阅读说明：本技术 数据传输方式的确定方法、装置、设备及存储介质 (Method, device and equipment for determining data transmission mode and storage medium ) 是由 陈文洪 史志华 于 2019-09-26 设计创作，主要内容包括：本申请提供了一种数据传输方式的确定方法、装置、设备及存储介质,涉及通信技术领域。所述方法包括：接收用于调度物理下行共享信道PDSCH的下行控制信息DCI,根据DCI中携带的被关闭传输块的新数据传输指示NDI信息,确定PDSCH的分集传输方式。由于分集传输方式只支持单个传输块的传输,所以可以利用DCI中的空闲比特位来携带NDI信息,该NDI信息可以用于指示所采用的分集传输方式,不需要额外的信令开销,且能够支持不同传输方式的动态切换。(The application provides a method, a device, equipment and a storage medium for determining a data transmission mode, and relates to the technical field of communication. The method comprises the following steps: receiving Downlink Control Information (DCI) used for scheduling a Physical Downlink Shared Channel (PDSCH), and determining a diversity transmission mode of the PDSCH according to NDI information of new data transmission indication (NDI) of a closed transmission block carried in the DCI. Because the diversity transmission mode only supports the transmission of a single transmission block, the idle bit in the DCI can be used to carry the NDI information, and the NDI information can be used to indicate the adopted diversity transmission mode, does not require additional signaling overhead, and can support the dynamic switching of different transmission modes.)

A method for determining a data transmission mode is applied to a terminal, and the method comprises the following steps:

receiving Downlink Control Information (DCI) for scheduling a Physical Downlink Shared Channel (PDSCH);

and determining the diversity transmission mode of the PDSCH according to the NDI information of the new data transmission indication of the closed transmission block carried in the DCI.

The method of claim 1, wherein the determining the diversity transmission mode of the PDSCH according to the new data transmission indication (NDI) information of the closed transport block carried in the DCI comprises:

and according to the NDI information, determining that a diversity transmission mode of data in different TCI states in the PDSCH is a first diversity transmission mode or a second diversity transmission mode, wherein the first diversity transmission mode occupies different frequency domain resources for diversity transmission, and the second diversity transmission mode occupies different time domain resources for diversity transmission.

The method of claim 2, wherein the determining, according to the NDI information, that the diversity transmission scheme of the data in the PDSCH employing different TCI states is a first diversity transmission scheme or a second diversity transmission scheme comprises:

when the value of the NDI information is a first value, determining that different frequency domain resources are occupied by data in different TCI states in the PDSCH for diversity transmission;

and when the value of the NDI information is a second value, determining that different time domain resources occupied by data in different TCI states in the PDSCH are subjected to diversity transmission.

The method of claim 2, wherein the method further comprises:

when the diversity transmission mode of the data in different TCI states in the PDSCH is determined to be the first diversity transmission mode, the transmission modes of the data in different TCI states in the PDSCH on different frequency domain resources are determined according to FDM indication information configured by network equipment.

The method of any of claims 2-4, further comprising:

when the diversity transmission mode of the data in different TCI states in the PDSCH is determined to be the first diversity transmission mode, determining the frequency domain resources occupied by the data in different TCI states according to the information in the frequency domain resource indication domain in the DCI;

receiving the PDSCH using different TCI states on the determined frequency domain resources.

The method of claim 2, wherein the method further comprises:

and when the diversity transmission mode of the data in different TCI states in the PDSCH is determined to be the second diversity transmission mode, determining time domain resources occupied by the data in different TCI states in the PDSCH according to the time slot aggregation times of the PDSCH.

The method of claim 6, wherein the determining time domain resources occupied by data in different TCI states in the PDSCH according to the PDSCH time slot aggregation number comprises:

if the PDSCH time slot aggregation times is 1, determining that data in different TCI states in the PDSCH occupy different OFDM symbols in the same time slot; alternatively, the first and second electrodes may be,

and if the time slot aggregation times of the PDSCH is more than 1, determining that the data in different TCI states occupy different time slots in the PDSCH.

The method of claim 6 or 7, wherein the method further comprises:

and when the diversity transmission mode of the data in different TCI states in the PDSCH is determined to be the second diversity transmission mode, receiving the PDSCH by adopting different TCI states on different time domain resources.

The method of claim 1, wherein the determining the diversity transmission mode of the PDSCH according to the new data transmission indication (NDI) information of the closed transport block carried in the DCI comprises:

and determining transmission modes of data in different TCI states on different frequency domain resources in the PDSCH according to the NDI information.

The method of claim 4 or 9, wherein the transmission means employed on the different frequency domain resources comprises at least one of:

whether the redundancy versions RV adopted by the data on different frequency domain resources are the same or not;

whether data on different frequency domain resources can be independently decoded;

whether the data on different frequency domain resources come from the same coded code word;

whether the data on different frequency domain resources adopt the same modulation and coding strategy MCS or not;

whether the same number of transmission layers is used for data on different frequency domain resources.

The method of claim 9 or 10, wherein the determining, according to the NDI information, transmission manners of data in the PDSCH employing different TCI states on different frequency domain resources comprises:

when the value of the NDI information is a third value, determining that data in different TCI states in the PDSCH come from the same coding code word or adopt the same RV;

and when the value of the NDI information is a fourth value, determining that the data in the PDSCH adopting different TCI states come from different coding code words or adopt different RVs.

The method of claim 11, wherein the method further comprises:

when determining that the data in different TCI states in the PDSCH come from the same coded code word or adopt the same RV, performing joint decoding after cascading the coded bits detected on different frequency domain resources;

and when the data adopting different TCI states in the PDSCH are determined to be from different code words or different RVs, decoding the code bits detected on different frequency domain resources after soft bit combination.

The method of any one of claims 9-12, wherein data in the PDSCH employing different TCI states is transmitted using the same time domain resources and the same DMRS port.

The method of any one of claims 9-13, further comprising:

and when the local terminal has the soft bit merging capability, determining transmission modes adopted by data in different TCI states on different frequency domain resources in the PDSCH according to the NDI information.

The method of claim 1, wherein determining the diversity transmission mode of the PDSCH according to new data transmission indication (NDI) information of a closed transport block carried in the DCI comprises:

and determining time domain resources occupied by data in different TCI states in the PDSCH according to the NDI information.

The method of claim 15, wherein the determining time domain resources occupied by data in different TCI states in the PDSCH according to the NDI information comprises:

when the value of the NDI information is a fifth value, determining that different OFDM symbols in a time slot are occupied by data in different TCI states in the PDSCH;

and when the value of the NDI information is a sixth value, determining that the data in different TCI states occupy different time slots in the PDSCH.

The method of claim 15 or 16, wherein data in the PDSCH employing different TCI states is transmitted employing the same MCS, the same frequency domain resources, and the same DMRS port.

The method of any one of claims 1-17, further comprising:

and when a plurality of TCI states are indicated in the DCI and the DMRS ports of the demodulation reference signals indicated in the DCI belong to the same Code Domain Multiplexing (CDM) group, determining the diversity transmission mode of the PDSCH according to NDI information of closed transmission blocks carried in the DCI.

A method for determining a data transmission mode is applied to a network device, and the method comprises the following steps:

sending Downlink Control Information (DCI) for scheduling a Physical Downlink Shared Channel (PDSCH), wherein the DCI carries NDI (new data indication) information of a closed transmission block, and the NDI information is used for determining a diversity transmission mode of the PDSCH.

The method of claim 19, wherein the NDI information indicates whether a diversity transmission scheme for data in different TCI states in the PDSCH is a first diversity transmission scheme or a second diversity transmission scheme, wherein the first diversity transmission scheme is for diversity transmission using different frequency domain resources, and wherein the second diversity transmission scheme is for diversity transmission using different time domain resources.

The method of claim 20,

when the value of the NDI information is a first value, the NDI information is used for indicating that data in different TCI states occupy different frequency domain resources in the PDSCH for diversity transmission;

and when the value of the NDI information is a second value, the NDI information is used for indicating that the PDSCH adopts different TCI-state data to occupy different time domain resources for diversity transmission.

The method of claim 19, wherein the NDI information is used to indicate a transmission manner of data in the PDSCH employing different TCI states on different frequency domain resources.

The method of claim 19, wherein the NDI information is used to indicate time domain resources occupied by data in the PDSCH employing different TCI states.

An apparatus for determining a data transmission mode, applied to a terminal, the apparatus comprising:

a receiving module, configured to receive downlink control information DCI for scheduling a physical downlink shared channel PDSCH;

and a determining module, configured to determine a diversity transmission mode of the PDSCH according to the new data transmission indication NDI information of the closed transmission block carried in the DCI.

The apparatus of claim 24, wherein the determination module is to:

and according to the NDI information, determining that a diversity transmission mode of data in different TCI states in the PDSCH is a first diversity transmission mode or a second diversity transmission mode, wherein the first diversity transmission mode occupies different frequency domain resources for diversity transmission, and the second diversity transmission mode occupies different time domain resources for diversity transmission.

The apparatus of claim 25, wherein the determination module is to:

when the value of the NDI information is a first value, determining that different frequency domain resources are occupied by data in different TCI states in the PDSCH for diversity transmission;

and when the value of the NDI information is a second value, determining that different time domain resources occupied by data in different TCI states in the PDSCH are subjected to diversity transmission.

The apparatus of claim 25, wherein the determination module is further configured to:

when the diversity transmission mode of the data in different TCI states in the PDSCH is determined to be the first diversity transmission mode, the transmission modes of the data in different TCI states in the PDSCH on different frequency domain resources are determined according to FDM indication information configured by network equipment.

The apparatus of any one of claims 25-27, wherein the receiving module is further configured to:

when the diversity transmission mode of the data in different TCI states in the PDSCH is determined to be the first diversity transmission mode, determining the frequency domain resources occupied by the data in different TCI states according to the information in the frequency domain resource indication domain in the DCI;

receiving the PDSCH using different TCI states on the determined frequency domain resources.

The apparatus of claim 25, wherein the determination module is further configured to:

and when the diversity transmission mode of the data in different TCI states in the PDSCH is determined to be the second diversity transmission mode, determining time domain resources occupied by the data in different TCI states in the PDSCH according to the time slot aggregation times of the PDSCH.

The apparatus of claim 29, wherein the determination module is to:

if the PDSCH time slot aggregation times is 1, determining that data in different TCI states in the PDSCH occupy different OFDM symbols in the same time slot; alternatively, the first and second electrodes may be,

and if the time slot aggregation times of the PDSCH is more than 1, determining that the data in different TCI states occupy different time slots in the PDSCH.

The apparatus of claim 29 or 30, wherein the receiving module is further configured to:

and when the diversity transmission mode of the data in different TCI states in the PDSCH is determined to be the second diversity transmission mode, receiving the PDSCH by adopting different TCI states on different time domain resources.

The apparatus of claim 24, wherein the determination module is to:

and determining transmission modes of data in different TCI states on different frequency domain resources in the PDSCH according to the NDI information.

The apparatus of claim 27 or 32, wherein the transmission schemes employed on different frequency domain resources comprise at least one of:

whether the redundancy versions RV adopted by the data on different frequency domain resources are the same or not;

whether data on different frequency domain resources can be independently decoded;

whether the data on different frequency domain resources come from the same coded code word;

whether the data on different frequency domain resources adopt the same modulation and coding strategy MCS or not;

whether the same number of transmission layers is used for data on different frequency domain resources.

The apparatus of claim 32 or 33, wherein the determination module is to:

when the value of the NDI information is a third value, determining that data in different TCI states in the PDSCH come from the same coding code word or adopt the same RV;

and when the value of the NDI information is a fourth value, determining that the data in the PDSCH adopting different TCI states come from different coding code words or adopt different RVs.

The apparatus of claim 34, wherein the receiving module is further configured to:

when determining that the data in different TCI states in the PDSCH come from the same coded code word or adopt the same RV, performing joint decoding after cascading the coded bits detected on different frequency domain resources;

and when the data adopting different TCI states in the PDSCH are determined to be from different code words or different RVs, decoding the code bits detected on different frequency domain resources after soft bit combination.

The apparatus of any one of claims 32-35, wherein data in the PDSCH employing different TCI states is transmitted using the same time domain resources and the same DMRS port.

The apparatus of any one of claims 32-36, wherein the determination module is to:

and when the local terminal has the soft bit merging capability, determining transmission modes adopted by data in different TCI states on different frequency domain resources in the PDSCH according to the NDI information.

The apparatus of claim 24, wherein the determination module is to:

and determining time domain resources occupied by data in different TCI states in the PDSCH according to the NDI information.

The apparatus of claim 38, wherein the determination module is to:

when the NDI information comprises a fifth numerical value, determining that data in different TCI states in the PDSCH occupy different OFDM symbols in a time slot;

and when the NDI information comprises a sixth numerical value, determining that the data in different TCI states occupy different time slots in the PDSCH.

The apparatus of claim 38 or 39, wherein data in the PDSCH employing different TCI states is transmitted using the same MCS, the same frequency domain resources, and the same DMRS port.

The apparatus of any one of claims 24-40, wherein the determination module is further to:

and when a plurality of TCI states are indicated in the DCI and the DMRS ports of the demodulation reference signals indicated in the DCI belong to the same Code Domain Multiplexing (CDM) group, determining the diversity transmission mode of the PDSCH according to NDI information of closed transmission blocks carried in the DCI.

An apparatus for determining a data transmission mode, applied to a network device, the apparatus comprising:

a sending module, configured to send downlink control information DCI for scheduling a physical downlink shared channel PDSCH, where the DCI carries new data transmission indication NDI information of a closed transport block, and the NDI information is used to determine a diversity transmission mode of the PDSCH.

The apparatus of claim 42, wherein the NDI information indicates whether a diversity transmission scheme for data in the PDSCH with different TCI states is a first diversity transmission scheme or a second diversity transmission scheme, wherein the first diversity transmission scheme occupies different frequency domain resources for diversity transmission, and wherein the second diversity transmission scheme occupies different time domain resources for diversity transmission.

The apparatus of claim 43,

when the value of the NDI information is a first value, the NDI information is used for indicating that data in different TCI states occupy different frequency domain resources in the PDSCH for diversity transmission;

and when the value of the NDI information is a second value, the NDI information is used for indicating that the PDSCH adopts different TCI-state data to occupy different time domain resources for diversity transmission.

The apparatus of claim 42, wherein the NDI information is used to indicate a transmission manner of data in the PDSCH with different TCI states on different frequency domain resources.

The apparatus of claim 42, wherein the NDI information is used to indicate time domain resources occupied by data in the PDSCH employing different TCI states.

An apparatus comprising a processor and a memory, the memory storing at least one instruction for execution by the processor to implement the method of any one of claims 1-18 or to implement the method of any one of claims 19-23.

A computer-readable storage medium having instructions stored thereon, wherein the instructions, when executed by a processor, implement the method for transmitting information according to any one of claims 1 to 18 or the method for receiving information according to any one of claims 19 to 23.