TW201935958A - Data transmission method, terminal, and base station by determining, according to the indication message, the uplink resource and/or the downlink resource in a target time unit corresponding to the downlink control channel - Google Patents

Abstract

The present invention provides a data transmission method, a terminal, and a base station. The method of the present invention includes: receiving a downlink control channel and an indication message for indicating the uplink and downlink resource division in a time unit; determining, according to the indication message, the uplink resource and/or the downlink resource in a target time unit corresponding to the downlink control channel, wherein the target time unit is the time unit in which the target transmission corresponding to the downlink control channel is located; and determining the time domain resource, in the uplink resource or the downlink resource, of the target transmission corresponding to the downlink control channel.

Description

Data transmission method, terminal and base station

The invention belongs to the field of communication technology, and particularly relates to a data transmission method, a terminal and a base station.

With the development and change of mobile communication service requirements, organizations such as the International Telecommunication Union (ITU) and 3GPP have begun to study new wireless communication systems (such as 5G systems). The new wireless communication system can support the coexistence of multiple service types, such as enhanced mobile broadband eMBB services, ultra-high-reliability and ultra-low-latency communication URLLC services, and large-scale Internet of Things mMTC. The traffic of the same service will also change. In order to support different service types and flexible traffic volume, transmission structures such as full downlink time slots, full uplink time slots, partial downlink and partial uplink time slots can be used, and some downlink and partial uplink time slots can be further divided into Downstream-based time slots and uplink-based time slots. There is currently no relevant solution on how to perform transmission in a variable time slot structure.

An object of the present invention is to provide a data transmission method, a terminal, and a base station, which are used to solve the problem that how to perform transmission in a variable time slot structure is not provided in the related art.

To solve the above technical problems, an embodiment of the present invention provides a data transmission The method includes: receiving a downlink control channel and an instruction message for indicating the division of uplink and downlink resources in a time unit; and determining the uplink resource and / or the downlink resource in a target time unit corresponding to the downlink control channel according to the instruction message, wherein , The target time unit is a time unit where a target transmission corresponding to the downlink control channel is located; determining a time domain resource of the target transmission corresponding to the downlink control channel in the uplink resource or the downlink resource, and in the time domain resource The target transmission is in progress.

The step of receiving an instruction message for indicating the division of uplink and downlink resources in a time unit includes: receiving the instruction message through high-level signaling, a broadcast signal, or a downlink control channel.

The step of receiving an instruction message for indicating the uplink and downlink resource division in a time unit includes receiving the instruction message in a target time unit corresponding to the downlink control channel or in a time unit before the target time unit.

The target transmission corresponding to the downlink control channel specifically includes: if the format of the DCI used by the downlink control channel is an uplink DCI format, the target transmission corresponding to the downlink control channel is the uplink scheduled by the downlink control channel. Shared channel transmission; or, if the format of the DCI used by the downlink control channel is a downlink DCI format, the target transmission corresponding to the downlink control channel is the downlink shared channel transmission scheduled by the downlink control channel; Alternatively, if the format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is the ACK / NACK feedback corresponding to the downlink shared channel scheduled by the downlink control channel or the downlink control. ACK / NACK feedback corresponding to the channel.

The target time unit is one of the following time units: the current time unit in which the downlink control channel is transmitted, the A1 time unit after the current time unit, the continuous A2 time units starting from the current time unit, or the A3 consecutive time units after the current time unit, where A1, A2, and A3 are all integers greater than or equal to 1, A1, A2, and A3 are determined according to pre-agreed rules or determined by the configuration of higher-level signaling Or determined according to the indication field in the downlink control channel.

The step of determining that the target corresponding to the downlink control channel is transmitted in the uplink resource or the time domain resource in the downlink resource includes: all symbols or all mini-slots or all in the uplink resource or the downlink resource. Time slot or all sub-frames or partial symbols or partial mini-slots or partial time slots or partial sub-frames as the time domain resources for the target transmission; or All symbols or all mini-slots or all time slots or all sub-frames or part of symbols or part of mini-slots or part of time slots or part of sub-frames in the resource for transmitting data are used as time-domain resources for the target transmission; The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

The step of determining a target transmission corresponding to the downlink control channel in the uplink resource or the time domain resource in the downlink resource includes: if there is an indication in the downlink control channel for indicating the time domain resource of the target transmission; area, Then, according to the indication domain and the indication message, a time domain resource of the target transmission in the uplink resource or the downlink resource is determined.

The step of determining the time domain resource transmitted by the target in the uplink resource or the downlink resource according to the indication domain and the indication message includes: if the time domain resource indicated by the indication domain does not exceed the time limit according to the indication message; If the determined size of the uplink resource or the downlink resource does not exceed the size of an area previously agreed or configured for data transmission in the uplink resource or the downlink resource determined according to the indication message, the indication field indicates As the time domain resource transmitted by the target; or, if the time domain resource indicated by the indication domain exceeds the size of the uplink resource or the downlink resource determined according to the instruction message, the uplink resource or the downlink resource As the time domain resource transmitted by the target, or the time domain resource indicated by the indication domain as the time domain resource transmitted by the destination, or the uplink resource or the downlink resource and the time domain resource indicated by the indication domain The maximum or minimum value is used as the time domain resource transmitted by the target; or, if the time domain resource indicated by the indication domain exceeds If the determined size of the area for data transmission that is previously agreed or configured in the uplink resource or the downlink resource is determined, the area that is previously agreed or configured for data transmission in the uplink resource or the downlink resource is used as the target transmission area. Time domain resources, or the time domain resources indicated by the indication domain as the time domain resources transmitted by the target, or the uplink resources or the downlink resources that are previously agreed or configured for data transmission and the indication domain The maximum or minimum value in the indicated time domain resource is used as the time domain resource transmitted by the target.

The instruction message is used to indicate resource information of a downlink resource in a target time unit corresponding to the downlink control channel; or it is used to indicate a resource information corresponding to the downlink control channel. Resource information of the uplink resource in the target time unit; or at least two of resource information of the downlink resource in the target time unit corresponding to the downlink control channel, resource information of the uplink resource, and resource information of the guard interval GP, The resource information includes resource size and / or position; or, it is used to indicate a structure type of a target time unit corresponding to the downlink control channel.

The structure type includes at least one of the following structure types: the first structure type of symbols or mini-slots or time slots or sub-frames in the target time unit that are all used for uplink transmission, the symbols in the target time unit, or The mini-slot or time slot or sub-frame is used for the second structure type of downlink transmission, the first part of the symbol or the mini-slot or time slot or sub-frame is used for uplink transmission, and the second part of the symbol The third structure type is a mini-slot or a time slot or a sub-frame used for downlink transmission.

The time unit and the target time unit are respectively predefined or configured units including D1 sub-frames, D2 time slots, D3 mini-slots, and D4 symbols, where D1, D2, D3, and D4 are greater than Or an integer equal to 1.

The above-mentioned data transmission method further includes: if the instruction message is not received or the instruction message fails to be received, determining that the target transmission is not performed in the target time unit, or determining that the target time unit is pre-defined in the target time unit. Or the configured time domain resource size and / or location for the target transmission, or, if there is an indication field for indicating the time domain resource for the target transmission in the downlink control channel, determining in the target time unit according to the indication field The indicated time domain resource performs the target transmission.

An embodiment of the present invention further provides a data transmission method, which is applied to a base station and includes: Sending a downlink control channel and an instruction message for indicating the division of uplink and downlink resources in the time unit; and determining the uplink resource and / or the downlink resource in the target time unit corresponding to the downlink control channel according to the instruction message, where the target time The unit is the time unit where the target transmission corresponding to the downlink control channel is located; determining the time domain resource corresponding to the target transmission corresponding to the downlink control channel in the uplink resource or the downlink resource, and performing the target in the time domain resource transmission.

The step of sending an instruction message for indicating the division of uplink and downlink resources in the time unit includes: sending the instruction message through high-level signaling, a broadcast signal, or the downlink control channel.

The step of sending an instruction message for indicating the uplink and downlink resource division in the time unit includes: sending the instruction message in a target time unit corresponding to the downlink control channel or in a time unit before the target time unit.

The target transmission corresponding to the downlink control channel specifically includes: if the format of the DCI used by the downlink control channel is an uplink DCI format, the target transmission corresponding to the downlink control channel is the uplink scheduled by the downlink control channel. Shared channel transmission; or, if the format of the DCI used by the downlink control channel is a downlink DCI format, the target transmission corresponding to the downlink control channel is the downlink shared channel transmission scheduled by the downlink control channel; or, if the downlink The format of the DCI used by the control channel is the downlink DCI format. The target transmission corresponding to the control channel is the ACK / NACK feedback corresponding to the downlink shared channel scheduled by the downlink control channel or the ACK / NACK feedback corresponding to the downlink control channel.

The target time unit is one of the following time units: the current time unit in which the downlink control channel is transmitted, the A1 time unit after the current time unit, the continuous A2 time units starting from the current time unit, or the A3 consecutive time units after the current time unit, where A1, A2, and A3 are all integers greater than or equal to 1, A1, A2, and A3 are determined according to pre-agreed rules or determined by the configuration of higher-level signaling Or determined according to the indication field in the downlink control channel.

The step of determining that the target corresponding to the downlink control channel is transmitted in the uplink resource or the time domain resource in the downlink resource includes: all symbols or all mini-slots or all in the uplink resource or the downlink resource. Time slot or all sub-frames or partial symbols or partial mini-slots or partial time slots or partial sub-frames as the time domain resources for the target transmission; or All symbols or all mini-slots or all time slots or all sub-frames or part of symbols or part of mini-slots or part of time slots or part of sub-frames in the resource for transmitting data are used as time-domain resources for the target transmission; The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

The step of determining a target transmission corresponding to the downlink control channel in the uplink resource or the time domain resource in the downlink resource includes: if there is an indication in the downlink control channel for indicating the time domain resource of the target transmission; Domain, according to the indication domain and the indication message, determine the time domain resource of the target transmission in the uplink resource or the downlink resource.

The step of determining the time domain resource transmitted by the target in the uplink resource or the downlink resource according to the indication domain and the indication message includes: if the time domain resource indicated by the indication domain does not exceed the time limit according to the indication message; If the determined size of the uplink resource or the downlink resource does not exceed the size of an area previously agreed or configured for data transmission in the uplink resource or the downlink resource determined according to the indication message, the indication field indicates As the time domain resource transmitted by the target; or, if the time domain resource indicated by the indication domain exceeds the size of the uplink resource or the downlink resource determined according to the instruction message, the uplink resource or the downlink resource As the time domain resource transmitted by the target, or the time domain resource indicated by the indication domain as the time domain resource transmitted by the destination, or the uplink resource or the downlink resource and the time domain resource indicated by the indication domain The maximum or minimum value is used as the time domain resource transmitted by the target; or, if the time domain resource indicated by the indication domain exceeds If the determined size of the area for data transmission that is previously agreed or configured in the uplink resource or the downlink resource is determined, the area that is previously agreed or configured for data transmission in the uplink resource or the downlink resource is used as the target transmission area. Time domain resources, or the time domain resources indicated by the indication domain as the time domain resources transmitted by the target, or the uplink resources or the downlink resources that are previously agreed or configured for data transmission and the indication domain The maximum or minimum value in the indicated time domain resource is used as the time domain resource transmitted by the target.

The instruction message is used to indicate resource information of a downlink resource in a target time unit corresponding to the downlink control channel; or it is used to indicate resource information of an uplink resource in a target time unit corresponding to the downlink control channel; or, Resource information of downlink resources, resource information of uplink resources, protection in a target time unit corresponding to the downlink control channel At least two of the resource information of the interval GP, where the resource information includes the resource size and / or location; or, it is used to indicate the structure type of the target time unit corresponding to the downlink control channel.

The structure type includes at least one of the following structure types: the first structure type of symbols or mini-slots or time slots or sub-frames in the target time unit that are all used for uplink transmission, the symbols in the target time unit, or The mini-slot or time slot or sub-frame is used for the second structure type of downlink transmission, the first part of the symbol or the mini-slot or time slot or sub-frame is used for uplink transmission, and the second part of the symbol The third structure type is a mini-slot or a time slot or a sub-frame used for downlink transmission.

The time unit and the target time unit are respectively predefined or configured units including D1 sub-frames, D2 time slots, D3 mini-slots, and D4 symbols, where D1, D2, D3, and D4 are greater than Or an integer equal to 1.

The above-mentioned data transmission method further includes: if the instruction message is not received or the instruction message fails to be received, determining that the target transmission is not performed in the target time unit, or determining that the target time unit is pre-defined in the target time unit. Or the configured time domain resource size and / or location for the target transmission, or, if there is an indication field for indicating the time domain resource for the target transmission in the downlink control channel, determining in the target time unit according to the indication field The indicated time domain resource performs the target transmission.

An embodiment of the present invention further provides a terminal, including: a receiving module for receiving a downlink control channel and an instruction message for indicating an allocation of uplink and downlink resources in a time unit; a first determining module for using the instruction message To determine the corresponding of the downlink control channel An uplink resource and / or a downlink resource in a target time unit, where the target time unit is a time unit where a target transmission corresponding to the downlink control channel is located; a second determining module is configured to determine The target transmits a time domain resource in the uplink resource or the downlink resource, and the target transmission is performed in the time domain resource.

The receiving module is specifically configured to receive the instruction message through a high-level signaling, a broadcast signal, or a downlink control channel.

The receiving module is specifically configured to receive the instruction message in a target time unit corresponding to the downlink control channel or in a time unit before the target time unit.

The target transmission corresponding to the downlink control channel specifically includes: if the format of the DCI used by the downlink control channel is an uplink DCI format, the target transmission corresponding to the downlink control channel is the uplink scheduled by the downlink control channel. Shared channel transmission; or, if the format of the DCI used by the downlink control channel is a downlink DCI format, the target transmission corresponding to the downlink control channel is the downlink shared channel transmission scheduled by the downlink control channel; or, if the downlink The format of the DCI used by the control channel is the downlink DCI format. The target transmission corresponding to the downlink control channel is the ACK / NACK feedback corresponding to the downlink shared channel scheduled by the downlink control channel or the ACK corresponding to the downlink control channel. / NACK feedback.

The target time unit is one of the following time units: the current time unit in which the downlink control channel is transmitted, the A1 time unit after the current time unit, the continuous A2 time units starting from the current time unit, or the A3 consecutive time units after the current time unit, where A1, A2, and A3 are all integers greater than or equal to 1, and A1 A2 and A3 are determined according to a pre-agreed rule or a configuration of a high-level signaling or a indication field in the downlink control channel.

The second determining module includes: a first determining submodule, configured to use all symbols or all mini-slots or all time slots or all sub-frames or partial symbols or portions of the uplink resource or the downlink resource The mini-slot or part of the time slot or part of the sub-frame is used as the time domain resource for the target transmission; or, the second determining submodule is used to pre-appoint or configure the uplink resource or the downlink resource for data transmission. All the symbols or all mini-slots or all time slots or all sub-frames or some symbols or some mini-slots or some time slots or some sub-frames in the resource are used as the time domain resources for the target transmission; where the mini- A slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

The second determining module includes a third determining sub-module, and if there is an indication field in the downlink control channel for indicating the time domain resource of the target transmission, according to the indication field and the indication message, Determine the time domain resource of the target transmission in the uplink resource or the downlink resource.

The third determining submodule includes: a first determining unit configured to: if the time domain resource indicated by the indication domain does not exceed the size of the uplink resource or the downlink resource determined according to the instruction message, or not exceed If the size of the uplink resource or the downlink resource that is pre-agreed or configured in the downlink resource determined by the indication message is used, the time domain resource indicated by the indication domain is used as the time domain resource for the target transmission; the second determination A unit configured to, if the time domain resource indicated by the indication field exceeds the size of the uplink resource or the downlink resource determined according to the indication message, use the uplink resource or the downlink resource as The time domain resource transmitted for the target, or the time domain resource indicated by the indication domain as the time domain resource transmitted by the target, or the uplink resource or the downlink resource and the time domain resource indicated by the indication domain. The maximum value or the minimum value is used as the time domain resource for the target transmission; a third determining unit is configured to: if the time domain resource indicated by the indication domain exceeds the uplink resource or the downlink resource determined or configured in advance according to the instruction message The size of the area for transmitting data, then use the uplink resource or the area previously agreed or configured for data transmission as the time domain resource for the target transmission, or the time domain indicated by the indication domain The resource is used as the time domain resource for the target transmission, or the maximum or minimum value in the uplink resource or the downlink resource that is previously agreed or configured for data transmission and the time domain resource indicated by the indication domain is used as the Time domain resource of the target transmission.

The instruction message is used to indicate resource information of a downlink resource in a target time unit corresponding to the downlink control channel; or it is used to indicate resource information of an uplink resource in a target time unit corresponding to the downlink control channel; or, At least two of the resource information of the downlink resources, the resource information of the uplink resources, and the resource information of the guard interval GP in the target time unit corresponding to the downlink control channel, wherein the resource information includes resource size and / or location; or , Used to indicate the structure type of the target time unit corresponding to the downlink control channel.

The structure type includes at least one of the following structure types: the first structure type of symbols or mini-slots or time slots or sub-frames in the target time unit that are all used for uplink transmission, the symbols in the target time unit, or mini-slot or time slot or sub-frame are all used for downlink transmission of the second structure type, the first part of the symbol in the target time unit, or The third structure type is mini-slot or time slot or sub-frame for uplink transmission, and the second part symbol or mini-slot or time slot or sub-frame is used for downlink transmission.

The time unit and the target time unit are respectively predefined or configured units including D1 sub-frames, D2 time slots, D3 mini-slots, and D4 symbols, where D1, D2, D3, and D4 are greater than Or an integer equal to 1.

The terminal further includes: a third determining module, configured to determine that the target transmission is not performed in the target time unit if the instruction information is not received or the reception of the instruction message fails, or determine that the target time The unit transmits the target transmission according to a predefined or configured time domain resource size and / or position in the unit, or, if an indication field for indicating the time domain resource of the target transmission exists in the downlink control channel, determining the target time unit The target transmission is performed according to the time domain resources indicated by the indication domain.

An embodiment of the present invention further provides a base station, including: a sending module for sending a downlink control channel and an instruction message for indicating an uplink and downlink resource division in a time unit; a fourth determining module for using the instruction Message to determine the uplink resource and / or the downlink resource in the target time unit corresponding to the downlink control channel, where the target time unit is the time unit where the target transmission corresponding to the downlink control channel is located; a fifth determining module, It is used to determine a time domain resource in the uplink resource or the downlink resource for the target transmission corresponding to the downlink control channel, and perform the target transmission in the time domain resource.

The sending module is specifically configured to send the instruction message through high-level signaling, a broadcast signal, or the downlink control channel.

The sending module is specifically configured to send the instruction message in a target time unit corresponding to the downlink control channel or in a time unit before the target time unit.

The target transmission corresponding to the downlink control channel specifically includes: if the format of the DCI used by the downlink control channel is an uplink DCI format, the target transmission corresponding to the downlink control channel is the uplink scheduled by the downlink control channel. Shared channel transmission; or, if the format of the DCI used by the downlink control channel is a downlink DCI format, the target transmission corresponding to the downlink control channel is the downlink shared channel transmission scheduled by the downlink control channel; or, if the downlink The format of the DCI used by the control channel is the downlink DCI format. The target transmission corresponding to the downlink control channel is the ACK / NACK feedback corresponding to the downlink shared channel scheduled by the downlink control channel or the ACK corresponding to the downlink control channel. / NACK feedback.

The target time unit is one of the following time units: the current time unit in which the downlink control channel is transmitted, the A1 time unit after the current time unit, the continuous A2 time units starting from the current time unit, or the A3 consecutive time units after the current time unit, where A1, A2, and A3 are all integers greater than or equal to 1, A1, A2, and A3 are determined according to pre-agreed rules or determined by the configuration of higher-level signaling Or determined according to the indication field in the downlink control channel.

The fifth determination module includes: a fourth determination sub-module, configured to use all symbols or all mini-slots or all time slots or all sub-frames or partial symbols or portions of the uplink resource or the downlink resource mini-slot or partial time slot or partial subframe as the time domain resource for the target transmission; or, The fifth determining submodule is used for all symbols or all mini-slots or all time slots or all sub-frames or partial symbols or Part of the mini-slot or part of the time slot or part of the sub-frame is used as the time domain resource for the target transmission. The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

The fifth determination module includes: a sixth determination sub-module, configured to: if there is an indication field for indicating the time domain resource of the target transmission in the downlink control channel, according to the indication field and the indication message, Determine the time domain resource of the target transmission in the uplink resource or the downlink resource.

The sixth determination submodule includes: a fourth determination unit, configured to: if the time domain resource indicated by the indication domain does not exceed the size of the uplink resource or the downlink resource determined according to the instruction message, or The size of the area for transmitting data that is previously agreed or configured in the uplink resource or the downlink resource determined by the indication message, then the time domain resource indicated by the indication domain is used as the time domain resource for the target transmission; the fifth determination A unit configured to, if the time domain resource indicated by the indication domain exceeds the size of the uplink resource or the downlink resource determined according to the instruction message, use the uplink resource or the downlink resource as a time domain resource for the target transmission, or The time domain resource indicated by the indication domain is used as the time domain resource for the target transmission, or the maximum or minimum value of the uplink resource or the downlink resource and the time domain resource indicated by the indication domain is used as the time for the target transmission. A domain resource; a sixth determining unit, configured to: if the time domain resource indicated by the indication domain exceeds the uplink resource or the downlink resource determined according to the instruction message Pre-arranged agreement or size of the area used to transmit data, then the uplink resource or a downlink resource in the prearranged or configured resource for transmission The time domain resource indicated by the indication domain is used as the time domain resource transmitted by the target, or the uplink resource or the downlink resource is pre-approved or configured for transmission The maximum or minimum of the time domain resources indicated by the data area and the indication domain is used as the time domain resources transmitted by the target.

The instruction message is used to indicate resource information of a downlink resource in a target time unit corresponding to the downlink control channel; or it is used to indicate resource information of an uplink resource in a target time unit corresponding to the downlink control channel; or, At least two of the resource information of the downlink resources, the resource information of the uplink resources, and the resource information of the guard interval GP in the target time unit corresponding to the downlink control channel, wherein the resource information includes resource size and / or location; or , Used to indicate the structure type of the target time unit corresponding to the downlink control channel.

The structure type includes at least one of the following structure types: the first structure type of symbols or mini-slots or time slots or sub-frames in the target time unit that are all used for uplink transmission, the symbols in the target time unit, or The mini-slot or time slot or sub-frame is used for the second structure type of downlink transmission, the first part of the symbol or the mini-slot or time slot or sub-frame is used for uplink transmission, and the second part of the symbol The third structure type is a mini-slot or a time slot or a sub-frame used for downlink transmission.

The time unit and the target time unit are respectively predefined or configured units including D1 sub-frames, D2 time slots, D3 mini-slots, and D4 symbols, where D1, D2, D3, and D4 are greater than Or an integer equal to 1.

The base station further includes: a sixth determining module, configured to: if the terminal does not receive the instruction message or the instruction message is received If it fails, it is determined that the target transmission is not performed in the target time unit, or that the target transmission is performed according to a predefined or configured time domain resource size and / or location in the target time unit, or, if the downlink control An indication field for indicating the time domain resource of the target transmission exists in the channel, and it is determined that the target transmission is performed in the target time unit according to the time domain resource indicated by the indication field.

The embodiment of the present invention has the following beneficial effects: the above technical solution of the embodiment of the present invention receives a downlink control channel and an instruction message for indicating the division of uplink and downlink resources in a time unit; and determines the corresponding one of the downlink control channel according to the instruction message. An uplink resource and / or a downlink resource in a target time unit, where the target time unit is a time unit where a target transmission corresponding to the downlink control channel is located; determining that the target transmission corresponding to the downlink control channel is in the uplink resource or the Time-domain resources in downlink resources, and the target transmission is performed in the time-domain resources, achieving the purpose of transmission in a variable time slot structure, and further solving how the related technology does not give a description of how to use the variable time slot structure. Problems with transmission.

101-103, 201-203‧‧‧ steps

601‧‧‧Receiving module

602‧‧‧First Confirmation Module

603‧‧‧Second Confirmation Module

6031‧‧‧First Confirmation Submodule

6032‧‧‧Second determination submodule

6033‧‧‧The third determination submodule

60331‧‧‧First determination unit

60332‧‧‧Second determination unit

60333‧‧‧The third determination unit

604‧‧‧Third Confirmation Module

801‧‧‧Transfer Module

802‧‧‧Fourth Confirmation Module

803‧‧‧Fifth Confirmation Module

8031‧‧‧Fourth determined submodule

8032‧‧‧Fifth determined submodule

8033‧‧‧Sixth determination submodule

80331‧‧‧Fourth determination unit

80332‧‧‧Fifth determination unit

80333‧‧‧Sixth determination unit

804‧‧‧Sixth Confirmation Module

700, 900‧‧‧ processors

710, 910‧‧‧ Transceiver

720, 920‧‧‧Memory

730‧‧‧user interface

FIG. 1 is a first working flowchart of a data transmission method according to some embodiments of the present invention; FIG. 2 is a second working flowchart of a data transmission method according to some embodiments of the present invention; and FIG. 3 is data of some embodiments of the present invention The first transmission schematic diagram of the transmission method; FIG. 4 is a second transmission schematic diagram of the data transmission method of some embodiments of the present invention; FIG. 5 is the third transmission schematic diagram of the data transmission method of some embodiments of the present invention; A first structural block diagram of a terminal in some embodiments; 7 is a second structural block diagram of a terminal according to some embodiments of the present invention; FIG. 8 is a first structural block diagram of a base station according to some embodiments of the present invention; and FIG. 9 is a block diagram of a base station according to some embodiments of the present invention Block diagram of the second structure.

In order to make the technical problems, technical solutions, and advantages of the present invention clearer, the following describes in detail with reference to specific embodiments and accompanying drawings.

The data transmission method of the embodiment of the present invention determines a time domain resource of a target transmission corresponding to the downlink control channel according to an instruction message and a downlink control channel for indicating the division of uplink and downlink resources in a time unit, thereby realizing The purpose of this target transmission on time domain resources.

As shown in FIG. 1, the data transmission method of some embodiments of the present invention, which is applied to a terminal, includes:

Step 101: Receive a downlink control channel and an instruction message for indicating the division of uplink and downlink resources in a time unit.

In this step, the downlink control channel is a downlink control channel using an uplink DCI format (that is, a downlink control channel carrying an uplink scheduling permission, that is, an uplink scheduling instruction UL grant) and / or a downlink control channel using a downlink DCI format (that is, carrying a downlink scheduling). The granted downlink control channel, that is, the downlink scheduling instruction DL grant, includes a downlink control channel indicating the short downlink semi-persistent scheduling SPS resource release).

Optionally, the step of receiving the instruction message for indicating the uplink and downlink resource division in the time unit in step 101 includes: using high-level signaling, a broadcast signal, or downlink control communication. The channel receives the instruction message. The instruction message is shared by the terminal or exclusive to the terminal.

Optionally, the step of receiving the instruction message for indicating the uplink and downlink resource division in the time unit in step 101 further includes: receiving in a target time unit corresponding to the downlink control channel or in a time unit before the target time unit. The instruction message.

Here, if the instruction message is received in a time unit before the target time unit, when it is determined that the target time unit is full uplink according to the instruction message, in the target time unit, the terminal may not detect the instruction time unit. Indicating information for mid-uplink and down-link resource division, thereby achieving the purpose of power saving.

In this step, the target control transmission corresponding to the downlink control channel and the uplink and downlink resource partitioning in the target time unit corresponding to the target transmission are obtained by receiving the downlink control channel and an instruction message for indicating the uplink and downlink resource division in the time unit.

Step 102: Determine an uplink resource and / or a downlink resource in a target time unit corresponding to the downlink control channel according to the instruction message, where the target time unit is a time unit in which a target transmission corresponding to the downlink control channel is located.

Specifically, if the downlink control channel is a downlink control channel using an uplink DCI format, at this time, only the uplink resource in the target time unit or both the uplink and downlink resources in the target time unit may be determined according to the instruction message; if the above The downlink control channel is a downlink control channel using a downlink DCI format, and the target transmission is a downlink shared channel scheduled by the downlink control channel. At this time, only the downlink resources in the target time unit can be determined according to the instruction message, or the target time can be determined at the same time. The uplink and downlink resources in the unit; if the downlink control channel is a downlink control channel using the downlink DCI format, and the target transmission is The ACK / NACK feedback corresponding to the downlink shared channel scheduled by the downlink control channel or the ACK / NACK feedback corresponding to the downlink control channel. At this time, only the uplink resource in the target time unit can be determined according to the indication message, or at the same time. Uplink and downlink resources in the target time unit.

Further, in this step, the target transmission corresponding to the downlink control channel specifically includes: if the format of the DCI used by the downlink control channel is an uplink DCI format, the target transmission corresponding to the downlink control channel is the downlink control The uplink shared channel transmission scheduled by the channel; or, if the format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is the downlink shared channel transmission scheduled by the downlink control channel; Alternatively, if the format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is the ACK / NACK feedback corresponding to the downlink shared channel scheduled by the downlink control channel or the downlink control. ACK / NACK feedback corresponding to the channel.

The target time unit is one of the following time units: the current time unit in which the downlink control channel is transmitted, the A1 time unit after the current time unit, the consecutive A2 time units starting from the current time unit, or the current time A3 consecutive time units after the unit, where A1, A2, and A3 are all integers greater than or equal to 1, A1, A2, and A3 are determined according to pre-agreed rules or determined by the configuration of high-level signaling or based on The indication field in the downlink control channel is determined.

Further, when the downlink control channel is a downlink control channel using an uplink DCI format: the downlink control channel using an uplink DCI format is used to schedule the current time unit or the A1 time unit or the current time unit after the current time unit Upstream sharing in the beginning of consecutive A2 time units or consecutive A3 time units after the current time unit Channel transmission, A1, A2, A3 are integer values greater than or equal to 1, A1, A2, A3 are pre-approved or configured, or A1, A2, A3 are determined according to the indicated domain in the downlink control channel using the uplink DCI format The current time unit is the time unit where the downlink control channel transmission using the uplink DCI format is located.

Further, when the downlink control channel is a downlink control channel using a downlink DCI format: the downlink shared channel scheduled by the downlink control channel using a downlink DCI format or the downlink control channel using a downlink DCI format itself needs to be in a current time unit Or the ACK / NACK feedback is performed in the B1 time unit after the current time unit or the continuous B2 time units starting from the current time unit or the continuous B3 time units after the current time unit. B1, B2, and B3 are greater than or equal to 1 B1, B2, B3 are pre-approved or configured, or B1, B2, and B3 are determined based on the indication field in the downlink control channel using the downlink DCI format, and the current time unit is the downlink DCI format used The time unit where the downlink control channel transmission is located; or, the downlink control channel using the downlink DCI format is used to schedule the current time unit or the C1 time unit after the current time unit or the continuous C2 time unit starting from the current time unit Or the downlink shared channel transmission is performed in three consecutive C time units after the current time unit, C 1. C2, C3 are integer values greater than or equal to 1, C1, C2, C3 are pre-approved or configured, or C1, C2, and C3 are determined according to the indication domain in the downlink control channel using the downlink DCI format. The current time unit is the time unit in which the downlink control channel using the downlink DCI format is located; further, when the downlink control channel is a downlink control channel using the uplink DCI format, The time unit corresponding to the downlink control channel is: the time unit where the uplink shared channel transmission scheduled by the downlink control channel is located (that is, the current time unit or the A1 time unit after the current time unit or the continuous A2 starting from the current time unit) Time units or consecutive A3 time units after the current time unit, the current time unit is the time unit in which the downlink control channel is transmitted).

Further, when the downlink control channel is a downlink control channel using a downlink DCI format, the time unit corresponding to the downlink control channel is: the ACK / NACK or the downlink control corresponding to the downlink shared channel scheduled by the downlink control channel. The time unit of the ACK / NACK transmission corresponding to the channel itself (the current time unit or the B1 time unit after the current time unit or the continuous B2 time units starting from the current time unit or the continuous B3 time units after the current time unit , The current time unit is the time unit in which the downlink control channel is transmitted), or the time unit in which the downlink shared channel is scheduled to be transmitted by the downlink control channel (the current time unit or the C1 time unit or the current time after the current time unit) C2 time units at the beginning of the unit or C3 time units after the current time unit, the current time unit is the time unit in which the downlink control channel is transmitted).

The above time unit and the target time unit are respectively predefined or configured units including D1 sub-frames, D2 time slots, D3 mini-slots, and D4 symbols, where D1, D2, D3, and D4 are greater than or equal to An integer of 1.

Step 103: Determine a time domain resource in the uplink resource or the downlink resource for the target transmission corresponding to the downlink control channel, and perform the target transmission in the time domain resource.

Specifically, all the symbols or all mini-slots or all time slots or all sub-frames or some symbols or some mini-slots or some time slots in the uplink resource or the downlink resource or Part of the sub-frame is used as the time domain resource for the target transmission; or, all symbols or all mini-slots or all time slots or all sub-slots in the resource for data transmission that are pre-approved or configured in the uplink or downlink resource are used. The frame or part of the symbol or part of the mini-slot or part of the time slot or part of the sub-frame is used as the time domain resource for the target transmission; where the mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1. .

The symbols here may be specifically Orthogonal Frequency Division Multiplexing (OFDM) or Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbols. Of course, it can also be other orthogonal multiple access symbols, such as Pattern Division Multiple Access (PDMA) symbols, Sparse Code Multiplexing Access (SCMA) symbols, filtered orthogonal frequency division multiplexing Filtered Orthogonal Frequency Division Multiplexing (F-OFDM) symbols, Non-Orthogonal Multiple Access (NOMA) symbols, Cyclic Prefix-OFDM (CP-OFDM) symbols, etc.

Further, when the downlink control channel is a downlink control channel using an uplink DCI format, the transmission corresponding to the downlink control channel is: the uplink shared channel scheduled by the downlink control channel; and the time domain resource of the uplink shared channel is determined to be All or part of the symbols in the uplink area in the time unit in which the uplink shared channel is transmitted determined according to the indication message; further, if there is an indication domain in the downlink control channel that can indicate the time domain resource of the uplink shared channel, then The time domain resource indicated by the indication field in the downlink control channel may be less than, equal to, or greater than the size of the uplink area determined according to the indication message; when greater than the size of the uplink area determined according to the indication message, it may always be According to the size of the uplink area, Or always transmit according to the time domain resources indicated by the indication domain in the downlink control channel, or take the size of the uplink area and the maximum or minimum value of the time domain resources indicated by the indication domain in the downlink control channel; When the downlink control channel is a downlink control channel using a downlink DCI format, the transmission corresponding to the downlink control channel is: the ACK / NACK corresponding to the downlink shared channel scheduled by the downlink control channel or the ACK / NACK corresponding to the downlink control channel itself. ACK / NACK; determine that the time domain resource of the ACK / NACK transmission is all or part of the symbols in the uplink region in the time unit where the ACK / NACK transmission is determined according to the indication message; further, if the downlink control channel The existence of the indication domain can indicate the time domain resource of the ACK / NACK transmission, then the time domain resource indicated by the indication domain in the downlink control channel can be less than, equal to, or greater than the size of the uplink area determined according to the indication message; when greater than When the size of the uplink area is determined according to the instruction message, it may always be transmitted according to the size of the uplink area, or Always transmit according to the time domain resources indicated by the indication domain in the downlink control channel, or take the size of the uplink area and the maximum or minimum value of the time domain resources indicated by the indication domain in the downlink control channel; or, When the downlink control channel is a downlink control channel using a downlink DCI format, the corresponding transmission of the downlink control channel is: a downlink shared channel scheduled by the downlink control channel; it is determined that the time domain resource of the downlink shared channel is the downlink share All or part of the allocated downlink area in the time unit in which the channel is transmitted is a symbol used for data transmission (that is, if the control area is defined, the control area symbol is removed); further, if there is an indication field in the downlink control channel The time domain resources transmitted by the downlink shared channel can be indicated, then the time domain resources indicated by the indication domain in the downlink control channel can be Less than, equal to, or greater than determining the size of the downlink area according to the instruction message; when greater than the size of the downlink area determined according to the instruction message, it can always transmit according to the size of the downlink area, or always follow the downlink control The time domain resource transmission indicated by the indication field in the channel, or the size of the downlink area and the maximum or minimum value of the time domain resource indicated by the indication field in the downlink control channel.

Further, if there is an indication field for indicating the time domain resource of the target transmission in the downlink control channel, the above step 103 includes: determining, according to the indication field and the indication message, whether the target transmission is on the uplink resource or the Time domain resources in downlink resources.

Specifically, if the time domain resource indicated by the indication field does not exceed the size of the uplink resource or the downlink resource determined according to the instruction message, or does not exceed the uplink resource or the downlink resource determined in advance according to the instruction message Or the size of the configured area for transmitting data, the time domain resource indicated by the indication domain is used as the time domain resource transmitted by the target; or, if the time domain resource indicated by the indication domain exceeds the determination based on the instruction message The size of the uplink resource or the downlink resource, using the uplink resource or the downlink resource as the time domain resource for the target transmission, or using the time domain resource indicated by the indication domain as the time domain resource for the target transmission, or The maximum or minimum value of the uplink resource or the downlink resource and the time domain resource indicated by the indication domain is used as the time domain resource transmitted by the target; or, if the time domain resource indicated by the indication domain exceeds the instruction message according to the instruction If the determined size of the uplink resource or the area in the downlink resource that is previously agreed or configured for data transmission is determined, the uplink resource or The area for data transmission that is pre-appointed or configured in the downlink resource is used as the time domain resource for the target transmission, or the time domain resource indicated by the indication domain is used as the time domain resource for the target transmission, or the uplink resource or the Pre-agreed or configured in downlink resources for transmitting data The maximum or minimum value of the time domain resource indicated by the data area and the indication domain is used as the time domain resource transmitted by the target.

The frequency domain resources of the target transmission are indicated by the downlink control channel or are predefined.

Further, if there is an indication field in the downlink control channel for indicating the time domain resource of the target transmission, when the time domain resource indicated by the indication field starts at the first symbol of a time unit, it is determined that the time unit is Full uplink, or when the time domain resource indicated by the indication domain spans two time units, it is determined that the second time unit is full uplink. In the time unit that is determined to be full uplink, the terminal may not detect the indication message for indicating the uplink and downlink resource division in the time unit, thereby achieving the purpose of power saving.

The data transmission method according to some embodiments of the present invention determines a corresponding transmission time domain resource based on scheduling signaling and an indication message indicating uplink and downlink resource division, so as to perform correct transmission.

Further, the indication message in some embodiments of the present invention is specifically used to indicate resource information of downlink resources in a target time unit corresponding to the downlink control channel; or used to indicate a target time unit corresponding to the downlink control channel. Resource information of uplink resources; or at least two of resource information of downlink resources, resource information of uplink resources, and resource information of guard interval GP in a target time unit corresponding to the downlink control channel, among which resource information It includes resource size and / or location; or, it is used to indicate the structure type of the target time unit corresponding to the downlink control channel.

Among them, the resource size refers to the number of symbols or mini-slots or time slots or sub-frames included, and the position refers to the index of the contained symbols or mini-slots or time-slots or sub-frames. Or number.

The structure type includes at least one of the following structure types: the first structure type of symbols or mini-slots or time slots or subframes in the target time unit that are all used for uplink transmission, the symbols or mini-slots in the target time unit slot or time slot or sub-frame are all used for downlink transmission of the second structure type, the first part of the symbol or mini-slot in the target time unit or slot or sub-frame is used for uplink transmission, and the second part of the symbol or mini -slot or time slot or sub-frame is the third structure type used for downlink transmission.

Further, the third structure type may be classified into an uplink-dominated (ie, most symbols in the time unit are uplink) or an uplink-dominated (ie, most symbols in the time unit are downlink) structure type.

For example, the indication message indicates that the time unit is one of a full uplink or a full downlink or a structure type including both uplink and downlink; among which, multiple structure types including both uplink and downlink can be defined or configured in advance, and each structure type Corresponding to different uplink and downlink allocation ratios (that is, different numbers of uplink and downlink symbols are included), or the uplink and downlink allocation ratios can be dynamically adjusted for structures that include both uplink and downlink (e.g., dynamically determined based on neighboring cell interference, TA requirements, etc. GP size, thereby dynamically adjusting the size of the uplink area and / or the downlink area).

As another example, the indication message indicates that the time unit is one of a plurality of pre-defined or configured structural types including both uplink and downlink; wherein the plurality of pre-defined or configured structural types include both uplink and downlink structural types. Each structure type corresponds to a different uplink and downlink allocation ratio (that is, it contains different numbers of uplink and downlink symbols).

For another example, the indication message indicates that the time unit is one of a full uplink or a full downlink or an uplink-based or a downlink-based structure type; among which, a plurality of may be defined or configured in advance The uplink-based and / or downlink-based structure type, each structure type corresponds to a different uplink and downlink allocation ratio (that is, contains different numbers of uplink and downlink symbols).

Further, the time unit and the target time unit are respectively predefined or configured units including D1 sub-frames, D2 time slots, D3 mini-slots, and D4 symbols, where D1, D2, D3, and D4 are An integer greater than or equal to 1.

Further, the data transmission method of some embodiments of the present invention further includes: if the instruction message is not received or the instruction message fails to be received, determining that the target transmission is not performed in the target time unit, or determining that The target time unit performs the target transmission according to a predefined or configured time domain resource size and / or location, or, if an indication field for indicating the time domain resource of the target transmission exists in the downlink control channel, it is determined at the target The time unit performs the target transmission according to the time domain resources indicated by the indication domain.

For uplink transmissions, such as the uplink shared channel and ACK / NACK, when transmitting in accordance with a predefined or configured time domain resource size and / or location, the predefined or configured time domain resource size and / or location may be targeted, for example The last 1 or 2 symbols or mini-slot in the time unit, of course, other positions or sizes can also be agreed.

For downlink transmission, such as a downlink shared channel, when transmitting in accordance with a predefined or configured time domain resource size and / or location, the predefined or configured time domain resource size and / or location may be, for example, the former in the target time unit. 1 or 2 symbols or mini-slot, etc. Of course, other positions or sizes can be agreed. It is also possible to blindly detect the downlink control channel at the beginning of the target time unit. When a downlink control channel is detected, the downlink control channel is used. The channel is scheduled for corresponding transmission.

A data transmission method according to some embodiments of the present invention, receiving a downlink control channel and An instruction message for indicating the division of uplink and downlink resources in the time unit; and according to the instruction message, the uplink resource and / or the downlink resource in the target time unit corresponding to the downlink control channel is determined, where the target time unit is the downlink control The time unit in which the target transmission corresponding to the channel is located; determining the time domain resource of the target transmission corresponding to the downlink control channel in the uplink resource or the downlink resource, and performing the target transmission in the time domain resource, realizing the The purpose of transmission in a variable time slot structure further solves the problem that the related art does not give how to transmit in a variable time slot structure.

As shown in FIG. 2, some embodiments of the present invention further provide a data transmission method, which is applied to a base station and includes:

Step 201: Send a downlink control channel and an instruction message for indicating the division of uplink and downlink resources in a time unit.

In this step, the downlink control channel is a downlink control channel using an uplink DCI format (that is, a downlink control channel carrying an uplink scheduling permission, that is, an uplink scheduling instruction UL grant) and / or a downlink control channel using a downlink DCI format (that is, carrying a downlink scheduling). The granted downlink control channel, that is, the downlink scheduling instruction DL grant, includes a downlink control channel indicating the short downlink semi-persistent scheduling SPS resource release).

Optionally, the step of sending an instruction message for indicating the uplink and downlink resource division in the time unit in step 201 includes: sending the instruction message through high-level signaling, a broadcast signal, or the downlink control channel. The instruction message is shared by the terminal or exclusive to the terminal.

Optionally, the step of sending an instruction message for indicating uplink and downlink resource division in a time unit in step 201 further includes: sending in a target time unit corresponding to the downlink control channel or in a time unit before the target time unit. The instruction message.

Step 202: Determine an uplink resource and / or a downlink resource in a target time unit corresponding to the downlink control channel according to the instruction message, where the target time unit is a time unit where a target transmission corresponding to the downlink control channel is located.

This step is the same as step 102 described above, and is not repeated here.

Step 203: Determine a time domain resource in the uplink resource or the downlink resource for the target transmission corresponding to the downlink control channel, and perform the target transmission in the time domain resource.

This step is the same as the above step 103, and is not repeated here. For the uplink shared channel, the base station has the receiving behavior, for the downlink shared channel, the base station has the transmitting behavior, and for the ACK / NACK feedback message, the base station has the receiving behavior.

In the data transmission method of some embodiments of the present invention, the base station sends a downlink control channel and an instruction message for indicating the division of uplink and downlink resources in a time unit; according to the instruction message, the target time unit corresponding to the downlink control channel is determined. Uplink resource and / or downlink resource, wherein the target time unit is the time unit where the target transmission corresponding to the downlink control channel is located; determining the time when the target transmission corresponding to the downlink control channel is in the uplink resource or the downlink resource Domain resource, and the target transmission is performed in the time domain resource, achieving the purpose of performing the target transmission on the determined time domain resource, and further solving how the related technology does not give a description of how to perform in a variable time slot structure. Problems with transmission.

Some embodiments of the present invention take a slot as a time unit as an example. Assume that a slot contains 7 symbols (Orthogonal Frequency Division Multiplexing OFDM or Single Carrier Frequency Division Multiple Access SC-FDMA symbols); of course, other lengths are not excluded. How time units are defined.

The specific implementation process of the data transmission method of some embodiments of the present invention is as follows.

It is assumed that the instruction message sent at a specific time-frequency position in the current time unit is used to indicate the uplink and downlink area division in the current time unit; it is assumed that the UL grant sent in the downlink resource in the current time unit can be scheduled to be physically performed in the uplink area of the current time unit. The uplink shared channel PUSCH transmission (that is, the uplink processing delay of the terminal is sufficient. Of course, this scheduling relationship may not be pre-agreed, and it may be notified in the UL grant. For example, the PUSCH is directly notified at the current or the next or later time units. Transfer).

As shown in FIG. 3, the base station first determines the size of the downlink region and the uplink region divided by the time unit i, and sends an instruction message on a specific time-frequency resource in each time unit for sending the instruction message, which is used to notify the time unit. The division of the uplink and downlink regions can be informed by two indications of the downlink region size, uplink region size, and GP size in a time unit, or one of a plurality of predefined uplink and downlink structure types can be notified; and then in a time unit In the downlink region, a UL grant is sent, and the terminal is scheduled to perform PUSCH transmission in the uplink region in the time unit. Finally, according to the size of the uplink region indicated by the above indication message, the terminal sends the frequency domain resources scheduled by the UL grant to receive the terminal. PUSCH.

The terminal first detects the instruction message on a specific time-frequency resource in each time unit that sends the instruction message, and determines the uplink and downlink area division of the time unit. The specific notification method is consistent with the base station agreement. It can be listed for the base station side. Either way. Wherein, if the uplink and downlink resource division of a time unit is indicated by an instruction message sent in a time unit preceding it, when the terminal determines that a time unit is fully uplink according to the instruction message, it may be determined that no indication is detected in the time unit. Message to achieve the purpose of power saving; then the terminal detects the UL grant in the downlink area of a time unit; finally, when receiving the UL grant, it schedules the message according to the frequency domain in the UL grant in the uplink area in the time unit Perform PUSCH transmission The PUSCH occupies all time domain resources in the uplink region, that is, the PUSCH is transmitted according to the time domain length of the uplink region.

In some embodiments of the present invention, only the indication message sent in the current time unit indicates the division of the uplink and downlink regions in the current time unit is taken as an example. Of course, if the indication relationship is the next or several time units, the manner is similar. Are included in the present invention and are not described in detail; the scheduling relationship may also be that the UL grant transmitted in time unit i is transmitted in PUSCH in time unit i + 1, or the UL grant transmitted in time unit i is scheduled in time unit i and PUSCH is transmitted in i + 1 (of course, more consecutive time units can also be scheduled); various ways of scheduling relationships and various indication relationships of indication messages can be combined with each other.

As shown in FIG. 4, the instruction message sent in the current time unit indicates the uplink and downlink area division in the next time unit. The UL grant sent in the current time unit is scheduled for PUSCH transmission in the uplink area in the next time unit. It is assumed that the time unit The indication message in i + 1 indicates that time unit i + 2 is full uplink, and the uplink area in time unit i + 1 is adjacent to the uplink area in time unit i + 2. At this time, the PUSCH can be scheduled at only one time. The uplink area transmission in the unit, such as PUSCH1 scheduled by UL grant1 and PUSCH3 scheduled by UL grant3, can also be scheduled to transmit across the uplink area in two time units, such as PUSCH2 scheduled by UL grant2.

As shown in FIG. 5, the instruction message sent in the current time unit indicates the uplink and downlink area division in the next time unit. The UL grant sent in the current time unit schedules PUSCH transmission in the uplink area in the current or next time unit. For example, UL grant1 in time unit i is scheduled to transmit PUSCH1 in the uplink area in the next time unit i + 1, and UL grant2 in time unit i + 1 is scheduled to transmit PUSCH2 in the uplink area in the current time unit i + 1. The UL grant3 in the inter unit i + 1 is scheduled to transmit the PUSCH2 in the uplink region in the current time unit i + 1 and the next time unit i + 2; of course, other combinations are also included in the present invention; the above embodiment only uses the PUSCH As an example, occupying all symbol transmissions in the uplink region in a time unit. Of course, if there is an indication message in the UL grant indicating the length of the PUSCH transmission time domain (that is, the number and location of symbols occupied), the PUSCH can also occupy only the uplink region. Symbol transmission.

The above embodiment only uses the UL grant scheduling relationship as an example. The DL grant scheduling relationship is similar, and the ACK / NACK feedback relationship is similar.

The data transmission method of some embodiments of the present invention determines a corresponding transmission time domain resource based on scheduling signaling in the downlink control channel and an instruction message indicating the division of uplink and downlink resources, thereby performing correct transmission.

As shown in FIG. 6, some embodiments of the present invention further provide a terminal, including: a receiving module 601, configured to receive a downlink control channel and an instruction message for indicating an uplink and downlink resource division in a time unit; a first determining module A group 602 is configured to determine an uplink resource and / or a downlink resource in a target time unit corresponding to the downlink control channel according to the instruction message, where the target time unit is a time at which a target transmission corresponding to the downlink control channel is located. A second determining module 603, configured to determine a time domain resource in the uplink resource or the downlink resource for the target transmission corresponding to the downlink control channel, and perform the target transmission in the time domain resource.

In the terminal of some embodiments of the present invention, the receiving module 601 is specifically configured to receive the instruction message through high-level signaling, a broadcast signal, or a downlink control channel.

In the terminal of some embodiments of the present invention, the receiving module 601 is specifically configured to receive the indication message in a target time unit corresponding to the downlink control channel or in a time unit before the target time unit.

For the terminal of some embodiments of the present invention, the target transmission corresponding to the downlink control channel specifically includes: if the format of the DCI used by the downlink control channel is an uplink DCI format, the target transmission corresponding to the downlink control channel is the The uplink shared channel transmission scheduled by the downlink control channel; or, if the format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is the downlink shared channel scheduled by the downlink control channel Transmission; or, if the format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is the ACK / NACK feedback corresponding to the downlink shared channel scheduled by the downlink control channel or the ACK / NACK feedback corresponding to the downlink control channel.

In the terminal of some embodiments of the present invention, the target time unit is one of the following time units: the current time unit where the downlink control channel is transmitted, the A1 time unit after the current time unit, and the current time unit Consecutive A2 time units or consecutive A3 time units after the current time unit, where A1, A2, and A3 are all integers greater than or equal to 1, and A1, A2, and A3 are determined according to pre-agreed rules or based on The configuration of the high-level signaling is determined or determined according to the indication field in the downlink control channel.

For the terminal of some embodiments of the present invention, the second determining module 603 includes: a first determining submodule 6031, configured to use the uplink resource or all symbols in the downlink resource Or all mini-slots or all time slots or all sub-frames or some symbols or some mini-slots or some time-slots or some sub-frames are used as time domain resources for the target transmission; or, the second determining sub-module 6032, When all symbols or all mini-slots or all time slots or all sub-frames or some symbols or some mini-slots or parts of the uplink resources or downlink resources that are pre-approved or configured for data transmission are used The slot or part of the sub-frame is used as the time domain resource for the target transmission. The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

For a terminal according to some embodiments of the present invention, the second determining module 603 includes a third determining submodule 6033, and is used for indicating a time domain resource for indicating the target transmission in the downlink control channel, if According to the indication domain and the indication message, a time domain resource of the target transmission in the uplink resource or the downlink resource is determined.

For the terminal of some embodiments of the present invention, the third determining submodule 6033 includes: a first determining unit 60331, configured to: if the time domain resource indicated by the indication domain does not exceed the uplink resource or the uplink resource determined according to the indication message If the size of the downlink resource does not exceed the size of the uplink resource determined in accordance with the indication message or the size of a region previously agreed upon or configured for data transmission, the time domain resource indicated by the indication domain is used as the target. A transmission time domain resource; a second determining unit 60332, configured to: if the time domain resource indicated by the indication domain exceeds the size of the uplink resource or the downlink resource determined according to the instruction message, use the uplink resource or the downlink resource as The time domain resource transmitted by the target, or the time domain resource indicated by the indication domain is used as the time domain resource transmitted by the target, or the maximum of the uplink resource or the downlink resource and the time domain resource indicated by the indication domain. The value or minimum value is used as the time domain resource for the target transmission; A third determining unit 60333 is configured to: if the time domain resource indicated by the indication domain exceeds the size of the uplink resource or the downlink resource that is previously agreed or configured in the downlink resource determined according to the indication message, The uplink resource or the area pre-approved or configured for data transmission in the downlink resource is used as the time domain resource for the target transmission, or the time domain resource indicated by the indication domain is used as the time domain resource for the target transmission, or the The maximum or minimum value in the uplink resource or the downlink resource that is previously agreed or configured for data transmission and the time domain resource indicated by the indication domain is used as the time domain resource for the target transmission.

In the terminal of some embodiments of the present invention, the indication message is used to indicate resource information of a downlink resource in a target time unit corresponding to the downlink control channel; or it is used to indicate uplink resource in a target time unit corresponding to the downlink control channel. Or at least two of resource information for downlink resources, resource information for uplink resources, and resource information for guard interval GP in a target time unit corresponding to the downlink control channel, where the resource information includes resources Size and / or location; or, used to indicate the structure type of the target time unit corresponding to the downlink control channel.

For the terminal of some embodiments of the present invention, the structure type includes at least one of the following structure types: a first structure type in which symbols or mini-slots or time slots or sub-frames in the target time unit are all used for uplink transmission, the The symbols or mini-slots or time slots or sub-frames in the target time unit are all used for the second structure type of downlink transmission, and the first part of the symbols or mini-slots or time slots or sub-frames in the target time unit are used for For uplink transmission, the second part of the symbol or mini-slot or time slot or sub-frame is used for the downlink transmission of the third structure type.

The terminal of some embodiments of the present invention, the time unit and the target time unit Pre-defined or configured units including D1 sub-frames, D2 time slots, D3 mini-slots, and D4 symbols, where D1, D2, D3, and D4 are integers greater than or equal to 1.

The terminal according to some embodiments of the present invention further includes: a third determining module 604, configured to determine that the instruction is not performed in the target time unit if the instruction message is not received or the instruction message fails to be received. Target transmission, or determine that the target transmission is performed according to a predefined or configured time domain resource size and / or location in the target time unit, or if a time domain resource for indicating the target transmission exists in the downlink control channel Indicates the target domain, and determines that the target transmission is performed in the target time unit according to the time domain resources indicated by the target domain.

The terminal according to some embodiments of the present invention receives a downlink control channel and an instruction message for indicating the division of uplink and downlink resources in a time unit; according to the instruction message, determines an uplink resource in a target time unit corresponding to the downlink control channel and / Or downlink resources, where the target time unit is the time unit where the target transmission corresponding to the downlink control channel is located; determining the time domain resources in the uplink resource or the downlink resource for the target transmission corresponding to the downlink control channel, and Performing the target transmission in the time domain resource achieves the purpose of transmitting in a variable time slot structure, and further solves the problem that the related technology does not give a description of how to transmit in a variable time slot structure.

In order to better achieve the foregoing objective, as shown in FIG. 7, some embodiments of the present invention further provide a terminal. The terminal includes: a processor 700; a memory 720 connected to the processor 700 through a bus interface, and A transceiver 710 connected to the processor 700 through a bus interface; the memory is used to store programs and data used by the processor when performing operations; a downlink control channel is received through the transceiver 710; when the processor 700 calls And execute the memory 720 When the programs and data stored in the program are implemented, the following function modules are implemented: a receiving module for receiving a downlink control channel and an instruction message for indicating the division of uplink and downlink resources in a time unit; a first determining module for The indication message determines an uplink resource and / or a downlink resource in a target time unit corresponding to the downlink control channel, where the target time unit is a time unit in which a target transmission corresponding to the downlink control channel is located; the second determination mode A group for determining a time domain resource in the uplink resource or the downlink resource for the target transmission corresponding to the downlink control channel, and performing the target transmission in the time domain resource.

The processor 700 is configured to read the program in the memory 720 and execute the following process: receiving the downlink control channel and the instruction message for indicating the uplink and downlink resource division in the time unit through the transceiver 710; and determining the downlink control according to the instruction message The uplink resource and / or downlink resource in the target time unit corresponding to the channel, where the target time unit is the time unit where the target transmission corresponding to the downlink control channel is located; it is determined that the target transmission corresponding to the downlink control channel is in the An uplink resource or a time domain resource in the downlink resource, and the target transmission is performed in the time domain resource.

The transceiver 710 is configured to receive and send data under the control of the processor 700.

Among them, in FIG. 7, the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 700 and various circuits of the memory represented by the memory 720 are connected together. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, they will not be further described herein. The bus interface provides an interface. The transceiver 710 may be a plurality of components, including a transmitter and a receiver, which are provided for transmission over a transmission medium. Unit for communication with various other devices. For different user devices, the user interface 730 may also be an interface capable of externally connecting and connecting the required devices. The connected devices include, but are not limited to, a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 when performing operations.

In the terminal of some embodiments of the present invention, the processor 700 is configured to receive, through the transceiver 710, a downlink control channel and an instruction message for indicating an allocation of uplink and downlink resources in a time unit; and according to the instruction message, determine a corresponding value of the downlink control channel. An uplink resource and / or a downlink resource in a target time unit, where the target time unit is a time unit where a target transmission corresponding to the downlink control channel is located; determining that the target transmission corresponding to the downlink control channel is in the uplink resource or the Time-domain resources in downlink resources, and the target transmission is performed in the time-domain resources, achieving the purpose of transmission in a variable time slot structure, and further solving how the related technology does not give a description of how to use the variable time slot structure. Problems with transmission.

As shown in FIG. 8, some embodiments of the present invention further provide a base station, including: a sending module 801, configured to send a downlink control channel and an instruction message for indicating an uplink and downlink resource division in a time unit; a fourth determination Module 802 is configured to determine an uplink resource and / or a downlink resource in a target time unit corresponding to the downlink control channel according to the instruction message, where the target time unit is where a target transmission corresponding to the downlink control channel is located. A time unit; a fifth determination module 803, configured to determine a time domain resource in the uplink resource or the downlink resource for the target transmission corresponding to the downlink control channel, and perform the target transmission in the time domain resource.

In the base station according to some embodiments of the present invention, the sending module 801 is specifically configured to send the instruction message through high-level signaling, a broadcast signal, or the downlink control channel.

In the base station according to some embodiments of the present invention, the sending module 801 is specifically configured to send the instruction message in a target time unit corresponding to the downlink control channel or in a time unit before the target time unit.

In the base station according to some embodiments of the present invention, the target transmission corresponding to the downlink control channel specifically includes: if the format of the DCI used by the downlink control channel is an uplink DCI format, the target transmission corresponding to the downlink control channel is The uplink shared channel transmission scheduled by the downlink control channel; or, if the format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is the downlink shared channel scheduled by the downlink control channel Channel transmission; or, if the format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is the ACK / NACK feedback corresponding to the downlink shared channel scheduled by the downlink control channel or ACK / NACK feedback corresponding to the downlink control channel.

In the base station of some embodiments of the present invention, the target time unit is one of the following time units: the current time unit in which the downlink control channel is transmitted, the A1 time unit after the current time unit, and the current time unit starts Consecutive A2 time units or consecutive A3 time units after the current time unit, where A1, A2, and A3 are all integers greater than or equal to 1, and A1, A2, and A3 are determined according to pre-agreed rules or Determined according to the configuration of higher layer signaling or determined according to the indication field in the downlink control channel.

In the base station according to some embodiments of the present invention, the fifth determining module 803 includes: a fourth determining submodule 8031, configured to use the uplink resource or all symbols in the downlink resource or all mini-slots or all time slots Or all sub-frames or partial symbols or partial mini-slots or partial time slots or partial sub-frames are used as the time domain resources for the target transmission; or, the fifth determining sub-module 8032 is used for the uplink resource or the downlink resource All the symbols or all mini-slots or all time slots or all sub-frames or partial symbols or part of mini-slots or part of time slots or part of sub-frames in the resources for data transmission that are pre-approved or configured in Time-domain resources for transmission; where the mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

In the base station according to some embodiments of the present invention, the fifth determining module 803 includes: a sixth determining submodule 8033, which is used to indicate an indication domain for indicating a time domain resource of the target transmission in the downlink control channel, Then, according to the indication domain and the indication message, a time domain resource of the target transmission in the uplink resource or the downlink resource is determined.

In the base station according to some embodiments of the present invention, the sixth determining submodule 8033 includes: a fourth determining unit 80331, configured to: if the time domain resource indicated by the indication domain does not exceed the uplink resource determined according to the indication message or If the size of the downlink resource does not exceed the size of the uplink resource determined in accordance with the instruction message or the size of an area previously agreed or configured for data transmission in the downlink resource, the time domain resource indicated by the indication domain is used as the A target transmission time domain resource; a fifth determining unit 80332 is configured to: if the time domain resource indicated by the indication domain exceeds the size of the uplink resource or the downlink resource determined according to the instruction message, use the uplink resource or the downlink resource As the time domain resource transmitted by the target, or as the time domain resource indicated by the indication domain The time domain resource of the target transmission, or the maximum or minimum value of the uplink resource or the downlink resource and the time domain resource indicated by the indication domain as the time domain resource of the target transmission; a sixth determining unit 80333, configured to: If the time domain resource indicated by the indication domain exceeds the size of an area previously agreed or configured for data transmission in the uplink resource or the downlink resource determined according to the instruction message, the uplink resource or the downlink resource is The agreed or configured area for transmitting data is used as the time domain resource for the target transmission, or the time domain resource indicated by the indication domain is used as the time domain resource for the target transmission, or the uplink resource or the downlink resource is pre-selected. The maximum or minimum value of the time domain resource indicated or configured in the area for data transmission and the indication domain is used as the time domain resource for the target transmission.

In the base station according to some embodiments of the present invention, the indication message is used to indicate resource information of a downlink resource in a target time unit corresponding to the downlink control channel; or is used to indicate an uplink in a target time unit corresponding to the downlink control channel. Resource information of the resource; or at least two of resource information of the downlink resource, resource information of the uplink resource, and resource information of the guard interval GP in the target time unit corresponding to the downlink control channel, where the resource information includes Resource size and / or location; or, used to indicate the structure type of the target time unit corresponding to the downlink control channel.

In the base station according to some embodiments of the present invention, the structure type includes at least one of the following structure types: a symbol, a mini-slot, a time slot, or a sub-frame in the target time unit are all used for uplink transmission, a first structure type, All symbols or mini-slots or time slots or sub-frames in the target time unit are used for the second structure type of downlink transmission, and the first part of symbols or mini-slots or time slots or sub-frames in the target time unit are used. For uplink transmission, the second part of the symbol or mini-slot or time slot or The sub-frame is used for the third structure type of downlink transmission.

In some embodiments of the base station of the present invention, the time unit and the target time unit are pre-defined or configured units including D1 sub-frames, D2 time slots, D3 mini-slots, and D4 symbols, where D1 , D2, D3, and D4 are integers greater than or equal to 1.

The base station according to some embodiments of the present invention further includes a sixth determining module 804, configured to determine that the target transmission is not performed in the target time unit if the terminal does not receive the instruction message or the instruction message fails to be received. Or, determine that the target transmission is performed in the target time unit according to a predefined or configured time domain resource size and / or location, or if there is an indication in the downlink control channel for indicating the time domain resource of the target transmission Domain, determining that the target transmission is performed in the target time unit according to the time domain resources indicated by the indication domain.

The base station according to some embodiments of the present invention sends a downlink control channel and an instruction message for indicating the allocation of uplink and downlink resources in a time unit; according to the instruction message, the uplink resources and the target time unit corresponding to the downlink control channel are determined. And / or downlink resources, where the target time unit is a time unit where a target transmission corresponding to the downlink control channel is located; determining a time domain resource in the uplink resource or the downlink resource for the target transmission corresponding to the downlink control channel, And the target transmission is performed in the time domain resource to achieve the purpose of the target transmission on the determined time domain resource, and then the problem of how to perform transmission in a variable time slot structure that is not given in the related technology is solved. .

In order to better achieve the foregoing objective, as shown in FIG. 9, some embodiments of the present invention further provide a base station, which includes: a processor 900; a memory connected to the processor 900 through a bus interface. 920, and connected to the processor 900 through a bus interface The transceiver 910; the memory 920 is used to store programs and data used by the processor when performing operations; send data messages or pilots through the transceiver 910, and also receive uplink control channels through the transceiver 910; when When the processor 900 calls and executes the programs and data stored in the memory 920, it implements the following function modules: a sending module for sending a downlink control channel and an instruction message for indicating the allocation of uplink and downlink resources in a time unit A fourth determining module, configured to determine an uplink resource and / or a downlink resource in a target time unit corresponding to the downlink control channel according to the instruction message, where the target time unit is a target corresponding to the downlink control channel The time unit where the transmission is located; a fifth determination module, configured to determine a time domain resource in the uplink resource or the downlink resource for the target transmission corresponding to the downlink control channel, and perform the target transmission in the time domain resource.

The processor 900 is configured to read the program in the memory 920 and execute the following processes: sending a downlink control channel and an instruction message for indicating the uplink and downlink resource division in the time unit through the transceiver 910; and determining the downlink control according to the instruction message The uplink resource and / or downlink resource in the target time unit corresponding to the channel, where the target time unit is the time unit where the target transmission corresponding to the downlink control channel is located; it is determined that the target transmission corresponding to the downlink control channel is in the An uplink resource or a time domain resource in the downlink resource, and the target transmission is performed in the time domain resource.

The transceiver 910 is configured to receive and send data under the control of the processor 900.

Among them, in FIG. 9, the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 900 and various circuits of the memory represented by the memory 920 are connected together. The bus architecture can also And various other circuits, such as power management circuits, are well-known in the art, so they will not be further described herein. The bus interface provides an interface. The transceiver 910 may be multiple elements, including a transmitter and a transceiver, providing a unit for communicating with various other devices over a transmission medium. The processor 900 is responsible for managing the bus architecture and general processing. The memory 920 may store data used by the processor 900 when performing operations.

In the base station according to some embodiments of the present invention, the processor 900 is configured to send, through the transceiver 910, a downlink control channel and an instruction message for indicating the division of uplink and downlink resources in a time unit; and according to the instruction message, determine the corresponding downlink control channel. The uplink resource and / or the downlink resource in the target time unit, wherein the target time unit is the time unit where the target transmission corresponding to the downlink control channel is located; it is determined that the target transmission corresponding to the downlink control channel is in the uplink resource or The time domain resource in the downlink resource, and the target transmission is performed in the time domain resource, achieving the purpose of performing the target transmission on the determined time domain resource, and further solving how the related technology does not give a The problem of transmission in the slot structure.

The above descriptions are only some embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. within.

Claims (48)

A data transmission method applied to a terminal includes receiving a downlink control channel and an instruction message for indicating an uplink and downlink resource division in a time unit; and determining the uplink resource in a target time unit corresponding to the downlink control channel according to the instruction message. And / or downlink resources, where the target time unit is the time unit in which the target transmission corresponding to the downlink control channel is located; determining the time domain resources of the target resource corresponding to the downlink control channel in the uplink resource or the downlink resource And perform the target transmission in the time domain resource. The data transmission method according to claim 1, wherein the step of receiving an instruction message for indicating an uplink / downlink resource division in a time unit includes: receiving the instruction message through high-level signaling, a broadcast signal, or a downlink control channel. The data transmission method according to claim 1, wherein the step of receiving an instruction message for indicating an uplink and downlink resource division in a time unit includes: in a target time unit corresponding to the downlink control channel or before the target time unit Receiving the instruction message in the time unit of. The data transmission method according to claim 1, wherein the target transmission corresponding to the downlink control channel specifically includes: if the format of the DCI used by the downlink control channel is an uplink DCI format, the data corresponding to the downlink control channel is The target transmission is the uplink shared channel transmission scheduled by the downlink control channel; or, if the format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is scheduled by the downlink control channel. Or if the format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is the ACK / corresponding to the downlink shared channel scheduled by the downlink control channel. NACK feedback or ACK / NACK feedback corresponding to the downlink control channel. The data transmission method according to claim 1, wherein the target time unit is one of the following time units: a current time unit in which the downlink control channel is transmitted, an A1 time unit subsequent to the current time unit, and the current time unit A2 time units at the beginning of the time unit or A3 time units after the current time unit, where A1, A2, and A3 are all integers greater than or equal to 1, and A1, A2, and A3 are based on pre-agreed rules Determined or determined according to a configuration of high-level signaling or determined according to an indication field in the downlink control channel. The data transmission method according to claim 1, wherein the step of determining a target corresponding to the downlink control channel to transmit the time domain resource in the uplink resource or the downlink resource includes: the uplink resource or the downlink resource All the symbols or all mini-slots or all time slots or all sub-frames or some symbols or some mini-slots or some time slots or some sub-frames in the target are used as time domain resources for the target transmission; or, the uplink resources are transmitted. Or all the symbols or all mini-slots or all time slots or all sub-frames or some symbols or some mini-slots or some time-slots or some sub-frames in the resources for data transmission that are pre-agreed or configured in the downlink resources The time domain resource transmitted as the target; wherein the mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1. The data transmission method according to claim 1, wherein the step of determining a target corresponding to the downlink control channel to transmit the time domain resource in the uplink resource or the downlink resource includes: if there is a use in the downlink control channel; In the indication domain indicating the time domain resource of the target transmission, the time domain resource of the target transmission in the uplink resource or the downlink resource is determined according to the indication domain and the indication message. The data transmission method according to claim 7, wherein the step of determining the target to transmit time domain resources in the uplink resource or the downlink resource according to the indication domain and the indication message includes: if the indication domain is The indicated time domain resource does not exceed the size of the uplink resource or the downlink resource determined according to the instruction message, or does not exceed the uplink resource or the downlink resource determined in advance according to the instruction message for data transmission. The size of the area, The time domain resource indicated by the domain is used as the time domain resource transmitted by the target; or, if the time domain resource indicated by the indication domain exceeds the size of the uplink resource or the downlink resource determined according to the instruction message, the uplink resource or The downlink resource is used as the time domain resource of the target transmission, or the time domain resource indicated by the indication domain is used as the time domain resource of the target transmission, or the uplink resource or the downlink resource and the time domain indicated by the indication domain The maximum or minimum value of the resource is used as the time domain resource for the target transmission; or, if the time domain resource indicated by the indication domain exceeds the uplink resource or the pre-appointed or configured use of the downlink resource determined according to the indication message The size of the area for transmitting data, then use the uplink resource or the area previously scheduled or configured for data transmission in the downlink resource as the time domain resource for the target transmission, or use the time domain resource indicated by the indication domain as The time domain resource transmitted by the target, or the area previously agreed or configured in the uplink resource or the downlink resource for transmitting data and Field indicates time domain resources as indicated by the maximum or minimum value as the target transmission time domain resource. The data transmission method according to claim 1, wherein the indication message is used to indicate resource information of a downlink resource in a target time unit corresponding to the downlink control channel; or used to indicate a target time corresponding to the downlink control channel Resource information of the uplink resource in the unit; or at least two of resource information of the downlink resource, resource information of the uplink resource, and resource information of the guard interval GP in the target time unit corresponding to the downlink control channel, where: The resource information includes resource size and / or location; or, it is used to indicate a structure type of a target time unit corresponding to the downlink control channel. The data transmission method according to claim 9, wherein the structure type includes at least one of the following structure types: symbols or mini-slots or time slots or sub-frames in the target time unit are all used for the first uplink transmission The structure type, the symbol or mini-slot or time slot or sub-frame in the target time unit are all the second structure type, the first part of the symbol or mini-slot or time slot or sub-frame in the target time unit. The frame is used for uplink transmission, and the second part symbol or mini-slot or time slot or sub frame is used for downlink transmission of the third structure type. The data transmission method according to claim 1, wherein the time unit and the target time unit are predefined or configured units including D1 sub-frames, D2 time slots, D3 mini-slots, and D4 symbols, respectively. , Where D1, D2, D3, and D4 are integers greater than or equal to 1. The data transmission method according to claim 1, further comprising: if the instruction message is not received or the instruction message fails to be received, determining that the target transmission is not performed in the target time unit, or determining that the target time unit is not performed; The target transmission is performed according to a pre-defined or configured time domain resource size and / or location, or, if an indication domain for indicating the time domain resource of the target transmission exists in the downlink control channel, it is determined in the target time unit The target transmission is performed according to the time domain resources indicated by the indication domain. A data transmission method applied to a base station includes sending a downlink control channel and an instruction message for indicating the allocation of uplink and downlink resources in a time unit; and determining an uplink in a target time unit corresponding to the downlink control channel according to the instruction message. Resources and / or downlink resources, where the target time unit is the time unit where the target transmission corresponding to the downlink control channel is located; determining the time domain of the target transmission corresponding to the downlink control channel in the uplink resource or the downlink resource Resource, and the target transmission is performed in the time domain resource. The data transmission method according to claim 13, wherein the step of sending an instruction message for indicating the allocation of uplink and downlink resources in a time unit includes: sending the instruction message through high-level signaling, a broadcast signal, or the downlink control channel. The data transmission method according to claim 13, wherein the step of sending an instruction message for indicating uplink and downlink resource division in a time unit includes: in a target time unit corresponding to the downlink control channel or before the target time unit The instruction message is sent in the time unit of. The data transmission method according to claim 13, wherein the target transmission corresponding to the downlink control channel specifically includes: if the format of the DCI used by the downlink control channel is an uplink DCI format, the data corresponding to the downlink control channel is The target transmission is the uplink shared channel transmission scheduled by the downlink control channel; Or, if the format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is the downlink shared channel transmission scheduled by the downlink control channel; or, if the downlink control channel is used The format of the DCI is the downlink DCI format, so the target transmission corresponding to the downlink control channel is the ACK / NACK feedback corresponding to the downlink shared channel scheduled by the downlink control channel or the ACK / NACK feedback corresponding to the downlink control channel. The data transmission method according to claim 13, wherein the target time unit is one of the following time units: the current time unit in which the downlink control channel is transmitted, the A1 time unit after the current time unit, and the current time unit A2 time units at the beginning of the time unit or A3 time units after the current time unit, where A1, A2, and A3 are all integers greater than or equal to 1, and A1, A2, and A3 are based on pre-agreed rules Determined or determined according to a configuration of high-level signaling or determined according to an indication field in the downlink control channel. The data transmission method according to claim 13, wherein the step of determining a target corresponding to the downlink control channel to transmit the time domain resource in the uplink resource or the downlink resource includes: the uplink resource or the downlink resource All the symbols or all mini-slots or all time slots or all sub-frames or some symbols or some mini-slots or some time slots or some sub-frames in the target are used as time domain resources for the target transmission; or, the uplink resources are transmitted. Or all the symbols or all mini-slots or all time slots or all sub-frames or some symbols or some mini-slots or some time-slots or some sub-frames in the resources for data transmission that are pre-agreed or configured in the downlink resources The time domain resource transmitted as the target; wherein the mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1. The data transmission method according to claim 13, wherein the step of determining a target corresponding to the downlink control channel to transmit the time domain resource in the uplink resource or the downlink resource includes: if there is a use in the downlink control channel; In the indication field indicating the time domain resource of the target transmission, according to the indication field and the indication message, it is determined whether the target transmission is on the uplink resource or the downlink resource. Time domain resources in the source. The data transmission method according to claim 19, wherein the step of determining the target to transmit the time domain resource in the uplink resource or the downlink resource according to the indication field and the indication message includes: if the indication field is The indicated time domain resource does not exceed the size of the uplink resource or the downlink resource determined according to the instruction message, or does not exceed the uplink resource or the downlink resource determined in advance according to the instruction message for data transmission. The size of the area, the time domain resource indicated by the indication domain is used as the time domain resource transmitted by the target; or, if the time domain resource indicated by the indication domain exceeds the uplink resource or the downlink resource determined according to the instruction message The size of the uplink resource or the downlink resource as the time domain resource of the target transmission, or the time domain resource indicated by the indication domain as the time domain resource of the target transmission, or the uplink resource or the downlink resource and The maximum or minimum value of the time domain resource indicated by the indication domain is used as the time domain resource transmitted by the target; or, if the indication domain The indicated time domain resource exceeds the size of the area for data transmission that is pre-approved or configured in the uplink resource or the downlink resource determined according to the indication message. Use the time domain resource transmitted by the target in the area where the data is transmitted, or use the time domain resource indicated by the indication domain as the time domain resource for the target transmission, or use the uplink resource or the downlink resource in advance to be agreed or configured. The maximum value or the minimum value in the time domain resource indicated by the data transmission area and the indication domain is used as the time domain resource for the target transmission. The data transmission method according to claim 13, wherein the indication message is used to indicate resource information of a downlink resource in a target time unit corresponding to the downlink control channel; or used to indicate a target time corresponding to the downlink control channel Resource information of the uplink resource in the unit; or at least two of resource information of the downlink resource, resource information of the uplink resource, and resource information of the guard interval GP in the target time unit corresponding to the downlink control channel, where: The resource information includes resource size and / or location; or, it is used to indicate a structure type of a target time unit corresponding to the downlink control channel. The data transmission method according to claim 21, wherein the structure type includes at least one of the following structure types: symbols or mini-slots or time slots or sub-frames in the target time unit are all used for the first transmission of the uplink The structure type, the symbol or mini-slot or time slot or sub-frame in the target time unit are all the second structure type, the first part of the symbol or mini-slot or time slot or sub-frame in the target time unit. The frame is used for uplink transmission, and the second part symbol or mini-slot or time slot or sub frame is used for downlink transmission of the third structure type. The data transmission method according to claim 13, wherein the time unit and the target time unit are predefined or configured units including D1 sub-frames, D2 time slots, D3 mini-slots, and D4 symbols, respectively. , Where D1, D2, D3, and D4 are integers greater than or equal to 1. The data transmission method according to claim 13, further comprising: if the instruction message is not received or the instruction message fails to be received, determining that the target transmission is not performed in the target time unit, or determining that the target time unit is not performed; The target transmission is performed according to a pre-defined or configured time domain resource size and / or location, or, if an indication domain for indicating the time domain resource of the target transmission exists in the downlink control channel, it is determined in the target time unit The target transmission is performed according to the time domain resources indicated by the indication domain. A terminal includes a processor, a transceiver, and a memory; wherein the processor is used to read a program in the memory and execute the following processes: receiving a downlink control channel and an instruction message for indicating an uplink and downlink resource division in a time unit ; Determine the uplink resource and / or the downlink resource in the target time unit corresponding to the downlink control channel according to the instruction message, wherein the target time unit is the time unit in which the target transmission corresponding to the downlink control channel is located; determine the The target corresponding to the downlink control channel transmits the time domain resource in the uplink resource or the downlink resource, and performs the target transmission in the time domain resource; the transceiver is used to receive and send data; the memory is used to save The data used by this processor to perform operations. The terminal according to claim 25, wherein the processor is configured to read a program in the memory, The following process is further performed: the instruction message is received through high-level signaling, a broadcast signal, or a downlink control channel. The terminal according to claim 25, wherein the processor is configured to read a program in the memory and further execute the following process: in a target time unit corresponding to the downlink control channel or a time unit before the target time unit To receive the instruction message. The terminal according to claim 25, wherein the target transmission corresponding to the downlink control channel specifically includes: if the format of the DCI used by the downlink control channel is an uplink DCI format, the target transmission corresponding to the downlink control channel The uplink shared channel transmission scheduled for the downlink control channel; or, if the format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is the downlink scheduled by the downlink control channel Shared channel transmission; or, if the format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is the ACK / NACK feedback corresponding to the downlink shared channel scheduled by the downlink control channel Or the ACK / NACK feedback corresponding to the downlink control channel. The terminal according to claim 25, wherein the target time unit is one of the following time units: the current time unit in which the downlink control channel is transmitted, the A1 time unit after the current time unit, and the current time unit A2 consecutive time units at the beginning or A3 consecutive time units after the current time unit, where A1, A2, and A3 are all integers greater than or equal to 1, and A1, A2, and A3 are determined according to pre-agreed rules Or it is determined according to the configuration of high-level signaling or according to the indication field in the downlink control channel. The terminal according to claim 25, wherein the processor is configured to read a program in the memory and further execute the following process: all symbols or all mini-slots or all time slots in the uplink resource or the downlink resource Or all sub-frames or partial symbols or partial mini-slots or partial time slots or partial sub-frames are used as the time domain resources for the target transmission; or, All the symbols or all mini-slots or all time slots or all sub-frames or some symbols or some mini-slots or some time slots in the uplink or downlink resources that are pre-approved or configured for data transmission. Part of the sub-frame is used as the time domain resource for the target transmission. The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1. The terminal according to claim 25, wherein the processor is configured to read a program in the memory and further execute the following process: if there is an indication field in the downlink control channel for indicating a time domain resource of the target transmission, Then, according to the indication domain and the indication message, a time domain resource of the target transmission in the uplink resource or the downlink resource is determined. The terminal according to claim 31, wherein the processor is configured to read a program in the memory and further execute the following process: if the time domain resource indicated by the indication domain does not exceed the uplink resource determined according to the instruction message Or the size of the downlink resource, or the size of the uplink resource determined in accordance with the indication message or the size of a region previously agreed or configured for data transmission in the downlink resource, the time domain resource indicated by the indication domain is taken as The time domain resource transmitted by the target; if the time domain resource indicated by the indication domain exceeds the size of the uplink resource or the downlink resource determined according to the instruction message, using the uplink resource or the downlink resource as the time domain of the target transmission Resource, or use the time domain resource indicated by the indication domain as the time domain resource for the target transmission, or use the maximum or minimum value of the uplink resource or the downlink resource and the time domain resource indicated by the indication domain as the Time-domain resources of the target transmission; if the time-domain resources indicated by the indication domain exceed the uplink resources or the downlink determined according to the indication message The size of the area pre-approved or configured in the source for data transmission, then use the uplink resource or the area pre-approved or configured in the downlink resource for data transmission as the time domain resource for the target transmission, or set the indication The time domain resource indicated by the domain is used as the time domain resource transmitted by the target, or the maximum of the time domain resources indicated by the indicated domain in the uplink resource or the downlink resource is pre-appointed or configured for data transmission. The value or minimum value is used as the time domain resource for this target transmission. The terminal according to claim 25, wherein the indication message is used to indicate resource information of a downlink resource in a target time unit corresponding to the downlink control channel; or is used to indicate a resource time in a target time unit corresponding to the downlink control channel. Resource information of uplink resources; or at least two of resource information of downlink resources, resource information of uplink resources, and resource information of guard interval GP in a target time unit corresponding to the downlink control channel, among which resource information It includes resource size and / or location; or, it is used to indicate the structure type of the target time unit corresponding to the downlink control channel. The terminal according to claim 33, wherein the structure type includes at least one of the following structure types: symbols, mini-slots, time slots, or sub-frames in the target time unit are all used for uplink transmission. 2. The second structure type of symbols or mini-slots or time slots or sub-frames in the target time unit are all used for downlink transmission. The first part of symbols or mini-slots or time slots or sub-frames in the target time unit. The third structure type is used for uplink transmission, and the second part symbol or mini-slot or time slot or sub-frame is used for downlink transmission. The terminal according to claim 25, wherein the time unit and the target time unit are respectively predefined or configured units including D1 subframes, D2 time slots, D3 mini-slots, and D4 symbols, wherein D1, D2, D3, and D4 are integers greater than or equal to 1. The terminal according to claim 25, wherein the processor is configured to read a program in the memory and further execute the following process: if the instruction message is not received or the instruction message fails to be received, determine the target time unit The target transmission is not performed, or it is determined that the target transmission is performed according to a pre-defined or configured time domain resource size and / or location in the target time unit, or if there is an indication in the downlink control channel for the target transmission The indication domain of the time domain resource is determined to perform the target transmission in the target time unit according to the time domain resource indicated by the indication domain. A base station includes a processor, a transceiver, and a memory; wherein the processor is used to read a program in the memory and execute the following processes: sending a downlink control channel and an instruction for indicating uplink and downlink resource division in a time unit message; Determining the uplink resource and / or the downlink resource in the target time unit corresponding to the downlink control channel according to the instruction message, wherein the target time unit is a time unit in which the target transmission corresponding to the downlink control channel is located; determining the downlink The target corresponding to the control channel transmits the time domain resource in the uplink resource or the downlink resource, and the target transmission is performed in the time domain resource; the transceiver is used to receive and send data; the memory is used to save the Information used by the processor to perform operations. The base station according to claim 37, wherein the processor is configured to read a program in the memory and further execute the following process: sending the instruction message through high-level signaling, a broadcast signal, or the downlink control channel. The base station according to claim 37, wherein the processor is configured to read a program in the memory, and further execute the following process: in a target time unit corresponding to the downlink control channel or before the target time unit The instruction message is sent in the time unit of. The base station according to claim 37, wherein the target transmission corresponding to the downlink control channel specifically includes: if the format of the DCI used by the downlink control channel is an uplink DCI format, the target corresponding to the downlink control channel The transmission is the uplink shared channel transmission scheduled by the downlink control channel; or, if the format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is the one scheduled by the downlink control channel. Downlink shared channel transmission; or, if the format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is the ACK / NACK corresponding to the downlink shared channel scheduled by the downlink control channel Feedback or ACK / NACK feedback corresponding to the downlink control channel. The base station according to claim 37, wherein the target time unit is one of the following time units: a current time unit in which the downlink control channel is transmitted, an A1 time unit subsequent to the current time unit, and the current time A2 time units at the beginning of the unit or the A3 consecutive time units after the current time unit, where A1, A2, and A3 are all integers greater than or equal to 1, A1, A2, and A3 are determined according to pre-agreed rules or determined by the configuration of higher-level signaling Or determined according to the indication field in the downlink control channel. The base station according to claim 37, wherein the processor is configured to read a program in the memory and further execute the following process: all symbols or all mini-slots or all time in the uplink resource or the downlink resource Slot or all sub-frames or partial symbols or partial mini-slots or partial time slots or partial sub-frames as the time domain resources for the target transmission; or, the uplink resources or downlink resources are pre-approved or configured for transmission All symbols or all mini-slots or all time slots or all sub-frames or partial symbols or partial mini-slots or partial time slots or partial sub-frames in the resource of the data are used as the time domain resources for the target transmission; A mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1. The base station according to claim 37, wherein the processor is configured to read a program in the memory, and further execute the following process: if there is an indication field in the downlink control channel for indicating a time domain resource of the target transmission , According to the indication domain and the indication message, determine a time domain resource of the target transmission in the uplink resource or the downlink resource. The base station according to claim 43, wherein the processor is configured to read a program in the memory and further execute the following process: if the time domain resource indicated by the indication domain does not exceed the uplink determined according to the instruction message If the size of the resource or the downlink resource does not exceed the size of the uplink resource or the area of the downlink resource that is predetermined or configured for data transmission according to the indication message, then the time domain resource indicated by the indication domain The time domain resource transmitted as the target; if the time domain resource indicated by the indication domain exceeds the size of the uplink resource or the downlink resource determined according to the instruction message, the uplink resource or the downlink resource is used as the time for the target transmission Domain resource, or the time domain resource indicated by the indication domain as the time domain resource transmitted by the target, or the maximum of the uplink resource or the downlink resource and the time domain resource indicated by the indication domain The value or minimum value is used as the time domain resource for the target transmission; if the time domain resource indicated by the indication domain exceeds the uplink resource or the downlink resource determined in accordance with the instruction message, the area for data transmission that is previously agreed or configured Size, use the uplink resource or the area pre-approved or configured for data transmission in the downlink resource as the time domain resource for the target transmission, or use the time domain resource indicated by the indication domain as the time domain for the target transmission Or the maximum or minimum value of the uplink resource or the downlink resource that is pre-approved or configured for data transmission and the time domain resource indicated by the indication domain as the time domain resource for the target transmission. The base station according to claim 37, wherein the indication message is used to indicate resource information of a downlink resource in a target time unit corresponding to the downlink control channel; or used to indicate a target time unit corresponding to the downlink control channel Resource information of the uplink resource; or at least two of the resource information of the downlink resource, the resource information of the uplink resource, and the resource information of the guard interval GP in the target time unit corresponding to the downlink control channel; The message includes the resource size and / or location; or, it is used to indicate the structure type of the target time unit corresponding to the downlink control channel. The base station according to claim 45, wherein the structure type includes at least one of the following structure types: a first structure in which symbols or mini-slots or time slots or sub-frames in the target time unit are all used for uplink transmission Type, the symbol or mini-slot or time slot or sub-frame in the target time unit, all of the second structure type used for downlink transmission, the first part of the symbol or mini-slot or time slot or sub-frame in the target time unit The frame is used for uplink transmission, and the second part symbol or mini-slot or time slot or sub-frame is used for downlink transmission of the third structure type. The base station according to claim 37, wherein the time unit and the target time unit are predefined or configured units including D1 subframes, D2 time slots, D3 mini-slots, and D4 symbols, D1, D2, D3, and D4 are integers greater than or equal to 1. The base station according to claim 37, wherein the processor is configured to read a program in the memory and further execute the following process: If the terminal does not receive the indication message or the indication message fails to be received, then it is determined that the target transmission is not performed in the target time unit, or it is determined that the time domain resource size and / or Or position for the target transmission, or if there is an indication field in the downlink control channel for indicating the time domain resource of the target transmission, determining that the target is performed in the target time unit according to the time domain resource indicated by the indication field transmission.