WO2017193714A1 - Channel transmission method and device - Google Patents

Abstract

Provided are a channel transmission method and device. The channel transmission method of a terminal side comprises: receiving a downlink control channel; determining, according to the downlink control channel, a first frequency domain resource for transmitting data information carried on a shared channel; determining a second frequency domain resource for transmitting a pilot frequency of the shared channel; the second frequency domain resource being one or more sub-bands in A sub-bandwidths obtained by pre-dividing the bandwidth of a system, A being an integer greater than one; and transmitting, on the first frequency domain resource, data information carried on the shared channel, and transmitting, on the second frequency domain resource, the pilot frequency of the shared channel.

Description

Channel transmission method and device

Cross-reference to related applications

Priority is claimed on Chinese Patent Application No. 201610319671.3, filed on Jan. 13, 2016, in

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a channel transmission method and apparatus.

Background technique

The FDD (Frequency Division Duplex) system of LTE (Long Term Evolution) in the related art uses frame structure type 1 (FS1), and its structure is as shown in FIG. 1 . In the FDD system, the uplink and downlink transmissions use different carrier frequencies, and both the uplink and downlink transmissions use the same frame structure. On each carrier, a 10ms-length radio frame contains 10 1ms subframes, each sub-frame is divided into 0.5ms long time slots, and TTI (Transmission Time Interval) for uplink and downlink data transmission. The duration is 1ms.

The TDD (Time Division Duplex) system of LTE in the related art uses frame structure type 2 (FS2), and its structure is as shown in FIG. 2. In a TDD system, uplink and downlink transmissions use different subframes or different time slots on the same frequency. Each 10 ms radio frame in FS2 consists of two 5 ms half frames, each of which contains five subframes of 1 ms length. The sub-frames in FS2 are classified into three types: downlink sub-frames, uplink sub-frames, and special sub-frames. Each special sub-frame consists of a downlink transmission time slot (DwPTS, Downlink Pilot Time Slot), a guard interval (GP, Guard Period), and The uplink transmission time slot (UpPTS, Uplink Pilot Time Slot) is composed of three parts. The DwPTS can transmit the downlink pilot, the downlink service data, and the downlink control signaling; the GP does not transmit any signal; the UpPTS only transmits the random access and sounding reference signal (SRS), and cannot transmit the uplink service or the uplink control information. . Each field includes at least one downlink subframe and at least one uplink subframe, and at most one special subframe. The configuration of the seven types of uplink and downlink subframes executed in FS2 is shown in Table 1.

Table 1

The data and pilot (ie, reference symbols, or DMRS (Demodulation Reference Signal)) of the LTE PUSCH (Physical Uplink Shared Control Channel) in one subframe are used for data solution. The structure is shown in Figure 3 and Figure 4. Under the conventional CP (Cyclic Prefix), as shown in FIG. 3, the fourth symbol in each slot in each subframe is used to transmit pilots, and the remaining symbols are used to transmit data in the extended CP ( Under Cyclic Prefix, the third symbol in each slot in each subframe is used to transmit pilots, and the remaining symbols are used to transmit data. The uplink pilot is a terminal-specific pilot, which is generated according to the actual bandwidth size scheduled by the PUSCH. In order to support the MU-MIMO (Multi-User Multiple-Input Multiple-Output), each column of pilots can achieve the same resource sharing by cyclically shifting the same pilot base sequence. The orthogonal transmission of the pilots of the plurality of terminals, so that the receiving end can distinguish the pilots of different terminals by cyclic shift.

In the LTE system, the channel transmission in the related art is defined in units of subframes. When the PUSCH is transmitted with a TTI (s-TTI) length shorter than 1 ms, if the DMRS still occupies a column symbol in the s-TTI For transmission, there is a DMRS overhead of at least one column of symbols in each s-TTI, and the overhead is too large. In order to reduce the DMRS overhead, a simple way can share the same column DMRS in multiple s-TTI transmissions in one subframe or slot; however, the multiple s-TTI transmissions have independent scheduling information, and the scheduling bandwidth may only be partially Overlap, therefore, if the DMRS sequence is generated according to the respective scheduling bandwidth and the corresponding DMRS cyclic shift (CS, Cyclic Shift) according to the definition in the mechanism in the related art, when mapping to the same symbol, due to scheduling bandwidth Partially overlapping, the DMRS sequences are not aligned, and the orthogonality between DMRS sequences corresponding to different PUSCHs mapped on the same frequency domain resource will be destroyed. That is, as shown in FIG. 5, the DMRSs corresponding to s-TTI1 and s-TTI2 transmitted in the dotted line 1 and the broken line 2 overlap only on part of the frequency domain resources, causing the orthogonality of the DMRS to be destroyed, thereby making it impossible for the base station to distinguish s. - DMRS of TTI1 and s-TTI2.

Summary of the invention

The purpose of the present disclosure is to provide a channel transmission method and apparatus, which solves the problem that the orthogonality of pilots existing when a plurality of segment transmission time intervals share the same column pilot are broken in the related art.

In order to achieve the above object, an embodiment of the present disclosure provides a channel transmission method for a terminal side, including:

Receiving a downlink control channel, where the downlink control channel is used to carry scheduling information of the shared channel;

Determining, according to the downlink control channel, a first frequency domain resource for transmitting data information carried on the shared channel;

Determining, according to a pre-agreed or configuration signaling indication, a second frequency domain resource for transmitting a pilot of the shared channel; wherein the second frequency domain resource is one of A sub-bandwidths obtained by pre-dividing the system bandwidth Sub-bandwidth or multiple sub-bandwidths, A is an integer greater than one;

Transmitting data information carried on the shared channel on the first frequency domain resource, and transmitting pilot of the shared channel on the second frequency domain resource.

The transmission time interval TTI length of the shared channel is less than 1 ms; and/or,

The downlink control channel has a TTI length of less than 1 ms.

Wherein each of the sub-bandwidths includes the same number or a different number of resource blocks; or

Each of the sub-bands includes the same number or a different number of sub-carriers; or,

Each of the sub-bandwidths includes the same number or a different number of resource units; wherein

The resource unit is one subcarrier on a predefined symbol, or a plurality of subcarriers in a frequency domain on one symbol.

The step of determining the second frequency domain resource for transmitting the pilot according to the indication of the configuration signaling includes:

The configuration signaling indicates one or more sub-bands of the pre-divided A sub-bandwidths as the second frequency domain resource.

Wherein, according to a pre-agreed, determining a second frequency domain for transmitting pilots of the shared channel The steps of the source include:

And determining, according to a relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths, a second frequency domain resource used for transmitting the pilot.

The step of determining the second frequency domain resource for transmitting the pilot according to the relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths includes:

If the first frequency domain resource is included in one sub-band of the A sub-bandwidth, determining that the second frequency domain resource is the one sub-band that includes the first frequency domain resource;

Determining, when the first frequency domain resource is included in two or more sub-bandwidths of the A sub-bandwidths, the second frequency domain resource is the two that include the first frequency domain resource Or more than two sub-bandwidths.

And before the transmitting the pilot of the shared channel on the second frequency domain resource, the channel transmission method further includes:

And generating, according to the base sequence and the cyclic shift value and/or the orthogonal sequence, a pilot sequence corresponding to the size of the second frequency domain resource, where the pilot sequence is a pilot of the shared channel.

When the second frequency domain resource is a plurality of sub-bands of the A sub-bands obtained by pre-dividing the system bandwidth, the channel transmission is performed before the pilot of the shared channel is transmitted on the second frequency domain resource. The method also includes:

Generating a pilot sequence corresponding to each sub-bandwidth according to a base sequence of each sub-bandwidth and a cyclic shift value and/or an orthogonal sequence; wherein the pilot sequences of the plurality of sub-bands constitute pilots of the shared channel ;or,

Generating a first pilot sequence according to a base sequence of one of the plurality of sub-bandwidths and a cyclic shift value and/or an orthogonal sequence; determining a pilot sequence of other sub-bandwidths is the same as the first pilot sequence A plurality of identical first pilot sequences form pilots of the shared channel.

Wherein, the cyclic shift value and/or the orthogonal sequence are obtained as follows:

Determining a cyclic shift value of the pilot according to a cyclic shift indication carried in the downlink control channel or configuration information of a pre-agreed or high layer signaling, or a cyclic shift value of the pilot calculated according to an agreed formula ;and / or,

Determining an orthogonal sequence of the pilot according to an orthogonal sequence indication carried in the downlink control channel or configuration information of a pre-agreed or high layer signaling, or the calculated according to an agreed formula The orthogonal sequence of the pilots.

The configuration signaling is an indication field in the high layer signaling or the scheduling information of the downlink control channel.

The embodiment of the present disclosure further provides a channel transmission method for a base station side, including:

Determining, by the terminal, a first frequency domain resource for transmitting data information that is carried by the terminal on the shared channel, and transmitting, to the terminal, a downlink control channel, where the downlink control channel is used to carry scheduling information of the shared channel, the first frequency The domain resource is included in the scheduling information;

Determining, by the terminal, a second frequency domain resource for transmitting the pilot of the shared channel, where the second frequency domain resource is one of a sub-bandwidth or a plurality of sub-bandwidths obtained by pre-dividing the system bandwidth, A is an integer greater than one;

Receiving, by the terminal, data information carried by the terminal on the shared channel, and receiving, by using the second frequency domain, a pilot of the shared channel sent by the terminal.

The transmission time interval TTI length of the shared channel is less than 1 ms; and/or,

The downlink control channel has a TTI length of less than 1 ms.

Wherein each of the sub-bandwidths includes the same number or a different number of resource blocks; or

Each of the sub-bands includes the same number or a different number of sub-carriers; or,

Each of the sub-bandwidths includes the same number or a different number of resource units; wherein

The resource unit is one subcarrier on a predefined symbol, or a plurality of subcarriers in a frequency domain on one symbol.

The step of determining a second frequency domain resource used by the terminal to transmit the pilot of the shared channel includes:

Determining, according to a pre-agreed, a second frequency domain resource for transmitting, by the terminal, the pilot of the shared channel; or

Determining, by the terminal, the second frequency domain resource of the pilot of the shared channel, and notifying the second frequency domain resource to the terminal by using configuration signaling, where the configuration signaling indicates the pre-divided One or more sub-bandwidths of the A sub-bands are used as the second frequency domain resource.

The step of determining, according to a predetermined agreement, a second frequency domain resource used by the terminal to transmit the pilot of the shared channel includes:

According to the relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths, Determining a second frequency domain resource for transmitting pilots of the shared channel.

The determining, according to the relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths, determining the second frequency domain resource for transmitting the pilot of the shared channel, includes:

If the first frequency domain resource is included in one sub-band of the A sub-bandwidth, determining that the second frequency domain resource is the one sub-band that includes the first frequency domain resource;

Determining, when the first frequency domain resource is included in two or more sub-bandwidths of the A sub-bandwidths, the second frequency domain resource is the two that include the first frequency domain resource Or more than two sub-bandwidths.

The channel transmission method further includes: before receiving the pilot of the shared channel on the second frequency domain resource, the channel transmission method further includes:

Determining the pilot of the shared channel is a pilot sequence corresponding to a size of the second frequency domain resource generated according to a base sequence and a cyclic shift value and/or an orthogonal sequence.

Wherein, when the second frequency domain resource is a plurality of sub-bands of the plurality of sub-bands obtained by pre-dividing the system bandwidth, the channel transmission is performed before receiving the pilot of the shared channel on the second frequency domain resource. The method also includes:

Determining that the pilot of the shared channel is composed of pilot sequences respectively corresponding to multiple sub-bandwidths, and the pilot sequence of each sub-bandwidth is generated according to a base sequence of each sub-bandwidth and a cyclic shift value and/or an orthogonal sequence. a pilot sequence corresponding to each sub-bandwidth; or,

Determining that the pilot of the shared channel is composed of the same pilot sequence of multiple sub-bandwidths, and the same pilot sequence is based on a base sequence of one of the plurality of sub-bandwidths and a cyclic shift value and/or Or a first pilot sequence generated by an orthogonal sequence.

The cyclic shift value is determined according to a cyclic shift indication carried in the downlink control channel or configuration information of a pre-agreed or high layer signaling, or calculated according to an agreed formula; and/or,

The orthogonal sequence is determined according to the orthogonal sequence indication carried in the downlink control channel or the configuration information of the pre-agreed or high layer signaling, or is calculated according to an agreed formula.

The configuration signaling is an indication field in the high layer signaling or the scheduling information of the downlink control channel.

The embodiment of the present disclosure further provides a channel transmission apparatus for the terminal side, including:

a channel receiving module, configured to receive a downlink control channel, where the downlink control channel is used to carry scheduling information of the shared channel;

a first resource determining module, configured to determine, according to the downlink control channel, a first frequency domain resource for transmitting data information carried on the shared channel;

a second resource determining module, configured to determine, according to an indication of a pre-agreed or configuration signaling, a second frequency domain resource for transmitting a pilot of the shared channel, where the second frequency domain resource is a pre-divided system bandwidth One sub-bandwidth or multiple sub-bandwidths of the obtained A sub-bandwidths, where A is an integer greater than one;

And a transmission module, configured to transmit data information carried on the shared channel on the first frequency domain resource, and transmit a pilot of the shared channel on the second frequency domain resource.

The transmission time interval TTI length of the shared channel is less than 1 ms; and/or,

The downlink control channel has a TTI length of less than 1 ms.

Wherein each of the sub-bandwidths includes the same number or a different number of resource blocks; or

Each of the sub-bands includes the same number or a different number of sub-carriers; or,

Each of the sub-bandwidths includes the same number or a different number of resource units; wherein

The resource unit is one subcarrier on a predefined symbol, or a plurality of subcarriers in a frequency domain on one symbol.

The second resource determining module includes:

And a first resource determining submodule, configured to indicate, by using the configuration signaling, one or more sub-bands of the pre-divided A sub-bandwidths as the second frequency domain resource.

The second resource determining module includes:

And a second resource determining submodule, configured to determine, according to a relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths, a second frequency domain resource used for transmitting the pilot.

The second resource determining submodule includes:

a first resource determining unit, configured to determine, when the first frequency domain resource is included in one sub-band of the A sub-bandwidth, the second frequency domain resource is a device that includes the first frequency domain resource Describe a sub-bandwidth;

a second resource determining unit, configured to determine that the second frequency domain resource is the first one if the first frequency domain resource is included in two or more sub-bandwidths of the A sub-bandwidths Frequency domain The two or more sub-bandwidths of the resource.

The channel transmission device further includes:

a first pilot determining module, configured to generate, according to a base sequence and a cyclic shift value and/or an orthogonal sequence, a pilot sequence corresponding to a size of the second frequency domain resource, where the pilot sequence is the shared channel Pilots.

The channel transmission device further includes:

a second pilot determining module, configured to: when the second frequency domain resource is a plurality of sub-bands of the A sub-bands obtained by pre-dividing the system bandwidth, according to a base sequence of each sub-bandwidth and a cyclic shift value and/or positive Generating a pilot sequence corresponding to each sub-bandwidth; wherein the pilot sequences of the plurality of sub-bandwidths form pilots of the shared channel; and/or

a third pilot determining module, configured to: when the second frequency domain resource is a plurality of sub-bands of the plurality of sub-bandwidths obtained by pre-dividing the system bandwidth, according to a base sequence and a loop of one of the plurality of sub-bandwidths Transmitting a first pilot sequence by shifting values and/or orthogonal sequences; determining that the pilot sequences of the other sub-bandwidths are identical to the first pilot sequence, and the plurality of identical first pilot sequences constituting the shared channel Pilot.

The channel transmission device further includes:

a cyclic shift value determining module, configured to determine a cyclic shift value of the pilot according to a cyclic shift indication carried in the downlink control channel or configuration information of a pre-agreed or high layer signaling, or calculated according to an agreed formula a cyclic shift value of the pilot; and/or,

And an orthogonal sequence determining module, configured to determine, according to the orthogonal sequence indication carried in the downlink control channel, or the configuration information of the pre-agreed or high layer signaling, the orthogonal sequence of the pilot, or the calculated according to the convention formula The orthogonal sequence of the pilots.

The configuration signaling is an indication field in the high layer signaling or the scheduling information of the downlink control channel.

The embodiment of the present disclosure further provides a channel transmission apparatus for a base station side, including:

a channel sending module, configured to determine a first frequency domain resource used for transmitting data information carried by the terminal on the shared channel, and send a downlink control channel to the terminal, where the downlink control channel is used to carry scheduling information of the shared channel The first frequency domain resource is included in the scheduling information;

a third resource determining module, configured to determine, for the terminal, to transmit a pilot of the shared channel a second frequency domain resource, wherein the second frequency domain resource is one of a sub-bandwidth or a plurality of sub-bandwidths obtained by pre-dividing the system bandwidth, and A is an integer greater than one;

a receiving module, configured to receive, on the first frequency domain resource, data information that is sent by the terminal and that is carried on the shared channel, and receive, by using the second frequency domain, the shared channel that is sent by the terminal Pilot.

The transmission time interval TTI length of the shared channel is less than 1 ms; and/or,

The downlink control channel has a TTI length of less than 1 ms.

Wherein each of the sub-bandwidths includes the same number or a different number of resource blocks; or

Each of the sub-bands includes the same number or a different number of sub-carriers; or,

Each of the sub-bandwidths includes the same number or a different number of resource units; wherein

The resource unit is one subcarrier on a predefined symbol, or a plurality of subcarriers in a frequency domain on one symbol.

The third resource determining module includes:

a third resource determining submodule, configured to determine, according to a predetermined agreement, a second frequency domain resource used by the terminal to transmit the pilot of the shared channel; and/or,

a fourth resource determining submodule, configured to determine a second frequency domain resource used by the terminal to transmit the pilot of the shared channel, and notify the terminal of the second frequency domain resource by using configuration signaling, where the configuration The signaling indicates one or more sub-bands of the pre-divided A sub-bandwidths as the second frequency domain resource.

The third resource determining submodule includes:

And a third resource determining unit, configured to determine, according to a relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths, a second frequency domain resource used for transmitting the pilot of the shared channel.

The third resource determining unit includes:

a first resource determining subunit, configured to determine, when the first frequency domain resource is included in one subband of the A subbands, to determine that the second frequency domain resource is the first frequency domain resource The one sub-bandwidth;

a second resource determining subunit, configured to determine, when the first frequency domain resource is included in two or more subbands of the A subbands, to include the first The two or more sub-bandwidths of a frequency domain resource.

The channel transmission device further includes:

And a fourth pilot determining module, configured to determine that the pilot of the shared channel is a pilot sequence corresponding to a size of the second frequency domain resource generated according to a base sequence and a cyclic shift value and/or an orthogonal sequence.

The pilot transmission device further includes:

a fifth pilot determining module, configured to: when the second frequency domain resource is a plurality of sub-bands of the plurality of sub-bands obtained by pre-dividing the system bandwidth, determining that the pilot of the shared channel is respectively corresponding to multiple sub-bandwidths a pilot sequence, and the pilot sequence of each sub-bandwidth is a pilot sequence corresponding to each sub-bandwidth generated according to a base sequence of each sub-bandwidth and a cyclic shift value and/or an orthogonal sequence; and/or

a sixth pilot determining module, configured to: when the second frequency domain resource is a plurality of sub-bands of the plurality of sub-bandwidths obtained by pre-dividing the system bandwidth, determine that the pilot of the shared channel is the same guide of multiple sub-bandwidths The frequency sequence is constructed, and the same pilot sequence is a first pilot sequence generated according to a base sequence of one of the plurality of sub-bandwidths and a cyclic shift value and/or an orthogonal sequence.

The cyclic shift value is determined according to a cyclic shift indication carried in the downlink control channel or configuration information of a pre-agreed or high layer signaling, or calculated according to an agreed formula; and/or,

The orthogonal sequence is determined according to the orthogonal sequence indication carried in the downlink control channel or the configuration information of the pre-agreed or high layer signaling, or is calculated according to an agreed formula.

The configuration signaling is an indication field in the high layer signaling or the scheduling information of the downlink control channel.

The embodiment of the present disclosure further provides a channel transmission apparatus for a terminal side, including: a processor, a memory, and a transceiver, where:

A processor for reading a program in the memory, performing the following process:

Receiving a downlink control channel, where the downlink control channel is used to carry scheduling information of the shared channel;

Determining, according to the downlink control channel, a first frequency domain resource for transmitting data information carried on the shared channel;

Determining, according to an indication of a pre-agreed or configuration signaling, a second frequency domain resource for transmitting a pilot of the shared channel; wherein the second frequency domain resource is A obtained by pre-dividing a system bandwidth One of the sub-bandwidths or multiple sub-bandwidths, A is an integer greater than one;

Transmitting data information carried on the shared channel on the first frequency domain resource, and transmitting pilot information of the shared channel on the second frequency domain resource,

The transceiver is configured to receive and transmit data,

The processor is responsible for managing the bus architecture and the usual processing, and the memory is capable of storing the data used by the processor in performing the operations.

The embodiment of the present disclosure further provides a channel transmission apparatus for a base station side, including: a processor, a memory, and a transceiver, where:

A processor for reading a program in the memory, performing the following process:

Determining, by the terminal, a first frequency domain resource for transmitting data information that is carried by the terminal on the shared channel, and transmitting, to the terminal, a downlink control channel, where the downlink control channel is used to carry scheduling information of the shared channel, the first frequency The domain resource is included in the scheduling information;

Determining, by the terminal, a second frequency domain resource for transmitting the pilot of the shared channel, where the second frequency domain resource is one of a sub-bandwidth or a plurality of sub-bandwidths obtained by pre-dividing the system bandwidth, A is an integer greater than one;

Receiving, on the first frequency domain resource, data information that is sent by the terminal and being carried on the shared channel, and receiving, in the second frequency domain, a pilot of the shared channel that is sent by the terminal,

The transceiver is configured to receive and transmit data,

The processor is responsible for managing the bus architecture and the usual processing, and the memory is capable of storing the data used by the processor in performing the operations.

The above technical solution of the present disclosure has at least the following beneficial effects:

In the channel transmission method and apparatus of the embodiments of the present disclosure, the system bandwidth is divided into A sub-bandwidths in advance, and one sub-band or a plurality of sub-bands of the A sub-bands are used to transmit the pilot of the shared channel to ensure the frequency of data transmission. Orthogonal transmission of pilots of multiple transmissions with different domain resources but sharing pilot resources, thereby ensuring correct transmission and demodulation of data while reducing pilot overhead of short TTI transmission.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will describe the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are to be regarded as Other drawings can also be obtained from these figures. The following figures are not intended to be scaled to scale in actual dimensions, with emphasis on the subject matter of the present application.

1 is a schematic structural diagram of a frame structure 1 used in a frequency division duplex system in the related art;

2 is a schematic structural diagram of a frame structure 2 used in a time division duplex system in the related art;

3 is a schematic diagram showing a structure of a conventional CP pilot of a physical uplink shared channel in the related art;

4 is a schematic diagram showing an extended CP pilot structure of a physical uplink shared channel in the related art;

5 is a schematic diagram showing a plurality of PUSCH shared DMRS symbol positions transmitted by using a TTI length shorter than 1 ms in the related art, and destroying orthogonality between respective DMRSs;

6 is a flow chart showing the basic steps of a channel transmission method on a terminal side according to some embodiments of the present disclosure;

FIG. 7 is a flow chart showing the basic steps of a channel transmission method at the base station side according to some embodiments of the present disclosure;

FIG. 8 is a schematic diagram showing the principle of a specific entity of a channel transmission method provided by an embodiment of the present disclosure;

FIG. 9 is a structural diagram of a channel transmission apparatus on a terminal side according to some embodiments of the present disclosure;

Figure 10 is a block diagram showing a structure of a channel transmission apparatus provided by some embodiments of the present disclosure;

11 is a block diagram showing a base station side channel transmission apparatus provided by some embodiments of the present disclosure.

detailed description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described in the following description of the embodiments of the present disclosure. The embodiments are a part of the embodiments of the present disclosure, and not all of them. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without departing from the inventive scope are the scope of the disclosure.

It should be noted that in order to solve the problem when different s-TTIs share the same symbol position transmission pilot The problem of the stored pilot orthogonality is broken. The core idea of the present disclosure is that when different s-TTIs share the same symbol position transmission pilot, pilots of different s-TTIs are pre-divided according to system bandwidth in the frequency domain. One or more of the A portions are transmitted, and the data is transmitted according to the actually scheduled frequency domain resource size.

As shown in FIG. 6, some embodiments of the present disclosure provide a channel transmission method for a terminal side, including:

Step 61: Receive a downlink control channel, where the downlink control channel is used to carry the scheduling information of the shared channel, and the sharing may be an uplink shared channel or a downlink shared channel, which is not specifically limited herein.

Step 62: Determine, according to the downlink control channel, a first frequency domain resource for transmitting data information carried on the shared channel.

Step 63: Determine, according to an indication of a pre-agreed or configuration signaling, a second frequency domain resource for transmitting a pilot of the shared channel, where the second frequency domain resource is A sub-bandwidth obtained by pre-dividing a system bandwidth. One sub-bandwidth or multiple sub-bandwidths, A is an integer greater than one;

Step 64: Transmit data information carried on the shared channel on the first frequency domain resource, and transmit a pilot of the shared channel on the second frequency domain resource.

Some embodiments of the present disclosure pre-divide the system bandwidth into A sub-bandwidths, for example, the system bandwidth is 20 MHz, including 100 resource blocks, and if A is 4, the first sub-bandwidth is the 0th to 24th resource blocks. The second sub-bandwidth is the 25th to 49th resource blocks, the third sub-bandwidth is the 50th to 74th resource blocks, and the fourth sub-bandwidth is the 75th to 99th resource blocks. The above example is to divide the system bandwidth into four sub-bandwidths. It should be noted that the manner of uneven distribution is also applicable to the present application, and the manner of uneven allocation is not re-exemplified.

Since the second frequency domain resource of the pilot transmitting the shared channel is one or more of the foregoing A sub-bandwidths, the pilots of different TTIs do not overlap partially in the frequency domain, thereby ensuring sharing of the same column guide. The orthogonality of the pilots of different TTIs of the frequency ensures the correct transmission and demodulation of the data while reducing the pilot overhead of the TTI transmission.

The transmission time interval TTI length of the shared channel is less than 1 ms in some embodiments of the present disclosure; and/or the TTI length of the downlink control channel is less than 1 ms. That is, the shared channel and/or the downlink control channel uses a short TTI for channel transmission.

Further, in the foregoing embodiment of the disclosure, each of the sub-bandwidths includes the same number or a different number of resource blocks; or

Each of the sub-bands includes the same number or a different number of sub-carriers; or,

Each of the sub-bandwidths includes the same number or a different number of resource units; wherein

The resource unit is one subcarrier on a predefined symbol, or a plurality of subcarriers in a frequency domain on one symbol.

It should be noted that when each sub-bandwidth includes a different number of resource blocks/subcarriers/resource units, the adjacent sub-bandwidth may be continuous or discontinuous in the frequency domain, that is, each sub-band block of the A sub-bands includes a fixed-size resource block/subcarrier/resource unit; and when each sub-bandwidth includes a different number of resource blocks/subcarriers/resource units, if the A sub-bandwidths are obtained by the equalization system band, the adjacent sub-bandwidth is Continuous in the frequency domain.

Further, the embodiment of the present disclosure described with reference to FIG. 6 provides two methods for determining a second frequency domain resource:

Method 1: Step 63 includes:

Step 631, the configuration signaling indicates one or more sub-bands of the pre-divided A sub-bandwidths as the second frequency domain resource.

That is, the system bandwidth is pre-divided into A sub-bandwidths, and the configuration signaling indicates one or more sub-bands of the A sub-bandwidths as the second frequency domain resources.

The configuration signaling is an indication field in the high layer signaling or the scheduling information of the downlink control channel. The configuration signaling may be pre-configured, or may be configured by the base station or other nodes on the network side during the working process, which is not limited herein.

Method 2: Step 63 includes:

Step 632: Determine, according to a relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths, a second frequency domain resource used for transmitting the pilot.

The system bandwidth is pre-divided into A sub-bandwidths, and the second frequency domain resources are determined according to the relative positions of the first frequency domain resources and the A sub-bandwidths. Specifically, step 632 includes:

If the first frequency domain resource is included in one sub-band of the A sub-bandwidth, determining that the second frequency domain resource is the one sub-band that includes the first frequency domain resource;

If the first frequency domain resource includes two or more sub-bandwidths of the A sub-bandwidths And determining, by the second frequency domain resource, the two or more sub-bandwidths that include the first frequency domain resource.

That is, the base station and the terminal pre-arrange that if the first frequency domain resource is all included in one sub-band of the A sub-bandwidth, determining that the second frequency domain resource is the one that includes the first frequency domain resource a sub-bandwidth; if the first frequency domain resource is included in two or more sub-bandwidths of the A sub-bandwidths, determining that the second frequency domain resource is a device that includes the first frequency domain resource The two or more sub-bandwidths are described, so that both the base station and the terminal can determine the second frequency domain resource used for transmitting the pilot according to the relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths.

Further, before the pilot of the shared channel is transmitted on the second frequency domain resource, the embodiment of the present disclosure with reference to FIG. 6 further discloses a method for acquiring a pilot, that is, the implementation described with reference to FIG. The channel transmission method in the example further includes:

Step 65: Generate, according to the base sequence and the cyclic shift value and/or the orthogonal sequence, a pilot sequence corresponding to the size of the second frequency domain resource, where the pilot sequence is a pilot of the shared channel.

In the foregoing embodiment of the present disclosure, whether the second frequency domain resource is one sub-band of the A sub-bands obtained by pre-dividing the system bandwidth or a plurality of sub-bands of the A sub-bands obtained by pre-dividing the system bandwidth, the pilot thereof The acquiring method includes: cyclically shifting the base sequence according to the base sequence and the cyclic shift value to generate a pilot sequence corresponding to the size of the second frequency domain resource; or, performing the base sequence according to the base sequence and the orthogonal sequence Orthogonal spreading generates a pilot sequence corresponding to the size of the second frequency domain resource; or orthogonally spreading and cyclically shifting the base sequence according to the base sequence and the orthogonal sequence and the cyclic shift A pilot sequence corresponding to the size of the second frequency domain resource.

It should be noted that, in the case that the second frequency domain resource is a plurality of sub-bands of the A sub-bands obtained by pre-dividing the system bandwidth, the pilot of each sub-bandwidth may be generated separately or only one re-copying may be generated, respectively. Describe the situation that is generated separately and the case where only one copy is made again:

That is, when the second frequency domain resource is a plurality of sub-bands of the A sub-bands obtained by pre-dividing the system bandwidth, before the pilot of the shared channel is transmitted on the second frequency domain resource, the reference of the present disclosure The embodiment of FIG. 6 further discloses a method for acquiring a pilot, that is, the channel transmission method further includes:

Step 66: Generate, according to a base sequence of each sub-bandwidth and a cyclic shift value and/or an orthogonal sequence, a pilot sequence corresponding to each sub-bandwidth; wherein, the pilot sequence of the multiple sub-bandwidths is configured The pilot of the shared channel; step 66 is the case where the pilot of each sub-band is separately generated.

When the second frequency domain resource is a plurality of sub-bands of the A sub-bands pre-divided by the system bandwidth, the pilot sequence independently generates each sub-bandwidth of the multiple sub-bandwidths, and the base of the pilot corresponding to each sub-bandwidth The sequence and/or the cyclic shift value and/or the orthogonal sequence may be the same or different, that is, the terminal respectively generates a plurality of pilot sequences of length B, wherein the B is among the A sub-bands pre-divided corresponding to the system bandwidth. The frequency domain length of one sub-bandwidth is mapped to each of the plurality of sub-bandwidths for transmission.

It should be noted that when the cyclic shift value and/or the orthogonal sequence of each sub-bandwidth are different, the cyclic shift value and/or the number of the orthogonal sequence may be separately notified for each sub-bandwidth, or may be only Notifying the cyclic shift value corresponding to the first sub-bandwidth and/or the number of the orthogonal sequence, and the cyclic shift value corresponding to the other sub-bandwidth and/or the number of the orthogonal sequence is based on the loop corresponding to the first sub-bandwidth The shift value and/or the number of the orthogonal sequence and the pre-agreed offset value are obtained.

Alternatively, the channel transmission method further includes:

Step 67: Generate a first pilot sequence according to a base sequence of one of the plurality of sub-bandwidths and a cyclic shift value and/or an orthogonal sequence, and determine a pilot sequence of the other sub-bandwidth and the first guide The frequency sequences are the same, and a plurality of identical first pilot sequences form the pilots of the shared channel. Step 67 is a case where only one copy is made again.

When the second frequency domain resource is a plurality of sub-bands of the A sub-bands pre-divided by the system bandwidth, the pilots are generated according to the frequency domain length of one sub-band of the plurality of sub-bandwidths, and are respectively mapped into the plurality of sub-bandwidths Each sub-bandwidth is transmitted, that is, the pilot is generated for only one sub-bandwidth, and multiple copies are copied, and respectively mapped to transmission in multiple sub-bandwidths, that is, the pilot sequences transmitted in each sub-bandwidth are the same, that is, the base sequence is the same and cyclically shifted. The values are the same.

It should be noted that the method of generating only one pilot and copying multiple copies requires that the frequency domain length of each sub-bandwidth is the same.

Further, in the embodiment described with reference to FIG. 6 of the present disclosure, the cyclic shift value and/or the orthogonal sequence are obtained as follows:

Determining a cyclic shift value of the pilot according to a cyclic shift indication carried in the downlink control channel or configuration information of a pre-agreed or high layer signaling, or a cyclic shift value of the pilot calculated according to an agreed formula ;and / or,

And determining, according to the orthogonal sequence indication carried in the downlink control channel, or the configuration information of the pre-agreed or high layer signaling, the orthogonal sequence of the pilot, or the orthogonal sequence of the pilot calculated according to an agreed formula.

In summary, in the embodiment described with reference to FIG. 6 of the present disclosure, the terminal side adjusts the transmission bandwidth of the pilot to ensure the orthogonality of the pilots of the multiple transmissions of the frequency resources of the data transmission but share the pilot resources. Transmission, thereby ensuring proper transmission and demodulation of data while reducing the pilot overhead of short TTI transmissions.

As shown in FIG. 7, some embodiments of the present disclosure provide a channel transmission method for a base station side, including:

Step 71: Determine a first frequency domain resource for transmitting data information carried by the terminal on the shared channel, and send a downlink control channel to the terminal, where the downlink control channel is used to carry scheduling information of the shared channel, where The first frequency domain resource is included in the scheduling information; the sharing may be an uplink shared channel or a downlink shared channel, which is not specifically limited herein.

Step 72: Determine a second frequency domain resource used by the terminal to transmit the pilot of the shared channel, where the second frequency domain resource is one of a sub-bandwidth of the A sub-bands obtained by pre-dividing the system bandwidth. Sub-bandwidth, A is an integer greater than one;

Step 73: Receive, on the first frequency domain resource, data information that is sent by the terminal and that is carried on the shared channel, and receive, in the second frequency domain, a pilot of the shared channel that is sent by the terminal. .

Correspondingly, the embodiment of the present disclosure described with reference to FIG. 7 also pre-divides the system bandwidth into A sub-bandwidths, for example, the system bandwidth is 20 MHz, and includes 100 resource blocks. If A is 4, the first sub-bandwidth is 0th to 24th resource blocks, the second sub-bandwidth is the 25th to 49th resource blocks, the third sub-bandwidth is the 50th to 74th resource blocks, and the fourth sub-bandwidth is the 75th to the 99th resource blocks . The above example is to divide the system bandwidth into four sub-bandwidths. It should be noted that the manner of uneven distribution is also applicable to the present application, and the manner of uneven allocation is not re-exemplified.

Since the second frequency domain resource of the pilot transmitting the shared channel is one or more of the foregoing A sub-bandwidths, the pilots of different TTIs do not overlap partially in the frequency domain, thereby ensuring sharing of the same column guide. The orthogonality of the pilots of different TTIs of the frequency ensures the correct transmission and demodulation of the data while reducing the pilot overhead of the TTI transmission.

The transmission time interval TTI length of the shared channel in the embodiment described with reference to FIG. 7 of the present disclosure is less than 1 ms; and/or the TTI length of the downlink control channel is less than 1 ms. That is, the shared channel and/or the downlink control channel uses a short TTI for channel transmission.

Further, in the embodiment described with reference to FIG. 7 of the present disclosure, each of the sub-bandwidths includes the same number or a different number of resource blocks; or

Each of the sub-bands includes the same number or a different number of sub-carriers; or,

Each of the sub-bandwidths includes the same number or a different number of resource units; wherein

The resource unit is one subcarrier on a predefined symbol, or a plurality of subcarriers in a frequency domain on one symbol.

It should be noted that when each sub-bandwidth includes a different number of resource blocks/subcarriers/resource units, the adjacent sub-bandwidth may be continuous or discontinuous in the frequency domain, that is, each sub-band block of the A sub-bands includes a fixed-size resource block/subcarrier/resource unit; and when each sub-bandwidth includes a different number of resource blocks/subcarriers/resource units, if the A sub-bandwidths are obtained by the equalization system band, the adjacent sub-bandwidth is Continuous in the frequency domain.

Further, the embodiment of the present disclosure described with reference to FIG. 7 also provides two methods for determining the second frequency domain resource:

Method 3: Step 72 includes:

Step 721: Determine, according to a predetermined agreement, a second frequency domain resource used by the terminal to transmit the pilot of the shared channel; or

Method 4: Step 72 includes:

Step 722: Determine a second frequency domain resource used by the terminal to transmit the pilot of the shared channel, and notify the terminal by using the configuration signaling, where the configuration signaling indicates the advance One or more sub-bands of the obtained A sub-bandwidths are divided as the second frequency domain resources.

Method 4 is to pre-divide the system bandwidth into A sub-bandwidths, and the base station may directly determine one or more sub-bandwidths as the second frequency domain resources; and notify the terminal by configuring signaling, where the configuration signaling indicates the A sub-bandwidths One or more sub-bandwidths in the pair are used as the second frequency domain resource. The configuration signaling is an indication field in the high layer signaling or the scheduling information of the downlink control channel. The configuration signaling may be pre-configured, or may be configured by the base station or other nodes on the network side during the working process, which is not limited herein.

Specifically, step 721 in method 3 includes:

Step 7211: Determine, according to a relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths, a second frequency domain resource used for transmitting the pilot of the shared channel. The system bandwidth is pre-divided into A sub-bandwidths, and the second frequency domain resources are determined according to the relative positions of the first frequency domain resources and the A sub-bandwidths. Specifically, step 7211 includes:

If the first frequency domain resource is included in one sub-band of the A sub-bandwidth, determining that the second frequency domain resource is the one sub-band that includes the first frequency domain resource;

Determining, when the first frequency domain resource is included in two or more sub-bandwidths of the A sub-bandwidths, the second frequency domain resource is the two that include the first frequency domain resource Or more than two sub-bandwidths.

That is, the base station and the terminal pre-arrange that if the first frequency domain resource is all included in one sub-band of the A sub-bandwidth, determining that the second frequency domain resource is the one that includes the first frequency domain resource a sub-bandwidth; if the first frequency domain resource is included in two or more sub-bandwidths of the A sub-bandwidths, determining that the second frequency domain resource is a device that includes the first frequency domain resource The two or more sub-bandwidths are described, so that both the base station and the terminal can determine the second frequency domain resource used for transmitting the pilot according to the relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths.

Further, before receiving the pilot of the shared channel on the second frequency domain resource, the base station side needs to know a method for generating the pilot side pilot, so that related operations can be performed according to the pilot, for example, according to the terminal side pilot. a method for generating a pilot sequence sent by the terminal side, and then obtaining a channel estimation of the terminal according to the pilot sequence transmitted by the terminal side and the pilot sequence received by the base station side, so as to correctly receive the shared channel sent by the terminal, That is, the channel transmission method in the embodiment described with reference to FIG. 7 further includes:

Step 74: Determine that the pilot of the shared channel is a pilot sequence corresponding to a size of the second frequency domain resource generated according to a base sequence and a cyclic shift value and/or an orthogonal sequence.

In the foregoing embodiment of the present disclosure, whether the second frequency domain resource is one sub-band of the A sub-bands obtained by pre-dividing the system bandwidth or a plurality of sub-bands of the A sub-bands obtained by pre-dividing the system bandwidth, the pilot thereof The method is: the terminal cyclically shifts the base sequence according to the base sequence and the cyclic shift value to generate a pilot sequence corresponding to the size of the second frequency domain resource; or, the terminal bases the base sequence and the orthogonal sequence Performing orthogonal spreading on the sequence to generate the second frequency domain resource a pilot sequence corresponding to the size; or orthogonally spreading and cyclically shifting the base sequence according to the base sequence and the orthogonal sequence and the cyclic shift to generate a pilot sequence corresponding to the size of the second frequency domain resource.

It should be noted that, in the case that the second frequency domain resource is a plurality of sub-bands of the A sub-bands obtained by pre-dividing the system bandwidth, the pilot of each sub-bandwidth may be generated separately or only one re-copying may be generated, respectively. Describe the generation of pilots in the case of a single generation and the generation of only one copy of multiple passes:

That is, when the second frequency domain resource is a plurality of sub-bands of the plurality of sub-bands obtained by pre-dividing the system bandwidth, the base station needs to know the channel before receiving the pilot of the shared channel on the second frequency-domain resource. The method for generating a frequency, that is, the channel transmission method further includes:

Step 75: Determine that the pilot of the shared channel is composed of pilot sequences respectively corresponding to multiple sub-bandwidths, and the pilot sequence of each sub-bandwidth is based on a base sequence of each sub-bandwidth and a cyclic shift value and/or orthogonal a pilot sequence generated by the sequence corresponding to each sub-bandwidth; and step 75 is a method of generating a pilot of the shared channel in the case where the pilot of each sub-band is separately generated.

It should be noted that, in the case that the pilots of each sub-band are separately generated, the pilot sequences of different sub-bandwidths may be the same or different.

Alternatively, the channel transmission method further includes:

Step 76: Determine that the pilot of the shared channel is composed of the same pilot sequence of multiple sub-bandwidths, and the same pilot sequence is a base sequence according to one of the multiple sub-bandwidths and a cyclic shift The first pilot sequence generated by the value and/or the orthogonal sequence. Step 75 is a method of generating a pilot that shares a channel in the case where only one copy is repeated.

It should be noted that the method of generating only one pilot and copying multiple copies requires that the frequency domain length of each sub-bandwidth is the same.

Specifically, the cyclic shift value in the embodiment described with reference to FIG. 7 of the present disclosure is determined according to a cyclic shift indication carried in the downlink control channel or configuration information of a pre-agreed or high layer signaling, or Calculated according to the agreed formula; and / or,

The orthogonal sequence is determined according to the orthogonal sequence indication carried in the downlink control channel or the configuration information of the pre-agreed or high layer signaling, or is calculated according to an agreed formula.

In summary, in the embodiment described with reference to FIG. 7 of the present disclosure, the base station side adjusts the transmission bandwidth of the pilot to ensure that the frequency domain resources of the data transmission are different but the pilots of the multiple pilots sharing the pilot resources are shared. Orthogonal transmission, thereby ensuring correct transmission and demodulation of data while reducing the pilot overhead of short TTI transmission.

The channel transmission method of the present disclosure will be described below in conjunction with a specific example:

It is first stated that the Resource Unit (RU) in the present disclosure is defined as a subcarrier on a symbol, ie, a RE (Resource Element), or is defined as a continuous frequency domain on a symbol. X2 RE/SC (Sub Carrier), X2 is a positive integer greater than 0. The pilots in the embodiments of the present disclosure are also referred to as reference symbols, or DMRSs, which are used for data demodulation. In the following examples, the pilots are collectively referred to as DMRSs.

As shown in FIG. 8 , two s-TTIs with a length of 4 symbols share the same DMRS, and the system uplink bandwidth is 20 MHz, and includes 100 physical resource blocks, that is, subcarrier numbers are 0 to 1199, or resource blocks. (Resource Block, RB) number is 0 to 99, or resource unit RU number is 0 to 99 (in units of RU, it is assumed that each RU contains 1 symbol in the time domain and 12 SCs in the frequency domain) Starting from the smallest SC side, starting with RU0, the same below, of course, RU can also be defined as including more symbols in the time domain and/or including more SCs in the frequency domain; pre-dividing the system bandwidth into 4 parts, the first part is subcarrier 0~299 or RB0~24 or RU0~24, the second part is subcarrier 300~599 or RB25~49 or RU25~49, the third part is subcarrier 600~899 or RB50 ～74 or RU50～74, and the fourth part is subcarrier 900～1199 or RB75～99 or RU75～99.

Transmission 1 in S-TTI1 and Transmission 2 in S-TTI2 share DMRS resources.

The first frequency domain resource occupied by the data transmission indicated by the scheduling signaling of the transmission 1 in the S-TTI1 is the sub-carrier 12-131 or the RB1-RB10 or the RU1-RU10, and the first frequency domain resource is included in the system bandwidth pre- In the first sub-band of the divided four sub-bands, the DMRS of the transmission 1 in the s-TTI1 is transmitted on the frequency domain resource corresponding to the first sub-band of the four sub-bands pre-divided by the system bandwidth, that is, s - The data of transmission 1 in TTI1 is transmitted on subcarriers 12 to 131 or RB1 to RB10 or RU1 to RU10, and the DMRS is transmitted in subcarriers 0 to 299 or RB0 to 24 or RU0 to 24, and the DMRS is DMRS. The base sequence is obtained after a cyclic shift of CS=0.

The first frequency domain resource occupied by the data transmission scheduled by the scheduling signaling of the transmission 2 in the S-TTI2 is the sub-carrier 0-251 or the RB0-RB20 or the RU0-RU20, and the first frequency domain resource is included in the system bandwidth pre- In the first sub-band of the divided four sub-bands, the DMRS of the transmission 2 in the s-TTI2 is transmitted on the frequency domain resource corresponding to the first sub-band of the four sub-bands pre-divided by the system bandwidth, That is, the data of the transmission 2 in the s-TTI2 is transmitted on the subcarriers 0 to 251 or RB0 to RB20 or the RU0 to RU20, and the DMRS is transmitted in the subcarriers 0 to 299 or RB0 to 24 or RU0 to 24, and the DMRS is Obtained after a cyclic shift of the DMRS-based sequence by CS=3.

Since the DMRS sequences of Transmission 1 and Transmission 2 are the same length and the mapping positions are identical, the base station side can separate the DMRSs of Transmission 1 and Transmission 2 mapped on the same resource by using the corresponding cyclic shift.

Transmission 3 in S-TTI1 and Transmission 4 in S-TTI2 share DMRS resources, and transmission 5 in S-TTI1 and Transmission 4 in S-TTI2 share DMRS resources.

The first frequency domain resource occupied by the data transmission indicated by the scheduling signaling of the transmission 3 in the S-TTI1 is the sub-carriers 420-599 or RB35-RB49 or the RU35-RU49, and the first frequency domain resource is included in the system bandwidth pre- In the second sub-band of the divided four sub-bands, the DMRS of the transmission 3 in the s-TTI1 is transmitted on the frequency domain resource corresponding to the second sub-band of the four sub-bands pre-divided by the system bandwidth, that is, s - The data of transmission 3 in TTI1 is transmitted on subcarriers 420 to 599 or RB35 to RB49 or RU35 to RU49, and the DMRS is transmitted in subcarriers 300 to 599 or RBs 25 to 49 or RUs 25 to 49, and the DMRS is DMRS. The base sequence is obtained after a cyclic shift of CS=6.

The first frequency domain resource occupied by the data transmission scheduled by the scheduling signaling of the transmission 4 in the S-TTI2 is the sub-carrier 468-839 or the RB39-RB69 or the RU39-RU69, and the first frequency domain resource is included in the system bandwidth pre- In the second sub-band and the third sub-band of the divided four sub-bandwidths, the DMRS of the transmission 4 in the s-TTI2 is the frequency corresponding to the second and third sub-bands of the four sub-bands pre-divided by the system bandwidth. Transmission on the domain resource, that is, the data of the transmission 4 in the s-TTI2 is transmitted on the subcarriers 468 to 839 or RB39 to RB69 or RU39 to RU69, and the DMRS is transmitted in the subcarriers 300 to 899 or the RBs 25 to 74 or the RUs 25 to 74. And when it generates DMRS: one way is to respectively generate two DMRS sequences of 300 subcarriers or 25 RBs or 25 RUs, and the base sequences of each DMRS sequence may be the same or different, and the cycle of each DMRS sequence The shifts may be the same or different, respectively mapped to the second sub-bandwidth of the system bandwidth and the third sub-bandwidth transmission, for example using a cyclic shift CS=9 in the second sub-bandwidth and a cyclic shift CS=9 in the third sub-bandwidth Or CS=0, but in the second sub-system bandwidth The cyclic shift of the DMRS transmitted in the wide and third sub-bands needs to be different from the DMRS cyclic shift of other transmissions sharing the DMRS; the other way is to generate only one length of 300 subcarriers or 25 RBs or 25 RU of the DMRS sequence, the DMRS sequence is the sequence of the DMRS based CS = 9 After the cyclic shift is obtained, the same sequence is mapped to the second sub-bandwidth and the third sub-bandwidth of the system bandwidth, respectively.

The first frequency domain resource occupied by the data transmission scheduled by the scheduling signaling of the transmission 5 in the S-TTI1 is the sub-carrier 720-863 or the RB60-RB71 or the RU60-RU71, and the first frequency domain resource is included in the system bandwidth pre- In the third sub-band of the divided four sub-bands, the DMRS of the transmission 5 in the s-TTI1 is transmitted on the frequency domain resource corresponding to the third sub-band of the four sub-bands pre-divided by the system bandwidth, that is, s- The data of the transmission 5 in the TTI1 is transmitted on the subcarriers 720-863 or RB60-RB71 or the RU60-RU71, and the DMRS is transmitted in the sub-carriers 600-899 or RB50-74 or RU50-74, and the DMRS is the DMRS basis. The sequence is obtained after a cyclic shift of CS=3.

Since the lengths of the DMRS sequences of the transmission 3 and the transmission 4 in the second sub-bandwidth of the system bandwidth are the same and the mapping positions are identical, the base station side can separate the transmission 3 and the transmission 4 mapped on the same resource by using the corresponding cyclic shift. DMRS.

Since the lengths of the DMRS sequences of the transmission 5 and the transmission 4 in the third sub-bandwidth of the system bandwidth are the same and the mapping positions are identical, the base station side can separate the transmission 5 and the transmission 4 mapped on the same resource by using the corresponding cyclic shift. DMRS.

It should be noted that, in the foregoing specific example, the size of the second frequency domain resource is implicitly determined according to the overlap/inclusion relationship between the first frequency domain resource and the four pre-divided portions in the system bandwidth, and is directly replaced by A new example can be obtained by configuring the signaling notification to determine the size of the second frequency domain resource. In the new example, the terminal can directly transmit data according to the first frequency domain resource occupied by the data transmission indicated by the scheduling signaling. Generating and transmitting the DMRS of the data according to the second frequency domain resource size indicated by the configuration signaling; wherein the configuration signaling may be pre-notified for the high layer signaling, or the configuration signaling is directly carried in the scheduling signaling, that is, The first frequency domain resource and the second frequency domain resource size are simultaneously obtained by one transmitted UL (Uplink) / DL (Downlink) grant, optionally, configuration signaling The second frequency domain resource size that can be configured is not smaller than the second frequency domain resource size determined by the manner in the previous example, that is, for example, for the transmission 1, the configuration signaling can configure the second frequency of the DMRS transmission. The resource is the first sub-band of the four sub-bands that are pre-divided into the system bandwidth. Of course, the first sub-band and the second sub-band of the four sub-bands pre-divided by the system bandwidth may be configured as the system bandwidth. a second sub-band of the pre-divided 4 sub-bandwidths (eg, the base station determines, by a priori information, that the interference in the first sub-bandwidth is greater or The channel conditions are poor and are not suitable for transmitting DMRS).

As shown in FIG. 9, some embodiments of the present disclosure provide a channel transmission apparatus for a terminal side, including:

The channel receiving module 81 is configured to receive a downlink control channel, where the downlink control channel is used to carry scheduling information of the shared channel;

The first resource determining module 82 is configured to determine, according to the downlink control channel, a first frequency domain resource for transmitting data information carried on the shared channel;

a second resource determining module 83, configured to determine, according to an indication of a pre-agreed or configuration signaling, a second frequency domain resource for transmitting a pilot of the shared channel, where the second frequency domain resource is a pre-divided system One sub-band or a plurality of sub-bandwidths of the A sub-bandwidth obtained by the bandwidth, and A is an integer greater than one;

The transmitting module 84 is configured to transmit data information carried on the shared channel on the first frequency domain resource, and transmit a pilot of the shared channel on the second frequency domain resource.

Specifically, the transmission time interval TTI length of the shared channel in the embodiment described with reference to FIG. 9 of the present disclosure is less than 1 ms; and/or,

The downlink control channel has a TTI length of less than 1 ms.

Specifically, in the embodiment described with reference to FIG. 9 of the present disclosure, each of the sub-bandwidths includes the same number or a different number of resource blocks; or

Each of the sub-bands includes the same number or a different number of sub-carriers; or,

Each of the sub-bandwidths includes the same number or a different number of resource units; wherein

The resource unit is one subcarrier on a predefined symbol, or a plurality of subcarriers in a frequency domain on one symbol.

Specifically, the second resource determining module in the embodiment described with reference to FIG. 9 of the present disclosure includes:

And a first resource determining submodule, configured to indicate, by using the configuration signaling, one or more sub-bands of the pre-divided A sub-bandwidths as the second frequency domain resource.

Specifically, the second resource determining module in the embodiment described with reference to FIG. 9 of the present disclosure includes:

a second resource determining submodule, configured to: according to the first frequency domain resource and the pre-divided A The relative relationship between the sub-bands determines the second frequency domain resource used to transmit the pilot.

Specifically, the second resource determining sub-module in the embodiment described with reference to FIG. 9 of the present disclosure includes:

a first resource determining unit, configured to determine, when the first frequency domain resource is included in one sub-band of the A sub-bandwidth, the second frequency domain resource is a device that includes the first frequency domain resource Describe a sub-bandwidth;

a second resource determining unit, configured to determine that the second frequency domain resource is the first one if the first frequency domain resource is included in two or more sub-bandwidths of the A sub-bandwidths The two or more sub-bandwidths of the frequency domain resource.

Specifically, the channel transmission apparatus in the embodiment described with reference to FIG. 9 of the present disclosure further includes:

a first pilot determining module, configured to generate, according to a base sequence and a cyclic shift value and/or an orthogonal sequence, a pilot sequence corresponding to a size of the second frequency domain resource, where the pilot sequence is the shared channel Pilots.

Specifically, the channel transmission apparatus in the embodiment described with reference to FIG. 9 of the present disclosure further includes:

a second pilot determining module, configured to: when the second frequency domain resource is a plurality of sub-bands of the A sub-bands obtained by pre-dividing the system bandwidth, according to a base sequence of each sub-bandwidth and a cyclic shift value and/or positive Generating a pilot sequence corresponding to each sub-bandwidth; wherein the pilot sequences of the plurality of sub-bandwidths form pilots of the shared channel; and/or

a third pilot determining module, configured to: when the second frequency domain resource is a plurality of sub-bands of the plurality of sub-bandwidths obtained by pre-dividing the system bandwidth, according to a base sequence and a loop of one of the plurality of sub-bandwidths Transmitting a first pilot sequence by shifting values and/or orthogonal sequences; determining that the pilot sequences of the other sub-bandwidths are identical to the first pilot sequence, and the plurality of identical first pilot sequences constituting the shared channel Pilot.

Specifically, the channel transmission apparatus in the embodiment described with reference to FIG. 9 of the present disclosure further includes:

a cyclic shift value determining module, configured to determine a cyclic shift value of the pilot according to a cyclic shift indication carried in the downlink control channel or configuration information of a pre-agreed or high layer signaling, or a cyclic shift value of the pilot calculated according to an agreed formula; and/or,

And an orthogonal sequence determining module, configured to determine, according to the orthogonal sequence indication carried in the downlink control channel, or the configuration information of the pre-agreed or high layer signaling, the orthogonal sequence of the pilot, or the calculated according to the convention formula The orthogonal sequence of the pilots.

Specifically, the configuration signaling in the embodiment described with reference to FIG. 9 of the present disclosure is a high-level signaling or an indication field in scheduling information of the downlink control channel.

In the embodiment described with reference to FIG. 9 of the present disclosure, the terminal side adjusts the transmission bandwidth of the pilot to ensure orthogonal transmission of pilot signals of different transmissions of the frequency domain resources of the data transmission but sharing the pilot resources, thereby The correct transmission and demodulation of data is ensured while reducing the pilot overhead of short TTI transmission.

It should be noted that the channel transmission apparatus on the terminal side provided by the embodiment described with reference to FIG. 9 of the present disclosure is a channel transmission apparatus corresponding to the channel transmission method on the terminal side provided by the embodiment described above with reference to FIG. Therefore, all the embodiments of the channel transmission method on the terminal side described above are applicable to the channel transmission apparatus, and both can achieve the same or similar beneficial effects.

In order to better achieve the above object, as shown in FIG. 10, some embodiments of the present disclosure further provide a channel transmission apparatus for a terminal side, the channel transmission apparatus includes: a processor 100; a memory 120 coupled to the processor 100, and a transceiver 110 coupled to the processor 100 via a bus interface; the memory for storing programs and data used by the processor in performing operations; through the transceiver 110 transmitting data information or pilots, and receiving a downlink control channel through the transceiver 110; when the processor calls and executes the programs and data stored in the memory, the following functional modules are implemented:

a channel receiving module, configured to receive a downlink control channel, where the downlink control channel is used to carry scheduling information of the shared channel;

a first resource determining module, configured to determine, according to the downlink control channel, a first frequency domain resource for transmitting data information carried on the shared channel;

a second resource determining module, configured to determine, according to an indication of a pre-agreed or configuration signaling, a second frequency domain resource for transmitting a pilot of the shared channel, where the second frequency domain resource is a pre-divided system bandwidth One sub-bandwidth or multiple sub-bandwidths of the obtained A sub-bandwidths, where A is an integer greater than one;

a transmitting module, configured to transmit, on the first frequency domain resource, a number carried on the shared channel According to the information, the pilot of the shared channel is transmitted on the second frequency domain resource.

Wherein, in FIG. 10, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 100 and various circuits of memory represented by memory 120. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 110 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor 100 is responsible for managing the bus architecture and general processing, and the memory 120 can store data used by the processor 100 in performing operations.

The processor 100 is responsible for managing the bus architecture and general processing, and the memory 120 can store data used by the processor 100 in performing operations.

It should be noted that the channel transmission apparatus on the terminal side provided by the embodiment described with reference to FIG. 10 of the present disclosure is a channel transmission apparatus corresponding to the channel transmission method on the terminal side provided by the embodiment described above with reference to FIG. Therefore, all the embodiments of the channel transmission method on the terminal side described above are applicable to the channel transmission apparatus, and both can achieve the same or similar beneficial effects.

As shown in FIG. 11, some embodiments of the present disclosure further provide a channel transmission apparatus for a base station side, including:

The channel sending module 111 is configured to determine a first frequency domain resource used for data information transmission by the terminal on the shared channel, and send a downlink control channel to the terminal, where the downlink control channel is used to carry the scheduling of the shared channel. Information, the first frequency domain resource is included in the scheduling information;

a third resource determining module 112, configured to determine a second frequency domain resource used by the terminal to transmit a pilot of the shared channel, where the second frequency domain resource is a sub-bandwidth obtained by pre-dividing a system bandwidth One sub-bandwidth or multiple sub-bandwidths, A is an integer greater than one;

The receiving module 113 is configured to receive, on the first frequency domain resource, data information that is sent by the terminal and that is carried on the shared channel, and receive, in the second frequency domain, the shared channel that is sent by the terminal. Pilots.

Specifically, the transmission time interval TTI length of the shared channel in the embodiment described with reference to FIG. 11 of the present disclosure is less than 1 ms; and/or,

The downlink control channel has a TTI length of less than 1 ms.

Specifically, in the embodiment described in FIG. 11 of the present disclosure, each of the sub-bandwidths includes the same number or a different number of resource blocks; or

Each of the sub-bands includes the same number or a different number of sub-carriers; or,

Each of the sub-bandwidths includes the same number or a different number of resource units; wherein

The resource unit is one subcarrier on a predefined symbol, or a plurality of subcarriers in a frequency domain on one symbol.

Specifically, the third resource determining module in the embodiment described with reference to FIG. 11 of the present disclosure includes:

a third resource determining submodule, configured to determine, according to a predetermined agreement, a second frequency domain resource used by the terminal to transmit the pilot of the shared channel; and/or,

a fourth resource determining submodule, configured to determine a second frequency domain resource used by the terminal to transmit the pilot of the shared channel, and notify the terminal of the second frequency domain resource by using configuration signaling, where the configuration The signaling indicates one or more sub-bands of the pre-divided A sub-bandwidths as the second frequency domain resource.

Specifically, the third resource determining submodule in the embodiment described with reference to FIG. 11 of the present disclosure includes:

And a third resource determining unit, configured to determine, according to a relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths, a second frequency domain resource used for transmitting the pilot of the shared channel.

Specifically, the third resource determining unit in the embodiment described with reference to FIG. 11 of the present disclosure includes:

a first resource determining subunit, configured to determine, when the first frequency domain resource is included in one subband of the A subbands, to determine that the second frequency domain resource is the first frequency domain resource The one sub-bandwidth;

a second resource determining subunit, configured to determine, when the first frequency domain resource is included in two or more subbands of the A subbands, to include the first The two or more sub-bandwidths of a frequency domain resource.

Specifically, the channel transmission apparatus in the embodiment described with reference to FIG. 11 of the present disclosure further includes:

And a fourth pilot determining module, configured to determine that the pilot of the shared channel is a pilot sequence corresponding to a size of the second frequency domain resource generated according to a base sequence and a cyclic shift value and/or an orthogonal sequence.

Specifically, the pilot transmission apparatus in the embodiment described with reference to FIG. 11 of the present disclosure further includes:

a fifth pilot determining module, configured to: when the second frequency domain resource is a plurality of sub-bands of the plurality of sub-bands obtained by pre-dividing the system bandwidth, determining that the pilot of the shared channel is respectively corresponding to multiple sub-bandwidths a pilot sequence, and the pilot sequence of each sub-bandwidth is a pilot sequence corresponding to each sub-bandwidth generated according to a base sequence of each sub-bandwidth and a cyclic shift value and/or an orthogonal sequence; and/or

a sixth pilot determining module, configured to: when the second frequency domain resource is a plurality of sub-bands of the plurality of sub-bandwidths obtained by pre-dividing the system bandwidth, determine that the pilot of the shared channel is the same guide of multiple sub-bandwidths The frequency sequence is constructed, and the same pilot sequence is a first pilot sequence generated according to a base sequence of one of the plurality of sub-bandwidths and a cyclic shift value and/or an orthogonal sequence.

Specifically, in the embodiment described with reference to FIG. 11 of the present disclosure, the cyclic shift value is determined according to a cyclic shift indication carried in the downlink control channel or configuration information of a pre-agreed or high layer signaling, Or calculated according to the agreed formula; and / or,

The orthogonal sequence is determined according to the orthogonal sequence indication carried in the downlink control channel or the configuration information of the pre-agreed or high layer signaling, or is calculated according to an agreed formula.

Specifically, in the embodiment described with reference to FIG. 11 of the present disclosure, the configuration signaling is an indication field in higher layer signaling or scheduling information of the downlink control channel.

In the embodiment described with reference to FIG. 11 of the present disclosure, the base station side adjusts the transmission bandwidth of the pilot to ensure orthogonal transmission of pilot signals of different transmissions of the frequency domain resources of the data transmission but sharing the pilot resources, thereby The correct transmission and demodulation of data is ensured while reducing the pilot overhead of short TTI transmission.

It should be noted that the channel transmission apparatus on the base station side provided by the embodiment described with reference to FIG. 11 of the present disclosure is a channel transmission apparatus corresponding to the channel transmission method on the base station side provided by the embodiment described above with reference to FIG. Therefore, all the embodiments of the channel transmission method on the base station side are applicable to the channel transmission apparatus, and both can achieve the same or similar beneficial effects.

In order to better achieve the above object, as shown in FIG. 10, some embodiments of the present disclosure further provide a channel transmission apparatus for a base station side, the channel transmission apparatus includes: a processor 100; The memory 120 connected to the processor 100, and through the bus interface a transceiver 110 coupled to the processor 100; the memory for storing programs and data used by the processor in performing operations; transmitting data information or pilots through the transceiver 110, and also passing through the transceiver 110 receives a downlink control channel; when the processor invokes and executes the program and data stored in the memory, the following functional modules are implemented:

a channel sending module, configured to determine a first frequency domain resource used for transmitting data information carried by the terminal on the shared channel, and send a downlink control channel to the terminal, where the downlink control channel is used to carry scheduling information of the shared channel The first frequency domain resource is included in the scheduling information;

a third resource determining module, configured to determine a second frequency domain resource used by the terminal to transmit a pilot of the shared channel, where the second frequency domain resource is in a sub-bandwidth obtained by pre-dividing a system bandwidth One sub-bandwidth or multiple sub-bandwidths, A is an integer greater than one;

a receiving module, configured to receive, on the first frequency domain resource, data information that is sent by the terminal and that is carried on the shared channel, and receive, by using the second frequency domain, the shared channel that is sent by the terminal Pilot.

Wherein, in FIG. 10, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 100 and various circuits of memory represented by memory 120. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 110 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor 100 is responsible for managing the bus architecture and general processing, and the memory 120 can store data used by the processor 100 in performing operations.

The processor 100 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 100 in performing operations.

It should be noted that the channel transmission apparatus on the base station side provided by the embodiment described with reference to FIG. 10 of the present disclosure is a channel transmission apparatus corresponding to the channel transmission method on the base station side provided by the embodiment described above with reference to FIG. 7 . Therefore, all embodiments of the above-described base station side channel transmission method are applicable to the channel transmission apparatus, and both can achieve the same or similar advantageous effects.

The above is a preferred embodiment of the present disclosure, and it should be noted that those skilled in the art can also make it without departing from the principles of the present disclosure. Dry improvement and retouching, these improvements and refinements should also be considered as protection of this disclosure.

Claims (42)

A channel transmission method for a terminal side includes: Receiving a downlink control channel, where the downlink control channel is used to carry scheduling information of the shared channel; Determining, according to the downlink control channel, a first frequency domain resource for transmitting data information carried on the shared channel; Determining, according to a pre-agreed or configuration signaling indication, a second frequency domain resource for transmitting a pilot of the shared channel; wherein the second frequency domain resource is one of A sub-bandwidths obtained by pre-dividing the system bandwidth Sub-bandwidth or multiple sub-bandwidths, A is an integer greater than one; Transmitting data information carried on the shared channel on the first frequency domain resource, and transmitting pilot of the shared channel on the second frequency domain resource. The channel transmission method according to claim 1, wherein a transmission time interval (TTI) length of the shared channel is less than 1 ms; and/or, The downlink control channel has a TTI length of less than 1 ms. The channel transmission method according to claim 1, wherein each of said sub-bands includes the same number or a different number of resource blocks; or Each of the sub-bands includes the same number or a different number of sub-carriers; or, Each of the sub-bandwidths includes the same number or a different number of resource units; wherein The resource unit is one subcarrier on a predefined symbol, or a plurality of subcarriers in a frequency domain on one symbol. The channel transmission method according to claim 1, wherein the determining of the second frequency domain resource for transmitting the pilot according to the indication of the configuration signaling comprises: The configuration signaling indicates one or more sub-bands of the pre-divided A sub-bandwidths as the second frequency domain resource. The channel transmission method according to claim 1, wherein the determining, by the pre-agreed, the second frequency domain resource for transmitting the pilot of the shared channel comprises: And determining, according to a relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths, a second frequency domain resource used for transmitting the pilot. The channel transmission method according to claim 5, wherein according to said first frequency domain resource The step of determining the relative relationship between the A sub-bandwidths that are pre-divided and determining the second frequency domain resources for transmitting the pilots includes: If the first frequency domain resource is included in one sub-band of the A sub-bandwidth, determining that the second frequency domain resource is the one sub-band that includes the first frequency domain resource; Determining, when the first frequency domain resource is included in two or more sub-bandwidths of the A sub-bandwidths, the second frequency domain resource is the two that include the first frequency domain resource Or more than two sub-bandwidths. The channel transmission method according to claim 1, wherein the channel transmission method further comprises: before transmitting the pilot of the shared channel on the second frequency domain resource: And generating, according to the base sequence and the cyclic shift value and/or the orthogonal sequence, a pilot sequence corresponding to the size of the second frequency domain resource, where the pilot sequence is a pilot of the shared channel. The channel transmission method according to claim 1, wherein when said second frequency domain resource is a plurality of sub-bands of A sub-bandwidths obtained by pre-dividing a system bandwidth, said transmitting said said second frequency domain resource Before the pilot of the shared channel, the channel transmission method further includes: Generating a pilot sequence corresponding to each sub-bandwidth according to a base sequence of each sub-bandwidth and a cyclic shift value and/or an orthogonal sequence; wherein the pilot sequences of the plurality of sub-bands constitute pilots of the shared channel ;or, Generating a first pilot sequence according to a base sequence of one of the plurality of sub-bandwidths and a cyclic shift value and/or an orthogonal sequence; determining a pilot sequence of other sub-bandwidths is the same as the first pilot sequence A plurality of identical first pilot sequences form pilots of the shared channel. The channel transmission method according to claim 7 or 8, wherein said cyclic shift value and/or orthogonal sequence are obtained as follows: Determining a cyclic shift value of the pilot according to a cyclic shift indication carried in the downlink control channel or configuration information of a pre-agreed or high layer signaling, or a cyclic shift value of the pilot calculated according to an agreed formula ;and / or, And determining, according to the orthogonal sequence indication carried in the downlink control channel, or the configuration information of the pre-agreed or high layer signaling, the orthogonal sequence of the pilot, or the orthogonal sequence of the pilot calculated according to an agreed formula. The channel transmission method according to claim 1 or 4, wherein said configuration signaling is high Layer signaling or an indication field in scheduling information of the downlink control channel. A channel transmission method for a base station side includes: Determining, by the terminal, a first frequency domain resource for transmitting data information that is carried by the terminal on the shared channel, and transmitting, to the terminal, a downlink control channel, where the downlink control channel is used to carry scheduling information of the shared channel, the first frequency The domain resource is included in the scheduling information; Determining, by the terminal, a second frequency domain resource for transmitting the pilot of the shared channel, where the second frequency domain resource is one of a sub-bandwidth or a plurality of sub-bandwidths obtained by pre-dividing the system bandwidth, A is an integer greater than one; Receiving, by the terminal, data information carried by the terminal on the shared channel, and receiving, by using the second frequency domain, a pilot of the shared channel sent by the terminal. The channel transmission method according to claim 11, wherein a transmission time interval (TTI) length of the shared channel is less than 1 ms; and/or, The downlink control channel has a TTI length of less than 1 ms. The channel transmission method according to claim 11, wherein each of said sub-bands includes the same number or a different number of resource blocks; or Each of the sub-bands includes the same number or a different number of sub-carriers; or, Each of the sub-bandwidths includes the same number or a different number of resource units; wherein The resource unit is one subcarrier on a predefined symbol, or a plurality of subcarriers in a frequency domain on one symbol. The channel transmission method according to claim 11, wherein the determining of the second frequency domain resource for transmitting, by the terminal, the pilot of the shared channel comprises: Determining, according to a pre-agreed, a second frequency domain resource for transmitting, by the terminal, the pilot of the shared channel; or Determining, by the terminal, the second frequency domain resource of the pilot of the shared channel, and notifying the second frequency domain resource to the terminal by using configuration signaling, where the configuration signaling indicates the pre-divided One or more sub-bandwidths of the A sub-bands are used as the second frequency domain resource. The channel transmission method according to claim 14, wherein the determining, by the pre-agreed, the second frequency domain resource for transmitting, by the terminal, the pilot of the shared channel comprises: According to the relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths, Determining a second frequency domain resource for transmitting pilots of the shared channel. The channel transmission method according to claim 15, wherein the second frequency of the pilot for transmitting the shared channel is determined according to a relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths The steps of the domain resource include: If the first frequency domain resource is included in one sub-band of the A sub-bandwidth, determining that the second frequency domain resource is the one sub-band that includes the first frequency domain resource; Determining, when the first frequency domain resource is included in two or more sub-bandwidths of the A sub-bandwidths, the second frequency domain resource is the two that include the first frequency domain resource Or more than two sub-bandwidths. The channel transmission method according to claim 11, wherein before the receiving the pilot of the shared channel on the second frequency domain resource, the channel transmission method further comprises: Determining the pilot of the shared channel is a pilot sequence corresponding to a size of the second frequency domain resource generated according to a base sequence and a cyclic shift value and/or an orthogonal sequence. The channel transmission method according to claim 11, wherein when the second frequency domain resource is a plurality of sub-bands of a plurality of sub-bands obtained by pre-dividing a system bandwidth, receiving the same on the second frequency domain resource Before the pilot of the shared channel, the channel transmission method further includes: Determining that the pilot of the shared channel is composed of pilot sequences respectively corresponding to multiple sub-bandwidths, and the pilot sequence of each sub-bandwidth is generated according to a base sequence of each sub-bandwidth and a cyclic shift value and/or an orthogonal sequence. a pilot sequence corresponding to each sub-bandwidth; or, Determining that the pilot of the shared channel is composed of the same pilot sequence of multiple sub-bandwidths, and the same pilot sequence is based on a base sequence of one of the plurality of sub-bandwidths and a cyclic shift value and/or Or a first pilot sequence generated by an orthogonal sequence. The channel transmission method according to claim 17 or 18, wherein The cyclic shift value is determined according to a cyclic shift indication carried in the downlink control channel or configuration information of a pre-agreed or high layer signaling, or calculated according to an agreed formula; and/or, The orthogonal sequence is determined according to the orthogonal sequence indication carried in the downlink control channel or the configuration information of the pre-agreed or high layer signaling, or is calculated according to an agreed formula. The channel transmission method according to claim 14, wherein said configuration signaling is a high layer letter Or an indication field in the scheduling information of the downlink control channel. A channel transmission device is used on the terminal side, including: a channel receiving module, configured to receive a downlink control channel, where the downlink control channel is used to carry scheduling information of the shared channel; a first resource determining module, configured to determine, according to the downlink control channel, a first frequency domain resource for transmitting data information carried on the shared channel; a second resource determining module, configured to determine, according to an indication of a pre-agreed or configuration signaling, a second frequency domain resource for transmitting a pilot of the shared channel, where the second frequency domain resource is a pre-divided system bandwidth One sub-bandwidth or multiple sub-bandwidths of the obtained A sub-bandwidths, where A is an integer greater than one; And a transmission module, configured to transmit data information carried on the shared channel on the first frequency domain resource, and transmit a pilot of the shared channel on the second frequency domain resource. The channel transmission apparatus according to claim 21, wherein a transmission time interval (TTI) length of the shared channel is less than 1 ms; and/or, The downlink control channel has a TTI length of less than 1 ms. The channel transmission apparatus according to claim 21, wherein each of said sub-bands includes the same number or a different number of resource blocks; or Each of the sub-bands includes the same number or a different number of sub-carriers; or, Each of the sub-bandwidths includes the same number or a different number of resource units; wherein The resource unit is one subcarrier on a predefined symbol, or a plurality of subcarriers in a frequency domain on one symbol. The channel transmission apparatus according to claim 21, wherein said second resource determining module comprises: And a first resource determining submodule, configured to indicate, by using the configuration signaling, one or more sub-bands of the pre-divided A sub-bandwidths as the second frequency domain resource. The channel transmission apparatus according to claim 21, wherein said second resource determining module comprises: And a second resource determining submodule, configured to determine, according to a relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths, a second frequency domain resource used for transmitting the pilot. The channel transmission apparatus according to claim 25, wherein said second resource determination sub-module comprises: a first resource determining unit, configured to determine, when the first frequency domain resource is included in one sub-band of the A sub-bandwidth, the second frequency domain resource is a device that includes the first frequency domain resource Describe a sub-bandwidth; a second resource determining unit, configured to determine that the second frequency domain resource is the first one if the first frequency domain resource is included in two or more sub-bandwidths of the A sub-bandwidths The two or more sub-bandwidths of the frequency domain resource. The channel transmission apparatus according to claim 21, wherein said channel transmission apparatus further comprises: a first pilot determining module, configured to generate, according to a base sequence and a cyclic shift value and/or an orthogonal sequence, a pilot sequence corresponding to a size of the second frequency domain resource, where the pilot sequence is the shared channel Pilots. The channel transmission apparatus according to claim 21, wherein said channel transmission apparatus further comprises: a second pilot determining module, configured to: when the second frequency domain resource is a plurality of sub-bands of the A sub-bands obtained by pre-dividing the system bandwidth, according to a base sequence of each sub-bandwidth and a cyclic shift value and/or positive Generating a pilot sequence corresponding to each sub-bandwidth; wherein the pilot sequences of the plurality of sub-bandwidths form pilots of the shared channel; and/or a third pilot determining module, configured to: when the second frequency domain resource is a plurality of sub-bands of the plurality of sub-bandwidths obtained by pre-dividing the system bandwidth, according to a base sequence and a loop of one of the plurality of sub-bandwidths Transmitting a first pilot sequence by shifting values and/or orthogonal sequences; determining that the pilot sequences of the other sub-bandwidths are identical to the first pilot sequence, and the plurality of identical first pilot sequences constituting the shared channel Pilot. The channel transmission apparatus according to claim 27 or 28, wherein the channel transmission apparatus further comprises: a cyclic shift value determining module, configured to determine a cyclic shift value of the pilot according to a cyclic shift indication carried in the downlink control channel or configuration information of a pre-agreed or high layer signaling, or calculated according to an agreed formula a cyclic shift value of the pilot; and/or, And an orthogonal sequence determining module, configured to determine, according to the orthogonal sequence indication carried in the downlink control channel, or the configuration information of the pre-agreed or high layer signaling, the orthogonal sequence of the pilot, or the calculated according to the convention formula The orthogonal sequence of the pilots. The channel transmission apparatus according to claim 21 or 24, wherein the configuration signaling is an indication field in higher layer signaling or scheduling information of the downlink control channel. A channel transmission apparatus, used for a base station side, includes: a channel sending module, configured to determine a first frequency domain resource used for transmitting data information carried by the terminal on the shared channel, and send a downlink control channel to the terminal, where the downlink control channel is used to carry scheduling information of the shared channel The first frequency domain resource is included in the scheduling information; a third resource determining module, configured to determine a second frequency domain resource used by the terminal to transmit a pilot of the shared channel, where the second frequency domain resource is in a sub-bandwidth obtained by pre-dividing a system bandwidth One sub-bandwidth or multiple sub-bandwidths, A is an integer greater than one; a receiving module, configured to receive, on the first frequency domain resource, data information that is sent by the terminal and that is carried on the shared channel, and receive, by using the second frequency domain, the shared channel that is sent by the terminal Pilot. The channel transmission apparatus according to claim 31, wherein a transmission time interval (TTI) length of the shared channel is less than 1 ms; and/or, The downlink control channel has a TTI length of less than 1 ms. The channel transmission apparatus according to claim 31, wherein each of said sub-bandwidths includes the same number or a different number of resource blocks; or Each of the sub-bands includes the same number or a different number of sub-carriers; or, Each of the sub-bandwidths includes the same number or a different number of resource units; wherein The resource unit is one subcarrier on a predefined symbol, or a plurality of subcarriers in a frequency domain on one symbol. The channel transmission apparatus according to claim 31, wherein the third resource determining module comprises: a third resource determining submodule, configured to determine, according to a predetermined agreement, a second frequency domain resource used by the terminal to transmit the pilot of the shared channel; and/or, a fourth resource determining submodule, configured to determine a second frequency domain resource used by the terminal to transmit the pilot of the shared channel, and notify the terminal of the second frequency domain resource by using configuration signaling, where The signaling indicates one or more sub-bands of the pre-divided A sub-bandwidths as the second frequency domain resource. The channel transmission apparatus according to claim 34, wherein said third resource determination sub-module comprises: And a third resource determining unit, configured to determine, according to a relative relationship between the first frequency domain resource and the pre-divided A sub-bandwidths, a second frequency domain resource used for transmitting the pilot of the shared channel. The channel transmission apparatus according to claim 35, wherein said third resource determining unit comprises: a first resource determining subunit, configured to determine, when the first frequency domain resource is included in one subband of the A subbands, to determine that the second frequency domain resource is the first frequency domain resource The one sub-bandwidth; a second resource determining subunit, configured to determine, when the first frequency domain resource is included in two or more subbands of the A subbands, to include the first The two or more sub-bandwidths of a frequency domain resource. The channel transmission apparatus according to claim 31, wherein said channel transmission apparatus further comprises: And a fourth pilot determining module, configured to determine that the pilot of the shared channel is a pilot sequence corresponding to a size of the second frequency domain resource generated according to a base sequence and a cyclic shift value and/or an orthogonal sequence. The channel transmission apparatus according to claim 31, wherein said pilot transmission apparatus further comprises: a fifth pilot determining module, configured to: when the second frequency domain resource is a plurality of sub-bands of the plurality of sub-bands obtained by pre-dividing the system bandwidth, determining that the pilot of the shared channel is respectively corresponding to multiple sub-bandwidths a pilot sequence, and the pilot sequence of each sub-bandwidth is a pilot sequence corresponding to each sub-bandwidth generated according to a base sequence of each sub-bandwidth and a cyclic shift value and/or an orthogonal sequence; and/or a sixth pilot determining module, configured to: when the second frequency domain resource is a plurality of sub-bands of the plurality of sub-bandwidths obtained by pre-dividing the system bandwidth, determine that the pilot of the shared channel is the same guide of multiple sub-bandwidths The frequency sequence is constructed, and the same pilot sequence is a first pilot sequence generated according to a base sequence of one of the plurality of sub-bandwidths and a cyclic shift value and/or an orthogonal sequence. A channel transmission apparatus according to claim 37 or 38, wherein The cyclic shift value is determined according to a cyclic shift indication carried in the downlink control channel or configuration information of a pre-agreed or high layer signaling, or calculated according to an agreed formula; and/or, The orthogonal sequence is determined according to the orthogonal sequence indication carried in the downlink control channel or the configuration information of the pre-agreed or high layer signaling, or is calculated according to an agreed formula. The channel transmission apparatus according to claim 34, wherein said configuration signaling is an indication field in higher layer signaling or scheduling information of said downlink control channel. A channel transmission apparatus for a terminal side, comprising: a processor, a memory, and a transceiver, wherein: A processor for reading a program in the memory, performing the following process: Receiving a downlink control channel, where the downlink control channel is used to carry scheduling information of the shared channel; Determining, according to the downlink control channel, a first frequency domain resource for transmitting data information carried on the shared channel; Determining, according to a pre-agreed or configuration signaling indication, a second frequency domain resource for transmitting a pilot of the shared channel; wherein the second frequency domain resource is one of A sub-bandwidths obtained by pre-dividing the system bandwidth Sub-bandwidth or multiple sub-bandwidths, A is an integer greater than one; Transmitting data information carried on the shared channel on the first frequency domain resource, and transmitting pilot information of the shared channel on the second frequency domain resource, The transceiver is configured to receive and transmit data, The processor is responsible for managing the bus architecture and the usual processing, and the memory is capable of storing the data used by the processor in performing the operations. A channel transmission apparatus for a base station side, comprising: a processor, a memory, and a transceiver, wherein: A processor for reading a program in the memory, performing the following process: Determining, by the terminal, a first frequency domain resource for transmitting data information that is carried by the terminal on the shared channel, and transmitting, to the terminal, a downlink control channel, where the downlink control channel is used to carry scheduling information of the shared channel, the first frequency The domain resource is included in the scheduling information; Determining, by the terminal, a second frequency domain resource for transmitting the pilot of the shared channel, where the second frequency domain resource is one of a sub-bandwidth or a plurality of sub-bandwidths obtained by pre-dividing the system bandwidth, A is an integer greater than one; Receiving, on the first frequency domain resource, data information that is sent by the terminal and being carried on the shared channel, and receiving, in the second frequency domain, a pilot of the shared channel that is sent by the terminal, The transceiver is configured to receive and transmit data, The processor is responsible for managing the bus architecture and the usual processing, and the memory is capable of storing the data used by the processor in performing the operations.

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