the coded modulation parameter.
And step S103, when the signal side chain antenna monitors the feedback signal fed back by the receiving terminal, updating the code modulation parameter to obtain an updated code modulation parameter, and executing step S101.
In the embodiment of the present application, the updated code modulation parameter is smaller than the original code modulation parameter.
Optionally, during the transmission process, the transmitting end (routing device) firstly performs data transmission according to an initial MCS, and at the beginning of the transmission process, monitors the feedback of the signal. This transmission and listening process continues until the transmission is completed. During transmission, if a signal is detected, this means that the receiver checks for transmission failure, and then requires the sender to lower the MCS, even if the sender would lower the MCS, and identify the MCS in the next symbol, and continue transmission of the symbol. If no signal is detected, meaning that the receiver has not checked for transmission failure, the current MCS may continue to successfully transmit, and then the MCS may be kept unchanged for further transmission.
When the transmission is completed, it is judged whether or not the reception is successful by an Acknowledgement Code (ACK). If the sender gets the confirmation code, it represents that the transmission is successful. At this point the sender may increase the MCS during the next round of transmission. If the sender does not obtain the acknowledgement code, the acknowledgement code times out. Then, if the transmission fails after the MCS adjustment, the MCS from which the next transmission starts is reduced to ensure the successful transmission of the next round.
In the receiving process, the receiving end (receiving terminal) firstly receives data according to the initial MCS, and in the receiving process, the correctness of each symbol is continuously detected. The correctness can be checked by a coding layer, can be checked by adopting a characteristic bit method, such as parity check, cyclic redundancy check and the like, and can be checked by adopting a coding rule, such as Manchester coding rule, or a rule that the condition of continuous 1 or continuous 0 and the like does not occur. The receiving side continuously makes the correctness judgment of each received symbol before the transmission process is not completed, and if a check error occurs, a feedback signal is sent back to inform the transmitting side of reducing the MCS transmitting rate. If no verification errors occur, the transmission is still successful, and no feedback is continued for reception.
After the sender finishes sending, if the transmission process is finished, the local process performs frame verification on the whole wireless frame once again, and if the verification is successful, a confirmation code is fed back to the sender. If the verification fails, no acknowledgement code is fed back.
For example, referring to fig. 6 and fig. 7 together, fig. 6 is a flowchart illustrating a method for determining a coding modulation parameter based on intra-frame index modulation implemented by a routing device according to an embodiment of the present application, and the method is specifically as follows:
(1) the sender (routing equipment) starts symbol data transmission by adopting the initial MCS and monitors the feedback of the Signature at the same time;
(2) judging whether the transmission is finished or not;
(3) if not, determining that the transmission is not finished, and judging whether a Signature exists or not;
(4) if yes, reducing MCS and continuing to transmit, namely executing the steps (1) - (2);
(5) if not, keeping the MCS unchanged and continuously transmitting, and executing the steps (1) - (2);
(6) if yes, judging whether the transmission is successful;
(7) if successful, heightening MCS to transmit next time;
(8) if not, the MCS is lowered for the next transmission.
Fig. 7 is a flowchart of a method for determining a coding modulation parameter based on intra-frame index modulation by a receiving terminal according to an embodiment of the present application, specifically:
(1) the receiving party (receiving terminal) adopts MCS to start receiving symbol data, and performs correctness check on each symbol data;
(2) judging whether the transmission is finished or not;
(3) if not, determining that the transmission is not finished, and judging whether a check error exists or not;
(4) if yes, feeding back the Signature, and executing the steps (1) - (2);
(5) if not, not feeding back, and executing the steps (1) - (2);
(6) if yes, judging whether the transmission is successful;
(7) if successful, feeding back an ACK signal;
(8) if not, the ACK signal is not fed back.
Having described the method of the exemplary embodiment of the present application, a routing device of the exemplary embodiment of the present application will be described with reference to fig. 8, the routing device including a Wi-Fi antenna 801, a Signature side link antenna 802, a transmitting unit 803, a determining unit 804, and an updating unit 805, wherein:
the sending unit 803 is configured to send, to a receiving terminal, target symbol data in a Wi-Fi radio frame through the Wi-Fi antenna 801 based on a code modulation parameter; wherein, the Wi-Fi wireless frame comprises at least one symbol data; and each symbol data in the Wi-Fi wireless frame has a fixed sending sequence;
the determining unit 804 is configured to determine, when the signal side link antenna 802 does not monitor a feedback signal fed back by the receiving terminal, next symbol data corresponding to the target symbol data as target symbol data, and control the transmitting unit 803 to execute the sending of the target symbol data in a Wi-Fi radio frame to the receiving terminal through the Wi-Fi antenna based on the code modulation parameter; wherein the feedback signal is used for indicating that the transmission of the target symbol data fails;
the updating unit 805 is configured to update the code modulation parameter to obtain an updated code modulation parameter when the signaling side-chain antenna 802 monitors a feedback signal fed back by the receiving terminal, and control the sending unit 803 to execute the step of sending the target symbol data in the Wi-Fi radio frame to the receiving terminal through the Wi-Fi antenna based on the code modulation parameter; wherein the updated coded modulation parameter is less than the initial coded modulation parameter.
In the embodiment of the application, the routing equipment further comprises a Wi-Fi link and a signal side link, wherein the Wi-Fi link is connected with the Wi-Fi antenna, the signal side link is connected with the signal side link antenna, and the Wi-Fi link is connected with the signal side link.
As an optional implementation manner, the mode in which the signaling side link antenna 802 monitors the feedback signal fed back by the receiving terminal may specifically be:
receiving an independent link signal sent by the Wi-Fi link through the signal side link;
receiving a monitoring signal through the signal side link antenna;
the independent link signals in the monitoring signals are subtracted to obtain signals to be identified;
identifying whether the signal to be identified is a feedback signal or not to obtain an identification result;
and if the identification result indicates that the signal to be identified is the feedback signal, determining that the signal side link antenna monitors the feedback signal fed back by the receiving terminal.
As an optional implementation manner, the determining unit 804 determines, as the target symbol data, the next symbol data corresponding to the target symbol data specifically includes:
determining whether next symbol data corresponding to the target symbol data exists;
if so, determining the next symbol data as target symbol data;
and if the target symbol data does not exist, determining that all the target symbol data in the Wi-Fi wireless frame are transmitted.
As an alternative embodiment, the determining unit 804 is further configured to:
after the fact that all target symbol data in the Wi-Fi wireless frame are transmitted is determined, monitoring an ACK signal fed back by the receiving terminal within a preset duration; the preset duration starts to be counted from the fact that all target symbol data in the Wi-Fi wireless frame are confirmed to be transmitted completely;
if the ACK signal is received, the code modulation parameter is adjusted to obtain an adjusted first code modulation parameter; wherein the first code modulation parameter is greater than the code modulation parameter;
if the ACK signal is not received, the code modulation parameter is adjusted to obtain an adjusted second code modulation parameter; wherein the second coded modulation parameter is less than the coded modulation parameter.
In the description of the present application, it should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer readable storage medium executable by a processor. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Finally, it should be noted that: the above examples are only specific embodiments of the present application, and are not intended to limit the scope of the present application, but it should be understood by those skilled in the art that the present application is not limited thereto, and that the present application is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Furthermore, although the operations of the methods of the present application are depicted in the drawings in a particular order, this is not required to either imply that the operations must be performed in that particular order or that all of the illustrated operations be performed to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform.

Claims (6)

1. The method for determining the code modulation parameters based on the intra-frame index modulation is applied to a routing device, and the routing device at least comprises a Wi-Fi antenna and a Signature side link antenna, and comprises the following steps:
transmitting target symbol data in a Wi-Fi wireless frame to a receiving terminal through the Wi-Fi antenna based on the code modulation parameters; wherein, the Wi-Fi wireless frame comprises at least one symbol data; and each symbol data in the Wi-Fi wireless frame has a fixed sending sequence;
when the signal side-chain antenna does not monitor the feedback signal fed back by the receiving terminal, determining the next symbol data corresponding to the target symbol data as target symbol data, and executing the step of sending the target symbol data in the Wi-Fi wireless frame to the receiving terminal through the Wi-Fi antenna based on the code modulation parameter; wherein the feedback signal is used for indicating that the transmission of the target symbol data fails;
when the signal side chain antenna monitors a feedback signal fed back by the receiving terminal, updating the code modulation parameter to obtain an updated code modulation parameter, and executing the step of transmitting target symbol data in a Wi-Fi wireless frame to the receiving terminal through the Wi-Fi antenna based on the code modulation parameter; wherein the updated code modulation parameter is less than the initial code modulation parameter;
the routing equipment further comprises a Wi-Fi link and a signal side link, wherein the Wi-Fi link is connected with the Wi-Fi antenna, the signal side link is connected with the signal side link antenna, and the Wi-Fi link is connected with the signal side link;
the mode that the signal side link antenna monitors the feedback signal fed back by the receiving terminal is specifically as follows:
receiving an independent link signal sent by the Wi-Fi link through the signal side link;
receiving a monitoring signal through the signal side link antenna;
the independent link signals in the monitoring signals are subtracted to obtain signals to be identified;
identifying whether the signal to be identified is a feedback signal or not to obtain an identification result;
and if the identification result indicates that the signal to be identified is the feedback signal, determining that the signal side link antenna monitors the feedback signal fed back by the receiving terminal.
2. The method for determining a coded modulation parameter based on intra-frame index modulation according to claim 1, wherein the determining the next symbol data corresponding to the target symbol data as target symbol data comprises:
determining whether next symbol data corresponding to the target symbol data exists;
if so, determining the next symbol data as target symbol data;
and if the target symbol data does not exist, determining that all the target symbol data in the Wi-Fi wireless frame are transmitted.
3. The method for determining the coded modulation parameter based on intra-frame index modulation according to claim 2, wherein after determining that all the target symbol data in the Wi-Fi radio frame is transmitted, the method further comprises:
monitoring the ACK signal fed back by the receiving terminal within a preset duration; the preset duration starts to be counted from the fact that all target symbol data in the Wi-Fi wireless frame are confirmed to be transmitted completely;
if the ACK signal is received, the code modulation parameter is adjusted to obtain an adjusted first code modulation parameter; wherein the first code modulation parameter is greater than the code modulation parameter;
if the ACK signal is not received, the code modulation parameter is adjusted to obtain an adjusted second code modulation parameter; wherein the second coded modulation parameter is less than the coded modulation parameter.
4. The routing device comprises a Wi-Fi antenna, a Signature side link antenna, a sending unit, a determining unit and an updating unit, wherein:
the sending unit is used for sending target symbol data in the Wi-Fi wireless frame to the receiving terminal through the Wi-Fi antenna based on the code modulation parameter; wherein, the Wi-Fi wireless frame comprises at least one symbol data; and each symbol data in the Wi-Fi wireless frame has a fixed sending sequence;
the determining unit is configured to determine, when the signaling side-chain antenna does not hear a feedback signal fed back by the receiving terminal, next symbol data corresponding to the target symbol data as target symbol data, and control the sending unit to execute the encoding modulation parameter-based sending of the target symbol data in the Wi-Fi radio frame to the receiving terminal through the Wi-Fi antenna; wherein the feedback signal is used for indicating that the transmission of the target symbol data fails;
the updating unit is configured to update the code modulation parameter when the signaling side-chain antenna monitors a feedback signal fed back by the receiving terminal, obtain an updated code modulation parameter, and control the sending unit to execute the step of sending target symbol data in a Wi-Fi radio frame to the receiving terminal through the Wi-Fi antenna based on the code modulation parameter; wherein the updated code modulation parameter is less than the initial code modulation parameter;
the routing equipment further comprises a Wi-Fi link and a signal side link, wherein the Wi-Fi link is connected with the Wi-Fi antenna, the signal side link is connected with the signal side link antenna, and the Wi-Fi link is connected with the signal side link;
the mode that the signal side link antenna monitors the feedback signal fed back by the receiving terminal is specifically as follows:
receiving an independent link signal sent by the Wi-Fi link through the signal side link;
receiving a monitoring signal through the signal side link antenna;
the independent link signals in the monitoring signals are subtracted to obtain signals to be identified;
identifying whether the signal to be identified is a feedback signal or not to obtain an identification result;
and if the identification result indicates that the signal to be identified is the feedback signal, determining that the signal side link antenna monitors the feedback signal fed back by the receiving terminal.
5. The routing device according to claim 4, wherein the determining unit determines the next symbol data corresponding to the target symbol data as the target symbol data specifically includes:
determining whether next symbol data corresponding to the target symbol data exists;
if so, determining the next symbol data as target symbol data;
and if the target symbol data does not exist, determining that all the target symbol data in the Wi-Fi wireless frame are transmitted.
6. The routing device of claim 5, the determining unit further to:
after the fact that all target symbol data in the Wi-Fi wireless frame are transmitted is determined, monitoring an ACK signal fed back by the receiving terminal within a preset duration; the preset duration starts to be counted from the fact that all target symbol data in the Wi-Fi wireless frame are confirmed to be transmitted completely;
if the ACK signal is received, the code modulation parameter is adjusted to obtain an adjusted first code modulation parameter; wherein the first code modulation parameter is greater than the code modulation parameter;
if the ACK signal is not received, the code modulation parameter is adjusted to obtain an adjusted second code modulation parameter; wherein the second coded modulation parameter is less than the coded modulation parameter.
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