CN117715097A - Network communication connection method - Google Patents
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Abstract
The application discloses a network communication connection method, which belongs to the technical field of mobile communication. The transmitter assigns a sequence number to each transmitted data and waits for the receiver to acknowledge the sequence number for a certain time. If the acknowledgement is not received, repeatedly sending the data packet; and if the acknowledgement is received before the timer expires, releasing the cache. The receiver receives the data packet, and then reorganizes the data packet according to the sequence number, and transmits the data to an upper layer for use. Meanwhile, the method also comprises ACK retransmission based on a time window, time-sharing transmission, information self-adaptive bit rate method (transmission power self-adaptation, rate self-adaptation, flow control self-adaptation) and other contents, so that the downlink process rate of uplink and downlink data transmission can be effectively improved, the delay of a data packet is reduced, and the technical effect of user experience is improved.
Description
Technical Field
The present application relates to the field of mobile communications technologies, and in particular, to a network communication connection method.
Background
For packet PS services in the wireless domain, the transmission control protocol TCP is generally used. In wireless networks, characteristics of the wireless network such as high latency, variable data rates, asymmetry, latency spikes, and bandwidth jitter can all affect the performance of TCP. With the continuous development of data service usage, the quality of service QoS required by users will be higher and higher, and how to improve the transmission performance of TCP in radio bearers is important. And carrying out data transmission on uplink and downlink simultaneously, wherein the transmission process comprises an uploading process and a downloading process. The uplink process is that a terminal sends a data packet to a server, and after receiving an acknowledgement message ACK packet of the server, a terminal sliding window sends a new data packet; the downlink process is that the server sends a data packet to the terminal, and after receiving the ACK packet of the terminal, the server slides the window to send a new data packet. The server also transmits an ACK packet for the uplink data packet when transmitting the data packet, and the terminal also transmits an ACK packet for the downlink data packet when transmitting the data packet. Throughput performance of data transmission in uplink and downlink simultaneously is an important performance index for evaluating an antenna system. However, in carrying out the present invention, the inventors have found that the prior art method has at least the following problems: in the current network test, the downlink process rate of uplink and downlink data transmission is low and fluctuation is large, because the ACK of the downlink data packet is usually arranged behind the uplink data packet in the TCP layer of the terminal, so that the ACK of the downlink data packet is delayed, the downlink data transmission performance is seriously affected, and the user experience is poor.
The document with the prior art publication number of CN 102130756B provides a data transmission method and a data transmission device, and the method can prevent the ACK of a data packet from being blocked by a TCP layer of a receiving end to a certain extent by actively constructing the ACK and sending the ACK to the sending end after receiving the confirmation information fed back by the receiving end at a certain protocol layer, quicken a sliding window of the sending end, provide more sufficient data for an air interface, avoid the phenomenon that no data can be sent by the air interface, thereby improving the availability of the air, improving the downlink data transmission performance of uplink and downlink simultaneous data transmission and enhancing the user experience.
Although the above prior art scheme can achieve the improvement of downlink data transmission performance of uplink and downlink simultaneous data transmission to a certain extent through the structure of the prior art, the technical scheme actively constructs the ACK information to avoid the ACK of the data packet from being delayed by the TCP layer of the receiving end, thereby accelerating the sliding window of the transmitting end and providing sufficient data for an air interface. However, this solution also has some drawbacks, which are embodied as follows:
1. increasing network delay: the network delay is increased because the receiving end needs to wait for returning the ACK information;
2. increasing CPU overhead: actively constructing ACK information requires the CPU to perform computation and processing, thus incurring additional CPU overhead.
3. Network congestion may be masked: because the ACK information is actively constructed to quickly solve the problem of the TCP layer, the network congestion may be masked, and thus the problem of network congestion cannot be timely solved.
In view of the above related art, the inventors consider that the bit rate can be adaptively adjusted according to the network condition, so as to avoid the loss of the data packet, and parameters of the TCP protocol, such as the size of the transmission window, the sliding window, etc., can be adjusted, so that the data packet can be received and processed more quickly, thereby avoiding the problem of the loss of the data packet.
In view of this, we propose a network communication connection method.
Disclosure of Invention
1. Technical problem to be solved
The purpose of the present application is to provide a network communication connection method, which solves the technical problem in the above background technology, and realizes that the downlink process rate of uplink and downlink data transmission can be effectively improved, and the delay of a data packet is reduced, so that the technical effect of user experience is improved.
2. Technical proposal
The technical scheme of the application provides a network communication connection method, a sender allocates a serial number to each time of sending data, a receiver waits for allocating the serial number to the sender for confirmation in a specific time, and the sender stores the sent data in a cache;
if the confirmation of the receiver to the sender assigned serial number is not received within a specific time, repeatedly sending the data packet;
if the acknowledgement is received before the timer times out, the buffer occupied by the data packet is released;
the receiver receives the data packets, and then sequentially reorganizes the data packets according to the sequence numbers and transmits the data packets to an upper layer for use; adjusting the sending and receiving sequence of the data packet: in order to reduce the delay of the downlink data packet, the receiving end can realize the rapid receiving of the data packet, rather than waiting for the receiving of the uplink data packet and then receiving the uplink data packet;
the method further comprises the steps of: based on the ACK retransmission of the time window, immediately sending an ACK acknowledgement data packet after receiving the next data packet before the timer is overtime;
if the data packet is exactly transmitted to the receiving end of the ACK confirmation information, the ACK confirmation information is attached to the data packet and is immediately transmitted;
when the timer is overtime, the ACK confirmation information is immediately sent;
after the timer is accessed, a TTL signal with a certain frequency is input from a CP end, the timer is respectively connected with the address input ends of the data selector and the display control decoder, and the sending time delay and the receiving time delay are adjusted by adjusting parameters of a TCP layer protocol so as to reduce the time delay of a data packet;
by adjusting parameters of the TCP protocol, such as the size of a sending window, a sliding window and the like, the data packet can be received and processed more quickly, so that the data transmission rate is improved, and the TCP protocol is optimized;
time-sharing transmission, based on time-division multiplexing, dividing a transmission task into a plurality of time periods, transmitting a specific data packet in each time period, sending a transmission time window to a sender by a receiver, dynamically adjusting the size of the window according to network conditions, selecting a proper time period by the sender according to the transmission time window of the receiver, and transmitting the specific data packet;
each data packet is encapsulated in a specific time period and is transmitted in a specified time period, and if the sender does not receive the data packet of the receiver in the specified time period, the data packet is retransmitted until the sender is successful in transmitting;
the data can be transmitted in different time slots by dividing the data into a plurality of time slots, so that the throughput of uplink and downlink data transmission is improved, in addition, the data transmission efficiency can be further optimized by dynamically adjusting the transmission rate of the data packet, and the delay of the downlink data packet is reduced; network bandwidth can be utilized to the maximum extent, transmission efficiency is improved, and the integrity of the data packet is ensured: because each data packet has a definite time window, the data packet can be ensured not to be lost in the network, and the method is suitable for a plurality of different network transmission scenes, such as a metropolitan area network, a wide area network, a local area network and the like, and supports different transmission protocols, such as TCP, UDP and the like;
the method further comprises the steps of:
an information-based adaptive bitrate method comprising: transmission power adaptation and rate adaptation, and flow control adaptation;
the method further comprises the steps of:
network selection and configuration, multi-communication protocol integration, route and transmission optimization, data security and encryption, and communication state monitoring and switching;
the network selection and configuration step dynamically selects a proper communication network according to the network environment and requirements of both communication parties, and configures communication parameters; before communication starts, dynamically selecting a proper communication network according to network environments and requirements of two communication parties; this may include wired networks, wireless networks, cellular networks, and the like. Then, according to the characteristics of the selected network, configuring corresponding communication parameters;
the multi-communication protocol integration step realizes the efficient transmission and exchange of data by adapting and integrating communication protocols among different networks; and adapting and integrating communication protocols between different networks. In this way, efficient transmission and exchange of data between different networks can be achieved. For example, conventional Internet Protocol (IP) is integrated with wireless sensor network protocol (WSN) to enable data transmission in remote monitoring applications;
the route and transmission optimizing step selects the optimal transmission path according to the factors of network topology, bandwidth, delay and the like, and segments and compresses the data; for different network environments, according to factors such as network topology, bandwidth, delay and the like, an optimal transmission path is automatically selected, and data are segmented and compressed so as to ensure efficient transmission of the data and minimized delay;
the data security and encryption step ensures the security of communication data through a data encryption and identity verification mechanism; in order to ensure the safety of communication data, a data encryption and identity verification mechanism is introduced in the communication process. The method can prevent data leakage and illegal access, and ensure confidentiality and integrity of communication;
the communication state monitoring and switching step monitors the stability and performance of the communication link and automatically switches to the standby network when an abnormal or low quality connection is detected; during the communication process, the stability and performance of the communication link are monitored at any time, and when abnormal or low-quality connection is detected, the communication link is automatically switched to the standby network so as to ensure the continuity and stability of the communication.
As an alternative to the technical solution of the present application, the transmission power is adaptive:
the transmission power of the transmitting end is dynamically adjusted according to the network condition so as to achieve the optimal data transmission effect, and when the transmission bandwidth of the network is low, the transmitting end can reduce the transmission power so as to reduce the transmission time of the data packet in the network and improve the transmission efficiency;
when the transmission bandwidth of the network is higher, the transmitting end can increase the transmission power so as to ensure that the data packet can reach the receiving end quickly.
As an alternative to the technical solution of the present application, the rate adaptation: the rate of the receiving end is dynamically adjusted according to the network condition so as to achieve the optimal data receiving effect, and when the transmission bandwidth of the network is low, the receiving end can reduce the rate so as to reduce the transmission time of the data packet in the network and reduce the network congestion;
when the transmission bandwidth of the network is higher, the receiving end can increase the rate so as to ensure that the data packet can be received quickly.
As an alternative to the technical solution of the present application, the flow control is adaptive:
the flow in the network is monitored in real time, the flow control strategy of the receiving end is dynamically adjusted according to the network congestion condition, and when the network is congested, the receiving end can reduce the receiving rate so as to reduce the transmission time of data packets in the network and reduce the network congestion;
when the network congestion is not serious, the receiving end can improve the receiving rate so as to improve the transmission efficiency of the data packet, and through the methods of the self-adaptive bit rate, the network can dynamically adjust the bit rate of the data transmission according to different network conditions, thereby realizing high-efficiency data transmission and improving the availability and user experience of the network.
As an alternative to the technical solution of the present application, a method for ACK retransmission based on a time window includes:
the client needs to send data to the server;
the server needs to send an ACK signal to the client after receiving the data of the client, which indicates that the data of the client has been received;
the client calculates a time window according to the ACK signal of the server and the network condition, wherein the time window is a predicted time and can know when to start retransmission before the client sends a retransmission request;
the client calculates a time window, and the client sends a retransmission request signal to the server and tells the server how long it intends to retransmit;
the server sends a retransmission confirmation signal to the client according to the time window of the client and the network condition, which indicates that the server has understood the time window of the client and retransmits according to the time window of the client;
after receiving the retransmission acknowledgement signal of the server, the client starts to send data, and as the client knows the retransmission time, the method can reduce the retransmission times, thereby improving the reliability of the receiver, and the ACK retransmission method based on the time window can effectively improve the reliability of the receiver and reduce the retransmission times.
As an alternative to the technical solution of the present application, the method includes: a method based on random access with disorder, comprising:
transmitting a random access signal, receiving a random access signal, joining or leaving contention, and adjusting resource allocation; the unordered random access method is suitable for the condition of limited network resources, and can effectively utilize the network resources and improve the utilization rate of the resources.
As an alternative to the technical solution of the present application, the sending a random access signal includes: the nodes inform other nodes that they are willing to participate in the contention by sending out-of-order random access signals to the network;
the receiving a random access signal includes: other nodes can select to join or leave the competition according to the self situation after receiving the random access signal;
the joining or leaving competition includes: the node dynamically adjusts the strategy of self-joining or leaving competition according to the joining or leaving condition of other nodes;
the adjusting the resource allocation includes: after the nodes join or leave the competition, the network resources are adjusted according to the node requirements.
As an alternative to the technical solution of the present application, the data allocation includes: time division multiplexing;
the time division multiplexing allocates data packets according to priorities of time slots and rates at which the data packets are transmitted;
in time division multiplexing, each user is allocated to a specific time slot containing only one transmission packet; the time division multiplexing can improve the multiplexing rate and the transmission efficiency of the communication system and reduce the time delay;
the time division multiplexing time slots can be distributed according to the priority of the transmission data packets, and the data packets with high priority can obtain more time slot resources, thereby effectively improving the multiplexing rate and the transmission efficiency of the communication system.
As an alternative to the technical solution of the present application, the ACK retransmission based on the time window includes:
adjusting ACK timing of a downlink data packet includes:
hybrid ACK policy: multiple ACK strategies are combined to achieve optimal performance, e.g., using delayed transmission of the ACK first, and using advanced transmission of the ACK if the delay time is received, to reduce latency.
As an alternative to the technical solution of the present application, the timer includes:
defining a communication timer: determining parameters such as the type, frequency, time delay and the like of a communication timer to be used, and the action and the purpose of each timer;
establishing a communication timer: according to the communication timer method, a corresponding communication timer is established and used for controlling the communication time among different components;
configuring communication timer parameters: configuring corresponding communication timer parameters such as time delay, frequency, transmission time and the like according to the function and the purpose of the communication timer;
using a communication timer: in each component needing to communicate, a communication timer method is used for controlling a communication timer to ensure that the communication between the components is performed at correct time intervals;
monitoring and adjusting a communication timer: in the communication process, monitoring and adjustment are carried out according to actual conditions so as to ensure the communication efficiency and reliability.
3. Advantageous effects
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
1. the present application is by employing unordered random access (UNA) techniques rather than ordered random access (OSA). The UNA technology can improve the throughput of data transmission, avoid queuing of data packets, and improve the data transmission efficiency. Meanwhile, the UNA technology can reduce the ACK delay of the downlink data packet and improve the downlink rate by adjusting the sending sequence of the data packet.
2. According to the method and the device, the data can be transmitted in different time slots by dividing the data into a plurality of time slots, so that the throughput of uplink and downlink data transmission is improved. In addition, the efficiency of data transmission can be further optimized by dynamically adjusting the transmission rate of the data packet, and the delay of the downlink data packet is reduced.
3. The present application is by employing Adaptive Bit Rate (ABR) techniques. ABR techniques can dynamically adjust the bit rate of a data packet based on the network environment and the transmission capabilities of the data packet. By the self-adaptive bit rate technology, the data transmission efficiency can be improved and the delay of the downlink data packet can be reduced on the premise of ensuring the data transmission quality.
4. The method and the device can effectively improve the downlink process rate of data transmission between uplink and downlink, reduce the delay of the data packet and improve the technical effect of user experience;
5. by integrating various communication protocols and technologies, a flexible, reliable and high-performance network connection mode is provided, high-efficiency communication can be realized among different networks, and the method is suitable for various network environments and application scenes.
Drawings
FIG. 1 is a flow chart of a method for adjusting the sending and receiving sequence of data packets in a network communication connection method according to a preferred embodiment of the present invention;
fig. 2 is a diagram of an ACK retransmission system based on a time window in a network communication connection method according to a preferred embodiment of the present application;
FIG. 3 is a flow chart of a time-sharing transmission system of a network communication connection method according to a preferred embodiment of the present invention;
fig. 4 is a flowchart of an ACK retransmission method based on a time window of a network communication connection method according to a preferred embodiment of the present application;
FIG. 5 is a flow chart of an information-based adaptive bit rate method for a network communication connection method according to a preferred embodiment of the present application;
FIG. 6 is a flow chart of a method for unordered random access based network communication connection method according to a preferred embodiment of the present application;
Detailed Description
The present application is described in further detail below in conjunction with the drawings attached to the specification.
Referring to fig. 1-3, a network communication connection method includes:
s101, a sender allocates a serial number to each time of sending data, waits for a receiver to allocate a serial number acknowledgement to the sender in a specific time, and stores the sent data in a buffer;
s102, if the confirmation of the receiver to the sender allocation sequence number is not received within a specific time, repeatedly sending the data packet;
s103, if the acknowledgement is received before the timer is overtime, the buffer occupied by the data packet is released;
s104, after receiving the data packet, the receiver reorganizes the data packet according to the sequence number and transmits the data packet to an upper layer for use; adjusting the sending and receiving sequence of the data packet: in order to reduce the delay of the downlink data packet, the receiving end can realize the rapid receiving of the data packet, rather than waiting for the receiving of the uplink data packet and then receiving the uplink data packet;
s105, the method further includes: based on the ACK retransmission of the time window, immediately sending an ACK acknowledgement data packet after receiving the next data packet before the timer is overtime;
s106, if the data packet is exactly transmitted to the receiving end of the ACK confirmation information, the ACK confirmation information is attached to the data packet and is immediately transmitted;
s107, when the timer is overtime, the ACK confirmation information is immediately sent;
after the timer is accessed, a TTL signal with a certain frequency is input from a CP end, the timer is respectively connected with the address input ends of the data selector and the display control decoder, and the sending time delay and the receiving time delay are adjusted by adjusting parameters of a TCP layer protocol so as to reduce the time delay of a data packet;
by adjusting parameters of the TCP protocol, such as the size of a sending window, a sliding window and the like, the data packet can be received and processed more quickly, so that the data transmission rate is improved, and the TCP protocol is optimized;
s108, time-sharing transmission, namely dividing a transmission task into a plurality of time periods based on time-division multiplexing, transmitting a specific data packet in each time period, wherein a receiver sends a transmission time window to a sender, the size of the window is dynamically adjusted according to network conditions, and the sender selects a proper time period according to the transmission time window of the receiver and transmits the specific data packet;
s109, each data packet is encapsulated in a specific time period and is transmitted in a specified time period, if the sender does not receive the data packet of the receiver in the specified time period, the data packet is retransmitted until the sender is successful in transmitting;
the data can be transmitted in different time slots by dividing the data into a plurality of time slots, so that the throughput of uplink and downlink data transmission is improved, in addition, the data transmission efficiency can be further optimized by dynamically adjusting the transmission rate of the data packet, and the delay of the downlink data packet is reduced; network bandwidth can be utilized to the maximum extent, transmission efficiency is improved, and the integrity of the data packet is ensured: because each data packet has a definite time window, the data packet can be ensured not to be lost in the network, and the method is suitable for a plurality of different network transmission scenes, such as a metropolitan area network, a wide area network, a local area network and the like, and supports different transmission protocols, such as TCP, UDP and the like;
the method further comprises the steps of:
s201, an information-based adaptive bitrate method, including: transmission power adaptation and rate adaptation, and flow control adaptation.
Referring to fig. 5, transmission power adaptation:
s2011, dynamically adjusting the transmission power of a transmitting end according to network conditions to achieve the best data transmission effect, wherein when the transmission bandwidth of a network is low, the transmitting end can reduce the transmission power so as to reduce the transmission time of a data packet in the network and improve the transmission efficiency;
and S2012, when the transmission bandwidth of the network is higher, the transmitting end can improve the transmission power so as to ensure that the data packet can reach the receiving end quickly.
Referring to fig. 5, rate adaptation:
s2013, dynamically adjusting the rate of the receiving end according to the network condition to achieve the optimal data receiving effect, wherein when the transmission bandwidth of the network is low, the receiving end can reduce the rate so as to reduce the transmission time of the data packet in the network and reduce the network congestion;
when the transmission bandwidth of the network is higher, the receiving end can increase the rate so as to ensure that the data packet can be received quickly.
Referring to fig. 5, flow control adaptation:
s2014, monitoring the flow in the network in real time, dynamically adjusting the flow control strategy of the receiving end according to the network congestion condition, and reducing the receiving rate by the receiving end when the network is congested so as to reduce the transmission time of the data packet in the network and reduce the network congestion;
and S2015, when the network congestion is not serious, the receiving end can improve the receiving rate so as to improve the transmission efficiency of the data packet, and through the methods of the self-adaptive bit rate, the network can dynamically adjust the bit rate of the data transmission according to different network conditions, thereby realizing high-efficiency data transmission and improving the availability and user experience of the network.
Referring to fig. 4, a method of ACK retransmission based on a time window includes:
s1051, the client needs to send data to the server;
s1052, the server needs to send an ACK signal to the client after receiving the data of the client, which indicates that the data of the client has been received;
s1053, the client calculates a time window according to the ACK signal of the server and the network condition, wherein the time window is a predicted time, and the client can know when to start retransmission before sending a retransmission request;
s1054, the client calculates a time window, and the client sends a retransmission request signal to the server and tells the server how long it intends to retransmit;
s1055, the server sends a retransmission confirmation signal to the client according to the time window of the client and the network condition, which indicates that the server has understood the time window of the client and retransmits according to the time window of the client;
s1056, after receiving the retransmission confirmation signal of the server, the client starts to send data, and as the client knows the retransmission time, the method can reduce the retransmission times, thereby improving the reliability of the receiver, and the ACK retransmission method based on the time window can effectively improve the reliability of the receiver and reduce the retransmission times.
S301, a method based on unordered random access comprises the following steps:
transmitting a random access signal, receiving a random access signal, joining or leaving contention, and adjusting resource allocation; the unordered random access method is suitable for the condition of limited network resources, and can effectively utilize the network resources and improve the utilization rate of the resources.
With reference to figure 6 of the drawings,
s3011, transmitting a random access signal, including: the nodes inform other nodes that they are willing to participate in the contention by sending out-of-order random access signals to the network;
s3012, receiving a random access signal, including: other nodes can select to join or leave the competition according to the self situation after receiving the random access signal;
s3013, join or leave the contention, including: the node dynamically adjusts the strategy of self-joining or leaving competition according to the joining or leaving condition of other nodes;
s3014, adjust the resource allocation, including: after the nodes join or leave the competition, the network resources are adjusted according to the node requirements.
Data allocation, comprising: time division multiplexing;
s1011, time division multiplexing distributes data packets according to the priority of time slots and the rate of transmitting the data packets;
s1012, in the time division multiplexing, each user is allocated to a specific time slot, which contains only one transmission packet; the time division multiplexing can improve the multiplexing rate and the transmission efficiency of the communication system and reduce the time delay;
in S1013, the time division multiplexing time slots can be allocated according to the priority of the transmission data packet, and the data packet with high priority will obtain more time slot resources, so as to effectively improve the multiplexing rate and transmission efficiency of the communication system.
ACK retransmission based on time window, comprising:
adjusting ACK timing of a downlink data packet includes:
hybrid ACK policy: multiple ACK strategies are combined to achieve optimal performance, e.g., using delayed transmission of the ACK first, and using advanced transmission of the ACK if the delay time is received, to reduce latency.
A timer, comprising:
s1021, define the communication timer: determining parameters such as the type, frequency, time delay and the like of a communication timer to be used, and the action and the purpose of each timer;
s1022, establish a communication timer: according to the communication timer method, a corresponding communication timer is established and used for controlling the communication time among different components;
s1023, configuring communication timer parameters: configuring corresponding communication timer parameters such as time delay, frequency, transmission time and the like according to the function and the purpose of the communication timer;
s1024, using the communication timer: in each component needing to communicate, a communication timer method is used for controlling a communication timer to ensure that the communication between the components is performed at correct time intervals;
s1025, monitoring and adjusting a communication timer: in the communication process, monitoring and adjustment are carried out according to actual conditions so as to ensure the communication efficiency and reliability.
In the above procedure, the present application uses unordered random access (UNA) technology instead of ordered random access (OSA). The UNA technology can improve the throughput of data transmission, avoid queuing of data packets, and improve the data transmission efficiency. Meanwhile, the UNA technology can reduce the ACK delay of the downlink data packet and improve the downlink rate by adjusting the sending sequence of the data packet, and can transmit data in different time slots by dividing the data into a plurality of time slots, thereby improving the throughput of uplink and downlink data transmission. In addition, the efficiency of data transmission can be further optimized by dynamically adjusting the transmission rate of the data packet, and the delay of the downlink data packet is reduced.
Claims (10)
1. A network communication connection method, characterized in that: comprising the following steps:
a sender allocates a serial number to each time of sending data, and waits for a receiver to allocate the serial number acknowledgement to the sender in a specific time, wherein the sender stores the sent data in a buffer;
if the confirmation of the receiver to the sender assigned serial number is not received within a specific time, repeatedly sending the data packet;
if the acknowledgement is received before the timer times out, the buffer occupied by the data packet is released;
the receiver receives the data packets, and then sequentially reorganizes the data packets according to the sequence numbers and transmits the data packets to an upper layer for use;
the method further comprises the steps of: based on the ACK retransmission of the time window, immediately sending an ACK acknowledgement data packet after receiving the next data packet before the timer is overtime;
if the data packet is exactly transmitted to the receiving end of the ACK confirmation information, the ACK confirmation information is attached to the data packet and is immediately transmitted;
when the timer is overtime, the ACK confirmation information is immediately sent;
time-sharing transmission, dividing a transmission task into a plurality of time periods based on time-division multiplexing;
each data packet is encapsulated in a specific time period and is transmitted in a specified time period, and if the sender does not receive the data packet of the receiver in the specified time period, the data packet is retransmitted until the sender is successful in transmitting;
the method further comprises the steps of:
an information-based adaptive bitrate method comprising: transmission power adaptation and rate adaptation, and flow control adaptation;
the method further comprises the steps of:
network selection and configuration, multi-communication protocol integration, route and transmission optimization, data security and encryption, and communication state monitoring and switching;
the network selection and configuration step dynamically selects a proper communication network according to the network environment and requirements of both communication parties, and configures communication parameters;
the multi-communication protocol integration step realizes the efficient transmission and exchange of data by adapting and integrating communication protocols among different networks;
the route and transmission optimizing step selects the optimal transmission path according to the factors of network topology, bandwidth, delay and the like, and segments and compresses the data;
the data security and encryption step ensures the security of communication data through a data encryption and identity verification mechanism;
the communication state monitoring and switching step monitors the stability and performance of the communication link and automatically switches to the standby network when an abnormal or low quality connection is detected.
2. A network communication connection method according to claim 1, characterized in that:
the transmission power adaptation:
the transmission power of the transmitting end is dynamically adjusted according to the network condition so as to achieve the optimal data transmission effect, and when the transmission bandwidth of the network is low, the transmitting end can reduce the transmission power so as to reduce the transmission time of the data packet in the network and improve the transmission efficiency;
when the transmission bandwidth of the network is higher, the transmitting end can increase the transmission power so as to ensure that the data packet can reach the receiving end quickly.
3. A network communication connection method according to claim 1, characterized in that:
the rate adaptation: the rate of the receiving end is dynamically adjusted according to the network condition so as to achieve the optimal data receiving effect, and when the transmission bandwidth of the network is low, the receiving end can reduce the rate so as to reduce the transmission time of the data packet in the network and reduce the network congestion;
when the transmission bandwidth of the network is higher, the receiving end can increase the rate so as to ensure that the data packet can be received quickly.
4. A network communication connection method according to claim 1, characterized in that:
the flow control adaptation:
the flow in the network is monitored in real time, the flow control strategy of the receiving end is dynamically adjusted according to the network congestion condition, and when the network is congested, the receiving end can reduce the receiving rate so as to reduce the transmission time of data packets in the network and reduce the network congestion;
when the network congestion is not serious, the receiving end can increase the receiving rate so as to increase the transmission efficiency of the data packet.
5. A network communication connection method according to claim 1, characterized in that:
a method of time window based ACK retransmission, comprising:
the client needs to send data to the server;
the server needs to send an ACK signal to the client after receiving the data of the client, which indicates that the data of the client is received;
the client calculates a time window according to the ACK signal of the server and the network condition, wherein the time window is a predicted time and can know when to start retransmission before the client sends a retransmission request;
the client calculates a time window, and the client sends a retransmission request signal to the server and tells the server how long it intends to retransmit;
the server sends a retransmission confirmation signal to the client according to the time window of the client and the network condition, which indicates that the server has understood the time window of the client and retransmits according to the time window of the client;
after receiving the retransmission acknowledgement signal from the server, the client starts to send data.
6. A network communication connection method according to claim 1, characterized in that: comprising the following steps: a method based on random access with disorder, comprising:
transmitting a random access signal, receiving a random access signal, joining or leaving contention, and adjusting resource allocation.
7. The network communication connection method according to claim 6, wherein:
the transmitting the random access signal includes: the nodes inform other nodes that they are willing to participate in the contention by sending out-of-order random access signals to the network;
the receiving a random access signal includes: other nodes can select to join or leave the competition according to the self situation after receiving the random access signal;
the joining or leaving competition includes: the node dynamically adjusts the strategy of self-joining or leaving competition according to the joining or leaving condition of other nodes;
the adjusting the resource allocation includes: after the nodes join or leave the competition, the network resources are adjusted according to the node requirements.
8. A network communication connection method according to claim 1, characterized in that:
the data allocation comprises: time division multiplexing;
the time division multiplexing allocates data packets according to priorities of time slots and rates at which the data packets are transmitted;
in time division multiplexing, each user is allocated to a specific time slot containing only one transmission packet; the time division multiplexing can improve the multiplexing rate and the transmission efficiency of the communication system and reduce the time delay;
the time division multiplexing time slots can be allocated according to the priority of the transmission data packets, and the data packets with high priority can obtain more time slot resources.
9. A network communication connection method according to claim 1, characterized in that:
the time window based ACK retransmission includes:
adjusting ACK timing of a downlink data packet includes:
hybrid ACK policy: multiple ACK strategies are combined to achieve optimal performance, e.g., using delayed transmission of the ACK first, and using advanced transmission of the ACK if the delay time is received, to reduce latency.
10. A network communication connection method according to claim 1, characterized in that: a timer, comprising:
defining a communication timer: determining parameters such as the type, frequency, time delay and the like of a communication timer to be used, and the action and the purpose of each timer;
establishing a communication timer: according to the communication timer method, a corresponding communication timer is established and used for controlling the communication time among different components;
configuring communication timer parameters: configuring corresponding communication timer parameters such as time delay, frequency, transmission time and the like according to the function and the purpose of the communication timer;
using a communication timer: in each component needing to communicate, a communication timer method is used for controlling a communication timer to ensure that the communication between the components is performed at correct time intervals;
monitoring and adjusting a communication timer: in the communication process, monitoring and adjustment are carried out according to actual conditions so as to ensure the communication efficiency and reliability.
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| CN202410128176.9A CN117715097A (en) | 2024-01-30 | 2024-01-30 | Network communication connection method |
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