CN109547173A

CN109547173A - The transmission method of information in a kind of Internet of Things

Info

Publication number: CN109547173A
Application number: CN201811577107.7A
Authority: CN
Inventors: 王洋
Original assignee: Shenzhen Polytechnic
Current assignee: Shenzhen Polytechnic
Priority date: 2018-12-21
Filing date: 2018-12-21
Publication date: 2019-03-29
Anticipated expiration: 2038-12-21
Also published as: WO2020125552A1; CN109547173B

Abstract

The present invention is suitable for wireless communication field, provide a kind of transmission method of information in Internet of Things, the transmission method is the following steps are included: step S1: first terminal determines data bit number N1 and operating ambient temperature T1 to be sent, step S2: second terminal receives first reference signal, step S3: third terminal receives first reference signal, step S4: after the first terminal receives first feedback information, solve the problems, such as to overcome an equipment in existing machine communication can not effectively transmit the data of oneself generation due to channel, electricity etc..

Description

The transmission method of information in a kind of Internet of Things

Technical field

The invention belongs to a kind of transmission methods of information in wireless communication field more particularly to Internet of Things.

Background technique

5G will meet people in the diversified business demand in the various regions such as inhabitation, work, leisure and traffic, even if close Collect residential quarter, office, stadium, outdoor rally, subway, through street, high-speed rail and wide area covering etc. with ultra high flux density, Superelevation connects number density, the scene of ultrahigh-mobility feature, or user provides ultra high-definition video, virtual reality, enhancing The ultimate attainment business experiences such as reality, cloud desktop, game on line.At the same time, 5G will also penetrate into Internet of Things and various industries field, It is merged with industrial plants, Medical Instruments, vehicles even depth, effectively meets the multiplicity of the vertical industries such as industry, medical treatment, traffic Change business demand, realizes really " all things on earth interconnection ".

5G application scenarios can be divided into two major classes, i.e. mobile broadband (MBB, Mobile Broadband) and Internet of Things (IoT, Internet of Things).Wherein, the major technique demand of mobile broadband access is high capacity, provides high data Rate, to meet constantly increasing for data traffic requirement.Internet of Things is mainly by machine communication (MTC, Machine Type Communication) the driving of demand can be further divided into two types, magnanimity machine communication including low rate (MMC, Massive Machine Communication) and the highly reliable machine communication of low time delay.Wherein, for the magnanimity of low rate Machine communication, the access of magnanimity node low rate, the data packet of transmission is usually smaller, and interval time can be relatively long, this kind of node Cost and power consumption generally also can be very low；The machine communication highly reliable for low time delay, is mainly directed towards real-time and reliability is wanted Ask relatively high machine communication, such as real-time alert, real time monitoring etc..

In 5th Generation Mobile Communication System, the core scenario for needing most further investigation is exactly machine communication, such as industry 4.0, car networking, robot etc. are generated when an equipment can not effectively transmit oneself due to channel, electricity, environment etc. Data when, need to design a kind of transmission method of information in Internet of Things.

Summary of the invention

The purpose of the present invention is to provide a kind of transmission methods of information in Internet of Things, it is intended to which solution overcomes existing machine logical An equipment can not effectively transmit the problem of data of oneself generation due to channel, electricity etc. in letter.

The invention is realized in this way in a kind of Internet of Things information transmission method, the transmission method includes following step It is rapid:

Step S1: first terminal determines data bit number N1 and operating ambient temperature T1 to be sent, when the first terminal will The N1 data bit has retransmitted R1 times to base station and all failures, judges whether that meet N1 is greater than more than or equal to T_N, T1 It is greater than T_R equal to T_T and R1, is such as unsatisfactory for, then without processing, such as meet, then the first terminal sends terminal activation and asks It asks to the base station, after the base station receives terminal activation request, activated terminals, the first terminal sends first with reference to letter Number, wherein the terminal activation request carries the location information and data bit number N1 of the first terminal, the first terminal Terminal activation request is sent by 2*T_R repetitive mode；

Step S2: second terminal receives first reference signal, if the received signal to noise ratio SNR2 of first reference signal Greater than T_SNR, and the operating ambient temperature T2 of the second terminal is less than T_T, then the second terminal sends the first feedback letter Cease to the first terminal, first feedback information includes at least: the second terminal can assist the first terminal to pass Defeated data bit number N2, the channel information between the second terminal and the base station, the second terminal are desired Auxiliary transmission integrates number C2；

Step S3: third terminal receives first reference signal, if the received signal to noise ratio SNR3 of first reference signal Greater than T_SNR, the operating ambient temperature T3 of the third terminal is more than or equal to T_T, and when the battery use of the third terminal Between be more than or equal to 24 hours, then the third terminal sends the second feedback information to the first terminal, second feedback letter Breath includes at least: the third terminal can assist the data bit number N3 of the first terminal transmission, the third terminal branch The spread spectrum codeword information held, the desired auxiliary transmission of third terminal integrate number C3；

Step S4: after the first terminal receives first feedback information, it is determined whether the second terminal can be given Desired auxiliary transmission integrates number C2, if it is then the first terminal selects X from the N1 data bit A data bit is sent to the second terminal, wherein X is more than or equal to the 0, integer less than or equal to N2；

Step S5: after the first terminal receives second feedback information, it is determined whether the third terminal can be given Desired auxiliary transmission integrates number C3, if it is then the first terminal is from remaining (N1-X) a bit Middle Y data bit of selection is sent to the third terminal, wherein Y is more than or equal to the 0, integer less than or equal to N3；

Step S6: the first terminal is based on the channel information and the third terminal between the second terminal and the base station The spread spectrum codeword information of support generates third feedback information, and the third feedback information is sent to the base station, wherein institute It states third feedback information to include at least: the identification information of the second terminal, the second terminal data bit number to be transmitted X, the identification information of the third terminal, the third terminal data bit number Y to be transmitted, the spreading code of the third terminal Word information；

Step S7: the base station is whole to the first terminal, second terminal, third based on the third feedback information received Allocation of transmission resources is held, wherein first terminal, the transfer resource of second terminal are identical, the transfer resource of the third terminal Uplink transmission resource can be all used for the base station；

Step S8: the resource that the first terminal, the second terminal, the third terminal are distributed according to the base station passes respectively Defeated (N1-X-Y) a data bit, X data bit, the Y data bit；

Step S9: after the base station is properly received the X data bit, the auxiliary transmission of the first terminal is integrated into number (C2*X/N2+C3*Y/N3) is subtracted, the auxiliary transmission of second terminal integral number is increased into (C2*X/N2), by described the The auxiliary transmission integral number of three terminals increases (C3*Y/N3).

A further technical solution of the present invention is: the first terminal and the second terminal pass through the first carrier transmission institute It states X data bit, the first terminal and the third terminal and passes through Y data bit described in the second carrier transmission.

A further technical solution of the present invention is: the channel quality between the second terminal and the base station is more than or equal to Channel quality between the first terminal and the base station.

A further technical solution of the present invention is: the work of spread spectrum code word size and the base station that the third terminal uses Make amount of bandwidth direct proportionality, the third terminal transmits the Y number to the base station using corresponding spread spectrum code word According to bit.

A further technical solution of the present invention is: the value that the T_N value is 5000, T_T is 40 degrees Celsius, T_R's Value is 6.

A further technical solution of the present invention is: (N1-X-Y) a data bit and the X data bit are systems One coding, the Y data bit is absolute coding.

A further technical solution of the present invention is: the third terminal sends the Y data bit on unit bandwidth The power used is less than or equal to the thermal noise power that the base station measures on the unit bandwidth.

A further technical solution of the present invention is: the first terminal is determined based on the data bit number N1 to be sent The transmission power of first reference signal, wherein the transmission power is directly proportional to the data bit number N1 to be transmitted Relationship.

A further technical solution of the present invention is: the first terminal is based on the data bit number (N1-X- to be sent Y transmission power of (N1-X-Y) a data bit described in sending to the base station when) is determined, wherein the transmission power and institute Data bit number (N1-X-Y) to be transmitted is stated into logarithmic relationship, P=LOG10 (V*B* (N1-X-Y)), wherein P is transmitting function Rate, V are a regulated variables, and value negotiates confirmation by the base station and the first terminal, and B is that institute is distributed in the base station State the transfer resource of first terminal.

A further technical solution of the present invention is: bit number X determines the transmission X to the second terminal based on the data A data bit gives the transmission power used when the base station, wherein the transmission power is directly proportional to the data bit number X Relationship.

The beneficial effects of the present invention are: overcoming in existing machine communication, an equipment can not due to channel, electricity etc. The problem of effectively transmitting the data of oneself generation, improves the frequency spectrum service efficiency of network.

Detailed description of the invention

Fig. 1 is the flow chart of the transmission method of information in a kind of Internet of Things provided in an embodiment of the present invention；

Fig. 2 is in a kind of Internet of Things provided in an embodiment of the present invention between the different terminals of the transmission method of information and terminal and base Communication scheme between standing；

Fig. 3 is the data splitting distribution schematic diagram of the transmission method of information in a kind of Internet of Things provided in an embodiment of the present invention.

Specific embodiment

With reference to the accompanying drawing 1, Fig. 2, Fig. 3 are described in further detail the implementation of technical solution, in a kind of Internet of Things The transmission method of information, the transmission method the following steps are included:

Embodiment 1

First terminal determines data bit number N1 and operating ambient temperature T1 to be sent, when the first terminal is by the N1 Data bit has retransmitted R1 times to base station and all failures, judges whether that meeting N1 is more than or equal to T_T more than or equal to T_N, T1 It is greater than T_R with R1, is such as unsatisfactory for, then without processing, such as meet, then the first terminal sends terminal activation request to described Base station, after the base station receives terminal activation request, activated terminals, the first terminal sends the first reference signal, wherein institute The location information and data bit number N1, the first terminal for stating the terminal activation request carrying first terminal pass through 2*T_R Secondary repetitive mode sends terminal activation request.Preferably, activation request carries the location information and N1 of first terminal, does so Benefit is base station according to the terminal near the location information of first terminal activation first terminal, is avoided far from first terminal position Terminal be also activated, to improve the power efficiency of whole system.In addition, since first terminal has had sent to base station (R1+1) secondary above-mentioned N1 data bit, in order to ensure base station can be successfully received activation signaling, first terminal passes through 2*T_R Secondary repetitive mode sends terminal activation request to base station.

Second terminal receives first reference signal, if the received signal to noise ratio SNR2 of first reference signal is greater than T_SNR, and the operating ambient temperature T2 of the second terminal is less than T_T, then the second terminal send the first feedback information to The first terminal, first feedback information include at least: the second terminal can assist the first terminal transmission Data bit number N2, the channel information between the second terminal and the base station, the desired auxiliary of second terminal Transmission integral number C2.

Third terminal receives first reference signal, if the received signal to noise ratio SNR3 of first reference signal is greater than The operating ambient temperature T3 of T_SNR, the third terminal are more than or equal to T_T, and the service time of battery of the third terminal is big In being equal to 24 hours, then the third terminal sends the second feedback information to the first terminal, and second feedback information is extremely Include less: the third terminal can assist the data bit number N3 of the first terminal transmission, what the third terminal was supported Codeword information is spread, the desired auxiliary transmission of third terminal integrates number C3.

After the first terminal receives first feedback information, it is determined whether the second terminal expectation can be given Obtained auxiliary transmission integral number C2, if it is then the first terminal selects X number from the N1 data bit The second terminal is sent to according to bit, wherein X is more than or equal to the 0, integer less than or equal to N2.

After the first terminal receives second feedback information, it is determined whether the third terminal expectation can be given Obtained auxiliary transmission integral number C3, if it is then the first terminal is selected from remaining (N1-X) a bit It selects Y data bit and is sent to the third terminal, wherein Y is more than or equal to the 0, integer less than or equal to N3.

The first terminal based between the second terminal and the base station channel information and the third terminal branch The spread spectrum codeword information held generates third feedback information, and the third feedback information is sent to the base station, wherein described Third feedback information includes at least: the identification information of the second terminal, the second terminal data bit number X to be transmitted, The identification information of the third terminal, the third terminal data bit number Y to be transmitted, the spread spectrum code word of the third terminal Information.

The first terminal, second terminal, third terminal are given based on the third feedback information received in the base station Allocation of transmission resources, wherein first terminal, the transfer resource of second terminal are identical, and the transfer resource of the third terminal is The base station can all use uplink transmission resource.

The resource that the first terminal, the second terminal, the third terminal are distributed according to the base station is transmitted respectively (N1-X-Y) a data bit, X data bit, Y data bit.

After the base station is properly received the X data bit, the auxiliary transmission integral number of the first terminal is subtracted (C2*X/N2+C3*Y/N3) is removed, the auxiliary transmission integral number of the second terminal is increased into (C2*X/N2), by the third The auxiliary transmission integral number of terminal increases (C3*Y/N3).

Embodiment 2

After the first terminal receives second feedback information, it is determined whether the third terminal expectation can be given Obtained auxiliary transmission integral number C3, if it is then the first terminal is selected from remaining (N1-X) a bit It selects Y data bit and is sent to the third terminal, wherein Y is more than or equal to the 0, integer less than or equal to N3.Preferably, One terminal and second terminal are passed by X data bit of the first carrier transmission, first terminal and third terminal by the second carrier frequency Defeated Y data bit, wherein the carrier frequency that the first carrier frequency and the second carrier frequency are 6GHz or more, the second carrier frequency are lower than the first carrier frequency, this The low working carrier frequency of the benefit that sample is done is relatively low to working environment susceptibility, to reduce third terminal working environment as far as possible Influence of the temperature to data transmission quality between first terminal and third terminal.

Embodiment 3

Second terminal receives first reference signal, if the received signal to noise ratio SNR2 of first reference signal is greater than T_SNR, and the operating ambient temperature T2 of the second terminal is less than T_T, then the second terminal send the first feedback information to The first terminal, first feedback information include at least: the second terminal can assist the first terminal transmission Data bit number N2, the channel information between the second terminal and the base station, the desired auxiliary of second terminal Transmission integral number C2.Preferably, the channel quality between second terminal and base station is more than or equal between first terminal and base station Channel quality, the advantage of doing so is that second terminal is allowed to help first under the preferable operating ambient temperature that compares as far as possible The more data of terminal transmission are to base station, so that the transmission burden of first terminal be effectively reduced, improve the spectrum efficiency of whole system.

Embodiment 4

The resource that the first terminal, the second terminal, the third terminal are distributed according to the base station is transmitted respectively (N1-X-Y) a data bit, X data bit, Y data bit.Preferably, the spread spectrum code word that third terminal uses The bandwidth of operation size direct proportionality of length and base station, for example, base station operation bandwidth be 5MHz when, what third terminal used Spreading code word size is 8, and when base station operation bandwidth is 10MHz, the spread spectrum code word size that third terminal uses is 16, third terminal Y data bit is transmitted to base station using corresponding spread spectrum code word, the advantage of doing so is that reducing the data of third terminal as far as possible Transimission power transmits data interference effect caused by system uplink using full bandwidth to reduce third terminal as far as possible, together When also improve the spectrum efficiency of system uplink.

Embodiment 5

First terminal determines data bit number N1 and operating ambient temperature T1 to be sent, when the first terminal is by the N1 Data bit has retransmitted R1 times to base station and all failures, judges whether that meeting N1 is more than or equal to T_T more than or equal to T_N, T1 It is greater than T_R with R1, is such as unsatisfactory for, then without processing, such as meet, then the first terminal sends terminal activation request to described Base station, after the base station receives terminal activation request, activated terminals, the first terminal sends the first reference signal, wherein institute The location information and data bit number N1, the first terminal for stating the terminal activation request carrying first terminal pass through 2*T_R Secondary repetitive mode sends terminal activation request.Preferably, activation request carries the location information and N1 of first terminal, does so Benefit is base station according to the terminal near the location information of first terminal activation first terminal, is avoided far from first terminal position Terminal be also activated, to improve the power efficiency of whole system.In addition, since first terminal has had sent to base station (R1+1) secondary above-mentioned N1 data bit, in order to ensure base station can be successfully received activation signaling, first terminal passes through 2*T_R Secondary repetitive mode sends terminal activation request to base station.Preferably, the value that T_N value is 5000, T_T is 40 degrees Celsius, this The largest buffered ability of the purpose that sample is done most of low cost terminals at present is less than or equal to 5000, it is desirable that normal operation circumstances temperature For degree at 38 degrees Celsius hereinafter, more than after above-mentioned value, the data transmission spectrum efficiency of existing terminal can decline 30% or more.

Embodiment 6

First terminal determines data bit number N1 and operating ambient temperature T1 to be sent, when the first terminal is by the N1 Data bit has retransmitted R1 times to base station and all failures, judges whether that meeting N1 is more than or equal to T_T more than or equal to T_N, T1 It is greater than T_R with R1, is such as unsatisfactory for, then without processing, such as meet, then the first terminal sends terminal activation request to described Base station, after the base station receives terminal activation request, activated terminals, the first terminal sends the first reference signal, wherein institute The location information and data bit number N1, the first terminal for stating the terminal activation request carrying first terminal pass through 2*T_R Secondary repetitive mode sends terminal activation request.Preferably, activation request carries location information, the N1 of first terminal, does so Benefit is base station according to the terminal near the location information of first terminal activation first terminal, is avoided far from first terminal position Terminal be also activated, to improve the power efficiency of whole system.In addition, since first terminal has had sent to base station (R1+1) secondary above-mentioned N1 data bit, in order to ensure base station can be successfully received activation signaling, first terminal passes through 2*T_R Secondary repetitive mode sends terminal activation request to base station.

The resource that the first terminal, the second terminal, the third terminal are distributed according to the base station is transmitted respectively (N1-X-Y) a data bit, X data bit, Y data bit.Preferably, as shown in figure 3, (N1-X-Y) number It is that (such as these bits encode by an encoder and export one group 16 Unified coding according to bit and X data bit Long cyclic redundancy check bits), Y data bit is absolute coding, the advantage of doing so is that due to first terminal and The data volume of two terminal transmissions would generally be bigger, and the channel quality between base station is also relatively good, so first terminal and The content that two terminals are sent is similar in the base station side quality of reception, therefore first terminal and second terminal issue the data of base station Whether the bit stream that can integrally judge that (N1-X-Y) a data bit, X data bit are formed with Unified coding, base station end receives Success.In addition, third terminal sends Y data bit, the channel quality of experience using lower power utilization spread spectrum mode Be with first terminal and second terminal it is entirely different, this described Y data bit absolute coding, base station end individually judges this Y Whether a bit receives success, so that the spectrum efficiency of system be effectively promoted, controls the feedback overhead of system.

Embodiment 7

The resource that the first terminal, the second terminal, the third terminal are distributed according to the base station is transmitted respectively (N1-X-Y) a data bit, X data bit, Y data bit.Preferably, third terminal sends Y data bit The power used on unit bandwidth is less than or equal to the thermal noise power that base station measures on unit bandwidth, reason for this is that Because third terminal sends data using whole upstream bandwidths, if not controlling it sends power, can be brought to system uplink non- Often big interference, will lead to system when serious can not work, so must control it sends power.

Embodiment 8

First terminal determines data bit number N1 and operating ambient temperature T1 to be sent, when the first terminal is by the N1 Data bit has retransmitted R1 times to base station and all failures, judges whether that meeting N1 is more than or equal to T_T more than or equal to T_N, T1 It is greater than T_R with R1, is such as unsatisfactory for, then without processing, such as meet, then the first terminal sends terminal activation request to described Base station, after the base station receives terminal activation request, activated terminals, the first terminal sends the first reference signal, wherein institute The location information and data bit number N1, the first terminal for stating the terminal activation request carrying first terminal pass through 2*T_R Secondary repetitive mode sends terminal activation request.Preferably, activation request carries the location information and N1 of first terminal, does so Benefit is base station according to the terminal near the location information of first terminal activation first terminal, is avoided far from first terminal position Terminal be also activated, to improve the power efficiency of whole system.In addition, since first terminal has had sent to base station (R1+1) secondary above-mentioned N1 data bit, in order to ensure base station can be successfully received activation signaling, first terminal passes through 2*T_R Secondary repetitive mode sends terminal activation request to base station.Preferably, first terminal is determined based on data bit number N1 to be sent The transmission power of first reference signal, wherein transmission power and data bit number N1 to be transmitted are proportional, do so The reason is that when first terminal needs the data bit number that transmits more, it is desirable to have more terminals help it to carry out data Transmission, in order to search out these terminals, is bound to increase the transmission power of the first reference signal, in the hope of allowing in more large coverage The terminal of appearance receives the first reference signal.

Embodiment 9

The resource that the first terminal, the second terminal, the third terminal are distributed according to the base station is transmitted respectively (N1-X-Y) a data bit, X data bit, Y data bit.Preferably, first terminal is based on number to be sent According to bit number (N1-X-Y) determine send (N1-X-Y) a data bit to base station transmission power, wherein transmission power with to The data bit number (N1-X-Y) of transmission is at logarithmic relationship, P=LOG10 (V*B* (N1-X-Y)), wherein P is transmission power, and V is One regulated variable, value negotiate confirmation by base station and first terminal, and B is the transfer resource that first terminal is distributed in base station, The advantage of doing so is that first terminal transmission data number it is more, power more tends to be steady, will not without limitation increase, avoid due to Harsh environments locating for first terminal form first terminal when improper increase first terminal transmission power when more severe Adverse effect caused by period, such as reduce its service life or can not work normally, especially analog device.

Embodiment 10

The resource that the first terminal, the second terminal, the third terminal are distributed according to the base station is transmitted respectively (N1-X-Y) a data bit, X data bit, Y data bit.Preferably, second terminal is based on data bit number X Determine the transmission power used when sending X data bit to first base station, wherein transmission power and data bit number X are at just Than relationship, the advantage of doing so is that working environment described in second terminal compares preferably, so as far as possible by increasing by second The transmission power of terminal allows it first terminal is assisted to send more data, and improves the transmission quality of these data.

Using the transmission method of information in such Internet of Things can overcome in existing machine communication an equipment due to channel, The reasons such as electricity can not effectively transmit the problem of data of oneself generation, improve the frequency spectrum service efficiency of network.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims

1. the transmission method of information in a kind of Internet of Things, which is characterized in that the transmission method the following steps are included:

2. transmission method according to claim 1, which is characterized in that the first terminal and the second terminal pass through the X data bit described in one carrier transmission, the first terminal and the third terminal pass through Y number described in the second carrier transmission According to bit.

3. transmission method according to claim 1, which is characterized in that the channel between the second terminal and the base station Quality is more than or equal to the channel quality between the first terminal and the base station.

4. transmission method according to claim 1, which is characterized in that spread spectrum code word size that the third terminal uses with The bandwidth of operation size direct proportionality of the base station, the third terminal are passed using corresponding spread spectrum code word to the base station The defeated Y data bit.

5. transmission method according to claim 1, which is characterized in that the value that the T_N value is 5000, T_T is 40 Degree Celsius, the value of T_R is 6.

6. transmission method according to claim 1, which is characterized in that (N1-X-Y) a data bit and the X Data bit is Unified coding, and the Y data bit is absolute coding.

7. transmission method according to claim 1, which is characterized in that the third terminal sends the Y data bit The power used on unit bandwidth is less than or equal to the thermal noise power that the base station measures on the unit bandwidth.

8. transmission method according to claim 1, which is characterized in that the first terminal is based on the data to be sent Bit number N1 determines the transmission power of first reference signal, wherein the transmission power and the data ratio to be transmitted Special number N1 is proportional.

9. transmission method according to claim 1, which is characterized in that the first terminal is based on the data to be sent Bit number (N1-X-Y) determines transmission power of (N1-X-Y) a data bit described in transmission to the base station when, wherein described Transmission power and the data bit number (N1-X-Y) to be transmitted are at logarithmic relationship, P=LOG10 (V*B* (N1-X-Y)), In, P is transmission power, and V is a regulated variable, and value negotiates confirmation by the base station and the first terminal, and B is described Distribute to the transfer resource of the first terminal in base station.

10. transmission method according to claim 1, which is characterized in that second terminal bit number X based on the data Determine the transmission power used when sending the X data bit to the base station, wherein the transmission power and the data Bit number X is proportional.