CN109413621B - Method for sending combined data in Internet of things - Google Patents

Method for sending combined data in Internet of things Download PDF

Info

Publication number
CN109413621B
CN109413621B CN201811571995.1A CN201811571995A CN109413621B CN 109413621 B CN109413621 B CN 109413621B CN 201811571995 A CN201811571995 A CN 201811571995A CN 109413621 B CN109413621 B CN 109413621B
Authority
CN
China
Prior art keywords
terminal
data bits
base station
feedback information
equal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201811571995.1A
Other languages
Chinese (zh)
Other versions
CN109413621A (en
Inventor
王洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Polytechnic
Original Assignee
Shenzhen Polytechnic
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Polytechnic filed Critical Shenzhen Polytechnic
Priority to CN201811571995.1A priority Critical patent/CN109413621B/en
Publication of CN109413621A publication Critical patent/CN109413621A/en
Application granted granted Critical
Publication of CN109413621B publication Critical patent/CN109413621B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention is suitable for the field of wireless communication, and provides a method for sending combined data in the Internet of things, which comprises the following steps: step S1: the first terminal determines the number N of data bits to be transmitted and the operating environment temperature T1, step S2: the second terminal receives the first reference signal, and step S3: the third terminal receives the first reference signal, and step S4: after the first terminal receives the first feedback information, the problem that one device in the existing machine communication cannot effectively transmit data generated by the first terminal due to the reasons of channels, electric quantity and the like is solved.

Description

Method for sending combined data in Internet of things
Technical Field
The invention belongs to the field of wireless communication, and particularly relates to a method for sending joint data in the Internet of things.
Background
The 5G can meet diversified business requirements of people in various areas such as residence, work, leisure and traffic, and can provide extremely-sophisticated business experience such as ultra-high-definition video, virtual reality, augmented reality, cloud desktops and online games for users even in scenes with ultra-high traffic density, ultra-high connection number density and ultra-high mobility characteristics such as dense residential areas, offices, stadiums, outdoor gatherings, subways, expressways, high-speed rails and wide area coverage. Meanwhile, 5G can permeate into the fields of the Internet of things and various industries, is deeply integrated with industrial facilities, medical instruments, vehicles and the like, effectively meets the diversified business requirements of the vertical industries such as industry, medical treatment, transportation and the like, and realizes real 'everything interconnection'.
The 5G application scenarios can be divided into two broad categories, namely Mobile Broadband (MBB) and Internet of Things (IoT). Among these, the main technical requirements for mobile broadband access are high capacity, providing high data rates to meet the ever-increasing demand for data services. The internet of things is mainly driven by the requirement of Machine Communication (MTC), and can be further divided into two types, including low-speed Mass Machine Communication (MMC) and low-latency high-reliability Machine Communication. For the low-speed mass machine communication, mass nodes are accessed at a low speed, the transmitted data packets are usually small, the interval time is relatively long, and the cost and the power consumption of the nodes are usually low; for machine communication with low time delay and high reliability, the method is mainly used for machine communication with higher requirements on instantaneity and reliability, such as real-time alarm, real-time monitoring and the like.
In a fifth generation mobile communication system, a core scenario which needs to be studied in depth is machine communication, such as industrial 4.0, internet of vehicles, robots and the like, and when a device cannot effectively transmit data generated by the device due to channel, electric quantity, environment and the like, a method for sending joint data in the internet of things needs to be designed.
Disclosure of Invention
The invention aims to provide a method for sending combined data in the Internet of things, and aims to solve the problem that one device in the existing machine communication cannot effectively transmit data generated by the device due to the reasons of channels, electric quantity and the like.
The invention is realized in such a way that a method for sending combined data in the Internet of things comprises the following steps:
step S1: the method comprises the steps that a first terminal determines the number N of data bits to be sent and the temperature T1 of a working environment, whether N is greater than or equal to T _ N and T1 is greater than or equal to T _ T is judged, if not, the first terminal does not send a terminal activation request to a base station, if yes, the first terminal sends the terminal activation request to the base station, the base station sends an activation signaling to the terminal for terminal activation after receiving the activation request, and the first terminal sends a first reference signal, wherein the activation signaling carries the position information and the number N of the data bits of the first terminal, and the base station knows the position information of the terminal;
step S2: the second terminal receives the first reference signal, and if the received signal-to-noise ratio SNR2 of the first reference signal is greater than T _ SNR and the operating environment temperature T2 of the second terminal is less than T _ T, the second terminal sends first feedback information to the first terminal, where the first feedback information at least includes: the number of data bits N2 that the second terminal can assist the first terminal in transmitting, channel information between the second terminal and the base station, and the number of auxiliary transmission credits that the second terminal expects to be C2;
step S3: a third terminal receives the first reference signal, and if the received signal-to-noise ratio SNR3 of the first reference signal is greater than T _ SNR, the operating environment temperature T3 of the third terminal is greater than or equal to T _ T, and the battery life of the third terminal is greater than or equal to 24 hours, the third terminal sends second feedback information to the first terminal, where the second feedback information at least includes: the number of data bits N3 that the third terminal can assist the first terminal in transmitting, spreading code word information supported by the third terminal, the number of credits for assisting in transmitting that the third terminal desires to obtain, C3;
step S4: after receiving the first feedback information, the first terminal determines whether the number of auxiliary transmission integrals C2 expected by the second terminal can be given, if so, the first terminal selects X data bits from the N data bits and sends the X data bits to the second terminal, wherein X is an integer greater than or equal to 0 and less than or equal to N2;
step S5: after receiving the second feedback information, the first terminal determines whether the third terminal can be given the expected number of auxiliary transmission integrals C3, and if yes, the first terminal selects Y data bits from the remaining (N-X) bits to send to the third terminal, wherein Y is an integer greater than or equal to 0 and less than or equal to N3;
step S6: the first terminal generates third feedback information based on channel information between the second terminal and the base station and spreading code word information supported by the third terminal, and sends the third feedback information to the base station, where the third feedback information at least includes: the identification information of the second terminal, the number X of data bits to be transmitted by the second terminal, the identification information of the third terminal, the number Y of data bits to be transmitted by the third terminal, and the spread spectrum codeword information of the third terminal;
step S7: the base station allocates transmission resources to the first terminal, the second terminal and the third terminal based on the received third feedback information, wherein the transmission resources of the first terminal and the second terminal are completely the same, and the transmission resource of the third terminal is all available uplink transmission resources of the base station;
step S8: the first terminal, the second terminal and the third terminal respectively transmit (N-X-Y) data bits, X data bits and Y data bits according to the resources allocated by the base station;
step S9: after the base station successfully receives the X data bits, the base station subtracts the number of auxiliary transmission integrals of the first terminal (C2 × X/N2+ C3 × Y/N3), increases the number of auxiliary transmission integrals of the second terminal (C2 × X/N2), and increases the number of auxiliary transmission integrals of the third terminal (C3 × Y/N3).
The further technical scheme of the invention is as follows: and the first terminal and the second terminal transmit the X data bits through a first carrier frequency, and the first terminal and the third terminal transmit the Y data bits through a second carrier frequency.
The further technical scheme of the invention is as follows: and the channel quality between the second terminal and the base station is greater than or equal to the channel quality between the first terminal and the base station.
The further technical scheme of the invention is as follows: the length of the spread spectrum code word used by the third terminal is in direct proportion to the size of the working bandwidth of the base station, and the third terminal transmits the Y data bits to the base station by using the corresponding spread spectrum code word.
The further technical scheme of the invention is as follows: the value of T _ N is 5000, and the value of T _ T is 40 ℃.
The further technical scheme of the invention is as follows: the (N-X-Y) data bits and the X data bits are uniformly encoded, and the Y data bits are independently encoded.
The further technical scheme of the invention is as follows: and the power used by the third terminal for sending the Y data bits on a unit bandwidth is less than or equal to the thermal noise power measured by the base station on the unit bandwidth.
The further technical scheme of the invention is as follows: the first terminal determines the transmission power of the first reference signal based on the number N of the data bits to be transmitted, wherein the transmission power is in a direct proportion relation with the number N of the data bits to be transmitted, the base station determines a suggested transmission power value of the first reference signal according to the position information of the first terminal, the position information of the second terminal and the number N of the data bits, the base station sends the suggested transmission power value to the first terminal through a power control signaling, and the first terminal sends the first reference signal based on the suggested power value.
The further technical scheme of the invention is as follows: and the first terminal determines the transmission power when the (N-X-Y) data bits are sent to the base station based on the number of data bits to be sent (N-X-Y), wherein the transmission power is in a logarithmic relationship with the number of data bits to be transmitted (N-X-Y), and P is LOG10(V B (N-X-Y)), where P is the transmission power, V is an adjustment variable whose value is negotiated and confirmed by the base station and the first terminal, and B is a transmission resource allocated by the base station to the first terminal.
The further technical scheme of the invention is as follows: and the second terminal determines the transmitting power used when the X data bits are sent to the base station based on the data bit number X, wherein the transmitting power is in direct proportion to the data bit number X.
The invention has the beneficial effects that: the problem that one device cannot effectively transmit data generated by the device due to the reasons of channels, electric quantity and the like in the existing machine communication is solved, and the frequency spectrum utilization efficiency of a network is improved.
Drawings
Fig. 1 is a flowchart of a method for sending joint data in an internet of things according to an embodiment of the present invention;
fig. 2 is a schematic view of communication between different terminals and between a terminal and a base station of a method for sending joint data in the internet of things according to an embodiment of the present invention;
fig. 3 is a schematic diagram of joint data allocation of a method for sending joint data in the internet of things according to an embodiment of the present invention.
Detailed Description
In the following, referring to fig. 1, fig. 2, and fig. 3, a method for sending joint data in the internet of things is described in further detail, where the method includes the following steps:
step S1: the method comprises the steps that a first terminal determines the number N of data bits to be sent and the temperature T1 of a working environment, whether N is greater than or equal to T _ N and T1 is greater than or equal to T _ T is judged, if not, the first terminal does not send a terminal activation request to a base station, if yes, the first terminal sends the terminal activation request to the base station, the base station sends an activation signaling to the terminal for terminal activation after receiving the activation request, and the first terminal sends a first reference signal, wherein the activation signaling carries the position information and the number N of the data bits of the first terminal, and the base station knows the position information of the terminal;
step S2: the second terminal receives the first reference signal, and if the received signal-to-noise ratio SNR2 of the first reference signal is greater than T _ SNR and the operating environment temperature T2 of the second terminal is less than T _ T, the second terminal sends first feedback information to the first terminal, where the first feedback information at least includes: the number of data bits N2 that the second terminal can assist the first terminal in transmitting, channel information between the second terminal and the base station, and the number of auxiliary transmission credits that the second terminal expects to be C2;
step S3: a third terminal receives the first reference signal, and if the received signal-to-noise ratio SNR3 of the first reference signal is greater than T _ SNR, the operating environment temperature T3 of the third terminal is greater than or equal to T _ T, and the battery life of the third terminal is greater than or equal to 24 hours, the third terminal sends second feedback information to the first terminal, where the second feedback information at least includes: the number of data bits N3 that the third terminal can assist the first terminal in transmitting, spreading code word information supported by the third terminal, the number of credits for assisting in transmitting that the third terminal desires to obtain, C3;
step S4: after receiving the first feedback information, the first terminal determines whether the number of auxiliary transmission integrals C2 expected by the second terminal can be given, if so, the first terminal selects X data bits from the N data bits and sends the X data bits to the second terminal, wherein X is an integer greater than or equal to 0 and less than or equal to N2;
step S5: after receiving the second feedback information, the first terminal determines whether the third terminal can be given the expected number of auxiliary transmission integrals C3, and if yes, the first terminal selects Y data bits from the remaining (N-X) bits to send to the third terminal, wherein Y is an integer greater than or equal to 0 and less than or equal to N3;
step S6: the first terminal generates third feedback information based on channel information between the second terminal and the base station and spreading code word information supported by the third terminal, and sends the third feedback information to the base station, where the third feedback information at least includes: the identification information of the second terminal, the number X of data bits to be transmitted by the second terminal, the identification information of the third terminal, the number Y of data bits to be transmitted by the third terminal, and the spread spectrum codeword information of the third terminal;
step S7: the base station allocates transmission resources to the first terminal, the second terminal and the third terminal based on the received third feedback information, wherein the transmission resources of the first terminal and the second terminal are completely the same, and the transmission resource of the third terminal is all available uplink transmission resources of the base station;
step S8: the first terminal, the second terminal and the third terminal respectively transmit (N-X-Y) data bits, X data bits and Y data bits according to the resources allocated by the base station;
step S9: after the base station successfully receives the X data bits, the base station subtracts the number of auxiliary transmission integrals of the first terminal (C2 × X/N2+ C3 × Y/N3), increases the number of auxiliary transmission integrals of the second terminal (C2 × X/N2), and increases the number of auxiliary transmission integrals of the third terminal (C3 × Y/N3).
Example 1
The method comprises the steps that a first terminal determines the number N of data bits to be sent and the temperature T1 of a working environment, whether N is greater than or equal to T _ N and T1 is greater than or equal to T _ T is judged, if not, the first terminal does not send a terminal activation request to a base station, if yes, the first terminal sends the terminal activation request to the base station, the base station sends an activation signaling to the terminal for terminal activation after receiving the activation request, and the first terminal sends a first reference signal, wherein the activation signaling carries the position information and the number N of the data bits of the first terminal, and the base station knows the position information of the terminal;
the second terminal receives the first reference signal, and if the received signal-to-noise ratio SNR2 of the first reference signal is greater than T _ SNR and the operating environment temperature T2 of the second terminal is less than T _ T, the second terminal sends first feedback information to the first terminal, where the first feedback information at least includes: the number of data bits N2 that the second terminal can assist the first terminal in transmitting, channel information between the second terminal and the base station, and the number of auxiliary transmission credits that the second terminal expects to be C2;
a third terminal receives the first reference signal, and if the received signal-to-noise ratio SNR3 of the first reference signal is greater than T _ SNR, the operating environment temperature T3 of the third terminal is greater than or equal to T _ T, and the battery life of the third terminal is greater than or equal to 24 hours, the third terminal sends second feedback information to the first terminal, where the second feedback information at least includes: the number of data bits N3 that the third terminal can assist the first terminal in transmitting, spreading code word information supported by the third terminal, the number of credits for assisting in transmitting that the third terminal desires to obtain, C3;
after receiving the first feedback information, the first terminal determines whether the number of auxiliary transmission integrals C2 expected by the second terminal can be given, if so, the first terminal selects X data bits from the N data bits and sends the X data bits to the second terminal, wherein X is an integer greater than or equal to 0 and less than or equal to N2;
after receiving the second feedback information, the first terminal determines whether the third terminal can be given the expected number of auxiliary transmission integrals C3, and if yes, the first terminal selects Y data bits from the remaining (N-X) bits to send to the third terminal, wherein Y is an integer greater than or equal to 0 and less than or equal to N3;
the first terminal generates third feedback information based on channel information between the second terminal and the base station and spreading code word information supported by the third terminal, and sends the third feedback information to the base station, where the third feedback information at least includes: the identification information of the second terminal, the number X of data bits to be transmitted by the second terminal, the identification information of the third terminal, the number Y of data bits to be transmitted by the third terminal, and the spread spectrum codeword information of the third terminal;
the base station allocates transmission resources to the first terminal, the second terminal and the third terminal based on the received third feedback information, wherein the transmission resources of the first terminal and the second terminal are completely the same, and the transmission resource of the third terminal is all available uplink transmission resources of the base station;
the first terminal, the second terminal and the third terminal respectively transmit (N-X-Y) data bits, X data bits and Y data bits according to the resources allocated by the base station;
after the base station successfully receives the X data bits, the base station subtracts the number of auxiliary transmission integrals of the first terminal (C2 × X/N2+ C3 × Y/N3), increases the number of auxiliary transmission integrals of the second terminal (C2 × X/N2), and increases the number of auxiliary transmission integrals of the third terminal (C3 × Y/N3).
Example 2
The method comprises the steps that a first terminal determines the number N of data bits to be sent and the temperature T1 of a working environment, whether N is greater than or equal to T _ N and T1 is greater than or equal to T _ T is judged, if not, the first terminal does not send a terminal activation request to a base station, if yes, the first terminal sends the terminal activation request to the base station, the base station sends an activation signaling to the terminal to activate the terminal after receiving the activation request, and the first terminal sends a first reference signal, wherein the activation signaling carries the position information and the number N of the data bits of the first terminal, and the base station knows the position information of the terminal.
The second terminal receives the first reference signal, and if the received signal-to-noise ratio SNR2 of the first reference signal is greater than T _ SNR and the operating environment temperature T2 of the second terminal is less than T _ T, the second terminal sends first feedback information to the first terminal, where the first feedback information at least includes: the number of data bits N2 that the second terminal can transmit with assistance from the first terminal, the channel information between the second terminal and the base station, and the number of credits C2 that the second terminal expects to transmit with assistance.
A third terminal receives the first reference signal, and if the received signal-to-noise ratio SNR3 of the first reference signal is greater than T _ SNR, the operating environment temperature T3 of the third terminal is greater than or equal to T _ T, and the battery life of the third terminal is greater than or equal to 24 hours, the third terminal sends second feedback information to the first terminal, where the second feedback information at least includes: the number of data bits N3 that the third terminal can assist the first terminal in transmitting, spreading code word information supported by the third terminal, and the number of credits for assisting in transmitting that the third terminal desires to obtain C3.
And after receiving the first feedback information, the first terminal determines whether the number of auxiliary transmission integrals C2 expected by the second terminal can be given, and if so, the first terminal selects X data bits from the N data bits and sends the X data bits to the second terminal, wherein X is an integer greater than or equal to 0 and less than or equal to N2.
And after receiving the second feedback information, the first terminal determines whether the third terminal can be given the expected number of auxiliary transmission integrals C3, and if so, the first terminal selects Y data bits from the rest (N-X) bits to send to the third terminal, wherein Y is an integer greater than or equal to 0 and less than or equal to N3. Preferably, the first terminal and the second terminal transmit X data bits through the first carrier frequency, and the first terminal and the third terminal transmit Y data bits through the second carrier frequency, wherein the first carrier frequency and the second carrier frequency are carrier frequencies above 6GHz, and the second carrier frequency is lower than the first carrier frequency, so that the working carrier frequency with low benefit has relatively low sensitivity to the working environment, and the influence of the working environment temperature of the third terminal on the data transmission quality between the first terminal and the third terminal is reduced as much as possible.
The first terminal generates third feedback information based on channel information between the second terminal and the base station and spreading code word information supported by the third terminal, and sends the third feedback information to the base station, where the third feedback information at least includes: the identification information of the second terminal, the number X of data bits to be transmitted by the second terminal, the identification information of the third terminal, the number Y of data bits to be transmitted by the third terminal, and the spread spectrum codeword information of the third terminal.
And the base station allocates transmission resources to the first terminal, the second terminal and the third terminal based on the received third feedback information, wherein the transmission resources of the first terminal and the second terminal are completely the same, and the transmission resource of the third terminal is all available uplink transmission resources of the base station.
And the first terminal, the second terminal and the third terminal respectively transmit (N-X-Y) data bits, X data bits and Y data bits according to the resources allocated by the base station.
After the base station successfully receives the X data bits, the base station subtracts the number of auxiliary transmission integrals of the first terminal (C2 × X/N2+ C3 × Y/N3), increases the number of auxiliary transmission integrals of the second terminal (C2 × X/N2), and increases the number of auxiliary transmission integrals of the third terminal (C3 × Y/N3).
Example 3
The method comprises the steps that a first terminal determines the number N of data bits to be sent and the temperature T1 of a working environment, whether N is greater than or equal to T _ N and T1 is greater than or equal to T _ T is judged, if not, the first terminal does not send a terminal activation request to a base station, if yes, the first terminal sends the terminal activation request to the base station, the base station sends an activation signaling to the terminal to activate the terminal after receiving the activation request, and the first terminal sends a first reference signal, wherein the activation signaling carries the position information and the number N of the data bits of the first terminal, and the base station knows the position information of the terminal.
The second terminal receives the first reference signal, and if the received signal-to-noise ratio SNR2 of the first reference signal is greater than T _ SNR and the operating environment temperature T2 of the second terminal is less than T _ T, the second terminal sends first feedback information to the first terminal, where the first feedback information at least includes: the number of data bits N2 that the second terminal can transmit with assistance from the first terminal, the channel information between the second terminal and the base station, and the number of credits C2 that the second terminal expects to transmit with assistance. Preferably, the channel quality between the second terminal and the base station is greater than or equal to the channel quality between the first terminal and the base station, which has the advantage that the second terminal can help the first terminal to transmit more data to the base station at a relatively good working environment temperature as much as possible, thereby effectively reducing the transmission burden of the first terminal and improving the spectrum efficiency of the whole system.
A third terminal receives the first reference signal, and if the received signal-to-noise ratio SNR3 of the first reference signal is greater than T _ SNR, the operating environment temperature T3 of the third terminal is greater than or equal to T _ T, and the battery life of the third terminal is greater than or equal to 24 hours, the third terminal sends second feedback information to the first terminal, where the second feedback information at least includes: the number of data bits N3 that the third terminal can assist the first terminal in transmitting, spreading code word information supported by the third terminal, and the number of credits for assisting in transmitting that the third terminal desires to obtain C3.
And after receiving the first feedback information, the first terminal determines whether the number of auxiliary transmission integrals C2 expected by the second terminal can be given, and if so, the first terminal selects X data bits from the N data bits and sends the X data bits to the second terminal, wherein X is an integer greater than or equal to 0 and less than or equal to N2.
And after receiving the second feedback information, the first terminal determines whether the third terminal can be given the expected number of auxiliary transmission integrals C3, and if so, the first terminal selects Y data bits from the rest (N-X) bits to send to the third terminal, wherein Y is an integer greater than or equal to 0 and less than or equal to N3.
The first terminal generates third feedback information based on channel information between the second terminal and the base station and spreading code word information supported by the third terminal, and sends the third feedback information to the base station, where the third feedback information at least includes: the identification information of the second terminal, the number X of data bits to be transmitted by the second terminal, the identification information of the third terminal, the number Y of data bits to be transmitted by the third terminal, and the spread spectrum codeword information of the third terminal.
And the base station allocates transmission resources to the first terminal, the second terminal and the third terminal based on the received third feedback information, wherein the transmission resources of the first terminal and the second terminal are completely the same, and the transmission resource of the third terminal is all available uplink transmission resources of the base station.
And the first terminal, the second terminal and the third terminal respectively transmit (N-X-Y) data bits, X data bits and Y data bits according to the resources allocated by the base station.
After the base station successfully receives the X data bits, the base station subtracts the number of auxiliary transmission integrals of the first terminal (C2 × X/N2+ C3 × Y/N3), increases the number of auxiliary transmission integrals of the second terminal (C2 × X/N2), and increases the number of auxiliary transmission integrals of the third terminal (C3 × Y/N3).
Example 4
The method comprises the steps that a first terminal determines the number N of data bits to be sent and the temperature T1 of a working environment, whether N is greater than or equal to T _ N and T1 is greater than or equal to T _ T is judged, if not, the first terminal does not send a terminal activation request to a base station, if yes, the first terminal sends the terminal activation request to the base station, the base station sends an activation signaling to the terminal to activate the terminal after receiving the activation request, and the first terminal sends a first reference signal, wherein the activation signaling carries the position information and the number N of the data bits of the first terminal, and the base station knows the position information of the terminal.
The second terminal receives the first reference signal, and if the received signal-to-noise ratio SNR2 of the first reference signal is greater than T _ SNR and the operating environment temperature T2 of the second terminal is less than T _ T, the second terminal sends first feedback information to the first terminal, where the first feedback information at least includes: the number of data bits N2 that the second terminal can transmit with assistance from the first terminal, the channel information between the second terminal and the base station, and the number of credits C2 that the second terminal expects to transmit with assistance.
A third terminal receives the first reference signal, and if the received signal-to-noise ratio SNR3 of the first reference signal is greater than T _ SNR, the operating environment temperature T3 of the third terminal is greater than or equal to T _ T, and the battery life of the third terminal is greater than or equal to 24 hours, the third terminal sends second feedback information to the first terminal, where the second feedback information at least includes: the number of data bits N3 that the third terminal can assist the first terminal in transmitting, spreading code word information supported by the third terminal, and the number of credits for assisting in transmitting that the third terminal desires to obtain C3.
And after receiving the first feedback information, the first terminal determines whether the number of auxiliary transmission integrals C2 expected by the second terminal can be given, and if so, the first terminal selects X data bits from the N data bits and sends the X data bits to the second terminal, wherein X is an integer greater than or equal to 0 and less than or equal to N2.
And after receiving the second feedback information, the first terminal determines whether the third terminal can be given the expected number of auxiliary transmission integrals C3, and if so, the first terminal selects Y data bits from the rest (N-X) bits to send to the third terminal, wherein Y is an integer greater than or equal to 0 and less than or equal to N3.
The first terminal generates third feedback information based on channel information between the second terminal and the base station and spreading code word information supported by the third terminal, and sends the third feedback information to the base station, where the third feedback information at least includes: the identification information of the second terminal, the number X of data bits to be transmitted by the second terminal, the identification information of the third terminal, the number Y of data bits to be transmitted by the third terminal, and the spread spectrum codeword information of the third terminal.
And the base station allocates transmission resources to the first terminal, the second terminal and the third terminal based on the received third feedback information, wherein the transmission resources of the first terminal and the second terminal are completely the same, and the transmission resource of the third terminal is all available uplink transmission resources of the base station.
And the first terminal, the second terminal and the third terminal respectively transmit (N-X-Y) data bits, X data bits and Y data bits according to the resources allocated by the base station. Preferably, the length of the spreading code word used by the third terminal is in direct proportion to the size of the operating bandwidth of the base station, for example, when the operating bandwidth of the base station is 5MHz, the length of the spreading code word used by the third terminal is 8, and when the operating bandwidth of the base station is 10MHz, the length of the spreading code word used by the third terminal is 16, and the third terminal transmits Y data bits to the base station using the corresponding spreading code word.
After the base station successfully receives the X data bits, the base station subtracts the number of auxiliary transmission integrals of the first terminal (C2 × X/N2+ C3 × Y/N3), increases the number of auxiliary transmission integrals of the second terminal (C2 × X/N2), and increases the number of auxiliary transmission integrals of the third terminal (C3 × Y/N3).
Example 5
The method comprises the steps that a first terminal determines the number N of data bits to be sent and the temperature T1 of a working environment, whether N is greater than or equal to T _ N and T1 is greater than or equal to T _ T is judged, if not, the first terminal does not send a terminal activation request to a base station, if yes, the first terminal sends the terminal activation request to the base station, the base station sends an activation signaling to the terminal to activate the terminal after receiving the activation request, and the first terminal sends a first reference signal, wherein the activation signaling carries the position information and the number N of the data bits of the first terminal, and the base station knows the position information of the terminal. Preferably, the value of T _ N is 5000, and the value of T _ T is 40 degrees celsius, so that the maximum caching capacity of most low-cost terminals at present is less than or equal to 5000, the required normal operating environment temperature is below 38 degrees celsius, and after the above value is exceeded, the data transmission spectrum efficiency of the existing terminal is reduced by more than 30%.
The second terminal receives the first reference signal, and if the received signal-to-noise ratio SNR2 of the first reference signal is greater than T _ SNR and the operating environment temperature T2 of the second terminal is less than T _ T, the second terminal sends first feedback information to the first terminal, where the first feedback information at least includes: the number of data bits N2 that the second terminal can transmit with assistance from the first terminal, the channel information between the second terminal and the base station, and the number of credits C2 that the second terminal expects to transmit with assistance.
A third terminal receives the first reference signal, and if the received signal-to-noise ratio SNR3 of the first reference signal is greater than T _ SNR, the operating environment temperature T3 of the third terminal is greater than or equal to T _ T, and the battery life of the third terminal is greater than or equal to 24 hours, the third terminal sends second feedback information to the first terminal, where the second feedback information at least includes: the number of data bits N3 that the third terminal can assist the first terminal in transmitting, spreading code word information supported by the third terminal, and the number of credits for assisting in transmitting that the third terminal desires to obtain C3.
And after receiving the first feedback information, the first terminal determines whether the number of auxiliary transmission integrals C2 expected by the second terminal can be given, and if so, the first terminal selects X data bits from the N data bits and sends the X data bits to the second terminal, wherein X is an integer greater than or equal to 0 and less than or equal to N2.
And after receiving the second feedback information, the first terminal determines whether the third terminal can be given the expected number of auxiliary transmission integrals C3, and if so, the first terminal selects Y data bits from the rest (N-X) bits to send to the third terminal, wherein Y is an integer greater than or equal to 0 and less than or equal to N3.
The first terminal generates third feedback information based on channel information between the second terminal and the base station and spreading code word information supported by the third terminal, and sends the third feedback information to the base station, where the third feedback information at least includes: the identification information of the second terminal, the number X of data bits to be transmitted by the second terminal, the identification information of the third terminal, the number Y of data bits to be transmitted by the third terminal, and the spread spectrum codeword information of the third terminal.
And the base station allocates transmission resources to the first terminal, the second terminal and the third terminal based on the received third feedback information, wherein the transmission resources of the first terminal and the second terminal are completely the same, and the transmission resource of the third terminal is all available uplink transmission resources of the base station.
And the first terminal, the second terminal and the third terminal respectively transmit (N-X-Y) data bits, X data bits and Y data bits according to the resources allocated by the base station.
After the base station successfully receives the X data bits, the base station subtracts the number of auxiliary transmission integrals of the first terminal (C2 × X/N2+ C3 × Y/N3), increases the number of auxiliary transmission integrals of the second terminal (C2 × X/N2), and increases the number of auxiliary transmission integrals of the third terminal (C3 × Y/N3).
Example 6
The method comprises the steps that a first terminal determines the number N of data bits to be sent and the temperature T1 of a working environment, whether N is greater than or equal to T _ N and T1 is greater than or equal to T _ T is judged, if not, the first terminal does not send a terminal activation request to a base station, if yes, the first terminal sends the terminal activation request to the base station, the base station sends an activation signaling to the terminal to activate the terminal after receiving the activation request, and the first terminal sends a first reference signal, wherein the activation signaling carries the position information and the number N of the data bits of the first terminal, and the base station knows the position information of the terminal.
The second terminal receives the first reference signal, and if the received signal-to-noise ratio SNR2 of the first reference signal is greater than T _ SNR and the operating environment temperature T2 of the second terminal is less than T _ T, the second terminal sends first feedback information to the first terminal, where the first feedback information at least includes: the number of data bits N2 that the second terminal can transmit with assistance from the first terminal, the channel information between the second terminal and the base station, and the number of credits C2 that the second terminal expects to transmit with assistance.
A third terminal receives the first reference signal, and if the received signal-to-noise ratio SNR3 of the first reference signal is greater than T _ SNR, the operating environment temperature T3 of the third terminal is greater than or equal to T _ T, and the battery life of the third terminal is greater than or equal to 24 hours, the third terminal sends second feedback information to the first terminal, where the second feedback information at least includes: the number of data bits N3 that the third terminal can assist the first terminal in transmitting, spreading code word information supported by the third terminal, and the number of credits for assisting in transmitting that the third terminal desires to obtain C3.
And after receiving the first feedback information, the first terminal determines whether the number of auxiliary transmission integrals C2 expected by the second terminal can be given, and if so, the first terminal selects X data bits from the N data bits and sends the X data bits to the second terminal, wherein X is an integer greater than or equal to 0 and less than or equal to N2.
And after receiving the second feedback information, the first terminal determines whether the third terminal can be given the expected number of auxiliary transmission integrals C3, and if so, the first terminal selects Y data bits from the rest (N-X) bits to send to the third terminal, wherein Y is an integer greater than or equal to 0 and less than or equal to N3.
The first terminal generates third feedback information based on channel information between the second terminal and the base station and spreading code word information supported by the third terminal, and sends the third feedback information to the base station, where the third feedback information at least includes: the identification information of the second terminal, the number X of data bits to be transmitted by the second terminal, the identification information of the third terminal, the number Y of data bits to be transmitted by the third terminal, and the spread spectrum codeword information of the third terminal.
And the base station allocates transmission resources to the first terminal, the second terminal and the third terminal based on the received third feedback information, wherein the transmission resources of the first terminal and the second terminal are completely the same, and the transmission resource of the third terminal is all available uplink transmission resources of the base station.
And the first terminal, the second terminal and the third terminal respectively transmit (N-X-Y) data bits, X data bits and Y data bits according to the resources allocated by the base station. Preferably, as shown in fig. 3, (N-X-Y) data bits and X data bits are uniformly encoded (for example, these bits are encoded by an encoder and output a set of 16-bit cyclic redundancy check bits), Y data bits are independently encoded, which has the advantage that since the amount of data transmitted by the first terminal and the second terminal is usually large and the channel quality between the first terminal and the base station is also good, the reception quality of the content sent by the first terminal and the second terminal on the base station side is similar, so that the data sent by the first terminal and the second terminal to the base station can be uniformly encoded, and the base station determines whether the bit stream formed by the (N-X-Y) data bits and the X data bits is successfully received. In addition, the third terminal uses lower power to send Y data bits by using a spread spectrum mode, the experienced channel quality of the Y data bits is completely different from that of the first terminal and the second terminal, the Y data bits are independently coded, and the base station end independently judges whether the Y bits are successfully received, so that the spectrum efficiency of the system is effectively improved, and the feedback overhead of the system is controlled.
After the base station successfully receives the X data bits, the base station subtracts the number of auxiliary transmission integrals of the first terminal (C2 × X/N2+ C3 × Y/N3), increases the number of auxiliary transmission integrals of the second terminal (C2 × X/N2), and increases the number of auxiliary transmission integrals of the third terminal (C3 × Y/N3).
Example 7
The method comprises the steps that a first terminal determines the number N of data bits to be sent and the temperature T1 of a working environment, whether N is greater than or equal to T _ N and T1 is greater than or equal to T _ T is judged, if not, the first terminal does not send a terminal activation request to a base station, if yes, the first terminal sends the terminal activation request to the base station, the base station sends an activation signaling to the terminal to activate the terminal after receiving the activation request, and the first terminal sends a first reference signal, wherein the activation signaling carries the position information and the number N of the data bits of the first terminal, and the base station knows the position information of the terminal.
The second terminal receives the first reference signal, and if the received signal-to-noise ratio SNR2 of the first reference signal is greater than T _ SNR and the operating environment temperature T2 of the second terminal is less than T _ T, the second terminal sends first feedback information to the first terminal, where the first feedback information at least includes: the number of data bits N2 that the second terminal can transmit with assistance from the first terminal, the channel information between the second terminal and the base station, and the number of credits C2 that the second terminal expects to transmit with assistance.
A third terminal receives the first reference signal, and if the received signal-to-noise ratio SNR3 of the first reference signal is greater than T _ SNR, the operating environment temperature T3 of the third terminal is greater than or equal to T _ T, and the battery life of the third terminal is greater than or equal to 24 hours, the third terminal sends second feedback information to the first terminal, where the second feedback information at least includes: the number of data bits N3 that the third terminal can assist the first terminal in transmitting, spreading code word information supported by the third terminal, and the number of credits for assisting in transmitting that the third terminal desires to obtain C3.
And after receiving the first feedback information, the first terminal determines whether the number of auxiliary transmission integrals C2 expected by the second terminal can be given, and if so, the first terminal selects X data bits from the N data bits and sends the X data bits to the second terminal, wherein X is an integer greater than or equal to 0 and less than or equal to N2.
And after receiving the second feedback information, the first terminal determines whether the third terminal can be given the expected number of auxiliary transmission integrals C3, and if so, the first terminal selects Y data bits from the rest (N-X) bits to send to the third terminal, wherein Y is an integer greater than or equal to 0 and less than or equal to N3.
The first terminal generates third feedback information based on channel information between the second terminal and the base station and spreading code word information supported by the third terminal, and sends the third feedback information to the base station, where the third feedback information at least includes: the identification information of the second terminal, the number X of data bits to be transmitted by the second terminal, the identification information of the third terminal, the number Y of data bits to be transmitted by the third terminal, and the spread spectrum codeword information of the third terminal.
And the base station allocates transmission resources to the first terminal, the second terminal and the third terminal based on the received third feedback information, wherein the transmission resources of the first terminal and the second terminal are completely the same, and the transmission resource of the third terminal is all available uplink transmission resources of the base station.
And the first terminal, the second terminal and the third terminal respectively transmit (N-X-Y) data bits, X data bits and Y data bits according to the resources allocated by the base station. Preferably, the power used by the Y data bits sent by the third terminal in the unit bandwidth is less than or equal to the thermal noise power measured by the base station in the unit bandwidth, which is because the third terminal uses all uplink bandwidths to send data, if the transmission power of the third terminal is not controlled, the third terminal will bring very large interference to the uplink of the system, and if the system is seriously unable to operate, the transmission power of the third terminal must be controlled.
After the base station successfully receives the X data bits, the base station subtracts the number of auxiliary transmission integrals of the first terminal (C2 × X/N2+ C3 × Y/N3), increases the number of auxiliary transmission integrals of the second terminal (C2 × X/N2), and increases the number of auxiliary transmission integrals of the third terminal (C3 × Y/N3).
Example 8
The method comprises the steps that a first terminal determines the number N of data bits to be sent and the temperature T1 of a working environment, whether N is greater than or equal to T _ N and T1 is greater than or equal to T _ T is judged, if not, the first terminal does not send a terminal activation request to a base station, if yes, the first terminal sends the terminal activation request to the base station, the base station sends an activation signaling to the terminal to activate the terminal after receiving the activation request, and the first terminal sends a first reference signal, wherein the activation signaling carries the position information and the number N of the data bits of the first terminal, and the base station knows the position information of the terminal. Preferably, the first terminal determines the transmission power of the first reference signal based on the number N of data bits to be transmitted, where the transmission power is in direct proportion to the number N of data bits to be transmitted, and this is because when the number of data bits that the first terminal needs to transmit is large, more terminals are desirable to assist the first terminal in data transmission.
The second terminal receives the first reference signal, and if the received signal-to-noise ratio SNR2 of the first reference signal is greater than T _ SNR and the operating environment temperature T2 of the second terminal is less than T _ T, the second terminal sends first feedback information to the first terminal, where the first feedback information at least includes: the number of data bits N2 that the second terminal can transmit with assistance from the first terminal, the channel information between the second terminal and the base station, and the number of credits C2 that the second terminal expects to transmit with assistance.
A third terminal receives the first reference signal, and if the received signal-to-noise ratio SNR3 of the first reference signal is greater than T _ SNR, the operating environment temperature T3 of the third terminal is greater than or equal to T _ T, and the battery life of the third terminal is greater than or equal to 24 hours, the third terminal sends second feedback information to the first terminal, where the second feedback information at least includes: the number of data bits N3 that the third terminal can assist the first terminal in transmitting, spreading code word information supported by the third terminal, and the number of credits for assisting in transmitting that the third terminal desires to obtain C3.
And after receiving the first feedback information, the first terminal determines whether the number of auxiliary transmission integrals C2 expected by the second terminal can be given, and if so, the first terminal selects X data bits from the N data bits and sends the X data bits to the second terminal, wherein X is an integer greater than or equal to 0 and less than or equal to N2.
And after receiving the second feedback information, the first terminal determines whether the third terminal can be given the expected number of auxiliary transmission integrals C3, and if so, the first terminal selects Y data bits from the rest (N-X) bits to send to the third terminal, wherein Y is an integer greater than or equal to 0 and less than or equal to N3.
The first terminal generates third feedback information based on channel information between the second terminal and the base station and spreading code word information supported by the third terminal, and sends the third feedback information to the base station, where the third feedback information at least includes: the identification information of the second terminal, the number X of data bits to be transmitted by the second terminal, the identification information of the third terminal, the number Y of data bits to be transmitted by the third terminal, and the spread spectrum codeword information of the third terminal.
And the base station allocates transmission resources to the first terminal, the second terminal and the third terminal based on the received third feedback information, wherein the transmission resources of the first terminal and the second terminal are completely the same, and the transmission resource of the third terminal is all available uplink transmission resources of the base station.
And the first terminal, the second terminal and the third terminal respectively transmit (N-X-Y) data bits, X data bits and Y data bits according to the resources allocated by the base station.
After the base station successfully receives the X data bits, the base station subtracts the number of auxiliary transmission integrals of the first terminal (C2 × X/N2+ C3 × Y/N3), increases the number of auxiliary transmission integrals of the second terminal (C2 × X/N2), and increases the number of auxiliary transmission integrals of the third terminal (C3 × Y/N3).
Example 9
The method comprises the steps that a first terminal determines the number N of data bits to be sent and the temperature T1 of a working environment, whether N is greater than or equal to T _ N and T1 is greater than or equal to T _ T is judged, if not, the first terminal does not send a terminal activation request to a base station, if yes, the first terminal sends the terminal activation request to the base station, the base station sends an activation signaling to the terminal to activate the terminal after receiving the activation request, and the first terminal sends a first reference signal, wherein the activation signaling carries the position information and the number N of the data bits of the first terminal, and the base station knows the position information of the terminal.
The second terminal receives the first reference signal, and if the received signal-to-noise ratio SNR2 of the first reference signal is greater than T _ SNR and the operating environment temperature T2 of the second terminal is less than T _ T, the second terminal sends first feedback information to the first terminal, where the first feedback information at least includes: the number of data bits N2 that the second terminal can transmit with assistance from the first terminal, the channel information between the second terminal and the base station, and the number of credits C2 that the second terminal expects to transmit with assistance.
A third terminal receives the first reference signal, and if the received signal-to-noise ratio SNR3 of the first reference signal is greater than T _ SNR, the operating environment temperature T3 of the third terminal is greater than or equal to T _ T, and the battery life of the third terminal is greater than or equal to 24 hours, the third terminal sends second feedback information to the first terminal, where the second feedback information at least includes: the number of data bits N3 that the third terminal can assist the first terminal in transmitting, spreading code word information supported by the third terminal, and the number of credits for assisting in transmitting that the third terminal desires to obtain C3.
And after receiving the first feedback information, the first terminal determines whether the number of auxiliary transmission integrals C2 expected by the second terminal can be given, and if so, the first terminal selects X data bits from the N data bits and sends the X data bits to the second terminal, wherein X is an integer greater than or equal to 0 and less than or equal to N2.
And after receiving the second feedback information, the first terminal determines whether the third terminal can be given the expected number of auxiliary transmission integrals C3, and if so, the first terminal selects Y data bits from the rest (N-X) bits to send to the third terminal, wherein Y is an integer greater than or equal to 0 and less than or equal to N3.
The first terminal generates third feedback information based on channel information between the second terminal and the base station and spreading code word information supported by the third terminal, and sends the third feedback information to the base station, where the third feedback information at least includes: the identification information of the second terminal, the number X of data bits to be transmitted by the second terminal, the identification information of the third terminal, the number Y of data bits to be transmitted by the third terminal, and the spread spectrum codeword information of the third terminal.
And the base station allocates transmission resources to the first terminal, the second terminal and the third terminal based on the received third feedback information, wherein the transmission resources of the first terminal and the second terminal are completely the same, and the transmission resource of the third terminal is all available uplink transmission resources of the base station.
And the first terminal, the second terminal and the third terminal respectively transmit (N-X-Y) data bits, X data bits and Y data bits according to the resources allocated by the base station. Preferably, the first terminal determines the transmission power for transmitting (N-X-Y) data bits to the base station based on the number of data bits to be transmitted (N-X-Y), wherein the transmission power is in a logarithmic relationship with the number of data bits to be transmitted (N-X-Y), and P is LOG10(V B (N-X-Y)), where P is the transmission power, V is a regulating variable whose value is negotiated and confirmed by the base station and the first terminal, and B is a transmission resource allocated to the first terminal by the base station, so that the advantage is that the more data the first terminal transmits, the more stable the power is, the power is not increased without limitation, and adverse effects on the first terminal caused by improperly increasing the transmission power of the first terminal when the first terminal is in a harsh operating environment where the first terminal is located, such as reducing the service life of the first terminal or failing to operate normally are avoided, in particular analog devices.
After the base station successfully receives the X data bits, the base station subtracts the number of auxiliary transmission integrals of the first terminal (C2 × X/N2+ C3 × Y/N3), increases the number of auxiliary transmission integrals of the second terminal (C2 × X/N2), and increases the number of auxiliary transmission integrals of the third terminal (C3 × Y/N3).
Example 10
The method comprises the steps that a first terminal determines the number N of data bits to be sent and the temperature T1 of a working environment, whether N is greater than or equal to T _ N and T1 is greater than or equal to T _ T is judged, if not, the first terminal does not send a terminal activation request to a base station, if yes, the first terminal sends the terminal activation request to the base station, the base station sends an activation signaling to the terminal to activate the terminal after receiving the activation request, and the first terminal sends a first reference signal, wherein the activation signaling carries the position information and the number N of the data bits of the first terminal, and the base station knows the position information of the terminal.
The second terminal receives the first reference signal, and if the received signal-to-noise ratio SNR2 of the first reference signal is greater than T _ SNR and the operating environment temperature T2 of the second terminal is less than T _ T, the second terminal sends first feedback information to the first terminal, where the first feedback information at least includes: the number of data bits N2 that the second terminal can transmit with assistance from the first terminal, the channel information between the second terminal and the base station, and the number of credits C2 that the second terminal expects to transmit with assistance.
A third terminal receives the first reference signal, and if the received signal-to-noise ratio SNR3 of the first reference signal is greater than T _ SNR, the operating environment temperature T3 of the third terminal is greater than or equal to T _ T, and the battery life of the third terminal is greater than or equal to 24 hours, the third terminal sends second feedback information to the first terminal, where the second feedback information at least includes: the number of data bits N3 that the third terminal can assist the first terminal in transmitting, spreading code word information supported by the third terminal, and the number of credits for assisting in transmitting that the third terminal desires to obtain C3.
And after receiving the first feedback information, the first terminal determines whether the number of auxiliary transmission integrals C2 expected by the second terminal can be given, and if so, the first terminal selects X data bits from the N data bits and sends the X data bits to the second terminal, wherein X is an integer greater than or equal to 0 and less than or equal to N2.
And after receiving the second feedback information, the first terminal determines whether the third terminal can be given the expected number of auxiliary transmission integrals C3, and if so, the first terminal selects Y data bits from the rest (N-X) bits to send to the third terminal, wherein Y is an integer greater than or equal to 0 and less than or equal to N3.
The first terminal generates third feedback information based on channel information between the second terminal and the base station and spreading code word information supported by the third terminal, and sends the third feedback information to the base station, where the third feedback information at least includes: the identification information of the second terminal, the number X of data bits to be transmitted by the second terminal, the identification information of the third terminal, the number Y of data bits to be transmitted by the third terminal, and the spread spectrum codeword information of the third terminal.
And the base station allocates transmission resources to the first terminal, the second terminal and the third terminal based on the received third feedback information, wherein the transmission resources of the first terminal and the second terminal are completely the same, and the transmission resource of the third terminal is all available uplink transmission resources of the base station.
And the first terminal, the second terminal and the third terminal respectively transmit (N-X-Y) data bits, X data bits and Y data bits according to the resources allocated by the base station. Preferably, the second terminal determines the transmission power used when transmitting the X data bits to the first base station based on the number X of data bits, where the transmission power is in direct proportion to the number X of data bits, which has the advantage that the operating environment of the second terminal is relatively good, so that it is possible to increase the transmission power of the second terminal as much as possible to assist the first terminal to transmit more data and improve the transmission quality of the data.
After the base station successfully receives the X data bits, the base station subtracts the number of auxiliary transmission integrals of the first terminal (C2 × X/N2+ C3 × Y/N3), increases the number of auxiliary transmission integrals of the second terminal (C2 × X/N2), and increases the number of auxiliary transmission integrals of the third terminal (C3 × Y/N3).
Example 11
The method comprises the steps that a first terminal determines the number N of data bits to be sent and the temperature T1 of a working environment, whether N is greater than or equal to T _ N and T1 is greater than or equal to T _ T is judged, if not, the first terminal does not send a terminal activation request to a base station, if yes, the first terminal sends the terminal activation request to the base station, the base station sends an activation signaling to the terminal to activate the terminal after receiving the activation request, and the first terminal sends a first reference signal, wherein the activation signaling carries the position information and the number N of the data bits of the first terminal, and the base station knows the position information of the terminal. Preferably, the base station determines a recommended value of transmission power of the first reference signal according to the location information of the first terminal, the location information of the second terminal, and the number N of data bits (P ═ V × D × N, where P is transmission power, V is an adjustment variable, a value of which is confirmed by negotiation between the base station and the first terminal, and D is a distance between the first terminal and the second terminal), and the base station transmits the recommended value of transmission power to the first terminal through the power control signaling, and the first terminal transmits the first reference signal based on the recommended value of transmission power.
The second terminal receives the first reference signal, and if the received signal-to-noise ratio SNR2 of the first reference signal is greater than T _ SNR and the operating environment temperature T2 of the second terminal is less than T _ T, the second terminal sends first feedback information to the first terminal, where the first feedback information at least includes: the number of data bits N2 that the second terminal can transmit with assistance from the first terminal, the channel information between the second terminal and the base station, and the number of credits C2 that the second terminal expects to transmit with assistance.
A third terminal receives the first reference signal, and if the received signal-to-noise ratio SNR3 of the first reference signal is greater than T _ SNR, the operating environment temperature T3 of the third terminal is greater than or equal to T _ T, and the battery life of the third terminal is greater than or equal to 24 hours, the third terminal sends second feedback information to the first terminal, where the second feedback information at least includes: the number of data bits N3 that the third terminal can assist the first terminal in transmitting, spreading code word information supported by the third terminal, and the number of credits for assisting in transmitting that the third terminal desires to obtain C3.
And after receiving the first feedback information, the first terminal determines whether the number of auxiliary transmission integrals C2 expected by the second terminal can be given, and if so, the first terminal selects X data bits from the N data bits and sends the X data bits to the second terminal, wherein X is an integer greater than or equal to 0 and less than or equal to N2.
And after receiving the second feedback information, the first terminal determines whether the third terminal can be given the expected number of auxiliary transmission integrals C3, and if so, the first terminal selects Y data bits from the rest (N-X) bits to send to the third terminal, wherein Y is an integer greater than or equal to 0 and less than or equal to N3.
The first terminal generates third feedback information based on channel information between the second terminal and the base station and spreading code word information supported by the third terminal, and sends the third feedback information to the base station, where the third feedback information at least includes: the identification information of the second terminal, the number X of data bits to be transmitted by the second terminal, the identification information of the third terminal, the number Y of data bits to be transmitted by the third terminal, and the spread spectrum codeword information of the third terminal.
And the base station allocates transmission resources to the first terminal, the second terminal and the third terminal based on the received third feedback information, wherein the transmission resources of the first terminal and the second terminal are completely the same, and the transmission resource of the third terminal is all available uplink transmission resources of the base station.
And the first terminal, the second terminal and the third terminal respectively transmit (N-X-Y) data bits, X data bits and Y data bits according to the resources allocated by the base station.
After the base station successfully receives the X data bits, the base station subtracts the number of auxiliary transmission integrals of the first terminal (C2 × X/N2+ C3 × Y/N3), increases the number of auxiliary transmission integrals of the second terminal (C2 × X/N2), and increases the number of auxiliary transmission integrals of the third terminal (C3 × Y/N3).
By adopting the method for sending the combined data in the Internet of things, the problem that one device in the existing machine communication cannot effectively transmit the data generated by the device due to the reasons of channels, electric quantity and the like can be solved, and the frequency spectrum use efficiency of the network is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. A method for sending combined data in the Internet of things is characterized by comprising the following steps:
step S1: the method comprises the steps that a first terminal determines the number N of data bits to be sent and the temperature T1 of a working environment, whether N is greater than or equal to T _ N and T1 is greater than or equal to T _ T is judged, the value of the T _ N is 5000, the value of the T _ T is 40 ℃, if not, the first terminal does not send a terminal activation request to a base station, if yes, the first terminal sends the terminal activation request to the base station, the base station sends an activation signaling to the terminal for terminal activation after receiving the activation request, and the first terminal sends a first reference signal, wherein the activation signaling carries the position information and the number N of the data bits of the first terminal, and the base station knows the position information of the terminal;
step S2: the second terminal receives the first reference signal, and if the received signal-to-noise ratio SNR2 of the first reference signal is greater than T _ SNR and the operating environment temperature T2 of the second terminal is less than T _ T, the second terminal sends first feedback information to the first terminal, where the first feedback information at least includes: the number of data bits N2 that the second terminal can assist the first terminal in transmitting, channel information between the second terminal and the base station, and the number of auxiliary transmission credits that the second terminal expects to be C2;
step S3: a third terminal receives the first reference signal, and if the received signal-to-noise ratio SNR3 of the first reference signal is greater than T _ SNR, the operating environment temperature T3 of the third terminal is greater than or equal to T _ T, and the battery life of the third terminal is greater than or equal to 24 hours, the third terminal sends second feedback information to the first terminal, where the second feedback information at least includes: the number of data bits N3 that the third terminal can assist the first terminal in transmitting, spreading code word information supported by the third terminal, the number of credits for assisting in transmitting that the third terminal desires to obtain, C3;
step S4: after receiving the first feedback information, the first terminal determines whether the number of auxiliary transmission integrals C2 expected by the second terminal can be given, if so, the first terminal selects X data bits from the N data bits and sends the X data bits to the second terminal, wherein X is an integer greater than or equal to 0 and less than or equal to N2;
step S5: after receiving the second feedback information, the first terminal determines whether the number of auxiliary transmission integrals C3 expected by the third terminal can be given, and if yes, the first terminal selects Y data bits from the remaining (N-X) bits to send to the third terminal, wherein Y is an integer greater than or equal to 0 and less than or equal to N3;
step S6: the first terminal generates third feedback information based on channel information between the second terminal and the base station and spreading code word information supported by the third terminal, and sends the third feedback information to the base station, where the third feedback information at least includes: the identification information of the second terminal, the number X of data bits to be transmitted by the second terminal, the identification information of the third terminal, the number Y of data bits to be transmitted by the third terminal, and the spread spectrum codeword information of the third terminal;
step S7: the base station allocates transmission resources to the first terminal, the second terminal and the third terminal based on the received third feedback information, wherein the transmission resources of the first terminal and the second terminal are completely the same, and the transmission resource of the third terminal is all available uplink transmission resources of the base station;
step S8: the first terminal, the second terminal and the third terminal respectively transmit (N-X-Y) data bits, X data bits and Y data bits according to the resources allocated by the base station;
step S9: after the base station successfully receives the X data bits, the base station subtracts the number of auxiliary transmission integrals of the first terminal (C2 × X/N2+ C3 × Y/N3), increases the number of auxiliary transmission integrals of the second terminal (C2 × X/N2), and increases the number of auxiliary transmission integrals of the third terminal (C3 × Y/N3).
2. The transmission method of claim 1, wherein the first terminal and the second terminal transmit the X data bits via a first carrier frequency, and wherein the first terminal and the third terminal transmit the Y data bits via a second carrier frequency.
3. The transmission method according to claim 1, wherein the channel quality between the second terminal and the base station is equal to or greater than the channel quality between the first terminal and the base station.
4. The transmitting method of claim 1, wherein the length of the spreading code used by the third terminal is proportional to the size of the operating bandwidth of the base station, and the third terminal transmits the Y data bits to the base station using the corresponding spreading code.
5. The transmission method of claim 1, wherein the (N-X-Y) data bits and the X data bits are uniformly coded, and wherein the Y data bits are independently coded.
6. The transmission method as claimed in claim 1, wherein the power used by the third terminal to transmit the Y data bits in a unit bandwidth is equal to or less than the thermal noise power measured by the base station in the unit bandwidth.
7. The sending method according to claim 1, wherein the first terminal determines the transmission power of the first reference signal based on the number N of data bits to be sent, wherein the transmission power is in a direct proportion to the number N of data bits to be sent, the base station determines the recommended transmission power value of the first reference signal according to the position information of the first terminal, the position information of the second terminal, and the number N of data bits, the base station sends the recommended transmission power value to the first terminal through a power control signaling, and the first terminal sends the first reference signal based on the recommended transmission power value.
8. The method according to claim 1, wherein the first terminal determines the transmit power for transmitting the (N-X-Y) data bits to the base station based on the number of data bits to be transmitted (N-X-Y), wherein the transmit power is logarithmic to the number of data bits to be transmitted (N-X-Y), and P = LOG10(V X B (N-X-Y)), where P is the transmit power, V is a tuning variable whose value is negotiated and confirmed by the base station and the first terminal, and B is the transmission resource allocated by the base station to the first terminal.
9. The transmission method according to claim 1, wherein the second terminal determines the transmission power used for transmitting the X data bits to the base station based on the number X of data bits, wherein the transmission power is in direct proportion to the number X of data bits.
CN201811571995.1A 2018-12-21 2018-12-21 Method for sending combined data in Internet of things Active CN109413621B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811571995.1A CN109413621B (en) 2018-12-21 2018-12-21 Method for sending combined data in Internet of things

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811571995.1A CN109413621B (en) 2018-12-21 2018-12-21 Method for sending combined data in Internet of things

Publications (2)

Publication Number Publication Date
CN109413621A CN109413621A (en) 2019-03-01
CN109413621B true CN109413621B (en) 2021-06-22

Family

ID=65461110

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811571995.1A Active CN109413621B (en) 2018-12-21 2018-12-21 Method for sending combined data in Internet of things

Country Status (1)

Country Link
CN (1) CN109413621B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101136674A (en) * 2006-05-05 2008-03-05 美国博通公司 Wireless network, access point and method of managing communication of plurality of wireless equipments
CN101595661A (en) * 2007-01-26 2009-12-02 日本电气株式会社 Mobile communication system, terminal equipment, base station equipment and data communications method
CN102025442A (en) * 2009-09-23 2011-04-20 大唐移动通信设备有限公司 Method and device for transmitting channel quality indication information of multi-user terminals
CN104270819A (en) * 2014-10-23 2015-01-07 东莞宇龙通信科技有限公司 Method and system for auxiliary communication, equipment with base station function, and terminal
CN106658729A (en) * 2016-12-13 2017-05-10 深圳职业技术学院 Flexible transmission method
CN108462949A (en) * 2018-01-16 2018-08-28 深圳职业技术学院 A kind of business transmitting method based on group

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5867611B2 (en) * 2012-10-02 2016-02-24 富士通株式会社 Wireless communication system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101136674A (en) * 2006-05-05 2008-03-05 美国博通公司 Wireless network, access point and method of managing communication of plurality of wireless equipments
CN101595661A (en) * 2007-01-26 2009-12-02 日本电气株式会社 Mobile communication system, terminal equipment, base station equipment and data communications method
CN102025442A (en) * 2009-09-23 2011-04-20 大唐移动通信设备有限公司 Method and device for transmitting channel quality indication information of multi-user terminals
CN104270819A (en) * 2014-10-23 2015-01-07 东莞宇龙通信科技有限公司 Method and system for auxiliary communication, equipment with base station function, and terminal
CN106658729A (en) * 2016-12-13 2017-05-10 深圳职业技术学院 Flexible transmission method
CN108462949A (en) * 2018-01-16 2018-08-28 深圳职业技术学院 A kind of business transmitting method based on group

Also Published As

Publication number Publication date
CN109413621A (en) 2019-03-01

Similar Documents

Publication Publication Date Title
CN109714735B (en) Robust data transmission method in Internet of things
KR101221924B1 (en) Bandwidth request method and bandwidth allocation method in broadband wireless access system
TWI296472B (en)
CN113573356B (en) Data processing method in industrial Internet of things
CN109547173B (en) Information transmission method in Internet of things
CN111629331A (en) Data transmission method in Internet of things
CN106658729B (en) Flexible transmission method
CN109873687B (en) Information processing method and system based on signal-to-noise ratio in Internet of things and storage medium
CN113573337B (en) Data transmission method in industrial Internet of things
CN109462871B (en) Data transmission method based on competition in Internet of things
CN110048810B (en) Information sending method, system and storage medium in Internet of things
CN110034911B (en) Method, system and storage medium for fast data transmission in Internet of things
CN109413621B (en) Method for sending combined data in Internet of things
CN109413622B (en) Method for solving data transmission conflict in Internet of things
CN109462870B (en) Method for sending retransmission data in Internet of things
KR20080018513A (en) Apparatus and method for transmitting and receiving data in wireless access communication system
CN109639400B (en) Method for sending combined data in Internet of things
CN109462869B (en) Processing method for data competition sending failure in Internet of things
CN114338332B (en) Efficient data transmission method in intelligent industrial Internet of things
CN110012543B (en) Data transmission method, system and storage medium for low control overhead in Internet of things
CN111182473B (en) Method for sending multicast data in Internet of things
CN111182472B (en) Method for sending broadcast data in Internet of things
CN111935838B (en) Control information transmission method
CN110048811B (en) Low-delay information processing method and system in Internet of things and storage medium
CN114285716B (en) Data transmission method in intelligent industrial Internet of things

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant