CN109963342B

CN109963342B - Physical uplink shared channel transmission method, device, terminal and base station

Info

Publication number: CN109963342B
Application number: CN201711435226.4A
Authority: CN
Inventors: 高雪娟; 司倩倩; 艾托尼
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-12-26
Filing date: 2017-12-26
Publication date: 2021-06-25
Anticipated expiration: 2037-12-26
Also published as: CN109963342A

Abstract

The invention provides a transmission method, a device, a terminal and a base station of a physical uplink shared channel, wherein the transmission method of the physical uplink shared channel comprises the following steps: receiving a Physical Downlink Control Channel (PDCCH) transmitted by using a preset Downlink Control Information (DCI) format; and determining whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data or not according to at least indication information in a New Data Indication (NDI) indication domain and a Modulation and Coding Strategy (MCS) indication domain in a DCI format used by the PDCCH. According to the scheme, through reusing a plurality of indication domain combination judgments in the existing DCI, when the PUSCH is judged not to contain the TB corresponding to the UL-SCH, the modulation order of the UCI on the PUSCH can be further determined according to the MCS indication domain, and normal transmission of the PUSCH only bearing the UCI is realized on the basis of not increasing DCI indication overhead; the problem that in the prior art, whether the PUSCH contains the UL-SCH or not can not be determined, so that the PUSCH cannot be normally transmitted is well solved.

Description

Physical uplink shared channel transmission method, device, terminal and base station

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a terminal, and a base station for transmitting a physical uplink shared channel.

Background

In an LTE wireless communication system, Aperiodic Channel State Information (a-CSI) is transmitted through a Physical Uplink Shared Channel (PUSCH), and a base station eNodeB triggers a terminal UE to report a-CSI through a Physical Downlink Control Channel (PDCCH) for scheduling Uplink data. An Information field exists in a Downlink Control Information (DCI) format (format) used by a PDCCH for scheduling uplink data for triggering A-CSI reporting, and when the Information field indicates that UE needs to report the A-CSI, the UE reports the A-CSI on a PUSCH scheduled by the DCI.

In the LTE system, Uplink Control Information (UCI) and Uplink Shared Channel (UL-SCH) (that is, one or more Transport Blocks (TBs) are transmitted on a PUSCH and may also be referred to as data) are supported, and corresponding TBs are multiplexed and transmitted on a PUSCH, or only the UCI is transmitted on a PUSCH without a corresponding UL-SCH, that is, the PUSCH transmits only the UCI.

The UCI comprises hybrid automatic repeat request acknowledgement information HARQ-ACK, channel state information CSI and the like. The eNodeB indicates that there is no TB (i.e., only UCI) corresponding to the UL-SCH on the PUSCH by setting some information fields in the DCI format used by the PDCCH (i.e., uplink scheduling grant UL grant) scheduling the PUSCH to a special state. Section 8.6.2 of the 3GPP protocol ts36.213e40 specifies that when a specific scheduling condition is satisfied, there is no TB transmission corresponding to the UL-SCH on the scheduled PUSCH, that is, only UCI exists on the PUSCH: for example, when the PDCCH uses DCI format 0 and a Modulation and Coding Scheme (MCS) level is 29 and when an information field triggering CSI in the DCI is 1 bit and is set to trigger a-CSI reporting and the number of Physical Resource Blocks (PRBs) is less than or equal to 4, or when DCI format 4 is used and only one TB is enabled and the corresponding MCS level of the enabled TB is 29 and the number of indicated transmission layers is 1 and when an information field triggering CSI in the DCI is 1 bit and is set to trigger aperiodic CSI reporting and the number of PRBs is less than or equal to 4, etc.

When the TBs corresponding to the UCI and the UL-SCH are multiplexed and transmitted on the PUSCH, the TBs corresponding to the UCI and the UL-SCH use the same modulation order; when only UCI is transmitted on PUSCH and TB corresponding to UL-SCH is not present, a modulation order, such as modulation order Qm of 2, is fixed for UCI, i.e., QPSK modulation is used.

In NR, UCI may contain more bits, and thus a larger modulation order needs to be supported to improve its transmission efficiency on PUSCH.

That is, in the LTE system, when only UCI is transmitted on the PUSCH without including TB corresponding to UL-SCH, QPSK modulation with a modulation order of 2 is fixedly used for UCI. In the NR system, a higher-order modulation scheme may be used for transmitting a-CSI on a PUSCH without a TB corresponding to an UL-SCH, and determining a modulation order of UCI requires determining whether the PUSCH includes a TB corresponding to the UL-SCH first, but there is no clear method for determining whether a PUSCH includes a TB corresponding to the UL-SCH in the NR system at present.

As described above, with the development of mobile communication service demands, organizations such as ITU (International Telecommunication Union) and 3GPP have started to research New wireless communication systems (e.g., 5G NR, 5Generation New RAT). In the conventional 5G NR, when the a-CSI is triggered to be transmitted on a PUSCH without a corresponding UL-SCH, the modulation order of the a-CSI may use a modulation order applied to the PUSCH with the corresponding UL-SCH, that is, high-order modulation such as Qm-2 (corresponding to QPSK), Qm4 (corresponding to 16QAM), Qm-6 (corresponding to 64QAM) may be used. Determining the modulation order of the a-CSI requires first determining whether the PUSCH has a corresponding UL-SCH, but currently, there is no clear method for determining whether a PUSCH includes the UL-SCH.

Disclosure of Invention

The invention aims to provide a method, a device, a terminal and a base station for transmitting a physical uplink shared channel, which solve the problem that the PUSCH cannot be normally transmitted because whether the PUSCH contains the UL-SCH cannot be determined in the prior art.

In order to solve the foregoing technical problem, an embodiment of the present invention provides a method for transmitting a physical uplink shared channel, including:

receiving a Physical Downlink Control Channel (PDCCH) transmitted by using a preset Downlink Control Information (DCI) format;

and determining whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data or not according to at least indication information in a New Data Indication (NDI) indication domain and a Modulation and Coding Strategy (MCS) indication domain in a DCI format used by the PDCCH.

Optionally, the DCI format is a DCI format for scheduling PUSCH transmission.

Optionally, the step of determining whether a physical uplink shared channel PUSCH corresponding to the PDCCH includes data according to at least indication information in a new data indication NDI indication field and a modulation and coding strategy, MCS, indication field in a DCI format used by the PDCCH includes:

and when the NDI indication field indicates a turning state and the MCS indication field indicates one element in a preset MCS index set, determining that the PUSCH does not contain data.

and when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and the redundancy version RV indication field in the DCI format indicates RV version 0, determining that the PUSCH does not contain data.

and when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and the aperiodic channel state information A-CSI indication field in the DCI format indicates that A-CSI transmission is triggered, determining that the PUSCH does not contain data.

and when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, the redundancy version RV indication field in the DCI format indicates RV version '0', and the aperiodic channel state information A-CSI indication field in the DCI format indicates triggering A-CSI transmission, determining that the PUSCH does not contain data.

Optionally, the predetermined MCS index set is MCS {28,29,30,31}, or MCS {29,30,31 }.

Optionally, the method for transmitting a physical uplink shared channel further includes:

and when determining that the Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH does not contain data, determining the modulation order of Uplink Control Information (UCI) transmitted on the PUSCH according to the MCS indication field, wherein each MCS index in the preset MCS index set corresponds to one modulation order.

Optionally, the modulation order is only used for aperiodic channel state information a-CSI, and if there is HARQ-ACK transmission of hybrid automatic repeat request acknowledgement information on the PUSCH, the HARQ-ACK uses a predefined modulation order;

alternatively, the modulation order is applied to all UCI transmitted on the PUSCH.

Optionally, the data is a transport block TB corresponding to an uplink shared channel UL-SCH.

The embodiment of the invention also provides a physical uplink shared channel transmission method, which comprises the following steps:

sending a Physical Downlink Control Channel (PDCCH) transmitted by adopting a preset Downlink Control Information (DCI) format;

and indicating whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data or not at least through indication information in a New Data Indication (NDI) indication domain and a Modulation and Coding Strategy (MCS) indication domain in a DCI format used by the PDCCH.

Optionally, the DCI format is a DCI format for scheduling PUSCH transmission.

Optionally, the step of indicating, at least by using new data in a DCI format used by the PDCCH, whether a physical uplink shared channel PUSCH corresponding to the PDCCH includes data includes indication information in an NDI indication field and a modulation and coding strategy, MCS, indication field includes:

indicating that no data is contained in the PUSCH (by setting) when the NDI indication field indicates a roll-over status and the MCS indication field indicates one element of a predetermined MCS index set.

and (by setting) when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and the redundancy version RV indication field in the DCI format indicates RV version 0, indicating that no data is contained in the PUSCH.

and (by setting) when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and the aperiodic channel state information A-CSI indication field in the DCI format indicates that A-CSI transmission is triggered, indicating that the PUSCH does not contain data.

and (by setting) when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, the redundancy version RV indication field in the DCI format indicates RV version 0, and the aperiodic channel state information A-CSI indication field in the DCI format indicates that A-CSI transmission is triggered, indicating that the PUSCH does not contain data.

and when indicating that a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH does not contain data, indicating the modulation order of Uplink Control Information (UCI) transmitted on the PUSCH through the MCS indication field, wherein each MCS index in the preset MCS index set corresponds to one modulation order.

An embodiment of the present invention further provides a terminal, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor;

the processor is used for reading the program in the memory and executing the following processes:

receiving, by the transceiver, a Physical Downlink Control Channel (PDCCH) transmitted using a preset Downlink Control Information (DCI) format;

Optionally, the DCI format is a DCI format for scheduling PUSCH transmission.

Optionally, the processor is specifically configured to:

Optionally, the processor is further configured to:

An embodiment of the present invention further provides a base station, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor;

transmitting a Physical Downlink Control Channel (PDCCH) transmitted by adopting a preset Downlink Control Information (DCI) format through the transceiver;

Optionally, the DCI format is a DCI format for scheduling PUSCH transmission.

Optionally, the processor is specifically configured to:

Optionally, the processor is further configured to:

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the above-mentioned physical uplink shared channel transmission method.

The embodiment of the present invention further provides a physical uplink shared channel transmission apparatus, including:

a first receiving module, configured to receive a physical downlink control channel PDCCH transmitted using a preset downlink control information DCI format;

a first determining module, configured to determine whether a physical uplink shared channel PUSCH corresponding to the PDCCH includes data according to at least indication information in a new data indication NDI indication field and a modulation and coding strategy, MCS, indication field in a DCI format used by the PDCCH.

Optionally, the DCI format is a DCI format for scheduling PUSCH transmission.

Optionally, the first determining module includes:

a first determining submodule, configured to determine that the PUSCH contains no data when the NDI indication field indicates a rolling state and the MCS indication field indicates one element in a predetermined MCS index set.

Optionally, the first determining module includes:

a second determining sub-module, configured to determine that no data is contained in the PUSCH when the NDI indication field indicates a rolling status, the MCS indication field indicates one element in a predetermined MCS index set, and a redundancy version, RV, indication field in the DCI format indicates RV version "0".

Optionally, the first determining module includes:

a third determining submodule, configured to determine that the PUSCH does not include data when the NDI indication field indicates a flipping state, the MCS indication field indicates one element in a predetermined MCS index set, and an aperiodic channel state information a-CSI indication field in the DCI format indicates that a-CSI transmission is triggered.

Optionally, the first determining module includes:

a fourth determining submodule, configured to determine that the PUSCH does not include data when the NDI indication field indicates a rolling state, the MCS indication field indicates one element in a predetermined MCS index set, the redundancy version, RV, indication field in the DCI format indicates an RV version of "0", and the aperiodic channel state information, a-CSI, indication field in the DCI format indicates that a-CSI transmission is triggered.

Optionally, the apparatus for transmitting a physical uplink shared channel further includes:

and a second determining module, configured to determine, according to the MCS indication field, a modulation order of uplink control information UCI transmitted on the PUSCH when it is determined that a physical uplink shared channel, PUSCH, corresponding to the PDCCH does not contain data, where each MCS index in the predetermined MCS index set corresponds to one modulation order.

a first sending module, configured to send a physical downlink control channel PDCCH transmitted in a preset downlink control information DCI format;

a first indication module, configured to indicate, at least through new data in a DCI format used by the PDCCH, indication information in an NDI indication field and a modulation and coding scheme, MCS, indication field, and indicate whether a physical uplink shared channel, PUSCH, corresponding to the PDCCH includes data.

Optionally, the DCI format is a DCI format for scheduling PUSCH transmission.

Optionally, the first indicating module includes:

a first indication submodule, configured to indicate that no data is included in the PUSCH (by setting) when the NDI indication field indicates a roll-over state and the MCS indication field indicates one element in a predetermined MCS index set.

Optionally, the first indicating module includes:

and a second indicating submodule, configured to indicate (by setting) that no data is contained in the PUSCH when the NDI indication field indicates a roll-over state, the MCS indication field indicates one element in a predetermined MCS index set, and a redundancy version, RV, indication field in the DCI format indicates RV version "0".

Optionally, the first indicating module includes:

and a third indication submodule, configured to indicate (by setting) that the PUSCH does not include data when the NDI indication field indicates a flipping state, the MCS indication field indicates one element in a predetermined MCS index set, and an aperiodic channel state information a-CSI indication field in the DCI format indicates that a-CSI transmission is triggered.

Optionally, the first indicating module includes:

and a fourth indication submodule, configured to indicate (by setting) that the PUSCH does not include data when the NDI indication field indicates a rolling status, the MCS indication field indicates one element in a predetermined MCS index set, the redundancy version RV indication field in the DCI format indicates an RV version "0", and the aperiodic channel state information a-CSI indication field in the DCI format indicates that a-CSI transmission is triggered.

and a second indicating module, configured to indicate, through the MCS indication field, a modulation order of uplink control information UCI transmitted on the PUSCH when indicating that a physical uplink shared channel, PUSCH, corresponding to the PDCCH does not contain data, where each MCS index in the predetermined MCS index set corresponds to one modulation order.

The technical scheme of the invention has the following beneficial effects:

in the above scheme, the physical uplink shared channel transmission method receives a physical downlink control channel PDCCH transmitted by using a preset downlink control information DCI format; determining whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data or not according to at least indication information in a New Data Indication (NDI) indication domain and a Modulation and Coding Strategy (MCS) indication domain in a DCI format used by the PDCCH; namely, the combination judgment of multiple indication domains in the existing DCI is reused, and when the PUSCH does not contain the TB corresponding to the UL-SCH, the modulation order of the UCI on the PUSCH can be further determined according to the MCS indication domain, and the normal transmission of the PUSCH only carrying the UCI is realized on the basis of not increasing DCI indication overhead; the problem that in the prior art, whether the PUSCH contains the UL-SCH or not can not be determined, so that the PUSCH cannot be normally transmitted is well solved.

Drawings

Fig. 1 is a first flowchart illustrating a method for transmitting a physical uplink shared channel according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a second method for transmitting a physical uplink shared channel according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 5 is a first schematic structural diagram of a physical uplink shared channel transmission apparatus according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a transmission apparatus of a physical uplink shared channel according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

The present invention provides a transmission method of a physical uplink shared channel, which is applied to a terminal, as shown in fig. 1, and includes:

step 11: receiving a Physical Downlink Control Channel (PDCCH) transmitted by using a preset Downlink Control Information (DCI) format;

step 12: and determining whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data or not according to at least indication information in a New Data Indication (NDI) indication domain and a Modulation and Coding Strategy (MCS) indication domain in a DCI format used by the PDCCH.

The physical uplink shared channel transmission method provided by the embodiment of the invention receives a physical downlink control channel PDCCH transmitted by using a preset downlink control information DCI format; determining whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data or not according to at least indication information in a New Data Indication (NDI) indication domain and a Modulation and Coding Strategy (MCS) indication domain in a DCI format used by the PDCCH; namely, the combination judgment of multiple indication domains in the existing DCI is reused, and when the PUSCH does not contain the TB corresponding to the UL-SCH, the modulation order of the UCI on the PUSCH can be further determined according to the MCS indication domain, and the normal transmission of the PUSCH only carrying the UCI is realized on the basis of not increasing DCI indication overhead; the problem that in the prior art, whether the PUSCH contains the UL-SCH or not can not be determined, so that the PUSCH cannot be normally transmitted is well solved.

Wherein the DCI format is a DCI format for scheduling PUSCH transmission.

For step 12, the following four specific implementation examples are provided in the embodiment of the present invention, but not limited thereto:

in a first example, the step of determining whether a physical uplink shared channel PUSCH corresponding to the PDCCH includes data according to at least indication information in a new data indication NDI indication field and a modulation and coding scheme, MCS, indication field in a DCI format used by the PDCCH includes: and when the NDI indication field indicates a turning state and the MCS indication field indicates one element in a preset MCS index set, determining that the PUSCH does not contain data. Further, otherwise, it is determined that the PUSCH includes data, but not limited thereto; for example, it is also possible that when the NDI indication field indicates a non-flipped state and/or the MCS indication field does not indicate one element in a predetermined MCS index set, it does not indicate that data is contained in the PUSCH, and the following similar situation is also applicable.

In a second example, the step of determining whether a physical uplink shared channel PUSCH corresponding to the PDCCH includes data according to at least indication information in a new data indication NDI indication field and a modulation and coding scheme, MCS, indication field in a DCI format used by the PDCCH includes: and when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and the redundancy version RV indication field in the DCI format indicates RV version 0, determining that the PUSCH does not contain data. Further, otherwise, it is determined that the PUSCH includes data, but not limited thereto.

In a third example, the step of determining whether a physical uplink shared channel PUSCH corresponding to the PDCCH includes data according to at least indication information in a new data indication NDI indication field and a modulation and coding scheme, MCS, indication field in a DCI format used by the PDCCH includes: and when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and the aperiodic channel state information A-CSI indication field in the DCI format indicates that A-CSI transmission is triggered, determining that the PUSCH does not contain data. Further, otherwise, it is determined that the PUSCH includes data, but not limited thereto.

In a fourth example, the determining, according to at least indication information in a new data indication NDI indication field and a modulation and coding scheme, MCS, indication field in a DCI format used by the PDCCH, whether a physical uplink shared channel, PUSCH, corresponding to the PDCCH contains data includes: and when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, the redundancy version RV indication field in the DCI format indicates RV version '0', and the aperiodic channel state information A-CSI indication field in the DCI format indicates triggering A-CSI transmission, determining that the PUSCH does not contain data. Further, otherwise, it is determined that the PUSCH includes data, but not limited thereto.

In one embodiment, the predetermined MCS index set is MCS {28,29,30,31}, or MCS {29,30,31 }.

Specifically, the indication turning state of the NDI indication field is that the indication state of the NDI indication field is different from the NDI indication state of the previous transmission of the same HARQ-ACK process number of the HARQ-ACK information; that is, the status indicated by the NDI indication field in the DCI format used by the current PDCCH is different from the status indicated by the NDI indication field in the DCI format used by the latest PDCCH corresponding to the same HARQ-ACK process number, for example, the status indicated by the NDI indication field in the DCI format used by the latest PDCCH is "0", the status indicated by the NDI indication field in the DCI format used by the current PDCCH is "1" indicating inversion, and if the status indicated by the NDI indication field in the DCI format used by the current PDCCH is "0" indicating no inversion, the HARQ-ACK process numbers indicated by the HARQ-ACK process numbers in the same HARQ-ACK process number, that is, the HARQ-ACK process number indicated by the HARQ-ACK process number indication field in the used PDCCH, are the same.

Further, the method for transmitting the physical uplink shared channel further includes: and when determining that the Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH does not contain data, determining a modulation order of Uplink Control Information (UCI) transmitted on the PUSCH according to the MCS indication field, wherein each MCS index in the predetermined MCS index set corresponds to one modulation order (a modulation mode can be determined according to the modulation order).

The modulation order is only used for aperiodic channel state information A-CSI, and if hybrid automatic repeat request acknowledgement information HARQ-ACK transmission exists on the PUSCH, the HARQ-ACK uses a predefined modulation order; alternatively, the modulation order is applied to all UCI transmitted on the PUSCH.

Here, the predefined modulation order may be a modulation order Qm of 2, which corresponds to the QPSK modulation scheme.

Specifically, the data is a transport block TB corresponding to an uplink shared channel UL-SCH.

An embodiment of the present invention further provides a method for transmitting a physical uplink shared channel, which can be applied to a base station, as shown in fig. 2, and includes:

step 21: sending a Physical Downlink Control Channel (PDCCH) transmitted by adopting a preset Downlink Control Information (DCI) format;

step 22: and indicating whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data or not at least through indication information in a New Data Indication (NDI) indication domain and a Modulation and Coding Strategy (MCS) indication domain in a DCI format used by the PDCCH.

The physical uplink shared channel transmission method provided by the embodiment of the invention transmits a physical downlink control channel PDCCH transmitted by adopting a preset downlink control information DCI format; indicating whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data or not at least through indicating information in an NDI (New data indication) indication domain and a Modulation and Coding Strategy (MCS) indication domain by new data in a DCI format used by the PDCCH; namely, by reusing a plurality of indication domain combination indications in the existing DCI, and when indicating that the PUSCH does not contain the TB corresponding to the UL-SCH, the MCS indication domain can be further reused to indicate the modulation order of the UCI on the PUSCH, and the normal transmission of the PUSCH only carrying the UCI is realized on the basis of not increasing DCI indication overhead; the problem that in the prior art, whether the PUSCH contains the UL-SCH or not can not be determined, so that the PUSCH cannot be normally transmitted is well solved.

Wherein the DCI format is a DCI format for scheduling PUSCH transmission.

For step 22, the following four specific implementation examples are provided in the embodiment of the present invention, but not limited thereto:

in a first example, the step of indicating whether a physical uplink shared channel PUSCH corresponding to the PDCCH includes data at least by indicating information in an NDI indication field and a modulation and coding scheme, MCS, indication field with new data in a DCI format used by the PDCCH includes: indicating that no data is contained in the PUSCH (by setting) when the NDI indication field indicates a roll-over status and the MCS indication field indicates one element of a predetermined MCS index set. Further, otherwise, indicating that the PUSCH includes data, but not limited thereto; for example, it is also possible that when the NDI indication field indicates a non-flipped state and/or the MCS indication field does not indicate one element in a predetermined MCS index set, it does not indicate that data is contained in the PUSCH, and the following similar situation is also applicable.

In a second example, the step of indicating whether a physical uplink shared channel PUSCH corresponding to the PDCCH includes data at least by indicating information in an NDI indication field and a modulation and coding scheme, MCS, indication field with new data in a DCI format used by the PDCCH includes: and (by setting) when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and the redundancy version RV indication field in the DCI format indicates RV version 0, indicating that no data is contained in the PUSCH. Further, otherwise, data is indicated to be included in the PUSCH, but not limited thereto.

In a third example, the indicating information in at least a DCI format used by the PDCCH is new data indication NDI indication field and a modulation and coding scheme, MCS, indication field, and the step of indicating whether a physical uplink shared channel, PUSCH, corresponding to the PDCCH contains data includes: and (by setting) when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and the aperiodic channel state information A-CSI indication field in the DCI format indicates that A-CSI transmission is triggered, indicating that the PUSCH does not contain data. Further, otherwise, data is indicated to be included in the PUSCH, but not limited thereto.

In a fourth example, the indicating information in at least a DCI format used by the PDCCH is new data indication NDI indication field and a modulation and coding scheme, MCS, indication field, and the step of indicating whether a physical uplink shared channel, PUSCH, corresponding to the PDCCH contains data includes: and (by setting) when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, the redundancy version RV indication field in the DCI format indicates RV version 0, and the aperiodic channel state information A-CSI indication field in the DCI format indicates that A-CSI transmission is triggered, indicating that the PUSCH does not contain data. Further, otherwise, data is indicated to be included in the PUSCH, but not limited thereto.

Specifically, the indication turning state of the NDI indication field is that the indication state of the NDI indication field is different from the NDI indication state of the previous transmission of the same HARQ-ACK process number of the HARQ-ACK information; the above (related description with the terminal side) is specifically explained.

Further, the method for transmitting the physical uplink shared channel further includes: and when indicating that the Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH does not contain data, indicating the modulation order of Uplink Control Information (UCI) transmitted on the PUSCH through the MCS indication field, wherein each MCS index in the predetermined MCS index set corresponds to one modulation order (the modulation mode can be determined according to the modulation order).

The physical uplink shared channel transmission method provided by the embodiment of the present invention is further described below with respect to a combination of a terminal and two sides of a base station.

In view of the above technical problem, an embodiment of the present invention provides a method for determining whether a PUSCH includes an UL-SCH, which mainly determines whether the PUSCH includes data at least through indication information in an NDI and MCS indication field in DCI. The two sides of the terminal and the base station are involved, as follows:

a terminal side:

receiving a PDCCH transmitted using DCI format X; the DCI format is a DCI format for scheduling PUSCH transmission; for example, DCI format 0_0, DCI format 0_ 1;

and determining whether the PUSCH corresponding to the PDCCH contains data according to at least indication information in an NDI indication field and an MCS indication field in the DCI format.

In this embodiment, the following four ways are specifically provided as examples, but not limited thereto:

mode 1: determining whether the PUSCH corresponding to the PDCCH contains data only according to indication information in an NDI indication field and an MCS indication field in the DCI format; for example, when the NDI indication field indicates a toggle (toggle) state and the MCS indication field indicates one element in a predetermined MCS index set, it is determined that the PUSCH does not contain data;

otherwise, judging that the PUSCH contains data.

Mode 2: determining whether the PUSCH corresponding to the PDCCH contains data or not according to the indication information in the NDI indication domain, the MCS indication domain and the RV indication domain in the DCI format; for example, when the NDI indication field indicates a toggle (toggle) state, the MCS indication field indicates one element in a predetermined MCS index set, and the RV indication field indicates an RV version "0", it is determined that no data is contained in the PUSCH;

otherwise, judging that the PUSCH contains data.

Mode 3: determining whether a PUSCH corresponding to the PDCCH contains data or not according to indication information in an NDI indication domain, an MCS indication domain and an A-CSI indication domain in the DCI format; when an NDI indication field indicates a toggle (toggle) state, an MCS indication field indicates one element in a preset MCS index set, and an A-CSI indication field indicates that A-CSI transmission is triggered, judging that the PUSCH does not contain data;

otherwise, judging that the PUSCH contains data.

Mode 4: determining whether the PUSCH corresponding to the PDCCH contains data or not according to the indication information in an NDI indication domain, an MCS indication domain, an RV indication domain and an A-CSI indication domain in the DCI format; when the NDI indication field indicates a toggle (toggle) state, the MCS indication field indicates one element in a preset MCS index set, the RV indication field indicates RV version '0', and the A-CSI indication field indicates triggering A-CSI transmission, judging that the PUSCH does not contain data;

otherwise, judging that the PUSCH contains data.

Wherein the predetermined MCS index set is MCS {28,29,30,31}, or MCS {29,30,31 };

further, in this embodiment, when it is determined that no data is included, a modulation order of UCI transmitted on the PUSCH is determined according to the MCS indication field, where each MCS index in the predetermined MCS index set corresponds to one modulation order (according to the modulation order, a modulation scheme may be determined);

for example, the mapping relationship between each element in the predetermined MCS index set and the corresponding modulation order Qm as shown in table 1 or table 2 below; the modulation mode may be determined according to the modulation order, for example, Qm-2 corresponds to QPSK, Qm4 corresponds to 16QAM, Qm-6 corresponds to 64QAM, Qm-8 corresponds to 256QAM, and the like;

table 1: MCS indication domain state and UCI modulation order in DCI

Table 2: MCS indication domain state and UCI modulation order in DCI

The MCS indication field indicates a predetermined MCS index	Corresponding modulation order Qm
		29	2
30	4
		31	6

Wherein the modulation order may be used only for a-CSI, and at this time, if there is also HARQ-ACK transmission on the PUSCH, HARQ-ACK uses a fixed modulation order, for example, Qm ═ 2, corresponding to QPSK modulation scheme;

alternatively, the modulation order may be applied to all UCI transmitted on the PUSCH;

specifically, the data is TB corresponding to UL-SCH;

the NDI indication field indication toggling (toggle) state is specifically an NDI indication state of the NDI indication field which is different from an NDI indication state of a previous data transmission of the same HARQ-ACK process number.

A base station side:

transmitting a PDCCH transmitted using DCI format X; the DCI format is a DCI format for scheduling PUSCH transmission; for example, DCI format 0_0, DCI format 0_ 1;

and indicating whether the PUSCH corresponding to the PDCCH contains data or not at least through indication information in an NDI indication field and an MCS indication field in the DCI.

For a specific indication scheme and related limitations, refer to the above description of the terminal side, how the terminal side determines that the PUSCH does not include data, and how the corresponding base station side indicates that the PUSCH does not include data;

for example, mode 1 on the terminal side: when the NDI indication field indicates a toggle (toggle) state and the MCS indication field indicates one element in a predetermined MCS index set, judging that the PUSCH does not contain data; otherwise, judging that the PUSCH contains data;

the indication mode of the corresponding base station side is as follows: indicating that the PUSCH does not contain data by setting an NDI indication field indication turning (toggle) state and an MCS indication field indicating one element in a preset MCS index set; otherwise, indicating that the PUSCH contains data.

Therefore, the detailed indication scheme and related details on the base station side are not described herein.

The four methods are adopted below to respectively illustrate the physical uplink shared channel transmission method provided by the embodiment of the present invention.

Assuming that the base station gNB desires to schedule a PUSCH transmission UCI without a TB corresponding to the UL-SCH in slot x (predetermined target slot), and desires to use a 16QAM modulation scheme with Qm of 4, then:

mode 1:

the gNB sends a PDCCH (UL grant, the same applies below) using DCI format 0_1, and is used to schedule the UE to transmit a PUSCH in slot x, and the gNB sets the 1-bit NDI indication field in the DCI format 0_1 to be different from the NDI indication field in the DCI corresponding to the previous PUSCH transmission corresponding to the same HARQ-ACK process number, for example, if the 1-bit NDI of the previous time is "0", the NDI in the DCI format 0_1 is set to be "1", and sets the 5-bit MCS indication field to be MCS level 29 (taking table 1 as an example, if table 2 is used, MCS level 30 needs to be indicated);

the terminal UE detects a PDCCH using the DCI format 0_1 and correctly receives the PDCCH sent by the gNB, and then judges that the PDCCH schedules a PUSCH without a TB corresponding to the UL-SCH according to the fact that the NDI is in an overturning state relative to the NDI in the previous DCI of the same HARQ-ACK process number and the MCS indicates the grade 29, and only UCI is transmitted on the PUSCH in the time slot x; namely, no matter what state the A-CSI indication field and the RV indication field indicate, the PUSCH without the TB corresponding to the UL-SCH is judged; the specific UCI content is determined according to the actual situation: and if the A-CSI indication domain triggers A-CSI feedback, transmitting the A-CSI on a PUSCH according to a corresponding feedback mode, if HARQ-ACK feedback and/or periodic CSI also exist, dropping the periodic CSI, transmitting the HARQ-ACK on the PUSCH simultaneously with the A-CSI, and if the A-CSI indication domain does not trigger the A-CSI feedback, transmitting the HARQ-ACK (if exists) and/or the periodic CSI on the PUSCH.

Mode 2:

the gNB sends a PDCCH by using DCI format 0_1, which is used to schedule the UE to transmit a PUSCH in slot x, and the gNB sets a 1-bit NDI indication field in the DCI format 0_1 to be different from an NDI indication field in a DCI corresponding to a previous PUSCH transmission corresponding to the same HARQ-ACK process number, for example, if a 1-bit NDI of the previous time is "0", the NDI in the DCI format 0_1 is set to be "1", and sets a 5-bit MCS indication field to be MCS level 29 (taking table 1 as an example, if table 2 is used, MCS level 30 needs to be indicated), and sets a 2-bit RV indication field to be RV version 0;

the UE detects a PDCCH using the DCI format 0_1 and correctly receives the PDCCH sent by the gNB, and then judges that the PDCCH schedules a PUSCH without a TB corresponding to the UL-SCH according to the condition that the NDI in the previous DCI of the same HARQ-ACK process number is in an overturning state, the MCS indicates the grade 29 and the RV indication domain indicates the RV version 0, and only UCI is transmitted on the PUSCH in a time slot x; namely, no matter what state the A-CSI indication field indicates, the PUSCH without the TB corresponding to the UL-SCH is judged; the specific UCI content is determined according to the actual situation: and if the A-CSI indication domain triggers A-CSI feedback, transmitting the A-CSI on a PUSCH according to a corresponding feedback mode, if HARQ-ACK feedback and/or periodic CSI also exist, dropping the periodic CSI, transmitting the HARQ-ACK on the PUSCH simultaneously with the A-CSI, and if the A-CSI indication domain does not trigger the A-CSI feedback, transmitting the HARQ-ACK (if exists) and/or the periodic CSI on the PUSCH.

Mode 3:

the gNB sends a PDCCH by using DCI format 0_1, which is used to schedule the UE to transmit a PUSCH in time slot x, and the gNB sets a 1-bit NDI indication field in the DCI format 0_1 to be different from an NDI indication field in a DCI corresponding to a previous PUSCH transmission corresponding to the same HARQ-ACK process number, for example, if the previous 1-bit NDI is "0", the NDI in the DCI format 0_1 is "1", and sets a 5-bit MCS indication field to indicate MCS level 29 (taking table 1 as an example, if table 2 is used, MCS level 30 needs to be indicated), and sets an N-bit a-CSI indication field to indicate triggering of a-CSI transmission (N may be a predetermined or preconfigured number of bits such as 1, 2, or 3);

the UE detects a PDCCH using the DCI format 0_1, correctly receives the PDCCH sent by the gNB, judges that the PDCCH schedules a PUSCH without a TB corresponding to the UL-SCH according to the condition that the NDI in the previous DCI of the same HARQ-ACK process number is in an overturning state, the MCS indicates the grade 29 and the A-CSI indication domain is set to indicate and trigger A-CSI transmission, and only transmits the UCI on the PUSCH in a time slot x; in other words, no matter what status the RV indication field indicates, it is determined that there is no PUSCH with TB corresponding to UL-SCH; the specific UCI content is determined according to the actual situation: and because the A-CSI transmission is triggered, the UE generates A-CSI according to the triggered specific A-CSI feedback set to transmit on the PUSCH, if HARQ-ACK feedback and/or periodic CSI also exist, the UE drops the periodic CSI, and HARQ-ACK is transmitted on the PUSCH and the A-CSI simultaneously.

Mode 4:

the gNB sends a PDCCH by using DCI format 0_1, which is used to schedule the UE to transmit a PUSCH at time slot x, and the gNB sets a 1-bit NDI indication field in the DCI format 0_1 to be different from an NDI indication field in a DCI corresponding to a previous PUSCH transmission corresponding to the same HARQ-ACK process number, for example, if the 1-bit NDI of the previous time is "0", the NDI in the DCI format 0_1 is "1", and sets a 5-bit MCS indication field to indicate MCS level 29 (taking table 1 as an example, if table 2 is used, MCS level 30 needs to be indicated), sets a 2-bit RV indication field to indicate RV version 0, and sets an N-bit a-CSI indication field to indicate that a-CSI transmission is triggered by pre-configuration (N may be 1, 2, or 3, and the like predetermined or bit number of bits);

the UE detects a PDCCH using the DCI format 0_1, correctly receives the PDCCH sent by the gNB, and then judges that the PDCCH schedules a PUSCH without a TB corresponding to the UL-SCH according to the condition that the NDI in the previous DCI of the same HARQ-ACK process number is in a turning state, the MCS indicates the grade 29, the RV indication domain indicates the RV version 0, the A-CSI indication domain is set to indicate to trigger A-CSI transmission, and only the UCI is transmitted on the xPCUSCH in the time slot x; the specific UCI content is determined according to the actual situation: and because the A-CSI transmission is triggered, the UE generates A-CSI according to the triggered specific A-CSI feedback set to transmit on the PUSCH, if HARQ-ACK feedback and/or periodic CSI also exist, the UE drops the periodic CSI, and HARQ-ACK is transmitted on the PUSCH and the A-CSI simultaneously.

In the above process, a 16QAM modulation scheme may be used only for a-CSI or periodic CSI, QPSK may be used for HARQ-ACK (if any), or 16QAM may be applied to all UCI, and which scheme is predefined for UE and gNB.

As can be seen from the above, in the scheme provided in the embodiment of the present invention (which may be specifically a method for determining whether a PUSCH includes TB transmission corresponding to an UL-SCH), at least, whether the PUSCH includes data is determined by NDI in DCI and indication information in an MCS indication field; namely, by reusing a plurality of indication domain combination judgments in the existing DCI, and when judging that the PUSCH does not contain the TB corresponding to the UL-SCH, the MCS indication domain can be further reused to determine the modulation order of the UCI on the PUSCH, and the normal transmission of the UCI only on PUSCH is realized on the basis of not increasing DCI indication overhead.

An embodiment of the present invention further provides a terminal, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor is used for reading the program in the memory and executing the following processes:

The terminal provided by the embodiment of the invention receives a physical downlink control channel PDCCH transmitted by using a preset downlink control information DCI format; determining whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data or not according to at least indication information in a New Data Indication (NDI) indication domain and a Modulation and Coding Strategy (MCS) indication domain in a DCI format used by the PDCCH; namely, the combination judgment of multiple indication domains in the existing DCI is reused, and when the PUSCH does not contain the TB corresponding to the UL-SCH, the modulation order of the UCI on the PUSCH can be further determined according to the MCS indication domain, and the normal transmission of the PUSCH only carrying the UCI is realized on the basis of not increasing DCI indication overhead; the problem that in the prior art, whether the PUSCH contains the UL-SCH or not can not be determined, so that the PUSCH cannot be normally transmitted is well solved.

As shown in fig. 3, the terminal provided in the embodiment of the present invention includes:

a processor 31; and a memory 33 connected to the processor 31 through a bus interface 32, wherein the memory 33 is used for storing programs and data used by the processor 31 in executing operations, and when the processor 31 calls and executes the programs and data stored in the memory 33, the following processes are executed:

receiving, by the transceiver 34, a physical downlink control channel PDCCH transmitted using a preset downlink control information, DCI, format;

Wherein a transceiver 34 is connected to the bus interface 32 for receiving and transmitting data under control of the processor 31.

It should be noted that in fig. 3, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 31 and various circuits of memory represented by memory 33 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 34 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. For different terminals, the user interface 35 may also be an interface capable of interfacing with a desired device, including but not limited to a keypad, display, speaker, microphone, joystick, etc. The processor 31 is responsible for managing the bus architecture and general processing, and the memory 33 may store data used by the processor 31 in performing operations.

Those skilled in the art will appreciate that all or part of the steps for implementing the above embodiments may be performed by hardware, or may be instructed to be performed by associated hardware by a computer program that includes instructions for performing some or all of the steps of the above methods; and the computer program may be stored in a readable storage medium, which may be any form of storage medium.

Wherein the DCI format is a DCI format for scheduling PUSCH transmission.

For an operation of determining whether a physical uplink shared channel PUSCH corresponding to the PDCCH includes data according to at least indication information in a new data indication NDI indication field and a modulation and coding strategy MCS indication field in a DCI format used by the PDCCH, the following four specific implementation examples are provided in the embodiment of the present invention, but are not limited thereto:

in a first example, the processor is specifically configured to: and when the NDI indication field indicates a turning state and the MCS indication field indicates one element in a preset MCS index set, determining that the PUSCH does not contain data. Further, otherwise, it is determined that the PUSCH includes data, but not limited thereto.

In a second example, the processor is specifically configured to: and when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and the redundancy version RV indication field in the DCI format indicates RV version 0, determining that the PUSCH does not contain data. Further, otherwise, it is determined that the PUSCH includes data, but not limited thereto.

In a third example, the processor is specifically configured to: and when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and the aperiodic channel state information A-CSI indication field in the DCI format indicates that A-CSI transmission is triggered, determining that the PUSCH does not contain data. Further, otherwise, it is determined that the PUSCH includes data, but not limited thereto.

In a fourth example, the processor is specifically configured to: and when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, the redundancy version RV indication field in the DCI format indicates RV version '0', and the aperiodic channel state information A-CSI indication field in the DCI format indicates triggering A-CSI transmission, determining that the PUSCH does not contain data. Further, otherwise, it is determined that the PUSCH includes data, but not limited thereto.

Further, the processor is further configured to: and when determining that the Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH does not contain data, determining the modulation order of Uplink Control Information (UCI) transmitted on the PUSCH according to the MCS indication field, wherein each MCS index in the preset MCS index set corresponds to one modulation order.

The implementation embodiments of the above-mentioned method for transmitting the physical uplink shared channel at the terminal side are all applicable to the embodiment of the terminal, and the same technical effects can be achieved.

An embodiment of the present invention further provides a base station, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor is used for reading the program in the memory and executing the following processes:

The base station provided by the embodiment of the invention transmits a physical downlink control channel PDCCH transmitted by adopting a preset downlink control information DCI format; indicating whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data or not at least through indicating information in an NDI (New data indication) indication domain and a Modulation and Coding Strategy (MCS) indication domain by new data in a DCI format used by the PDCCH; namely, by reusing a plurality of indication domain combination indications in the existing DCI, and when indicating that the PUSCH does not contain the TB corresponding to the UL-SCH, the MCS indication domain can be further reused to indicate the modulation order of the UCI on the PUSCH, and the normal transmission of the PUSCH only carrying the UCI is realized on the basis of not increasing DCI indication overhead; the problem that in the prior art, whether the PUSCH contains the UL-SCH or not can not be determined, so that the PUSCH cannot be normally transmitted is well solved.

Specifically, as shown in fig. 4, the base station of the embodiment of the present invention includes:

a processor 41; and a memory 43 connected to the processor 41 through the bus interface 42, wherein the memory 43 is used for storing programs and data used by the processor 41 in executing operations, and when the processor 41 calls and executes the programs and data stored in the memory 43, the following processes are executed:

transmitting, by the transceiver 44, a physical downlink control channel PDCCH transmitted in a preset downlink control information, DCI, format;

Wherein a transceiver 44 is connected to the bus interface 42 for receiving and transmitting data under control of the processor 41.

It should be noted that in fig. 4, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 41 and various circuits of memory represented by memory 43 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 44 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 41 is responsible for managing the bus architecture and general processing, and the memory 43 may store data used by the processor 41 in performing operations.

Wherein the DCI format is a DCI format for scheduling PUSCH transmission.

For an operation that indicates whether a physical uplink shared channel PUSCH corresponding to the PDCCH includes data at least through indication information in a new data indication NDI indication field and a modulation and coding strategy MCS indication field in a DCI format used by the PDCCH, the following four specific implementation examples are provided in the embodiment of the present invention, but are not limited thereto:

in a first example, the processor is specifically configured to: indicating that no data is contained in the PUSCH (by setting) when the NDI indication field indicates a roll-over status and the MCS indication field indicates one element of a predetermined MCS index set. Further, otherwise, data is indicated to be included in the PUSCH, but not limited thereto.

In a second example, the processor is specifically configured to: and (by setting) when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and the redundancy version RV indication field in the DCI format indicates RV version 0, indicating that no data is contained in the PUSCH. Further, otherwise, data is indicated to be included in the PUSCH, but not limited thereto.

In a third example, the processor is specifically configured to: and (by setting) when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and the aperiodic channel state information A-CSI indication field in the DCI format indicates that A-CSI transmission is triggered, indicating that the PUSCH does not contain data. Further, otherwise, data is indicated to be included in the PUSCH, but not limited thereto.

In a fourth example, the processor is specifically configured to: and (by setting) when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, the redundancy version RV indication field in the DCI format indicates RV version 0, and the aperiodic channel state information A-CSI indication field in the DCI format indicates that A-CSI transmission is triggered, indicating that the PUSCH does not contain data. Further, otherwise, data is indicated to be included in the PUSCH, but not limited thereto.

Further, the processor is further configured to: and when indicating that a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH does not contain data, indicating the modulation order of Uplink Control Information (UCI) transmitted on the PUSCH through the MCS indication field, wherein each MCS index in the preset MCS index set corresponds to one modulation order.

The implementation embodiments of the above-mentioned method for transmitting the physical uplink shared channel at the base station side are all applicable to the embodiment of the base station, and can achieve the same technical effect.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the above-mentioned physical uplink shared channel transmission method at the terminal side.

The implementation embodiments of the above-mentioned method for transmitting the physical uplink shared channel at the terminal side are all applicable to the embodiment of the computer-readable storage medium, and the same technical effects can also be achieved.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the above-mentioned method for transmitting a physical uplink shared channel on a base station side.

The implementation embodiments of the above-mentioned method for transmitting the physical uplink shared channel at the base station side are all applicable to the embodiment of the computer-readable storage medium, and the same technical effects can also be achieved.

An embodiment of the present invention further provides a physical uplink shared channel transmission apparatus, which is applicable to a terminal, and as shown in fig. 5, the apparatus includes:

a first receiving module 51, configured to receive a physical downlink control channel PDCCH transmitted using a preset downlink control information DCI format;

a first determining module 52, configured to determine whether a physical uplink shared channel PUSCH corresponding to the PDCCH includes data according to at least indication information in a new data indication NDI indication field and a modulation and coding strategy MCS indication field in a DCI format used by the PDCCH.

The physical uplink shared channel transmission device provided by the embodiment of the invention receives a physical downlink control channel PDCCH transmitted by using a preset downlink control information DCI format; determining whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data or not according to at least indication information in a New Data Indication (NDI) indication domain and a Modulation and Coding Strategy (MCS) indication domain in a DCI format used by the PDCCH; namely, the combination judgment of multiple indication domains in the existing DCI is reused, and when the PUSCH does not contain the TB corresponding to the UL-SCH, the modulation order of the UCI on the PUSCH can be further determined according to the MCS indication domain, and the normal transmission of the PUSCH only carrying the UCI is realized on the basis of not increasing DCI indication overhead; the problem that in the prior art, whether the PUSCH contains the UL-SCH or not can not be determined, so that the PUSCH cannot be normally transmitted is well solved.

Wherein the DCI format is a DCI format for scheduling PUSCH transmission.

For the first determining module 52, the following four specific implementation examples are provided in the embodiment of the present invention, but not limited thereto:

in a first example, the first determining module comprises: a first determining submodule, configured to determine that the PUSCH contains no data when the NDI indication field indicates a rolling state and the MCS indication field indicates one element in a predetermined MCS index set. Further, otherwise, it is determined that the PUSCH includes data, but not limited thereto.

In a second example, the first determining module comprises: a second determining sub-module, configured to determine that no data is contained in the PUSCH when the NDI indication field indicates a rolling status, the MCS indication field indicates one element in a predetermined MCS index set, and a redundancy version, RV, indication field in the DCI format indicates RV version "0". Further, otherwise, it is determined that the PUSCH includes data, but not limited thereto.

In a third example, the first determining module includes: a third determining submodule, configured to determine that the PUSCH does not include data when the NDI indication field indicates a flipping state, the MCS indication field indicates one element in a predetermined MCS index set, and an aperiodic channel state information a-CSI indication field in the DCI format indicates that a-CSI transmission is triggered. Further, otherwise, it is determined that the PUSCH includes data, but not limited thereto.

In a fourth example, the first determining module includes: a fourth determining submodule, configured to determine that the PUSCH does not include data when the NDI indication field indicates a rolling state, the MCS indication field indicates one element in a predetermined MCS index set, the redundancy version, RV, indication field in the DCI format indicates an RV version of "0", and the aperiodic channel state information, a-CSI, indication field in the DCI format indicates that a-CSI transmission is triggered. Further, otherwise, it is determined that the PUSCH includes data, but not limited thereto.

Further, the apparatus for transmitting a physical uplink shared channel further includes: and a second determining module, configured to determine, according to the MCS indication field, a modulation order of uplink control information UCI transmitted on the PUSCH when it is determined that a physical uplink shared channel, PUSCH, corresponding to the PDCCH does not contain data, where each MCS index in the predetermined MCS index set corresponds to one modulation order.

The implementation embodiments of the above-mentioned method for transmitting the physical uplink shared channel at the terminal side are all applicable to the embodiment of the apparatus for transmitting the physical uplink shared channel, and can achieve the same technical effect.

An embodiment of the present invention further provides a physical uplink shared channel transmission apparatus, which can be applied to a base station, as shown in fig. 6, and includes:

a first sending module 61, configured to send a physical downlink control channel PDCCH transmitted in a preset downlink control information DCI format;

a first indication module 62, configured to indicate, at least through new data in a DCI format used by the PDCCH, indication information in an NDI indication field and a modulation and coding scheme, MCS, indication field, whether a physical uplink shared channel, PUSCH, corresponding to the PDCCH contains data.

The physical uplink shared channel transmission device provided by the embodiment of the invention transmits a physical downlink control channel PDCCH transmitted by adopting a preset downlink control information DCI format; indicating whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data or not at least through indicating information in an NDI (New data indication) indication domain and a Modulation and Coding Strategy (MCS) indication domain by new data in a DCI format used by the PDCCH; namely, by reusing a plurality of indication domain combination indications in the existing DCI, and when indicating that the PUSCH does not contain the TB corresponding to the UL-SCH, the MCS indication domain can be further reused to indicate the modulation order of the UCI on the PUSCH, and the normal transmission of the PUSCH only carrying the UCI is realized on the basis of not increasing DCI indication overhead; the problem that in the prior art, whether the PUSCH contains the UL-SCH or not can not be determined, so that the PUSCH cannot be normally transmitted is well solved.

Wherein the DCI format is a DCI format for scheduling PUSCH transmission.

For the first indication module 62, the following four specific implementation examples are provided in the embodiment of the present invention, but not limited thereto:

in a first example, the first indication module includes: a first indication submodule, configured to indicate that no data is included in the PUSCH (by setting) when the NDI indication field indicates a roll-over state and the MCS indication field indicates one element in a predetermined MCS index set. Further, otherwise, data is indicated to be included in the PUSCH, but not limited thereto.

In a second example, the first indication module comprises: and a second indicating submodule, configured to indicate (by setting) that no data is contained in the PUSCH when the NDI indication field indicates a roll-over state, the MCS indication field indicates one element in a predetermined MCS index set, and a redundancy version, RV, indication field in the DCI format indicates RV version "0". Further, otherwise, data is indicated to be included in the PUSCH, but not limited thereto.

In a third example, the first indication module includes: and a third indication submodule, configured to indicate (by setting) that the PUSCH does not include data when the NDI indication field indicates a flipping state, the MCS indication field indicates one element in a predetermined MCS index set, and an aperiodic channel state information a-CSI indication field in the DCI format indicates that a-CSI transmission is triggered. Further, otherwise, data is indicated to be included in the PUSCH, but not limited thereto.

In a fourth example, the first indication module includes: and a fourth indication submodule, configured to indicate (by setting) that the PUSCH does not include data when the NDI indication field indicates a rolling status, the MCS indication field indicates one element in a predetermined MCS index set, the redundancy version RV indication field in the DCI format indicates an RV version "0", and the aperiodic channel state information a-CSI indication field in the DCI format indicates that a-CSI transmission is triggered. Further, otherwise, data is indicated to be included in the PUSCH, but not limited thereto.

Further, the apparatus for transmitting a physical uplink shared channel further includes: and a second indicating module, configured to indicate, through the MCS indication field, a modulation order of uplink control information UCI transmitted on the PUSCH when indicating that a physical uplink shared channel, PUSCH, corresponding to the PDCCH does not contain data, where each MCS index in the predetermined MCS index set corresponds to one modulation order.

The implementation embodiments of the above-mentioned method for transmitting the physical uplink shared channel at the base station side are all applicable to the embodiment of the apparatus for transmitting the physical uplink shared channel, and can achieve the same technical effects.

It should be noted that many of the functional components described in this specification are referred to as modules/sub-modules in order to more particularly emphasize their implementation independence.

In embodiments of the invention, the modules/sub-modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be constructed as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.

Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within the modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices, and may exist, at least partially, merely as electronic signals on a system or network.

When a module can be implemented by software, considering the level of existing hardware technology, a module implemented by software may build a corresponding hardware circuit to implement a corresponding function, without considering cost, and the hardware circuit may include a conventional Very Large Scale Integration (VLSI) circuit or a gate array and an existing semiconductor such as a logic chip, a transistor, or other discrete components. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

1. A method for transmitting a physical uplink shared channel (PUCCH) includes:

determining whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data or not according to at least indication information in a New Data Indication (NDI) indication domain and a Modulation and Coding Strategy (MCS) indication domain in a DCI format used by the PDCCH;

wherein the step of determining whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data according to at least indication information in a New Data Indication (NDI) indication field and a Modulation and Coding Scheme (MCS) indication field in a DCI format used by the PDCCH comprises:

when the NDI indication field indicates a turning state and the MCS indication field indicates one element in a preset MCS index set, determining that the PUSCH does not contain data; alternatively, the first and second electrodes may be,

when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and a Redundancy Version (RV) indication field in the DCI format indicates RV version 0, determining that the PUSCH does not contain data; alternatively, the first and second electrodes may be,

when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and an aperiodic channel state information (A-CSI) indication field in the DCI format indicates that A-CSI transmission is triggered, determining that the PUSCH does not contain data; alternatively, the first and second electrodes may be,

2. The method according to claim 1, wherein the DCI format is a DCI format for scheduling PUSCH transmission.

3. The physical uplink shared channel transmission method of claim 1, wherein the predetermined MCS index set is MCS {28,29,30,31} or MCS {29,30,31 }.

4. The physical uplink shared channel transmission method according to claim 1, wherein the physical uplink shared channel transmission method further comprises:

5. The method according to claim 4, wherein the modulation order is only used for aperiodic channel state information A-CSI, and if there is also HARQ-ACK transmission of hybrid automatic repeat request acknowledgement information on the PUSCH, the HARQ-ACK uses a predefined modulation order;

6. The physical uplink shared channel transmission method according to claim 1 or 2, wherein the data is a transport block TB corresponding to an uplink shared channel UL-SCH.

7. A method for transmitting a physical uplink shared channel (PUCCH) includes:

indicating whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data or not at least through indicating information in an NDI (New data indication) indication domain and a Modulation and Coding Strategy (MCS) indication domain by new data in a DCI format used by the PDCCH;

wherein the step of indicating whether a Physical Uplink Shared Channel (PUSCH) corresponding to the PDCCH contains data at least by indicating information in an NDI indication field and a Modulation and Coding Strategy (MCS) indication field by new data in a DCI format used by the PDCCH comprises:

when the NDI indication field indicates a turning state and the MCS indication field indicates one element in a preset MCS index set, indicating that the PUSCH does not contain data; alternatively, the first and second electrodes may be,

when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and a Redundancy Version (RV) indication field in the DCI format indicates RV version 0, indicating that no data is contained in the PUSCH; alternatively, the first and second electrodes may be,

when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, and an aperiodic channel state information A-CSI indication field in the DCI format indicates that A-CSI transmission is triggered, indicating that the PUSCH does not contain data; alternatively, the first and second electrodes may be,

and when the NDI indication field indicates a turning state, the MCS indication field indicates one element in a preset MCS index set, the redundancy version RV indication field in the DCI format indicates RV version '0', and the aperiodic channel state information A-CSI indication field in the DCI format indicates that A-CSI transmission is triggered, indicating that the PUSCH does not contain data.

8. The method according to claim 7, wherein the DCI format is a DCI format for scheduling PUSCH transmission.

9. The physical uplink shared channel transmission method of claim 7, wherein the predetermined MCS index set is MCS {28,29,30,31}, or MCS {29,30,31 }.

10. The physical uplink shared channel transmission method according to claim 7, wherein the physical uplink shared channel transmission method further comprises:

11. The physical uplink shared channel transmission method according to claim 10, wherein the modulation order is only used for aperiodic channel state information a-CSI, and if there is also HARQ-ACK transmission of hybrid automatic repeat request acknowledgement information on the PUSCH, the HARQ-ACK uses a predefined modulation order;

12. The physical uplink shared channel transmission method of claim 7 or 8, wherein the data is a transport block TB corresponding to an uplink shared channel UL-SCH.

13. A terminal, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; it is characterized in that the preparation method is characterized in that,

wherein the processor is specifically configured to:

14. The terminal of claim 13, wherein the DCI format is a DCI format for scheduling PUSCH transmission.

15. The terminal of claim 13, wherein the predetermined MCS index set is MCS {28,29,30,31} or MCS {29,30,31 }.

16. The terminal of claim 13, wherein the processor is further configured to:

17. The terminal of claim 16, wherein the modulation order is only used for aperiodic channel state information a-CSI, and wherein if there is also a hybrid automatic repeat request acknowledgement information HARQ-ACK transmission on the PUSCH, the HARQ-ACK uses a predefined modulation order;

18. The terminal of claim 13 or 14, wherein the data is a transport block TB corresponding to an uplink shared channel UL-SCH.

19. A base station, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; it is characterized in that the preparation method is characterized in that,

wherein the processor is specifically configured to:

20. The base station of claim 19, wherein the DCI format is a DCI format for scheduling a PUSCH transmission.

21. The base station of claim 19, wherein the predetermined MCS index set is MCS {28,29,30,31} or MCS {29,30,31 }.

22. The base station of claim 19, wherein the processor is further configured to:

23. The base station of claim 22, wherein the modulation order is only for aperiodic channel state information a-CSI, and wherein if there is also a hybrid automatic repeat request acknowledgement information HARQ-ACK transmission on the PUSCH, the HARQ-ACK uses a predefined modulation order;

24. The base station according to claim 19 or 20, wherein the data is a transport block TB corresponding to an uplink shared channel UL-SCH.

25. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for physical uplink shared channel transmission according to any one of claims 1 to 6.

26. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for physical uplink shared channel transmission according to any one of claims 7 to 12.

27. A physical uplink shared channel transmission apparatus, comprising:

a first determining module, configured to determine, according to at least indication information in a new data indication NDI indication field and a modulation and coding strategy, MCS indication field in a DCI format used by the PDCCH, whether a physical uplink shared channel, PUSCH, corresponding to the PDCCH contains data;

wherein the first determining module comprises: a first determining submodule, configured to determine that the PUSCH does not include data when the NDI indication field indicates a rolling state and the MCS indication field indicates one element in a predetermined MCS index set; alternatively, the first and second electrodes may be,

the first determining module includes: a second determining submodule, configured to determine that the PUSCH does not include data when the NDI indication field indicates a rolling state, the MCS indication field indicates one element in a predetermined MCS index set, and a redundancy version, RV, indication field in the DCI format indicates an RV version "0"; alternatively, the first and second electrodes may be,

the first determining module includes: a third determining submodule, configured to determine that the PUSCH does not include data when the NDI indication field indicates a flipping state, the MCS indication field indicates one element in a predetermined MCS index set, and an aperiodic channel state information a-CSI indication field in the DCI format indicates that a-CSI transmission is triggered; alternatively, the first and second electrodes may be,

the first determining module includes: a fourth determining submodule, configured to determine that the PUSCH does not include data when the NDI indication field indicates a rolling state, the MCS indication field indicates one element in a predetermined MCS index set, the redundancy version, RV, indication field in the DCI format indicates an RV version of "0", and the aperiodic channel state information, a-CSI, indication field in the DCI format indicates that a-CSI transmission is triggered.

28. A physical uplink shared channel transmission apparatus, comprising:

a first indication module, configured to indicate, at least through new data in a DCI format used by the PDCCH, indication information in an NDI indication field and a modulation and coding scheme, MCS, indication field, and indicate whether a physical uplink shared channel, PUSCH, corresponding to the PDCCH includes data;

wherein the first indication module comprises: a first indication submodule, configured to indicate that no data is included in the PUSCH when the NDI indication field indicates a rolling state and the MCS indication field indicates one element in a predetermined MCS index set; alternatively, the first and second electrodes may be,

the first indication module comprises: a second indication submodule, configured to indicate that no data is included in the PUSCH when the NDI indication field indicates a rolling status, the MCS indication field indicates one element in a predetermined MCS index set, and a redundancy version, RV, indication field in the DCI format indicates an RV version "0"; alternatively, the first and second electrodes may be,

the first indication module comprises: a third indication submodule, configured to indicate that the PUSCH does not include data when the NDI indication field indicates a rolling state, the MCS indication field indicates one element in a predetermined MCS index set, and an aperiodic channel state information a-CSI indication field in the DCI format indicates that a-CSI transmission is triggered; alternatively, the first and second electrodes may be,

the first indication module comprises: and a fourth indication submodule, configured to indicate that no data is included in the PUSCH when the NDI indication field indicates a rolling state, the MCS indication field indicates one element in a predetermined MCS index set, the redundancy version, RV, indication field in the DCI format indicates an RV version of "0", and the aperiodic channel state information, a-CSI, indication field in the DCI format indicates that a-CSI transmission is triggered.