CN106888077A

CN106888077A - The transmission method and device of information

Info

Publication number: CN106888077A
Application number: CN201510938303.2A
Authority: CN
Inventors: 张雯; 夏树强; 戴博; 石靖; 方惠英
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-12-15
Filing date: 2015-12-15
Publication date: 2017-06-23
Anticipated expiration: 2035-12-15
Also published as: WO2017101799A1; CN106888077B

Abstract

The present invention provides an information transmission method and device, wherein the method includes: transmitting information on symbols in one or more subframes, the subcarrier width Δf corresponding to the symbols is 1/N×15KHz, N∈ {2,3,4,5,6}, the subframe is the subframe of the Long Term Evolution LTE system, and the symbol is determined by a preset method, which solves the problem of unreasonable design of the transmission symbol in the NB-LTE system and improves the Stability of NB-LTE system.

Description

Information transmission method and device

Technical Field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for transmitting information.

Background

Machine Type Communication (MTC) user terminals (UE), also called Machine to Machine (M2M) user Communication devices, are currently the main application form of the internet of things. Several technologies applicable to the cellular Internet Of Things (Comb-Internet Of Things, abbreviated C-IOT) are disclosed in the third Generation partnership project (3rd Generation partnership project, abbreviated 3GPP) technical report TR45.820V200, Of which Narrow band Long term evolution (NB-LTE) technology is the most attractive. The system bandwidth of the system is 200kHz, and is the same as the channel bandwidth of a Global system for Mobile Communication (GSM for short) GSM system, which brings great convenience for an NB-LTE system to reuse a GSM frequency spectrum and reduce mutual interference between adjacent and GSM channels. There are three working scenarios for NB-LTE, namely, operating "standby" independently, "transmitting" guard band "on guard band, and transmitting" inbound "on one PRB in LTE.

The emission bandwidth and the downlink subcarrier spacing of the NB-LTE are respectively 180kHz and 15kHz, which are respectively the same as the bandwidth and the subcarrier spacing of one PRB of the LTE system. There are two working modes for the uplink of NB-LTE: single-subcarrier single-tone and multi-subcarrier multi-tone. The Single-tone refers to one sub-carrier occupied for uplink transmission, and the multi-tone refers to multiple sub-carriers occupied for uplink transmission. The UE needs to indicate to the eNB that single-tone and/or multi-tone are supported. In the single-tone mode, the subcarrier width can be configured to be 3.75KHz or 15 KHz. When the uplink subcarrier width is 3.75KHz, the uplink transmission symbol needs to be redesigned to ensure compatibility with a 15KHz system. There is currently no effective solution.

Disclosure of Invention

The invention provides an information transmission method and an information transmission device, which at least solve the problem of unreasonable design of transmission symbols of an NB-LTE system.

According to an aspect of the present invention, there is provided a method for transmitting information, including:

transmitting information on symbols in one or more subframes, wherein the subcarrier width delta f corresponding to the symbols is 1/Nx 15KHz, N belongs to {2,3,4,5,6}, the subframes are subframes of a Long Term Evolution (LTE) system, and the symbols are determined by a preset method.

Further, the symbol is determined by one of the following preset modes:

each of the subframes contains n symbols;

starting from a preset subframe or a starting subframe for transmitting the information, x subframes comprise n symbols, wherein n is a preset positive integer, 2 x is a positive integer greater than or equal to 1, the subframe is a physical subframe, or the subframe is a usable subframe.

Further, the symbol is determined by one of the following preset modes:

each of the sub-frames includesA symbol;

starting from a preset subframe or a starting subframe for transmitting the information, each N/2 subframes contain 7 symbols or 6 symbols;

starting from a preset subframe or a starting subframe for transmitting the information, every N subframes contain 14 symbols or 12 symbols, wherein the subframe is a physical subframe or a usable subframe,to representAnd rounding up.

Further, the symbol is determined by one of the following preset modes:

each subframe comprises n symbols, wherein one of the n symbols has a Cyclic Prefix (CP) length ofA plurality of sampling points, the CP length of the other symbols except the one symbol isSampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each x subframes comprise n symbols, wherein the CP length of one symbol in the n symbols isA plurality of sampling points, the CP length of the other symbols except the one symbol isA data portion of the symbol having a length f_sA/Δ f sample points, f_sTo sample frequency, f_sIn Hz; wherein,indicating a rounding down and mod a modulo operation.

Further, the symbol is determined by one of the following preset modes:

in the case that the subcarrier width Δ f is 3.75KHz, each of the subframes contains 3 symbols, and each of the symbols has a CP length of 128 sample points;

starting from a preset subframe or a starting subframe for transmitting the information, each 2 subframes contain 7 symbols, wherein the CP length of one symbol in the 7 symbols is 40 sampling points, and the CP lengths of other symbols except the one symbol in the 7 symbols are 36 sampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each 3 subframes contain 10 symbols, and the CP length of each symbol is 64 sampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each 3 subframes contain 11 symbols, wherein the CP length of one symbol in the 11 symbols is 18 sampling points, and the CP lengths of other symbols except the one symbol in the 11 symbols are 11 sampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each 4 subframes contain 14 symbols, wherein the CP length of two symbols in the 14 symbols is 40 sampling points, the CP length of the 14 symbols except the other symbols of the two symbols is 36 sampling points, and the sampling frequency f_sIs 1.92 MHz.

Further, the symbol is determined by one of the following preset modes:

under the condition that the subcarrier width delta f is 3.75KHz, each subframe comprises 3 symbols, and the CP length of each symbol is 16 sampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each 2 subframes contain 7 symbols, wherein the CP length of one symbol in the 7 symbols is 8 sampling points, and the CP lengths of other symbols except the one symbol in the 7 symbols are 4 sampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each 3 subframes contain 10 symbols, and the CP length of each symbol is 8 sampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each 3 subframes contain 11 symbols, wherein the CP length of one symbol in the 11 symbols is 6 sampling points, and the CP lengths of other symbols except the one symbol in the 11 symbols are 1 sampling point;

starting from a preset subframe or a starting subframe for transmitting the information, each 4 subframes contain 14 symbols, wherein the CP length of two symbols in the 14 symbols is 8 sampling points, the CP length of the 14 symbols excluding the other symbols of the two symbols is 4 sampling points, and the sampling frequency f_sIs 240 KHz.

Further, in the TDD system, the symbol used for uplink transmission is a symbol included in a region formed by the uplink pilot timeslot UpPTS and the uplink subframe, or a symbol included in the uplink subframe region;

the symbols for downlink transmission are symbols included in a region composed of the downlink pilot time slot DwPTS and the downlink subframe, or symbols included in a downlink subframe region.

Further, in the TDD system, the symbol is determined by the number of consecutive uplink subframes within the switching period.

Further, in the TDD system, starting from the preset subframe being a first uplink subframe or a first downlink subframe in a switching period, x is equal to a continuous number of uplink subframes or a continuous number of downlink subframes, and the subframe is a physical subframe or an available subframe.

Further, in the case that the subcarrier width Δ f is 3.75KHz, in a TDD system, if the number of consecutive uplink subframes is 1, the subframe includes 3 symbols, and the CP length of each symbol is 128 samples, in one switching period;

in a conversion period, if the number of continuous uplink subframes is 2, each subframe in the 2 uplink subframes contains 3 symbols, and the CP length of each symbol is 128 sampling points; or, the 2 uplink subframes include 7 symbols, where a CP length of one symbol of the 7 symbols is 40 sampling points, and CP lengths of other symbols of the 7 symbols except the one symbol are 36 sampling points;

in a conversion period, if the number of continuous uplink subframes is 3, each subframe in the 3 uplink subframes contains 3 symbols, and the CP length of each symbol is 128 sampling points; or, the 3 uplink subframes include 10 symbols, and the CP length of each symbol is 64 sampling points, or the 3 uplink subframes include 11 symbols, where the CP length of one of the 10 symbols is 18 sampling points, and the CP lengths of the other symbols than the one symbol are 11 sampling points, where the sampling frequency f is_sIs 1.92 MHz.

Further, in a TDD system, in a switching period, if the number of consecutive uplink subframes is 1, the uplink subframe includes 3 symbols, and the CP length of each symbol is 16 sampling points;

in a conversion period, if the number of continuous uplink subframes is 2, each subframe in the 2 uplink subframes contains 3 symbols, and the CP length of each symbol is 16 sampling points; or, the 2 uplink subframes include 7 symbols, where a CP length of one symbol of the 7 symbols is 8 sampling points, and CP lengths of other symbols of the 7 symbols except the one symbol are 4 sampling points;

in a conversion period, if the number of continuous uplink subframes is 3, each subframe in the 3 uplink subframes contains 3 symbols, and the CP length of each symbol is 16 sampling points; or, the 3 uplink subframes include 10 symbols, and the CP length of each symbol is 8 sampling points, or the 3 subframes include 11 symbols, where the CP length of one of the 11 symbols is 6 sampling points, and the CP lengths of the other symbols except the one symbol are 1 sampling point, where the sampling frequency f is_sIs 240 KHz.

Further, in the TDD system, the UpPTS is used as a part of a CP of a first symbol of an uplink subframe next to the UpPTS.

Further, in the TDD system, a region formed by the UpPTS and one or more uplink subframes immediately adjacent to the UpPTS includes one or more symbols.

Further, the time-domain scheduling granularity G of the information is determined by at least one of:

N；

a Transport Block Size (TBS) of the information;

modulation and Coding Scheme (MCS) of the information;

scheduling a time domain and/or frequency domain position of a Random Access Response (RAR) of the information during downlink Control Channel/Random Access, or scheduling a Control Channel Element (CCE) corresponding to the information during downlink Control Channel or scheduling a Physical Random Access Channel (PRACH) resource during Random Access;

the number of repetitions of the information;

a resource to transmit the information.

Further, the time-domain scheduling granularity G of the information is one of:

n/2 xk subframes;

n × k subframes;

n × 12k subframes;

and N x 10k subframes, wherein k is a positive integer, and the subframes are physical subframes or usable subframes.

Further, the time domain scheduling granularity G is determined by a duplex mode of the LTE system, which includes frequency division duplex, FDD, and TDD.

Further, the starting subframe of the information satisfies one of:

t mod(N/2)＝c；

t mod N＝c；

t mod G＝c；

wherein t is 10n_f+n_sfOr, t is the available subframe index, c is a constant, n_fIs the radio frame number, n_sfIs the subframe number, and G is the time domain scheduling granularity.

Further, in the case that the subframe is a cell-specific Sounding Reference Signal (SRS) subframe, the manner of processing the symbol includes one of:

transmitting the symbol

Not transmitting symbols that overlap with the cell-specific SRS subframe

For a symbol that overlaps with the cell-specific SRS subframe, a portion of the symbol that overlaps with the SRS subframe is not transmitted.

Further, the transmitted subcarrier spacing is determined according to the device type and/or the transmission mode, wherein the transmission mode is a transmission mode configured by the base station, or the transmission mode is a transmission mode selected by the network device.

Further, a preset subframe consists of the symbols, and the length of the preset subframe is one of the following lengths: n/2 xk subframes, wherein the preset subframes are N x k subframes, and in a TDD system, the preset subframes are continuous uplink subframe numbers or continuous downlink subframe numbers in a downlink-to-uplink conversion period; in a TDD system, the switching period is integral multiple of the switching period from downlink to uplink; 5k subframes; is 10k subframes; and k is a positive integer, and the subframe is a physical subframe or an available subframe.

Further, when the information is a third message in random access, the subcarrier corresponding to the third message is determined by the PRACH resource and/or the resource indication information in the scheduling information.

Further, if the subframe in which the symbol is located is two discontinuous subframes, the symbol is not used for uplink or downlink transmission.

Further, the time domain scheduling granularity of the information is an integer multiple of the time domain resource corresponding to the PRACH, or the time domain resource corresponding to the PRACH is an integer multiple of the time domain scheduling granularity of the information.

According to another aspect of the present invention, there is also provided an information transmission apparatus, including:

the transmission module is used for transmitting information on symbols in one or more subframes, the subcarrier width delta f corresponding to the symbols is 1/Nx 15KHz, N belongs to {2,3,4,5,6}, the subframes are subframes of a Long Term Evolution (LTE) system, and the symbols are determined by a preset method.

By the invention, information is transmitted on the symbols in one or more subframes, the subcarrier width delta f corresponding to the symbols is 1/Nx15 KHz, and N belongs to {2,3,4,5 and 6}, so that one or more complete characters exist in the integral multiple subframes, the problem of unreasonable design of the transmission symbols of an NB-LTE system is solved, and the stability of the NB-LTE system is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a flow chart of a method of transmitting information according to an embodiment of the present invention;

fig. 2 is a block diagram of a transmission apparatus of information according to an embodiment of the present invention;

fig. 3 is a diagram illustrating a frame structure when a subcarrier width is 3.75KHz according to a preferred embodiment of the present invention;

fig. 4 is a diagram of another subframe structure when a subcarrier width is 3.75KHz in accordance with the preferred embodiment of the present invention;

fig. 5 is a schematic structural diagram of a first subframe in TDD uplink and downlink configuration #1 according to a preferred embodiment of the present invention;

fig. 6 is a schematic structural diagram of a first subframe in TDD uplink and downlink configuration #2 according to a preferred embodiment of the present invention;

fig. 7 is a schematic structural diagram of a first subframe in TDD uplink and downlink configuration #0 according to a preferred embodiment of the present invention;

fig. 8 is a schematic structural diagram of another first subframe in TDD uplink and downlink configuration #0 according to a preferred embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter 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 invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In the present embodiment, an information transmission method is provided, and fig. 1 is a flowchart of an information transmission method according to an embodiment of the present invention, as shown in fig. 1, the flowchart includes the following steps:

step S102, determining a symbol according to a preset method;

step S104, transmitting information on the symbol in one or more subframes, wherein the subcarrier width delta f corresponding to the symbol is 1/Nx 15KHz, N belongs to {2,3,4,5,6}, and the subframe is a subframe of a Long Term Evolution (LTE) system.

Through the steps, information is transmitted on the symbols in one or more subframes, the subcarrier width delta f corresponding to the symbols is 1/Nx15 KHz, N belongs to {2,3,4,5,6}, so that one or more complete characters exist in the subframes of integral multiple, the problem of unreasonable design of the transmission symbols of the NB-LTE system is solved, and the stability of the NB-LTE system is improved.

In an embodiment of the present invention, the symbol is determined by one of the following preset:

each of the sub-frames includes n symbols;

starting from a preset subframe or a starting subframe for transmitting the information, the x subframes comprise n symbols, wherein n is a preset positive integer, 2 x is a positive integer which is greater than or equal to 1, the subframe is a physical subframe, or the subframe is an available subframe.

each of the sub-frames includesA symbol;

starting from a preset subframe or a starting subframe for transmitting the information, every N subframes contain 14 symbols or 12 symbols, wherein the subframe is a physical subframe or a usable subframe,indicating rounding up.

each of the sub-frames comprises n symbols, wherein one of the n symbols has a cyclic prefix CP length ofA plurality of sampling points, the n symbols except the one symbol having a CP length ofSampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each x subframes comprise n symbols, wherein one of the n symbols has a CP length ofA plurality of sampling points, the n symbols except the one symbol having a CP length ofA data portion of the symbol having a length f_sA/Δ f sample points, f_sTo sample frequency, f_sIn units of Hz, wherein,indicating a rounding down and mod a modulo operation.

under the condition that the subcarrier width delta f is 3.75KHz, each subframe comprises 3 symbols, and the CP length of each symbol is 128 sampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each 2 subframes comprise 7 symbols, wherein the CP length of one symbol in the 7 symbols is 40 sampling points, and the CP lengths of other symbols except the one symbol in the 7 symbols are 36 sampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each 3 subframes comprises 10 symbols, and the CP length of each symbol is 64 sampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each 2 subframes comprise 7 symbols, wherein the CP length of one symbol in the 7 symbols is 8 sampling points, and the CP lengths of other symbols except the one symbol in the 7 symbols are 4 sampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each 3 subframes comprise 10 symbols, and the CP length of each symbol is 8 sampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each 4 subframes comprise 14 symbols, wherein the CP length of two symbols in the 14 symbols is 8 sampling points, the CP length of the 14 symbols excluding the other symbols of the two symbols is 4 sampling points, and the sampling frequency f_sIs 240 KHz.

In the embodiment of the invention, in a Time Division Duplex (TDD) system, the symbol used for uplink transmission is a symbol contained in a region formed by an uplink pilot time slot (UpPTS) and an uplink subframe, or a symbol contained in the region of the uplink subframe;

the symbol used for downlink transmission is a symbol included in a region composed of the downlink pilot timeslot DwPTS and the downlink subframe, or a symbol included in a downlink subframe region.

In an embodiment of the present invention, in a TDD system, the symbol is determined by the number of consecutive uplink subframes within a switching period.

In the embodiment of the present invention, in the TDD system, starting from the preset subframe being the first uplink subframe or the first downlink subframe in the switching period, x is equal to the number of consecutive uplink subframes or the number of consecutive downlink subframes, and the subframe is a physical subframe or an available subframe.

In the embodiment of the present invention, in the case that the subcarrier width Δ f is 3.75KHz, in a TDD system, if the number of consecutive uplink subframes is 1, the subframe includes 3 symbols, and the CP length of each symbol is 128 samples in one switching period;

in a conversion period, if the number of continuous uplink subframes is 3, each subframe in the 3 uplink subframes contains 3 symbols, and the CP length of each symbol is 128 sampling points; or, the 3 uplink subframes include 10 symbols, and the CP length of each of the symbols is 64 sampling points, or the 3 uplink subframes include 11 symbols, where the CP length of one of the 10 symbols is 18 sampling points, and the CP lengths of the other symbols than the one symbol are 11 sampling points, where the sampling frequency f is_sIs 1.92 MHz.

In the embodiment of the invention, in a TDD system, in a switching period, if the number of consecutive uplink subframes is 1, the uplink subframe includes 3 symbols, and the CP length of each symbol is 16 sampling points;

in a conversion period, if the number of continuous uplink subframes is 3, each subframe in the 3 uplink subframes contains 3 symbols, and the CP length of each symbol is 16 sampling points; or, the 3 uplink subframes include 10 symbols, and the CP length of each symbol is 8 sampling points, or the 3 subframes include 11 symbols, where the CP length of one of the 11 symbols is 6 sampling points, and the CP lengths of the 11 symbols other than the one symbol are 1 sampling point, where the sampling frequency f is_sIs 240 KHz.

In the embodiment of the invention, in the TDD system, the UpPTS is used as a part of the CP of the first symbol of an uplink subframe next to the UpPTS.

In the embodiment of the invention, in the TDD system, one or more symbols are included in a region formed by the UpPTS and one or more uplink subframes immediately adjacent to the UpPTS.

In an embodiment of the present invention, the time-domain scheduling granularity G of the information is determined by at least one of:

N；

the transport block size, TBS, of the information;

modulation coding scheme MCS of the information;

scheduling the time domain and/or frequency domain position of the RAR when the downlink control channel/random access of the information is performed, or scheduling the CCE corresponding to the downlink control channel of the information or the PRACH resource when the random access is performed;

the number of repetitions of the information;

a resource to transmit the information.

In an embodiment of the present invention, the time-domain scheduling granularity G of the information is one of:

n/2 xk subframes;

n × k subframes;

n × 12k subframes;

and N × 10k subframes, where k is a positive integer, the subframe being a physical subframe or a usable subframe.

In an embodiment of the present invention, the time domain scheduling granularity G is determined by a duplex mode of the LTE system, which includes frequency division duplex FDD and TDD.

In an embodiment of the present invention, the starting subframe of the information satisfies one of:

t mod(N/2)＝c；

t mod N＝c；

t mod G＝c；

In the embodiment of the present invention, in the case that the subframe is a cell-specific sounding reference signal, SRS, subframe, the symbol is processed in a manner including one of:

transmitting the symbol

Not transmitting symbols that overlap with the cell-specific SRS subframe

In an embodiment of the present invention, the network device determines the subcarrier spacing for transmission according to the device type and/or the transmission mode, where the transmission mode is a transmission mode configured by the base station, or the transmission mode is a transmission mode selected by the network device.

In an embodiment of the present invention, the predetermined subframe is composed of the symbol, and a length of the predetermined subframe is one of: n/2 xk subframes; the preset sub-frame is Nxk sub-frames, and in a TDD system, the preset sub-frame is a continuous uplink sub-frame number or a continuous downlink sub-frame number in a conversion period from downlink to uplink; in a TDD system, the switching period is integral multiple of the switching period from downlink to uplink; 5k subframes; is 10k subframes; and k is a positive integer, and the subframe is a physical subframe or an available subframe.

In the embodiment of the present invention, when the information is a third message in random access, the subcarrier corresponding to the third message is determined by the PRACH resource and/or the resource indication information in the scheduling information.

In the embodiment of the present invention, if the subframe in which the symbol is located is two discontinuous subframes, the symbol is not used for uplink or downlink transmission.

In the embodiment of the present invention, the time domain scheduling granularity of the information is an integer multiple of the time domain resource corresponding to the PRACH, or the time domain resource corresponding to the PRACH is an integer multiple of the time domain scheduling granularity of the information.

In this embodiment, an information transmission device is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and the description of the device that has been 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. 2 is a block diagram of an apparatus for transmitting information according to an embodiment of the present invention, as shown in FIG. 2, the apparatus including

A determining module 22, configured to determine a symbol according to a preset method;

and a transmission module 24, connected to the determination module 22, configured to transmit information on a symbol in one or more subframes, where a subcarrier width Δ f corresponding to the symbol is 1/nx15 KHz, N ∈ {2,3,4,5,6}, and the subframe is a subframe of a long term evolution LTE system.

Through the device, the determining module 22 determines the symbols according to a preset method, the transmission module 24 is connected with the determining module 22 and is used for transmitting information on the symbols in one or more subframes, the subcarrier width delta f corresponding to the symbols is 1/Nx15 KHz, N belongs to {2,3,4,5 and 6}, the problem that the transmission symbol design of an NB-LTE system is unreasonable is solved, and the stability of the NB-LTE system is improved.

The present invention will be described in detail with reference to preferred examples and embodiments.

The first preferred embodiment:

in the related art, the subcarrier width of LTE is 15KHz, each subframe is 1ms, and for a normal CP, 14 orthogonal frequency division multiplexing OFDM symbols, or 14 SC-FDMA symbols are corresponded. Capabilities of NB-LTE UEs include support for single-tone and/or multi-tone. When the UE uses a single-tone to transmit, the width of the subcarrier may be less than 15KHz, for example, 3.75 KHz. For NB-LTE operating in-band, an integer multiple of a subframe should be one or more complete symbols, in such a way that 3.75KHz and 15KHz transmissions are subframe aligned in time, avoiding scheduling waste. For example, if a symbol with a subcarrier width of 3.75Hz occupies a fraction of 1ms, the remaining fraction of time cannot be used for legacy UE transmission.

In a preferred embodiment of the present invention, a method for transmitting symbols is provided, where the method may be used for uplink or downlink.

And the eNB or the UE transmits information on symbols in one or more subframes, wherein the subcarrier width delta f corresponding to the symbols is 1/Nx 15KHz, and N belongs to {2,3,4,5,6 }. The symbols are determined in the following manner.

The first method is as follows:

each subframe contains n symbols, one of which has a CP length ofOne sample point, other symbols having CP length ofAnd (4) sampling points. Wherein f is_sIs the sampling frequency in Hz. Wherein n is a preset positive integer.

The second method comprises the following steps:

starting from a preset subframe or a starting subframe for transmitting the information, every x (x)>1) Each subframe comprises n symbols, each x subframes comprises n symbols, and the CP length of one symbol isOne sample point, other symbols having CP length ofAnd (4) sampling points. Wherein n is a preset positive integer.

The third method comprises the following steps:

starting from a preset subframe or the starting subframe for transmitting the information, x subframes contain n symbols, and x may be constant or variable, for example, starting from subframe #0 of radio frame #0, 2 subframes contain n1 symbols, the next 4 subframes contain n2 symbols, the next 2 subframes contain n1 symbols, the next 4 subframes contain n2 symbols, and so on. The CP length of the symbol is calculated as in mode two.

Further, each subframe may containA symbol.

Alternatively, starting from a preset subframe or a starting subframe for transmitting the information, every N/2 subframes includes 7 symbols or 6 symbols.

Alternatively, starting from a preset subframe or a starting subframe for transmitting the information, every N subframes contain 14 symbols or 12 symbols.

The subframe may be a physical subframe or may also be an available subframe. The available subframes are eNB configured or preset. For example, for a TDD system, for uplink, the available subframes may be all uplink subframes. For a scenario where the available subframes are not consecutive, for example, in a radio frame, the subframe indexes are 0 to 9, and the remaining subframes except subframe #1 are all available subframes, then when a part of a symbol is defined in subframe #0 and another part is defined in subframe #2, the symbol is not available, i.e., not used for transmitting information.

The following gives in detail the way of determining the symbols in case of several subcarrier spacings. The lengths of the data portion and the CP portion are given in the following manner by taking sampling rates of 1.92MHz and 240KHz as examples, the sampling rate in practice may be other values, and the number of sampling points corresponding to the data portion and the CP portion of the symbol varies in proportion to the sampling rate, but the corresponding actual time duration is the same as the following analysis.

Several symbol patterns are given below when N-4, the subcarrier width is 3.75 KHz.

The first method is as follows:

assuming a sampling frequency of 1.92MHz and a sampling interval T ofAnd second. There are 1920 samples for 1ms (millisecond), and 512 samples for the data portion of one symbol if the subcarrier spacing is 3.75 kHz. If other sampling frequencies are adopted, the number of sampling points corresponding to the following symbols and CP is increased or decreased in proportion, and the actual lengths of the symbols and CP are unchanged. 1ms or 1 subframe contains 3 complete symbols, each symbol contains a data portion and a CP, the CP length of each symbol is 128 sampling points, namely 128T, and the corresponding duration isI.e., 66.67 mus (microseconds) — if the actual sampling rate is 3.84MHz, then the data portion of the symbol has 512 × 2-1024 samples and the CP portion has 128 × 2-256 samples, but the corresponding duration is still 66.67 mus.

If the sampling frequency is 240KHz, the data portion of one symbol has 64 samples, 1ms or 1 subframe contains 3 complete symbols, each symbol contains a data portion and a CP, and the CP length of each symbol is 16 samples.

The second method comprises the following steps:

assuming that the sampling frequency is 1.92MHz, 2ms or 2 subframes include 7 complete symbols, where the CP length of one symbol is 40 samples and the CP length of the other symbols is 36 samples. Preferably, the CP length of the first symbol is 40 samples. The CP length of the other symbols is 36 samples.

Assuming that the sampling frequency is 240KHz, 2ms or 2 subframes include 7 complete symbols, where the CP length of one symbol is 8 samples and the CP length of the other symbols is 4 samples. Preferably, the CP length of the first symbol is 8 samples. The CP length of the other symbols is 4 samples.

In practical applications, 10 subframes are included in any radio frame, and the indices are 0, 1, and … … 9 according to the time sequence, and each two subframes include 7 symbols from subframe #0 of the radio frame.

Or, the symbol is determined according to the starting position of PUSCH/PDSCH scheduled by the eNB. For example, the eNB schedules the starting subframe of PUSCH to subframe 3 of radio frame 4, and every two subframes contain 7 symbols starting from subframe 3 of radio frame 4.

The third method comprises the following steps:

assuming that the sampling frequency is 1.92MHz, 3ms or 3 subframes contain 10 symbols, and the CP length of each symbol is 64 samples.

Alternatively, 3ms or 3 subframes contain 11 symbols, where the CP length of one symbol is 18 samples and the CP length of the other symbols is 11 samples. Preferably, the CP length of the first symbol is 18 samples. The CP length of the other symbols is 11 samples.

Assuming that the sampling frequency is 240KHz, 3ms or 3 subframes contain 10 symbols, and the CP length of each symbol is 8 sampling points.

Alternatively, 3ms or 3 subframes contain 11 symbols, where the CP length of one symbol is 6 samples and the CP length of the other symbols is 1 sample. Preferably, the CP length of the first symbol is 6 samples. The CP length of the other symbols is 1 sample point.

In practical applications, a certain radio frame may be started, and each three subframes include 11 symbols. For example, each three subframes may be divided into 11 symbols starting with radio frame # 0.

Or, the symbol is determined according to the starting position of PUSCH/PDSCH scheduled by the eNB. For example, if the eNB schedules the PUSCH starting subframe to be subframe 3 of radio frame 4, every 3 subframes contain 11 symbols starting from subframe 3 of radio frame 4.

The method is as follows:

assuming that the sampling frequency is 1.92MHz, 4ms or 4 subframes include 14 symbols, where the CP length of two symbols is 40 samples, and the CP length of the other symbols is 36 samples. Preferably, the CP length of the first and eighth symbols is 40 samples. The CP length of the other symbols is 36 samples.

Assuming that the sampling frequency is 240Hz, 2ms or 2 subframes contain 7 complete symbols, wherein the CP length of one symbol is 8 samples, and the CP length of the other symbols is 4 samples. Preferably, the CP length of the first symbol is 8 samples. The CP length of the other symbols is 4 samples.

In practical applications, starting from subframe #0 of a radio frame, every 4 subframes contain 7 symbols. For example, beginning with subframe #0 of radio frame #0, every 4 subframes contains 7 symbols.

Or, the symbol is determined according to the starting position of PUSCH/PDSCH scheduled by the eNB. For example, if the eNB schedules the PUSCH starting subframe to be subframe 3 of radio frame 4, each 4 subframes contains 14 symbols starting from subframe 3 of radio frame 4.

The determination of the symbols for other subcarrier widths is given similarly below.

Several symbol patterns are given below when N is 6 and the subcarrier width is 2.5 KHz.

The first method is as follows:

assuming that the sampling frequency is 1.92MHz, the length of the data portion corresponding to the symbol is 768 samples. 1ms or 1 subframe contains 2 complete symbols, each symbol containing a data portion and a CP, the CP length of each symbol being 192 samples.

If the sampling frequency is 240KHz, the data portion of one symbol has 96 samples, 1ms or 1 subframe contains 2 complete symbols, each symbol contains a data portion and a CP, and the CP length of each symbol is 24 samples.

The second method comprises the following steps:

assuming that the sampling frequency is 1.92MHz, 3ms or 3 subframes include 7 symbols, where the CP length of one symbol is 60 samples and the CP length of the other symbols is 54 samples. Preferably, the CP length of the first symbol is 60 samples. The CP length of the other symbols is 54 samples.

Alternatively, a 3ms or 3 sub-frame contains 6 symbols, each having a CP length of 192 samples.

Assuming that the sampling frequency is 240KHz, 3ms or 3 subframes contain 7 symbols, where the CP length of one symbol is 12 samples and the CP length of the other symbols is 6 samples. Preferably, the CP length of the first symbol is 12 samples. The CP length of the other symbols is 6 samples.

Alternatively, a 3ms or 3 subframe contains 6 symbols, each having a CP length of 24 samples.

The third method comprises the following steps:

assume that a sampling frequency is 1.92MHz, 6ms or 6 subframes contain 14 symbols, where the CP length of two symbols is 60 samples, and the CP length of the other symbols is 54 samples. Preferably, the CP length of the first and eighth symbols is 60 samples. The CP length of the other symbols is 54 samples.

Alternatively, 6ms or 6 subframes contain 12 symbols, each having a CP length of 192 samples.

Assuming that a sampling frequency is 240KHz, 6ms or 6 subframes include 14 symbols, where the CP length of one symbol is 12 samples and the CP length of the other symbols is 6 samples. Preferably, the CP length of the first symbol is 12 samples. The CP length of the other symbols is 6 samples.

Alternatively, 6ms or 6 subframes contain 12 symbols, each with a CP length of 24 samples.

Several symbol patterns are given below when N-5, the subcarrier width is 3 KHz.

The first method is as follows:

assuming that the sampling frequency is 1.92MHz, the length of the data portion corresponding to the symbol is 640 sampling points. 1ms or 1 subframe contains 2 complete symbols, each symbol containing a data part and a CP, the CP length of each symbol being 320 sample points.

If the sampling frequency is 240KHz, the data portion of one symbol has 80 samples, 1ms or 1 subframe contains 2 complete symbols, each symbol contains a data portion and a CP, and the CP length of each symbol is 40 samples.

The second method comprises the following steps:

assuming that a sampling frequency is 1.92MHz, 2.5ms or 2.5 subframes include 7 symbols, where 2.5 subframes refer to 2 subframes and one slot, i.e., 2.5ms, where the CP length of one symbol is 50 samples and the CP length of the other symbols is 45 samples. Preferably, the CP length of the first symbol is 50 samples. The CP length of the other symbols is 45 samples.

Alternatively, the 2ms or 2.5 sub-frames contain 6 symbols, each having a CP length of 160 samples.

Assuming that a sampling frequency is 240KHz, 2.5ms or 2.5 subframes include 7 symbols, where 2.5 subframes refer to 2 subframes and one slot, where the CP length of one symbol is 10 samples and the CP lengths of other symbols are 5 samples. Preferably, the CP length of the first symbol is 10 samples. The CP length of the other symbols is 5 samples.

Alternatively, the 2ms or 2.5 sub-frames contain 6 symbols, each having a CP length of 20 samples.

The third method comprises the following steps:

assuming that the sampling frequency is 1.92MHz, 5ms or 5 subframes include 14 symbols, where the CP length of two symbols is 50 samples and the CP length of the other symbols is 45 samples. Preferably, the CP length of the first symbol and the eighth symbol is 50 sample points. The CP length of the other symbols is 45 samples.

Alternatively, 5ms or 5 subframes contain 12 symbols, each having a CP length of 160 samples.

Assuming that a sampling frequency is 240KHz, 5ms or 5 subframes include 14 symbols, where the CP length of two symbols is 10 samples and the CP length of the other symbols is 5 samples. Preferably, the CP length of the first symbol and the eighth symbol is 10 sample points. The CP length of the other symbols is 5 samples.

Alternatively, 5ms or 5 subframes contain 12 symbols, each having a CP length of 20 samples.

Several symbol patterns are given below when N-3 and the subcarrier width is 5 KHz.

The first method is as follows:

assuming that the sampling frequency is 1.92MHz, the length of the data portion corresponding to the symbol is 384 samples. 1ms or 1 subframe contains 4 complete symbols, each symbol containing a data part and a CP, the CP length of each symbol being 96 sample points.

If the sampling frequency is 240KHz, the data portion of one symbol has 48 samples, 1ms or 1 subframe contains 4 complete symbols, each symbol contains a data portion and a CP, and the CP length of each symbol is 12 samples.

The second method comprises the following steps:

assuming that a sampling frequency is 1.92MHz, and a 1.5ms or 1.5 subframe includes 7 symbols, where a 1.5 subframe refers to 1 subframe and one slot, a CP length of one symbol is 30 samples, and CP lengths of other symbols are 27 samples. Preferably, the CP length of the first symbol is 30 samples. The CP length of the other symbols is 27 samples.

Alternatively, the 1.5ms or 1.5 subframe contains 6 symbols, each having a CP length of 96 samples.

Assuming that a sampling frequency is 240KHz, 1.5ms or 1.5 subframes include 7 symbols, where the CP length of one symbol is 6 samples and the CP length of the other symbols is 3 samples. Preferably, the CP length of the first symbol is 6 samples. The CP length of the other symbols is 3 samples.

Alternatively, the 1.5ms or 1.5 subframe contains 6 symbols, each having a CP length of 12 samples.

The third method comprises the following steps:

assuming that the sampling frequency is 1.92MHz, 3ms or 3 subframes contain 14 symbols, where the CP length of two symbols is 30 samples and the CP length of the other symbols is 27 samples. Preferably, the CP length of the first symbol and the eighth symbol is 30 sample points. The CP length of the other symbols is 27 samples.

Alternatively, 3ms or 3 subframes contain 12 symbols, each having a CP length of 96 samples.

Assuming that the sampling frequency is 240KHz, 3ms or 3 subframes contain 14 symbols, where the CP length of two symbols is 6 samples and the CP length of the other symbols is 3 samples. Preferably, the CP length of the first symbol and the eighth symbol is 6 samples. The CP length of the other symbols is 3 samples.

Alternatively, 3ms or 3 subframes contain 12 symbols, each having a CP length of 12 samples.

Several symbol patterns are given below when N is 2 and the subcarrier width is 7.5 KHz.

The first method is as follows:

assuming that the sampling frequency is 1.92MHz, the length of the data portion corresponding to the symbol is 256 sampling points. 1ms or 1 subframe contains 7 complete symbols, each symbol containing a data portion and a CP, wherein the CP length of one symbol is 20 samples, and the CP length of the other symbols is 18 samples. Preferably, the CP length of the first symbol is 20 samples. The CP length of the other symbols is 18 samples.

If the sampling frequency is 240KHz, the data portion of one symbol has 32 samples. 1ms or 1 subframe contains 7 complete symbols, each symbol containing a data portion and a CP, where the CP length of one symbol is 4 samples and the CP length of the other symbols is 2 samples. Preferably, the CP length of the first symbol is 4 samples. The CP length of the other symbols is 2 samples.

The second method comprises the following steps:

assuming that the sampling frequency is 1.92MHz, the length of the data portion corresponding to the symbol is 256 sampling points. 2ms or 2 subframes contain 14 complete symbols, each symbol containing a data portion and a CP, where the CP length of two symbols is 20 samples and the CP length of the other symbols is 18 samples. Preferably, the CP lengths of the first and eighth symbols are 20 samples, and the CP lengths of the other symbols are 18 samples.

If the sampling frequency is 240KHz, the data portion of one symbol has 32 samples, 2ms or 2 subframes contain 14 complete symbols, each symbol contains a data portion and a CP, where the CP length of two symbols is 4 samples and the CP length of the other symbols is 2 samples. Preferably, the CP lengths of the first and eighth symbols are 4 samples, and the CP lengths of the other symbols are 2 samples.

Alternatively, for a TDD system, the symbols may be determined from physical subframes as described above, or from available subframes as described above. The latter is exemplified here, for example, starting from the first uplink subframe of radio frame #0, every x uplink subframes contain several complete symbols. Preferably, x may be equal to a number of consecutive subframes in a transition period, such as for TDD uplink and downlink configuration #2, i.e., "DSUDD", where "D" represents downlink, "S" represents special subframe, and "U" represents uplink. There is only one consecutive uplink subframe in a switching period, and each uplink subframe contains 3 symbols for a subcarrier width of 3.75KHz in the manner determined above. Alternatively, from the above, one method for determining the symbols is to start from a preset subframe or a starting subframe for transmitting the information, and every x (x >1) subframes contain n symbols. Here, x may be a constant value or a variable value. For the TDD system, x may vary according to a ratio, for example, for uplink and downlink configuration #6, that is, "DSUUUDSUUD", starting from subframe #0 of radio frame #0, 3 consecutive uplink subframes include 10 symbols, next 2 consecutive uplink subframes include 7 symbols, next 3 consecutive uplink subframes include 10 symbols, next 2 consecutive uplink subframes include 7 symbols, and so on. In addition, when the TDD uplink and downlink configuration changes, x may also change according to the configuration, for example, when the system is in uplink and downlink configuration #0, each 3 subframes includes 10 symbols, and when the system changes to uplink and downlink configuration #1, each 2 subframes includes 7 symbols.

The second preferred embodiment:

the preferred embodiment considers a TDD scenario. The TDD system has different uplink and downlink subframe configurations, and no matter which configuration is used, the symbol can be determined in the manner of the first embodiment. For the first mode, the whole 3 symbols can be accommodated within 1ms, and the TDD is not affected by different configurations.

Table 1 below gives the uplink and downlink configuration in TDD.

TABLE 1

Taking the subcarrier width of 3.75KHz as an example, for the case that 2ms contains 7 symbols, 3ms contains 10 or 11 symbols, and 4ms contains 14 symbols, for the uplink, if some symbols only partially fall into the uplink subframe region, the symbols are knocked out; or, if only part of some symbols falls in the region consisting of the uplink subframe and the UpPTS, the symbols are dropped. That is, only all symbols falling in the uplink subframe region or the region composed of the uplink subframe and the UpPTS are used for uplink transmission. For downlink, if some symbols only partially fall in the downlink subframe region or the region composed of the downlink subframe and the DwPTS, the symbols are dropped, that is, only all symbols falling in the downlink subframe region or the region composed of the downlink subframe and the DwPTS are used for downlink transmission.

An example of symbols for uplink transmission is illustrated below. For TDD uplink and downlink configuration #2, i.e., "DSUDDDSUDD", where "D" represents downlink, "S" represents special subframe, and "U" represents uplink. For the first "U" in the configuration, which is the third subframe, according to the method in the first embodiment, the second subframe and the following subframe together contain 7 symbols, but the following subframe is a downlink subframe, so that part or all of the symbols falling in the fourth subframe are dropped, then the symbols for uplink transmission are only 3 symbols in the "U" subframe, the length of the data portion of each symbol is 512 samples, the CP length of the first symbol is 40 samples, and the CP lengths of the other symbols are 36 samples. A similar approach is taken for the second "U".

For downlink subframes, symbols may also be transmitted in a similar manner.

The third preferred embodiment:

the present embodiment considers a TDD scenario. In this embodiment, consecutive uplink/downlink subframes in TDD include one or more complete symbols.

For the uplink and downlink configurations 2 and 5, there are only 1 uplink subframe, and assuming that the subcarrier width is 3.75KHz, the symbol can only be transmitted in the first manner in the first embodiment. That is, the uplink subframe includes 3 symbols, and the CP length of the symbols is as in the first embodiment.

For the uplink and downlink configurations 1, 4, and 6, there are 2 consecutive uplink subframes, and assuming that the subcarrier width is 3.75KHz, the symbols may be transmitted in the first manner or the second manner in the first embodiment. That is, each of the 2 uplink subframes includes 3 symbols, and the CP length of the symbols is as in the first embodiment. Or the 2 uplink subframes include 7 symbols, and the CP length of the symbols is as in the second embodiment.

For uplink and downlink configurations 0, 3, and 6, there are 3 consecutive uplink subframes, and assuming that the subcarrier width is 3.75KHz, symbols may be transmitted in the first or third manner in embodiment one. That is, each of the 3 uplink subframes includes 3 symbols, and the CP length of the symbols is as in the first embodiment. Or the 3 uplink subframes include 10 or 11 symbols, and the CP length of the symbols is as in the third embodiment.

Similar approaches are used for other subcarrier widths.

For downlink subframes, symbols may also be transmitted in a similar manner.

The preferred embodiment four:

the present embodiment considers a TDD scenario.

For uplink, one or more continuous uplink subframes immediately after the UpPTS include one or more complete symbols.

For downlink, the DwPTS and one or more consecutive downlink subframes immediately before contain one or more complete symbols.

The following description is made by way of an example. Assume that the subcarrier width is 3.75 KHz.

In the prior art, the UpPTS includes one symbol or two symbols, the symbol is a symbol with a subcarrier width of 15KHz, and the number of sampling points corresponding to a data portion is 128.

The number of sampling points of UpPTS under two CPs is as follows, where each symbol includes a data portion and a CP.

The length of UpPTS under two CPs in Table 2 below

TABLE 2

	UpPTS contains one symbol	UpPTS contains two symbols
			Normal CP	137	274
Extended CP	160	320

The one or more consecutive uplink subframes immediately after the UpPTS contain one or more complete symbols, which may increase the number of available symbols in some scenarios compared to the embodiments. The length of the CP is increased even without increasing the number of symbols. Is advantageous for transmission. Especially if the uplink TA estimation is not accurate.

Table 3 below gives how the symbols are transmitted. Assume a sampling rate of 1.92 MHz. In table 3, the UpPTS and the next consecutive uplink subframe or subframes include one or more complete symbols, and the number of the next consecutive uplink subframes is "number of uplink subframes" in the first column. Taking the uplink subframe number as 1 as an example, when the UpPTS is a symbol, the symbol at this time is a symbol with a subcarrier width of 15KHz defined in the existing LTE, when the CP is a normal CP, the total number of sampling points is 1920+137, the UpPTS and a subsequent uplink subframe totally include 3 complete symbols, the CP length of one symbol is 175, and the CP lengths of other symbols are 173. Preferably, the CP length of the first symbol is 175, and the CP lengths of the other symbols are 173.

TABLE 3

Preferably, in the last column "number of samples corresponding to CP" in table 3, "one of the symbols" is the first symbol.

For uplink and downlink configurations 2 and 5, only 1 uplink subframe is used, and symbols are transmitted according to the uplink subframe number of 1 in table 3.

For uplink and downlink configurations 1, 4, and 6, there are 2 consecutive uplink subframes, and symbols may be transmitted in a manner that the number of uplink subframes in table 3 is 2. Alternatively, for the special subframe and the first uplink subframe immediately after the special subframe, the symbol may be transmitted in the manner that the number of uplink subframes in table 3 is 1, and the second uplink subframe transmits the symbol in the manner of the first embodiment.

For uplink and downlink configurations 0, 3, and 6, there are 3 consecutive uplink subframes, and symbols can be transmitted in a manner that the number of uplink subframes in table 3 is 3. Alternatively, for the special subframe and the first uplink subframe immediately after the special subframe, the symbols may be transmitted in a manner that the number of uplink subframes in table 3 is 1, and the second and third uplink subframes may transmit the symbols in the first or second manner in embodiment one. Alternatively, for the special subframe and two consecutive uplink subframes immediately after the special subframe, the symbols may be transmitted in the manner that the number of uplink subframes in table 3 is 2, and the third uplink subframe transmits the symbols in the first manner in embodiment one.

For downlink subframes, symbols may also be transmitted in a similar manner.

Preferred embodiment five:

the present embodiment considers a TDD scenario.

For uplink, UpPTS is as part of CP of the first symbol of the immediately adjacent uplink subframe. The symbols of several uplink subframes immediately adjacent to the UpPTS are as in embodiment two or three. For example, the number of samples of the UpPTS part is 137, assuming that the subcarrier width is 3.75KHz, and the following uplink subframe includes 3 symbols, according to the first embodiment, the number of samples of the CP of each symbol is 128, and then the CP of the first symbol is 137+128 — 265.

For downlink, the DwPTS region includes one or more complete symbols. The transmission symbols of other downlink subframes are as in the second or third embodiment.

Preferred embodiment six:

the time domain scheduling granularity refers to the minimum unit of each scheduling, and may be determined by N. Suppose the subcarrier width Δ f corresponding to the symbol is 1/Nx 15KHz, and N is ∈ {2,3,4,5,6 }. The time domain scheduling granularity may be k × N/2, or k × N, or N × 12k subframes; and N x 10k subframes, wherein k is a positive integer, and the subframes are physical subframes or usable subframes. The time domain scheduling granularity may be a continuous subframe or a discontinuous subframe.

For a symbol with a subcarrier width of 3.75KHz in the above embodiment, if 2 subframes contain 7 symbols, the time-domain scheduling granularity should be 2k subframes, where k is a positive integer. If 3 subframes contain 10 or 11 symbols, the time-domain scheduling granularity should be 3k subframes, where k is a positive integer, if 4 subframes contain 14 symbols, the time-domain scheduling granularity should be 4k subframes, where k is a positive integer.

For TDD, the time domain scheduling granularity may be physical subframes or symbols, for example, the time domain scheduling granularity is 40 physical subframe subframes or 120 symbols, it is assumed here that a symbol is transmitted in the manner in the first embodiment without being affected by uplink and downlink configuration, and if the eNB schedules a PUSCH with one scheduling granularity to the UE, the UE transmits in a symbol of an UL subframe in 40 consecutive physical subframes. Alternatively, the scheduling granularity may also be available subframes or symbols, such as 40 subframes or 120 symbols, and it is assumed that a symbol is transmitted in the manner of embodiment one, and if the eNB schedules a PUSCH with one scheduling granularity to the UE, the UE transmits in 120 symbols of 40 UL subframes.

Optionally, the time domain scheduling granularity of the information is an integer multiple of a time domain resource corresponding to the PRACH, or the time domain resource corresponding to the PRACH is an integer multiple of the time domain scheduling granularity of the information. For example, the PRACH is transmitted over 40 subframes, and the time domain scheduling granularity is a multiple of 40 subframes, such as 80 or 120. As another example, the PRACH is transmitted over 80 subframes, with a time-domain scheduling granularity of 20 subframes or 40 subframes.

Optionally, the time domain scheduling granularity may also be determined by the TBS of the information. For example, when the TBS is greater than a threshold, the time-domain scheduling granularity is a, otherwise, it is b.

Optionally, the time domain scheduling granularity may also be determined by the MCS of the information. For example, when the MCS is greater than a threshold, the time domain scheduling granularity is a, otherwise, the time domain scheduling granularity is b.

Optionally, the time domain scheduling granularity may also be determined by a time domain and/or a frequency domain position of the downlink control information/RAR that schedules the information, or PRACH resource at the time of random access, or a CCE corresponding to the downlink control information that schedules. For example, when the time domain starting position of the downlink control information for scheduling the information is an even number, the time domain scheduling granularity is a, otherwise, the time domain scheduling granularity is b. For another example, the time-domain scheduling granularity of the message three is determined by the time-frequency resource location of the RAR, or determined by the PRACH resource.

Optionally, the time-domain scheduling granularity may also be determined by the number of repetitions of the information, for example, when the number of repetitions is greater than a threshold, the time-domain scheduling granularity is a, otherwise, the time-domain scheduling granularity is b.

Optionally, the time domain scheduling granularity may also be determined by time domain and/or frequency domain resources of the information transmission. For example, when the eNB schedules the UE to transmit on subcarriers 0-3, the time domain scheduling granularity is a; and when the eNB schedules the UE to transmit on the subcarriers 4-7, the time domain scheduling granularity is b. The time domain scheduling granularity may be different for FDD and TDD, such as 48 for FDD and 60 for TDD.

The time domain scheduling granularity may be a preset or RRC signaling indication, and may be different granularities for different CPs. The preferred embodiment is seven:

and the eNB or the UE transmits information on symbols in one or more subframes, wherein the subcarrier width delta f corresponding to the symbols is 1/Nx 15KHz, and N belongs to {2,3,4,5,6 }. The starting subframe of the eNB or the UE for transmitting information meets one of the following conditions:

t mod/(N/2)＝c；

t mod/N＝c；

t mod G＝c；

wherein c is a constant, t is 10n_f+n_sf，n_fIs the radio frame number, n_sfIs the subframe number. Or t may also be an available subframe index,

the following description will be made by taking the subcarrier width as 3.75KHz as an example. If the subframe n is the subframe of the uplink grant sent by the eNB or the last subframe of the uplink grant sent by the eNB, the UE starts sending the PUSCH in the n + k subframe, or the first satisfaction (10 n) of the UE after the n + k subframe (including the n + k subframe)_f+n_sf) mod2 ═ c, or (10 n)_f+n_sf) mod4 ═ c, or (10 n)_f+n_sf) And c, where G is a time domain scheduling granularity, "mod" denotes a modulo operation, and c is a constant, such as 0. k is a preset value, e.g. for FDD, k is 4.

If n is the subframe where the UE receives the PDSCH or the last subframe where the PDSCH is received, the UE starts to transmit ACK/NACK in n + k subframes, or the first satisfaction (10 n) of the UE after n + k subframes (including n + k subframes)_f+n_sf) mod2 ═ c, or (10 n)_f+n_sf) mod4 ═ c, or (10 n)_f+n_sf) C sub-modGAnd sending ACK/NACK on the frame, wherein G is time domain scheduling granularity. k is a preset value, e.g. for FDD, k is 4.

Preferred embodiment eight:

the present embodiment presents a method of resource allocation. The resource allocation should include at least the following:

1) frequency domain resources:

for example, for a sub-carrier supporting PUSCH transmission under a single tone, assuming that the sub-carrier width is 3.75KHz, a total of 12 × 4 ═ 48 sub-carriers are available in the frequency domain, and a 6-bit indication is required. In order to reduce the overhead of resource allocation, the total number of subcarriers available for transmitting information may be configured by using higher layer signaling, for example, when 8 subcarriers of 3.75KHz on both sides of the bandwidth are configured to the UE, the subcarriers allocated to the UE may be indicated by 3 bits. The number indices may be in order of increasing or decreasing frequency, or in order from both sides toward the center. To reduce waste, the 3.75KHz sub-carrier and the 15KHz sub-carrier in the system should have a guard band, such as 1 or 2 3.75KHz sub-carriers. Another configuration is that the eNB may configure several 15KHz subcarriers for the UE, which may be represented by 4 bits since the system may include 12 subcarriers altogether. According to the configured subcarrier position of 15KHz, the UE transmits each 15KHz area as 4 subcarriers of 3.75KHz, and understands several configured subcarriers at the edge position as guard bands, and when the resource transmitted by the UE is implicit mapping, the UE should map on the subcarriers outside the guard bands. For example, assuming that all uplink subcarriers are numbered 0, 1, … … 11 in sequence from lowest frequency to highest frequency, eNB allocates 15KHz subcarriers #0 and #1 to UE as the transmission range of 3.75KHz of UE, and corresponds to 8 subcarriers of 3.75KHz in total, two subcarriers of 3.75KHz adjacent to 15KHz subcarrier #2 are used as guard bands, and other 6 subcarriers of 3.75KHz are used for transmission, for the case of implicit mapping, the total number of transmitted subcarriers of 3.75KHz is 6, and the mapping formula should calculate by substituting 6. Preferably, the 3.75KHz transmission range configured by the eNB to the UE should be concentrated on one side of the bandwidth as much as possible, so as to reduce the frequency band occupied by the guard band. For example, the eNB allocates the two 15KHz subcarriers with the lowest frequency to the UE as the 3.75KHz transmission range of the UE. The two 3.75KHz subcarriers with the highest frequency are guard bands.

2) Time domain resources:

the time domain resources include a time domain scheduling granularity and a number of time domain scheduling granularities of the time domain allocation. The time domain scheduling granularity may be preset, for example, the time domain scheduling granularity is 48 subframes, or may be notified by the eNB, for example, the eNB selects one from a set to notify the UE, and may notify the UE with RRC signaling or SIB or DCI, where the set is notified by the eNB, for example, notified by RRC signaling or SIB, or is preset. The number of time domain scheduling granularity of the time domain allocation may be preset, for example, 8, or may be notified by the eNB, and may be notified by RRC signaling or SIB or DCI.

The time domain resource may also be obtained in a preset manner, for example, a code rate is given, or the time domain resource is calculated according to the TBS size and a code rate corresponding to the coverage level and/or the working scenario, where the code rate may be preset, for example, 1/3, or configured for the eNB.

3) The number of repetitions:

may be indicated by DCI or RRC, or implicitly derived from coverage level and/or operating scenario.

The information needing to be configured can also be subjected to joint coding, and the number of bits of resource allocation is reduced.

Or, the information may have a preset corresponding relationship, and the indicated bit number may be reduced. For example, the MCS and the time domain resource granularity have a preset corresponding relationship, and for example, the larger the MCS is, the larger the time domain resource granularity is. Or the TBS and the time domain resource granularity have a preset corresponding relationship, the larger the TBS, the larger the time domain resource granularity, for example, when the TBS is smaller than a threshold, the time domain resource granularity is 48 subframes, otherwise, it is 96 subframes. In this way, the same number of bits may be used to indicate different time domain resources.

Optionally, different subcarrier locations correspond to different time domain scheduling granularity/repetition times. For example, assume that 3.75KHz subcarriers are numbered from 0, starting with the lowest frequency, that subcarriers 0-3 correspond to 4 repetitions, and that subcarriers 4-7 correspond to 8 repetitions. When the repetition number distributed to the UE by the eNB is 4, the DCI in the scheduling grant sent by the eNB to the UE indicates one subcarrier in subcarriers 0-3.

Optionally, the subframe/CCE where the downlink control information for scheduling the PUSCH/PDSCH is located has a preset correspondence with the subcarrier allocated to the UE, for example, when the last subframe where the downlink control information is located is an even number, the subcarrier corresponds to 0 to 3, otherwise, the subcarrier corresponds to 4 to 7.

Optionally, the PRACH resource and the subcarrier where the Msg3 is located have a preset corresponding relationship, for example, if the subcarrier where the PRACH is located is an odd number of subcarriers, the corresponding subcarrier is 0 to 3, otherwise, the corresponding subcarrier is 4 to 7. Further, the sub-carrier where the Msg3 is located may also have a corresponding relationship with the sub-frame where the PRACH is located.

The preferred embodiment is nine:

on a cell-specific SRS subframe, the action of the UE includes one of:

the symbols are continuously transmitted, because a single tone scene is generally used in a coverage enhancement mode, and the signals are weak, so that the continuous transmission has little influence on the SRS of the legacy UE.

Or, a symbol overlapping with the cell-specific SRS subframe is dropped, for example, if a symbol has a part overlapping with the SRS subframe, the symbol is abandoned.

Or, for the symbol overlapped with the cell-specific SRS subframe, the part of the symbol overlapped with the SRS subframe is knocked out, and the rest part is still transmitted.

Preferred embodiment ten:

the network device determines the subcarrier spacing for transmission based on the device type and/or the transmission mode, which is eNB configured. The device type includes support for multione and/or single-tone. The transmission mode may also include a multione and/or a single-tone, for example, the eNB configures the UE to use a single-tone mode, i.e. to use 3.75KHz for transmission, or the transmission mode is also selected by the network device.

The preferred embodiment eleven:

in this embodiment, it is assumed that the downlink subcarrier width is 15KHz and the uplink subcarrier width is 1/N × 15 KHz.

For a half-duplex FDD system, when a UE needs to switch from receiving to transmitting, the UE uses the last period of a downlink subframe immediately before an uplink subframe as a guard period (guard period), and within the guard period, the UE does not receive a downlink signal. For example, if the UE receives the PDSCH in subframe # n and needs to transmit the PUSCH in subframe # n +1, the UE does not receive signals in the last period of subframe # n. Or, the UE takes the first period of time of the uplink subframe immediately after the downlink subframe as the guard interval. For example, if the UE receives the PDSCH in subframe # n and needs to transmit the PUSCH in subframe # n +1, the UE does not transmit a signal for the first period of time in subframe # n + 1. Further, the starting position of the UE for sending the PUSCH may be the first subframe after subframe # N +1, or a subframe satisfying N/2 × m or N × m, where m is a positive integer.

When the UE needs to switch from transmission to reception, the UE takes the initial period of time of the downlink subframe immediately after the uplink subframe as a guard period (guard period), and the UE does not receive the downlink signal within the guard period. For example, if the UE transmits PUSCH in subframe # n and needs to receive PDSCH in subframe # n +1, the UE does not receive signals for the first period of time in subframe # n + 1. Or, the UE takes the last period of time of the uplink subframe immediately before the downlink subframe as the guard interval. For example, if the UE transmits PUSCH in subframe # n and needs to receive PDSCH in subframe # n +1, the UE does not transmit signals for the last period of time in subframe # n.

Preferred embodiment twelve:

according to the symbol division in the above embodiment, the sub-frame definition can be performed again when the sub-carrier width is 1/N × 15KHz, N ∈ {2,3,4,5,6 }. In this embodiment, the redefined subframe is referred to as a first subframe.

A first subframe is composed of the symbols, and a length of the first subframe may be one of:

is an existing subframe, i.e., a subframe of 1 ms.

Alternatively, the N/2 xk subframes may be continuous or discontinuous, as discussed below.

Or, for N x k sub-frames,

or, in the TDD system, the subframes are consecutive uplink subframes or consecutive downlink subframes in a downlink-to-uplink switching period. For example, for an uplink-downlink ratio #0, a downlink-to-uplink switching period has 3 consecutive uplink subframes, and the first subframe is the three subframes.

Or, in the TDD system, the switching period is an integral multiple of the switching period from the downlink to the uplink. If the downlink-to-uplink transition period is 5 subframes, and the first subframe refers to a physical subframe, the symbols used for uplink transmission in the first subframe may be symbols obtained by dropping the remaining symbols except for the uplink subframe from the symbols determined by the 5 subframes in the downlink-to-uplink transition period in the manner of the foregoing embodiment. Alternatively, the symbols for uplink transmission in the first subframe are the symbols determined by the method of the foregoing embodiment for the uplink subframe in the downlink-to-uplink conversion period.

Or 5k subframes. If the first subframe refers to a physical subframe, for example, 5 subframes, the symbols used for uplink transmission in the first subframe may be symbols determined by the manner of the foregoing embodiment for 5 subframes, and the remaining symbols except the uplink subframe are discarded. Alternatively, the symbols for uplink transmission in the first subframe are the symbols determined by the method of the foregoing embodiment for the uplink subframe of the 5 subframes.

Or 10k subframes.

And k is a positive integer, and the subframe is a physical subframe or an available subframe. The following examples are given. For example, the first subframe definition may be the same as that of the prior art, i.e. 1ms, and each first subframe may containAlternatively, the first subframes may be (N/2) ms, each of which may contain 6 or 7 symbols, or (N) ms, each of which contains 12 or 14 symbols. The length of the symbols is as in the above embodiments. Fig. 3 is a diagram illustrating a frame structure when a subcarrier width is 3.75KHz according to a preferred embodiment of the present invention, and as shown in fig. 3, a first subframe is 1ms in length and each subframe includes 3 symbols. A frame may be defined on the basis of the first subframe, for example 10 ms.

Fig. 4 is another structure diagram of a sub-frame when a sub-carrier width is 3.75KHz according to the preferred embodiment of the present invention, as shown in fig. 4, a length of a first sub-frame is 4ms, and a frame can be defined on the basis of the first sub-frame, such as 40ms or 48 ms.

The definition of the first subframe in TDD is given below. In TDD, 1ms subframe may still be taken as the first subframe, or 2 or 4 uplink subframes may be grouped into the first subframe.

Fig. 5 is a schematic structural diagram of a first subframe in TDD uplink/downlink configuration #1 according to a preferred embodiment of the present invention, and as shown in fig. 5, 4 uplink subframes within 10ms are used as the first subframe.

In fig. 5, every two subframes contain 7 symbols. It is also possible to have 3 symbols per subframe, so that the first subframe corresponds to 12 symbols.

Fig. 6 is a schematic structural diagram of a first subframe in TDD uplink/downlink configuration #2 according to a preferred embodiment of the present invention, and as shown in fig. 6, 4 uplink subframes within 20ms are used as the first subframe. Each subframe contains 3 symbols.

Fig. 7 is a schematic structural diagram of a first subframe in TDD uplink/downlink configuration #0 according to a preferred embodiment of the present invention, and as shown in fig. 7, 3 uplink subframes within 10ms are used as the first subframe. The first subframe contains 10 symbols. Or the first subframe may also contain 9 symbols, each subframe corresponding to 3 symbols.

Fig. 8 is a schematic structural diagram of another first subframe in TDD uplink/downlink configuration #0 according to a preferred embodiment of the present invention, and as shown in fig. 8, 4 uplink subframes are used as the first subframe. The first subframe contains 12 symbols. And the following uplink subframes are taken as the first subframes every 4, and the like.

The definition of the first subframe of other configurations may be similarly given. In practical applications, the definition of the first subframe is not limited to the above example. The format of the symbols in the sub-frame is one of the ways in the previous embodiments.

The preferred embodiment thirteen:

in this embodiment, x subframes include n symbols, and x is preset or notified by the eNB. Let the length of the symbol be T, which includes the CP and the data portion. If there is a remainder in the x subframes except for the length of n symbols, the remainder may be used as a special subframe, for example, at the beginning or end of the x subframes, for transmitting some special signals, for example, for legacy UEs to transmit SRS, etc. Or the remaining part may be located at the end of the subframe as a guard interval, which is not used for transmitting signals. Alternatively, the remaining portion is part of CP of one symbol, or part of CP of a plurality of symbols, e.g. divided equally to the first few symbols.

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 invention 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 invention.

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 a plurality of processors.

The embodiment of the invention also provides a storage medium. Optionally, in this embodiment, the storage medium may be configured to store program codes for executing the method steps of the above embodiment:

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

Optionally, in this embodiment, the processor executes the method steps of the above embodiments according to the program code stored in the storage medium.

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.

It will be apparent to those skilled in the art that the modules or steps of the present invention 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. Thus, the present invention is not limited to any specific combination of hardware and software.

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

Claims

1. A method for transmitting information, comprising

2. The method according to claim 1, wherein the symbol is determined by means of a preset one of:

each of the subframes contains n symbols;

starting from a preset subframe or a starting subframe for transmitting the information, the x subframes comprise n symbols, wherein n is a preset positive integer, 2 x is a positive integer greater than or equal to 1, the subframe is a physical subframe, or the subframe is a usable subframe.

3. The method according to claim 1, wherein the symbol is determined by means of a preset one of:

each of the sub-frames includesA symbol;

4. The method according to claim 2, wherein the symbol is determined by means of a preset one of:

each subframe comprises n symbols, wherein one of the n symbols has a Cyclic Prefix (CP) length ofA plurality of sampling points, the n symbols except the other symbols of the one symbol have CP lengths ofSampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each x subframes comprise n symbols, wherein the CP length of one symbol in the n symbols isA plurality of sampling points, the n symbols except the other symbols of the one symbol have CP lengths ofA data portion of the symbol having a length f_sA/Δ f sample points, f_sTo sample frequency, f_sIn Hz; wherein,indicating a rounding down and mod a modulo operation.

5. The method according to any one of claims 1 to 4, characterized in that the symbol is determined by means of a preset one of the following:

starting from a preset subframe or a starting subframe for transmitting the information, each 2 subframes comprise 7 symbols, wherein the CP length of one symbol in the 7 symbols is 40 sampling points, and the CP lengths of the other symbols except the one symbol in the 7 symbols are 36 sampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each 3 subframes contain 11 symbols, wherein the CP length of one symbol in the 11 symbols is 18 sampling points, and the CP lengths of the 11 symbols except the other symbols of the one symbol are 11 sampling points;

6. The method according to any one of claims 1 to 4, wherein the symbol is determined by means of a preset one of:

starting from a preset subframe or a starting subframe for transmitting the information, each 2 subframes contain 7 symbols, wherein the CP length of one symbol in the 7 symbols is 8 sampling points, and the CP lengths of the other symbols except the one symbol in the 7 symbols are 4 sampling points;

starting from a preset subframe or a starting subframe for transmitting the information, each 3 subframes contain 11 symbols, wherein the CP length of one symbol in the 11 symbols is 6 sampling points, and the CP lengths of the 11 symbols except the other symbols of the one symbol are 1 sampling point;

7. The method of claim 6,

in a Time Division Duplex (TDD) system, the symbol for uplink transmission is a symbol contained in a region formed by an uplink pilot time slot (UpPTS) and an uplink subframe, or a symbol contained in the region of the uplink subframe;

8. The method of claim 1,

in a TDD system, the symbols are determined by the number of consecutive uplink subframes within a switching period.

9. The method of claim 2,

in the TDD system, starting from the preset subframe as the first uplink subframe or the first downlink subframe in the switching period, x is equal to the number of consecutive uplink subframes or the number of consecutive downlink subframes, and the subframe is a physical subframe or an available subframe.

10. The method according to claim 1 or 9,

under the condition that the subcarrier width delta f is 3.75KHz, in a TDD system, in a conversion period, if the number of continuous uplink subframes is 1, the subframe comprises 3 symbols, and the CP length of each symbol is 128 sampling points;

in a conversion period, if the number of continuous uplink subframes is 2, each subframe in the 2 uplink subframes contains 3 symbols, and the CP length of each symbol is 128 sampling points; or, the 2 uplink subframes include 7 symbols, where a CP length of one symbol of the 7 symbols is 40 sampling points, and CP lengths of the 7 symbols excluding other symbols of the one symbol are 36 sampling points;

in a conversion period, if the number of continuous uplink subframes is 3, each subframe in the 3 uplink subframes contains 3 symbols, and the CP length of each symbol is 128 sampling points; or, the 3 uplink subframes include 10 symbols, and the CP length of each symbol is 64 sampling points, or the 3 uplink subframes include 11 symbols, where the CP length of one of the 10 symbols is 18 sampling points, and the CP lengths of the 10 symbols excluding the other symbols of the one symbol are 11 sampling points, where the sampling frequency f is_sIs 1.92 MHz.

11. The method according to claim 1 or 9,

in a TDD system, in a switching period, if the number of continuous uplink subframes is 1, the uplink subframe comprises 3 symbols, and the CP length of each symbol is 16 sampling points;

in a conversion period, if the number of continuous uplink subframes is 2, each subframe in the 2 uplink subframes contains 3 symbols, and the CP length of each symbol is 16 sampling points; or, the 2 uplink subframes include 7 symbols, where a CP length of one symbol of the 7 symbols is 8 sampling points, and CP lengths of the 7 symbols excluding other symbols of the one symbol are 4 sampling points;

in a conversion period, if the number of continuous uplink subframes is 3, each subframe in the 3 uplink subframes contains 3 symbols, and the CP length of each symbol is 16 sampling points; or, the 3 uplink subframes include 10 symbols, and the CP length of each symbol is 8 sampling points, or the 3 subframes include 11 symbols, where the CP length of one of the 11 symbols is 6 sampling points, and the CP lengths of the 11 symbols excluding the other symbols of the one symbol are 1 sampling point, where the sampling frequency f is_sIs 240 KHz.

12. The method of claim 1,

in the TDD system, the UpPTS is used as a part of a CP of a first symbol of an uplink subframe next to the UpPTS.

13. The method of claim 1, comprising

In the TDD system, one or more symbols are contained in a region formed by the UpPTS and one or more uplink subframes adjacent to the UpPTS.

14. The method of claim 1, wherein the time-domain scheduling granularity G of the information is determined by at least one of:

N；

a transport block size, TBS, of the information;

a Modulation and Coding Scheme (MCS) of the information;

scheduling the time domain and/or frequency domain position of a random access response RAR of the downlink control channel/random access of the information, or scheduling a control channel element CCE corresponding to the downlink control channel of the information or a physical random access channel PRACH resource at the time of random access;

the number of repetitions of the information;

a resource to transmit the information.

15. The method of claim 14,

the time domain scheduling granularity G of the information is one of the following:

n/2 xk subframes;

n × k subframes;

n × 12k subframes;

16. The method of claim 14,

the time domain scheduling granularity G is determined by a duplex mode of the LTE system, the duplex mode including frequency division duplex FDD and TDD.

17. The method of claim 1,

the starting subframe of the information satisfies one of:

t mod(N/2)＝c；

t mod N＝c；

t mod G＝c；

18. The method of claim 1,

in the case that the subframe is a cell-specific Sounding Reference Signal (SRS) subframe, the manner of processing the symbol includes one of:

transmitting the symbol;

not transmitting symbols that overlap with the cell-specific SRS subframe;

19. The method of claim 1,

and determining the transmission subcarrier interval according to the equipment type and/or the transmission mode, wherein the transmission mode is the transmission mode configured by the base station, or the transmission mode is the transmission mode selected by the network equipment.

20. The method according to any one of claims 1 to 3,

the preset subframe consists of the symbols, and the length of the preset subframe is one of the following lengths:

n/2 xk subframes;

n × k subframes;

in a TDD system, the number of continuous uplink subframes or continuous downlink subframes in a conversion period from downlink to uplink;

in a TDD system, the switching period is integral multiple of the switching period from downlink to uplink;

5k subframes;

is 10k subframes;

and k is a positive integer, and the subframe is a physical subframe or an available subframe.

21. The method of claim 1, wherein the step of removing the metal oxide layer comprises removing the metal oxide layer from the metal oxide layer

And when the information is a message III in random access, the subcarrier corresponding to the message III is determined by the PRACH resource and/or the resource indication information in the scheduling information.

22. The method of claim 1, wherein the step of removing the metal oxide layer comprises removing the metal oxide layer from the metal oxide layer

And if the subframe where the symbol is located is two discontinuous subframes, the symbol is not used for uplink or downlink transmission.

23. The method of claim 1, wherein the step of removing the metal oxide layer comprises removing the metal oxide layer from the metal oxide layer

The time domain scheduling granularity of the information is integral multiple of the time domain resource corresponding to the PRACH, or the time domain resource corresponding to the PRACH is integral multiple of the time domain scheduling granularity of the information.

24. A device for transmitting information, characterized in that,