CN108632190A

CN108632190A - Information sending, receiving method and device, terminal, base station

Info

Publication number: CN108632190A
Application number: CN201710184619.6A
Authority: CN
Inventors: 韩祥辉; 夏树强; 梁春丽; 张雯; 石靖; 任敏
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-03-24
Filing date: 2017-03-24
Publication date: 2018-10-09
Anticipated expiration: 2037-03-24
Also published as: CN108632190B

Abstract

Present disclose provides a kind of information sending, receiving method and device, terminal, base stations；Wherein, method for sending information includes：Reference signal RS information and data information are sent on N number of symbol in the time domain；Wherein, reference signal RS information and data information are carried simultaneously at least one of N number of symbol predetermined symbol, N is positive integer.By the disclosure, RS expenses are larger when solving the problems, such as to send ascending control information in the related technology, and then have reached the effect for reducing RS expenses, and ensure that good peak-to-average force ratio.

Description

Information sending and receiving method and device, terminal and base station

Technical Field

The present disclosure relates to the field of communications, and in particular, to an information sending and receiving method and apparatus, a terminal, and a base station.

Background

With the emergence of emerging services such as industrial automation, internet of vehicles, remote control, smart grid, virtual reality and the like, higher requirements are put forward on the time delay of a wireless communication system borne by the intelligent grid. Such as 1ms or even 0.5ms of air interface delay. Therefore, the third Generation Partnership Project (3rd Generation Partnership Project, 3GPP) has gradually developed research on low latency related issues based on Long Term Evolution (LTE)/Long Term Evolution-Advanced (LTE-a) system and a new Generation, i.e., fifth Generation mobile communication system (5G), respectively.

In the LTE/LTE-a system, a Transmission Time Interval (TTI) is a basic unit of downlink and uplink Transmission scheduling in the Time domain. As in a Frequency Division Duplex (FDD) system, the time dimension is divided into radio frames of length 10ms, where each radio frame comprises 10 subframes and the TTI length is equal to the subframe length 1 ms. Each subframe comprises two slots, each slot having a length of 0.5 ms. Each downlink slot contains 7 Orthogonal Frequency Division Multiplexing (OFDM for short) symbols (6 OFDM symbols under the extended cyclic prefix); each uplink slot contains 7 Single Carrier-Frequency Division Multiplexing (SC-FDMA) symbols (6 SC-FDMA symbols under the extended cyclic prefix).

In 5G systems, more flexible frame structure support is needed to support new demand changes such as higher rates, massive chaining, ultra-low latency, higher reliability, hundreds of times of energy efficiency improvement, etc. A transmission time unit (slot) with a shorter time domain length relative to LTE/LTE-a is preliminarily defined in the current standard. In order to perform a Hybrid Automatic Repeat reQuest (HARQ) more quickly, self-contained feedback needs to be implemented if necessary, and at this time, an uplink control symbol may only have one or two time domain symbols.

However, in order to maintain the single carrier characteristic of the Uplink signal to support better Uplink coverage and power amplifier efficiency, in the prior art, the Uplink Reference Signal (RS) exclusively occupies one time domain Symbol, and when the number of time domain symbols included in the Uplink Control Channel (PUCCH) is small, the RS overhead is too large. The RS overhead would be up to 50% as for the two symbol PUCCH. And the RS overhead in PUCCH Format 3 for transmitting large-load uplink control information in the LTE/LTE-a system is 2/7, while the RS overhead in PUCCH Format 4/5 is only 1/7. Therefore, a method for reducing RS overhead when transmitting heavy-load uplink control information is currently lacking.

In view of the above technical problems, no effective solution has been proposed at present.

Disclosure of Invention

The embodiment of the disclosure provides an information sending and receiving method and device, a terminal and a base station, so as to at least solve the problem that the overhead of an RS is large when uplink control information is sent in the related art.

According to an embodiment of the present disclosure, there is provided an information transmitting method including: sending Reference Signal (RS) information and data information on N symbols in a time domain; at least one preset symbol in the N symbols simultaneously carries reference signal RS information and data information, and N is a positive integer.

Optionally, the predetermined symbol comprises M frequency domain units in the frequency domain, each of which contains N_sc subcarriers. The N_sc subcarriers are divided into K subcarrier groups, the subcarrier index of the specified subcarriers in the frequency domain unit of the N_sc subcarriers is k+s * K, where K is a group index of a subcarrier group where the specific subcarrier is located, s is an index of the specific subcarrier in the subcarrier group where the specific subcarrier is located, K is 0,1, …, K-1,M and K are positive integers.

Optionally, one of the K subcarrier groups specifies a sampling point carrying RS information on the subcarrier group; and carrying data information sample points on other subcarrier groups except the appointed subcarrier group in the K subcarrier groups.

Optionally, the sending the RS information and the data information on N symbols in the time domain includes: performing inverse discrete Fourier transform of an N _ ifft point on at least one preset symbol simultaneously carrying RS information and data information; wherein N_ifft is greater than or equal to M*N_sc; Sending at least one predetermined symbol after discrete Fourier inverse.

Optionally, there is a predetermined rotational phase for samples within a group of subcarriers having the same group index between different ones of the M frequency domain units.

Alternatively, in the case where M is equal to K, in the frequency domain unit with index M among M frequency domain units, the rotational phase of the sample point carried on the subcarrier group with group index K is or , wherein, M is 0, 1., M-1; j is an imaginary unit.

Optionally, in the case that M is greater than K, in the frequency domain unit with index M in M frequency domain units, the phase of the sample point carried on the subcarrier group with group index K is rotated into or ,wherein, M is 0, 1., M-1; j is an imaginary unit.

Optionally, the RS information and data information within M frequency domain units occupy continuous M*N_sc subcarriers in the frequency domain.

Optionally, K is greater than or equal to 2.

Alternatively, N_sc is an integer multiple of 6.

Optionally, the symbols other than at least one predetermined symbol among the N symbols only carry data information, where the data information is preprocessed and mapped onto the continuous subcarriers of the other symbols. The preprocessing includes at least one of the following: encoding, scrambling, constellation modulation, multiplication with a predetermined sequence, discrete Fourier transform DFT of M*N_sc points, and fast Fourier transform FFT.

Optionally, the sampling point of the RS information is a predetermined sampling point of the RS information or a sampling point of the RS information obtained after DFT conversion of the predetermined sampling point of the RS information.

Optionally, M frequency domain units are mapped onto continuous M*N_sc subcarriersThe sample points of RS information are obtained by preprocessing the predetermined RS information samples in the time domain and then passing through the DFT of M*N_sc points.

Optionally, the sampling point of the data information is obtained by performing DFT on the sampling point of the predetermined data information.

Optionally, the samples of data information mapped onto continuous M*N_sc subcarriers within M frequency domain units are obtained by preprocessing the predetermined data information samples in the time domain and then undergoing DFT transformation of M*N_sc points.

Optionally, the preprocessing the predetermined RS information samples in the time domain includes: sampling point of predetermined RS informationOrThe phase of (1) is rotated; placing the sampling points of the preset RS information after phase rotation into a sampling point group with the index of k1 of a sampling point group in a time domain unit with the index of m 1; wherein, the time domain comprises M time domain units, and each time domain unit contains N_sc sampling points, and the N_sc sampling points are divided into K sample groups. Among them, the index of the specified samples in the time domain unit is k1+c * K, k1 is the group index of the specified sample group, c is the index of the specified sample group within the specified sample group, k1＝0,1,..,K-1，m1＝0,1，…，M-1.

Optionally, the other groups of samples except the group of samples with index k1 in the time domain unit with index m1 are set to zero, or the samples of the predetermined data information preprocessed in the time domain after being placed in the other groups of samples except the group of samples with index k1 in the time domain unit with index m1 are set to zero.

Optionally, the preprocessing the predetermined data information samples in the time domain includes: aiming at the sampling points of each group of data information of the sampling points of the preset data information, the sampling points of each group of data information are processedOrThe phase of (1) is rotated; correspondingly placing the sampling points of the group of data information after phase rotation into a sampling point group with the index of k1 of the sampling point group in a time domain unit with the index of m 2; wherein, the time domain comprises M time domain units, and each time domain unit contains N_sc sampling points, and the N_sc sampling points are divided into K sample groups. Among them, the index of the specified samples in the time domain unit is k1+c * K, k1 is the group index of the specified sample group, c is the index of the specified sample group within the specified sample group, k2＝0,1,..,K-1，m2＝0,1，…，M-1.

Alternatively, the other groups of samples except the group of samples in which the samples of the phase-rotated data information are placed in the time-domain unit with the index m2 are set to zero, or the samples of the predetermined reference signal information preprocessed in the time domain are placed in the other groups of samples except the group of samples in which the samples of the phase-rotated data information are placed in the time-domain unit with the index m 2.

Optionally, the number of the predetermined reference signal information samples is

Optionally, the number of the predetermined data information samples is

Optionally, in the case of K=2, the predetermined symbol includes two time domain units and two frequency domain units, each of which includes Nsc samples. The first time group within the time domain unit includes samples with index 2P out of N_sc samples, and the second time group within the time domain unit includes samples with index 2P+1 out of N_sc samples; Each frequency domain unit includes Nsc subcarriers, the first frequency domain group within the frequency domain unit includes samples indexed 2r in the N_sc subcarriers, and the second frequency domain group within the frequency domain unit includes samples indexed 2r+1 in the Nsc subcarriers; wherein,

optionally, RS information is transmitted over N symbols in the time domainAnd prior to the data information, the method further comprises one of: will be provided withThe sampling points of the RS information are mapped to the subcarriers in the first frequency domain grouping of the two frequency domain units after the predetermined phase rotation, and the RS information is transmitted to the subcarriers in the first frequency domain grouping of the two frequency domain unitsSample point passing of individual data informationThe DFT of the point is mapped to subcarriers in a second frequency domain grouping of the two frequency domain units after being multiplied by a preset phase; will be provided withThe samples of the RS information are mapped to subcarriers in a second frequency domain packet of the two frequency domain units after being subjected to predetermined phase rotation, andsample point passing of individual data informationThe DFT transform of the points is multiplied by a predetermined phase and mapped to subcarriers in a first frequency-domain grouping of two frequency-domain elements.

Optionally, before transmitting the RS information and the data information on N symbols in the time domain, the method further comprises one of: will be provided withThe sampling points of the RS information are mapped to subcarriers in a first frequency domain group of two frequency domain units after being rotated by a preset phase; will be provided withAnd mapping the sampling points of the RS information to subcarriers in a second frequency domain grouping of the two frequency domain units after predetermined phase rotation.

Optionally, the predetermined phases of the samples in the first frequency-domain grouping mapped in the two frequency-domain units are 1, or-1, respectively, and the predetermined phases of the samples in the second frequency-domain grouping mapped in the two frequency-domain units are 1, -1, or-1, respectively; alternatively, the predetermined phases of the samples in the first frequency-domain grouping mapped in the two frequency-domain units are 1, -1, or-1, 1, respectively, and the predetermined phases of the samples in the second frequency-domain grouping mapped in the two frequency-domain units are 1,1, or-1, respectively.

Optionally, before the RS information and the data information are transmitted on N symbols in the time domain, the method further includes: will be provided withMultiplying the sampling points of the data information by a preset phase on a time domain, mapping the sampling points in a first time packet of each time domain unit, and setting a second time packet of each time domain unit to zero; or, willMultiplying the sampling points of the data information by a preset phase on the time domain, mapping the sampling points in a second time packet of each time domain unit, and setting the first time packet of each time domain unit to be zero; mapping the information in the two time domain units onto the subcarriers in the two frequency domain units after undergoing a 2N_sc point DFT transformation.

Optionally, before the RS information and the data information are transmitted on N symbols in the time domain, the method further includes: will be provided withThe samples of the RS information are mapped in the first time packet of each time domain unit after multiplying the time domain by the predetermined phase, andthe data information samples are multiplied by the predetermined phase in the time domain and then mapped in the second time packet of each time domain unit(ii) a Or, willThe samples of the RS information are mapped in the second time packet of each time domain unit after multiplying the time domain by the predetermined phase, andmultiplying the sampling points of the data information by a preset phase on a time domain, and mapping the sampling points in a first time packet of each time domain unit; mapping the information in the two time domain units onto the subcarriers in the two frequency domain units after undergoing a 2N_sc point DFT transformation.

Optionally, the predetermined phases of the samples mapped in the first time packets in the two time domain units are respectively 1, or-1, and the predetermined phases of the samples mapped in the second time packets in the two time domain units are respectively 1, -1, or-1, 1; alternatively, the predetermined phases of the samples in the first time packet mapped in the two time domain units are 1, -1, or-1, 1, respectively, and the predetermined phases of the samples in the second time packet mapped in the two time domain units are 1,1, or-1, respectively.

Optionally, the sending the RS information and the data information on N symbols in the time domain includes: the RS information and the data information mapped on the two frequency domain units are output after inverse discrete Fourier transform; wherein the number of points of the inverse discrete Fourier transform is greater than or equal to 2N_sc。

Alternatively, if the number of resource blocks RB occupied by a predetermined symbol in the frequency domain is Q, Q is an integer multiple of K.

According to an embodiment of the present disclosure, there is provided an information receiving method including: receiving Reference Signal (RS) information and data information on N symbols in a time domain; at least one preset symbol in the N symbols simultaneously carries reference signal RS information and data information, and N is a positive integer.

Optionally, there is a predetermined rotational phase of samples within a group of subcarriers having the same group index between different ones of the M frequency domain units.

According to an embodiment of the present disclosure, there is provided an information transmitting apparatus including: a sending module, configured to send reference signal RS information and data information on N symbols in a time domain; at least one preset symbol in the N symbols simultaneously carries reference signal RS information and data information, and N is a positive integer.

Alternatively, the predetermined symbol includes M frequency-domain units in the frequency domain, each frequency-domain unit includes Nsc subcarriers, the Nsc subcarriers are divided into K subcarrier groups, and the subcarrier index of a subcarrier in the frequency-domain unit in each Nsc subcarrier is K + s × K, where K is a group index of a subcarrier group in which the designated subcarrier is located, s is an index of a subcarrier group in which the designated subcarrier is located, K is 0,1, …, K-1,m and K are positive integers.

Optionally, the device also includes a processing module for performing the inverse discrete Fourier transform (IFFT) of N__ifft points on at least one predetermined symbol carrying both RS information and data information; wherein, N__ifft is greater than or equal to M*N_sc; a sending module is used to send at least one predetermined symbol after IFFT.

Optionally, the same predetermined rotational phase exists for samples within a group of subcarriers having the same group index between different ones of the M frequency domain units.

Alternatively, in the case where M is equal to K, in the frequency domain unit with index M among M frequency domain units, the rotational phase of the sample point carried on the subcarrier group with group index K is or , wherein M is 0,1, j is an imaginary unit.

Optionally, RS information and data information in M frequency domain units occupy consecutive M × N in frequency domain_scAnd (4) sub-carriers.

According to an embodiment of the present disclosure, there is provided an information receiving apparatus including: a receiving module, configured to receive reference signal RS information and data information on N symbols in a time domain; at least one preset symbol in the N symbols simultaneously carries reference signal RS information and data information, and N is a positive integer.

Optionally, the predetermined symbol includes M frequency-domain units in the frequency domain, each frequency-domain unit includes Nsc subcarriers, the Nsc subcarriers are divided into K subcarrier groups, and the subcarrier index of a subcarrier in the frequency-domain unit in each Nsc subcarrier is K + s × K, where K is a group index of the subcarrier group in which the designated subcarrier is located, and s is a group index of the designated subcarrier in the designated subcarrierThe index, K ═ 0,1, …, K-1,m and K are positive integers.

According to an embodiment of the present disclosure, there is provided a terminal including: a processor for transmitting reference signal, RS, information and data information over N symbols in a time domain; at least one preset symbol in the N symbols simultaneously carries Reference Signal (RS) information and data information, and N is a positive integer; a memory coupled to the processor.

Optionally, a processor is used to perform the inverse discrete Fourier transform (IFFT) of N__ifft points on at least one predetermined symbol carrying both RS information and data information; wherein, N__ifft is greater than or equal to M*N_sc; and to send at least one predetermined symbol after IFFT.

According to an embodiment of the present disclosure, there is provided a base station including: a processor configured to receive reference signal, RS, information and data information over N symbols in a time domain; at least one preset symbol in the N symbols simultaneously carries Reference Signal (RS) information and data information, and N is a positive integer; a memory coupled to the processor.

Optionally, in the case that M is greater than K, in the frequency domain unit with index M in M frequency domain units, the phase of the sample point carried on the subcarrier group with group index K is rotated into or ,wherein M is 0,1, j is an imaginary unit.

According to an embodiment of the present disclosure, there is provided a storage medium including a stored program, wherein the apparatus on which the storage medium is located is controlled to perform any one of the above methods when the program is executed.

According to an embodiment of the present disclosure, there is provided a processor for executing a program, wherein the program executes to perform the method of any one of the above.

By the method and the device, the RS information and the data information are sent on the same symbol, so that the RS overhead can be reduced, and a good peak-to-average ratio can be kept, and the problem of high RS overhead when the uplink control information is sent in the related art can be solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:

fig. 1 is a block diagram of a hardware configuration of a mobile terminal of an information transmission method according to an embodiment of the present disclosure;

fig. 2 is a flow chart of an information transmission method according to an embodiment of the present disclosure;

fig. 3 is a schematic flowchart of an information receiving method according to an embodiment of the present disclosure;

fig. 4 is a block diagram of the structure of an information transmitting apparatus according to an embodiment of the present disclosure;

fig. 5 is a block diagram of an information receiving apparatus provided according to an embodiment of the present disclosure;

fig. 6 is a block diagram of a terminal provided according to an embodiment of the present disclosure;

fig. 7 is a block diagram of a base station provided in accordance with an embodiment of the present disclosure;

fig. 8 is a schematic diagram of transmitting uplink control information in two symbol frequency domains 2 RBs in a time domain according to the preferred embodiment 1 of the present disclosure;

fig. 9 is a schematic diagram of transmitting uplink control information in two symbol frequency domains 4 RBs in a time domain according to the preferred embodiment 2 of the present disclosure;

fig. 10 is a schematic diagram of transmitting uplink control information in 4 RBs in the time domain and the frequency domain with 2 symbols according to the preferred embodiment 3 of the present disclosure;

fig. 11 is a schematic diagram of transmitting uplink control information in two symbols in the time domain and 2 RBs in the frequency domain according to the preferred embodiment 4 of the present disclosure;

fig. 12 is a schematic diagram of transmitting uplink control information in two symbols in the time domain and 2 RBs in the frequency domain according to the preferred embodiment 5 of the present disclosure;

fig. 13 is a schematic diagram of transmitting uplink control information in 4 RBs in the frequency domain with 1 symbol in the time domain according to the preferred embodiment 6 of the present disclosure;

fig. 14 is a schematic diagram of transmitting uplink control information when the specific domain is a frequency domain and within 3 RBs of three symbol frequency domains in a time domain according to the preferred embodiment 7 of the present disclosure;

fig. 15 is a schematic diagram of transmitting uplink control information in 4 time domains and using a frequency hopping structure according to the preferred embodiment 8 of the present disclosure.

Detailed Description

The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Example 1

The method provided by the embodiment 1 of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking an example of an application running on a mobile terminal, fig. 1 is a block diagram of a hardware structure of the mobile terminal of an information sending method according to an embodiment of the present disclosure. As shown in fig. 1, the mobile terminal 10 may include one or more (only one shown) processors 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 104 for storing data, and a transmitting device 106 for communication functions. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration and is not intended to limit the structure of the electronic device. For example, the mobile terminal 10 may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.

The memory 104 may be used to store software programs and modules of application software, such as program instructions/modules corresponding to the information transmission method in the embodiment of the present disclosure, and the processor 102 executes various functional applications and data processing by executing the software programs and modules stored in the memory 104, so as to implement the method described above. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the mobile terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal 10. In one example, the transmission device 106 includes a Network adapter (NIC) that can be connected to other Network devices through a base station to communicate with the internet. In one example, the transmission device 106 can be a Radio Frequency (RF) module, which is used to communicate with the internet in a wireless manner.

In the present embodiment, an information sending method operating in the mobile terminal is provided, and fig. 2 is a flowchart of an information sending method according to an embodiment of the present disclosure, as shown in fig. 2, the flowchart includes the following steps:

step S202, at least one preset symbol in N symbols in a time domain is preprocessed;

step S204, sending Reference Signal (RS) information and data information on N symbols in a time domain; at least one preset symbol in the N symbols simultaneously carries reference signal RS information and data information, and N is a positive integer.

Through the steps, the RS information and the data information are put on the same symbol to be sent, the RS overhead can be reduced, and a good peak-to-average ratio can be kept, so that the problem that the RS overhead is large when the uplink control information is sent in the related technology can be solved.

It should be noted that step S202 may not be executed, that is, step S204 may be executed alone, or may be executed together with step S202, but the present invention is not limited thereto.

It should be noted that the predetermined symbol comprises M frequency domain units in the frequency domain, each of which contains N_sc subcarriers. The N_sc subcarriers are divided into K subcarrier groups, the subcarrier index of the specified subcarriers in the frequency domain unit of the N_sc subcarriers is k+s * K, where K is a group index of a subcarrier group where the specific subcarrier is located, s is an index of the specific subcarrier in the subcarrier group where the specific subcarrier is located, K is 0,1, …, K-1,m and K are positive integers.

It should be noted that, a designated subcarrier group in the K subcarrier groups carries a sample point of RS information; and carrying data information sample points on other subcarrier groups except the appointed subcarrier group in the K subcarrier groups.

It should be noted that the above step S204 can include: performing the inverse discrete Fourier transform (IFFT) of N__ifft point on at least one predetermined symbol carrying both RS information and data information; wherein, N__ifft is greater than or equal to M*N_sc; sending at least one predetermined symbol after IFFT.

In an embodiment of the present disclosure, the same predetermined rotational phase exists for samples in the subcarrier group having the same group index between different frequency domain units in the M frequency domain units.

When M is equal to K, in the frequency domain unit with index M among M frequency domain units, the rotational phase of the sample point carried on the subcarrier group with group index K is equal to K or ,wherein, M is 0, 1., M-1; j is an imaginary unit.

When M is greater than K, in the frequency domain cell with index M of M frequency domain cells, the phase of the sample point carried on the subcarrier group with group index K is rotated to be K or ,wherein, M is 0, 1., M-1; j is an imaginary unit.

It should be noted that the RS information and data information within M frequency domain units occupy continuous M*N_sc subcarriers in the frequency domain.

K is 2 or more.

It should be noted that, N_sc is an integer multiple of 6.

It should be noted that, other symbols except for at least one predetermined symbol in the N symbols only carry data information, where the data information is mapped to consecutive subcarriers of other symbols after being preprocessed, where the preprocessing may include at least one of the following: encoding, scrambling, constellation modulation, multiplication with a predetermined sequence, discrete Fourier transform DFT at M*N_sc points, fast Fourier transform FFT.

In addition to sending the RS information and the data information, the RS information and the data information in the frequency domain need to be acquired, and thus, in an embodiment of the present disclosure, the sampling point of the RS information may be a sampling point of predetermined RS information or may be a sampling point of RS information obtained by performing DFT on the sampling point of the predetermined RS information.

It should be noted that the samples of RS information mapped to continuous M*N_sc subcarriers within the M frequency domain units mentioned above can be obtained by preprocessing the predetermined RS information samples in the time domain and then passing through the DFT of M*N_sc points.

The data information samples are obtained by DFT conversion of predetermined data information samples.

It should be noted that the samples of data information mapped to continuous M*N_sc subcarriers within the M frequency domain units mentioned above can be obtained by preprocessing the predetermined data information samples in the time domain and then undergoing DFT transformation of M*N_sc points.

It should be noted that, preprocessing the predetermined RS information samples in the time domain may be represented as: sampling point of predetermined RS informationOrThe phase of (1) is rotated; placing the sampling points of the preset RS information after phase rotation into a sampling point group with the index of k1 of a sampling point group in a time domain unit with the index of m 1; wherein, the time domain comprises M time domain units, and each time domain unit comprises N_sc sampling point, and the N_sc sampling points are divided into K sampling point groups, wherein the index of the specified sampling point in the time domain unit is K1+ c K, K1 is the group index of the sampling point group where the specified sampling point is located, and C is the index of the specified sample point within the sample point group where the specified sample point is located, k1＝0,1,..,K-1，m1＝0,1，…，M-1.

It should be noted that samples of the predetermined data information preprocessed in the time domain are placed in the other sample group except the sample group with the index k1 in the time domain unit with the index m1, or in the other sample group except the sample group with the index k1 in the time domain unit with the index m 1.

It should be noted that, preprocessing the predetermined data information samples in the time domain may be represented as: aiming at the sampling points of each group of data information of the sampling points of the preset data information, the sampling points of each group of data information are processedOrThe phase of (1) is rotated; correspondingly placing the sampling points of the group of data information after phase rotation into a sampling point group with the index of k1 of the sampling point group in a time domain unit with the index of m 2; wherein, the time domain comprises M time domain units, and each time domain unit comprises N_sc sampling point, and the N_sc sampling points are divided into K sampling point groups, the index of the specified sampling point in the time domain unit is K2+ c K, K2 is the group index of the sampling point group where the specified sampling point is located, c is the index of the specified sampling point in the sampling point group where the specified sampling point is located, and K2 is 0,1, K-1, and M2 is 0,1, … and M-1.

It should be noted that a set of data information samples includesA sample of data information, but is not limited thereto.

In addition, samples of the predetermined reference signal information preprocessed in the time domain are set to zero in a group of samples other than the group of samples in which the phase-rotated data information is set in the time domain unit with the index m2, or to be set to samples of the predetermined reference signal information preprocessed in the time domain unit with the index m2 other than the group of samples in which the phase-rotated data information is set.

The number of the predetermined reference signal information samples is set to

The number of the predetermined data information samples is set to

The following is the case where K=2, where the predetermined symbol includes two time domain units and two frequency domain units, with each time domain unit containing N_sc sampling points, The first time grouping in the time domain unit includes samples with index 2P among N_sc sampling points, while the second time grouping in the time domain unit includes samples with index 2P+1 among N_sc sampling points; each frequency domain unit includes N_sc subcarriers, the first frequency domain group in the frequency domain unit includes samples with index 2r in the N_sc subcarriers, and the second frequency domain group in the frequency domain unit includes samples with index 2r+1 in the N_sc subcarriers; wherein,

in an embodiment of the present disclosure, before the step S204, the method may further include one of: will be provided withThe sampling points of the RS information are mapped to the subcarriers in the first frequency domain grouping of the two frequency domain units after the predetermined phase rotation, and the RS information is transmitted to the subcarriers in the first frequency domain grouping of the two frequency domain unitsSample point passing of individual data informationThe DFT of the point is mapped to subcarriers in a second frequency domain grouping of the two frequency domain units after being multiplied by a preset phase; will be provided withThe samples of the RS information are mapped to subcarriers in a second frequency domain packet of the two frequency domain units after being subjected to predetermined phase rotation, andsample point passing of individual data informationThe DFT transform of the points is multiplied by a predetermined phase and mapped to subcarriers in a first frequency-domain grouping of two frequency-domain elements.

In an embodiment of the present disclosure, before the step S204, the method may further include one of: will be provided withThe sampling points of the RS information are mapped to subcarriers in a first frequency domain group of two frequency domain units after being rotated by a preset phase; will be provided withAnd mapping the sampling points of the RS information to subcarriers in a second frequency domain grouping of the two frequency domain units after predetermined phase rotation.

It should be noted that the predetermined phases of the samples in the first frequency-domain grouping mapped in the two frequency-domain units are respectively 1, or-1, and the predetermined phases of the samples in the second frequency-domain grouping mapped in the two frequency-domain units are respectively 1, -1, or-1, 1; alternatively, the predetermined phases of the samples in the first frequency-domain grouping mapped in the two frequency-domain units are 1, -1, or-1, 1, respectively, and the predetermined phases of the samples in the second frequency-domain grouping mapped in the two frequency-domain units are 1,1, or-1, respectively.

In an embodiment of the present disclosure, before the step S204, the method may further include: will be provided withMultiplying the sampling points of the data information by a preset phase on a time domain, mapping the sampling points in a first time packet of each time domain unit, and setting a second time packet of each time domain unit to zero; or, willMultiplying the sampling points of the data information by a preset phase on the time domain, mapping the sampling points in a second time packet of each time domain unit, and setting the first time packet of each time domain unit to be zero; mapping the information in the two time domain units onto the subcarriers in the two frequency domain units after undergoing a 2N_sc point DFT transformation.

In an embodiment of the present disclosure, before the step S204, the method may further include: will be provided withThe samples of the RS information are mapped in the first time packet of each time domain unit after multiplying the time domain by the predetermined phase, andmultiplying the sampling points of the data information by a preset phase on the time domain, and mapping the sampling points in a second time packet of each time domain unit; or, willThe samples of the RS information are mapped in the second time packet of each time domain unit after multiplying the time domain by the predetermined phase, andmultiplying the sampling points of the data information by a preset phase on a time domain, and mapping the sampling points in a first time packet of each time domain unit; mapping the information in the two time domain units onto the subcarriers in the two frequency domain units after undergoing a 2N_sc point DFT transformation.

It should be noted that the predetermined phases of the samples in the first time packet mapped in the two time domain units are respectively 1, or-1, and the predetermined phases of the samples in the second time packet mapped in the two time domain units are respectively 1, -1, or-1, 1; alternatively, the predetermined phases of the samples in the first time packet mapped in the two time domain units are 1, -1, or-1, 1, respectively, and the predetermined phases of the samples in the second time packet mapped in the two time domain units are 1,1, or-1, respectively.

In one embodiment of the present disclosure, transmitting RS information and data information over N symbols in the time domain comprises: the RS information and the data information mapped on the two frequency domain units are output after IFFT conversion; wherein the number of IFFT transform points is greater than or equal to 2N_sc。

When the number of resource blocks RB occupied by the RS information and the data information in the frequency domain in a predetermined symbol is Q, Q is an integer multiple of K. For example, when K is 3, Qmod3 is 0; when K is 4, Qmod4 is 0.

The data information transmitted on the predetermined symbol may have a different sampling point from the data information transmitted on the other symbol, or may be a subset of the data information transmitted on the other symbol, but the present invention is not limited thereto.

The main body of the above steps may be a terminal, but is not limited thereto.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present disclosure.

Example 2

An information receiving method is provided in the embodiments of the present disclosure, and fig. 3 is a schematic flowchart of the information receiving method provided in the embodiments of the present disclosure, and as shown in fig. 3, the method includes:

step S302, receiving reference signal RS information and data information on N symbols in a time domain; at least one preset symbol in the N symbols simultaneously carries Reference Signal (RS) information and data information, and N is a positive integer;

step S304, RS information and data information are processed.

Through the steps, the RS information and the data information can be received on the same symbol, namely the RS information and the data information are put on the same symbol, the RS overhead can be reduced, and a good peak-to-average ratio can be kept, so that the problem that the RS overhead is large when the uplink control information is sent in the related technology can be solved.

It should be noted that, the step S304 may not be executed, that is, the step S302 may be executed alone, or may be executed in combination with the step S304, but the present invention is not limited thereto.

It should be noted that the above predetermined symbol comprises M frequency domain units in the frequency domain, each of which contains N_sc subcarriers. The N_sc subcarriers are divided into K subcarrier groups, the subcarrier index of the specified subcarriers in the frequency domain unit of the N_sc subcarriers is k+s * K, where K is a group index of a subcarrier group where the specific subcarrier is located, s is an index of the specific subcarrier in the subcarrier group where the specific subcarrier is located, K is 0,1, …, K-1,m and K are positive integers.

It should be noted that there is a predetermined rotational phase for samples in the subcarrier group having the same group index between different frequency domain units in the M frequency domain units.

K is 2 or more.

It should be noted that, N_sc is an integer multiple of 6.

It should be noted that, with reference to the description of embodiment 1, how the RS information and the data information in the frequency domain are obtained and the process of obtaining or mapping when K is 2 is not described again here.

It should be noted that the main body of the above steps may be a network side device, such as a base station, but is not limited thereto

Example 3

In this embodiment, an information sending apparatus is further provided, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, and the description already made is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 4 is a block diagram of a structure of an information transmitting apparatus according to an embodiment of the present disclosure, as shown in fig. 4, the apparatus including:

a processing module 42, configured to pre-process at least one predetermined symbol of the N symbols in the time domain;

a sending module 44, connected to the processing module 42, configured to send reference signal RS information and data information on N symbols in the time domain; at least one preset symbol in the N symbols simultaneously carries reference signal RS information and data information, and N is a positive integer.

By the device, the RS information and the data information are sent on the same symbol, the RS overhead can be reduced, and a good peak-to-average ratio can be kept, so that the problem of high RS overhead when the uplink control information is sent in the related art can be solved.

It should be noted that the processing module 42 is optional, that is, the apparatus may include only the sending module 44, or may include the sending module 44 and the processing module 42, but is not limited thereto.

It should be noted that the above processing module 42 is used to perform the inverse discrete Fourier transform (IFFT) of N__ifft points on at least one predetermined symbol carrying both RS information and data information; wherein, N__ifft is greater than or equal to M*N_sc; the above transmission module 44 is used to transmit at least one predetermined symbol after IFFT.

In an embodiment of the present disclosure, there is a predetermined rotational phase for samples in the subcarrier group having the same group index between different ones of the M frequency domain units.

K is 2 or more.

It should be noted that, N_sc is an integer multiple of 6.

It should be noted that, preprocessing the predetermined RS information samples in the time domain may be represented as: sampling point of predetermined RS informationOrThe phase of (1) is rotated; placing the sampling points of the preset RS information after phase rotation into a sampling point group with the index of k1 of a sampling point group in a time domain unit with the index of m 1; wherein, the time domain comprises M time domain units, and each time domain unit comprises N_sc sampling points, and the N_sc sampling points are divided into K sampling point groups, wherein the index of the specified sampling point in the time domain unit is K1+ c K, K1 is the group index of the sampling point group where the specified sampling point is located, c is the index of the specified sampling point in the sampling point group where the specified sampling point is located, and K1 is 0, 1.

It should be noted that the processing module 42 is further configured to pre-process the samples of the predetermined data information in the time domain, that is, the processing module 42 is further configured to perform, for each group of samples of the predetermined data information, pre-processing on the samples of each group of data informationOr The phase of (1) is rotated; correspondingly placing the sampling points of the group of data information after phase rotation into a sampling point group with the index of k1 of the sampling point group in a time domain unit with the index of m 2; wherein, the time domain comprises M time domain units, and each time domain unit comprises N_sc sampling points, and the N_sc sampling points are divided into K sampling point groups, the index of the specified sampling point in the time domain unit is K2+ c K, K2 is the group index of the sampling point group where the specified sampling point is located, c is the index of the specified sampling point in the sampling point group where the specified sampling point is located, and K2 is 0,1, K-1, and M2 is 0,1, … and M-1.

The number of the predetermined reference signal information samples is set to

The number of the predetermined data information samples is set to

The following is a case of K ═ 2, that is, in the case of K ═ 2, the predetermined symbol includes two time domain units and two frequency domain units, each time domain unit including N_sc sampling points, and the first time grouping in the time domain unit includes samples with index 2P among N_scsamples, while the second time grouping in the time domain unit includes samples with index 2P+1 among N_scsamples; each frequency domain unit includes Nsc subcarriers, the first frequency domain group within the frequency domain unit includes samples with index 2r in N_sc subcarriers, and the second frequency domain group within the frequency domain unit includes samples with index 2r+1 in N_sc subcarriers; wherein,

in an embodiment of the present disclosure, the processing module 42 is further configured to: will be provided withThe sampling points of the RS information are mapped to the subcarriers in the first frequency domain grouping of the two frequency domain units after the predetermined phase rotation, and the RS information is transmitted to the subcarriers in the first frequency domain grouping of the two frequency domain unitsSample point passing of individual data informationThe DFT of the point is mapped to subcarriers in a second frequency domain grouping of the two frequency domain units after being multiplied by a preset phase; will be provided withThe samples of the RS information are mapped to subcarriers in a second frequency domain packet of the two frequency domain units after being subjected to predetermined phase rotation, andsample point passing of individual data informationThe DFT transform of the points is multiplied by a predetermined phase and mapped to subcarriers in a first frequency-domain grouping of two frequency-domain elements.

In an embodiment of the present disclosure, the processing module 42 is further configured to: will be provided withThe sampling points of the RS information are mapped to subcarriers in a first frequency domain group of two frequency domain units after being rotated by a preset phase; will be provided withAnd mapping the sampling points of the RS information to subcarriers in a second frequency domain grouping of the two frequency domain units after predetermined phase rotation.

In one embodiment of the present disclosure, the above processThe module 42 is also used for connectingThe sample points of data information are multiplied by a predetermined phase in the time domain and mapped into the first time group of each time domain unit, and the second time group of each time domain unit is set to zero; or, willThe sample points of data information are multiplied by a predetermined phase in the time domain and mapped into the second time group of each time domain unit, and the first time group of each time domain unit is set to zero; mapping the information in the two time domain units onto the subcarriers in the two frequency domain units after undergoing a 2N_sc point DFT transformation.

In one embodiment of the present disclosure, the processing module 42 is further configured to process the dataThe samples of the RS information are mapped in the first time packet of each time domain unit after multiplying the time domain by the predetermined phase, andThe sample points of data information are multiplied by a predetermined phase in the time domain and mapped into the second time group of each time domain unit; or, willThe samples of the RS information are mapped in the second time packet of each time domain unit after multiplying the time domain by the predetermined phase, andThe sample points of data information are multiplied by a predetermined phase in the time domain and mapped into the first time group of each time domain unit; mapping the information in the two time domain units onto the subcarriers in the two frequency domain units after undergoing a 2N_sc point DFT transformation.

In an embodiment of the present disclosure, the sending module 44 is further configured to output the RS information and the data information mapped on the two frequency domain units after performing IFFT; wherein the number of IFFT transform points is greater than or equal to 2N_sc。

The device is located in a terminal, but is not limited thereto

It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.

Example 4

In an embodiment of the present disclosure, an information receiving apparatus is provided, and fig. 5 is a block diagram of a structure of an information receiving apparatus provided according to an embodiment of the present disclosure, and as shown in fig. 5, the apparatus includes:

a receiving module 52, configured to receive reference signal RS information and data information on N symbols in a time domain; at least one preset symbol in the N symbols simultaneously carries Reference Signal (RS) information and data information, and N is a positive integer;

and a processing module 54, connected to the receiving module 52, for processing the RS information and the data information.

By the device, the RS information and the data information can be received on the same symbol, namely the RS information and the data information are put on the same symbol, the RS overhead can be reduced, and a good peak-to-average ratio can be kept, so that the problem of high RS overhead when the uplink control information is sent in the related technology can be solved.

It should be noted that the above apparatus may only include the receiving module 52, and may also include the receiving module 52 and the processing module 54, but is not limited thereto.

K is 2 or more.

It should be noted that, N_sc is an integer multiple of 6.

It should be noted that the above-mentioned apparatus may be located in a network side device, such as a base station, but is not limited thereto.

Example 5

In an embodiment of the present disclosure, a terminal is provided, and fig. 6 is a block diagram of a structure of a terminal provided according to an embodiment of the present disclosure, and as shown in fig. 6, the terminal includes:

a processor 62 configured to transmit reference signal, RS, information and data information over N symbols in a time domain; at least one preset symbol in the N symbols simultaneously carries Reference Signal (RS) information and data information, and N is a positive integer;

a memory 64 coupled to the processor 62.

By the terminal, the RS information and the data information are sent on the same symbol, the RS overhead can be reduced, and a good peak-to-average ratio can be kept, so that the problem of high RS overhead when the uplink control information is sent in the related art can be solved.

It should be noted that the above processor 62 is used to perform the inverse discrete Fourier transform (IFFT) of N__ifft points on at least one predetermined symbol carrying both RS information and data information; wherein, N__ifft is greater than or equal to M*N_sc; And for sending at least one predetermined symbol after IFFT.

K is 2 or more.

It should be noted that, N_sc is an integer multiple of 6.

The processor 62 is further configured to pre-process the samples of the predetermined data information in the time domain, that is, the processing module 42 is further configured to perform, for each group of samples of the predetermined data information, pre-processing on the samples of each group of data informationOrThe phase of (1) is rotated; correspondingly placing the sampling points of the group of data information after phase rotation into a sampling point group with the index of k1 of the sampling point group in a time domain unit with the index of m 2; wherein, the time domain comprises M time domain units, and each time domain unit comprises N_sc sampling points, and the N_sc sampling points are divided into K sampling point groups, the index of the specified sampling point in the time domain unit is K2+ c K, K2 is the group index of the sampling point group where the specified sampling point is located, c is the index of the specified sampling point in the sampling point group where the specified sampling point is located, and K2 is 0,1, K-1, and M2 is 0,1, … and M-1.

Need to explainWherein a set of data information samples comprisesA sample of data information, but is not limited thereto.

The number of the predetermined reference signal information samples is set to

The number of the predetermined data information samples is set to

The following is a case of K ═ 2, that is, in the case of K ═ 2, the predetermined symbol includes two time domain units and two frequency domain units, each time domain unit including N_sc sampling points, and the first time grouping in the time domain unit includes samples with index 2P among N_sc sampling points, while the second time grouping in the time domain unit includes samples with index 2P+1 among N_sc sampling points; each frequency domain unit includes Nsc subcarriers, the first frequency domain group within the frequency domain unit includes samples with index 2r in N_sc subcarriers, and the second frequency domain group within the frequency domain unit includes samples with index 2r+1 in N_sc subcarriers; wherein,

in one embodiment of the present disclosure, the processor described above62 is also used for one of: will be provided withThe sampling points of the RS information are mapped to the subcarriers in the first frequency domain grouping of the two frequency domain units after the predetermined phase rotation, and the RS information is transmitted to the subcarriers in the first frequency domain grouping of the two frequency domain unitsSample point passing of individual data informationThe DFT of the point is mapped to subcarriers in a second frequency domain grouping of the two frequency domain units after being multiplied by a preset phase; will be provided withThe samples of the RS information are mapped to subcarriers in a second frequency domain packet of the two frequency domain units after being subjected to predetermined phase rotation, andsample point passing of individual data informationThe DFT transform of the points is multiplied by a predetermined phase and mapped to subcarriers in a first frequency-domain grouping of two frequency-domain elements.

In one embodiment of the present disclosure, the processor 62 is further configured to one of: will be provided withThe sampling points of the RS information are mapped to subcarriers in a first frequency domain group of two frequency domain units after being rotated by a preset phase; will be provided withAnd mapping the sampling points of the RS information to subcarriers in a second frequency domain grouping of the two frequency domain units after predetermined phase rotation.

In one embodiment of the present disclosure, the processor 62 is further configured to process the data to be transmittedMultiplying the sampling points of the data information by a preset phase on a time domain, mapping the sampling points in a first time packet of each time domain unit, and setting a second time packet of each time domain unit to zero; or, willMultiplying the sampling points of the data information by a preset phase on the time domain, mapping the sampling points in a second time packet of each time domain unit, and setting the first time packet of each time domain unit to be zero; mapping the information in the two time domain units onto the subcarriers in the two frequency domain units after undergoing a 2N_sc point DFT transformation.

In one embodiment of the present disclosure, the processor 62 is further configured to process the data to be transmittedThe samples of the RS information are mapped in the first time packet of each time domain unit after multiplying the time domain by the predetermined phase, andmultiplying the sampling points of the data information by a preset phase on the time domain, and mapping the sampling points in a second time packet of each time domain unit; or, willThe samples of the RS information are mapped in the second time packet of each time domain unit after multiplying the time domain by the predetermined phase, andmultiplying the sampling points of the data information by a preset phase on a time domain, and mapping the sampling points in a first time packet of each time domain unit; mapping the information in the two time domain units onto the subcarriers in the two frequency domain units after undergoing a 2N_sc point DFT transformation.

In an embodiment of the present disclosure, the processor 62 is further configured to output the RS information and the data information mapped on the two frequency domain units after performing IFFT; wherein the number of IFFT transform points is greater than or equal to 2N_sc。

Example 6

An embodiment of the present disclosure further provides a base station, and fig. 7 is a block diagram of a structure of a base station provided according to an embodiment of the present disclosure, and as shown in fig. 7, the base station includes:

a processor 72 for receiving reference signal, RS, information and data information over N symbols in the time domain; at least one preset symbol in the N symbols simultaneously carries Reference Signal (RS) information and data information, and N is a positive integer;

a memory 74 is coupled to the processor 72.

By the base station, the RS information and the data information can be received on the same symbol, namely the RS information and the data information are put on the same symbol, the RS overhead can be reduced, and a good peak-to-average ratio can be kept, so that the problem of high RS overhead when the uplink control information is sent in the related technology can be solved.

It should be noted that, the same predetermined rotational phase exists for the samples in the subcarrier group with the same group index between different frequency domain units in the M frequency domain units.

It should be noted that, in the case where M is equal to K, the frequency domain unit with index M in M frequency domain unitsWithin a cell, the rotational phase of a sample carried on a subcarrier group with group index k is or ,wherein, M is 0, 1., M-1; j is an imaginary unit.

K is 2 or more.

It should be noted that, N_sc is an integer multiple of 6.

Example 7

The embodiment of the present disclosure further provides a storage medium including a stored program, wherein when the program runs, a device on which the storage medium is located is controlled to execute any one of the methods described above or the method described in any one of the following preferred embodiments.

Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.

Embodiments of the present disclosure also provide a processor for executing a program, where the program executes to perform any of the methods described above or any of the preferred embodiment methods described below.

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.

For a better understanding of the embodiments of the present disclosure, the present disclosure is further explained below in conjunction with the preferred embodiments.

Preferred embodiment 1

Fig. 8 is a schematic diagram of transmitting uplink control information in 2 RBs of two symbols in the time domain and the frequency domain according to preferred embodiment 1 of the present disclosure, and as shown in fig. 8, the uplink control information outputs 30 modulation symbols after being coded and QPSK modulated, and the results (X0, X1, X2, …, X22, X23) of the last 24 modulation symbols after being subjected to DFT of 24 points are sequentially mapped on 24 consecutive subcarriers of the second time domain symbol. This preferred embodiment assumes that there are 2 time domain symbols, 1 of which is the predefined symbol containing both RS and data, and that there are 2 frequency domain units M in the frequency domain on the predefined symbol, 12 subcarriers Nsc in each frequency domain unit, 2 groups K in each frequency domain unit, one group of indices (0,2,4,6,8,10), and one group of indices (1,3,5,7,9, 11).

In fig. 8, the results (a0, a1, a2, A3, a4, a5) of the first 6 modulation symbols after 6-point DFT are multiplied by 1 and phase rotation of-1, respectively, and then mapped into 2 frequency domain units, i.e., RB0, and RB1, in a packet with subcarrier index (1,3,5,7,9, 11). That is, in fig. 8, 6 data information samples (a0, a1, a2, A3, a4, a5) are sequentially mapped to subcarriers with group index k being 1 in the frequency domain unit (RB0) with index m being 0, that is, subcarriers with subcarrier index (1,3,5,7,9, 11); phase rotation results of-1 passing 6 data information samples (-a0, -a1, -a2, -A3, -a4, -a5) are mapped on subcarriers with subcarrier indexes (1,3,5,7,9,11) of a frequency domain unit (RB1) with index m ═ 1.

Likewise, the defined 6 reference signal RS samples (R0, R1, R2, R3, R4, R5) are mapped on predetermined time domain symbols. That is, in fig. 8, (R0, R1, R2, R3, R4, R5) are sequentially multiplied by phase rotations of 1 and 1, respectively, and then sequentially mapped into a packet having subcarrier indexes of (0,2,4,6,8,10) in 2 frequency domain units, i.e., RB0 and RB 1.

The data information samples (0, a0, 0, a1, 0, a2, 0, A3, 0, a4, 0, a5, 0, -a0, 0, -a1, 0, -a2, 0, -A3, 0, -a4, 0, -a5) can be expressed as (0, a0, 0, a1, 0, a2, …, 0, a9, 0, a10, 0, a11) after 24-point IFFT. For RS information samples (R0, 0, R1, 0, R2, 0, R3, 0, R4, 0, R5, 0, R0, 0, R1, 0, R2, 0, R3, 0, R4, 0, R5, 0) after performing 24-point IFFT, (R0, 0, R1, 0, R2, 0, …, R9, 0, R10, 0, R11, 0) after performing the mapping on predetermined time domain symbols and performing 24-point IFFT on data and RS at the same time, the result is (R0, a0, R1, a1, R2, a2, …, R9, a9, R10, a10, R11, a 11). Therefore, the sending method of the embodiment not only realizes that the RS and the modulation data symbol are sent on the same time domain symbol, but also can ensure better peak-to-average ratio.

Preferred embodiment 2

Fig. 9 is a schematic diagram of transmitting uplink control information in two symbol frequency domains 4 RBs in a time domain according to the preferred embodiment 2 of the present disclosure. In fig. 9, the uplink control information is encoded, scrambled, and QPSK modulated, and then 57 modulation symbols are output, and the results (X0, X1, X2, …, X46, and X47) of 48 modulation symbols after 48-point DFT are sequentially mapped on 48 consecutive subcarriers of the second time domain symbol. This embodiment assumes that there are 2 time domain symbols in the disclosure, where 1 is the predefined symbol containing both RS and data, M4 frequency domain units are contained in the frequency domain on the predefined symbol, there are 12 Nsc subcarriers in each frequency domain unit, there are 4 groups in each frequency domain unit, and the indexes of the subcarriers contained in each group are (0,4,8), (1,5,9), (2,6,10), (3,7,11), respectively.

In fig. 9, the results (a0, B0, C0, a1, B1, C1, a2, B2, and C2) of 9 modulation symbols among the output modulation symbols after being subjected to 9-point DFT are mapped in three groups in 4 frequency domain units of a predetermined time domain symbol by a certain phase offset. That is, in fig. 9, (a0, a1, a2) is multiplied by the phase rotations of 1,1, respectively, and then mapped to the four frequency domain units, i.e., RB0, RB1, RB2, RB3, in the packet with subcarrier index (0,4, 8); multiplying (B0, B1, B2) by the phase rotation of 1, -1,1, -1 respectively, and then mapping the phase rotation into a grouping with subcarrier indexes of (2,6,10) in four frequency domain units, namely RB0, RB1, RB2 and RB 3; multiplying (C0, C1, C2) by the phase rotation of 1, j, -1, -j respectively, and then mapping the multiplied values into a grouping with subcarrier indexes of (3,7,11) in four frequency domain units, namely RB0, RB1, RB2 and RB 3;

likewise, 3 defined reference signal RS samples (R0, R1, R2) are mapped on predetermined time domain symbols. Multiplying 3 RS samples by 1, -j, -1, j phase rotation respectively at a predetermined time domain symbol, and then mapping the samples to four frequency domain units (namely, a group with subcarrier indexes of (1,5,9) in RB0, RB1, RB2 and RB 3) in sequence;

at this time, a predetermined time domain symbol is sent after a 48-point IFFT operation is performed, and at this time, the reference symbol information corresponds to a sample point with a time domain index of 4n +1 and does not overlap with the data information in the time domain. Therefore, the sending method of the embodiment not only realizes that the RS and the modulation data symbol are sent on the same time domain symbol, but also can ensure better peak-to-average ratio.

Preferred embodiment 3

Fig. 10 is a schematic diagram of transmitting uplink control information in time domain 2 symbols and frequency domain 4 RBs according to the preferred embodiment 3 of the present disclosure. In fig. 10, the uplink control information is encoded, scrambled, and QPSK modulated, and then 60 modulation symbols are output, and the results (X0, X1, X2, …, X46, and X47) of 48 modulation symbols after 48-point DFT are sequentially mapped on 48 consecutive subcarriers of the second time domain symbol. This embodiment assumes that there are 2 time domain symbols in the disclosure, where 1 is the predefined symbol containing both RS and data, M2 frequency domain units in the frequency domain of the predefined symbol, each frequency domain unit contains 24 Nsc subcarriers, i.e. 2 RBs, K2 groups in the frequency domain unit, one group with index (0,2,4, …,18,20,22), and one group with index (1,3,5, …,19,21, 23).

In fig. 10, the results (a0, a1, a2, …, a9, a10, a11) of 12 modulation symbols after 12-point DFT are multiplied by 1 and-1 phase rotations, respectively, and then mapped into 2 groups of (1,3,5, …,19,21,23) subcarrier indexes in frequency domain units, where the first frequency domain unit includes RB0 and RB1 and the second frequency domain unit includes RB2 and RB 3.

Likewise, defined 12 reference signal RS samples (R0, R1, R2, …, R9, R10, R11) are mapped on predetermined time domain symbols. That is, in fig. 10, (R0, R1, R2, …, R9, R10, R11) are sequentially multiplied by phase rotations of 1 and 1, respectively, and then sequentially mapped into a packet having subcarrier indexes of (0,2,4, …,18,20,22) in 2 frequency domain units.

And carrying out 48-point IFFT operation on a preset time domain symbol and then transmitting the preset time domain symbol, wherein the reference symbol information corresponds to a sampling point with the index of 2n in the time domain and is not overlapped with the data information in the time domain. Therefore, the sending method of the embodiment not only realizes that the RS and the modulation data symbol are sent on the same time domain symbol, but also can ensure better peak-to-average ratio.

Preferred embodiment 4

Fig. 11 is a schematic diagram of transmitting uplink control information in two symbols in the time domain and 2 RBs in the frequency domain according to the preferred embodiment 4 of the present disclosure. In fig. 11, the uplink control information is encoded and QPSK modulated, and then 30 modulation symbols are output, and the results (X0, X1, X2, …, X22, and X23) of the last 24 modulation symbols after 24-point DFT are sequentially mapped on 24 consecutive subcarriers of the second time domain symbol. This embodiment assumes that there are 2 time domain symbols in the disclosure, where 1 is the predefined symbol containing both RS and data, M2 frequency domain units in the frequency domain on the predefined symbol, each frequency domain unit contains Nsc 12 subcarriers, K2 groups in the frequency domain unit, one group with index (0,2,4,6,8,10), and one group with index (1,3,5,7,9, 11).

In fig. 11, 6 defined reference signal RS samples (R0, R1, R2, R3, R4, R5) are mapped on a predetermined time domain symbol. That is, in fig. 11, (R0, R1, R2, R3, R4, R5) are sequentially multiplied by phase rotations of 1 and 1, and then sequentially mapped into a packet having subcarrier indices of (0,2,4,6,8,10) in 2 frequency domain units, i.e., RB0 and RB 1.

The first 6 modulation symbols (a0, a1, a2, a3, a4, a5) are predetermined in the time domain, two time units are defined in the time domain, each time unit contains 12 samples, the indexes are (0,2,4,6,8,10) and (1,3,5,7,9,11) respectively defined as one group. The (a0, a1, a2, a3, a4 and a5) are multiplied by 1 and phase rotation of-1 respectively and then are mapped into 2 groups with sample point indexes of (1,3,5,7,9 and 11) in time domain units in sequence. That is, the result after the pretreatment can be expressed as (0, a0, 0, a1, 0, a2, 0, a3, 0, a4, 0, a5, 0, -a0, 0, -a1, 0, -a2, 0, -a3, 0, -a4, 0, -a 5). After 12-point DFT, it may be represented as (0, a0, 0, a1, 0, a2, 0, A3, 0, a4, 0, a5, 0, -a0, 0, -a1, 0, -a2, 0, -A3, 0, -a4, 0, -a5), and then the information is sequentially mapped onto consecutive subcarriers of 2 frequency domain units in the frequency domain.

Preferred embodiment 5

Fig. 12 is a schematic diagram of transmitting uplink control information in two symbols in the time domain and 2 RBs in the frequency domain according to the preferred embodiment 5 of the present disclosure. In fig. 12, the uplink control information is encoded and QPSK modulated, and then 30 modulation symbols are output, and the results (X0, X1, X2, …, X22, and X23) of the last 24 modulation symbols after 24-point DFT are sequentially mapped on 24 consecutive subcarriers of the second time domain symbol. This embodiment assumes that there are 2 time domain symbols in the disclosure, where 1 is the predefined symbol containing both RS and data, M2 frequency domain units in the frequency domain on the predefined symbol, each frequency domain unit contains Nsc 12 subcarriers, K2 groups in the frequency domain unit, one group with index (0,2,4,6,8,10), and one group with index (1,3,5,7,9, 11).

In fig. 12, 6 reference signal RS samples (R0, R1, R2, R3, R4, R5) and 6 modulation symbols (a0, a1, a2, a3, a4, a5) are defined and predetermined processed in the time domain, two time units are defined in the time domain, each time unit contains 12 samples, the index is (0,2,4,6,8,10) is defined as one group, and the index is (1,3,5,7,9,11) is defined as one group. The (a0, a1, a2, a3, a4 and a5) are multiplied by 1 and phase rotation of-1 respectively and then are mapped into 2 groups with sample point indexes of (1,3,5,7,9 and 11) in time domain units in sequence. The samples (r0, r1, r2, r3, r4, r5) are multiplied by 1,1 phase rotation and then mapped into 2 packets with sample indexes (0,2,4,6,8,10) in time domain units. That is, the result after the preprocessing may be represented as (R0, a0, R1, a1, R2, a2, R3, A3, R4, A4, R5, A5, R0, -a0, R1, -a1, R2, -a2, R3, -A3, R4, -A4, R5, -A5), and may be represented as (R0, a0, R1, a1, R2, a2, R3, A3, R4, A4, R5, A5, R0, -a0, R1, -a1, R2, -a2, R3, -A3, R4, -A4, R5, -A5), and then maps the information to frequency domain sub-carriers in a2 in sequence.

Preferred embodiment 6

Fig. 13 is a schematic diagram of transmitting uplink control information in 4 RBs in the frequency domain with 1 symbol in the time domain according to the preferred embodiment 6 of the present disclosure. In fig. 13, 12 modulation symbols are output in total after the uplink control information is encoded, scrambled and QPSK modulated, and the results (a0, a1, a2, …, a10, a11) of 12 modulation symbols after 12-point DFT are mapped on predetermined time domain symbols. This embodiment assumes that 1 time domain symbol is included in the present disclosure and is the predefined symbol that includes both RS and data, and M ═ 4 frequency domain units are included in the frequency domain on the predefined symbol, each frequency domain unit includes Nsc ═ 12 subcarriers, and K ═ 2 packets are included in the frequency domain unit, and the index is (0,2,4,6,8,10) in one group, and the index is (1,3,5,7,9,11) in one group.

In fig. 13, the results (a0, a1, a2, …, a9, a10, a11) of 12 modulation symbols after 12-point DFT are multiplied by 1 and-1 phase rotations, respectively, and then sequentially mapped into 4 groups of (1,3,5,7,9,11) subcarrier indices in frequency domain units.

Likewise, defined 12 reference signal RS samples (R0, R1, R2, …, R9, R10, R11) are mapped on predetermined time domain symbols. That is, in fig. 13, (R0, R1, R2, …, R9, R10, R11) are sequentially multiplied by phase rotations of 1, respectively, and then sequentially mapped into a packet having a subcarrier index of (0,2,4,6,8,10) in 4 frequency domain units.

Optionally, when the time domain symbol is two symbols, each symbol simultaneously transmits data and RS information according to the above method, and frequency hopping exists between the two symbols.

Preferred embodiment 7

Fig. 14 is a schematic diagram of transmitting uplink control information when the specific domain is a frequency domain and within 3 RBs of three symbol frequency domains in a time domain according to the preferred embodiment 7 of the present disclosure. In fig. 14, the uplink control information is coded and QPSK modulated, and then, 44 modulation symbols are output, and the results (X0, X1, X2, …, X34, X35) of the latter 36 modulation symbols after 36-point DFT are sequentially mapped on 36 consecutive subcarriers of the second and third time domain symbols. This embodiment assumes that there are 3 time domain symbols in the present disclosure, where 1 is the predefined symbol containing both RS and data, M3 frequency domain units are contained in the frequency domain of the predefined symbol, each frequency domain unit contains Nsc 12 subcarriers, and K3 groups are contained in the frequency domain unit, that is, the subcarriers are indexed as (0,3,6,9), (1,4,7,10), (2,5,8,11) and are respectively set as a group.

In fig. 14, the results (a0, a1, a2, A3, B0, B1, B2, B3) of 8 modulation symbols among the output modulation symbols after 8-point DFT are mapped into two groups in 3 frequency domain cells of a predetermined time domain symbol with a certain phase offset. That is, in fig. 14, (a0, a1, a2, A3) are multiplied by phase rotations of 1,1,1, respectively, and then mapped to a packet having subcarrier indexes of (0,3,6,9) in three frequency domain units, i.e., RB0, RB1, RB2, in order; multiplying (B0, B1, B2, B3) by 1 respectively,is mapped into a grouping with subcarrier indexes of (2,5,8,11) in three frequency domain units, namely RB0, RB1 and RB 2;

same as aboveThe defined 4 reference signal RS samples (R0, R1, R2, R3) are mapped on predetermined time domain symbols. The 3 RS samples are multiplied by 1 at predetermined time domain symbols, is mapped into a group with subcarrier indexes of (1,4,7,10) in three frequency domain units, namely RB0, RB1 and RB 2; in FIG. 14

In fig. 14, the predetermined symbol is a first symbol in the time domain, and optionally, may also be a second symbol in the time domain. At this time, after the 36-point IFFT operation is performed on the predetermined time domain symbol, the reference symbol information corresponds to the sampling point with the time domain index of 3m +1, and does not overlap with the data information in the time domain. Therefore, the sending method of the embodiment not only realizes that the RS and the modulation data symbol are sent on the same time domain symbol, but also can ensure better peak-to-average ratio.

Preferred embodiment 8

Fig. 15 is a schematic diagram of transmitting uplink control information in 4 time domains and using a frequency hopping structure according to the preferred embodiment 8 of the present disclosure. In fig. 15, the uplink control information is encoded, scrambled and QPSK modulated, and then 60 modulation symbols are output, and the results (X0, X1, X2, …, X46, X47) of 48 modulation symbols after 48-point DFT are sequentially mapped on 48 consecutive subcarriers of the second and fourth time domain symbols. This embodiment assumes that there are 4 time domain symbols in the disclosure, 2 of which are the predefined symbols containing both RS and data, M2 frequency domain units in the frequency domain of the predefined symbols, each frequency domain unit containing Nsc 24 subcarriers, i.e. 2 RBs, K2 groups in the frequency domain unit, one group with indices of (0,2,4, …,18,20,22), and one group with indices of (1,3,5, …,19,21, 23).

In fig. 15, the results (a0, a1, a2, …, a9, a10, a11) of 12 modulation symbols after 12-point DFT are multiplied by 1 and-1 phase rotations, respectively, at each predetermined time domain symbol, and then mapped into 2 groups of (1,3,5, …,19,21,23) subcarrier indexes in frequency domain units, wherein the first frequency domain unit includes RB0, RB1, and the second frequency domain unit includes RB2, RB 3. Likewise, defined 12 reference signal RS samples (R0, R1, R2, …, R9, R10, R11) are mapped on predetermined time domain symbols. That is, in fig. 15, (R0, R1, R2, …, R9, R10, R11) are sequentially multiplied by phase rotations of 1 and 1, respectively, and then sequentially mapped into a packet having subcarrier indexes (0,2,4, …,18,20,22) in 2 frequency domain units.

Preferred embodiment 9

When K is 3, sampling points with the index of m and K in the Nsc sampling points in each frequency domain unit are set as a first grouping, sampling points with the index of m and K +1 are set as a second grouping, sampling points with the index of m and K +2 are set as a third grouping,further, the RS is mapped to the sampling points in the first packet, the data is mapped to the sampling points in the second and third packets, the RS is mapped to the sampling points in the second packet, the data is mapped to the sampling points in the first and third packets, or the RS is mapped to the sampling points in the third packet, and the data is mapped to the sampling points in the first and third packets. Further, the mapping K in the specific domain is 3 times after multiplying the frequency domain unit by a predetermined phase rotation on the symbols of the mapping RS and the data samples.

Further, three phase rotation vectors are defined, the first phase rotationIs 1,1,1 or-1, -1, -1; the second phase rotation is a1,or a mixture of-1 and-1,the third phase rotation is a1,or a mixture of-1 and-1,where three points in each phase rotation represent the amount of phase rotation multiplied by 3 mappings. In the case of three times of mapping, 3 groups are respectively in one-to-one correspondence with the three phase rotations.

In particular, the phase rotation multiplied by the first packet in the frequency domain unit at each mapping is 1,1,1, or-1, -1, -1, respectively, the phase rotation multiplied by the second packet in the frequency domain unit at each mapping is 1, or -1,the third packet in the frequency domain unit has a phase rotation of 1 multiplied by each mapping, or -1,

when K is 4, sampling points with indexes of m × K, 1+ m × K, 2+ m × K and 3+ m × K in the Nsc subcarriers in each frequency domain unit are respectively set as a first group, a second group, a third group and a fourth group,further, the RS is mapped to one of the four packets, and the other packets map data information. Preferably, the RS is mapped to the second packet, or the third packet. Further, the mapping K in the specific domain is 4 times after multiplying the frequency domain unit by a predetermined phase rotation on the symbols of the mapping RS and the data samples.

Further, four phase rotation vectors are defined, a first phase rotation being 1,1,1,1 or-1, -1, -1; the second phase rotation is 1, -j, -1, j or-1, j,1, -j; the third phase rotation is 1, -1,1, -1 or-1, 1, -1, 1; the fourth phase rotation is 1, j, -1, -j or-1, -j,1, j. Where four points in each phase rotation represent the amount of phase rotation multiplied by 4 mappings. In the case of four times of mapping, the four phase rotations are one-to-one corresponding to the 4 groups, respectively.

In particular, the phase rotation multiplied by the first packet in a frequency domain unit at each mapping is 1,1,1,1 or-1, -1, -1, -1, respectively, and the phase rotation multiplied by the second packet in a frequency domain unit at each mapping is 1, -j, -1, j or-1, j,1, -j, respectively; the third group in the frequency domain unit is multiplied by a phase rotation of 1, -1,1, -1 or-1, 1, -1,1 at each mapping, and the fourth group in the frequency domain unit is multiplied by a phase rotation of 1, j, -1, -j or-1, -j,1, j at each mapping.

It will be apparent to those skilled in the art that the modules or steps of the present disclosure described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. As such, the present disclosure is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. An information transmission method, comprising:

transmitting reference signal information and data information on N symbols in a time domain; wherein at least one predetermined symbol of the N symbols simultaneously carries the reference signal information and the data information, and N is a positive integer.

2. The method according to claim 1, characterized in that the predetermined symbol comprises M frequency domain units in the frequency domain, each of which contains N_sc subcarriers. The N_sc subcarriers are divided into K subcarrier groups, and the subcarrier index of the specified subcarriers in the N_sc subcarriers is k+s * K in the frequency domain unit, where k is the group index of the subcarrier group where the specified subcarriers are located, S is the index of the specified subcarrier within the subcarrier group of the specified subcarrier, k=0,1,..., K-1,N_sc, m and K are positive integers.

3. The method of claim 2, wherein one of the K subcarrier groups specifies a sampling point on a subcarrier group carrying the reference signal information; and carrying the sampling points of the data information on other subcarrier groups except the appointed subcarrier group in the K subcarrier groups.

4. The method of claim 2, wherein transmitting the reference signal information and the data information over N symbols in a time domain comprises:

Performing a discrete Fourier inverse transform of the N__ifft point on at least one predetermined symbol carrying both the reference signal information and the data information; wherein, N__ifft is greater than or equal to M*N_sc;

Transmitting the at least one predetermined symbol after the inverse discrete Fourier transform.

5. The method of claim 2, wherein there is a predetermined rotational phase of samples within a group of subcarriers having a same group index between different ones of the M frequency domain units.

6. The method of claim 5, wherein, in the case that M is equal to K, the frequency domain with index M in the M frequency domain unitsIn a cell, the rotational phase of the sample point carried on the subcarrier group with group index k is or , wherein, M is 0, 1., M-1; j is an imaginary unit.

7. The method of claim 5, wherein in case M is greater than K, in the frequency domain unit with index M of the M frequency domain units, the phase of the samples carried on the subcarrier group with group index K is rotated to be K or ,wherein, M is 0, 1., M-1; j is an imaginary unit.

8. The method according to claim 2, characterized in that the reference signal information and data information within the M frequency domain units occupy continuous M*N_sc subcarriers in the frequency domain.

9. The method of claim 2, wherein K is greater than or equal to 2.

10. The method of claim 2, wherein N_sc is an integer multiple of 6.

11. The method of claim 2, wherein the N numbers areOther symbols except the at least one predetermined symbol in the symbols only carry data information, wherein the data information is mapped to continuous subcarriers of the other symbols after being preprocessed, and the preprocessing comprises at least one of the following steps: encoding, scrambling, constellation modulation, multiplication with a predetermined sequence, discrete Fourier transform at M*N_sc points, fast Fourier transform.

12. The method according to claim 3, wherein the samples of the reference signal information are samples of predetermined reference signal information or samples of reference signal information obtained by performing discrete Fourier transform on the samples of the predetermined reference signal information.

13. The method of claim 3, wherein the M frequency domain units are mapped onto continuous M*N_sc subcarriersThe sample points of reference signal information are obtained by preprocessing the predetermined reference signal information in the time domain and then undergoing the discrete Fourier transform of M*N_sc points.

14. The method according to claim 3, wherein the sampling points of the data information are obtained by performing discrete Fourier transform on predetermined sampling points of the data information.

15. The method of claim 3, wherein the M frequency domain units are mapped onto continuous M*N_sc subcarriersThe sample points of the data information are obtained by preprocessing the predetermined sample points of the data information in the time domain and then undergoing discrete Fourier transform of M*N_sc points.

16. The method of claim 13, wherein the preprocessing the samples of the predetermined reference signal information in the time domain comprises:

sampling the predetermined reference signal informationOrThe phase of (1) is rotated;

placing the sampling points of the predetermined reference signal information after phase rotation into the sampling point group with the index of k1 of the sampling point group in the time domain unit with the index of m 1;

wherein the time domain comprises M time domain units, and each time domain unit contains N_sc sampling points, and the N_sc sampling points are divided into K sampling point groups, wherein the index of the specified sampling point in the time domain unit is K1+ c K, K1 is the group index of the sampling point group where the specified sampling point is located, c is the index of the specified sampling point in the sampling point group where the specified sampling point is located, and K1 is 0, 1.

17. The method of claim 16, wherein the samples of the predetermined data information preprocessed in the time domain are placed in zero in the time domain unit with the index m1 except the sample group with the index k1, or in the other sample groups with the index m1 except the sample group with the index k 1.

18. The method of claim 15, wherein preprocessing the predetermined samples of the data information in the time domain comprises:

for each of the predetermined data information samplesGroup data information sampling points, and the sampling points of each group of data information are processedOrThe phase of (1) is rotated;

correspondingly placing a group of sampling points of the data information after phase rotation in a sampling point group with an index of k1 of the sampling point group in the time domain unit with the index of m 2;

wherein the time domain comprises M time domain units, and each time domain unit contains N_sc sampling points, and the N_sc sampling points are divided into K sampling point groups, the index of the specified sampling point in the time domain unit is K2+ c K, K2 is the group index of the sampling point group where the specified sampling point is located, c is the index of the specified sampling point in the sampling point group where the specified sampling point is located, and K2 is 0, 1.

19. The method of claim 18, wherein the set of samples except the set of samples where the samples of the phase-rotated data information are placed in the time domain unit with the index m2 is set to zero, or wherein the predetermined samples of the reference signal information preprocessed in the time domain are placed in the set of samples except the set of samples where the samples of the phase-rotated data information are placed in the time domain unit with the index m 2.

20. The method according to claim 12, 13 or 16, wherein the number of the predetermined reference signal information samples is

21. According to claim 14 or claim 1415, 17, 18 or 19, wherein the number of the predetermined data information samples is

22. The method according to claim 2, characterized in that, in the case of K=2, the predetermined symbol includes two time domain units and two frequency domain units, each of which includes N_sc sampling points. The first time group within the time domain unit includes samples with an index of 2P among the N_sc sampling points, and the second time group within the time domain unit includes samples with an index of 2P+1 among the N_sc sampling points; each frequency domain unit includes N_sc subcarriers, the first frequency domain group within the frequency domain unit includes samples with index 2r in the N_sc subcarriers, and the second frequency domain group within the frequency domain unit includes samples with index 2r+1 in the N_sc subcarriers; wherein,

23. the method of claim 22, wherein prior to transmitting the reference signal information and the data information over N symbols in a time domain, the method further comprises one of:

will be provided withMapping the samples of the reference signal information to subcarriers in the first frequency domain groups of the two frequency domain units after predetermined phase rotation, and mapping the samples to subcarriers in the first frequency domain groups of the two frequency domain unitsPassing the sample point of the data informationThe discrete Fourier transform of the point is multiplied by a preset phase and then mapped to subcarriers in the second frequency domain grouping of the two frequency domain units;

will be provided withMapping the samples of the reference signal information to subcarriers in the second frequency domain groups of the two frequency domain units after predetermined phase rotation, and mapping the samples of the reference signal information to subcarriers in the second frequency domain groups of the two frequency domain unitsPassing the sample point of the data informationThe discrete fourier transform of a point is multiplied by a predetermined phase and mapped onto subcarriers in the first frequency-domain grouping of two of the frequency-domain cells.

24. The method of claim 22, wherein prior to transmitting the reference signal information and the data information over N symbols in a time domain, the method further comprises one of:

will be provided withThe sampling points of the reference signal information are mapped to subcarriers in the first frequency domain groups of the two frequency domain units after being subjected to preset phase rotation;

will be provided withAnd mapping the sampling points of the reference signal information to subcarriers in the second frequency domain groups of the two frequency domain units after predetermined phase rotation.

25. The method of claim 23 or 24,

the predetermined phases of the samples in the first frequency domain packet mapped in the two frequency domain units are respectively 1, or-1, and the predetermined phases of the samples in the second frequency domain packet mapped in the two frequency domain units are respectively 1, -1, or-1, 1; or,

the predetermined phases of the samples in the first frequency domain grouping mapped in two of said frequency domain units are 1, -1, or-1, 1, respectively, and the predetermined phases of the samples in the second frequency domain grouping mapped in two of said frequency domain units are 1,1, or-1, respectively.

26. The method of claim 22, wherein prior to transmitting the reference signal information and the data information over N symbols in a time domain, the method further comprises: will be provided withMultiplying a predetermined phase by each sample point of the data information in a time domain, mapping the sample points in the first time packet of each time domain unit, and setting the second time packet of each time domain unit to zero; or, willMultiplying a predetermined phase by each sample point of the data information in the time domain, mapping the sample points in the second time packet of each time domain unit, and setting the first time packet of each time domain unit to zero;

Mapping the information within the two time domain units onto the subcarriers within the two frequency domain units through 2N_sc discrete Fourier transform points.

27. The method of claim 22, wherein prior to transmitting the reference signal information and the data information over N symbols in a time domain, the method further comprises:

will be provided withThe samples of the reference signal information are mapped in the first time packet of each time domain unit after being multiplied by a predetermined phase on the time domain, andmultiplying a predetermined phase by the data information samples in the time domain, and mapping the data information samples in the second time packet of each time domain unit; or, willThe samples of the reference signal information are mapped in the second time packet of each time domain unit after being multiplied by a predetermined phase on the time domain, andmultiplying a predetermined phase by each sample point of the data information in the time domain, and mapping the sample points in the first time packet of each time domain unit;

28. A method according to claim 26 or 27, wherein the predetermined phases of the samples of the first time packet mapped in two of said time domain units are 1, or-1, respectively, and the predetermined phases of the samples of the second time packet mapped in two of said time domain units are 1, -1, or-1, respectively; or,

the predetermined phases of the samples in the first time packet mapped in two of said time domain units are 1, -1, or-1, 1, respectively, and the predetermined phases of the samples in the second time packet mapped in two of said time domain units are 1,1, or-1, respectively.

29. The method of claim 23, 24, 26 or 27, wherein transmitting the reference signal information and the data information over N symbols in the time domain comprises:

the reference signal information and the data information mapped on the two frequency domain units are output after inverse discrete Fourier transform; wherein the number of points of the inverse discrete Fourier transform is greater than or equal to 2N_sc。

30. The method of claim 2, wherein if the number of resource blocks occupied by the reference signal information and the data information in the frequency domain of the predetermined symbol is Q, Q is an integer multiple of K.

31. An information receiving method, comprising:

receiving reference signal information and data information over N symbols in a time domain; wherein at least one predetermined symbol of the N symbols simultaneously carries the reference signal information and the data information, and N is a positive integer.

32. The method of claim 31, wherein the predetermined symbol comprises M frequency domain units in the frequency domain, each of the M frequency domain units comprising N_sc subcarriers, the N_sc subcarriers are divided into K subcarrier groups, the subcarrier index of the specified subcarriers in the frequency domain unit of the N_sc subcarriers is k+s * K, where K is a group index of a subcarrier group where the specific subcarrier is located, s is an index of the specific subcarrier in the subcarrier group where the specific subcarrier is located, K is 0,1, …, K-1,N_sc, m and K are positive integers.

33. The method of claim 32, wherein one of the K subcarrier groups specifies a sampling point on a subcarrier group that carries the reference signal information; and carrying the sampling points of the data information on other subcarrier groups except the appointed subcarrier group in the K subcarrier groups.

34. The method of claim 32 wherein there is a predetermined rotational phase of samples within a group of subcarriers having the same group index between different ones of the M frequency domain units.

35. The method of claim 34, wherein in case M is equal to K, in the frequency domain unit with index M in the M frequency domain units, the rotational phase of a sample point carried on the subcarrier group with group index K is or , wherein, M is 0, 1., M-1; j is an imaginary unit.

36. The method of claim 34, wherein in case M is greater than K, in a frequency domain unit with index M of the M frequency domain units, a phase of a sample carried on a subcarrier group with group index K is rotated to be K or ,wherein, M is 0, 1., M-1; j is an imaginary unit.

37. The method according to claim 34, characterized in that the reference signal information and data information within the M frequency domain units occupy continuous M*N_sc subcarriers in the frequency domain.

38. An information transmission apparatus, comprising:

a sending module, configured to send reference signal information and data information on N symbols in a time domain; wherein at least one predetermined symbol of the N symbols simultaneously carries the reference signal information and the data information, and N is a positive integer.

39. The device according to claim 38, characterized in that the predetermined symbol comprises M frequency domain units in the frequency domain, each of which contains N_sc subcarriers. The N_sc subcarriers are divided into K subcarrier groups, the subcarrier index of the specified subcarriers in the frequency domain unit of the N_sc subcarriers is k+s * K, where K is a group index of a subcarrier group where the specific subcarrier is located, s is an index of the specific subcarrier in the subcarrier group where the specific subcarrier is located, K is 0,1, …, K-1,N_sc, m and K are positive integers.

40. The apparatus of claim 39, wherein one of the K subcarrier groups specifies samples carrying the reference signal information on a subcarrier group; and carrying the sampling points of the data information on other subcarrier groups except the appointed subcarrier group in the K subcarrier groups.

41. The apparatus of claim 39,

The device further includes a processing module for performing N__ifft point discrete Fourier inverse transformation of at least one predetermined symbol carrying both the reference signal information and the data information; wherein, N__ifft is greater than or equal to M*N_sc;

The transmitting module is configured to transmit the at least one predetermined symbol after the discrete fourier inversion.

42. The apparatus of claim 39, wherein the same predetermined rotational phase exists for samples within a group of subcarriers having a same group index among different ones of the M frequency domain units.

43. The apparatus of claim 42, wherein in case M equals K, in the frequency domain unit with index M of the M frequency domain units, the rotational phase of a sample carried on a subcarrier group with group index K is or , wherein M is 0,1, j is an imaginary unit.

44. The apparatus of claim 42, wherein in case M is larger than K, in a frequency domain unit with index M of the M frequency domain units, phases of samples carried on a subcarrier group with group index K are rotated to be K or ,wherein, M is 0, 1., M-1; j is an imaginary unit.

45. The apparatus of claim 39, wherein the reference signal information and the data information in the M frequency domain units occupy consecutive M*N_sc sub-carriers.

46. An information receiving apparatus, comprising:

a receiving module, configured to receive reference signal information and data information on N symbols in a time domain; wherein at least one predetermined symbol of the N symbols simultaneously carries the reference signal information and the data information, and N is a positive integer.

47. The device according to claim 46, characterized in that the predetermined symbol comprises M frequency domain units in the frequency domain, each of which contains N_sc subcarriers. The N_sc subcarriers are divided into K subcarrier groups, the subcarrier index of the specified subcarriers in the frequency domain unit of the N_sc subcarriers is k+s * K, where K is a group index of a subcarrier group where the specific subcarrier is located, s is an index of the specific subcarrier in the subcarrier group where the specific subcarrier is located, K is 0,1, …, K-1,N_sc, m and K are positive integers.

48. The apparatus of claim 47, wherein one of the K subcarrier groups specifies a sampling point on a subcarrier group that carries the reference signal information; and carrying the sampling points of the data information on other subcarrier groups except the appointed subcarrier group in the K subcarrier groups.

49. The apparatus of claim 47 wherein a predetermined rotational phase exists for samples within a group of subcarriers having a same group index between different ones of the M frequency domain units.

50. The apparatus of claim 49, wherein in case M equals K, in the frequency domain unit with index M of the M frequency domain units, the rotational phase of a sample point carried on the subcarrier group with group index K is or , wherein M is 0,1, j is an imaginary unit.

51. The apparatus of claim 49, wherein in case M is greater than K, in the frequency domain unit with index M of the M frequency domain units, the phase of samples carried on the subcarrier group with group index K is rotated to be K or ,wherein, M is 0, 1., M-1; j is an imaginary unit.

52. A terminal, comprising:

a processor configured to transmit reference signal information and data information over N symbols in a time domain; wherein at least one predetermined symbol of the N symbols simultaneously carries the reference signal information and the data information, and N is a positive integer;

a memory coupled with the processor.

53. The terminal according to claim 52, characterized in that the predetermined symbol comprises M frequency domain units in the frequency domain, each of which contains N_sc subcarriers. The N_sc subcarriers are divided into K subcarrier groups, the subcarrier index of the specified subcarriers in the frequency domain unit of the N_sc subcarriers is k+s * K, where K is a group index of a subcarrier group where the specific subcarrier is located, s is an index of the specific subcarrier in the subcarrier group where the specific subcarrier is located, K is 0,1, …, K-1,N_scm and K are positive integers.

54. The terminal of claim 53, wherein one of the K subcarrier groups specifies a sample point on the subcarrier group carrying the reference signal information; and carrying the sampling points of the data information on other subcarrier groups except the appointed subcarrier group in the K subcarrier groups.

55. The terminal of claim 53,

The processor is used to perform an N__ifft point discrete Fourier inverse transform on at least one predetermined symbol carrying both the reference signal information and the data information; wherein, N__ifft is greater than or equal to M*N_sc; and for transmitting at least one predetermined symbol after the discrete Fourier inverse.

56. The terminal of claim 53, wherein the same predetermined rotational phase exists for samples within a group of subcarriers having a same group index among different ones of the M frequency domain units.

57. The terminal of claim 56, wherein in case M equals K, in the frequency domain unit with index M of the M frequency domain units, the rotational phase of the samples carried on the subcarrier group with group index K is or , wherein M is 0,1, j is an imaginary unit.

58. The terminal of claim 56, wherein in case M is greater than K, in the frequency domain unit with index M of the M frequency domain units, the phase of samples carried on the subcarrier group with group index K is rotated to be K or ,wherein, M is 0, 1., M-1; j is an imaginary unit.

59. A base station, comprising:

a processor configured to receive reference signal information and data information over N symbols in a time domain; wherein at least one predetermined symbol of the N symbols simultaneously carries the reference signal information and the data information, and N is a positive integer;

a memory coupled with the processor.

60. The base station according to claim 59, characterized in that the predetermined symbol comprises M frequency domain units in the frequency domain, each of which contains N_sc subcarriers. The N_sc subcarriers are divided into K subcarrier groups, the subcarrier index of the specified subcarriers in the frequency domain unit of the N_sc subcarriers is k+s * K, where K is a group index of a subcarrier group where the specific subcarrier is located, s is an index of the specific subcarrier in the subcarrier group where the specific subcarrier is located, K is 0,1, …, K-1,N_sc, m and K are positive integers.

61. The base station of claim 60, wherein one of the K subcarrier groups specifies a sampling point on which the reference signal information is carried; and carrying the sampling points of the data information on other subcarrier groups except the appointed subcarrier group in the K subcarrier groups.

62. The base station of claim 60 wherein a predetermined rotational phase exists for samples within a group of subcarriers having a same group index between different ones of the M frequency domain units.

63. The base station of claim 62, wherein in the case that M equals K, in the frequency domain unit with index M of the M frequency domain units, the rotational phase of the samples carried on the subcarrier group with group index K is or , wherein,m-1, j is an imaginary unit.

64. The base station of claim 62, wherein in case M is larger than K, in the frequency domain unit with index M of the M frequency domain units, the phase of the samples carried on the subcarrier group with group index K is rotated to be K or ,wherein, M is 0, 1., M-1; j is an imaginary unit.

65. A storage medium, comprising a stored program, wherein the program, when executed, controls an apparatus in which the storage medium is located to perform the method of any one of claims 1 to 30.

66. A storage medium comprising a stored program, wherein the program, when executed, controls an apparatus in which the storage medium is located to perform the method of any of claims 31 to 37.

67. A processor, configured to run a program, wherein the program when running performs the method of any one of claims 1 to 30.

68. A processor, configured to run a program, wherein the program when running performs the method of any one of claims 31 to 37.