TWI678118B - Data transmission method, terminal and base station - Google Patents

Abstract

The invention provides a data transmission method, a terminal and a base station. The data transmission method of the present invention includes: receiving a downlink control channel carrying an indication field, where the indication field is used to indicate time domain resources of a target transmission corresponding to the downlink control channel and / or uplink and downlink of a target time unit where the target transmission is located Resource division; according to the indication domain, determine a time domain resource of a target transmission corresponding to the downlink control channel; and transmit data on the time domain resource.

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.

In order to achieve the above object, an embodiment of the present invention provides a data transmitting party The method is applied to a terminal and includes: receiving a downlink control channel carrying an indication field, where the indication field is used to indicate time domain resources of a target transmission corresponding to the downlink control channel and / or uplink and downlink of a target time unit where the target transmission is located Resource division; according to the indication domain, determine a time domain resource of a target transmission corresponding to the downlink control channel; and transmit data on the time domain resource.

The indication field is only used to indicate the time domain resource of the target transmission corresponding to the downlink control channel. The step of determining the time domain resource of the target transmission corresponding to the downlink control channel according to the indication field includes: The time domain resource indicated by the indication domain is used as the time domain resource transmitted by the target corresponding to the downlink control channel.

The indication field is only used to indicate the uplink and downlink resource division of the target time unit where the target transmission is located. The step of determining the time domain resource of the target transmission corresponding to the downlink control channel according to the indication field includes: according to the instruction Domain, determine the uplink resource and / or downlink resource of the target time unit where the target transmission is located; use the uplink resource or all or part of the downlink resource as the time domain resource of the target transmission; or use the uplink resource or downlink All or part of the resources that are pre-agreed or configured in the resource for transmitting data are used as time-domain resources for the target transmission.

The indication field is used to indicate a target transmission corresponding to the downlink control channel. The time domain resources of the target and the uplink and downlink resource division of the target time unit where the target transmission is located; the step of determining the time domain resources of the target transmission corresponding to the downlink control channel according to the indication domain, including: indicating by the indication domain Time domain resources as the time domain resources of the target transmission corresponding to the downlink control channel; or, according to the indication domain, determine the uplink resources and / or downlink resources of the target time unit where the target transmission is located, and use the uplink resources or All or part of the downlink resources are used as the time domain resources for the target transmission; or all or part of the uplink resources or downlink resources that are pre-approved or configured for data transmission are used as the target transmission time Domain resources; or, determining the time domain resources of the target transmission according to the time domain resources indicated by the indication domain and the uplink and downlink resource division of the target time unit.

The step of determining the time domain resource of the target transmission according to the time domain resource indicated by the indication domain and the uplink and downlink resource division of the target time unit includes: All or part of the time domain resource, the maximum value, minimum value, intersection or union of the time domain resource indicated by the indication domain, as the time domain resource transmitted by the target; or, All or part of the time domain resources of the agreed or configured resources for transmitting data and the maximum, minimum, intersection, or union of the time domain resources indicated by the indication domain are used as the time domain resources transmitted by the target; Or, 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 indication field, or does not exceed the pre-agreed or configured in the uplink resource or the downlink resource determined according to the indication field The size of the area used to transmit data, the The time domain resource 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 indication domain, 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, minimum, intersection, or union 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 downlink resource determined in advance according to the indication domain, or configured 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 uplink resource or the downlink resource is pre-approved or configured for the data transmission area and Field indicates a maximum time domain resources as indicated by the minimum value, and sets as an intersection or the target transmission time domain resource.

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, then the target transmission corresponding to the downlink control channel corresponds to the downlink shared channel scheduled by the downlink control channel. ACK / NACK feedback or 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 time domain resource indicated by the indication field includes one or more of the following information: the number of symbols, the position of the symbols, the number of mini-slots, the position of mini-slots, the number of time slots, the position of time slots, and The number of frames and the position of the sub-frame; where the mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

The uplink and downlink resource division of the target time unit where the target transmission is indicated by the indication field specifically includes: resource information of downlink resources in the target time unit where the target transmission is located; or, the target time unit where the target transmission is located 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 where the target transmission is located, where the resource information includes the resource size And / or location; or, 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: all symbols or mini-slots or time slots or sub-frames in the target time unit are used for uplink transmission. The first structure type of the input, the symbol or mini-slot in the target time unit or the time slot or the sub-frame are all used for the downlink transmission of the second structure type, the first part of the symbol or mini-slot in the target time unit, or The time slot or sub-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 target time unit is a unit that is defined or configured in advance and includes D1 subframes, D2 time slots, D3 mini-slots, or D4 symbols, where D1, D2, D3, and D4 are integers greater than or equal to 1. .

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 carrying an indication field, where the indication field is used to indicate a time domain resource of a target transmission corresponding to the downlink control channel and / Or the uplink and downlink resource division of the target time unit where the target transmission is located; according to the indication field, determine the time domain resource of the target transmission corresponding to the downlink control channel; and transmit data on the time domain resource.

The indication field is only used to indicate the time domain resource of the target transmission corresponding to the downlink control channel. The step of determining the time domain resource of the target transmission corresponding to the downlink control channel according to the indication field includes: The time domain resource indicated by the indication domain is used as the time domain resource transmitted by the target corresponding to the downlink control channel.

The indication field is only used to indicate the uplink and downlink resource division of the target time unit where the target transmission is located; The step of determining a time domain resource of a target transmission corresponding to the downlink control channel according to the indication field includes: determining an uplink resource and / or a downlink resource of a target time unit where the target transmission is located according to the indication field; The uplink resource or all or part of the downlink resources is used as the time domain resource for the target transmission; or all or part of the uplink resource or the downlink resource is pre-approved or configured for transmitting data. Time domain resources of the transmission.

The indication field is used to indicate the time domain resources of the target transmission corresponding to the downlink control channel and the uplink and downlink resource division of the target time unit in which the target transmission is located. According to the indication field, determine the corresponding of the downlink control channel. The step of transmitting the time domain resource of the target includes: the time domain resource indicated by the indication domain is used as the time domain resource of the target transmission corresponding to the downlink control channel; or, according to the indication domain, determining the destination transmission location The uplink resource and / or downlink resource of the target time unit, using the uplink resource or all or part of the downlink resource as the time domain resource for the target transmission; All or part of the resources for transmitting data are used as the time domain resources for the target transmission; or, the time domain of the target transmission is determined according to the time domain resources indicated by the indication domain and the uplink and downlink resource division of the target time unit. Resources.

The step of determining the time domain resource of the target transmission according to the time domain resource indicated by the indication domain and the uplink and downlink resource division of the target time unit includes: All or part of time domain resources, And the maximum, minimum, intersection, or union of the time domain resources indicated by the indication domain as the time domain resources for the target transmission; or, the uplink resources or the downlink resources are pre-approved or configured for transmission All or part of the time domain resources of the data resources and the maximum, minimum, intersection or union of the time domain resources indicated by the indication domain are used as the time domain resources transmitted by the target; or, if the indication domain The indicated time domain resource does not exceed the size of the uplink resource or the downlink resource determined according to the indicated field, or does not exceed the area of the uplink resource or the downlink resource determined or configured in advance for the data transmission determined according to the indicated field. Size, 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 size of the uplink resource or the downlink resource determined according to the indication domain , Then use the uplink resource or 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 for the target transmission. Or the maximum, minimum, intersection or union of the uplink resource or the downlink resource and the time domain resource indicated by the indication domain as the time domain resource transmitted by the target; or, if the indication domain indicates If the time domain resources of the uplink resource or the downlink resource determined in accordance with the indication domain are pre-approved or configured for data transmission, the uplink resources or the downlink resources are pre-approved or configured for The data transmission area 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-approved or configured for The maximum, minimum, intersection, or union of the time domain resource indicated by the area where the data is transmitted and the time domain resource indicated by the indication domain is used as the time domain resource for the target transmission.

The target transmission corresponding to the downlink control channel specifically includes: If the format of the DCI used by the downlink control channel is the 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 DCI used by the downlink control channel is 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 format of the DCI used by the downlink control channel is the downlink DCI format, the 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 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 time domain resource indicated by the indication field includes one or more of the following information: the number of symbols, the position of the symbols, the number of mini-slots, the position of mini-slots, the number of time slots, the position of time slots, and The number of frames and the position of the sub-frame; where the mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

The uplink and downlink resource division of the target time unit where the target transmission indicated by the indication field specifically includes: Resource information of downlink resources in the target time unit where the target transmission is located; or resource information of uplink resources in the target time unit where the target transmission is located; or resource information and uplink of downlink resources in the target time unit where the target transmission is located At least two of a resource message of a resource and a resource message of a guard interval GP, wherein the resource message includes a resource size and / or a position; or 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 target time unit is a unit that is defined or configured in advance and includes D1 subframes, D2 time slots, D3 mini-slots, or D4 symbols, where D1, D2, D3, and D4 are integers greater than or equal to 1. .

An embodiment of the present invention further provides a terminal, including: a transceiver, a processor, and a memory for storing a program used by the processor when performing an operation; wherein: the transceiver is configured to receive an indicator field The downlink control channel, the indication field is used to indicate the time domain resources of the target transmission corresponding to the downlink control channel and / or the uplink and downlink resource division of the target time unit where the target transmission is located; the processor is configured to To determine the time domain resource of the target transmission corresponding to the downlink control channel; and transmit data on the time domain resource.

Wherein, the indication domain is only used to indicate a time domain resource of a target transmission corresponding to the downlink control channel; the processor is specifically configured to: use the time domain resource indicated by the indication domain as a target of the downlink control channel Time domain resources of the transmission.

The indication field is only used to indicate the uplink and downlink resource division of the target time unit where the target transmission is located; and the processor is specifically configured to determine the uplink resource and / or downlink of the target time unit where the target transmission is located according to the indication field. Resources; use the uplink resource or all or part of the downlink resource as the time domain resource for the target transmission; or use all or part of the uplink resource or the downlink resource that is previously agreed or configured for data transmission The resource is used as the time domain resource for this target transmission.

The indication field is used to indicate the time domain resources of the target transmission corresponding to the downlink control channel and the uplink and downlink resource division of the target time unit where the target transmission is located; the processor is specifically configured to: The time domain resource is used as the time domain resource of the target transmission corresponding to the downlink control channel; or, according to the indication domain, the uplink resource and / or the downlink resource of the target time unit where the target transmission is located is determined, and the uplink resource or the All or part of the downlink resources is used as the time domain resource for the target transmission; or all or part of the uplink or downlink resources that are pre-appointed or configured for data transmission are used as the time domain for the target transmission Resources; or, The time domain resources of the target transmission are determined according to the time domain resources indicated by the indication domain and the uplink and downlink resource division of the target time unit.

The processor is specifically configured to: use the maximum, minimum, intersection, or union of all or part of the time domain resources in the uplink resources or the downlink resources determined according to the indication domain with the time domain resources indicated by the indication domain. Set, as the time domain resource for the target transmission; or, all or part of the time domain resources in the uplink resource or the downlink resource that are pre-approved or configured for data transmission, and the time indicated by the indication domain The maximum, minimum, intersection, or union of the domain resources is used as the time domain resource transmitted by the target; or, 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 indication domain , Or does not exceed the size of the uplink resource or the downlink resource area previously agreed or configured in the downlink resource determined according to the indication domain, then the time domain resource indicated by the indication domain is used as the time domain for the target transmission 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 indication domain, the uplink resource 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, minimum, intersection, or union of the resources 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 downlink resource determined in advance according to the indication domain, The size of the agreed or configured area for transmitting data, then use the uplink resource or the area previously reserved or configured for transmitting data in the downlink resource as the time domain resource for the target transmission, or indicate by the indication domain Time domain resource as the time domain transmitted by this target Or the maximum, minimum, intersection, or union of the uplink resources or the downlink resources that are pre-agreed or configured in the area for transmitting data and the time domain resources indicated by the indication domain are transmitted as the target. Time domain resources.

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 time domain resource indicated by the indication field includes one or more of the following information: number of symbols, position of symbols, number of mini-slots, position of mini-slot numbers, number of time slots, Slot position, number of sub-frames, position of sub-frames; where the mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

The uplink and downlink resource division of the target time unit where the target transmission is indicated by the indication field specifically includes: resource information of downlink resources in the target time unit where the target transmission is located; or, the target time unit where the target transmission is located 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 where the target transmission is located, where the resource information includes the resource size And / or location; or, 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 target time unit is a unit that is defined or configured in advance and includes D1 subframes, D2 time slots, D3 mini-slots, or D4 symbols, where D1, D2, D3, and D4 are integers greater than or equal to 1. .

An embodiment of the present invention further provides a base station, including: a transceiver, a processor, and a memory for storing a program used by the processor when performing an operation; wherein: the transceiver is configured to send and carry an instruction Downlink control channel of the domain Showing the time domain resources of the target transmission corresponding to the downlink control channel and / or the uplink and downlink resource division of the target time unit where the target transmission is located; the processor is configured to determine the target corresponding to the downlink control channel according to the indication domain Time-domain resource transmitted; data is transmitted on this time-domain resource.

Wherein, the indication domain is only used to indicate a time domain resource of a target transmission corresponding to the downlink control channel; the processor is specifically configured to: use the time domain resource indicated by the indication domain as a target of the downlink control channel Time domain resources of the transmission.

The indication field is only used to indicate the uplink and downlink resource division of the target time unit where the target transmission is located; and the processor is specifically configured to determine the uplink resource and / or downlink of the target time unit where the target transmission is located according to the indication field. Resources; use the uplink resource or all or part of the downlink resource as the time domain resource for the target transmission; or use all or part of the uplink resource or the downlink resource that is previously agreed or configured for data transmission The resource is used as the time domain resource for this target transmission.

The indication field is used to indicate the time domain resources of the target transmission corresponding to the downlink control channel and the uplink and downlink resource division of the target time unit where the target transmission is located; the processor is specifically configured to: Time domain resources, as time domain resources of target transmission corresponding to the downlink control channel; or, Determining the uplink resource and / or the downlink resource of the target time unit where the target transmission is located according to the indication field, and using the uplink resource or all or part of the downlink resources as the time domain resource of the target transmission; or the uplink All or a part of the resources or downlink resources that are pre-agreed or configured for transmitting data are used as the time domain resources transmitted by the target; or, based on the time domain resources indicated by the indication domain and the target time unit up and down Line resource division to determine the time domain resources of the target transmission.

The processor is specifically configured to: use the maximum, minimum, intersection, or union of all or part of the time domain resources in the uplink resources or the downlink resources determined according to the indication domain with the time domain resources indicated by the indication domain. Set, as the time domain resource for the target transmission; or, all or part of the time domain resources in the uplink resource or the downlink resource that are pre-approved or configured for data transmission, and the time indicated by the indication domain The maximum, minimum, intersection, or union of the domain resources is used as the time domain resource transmitted by the target; or, 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 indication domain , Or does not exceed the size of the uplink resource or the downlink resource area previously agreed or configured in the downlink resource determined according to the indication domain, then the time domain resource indicated by the indication domain is used as the time domain for the target transmission 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 indication domain, the uplink resource 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, minimum, intersection, or union of the resources as the time domain resource transmitted by the target; or, 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 indication domain, 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, minimum, intersection, or union of the agreed or configured area for transmitting data and the time domain resource indicated by the indication domain is used as the time domain resource for the target transmission.

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 according to The indication field in the downlink control channel is determined.

The time domain resource indicated by the indication field includes one or more of the following information: the number of symbols, the position of the symbols, the number of mini-slots, the position of mini-slots, the number of time slots, the position of time slots, and The number of frames and the position of the sub-frame; where the mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

The uplink and downlink resource division of the target time unit where the target transmission is indicated by the indication field specifically includes: resource information of downlink resources in the target time unit where the target transmission is located; or, the target time unit where the target transmission is located 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 where the target transmission is located, where the resource information includes the resource size And / or location; or, 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 target time unit is a unit that is defined or configured in advance and includes D1 subframes, D2 time slots, D3 mini-slots, or D4 symbols, where D1, D2, D3, D4 is an integer greater than or equal to 1.

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 carrying an indication field, where the indication field is used to indicate a time domain resource and / or a target transmission corresponding to the downlink control channel; The uplink and downlink resources of the target time unit where the target transmission is located; the time domain resources of the target transmission corresponding to the downlink control channel are determined according to the indication domain; the data is transmitted on the time domain resources to realize the variable slot structure The purpose of transmission is to solve the problem of how to perform transmission in a variable time slot structure that is not given in the related art.

101-103, 201-203‧‧‧ steps

601‧‧‧Receiving module

602‧‧‧First Confirmation Module

6021‧‧‧First Confirmation Submodule

6022‧‧‧Second determination submodule

6023‧‧‧The third determination submodule

6024‧‧‧Fourth Confirmation Submodule

6025‧‧‧Fifth determined submodule

6026‧‧‧Sixth determination submodule

60261‧‧‧First determination unit

60262‧‧‧Second determination unit

60263‧‧‧The third determination unit

60264‧‧‧Fourth determination unit

60265‧‧‧Fifth determination unit

603‧‧‧The first transmission module

801‧‧‧ sending module

802‧‧‧Second Confirmation Module

8021‧‧‧Seventh determined submodule

8022‧‧‧ Eighth Confirmation Submodule

8023‧‧‧ Ninth Confirmation Submodule

8024‧‧‧Tenth confirmed submodule

8025‧‧‧ Eleventh determined submodule

8026‧‧‧The twelfth determined submodule

80261‧‧‧Sixth determination unit

80262‧‧‧Seventh determination unit

80263‧‧‧Eighth determination unit

80264‧‧‧The ninth determination unit

80265‧‧‧Tenth determination unit

803‧‧‧Second Transmission Module

700, 900‧‧‧ processors

710, 910‧‧‧ Transceiver

720, 920‧‧‧Memory

730‧‧‧user interface

1 is a first working flowchart of a data transmission method according to an embodiment of the present invention; FIG. 2 is a second working flowchart of a data transmission method according to an embodiment of the present invention; and FIG. 3 is a first transmission of a data transmitting method according to an embodiment of the present invention 4 is a schematic diagram of a second transmission of a data transmission method according to an embodiment of the present invention; FIG. 5 is a schematic diagram of a third transmission of a data transmission method according to an embodiment of the present invention; and FIG. 6 is a first structural block diagram of a terminal according to an embodiment of the present invention; FIG. 7 is a second structural block diagram of a terminal according to an embodiment of the present invention; FIG. 8 is a first structural block diagram of a base station according to an embodiment of the present invention; and FIG. 9 is a second structural block diagram of a base station according to an embodiment of the present invention.

In order to make the technical problems, technical solutions and advantages of the present invention clearer, The detailed description will be described below with reference to specific embodiments and drawings.

The data transmission method according to the embodiment of the present invention determines the location of the downlink control channel according to the indication domain used to indicate the time domain resources of the target transmission corresponding to the downlink control channel and / or the indicator domain division of the target time unit where the target transmission is located. The corresponding target transmits time-domain resources, thereby achieving the purpose of transmitting data on the determined time-domain resources.

First embodiment

As shown in FIG. 1, an embodiment of the present invention provides a data transmission method applied to a terminal, including: Step 101: Receive a downlink control channel carrying an indication field, where the indication field is used to indicate a corresponding downlink control channel. Time domain resources of the target transmission and / or uplink and downlink resource division of the target time unit where the target transmission is located.

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).

Here, the time domain resources of the target transmission corresponding to the downlink control channel are acquired by receiving the downlink control channel carrying the indication domain.

Step 102: Determine a time domain resource of a target transmission corresponding to the downlink control channel according to the indication domain.

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 downlink control channel The target transmission corresponding to the 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 The downlink 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 The corresponding ACK / NACK feedback 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 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, the time domain resource indicated by the indication field includes one or more of the following information: number of symbols, position of symbols, number of mini-slots, number of mini-slot positions, number of time slots, position of time slots, Frame number, sub frame position.

The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

Further, the uplink and downlink resource division of the target time unit where the target transmission indicated by the indication field specifically includes: resource information of downlink resources in the target time unit where the target transmission is located; or, the target time where the target transmission is located Resource information of the uplink resource in the unit; or, the target transmission station 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, wherein the resource information includes the resource size and / or location; or The structure type of the corresponding target time unit.

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

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

Further, the above-mentioned target time unit is a unit that is defined or configured in advance and includes D1 subframes, D2 time slots, D3 mini-slots, or D4 symbols, where D1, D2, D3, and D4 are greater than or equal to 1. Integer.

In a specific embodiment of the present invention, when the downlink control channel is a downlink control channel using an uplink DCI format: the transmission corresponding to the downlink control channel is: an uplink shared channel transmission scheduled by the uplink control channel, and the uplink control Channel The scheduled uplink shared channel is transmitted in the current time unit or the A1 time unit after the current time unit or the continuous A2 time unit starting from the current time unit or the continuous A3 time unit after the current time unit, A1, A2 , A3 is an integer value greater than or equal to 1, A1, A2, A3 are pre-approved or configured, or A1, A2, A3 are in the downlink control channel using the uplink DCI format according to this As determined by the indication field, the current time unit is the time unit in which the downlink control channel is transmitted.

When the downlink control channel is a downlink control channel using a downlink DCI format: the transmission corresponding to the downlink control channel is: ACK / NACK feedback transmission corresponding to the downlink shared channel scheduled by the downlink control channel or the downlink control channel itself ACK / NACK feedback transmission, the ACK / NACK feedback is in 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 Transmission, B1, B2, B3 are integer values greater than or equal to 1, B1, B2, B3 are pre-approved or configured, or B1, B2, B3 are determined according to the indicated domain in the downlink control channel using the downlink DCI format , The current time unit is the time unit where the downlink control channel is transmitted; or, the corresponding transmission of the downlink control channel is: the downlink shared channel transmission scheduled by the downlink control channel, and the downlink shared channel is at the current time unit or C1 time unit after the current time unit or consecutive C2 time units starting from the current time unit or Transmission in consecutive C3 time units after the previous time unit, C1, C2, C3 are integer values greater than or equal to 1, C1, C2, C3 are pre-approved or configured, or C1, C2, C3 are downlink based on this use In the downlink control channel of the DCI format, the indication field is determined, and the current time unit is the time unit in which the downlink control channel is transmitted.

The above time unit is defined as D1 sub-frames, or D2 slots, or D3 mini-slots, or D4 symbols, where D1, D2, D3, and D4 are integers greater than or equal to 1.

The symbols in the embodiments of the present invention 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 above indication domain is only used to indicate the time domain resource of the target transmission corresponding to the downlink control channel; the above step 102 specifically includes: using the time domain resource indicated by the indication domain as the corresponding downlink control channel Time domain resource for the target transmission.

The indication domain here is used to indicate the time domain resources of the target transmission corresponding to the downlink control channel. The time domain resources are specifically represented by the number of symbols, the position of the symbols, the number of slots, the position of the slots, and the number of mini-slots. , Mini-slot position, number of sub-frames, one or more combinations of sub-frame positions.

When the indication domain only indicates the time domain resource of the transmission corresponding to the downlink control channel, it is determined that the time domain resource of the transmission corresponding to the downlink control channel is the time domain resource indicated by the indication domain; that is, according to the indication domain at this time The indicated sub-frames or time slots or min-slots or symbol positions / numbers are transmitted regardless of the uplink and downlink resource division in the time unit in which the transmission is located.

That is, when the downlink control channel is used to schedule an uplink shared channel transmission, the uplink shared channel follows the instruction in the time unit (which may include multiple time units) of its transmission. Transmission of the sub-frame or time slot or min-slot or symbol position / number indicated by the domain; when the downlink control channel is used to schedule transmission of the downlink shared channel, the downlink shared channel is transmitted in a time unit (which may include multiple Time units) in accordance with the sub-frame or time slot or min-slot or symbol position / number indicated by the indication field; when the downlink shared channel scheduled by the downlink control channel or the downlink control channel itself needs to be transmitted When an ACK / NACK feedback message is sent, the ACK / NACK feedback message is transmitted in the time unit (which may include multiple time units) according to the sub-frame or time slot or min-slot or symbol position / number indicated by the indication field. Number for transmission.

Further, when the indication field is only used to indicate the uplink and downlink resource division of the target time unit where the target transmission is located; the above step 102 specifically includes: determining the uplink resource of the target time unit where the target transmission is located and / Or downlink resources; using the uplink resources or all or part of the downlink resources as time-domain resources for the target transmission; or all of the uplink resources or downlink resources that are previously agreed or configured for data transmission Or some resources are used as time domain resources for this target transmission.

If the downlink control channel uses the uplink DCI format, at this time, only the uplink resources in the target time unit, or both the uplink and downlink resources in the target time unit can be determined according to the instruction message; if the downlink control channel uses the 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, or both the uplink and downlink resources in the target time unit can be determined according to the instruction message; if the downlink control The channel uses 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, according to the instruction message, only Determine uplink resources in the target time unit, or determine both uplink and downlink resources in the target time unit.

The uplink and downlink resource division here is specifically: at least two of the number of symbols occupied by downlink resources in the time unit, the number of symbols occupied by uplink resources, and the number of symbols occupied by the GP; or the uplink and downlink resource division is specifically: The structure type of the time unit, which includes one or more of the following structure types: all uplink (that is, all symbols in the time unit are uplink), all downlink (that is, all symbols in the time unit are downlink) ), A structure type that includes both uplink and downlink (that is, some symbols in this time unit are uplink, some symbols are downlink, and the remaining symbols are GP); the structure type that includes both uplink and downlink can be further divided into uplink-based (Ie, most symbols in the time unit are uplink) or downlink-dominated (ie, most symbols in the time unit are downlink).

For example, it 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 them, multiple structure types including both uplink and downlink can be defined or configured in advance, and each structure type corresponds to a different uplink and downlink allocation ratio (that is, contains different numbers of uplink and downlink symbols), or includes both uplink and downlink. The type of the structure can dynamically adjust the uplink and downlink allocation ratio (for example, dynamically determine the GP size according to neighboring cell interference, TA demand, etc., so as to dynamically adjust the size of the uplink area and / or the downlink area).

For another example, indicate that the time unit is one of a plurality of pre-defined or configured structure types including both uplink and downlink; wherein the pre-defined or configured plurality of structure types including both uplink and downlink are each structure The type corresponds to different uplink and downlink allocation ratios (that is, contains different numbers of uplink and downlink symbols).

For another example, indicating that the time unit is one of a full uplink or a full downlink or an uplink master or a downlink master structure type; among which, multiple uplink masters and / Or downlink-based structure types, each structure type corresponds to a different uplink and downlink allocation ratio (that is, contains different numbers of uplink and downlink symbols).

When the indication field indicates only the uplink and downlink resource division of the time unit corresponding to the transmission of the downlink control channel, it is determined that the time domain resource of the transmission corresponding to the downlink control channel is in the uplink and downlink resource division indicated by the indication field All or part of the resources in the corresponding resource area of.

That is, when the downlink control channel is used for scheduling uplink shared channel transmission, the uplink shared channel determines the uplink determined by the uplink and downlink resource division indicated by the indication field in the time unit (which may include multiple time units) of its transmission. The entire size of the area or some time domain resources that are pre-approved or configured; when the downlink control channel is used to schedule a downlink shared channel transmission, the downlink shared channel is in a time unit (which may include multiple time units) for transmission According to the uplink and downlink resource division indicated by the indication domain, the entire area for transmitting data in the downlink area determined or the time domain resources pre-approved or configured for transmission are transmitted; when the downlink shared channel scheduled by the downlink control channel or When the downlink control channel itself needs to transmit an ACK / NACK feedback message, the ACK / NACK feedback message determines the uplink determined by the uplink and downlink resource division indicated by the indication field in the time unit (which may include multiple time units) in which it is transmitted. The entire size of the area or some time-domain resources that are pre-appointed or configured are transmitted.

Further, when the above indication field is used to indicate time domain resources of the target transmission corresponding to the downlink control channel and uplink and downlink resource division of the target time unit where the target transmission is located.

The above step 102 specifically includes: using the time domain resource indicated by the indication domain as the time domain resource transmitted by the target corresponding to the downlink control channel; or, Determining the uplink resource and / or the downlink resource of the target time unit where the target transmission is located according to the indication field, and using the uplink resource or all or part of the downlink resources as the time domain resource of the target transmission; or the uplink All or a part of the resources or downlink resources that are pre-agreed or configured for transmitting data are used as the time domain resources transmitted by the target; or, based on the time domain resources indicated by the indication domain and the target time unit up and down Line resource division to determine the time domain resources of the target transmission.

Further, the step of determining the time domain resource of the target transmission according to the time domain resource indicated by the indication domain and the uplink and downlink resource division of the target time unit includes: including the uplink resource or the downlink resource determined according to the indication domain. All or part of the time domain resources, the maximum value, the minimum value, the intersection or the union of 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 All or part of the time domain resources that are pre-approved or configured for transmitting data, and the maximum, minimum, intersection, or union of the time domain resources indicated by the indication domain are used as the time domain resources for the target transmission ; Or, if the time domain resource indicated by the indication domain does not exceed the size of the uplink or downlink resource determined according to the indication domain, or does not exceed the uplink resource or the downlink resource determined or pre-arranged in the indication domain The size of the area for transmitting data, the time domain resource indicated by the indication domain is used as the time domain resource for the target transmission; or, if the The time domain resource indicated by the domain exceeds the size of the uplink resource or the downlink resource determined according to the indication domain, then the uplink resource or the downlink resource is used as the time domain resource for the target transmission, or the The time domain resource is used as the time domain resource of the target transmission, or the maximum value of the uplink resource or the downlink resource and the time domain resource indicated by the indication domain, The minimum value, intersection, or union 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 in advance according to the indication domain, 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 The time domain resource of the target transmission, or the maximum, minimum, intersection, or union 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 The time domain resource transmitted as the target.

In a specific embodiment of the present invention, when the indication field indicates both the time domain resource of the transmission corresponding to the downlink control channel and the uplink and downlink resource division of the time unit where the transmission corresponding to the downlink control channel is located, only according to the One kind of indication content determines the time domain resource, or two kinds of indication content simultaneously determine the time domain resource.

For example, it is determined that the time domain resource of the transmission corresponding to the downlink control channel is the time domain resource indicated by the indication domain, and the details are the same as above.

Alternatively, it is determined that the time domain resource corresponding to the downlink control channel is all or part of the resources in the corresponding resource area in the uplink and downlink resource division indicated by the indication domain, and the details are the same as above.

Alternatively, it is determined that the time domain resource corresponding to the downlink control channel is the largest one of the time domain resources indicated by the indication domain and the time domain resources in the corresponding resource region in the uplink and downlink resource division indicated by the indication domain. The minimum value.

That is, when the downlink control channel is used to schedule an uplink shared channel transmission, the uplink shared channel follows the instruction in the time unit (which may include multiple time units) of its transmission. The maximum or minimum or union or intersection of the time domain resources indicated by the specific time domain resources indicated by the domain and the uplink region determined by the uplink and downlink resource planning indicated by the indication domain; when the downlink control channel is used for scheduling When the downlink shared channel is transmitted, the downlink shared channel determines the downlink in the transmission time unit (which may include multiple time units) according to the specific time domain resources indicated by the indication domain and the uplink and downlink resource division indicated by the indication domain. The maximum or minimum or union or intersection of the time domain resources used to transmit data in the area is transmitted; when the downlink shared channel scheduled by the downlink control channel or the downlink control channel itself needs to transmit ACK / NACK feedback messages, The ACK / NACK feedback message in the time unit (which may include multiple time units) is transmitted in accordance with the specific time domain resources indicated by the indication field and the uplink and downlink resources indicated by the indication field. The time domain resource or the pre-agreed part of the time domain resource is transmitted to the maximum or minimum value or union or intersection.

Step 103: transmitting data on the time domain resource.

Specifically, when the downlink control channel is a downlink control channel using an uplink DCI format, the terminal transmits an uplink shared channel scheduled by the downlink control channel on the time domain resource; when the downlink control channel is a downlink DCI format When the downlink control channel is used, the terminal transmits the downlink shared channel scheduled by the downlink control channel on the time domain resource; or when the downlink control channel is a downlink control channel using the downlink DCI format, the terminal uses the time domain resource. The ACK / NACK feedback message corresponding to the downlink shared channel scheduled by the downlink control channel or the ACK / NACK feedback message corresponding to the downlink control channel is transmitted upward.

In addition, in the above process, the terminal may also detect the instruction message in each or a specific time unit (for example, in a pre-configured or agreed time unit for sending the instruction message), The indication message is used to indicate uplink and downlink resource allocation in one or more time units.

If the uplink and downlink resource division indicated by the indication message detected by the terminal is not consistent with the indication content of the indication field in the downlink control channel, the indication content of the indication field in the downlink control channel shall prevail.

When the indication domain in the downlink control channel indicates a time domain resource, when the time domain resource 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 spans two time units To determine that the second time unit is full uplink.

When the terminal determines that the target time unit is full uplink according to the indication field (for example, the time domain resource occupies a time unit or is determined to be full uplink according to the uplink and downlink resource division), the terminal may not detect the target time unit for An instruction message indicating the uplink and downlink resource division in the time unit, thereby achieving the purpose of power saving.

It should be noted that if there is an indication domain in the downlink control channel that can indicate the time domain resource of the uplink shared channel, the time domain resource indicated by the indication domain in the downlink control channel can be less than, equal to, or greater than that according to the instruction. The message determines the size of the uplink area; when it is larger than the size of the uplink area determined according to the instruction message, it can always be transmitted according to the size of the uplink area, or always as indicated by the indication field in the downlink control channel. Domain resource transmission, or take the size of the uplink area and the maximum or minimum value of the time domain resource indicated by the indication domain in the downlink control channel.

The data transmission method in the embodiment of the present invention receives a downlink control channel carrying an indication field, where the indication field is used to indicate a time domain resource of a target transmission corresponding to the downlink control channel and / or a target time unit where the target transmission is located. Line resource division; determine the time domain resource of the target transmission corresponding to the downlink control channel according to the indication domain; transmit the resource on the time domain resource It is expected that the purpose of transmission in a variable time slot structure is achieved, and then the problem of how to perform transmission in a variable time slot structure which is not given in the related art is solved.

Second embodiment

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

Step 201: Send a downlink control channel carrying an indication domain, where the indication domain is used to indicate time domain resources of a target transmission corresponding to the downlink control channel and / or uplink and downlink resource division of a target time unit where the target transmission is located.

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).

Step 202: Determine the time domain resource of the target transmission corresponding to the downlink control channel according to the indication domain.

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

Step 203: Transmit data on 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.

The data transmission method in the embodiment of the present invention sends a downlink control channel carrying an indication domain, where the indication domain is used to indicate a time domain resource of a target transmission corresponding to the downlink control channel. And / or the uplink and downlink resource division of the target time unit where the target transmission is located; according to the indication field, determine the time domain resource of the target transmission corresponding to the downlink control channel; and transmit data on the time domain resource to achieve variable The purpose of transmission in the time slot structure further solves the problem that how to perform transmission in a variable time slot structure is not given in the related art.

Third embodiment

This embodiment is a specific application example of the data transmission method of the present invention.

The embodiment of the present invention uses a slot as a time unit as an example. Assume that a slot contains 7 symbols (orthogonal frequency division multiplexed OFDM or single-carrier frequency division multiple access SC-FDMA symbols); of course, other time units are not excluded. Definition.

The specific implementation process of the data transmission method in the embodiment of the present invention is as follows.

It is assumed that the UL grant sent in the downlink area of the current time unit can schedule PUSCH transmission in the uplink area of the current time unit (that is, the uplink processing delay of the terminal is sufficient, of course, this scheduling relationship may not be predetermined, and it may be a UL grant). (For example, the PUSCH is directly notified to be transmitted in the current or later or later time units), and the UL grant includes an indication domain for indicating the time domain resources of the scheduled PUSCH.

Base station side:

As shown in FIG. 3, the base station sends a UL grant in a time unit for scheduling a corresponding terminal to transmit a PUSCH on the time domain resource indicated by the indication field of the UL grant in the time unit; for example, in time unit i Send UL grant1, where the indication field indicates that PUSCH1 is transmitted on the 6th and 7th symbols (that is, both the position of the symbol and the length of the symbol are notified), or that PUSCH1 is transmitted on 2 symbols (at this time, it can be preset to be a time unit The end position of the two symbols forward, that is, the last 2 symbols in the time unit, so that the position of the symbol can be notified without the notification of the length of the symbol. Degrees), of course, there can be other indication methods, such as including slot number / number, min-slot number / number, etc., and can also indicate whether to transmit across adjacent time slots; of course, the time domain indicated by UL grant The resource size may also be smaller than the size of the uplink area configured or defined in the time unit in advance, for example, as shown in PUSCH2 scheduled by UL grant2 in time unit i + 1.

It should be noted that the base station may pre-divide the downlink region and the uplink region of a time unit according to a priori information such as scheduling requirements, and the PUSCH time domain resources indicated by the base station sending the UL domain in the UL grant need to be included in the uplink region. ; Of course, the base station may not be divided in advance, but according to the actual scheduling needs, the UL grant can flexibly indicate in which time domain position the PUSCH is transmitted, thereby flexibly adjusting the size of the uplink area.

The PUSCH sent by the terminal is received on the time domain resources indicated by the indication field in the UL grant according to the scheduling information (such as frequency domain resources, MCS, etc.) in the UL grant.

Terminal side:

The terminal detects the UL grant in each time unit. When receiving the UL grant, the terminal determines the time domain resources of the scheduled PUSCH according to the indication field in the UL grant (the specific method is the same as above), and then according to the scheduling information in the UL grant (such as Frequency domain resources, MCS level, etc.), and the PUSCH is transmitted on corresponding time domain resources in the time unit.

Fourth embodiment

This embodiment is another specific application example of the data transmission method of the present invention.

The embodiment of the present invention uses a slot as a time unit as an example. Assume that a slot contains 7 symbols (orthogonal frequency division multiplexed OFDM or single-carrier frequency division multiple access SC-FDMA symbols); of course, other time units are not excluded. Definition.

The specific implementation process of the data transmission method in the embodiment of the present invention is as follows.

It is assumed that the UL grant sent in the downlink area in the current time unit can be scheduled for PUSCH transmission in the uplink area of the subsequent time unit (of course, this scheduling relationship may not be pre-agreed, and it may be notified in the UL grant, for example, the PUSCH is notified directly It is transmitted in the current time or the next time unit or later), the UL grant includes an indication domain, which is used to indicate the time domain resources of the scheduled PUSCH.

Base station side:

As shown in FIG. 4, the base station sends a UL grant in one time unit, which is used to schedule the time domain resources indicated by the indication domain in the UL grant of the corresponding terminal in the next time unit or multiple time units starting from the next time unit. PUSCH is transmitted; for example, UL grant1 is sent in time unit i, where the indication field indicates that PUSCH1 is transmitted on the 6th and 7th symbols in the next time unit (that is, both the position of the symbol and the length of the symbol), or 2 PUSCH1 is transmitted on each symbol (at this time, it can be preset to be the two symbols forward from the end position of the time unit, that is, the last 2 symbols in the time unit, so that only the symbol length can be notified without the position of the symbol), of course There may be other indication methods, such as including slot number / number, min-slot number / number, etc., and it may also indicate whether to transmit across adjacent time slots, etc .; the base station may also send UL grant2 in time unit i, Schedule PUSCH2 to start at the sixth symbol in time unit i + 1 and transmit 9 consecutive symbols. At this time, the terminal can directly determine that time unit i + 2 is full uplink. Among them, UL grant2 The indication field of PUSCH2 can directly instruct PUSCH2 to start from the sixth symbol in time unit i + 1 and has a length of 9 symbols. Then, PUSCH2 is transmitted across time units i + 1 and i + 2, and the indication field in UL grant2 can only be Inform PUSCH2 to transmit across two time units, then it is preset that PUSCH2 occupies all uplink symbol transmissions in time unit i + 1 and time unit i + 2; the base station can also send UL grant3 in time unit i + 1 and schedule in time Unit i + 2 starts with the first symbol Input PUSCH3, at this time, the terminal can directly judge time unit i + 2 as full uplink, and the indication field in UL grant3 can directly notify PUSCH3 to start with the first symbol in time unit i + 2, and it will preset to occupy one time unit for transmission The indication field in UL grant3 can also inform PUSCH3 to occupy 7 symbol transmissions, and it is preset to occupy a time unit, that is, the transmission starts from the first symbol and ends at the end of the last symbol. Of course, PUSCH1 can also be scheduled to occupy some symbols in the uplink area in time unit i + 1 (for example, only the last symbol is occupied), and PUSCH2 can also be scheduled to occupy some symbols in the uplink area in time unit i + 1. (For example, starting from the last symbol in the time unit) and / or occupying part of the symbol transmission in time unit i + 2, PUSCH3 may also be scheduled to occupy only part of the symbol transmission in time unit i + 2.

It should be noted that the base station may pre-divide the downlink region and the uplink region of a time unit according to a priori information such as scheduling requirements, and the PUSCH time domain resources indicated by the base station sending the UL domain in the UL grant need to be included in the uplink region. ; Of course, the base station may not be divided in advance, but according to the actual scheduling needs, the UL grant can flexibly indicate in which time domain position the PUSCH is transmitted, thereby flexibly adjusting the size of the uplink area.

The PUSCH sent by the terminal is received on the time domain resources indicated by the indication field in the UL grant according to the scheduling information (such as frequency domain resources, MCS, etc.) in the UL grant.

Terminal side:

As shown in FIG. 4, the UL grant is detected in each time unit. When a UL grant is received, the time domain resource of the scheduled PUSCH is determined according to the indication field in the UL grant (the specific method is the same as above), and then according to the UL grant, Scheduling information (such as frequency domain resources, MCS level, etc.), and PUSCH is transmitted on corresponding time domain resources in the time unit.

Fifth Embodiment

This embodiment is another specific application example of the data transmission method of the present invention.

The embodiment of the present invention uses a slot as a time unit as an example. Assume that a slot contains 7 symbols (orthogonal frequency division multiplexed OFDM or single-carrier frequency division multiple access SC-FDMA symbols); of course, other time units are not excluded. Definition.

The specific implementation process of the data transmission method in the embodiment of the present invention is as follows.

It is assumed that the UL grant sent in the downlink area in the current time unit can schedule PUSCH transmission in the uplink area of the current or later time unit (it may be that different terminals maintain different scheduling relationships, of course, this scheduling relationship may not be pre-agreed, It can be notified in the UL grant, for example, the PUSCH is directly notified to be transmitted in the current or the next or later time units. The UL grant contains an indication field to indicate the uplink and downlink of the time unit where the scheduled PUSCH transmission is located. Division of resources.

Base station side:

As shown in Figure 5, the base station sends a UL grant in one time unit, which is used to schedule the corresponding terminal to transmit PUSCH in the next time unit or multiple time units starting from the next time unit, and the PUSCH transmission time domain resources are based on Determine the uplink and downlink resource division of the time unit indicated by the indication field in the UL grant; for example, send UL grant1 in time unit i to schedule the terminal to transmit PUSCH1 in time unit i + 1, where the indication field indicates The uplink and downlink resource division of the next time unit i + 1 can directly indicate at least 2 messages in the number of symbols in the downlink area, the number of symbols in the uplink area, and the number of GP symbols, and it can also indicate the structure type of the predetermined time unit, such as Predetermined full uplink structure, downlink 4 symbols + uplink 2 symbols structure (1 symbol GP), downlink 2 symbols + uplink 4 symbols structure (1 symbol GP), etc., according to the indication information of the indication field, the upper and lower positions of the time unit i + 1 are determined The line is divided into 6 symbols in the downlink + 2 symbols in the uplink, then the UL is preset The PUSCH1 scheduled by grant1 occupies all symbol transmissions in the uplink area in time unit i + 1, that is, the 6th and 7th symbols (that is, the last 2 symbols) in time unit i + 1 are used for transmission; the base station may transmit in time unit i A UL grant2 is sent in +1, which is used to schedule the terminal to transmit PUSCH2 in time unit i + 2, where the indication field indicates the uplink and downlink resource division of the next time unit i + 2, in a similar manner to the indication in UL grant1, according to UL The indication field in grant2 determines that time unit i + 2 is full uplink, and by default, PUSCH2 scheduled by the UL grant2 is transmitted on all symbols in time unit i + 2.

Further, if different terminals can maintain different scheduling relationships, for example, there is a type of terminal that performs scheduling across time units according to UL grant1 and UL grant2, and a type of terminal that can perform scheduling within a time unit according to UL grant3 That is, the base station can also send UL grant3 in time unit i + 1, schedule to start transmitting PUSCH3 in the uplink area in time unit i + 1, and determine the time according to the indication field in UL grant3 in a similar manner to that in UL grant1. Unit i + 2 is full uplink. One implementation is that the terminal always considers that PUSCH3 scheduled by UL grant3 is transmitted only in the uplink area in time unit i + 1. For example, if the uplink area is 2 symbols, PUSCH3 is always in The last two symbols in time unit i + 1 are transmitted. In another implementation manner, since the terminal can determine that the time unit i + 2 is full uplink according to the indication field in the UL grant3, all symbols in the time unit i + 1 and the time unit i + 2 of the PUSCH3 scheduled by the UL grant3 can be defaulted. Transmission, another implementation, the indication field in UL grant3 can further indicate whether PUSCH3 is transmitted across different time units in the domain or indicate the specific symbol position / number of PUSCH3 transmissions (similar to the time domain resource in Embodiment 1/2) Indication), the terminal may determine, according to the indication message, that the PUSCH3 is transmitted on only 2 symbols in the time unit i + 1, or whether it will occupy 9 symbols for transmission across the time units i + 1 and i + 2.

Of course, if the indication field in each UL grant further includes information indicating the time domain resources of the PUSCH (such as the indication message in Embodiment 1/2), the number of symbols occupied by PUSCH 1, 2, and 3 may be less than The number of symbols in the uplink area, that is, not all the symbols contained in the uplink area in one time unit.

The PUSCH sent by the terminal is received on the time domain resources determined according to the indication field in the UL grant according to the scheduling information (such as frequency domain resources, MCS, etc.) in the UL grant.

Terminal side:

As shown in FIG. 5, the UL grant is detected in each time unit. When a UL grant is received, the time domain resources of the scheduled PUSCH are determined according to the indication field in the UL grant (the specific method is the same as above), and then according to the UL grant, Scheduling information (such as frequency domain resources, MCS level, etc.), and PUSCH is transmitted on corresponding time domain resources in the time unit.

It should be noted that other scheduling relationships (ie, the correspondence between the UL grant and the time unit where the PUSCH transmission is located) or the indication relationship of the indication domain (that is, the correspondence between the indication domain and the uplink and downlink resource division of the indicated time unit) also include In the present invention, the scheduling relationship and the indication relationship of the indication field may also correspond to multiple time units; various ways of the scheduling relationship and various indication relationships of the indication message may be combined with each other.

The above embodiments only take the relationship of UL grant scheduling and the indication relationship of the indication fields included in the UL grant as examples. When the UL grant and PUSCH are replaced with DL grant and PDSCH, or when the DL grant and the corresponding ACK / NACK feedback are replaced. The working method is similar and will not be described again.

Sixth embodiment

As shown in FIG. 6, an embodiment of the present invention further provides a terminal, including:

The receiving module 601 is configured to receive a downlink control channel carrying an indication field, where the indication field is used to indicate a time domain resource of a target transmission corresponding to the downlink control channel and / or an uplink and downlink resource of a target time unit where the target transmission is located. Dividing; a first determining module 602 is configured to determine a time domain resource of a target transmission corresponding to the downlink control channel according to the indication domain; and a first transmission module 603 is configured to transmit data on the time domain resource.

In the terminal according to the embodiment of the present invention, the indication field is only used to indicate a time domain resource of a target transmission corresponding to the downlink control channel; the first determination module 602 includes: a first determination sub-module 6021, configured to indicate the indication The time domain resource indicated by the domain is used as the time domain resource of the target transmission corresponding to the downlink control channel.

In the terminal according to the embodiment of the present invention, the indication field is only used to indicate the uplink and downlink resource division of the target time unit where the target transmission is located; the first determination module 602 includes: a second determination sub-module 6022, which is configured to use the indication field To determine the uplink resource and / or the downlink resource of the target time unit where the target transmission is located; the third determining submodule 6023 is configured to use the uplink resource or all or part of the downlink resource as the time domain of the target transmission Or all or part of the uplink resources or downlink resources that are pre-approved or configured for data transmission as the time domain resources for the target transmission.

In the terminal according to the embodiment of the present invention, the indication field is used to indicate a time domain resource of a target transmission corresponding to the downlink control channel and uplink and downlink resources of a target time unit where the target transmission is located. Source division; the first determination module 602 includes: a fourth determination submodule 6024, configured to use the time domain resource indicated by the indication domain as the time domain resource transmitted by the target corresponding to the downlink control channel; or, A fifth determining sub-module 6025 is configured to determine an uplink resource and / or a downlink resource of a target time unit where the target transmission is located according to the indication field, and use the uplink resource or all or part of the downlink resources as the target. Time-domain resources for transmission; or all or part of the uplink resources or downlink resources that are pre-approved or configured for data transmission as the time-domain resources for the target transmission; or, the sixth determining submodule 6026 To determine the time domain resources of the target transmission according to the time domain resources indicated by the indication domain and the uplink and downlink resource division of the target time unit.

In the terminal according to the embodiment of the present invention, the sixth determining submodule 6026 includes: a first determining unit 60261, configured to combine all or part of time domain resources in the uplink resources or downlink resources determined according to the indication domain with the indication domain The maximum value, minimum value, intersection or union of the indicated time domain resources as the time domain resources transmitted by the target; or, a second determining unit 60262 is configured to pre-appoint or configure the uplink resource or the downlink resource All or part of the time domain resources of the resources used for transmitting data are the maximum, minimum, intersection, or union of the time domain resources indicated by the indication domain as the time domain resources transmitted by the target; or A three determining unit 60263 is 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 indication domain, or does not exceed the uplink resource or the downlink resource determined according to the indication domain The size of a predetermined or configured area for transmitting data, The time domain resource indicated by the indication domain is used as the time domain resource of the target transmission; or, the fourth determining unit 60264 is configured to: if the time domain resource indicated by the indication domain exceeds the uplink resource determined according to the indication domain Or the size of the downlink resource, use the uplink resource or 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 for the target transmission, or use the uplink resource Or the maximum value, minimum value, intersection, or union of 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, the fifth determining unit 60265 is configured to: 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 field. The time domain resource transmitted by the target in the area where the data is transmitted, or the time domain resource indicated by the indication domain as the time domain resource transmitted by the target, or Use the maximum, minimum, intersection, or union of the uplink resource or the downlink resource as a pre-approved or configured area for transmitting data with the time domain resource indicated by the indication domain as the time domain resource for the target transmission .

For the terminal according to the embodiment 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 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 DCL 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 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 channel. Corresponding ACK / NACK feedback.

In the terminal of the embodiment 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 continuous A2 starting from the current time unit 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, A1, A2, and A3 are determined according to pre-agreed rules or according to high-level information The configuration of the command is determined or determined according to the indication field in the downlink control channel.

In the terminal of the embodiment of the present invention, the time domain resource indicated by the indication field includes one or more of the following information: the number of symbols, the position of the symbols, the number of mini-slots, the position of the number of mini-slots, the number of time slots, and time Slot positions, the number of sub-frames, and the position of the sub-frames; where the mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

In the terminal according to the embodiment of the present invention, the uplink and downlink resource division of the target time unit where the target transmission is indicated by the indication field specifically includes: resource information of downlink resources in the target time unit where the target transmission is located; or, the target transmission Resource information of uplink resources in the target time unit where the resource is located; or, at least two of resource information of downlink resources, resource information of the uplink resource, and resource information of the guard interval GP in the target time unit where the target transmission is located. The resource information includes the resource size and / or location; or, the structure type of the target time unit corresponding to the downlink control channel.

In the terminal of the embodiment 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, and the target time The symbols or mini-slots or time slots or sub-frames in the 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 uplink transmission. The third part of the symbol or mini-slot or time slot or sub-frame is used for downlink transmission.

In the terminal of the embodiment of the present invention, the target time unit is a unit that is defined or configured in advance and includes D1 sub-frames, D2 time slots, D3 mini-slots, or D4 symbols, where D1, D2, D3, and D4 are greater than Or an integer equal to 1.

The terminal according to the embodiment of the present invention determines the time domain resources of the corresponding transmission based on the indication information in the scheduling signaling, so as to perform correct transmission.

Seventh embodiment

In order to better achieve the foregoing objective, as shown in FIG. 7, a fifth embodiment of the present invention further provides a terminal. The terminal includes a processor 700 and 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; receiving a downlink control channel through the transceiver 710; when the processor 700 When calling and executing the programs and data stored in the memory 720, the following function modules are implemented: a receiving module for receiving a downlink control channel carrying an instruction field, and the instruction field is used to instruct the downlink control channel Time domain resources of the corresponding target transmission and / or uplink and downlink resource division of the target time unit where the target transmission is located; A first determining module is configured to determine a time domain resource of a target transmission corresponding to the downlink control channel according to the indication domain; a first transmission module is used to transmit data on the time domain resource.

The processor 700 is configured to read the program in the memory 720 and execute the following process: the downlink control channel carrying the indication field is received through the transceiver 710, and the indication field is used to indicate the time domain of the target transmission corresponding to the downlink control channel. Resource and / or uplink and downlink resource division of the target time unit where the target transmission is located; according to the indication field, determine the time domain resource of the target transmission corresponding to the downlink control channel; and transmit data on 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 elements, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. 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 the embodiment of the present invention, the processor 700 is configured to send, through the transceiver 710, a downlink control channel carrying an indication field, where the indication field is used to indicate that the downlink control channel corresponds to Time domain resources of the target transmission and / or uplink and downlink resource division of the target time unit where the target transmission is located; according to the indication domain, determine the time domain resources of the target transmission corresponding to the downlink control channel; transmit on the time domain resources Data, to achieve the purpose of transmission in a variable time slot structure, and then to solve the problem of how to perform transmission in a variable time slot structure is not given in the related art.

Eighth embodiment

As shown in FIG. 8, an embodiment of the present invention further provides a base station, including: a sending module 801, configured to send a downlink control channel carrying an indication field, where the indication field is used to indicate a corresponding downlink control channel. The time domain resource of the target transmission and / or the uplink and downlink resource division of the target time unit where the target transmission is located; the second determining module 802 is configured to determine the time domain resource of the target transmission corresponding to the downlink control channel according to the indication domain. A second transmission module 803, configured to transmit data on the time domain resource.

In the base station according to the embodiment of the present invention, the indication field is only used to indicate a time domain resource of a target transmission corresponding to the downlink control channel; the second determination module 802 includes a seventh determination sub-module 8021 for The time domain resource indicated by the indication domain is used as the time domain resource transmitted by the target corresponding to the downlink control channel.

In the base station according to the embodiment of the present invention, the indication field is only used to indicate the uplink and downlink resource division of the target time unit where the target transmission is located; the second determination module 802 includes: an eighth determination submodule 8022, which is used to indicate the Domain, determining uplink resources and / or downlink resources of a target time unit where the target transmission is located; The ninth determining submodule 8023 is configured to use the uplink resource or all or part of the downlink resource as a time domain resource for the target transmission; or use the uplink resource or the downlink resource that is previously agreed or configured for transmission All or part of the data resources are used as time domain resources for the target transmission.

In the base station according to the embodiment of the present invention, the indication field is used to indicate a time domain resource of a target transmission corresponding to the downlink control channel and an uplink and downlink resource division of a target time unit where the target transmission is located; the second determining module 802 includes : The tenth determination sub-module 8024 is used to time-domain resources indicated by the indication domain as the time-domain resources transmitted by the target corresponding to the downlink control channel; or the eleventh determination sub-module 8025 is used to Determining the uplink resource and / or the downlink resource of the target time unit where the target transmission is located according to the indication field, and using the uplink resource or all or part of the downlink resources as the time domain resource of the target transmission; or the uplink All or a part of the resources or downlink resources that are pre-agreed or configured for transmitting data are used as time-domain resources for the target transmission; or, the twelfth determining submodule 8026 is used to indicate according to the indication field The time domain resources of the target and the uplink and downlink resources of the target time unit are divided to determine the time domain resources of the target transmission.

In the base station according to the embodiment of the present invention, the twelfth determination submodule 8026 includes: a sixth determination unit 80261, configured to combine all or part of time domain resources in the uplink resource or the downlink resource determined according to the indication message with the The maximum value, minimum value, intersection, or union of the time domain resources indicated by the indication domain is used as the time domain resources transmitted by the target; or, the seventh determining unit 80262 is configured to pre-appoint the uplink resources or the downlink resources Or match All or part of the time domain resources set in the resource for transmitting data and the maximum, minimum, intersection or union of the time domain resources indicated by the indication domain are used as the time domain resources transmitted by the target; or, An eighth determining unit 80263 is 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 indication domain, or does not exceed the uplink resource or the downlink resource determined according to the indication domain The size of the area for data transmission that is agreed or configured in advance, the time domain resource indicated by the indication domain is used as the time domain resource transmitted by the target; or, the ninth determining unit 80264 is configured to The indicated time domain resource exceeds the size of the uplink resource or the downlink resource determined according to the indicated domain, then the uplink resource or the downlink resource is used as the time domain resource for the target transmission, or the time domain indicated by the indication domain Resource as the time domain resource transmitted by the target, or the maximum value, minimum value, and maximum value of the uplink resource or the downlink resource and the time domain resource indicated by the indication domain Set or union set as the time domain resource transmitted by the target; or, the tenth determining unit 80265 is configured to pre-agree in the uplink resource or the downlink resource determined by the indication domain if the time domain resource indicated by the indication domain exceeds Or the size of the area configured for data transmission, 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 The time domain resource is used as the time domain resource of the target transmission, or the maximum or minimum value of the time domain resource indicated by the indication domain or the uplink resource or the downlink resource is pre-approved or configured for data transmission. , Intersection or union as the time domain resources transmitted by this target.

In the base station according to the embodiment 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 the 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 DCI used by the downlink control channel is 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 format of the DCI used by the downlink control channel is the downlink DCI format, the 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 base station according to the embodiment 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 continuous start of the current time unit 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, A1, A2, and A3 are determined according to pre-agreed rules or according to high-level The configuration of the signaling is determined or determined according to the indication field in the downlink control channel.

In the base station according to the embodiment of the present invention, the time domain resource indicated by the indication field includes one or more of the following information: number of symbols, position of symbols, number of mini-slots, number of mini-slot positions, number of time slots, Slot position, number of sub-frames, position of sub-frames; 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 the embodiment of the present invention, the uplink and downlink resource division of the target time unit where the target transmission indicated by the indication field includes, specifically includes: Resource information of downlink resources in the target time unit where the target transmission is located; or resource information of uplink resources in the target time unit where the target transmission is located; or resource information and uplink of downlink resources in the target time unit where the target transmission is located At least two of a resource message of a resource and a resource message of a guard interval GP, wherein the resource message includes a resource size and / or a position; or a structure type of a target time unit corresponding to the downlink control channel.

In the base station according to the embodiment 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, and the target The symbols or mini-slots or time slots or sub-frames in the 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 the uplink. For transmission, the second part of the symbol or mini-slot or time slot or sub-frame is used for downlink transmission of the third structure type.

In the base station according to the embodiment of the present invention, the target time unit is a unit including D1 sub-frames, D2 time slots, D3 mini-slots, or D4 symbols, which are defined or configured in advance, where D1, D2, D3, and D4 are An integer greater than or equal to 1.

The base station according to the embodiment of the present invention sends a downlink control channel carrying an indication field, where the indication field is used to indicate time domain resources of a target transmission corresponding to the downlink control channel and / or uplink and downlink of a target time unit where the target transmission is located. Resource division; according to the indication field, determine the time domain resource of the target transmission corresponding to the downlink control channel; transmit data on the time domain resource to achieve the purpose of transmission in a variable time slot structure, and then resolve the related The technology does not give the question of how to transmit in a variable slot structure.

Ninth embodiment

In order to better achieve the foregoing objective, as shown in FIG. 9, the seventh embodiment of the present invention further provides a base station, the base station includes: a processor 900; a memory connected to the processor 900 through a bus interface; The memory 920, and the transceiver 910 connected to the processor 900 through a bus interface; the memory 920 is used for storing programs and data used by the processor in performing operations; and sending data information or guidance through the transceiver 910 Frequency, and also receives the uplink control channel through the transceiver 910; when the processor 900 calls and executes the programs and data stored in the memory 920, the following function modules are implemented: a sending module for sending carrying instructions A downlink control channel in the domain, the indication domain is used to indicate a time domain resource of a target transmission corresponding to the downlink control channel and / or an uplink and downlink resource division of a target time unit in which the target transmission is located; a second determining module is configured according to The indication domain determines a time domain resource of a target transmission corresponding to the downlink control channel; and a second transmission module is configured to transmit data on 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 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 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 the embodiment of the present invention, the processor 900 is configured to send, via the transceiver 910, a downlink control channel carrying an indication domain, where the indication domain is used to indicate a time domain resource of a target transmission corresponding to the downlink control channel and / or the The uplink and downlink resources of the target time unit where the target transmission is located; according to the indication field, the time domain resource of the target transmission corresponding to the downlink control channel is determined; the data is transmitted on the time domain resource, which realizes the variable slot structure The purpose of performing transmission further solves the problem that the related art does not provide how to perform transmission in a variable slot structure.

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

Claims (44)

A data transmission method applied to a terminal includes receiving a downlink control channel carrying an indication field, where the indication field is used to indicate a time domain resource of a target transmission corresponding to the downlink control channel and / or a target time unit where the target transmission is located The uplink and downlink resources are divided; according to the indication domain, the time domain resources of the target transmission corresponding to the downlink control channel are determined; and data is transmitted on the time domain resources. The data transmission method according to claim 1, wherein the indication field is only used to indicate a time domain resource of a target transmission corresponding to the downlink control channel; and the target transmission corresponding to the downlink control channel is determined according to the indication field. The step of the time domain resource includes: the time domain resource indicated by the indication domain is used as the time domain resource transmitted by the target corresponding to the downlink control channel. The data transmission method according to claim 1, wherein the indication field is only used to indicate the uplink and downlink resource division of the target time unit where the target transmission is located; and according to the indication field, the target transmission corresponding to the downlink control channel is determined. The step of time domain resources includes: determining an uplink resource and / or a downlink resource of a target time unit where the target transmission is located according to the indication domain; using the uplink resource or all or part of the downlink resources as the target transmission Time domain resources; or all or part of the uplink resources or downlink resources that are pre-agreed or configured for data transmission are used as the time domain resources for the target transmission. The data transmission method according to claim 1, wherein the indication field is used to indicate a time domain resource of a target transmission corresponding to the downlink control channel and an uplink and downlink resource division of a target time unit where the target transmission is located; The indication domain, the step of determining the time domain resource of the target transmission corresponding to the downlink control channel, comprising: using the time domain resource indicated by the indication domain as the time domain resource of the target transmission corresponding to the downlink control channel; or, Determining the uplink resource and / or the downlink resource of the target time unit where the target transmission is located according to the indication field, and using the uplink resource or all or part of the downlink resources as the time domain resource of the target transmission; or the uplink All or a part of the resources or downlink resources that are pre-agreed or configured for transmitting data are used as the time domain resources transmitted by the target; or, based on the time domain resources indicated by the indication domain and the target time unit up and down Line resource division to determine the time domain resources of the target transmission. The data transmission method according to claim 4, wherein the step of determining the time domain resource of the target transmission according to the time domain resource indicated by the indication domain and the uplink and downlink resource division of the target time unit includes: All or part of the time domain resources in the uplink resources or downlink resources determined by the indication domain and the maximum, minimum, intersection or union of the time domain resources indicated by the indication domain are used as the time domain resources transmitted by the target; or , All or part of the time domain resources among the uplink resources or the downlink resources that are pre-agreed or configured for transmitting data are combined with the maximum, minimum, intersection, or combination of the time domain resources indicated by the indication domain Set as the time domain resource transmitted by the target; or, if the time domain resource indicated by the indication domain does not exceed the size of the uplink or downlink resources determined according to the indication domain, or does not exceed the uplink determined by the indication domain Resource or the size of the area for data transmission that is previously agreed or configured in the downlink resource, then the time domain resource indicated by the indication domain is used as the target transmission 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 indication domain, use the uplink resource or the downlink resource as the time domain for the target transmission Resources, or the time domain resources indicated by the indication domain as the time domain resources transmitted by the target, or the maximum, minimum, and intersection of the uplink resources or the downlink resources with the time domain resources indicated by the indication domain Or union 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 downlink resource area previously agreed or configured in the downlink resource determined according to the indication domain The size of 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 for the target transmission. Domain resources, or the area pre-approved or configured in the uplink resources or the downlink resources for data transmission and the time domain information indicated by the indication domain When the maximum value, minimum value, and sets as an intersection or the target transmission domain resource. The data transmission method according to any one of claims 1 to 5, wherein the target transmission corresponding to the downlink control channel includes: if the format of the DCI used by the downlink control channel is an uplink DCI format, the downlink The target transmission corresponding to the 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 The downlink 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 The corresponding ACK / NACK feedback or the ACK / NACK feedback corresponding to the downlink control channel. The data transmission method according to any one of claims 1 to 5, wherein the target time unit is one of the following time units: the current time unit in which the downlink control channel is transmitted, and the A1th time after the current time unit Time units, consecutive A2 time units starting from the current time unit, or consecutive A3 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 is determined according to a pre-agreed rule 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 any one of claims 1 to 5, wherein the time domain resource indicated by the indication field includes one or more of the following messages: number of symbols, position of symbols, number of mini-slots, mini -slot number position, slot number, slot position, sub frame number, sub frame position; where 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 uplink and downlink resource division of the target time unit in which the target transmission is indicated indicated by the indication field includes resource information of downlink resources in the target time unit in which the target transmission is located; Or, the resource information of the uplink resource in the target time unit where the target transmission is located; or, at least 2 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 where the target transmission is located. , Wherein the resource information includes the resource size and / or location; or, the structure type of the 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: all symbols or mini-slots or time slots or sub-frames in the target time unit are 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 any one of claims 1 to 5, 9 and 10, wherein the target time unit is a predefined or configured D1 sub-frame, D2 time slots, D3 mini-slot or A unit of D4 symbols, where D1, D2, D3, and D4 are integers greater than or equal to 1. A data transmission method applied to a base station includes sending a downlink control channel carrying an indication field, where the indication field is used to indicate a time domain resource of a target transmission corresponding to the downlink control channel and / or a target time at which the target transmission is located Division of uplink and downlink resources of the unit; determining the time domain resources of the target transmission corresponding to the downlink control channel according to the indication domain; transmitting data on the time domain resources. The data transmission method according to claim 12, wherein the indication field is only used to indicate a time domain resource of a target transmission corresponding to the downlink control channel; and the target transmission corresponding to the downlink control channel is determined according to the indication field. The step of the time domain resource includes: the time domain resource indicated by the indication domain is used as the time domain resource transmitted by the target corresponding to the downlink control channel. The data transmission method according to claim 12, wherein the indication field is only used to indicate the uplink and downlink resource division of the target time unit where the target transmission is located; and according to the indication field, the target transmission corresponding to the downlink control channel is determined. The step of time domain resources includes: determining an uplink resource and / or a downlink resource of a target time unit where the target transmission is located according to the indication domain; using the uplink resource or all or part of the downlink resources as the target transmission Time domain resources; or all or part of the uplink resources or downlink resources that are pre-agreed or configured for data transmission are used as the time domain resources for the target transmission. The data transmission method according to claim 12, wherein the indication field is used to indicate a time domain resource of a target transmission corresponding to the downlink control channel and an uplink and downlink resource division of a target time unit where the target transmission is located; The indication domain, the step of determining the time domain resource of the target transmission corresponding to the downlink control channel, comprising: using the time domain resource indicated by the indication domain as the time domain resource of the target transmission corresponding to the downlink control channel; or, Determining the uplink resource and / or the downlink resource of the target time unit where the target transmission is located according to the indication field, and using the uplink resource or all or part of the downlink resources as the time domain resource of the target transmission; or the uplink All or a part of the resources or downlink resources that are pre-agreed or configured for transmitting data are used as the time domain resources transmitted by the target; or, based on the time domain resources indicated by the indication domain and the target time unit up and down Line resource division to determine the time domain resources of the target transmission. The data transmission method according to claim 15, wherein the step of determining the time domain resource of the target transmission according to the time domain resource indicated by the indication domain and the uplink and downlink resource division of the target time unit includes: All or part of the time domain resources in the uplink resources or downlink resources determined by the indication domain and the maximum, minimum, intersection or union of the time domain resources indicated by the indication domain are used as the time domain resources transmitted by the target; or , All or part of the time domain resources among the uplink resources or the downlink resources that are pre-agreed or configured for transmitting data are combined with the maximum, minimum, intersection, or combination of the time domain resources indicated by the indication domain Set as the time domain resource transmitted by the target; or, if the time domain resource indicated by the indication domain does not exceed the size of the uplink or downlink resources determined according to the indication domain, or does not exceed the uplink determined by the indication domain Resource or the size of the area for data transmission that is previously agreed or configured in the downlink resource, then the time domain resource indicated by the indication domain is used as the target transmission 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 indication domain, use the uplink resource or the downlink resource as the time domain for the target transmission Resources, or the time domain resources indicated by the indication domain as the time domain resources transmitted by the target, or the maximum, minimum, and intersection of the uplink resources or the downlink resources with the time domain resources indicated by the indication domain Or union 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 downlink resource area previously agreed or configured in the downlink resource determined according to the indication domain The size of 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 for the target transmission. Domain resources, or the area pre-approved or configured in the uplink resources or the downlink resources for data transmission and the time domain information indicated by the indication domain The maximum, minimum, intersection, or union in the source is used as the time domain resource for the destination transmission. The data transmission method according to any one of claims 12 to 16, wherein the target transmission corresponding to the downlink control channel includes: if the format of the DCI used by the downlink control channel is an uplink DCI format, the downlink The target transmission corresponding to the 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 The downlink 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 The corresponding ACK / NACK feedback or the ACK / NACK feedback corresponding to the downlink control channel. The data transmission method according to any one of claims 12 to 16, wherein the target time unit is one of the following time units: the current time unit in which the downlink control channel is transmitted, and the A1th time after the current time unit Time units, consecutive A2 time units starting from the current time unit, or consecutive A3 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 is determined according to a pre-agreed rule 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 any one of claims 12 to 16, wherein the time domain resource indicated by the indication field includes one or more of the following messages: number of symbols, position of symbols, number of mini-slots, mini -slot number position, slot number, slot position, sub frame number, sub frame position; where 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 12, wherein the uplink and downlink resource division of the target time unit in which the target transmission is indicated by the indication field includes resource information of the downlink resources in the target time unit in which the target transmission is located; Or, the resource information of the uplink resource in the target time unit where the target transmission is located; or, at least 2 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 where the target transmission is located. , Wherein the resource information includes the resource size and / or location; or, the structure type of the target time unit corresponding to the downlink control channel. The data transmission method according to claim 20, 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 any one of claims 12 to 16, 20, and 21, wherein the target time unit is a predefined or configured D1 sub-frame, D2 time slots, D3 mini-slots, or A unit of D4 symbols, where D1, D2, D3, and D4 are integers greater than or equal to 1. A terminal includes: a transceiver, a processor, and a memory for storing a program used by the processor when performing an operation; wherein: the transceiver is configured to receive a downlink control channel carrying an indication field, and the indication field A time domain resource used to indicate a target transmission corresponding to the downlink control channel and / or an uplink and downlink resource division of a target time unit where the target transmission is located; the processor is configured to determine the corresponding downlink control channel according to the indication domain. Time domain resource transmitted by the target; data is transmitted on this time domain resource. The terminal according to claim 23, wherein the indication domain is only used to indicate a time domain resource of a target transmission corresponding to the downlink control channel; the processor is specifically configured to: time domain resources indicated by the indication domain, It is used as a time domain resource for target transmission corresponding to the downlink control channel. The terminal according to claim 23, wherein the indication field is only used to indicate the uplink and downlink resource division of the target time unit where the target transmission is located; and the processor is specifically configured to determine the target where the target transmission is located according to the indication field The uplink resource and / or downlink resource of the time unit; use the uplink resource or all or part of the downlink resource as the time domain resource for the target transmission; or use the uplink resource or downlink resource that is previously agreed or configured for All or part of the resources for transmitting data are used as the time domain resources for the target transmission. The terminal according to claim 23, wherein the indication field is used to indicate a time domain resource of a target transmission corresponding to the downlink control channel and an uplink and downlink resource division of a target time unit where the target transmission is located; the processor specifically uses At: the time domain resource indicated by the indication domain is used as the time domain resource of the target transmission corresponding to the downlink control channel; or, according to the indication domain, the uplink resource of the target time unit where the target transmission is located and / or Downlink resource, using the uplink resource or all or part of the downlink resource as the time domain resource for the target transmission; or all or one of the uplink resource or downlink resource that is previously agreed or configured for transmitting data Part of the resources are used as the time domain resources of the target transmission; or, the time domain resources of the target transmission are determined according to the time domain resources indicated by the indication domain and the uplink and downlink resource division of the target time unit. The terminal according to claim 26, wherein the processor is specifically configured to: use all or part of the time domain resources in the uplink resources or the downlink resources determined according to the indication domain and the time domain resources indicated by the indication domain The maximum value, minimum value, intersection, or union as the time domain resource for the target transmission; or all or part of the time domain resource in the uplink resource or the downlink resource that is previously agreed or configured for data transmission And the maximum, minimum, intersection or union of the time domain resources indicated by the indication domain as the time domain resources transmitted by the target; or, if the time domain resources indicated by the indication domain do not exceed the time domain according to the indication domain The size of the determined uplink resource or downlink resource does not exceed the size of the uplink resource or the downlink resource that is predetermined or configured for data transmission in the uplink resource or the downlink resource determined according to the indication field. Domain resource 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 indication domain Size, the uplink resource or 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 downlink resource and The maximum, minimum, intersection, or union of the time domain resources indicated by the indication domain is used as the time domain resource transmitted by the target; or, if the time domain resources indicated by the indication domain exceed the time domain resources determined according to the indication domain If the uplink resource or the area of the downlink resource that is pre-agreed or configured for data transmission is used, then the uplink resource or the area of the downlink resource that is pre-agreed or configured for data transmission is used 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 for the target transmission, or pre-appointed or configured in the uplink resource or the downlink resource for data transmission and the time indicated by the indication domain The maximum, minimum, intersection, or union of the domain resources is used as the time domain resource for this target transmission. The terminal according to any one of claims 23 to 27, wherein the target transmission corresponding to the downlink control channel includes: if the format of the DCI used by the downlink control channel is an uplink DCI format, the downlink control channel The corresponding 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 control. The downlink 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 corresponds to the downlink shared channel scheduled by the downlink control channel ACK / NACK feedback or ACK / NACK feedback corresponding to the downlink control channel. The terminal according to any one of claims 23 to 27, wherein the target time unit is one of the following time units: the current time unit in which the downlink control channel is transmitted, and the A1 time after the current time unit Unit, consecutive A2 time units starting from the current time unit, or consecutive A3 time units following 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 determined according to a configuration of high-level signaling, or determined according to an indication field in the downlink control channel. The terminal according to any one of claims 23 to 27, wherein the time domain resource indicated by the indication field includes one or more of the following messages: number of symbols, position of symbols, number of mini-slots, mini-slot The number of positions, the number of time slots, the position of time slots, the number of sub-frames, and the position of sub-frames; where 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 23, wherein the uplink and downlink resource division of the target time unit where the target transmission indicated by the indication field includes: resource information of downlink resources in the target time unit where the target transmission is located; or, Resource information of uplink resources in the target time unit where the target transmission is located; or at least two of resource information of downlink resources, resource information of the uplink resources, and resource information of the guard interval GP in the target time unit where the target transmission is located, The resource information includes a resource size and / or a position; or, a structure type of a target time unit corresponding to the downlink control channel. The terminal according to claim 31, 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 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 any one of claims 23 to 27, 31, and 32, wherein the target time unit is a predefined or configured D1 sub-frame, D2 time slots, D3 mini-slots, or D4 A unit of a symbol, where D1, D2, D3, and D4 are integers greater than or equal to 1. A base station includes: a transceiver, a processor, and a memory for storing a program used by the processor when performing operations; wherein: the transceiver is used to send a downlink control channel carrying an instruction field, and the instruction The domain is used to indicate the time domain resource of the target transmission corresponding to the downlink control channel and / or the uplink and downlink resource division of the target time unit where the target transmission is located; the processor is configured to determine the location of the downlink control channel according to the indication domain The time domain resource transmitted by the corresponding target; data is transmitted on this time domain resource. The base station according to claim 34, wherein the indication domain is only used to indicate a time domain resource of a target transmission corresponding to the downlink control channel; and the processor is specifically configured to: time domain resources indicated by the indication domain As the time domain resource of the target transmission corresponding to the downlink control channel. The base station according to claim 34, wherein the indication field is only used to indicate the uplink and downlink resource division of the target time unit where the target transmission is located; and the processor is specifically configured to determine, according to the indication field, the location where the target transmission is located. The uplink resource and / or the downlink resource of the target time unit; use the uplink resource or all or part of the downlink resource as the time domain resource for the target transmission; or use the uplink resource or the downlink resource with a predetermined or configured resource All or part of the resources for transmitting data are used as the time domain resources for the target transmission. The base station according to claim 36, wherein the indication field is used to indicate a time domain resource of a target transmission corresponding to the downlink control channel and an uplink and downlink resource division of a target time unit where the target transmission is located; the processor specifically For: the time domain resource indicated by the indication domain is used as the time domain resource of the target transmission corresponding to the downlink control channel; or, according to the indication domain, the uplink resource of the target time unit where the target transmission is located and / Or downlink resources, using the uplink resources or all or part of the downlink resources as time-domain resources for the target transmission; or all of the uplink resources or downlink resources that are previously agreed or configured for data transmission Or, some resources are used as the time domain resources of the target transmission; or, the time domain resources of the target transmission are determined according to the time domain resources indicated by the indication domain and the uplink and downlink resource division of the target time unit. The base station according to claim 37, wherein the processor is specifically configured to: use all or part of the time domain resources in the uplink resources or the downlink resources determined according to the indication domain and the time domain resources indicated by the indication domain Maximum, minimum, intersection, or union as the time domain resource for the target transmission; or all or part of the time domain of the uplink resource or the downlink resource that is pre-agreed or configured for data transmission Resource, the maximum value, minimum value, intersection or union of the time domain resource indicated by the indication domain as the time domain resource transmitted by the target; or, if the time domain resource indicated by the indication domain does not exceed the time domain resource indicated by the indication The size of the uplink resource or the downlink resource determined by the domain, or does not exceed the size of the area pre-approved or configured in the uplink resource or the downlink resource determined according to the indication domain for data transmission, the The time domain resource 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 indication domain Size, the uplink resource or 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 downlink resource is used And the maximum, minimum, intersection, or union of the time domain resources indicated by the indication domain as the time domain resources transmitted by the target; or, if the time domain resources indicated by the indication domain exceed those determined according to the indication domain If the size of the area for data transmission that is pre-agreed or configured in the uplink resource or the downlink resource is the time domain of the target transmission, use the area for data transmission that is pre-agreed or configured in the uplink resource or the downlink resource. Resources, or use the time domain resources indicated by the indication domain as time domain resources for the target transmission, or pre-approved or configured in the uplink resources or the downlink resources for data transmission and the area indicated by the indication domain The maximum, minimum, intersection, or union of the time domain resources is used as the time domain resource transmitted by the target. The base station according to any one of claims 34 to 38, wherein the target transmission corresponding to the downlink control channel includes: if the format of the DCI used by the downlink control channel is an uplink DCI format, the downlink control The target transmission corresponding to the 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 The downlink shared channel transmission scheduled by the 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 The corresponding ACK / NACK feedback or the ACK / NACK feedback corresponding to the downlink control channel. The base station according to claim 34, 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 A2 time units at the beginning of the 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 determined according to predetermined rules Or determined according to the configuration of higher layer signaling or determined according to the indication field in the downlink control channel. The base station according to claim 34, wherein the time-domain resource indicated by the indication field includes one or more of the following information: symbol number, symbol position, mini-slot number, mini-slot number position, time The number of slots, slot positions, number of sub-frames, and position of sub-frames; where the 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 34, wherein the uplink and downlink resource division of the target time unit where the target transmission is indicated by the indication field includes: resource information of the downlink resources in the target time unit where the target transmission is located; , 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 where the target transmission is located; or Where the resource information includes resource size and / or location; or, the type of the target time unit corresponding to the downlink control channel. The base station according to claim 42, 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 any one of claims 34 to 38 and 40 to 43, wherein the target time unit is a predefined or configured D1 sub-frame, D2 time slots, D3 mini-slots, or D4 Symbol unit, where D1, D2, D3, and D4 are integers greater than or equal to 1.