Information transmission methods, reception methods and communication devices

Abstract

This application discloses an information transmission method, a receiving method, and a communication device, which belong to the wireless communication technical field. The information transmission method includes performing OVXDM or FTN waveform encoding on data to generate and transmit coded information, where the coded information is generated and / or transmitted based on signal parameters, receiving feedback information transmitted from a receiving end of the coded information, and adjusting the signal parameters based on the feedback information.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to China Patent Application No. 202010688720.7, filed in China on July 16, 2020, the entire contents of which are incorporated herein by reference. [Technical field]

[0002] The present application relates to the field of wireless communication technology, and in particular to an information transmitting method, receiving method and communication device. [Background technology]

[0003] In the related art, the overlapped X-Domain Multiplexing (OVXDM) / Faster-than-Nyquist (FTN) technology artificially introduces Inter Symbol Interference (ISI) and / or Inter Carrier interference (ICI) based on waveform coding theory in the time domain / frequency domain, thereby improving the symbol transmission rate and increasing the equivalent channel capacity. However, the signal after waveform coding puts higher demands on the performance of the receiver, and increases the complexity of the decoding algorithm and the power consumption of the hardware. In general, the larger the time-frequency domain overlap coefficient (also called the number of time-domain overlap layers) during waveform coding, i.e., the more serious the artificially introduced ISI and ICI, the more states the receiver needs to determine, and the higher the complexity of the receiving algorithm. For example, the receiver complexity of the OVTDM waveform increases exponentially with the increase in the time-domain overlap coefficient.

[0004] In a complex electromagnetic wave transmission environment, due to the existence of a large number of scattering, reflection and refraction surfaces, radio signals arrive at a receiving antenna at different times via different paths, that is, the multipath effect of transmission. When the previous and next symbols of a transmitted signal arrive at the same time via different paths, or when the next symbol arrives within the delay extension of the previous symbol, ISI occurs. Similarly, in the frequency domain, due to the frequency offset effect, Doppler effect and other factors, each subcarrier on which a signal is located will have a different degree of frequency offset, and subcarriers that may be orthogonal will overlap, that is, ICI will occur. The ISI / ICI generated in the above signal transmission process will be superimposed on the ISI / ICI introduced by adopting waveform coding during transmission, which increases the complexity of decoding and places higher requirements on the decoding ability of the receiver. Summary of the Invention [Problem to be solved by the invention]

[0005] An objective of the embodiments of the present application is to provide an information transmitting method, a receiving method and a communication device that can solve the problem of high decoding complexity. [Means for solving the problem]

[0006] In order to solve the above technical problems, the present application is realized as follows.

[0007] According to a first aspect, there is provided an information transmission method for use in a communication device, the method comprising: performing OVXDM or FTN waveform encoding on the data to generate and transmit encoded information, the encoded information being generated and / or transmitted based on signal parameters; receiving feedback information transmitted from a receiving end of the encoded information; and adjusting the signal parameters based on the feedback information.

[0008] According to a second aspect, there is provided an information receiving method for use in a communications device, the method comprising: receiving coded information transmitted from a transmitting end, the coded information being generated by the transmitting end performing OVXDM or FTN waveform coding on data, and the coded information being generated and / or transmitted based on signal parameters; decoding the encoded information to determine feedback information; and and transmitting the feedback information to the transmitting end for adjusting the signal parameters.

[0009] According to a third aspect, there is provided an information transmission device, the information transmission device comprising: a first transmitting module for performing OVXDM or FTN waveform encoding on the data to generate and transmit encoded information, the encoded information being generated and / or transmitted based on signal parameters; a first receiving module for receiving feedback information transmitted from a receiving end of the encoded information; and an adjustment module for adjusting the signal parameters based on the feedback information.

[0010] Optionally, the signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K_1 defined in OVXDM and K defined in OVXDM or K_2 defined in cascaded OVXDM, A symbol modulation order corresponding to K or K_2; The frequency domain overlapping factor ζ, N defined in OVXDM and the symbol modulation order corresponding to N, a code rate at which the encoded information is transmitted; and and a parameter of the filter.

[0011] Optionally, the information transmitting device is The second transmitting module further includes a first information transmitting module for transmitting the first information including the signal parameter or an indication of the signal parameter to the receiving end.

[0012] Optionally, when the communication device is a network side device, the first information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; transmitted by one of a broadcast message and as indicated by a DCI; When the communication device is a terminal, the first information is be indicated by the PSCCH; Indicated in the PSSCH; or as indicated by a broadcast message.

[0013] Optionally, the second sending module is used for sending a correspondence table between signal parameters and index values ​​via a broadcast message, and for sending an index value of the signal parameter corresponding to the encoded information via a Dedicated-RRC message or DCI.

[0014] Optionally, the feedback information is feedback information for feeding back whether the analysis of the second information or the encoded information is successful; The second information is a first type of second information including at least one of a bit error rate and a channel measurement parameter, the parameter affecting the equivalent ISI and / or the equivalent ICI in the channel; and a second type of second information comprising the recommended signal parameter or an indication of the recommended signal parameter.

[0015] Optionally, when the communication device is a network side device, the second information is PUSCH and PUCCH and and PUFCH; When the communication device is a terminal, the second information is PSSCH and PSCCH, and PSFCH.

[0016] Optionally, the channel measurement parameters include at least one of a signal to interference and noise ratio, a number of multipaths, a residual frequency offset, a Doppler shift, and a relative velocity.

[0017] Optionally, the indication information of the recommended signal parameter is an index value of the signal parameter, and the adjustment module is used for searching a correspondence table of signal parameters and index values ​​based on the received index value of the recommended signal parameter, determining the signal parameter corresponding to the received index value, and adjusting the current signal parameter based on the signal parameter corresponding to the received index value.

[0018] Optionally, the correspondence table between the signal parameters and the index values ​​is stipulated by a protocol or configured by the communication device.

[0019] Optionally, the recommended signal parameter indication information is indication information for instructing an increase or decrease of a signal parameter, and the adjustment module is used to increase or decrease a current signal parameter according to a preset step based on the recommended signal parameter indication information.

[0020] Alternatively, the feedback information is feedback information for feeding back whether the analysis of the encoded information was successful, and the feedback information includes a NACK message indicating that the analysis of the encoded information was not successful, and the adjustment module is used to adjust signal parameters when the proportion or number of NACK messages within a predetermined time period or within a predetermined number of subframes or slots is greater than a predetermined threshold.

[0021] Optionally, the information transmitting device is The signal processing device further includes a third sending module for sending third information, the third information including the adjusted signal parameters or indication information of the adjusted signal parameters, to the receiving end.

[0022] Optionally, when the communication device is a network side device, the third information is Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; Transmitted by one of a broadcast message and a DCI message; When the communication device is a terminal, the third information is be indicated by the PSCCH; Indicated in the PSSCH; or as indicated by a broadcast message.

[0023] Optionally, the information transmitting device further includes a fourth transmitting module for transmitting a pilot signal, which includes at least one of a synchronization signal, a channel state information reference signal, or a preset reference signal.

[0024] According to a fourth aspect, there is provided an information receiving apparatus, the apparatus comprising: A first receiving module for receiving coded information sent from a transmitting end, the coded information being generated by the transmitting end performing OVXDM or FTN waveform coding on data, the coded information being generated and / or sent based on signal parameters; a first determination module for decoding the encoded information and determining feedback information; a first sending module for sending the feedback information to the transmitting end for adjusting the signal parameters.

[0025] Optionally, the signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K_1 defined in OVXDM and K defined in OVXDM or K_2 defined in cascaded OVXDM, A symbol modulation order corresponding to K or K_2; The frequency domain overlapping factor ζ, N defined in OVXDM and the symbol modulation order corresponding to N, a code rate at which the encoded information is transmitted; and and a parameter of the filter.

[0026] Optionally, the feedback information is feedback information for feeding back whether the analysis of the second information or the encoded information is successful; The second information is a first type of second information including at least one of a bit error rate and a channel measurement parameter, the parameter affecting the equivalent ISI and / or the equivalent ICI in the channel; and a second type of second information comprising the recommended signal parameter or an indication of the recommended signal parameter.

[0027] Optionally, when the communication device is a terminal in an uplink and downlink, the second information is: PUSCH and PUCCH and and PUFCH, When the communication device is a terminal in a side link, the second information is PSSCH and PSCCH, The PSFCH is transmitted by at least one of the following methods:

[0028] Optionally, the channel measurement parameters include at least one of a signal to interference and noise ratio, a number of multipaths, a residual frequency offset, a Doppler shift, and a relative velocity.

[0029] Optionally, the information receiving device is A second receiving module for receiving a pilot signal sent from the transmitting end, the pilot signal including at least one of a synchronization signal, a channel state information reference signal, or a preset reference signal; and a measurement module for measuring a channel based on the pilot signal and obtaining the channel measurement parameters.

[0030] Optionally, when the second information is a second type of second information, the information receiving device: a first acquisition module for acquiring reference information including at least one of a channel measurement parameter, a bit error rate, and a capability of the communication device itself; and a second determination module for determining recommended signal parameters based on the reference information.

[0031] Optionally, the indication of the recommended signal parameter is an index value of the signal parameter or an indication for increasing or decreasing the signal parameter.

[0032] Optionally, the information receiving device is a third receiving module for receiving first information sent from the transmitting end, the first information including a signal parameter corresponding to the encoded information or an indication of the signal parameter; and the first decision module for decoding the encoded information based on signal parameters corresponding to the encoded information indicated by the first information.

[0033] Optionally, when the communication device is a terminal in an uplink and downlink, the first information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; Received by one of a broadcast message and a DCI; When the communication device is a terminal in a side link, the first information is be indicated by the PSCCH; Indicated in the PSSCH; or is indicated by a broadcast message.

[0034] Optionally, the third receiving module is used for receiving a correspondence table of signal parameters and index values ​​transmitted from the transmitting end by a broadcast message, and receiving an index value of a signal parameter corresponding to the coded information transmitted from the transmitting end by a Dedicated-RRC message or DCI.

[0035] Optionally, the information receiving device is The signal processing device further includes a fourth receiving module for receiving third information sent from the transmitting end, the third information including the adjusted signal parameter or the indication information of the adjusted signal parameter.

[0036] Optionally, when the communication device is a terminal in an uplink or downlink, The third information is Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; Received by one of a broadcast message and a DCI message; When the communication device is a terminal in a side link, the first information is be indicated by the PSCCH; Indicated in the PSSCH; or is indicated by a broadcast message.

[0037] According to a fifth aspect, there is provided a method of receiving information, the method comprising: receiving coded information transmitted from a transmitting end, the coded information being generated by the transmitting end performing OVXDM or FTN waveform coding on data, and the coded information being generated and / or transmitted based on signal parameters; receiving first information transmitted from a transmitting end, the first information including a signal parameter corresponding to the encoded information or an indication of the signal parameter; and decoding the encoded information based on signal parameters corresponding to the encoded information indicated by the first information.

[0038] According to a sixth aspect, there is provided an information receiving apparatus, the apparatus comprising: A first receiving module for receiving coded information sent from a transmitting end, the coded information being generated by the transmitting end performing OVXDM or FTN waveform coding on data, the coded information being generated and / or sent based on signal parameters; a second receiving module for receiving first information sent from a transmitting end, the first information including a signal parameter corresponding to the encoded information or an indication of the signal parameter; and a determination module for decoding the encoded information and determining feedback information based on signal parameters corresponding to the encoded information indicated by the first information.

[0039] Optionally, the signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K_1 defined in OVXDM and K defined in OVXDM or K_2 defined in cascaded OVXDM, A symbol modulation order corresponding to K or K_2; The frequency domain overlapping factor ζ, N defined in OVXDM and the symbol modulation order corresponding to N, a code rate at which the encoded information is transmitted; and and a parameter of the filter.

[0040] Optionally, when the communication device is a terminal in an uplink and downlink, the first information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; Received by one of a broadcast message and a DCI; When the communication device is a terminal in a side link, the first information is be indicated by the PSCCH; Indicated in the PSSCH; or is indicated by a broadcast message.

[0041] According to a seventh aspect, there is provided a method of transmitting information, the method comprising: Transmitting first information; The present invention includes performing OVXDM or FTN waveform encoding on data to generate and transmit encoded information, the encoded information being generated and / or transmitted based on signal parameters, and the first information including the signal parameters or indications of the signal parameters.

[0042] According to an eighth aspect, there is provided an information transmission apparatus, the apparatus comprising: a first transmitting module for transmitting first information; and a second transmitting module for performing OVXDM or FTN waveform encoding on the data and generating and transmitting encoded information, the encoded information being generated and / or transmitted based on signal parameters, and the first information including the signal parameters or indications of the signal parameters.

[0043] Optionally, the signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K_1 defined in OVXDM and K defined in OVXDM or K_2 defined in cascaded OVXDM, A symbol modulation order corresponding to K or K_2; The frequency domain overlapping factor ζ, N defined in OVXDM and the symbol modulation order corresponding to N, a code rate at which the encoded information is transmitted; and and a parameter of the filter.

[0044] Optionally, when the communication device is a network side device, the first information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; transmitted by one of a broadcast message and as indicated by a DCI; When the communication device is a terminal, the first information is be indicated by the PSCCH; Indicated in the PSSCH; or as indicated by a broadcast message.

[0045] According to a ninth aspect, there is provided a communications device comprising a processor, a memory, and a program or instructions stored in the memory and operable to run on the processor, wherein the program or instructions, when executed by the processor, realize the steps of the information transmission method of the first aspect above, or the program or instructions, when executed by the processor, realize the steps of the information reception method of the second aspect above, or the program or instructions, when executed by the processor, realize the steps of the information reception method of the fifth aspect above, or the program or instructions, when executed by the processor, realize the steps of the information transmission method of the seventh aspect above.

[0046] According to a tenth aspect, there is provided a readable storage medium having a program or instructions stored therein, which, when executed by a processor, performs steps of the information transmission method described in the first aspect, or performs steps of the information reception method described in the second aspect, or performs steps of the information reception method described in the fifth aspect, or performs steps of the information transmission method described in the seventh aspect.

[0047] According to an eleventh aspect, there is provided a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor running a program or instruction of a network side device and used to realize the information transmission method described in the first aspect, or to realize the information reception method described in the second aspect, or to realize the information reception method described in the fifth aspect, or to realize the information transmission method described in the seventh aspect. Effect of the Invention

[0048] In the embodiment of the present application, the transmitting end of the coded information can dynamically adjust signal parameters related to the generation and / or transmission of the coded information based on the feedback information of the receiving end, so as to improve the transmission performance, and can control the decoding complexity of the receiving end to ensure that the decoding is performed correctly and efficiently. In addition, the transmitting end of the coded information can instruct the receiving end on signal parameters corresponding to the coded information, and the receiving end can determine a decoding algorithm according to the signal parameters, so as to control the decoding complexity of the receiving end to ensure that the decoding is performed correctly and efficiently. [Brief description of the drawings]

[0049] [Figure 1] 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied. [Diagram 2] 1 is a schematic diagram of a serial cascaded OVTDM implementation scheme; [Diagram 3] FIG. 13 is a schematic diagram of a comparison of signals without and with time domain overlap. [Figure 4] 1 is a flowchart of an information transmission method according to one embodiment of the present application; [Diagram 5] 4 is a flowchart of an information transmission method according to another embodiment of the present application. [Figure 6] 2 is a schematic diagram of a radio frame with pilots according to an embodiment of the present application; [Figure 7] 4 is a flowchart of an information transmission method according to yet another embodiment of the present application. [Figure 8] 2 is a flowchart of an information receiving method according to one embodiment of the present application; [Figure 9] 4 is a flowchart of an information receiving method according to another embodiment of the present application; [Figure 10] 4 is a flowchart of an information receiving method according to yet another embodiment of the present application. [Figure 11] 2 is an interaction flowchart between a sending end and a receiving end in one embodiment of the present application; [Figure 12] 4 is an interaction flowchart between a sending end and a receiving end in another embodiment of the present application; [Figure 13] 10 is an interaction flowchart between a sending end and a receiving end in yet another embodiment of the present application; [Figure 14] FIG. 2 is a structural schematic diagram of an information transmitting device according to one embodiment of the present application; [Figure 15] FIG. 2 is a structural schematic diagram of an information receiving device according to an embodiment of the present application; [Figure 16] 4 is a flowchart of an information receiving method according to a further embodiment of the present application; [Figure 17] FIG. 2 is a structural schematic diagram of an information receiving device according to another embodiment of the present application; [Figure 18] 4 is a flowchart of an information transmission method according to a further embodiment of the present application; [Figure 19] FIG. 2 is a structural schematic diagram of an information transmitting device according to another embodiment of the present application; [Figure 20] FIG. 2 is a structural schematic diagram of a communication device according to one embodiment of the present application; [Figure 21]FIG. 2 is a schematic diagram of the hardware structure of a terminal according to one embodiment of the present application; [Figure 22] FIG. 2 is a schematic diagram of the hardware structure of a network side device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0050] The following clearly and completely describes the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without any creative effort are within the scope of protection of the present application.

[0051] The terms "first," "second," etc. in the specification and claims of the present application are intended to distinguish between similar objects and are not intended to describe a particular order or sequence. It is to be understood that data so used are interchangeable where appropriate, such that the embodiments of the present application may be performed in an order other than that shown or described herein, and that the objects distinguished by "first" and "second" are generally of the same type and do not limit the number of objects, e.g., the first object may be one or more. Note that "and / or" in the specification and claims represents at least one of the objects connected, and the character " / " generally represents an "or" relationship between the related objects.

[0052] It should be noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be applied to other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are always used interchangeably, and the techniques described may be used in the above-mentioned systems and radio technologies, or in other systems and radio technologies. However, although the following description describes New Radio (NR) systems for illustrative purposes and uses NR terminology in most of the following description, these technologies may also be used in applications other than NR system applications, such as sixth generation (6G) systems. th This may be applied to a 6G (6th Generation) communication system.

[0053] FIG. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network side device 12. Here, the terminal 11 may be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a terminal side device such as a mobile phone, a tablet personal computer, a laptop computer (or called a notebook computer), a personal digital assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), a wearable device, a vehicle-mounted device (VUE), a pedestrian terminal (PUE), etc., and the wearable device includes a bracelet, an earphone, glasses, etc. It should be noted that the specific type of the terminal 11 in the embodiment of the present application is not limited. The network side equipment 12 may be a base station or a core network, where the base station may be called a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or any other suitable term in the art, and as long as the same technical effect is achieved, the base station is not limited to a specific technical term, and it should be explained that in the embodiments of this application, only a base station in an NR system is taken as an example, but the specific type of the base station is not limited.

[0054] OVXDM / FTN are both signal processing methods that artificially introduce a moderate amount of ISI and / or ICI by pre-processing the transmission signal (also called waveform coding), with the aim of increasing the symbol transmission rate, i.e., the number of symbols transmitted per Hertz per second (Hz*s). Here, the full name of FTN is Faster-than-Nyquist, i.e., faster than Nyquist technology. OVXDM includes overlapped time division multiplexing (OVTDM), overlapped frequency division multiplexing (OVFDM) and overlapped code division multiplexing (OVCDM), and the combination technology of OVTDM and OVFDM, and its full name is overlapped X-Domain Multiplexing, i.e., X-domain overlap multiplexing. At the same time, the introduction of ISI and ICI may increase the decoding complexity and lead to an improvement in bit error rate. However, the detrimental effect of increasing bit error rate can be suppressed by using advanced decoding algorithms, and overall, the above method of increasing symbol transmission rate can still improve channel capacity.

[0055] The formula for the transmitted signal S(t) after waveform encoding is:

number

[0056] In OVTDM technology, there is a serial cascaded OVTDM implementation scheme, as shown in Figure 2. In the serial cascaded OVTDM, the time domain overlap is implemented in two levels, the first level is pure overlapped OVTDM without mutual shift, called P-OVTDM (Pure-OVTDM), and the second level is shifted overlapped OVTDM, called S-OVTDM (Shifted-OVTDM). The related parameter of the first level of time domain overlap is K1, and the related parameter of the second level of time domain overlap is K in the above formula. Here, one special form of P-OVTDM is the traditional modulation technology, such as x-phase shift keying (xPSK) and x-quadrature amplitude modulation (xQAM) technology used in NR.

[0057] The occurrence of ISI will be explained below using Figure 3 as an example. Δ = 0.8, i.e., when the time domain waveform overlap coefficient τ = 0.8, the waveform-coded signal generates ISI because the width of the pulse waveform carrying the information of other sampling points at a certain time point is not zero. In Fig. 3, the abscissa is time and the ordinate is waveform width.

[0058] Let the impulse response function of the multipath channel be h CH (t), then the signal after passing through the channel is equivalent to

number

number

[0059] The overlapping effect of waveform coding and multipath channels leads to an increase in the number of equivalent multipaths and closer symbol and subcarrier spacing, which increases the equivalent time-frequency domain overlapping degree. This increase in the time-frequency domain overlapping degree is reflected as more severe ISI and ICI at the receiving end, which poses challenges in receiver design. The complexity of the maximum likelihood (ML) type receiver, which has the best theoretical performance, increases as the waveform overlapping degree increases, and when {K,N} is relatively large, it cannot be realized in hardware in actual engineering. Meanwhile, fast algorithms that fix the decoding complexity are not effective for signals with a relatively high overlapping degree.

[0060] In other words, the ISI / ICI that occurs in the process of a radio signal passing through a complex channel is superimposed on the ISI / ICI that the transmitter introduces by using waveform coding, resulting in equivalent but more severe ISI / ICI. Due to the limitations of the hardware conditions of the receiver, the complexity of the decoding algorithm that can be realized is limited, and when the degree of overlap exceeds a certain threshold, the required decoding complexity increases significantly, exceeding the capability of the decoding algorithm and making it impossible to decode.

[0061] Hereinafter, the information transmitting method, receiving method and communication device according to the embodiments of the present application will be described in detail through specific embodiments and application scenarios with reference to the drawings.

[0062] First, it should be noted that the communication device in the embodiment of the present application may be a network side device or a terminal device, for example, the transmitting end is a network side device and the receiving end is a terminal device, or both the transmitting end and the receiving end are terminal devices.

[0063] Referring to FIG. 4, an embodiment of the present application provides an information transmission method for use in a communication device, the method including: a step 41 of performing OVXDM or FTN waveform encoding on the data to generate and transmit encoded information, the encoded information being generated and / or transmitted based on signal parameters; receiving feedback information transmitted from a receiving end of the encoded information; and adjusting 43 said signal parameters based on said feedback information.

[0064] In an embodiment of the present application, the transmitting end of the coded information can dynamically adjust signal parameters related to the generation and / or transmission of the coded information based on feedback information from the receiving end, thereby controlling the decoding complexity of the receiving end and ensuring that the decoding is performed correctly and efficiently.

[0065] In an embodiment of the present application, optionally, the signal parameters are: 1) The time domain overlap factor τ, 2) The symbol modulation order corresponding to τ, 3) K1 defined in OVXDM and 4) K defined in OVXDM or K2 defined in cascaded OVXDM; 5) A symbol modulation order corresponding to K or K2; 6) The frequency domain overlapping factor ζ; 7) N defined in OVXDM, 8) The symbol modulation order corresponding to N; 9) A code rate at which the encoded information is transmitted; and 10) At least one of the parameters of the filter, such as the roll-off factor α, the number of filter time domain sampling points, and / or the main lobe width parameter.

[0066] Referring to FIG. 5, an embodiment of the present application further provides an information transmission method for use in a communication device, comprising: a step 51 of performing OVXDM or FTN waveform encoding on the data to generate and transmit encoded information, the encoded information being generated and / or transmitted based on signal parameters; transmitting 52 first information to the receiving end, the first information including the signal parameter or an indication of the signal parameter; receiving feedback information transmitted from a receiving end of the encoded information; and adjusting 54 said signal parameters based on said feedback information.

[0067] In an embodiment of the present application, the transmitting end actively transmits signal parameters or indication information of the signal parameters to the receiving end, so that the receiving end can select an appropriate decoding algorithm based on the signal parameters adopted by the transmitting end, and the transmitting end can dynamically adjust signal parameters related to the generation and / or transmission of encoded information based on the feedback information of the receiving end, thereby controlling the decoding complexity of the receiving end and ensuring that the decoding is performed correctly and efficiently.

[0068] In an embodiment of the present application, optionally, when the communication device (transmitting end) is a network side device, the first information is transmitted in one of the following manners:

[0069] 1) Indicated by a Physical Downlink Control Channel (PDCCH), For example, the first information is explicitly indicated in downlink control information (DCI), or the first information is implicitly indicated by a PDCCH scrambling scheme.

[0070] 2) Indicated by a Dedicated Radio Resource Control (Dedicated-RRC) message on the Physical Downlink Shared Channel (PDSCH).

[0071] 3) Instructed by a broadcast message; Here, the broadcast message may include a master system information block (MIB) in a physical broadcast channel (PBCH), a physical broadcast channel demodulation reference signal (PBCH-DMRS), PBCH scrambling, and a system information block (SIB) in a PDSCH.

[0072] For example, the first information is explicitly indicated in a PBCH MIB, or the first information is implicitly indicated in a PBCH-DMRS, or the first information is implicitly indicated in a PBCH scrambling format, or the first information is indicated in a SIB message in a PDSCH.

[0073] 4) Indicated by a broadcast message and a Dedicated-RRC message.

[0074] 5) As indicated by broadcast messages and DCI.

[0075] Optionally, sending the first information to the receiving end includes sending a correspondence table between signal parameters and index values ​​by a broadcast message, and sending an index value of the signal parameter corresponding to the coded information by a Dedicated-RRC message or DCI.

[0076] In this embodiment, a correspondence table between signal parameters and index values ​​may be configured in advance at the receiving end through a broadcast message, and the index value of the signal parameter corresponding to the currently transmitted coded information may be indicated through a Dedicated-RRC message or DCI, so that the receiving end can search the correspondence table between signal parameters and index values ​​based on the received index value, and determine the signal parameters to be adopted by the transmitting end.

[0077] In an embodiment of the present application, optionally, when the communication device (transmitting end) is a terminal, the first information is: 1) Indicated by a Physical Sidelink Control Channel (PSCCH); 2) It is indicated in a physical sidelink shared channel (PSSCH); 3) as indicated by a broadcast message.

[0078] The broadcast message may be a physical broadcast shared channel (PBSCH).

[0079] In some embodiments of the present application, in the above embodiment, the feedback information sent by the receiving end is second information, and the second information is one of the following: 1) a first type of second information including at least one of a bit error rate and a channel measurement parameter, the parameter being a parameter affecting the equivalent ISI and / or the equivalent ICI in the channel; The bit error rate is a bit error rate obtained by a receiving end decoding the coded information.

[0080] The channel measurement parameters are parameters obtained by the receiving end by measuring a channel.

[0081] Optionally, the channel measurement parameters include at least one of a Signal to Interference plus Noise Ratio (SINR), a number of multipaths, a residual frequency offset (which is the frequency offset after the frequency offset is corrected), a Doppler shift, and a relative velocity, and the influence of these channel measurement parameters may be indirectly reflected on the bit error rate.

[0082] In an embodiment of the present application, when the first type of second information includes channel measurement parameters, optionally, before receiving feedback information transmitted from a receiving end of the encoded information, a pilot signal is transmitted, so that the receiving end can measure a channel and obtain the channel measurement parameters based on the pilot signal.

[0083] Referring to Fig. 6, in the embodiment of the present application, a pilot (RS in Fig. 6) may be inserted into a radio frame transmitted from a transmitting end, and the pilot does not need to go through waveform coding in order to accurately reflect the channel condition. Therefore, the pilot signal may include at least one of a synchronization signal, a channel state information reference signal, or a preset reference signal.

[0084] 2) A second type of second information including a recommended signal parameter or an indication of a recommended signal parameter.

[0085] In some embodiments of the present application, optionally, the indication information of the recommended signal parameter is an index value of the signal parameter, and the step of adjusting the signal parameter based on the feedback information in the above embodiment includes: searching a correspondence table of signal parameters and index values ​​based on the received index value of the recommended signal parameter, determining a signal parameter corresponding to the received index value, and adjusting a current signal parameter based on the signal parameter corresponding to the received index value.

[0086] Optionally, the correspondence table between the signal parameters and the index values ​​is stipulated by a protocol or configured by the communication device.

[0087] Alternatively, the index value may be an overlapping factor, for example a time domain overlapping factor or a frequency domain overlapping factor.

[0088] In some further embodiments of the present application, optionally, the indication information of the signal parameter is indication information for instructing an increase or decrease of the signal parameter, and the step of adjusting the signal parameter based on the feedback information in the above embodiment includes increasing or decreasing the current signal parameter according to a pre-set step based on the indication information of the recommended signal parameter.

[0089] Optionally, the pre-configured steps are stipulated by a protocol or configured by the communication device.

[0090] In an embodiment of the present application, optionally, when the communication device is a network side device, the second information is: A Physical Uplink Shared Channel (PUSCH); A physical uplink control channel (PUCCH); and a Physical Uplink Feedback Channel (PUFCH).

[0091] For example, if the second information is an indication of a recommended signal parameter, it may be indicated in a scheduling request (SR) using a smaller number of bits.

[0092] If a PUFCH is defined, the second information may also be transmitted in the PUFCH.

[0093] When the second information is a set of channel measurement parameters, it may be indicated in a buffer state report (BSR) in a medium access control unit (MAC CE) format, or may be transmitted in a data format on the PUSCH.

[0094] When the communication device is a terminal, the second information is PSSCH and PSCCH, and a Physical Sidelink Feedback Channel (PSFCH).

[0095] In some embodiments of the present application, the feedback information transmitted from the receiving end is feedback information for feeding back whether the encoded information has been successfully analyzed, and the feedback information is, for example, a non-acknowledgement (NACK).

[0096] Alternatively, the feedback information is feedback information for feeding back whether the analysis of the encoded information was successful, and the feedback information includes a NACK message indicating that the analysis of the encoded information was not successful, and the step of adjusting the signal parameters based on the feedback information in the above embodiment includes adjusting the signal parameters when the proportion or number of NACK messages within a predetermined time period or within a predetermined number of subframes or slots is greater than a predetermined threshold.

[0097] Referring to FIG. 7, an embodiment of the present application further provides an information transmission method for use in a communication device, the method including: a step 71 of performing OVXDM or FTN waveform encoding on the data to generate and transmit encoded information, the encoded information being generated and / or transmitted based on signal parameters; transmitting 72 (in some embodiments of the present application, step 72 may not be included) first information including the signal parameter or an indication of the signal parameter to the receiving end; receiving feedback information transmitted from a receiving end of the encoded information; adjusting 74 the signal parameters based on the feedback information; and transmitting (75) third information to the receiving end, the third information including the adjusted signal parameter or an indication of the adjusted signal parameter.

[0098] In an embodiment of the present application, the transmitting end actively sends signal parameters or indication information of the signal parameters to the receiving end, so that the receiving end can select an appropriate decoding algorithm based on the signal parameters adopted by the transmitting end, and the transmitting end can dynamically adjust signal parameters related to the generation and / or transmission of encoded information based on the feedback information of the receiving end, and indicate the adjusted signal parameters to the receiving end, thereby controlling the decoding complexity of the receiving end and ensuring that the decoding is performed correctly and efficiently.

[0099] Optionally, when the communication device is a network side device, the third information is sent in one of the following manners:

[0100] 1) Instructed by PDCCH, For example, the third information is explicitly indicated in the DCI, or the third information is implicitly indicated by a PDCCH scrambling scheme.

[0101] 2) Indicated by a Dedicated-RRC message in the PDSCH.

[0102] 3) Instructed by a broadcast message; Here, the broadcast message may include a MIB in the PBCH, a PBCH-DMRS, a PBCH scramble, or a SIB message in the PDSCH.

[0103] 4) Indicated by a broadcast message and a Dedicated-RRC message.

[0104] 5) As indicated by broadcast messages and DCI.

[0105] Alternatively, a correspondence table between signal parameters and index values ​​is defined by the protocol, the correspondence table between signal parameters and index values ​​used in the current cell is notified to the UE by a broadcast message, and the index value of the currently adopted signal parameter is indicated by an RRC message or a DCI, so that the UE obtains a specific set of signal parameters. Different cells may use different correspondence tables, and the correspondence table used by the same cell may be dynamically changed and indicated by a broadcast message.

[0106] Optionally, when the communication device is a terminal, the third information is: be indicated by the PSCCH; Indicated in the PSSCH; or as indicated by a broadcast message.

[0107] Referring to FIG. 8, an embodiment of the present application further provides an information receiving method for use in a communication device, the method including: Step 81 of receiving coded information transmitted from a transmitting end, the coded information being generated by the transmitting end performing OVXDM or FTN waveform coding on data, the coded information being generated and / or transmitted based on signal parameters; a step 82 of decoding the encoded information and determining feedback information; and transmitting 83 the feedback information to the transmitting end for adjusting the signal parameters.

[0108] In an embodiment of the present application, the receiving end of the encoded information can send feedback information to the transmitting end, so that the transmitting end can dynamically adjust signal parameters related to the generation and / or transmission of the encoded information based on the feedback information, thereby controlling the decoding complexity of the receiving end and ensuring that the decoding is performed correctly and efficiently.

[0109] In an embodiment of the present application, optionally, the signal parameters are: 1) The time domain overlap factor τ, 2) The symbol modulation order corresponding to τ; and 3) K1 defined in OVXDM and 4) K defined in OVXDM or K2 defined in cascaded OVXDM; 5) A symbol modulation order corresponding to K or K2; 6) The frequency domain overlapping factor ζ; 7) N defined in OVXDM, 8) The symbol modulation order corresponding to N; 9) A code rate at which the encoded information is transmitted; and 10) filter parameters.

[0110] Referring to FIG. 9, an embodiment of the present application further provides an information receiving method for use in a communication device, comprising: receiving coded information transmitted from a transmitting end, the coded information being generated by the transmitting end performing OVXDM or FTN waveform coding on data, the coded information being generated and / or transmitted based on signal parameters; receiving 92 first information transmitted from the transmitting end, the first information including signal parameters corresponding to the coded information or an indication of the signal parameters; a step 93 of decoding the coded information and determining feedback information based on signal parameters corresponding to the coded information indicated by the first information; and transmitting 94 the feedback information to the transmitting end for adjusting signal parameters.

[0111] In an embodiment of the present application, the receiving end of the encoded information can select an appropriate decoding algorithm based on signal parameters indicated by the transmitting end, and can send feedback information to the transmitting end, so that the transmitting end can dynamically adjust signal parameters related to the generation and / or transmission of the encoded information based on the feedback information, thereby controlling the decoding complexity of the receiving end and ensuring that the decoding is performed correctly and efficiently.

[0112] In an embodiment of the present application, optionally, the communication device is a terminal in an uplink and downlink, and the first information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; Received by one of a broadcast message and a DCI; Optionally, receiving the first information transmitted from the transmitting end includes receiving a correspondence table of signal parameters and index values ​​transmitted from the transmitting end by a broadcast message, and receiving an index value of a signal parameter corresponding to the coded information transmitted from the transmitting end by a Dedicated-RRC message or DCI.

[0113] When the communication device is a terminal in a side link, the first information is be indicated by the PSCCH; Indicated in the PSSCH; or is indicated by a broadcast message.

[0114] In some embodiments of the present application, in the above embodiment, the feedback information sent by the receiving end is second information, and the second information is one of the following: 1) a first type of second information including at least one of a bit error rate and a channel measurement parameter, the parameter being a parameter influencing the equivalent ISI and / or the equivalent ICI in the channel; Optionally, the channel measurement parameters include at least one of a signal to interference and noise ratio, a number of multipaths, a residual frequency offset, a Doppler shift, and a relative velocity.

[0115] In an embodiment of the present application, when the first type of second information includes channel measurement parameters, optionally, before sending the feedback information to the transmitting end, the method further includes receiving a pilot signal transmitted from the transmitting end, measuring a channel according to the pilot signal, and obtaining the channel measurement parameters, where the pilot signal includes at least one of a synchronization signal, a channel state information reference signal, or a preset reference signal.

[0116] 2) A second type of second information containing the recommended signal parameter or an indication of the recommended signal parameter.

[0117] In an embodiment of the present application, optionally, when the second information is a second type of second information, before sending the feedback information to the transmitting end, the method further includes obtaining reference information including at least one of a channel measurement parameter, a bit error rate, and an inherent capability of the communication device, and determining recommended signal parameters based on the reference information.

[0118] Optionally, the indication of the recommended signal parameter is an index value of the signal parameter, or an indication for instructing to increase or decrease the signal parameter. For example, the indication of the recommended signal parameter may be a 1-bit mark, which indicates an increase / decrease of the time-frequency domain overlapping coefficient by 0 / 1, and the increase / decrease step may be defined by a protocol.

[0119] When the communication device is a terminal in an uplink and downlink, the second information is PUSCH and PUCCH and and PUFCH, When the communication device is a terminal in a side link, the second information is PSSCH and PSCCH, The PSFCH is transmitted by at least one of the following methods:

[0120] In some embodiments of the present application, the feedback information transmitted from the receiving end is feedback information for feeding back whether the encoded information has been successfully analyzed, and the feedback information is, for example, a non-acknowledgement (NACK).

[0121] Referring to FIG. 10, an embodiment of the present application further provides an information receiving method for use in a communication device, the method including: Step 101: receiving coded information transmitted from a transmitting end, the coded information being generated by the transmitting end performing OVXDM or FTN waveform coding on data, the coded information being generated and / or transmitted based on signal parameters; receiving 102 first information transmitted from the transmitting end, the first information including signal parameters corresponding to the encoded information or an indication of the signal parameters (in some embodiments of the present application, step 102 may not be included); a step 103 of decoding the coded information and determining feedback information based on signal parameters corresponding to the coded information indicated by the first information; sending the feedback information to the transmitting end for adjusting signal parameters; and receiving 105 third information sent from the transmitting end, the third information including the adjusted signal parameter or an indication of the adjusted signal parameter.

[0122] In an embodiment of the present application, the receiving end can select an appropriate decoding algorithm based on signal parameters indicated by the transmitting end, and can send feedback information to the transmitting end, so that the transmitting end can dynamically adjust signal parameters related to the generation and / or transmission of encoded information based on the feedback information, thereby controlling the decoding complexity of the receiving end and ensuring that the decoding is performed correctly and efficiently.

[0123] Optionally, when the communication device is a terminal in an uplink and downlink, the third information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; Transmitted by one of a broadcast message and a DCI message; When the communication device is a terminal in a side link, the third information is be indicated by the PSCCH; Indicated in the PSSCH; or as indicated by a broadcast message.

[0124] The following describes the information transmission and reception method of the present application with examples.

[0125] Method 1-1: The transmitting end sends first information including signal parameters to the receiving end, the receiving end feeds back second information including a bit error rate to the transmitting end, the transmitting end adjusts the signal parameters according to the bit error rate, and sends third information including the adjusted signal parameters to the receiving end.

[0126] Scheme 1-2: The transmitting end sends first information including signal parameters to the receiving end. The receiving end feeds back second information including channel measurement parameters to the transmitting end. The transmitting end adjusts the signal parameters according to the channel measurement parameters, and sends third information including the adjusted signal parameters to the receiving end. The channel measurement parameters include at least one of the following: signal-to-interference-plus-noise ratio, multipath number, residual frequency offset, Doppler shift, and relative velocity.

[0127] Scheme 1-3: The transmitting end sends first information including signal parameters to the receiving end. The receiving end feeds back second information including indication information of recommended signal parameters to the transmitting end according to the channel measurement parameters and the user's own capability. The transmitting end searches a correspondence table between signal parameters and index values ​​according to an index value in the indication information of the recommended signal parameters, determines a signal parameter corresponding to the received index value, adjusts the signal parameter according to the signal parameter corresponding to the received index value, and sends third information including the adjusted signal parameter to the receiving end. Here, the correspondence table between signal parameters and index values ​​is defined by a protocol. The index value may be a duplication factor.

[0128] Method 2-1: The transmitting end sends first information including signal parameters to the receiving end. The receiving end judges whether the signal parameters are appropriate based on the channel measurement parameters, and feeds back second information including indication information of recommended signal parameters (e.g., 1 bit for instructing to increase or decrease the signal parameters) to the transmitting end according to the judgment result. The transmitting end adjusts the signal parameters based on the indication information of recommended signal parameters, and sends third information including the adjusted signal parameters to the receiving end. For example, the indication information of recommended signal parameters may be a 1-bit mark, which indicates an increase / decrease of the time-frequency domain overlapping coefficient by 0 / 1, and the increase / decrease step may be defined by a protocol.

[0129] Method 2-2: the transmitting end sends first information including signal parameters to the receiving end. The receiving end proposes recommended signal parameters based on the channel measurement parameters, and sends the recommended signal parameters to the transmitting end. The transmitting end adjusts the signal parameters based on the received recommended signal parameters, and sends third information including the adjusted signal parameters to the receiving end. The channel measurement parameters include at least one of the following: signal-to-interference-and-noise ratio, multipath number, residual frequency offset, Doppler shift, and relative velocity.

[0130] Although the above methods transmit different information, they all interact with each other using the first information, the second information, and the third information. The basic general flow is shown in Figure 11.

[0131] The following describes the above information transmitting and receiving methods of the present application with reference to specific application scenarios.

[0132] Example 1 of the present application: In this embodiment, the network side device transmits the first information to the terminal device, and the first information may be transmitted in the PDCCH (for example, the first information is explicitly indicated in the DCI, or the first information is implicitly indicated in the PDCCH scrambling manner). The terminal device always uses the first information carried in the last successfully analyzed DCI.

[0133] The second information may be transmitted via one or more of a PUSCH, a PUCCH, and a PUFCH.

[0134] For example, if the second information is an indication of a recommended signal parameter, it may be indicated in a scheduling request (SR) using a smaller number of bits.

[0135] When the second information is a set of channel measurement parameters, it may be indicated in a buffer state report (BSR) in a medium access control unit (MAC CE) format, or may be transmitted in a data format on the PUSCH.

[0136] If a PUFCH is defined, the second information may also be transmitted in the PUFCH.

[0137] The third information may be indicated in the PDCCH (eg, the third information is explicitly indicated in the DCI, or the third information is implicitly indicated in a PDCCH scrambling scheme).

[0138] Embodiment 2 of the present application: In this embodiment, the network side equipment transmits first information to the terminal equipment, and the first information may be transmitted in the form of a broadcast message (for example, explicitly indicating the first information in an MIB of the PBCH, or implicitly indicating the first information in a PBCH-DMRS, or implicitly indicating the first information in a PBCH scrambling format, or indicating the first information in a SIB message in the PDSCH).

[0139] The second information may be transmitted via one or more of a PUSCH, a PUCCH, and a PUFCH.

[0140] For example, if the second information is an indication of a recommended signal parameter, it may be indicated in a scheduling request (SR) using a smaller number of bits.

[0141] When the second information is a set of channel measurement parameters, it may be indicated in a buffer state report (BSR) in a medium access control unit (MAC CE) format, or may be transmitted in a data format on the PUSCH.

[0142] If a PUFCH is defined, the second information may also be transmitted in the PUFCH.

[0143] The third information PDSCH is indicated by a Dedicated-RRC message and refreshes the signal parameters indicated in the broadcast message.

[0144] As shown in FIG. 12, the advantage of embodiment 2 over embodiment 1 is that the current signal parameters can be conveyed to all UEs within the coverage through one broadcast message; if a UE finds that the signal parameters are not suitable, it can independently feedback to the transmitting end, and the transmitting end can independently adjust the signal parameters for this UE and notify in dedicated-RRC, thus avoiding leaving fixed fields in PDCCH and saving overhead.

[0145] Third embodiment of the present application: In this embodiment, the first information may be indicated in the form of a combination of a broadcast message+Dedicated RRC or a broadcast message+DCI. Here, the broadcast message may include a MIB, a PBCH-DMRS, a PBCH scrambling, or a SIB message in a PDSCH. Optionally, a correspondence table between signal parameters and index values ​​is defined by a protocol, a correspondence table between signal parameters and index values ​​used in a current cell is notified to the UE by a broadcast message, and an index value is indicated by an RRC message or a DCI, so that the UE obtains a specific set of signal parameters. Different cells may use different correspondence tables, and the correspondence table used by the same cell may be dynamically changed and indicated by a broadcast message.

[0146] The second information may be transmitted via one or more of a PUSCH, a PUCCH, and a PUFCH.

[0147] For example, if the second information is an indication of a recommended signal parameter, it may be indicated in a scheduling request (SR) using a smaller number of bits.

[0148] When the second information is a set of channel measurement parameters, it may be indicated in a buffer state report (BSR) in a medium access control unit (MAC CE) format, or may be transmitted in a data format on the PUSCH.

[0149] If a PUFCH is defined, the second information may also be transmitted in the PUFCH.

[0150] The third information may indicate an index value by Dedicated RRC or DCI to refresh the signal parameter indicated in the first information.

[0151] As shown in Figure 13, the advantage of embodiment 3 over embodiment 2 is that the transmitting end can send the correspondence table between the current signal parameters and index values ​​to all UEs in the coverage area through one broadcast message, and can specifically configure each UE through a dedicated message, saving overhead and providing considerable flexibility. At the same time, the UE can directly indicate the index value of the recommended signal parameter by feeding back a small number of bits, providing a certain autonomy and also saving feedback overhead.

[0152] Example 4 of the present application: (corresponding to Open Loop Link Adaptive (OLLA)) In this embodiment, the first information may be transmitted in the format in the first and second embodiments.

[0153] There is no need to transmit the second information. The transmitting end counts the ACK messages that the receiving end successfully analyzes the encoded information, and if the proportion or number of NACK messages within a preset time period or within a preset number of subframes or slots is greater than a preset threshold, the transmitting end adjusts signal parameters.

[0154] The third information may be indicated in the PDCCH (eg, explicitly indicated in the DCI or implicitly indicated in the PDCCH scrambling scheme).

[0155] Example 5 of the present application: In this embodiment, the network side device does not transmit the first information, but first generates a corresponding pilot signal according to the default signal parameter settings defined in the protocol, for example, a pilot signal whose transmitting end has a transmission overlap count of 1.

[0156] The UE transmits second information including recommended signal parameters to the network side equipment based on the channel measurement results (eg, the measurement results of the pilot signal).

[0157] The network side device transmits third information including the adjusted signal parameters, and the third information may be indicated in the PDCCH (e.g., explicitly indicated in the DCI or implicitly indicated in the PDCCH scrambling scheme).

[0158] In this embodiment, there is no first information.

[0159] The above embodiment can be applied not only to the communication between a network device and a terminal device, but also to the communication between terminal devices. When used between terminals, the PDSCH / PUSCH can be changed to a PSSCH, the PDCCH / PUCCH can be changed to a PSCCH, the PBCH can be changed to a physical broadcast shared channel (PBSCH), and the PUFCH can be changed to a PSFCH.

[0160] The embodiment of the present application dynamically adjusts the signal parameters of the transmitting end by designing a measurement-feedback-adjustment interaction mechanism between the transmitting end and the receiving end. This solves the problem that the receiver cannot decode correctly in extreme situations when the equivalent time-frequency domain overlap coefficient is too large due to the waveform coding and multipath channel of the transmitting end. This mechanism can also artificially control the decoding complexity of the receiver side through the cooperation of the transmitting and receiving ends, providing another realization path for the power control of the terminal.

[0161] It should be noted that in the information transmission method according to the embodiment of the present application, the execution body may be an information transmission device or a control module for executing the information transmission method in the information transmission device. In the embodiment of the present application, the information transmission device according to the embodiment of the present application is described by taking the information transmission device executing the information transmission method as an example.

[0162] Referring to FIG. 14, an embodiment of the present application provides an information transmitting device 140, which includes: a first transmitting module 141 for performing OVXDM or FTN waveform encoding on data, and generating and transmitting encoded information, the encoded information being generated and / or transmitted based on signal parameters; a first receiving module 142 for receiving feedback information transmitted from a receiving end of the encoded information; and an adjustment module 143 for adjusting the signal parameters based on the feedback information.

[0163] Optionally, the signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K1 defined in OVXDM and K defined in OVXDM or K2 defined in cascaded OVXDM; A symbol modulation order corresponding to K or K2; The frequency domain overlapping factor ζ, N defined in OVXDM and the symbol modulation order corresponding to N, a code rate at which the encoded information is transmitted; and and a parameter of the filter.

[0164] Optionally, the information transmitting device 140: The second transmitting module further includes a first information transmitting module for transmitting the first information including the signal parameter or an indication of the signal parameter to the receiving end.

[0165] Optionally, when the communication device is a network side device, the first information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; transmitted by one of a broadcast message and as indicated by a DCI; Optionally, if the communication device is a terminal, the first information is: be indicated by the PSCCH; Indicated in the PSSCH; or as indicated by a broadcast message.

[0166] Optionally, the second sending module is used for sending a correspondence table between signal parameters and index values ​​via a broadcast message, and for sending an index value of the signal parameter corresponding to the encoded information via a Dedicated-RRC message or DCI.

[0167] Optionally, the feedback information is feedback information for feeding back whether the analysis of the second information or the encoded information is successful; The second information is a first type of second information including at least one of a bit error rate and a channel measurement parameter, the parameter affecting the equivalent ISI and / or the equivalent ICI in the channel; and a second type of second information comprising the recommended signal parameter or an indication of the recommended signal parameter.

[0168] Optionally, when the communication device is a network side device, the second information is PUSCH and PUCCH and and PUFCH; When the communication device is a terminal, the second information is PSSCH and PSCCH, and PSFCH.

[0169] Optionally, the channel measurement parameters include at least one of a signal to interference and noise ratio, a number of multipaths, a residual frequency offset, a Doppler shift, and a relative velocity.

[0170] Optionally, the indication information of the recommended signal parameter is an index value of the signal parameter, and the adjustment module is used for searching a correspondence table of signal parameters and index values ​​based on the received index value of the recommended signal parameter, determining the signal parameter corresponding to the received index value, and adjusting the current signal parameter based on the signal parameter corresponding to the received index value.

[0171] Optionally, the correspondence table between the signal parameters and the index values ​​is stipulated by a protocol or configured by the communication device.

[0172] Optionally, the signal parameter indication information is indication information for instructing an increase or decrease of a signal parameter, and the adjustment module is used to increase or decrease a current signal parameter according to a preset step based on the recommended signal parameter indication information.

[0173] Alternatively, the feedback information is feedback information for feeding back whether the analysis of the encoded information was successful, and the feedback information includes a NACK message indicating that the analysis of the encoded information was not successful, and the adjustment module is used to adjust signal parameters when the proportion or number of NACK messages within a predetermined time period or within a predetermined number of subframes or slots is greater than a predetermined threshold.

[0174] Optionally, the information transmitting device 140: The signal processing device further includes a third sending module for sending third information, the third information including the adjusted signal parameters or indication information of the adjusted signal parameters, to the receiving end.

[0175] Optionally, when the communication device is a network side device, the third information is Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; Transmitted by one of a broadcast message and a DCI message; When the communication device is a terminal, the third information is be indicated by the PSCCH; Indicated in the PSSCH; or as indicated by a broadcast message.

[0176] Optionally, the information transmitting device further includes a fourth transmitting module for transmitting a pilot signal, which includes at least one of a synchronization signal, a channel state information reference signal, or a preset reference signal.

[0177] The information transmitting device according to the embodiment of the present application can realize each process realized by the method embodiments of Figures 4 to 7 and achieve the same technical effects, and will not be described further here in order to avoid repetition of description.

[0178] It should be noted that in the information receiving method according to the embodiment of the present application, the execution body can be an information receiving device or a control module for executing the information receiving method in the information receiving device. In the embodiment of the present application, the information receiving device according to the embodiment of the present application is described by taking the information receiving device executing the information receiving method as an example.

[0179] Referring to FIG. 15, an embodiment of the present application provides an information receiving device 150, which includes: A first receiving module 151 for receiving coded information sent from a transmitting end, the coded information being generated by the transmitting end performing OVXDM or FTN waveform coding on data, the coded information being generated and / or sent based on signal parameters; a first determination module 152 for decoding the encoded information and determining feedback information; The transmitting end includes a first transmitting module 153 for transmitting the feedback information for the transmitting end to adjust signal parameters.

[0180] Optionally, the signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K1 defined in OVXDM and K defined in OVXDM or K2 defined in cascaded OVXDM; A symbol modulation order corresponding to K or K2; The frequency domain overlapping factor ζ, N defined in OVXDM and the symbol modulation order corresponding to N, a code rate at which the encoded information is transmitted; and and a parameter of the filter.

[0181] Optionally, the feedback information is feedback information for feeding back whether the analysis of the second information or the encoded information is successful; The second information is a first type of second information including at least one of a bit error rate and a channel measurement parameter, the parameter affecting the equivalent ISI and / or the equivalent ICI in the channel; and a second type of second information comprising the recommended signal parameter or an indication of the recommended signal parameter.

[0182] Optionally, when the communication device is a terminal in an uplink and downlink, the second information is: PUSCH and PUCCH and and PUFCH, When the communication device is a terminal in a side link, the second information is PSSCH and PSCCH, The PSFCH is transmitted by at least one of the following methods:

[0183] Optionally, the channel measurement parameters include at least one of a signal to interference and noise ratio, a number of multipaths, a residual frequency offset, a Doppler shift, and a relative velocity.

[0184] Optionally, the information receiving device 150: A second receiving module for receiving a pilot signal sent from the transmitting end, the pilot signal including at least one of a synchronization signal, a channel state information reference signal, or a preset reference signal; and a measurement module for measuring a channel based on the pilot signal and obtaining the channel measurement parameters.

[0185] Optionally, when the second information is a second type of second information, the information receiving device 150: a first acquisition module for acquiring reference information including at least one of a channel measurement parameter, a bit error rate, and a capability of the communication device itself; and a second determination module for determining recommended signal parameters based on the reference information.

[0186] Optionally, the indication of the recommended signal parameter is an index value of the signal parameter or an indication for increasing or decreasing the signal parameter.

[0187] Optionally, the information receiving device 150: a third receiving module for receiving first information sent from the transmitting end, the first information including a signal parameter corresponding to the encoded information or an indication of the signal parameter; and the first decision module for decoding the encoded information based on signal parameters corresponding to the encoded information indicated by the first information.

[0188] Optionally, when the communication device is a terminal in an uplink and downlink, the first information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; Received by one of a broadcast message and a DCI; Optionally, when the communication device is a terminal in a side link, the first information is: be indicated by the PSCCH; Indicated in the PSSCH; or is indicated by a broadcast message.

[0189] Optionally, the third receiving module is used for receiving a correspondence table of signal parameters and index values ​​transmitted from the transmitting end by a broadcast message, and receiving an index value of a signal parameter corresponding to the coded information transmitted from the transmitting end by a Dedicated-RRC message or DCI.

[0190] Optionally, the information receiving device 150: The signal processing device further includes a fourth receiving module for receiving third information sent from the transmitting end, the third information including the adjusted signal parameter or the indication information of the adjusted signal parameter.

[0191] Optionally, when the communication device is a terminal in an uplink and downlink, the third information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; Received by one of a broadcast message and a DCI message; When the communication device is a terminal in a side link, the third information is be indicated by the PSCCH; Indicated in the PSSCH; or is indicated by a broadcast message.

[0192] The information receiving device in the embodiment of the present application may be a device, or may be a component, integrated circuit, or chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a deposit payment machine or a self-service machine, etc., and the embodiment of the present application is not specifically limited.

[0193] The information receiving device in the embodiment of the present application may be a device having an operating system, which may be an Android operating system, an ios operating system, or other possible operating systems, and the embodiment of the present application is not specifically limited.

[0194] Referring to FIG. 16, an embodiment of the present application further provides an information receiving method for use in a communication device, comprising: receiving coded information transmitted from a transmitting end, the coded information being generated by the transmitting end performing OVXDM or FTN waveform coding on data, the coded information being generated and / or transmitted based on signal parameters; receiving 162 first information transmitted from a transmitting end, the first information including signal parameters corresponding to the coded information or an indication of the signal parameters; and decoding 163 the encoded information based on signal parameters corresponding to the encoded information indicated by the first information.

[0195] In an embodiment of the present application, the transmitting end of the encoded information indicates signal parameters corresponding to the encoded information to the receiving end, and the receiving end determines a decoding algorithm according to the signal parameters, thereby controlling the decoding complexity of the receiving end and ensuring that the decoding is performed correctly and efficiently.

[0196] Optionally, the signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K1 defined in OVXDM and K defined in OVXDM or K2 defined in cascaded OVXDM; A symbol modulation order corresponding to K or K2; The frequency domain overlapping factor ζ, N defined in OVXDM and the symbol modulation order corresponding to N, a code rate at which the encoded information is transmitted; and and a parameter of the filter.

[0197] Optionally, when the communication device is a terminal in an uplink and downlink, the first information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; Received by one of a broadcast message and a DCI; When the communication device is a terminal in a side link, the first information is be indicated by the PSCCH; Indicated in the PSSCH; or is indicated by a broadcast message.

[0198] Further optionally, receiving the first information transmitted from the transmitting end includes: receiving a correspondence table between signal parameters and index values ​​transmitted from the transmitting end by a broadcast message; receiving an index value of a signal parameter corresponding to the coded information transmitted from the transmitting end by a Dedicated-RRC message or a DCI.

[0199] It should be noted that in the information receiving method according to the embodiment of the present application, the execution body can be an information receiving device or a control module for executing the information receiving method in the information receiving device. In the embodiment of the present application, the information receiving device according to the embodiment of the present application is described by taking the information receiving device executing the information receiving method as an example.

[0200] Referring to FIG. 17, an embodiment of the present application further provides an information receiving device 170, A first receiving module 171 for receiving coded information sent from a transmitting end, the coded information being generated by the transmitting end performing OVXDM or FTN waveform coding on data, the coded information being generated and / or sent based on signal parameters; a second receiving module 172 for receiving first information transmitted from a transmitting end, the first information including signal parameters corresponding to the coded information or indication information of the signal parameters; and a determination module 173 for decoding the encoded information and determining feedback information based on signal parameters corresponding to the encoded information indicated by the first information.

[0201] In an embodiment of the present application, the transmitting end of the encoded information indicates signal parameters corresponding to the encoded information to the receiving end, and the receiving end determines a decoding algorithm according to the signal parameters, thereby controlling the decoding complexity of the receiving end and ensuring that the decoding is performed correctly and efficiently.

[0202] Optionally, the signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K1 defined in OVXDM and K defined in OVXDM or K2 defined in cascaded OVXDM; A symbol modulation order corresponding to K or K2; The frequency domain overlapping factor ζ, N defined in OVXDM and the symbol modulation order corresponding to N, a code rate at which the encoded information is transmitted; and and a parameter of the filter.

[0203] Optionally, when the communication device is a terminal in an uplink and downlink, the first information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; Received by one of a broadcast message and a DCI; When the communication device is a terminal in a side link, the first information is be indicated by the PSCCH; Indicated in the PSSCH; or is indicated by a broadcast message.

[0204] Further optionally, the receiving module is used for receiving a correspondence table between signal parameters and index values ​​transmitted from the transmitting end by a broadcast message, and receiving an index value of a signal parameter corresponding to the coded information transmitted from the transmitting end by a Dedicated-RRC message or DCI.

[0205] Referring to FIG. 18, an embodiment of the present application further provides an information transmission method for use in a communication device, comprising: A step 181 of transmitting first information; and performing OVXDM or FTN waveform encoding on the data to generate and transmit encoded information 182, the encoded information being generated and / or transmitted based on signal parameters, the first information including the signal parameters or an indication of the signal parameters.

[0206] In an embodiment of the present application, the transmitting end of the encoded information indicates signal parameters corresponding to the encoded information to the receiving end, so that the receiving end determines a decoding algorithm according to the signal parameters, thereby controlling the decoding complexity of the receiving end and ensuring that the decoding is performed correctly and efficiently.

[0207] Optionally, the signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K1 defined in OVXDM and K defined in OVXDM or K2 defined in cascaded OVXDM; A symbol modulation order corresponding to K or K2; The frequency domain overlapping factor ζ, N defined in OVXDM and the symbol modulation order corresponding to N, a code rate at which the encoded information is transmitted; and and a parameter of the filter.

[0208] Optionally, when the communication device is a network side device, the first information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; transmitted by one of a broadcast message and as indicated by a DCI; When the communication device is a terminal, the first information is be indicated by the PSCCH; Indicated in the PSSCH; or as indicated by a broadcast message.

[0209] Further optionally, transmitting the first information comprises: transmitting a correspondence table between signal parameters and index values ​​by a broadcast message; and transmitting an index value of a signal parameter corresponding to the coded information via a Dedicated-RRC message or DCI.

[0210] It should be noted that in the information transmission method according to the embodiment of the present application, the execution body may be an information transmission device or a control module for executing the information transmission method in the information transmission device. In the embodiment of the present application, the information transmission device according to the embodiment of the present application is described by taking the information transmission device executing the information transmission method as an example.

[0211] Referring to FIG. 19, an embodiment of the present application further provides an information sending device 190, a first transmitting module 191 for transmitting first information; and a second transmitting module 192 for performing OVXDM or FTN waveform encoding on the data and generating and transmitting encoded information, the encoded information being generated and / or transmitted based on signal parameters, and the first information including the signal parameters or indications of the signal parameters.

[0212] In an embodiment of the present application, the transmitting end of the encoded information indicates signal parameters corresponding to the encoded information to the receiving end, so that the receiving end determines a decoding algorithm according to the signal parameters, thereby controlling the decoding complexity of the receiving end and ensuring that the decoding is performed correctly and efficiently.

[0213] Optionally, the signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K1 defined in OVXDM and K defined in OVXDM or K2 defined in cascaded OVXDM; A symbol modulation order corresponding to K or K2; The frequency domain overlapping factor ζ, N defined in OVXDM and the symbol modulation order corresponding to N, a code rate at which the encoded information is transmitted; and and a parameter of the filter.

[0214] Optionally, when the communication device is a network side device, the first information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; transmitted by one of a broadcast message and as indicated by a DCI; When the communication device is a terminal, the first information is be indicated by the PSCCH; Indicated in the PSSCH; or as indicated by a broadcast message.

[0215] Further optionally, the first sending module 191 is used for sending a correspondence table between signal parameters and index values ​​by a broadcast message, and for sending an index value of the signal parameter corresponding to the encoded information by a Dedicated-RRC message or DCI.

[0216] As shown in Fig. 20, an embodiment of the present application further provides a communication device 200, including a processor 201, a memory 202, and a program or instruction stored in the memory 202 and operable on the processor 201, for example, when the program or instruction is executed by the processor 201, each process of the embodiment of the information transmitting method can be realized and the same technical effect can be achieved. Or, when the program or instruction is executed by the processor 201, each process of the embodiment of the information receiving method can be realized and the same technical effect can be achieved. In order to avoid repetition, no further description will be given here.

[0217] 21 is a schematic diagram of a hardware structure for implementing a terminal of an embodiment of the present application. The terminal 210 includes, but is not limited to, components such as a radio frequency unit 211, a network module 212, an audio output unit 213, an input unit 214, a sensor 215, a display unit 216, a user input unit 217, an interface unit 218, a memory 219, and a processor 2110.

[0218] As can be understood by those skilled in the art, the terminal 210 may further include a power source (e.g., a battery) for powering each component, and the power source may be logically connected to the processor 2110 by a power management system, so that the power management system can realize functions such as charge / discharge management and power consumption management. The terminal structure shown in FIG. 21 does not constitute a limitation on the terminal, and the terminal may include more or less components than the number of components shown, or a combination of some components, or a different arrangement of components, and will not be further described here.

[0219] It should be understood that in the embodiment of the present application, the input unit 214 may include a graphics processor (Graphics Processing Unit, GPU) 2141 and a microphone 2142, and the graphics processor 2141 processes image data of still or video images obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 216 may include a display panel 2161, and the display panel 2161 may be arranged in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 217 includes a touch panel 2171 and other input devices 2172. The touch panel 2171 is also called a touch screen. The touch panel 2171 may include two parts: a touch detection device and a touch controller. The other input devices 2172 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, and a control lever, which will not be described further herein.

[0220] In the embodiment of the present application, the radio frequency unit 211 receives downlink data from the network side device, and then causes the processor 2110 to process the data, and transmits uplink data to the network side device. In general, the radio frequency unit 211 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0221] The memory 219 may be used to store software programs or instructions and various data. The memory 219 may mainly include a program or instruction storage area and a data storage area, where the program or instruction storage area can store an operating system, an application program or instruction required for at least one function (e.g., a sound playback function, an image playback function, etc.), etc. The memory 219 may include a high-speed random access memory or a non-volatile memory, where the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, the memory 219 may be at least one magnetic disk memory device, a flash memory device, or other non-volatile solid-state memory device.

[0222] The processor 2110 may include one or more processing units. Optionally, the processor 2110 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, and application programs or instructions, and the modem processor mainly processes wireless communication, such as a baseband processor. As can be understood, the modem processor does not have to be integrated into the processor 2110.

[0223] Here, if the terminal 210 is a transmitting end, The radio frequency unit 211 is used to perform OVXDM or FTN waveform coding on the data, and generate and transmit coded information, where the coded information is generated and / or transmitted based on the signal parameters; A processor 2110 is used to adjust the signal parameters based on the feedback information.

[0224] Optionally, the signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K1 defined in OVXDM and K defined in OVXDM or K2 defined in cascaded OVXDM; A symbol modulation order corresponding to K or K2; The frequency domain overlapping factor ζ, N defined in OVXDM and the symbol modulation order corresponding to N, a code rate at which the encoded information is transmitted; and and a parameter of the filter.

[0225] Optionally, the radio frequency unit 211 is also used for transmitting first information including the signal parameter or an indication of the signal parameter to the receiving end.

[0226] Optionally, if the communication device is a terminal, the first information is: be indicated by the PSCCH; Indicated in the PSSCH; or as indicated by a broadcast message.

[0227] Optionally, the radio frequency unit 211 is used to send a correspondence table between signal parameters and index values ​​through a broadcast message, and to send the index value of the signal parameter corresponding to the coded information through a Dedicated-RRC message or DCI.

[0228] Optionally, the feedback information is feedback information for feeding back whether the analysis of the second information or the encoded information is successful; The second information is a first type of second information including at least one of a bit error rate and a channel measurement parameter, the parameter affecting the equivalent ISI and / or the equivalent ICI in the channel; and a second type of second information comprising the recommended signal parameter or an indication of the recommended signal parameter.

[0229] Optionally, when the communication device is a network side device, the second information is PUSCH and PUCCH and and PUFCH; When the communication device is a terminal, the second information is PSSCH and PSCCH, and PSFCH.

[0230] Optionally, the channel measurement parameters include at least one of a signal to interference and noise ratio, a number of multipaths, a residual frequency offset, a Doppler shift, and a relative velocity.

[0231] Optionally, the indication information of the recommended signal parameter is an index value of the signal parameter, and the processor 2110 is used to search a correspondence table of signal parameters and index values ​​based on the received index value of the recommended signal parameter, determine the signal parameter corresponding to the received index value, and adjust the current signal parameter based on the signal parameter corresponding to the received index value.

[0232] Optionally, the correspondence table between the signal parameters and the index values ​​is stipulated by a protocol or configured by the communication device.

[0233] Optionally, the signal parameter indication information is indication information for instructing an increase or decrease of a signal parameter, and the processor 2110 is used to increase or decrease the current signal parameter according to a preset step based on the recommended signal parameter indication information.

[0234] Alternatively, the feedback information is feedback information for feeding back whether the encoded information has been successfully analyzed, and the feedback information includes a NACK message indicating that the encoded information has not been successfully analyzed, and the processor 2110 is used to adjust signal parameters when the proportion or number of NACK messages within a predetermined time period or within a predetermined number of subframes or slots is greater than a predetermined threshold.

[0235] Optionally, the radio frequency unit 211 is also used for transmitting third information, including the adjusted signal parameters or an indication of the adjusted signal parameters, to the receiving end.

[0236] Optionally, when the communication device is a network side device, the third information is Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; Transmitted by one of a broadcast message and a DCI message; When the communication device is a terminal, the third information is be indicated by the PSCCH; Indicated in the PSSCH; or as indicated by a broadcast message.

[0237] Optionally, the radio frequency unit 211 is also used to transmit pilot signals, including at least one of a synchronization signal, a channel state information reference signal, or a pre-configured reference signal.

[0238] Or, if the terminal 210 is a receiving end, The radio frequency unit 211 is used for receiving coded information transmitted from a transmitting end, the coded information being generated by the transmitting end performing OVXDM or FTN waveform coding on data, and the coded information being generated and / or transmitted according to signal parameters; The processor 2110 is adapted to decode the coded information and determine feedback information; The radio frequency unit 211 is used for transmitting the feedback information to the transmitting end for the transmitting end to adjust signal parameters.

[0239] Optionally, the signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K1 defined in OVXDM and K defined in OVXDM or K2 defined in cascaded OVXDM; A symbol modulation order corresponding to K or K2; The frequency domain overlapping factor ζ, N defined in OVXDM and the symbol modulation order corresponding to N, a code rate at which the encoded information is transmitted; and and a parameter of the filter.

[0240] Optionally, the feedback information is feedback information for feeding back whether the analysis of the second information or the encoded information is successful; The second information is: a first type of second information including at least one of a bit error rate and a channel measurement parameter, the parameter affecting the equivalent ISI and / or the equivalent ICI in the channel; and a second type of second information comprising the recommended signal parameter or an indication of the recommended signal parameter.

[0241] Optionally, when the communication device is a terminal in an uplink and downlink, the second information is: PUSCH and PUCCH and and PUFCH, When the communication device is a terminal in a side link, the second information is PSSCH and PSCCH, The PSFCH is transmitted by at least one of the following methods:

[0242] Optionally, the channel measurement parameters include at least one of a signal to interference and noise ratio, a number of multipaths, a residual frequency offset, a Doppler shift, and a relative velocity.

[0243] Optionally, the radio frequency unit 211 is also used to receive a pilot signal sent from the transmitting end, the pilot signal including at least one of a synchronization signal, a channel state information reference signal, or a pre-defined reference signal; The processor 2110 is also used for measuring a channel based on the pilot signal and obtaining the channel measurement parameters.

[0244] Optionally, when the second information is a second type of second information, the processor 2110 is also used for obtaining reference information including at least one of channel measurement parameters, a bit error rate, and the communication device's own capabilities, and determining recommended signal parameters based on the reference information.

[0245] Optionally, the indication of the recommended signal parameter is an index value of the signal parameter or an indication for increasing or decreasing the signal parameter.

[0246] Optionally, the radio frequency unit 211 is also used for receiving first information transmitted from the transmitting end, the first information including signal parameters corresponding to the coded information or indication information of the signal parameters; The processor 2110 is also used for decoding the encoded information based on signal parameters corresponding to the encoded information indicated by the first information.

[0247] Optionally, when the communication device is a terminal in an uplink and downlink, the first information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; Received by one of a broadcast message and a DCI; Optionally, when the communication device is a terminal in a side link, the first information is: be indicated by the PSCCH; Indicated in the PSSCH; or is indicated by a broadcast message.

[0248] Optionally, the radio frequency unit 211 is also used for receiving a correspondence table between signal parameters and index values ​​transmitted from the transmitting end by a broadcast message, and for receiving index values ​​of signal parameters corresponding to the coded information transmitted from the transmitting end by a Dedicated-RRC message or DCI.

[0249] Optionally, the radio frequency unit 211 is also used for receiving third information sent from the transmitting end, the third information including the adjusted signal parameters or indication information of the adjusted signal parameters.

[0250] Optionally, when the communication device is a terminal in an uplink and downlink, the third information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; Received by one of a broadcast message and a DCI message; When the communication device is a terminal in a side link, the third information is be indicated by the PSCCH; Indicated in the PSSCH; or is indicated by a broadcast message.

[0251] Here, if the terminal 210 is a receiving end, The radio frequency unit 211 is used for receiving first information and coded information transmitted from a transmitting end, the coded information being generated by the transmitting end performing OVXDM or FTN waveform coding on data, the coded information being generated and / or transmitted according to signal parameters, and the first information includes signal parameters corresponding to the coded information or indication information of the signal parameters; The processor 2110 is adapted to decode the encoded information based on signal parameters corresponding to the encoded information indicated by the first information.

[0252] Optionally, the signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K1 defined in OVXDM and K defined in OVXDM or K2 defined in cascaded OVXDM; A symbol modulation order corresponding to K or K2; The frequency domain overlapping factor ζ, N defined in OVXDM and the symbol modulation order corresponding to N, a code rate at which the encoded information is transmitted; and and a parameter of the filter.

[0253] Optionally, when the communication device is a terminal in an uplink and downlink, the first information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; Received by one of a broadcast message and a DCI; When the communication device is a terminal in a side link, the first information is be indicated by the PSCCH; Indicated in the PSSCH; or is indicated by a broadcast message.

[0254] Here, if the terminal 210 is a transmitting end, The radio frequency unit 211 is used for transmitting first information, The processor 2110 is used to perform OVXDM or FTN waveform encoding on the data to generate encoded information; The radio frequency unit 211 is also used to transmit the coded information; wherein the coded information is generated and / or transmitted based on a signal parameter, and the first information comprises the signal parameter or an indication of the signal parameter.

[0255] Optionally, the signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K1 defined in OVXDM and K defined in OVXDM or K2 defined in cascaded OVXDM; A symbol modulation order corresponding to K or K2; The frequency domain overlapping factor ζ, N defined in OVXDM and the symbol modulation order corresponding to N, a code rate at which the encoded information is transmitted; and and a parameter of the filter.

[0256] Optionally, when the communication device is a network side device, the first information is: Indicated by PDCCH; Indicated by a Dedicated-RRC message in the PDSCH; being indicated by a broadcast message; Indicated by a broadcast message and a Dedicated-RRC message; transmitted by one of a broadcast message and as indicated by a DCI; When the communication device is a terminal, the first information is be indicated by the PSCCH; Indicated in the PSSCH; or as indicated by a broadcast message.

[0257] An embodiment of the present application further provides a network side device. As shown in Fig. 22, the network side device 220 includes an antenna 221, a radio frequency device 222, and a baseband device 223. The antenna 221 and the radio frequency device 222 are connected. In the uplink direction, the radio frequency device 222 receives information through the antenna 221, and transmits the received information to the baseband device 223 for processing. In the downlink direction, the baseband device 223 processes the information to be transmitted and transmits it to the radio frequency device 222, and the radio frequency device 222 transmits the received information through the antenna 221 after processing it.

[0258] The above frequency band processing device may be located in a baseband device 223, and the methods performed by the network side equipment in the above embodiments may be implemented in the baseband device 223, which includes a processor 224 and a memory 225.

[0259] The baseband device 223 may, for example, include at least one baseband board, on which multiple chips are installed, as shown in FIG. 22, where one chip is, for example, a processor 224, connected to a memory 225, and calls the program in the memory 225 to perform the network equipment operations shown in the above method embodiments.

[0260] The baseband unit 223 may further include a network interface 226, which is used to exchange information with the radio frequency unit 222, and which is, for example, a common public radio interface (abbreviated as CPRI).

[0261] Specifically, the network side equipment of the embodiments of the present application further includes instructions or programs stored in memory 225 and capable of running on processor 224, and processor 224 can call the instructions or programs in memory 225 to execute the methods performed by each module shown in FIG. 14 or FIG. 18, and achieve the same technical effects, which will not be described further here in order to avoid repetition of description.

[0262] The embodiments of the present application further provide a readable storage medium, on which a program or instruction is stored, which, when executed by a processor, can realize each process of the embodiments of the information transmission method described above, and achieve the same technical effect. In order to avoid repetition, no further description will be given here.

[0263] The embodiments of the present application further provide a readable storage medium, on which a program or instruction is stored, which, when executed by a processor, can realize each process of the embodiments of the information receiving method described above, and achieve the same technical effect. In order to avoid repetition, no further description will be given here.

[0264] Here, the processor is the processor in the communication device in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

[0265] The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor runs a program or instruction of the network side device, and is used to realize each process of the embodiment of the information transmission method described above, and can achieve the same technical effect. In order to avoid repetition, no further description will be given here.

[0266] The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction of a network side device, so as to realize each process of the embodiment of the information receiving method described above, and achieve the same technical effect. In order to avoid repetition, no further description will be given here.

[0267] It should be understood that the chips referred to in the embodiments of the present application may be referred to as system level chips, system chips, chip systems, or systems on chips.

[0268] As can be appreciated, the embodiments described in this disclosure may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For a hardware implementation, the modules, units, sub-modules, sub-units, etc. may be implemented in one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processing (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field-Programmable Gate Arrays (FPGAs), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units, or combinations thereof for performing the functions of the present application.

[0269] It should be explained that in this specification, the terms "comprise", "include", or any other variants thereof are intended to cover the non-exclusive "comprise", whereby a process, method, article, or apparatus that includes a set of elements includes not only those elements, but also other elements not expressly listed or inherent to such process, method, article, or apparatus. In the absence of further limitations, an element limited by the phrase "comprises a" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes this element. It should be pointed out that the scope of the method and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may include performing functions in an essentially simultaneous manner or in reverse order based on the functions involved, for example, the described method can be performed in a different order than described, and various steps can be added, omitted, or combined. Also, features described with reference to some examples can be combined in other examples.

[0270] From the above description of the embodiments, it is clear to those skilled in the art that the methods of the above embodiments can be realized in the form of software and a necessary general-purpose hardware platform. Of course, they can also be realized in hardware, but in many cases the former is a more preferred embodiment. Based on this understanding, the technical solution of the present application may be substantially or in part embodied in the form of a software product. The computer software product is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes some instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0271] The above describes the embodiments of the present application with reference to the drawings, but the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not limiting. Those skilled in the art can take many forms suggested by the present application without departing from the spirit and scope of the claims of the present application, and all of them belong to the protection scope of the present application.

Claims

1. An information transmission method for use in a communication device, comprising: performing X-domain overlap multiplexing (OVXDM) or faster than Nyquist FTN waveform encoding on the data to generate and transmit encoded information, the encoded information being generated and / or transmitted based on signal parameters; receiving feedback information transmitted from a receiving end of the encoded information; and adjusting the signal parameters based on the feedback information. the feedback information is second information, The second information is second information of a first type including at least one of a bit error rate and a channel measurement parameter, the channel measurement parameter including at least one of a number of multipaths, a residual frequency offset, a Doppler shift, and a relative velocity; and a second type of second information including a recommended signal parameter or an indication of the recommended signal parameter; The signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K 1 as defined by OVXDM; K as defined in OVXDM or K 2 as defined in cascaded OVXDM; a symbol modulation order corresponding to K or K 2 ; The frequency domain overlapping factor ζ, N as defined by OVXDM; a symbol modulation order corresponding to N; a code rate at which the encoded information is transmitted; and and a parameter of a filter; where N is a parameter related to frequency domain overlapping, K is a parameter related to time domain overlapping, OVXDM is serial cascaded overlapped time division multiplexing (OVTDM), the time domain overlapping is divided into two levels, the first level is pure overlapped OVTDM (Pure-OVTDM, P-OVTDM) without mutual shift, the second level is shifted overlapped OVTDM (S-OVTDM), K 1 is a parameter related to the time domain overlapping of the first level, K 2 is a parameter related to the time domain overlapping of the second level, wherein the filter parameters include a roll-off factor α, a filter time domain sampling point number and / or a main lobe width parameter.

2. Before receiving feedback information transmitted from a receiving end of the coded information, the method includes: The information transmission method according to claim 1 , further comprising the step of transmitting to the receiving end first information including the signal parameter or an indication of the signal parameter.

3. The step of transmitting the first information to the receiving end includes: transmitting a correspondence table between signal parameters and index values ​​by a broadcast message; The information transmission method according to claim 2, further comprising the step of: transmitting an index value of a signal parameter corresponding to the coded information by a Dedicated-RRC message or a DCI.

4. The indication of the recommended signal parameter is an index value of the signal parameter, and adjusting the signal parameter based on the feedback information includes: searching a correspondence table of signal parameters and index values ​​based on the received index value of the recommended signal parameter, and determining a signal parameter corresponding to the received index value; and adjusting a current signal parameter based on the signal parameter corresponding to the received index value.

5. The indication of the recommended signal parameter is indication for instructing an increase or decrease of a signal parameter, and the step of adjusting the signal parameter based on the feedback information includes: The information transmission method according to claim 1 , further comprising: increasing or decreasing a current signal parameter according to a preset step based on the indication of the recommended signal parameter.

6. The feedback information is further used to feed back whether the analysis of the coded information is successful, the feedback information including a non-acknowledgement NACK message indicating that the analysis of the coded information is not successful, and the step of adjusting the signal parameters based on the feedback information includes:

2. The method of claim 1, further comprising the step of adjusting a signal parameter if the proportion or number of NACK messages within a predetermined time period or within a predetermined number of subframes or slots is greater than a predetermined threshold.

7. After adjusting the signal parameters based on the feedback information, the method further comprises: The information transmission method according to claim 1 , further comprising the step of: transmitting third information to the receiving end, the third information including the adjusted signal parameter or an indication of the adjusted signal parameter.

8. Before receiving feedback information transmitted from a receiving end of the coded information, the method includes: The information transmission method according to claim 1 , further comprising the step of transmitting a pilot signal, the pilot signal including at least one of a synchronization signal, a channel state information reference signal or a pre-defined reference signal.

9. An information receiving method for use in a communication device, comprising: receiving coded information transmitted from a transmitting end, the coded information being generated by the transmitting end performing OVXDM or FTN waveform coding on data, the coded information being generated and / or transmitted based on signal parameters; decoding the encoded information and determining feedback information; and transmitting the feedback information to the transmitting end for adjusting the signal parameters; the feedback information is second information, The second information is second information of a first type including at least one of a bit error rate and a channel measurement parameter, the channel measurement parameter including at least one of a number of multipaths, a residual frequency offset, a Doppler shift, and a relative velocity; and a second type of second information including a recommended signal parameter or an indication of the recommended signal parameter; The signal parameters are: A time domain overlap factor τ; the symbol modulation order corresponding to τ; K 1 as defined by OVXDM; K as defined in OVXDM or K 2 as defined in cascaded OVXDM; a symbol modulation order corresponding to K or K 2 ; The frequency domain overlapping factor ζ, N as defined by OVXDM; a symbol modulation order corresponding to N; a code rate at which the encoded information is transmitted; and and a parameter of a filter; where N is a parameter related to frequency domain overlapping, K is a parameter related to time domain overlapping, OVXDM is serial cascaded overlapped time division multiplexing (OVTDM), the time domain overlapping is divided into two levels, the first level is pure overlapped OVTDM (Pure-OVTDM, P-OVTDM) without mutual shift, the second level is shifted overlapped OVTDM (S-OVTDM), K 1 is a parameter related to the time domain overlapping of the first level, K 2 is a parameter related to the time domain overlapping of the second level, wherein the filter parameters include a roll-off factor α, a filter time domain sampling point number and / or a main lobe width parameter.

10. Before transmitting the feedback information to the transmitting end, the method includes: receiving a pilot signal, the pilot signal including at least one of a synchronization signal, a channel state information reference signal, or a preset reference signal, transmitted from the transmitting end; 10. The method of claim 9, further comprising the step of: measuring a channel based on said pilot signal to obtain said channel measurement parameters.

11. The step of decoding the encoded information comprises: receiving first information transmitted from the transmitting end, the first information including signal parameters corresponding to the encoded information or indication information of the signal parameters; 10. The method of claim 9, further comprising the step of: decoding the encoded information based on signal parameters corresponding to the encoded information indicated by the first information.

12. After sending the feedback information to the transmitting end, the method includes: The information receiving method according to claim 9 , further comprising: receiving third information sent from the transmitting end, the third information including the adjusted signal parameter or an indication of the adjusted signal parameter.

13. A communications device comprising a processor, a memory, and a program or instructions stored in the memory and executable on the processor, the program or instructions being a program or instructions for causing the processor to realize each of the steps of an information transmission method described in any one of claims 1 to 8, or a program or instructions for causing the processor to realize each of the steps of an information reception method described in any one of claims 9 to 12.

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