A data transmission method, a terminal and a base station

Abstract

The application provides a data transmission method, a terminal and a base station, and solves the problem that the prior art does not provide how to perform transmission in a variable time slot structure. The data transmission method comprises the following steps: receiving a downlink control channel carrying an indication field, wherein the indication field is used for indicating 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 in which the target transmission is located; determining the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field; and performing the target transmission on the time domain resources, so as to achieve the purpose of performing transmission in a variable time slot structure, and further solve the problem that the prior art does not provide how to perform transmission in a variable time slot structure.

Description

[0001] This application is a divisional application of application number 201710010575.5, with a filing date of January 6, 2017, and an invention title of "A data transmission method, terminal and base station". TECHNICAL FIELD

[0002] The present application relates to the technical field of communication, in particular to a data transmission method, terminal and base station. BACKGROUND

[0003] With the development and change of mobile communication service demand, ITU (International Telecommunication Union) and 3GPP and other organizations have begun to study new wireless communication systems (such as 5G systems). The new wireless communication system can support multiple service types, such as enhanced mobile broadband eMBB service, ultra-reliable and low-latency communication URLLC service, and massive Internet of Things mMTC, and the amount of services of the same type will also change. In order to support different service types and flexible and variable service amounts, transmission structures such as full downlink time slots, full uplink time slots, partial downlink and partial uplink time slots can be used, and the partial downlink and partial uplink time slots can be further divided into downlink-dominant time slots and uplink-dominant time slots. At present, there is no related scheme for how to transmit in the variable time slot structure. SUMMARY

[0004] The purpose of the present application is to provide a data transmission method, terminal and base station to solve the problem that the prior art does not give how to transmit in the variable time slot structure.

[0005] In order to achieve the above-mentioned purpose, the embodiments of the present application provide a data transmission method applied to a terminal, comprising:

[0006] receiving a downlink control channel carrying an indication field, the indication field being 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 in which the target transmission is located;

[0007] determining the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field;

[0008] performing the target transmission on the time domain resources.

[0009] Among them, the indication field is only used to indicate the time domain resources of the target transmission corresponding to the downlink control channel;

[0010] The step of determining the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field comprises:

[0011] The time domain resource indicated by the indication field is used as the time domain resource of the target transmission corresponding to the downlink control channel.

[0012] The indication field is used to indicate the uplink and downlink resource division of the target time unit in which the target transmission is located.

[0013] The step of determining the time domain resource of the target transmission corresponding to the downlink control channel according to the indication field comprises:

[0014] The uplink and / or downlink resource of the target time unit in which the target transmission is located is determined according to the indication field.

[0015] All or part of the uplink or downlink resource is used as the time domain resource of the target transmission, or all or part of the resource in the uplink or downlink resource that is pre-agreed or configured to be used for data transmission is used as the time domain resource of the target transmission.

[0016] The indication field is used to indicate the time domain resource 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.

[0017] The step of determining the time domain resource of the target transmission corresponding to the downlink control channel according to the indication field comprises:

[0018] The time domain resource indicated by the indication field is used as the time domain resource of the target transmission corresponding to the downlink control channel, or

[0019] The uplink and / or downlink resource of the target time unit in which the target transmission is located is determined according to the indication field, all or part of the uplink or downlink resource is used as the time domain resource of the target transmission, or all or part of the resource in the uplink or downlink resource that is pre-agreed or configured to be used for data transmission is used as the time domain resource of the target transmission, or

[0020] The time domain resource of the target transmission is determined according to the time domain resource indicated by the indication field and the uplink and downlink resource division of the target time unit.

[0021] The step of determining the time domain resource of the target transmission according to the time domain resource indicated by the indication field and the uplink and downlink resource division of the target time unit comprises:

[0022] All or part of the time domain resource in the uplink or downlink resource determined according to the indication field is used as the maximum value, the minimum value, the intersection or the union of the time domain resource indicated by the indication field, as the time domain resource of the target transmission, or

[0023] all or part of the time domain resources in the resources pre-agreed or configured in the uplink resource or the downlink resource for transmitting data, and the maximum, minimum, intersection or union of the time domain resources indicated by the indication field, as the time domain resources of the target transmission; or,

[0024] if the size of the time domain resources 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 size of the region pre-agreed or configured in the uplink resource or the downlink resource for transmitting data according to the indication field, the time domain resources indicated by the indication field are taken as the time domain resources of the target transmission; or,

[0025] if the size of the time domain resources indicated by the indication field exceeds the size of the uplink resource or the downlink resource determined according to the indication field, the uplink resource or the downlink resource is taken as the time domain resources of the target transmission, or the time domain resources indicated by the indication field are taken as the time domain resources of the target transmission, or the maximum, minimum, intersection or union of the uplink resource or the downlink resource and the time domain resources indicated by the indication field is taken as the time domain resources of the target transmission; or,

[0026] if the size of the time domain resources indicated by the indication field exceeds the size of the region pre-agreed or configured in the uplink resource or the downlink resource for transmitting data according to the indication field, the region pre-agreed or configured in the uplink resource or the downlink resource for transmitting data is taken as the time domain resources of the target transmission, or the time domain resources indicated by the indication field are taken as the time domain resources of the target transmission, or the maximum, minimum, intersection or union of the region pre-agreed or configured in the uplink resource or the downlink resource for transmitting data and the time domain resources indicated by the indication field is taken as the time domain resources of the target transmission.

[0027] The target transmission corresponding to the downlink control channel specifically includes:

[0028] if the format of the DCI used by the downlink control channel is an uplink DCI format, the target transmission corresponding to the downlink control channel is the uplink shared channel transmission scheduled by the downlink control channel; or,

[0029] 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,

[0030] If a format of DCI used by the downlink control channel is a downlink DCI format, a target transmission corresponding to the downlink control channel is ACK / NACK feedback corresponding to a downlink shared channel scheduled by the downlink control channel or ACK / NACK feedback corresponding to the downlink control channel.

[0031] The target time unit is one of the following time units: a current time unit in which the downlink control channel is transmitted, an A1th time unit after the current time unit, A2 consecutive time units starting from the current time unit, or A3 consecutive time units after the current time unit, where A1, A2, and A3 are 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-layer signaling, or determined according to an indication field in the downlink control channel.

[0032] The time-domain resource indicated by the indication field includes one or more of the following information:

[0033] The number of symbols, the symbol position, the number of mini-slots, the mini-slot position, the number of slots, the slot position, the number of subframes, and the subframe position.

[0034] The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

[0035] The uplink and downlink resource division of the target time unit in which the target transmission indicated by the indication field is located, specifically includes:

[0036] Resource information of downlink resources in the target time unit in which the target transmission is located, or resource information of uplink resources in the target time unit in which the target transmission is located, or at least two of the resource information of the downlink resources, the resource information of the uplink resources, and resource information of a guard period GP in the target time unit in which the target transmission is located, where the resource information includes resource size and / or position; or

[0037] The structure type of the target time unit corresponding to the downlink control channel.

[0038] The structure type includes at least one of the following structure types:

[0039] a first structure type in which all symbols or mini-slots or time slots or subframes in the target time unit are used for uplink transmission, a second structure type in which all symbols or mini-slots or time slots or subframes in the target time unit are used for downlink transmission, and a third structure type in which a first part of symbols or mini-slots or time slots or subframes in the target time unit are used for uplink transmission and a second part of symbols or mini-slots or time slots or subframes in the target time unit are used for downlink transmission.

[0040] The target time unit is a predefined or configured unit containing 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.

[0041] Embodiments of the present application also provide a data transmission method applied to a base station, comprising:

[0042] sending a downlink control channel carrying an indication field, the indication field being 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 in which the target transmission is located;

[0043] determining the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field;

[0044] performing the target transmission on the time domain resources.

[0045] The indication field is only used to indicate the time domain resources of the target transmission corresponding to the downlink control channel.

[0046] The step of determining the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field comprises:

[0047] taking the time domain resources indicated by the indication field as the time domain resources of the target transmission corresponding to the downlink control channel.

[0048] The indication field is only used to indicate the uplink and downlink resource division of the target time unit in which the target transmission is located.

[0049] The step of determining the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field comprises:

[0050] determining the uplink and / or downlink resources of the target time unit in which the target transmission is located according to the indication field;

[0051] all or part of the resources in the uplink resources or the downlink resources are used as the time domain resources of the target transmission; or all or part of the resources in the uplink resources or the downlink resources, which are pre-agreed or configured to be used for data transmission, are used as the time domain resources of the target transmission.

[0052] The indication field is used to indicate the time domain resources of the target transmission corresponding to the downlink control channel and the uplink / downlink resource division of the target time unit in which the target transmission is located.

[0053] The step of determining the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field comprises:

[0054] The time domain resources indicated by the indication field are used as the time domain resources of the target transmission corresponding to the downlink control channel; or

[0055] According to the indication field, the uplink resources and / or the downlink resources of the target time unit in which the target transmission is located are determined, all or part of the resources in the uplink resources or the downlink resources are used as the time domain resources of the target transmission; or all or part of the resources in the uplink resources or the downlink resources, which are pre-agreed or configured to be used for data transmission, are used as the time domain resources of the target transmission; or

[0056] According to the time domain resources indicated by the indication field and the uplink / downlink resource division of the target time unit, the time domain resources of the target transmission are determined.

[0057] The step of determining the time domain resources of the target transmission according to the time domain resources indicated by the indication field and the uplink / downlink resource division of the target time unit comprises:

[0058] All or part of the time domain resources in the uplink resources or the downlink resources determined according to the indication field are used as the maximum value, the minimum value, the intersection or the union of the time domain resources indicated by the indication field, as the time domain resources of the target transmission; or

[0059] All or part of the time domain resources in the uplink resources or the downlink resources, which are pre-agreed or configured to be used for data transmission, are used as the maximum value, the minimum value, the intersection or the union of the time domain resources indicated by the indication field, as the time domain resources of the target transmission; or

[0060] If the size of the time domain resources indicated by the indication field does not exceed the size of the uplink resources or the downlink resources determined according to the indication field, or does not exceed the size of the region in the uplink resources or the downlink resources determined according to the indication field, which is pre-agreed or configured to be used for data transmission, the time domain resources indicated by the indication field are used as the time domain resources of the target transmission; or

[0061] If the time domain resource indicated by the indication field exceeds the size of the uplink resource or the downlink resource determined according to the indication field, the uplink resource or the downlink resource is taken as the time domain resource of the target transmission, or the time domain resource indicated by the indication field is taken as the time domain resource of 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 field is taken as the time domain resource of the target transmission; or,

[0062] If the time domain resource indicated by the indication field exceeds the size of the uplink resource or the downlink resource determined according to the indication field, the uplink resource or the downlink resource is taken as the time domain resource of the target transmission, or the time domain resource indicated by the indication field is taken as the time domain resource of 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 field is taken as the time domain resource of the target transmission; or,

[0063] The target transmission corresponding to the downlink control channel specifically includes:

[0064] If the format of the DCI used by the downlink control channel is an uplink DCI format, the target transmission corresponding to the downlink control channel is the uplink shared channel transmission scheduled by the downlink control channel; or,

[0065] 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,

[0066] 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 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.

[0067] The target time unit is one of the following time units: a current time unit in which the downlink control channel is transmitted, an A1th time unit after the current time unit, A2 continuous time units starting from the current time unit, or A3 continuous time units after the current time unit, where A1, A2, and A3 are 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 layer signaling, or determined according to an indication field in the downlink control channel.

[0068] The time domain resource indicated by the indication field includes one or more of the following information:

[0069] The number of symbols, the symbol position, the number of mini-slots, the mini-slot position, the number of slots, the slot position, the number of subframes, and the subframe position.

[0070] The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

[0071] The uplink and downlink resource division of the target time unit in which the target transmission is located, specifically includes:

[0072] The resource information of the downlink resource 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 in which the target transmission is located, 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 period GP in the target time unit in which the target transmission is located, wherein the resource information includes resource size and / or position; or

[0073] The structure type of the target time unit corresponding to the downlink control channel.

[0074] The structure type includes at least one of the following structure types:

[0075] The first structure type in which all symbols, mini-slots, slots, or subframes in the target time unit are used for uplink transmission, the second structure type in which all symbols, mini-slots, slots, or subframes in the target time unit are used for downlink transmission, and the third structure type in which a first part of symbols, mini-slots, slots, or subframes in the target time unit are used for uplink transmission, and a second part of symbols, mini-slots, slots, or subframes are used for downlink transmission.

[0076] The target time unit is a unit containing D1 subframes, D2 time slots, D3 mini-slots, or D4 symbols, which is predefined or configured, wherein D1, D2, D3, and D4 are integers greater than or equal to 1.

[0077] Embodiments of the present application also provide a terminal, comprising:

[0078] The receiving module is configured to receive a downlink control channel carrying an indication field, wherein 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 resource division of a target time unit in which the target transmission is located.

[0079] The first determining module is configured to determine the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field.

[0080] The first transmission module is configured to perform the target transmission on the time domain resources.

[0081] The indication field is used to indicate only the time domain resources of the target transmission corresponding to the downlink control channel.

[0082] The first determining module comprises:

[0083] The first determining submodule is configured to determine the time domain resources indicated by the indication field as the time domain resources of the target transmission corresponding to the downlink control channel.

[0084] The indication field is used to indicate only the uplink and downlink resource division of the target time unit in which the target transmission is located.

[0085] The first determining module comprises:

[0086] The second determining submodule is configured to determine uplink resources and / or downlink resources of the target time unit in which the target transmission is located according to the indication field.

[0087] The third determining submodule is configured to determine all or part of the uplink resources or the downlink resources as the time domain resources of the target transmission, or determine all or part of resources in the uplink resources or the downlink resources that are previously agreed or configured to be used for data transmission as the time domain resources of the target transmission.

[0088] 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.

[0089] The first determining module comprises:

[0090] a fourth determining submodule, configured to take the time domain resource indicated by the indication field as the time domain resource of the target transmission corresponding to the downlink control channel; or

[0091] a fifth determining submodule, configured to determine the uplink resource and / or the downlink resource of the target time unit according to the indication field, take all or part of the uplink resource or the downlink resource as the time domain resource of the target transmission; or take all or part of the resource for data transmission in the uplink resource or the downlink resource as the time domain resource of the target transmission; or

[0092] a sixth determining submodule, configured to determine the time domain resource of the target transmission according to the time domain resource indicated by the indication field and the uplink resource and / or the downlink resource of the target time unit.

[0093] The sixth determining submodule includes:

[0094] a first determining unit, configured to take all or part of the time domain resource in the uplink resource or the downlink resource determined according to the indication field, and the maximum value, the minimum value, the intersection or the union of the time domain resource indicated by the indication field, as the time domain resource of the target transmission; or

[0095] a second determining unit, configured to take all or part of the time domain resource in the resource for data transmission in the uplink resource or the downlink resource, and the maximum value, the minimum value, the intersection or the union of the time domain resource indicated by the indication field, as the time domain resource of the target transmission; or

[0096] a third determining unit, configured to take the time domain resource indicated by the indication field as the time domain resource of the target transmission 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 size of the region for data transmission in the uplink resource or the downlink resource determined according to the indication field; or

[0097] a fourth determining unit, configured to take the uplink resource or the downlink resource as the time domain resource of the target transmission if the time domain resource indicated by the indication field exceeds the size of the uplink resource or the downlink resource determined according to the indication field, or take the time domain resource indicated by the indication field as the time domain resource of the target transmission, or take the maximum value, the minimum value, the intersection or the union of the uplink resource or the downlink resource and the time domain resource indicated by the indication field as the time domain resource of the target transmission; or

[0098] The fifth determining unit is configured to: if the time domain resource indicated by the indication field exceeds the size of the region pre-agreed or configured for transmitting data in the uplink resource or the downlink resource determined according to the indication field, taking the region pre-agreed or configured for transmitting data in the uplink resource or the downlink resource as the time domain resource of the target transmission, or taking the time domain resource indicated by the indication field as the time domain resource of the target transmission, or taking the maximum value, the minimum value, the intersection or the union of the region pre-agreed or configured for transmitting data in the uplink resource or the downlink resource and the time domain resource indicated by the indication field as the time domain resource of the target transmission.

[0099] The target transmission corresponding to the downlink control channel specifically includes:

[0100] 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 an uplink shared channel transmission scheduled by the downlink control channel; or,

[0101] 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 a downlink shared channel transmission scheduled by the downlink control channel; or,

[0102] 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 ACK / NACK feedback corresponding to the downlink shared channel transmission scheduled by the downlink control channel or ACK / NACK feedback corresponding to the downlink control channel.

[0103] The target time unit is one of the following time units: a current time unit in which the downlink control channel transmission is located, an A1th time unit after the current time unit, continuous A2 time units starting from the current time unit, or continuous A3 time units after the current time unit, where A1, A2 and A3 are integers greater than or equal to 1, and A1, A2 and A3 are determined according to a pre-agreed rule or determined according to configuration of a high layer signaling or determined according to an indication field in the downlink control channel.

[0104] The time domain resource indicated by the indication field includes one or more of the following information:

[0105] The number of symbols, the position of symbols, the number of mini-slots, the position of mini-slots, the number of slots, the position of slots, the number of subframes, and the position of subframes.

[0106] The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

[0107] The uplink and downlink resource division of the target time unit in which the target transmission is located, specifically includes:

[0108] The resource information of the downlink resource 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 in which the target transmission is located, 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 period GP in the target time unit in which the target transmission is located, wherein the resource information includes resource size and / or location; or,

[0109] The structure type of the target time unit corresponding to the downlink control channel.

[0110] The structure type includes at least one of the following structure types:

[0111] The first structure type in which all symbols, mini-slots, time slots, or subframes in the target time unit are used for uplink transmission, the second structure type in which all symbols, mini-slots, time slots, or subframes in the target time unit are used for downlink transmission, and the third structure type in which a first part of symbols, mini-slots, time slots, or subframes in the target time unit are used for uplink transmission, and a second part of symbols, mini-slots, time slots, or subframes in the target time unit are used for downlink transmission.

[0112] The target time unit is a unit containing D1 subframes, D2 time slots, D3 mini-slots, or D4 symbols, which are predefined or configured, wherein D1, D2, D3, and D4 are integers greater than or equal to 1.

[0113] Embodiments of the present application also provide a base station, comprising:

[0114] The sending module is configured to send a downlink control channel carrying an indication field, wherein the indication field 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 in which the target transmission is located.

[0115] The second determining module is configured to determine the time domain resource of the target transmission corresponding to the downlink control channel according to the indication field.

[0116] The second transmission module is configured to perform the target transmission on the time domain resource.

[0117] The indication field is only used to indicate the time domain resource of the target transmission corresponding to the downlink control channel.

[0118] The second determining module comprises:

[0119] The seventh determining sub-module is configured to determine, as the time domain resource of the target transmission corresponding to the downlink control channel, the time domain resource indicated by the indication field.

[0120] The indication field is used to indicate the uplink-downlink resource division of the target time unit in which the target transmission is located.

[0121] The second determining module comprises:

[0122] The eighth determining sub-module is configured to determine, according to the indication field, the uplink resource and / or the downlink resource of the target time unit in which the target transmission is located.

[0123] The ninth determining sub-module is configured to determine, as the time domain resource of the target transmission, all or part of the uplink resource or the downlink resource, or all or part of the resource in the uplink resource or the downlink resource that is pre-agreed or configured to be used for data transmission.

[0124] The indication field is used to indicate the uplink-downlink resource division of the target time unit in which the target transmission is located.

[0125] The second determining module comprises:

[0126] The tenth determining sub-module is configured to determine, as the time domain resource of the target transmission corresponding to the downlink control channel, the time domain resource indicated by the indication field, or

[0127] The eleventh determining sub-module is configured to determine, according to the indication field, the uplink resource and / or the downlink resource of the target time unit in which the target transmission is located, determine, as the time domain resource of the target transmission, all or part of the uplink resource or the downlink resource, or all or part of the resource in the uplink resource or the downlink resource that is pre-agreed or configured to be used for data transmission, or

[0128] The twelfth determining sub-module is configured to determine, according to the time domain resource indicated by the indication field and the uplink-downlink resource division of the target time unit, the time domain resource of the target transmission.

[0129] The twelfth determining sub-module comprises:

[0130] a sixth determining unit, configured to: take all or part of time domain resources in the uplink resource or the downlink resource determined according to the indication field and a maximum value, a minimum value, an intersection or a union of the time domain resources indicated by the indication field as time domain resources of the target transmission; or

[0131] a seventh determining unit, configured to: take all or part of time domain resources in the uplink resource or the downlink resource or the resource pre-agreed or configured for data transmission as time domain resources of the target transmission; or

[0132] an eighth determining unit, configured to: if the time domain resources indicated by the indication field do not exceed a size of the uplink resource or the downlink resource determined according to the indication field or do not exceed a size of the region pre-agreed or configured for data transmission in the uplink resource or the downlink resource determined according to the indication field, take the time domain resources indicated by the indication field as time domain resources of the target transmission; or

[0133] a ninth determining unit, configured to: if the time domain resources indicated by the indication field exceed the size of the uplink resource or the downlink resource determined according to the indication field, take the uplink resource or the downlink resource as time domain resources of the target transmission, or take the time domain resources indicated by the indication field as time domain resources of the target transmission, or take a maximum value, a minimum value, an intersection or a union of the uplink resource or the downlink resource and the time domain resources indicated by the indication field as time domain resources of the target transmission; or

[0134] a tenth determining unit, configured to: if the time domain resources indicated by the indication field exceed the size of the region pre-agreed or configured for data transmission in the uplink resource or the downlink resource determined according to the indication field, take the region pre-agreed or configured for data transmission in the uplink resource or the downlink resource as time domain resources of the target transmission, or take the time domain resources indicated by the indication field as time domain resources of the target transmission, or take a maximum value, a minimum value, an intersection or a union of the region pre-agreed or configured for data transmission in the uplink resource or the downlink resource and the time domain resources indicated by the indication field as time domain resources of the target transmission.

[0135] The target transmission corresponding to the downlink control channel specifically includes:

[0136] If a 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 uplink shared channel transmission scheduled by the downlink control channel; or

[0137] If a format of DCI used by the downlink control channel is a downlink DCI format, a target transmission corresponding to the downlink control channel is a downlink shared channel transmission scheduled by the downlink control channel; or,

[0138] If a format of DCI used by the downlink control channel is a downlink DCI format, a target transmission corresponding to the downlink control channel is ACK / NACK feedback corresponding to a downlink shared channel scheduled by the downlink control channel or ACK / NACK feedback corresponding to the downlink control channel.

[0139] The target time unit is one of the following time units: a current time unit in which the downlink control channel transmission is located, an A1th time unit after the current time unit, A2 continuous time units starting from the current time unit, or A3 continuous time units after the current time unit, where A1, A2, and A3 are integers greater than or equal to 1, and A1, A2, and A3 are determined according to a pre-agreed rule or a configuration of high-layer signaling or an indication field in the downlink control channel.

[0140] The time-domain resource indicated by the indication field includes one or more of the following information:

[0141] The number of symbols, the position of symbols, the number of mini-slots, the position of mini-slots, the number of slots, the position of slots, the number of subframes, and the position of subframes.

[0142] The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

[0143] The uplink and downlink resource division of the target time unit in which the target transmission indicated by the indication field is located, specifically includes:

[0144] Resource information of downlink resources in the target time unit in which the target transmission is located, or resource information of uplink resources in the target time unit in which the target transmission is located, or at least two of the resource information of downlink resources, the resource information of uplink resources, and resource information of a guard period GP in the target time unit in which the target transmission is located, where the resource information includes resource size and / or position; or,

[0145] The structure type of the target time unit corresponding to the downlink control channel.

[0146] The structure type includes at least one of the following structure types:

[0147] a first structure type in which all symbols or mini-slots or time slots or subframes in the target time unit are used for uplink transmission, a second structure type in which all symbols or mini-slots or time slots or subframes in the target time unit are used for downlink transmission, and a third structure type in which a first part of symbols or mini-slots or time slots or subframes in the target time unit are used for uplink transmission and a second part of symbols or mini-slots or time slots or subframes in the target time unit are used for downlink transmission.

[0148] wherein the target time unit is a predefined or configured unit containing D1 subframes, D2 time slots, D3 mini-slots or D4 symbols, wherein D1, D2, D3 and D4 are integers greater than or equal to 1.

[0149] The embodiments of the present application have the following beneficial effects:

[0150] The above technical solution of the embodiments of the present application receives a downlink control channel carrying an indication field, 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 resource division of a target time unit in which 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 field; and the target transmission is performed on the time domain resources, thereby achieving the purpose of performing transmission in a variable time slot structure, and further solving the problem that the prior art does not provide how to perform transmission in a variable time slot structure. BRIEF DESCRIPTION OF DRAWINGS

[0151] Figure 1 The first work flow chart of the data transmission method of the embodiments of the present application is shown in FIG. 1.

[0152] Figure 2 The second work flow chart of the data transmission method of the embodiments of the present application is shown in FIG. 2.

[0153] Figure 3 The first transmission schematic diagram of the data transmission method of the embodiments of the present application is shown in FIG. 3.

[0154] Figure 4 The second transmission schematic diagram of the data transmission method of the embodiments of the present application is shown in FIG. 4.

[0155] Figure 5 The third transmission schematic diagram of the data transmission method of the embodiments of the present application is shown in FIG. 5.

[0156] Figure 6 The first structure block diagram of the terminal of the embodiments of the present application is shown in FIG. 6.

[0157] Figure 7 The second structure block diagram of the terminal of the embodiments of the present application is shown in FIG. 7.

[0158] Figure 8A first structural block diagram of a base station of an embodiment of the present application;

[0159] Figure 9 A second structural block diagram of a base station of an embodiment of the present application. DETAILED DESCRIPTION

[0160] In order to make the technical problems, technical solutions and advantages of the present application clearer, the following will be described in detail with specific embodiments and drawings.

[0161] The data transmission method of the embodiment of the present application determines the time domain resource of the target transmission corresponding to the downlink control channel according to the indication field used for indicating the time domain resource of the target transmission corresponding to the downlink control channel and / or the uplink-downlink resource division of the target time unit where the target transmission is located, and then realizes the target transmission on the determined time domain resource.

[0162] First embodiment

[0163] As shown in Figure 1 The embodiment of the present application provides a data transmission method applied to a terminal, comprising:

[0164] Step 101: receiving a downlink control channel carrying an indication field, the indication field being used for indicating the time domain resource of the target transmission corresponding to the downlink control channel and / or the uplink-downlink resource division of the target time unit where the target transmission is located.

[0165] In this step, the downlink control channel is a downlink control channel using uplink DCI format (i.e. a downlink control channel carrying uplink scheduling permission, i.e. uplink scheduling instruction UL grant) and / or a downlink control channel using downlink DCI format (i.e. a downlink control channel carrying downlink scheduling permission, i.e. downlink scheduling instruction DL grant, including a downlink control channel indicating short downlink semi-persistent scheduling SPS resource release).

[0166] Here, the time domain resource of the target transmission corresponding to the downlink control channel is obtained by receiving the downlink control channel carrying the indication field.

[0167] Step 102: determining the time domain resource of the target transmission corresponding to the downlink control channel according to the indication field.

[0168] In this step, the target transmission corresponding to the downlink control channel specifically comprises:

[0169] If a format of DCI used by the downlink control channel is an uplink DCI format, a target transmission corresponding to the downlink control channel is an uplink shared channel transmission scheduled by the downlink control channel; or, if the format of DCI used by the downlink control channel is a downlink DCI format, the target transmission corresponding to the downlink control channel is a downlink shared channel transmission scheduled by the downlink control channel; or, if the format of DCI used by the downlink control channel is a downlink DCI format, the target transmission corresponding to the downlink control channel is ACK / NACK feedback corresponding to the downlink shared channel transmission scheduled by the downlink control channel or ACK / NACK feedback corresponding to the downlink control channel.

[0170] The target time unit is one of the following time units: a current time unit in which the downlink control channel transmission is located, an A1th time unit after the current time unit, A2 consecutive time units starting from the current time unit, or A3 consecutive time units after the current time unit, where A1, A2, and A3 are integers greater than or equal to 1, and A1, A2, and A3 are determined according to a pre-agreed rule or determined according to configuration of high layer signaling or determined according to an indication field in the downlink control channel.

[0171] Further, the time domain resource indicated by the indication field includes one or more of the following information:

[0172] The number of symbols, the symbol position, the number of mini-slots, the mini-slot position, the number of slots, the slot position, the number of subframes, and the subframe position.

[0173] The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

[0174] Further, the uplink / downlink resource division of the target time unit in which the target transmission indicated by the indication field is located specifically includes:

[0175] Resource information of downlink resources in the target time unit in which the target transmission is located, or resource information of uplink resources in the target time unit in which the target transmission is located, or at least two of the resource information of the downlink resources, the resource information of the uplink resources, and resource information of a guard period GP in the target time unit in which the target transmission is located, where the resource information includes resource size and / or position; or,

[0176] The structure type of the target time unit corresponding to the downlink control channel.

[0177] Wherein, the resource size refers to the number of symbols or mini-slots or slots or subframes contained, and the position refers to the index or number of symbols or mini-slots or slots or subframes contained.

[0178] Wherein, the structure type includes at least one of the following structure types:

[0179] The first structure type in which all symbols or mini-slots in the target time unit are used for uplink transmission, the second structure type in which all symbols or mini-slots in the target time unit are used for downlink transmission, and the third structure type in which a first part of symbols or mini-slots in the target time unit are used for uplink transmission, and a second part of symbols or mini-slots in the target time unit are used for downlink transmission.

[0180] Further, the target time unit is a predefined or configured unit containing D1 subframes, D2 slots, D3 mini-slots or D4 symbols, wherein D1, D2, D3 and D4 are integers greater than or equal to 1.

[0181] In specific embodiments of the present application, when the downlink control channel is a downlink control channel using uplink DCI format, the transmission corresponding to the downlink control channel is: uplink shared channel transmission scheduled by the uplink control channel, and the uplink shared channel scheduled by the uplink control channel is transmitted in the current time unit or the A1th time unit after the current time unit or the continuous A2 time units starting from the current time unit or the continuous A3 time units after the current time unit, A1, A2 and A3 are integers greater than or equal to 1, A1, A2 and A3 are predefined or configured, or A1, A2 and A3 are determined according to the indication field in the downlink control channel using uplink DCI format, and the current time unit is the time unit in which the downlink control channel is transmitted.

[0182] When the downlink control channel is a downlink control channel using downlink DCI format:

[0183] 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 ACK / NACK feedback transmission corresponding to the downlink control channel itself, the ACK / NACK feedback being transmitted in the current time unit or the B1th time unit after the current time unit or the continuous B2 time units starting from the current time unit or the continuous B3 time units after the current time unit, B1, B2, B3 being integer values greater than or equal to 1, B1, B2, B3 being pre-agreed or configured, or B1, B2, B3 being determined according to the indication field in the downlink control channel using the downlink DCI format, the current time unit being the time unit in which the downlink control channel is transmitted; or,

[0184] The transmission corresponding to the downlink control channel is the downlink shared channel transmission scheduled by the downlink control channel, the downlink shared channel being transmitted in the current time unit or the C1th time unit after the current time unit or the continuous C2 time units starting from the current time unit or the continuous C3 time units after the current time unit, C1, C2, C3 being integer values greater than or equal to 1, C1, C2, C3 being pre-agreed or configured, or C1, C2, C3 being determined according to the indication field in the downlink control channel using the downlink DCI format, the current time unit being the time unit in which the downlink control channel is transmitted.

[0185] The above time unit is defined as D1 subframes, or D2 slots, or D3 mini-slots, or D4 symbols, wherein D1, D2, D3, D4 are integers greater than or equal to 1.

[0186] The symbol in the embodiment of the present application can be specifically Orthogonal Frequency Division Multiplexing (OFDM) or Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbol. Of course, it can also be other orthogonal multiple access symbols, such as Pattern Division Multiple Access (PDMA) symbol, Sparse Code Multiplexing Access (SCMA) symbol, Filtered Orthogonal Frequency Division Multiplexing (F-OFDM) symbol, Non-Orthogonal Multiple Access (NOMA) symbol, Cyclic Prefix-OFDM (CP-OFDM) symbol, etc.

[0187] Further, when the indication field is only used to indicate the time domain resource of the target transmission corresponding to the downlink control channel;

[0188] The step 102 specifically includes: taking the time domain resource indicated by the indication field as the time domain resource of the target transmission corresponding to the downlink control channel.

[0189] Here, the indication field is used to indicate the time domain resource of the target transmission corresponding to the downlink control channel, and the time domain resource specifically represents one or more combinations of the number of symbols, the position of symbols, the number of slots, the position of slots, the number of mini-slots, the position of mini-slots, the number of subframes, and the position of subframes.

[0190] When the indication field only indicates the time domain resource of the transmission corresponding to the downlink control channel, the time domain resource of the transmission corresponding to the downlink control channel is determined as the time domain resource indicated by the indication field; that is, at this time, the transmission is performed according to the position / number of subframes or slots or mini-slots or symbols indicated by the indication field, regardless of the uplink / downlink resource division in the time unit where the transmission is located.

[0191] That is, when the downlink control channel is used to schedule uplink shared channel transmission, the uplink shared channel is transmitted in the time unit (possibly containing multiple time units) of its transmission according to the subframe or time slot or min-slot or symbol position / number indicated by the indication field; when the downlink control channel is used to schedule downlink shared channel transmission, the downlink shared channel is transmitted in the time unit (possibly containing multiple time units) of its transmission according to the subframe or time slot or min-slot or symbol position / number indicated by the indication field; when the downlink control channel scheduled downlink shared channel or the downlink control channel itself needs to transmit ACK / NACK feedback information, the ACK / NACK feedback information is transmitted in the time unit (possibly containing multiple time units) of its transmission according to the subframe or time slot or min-slot or symbol position / number indicated by the indication field.

[0192] Further, when the above-mentioned indication field is only used to indicate the uplink and downlink resource division of the target time unit where the target transmission is located;

[0193] The above-mentioned step 102 specifically comprises: determining the uplink resource and / or downlink resource of the target time unit where the target transmission is located according to the indication field; taking all or part of the uplink resource or the downlink resource as the time domain resource of the target transmission; or taking all or part of the resource pre-agreed or configured for transmitting data in the uplink resource or downlink resource as the time domain resource of the target transmission.

[0194] If the downlink control channel uses the uplink DCI format, at this time, only the uplink resource in the target time unit can be determined according to the indication information, or the uplink and downlink resources in the target time unit can be determined at the same time; if the downlink control channel uses the downlink DCI format, and the target transmission is the downlink shared channel scheduled by the downlink control channel, at this time, only the downlink resource in the target time unit can be determined according to the indication information, or the uplink and downlink resources in the target time unit can be determined at the same time; if the downlink control 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, only the uplink resource in the target time unit can be determined according to the indication information, or the uplink and downlink resources in the target time unit can be determined at the same time.

[0195] Here, the uplink and downlink resource division specifically refers to at least two of the following: the number of symbols occupied by the downlink resource, the number of symbols occupied by the uplink resource, and the number of symbols occupied by the GP in the time unit;

[0196] Or the uplink and downlink resource division is specifically: a structure type of the time unit, the structure type including one or more of the following structure types: full uplink (i.e., all symbols in the time unit are uplink), full downlink (i.e., all symbols in the time unit are downlink), and a structure type containing both uplink and downlink (i.e., part of the symbols in the time unit are uplink, part of the symbols are downlink, and the remaining symbols are GP); wherein the structure type containing both uplink and downlink can be further divided into a structure type in which uplink is dominant (i.e., most of the symbols in the time unit are uplink) or a structure type in which downlink is dominant (i.e., most of the symbols in the time unit are downlink);

[0197] For example, indicating that the time unit is one of the structure types of full uplink, full downlink, or containing both uplink and downlink; wherein a plurality of structure types containing both uplink and downlink can be predefined or configured, each structure type corresponding to a different uplink and downlink allocation ratio (i.e., containing different numbers of uplink and downlink symbols), or the uplink and downlink allocation ratio of the structure type containing both uplink and downlink can be dynamically adjusted (e.g., dynamically determining the size of GP according to the interference of neighboring cells, TA demand, etc., thereby dynamically adjusting the size of the uplink region and / or the downlink region);

[0198] For another example, indicating that the time unit is one of a plurality of predefined or configured structure types containing both uplink and downlink; wherein each of the plurality of predefined or configured structure types containing both uplink and downlink corresponds to a different uplink and downlink allocation ratio (i.e., containing different numbers of uplink and downlink symbols);

[0199] For another example, indicating that the time unit is one of the structure types of full uplink, full downlink, uplink dominant, or downlink dominant; wherein a plurality of uplink dominant and / or downlink dominant structure types can be predefined or configured, each structure type corresponding to a different uplink and downlink allocation ratio (i.e., containing different numbers of uplink and downlink symbols).

[0200] When the indication field only indicates the uplink and downlink resource division of the time unit in which the transmission corresponding to the downlink control channel is located, the time domain resource of the transmission corresponding to the downlink control channel is determined to be all or part of the resource in the corresponding resource region in the uplink and downlink resource division indicated by the indication field;

[0201] That is, when the downlink control channel is used to schedule uplink shared channel transmission, the uplink shared channel is transmitted on all the size of the uplink region determined according to the uplink-downlink resource division of the target time unit indicated by the indication field or the part of the time domain resource agreed or configured in the time unit (may contain multiple time units) of its transmission; when the downlink control channel is used to schedule downlink shared channel transmission, the downlink shared channel is transmitted on all the size of the downlink region determined according to the uplink-downlink resource division of the target time unit indicated by the indication field or the part of the time domain resource agreed or configured for transmitting data in the time unit (may contain multiple time units) of its transmission; when the downlink shared channel scheduled by the downlink control channel or the downlink control channel itself needs to transmit ACK / NACK feedback information, the ACK / NACK feedback information is transmitted on all the size of the uplink region determined according to the uplink-downlink resource division of the target time unit indicated by the indication field or the part of the time domain resource agreed or configured in the time unit (may contain multiple time units) of its transmission.

[0202] Further, when the indication field is used to indicate the time domain resource of the target transmission corresponding to the downlink control channel and the uplink-downlink resource division of the target time unit where the target transmission is located;

[0203] The above step 102 specifically includes: taking the time domain resource indicated by the indication field as the time domain resource of the target transmission corresponding to the downlink control channel; or,

[0204] According to the indication field, determine the uplink resource and / or downlink resource of the target time unit where the target transmission is located, take all or part of the resources in the uplink resource or the downlink resource as the time domain resource of the target transmission; or take all or part of the resources in the uplink resource or the downlink resource agreed or configured for transmitting data as the time domain resource of the target transmission; or,

[0205] According to the time domain resource indicated by the indication field and the uplink-downlink resource division of the target time unit, determine the time domain resource of the target transmission.

[0206] Further, according to the time domain resource indicated by the indication field and the uplink-downlink resource division of the target time unit, the step of determining the time domain resource of the target transmission includes:

[0207] Take all or part of the time domain resource in the uplink resource or the downlink resource determined according to the indication field, and the maximum value, minimum value, intersection or union of the time domain resource indicated by the indication field, as the time domain resource of the target transmission; or,

[0208] The maximum, minimum, intersection or union of all or part of time domain resources in the pre-agreed or configured resource for transmitting data in the uplink resource or the downlink resource and the time domain resource indicated by the indication field are taken as the time domain resource of the target transmission; or

[0209] 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 size of the region for transmitting data in the pre-agreed or configured uplink resource or downlink resource determined according to the indication field, the time domain resource indicated by the indication field is taken as the time domain resource of the target transmission; or

[0210] If the time domain resource indicated by the indication field exceeds the size of the uplink resource or the downlink resource determined according to the indication field, the uplink resource or the downlink resource is taken as the time domain resource of the target transmission, or the time domain resource indicated by the indication field is taken as the time domain resource of 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 field is taken as the time domain resource of the target transmission; or

[0211] If the time domain resource indicated by the indication field exceeds the size of the region for transmitting data in the pre-agreed or configured uplink resource or downlink resource determined according to the indication field, the region for transmitting data in the pre-agreed or configured uplink resource or downlink resource is taken as the time domain resource of the target transmission, or the time domain resource indicated by the indication field is taken as the time domain resource of the target transmission, or the maximum, minimum, intersection or union of the region for transmitting data in the pre-agreed or configured uplink resource or downlink resource and the time domain resource indicated by the indication field is taken as the time domain resource of the target transmission.

[0212] In specific embodiments of the present application, when the indication field indicates both the time domain resource of the transmission corresponding to the downlink control channel and the uplink-downlink resource division of the time unit in which the transmission corresponding to the downlink control channel is located, the time domain resource is determined according to only one indication content, or the time domain resource is determined by simultaneously referring to both indication contents.

[0213] For example, the time domain resource of the transmission corresponding to the downlink control channel is determined as the time domain resource indicated by the indication field, which is the same as above.

[0214] Alternatively, the time domain resource of the transmission corresponding to the downlink control channel is determined as all or part of the resource in the corresponding resource region in the uplink-downlink resource division indicated by the indication field, which is the same as above.

[0215] Alternatively, the time domain resource of the transmission corresponding to the downlink control channel is determined as the maximum or minimum value of the time domain resource indicated by the indication field and the time domain resource in the corresponding resource region in the uplink resource partition indicated by the indication field.

[0216] That is, when the downlink control channel is used to schedule uplink shared channel transmission, the uplink shared channel transmits in the time unit (which can contain multiple time units) of its transmission according to the maximum or minimum value or union or intersection of the specific time domain resource indicated by the indication field and the time domain resource of the uplink region determined by the uplink-downlink resource partition indicated by the indication field; when the downlink control channel is used to schedule downlink shared channel transmission, the downlink shared channel transmits in the time unit (which can contain multiple time units) of its transmission according to the maximum or minimum value or union or intersection of the specific time domain resource indicated by the indication field and the time domain resource of the downlink region determined by the uplink-downlink resource partition indicated by the indication field; when the downlink shared channel scheduled by the downlink control channel or the downlink control channel itself needs to transmit ACK / NACK feedback information, the ACK / NACK feedback information transmits in the time unit (which can contain multiple time units) of its transmission according to the maximum or minimum value or union or intersection of the specific time domain resource indicated by the indication field and the entire time domain resource or the pre-agreed part of the time domain resource of the uplink region determined by the uplink-downlink resource partition indicated by the indication field.

[0217] Step 103: performing the target transmission on the time domain resource.

[0218] Specifically, when the downlink control channel is a downlink control channel using uplink DCI format, the terminal transmits the uplink shared channel scheduled by the downlink control channel on the time domain resource;

[0219] When the downlink control channel is a downlink control channel using downlink DCI format, 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 downlink DCI format, the terminal transmits the ACK / NACK feedback information corresponding to the downlink shared channel scheduled by the downlink control channel or the ACK / NACK feedback information corresponding to the downlink control channel on the time domain resource.

[0220] In addition, in the above process, the terminal can also detect indication information in each or specific (for example, pre-configured or agreed time unit of sending indication information) time unit, which is used to indicate the uplink-downlink resource partition in one or more time units;

[0221] If the uplink-downlink resource partitioning indicated by the indication information detected by the terminal is inconsistent 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 is used as the criterion;

[0222] When the indication field in the downlink control channel indicates a time domain resource, if the time domain resource starts from the first symbol of a time unit, the time unit is determined to be a full uplink, or if the time domain resource spans two time units, the second time unit is determined to be a full uplink.

[0223] When the terminal determines that the target time unit is a full uplink according to the indication field (for example, the time domain resource occupies a time unit, or is determined to be a full uplink according to the uplink-downlink resource partitioning), the terminal can not detect indication information for indicating uplink-downlink resource partitioning in the target time unit, so as to achieve the purpose of power saving.

[0224] It should be noted that if the indication field in the downlink control channel can indicate the time domain resource of the uplink shared channel, the time domain resource indicated by the indication field in the downlink control channel can be less than, equal to, or greater than the size of the uplink region determined according to the indication information; when greater than the size of the uplink region determined according to the indication information, the transmission can always be performed according to the size of the uplink region, or always be performed according to the time domain resource indicated by the indication field in the downlink control channel, or take the maximum or minimum of the size of the uplink region and the time domain resource indicated by the indication field in the downlink control channel.

[0225] The data transmission method of the embodiment of the application comprises the following steps: receiving a downlink control channel carrying an indication field, the indication field being used for indicating time domain resources of a target transmission corresponding to the downlink control channel and / or uplink-downlink resource partitioning of a target time unit in which the target transmission is located; determining the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field; and performing the target transmission on the time domain resources, so as to achieve the purpose of performing transmission in a variable time slot structure, and thus solve the problem that the prior art does not give how to perform transmission in a variable time slot structure.

[0226] Second embodiment

[0227] As Figure 2 shown, the embodiment of the application further provides a data transmission method, applied to a base station, comprising the following steps:

[0228] Step 201: transmitting a downlink control channel carrying an indication field, the indication field being used for indicating time domain resources of a target transmission corresponding to the downlink control channel and / or uplink-downlink resource partitioning of a target time unit in which the target transmission is located.

[0229] In this step, the downlink control channel is a downlink control channel using uplink DCI format (i.e., a downlink control channel carrying uplink scheduling permission, i.e., uplink scheduling instruction UL grant) and / or a downlink control channel using downlink DCI format (i.e., a downlink control channel carrying downlink scheduling permission, i.e., downlink scheduling instruction DL grant, including a downlink control channel indicating release of short downlink semi-persistent scheduling SPS resource).

[0230] Step 202: According to the indication field, the time domain resource of the target transmission corresponding to the downlink control channel is determined.

[0231] This step is the same as step 102 described above, and will not be repeated here.

[0232] Step 203: The target transmission is performed on the time domain resource.

[0233] This step is the same as step 103 described above, and will not be repeated here. For the uplink shared channel, the base station is the receiving behavior, for the downlink shared channel, the base station is the transmitting behavior, and for the ACK / NACK feedback information, the base station is the receiving behavior.

[0234] The data transmission method of the embodiment of the application transmits a downlink control channel carrying an indication field, the indication field is used to indicate the time domain resource of the target transmission corresponding to the downlink control channel and / or the uplink / downlink resource division 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; and the target transmission is performed on the time domain resource, which achieves the purpose of transmission in a variable slot structure, and further solves the problem that the prior art does not give how to perform transmission in a variable slot structure.

[0235] Third embodiment

[0236] This embodiment is a specific application example of the data transmission method of the application.

[0237] The embodiment of the application takes one slot as an example of a time unit, and assumes that one slot contains 7 symbols (orthogonal frequency division multiplexing OFDM or single carrier frequency division multiple access SC-FDMA symbols); of course, other length time unit definition methods are not excluded.

[0238] The specific implementation process of the data transmission method of the embodiment of the application is as follows.

[0239] Assume that the UL grant sent in the downlink region of the current time unit can schedule PUSCH transmission in the uplink region of the current time unit (i.e., the uplink processing latency of the terminal is sufficient; of course, this scheduling relationship may not be pre-agreed upon, but may be notified in the UL grant, such as directly notifying that PUSCH will be transmitted in the current, next, or several subsequent time units). The UL grant contains an indication field, which is used to indicate the time domain resources of the scheduled PUSCH.

[0240] Base station side:

[0241] like Figure 3 As shown, the base station sends a UL grant in a time unit to schedule the corresponding terminal to transmit PUSCH on the time domain resources indicated by the indication field of the UL grant in that time unit. 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 (i.e., both symbol position and symbol length are notified), or indicates that PUSCH1 is transmitted on 2 symbols (in this case, it can be assumed that it is the two symbols before the end position of the time unit, i.e., the last 2 symbols in the time unit, so that only the symbol length is not notified without notifying the symbol position). Of course, there can be other indication methods, such as including the slot number / number, the min-slot number / number, etc., and it can also indicate whether to transmit across adjacent slots, etc. Of course, the size of the time domain resources indicated by the UL grant can also be smaller than the size of the uplink area in the pre-configured or defined time unit, such as PUSCH2 scheduled by UL grant2 in time unit i+1.

[0242] It should be noted that the base station can pre-divide a downlink and uplink area for a time unit based on prior information such as scheduling requirements. The PUSCH time domain resources indicated by the indication field in the UL grant sent by the base station need to be included in this uplink area. Of course, the base station can also choose not to pre-divide, but flexibly indicate in the UL grant where the PUSCH is transmitted according to the actual scheduling requirements, thereby flexibly adjusting the size of the uplink area.

[0243] On the time-domain resources indicated by the indication field in the aforementioned UL grant, the PUSCH sent by the receiving terminal is based on the scheduling information (such as frequency-domain resources, MCS, etc.) in the UL grant.

[0244] Terminal side:

[0245] The terminal detects the UL grant in each time unit, when receiving the UL grant, determines the time domain resource of the scheduled PUSCH according to the indication field in the UL grant (the specific way is the same as above), and then transmits the PUSCH on the corresponding time domain resource in the time unit according to the scheduling information (such as frequency domain resource, MCS level, etc.) in the UL grant.

[0246] Fourth embodiment

[0247] This embodiment is another specific application example of the data transmission method of the application.

[0248] The embodiment of the application takes one slot as an example of a time unit, assuming that one slot contains 7 symbols (orthogonal frequency division multiplexing OFDM or single carrier frequency division multiple access SC-FDMA symbols); of course, other length time unit definition methods are not excluded.

[0249] The specific implementation process of the data transmission method of the embodiment of the application is as follows.

[0250] Suppose that the UL grant sent in the downlink area in the current time unit can schedule the PUSCH transmission in the uplink area of the next time unit (of course, this scheduling relationship can not be pre-agreed, but can be notified in the UL grant, for example, directly notifying the PUSCH to be transmitted in the current or next or several subsequent time units), the UL grant contains an indication field, which is used to indicate the time domain resource of the scheduled PUSCH.

[0251] Base station side:

[0252] For example Figure 4As shown, the base station sends UL grant in a time unit, for scheduling corresponding terminal to transmit PUSCH on time domain resource indicated by indication field in UL grant in next time unit or multiple time units starting from next time unit; for example, UL grant1 is sent in time unit i, and indication field in UL grant1 indicates to transmit PUSCH1 on 6th and 7th symbol in next time unit (i.e. both symbol position and symbol length are informed), or indicates to transmit PUSCH1 on 2 symbols (at this time, it can be defaulted that the 2 symbols are the last 2 symbols in the time unit, so that the symbol position can not be informed, and only the symbol length is informed), of course, there can be other indication manners, for example, containing time slot number / quantity, min-slot number / quantity, etc., and whether to transmit across adjacent time slots, etc. can also be indicated; the base station can also send UL grant2 in time unit i, to schedule PUSCH2 to start from 6th symbol in time unit i+1 and transmit continuously for 9 symbols, at this time, the terminal can directly judge that time unit i+2 is full uplink, wherein, the indication field in UL grant2 can directly indicate that PUSCH2 starts from 6th symbol in time unit i+1 and has a length of 9 symbols, so that PUSCH2 transmits across time units i+1 and i+2, the indication field in UL grant2 can also only inform that PUSCH2 transmits across two time units, so that it is defaulted that PUSCH2 occupies all uplink symbols in time unit i+1 and time unit i+2 to transmit; the base station can also send UL grant3 in time unit i+1, to schedule to transmit PUSCH3 from the first symbol in time unit i+2, at this time, the terminal can directly judge that time unit i+2 is full uplink, the indication field in UL grant3 can directly inform that PUSCH3 starts from the first symbol in time unit i+2, so that it is defaulted to occupy one time unit to transmit, the indication field in UL grant3 can also inform that PUSCH3 occupies 7 symbols to transmit, so that it is defaulted to occupy one time unit, i.e. to start from the first symbol and end at the last symbol; of course, PUSCH1 can also be scheduled to occupy part of symbols (e.g. only the last symbol) in uplink region in time unit i+1 to transmit, PUSCH2 can also be scheduled to occupy part of symbols (e.g. from the last symbol in the time unit) in uplink region in time unit i+1 and / or part of symbols in time unit i+2 to transmit, and PUSCH3 can also be scheduled to only occupy part of symbols in time unit i+2 to transmit;

[0253] It should be noted that the base station can pre-divide the downlink region and the uplink region of a time unit according to prior information such as scheduling requirements, and the PUSCH time domain resource indicated by the indication field in the UL grant needs to be contained in the uplink region; of course, the base station can also not pre-divide, but flexibly indicate in the UL grant which time domain position the PUSCH transmits, so as to flexibly adjust the size of the uplink region;

[0254] On the time domain resource indicated by the indication field in the UL grant, the PUSCH transmitted by the terminal is received according to the scheduling information (such as frequency domain resource, MCS, etc.) in the UL grant.

[0255] Terminal side:

[0256] As shown in Figure 4 , the UL grant is detected in each time unit, when the 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 the PUSCH is transmitted on the corresponding time domain resource in the time unit according to the scheduling information (such as frequency domain resource, MCS level, etc.) in the UL grant.

[0257] Fifth embodiment

[0258] This embodiment is another specific application example of the data transmission method of the application.

[0259] The embodiment of the application takes a slot as an example, assuming that a slot contains 7 symbols (orthogonal frequency division multiplexing OFDM or single carrier frequency division multiple access SC-FDMA symbols); of course, other length of time unit definition method is not excluded.

[0260] The specific implementation process of the data transmission method of the embodiment of the application is as follows.

[0261] It is assumed that the UL grant transmitted in the downlink region of the current time unit can schedule the PUSCH transmission in the uplink region of the current or next time unit (different terminals can maintain different scheduling relationships, of course, this scheduling relationship can not be pre-agreed, but can be notified in the UL grant, for example, directly notifying the PUSCH to transmit in the current or next or several time units), the UL grant contains an indication field, which is used to indicate the uplink resource division of the time unit where the scheduled PUSCH transmission is located.

[0262] Base station side:

[0263] As shown in Figure 5As shown, the base station sends an UL grant in a time unit, for scheduling the corresponding terminal to transmit PUSCH in the next time unit or multiple time units starting from the next time unit, and the transmission time domain resource of the PUSCH is determined according to the uplink-downlink resource division of the time unit indicated by the indication field in the UL grant; for example, UL grant 1 is sent in time unit i, for scheduling the terminal to transmit PUSCH 1 in time unit i+1, the indication field indicates the uplink-downlink resource division of the next time unit i+1, which can directly indicate at least two of the number of symbols of the downlink region, the number of symbols of the uplink region, and the number of symbols of the GP, or can indicate the structure type of the predetermined time unit, such as the predetermined full uplink structure, the downlink 4-symbol+uplink 2-symbol structure (1-symbol GP), the downlink 2-symbol+uplink 4-symbol structure (1-symbol GP), etc., and then according to the indication information of the indication field, it is determined that the uplink-downlink division of time unit i+1 is downlink 6-symbol+uplink 2-symbol, and it is determined that the UL grant 1 schedules the PUSCH 1 to occupy all symbols in the uplink region of time unit i+1 for transmission, i.e., occupies the 6th and 7th symbols (i.e., the last 2 symbols) in time unit i+1 for transmission; the base station can send UL grant 2 in time unit i+1, for scheduling the terminal to transmit PUSCH 2 in time unit i+2, and the indication field indicates the uplink-downlink resource division of the next time unit i+2, and according to the indication manner similar to that in the UL grant 1, it is determined that time unit i+2 is full uplink according to the indication field in the UL grant 2, and it is determined that the UL grant 2 schedules the PUSCH 2 to be transmitted on all symbols in time unit i+2;

[0264] Furthermore, if different terminals can maintain different scheduling relationships, for example, there might be a type of terminal that performs cross-time-unit scheduling according to ULgrant1 and UL grant2, and another type of terminal that can perform intra-time-unit scheduling according to ULgrant3. That is, the base station can also send ULgrant3 in time unit i+1, scheduling the transmission of PUSCH3 to begin in the uplink region of time unit i+1. Following a similar indication method to UL grant1, and determining that time unit i+2 is entirely uplink based on the indication field in UL grant3, one implementation is that the terminal always assumes that the PUSCH3 scheduled by UL grant3 is transmitted only in the uplink region of time unit i+1. For example, if this uplink region is two symbols, then PUSCH3 is always transmitted on the last two symbols of time unit i+1. Another implementation is that, since the terminal can determine that time unit i+2 is entirely uplink based on the indication field in UL grant3, it can default to the PUSCH3 scheduled by UL grant3 being transmitted on all symbols in time units i+1 and i+2. Yet another implementation is... The indication field in grant3 can further indicate whether PUSCH3 is transmitted across different time units or indicate the specific symbol position / number of PUSCH3 transmission (similar to the time domain resource indication in embodiment 1 / 2). The terminal can then determine whether PUSCH3 is transmitted only on 2 symbols in time unit i+1 or will be transmitted across time units i+1 and i+2, occupying 9 symbols.

[0265] Of course, if the indication field in each UL grant further includes information on the time domain resources indicating the PUSCH (such as the indication information in Example 1 / 2), then the number of symbols occupied by PUSCH1, 2, and 3 can be less than the number of symbols in the uplink region, that is, it does not occupy all the symbols contained in the uplink region in a time unit.

[0266] On the time-domain resources determined by the indication field in the UL grant, the PUSCH sent by the receiving terminal is based on the scheduling information (such as frequency-domain resources, MCS, etc.) in the UL grant.

[0267] Terminal side:

[0268] like Figure 5 As shown, UL grant is detected in each time unit. When UL grant is received, the time domain resource of the scheduled PUSCH is determined according to the indication field in UL grant (the specific method is the same as above). Then, according to the scheduling information in UL grant (such as frequency domain resource, MCS level, etc.), PUSCH is transmitted on the corresponding time domain resource in that time unit.

[0269] It should be noted that other scheduling relationships (i.e., the correspondence between the UL grant and the time unit in which the PUSCH transmission is located) or indication relationships of the indication field (i.e., the correspondence between the indication field and the uplink-downlink resource division of the indicated time unit) are also included in the present application. The scheduling relationship and the indication relationship of the indication field can also correspond to multiple time units. The various ways of scheduling relationship and the various indication relationships of the indication information can be combined with each other.

[0270] The above embodiments are only examples of the scheduling relationship of the UL grant and the indication relationship of the indication field included in the UL grant. When the UL grant and the PUSCH are replaced by the DL grant and the PDSCH, or replaced by the DL grant and the corresponding ACK / NACK feedback, the working mode is similar, and will not be described again.

[0271] Sixth embodiment

[0272] As shown in Figure 6 The embodiments of the present application also provide a terminal, which comprises:

[0273] The receiving module 601 is configured to receive a downlink control channel carrying an indication field, the indication field being used to indicate the time domain resource of a target transmission corresponding to the downlink control channel and / or the uplink-downlink resource division of a target time unit in which the target transmission is located.

[0274] The first determining module 602 is configured to determine the time domain resource of the target transmission corresponding to the downlink control channel according to the indication field.

[0275] The first transmission module 603 is configured to perform the target transmission on the time domain resource.

[0276] The terminal of the embodiments of the present application, wherein the indication field is only used to indicate the time domain resource of the target transmission corresponding to the downlink control channel.

[0277] The first determining module 602 comprises:

[0278] The first determining sub-module 6021 is configured to take the time domain resource indicated by the indication field as the time domain resource of the target transmission corresponding to the downlink control channel.

[0279] The terminal of the embodiments of the present application, wherein the indication field is only used to indicate the uplink-downlink resource division of the target time unit in which the target transmission is located.

[0280] The first determining module 602 comprises:

[0281] The second determining sub-module 6022 is configured to determine, according to the indication field, uplink resources and / or downlink resources of a target time unit in which the target transmission is located.

[0282] The third determining sub-module 6023 is configured to take all or part of the uplink resources or the downlink resources as time domain resources of the target transmission, or take all or part of resources in the uplink resources or the downlink resources that are pre-agreed or configured to be used for data transmission as the time domain resources of the target transmission.

[0283] The terminal of the embodiment of the application, the indication field is used to indicate time domain resources of target transmission corresponding to the downlink control channel and uplink and downlink resource division of a target time unit in which the target transmission is located.

[0284] The first determining module 602 includes:

[0285] The fourth determining sub-module 6024 is configured to take the time domain resources indicated by the indication field as the time domain resources of the target transmission corresponding to the downlink control channel, or

[0286] The fifth determining sub-module 6025 is configured to determine, according to the indication field, uplink resources and / or downlink resources of a target time unit in which the target transmission is located, take all or part of the uplink resources or the downlink resources as time domain resources of the target transmission, or take all or part of resources in the uplink resources or the downlink resources that are pre-agreed or configured to be used for data transmission as the time domain resources of the target transmission, or

[0287] The sixth determining sub-module 6026 is configured to determine, according to the time domain resources indicated by the indication field and the uplink and downlink resource division of the target time unit, the time domain resources of the target transmission.

[0288] The terminal of the embodiment of the application, the sixth determining sub-module 6026 includes:

[0289] The first determining unit 60261 is configured to take all or part of time domain resources in the uplink resources or the downlink resources determined according to the indication field, and a maximum value, a minimum value, an intersection or a union of the time domain resources indicated by the indication field, as the time domain resources of the target transmission, or

[0290] The second determining unit 60262 is configured to take all or part of time domain resources in the uplink resources or the downlink resources that are pre-agreed or configured to be used for data transmission, and a maximum value, a minimum value, an intersection or a union of the time domain resources indicated by the indication field, as the time domain resources of the target transmission, or

[0291] The third determination unit 60263 is configured to: if the size of 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 size of the region for data transmission in the uplink resource or the downlink resource determined according to the indication field, take the time domain resource indicated by the indication field as the time domain resource of the target transmission; or,

[0292] The fourth determination unit 60264 is configured to: if the size of the time domain resource indicated by the indication field exceeds the size of the uplink resource or the downlink resource determined according to the indication field, take the uplink resource or the downlink resource as the time domain resource of the target transmission, or take the time domain resource indicated by the indication field as the time domain resource of the target transmission, or take the maximum value, the minimum value, the intersection or the union of the uplink resource or the downlink resource and the time domain resource indicated by the indication field as the time domain resource of the target transmission; or,

[0293] The fifth determination unit 60265 is configured to: if the size of the time domain resource indicated by the indication field exceeds the size of the region for data transmission in the uplink resource or the downlink resource determined according to the indication field, take the region for data transmission in the uplink resource or the downlink resource as the time domain resource of the target transmission, or take the time domain resource indicated by the indication field as the time domain resource of the target transmission, or take the maximum value, the minimum value, the intersection or the union of the region for data transmission in the uplink resource or the downlink resource and the time domain resource indicated by the indication field as the time domain resource of the target transmission.

[0294] The terminal of the embodiment of the application, the target transmission corresponding to the downlink control channel specifically includes:

[0295] 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,

[0296] If the format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is the downlink shared channel transmission scheduled by the downlink control channel; or,

[0297] 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 transmission scheduled by the downlink control channel or the ACK / NACK feedback corresponding to the downlink control channel.

[0298] The terminal of the embodiment of the application, the target time unit is one of the following time units: a current time unit in which the downlink control channel is transmitted, an A1th time unit after the current time unit, A2 continuous time units starting from the current time unit, or A3 continuous time units after the current time unit, wherein A1, A2, and A3 are integers greater than or equal to 1, 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.

[0299] The terminal of the embodiment of the application, the time domain resource indicated by the indication field includes one or more of the following information:

[0300] The number of symbols, the symbol position, the number of mini-slots, the mini-slot position, the number of slots, the slot position, the number of subframes, and the subframe position.

[0301] The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

[0302] The terminal of the embodiment of the application, the uplink and downlink resource division of the target time unit in which the target transmission is located indicated by the indication field specifically includes:

[0303] Resource information of downlink resources in the target time unit in which the target transmission is located, or resource information of uplink resources in the target time unit in which the target transmission is located, or at least two of the resource information of the downlink resources, the resource information of the uplink resources, and resource information of a guard period GP in the target time unit in which the target transmission is located, wherein the resource information includes resource size and / or position; or

[0304] The structure type of the target time unit corresponding to the downlink control channel.

[0305] The terminal of the embodiment of the application, the structure type includes at least one of the following structure types:

[0306] The first structure type in which all symbols, mini-slots, slots, or subframes in the target time unit are used for uplink transmission, the second structure type in which all symbols, mini-slots, slots, or subframes in the target time unit are used for downlink transmission, and the third structure type in which a first part of symbols, mini-slots, slots, or subframes in the target time unit are used for uplink transmission, and a second part of symbols, mini-slots, slots, or subframes are used for downlink transmission.

[0307] The terminal of the embodiment of the present application, the target time unit is a unit containing D1 subframes, D2 time slots, D3 mini-slots or D4 symbols, which is predefined or configured, wherein D1, D2, D3 and D4 are integers greater than or equal to 1.

[0308] The terminal of the embodiment of the present application determines the time domain resource of the corresponding transmission based on the indication information in the scheduling signaling, so as to perform correct transmission.

[0309] Seventh embodiment

[0310] In order to better achieve the above-mentioned purpose, as Figure 7 The fifth embodiment of the present application also provides a terminal, which comprises: a processor 700; a memory 720 connected with the processor 700 through a bus interface, and a transceiver 710 connected with the processor 700 through a bus interface; the memory is used to store programs and data used by the processor when performing operations; the transceiver 710 is used to receive a downlink control channel; when the processor 700 calls and executes the programs and data stored in the memory 720, the following functional modules are realized:

[0311] A receiving module is configured to receive a downlink control channel carrying an indication field, wherein 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 resource division of a target time unit in which the target transmission is located.

[0312] A first determining module is configured to determine the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field.

[0313] A first transmission module is configured to perform the target transmission on the time domain resources.

[0314] The processor 700 is configured to read programs in the memory 720 and perform the following processes: receiving a downlink control channel carrying an indication field through the transceiver 710, wherein 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 resource division of a target time unit in which the target transmission is located; determining the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field; and performing the target transmission on the time domain resources.

[0315] The transceiver 710 is configured to receive and send data under the control of the processor 700.

[0316] Wherein, in Figure 7In particular embodiments, the bus architecture can include any number of interconnecting buses and bridges, depending on the specific application of processor 700 and the overall design constraints. The bus architecture can link various circuits of the various circuitries represented by the processor 700 and the memory 720, one or more processors and memories, respectively. The bus architecture can also link various other circuitries, such as peripheral devices, voltage regulators, and power management circuitries, which are well known in the art and thus, not further described herein. The bus interface provides an interface. The transceiver 710 can be a plurality of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatuses over a transmission medium. The user interface 730 can also be an interface capable of externally connecting the required devices for different user equipment, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0317] 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 in performing operations.

[0318] The terminal of the embodiment of the application, the processor 700 is used for sending a downlink control channel carrying an indication field through the transceiver 710, the indication field is used for indicating time domain resources of a target transmission corresponding to the downlink control channel and / or uplink resource division of a target time unit in which the target transmission is located; according to the indication field, the time domain resources of the target transmission corresponding to the downlink control channel are determined; and the target transmission is performed on the time domain resources, which realizes the purpose of performing transmission in a variable time slot structure, and further solves the problem that how to perform transmission in a variable time slot structure is not given in the prior art.

[0319] Eighth embodiment

[0320] As Figure 8 shown, the embodiment of the application further provides a base station, comprising:

[0321] The sending module 801 is used for sending a downlink control channel carrying an indication field, the indication field is used for indicating time domain resources of a target transmission corresponding to the downlink control channel and / or uplink resource division of a target time unit in which the target transmission is located;

[0322] The second determining module 802 is used for determining the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field;

[0323] The second transmission module 803 is used for performing the target transmission on the time domain resources.

[0324] The base station of the embodiment of the application, the indication field is only used for indicating the time domain resources of the target transmission corresponding to the downlink control channel;

[0325] The second determining module 802 comprises:

[0326] The seventh determining sub-module 8021 is configured to determine the time domain resource indicated by the indication field as the time domain resource of the target transmission corresponding to the downlink control channel.

[0327] The base station of the embodiment of the present application, the indication field is used to indicate the uplink-downlink resource division of the target time unit where the target transmission is located.

[0328] The second determining module 802 includes:

[0329] The eighth determining sub-module 8022 is configured to determine the uplink resource and / or the downlink resource of the target time unit where the target transmission is located according to the indication field.

[0330] The ninth determining sub-module 8023 is configured to determine all or part of the resources in the uplink resource or the downlink resource as the time domain resource of the target transmission, or determine all or part of the resources in the uplink resource or the downlink resource which are pre-agreed or configured to be used for data transmission as the time domain resource of the target transmission.

[0331] The base station of the embodiment of the present application, the indication field is used to indicate the uplink-downlink resource division of the target time unit where the target transmission is located.

[0332] The second determining module 802 includes:

[0333] The tenth determining sub-module 8024 is configured to determine the time domain resource indicated by the indication field as the time domain resource of the target transmission corresponding to the downlink control channel, or

[0334] The eleventh determining sub-module 8025 is configured to determine the uplink resource and / or the downlink resource of the target time unit where the target transmission is located according to the indication field, determine all or part of the resources in the uplink resource or the downlink resource as the time domain resource of the target transmission, or determine all or part of the resources in the uplink resource or the downlink resource which are pre-agreed or configured to be used for data transmission as the time domain resource of the target transmission, or

[0335] The twelfth determining sub-module 8026 is configured to determine the time domain resource of the target transmission according to the time domain resource indicated by the indication field and the uplink-downlink resource division of the target time unit.

[0336] The base station of the embodiment of the present application, the twelfth determining sub-module 8026 includes:

[0337] The sixth determining unit 80261 is configured to determine, as the time domain resource of the target transmission, a maximum value, a minimum value, an intersection or a union of all or part of time domain resources in the uplink resource or the downlink resource determined according to the indication information and the time domain resource indicated by the indication field; or

[0338] The seventh determining unit 80262 is configured to determine, as the time domain resource of the target transmission, a maximum value, a minimum value, an intersection or a union of all or part of time domain resources in the resource for data transmission in the uplink resource or the downlink resource pre-agreed or configured and the time domain resource indicated by the indication field; or

[0339] The eighth determining unit 80263 is configured to, if the size of 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 size of the region for data transmission in the uplink resource or the downlink resource determined according to the indication field, determine the time domain resource indicated by the indication field as the time domain resource of the target transmission; or

[0340] The ninth determining unit 80264 is configured to, if the size of the time domain resource indicated by the indication field exceeds the size of the uplink resource or the downlink resource determined according to the indication field, determine the uplink resource or the downlink resource as the time domain resource of the target transmission, or determine the time domain resource indicated by the indication field as the time domain resource of the target transmission, or determine a maximum value, a minimum value, an intersection or a union of the uplink resource or the downlink resource and the time domain resource indicated by the indication field as the time domain resource of the target transmission; or

[0341] The tenth determining unit 80265 is configured to, if the size of the time domain resource indicated by the indication field exceeds the size of the region for data transmission in the uplink resource or the downlink resource determined according to the indication field, determine the region for data transmission in the uplink resource or the downlink resource as the time domain resource of the target transmission, or determine the time domain resource indicated by the indication field as the time domain resource of the target transmission, or determine a maximum value, a minimum value, an intersection or a union of the region for data transmission in the uplink resource or the downlink resource and the time domain resource indicated by the indication field as the time domain resource of the target transmission.

[0342] The base station of the embodiment of the application, the target transmission corresponding to the downlink control channel specifically includes:

[0343] 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 an uplink shared channel transmission scheduled by the downlink control channel; or

[0344] 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 a downlink shared channel transmission scheduled by the downlink control channel; or,

[0345] 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 ACK / NACK feedback corresponding to a downlink shared channel scheduled by the downlink control channel or ACK / NACK feedback corresponding to the downlink control channel.

[0346] The base station of the embodiment of the application, the target time unit is one of the following time units: the current time unit in which the downlink control channel is transmitted, the A1th time unit after the current time unit, the continuous A2 time units starting from the current time unit, or the continuous A3 time units after the current time unit, wherein A1, A2, and A3 are integers greater than or equal to 1, A1, A2, and A3 are determined according to a pre-agreed rule or determined according to the configuration of high layer signaling or determined according to an indication field in the downlink control channel.

[0347] The base station of the embodiment of the application, the time domain resource indicated by the indication field includes one or more of the following information:

[0348] The number of symbols, the position of symbols, the number of mini-slots, the position of mini-slots, the number of slots, the position of slots, the number of subframes, and the position of subframes.

[0349] The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

[0350] The base station of the embodiment of the application, the uplink and downlink resource division of the target time unit in which the target transmission indicated by the indication field is located, specifically includes:

[0351] The resource information of the downlink resource 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 in which the target transmission is located, 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 period GP in the target time unit in which the target transmission is located, wherein the resource information includes resource size and / or position; or,

[0352] The structure type of the target time unit corresponding to the downlink control channel.

[0353] The base station of the embodiment of the application, the structure type includes at least one of the following structure types:

[0354] The first structure type, in which all symbols, mini-slots, time slots, or subframes in the target time unit are used for uplink transmission; the second structure type, in which all symbols, mini-slots, time slots, or subframes in the target time unit are used for downlink transmission; and the third structure type, in which a first portion of symbols, mini-slots, time slots, or subframes in the target time unit are used for uplink transmission, and a second portion of symbols, mini-slots, time slots, or subframes are used for downlink transmission.

[0355] In the base station of this embodiment of the invention, the target time unit is a predefined or configured unit containing D1 subframes, D2 time slots, D3 mini-slots or D4 symbols, wherein D1, D2, D3 and D4 are integers greater than or equal to 1.

[0356] The base station of this invention transmits a downlink control channel carrying an indication field, wherein 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 allocation of the target time unit in which 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 field; the target transmission is performed on the time domain resources, thereby achieving the purpose of transmission in a variable time slot structure, and thus solving the problem that the prior art does not provide how to transmit in a variable time slot structure.

[0357] Ninth Embodiment

[0358] To better achieve the above objectives, such as Figure 9 As shown, the seventh embodiment of the present invention also provides a base station, which includes: a processor 900; a memory 920 connected to the processor 900 via a bus interface; and a transceiver 910 connected to the processor 900 via a bus interface; the memory 920 is used to store programs and data used by the processor during operation; the transceiver 910 transmits data information or pilot signals, and also receives uplink control channels; when the processor 900 calls and executes the programs and data stored in the memory 920, it implements the following functional modules:

[0359] The transmitting module is used to transmit a downlink control channel carrying an indication field, wherein 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 allocation of the target time unit in which the target transmission is located;

[0360] The second determining module is used to determine the time-domain resources of the target transmission corresponding to the downlink control channel based on the indication domain.

[0361] A second transmission module is configured to perform the target transmission on the time domain resource.

[0362] The processor 900 is configured to read programs in the memory 920 and perform the following processes: sending, by the transceiver 910, a downlink control channel and indication information for indicating uplink and downlink resource division in a time unit; determining, according to the indication information, uplink and / or downlink resources in a target time unit corresponding to the downlink control channel, wherein the target time unit is a time unit in which a target transmission corresponding to the downlink control channel is located; determining time domain resources in the uplink and / or downlink resources in which the target transmission corresponding to the downlink control channel is located, and performing the target transmission in the time domain resources.

[0363] The transceiver 910 is configured to receive and send data under the control of the processor 900.

[0364] In the above description, Figure 9 The bus architecture can include any number of interconnecting buses and bridges, and the various circuitry representative of the processor(s) 900 and the memory 920 that are linked together by the bus architecture can be implemented as various combinations of processors, controllers, bridges, and memory components, depending on the needs of the particular application. For example, the bus architecture can include a memory management unit, such as that found in the Intel Pentium class processor, which can provide caching capabilities for the processor(s) 900. The bus architecture can further include various other circuitry not specifically shown or described herein, in connection with the disclosure of the various embodiments, such as control units, data forwarding units, and load / store units, which are well known in the art, and therefore, will not be further described herein. The bus interface provides an interface to the bus architecture. The transceiver 910 can be a plurality of elements, including a transmitter and a receiver, that provide means for communicating with various other apparatus over a transmission medium. The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 in executing its operations.

[0365] The processor 900 of the base station of the embodiments of the present application is configured to send, by the transceiver 910, a downlink control channel carrying an indication field, the indication field being 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 in which the target transmission is located; and determine, according to the indication field, the time domain resources of the target transmission corresponding to the downlink control channel, and perform the target transmission in the time domain resources, thereby achieving the purpose of performing transmission in a variable time slot structure, and further solving the problem that the prior art does not give how to perform transmission in a variable time slot structure.

[0366] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A data transmission method applied to a terminal, characterized in that, The method comprises the following steps: receiving a downlink control channel carrying an indication field, the indication field being used to indicate time domain resources of a target transmission corresponding to the downlink control channel and uplink-downlink resource division of a target time unit in which the target transmission is located; determining the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field; performing the target transmission on the time domain resources; wherein the indication field is used to indicate the time domain resources of the target transmission corresponding to the downlink control channel and the uplink-downlink resource division of the target time unit in which 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 field comprises: taking the time domain resources indicated by the indication field as the time domain resources of the target transmission corresponding to the downlink control channel; or determining uplink resources and / or downlink resources of the target time unit in which the target transmission is located according to the indication field, taking all or part of the uplink resources or the downlink resources as the time domain resources of the target transmission; or taking all or part of the resources in the uplink resources or the downlink resources which are pre-agreed or configured to be used for data transmission as the time domain resources of the target transmission; or determining the time domain resources of the target transmission according to the time domain resources indicated by the indication field and the uplink-downlink resource division of the target time unit; the step of determining the time domain resources of the target transmission according to the time domain resources indicated by the indication field and the uplink-downlink resource division of the target time unit comprises: taking the maximum value, the minimum value, the intersection or the union of all or part of the time domain resources in the uplink resources or the downlink resources determined according to the indication field and the time domain resources indicated by the indication field as the time domain resources of the target transmission; or taking the maximum value, the minimum value, the intersection or the union of all or part of the time domain resources in the resources in the uplink resources or the downlink resources which are pre-agreed or configured to be used for data transmission and the time domain resources indicated by the indication field as the time domain resources of the target transmission; or if the size of the time domain resources indicated by the indication field does not exceed the size of the uplink resources or the downlink resources determined according to the indication field, or does not exceed the size of the region in the uplink resources or the downlink resources determined according to the indication field which is pre-agreed or configured to be used for data transmission, taking the time domain resources indicated by the indication field as the time domain resources of the target transmission; or if the size of the time domain resources indicated by the indication field exceeds the size of the uplink resources or the downlink resources determined according to the indication field, taking the uplink resources or the downlink resources as the time domain resources of the target transmission, or taking the time domain resources indicated by the indication field as the time domain resources of the target transmission, or taking the maximum value, the minimum value, the intersection or the union of the uplink resources or the downlink resources and the time domain resources indicated by the indication field as the time domain resources of the target transmission; or If the time domain resource indicated by the indication field exceeds the size of the region pre-agreed or configured in the uplink resource or the downlink resource for transmitting data determined according to the indication field, the region pre-agreed or configured in the uplink resource or the downlink resource for transmitting data is taken as the time domain resource of the target transmission, or the time domain resource indicated by the indication field is taken as the time domain resource of the target transmission, or the maximum value, the minimum value, the intersection or the union of the region pre-agreed or configured in the uplink resource or the downlink resource for transmitting data and the time domain resource indicated by the indication field is taken as the time domain resource of the target transmission.

2. The data transmission method of claim 1, wherein, The target transmission corresponding to the downlink control channel specifically includes: If the format of the DCI used by the downlink control channel is an uplink DCI format, the target transmission corresponding to the downlink control channel is the uplink shared channel transmission scheduled by the downlink control channel; or, If the format of the DCI used by the downlink control channel is 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 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 ACK / NACK feedback corresponding to the downlink shared channel transmission scheduled by the downlink control channel or the ACK / NACK feedback corresponding to the downlink control channel.

3. The data transmission method of claim 1, wherein, The target time unit is one of the following time units: a current time unit in which the downlink control channel transmission is located, an A1th time unit after the current time unit, continuous A2 time units starting from the current time unit, or continuous A3 time units after the current time unit, wherein A1, A2 and A3 are 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 a high layer signaling or determined according to an indication field in the downlink control channel.

4. The data transmission method of claim 1, wherein, The time domain resource indicated by the indication field includes one or more of the following information: The number of symbols, the symbol position, the number of mini-slots, the mini-slot position, the number of slots, the slot position, the number of subframes, and the subframe position. The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

5. The data transmission method of claim 1, wherein, The uplink and downlink resource division of the target time unit in which the target transmission indicated by the indication field is located specifically includes: The resource information of the downlink resource 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 in which the target transmission is located, 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 period GP in the target time unit in which the target transmission is located, wherein the resource information includes resource size and / or position; or The structure type of the target time unit corresponding to the downlink control channel.

6. The data transmission method of claim 5, wherein, The structure type includes at least one of the following structure types: a first structure type in which all symbols or mini-slots or slots or subframes in the target time unit are used for uplink transmission, a second structure type in which all symbols or mini-slots or slots or subframes in the target time unit are used for downlink transmission, and a third structure type in which a first part of symbols or mini-slots or slots or subframes in the target time unit are used for uplink transmission and a second part of symbols or mini-slots or slots or subframes in the target time unit are used for downlink transmission.

7. The data transmission method of claim 1, wherein, The target time unit is a predefined or configured unit containing D1 subframes, D2 slots, D3 mini-slots or D4 symbols, where D1, D2, D3 and D4 are integers greater than or equal to 1.

8. A data transmission method applied to a base station, comprising: The method comprises: sending a downlink control channel carrying an indication field, the indication field being used to indicate time domain resources of a target transmission corresponding to the downlink control channel and uplink and downlink resource division of a target time unit in which the target transmission is located; determining the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field; performing the target transmission on the time domain resources; wherein 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; the step of determining the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field comprises: taking the time domain resources indicated by the indication field as the time domain resources of the target transmission corresponding to the downlink control channel; or determining the uplink and / or downlink resources of the target time unit in which the target transmission is located according to the indication field, taking all or part of the uplink or downlink resources as the time domain resources of the target transmission; or taking all or part of the resources in the uplink or downlink resources that are previously agreed or configured to be used for data transmission as the time domain resources of the target transmission; or determining the time domain resources of the target transmission according to the time domain resources indicated by the indication field and the uplink and downlink resource division of the target time unit; the step of determining the time domain resources of the target transmission according to the time domain resources indicated by the indication field and the uplink and downlink resource division of the target time unit comprises: taking all or part of the time domain resources in the uplink or downlink resources determined according to the indication field, and the maximum value, minimum value, intersection or union of the time domain resources indicated by the indication field, as the time domain resources of the target transmission; or taking all or part of the time domain resources in the uplink or downlink resources that are previously agreed or configured to be used for data transmission, and the maximum value, minimum value, intersection or union of the time domain resources indicated by the indication field, as the time domain resources of the target transmission; or If the size of 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 size of the region for transmitting data in the uplink resource or the downlink resource determined according to the indication field, the time domain resource indicated by the indication field is used as the time domain resource of the target transmission; or, If the size of the time domain resource indicated by the indication field exceeds the size of the uplink resource or the downlink resource determined according to the indication field, the uplink resource or the downlink resource is used as the time domain resource of the target transmission, or the time domain resource indicated by the indication field is used as the time domain resource of the target transmission, or the maximum value, the minimum value, the intersection or the union of the uplink resource or the downlink resource and the time domain resource indicated by the indication field is used as the time domain resource of the target transmission; or, If the size of the time domain resource indicated by the indication field exceeds the size of the region for transmitting data in the uplink resource or the downlink resource determined according to the indication field, the region for transmitting data in the uplink resource or the downlink resource determined according to the indication field is used as the time domain resource of the target transmission, or the time domain resource indicated by the indication field is used as the time domain resource of the target transmission, or the maximum value, the minimum value, the intersection or the union of the region for transmitting data in the uplink resource or the downlink resource determined according to the indication field and the time domain resource indicated by the indication field is used as the time domain resource of the target transmission.

9. The data transmission method of claim 8, wherein, The target transmission corresponding to the downlink control channel specifically includes: If the format of the DCI used by the downlink control channel is 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 format of the DCI used by the downlink control channel is the downlink DCI format, the target transmission corresponding to the downlink control channel is the downlink shared channel transmission scheduled by the downlink control channel; or, If the 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 transmission scheduled by the downlink control channel or the ACK / NACK feedback corresponding to the downlink control channel.

10. The data transmission method of claim 8, 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 A1th time unit after the current time unit, the continuous A2 time units starting from the current time unit, or the continuous A3 time units after the current time unit, wherein 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 the configuration of the high layer signaling, or determined according to the indication field in the downlink control channel.

11. The data transmission method of claim 8, wherein, The time domain resource indicated by the indication field includes one or more of the following information: The number of symbols, the symbol position, the number of mini-slots, the mini-slot position, the number of slots, the slot position, the number of subframes, and the subframe position. The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

12. The data transmission method of claim 8, wherein, The uplink and downlink resource division of the target time unit in which the target transmission is located, specifically includes: The resource information of the downlink resource 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 in which the target transmission is located; 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 period GP in the target time unit in which the target transmission is located, wherein the resource information includes resource size and / or position; or The structure type of the target time unit corresponding to the downlink control channel.

13. The data transmission method of claim 12, wherein, The structure type includes at least one of the following structure types: The first structure type in which all symbols, mini-slots, slots, or subframes in the target time unit are used for uplink transmission, the second structure type in which all symbols, mini-slots, slots, or subframes in the target time unit are used for downlink transmission, and the third structure type in which a first part of symbols, mini-slots, slots, or subframes in the target time unit are used for uplink transmission, and a second part of symbols, mini-slots, slots, or subframes are used for downlink transmission.

14. The data transmission method of claim 8, wherein, The target time unit is a unit containing D1 subframes, D2 slots, D3 mini-slots, or D4 symbols, wherein D1, D2, D3, and D4 are integers greater than or equal to 1.

15. A terminal, characterized by It includes: A receiving module configured to receive a downlink control channel carrying an indication field, the indication field being used to indicate the time domain resource of a target transmission corresponding to the downlink control channel and the uplink and downlink resource division of a target time unit in which the target transmission is located; A first determining module configured to determine the time domain resource of the target transmission corresponding to the downlink control channel according to the indication field; A first transmission module configured to perform the target transmission on the time domain resource. The indication field is used to indicate the time domain resource 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. The first determining module includes: A fourth determining submodule configured to take the time domain resource indicated by the indication field as the time domain resource of the target transmission corresponding to the downlink control channel; or A fifth determining submodule configured to determine the uplink and / or downlink resource of the target time unit in which the target transmission is located according to the indication field, take all or part of the uplink resource or the downlink resource as the time domain resource of the target transmission; or take all or part of the resource pre-agreed or configured for data transmission in the uplink resource or the downlink resource as the time domain resource of the target transmission; or a sixth determining sub-module, configured to determine time domain resources of the target transmission according to the time domain resources indicated by the indication field and uplink and downlink resource division of the target time unit; wherein the sixth determining sub-module comprises: a first determining unit, configured to take all or part of time domain resources in the uplink resource or the downlink resource determined according to the indication field, and a maximum value, a minimum value, an intersection or a union of the time domain resources indicated by the indication field, as the time domain resources of the target transmission; or a second determining unit, configured to take all or part of time domain resources in the uplink resource or the downlink resource pre-agreed or configured for data transmission, and a maximum value, a minimum value, an intersection or a union of the time domain resources indicated by the indication field, as the time domain resources of the target transmission; or a third determining unit, configured to take the time domain resources indicated by the indication field as the time domain resources of the target transmission, if the time domain resources indicated by the indication field do not exceed a size of the uplink resource or the downlink resource determined according to the indication field, or do not exceed a size of a region in the uplink resource or the downlink resource determined according to the indication field and pre-agreed or configured for data transmission; or a fourth determining unit, configured to take the uplink resource or the downlink resource as the time domain resources of the target transmission, or take the time domain resources indicated by the indication field as the time domain resources of the target transmission, or take a maximum value, a minimum value, an intersection or a union of the uplink resource or the downlink resource and the time domain resources indicated by the indication field as the time domain resources of the target transmission, if the time domain resources indicated by the indication field exceed the size of the uplink resource or the downlink resource determined according to the indication field; or a fifth determining unit, configured to take a region in the uplink resource or the downlink resource pre-agreed or configured for data transmission as the time domain resources of the target transmission, or take the time domain resources indicated by the indication field as the time domain resources of the target transmission, or take a maximum value, a minimum value, an intersection or a union of the region in the uplink resource or the downlink resource pre-agreed or configured for data transmission and the time domain resources indicated by the indication field as the time domain resources of the target transmission, if the time domain resources indicated by the indication field exceed a size of the region in the uplink resource or the downlink resource determined according to the indication field and pre-agreed or configured for data transmission.

16. The terminal according to claim 15, characterized by the target transmission corresponding to the downlink control channel specifically comprises: if a format of DCI used by the downlink control channel is an uplink DCI format, the target transmission corresponding to the downlink control channel is uplink shared channel transmission scheduled by the downlink control channel; or if the format of DCI used by the downlink control channel is a downlink DCI format, the target transmission corresponding to the downlink control channel is downlink shared channel transmission scheduled by the downlink control channel; or If a format of DCI used by the downlink control channel is a downlink DCI format, a target transmission corresponding to the downlink control channel is ACK / NACK feedback corresponding to a downlink shared channel scheduled by the downlink control channel or ACK / NACK feedback corresponding to the downlink control channel.

17. The terminal according to claim 15, characterized by The target time unit is one of the following time units: a current time unit in which the downlink control channel is transmitted, an A1th time unit after the current time unit, A2 continuous time units starting from the current time unit, or A3 continuous time units after the current time unit, where A1, A2, and A3 are 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-layer signaling, or determined according to an indication field in the downlink control channel.

18. The terminal according to claim 15, characterized by The time domain resource indicated by the indication field includes one or more of the following information: a number of symbols, a symbol position, a number of mini-slots, a mini-slot position, a number of slots, a slot position, a number of subframes, and a subframe position; The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

19. The terminal according to claim 15, characterized by The uplink / downlink resource division of the target time unit in which the target transmission is located includes the following information: resource information of downlink resources in the target time unit in which the target transmission is located, or resource information of uplink resources in the target time unit in which the target transmission is located, or at least two of the resource information of downlink resources, the resource information of uplink resources, and resource information of a guard period GP in the target time unit in which the target transmission is located, where the resource information includes resource size and / or position; or a structure type of the target time unit corresponding to the downlink control channel.

20. The terminal according to claim 19, characterized by The structure type includes at least one of the following structure types: a first structure type in which all symbols, mini-slots, slots, or subframes in the target time unit are used for uplink transmission, a second structure type in which all symbols, mini-slots, slots, or subframes in the target time unit are used for downlink transmission, and a third structure type in which a first part of symbols, mini-slots, slots, or subframes in the target time unit are used for uplink transmission, and a second part of symbols, mini-slots, slots, or subframes in the target time unit are used for downlink transmission.

21. The terminal according to claim 15, characterized by The target time unit is a predefined or configured unit containing D1 subframes, D2 slots, D3 mini-slots, or D4 symbols, where D1, D2, D3, and D4 are integers greater than or equal to 1.

22. A base station, comprising: The method includes the following steps: a sending module configured to send a downlink control channel carrying an indication field, the indication field being used to indicate time domain resources of a target transmission corresponding to the downlink control channel and uplink / downlink resource division of a target time unit in which the target transmission is located; a second determining module configured to determine the time domain resources of the target transmission corresponding to the downlink control channel according to the indication field. a second transmission module, configured to perform the target transmission on the time domain resource; wherein the indication field is used to indicate the time domain resource of the target transmission corresponding to the downlink control channel and uplink and downlink resource division of the target time unit in which the target transmission is located; the second determination module comprises: a tenth determination submodule, configured to take the time domain resource indicated by the indication field as the time domain resource of the target transmission corresponding to the downlink control channel; or, an eleventh determination submodule, configured to determine the uplink resource and / or downlink resource of the target time unit in which the target transmission is located according to the indication field, take all or part of the uplink resource or the downlink resource as the time domain resource of the target transmission; or take all or part of the resource for data transmission in the uplink resource or the downlink resource pre-agreed or configured as the time domain resource of the target transmission; or, a twelfth determination submodule, configured to determine the time domain resource of the target transmission according to the time domain resource indicated by the indication field and the uplink and downlink resource division of the target time unit; wherein the twelfth determination submodule comprises: a sixth determination unit, configured to take the maximum value, the minimum value, the intersection or the union of all or part of the time domain resource in the uplink resource or the downlink resource determined according to the indication field and the time domain resource indicated by the indication field as the time domain resource of the target transmission; or, a seventh determination unit, configured to take the maximum value, the minimum value, the intersection or the union of all or part of the time domain resource in the resource for data transmission in the uplink resource or the downlink resource pre-agreed or configured and the time domain resource indicated by the indication field as the time domain resource of the target transmission; or, an eighth determination unit, configured to take the time domain resource indicated by the indication field as the time domain resource of the target transmission 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 size of the region for data transmission in the uplink resource or the downlink resource determined according to the indication field; or, a ninth determination unit, configured to take the uplink resource or the downlink resource as the time domain resource of the target transmission if the time domain resource indicated by the indication field exceeds the size of the uplink resource or the downlink resource determined according to the indication field, or take the time domain resource indicated by the indication field as the time domain resource of the target transmission, or take the maximum value, the minimum value, the intersection or the union of the uplink resource or the downlink resource and the time domain resource indicated by the indication field as the time domain resource of the target transmission; or, a tenth determination unit, configured to take the time domain resource indicated by the indication field as the time domain resource of the target transmission 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 size of the region for data transmission in the uplink resource or the downlink resource determined according to the indication field; or, The tenth determining unit is configured to: if the time domain resource indicated by the indication field exceeds the size of the region for transmitting data in the uplink resource or the downlink resource that is pre-agreed or configured according to the indication field, taking the region for transmitting data in the uplink resource or the downlink resource that is pre-agreed or configured as the time domain resource of the target transmission, or taking the time domain resource indicated by the indication field as the time domain resource of the target transmission, or taking the maximum value, the minimum value, the intersection or the union of the region for transmitting data in the uplink resource or the downlink resource that is pre-agreed or configured and the time domain resource indicated by the indication field as the time domain resource of the target transmission.

23. The base station of claim 22, wherein, The target transmission corresponding to the downlink control channel specifically includes: If the format of the DCI used by the downlink control channel is an uplink DCI format, the target transmission corresponding to the downlink control channel is an uplink shared channel transmission scheduled by the downlink control channel; 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 a downlink shared channel transmission scheduled by the downlink control channel; 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 ACK / NACK feedback corresponding to the downlink shared channel transmission scheduled by the downlink control channel or ACK / NACK feedback corresponding to the downlink control channel.

24. The base station of claim 22, wherein, The target time unit is one of the following time units: a current time unit in which the downlink control channel is transmitted, an A1th time unit after the current time unit, A2 continuous time units starting from the current time unit, or A3 continuous time units after the current time unit, where A1, A2 and A3 are 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 a high layer signaling, or determined according to an indication field in the downlink control channel.

25. The base station of claim 22, wherein, The time domain resource indicated by the indication field includes one or more of the following information: The number of symbols, the position of symbols, the number of mini-slots, the position of mini-slots, the number of slots, the position of slots, the number of subframes, and the position of subframes. The mini-slot is a unit occupying X symbols, and X is an integer greater than or equal to 1.

26. The base station of claim 22, wherein, The uplink and downlink resource division of the target time unit in which the target transmission is located specifically includes: Resource information of downlink resources in the target time unit in which the target transmission is located, or resource information of uplink resources in the target time unit in which the target transmission is located, or at least two of the resource information of downlink resources, the resource information of uplink resources, and resource information of a guard period GP in the target time unit in which the target transmission is located, wherein the resource information includes resource size and / or position; or The structure type of the target time unit corresponding to the downlink control channel.

27. The base station of claim 26, wherein, The structure type includes at least one of the following structure types: A first structure type in which all symbols or mini-slots or time slots or subframes in the target time unit are used for uplink transmission, a second structure type in which all symbols or mini-slots or time slots or subframes in the target time unit are used for downlink transmission, and a third structure type in which a first part of symbols or mini-slots or time slots or subframes in the target time unit are used for uplink transmission, and a second part of symbols or mini-slots or time slots or subframes are used for downlink transmission.

28. The base station of claim 22, wherein, The target time unit is a predefined or configured unit containing D1 subframes, D2 time slots, D3 mini-slots or D4 symbols, wherein D1, D2, D3 and D4 are integers greater than or equal to 1.

Images