JP6997130B2 - Data transmission method and device - Google Patents

Description

The present invention relates to the field of wireless communication, and more particularly to data transmission methods and devices.

In wireless communication systems, data transmission includes uplink transmission and downlink transmission. Uplink transmission means that the user device (English notation: User Equipment, abbreviated as UE) transmits data to the base station, and downlink transmission means that the base station transmits data to the UE. In addition, it is necessary to occupy different time and frequency resources in uplink transmission and downlink transmission. For example, in a long term evolution (English notation: Long Term Evolution, abbreviated as LTE) system using a time division duplex (English notation: Time Division Duplex, abbreviated as TDD) system, data transmission is performed in uplink transmission and downlink transmission. Need to occupy frames within different time intervals for.

In an LTE system, one frame can be divided into 10 subframes , the 10 subframes including uplink subframes, downlink subframes, and special subframes. Each subframe can be further divided into multiple symbols over time, the plurality of symbols being orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplex, abbreviated as OFDM) symbols, or single carrier frequency division multiplexing. It can be a connection (English notation: Single Carrier Frequency Division Multiplex Access, abbreviated as SC-FDMA) symbol. The OFDM symbol is used for downlink transmission, and the SC-FDMA symbol is used for uplink transmission.

In the prior art, as shown in FIG. 1, two consecutive subframes, i.e., subframe n and subframe n + 1, are included. The first symbol of each subframe is assigned as an OFDM symbol, which is used to transmit the downlink control channel. The second symbol is assigned as an SC-FDMA symbol, and the second symbol is used to transmit the uplink control channel. The residual symbol following the second symbol may be assigned as an SC-FDMA symbol or may be assigned as an OFDM symbol. Therefore, the residual symbol following the second symbol is used to transmit uplink data or downlink data. In addition, a specific guard period (English notation: Guard Period) is required when a network device switches between uplink and downlink transmissions. The network device cannot send data within the guard period. Therefore, for two consecutive symbols, one symbol is used for uplink transmission and the other symbol is used for downlink transmission, that is, one symbol is an SC-FDMA symbol. If the other symbol is an OFDM symbol, it is necessary to set a guard period between the two symbols. As shown in FIG. 1, switching between uplink and downlink transmissions needs to be performed twice within each subframe and three guard periods need to be set.

While such existing designs are relatively flexible, they have the drawbacks of wasting resources and complex implementation. Specifically, in the prior art, it is necessary to set three guard periods in one subframe. As a result, not only can valid data information not be transmitted within the time of the guard period, but also the communication device must frequently switch between receive and transmit states, leading to increased implementation complexity.

In order to reduce resources, improve radio resource utilization, and reduce implementation complexity, embodiments of the present invention provide data transmission methods and devices. The technical solution is as follows.

According to the first aspect, a data transmission method is provided, the method of which is a step of determining the type of a first subframe for data transmission, and the type of the first subframe is a type 1 subframe. , Type 2 subframe, Type 3 subframe, or Type 4 subframe, the Type 1 subframe includes an uplink control channel and a downlink channel, and the uplink control channel of the Type 1 subframe. Is located in front of the downlink channel of the Type 1 subframe, the Type 2 subframe includes the uplink control channel and the downlink channel, and the uplink control channel of the Type 2 subframe is the Type 2. Located after the downlink channel of the subframe, there is a guard period between the uplink control channel of the Type 2 subframe and the downlink channel of the Type 2 subframe, and the Type 3 subframe is the uplink. Including channels and downlink control channels, the uplink channel of the Type 3 subframe is located in front of the downlink control channel of the Type 3 subframe, and the Type 4 subframe is the uplink channel and downlink control. The uplink channel of the Type 4 subframe, including the channel, is located after the downlink control channel of the Type 4 subframe, and the uplink channel of the Type 4 subframe and the downlink control channel of the Type 4 subframe. It comprises a stage in which there is a guard period between and, and a stage in which data is transmitted in the first subframe according to a determined type of the first subframe.

In connection with the first aspect, in the first possible embodiment of the first aspect, the method is a step of transmitting data in a second subframe after the first subframe, wherein the second subframe is. If the data transmission direction at the start of the second subframe is different from the data transmission direction at the end of the first subframe, the first subframe and the second subframe are further provided adjacent to the first subframe. If a guard period is further included between, and the data transmission direction at the start of the second subframe is the same as the data transmission direction at the end of the first subframe, then the first and second subframes There is no time interval between them.

In connection with the first aspect, in the second possible embodiment of the first aspect, the method is a step of transmitting data in a second subframe after the first subframe, wherein the second subframe is. If the data transmission direction at the start of the second subframe is uplink and the data transmission direction at the end of the first subframe is downlink, adjacent to the first subframe, further including steps, the first. An additional guard period is included between the subframe and the second subframe.

In connection with the first possible embodiment of the first aspect, or the first possible embodiment of the first aspect, or the second possible embodiment of the first aspect, in the third possible embodiment of the first aspect, the data transmission The stage of determining the type of the first subframe for the purpose is the stage of determining whether the type of the first subframe is the first type subframe or the second type subframe according to the first preset period. Alternatively, it comprises a step of determining whether the type of the first subframe is a type 3 subframe or a type 4 subframe according to a second preset period.

In connection with the third possible embodiment of the first aspect, in the fourth possible embodiment of the first aspect, the type of the first subframe is the first subframe according to the first preset period. When determined to be a frame or a Type 2 subframe, the first subframe is used to transmit one or a combination of synchronization signals, broadcast signals, or discovery reference signals, wherein the first subframe is used. , The broadcast signal is used to retain information about the first preset period and / or the second preset period.

In relation to the third possible implementation of the first aspect, or the fourth possible implementation of the first aspect, in the fifth possible implementation of the first aspect, a first preset period. And when the second preset period is the same, the broadcast signal indicates a first preset period or a second preset period, and the broadcast signal is a first preset period. Further indicating the offset between the period and the second preset period, the offset is the subframe number between the subframes corresponding to the first preset period and the second preset period. Used to show the difference.

In relation to any one of the fifth possible embodiments of the first aspect to the first aspect, in the sixth possible embodiment of the first aspect, the uplink control channel or downlink of the first subframe. The control channel holds the instruction information, which is used to indicate the subframe type of the kth subframe after the first subframe, where k is a positive integer.

In relation to any one of the sixth possible embodiments of the first aspect to the first aspect, in the seventh possible embodiment of the first aspect, the first in the downlink channel of the Type 1 subframe. A preset number of contiguous symbols, or a first preset number of contiguous symbols in the downlink channel of a Type 2 subframe, are used to transmit the downlink control channel, the first. Symbols other than the first preset number of symbols in the downlink channel of the seed subframe, or symbols other than the first preset number of symbols in the downlink channel of the second type subframe, are Used to transmit downlink data, where the first preset number of consecutive symbols is the first preset number of symbols placed first in chronological order. Alternatively, the first preset number of consecutive symbols is the first preset number of symbols placed last in chronological order.

In relation to any one of the sixth possible embodiments of the first aspect to the first aspect, in the eighth possible embodiment of the first aspect, the first in the downlink channel of the Type 1 subframe. The frequency band set, or the first frequency band set in the downlink channel of the Type 2 subframe, is used to transmit the downlink data, and the second frequency band set in the downlink channel of the Type 1 subframe, or The second frequency band set in the downlink channel of the second type subframe is used to transmit the downlink control channel.

In relation to any one of the sixth possible embodiments of the first aspect to the first aspect, in the ninth possible embodiment of the first aspect, the first in the downlink channel of the Type 1 subframe. A preset number of contiguous symbols, or a first preset number of contiguous symbols in the downlink channel of a Type 2 subframe, are used to transmit the downlink control channel, the first. A third frequency band set of symbols other than the first preset number of symbols in the seed subframe downlink channel, or a first preset number of symbols in the second type subframe downlink channel. The third frequency band set of symbols other than the symbol is used to transmit the downlink data, and is set in the first preset in the downlink channel of the first type subframe or the downlink channel of the second type subframe. The fourth frequency band set of symbols other than the number of symbols, or the fourth frequency band set of symbols other than the first preset number of symbols in the downlink channel of the second type subframe, is downlink controlled. Used to transmit channels.

In relation to any one of the ninth possible embodiments of the first aspect to the first aspect, in the tenth possible embodiment of the first aspect, the second in the uplink channel of the Type 3 subframe. A preset number of contiguous symbols of, or a second preset number of contiguous symbols in the uplink channel of the Type 4 subframe, is used to transmit the uplink control channel, the third. Symbols other than the second preset number of symbols in the uplink channel of the seed subframe, or symbols other than the second preset number of symbols in the uplink channel of the fourth type subframe, are Used to transmit uplink data, where the second preset number of consecutive symbols is the second preset number of symbols first placed in chronological order. Alternatively, the second preset number of consecutive symbols is the second preset number of symbols placed last in chronological order.

In relation to any one of the ninth possible embodiments of the first aspect to the first aspect, in the eleventh possible embodiment of the first aspect, the first in the uplink channel of the Type 3 subframe. The frequency band set, or the first frequency band set in the uplink channel of the Type 4 subframe, is used to transmit the uplink data, and the second frequency band set in the uplink channel of the Type 3 subframe, or. The second frequency band set in the uplink channel of the Type 4 subframe is used to transmit the uplink control channel.

In relation to any one of the ninth possible embodiments of the first aspect to the first aspect, in the twelfth possible embodiment of the first aspect, the second in the uplink channel of the Type 3 subframe. A preset number of contiguous symbols of, or a second preset number of contiguous symbols in the uplink channel of the Type 4 subframe, is used to transmit the uplink control channel, the third. A third frequency band set of symbols other than the second preset number of symbols in the seed subframe uplink channel, or a second preset number of symbols in the type 4 subframe uplink channel. The third frequency band set of symbols other than symbols is used to transmit uplink data and is the fourth of the symbols other than the second preset number of symbols in the uplink channel of the Type 3 subframe. A frequency band set, or a fourth frequency band set of symbols other than the second preset number of symbols in the uplink channel of the Type 4 subframe, is used to transmit the uplink control channel.

According to the second aspect, a data transmission device is provided, the device being a determination module configured to determine the type of first subframe for data transmission, wherein the type of first subframe is. A type 1 subframe, a type 2 subframe, a type 3 subframe, or a type 4 subframe, wherein the type 1 subframe includes an uplink control channel and a downlink channel, and is a type 1 subframe. The uplink control channel of the type 1 subframe is located in front of the downlink channel of the type 1 subframe, the type 2 subframe includes the uplink control channel and the downlink channel, and the uplink control channel of the type 2 subframe. Is located after the downlink channel of the Type 2 subframe, and there is a guard period between the uplink control channel of the Type 2 subframe and the downlink channel of the Type 2 subframe, and the Type 3 subframe. The frame includes an uplink channel and a downlink control channel, the uplink channel of the Type 3 subframe is located before the downlink control channel of the Type 3 subframe, and the Type 4 subframe is the uplink. The uplink channel of the Type 4 subframe, including the channel and the downlink control channel, is located after the downlink control channel of the Type 4 subframe, and the uplink channel and the Type 4 subframe of the Type 4 subframe. It comprises a decision module with a guard period between the downlink control channels and a first transmit module configured to transmit data in the first subframe according to a determined type of first subframe. ..

In connection with the second aspect, in the first possible embodiment of the second aspect, the device is a second transmission module configured to transmit data in a second subframe after the first subframe. If the second subframe further comprises a second transmission module adjacent to the first subframe and the data transmission direction at the start of the second subframe is different from the data transmission direction at the end of the first subframe. If there is an additional guard period between the first subframe and the second subframe, and the data transmission direction at the start of the second subframe is the same as the data transmission direction at the end of the first subframe, the first. No time interval is included between the 1st subframe and the 2nd subframe.

In connection with the second aspect, in the second possible embodiment of the second aspect, the device is a second transmission module configured to transmit data in a second subframe after the first subframe. The second subframe further comprises a second transmission module adjacent to the first subframe, the data transmission direction at the start of the second subframe is uplink, and data transmission at the end of the first subframe. If the orientation is downlink, there is an additional guard period between the first and second subframes.

In the third possible embodiment of the second aspect, in connection with the second possible embodiment of the second aspect, or the first possible embodiment of the second aspect, or the second possible embodiment of the second aspect, the determination module , A first determination module configured to determine whether the type of the first subframe is a Type 1 subframe or a Type 2 subframe according to a first preset period, or a second preset. It includes a second determination module configured to determine whether the type of the first subframe is a Type 3 subframe or a Type 4 subframe according to a set period.

In connection with the third possible embodiment of the second aspect, in the fourth possible embodiment of the second aspect, the type of the first subframe is the first subframe according to the first preset period. When determined to be a frame or a Type 2 subframe, the first subframe is used to transmit one or a combination of synchronization signals, broadcast signals, or discovery reference signals, wherein the first subframe is used. , The broadcast signal is used to retain information about the first preset period and / or the second preset period.

In relation to the third possible implementation of the second aspect or the fourth possible implementation of the second aspect, in the fifth possible implementation of the second aspect, the first preset period and When the second preset period is the same, the broadcast signal indicates a first preset period or a second preset period, and the broadcast signal is a first preset period. Further indicates the offset between and the second preset period, where the offset is the difference in subframe numbers between the subframes corresponding to the first preset period and the second preset period. Is used to indicate.

In connection with any one of the fifth possible embodiments of the second aspect to the second aspect, in the sixth possible embodiment of the second aspect, the uplink control channel or downlink of the first subframe. The control channel holds the instruction information, which is used to indicate the subframe type of the kth subframe after the first subframe, where k is a positive integer.

In relation to any one of the sixth possible embodiments of the second aspect to the second aspect, in the seventh possible embodiment of the second aspect, the first in the downlink channel of the first type subframe. A preset number of contiguous symbols, or a first preset number of contiguous symbols in the downlink channel of a Type 2 subframe, are used to transmit the downlink control channel, the first. Symbols other than the first preset number of symbols in the downlink channel of the seed subframe, or symbols other than the first preset number of symbols in the downlink channel of the second type subframe, are Used to transmit downlink data, where the first preset number of consecutive symbols is the first preset number of symbols placed first in chronological order. Alternatively, the first preset number of consecutive symbols is the first preset number of symbols placed last in chronological order.

In relation to any one of the sixth possible embodiments of the second aspect to the second aspect, in the eighth possible embodiment of the second aspect, the first in the downlink channel of the Type 1 subframe. The frequency band set, or the first frequency band set in the downlink channel of the type 2 subframe, is used to transmit the downlink data, and the second frequency band set in the downlink channel of the type 1 subframe, or The second frequency band set in the downlink channel of the second type subframe is used to transmit the downlink control channel.

In relation to any one of the sixth possible embodiments of the second aspect to the second aspect, in the ninth possible embodiment of the second aspect, the first in the downlink channel of the Type 1 subframe. A preset number of contiguous symbols, or a first preset number of contiguous symbols in the downlink channel of a Type 2 subframe, are used to transmit the downlink control channel, the first. A third frequency band set of symbols other than the first preset number of symbols in the seed subframe downlink channel, or a first preset number of symbols in the second type subframe downlink channel. The third frequency band set of symbols other than the symbol is used to transmit the downlink data, and is set in the first preset in the downlink channel of the first type subframe or the downlink channel of the second type subframe. The fourth frequency band set of symbols other than the number of symbols, or the fourth frequency band set of symbols other than the first preset number of symbols in the downlink channel of the second type subframe, is downlink controlled. Used to transmit channels.

In relation to any one of the ninth possible embodiments of the second aspect to the second aspect, in the tenth possible embodiment of the second aspect, the second in the uplink channel of the Type 3 subframe. A preset number of contiguous symbols of, or a second preset number of contiguous symbols in the uplink channel of the Type 4 subframe, is used to transmit the uplink control channel, the third. Symbols other than the second preset number of symbols in the uplink channel of the seed subframe, or symbols other than the second preset number of symbols in the uplink channel of the fourth type subframe, are Used to transmit uplink data, where the second preset number of consecutive symbols is the second preset number of symbols first placed in chronological order. Alternatively, the second preset number of consecutive symbols is the second preset number of symbols placed last in chronological order.

In relation to any one of the ninth possible embodiments of the second aspect to the second aspect, in the eleventh possible embodiment of the second aspect, the first in the uplink channel of the Type 3 subframe. The frequency band set, or the first frequency band set in the uplink channel of the Type 4 subframe, is used to transmit the uplink data, and the second frequency band set in the uplink channel of the Type 3 subframe, or. The second frequency band set in the uplink channel of the Type 4 subframe is used to transmit the uplink control channel.

In relation to any one of the ninth possible embodiments of the second aspect to the second aspect, in the twelfth possible embodiment of the second aspect, the second in the uplink channel of the Type 3 subframe. A preset number of contiguous symbols of, or a second preset number of contiguous symbols in the uplink channel of the Type 4 subframe, is used to transmit the uplink control channel, the third. A third frequency band set of symbols other than the second preset number of symbols in the seed subframe uplink channel, or a second preset number of symbols in the type 4 subframe uplink channel. The third frequency band set of symbols other than symbols is used to transmit uplink data and is the fourth of the symbols other than the second preset number of symbols in the uplink channel of the Type 3 subframe. A frequency band set, or a fourth frequency band set of symbols other than the second preset number of symbols in the uplink channel of the Type 4 subframe, is used to transmit the uplink control channel.

According to a third aspect, a data transmission device is provided, the device being a processor configured to determine the type of first subframe for data transmission, wherein the type of first subframe is first. It is a type 1 subframe, a type 2 subframe, a type 3 subframe, or a type 4 subframe, and the type 1 subframe includes an uplink control channel and a downlink channel, and the type 1 subframe is up. The link control channel is located in front of the downlink channel of the type 1 subframe, the type 2 subframe includes the uplink control channel and the downlink channel, and the uplink control channel of the type 2 subframe is Located after the downlink channel of the Type 2 subframe, there is a guard period between the uplink control channel of the Type 2 subframe and the downlink channel of the Type 2 subframe, and the Type 3 subframe is Including the uplink channel and the downlink control channel, the uplink channel of the Type 3 subframe is located in front of the downlink control channel of the Type 3 subframe, and the Type 4 subframe is the uplink channel and the downlink. The uplink control channel of the Type 4 subframe, including the link control channel, is located after the downlink control channel of the Type 4 subframe, and the uplink channel of the Type 4 subframe and the downlink of the Type 4 subframe. It comprises a processor with a guard period between the control channel and a transmitter configured to transmit data in the first subframe according to a determined type of first subframe.

In connection with the third aspect, in the first possible embodiment of the third aspect, the device is a transmitter further configured to transmit data in a second subframe after the first subframe. , The second subframe further comprises a transmitter adjacent to the first subframe, the first subframe if the data transmission direction at the start of the second subframe is different from the data transmission direction at the end of the first subframe. If there is an additional guard period between the frame and the second subframe and the data transmission direction at the start of the second subframe is the same as the data transmission direction at the end of the first subframe, the first subframe There is no time interval between and the second subframe.

In connection with the third aspect, in the second possible embodiment of the third aspect, the device is a transmitter further configured to transmit data in a second subframe after the first subframe. , The second subframe is adjacent to the first subframe and further comprises a transmitter, the data transmission direction at the start of the second subframe is uplink, and the data transmission direction at the end of the first subframe is down. If it is a link, an additional guard period is included between the first subframe and the second subframe.

In the third possible embodiment of the third aspect, in connection with the third possible embodiment of the third aspect, or the first possible embodiment of the third aspect, or the second possible embodiment of the third aspect, the processor. It is further configured to determine whether the type of the first subframe is a Type 1 subframe or a Type 2 subframe according to a first preset period, or the processor is configured with a second preset. It is further configured to determine whether the type of the first subframe is a type 3 subframe or a type 4 subframe according to the given period.

In connection with the third possible embodiment of the third aspect, in the fourth possible embodiment of the third aspect, the type of the first subframe is the first subframe according to the first preset period. When determined to be a frame or a Type 2 subframe, the first subframe is used to transmit one or a combination of synchronization signals, broadcast signals, or discovery reference signals, wherein the first subframe is used. , The broadcast signal is used to retain information about the first preset period and / or the second preset period.

In relation to the third possible implementation of the third aspect or the fourth possible implementation of the third aspect, in the fifth possible implementation of the third aspect, the first preset period and When the second preset period is the same, the broadcast signal indicates a first preset period or a second preset period, and the broadcast signal is a first preset period. Further indicates the offset between and the second preset period, where the offset is the difference in subframe numbers between the subframes corresponding to the first preset period and the second preset period. Is used to indicate.

In relation to any one of the fifth possible embodiments of the third to third aspects, in the sixth possible embodiment of the third aspect, the uplink control channel or downlink of the first subframe. The control channel holds the instruction information, which is used to indicate the subframe type of the kth subframe after the first subframe, where k is a positive integer.

In relation to any one of the sixth possible embodiments of the third to third embodiments, in the seventh possible embodiment of the third aspect, the first in the downlink channel of the Type 1 subframe. A preset number of contiguous symbols, or a first preset number of contiguous symbols in the downlink channel of a Type 2 subframe, are used to transmit the downlink control channel, the first. Symbols other than the first preset number of symbols in the downlink channel of the seed subframe, or symbols other than the first preset number of symbols in the downlink channel of the second type subframe, are Used to transmit downlink data, where the first preset number of consecutive symbols is the first preset number of symbols placed first in chronological order. Alternatively, the first preset number of consecutive symbols is the first preset number of symbols placed last in chronological order.

In relation to any one of the sixth possible embodiments of the third to third embodiments, in the eighth possible embodiment of the third aspect, the first in the downlink channel of the Type 1 subframe. The frequency band set, or the first frequency band set in the downlink channel of the Type 2 subframe, is used to transmit the downlink data, and the second frequency band set in the downlink channel of the Type 1 subframe, or The second frequency band set in the downlink channel of the second type subframe is used to transmit the downlink control channel.

In relation to any one of the sixth possible embodiments of the third to third embodiments, in the ninth possible embodiment of the third aspect, the first in the downlink channel of the Type 1 subframe. A preset number of contiguous symbols, or a first preset number of contiguous symbols in the downlink channel of a Type 2 subframe, are used to transmit the downlink control channel, the first. A third frequency band set of symbols other than the first preset number of symbols in the seed subframe downlink channel, or a first preset number of symbols in the second type subframe downlink channel. The third frequency band set of symbols other than the symbol is used to transmit the downlink data, and is set in the first preset in the downlink channel of the first type subframe or the downlink channel of the second type subframe. The fourth frequency band set of symbols other than the number of symbols, or the fourth frequency band set of symbols other than the first preset number of symbols in the downlink channel of the second type subframe, is downlink controlled. Used to transmit channels.

In relation to any one of the ninth possible embodiments of the third to third embodiments, in the tenth possible embodiment of the third aspect, the second in the uplink channel of the Type 3 subframe. A preset number of contiguous symbols of, or a second preset number of contiguous symbols in the uplink channel of the Type 4 subframe, is used to transmit the uplink control channel, the third. Symbols other than the second preset number of symbols in the seed subframe uplink channel, or symbols other than the second preset number of symbols in the Type 4 subframe and uplink channel, are Used to transmit uplink data, where the second preset number of consecutive symbols is the second preset number of symbols first placed in chronological order. Alternatively, the second preset number of consecutive symbols is the second preset number of symbols placed last in chronological order.

In relation to any one of the ninth possible embodiments of the third aspect to the third aspect, in the eleventh possible embodiment of the third aspect, the first in the uplink channel of the third type subframe. The frequency band set, or the first frequency band set in the uplink channel of the Type 4 subframe, is used to transmit the uplink data, and the second frequency band set in the uplink channel of the Type 3 subframe, or. The second frequency band set in the uplink channel of the Type 4 subframe is used to transmit the uplink control channel.

In relation to any one of the ninth possible embodiments of the third aspect to the third aspect, in the twelfth possible embodiment of the third aspect, the second in the uplink channel of the third type subframe. A preset number of contiguous symbols of, or a second preset number of contiguous symbols in the uplink channel of the Type 4 subframe, is used to transmit the uplink control channel, the third. A third frequency band set of symbols other than the second preset number of symbols in the seed subframe uplink channel, or a second preset number of symbols in the type 4 subframe uplink channel. The third frequency band set of symbols other than symbols is used to transmit uplink data and is the fourth of the symbols other than the second preset number of symbols in the uplink channel of the Type 3 subframe. A frequency band set, or a fourth frequency band set of symbols other than the second preset number of symbols in the uplink channel of the Type 4 subframe, is used to transmit the uplink control channel.

The technical solutions provided in the embodiments of the present invention have the following beneficial effects.

In the embodiment of the present invention, the type of the first subframe for data transmission is determined, and here, the types of the first subframe are the first type subframe, the second type subframe, and the third type subframe. , Or a type 4 subframe. The type 1 subframe uplink control channel is located before the type 1 subframe downlink channel and is located between the type 1 subframe uplink control channel and the type 1 subframe downlink channel. Does not include guard periods, which reduces the number of switches and further reduces the number of guard periods. The type 2 subframe uplink control channel is located after the type 2 subframe downlink channel and guards between the type 2 subframe uplink control channel and the type 2 subframe downlink channel. There is a period, and the switch between uplink and downlink transmissions is performed only once, which reduces the number of switchings and further reduces the number of guard periods. The uplink channel of the Type 3 subframe is located in front of the downlink control channel of the Type 3 subframe, and is located between the uplink channel of the Type 3 subframe and the downlink control channel of the Type 3 subframe. It does not include guard periods, which reduces the number of switches and further reduces the number of guard periods. The type 4 subframe uplink channel is located after the type 4 subframe downlink control channel and is located between the type 4 subframe uplink channel and the type 4 subframe downlink control channel. There is a guard period, and the switch between uplink and downlink transmissions is performed only once, which reduces the number of switches and further reduces the number of guard periods. In this way, the utilization rate of wireless resources is improved.

In order to more clearly explain the technical solution in the embodiment of the present invention, the accompanying drawings necessary for explaining the embodiment will be briefly described below. Obviously, the accompanying drawings in the following description merely represent some embodiments of the present invention, and one of ordinary skill in the art may further derive other drawings from these attached drawings without creative effort.

It is a schematic structure diagram of the subframe which concerns on the prior art.

It is a flowchart of the data transmission method which concerns on embodiment of this invention.

It is a flowchart of another data transmission method which concerns on embodiment of this invention.

(A) is a schematic structural diagram of a type 1 subframe according to an embodiment of the present invention.

(B) is a schematic structural diagram of a type 2 subframe according to an embodiment of the present invention.

(A) is a schematic structural diagram of a type 3 subframe according to an embodiment of the present invention.

(B) is a schematic structural diagram of a type 4 subframe according to the embodiment of the present invention.

FIG. 3 is a schematic structural diagram of two consecutive subframes of a certain type according to an embodiment of the present invention.

FIG. 3 is a schematic structural diagram of two consecutive subframes of another type according to an embodiment of the present invention.

FIG. 3 is a schematic structural diagram of two consecutive subframes of yet another type according to an embodiment of the present invention.

(A) is a schematic structural diagram of another type 2 subframe according to the embodiment of the present invention.

(B) is a schematic structural diagram of still another type 2 subframe according to the embodiment of the present invention.

(C) is a schematic structural diagram of another type 2 subframe according to the embodiment of the present invention.

(A) is a schematic structural diagram of another type 4 subframe according to the embodiment of the present invention.

(B) is a schematic structural diagram of still another type 4 subframe according to the embodiment of the present invention.

(C) is a schematic structural diagram of another type 4 subframe according to the embodiment of the present invention.

(A) is a schematic structural diagram of another type 1 subframe according to the embodiment of the present invention.

(B) is a schematic structural diagram of still another type 1 subframe according to the embodiment of the present invention.

(C) is a schematic structural diagram of another type 1 subframe according to the embodiment of the present invention.

(A) is a schematic structural diagram of another type 3 subframe according to the embodiment of the present invention.

(B) is a schematic structural diagram of another type 3 subframe according to the embodiment of the present invention.

(C) is a schematic structural diagram of another type 3 subframe according to the embodiment of the present invention.

It is a schematic structural diagram of the data transmission device which concerns on embodiment of this invention.

It is a schematic structural diagram of another data transmission device which concerns on embodiment of this invention.

In order to further clarify the object, technical solution, and advantage of the present invention, embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

FIG. 2 is a flowchart of a data transmission method according to an embodiment of the present invention. With reference to FIG. 2, the method comprises the following steps:

Stage 201: A stage for determining the type of the first subframe for data transmission, wherein the type of the first subframe is a type 1 subframe, a type 2 subframe, a type 3 subframe, or a first type. It is a stage, which is a four-kind subframe.

The first-class subframe includes an uplink control channel and a downlink channel, and the uplink control channel of the first-class subframe is located before the downlink channel of the first-class subframe.

The type 2 subframe includes an uplink control channel and a downlink channel, and the uplink control channel of the type 2 subframe is located after the downlink channel of the type 2 subframe and is of the type 2 subframe. There is a guard period between the uplink control channel and the downlink channel of the Type 2 subframe.

The Type 3 subframe includes an uplink channel and a downlink control channel, and the uplink channel of the Type 3 subframe is located before the downlink control channel of the Type 3 subframe.

The Type 4 subframe includes an uplink channel and a downlink control channel, and the uplink channel of the Type 4 subframe is located after the downlink control channel of the Type 4 subframe and is of the Type 4 subframe. There is a guard period between the uplink channel and the downlink control channel of the Type 4 subframe.

Step 202: A step of transmitting data in the first subframe according to a determined type of first subframe.

In this embodiment of the present invention, the type of the first subframe for data transmission is determined, and here, the types of the first subframe are the first type subframe, the second type subframe, and the third type subframe. It is a frame or a type 4 subframe. The type 1 subframe uplink control channel is located before the type 1 subframe downlink channel and is located between the type 1 subframe uplink control channel and the type 1 subframe downlink channel. It does not include guard periods, which reduces the number of switches and further reduces the number of guard periods. The type 2 subframe uplink control channel is located after the type 2 subframe downlink channel and is located between the type 2 subframe uplink control channel and the type 2 subframe downlink channel. There is a guard period, and the switch between uplink and downlink transmissions is performed only once, which reduces the number of switches and further reduces the number of guard periods. The uplink channel of the Type 3 subframe is located in front of the downlink control channel of the Type 3 subframe, and is located between the uplink channel of the Type 3 subframe and the downlink control channel of the Type 3 subframe. It does not include guard periods, which reduces the number of switches and further reduces the number of guard periods. The type 4 subframe uplink channel is located after the type 4 subframe downlink control channel and guards between the type 4 subframe uplink channel and the type 4 subframe downlink control channel. There is a period, and the switch between uplink and downlink transmissions is performed only once, which reduces the number of switchings and further reduces the number of guard periods. In this way, the utilization rate of wireless resources is improved.

Optionally, the method further comprises a step of transmitting data in a second subframe following the first subframe, wherein the second subframe is adjacent to the first subframe, and the second sub. If the data transmission direction at the start of the frame is different from the data transmission direction at the end of the first subframe, there is an additional guard period between the first and second subframes and the start of the second subframe. When the data transmission direction at the time point is the same as the data transmission direction at the end time of the first subframe, the time interval is not included between the first subframe and the second subframe.

Optionally, the method is a step of transmitting data in a second subframe after the first subframe, wherein the second subframe is adjacent to the first subframe, further comprising a second subframe. If the data transmission direction at the start of the frame is uplink and the data transmission direction at the end of the first subframe is downlink, there is an additional guard period between the first and second subframes. Is done.

Optionally, in the step of determining the type of the first subframe for data transmission, the type of the first subframe is the type 1 subframe or the type 2 subframe according to the first preset period. A step of determining whether or not the type of the first subframe is a type 3 subframe or a type 4 subframe according to a second preset period.

Optionally, when it is determined that the type of the first subframe is a type 1 subframe or a type 2 subframe according to a first preset period, the first subframe is a sync signal. Used to transmit one or a combination of a broadcast signal, or a discovery reference signal, where the broadcast signal is a first preset period and / or a second preset period. Used to hold information about.

Optionally, when the first preset period is the same as the second preset period, the broadcast signal takes the first preset period or the second preset period. Shown, the broadcast signal further indicates the offset between the first preset period and the second preset period, the offset being the first preset period and the second preset period. It is used to show the difference in subframe numbers between subframes corresponding to the cycle.

Optionally, the uplink control channel or the downlink control channel of the first subframe holds the instruction information, and the instruction information indicates the subframe type of the kth subframe after the first subframe. Used, k is a positive integer.

Optionally, a first preset number of consecutive symbols in the downlink channel of the Type 1 subframe, or a first preset number of consecutive symbols in the downlink channel of the Type 2 subframe. Symbols are used to transmit the downlink control channel and are symbols other than the first preset number of symbols in the downlink channel of the first type subframe, or the downlink channel of the second type subframe. Symbols other than the first preset number of symbols in, are used to transmit downlink data, where the first preset number of consecutive symbols is first in chronological order. The first preset number of symbols placed in, or the first preset number of consecutive symbols, is the first preset number of symbols placed last in chronological order. It is a symbol.

Optionally, a first frequency band set in the downlink channel of the Type 1 subframe, or a first frequency band set in the downlink channel of the Type 2 subframe, is used to transmit the downlink data. The second frequency band set in the downlink channel of the first type subframe, or the second frequency band set in the downlink channel of the second type subframe is used to transmit the downlink control channel.

Optionally, a first preset number of consecutive symbols in the downlink channel of the Type 1 subframe, or a first preset number of consecutive symbols in the downlink channel of the Type 2 subframe. Symbols are used to transmit the downlink control channel and are the third frequency band set of symbols other than the first preset number of symbols in the downlink channel of the first type subframe, or the second type. A third frequency band set of symbols other than the first preset number of symbols in the downlink channel of the subframe is used to transmit the downlink data and is the downlink channel of the first type subframe or A fourth frequency band set of symbols other than the first preset number of symbols in the Type 2 subframe downlink channel, or a first preset in the Type 2 subframe downlink channel. A fourth frequency band set of symbols other than the number symbol is used to transmit the downlink control channel.

Optionally, a second preset number of contiguous symbols in the uplink channel of the Type 3 subframe, or a second preset number of contiguous symbols in the uplink channel of the Type 4 subframe. Symbols are used to transmit the uplink control channel and are symbols other than the second preset number of symbols in the uplink channel of the third subframe, or the uplink channel of the fourth subframe. Symbols other than the second preset number of symbols in, are used to transmit the uplink data, where the second preset number of consecutive symbols is first in chronological order. A second preset number of symbols placed in, or a second preset number of consecutive symbols is a second preset number of symbols placed last in chronological order. It is a symbol.

Optionally, a first frequency band set in the uplink channel of the Type 3 subframe, or a first frequency band set in the uplink channel of the Type 4 subframe, is used to transmit uplink data. The second frequency band set in the uplink channel of the third type subframe, or the second frequency band set in the uplink channel of the fourth type subframe, is used to transmit the uplink control channel.

Optionally, a second preset number of contiguous symbols in the uplink channel of the Type 3 subframe, or a second preset number of contiguous symbols in the uplink channel of the Type 4 subframe. Symbols are used to transmit the uplink control channel and are the third frequency band set of symbols other than the second preset number of symbols in the uplink channel of the third type subframe, or the fourth type. A third frequency band set of symbols other than the second preset number of symbols in the uplink channel of the subframe is used to transmit the uplink data and in the uplink channel of the third type subframe. , A fourth frequency band set of symbols other than the second preset number of symbols, or a fourth frequency of symbols other than the second preset number of symbols in the uplink channel of the Type 4 subframe. Band sets are used to transmit uplink control channels.

All of the above-mentioned optional technical solutions can constitute an optional embodiment of the present invention by any combination, further details are not described in this embodiment of the present invention.

FIG. 3 is a flowchart of a data transmission method according to an embodiment of the present invention. With reference to FIG. 3, the method comprises the following steps:

Stage 301: A stage for determining the type of the first subframe for data transmission, wherein the type of the first subframe is a type 1 subframe, a type 2 subframe, a type 3 subframe, or a first type. It is a stage, which is a four-kind subframe.

The first-class subframe includes an uplink control channel and a downlink channel, and the uplink control channel of the first-class subframe is located before the downlink channel of the first-class subframe. The Type 2 subframe includes an uplink control channel and a downlink channel, and the uplink control channel of the Type 2 subframe is located after the downlink channel of the Type 2 subframe and is of the Type 2 subframe. There is a guard period between the uplink control channel and the downlink channel of the Type 2 subframe. The Type 3 subframe includes an uplink channel and a downlink control channel, and the uplink channel of the Type 3 subframe is located before the downlink control channel of the Type 3 subframe. The Type 4 subframe includes an uplink channel and a downlink control channel, and the uplink channel of the Type 4 subframe is located after the downlink control channel of the Type 4 subframe and is of the Type 4 subframe. There is a guard period between the uplink channel and the downlink control channel of the Type 4 subframe. For example, as shown in FIGS. 4 and 5, FIG. 4 (a) shows a type 1 subframe, FIG. 4 (b) shows a type 2 subframe, and FIG. 5 (a) shows a first type subframe. A type 3 subframe is shown, and FIG. 5B shows a type 4 subframe.

When data is transmitted between the UE and the base station, the data may be transmitted by using subframes, each subframe having the same duration. Therefore, the base station may set the first type subframe for data transmission to the first type subframe, the second type subframe, the third type subframe, or the fourth type subframe. For a Type 1 subframe, there is no guard period between the uplink control channel of the Type 1 subframe and the downlink channel of the Type 1 subframe, which reduces the number of guard periods. It increases the time for data transmission in subframes and further improves the utilization of radio resources. For the type 2 subframe, there is a guard period between the uplink control channel of the type 2 subframe and the downlink channel of the type 2 subframe, that is, the downlink transmission in the type 2 subframe. The switch from to uplink transmission is performed once, which reduces the number of switchings, reduces the number of guard periods, increases the time of data transmission in subframes, and further improves the utilization of radio resources. For Type 3 subframes, there is no guard period between the uplink channel of the Type 3 subframe and the downlink control channel of the Type 3 subframe, which reduces the number of guard periods. It increases the time for data transmission in subframes and further improves the utilization of radio resources. For the Type 4 subframe, there is a guard period between the uplink channel of the Type 4 subframe and the downlink control channel of the Type 4 subframe, that is, the downlink transmission in the Type 4 subframe. The switch from to uplink transmission is performed once, which reduces the number of switchings, reduces the number of guard periods, increases the time of data transmission in subframes, and further improves the utilization of radio resources.

The uplink control channel is the following information, that is, acknowledgment / negative response (English notation: Acknowledgment / Negative Acknowledgment, abbreviated as ACK / NACK) feedback for receiving downlink data, and the quality measurement result of the downlink channel. Channel State Information (CSI for short) for channel state information (English notation: CSI) can be used to transmit at least one of a feedback or scheduling request. Of course, uplink control channels may also be used to transmit other information and are not listed in this embodiment of the invention.

In this embodiment of the present invention, all guard periods for switching from uplink transmission to downlink transmission may be equal, and all guard periods for switching from downlink transmission to uplink transmission may be equal. Good things should be noted. For the sake of simplicity, the guard period for switching from uplink transmission to downlink transmission is referred to as the first time interval, and the guard period for switching from downlink transmission to uplink transmission is referred to as the second hour. Called the interval. The first time interval and the second time interval may be the same or different. This is not specifically limited in this embodiment of the present invention.

In addition, when a network device receives data, the network device needs to determine if the uplink or downlink is in front of the subframe in order to receive the data accurately. Therefore, in this embodiment of the present invention, preferably, the subframe for data transmission may be determined as a type 1 subframe or a type 3 subframe. Of course, the subframe for data transmission may also be determined as a Type 2 subframe or a Type 4 subframe. In this way, the order of the uplinks and downlinks in the subframe may be consistently fixed, which allows the network device to omit the decision-making process and thus reduce the design complexity of the network device.

In another embodiment of the present invention, the step of determining the type of the first subframe for data transmission is that the type of the first subframe is a type 1 subframe or a first subframe according to a first preset period. A step of determining whether the subframe is a type 2 subframe, or a step of determining whether the type of the first subframe is a type 3 subframe or a type 4 subframe according to a second preset period. including. That is, in a plurality of subframes for data transmission, a fixed type 1 subframe or a type 2 subframe is assigned and fixed at each first preset period. Alternatively, a Type 4 subframe is assigned every second preset period. Another subframe among the plurality of subframes may be dynamically assigned as a type 1 subframe, a type 2 subframe, a type 3 subframe, or a type 4 subframe. Of course, another subframe may also be assigned as another type of subframe. This is not specifically limited in this embodiment of the present invention.

When another subframe of multiple subframes is dynamically assigned as a Type 1 subframe, a Type 2 subframe, a Type 3 subframe, or a Type 4 subframe, the other subframe The type can be determined based on the amount of data in the downlink transmission and the amount of data in the uplink transmission. For example, when the amount of data for downlink transmission is larger than the amount of data for uplink transmission, the subframe is assigned as a type 1 subframe or a type 2 subframe to another subframe among a plurality of subframes. Is greater than the number of subframes assigned as Type 3 or Type 4 subframes. The number of subframes assigned as Type 1 or Type 2 subframes to another subframe of multiple subframes when the amount of data in the downlink transmission is smaller than the amount of data in the uplink transmission. Is less than the number of subframes assigned as Type 3 or Type 4 subframes. When the amount of data in the downlink transmission is equal to the amount of data in the uplink transmission, another factor may be considered in performing the allocation. This is not specifically limited in this embodiment of the present invention.

When the type of the first subframe is determined to be the first type subframe or the second type subframe according to the first preset period, the first subframe is a synchronization signal, a broadcast signal, or a discovery reference. One of the signals or a combination thereof may be used to transmit to the UE, where the broadcast signal is information about a first preset period and / or a second preset period. Is used to hold. The synchronization signal is used for synchronization between the time domain and the frequency domain, and is further used to obtain the start position of each frame and each subframe and the like. The broadcast signal is further used to broadcast, for example, the cell's identifier, the cell's antenna configuration, and the cell's system information, such as the number of the current frame. The discovery reference signal is used to indicate the state (off or turned on) of the cell, to measure the signal energy of the cell, and the like.

Further, the first preset period and the second preset period may be the same or different. When the first preset cycle and the second preset cycle are different, the base station uses the subframe corresponding to the first preset cycle to use the first preset cycle. And a second preset period may be transmitted separately to the UE. When the first preset period and the second preset period are the same, the base station uses the above-mentioned broadcast signal to set the first preset period or the second preset period. The period may be indicated to the UE, and the broadcast signal is further used to indicate to the UE the offset between the first preset period and the second preset period, where the offset is. , Used to indicate the difference in subframe numbers between subframes corresponding to the first preset period and the second preset period. For example, the offset is 2, so the second subframe after the subframe corresponding to each first preset period is the subframe corresponding to the second preset period. be.

The first preset period and the second preset period are transmitted to the UE or the first preset period using the subframe corresponding to the first preset period. A cycle or a second preset cycle, and an offset between the first preset cycle and the second preset cycle are transmitted to the UE, thereby accessing the cell for the first time. Or, the UE that can switch from the adjacent cell to the current cell sets the transmission time of the subframe corresponding to the first preset cycle and the transmission time of the subframe corresponding to the second preset cycle. Can be obtained.

Further, in this embodiment of the present invention, the UE can be notified of the subframe type by using the following mechanism of pre-broadcasting the subframe type, whereby the UE can obtain the subframe type in advance. It can, and therefore, correctly send and receive data. Specifically, for the first subframe, the subframe type of the kth subframe after the first subframe can be acquired, and the instruction information is the uplink control channel or the downlink of the first subframe. It can be retained in the control channel, where the instruction information is used to indicate the subframe type of the kth subframe after the first subframe. k is the specified value and k is a positive integer.

When the UE is notified of the subframe type of the kth subframe after the first subframe by using a mechanism that pre-broadcasts the subframe type, the UE notifies by using the specified broadcast signal. It should be noted that it can be done. For the subframe corresponding to the first preset period, the specified broadcast signal may be the broadcast signal mentioned above, or may be a broadcast signal other than the broadcast signal mentioned above. It's okay. This is not specifically limited in this embodiment of the present invention.

Step 302: A step of transmitting data in the first subframe according to a determined type of first subframe.

After the type of the first subframe is determined, it may be determined whether the uplink or downlink is in front of the first subframe, then the data may be received or the data may be transmitted correctly. As a result, the accuracy of data transmission in the first subframe can be guaranteed.

Stage 303: A stage in which data is transmitted in a second subframe after the first subframe, in which the second subframe is adjacent to the first subframe.

If the data transmission direction at the start of the second subframe is different from the data transmission direction at the end of the first subframe, a guard period is further included between the first subframe and the second subframe. When the data transmission direction at the start time of the second subframe is the same as the data transmission direction at the end time of the first subframe, the time interval between the first subframe and the second subframe is not included. As shown in FIG. 6, the subframe type of the first subframe is the first type subframe, the data transmission direction at the end of the first subframe is the downlink, and the subframe of the second subframe is subframe. The frame type is the third type, and the data transmission direction at the start of the second subframe is the uplink. In this case, a guard period is further included between the first subframe and the second subframe. As shown in FIG. 7, the subframe type of the first subframe is the first type subframe, the data transmission direction at the end of the first subframe is the downlink, and the subframe of the second subframe is subframe. The frame type is the fourth type, and the data transmission direction at the start time of the second subframe is the downlink. In this case, there is no switching between uplink transmission and downlink transmission between the first subframe and the second subframe. Therefore, there is no guard period between the first subframe and the second subframe, which further reduces the number of guard periods, reduces system overhead, and improves radio resource utilization.

Further, when the uplink lead time is configured for the UE, i.e., when the UE transmits data to the base station, there is a lead time for uplink transmission. Within the lead time, the network device (UE or base station) may perform a switch between uplink and downlink transmissions. Therefore, the guard period does not have to be included between the switching from the uplink transmission to the downlink transmission, which further reduces the number of guard periods. That is, when the data transmission direction at the start time of the second subframe is the uplink and the data transmission direction at the end time of the first subframe is the downlink, the guard period is the first subframe and the second subframe. Further included between and. When the data transmission direction at the start time of the second subframe is the downlink and the data transmission direction at the end time of the first subframe is the uplink, as shown in FIG. 8, with the first subframe. The guard period may not be included between the second subframe and the second subframe. Of course, the guard period may be included between the first subframe and the second subframe, but the guard period may be very short. This is not specifically limited in this embodiment of the present invention.

In this embodiment of the present invention, when a time interval is further included between the first subframe and the second subframe, the time interval is obtained by reducing the time of data transmission in the first subframe. It should be noted that it does not affect the time of data transmission in the second subframe. For example, as shown in FIG. 5, a guard period is further included between the first subframe and the second subframe, and the guard period shortens the time of the downlink channel of the first subframe. Obtained by, and does not affect the time of the uplink channel of the second subframe.

In this embodiment of the present invention, specific structures of a type 1 subframe, a type 2 subframe, a type 3 subframe, and a type 4 subframe may be further designed. The specific structures of the first-class subframe and the second-class subframe may be as follows. The first preset number of consecutive symbols in the downlink channel of the Type 1 subframe, or the first preset number of consecutive symbols in the downlink channel of the Type 2 subframe, is the downlink. Used to transmit the control channel, a symbol other than the first preset number of symbols in the downlink channel of the Type 1 subframe, or the first in the downlink channel of the Type 2 subframe. Symbols other than the preset number of symbols are used to transmit the downlink data, where the first preset number of consecutive symbols is first placed in chronological order. The preset number of symbols of 1, or the first preset number of consecutive symbols, is the first preset number of symbols arranged last in chronological order. FIG. 9A shows a type 2 subframe. It is assumed that the first preset number of consecutive symbols is the first symbol placed in chronological order, i.e., the first symbol in FIG. 9 (a) is the downlink control channel. It is used for transmission, and symbols in the downlink channel other than the first symbol in FIG. 9A are used for transmitting downlink data.

Alternatively, the first frequency band set in the downlink channel of the first type subframe, or the first frequency band set in the downlink channel of the second type subframe is used for transmitting the downlink data, and the first type. The second frequency band set in the downlink channel of the subframe, or the second frequency band set in the downlink channel of the second type subframe, is used to transmit the downlink control channel. The second frequency band set in the downlink channel of the first type subframe is a frequency other than the first frequency band set in the downlink channel of the first type subframe among the frequency bands of the downlink channel of the first type subframe. The second frequency band set in the downlink channel of the second type subframe is the first frequency band in the downlink channel of the second type subframe among the frequency bands of the downlink channel of the second type subframe. It is a frequency band other than the set. That is, the first frequency band set and the second frequency band set in the downlink channel of the first type subframe constitute the entire frequency band of the downlink channel of the first type subframe, and the downlink of the second type subframe. The first frequency band set and the second frequency band set in the channel constitute the entire frequency band of the downlink channel of the second type subframe. FIG. 9B shows a type 2 subframe. The first frequency band set in the downlink channel of FIG. 9 (b) is used to transmit the downlink data, and the second frequency band set in the downlink channel of FIG. 9 (b) is the downlink control channel. Used to send.

Alternatively, the first preset number of consecutive symbols in the downlink channel of the Type 1 subframe, or the first preset number of consecutive symbols in the downlink channel of the Type 2 subframe may be. Used to transmit the downlink control channel, the third frequency band set of symbols other than the first preset number of symbols in the downlink channel of the first type subframe, or the second type subframe. A third frequency band set of symbols other than the first preset number of symbols in the downlink channel is used to transmit the downlink data and is the first in the downlink channel of the Type 1 subframe. Also a fourth frequency band set of symbols other than the preset number of symbols, or a fourth frequency band set of symbols other than the first preset number of symbols in the downlink channel of the Type 2 subframe. , Used to transmit downlink control channels. For simplicity of explanation, a symbol other than the first preset number of symbols in the downlink channel of the first type subframe, or the first preset in the downlink channel of the second type subframe. Symbols other than the number of symbols are referred to as the first residual downlink symbol. The fourth frequency band set in the first residual downlink symbol is a frequency band other than the third frequency band set of the first residual downlink symbol in the frequency band of the first residual downlink symbol, that is, the first residual. The third frequency band set and the fourth frequency band set in the downlink symbol constitute the entire frequency band of the first residual downlink symbol. FIG. 9C shows a type 2 subframe. It is assumed that the first preset number of consecutive symbols is the first symbol placed in chronological order, i.e. the first symbol in FIG. 9 (c) is the downlink control channel. Symbols in downlink channels other than the first symbol in FIG. 9 (c) used for transmission are the first residual downlink symbol, and the third frequency band set in the first residual downlink symbol is the downlink data. Used for transmission, the fourth frequency band set in the first residual downlink symbol is used to transmit the downlink control channel.

The specific structures of the Type 3 subframe and the Type 4 subframe may be as follows. A second preset number of consecutive symbols in the uplink channel of the Type 3 subframe, or a second preset number of consecutive symbols in the uplink channel of the Type 4 subframe, is uplink controlled. Used to transmit the channel, a symbol other than the second preset number of symbols in the uplink channel of the Type 3 subframe, or a second preset in the uplink channel of the Type 4 subframe. Symbols other than the set number of symbols are used to transmit the uplink data, where the second preset number of consecutive symbols is first placed first in chronological order. The preset number of symbols, or the second preset number of consecutive symbols, is the second preset number of symbols placed last in chronological order. FIG. 10A shows a type 4 subframe. It is assumed that the second preset number of consecutive symbols is the first symbol placed in chronological order, i.e. the first symbol in the uplink channel of FIG. 10 (a) is up. It is used to transmit the link control channel, and symbols other than the first symbol in FIG. 10A in the uplink channel are used to transmit the uplink data.

Alternatively, the first frequency band set in the uplink channel of the third type subframe, or the first frequency band set in the uplink channel of the fourth type subframe is used for transmitting the uplink data, and the third type. The second frequency band set in the uplink channel of the subframe, or the second frequency band set in the uplink channel of the type 4 subframe, is used to transmit the uplink control channel. The second frequency band set in the uplink channel of the third type subframe is a frequency other than the first frequency band set in the uplink channel of the third type subframe among the frequency bands of the uplink channel of the third type subframe. The band is a band, and the second frequency band set in the uplink channel of the type 4 subframe is the first frequency band in the uplink channel of the type 4 subframe among the frequency bands of the uplink channel of the type 4 subframe. It is a frequency band other than the set. That is, the first frequency band set and the second frequency band set in the uplink channel of the third type subframe constitute the entire frequency band of the third type subframe, and the first in the uplink channel of the fourth type subframe. The frequency band set and the second frequency band set constitute the entire frequency band of the fourth type subframe. FIG. 10B shows a type 4 subframe. The first frequency band set in the uplink channel of FIG. 10 (b) is used to transmit the uplink data, and the second frequency band set in the uplink channel of FIG. 10 (b) is the uplink control channel. Used to send.

Alternatively, a second preset number of consecutive symbols in the uplink channel of the Type 3 subframe, or a second preset number of consecutive symbols in the uplink channel of the Type 4 subframe may be. Used to transmit the uplink control channel, the third frequency band set of symbols other than the second preset number of symbols in the uplink channel of the third subframe, or the fourth subframe. A third frequency band set of symbols other than the second preset number of symbols in the uplink channel is used to transmit the uplink data and is the second in the uplink channel of the Type 3 subframe. The fourth frequency band set of symbols other than the preset number of symbols, or the fourth frequency band set of symbols other than the second preset number of symbols in the uplink channel of the Type 4 subframe. , Used to transmit the uplink control channel. For simplicity of explanation, symbols other than the second preset number of symbols in the uplink channel of the Type 3 subframe, or the second preset in the uplink channel of the Type 4 subframe. Symbols other than the number of symbols are referred to as the first residual uplink symbol. The fourth frequency band set in the first residual uplink symbol is a frequency band other than the third frequency band set in the first residual uplink symbol in the frequency band of the first residual uplink symbol, that is, the first residual. The third frequency band set and the fourth frequency band set in the uplink symbol constitute the entire frequency band of the first residual uplink symbol. FIG. 10 (c) shows a type 4 subframe. It is assumed that the second preset number of consecutive symbols is the first symbol placed in chronological order, i.e. the first symbol in the uplink channel of FIG. 10 (c) is. The symbols in the uplink channels other than the first symbol in FIG. 10 (c) used for transmitting the uplink control channel are the first residual uplink symbols and the third frequency band in the first residual uplink symbol. The set is used to transmit the uplink data and the fourth frequency band set in the first residual uplink symbol is used to transmit the uplink control channel.

The first preset number is preset, and the first preset number is smaller than the number of symbols in the downlink channel of the first type subframe, or the first preset number. Is smaller than the number of symbols in the downlink channel of the second type subframe, and the first preset number may be 1, 2, or 3, and so on. This is not specifically limited in this embodiment of the present invention. Similarly, a second preset number is also preset, the second preset number is less than the number of symbols in the uplink channel of the Type 3 subframe, or the second preset number. The number is smaller than the number of symbols in the uplink channel of the Type 4 subframe, and the second preset number may be 1, 2, or 3, and so on. The second preset number and the first preset number may or may not be equal. This is also not specifically limited in this embodiment of the present invention.

In addition, in the structural diagram of the subframe according to this embodiment of the present invention, the horizontal direction indicates time and the vertical direction indicates frequency. Therefore, the first frequency band set and the second frequency band set in the downlink channel of the first type subframe may be located at any frequency position in the frequency band of the downlink channel of the first type subframe. Preferably, the first frequency band set in the downlink channel of the first type subframe is in the frequency band of the downlink channel of the first type subframe, and the maximum frequency of the downlink channel of the first type subframe and the first frequency. Includes a frequency band that differs by one frequency value and a frequency band that is in the frequency band of the downlink channel of the first type subframe and that differs by the minimum frequency of the downlink channel of the first type subframe and the second frequency value. Often, the second frequency band set in the downlink channel of the first type subframe is in the frequency band of the downlink channel of the first type subframe and may include a frequency band other than the first frequency band. Thus, the first frequency band set in the downlink channel of the first type subframe is located on both sides of the bandwidth of the downlink channel of the first type subframe, that is, the downlink channel of the first type subframe. The first frequency band set in the above includes the high frequency band of the downlink channel of the first type subframe and the low frequency band of the downlink channel of the first type subframe. Thus, when the downlink control channel is controlled using both the high frequency band and the low frequency band, the probability of transmission failure is relatively low in both the high frequency band and the low frequency band, whereby the downlink control is performed. The transmission success rate of the channel is improved, and the frequency diversity gain is also improved. Similarly, the design of the first frequency band set and the second frequency band set in the downlink channel of the second type subframe, and the design of the first frequency band set and the second frequency band set in the uplink channel of the third type subframe. , And the design of the first frequency band set and the second frequency band set in the uplink channel of the type 4 subframe is the design of the first frequency band set and the second frequency band set in the downlink channel of the first type subframe. The details are not described here again in this embodiment of the present invention.

In addition, when the downlink control channel is transmitted in the manner of FIG. 9 (c), the transmission success rate of the downlink control channel can be further improved, and the frequency diversity gain is also further improved. Similarly, the design of the third frequency band set and the fourth frequency band set in the first residual uplink symbol and the design of the third frequency band set and the fourth frequency band set in the first residual uplink symbol are the first. It is similar to the design of the first frequency band set and the second frequency band set in the downlink channel of the species subframe, the details of which are not described again herein in this embodiment of the present invention.

In this embodiment of the present invention, the downlink control channel may be a normal downlink control channel or an enhanced downlink control channel. This is not specifically limited in this embodiment of the present invention. In addition, the symbol for this embodiment of the present invention may be an OFDM symbol, or may be an SC-FDMA symbol, a single carrier symbol, or the like. This is also not specifically limited in this embodiment of the present invention.

Optionally, if the data transmitted by the Type 1 subframe contains the downlink control channel and the downlink data and the Type 1 subframe does not include the uplink control channel, the uplink of the Type 1 subframe The time and frequency resources occupied by the control and downlink channels form a new downlink channel for the Type 1 subframe, or the data transmitted by the Type 2 subframe is the downlink control channel and downlink. If the data is included and the Type 2 subframe does not include the uplink control channel, the guard period is not included between the uplink control channel and the downlink channel of the Type 2 subframe and is of the Type 2 subframe. The time and frequency resources occupied by the downlink channel and guard period are used to transmit the downlink data and are occupied by the uplink control channel, downlink channel, and guard period of the Type 2 subframe. And the frequency resource forms a new downlink channel of the type 2 subframe, and only the new downlink channel exists in the type 1 subframe and the type 2 subframe. In this case, the structure of the first-class subframe and the structure of the second-class subframe are the same.

Regarding the first-class subframe, the specific structure of the first-class subframe may be as follows. The first preset number of consecutive symbols in the new downlink channel of the first type subframe is used to transmit the downlink control channel, and the first in the downlink channel of the first type subframe. Symbols other than the preset number of symbols in are used to transmit the downlink data, where the first preset number of consecutive symbols in the new downlink channel of the Type 1 subframe. Is a first preset number of symbols first placed in chronological order, or a first preset number of consecutive symbols in the downlink channel of a Type 1 subframe. A first preset number of symbols placed last in chronological order. FIG. 11A shows a type 1 subframe. The first preset number of consecutive symbols in the new downlink channel of the Type 1 subframe is the first symbol placed in chronological order, i.e., the first in FIG. 11 (a). Symbols, the first symbol is used to transmit the downlink control channel, and the symbols other than the first symbol in FIG. 11A are used to transmit the downlink data.

Alternatively, the fifth frequency band set in the new downlink channel of the first class subframe is used to transmit the downlink data, and the sixth frequency band set in the new downlink channel of the first class subframe is downlink controlled. Used to transmit channels. The sixth frequency band set in the new downlink channel of the first type subframe is the fifth frequency band set in the new downlink channel of the first type subframe among the frequency bands of the new downlink channel of the first type subframe. The frequency bands other than the above, that is, the fifth frequency band set and the sixth frequency band set in the new downlink channel of the first type subframe constitute the entire frequency band of the new downlink channel of the first type subframe. .. FIG. 11B shows a type 1 subframe.

Alternatively, a first preset number of consecutive symbols in the new downlink channel of the Type 1 subframe is used to transmit the downlink control channel and in the new downlink channel of the Type 1 subframe. , A seventh frequency band set of symbols other than the first preset number of symbols is used to transmit the downlink data and is the first preset in the new downlink channel of the Type 1 subframe. An eighth frequency band set of symbols other than the specified number of symbols is used to transmit the downlink control channel. For simplicity of explanation, symbols other than the first preset number of symbols in the new downlink channel of the Type 1 subframe are referred to as the second residual downlink symbol and the second residual downlink. The eighth frequency band set in the symbol is a frequency band other than the seventh frequency band set in the second residual downlink symbol in the frequency band of the second residual downlink symbol, that is, the third frequency band in the second residual downlink symbol. The 7-frequency band set and the 8th frequency band set constitute the entire frequency band of the second residual downlink symbol. FIG. 11 (c) shows a type 1 subframe. The first preset number of consecutive symbols in the new downlink channel of the first type subframe is one symbol first placed in chronological order, i.e. the first in FIG. 11 (c). It is a symbol, the first symbol is used to transmit the downlink control channel, and the symbols other than the first symbol in FIG. 11C are the second residual downlink symbol and the second residual downlink symbol. The seventh frequency band set in is used to transmit downlink data, and the eighth frequency band set in the second residual downlink symbol is used to transmit the downlink control channel.

Optionally, if the data transmitted by the Type 3 subframe contains the uplink control channel and the uplink data and the Type 3 subframe does not contain the downlink control channel, the downlink of the Type 3 subframe The time and frequency resources occupied by the control and uplink channels form a new uplink channel for the Type 3 subframe, or the data transmitted by the Type 4 subframe is the uplink control channel and uplink. If the data is included and the Type 4 subframe does not include the downlink control channel, the guard period is not included between the downlink control channel and the uplink channel of the Type 4 subframe and is of the Type 4 subframe. The time and frequency resources occupied by the downlink control channel, uplink channel, and guard period form a new uplink channel in the Type 4 subframe, and the new uplink in the Type 3 and Type 4 subframes. Only link channels exist. In this case, the structures of the Type 3 subframe and the Type 4 subframe are the same.

Regarding the type 3 subframe, the specific structure of the type 3 subframe may be as follows. A second preset number of consecutive symbols in the new uplink channel of the Type 3 subframe is used to transmit the uplink control channel and in the new uplink channel of the Type 3 subframe. Symbols other than the second preset number of symbols are used to transmit the uplink data, where the second preset number of sequences in the new uplink channel of the Type 3 subframe. The symbol to be used is a second preset number of symbols placed first in chronological order, or a second consecutive number of consecutive symbols placed last in chronological order. It is a second preset number of symbols. As shown in FIG. 12 (a), the second preset number of consecutive symbols in the new uplink channel of the Type 3 subframe is one symbol first placed in chronological order. That is, it is the first symbol of FIG. 12A, the first symbol is used to transmit the uplink control channel, and the symbols other than the first symbol are for transmitting the uplink data. Used.

Alternatively, the fifth frequency band set in the new uplink channel of the Type 3 subframe is used to transmit the uplink data, and the sixth frequency band set in the new uplink channel of the Type 3 subframe is uplink controlled. Used to transmit channels. The sixth frequency band set in the new uplink channel of the third type subframe is the fifth frequency band set in the new uplink channel of the third type subframe among the frequency bands of the new uplink channel of the third type subframe. The frequency bands other than the above, that is, the fifth frequency band set and the sixth frequency band set in the new uplink channel of the third type subframe constitute the entire frequency band of the new uplink channel of the third type subframe. .. FIG. 12B shows a type 3 subframe.

Alternatively, a second preset number of contiguous symbols in the new uplink channel of the Type 3 subframe is used to transmit the uplink control channel and in the new uplink channel of the Type 3 subframe. A seventh frequency band set of symbols other than the second preset number of symbols is used to transmit the uplink data and is a second preset in the new uplink channel of the Type 3 subframe. The eighth frequency band set of symbols other than the number of symbols is used to transmit the uplink control channel. For simplicity of explanation, symbols other than the second preset number of symbols in the new uplink channel of the Type 3 subframe are referred to as the second residual uplink symbol and the second residual uplink. The eighth frequency band set in the symbol is a frequency band other than the seventh frequency band set in the second residual uplink symbol of the frequency bands of the second residual uplink symbol, that is, the second residual uplink symbol. The 7-frequency band set and the 8th frequency band set constitute the entire frequency band of the second residual uplink symbol. FIG. 12 (c) shows a type 3 subframe. The second preset number of consecutive symbols in the new uplink channel of the Type 3 subframe is one symbol first placed in chronological order, i.e. the first in FIG. 12 (c). Symbols other than the first symbol are second residual uplink symbols, the first symbol is used to transmit the uplink control channel, and the seventh frequency band set in the second residual uplink symbol. Is used to transmit uplink data, and the eighth frequency band set in the second residual uplink symbol is used to transmit the uplink control channel.

It should be noted that in the Type 1 subframe shown in FIG. 11, there is no switching between uplink and downlink transmissions. Therefore, there is no guard period in the Type 1 subframe. Similarly, in the Type 3 subframe shown in FIG. 12, there is no switching between uplink transmission and downlink transmission. Therefore, there is no guard period in the Type 3 subframe. In addition, the design of the 5th and 6th frequency band sets in the new downlink channel of the 1st class subframe is the 1st frequency band set and the 1st frequency band set in the downlink channel of the 1st class subframe described above. It is similar to the design of a second frequency band set, the details of which are not described here again in this embodiment of the present invention. Designing the 5th and 6th frequency band sets in the new downlink channel of the 2nd class subframe and the 5th and 6th frequency band sets in the new uplink channel of the 3rd class subframe. The design of the 5th frequency band set and the 6th frequency band set in the new uplink channel of the 4th type subframe is the 1st frequency band set and the 1st frequency band set in the new downlink channel of the 1st type subframe described above. It is similar to the design of a two frequency band set, the details of which are also not described herein again in this embodiment of the present invention. Similarly, the design of the 7th and 8th frequency band sets is similar to them, the details of which are not described here again in this embodiment of the present invention.

In this embodiment of the present invention, the type of the first subframe for data transmission is determined, and here, the types of the first subframe are the first type subframe, the second type subframe, and the third type subframe. It is a frame or a type 4 subframe. The type 1 subframe uplink control channel is located before the type 1 subframe downlink channel and is located between the type 1 subframe uplink control channel and the type 1 subframe downlink channel. Does not include guard periods, which reduces the number of switches and further reduces the number of guard periods. The type 2 subframe uplink control channel is located after the type 2 subframe downlink channel and is located between the type 2 subframe uplink control channel and the type 2 subframe downlink channel. There is a guard period, and the switch between uplink and downlink transmissions is performed only once, which reduces the number of switches and further reduces the number of guard periods. The uplink channel of the Type 3 subframe is located in front of the downlink control channel of the Type 3 subframe, and is located between the uplink channel of the Type 3 subframe and the downlink control channel of the Type 3 subframe. It does not include guard periods, which reduces the number of switches and further reduces the number of guard periods. The type 4 subframe uplink channel is located after the type 4 subframe downlink control channel and is located between the type 4 subframe uplink channel and the type 4 subframe downlink control channel. There is a guard period, and the switch between uplink and downlink transmissions is performed only once, which reduces the number of switches and further reduces the number of guard periods. In this way, the utilization rate of wireless resources is improved.

FIG. 13 is a schematic structural diagram of the data transmission device according to the embodiment of the present invention. Referring to FIG. 13, the device is a determination module 1301 configured to determine the type of first subframe for data transmission, the type of first subframe being type 1 subframe, type 2. A subframe, a type 3 subframe, or a type 4 subframe, the type 1 subframe includes an uplink control channel and a downlink channel, and the uplink control channel of the type 1 subframe is a type 1 subframe. Located before the downlink channel of the frame, the type 2 subframe includes the uplink control channel and the downlink channel, and the uplink control channel of the type 2 subframe is after the downlink channel of the type 2 subframe. Located, there is a guard period between the uplink control channel of the Type 2 subframe and the downlink channel of the Type 2 subframe, and the Type 3 subframe includes the uplink channel and the downlink control channel. The uplink channel of the Type 3 subframe is located in front of the downlink control channel of the Type 3 subframe, and the Type 4 subframe includes the uplink channel and the downlink control channel of the Type 4 subframe. The uplink channel is located after the downlink control channel of the Type 4 subframe, and there is a guard period between the uplink channel of the Type 4 subframe and the downlink control channel of the Type 4 subframe. It comprises a determination module 1301 and a first transmission module 1302 configured to transmit data in the first subframe according to a determined type of first subframe.

Optionally, the device is a second transmission module configured to transmit data in a second subframe after the first subframe, wherein the second subframe is adjacent to the first subframe. If a second transmission module is further provided and the data transmission direction at the start of the second subframe is different from the data transmission direction at the end of the first subframe, a guard period between the first subframe and the second subframe. Is further included, and if the data transmission direction at the start of the second subframe is the same as the data transmission direction at the end of the first subframe, then there is a time interval between the first and second subframes. Not included.

Optionally, the device is a second transmission module configured to transmit data in a second subframe following the first subframe, wherein the second subframe is adjacent to the first subframe. If the data transmission direction at the start of the second subframe is uplink and the data transmission direction at the end of the first subframe is downlink, the first subframe and the second subframe are further provided with two transmission modules. An additional guard period is included between the frame and the frame.

Optionally, the determination module 1301 is configured to determine whether the type of the first subframe is a type 1 subframe or a type 2 subframe according to a first preset period. A determination module, or a second determination module configured to determine whether the type of the first subframe is a Type 3 subframe or a Type 4 subframe according to a second preset period.

Optionally, when it is determined that the type of the first subframe is a type 1 subframe or a type 2 subframe according to a first preset period, the first subframe is a sync signal. Used to transmit one or a combination of a broadcast signal, or a discovery reference signal, where the broadcast signal is a first preset period and / or a second preset period. Used to hold information about.

Optionally, when the first preset period and the second preset period are the same, the broadcast signal has a first preset period or a second preset period. Shown, the broadcast signal further indicates the offset between the first preset period and the second preset period, the offset being the first preset period and the second preset period. It is used to show the difference in subframe numbers between subframes corresponding to the cycle.

Optionally, the uplink control channel or the downlink control channel of the first subframe holds the instruction information, and the instruction information indicates the subframe type of the kth subframe after the first subframe. Used, k is a positive integer.

Optionally, a first preset number of consecutive symbols in the downlink channel of the Type 1 subframe, or a first preset number of consecutive symbols in the downlink channel of the Type 2 subframe. Symbols are used to transmit the downlink control channel and are symbols other than the first preset number of symbols in the downlink channel of the first type subframe, or the downlink channel of the second type subframe. Symbols other than the first preset number of symbols in, are used to transmit downlink data, where the first preset number of consecutive symbols is first in chronological order. The first preset number of symbols placed in, or the first preset number of consecutive symbols, is the first preset number of symbols placed last in chronological order. It is a symbol.

Optionally, a first frequency band set in the downlink channel of the Type 1 subframe, or a first frequency band set in the downlink channel of the Type 2 subframe, is used to transmit the downlink data. The second frequency band set in the downlink channel of the first type subframe or the second frequency band set in the downlink channel of the second type subframe is used to transmit the downlink control channel.

Optionally, a first preset number of consecutive symbols in the downlink channel of the Type 1 subframe, or a first preset number of consecutive symbols in the downlink channel of the Type 2 subframe. Symbols are used to transmit the downlink control channel and are the third frequency band set of symbols other than the first preset number of symbols in the downlink channel of the first type subframe, or the second type. A third frequency band set of symbols other than the first preset number of symbols in the downlink channel of the subframe is used to transmit the downlink data and is the downlink channel of the first type subframe or A fourth frequency band set of symbols other than the first preset number of symbols in the Type 2 subframe downlink channel, or a first preset in the Type 2 subframe downlink channel. A fourth frequency band set of symbols other than the number symbol is used to transmit the downlink control channel.

Optionally, a second preset number of contiguous symbols in the uplink channel of the Type 3 subframe, or a second preset number of contiguous symbols in the uplink channel of the Type 4 subframe. Symbols are used to transmit the uplink control channel and are symbols other than the second preset number of symbols in the uplink channel of the third subframe, or the uplink channel of the fourth subframe. Symbols other than the second preset number of symbols in, are used to transmit the uplink data, where the second preset number of consecutive symbols is first in chronological order. A second preset number of symbols placed in, or a second preset number of consecutive symbols is a second preset number of symbols placed last in chronological order. It is a symbol.

Optionally, a first frequency band set in the uplink channel of the Type 3 subframe, or a first frequency band set in the uplink channel of the Type 4 subframe, is used to transmit uplink data. The second frequency band set in the uplink channel of the third type subframe, or the second frequency band set in the uplink channel of the fourth type subframe, is used to transmit the uplink control channel.

Optionally, a second preset number of contiguous symbols in the uplink channel of the Type 3 subframe, or a second preset number of contiguous symbols in the uplink channel of the Type 4 subframe. Symbols are used to transmit the uplink control channel and are the third frequency band set of symbols other than the second preset number symbol in the uplink channel of the third type subframe, or the fourth type. A third frequency band set of symbols other than the second preset number of symbols in the uplink channel of the subframe is used to transmit the uplink data and in the uplink channel of the third type subframe. , A fourth frequency band set of symbols other than the second preset number of symbols, or a fourth frequency of symbols other than the second preset number of symbols in the uplink channel of the Type 4 subframe. Band sets are used to transmit uplink control channels.

In this embodiment of the present invention, the type of the first subframe for data transmission is determined, and here, the types of the first subframe are the first type subframe, the second type subframe, and the third type subframe. It is a frame or a type 4 subframe. The type 1 subframe uplink control channel is located before the type 1 subframe downlink channel and is located between the type 1 subframe uplink control channel and the type 1 subframe downlink channel. It does not include guard periods, which reduces the number of switches and further reduces the number of guard periods. The type 2 subframe uplink control channel is located after the type 2 subframe downlink channel and is located between the type 2 subframe uplink control channel and the type 2 subframe downlink channel. There is a guard period, and the switch between uplink and downlink transmissions is performed only once, which reduces the number of switches and further reduces the number of guard periods. The uplink channel of the Type 3 subframe is located in front of the downlink control channel of the Type 3 subframe, and is located between the uplink channel of the Type 3 subframe and the downlink control channel of the Type 3 subframe. It does not include guard periods, which reduces the number of switches and further reduces the number of guard periods. The type 4 subframe uplink channel is located after the type 4 subframe downlink control channel and guards between the type 4 subframe uplink channel and the type 4 subframe downlink control channel. There is a period, and the switch between uplink and downlink transmissions is performed only once, which reduces the number of switchings and further reduces the number of guard periods. In this way, the utilization rate of wireless resources is improved.

FIG. 14 is a schematic structural diagram of another data transmission device according to the embodiment of the present invention. Referring to FIG. 14, the device is a processor 1401 configured to determine the type of first subframe for data transmission, the type of first subframe being type 1 subframe, type 2. A subframe, a type 3 subframe, or a type 4 subframe, the type 1 subframe includes an uplink control channel and a downlink channel, and the uplink control channel of the type 1 subframe is a type 1. Located in front of the downlink channel of the subframe, the type 2 subframe includes the uplink control channel and the downlink channel, and the uplink control channel of the type 2 subframe is the downlink of the type 2 subframe. Located after the channel, there is a guard period between the uplink control channel of the Type 2 subframe and the downlink channel of the Type 2 subframe, and the Type 3 subframe is the uplink channel and the downlink control channel. The uplink channel of the Type 3 subframe is located in front of the downlink control channel of the Type 3 subframe, and the Type 4 subframe includes the uplink channel and the downlink control channel. The uplink channel of the type 4 subframe is located after the downlink control channel of the type 4 subframe, and the guard period is between the uplink channel of the type 4 subframe and the downlink control channel of the type 4 subframe. It comprises a processor 1401 in which the first subframe exists and a transmitter 1402 configured to transmit data in the first subframe according to a determined type of the first subframe.

Optionally, the device is a transmitter 1402 further configured to transmit data in a second subframe after the first subframe, wherein the second subframe is adjacent to the first subframe, transmission. If the machine 1402 is further provided and the data transmission direction at the start of the second subframe is different from the data transmission direction at the end of the first subframe, there is an additional guard period between the first and second subframes. If the data transmission direction at the start of the second subframe is the same as the data transmission direction at the end of the first subframe, a time interval is included between the first subframe and the second subframe. do not have.

Optionally, the device is a transmitter 1402 further configured to transmit data in a second subframe after the first subframe, wherein the second subframe is adjacent to the first subframe, transmission. If the machine 1402 is further provided and the data transmission direction at the start of the second subframe is uplink and the data transmission direction at the end of the first subframe is downlink, the first subframe and the second subframe An additional guard period is included between and.

Optionally, the processor 1401 is further configured or further configured to determine whether the type of the first subframe is a type 1 subframe or a type 2 subframe according to a first preset period. Processor 1401 is further configured to determine whether the type of the first subframe is a Type 3 subframe or a Type 4 subframe according to a second preset period.

Optionally, when it is determined that the type of the first subframe is a type 1 subframe or a type 2 subframe according to a first preset period, the first subframe is a sync signal. Used to transmit one or a combination of a broadcast signal, or a discovery reference signal, where the broadcast signal is a first preset period and / or a second preset period. Used to hold information about.

Optionally, when the first preset period and the second preset period are the same, the broadcast signal has a first preset period or a second preset period. Shown, the broadcast signal further indicates the offset between the first preset period and the second preset period, the offset being the first preset period and the second preset period. It is used to show the difference in subframe numbers between subframes corresponding to the cycle.

Optionally, the uplink control channel or the downlink control channel of the first subframe holds the instruction information, and the instruction information indicates the subframe type of the kth subframe after the first subframe. Used, k is a positive integer.

Optionally, a first preset number of consecutive symbols in the downlink channel of the Type 1 subframe, or a first preset number of consecutive symbols in the downlink channel of the Type 2 subframe. Symbols are used to transmit the downlink control channel and are symbols other than the first preset number of symbols in the downlink channel of the first type subframe, or the downlink channel of the second type subframe. Symbols other than the first preset number of symbols in, are used to transmit downlink data, where the first preset number of consecutive symbols is first in chronological order. The placed first preset number of symbols, or the first preset number of consecutive symbols, is the last placed first preset number of symbols in chronological order. Is.

Optionally, a first frequency band set in the downlink channel of the Type 1 subframe, or a first frequency band set in the downlink channel of the Type 2 subframe, is used to transmit the downlink data. The second frequency band set in the downlink channel of the first type subframe or the second frequency band set in the downlink channel of the second type subframe is used to transmit the downlink control channel.

Optionally, a first preset number of consecutive symbols in the downlink channel of the Type 1 subframe, or a first preset number of consecutive symbols in the downlink channel of the Type 2 subframe. Symbols are used to transmit the downlink control channel and are the third frequency band set of symbols other than the first preset number of symbols in the downlink channel of the first type subframe, or the second type. A third frequency band set of symbols other than the first preset number of symbols in the downlink channel of the subframe is used to transmit the downlink data and is the downlink channel of the first type subframe or A fourth frequency band set of symbols other than the first preset number of symbols in the Type 2 subframe downlink channel, or a first preset in the Type 2 subframe downlink channel. A fourth frequency band set of symbols other than the number symbol is used to transmit the downlink control channel.

Optionally, a second preset number of contiguous symbols in the uplink channel of the Type 3 subframe, or a second preset number of contiguous symbols in the uplink channel of the Type 4 subframe. Symbols are used to transmit the uplink control channel and are symbols other than the second preset number of symbols in the uplink channel of the third subframe, or the uplink channel of the fourth subframe. Symbols other than the second preset number of symbols in, are used to transmit the uplink data, where the second preset number of consecutive symbols is first in chronological order. A second preset number of symbols placed in, or a second preset number of consecutive symbols is a second preset number of symbols placed last in chronological order. It is a symbol.

Optionally, a first frequency band set in the uplink channel of the Type 3 subframe, or a first frequency band set in the uplink channel of the Type 4 subframe, is used to transmit uplink data. The second frequency band set in the uplink channel of the third type subframe, or the second frequency band set in the uplink channel of the fourth type subframe, is used to transmit the uplink control channel.

Optionally, a second preset number of contiguous symbols in the uplink channel of the Type 3 subframe, or a second preset number of contiguous symbols in the uplink channel of the Type 4 subframe. Symbols are used to transmit the uplink control channel and are the third frequency band set of symbols other than the second preset number of symbols in the uplink channel of the third type subframe, or the fourth type. A third frequency band set of symbols other than the second preset number of symbols in the uplink channel of the subframe is used to transmit the uplink data and in the uplink channel of the third type subframe. , A fourth frequency band set of symbols other than the second preset number of symbols, or a fourth frequency of symbols other than the second preset number of symbols in the uplink channel of the Type 4 subframe. Band sets are used to transmit uplink control channels.

In this embodiment of the present invention, the type of the first subframe for data transmission is determined, and here, the types of the first subframe are the first type subframe, the second type subframe, and the third type subframe. It is a frame or a type 4 subframe. The type 1 subframe uplink control channel is located before the type 1 subframe downlink channel and is located between the type 1 subframe uplink control channel and the type 1 subframe downlink channel. Does not include guard periods, which reduces the number of switches and further reduces the number of guard periods. The type 2 subframe uplink control channel is located after the type 2 subframe downlink channel and is located between the type 2 subframe uplink control channel and the type 2 subframe downlink channel. There is a guard period, and the switch between uplink and downlink transmissions is performed only once, which reduces the number of switches and further reduces the number of guard periods. The type 3 subframe uplink channel is located in front of the type 3 subframe downlink control channel and is located between the type 3 subframe uplink channel and the type 3 subframe downlink control channel. Does not include guard periods, which reduces the number of switches and further reduces the number of guard periods. The type 4 subframe uplink channel is located after the type 4 subframe downlink control channel and is located between the type 4 subframe uplink channel and the type 4 subframe downlink control channel. There is a guard period, and the switch between uplink and downlink transmissions is performed only once, which reduces the number of switches and further reduces the number of guard periods. In this way, the utilization rate of wireless resources is improved.

Those skilled in the art will appreciate that all or some of the stages of the embodiment can be implemented by a program that directs the hardware or related hardware. The program may be stored on a computer-readable storage medium. The storage medium may include read-only memory, a magnetic disk, or an optical disk.

The above description is merely an example of an embodiment of the invention of the present application and is not intended to limit the invention of the present application. Any changes, equivalent substitutions, and improvements made without departing from the spirit and principles of the invention shall be within the scope of the invention of the present application.
(Item 1)
A data transmission device, the above device
A processor configured to determine the type of first subframe for data transmission, wherein the first subframe is a type 1 subframe, a type 2 subframe, or a type 3 subframe. , Or a type 4 subframe, with a processor,
The first-class subframe includes an uplink control channel and a downlink channel, and the uplink control channel of the first-class subframe is located in front of the downlink channel of the first-class subframe.
The type 2 subframe includes an uplink control channel and a downlink channel, and the uplink control channel of the type 2 subframe is located after the downlink channel of the type 2 subframe and is described above. There is a guard period between the uplink control channel of the type 2 subframe and the downlink channel of the type 2 subframe.
The type 3 subframe includes an uplink channel and a downlink control channel, and the uplink channel of the type 3 subframe is located in front of the downlink control channel of the type 3 subframe.
The type 4 subframe includes an uplink channel and a downlink control channel, and the uplink channel of the type 4 subframe is located after the downlink control channel of the type 4 subframe and is described above. With a processor, there is a guard period between the uplink channel of the Type 4 subframe and the downlink control channel of the Type 4 subframe.
With a transmitter configured to transmit data in the first subframe according to the determined type of the first subframe.
Equipped with
Data transmission device.
(Item 2)
The device is the transmitter further configured to transmit data in a second subframe after the first subframe, wherein the second subframe is adjacent to the first subframe, said transmission. Equipped with more machines,
If the data transmission direction at the start of the second subframe is different from the data transmission direction at the end of the first subframe, a guard period is further included between the first subframe and the second subframe. ,
When the data transmission direction at the start time of the second subframe is the same as the data transmission direction at the end time of the first subframe, between the first subframe and the second subframe. The device according to item 1, which does not include a time interval.
(Item 3)
The device is the transmitter further configured to transmit data in a second subframe after the first subframe, wherein the second subframe is adjacent to the first subframe. With more transmitters
When the data transmission direction at the start time of the second subframe is the uplink and the data transmission direction at the end time of the first subframe is the downlink, the first subframe and the second subframe The device of item 1, wherein a guard period is further included in between.
(Item 4)
The processor is further configured or further configured to determine whether the type of the first subframe is the type 1 subframe or the type 2 subframe according to a first preset period.
From item 1, the processor is further configured to determine whether the type of the first subframe is the type 3 subframe or the type 4 subframe according to a second preset period. The device according to any one of 3.
(Item 5)
When it is determined that the type of the first subframe is the type 1 subframe or the type 2 subframe according to the first preset period, the first subframe is a synchronization signal. , A broadcast signal, or one of the discovery reference signals or a combination thereof, the broadcast signal having the first preset period and / or the second preset period. The device of item 4, which is used to retain information about the cycle.
(Item 6)
When the first preset period and the second preset period are the same, the broadcast signal uses the first preset period or the second preset period. Shown, the broadcast signal further indicates an offset between the first preset period and the second preset period, where the offsets are the first preset period and the second preset period. The device of item 5, which is used to indicate the difference in subframe numbers between subframes corresponding to a second preset period.
(Item 7)
The first subframe holds instructional information, which is used to indicate the subframe type of the kth subframe after the first subframe, where k is a positive integer. The device according to any one of 1 to 6.
(Item 8)
A first preset number of consecutive symbols in the downlink channel of the Type 1 subframe, or a first preset number of consecutive symbols in the downlink channel of the Type 2 subframe. Is used to transmit the downlink control channel, and is a symbol other than the first preset number of symbols in the downlink channel of the first type subframe, or a second type subframe. Symbols in the downlink channel other than the first preset number of symbols are used to transmit the downlink data, and the first preset number of consecutive symbols is temporal. The first preset number of symbols placed earlier in order, or the first preset number of consecutive symbols above, is the first preset number placed later in chronological order. The device according to any one of items 1 to 7, which is a symbol of a number.
(Item 9)
The first frequency band set in the downlink channel of the first type subframe or the first frequency band set in the downlink channel of the second type subframe is used for transmitting downlink data, and the above. The second frequency band set in the downlink channel of the first type subframe or the second frequency band set in the downlink channel of the second type subframe is used for transmitting the downlink control channel. The device according to any one of 1 to 7.
(Item 10)
A first preset number of consecutive symbols in the downlink channel of the Type 1 subframe, or a first preset number of consecutive symbols in the downlink channel of the Type 2 subframe. Is used to transmit the downlink control channel, the third frequency band set of symbols other than the first preset number of symbols in the downlink channel of the first type subframe, or the third frequency band set. The third frequency band set of symbols other than the first preset number of symbols in the downlink channel of the second type subframe is used for transmitting the downlink data, and the first type sub The fourth frequency band set of the symbols other than the first preset number of symbols in the downlink channel of the frame or the downlink channel of the second type subframe, or the second type subframe. The fourth frequency band set of the symbols other than the first preset number of symbols in the downlink channel is any one of items 1 to 7 used to transmit the downlink control channel. The device described in.
(Item 11)
A second preset number of consecutive symbols in the uplink channel of the Type 3 subframe, or a second preset number of consecutive symbols in the uplink channel of the Type 4 subframe. Is used to transmit the uplink control channel, and is a symbol other than the second preset number of symbols in the uplink channel of the third type subframe, or a fourth type subframe. Symbols other than the second preset number of symbols in the uplink channel are used to transmit the uplink data, and the second preset number of consecutive symbols is temporal. A second preset number of symbols placed earlier in order, said second preset number of consecutive symbols being a second preset number placed later in chronological order. The device according to any one of items 1 to 10, which is a symbol of a number.
(Item 12)
The first frequency band set in the uplink channel of the third type subframe or the first frequency band set in the uplink channel of the fourth type subframe is used for transmitting uplink data, and the above. The second frequency band set in the uplink channel of the third type subframe or the second frequency band set in the uplink channel of the fourth type subframe is used for transmitting the uplink control channel. The device according to any one of 1 to 10.
(Item 13)
A second preset number of consecutive symbols in the uplink channel of the Type 3 subframe, or a second preset number of consecutive symbols in the uplink channel of the Type 4 subframe. Is used to transmit the uplink control channel, the third frequency band set of symbols other than the second preset number of symbols in the uplink channel of the third type subframe, or the third frequency band set. A third frequency band set of symbols other than the second preset number of symbols in the uplink channel of the fourth subframe is used to transmit the uplink data and the third sub. The second preset in the fourth frequency band set of symbols other than the second preset number of symbols in the uplink channel of the frame, or in the uplink channel of the fourth type subframe. The device according to any one of items 1 to 10, wherein the fourth frequency band set of symbols other than the number of symbols is used to transmit an uplink control channel.

Claims (30)

It is a communication method, and the communication method is
Depending on the user device, the stage of receiving the downlink channel in one or more symbols of the subframe, and
The user equipment comprises a step of transmitting an acknowledgment / negative response (ACK / NACK) feedback message in response to the downlink channel at one or more symbols of the subframe.
The subframe is one of a plurality of subframes included in the frame.
The one or more symbols in the subframe for sending the ACK / NACK feedback message follow the one or more symbols for the downlink channel.
Communication method. The communication method according to claim 1, wherein the symbol in the subframe is an orthogonal frequency division multiplexing (OFDM) symbol. The communication method further
The user equipment comprises a step of receiving instruction information transmitted by the base station, wherein the instruction information is a symbol of the subframe for transmitting the uplink control channel and a symbol for transmitting the downlink channel. The communication method according to claim 1 or 2, which indicates a subframe type that comes later. The communication method further
The step of receiving the downlink control channel in one or more symbols of another subframe adjacent to the subframe in the time domain by the user equipment.
The user equipment comprises a step of transmitting an uplink channel in one or more symbols of the other subframe.
From claim 1, the one or more symbols of the other subframe for transmitting the uplink channel follow the one or more symbols of the other subframe for receiving the downlink control channel. The communication method according to any one of 3. The communication method further receives instruction information transmitted by the base station by the user equipment, wherein the instruction information has the symbol of the other subframe for transmitting the uplink channel of the downlink control channel. The communication method of claim 4, wherein the subframe type that follows the one or more symbols of the other subframe for reception. The communication method according to any one of claims 1 to 5, wherein the subframe is used to transmit at least one of a synchronization signal, a broadcast signal, and a discovery reference signal. A receiver that receives a downlink channel at one or more symbols in a subframe, and
A user device comprising a transmitter for transmitting an acknowledgment / negative response (ACK / NACK) feedback message in response to the downlink channel at one or more symbols of the subframe.
The subframe is one of a plurality of subframes included in the frame.
The one or more symbols in the subframe sending the ACK / NACK feedback message follow the one or more symbols for the downlink channel.
User device. The user device according to claim 7, wherein the symbol in the subframe is an orthogonal frequency division multiplexing (OFDM) symbol. The receiver further receives instructional information sent by the base station, which is the symbol of the subframe for transmitting the uplink control channel following the symbol for transmitting the downlink channel. , Indicates the subframe type,
The user device according to claim 7. The receiver further receives the downlink control channel in one or more symbols of another subframe adjacent to the subframe in the time domain.
The transmitter further transmits an uplink channel at one or more symbols in the other subframe.
The one or more symbols in the other subframe for transmitting the uplink channel follow the one or more symbols in the other subframe for receiving the downlink control channel.
The user device according to any one of claims 7 to 9. The receiver further receives instructional information sent by the base station, the instructional information being the symbol of the other subframe for transmitting the uplink channel, the other subframe relating to reception of the downlink control channel. Indicates the subframe type that follows the one or more symbols in the frame.
The user device according to claim 10. The user device according to any one of claims 7 to 11, wherein the subframe is used to transmit at least one of a synchronization signal, a broadcast signal, and a discovery reference signal. A receiving unit that receives a downlink channel in one or more symbols of a subframe,
A user device comprising a transmission unit for transmitting an acknowledgment / negative response (ACK / NACK) feedback message in response to the downlink channel at one or more symbols of the subframe.
The subframe is one of a plurality of subframes included in the frame.
The one or more symbols in the subframe sending the ACK / NACK feedback message follow the one or more symbols for the downlink channel.
User device. 13. The user equipment of claim 13, wherein the symbol in the subframe is an orthogonal frequency division multiplexing (OFDM) symbol. The receiving unit further receives instructional information sent by the base station, the instructional information being such that the subframe symbol for transmitting the uplink control channel follows the symbol for transmitting the downlink channel. , Indicates the subframe type,
The user device according to claim 13 or 14. The receiving unit further receives a downlink control channel in one or more symbols of another subframe adjacent to the subframe in the time domain.
The transmitting unit further transmits an uplink channel at one or more symbols in the other subframe.
The one or more symbols in the other subframe for transmitting the uplink channel follow the one or more symbols in the other subframe for receiving the downlink control channel.
The user device according to any one of claims 13 to 15. The receiving unit further receives instruction information sent by the base station, wherein the instruction information is a symbol of the other subframe for transmitting the uplink channel, the other subframe relating to reception of the downlink control channel. Indicates the subframe type that follows the one or more symbols in the frame.
The user device according to claim 16. The user device according to any one of claims 13 to 17, wherein the subframe is used to transmit at least one of a synchronization signal, a broadcast signal, and a discovery reference signal. A computer-readable storage medium in which the program is recorded, wherein the program is
At the stage of receiving the downlink channel in one or more symbols of the subframe,
It comprises sending an acknowledgment / negative response (ACK / NACK) feedback message in response to the downlink channel at one or more symbols of the subframe.
The subframe is one of a plurality of subframes included in the frame.
The one or more symbols in the subframe for sending the ACK / NACK feedback message follow the one or more symbols for the downlink channel.
A computer-readable storage medium that causes the computer to perform the method. The computer-readable storage medium of claim 19, wherein the symbol in the subframe is an orthogonal frequency division multiplexing (OFDM) symbol. The method further
It comprises a step of receiving instruction information sent by a base station, wherein the instruction information is a subframe in which the symbol of the subframe for transmitting the uplink control channel comes after the symbol for transmitting the downlink channel. The computer-readable storage medium according to claim 19 or 20, indicating the type. The method further
The stage of receiving a downlink control channel in one or more symbols of another subframe adjacent to the subframe in the time domain.
A step of transmitting an uplink channel in one or more symbols of the other subframe is provided.
19. The symbol of the other subframe for transmitting an uplink channel follows the symbol of the other subframe for receiving the downlink control channel, claim 19. A computer-readable storage medium according to any one of 21. The method further receives instruction information sent by the base station by the user equipment, wherein the instruction information relates to reception of the downlink control channel with the symbol of the other subframe for transmitting the uplink channel. 22. The computer-readable storage medium of claim 22, indicating the subframe type that follows the one or more symbols of the other subframe. The computer-readable storage medium according to any one of claims 19 to 23, wherein the subframe is used to transmit at least one of a synchronization signal, a broadcast signal, or a discovery reference signal. At the stage of receiving the downlink channel in one or more symbols of the subframe,
It comprises sending an acknowledgment / negative response (ACK / NACK) feedback message in response to the downlink channel at one or more symbols of the subframe.
The subframe is one of a plurality of subframes included in the frame.
The one or more symbols in the subframe for sending the ACK / NACK feedback message follow the one or more symbols for the downlink channel.
A program that lets a computer perform a method. 25. The program of claim 25, wherein the symbol in the subframe is an orthogonal frequency division multiplexing (OFDM) symbol. The method further
It comprises a step of receiving instruction information sent by a base station, wherein the instruction information is a subframe in which the symbol of the subframe for transmitting the uplink control channel comes after the symbol for transmitting the downlink channel. 25. The program of claim 25 or 26, indicating the type. The method further
The stage of receiving a downlink control channel in one or more symbols of another subframe adjacent to the subframe in the time domain.
A step of transmitting an uplink channel in one or more symbols of the other subframe is provided.
25. The said one or more symbols of the other subframe for transmitting the uplink channel follow the said one or more symbols of the other subframe for receiving the downlink control channel. The program according to any one of 27. The method further receives instruction information sent by the base station by the user equipment, the instruction information relating to the reception of the downlink control channel with the symbol of the other subframe for transmitting the uplink channel. 28. The program of claim 28, indicating the subframe type that follows the one or more symbols of the other subframe. The program according to any one of claims 25 to 29, wherein the subframe is used to transmit at least one of a synchronization signal, a broadcast signal, or a discovery reference signal.

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