TW202141952A - Configuration method, apparatus, communication node, and storage medium - Google Patents

Abstract

Disclosed is a configuration method, device, communication node, and storage medium. The method includes: obtaining an indication information; configuring a demodulation reference signal DMRS according to the indication information; wherein the indication information configures the DMRS in one or more retransmission opportunities TOs among K retransmissions. K is a positive integer.

Description

Configuration method, device, communication node and storage medium

This specification relates to the field of communication technology, such as a configuration method, device, communication node, and storage medium.

At the 86th plenary meeting of Radio Access Network (RAN), a new research item (Study Item Description, SID) on coverage enhancement of New Radio Access Technology (NR) was approved. ). In the 17 version of the standard, it is necessary to further enhance the repeated transmission of the Physical Uplink Shared Channel (PUSCH) or Transport Block (TB) to meet the coverage requirements. Therefore, how to improve the coverage performance is currently a situation that needs to be improved urgently.

The following is an overview of the topics detailed in this article. This summary is not intended to limit the scope of protection of the claim.

This manual provides a configuration method, device, communication node and storage medium, which effectively improves the coverage performance.

In the first aspect, an embodiment of this specification provides a configuration method applied to a first communication node, including:

Obtain instruction information;

Configure the demodulation reference signal DMRS according to the instruction information;

Wherein, the indication information indicates that the demodulation reference signal is configured in one or more transmission occasions TO of K repeated transmissions, and K is a positive integer.

In the second aspect, the embodiment of this specification provides a configuration method applied to a second communication node, including:

Determining instruction information, the instruction information instructing to configure a demodulation reference signal in one or more transmission occasions TO of K repeated transmissions, where K is a positive integer;

Transmission instruction information.

For third-party vendors, the embodiments of this specification provide a configuration method, including:

Acquiring transmission timing offset information, where the transmission timing offset information indicates the offset between transmission timings TO when the same transmission block is repeatedly transmitted;

The position of TO is determined according to the transmission timing offset information.

In a fourth aspect, the embodiment of this specification provides a configuration method, including:

Determine the transmission timing offset information, where the transmission timing offset information indicates the offset between the transmission timings TO when the same transmission block is repeatedly transmitted;

The transmission timing offset information is transmitted.

In a fifth aspect, an embodiment of the present specification provides a configuration device configured on a first communication node, including:

Get module, set to get instruction information;

The configuration module is set to configure the demodulation reference channel DMRS according to the instruction information;

Wherein, the indication information indicates that the demodulation reference signal is configured in one or more transmission occasions TO of K repeated transmissions, and K is a positive integer.

In a sixth aspect, an embodiment of this specification provides a configuration device configured on a second communication node, including:

The determination module is set to determine instruction information, the instruction information indicates that the demodulation reference signal is configured in one or more transmission occasions TO of K repeated transmissions, and K is a positive integer;

Transmission module, set to transmit instruction information.

In a seventh aspect, an embodiment of this specification provides a configuration device, including:

The acquiring module is configured to acquire transmission timing offset information, the transmission timing offset information indicating the offset between the transmission timings TO for repeated transmission of the same transmission block;

The determination module is set to determine the position of TO according to the transmission timing offset information.

In an eighth aspect, an embodiment of this specification provides a configuration device, including:

The determining module is set to determine the transmission timing offset information, and the transmission timing offset information indicates the offset between the transmission timing TO of the repeated transmission of the same transmission block;

The transmission module is configured to transmit the transmission timing offset information.

In a ninth aspect, an embodiment of this specification provides a first communication node, including:

One or more processors;

Storage device, set to store one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors implement the method described in the first aspect or the third party.

In a tenth aspect, an embodiment of this specification provides a second communication node, including:

One or more processors;

Storage device, set to store one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to the second aspect or the fourth aspect.

In an eleventh aspect, an embodiment of this specification provides a storage medium that stores a computer program that, when executed by a processor, implements the method described in the embodiment of this specification.

Regarding the above embodiments and other aspects of this specification as well as the actual mode of operation, more descriptions are provided in the description of the drawings, the specific implementation and the claims.

Hereinafter, the embodiments of this specification will be described in detail with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in this specification and the features in the embodiments can be combined with each other arbitrarily.

The steps shown in the flowchart of the drawings can be executed in a computer system such as a set of computer-executable instructions. And, although a logical sequence is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than here.

In an exemplary embodiment, FIG. 1 is a schematic flow diagram of a configuration method provided in an embodiment of this specification. This method can be applied to the situation of improving coverage performance. The method can be executed by the configuration device of this specification, and the device can be software And/or hardware implementation, and integrated on the first communication node, the first communication node includes but not limited to user equipment (User Equipment, UE).

As shown in Figure 1, the configuration method provided in this manual includes the following steps:

S110. Obtain instruction information, the instruction information instructing to configure a demodulation reference signal in one or more transmission occasions TO of K repeated transmissions, where K is a positive integer.

The instruction information can be regarded as information that instructs the first communication node to configure the demodulation reference signal in one or more transmission occasions (Transmission Occasion, TO) of K repeated transmissions. After obtaining the indication information, the first communication node may configure a demodulation reference signal (DMRS) based on the indication information.

The indication information indicates that the number of configured DMRS can be less than K, which allows multiple TOs to share one DMRS, allowing more resources to be used for data transmission, thereby reducing the bit rate of data transmission and improving coverage performance.

The manner in which the instruction information indicates the configuration of the demodulation reference signal in one or more transmission occasions TO of K repeated transmissions is not limited. Exemplarily, the position of the DMRS may be directly indicated, or K repeated transmissions may be grouped to indicate the number of packets and the TO positions of the DMRS in the group or the TO positions of the DMRS in the DMRS pattern.

The indication information can be directly indicated through signaling, or combined through signaling, or indicated through the time domain resource allocation table, which is not limited here.

S120: Configure a demodulation reference signal DMRS according to the instruction information.

After determining the instruction information, this step can configure the DMRS according to the instruction information to implement repeated transmission.

In the case of configuring the DMRS, this step can be based on the content configuration indicated by the instruction information. The configuration method is not specifically limited here, and it can be determined based on the content of the instruction information.

Exemplarily, the indication information may indicate the location of the DMRS. After the location of the DMRS is determined, the DMRS is carried at the corresponding location to implement the configuration of the DMRS, so that multiple TOs share one DMRS to improve coverage performance.

The configuration method provided in this example in this specification effectively configures the demodulation reference signal in one or more transmission timing TOs of K repeated transmissions through the obtained instruction information, so that multiple TOs share a DMRS, allowing more resources to be used. It is used for data transmission, thereby reducing the bit rate of data transmission and improving coverage performance.

On the basis of the above-mentioned embodiment, a modified embodiment of the above-mentioned embodiment is proposed. It should be noted here that, in order to make the description concise, only the differences from the above-mentioned embodiment are described in the modified embodiment.

In one embodiment, the indication information indicates the number of packets for K repeated transmissions or the number of repeated transmissions included in a group of repeated transmissions TO.

The number of groups can be considered as the number of groups after K repeated transmissions are grouped.

In an embodiment, the indication information is indicated through radio resource control RRC signaling or downlink control information; or,

The indication information is indicated through a joint indication of RRC signaling and downlink control information, the RRC signaling indicates an indication information set, and the downlink control information indicates one indication information in the indication information set; or,

The indication information is indicated jointly by RRC signaling and the MAC-CE, a medium access control layer control unit, where the RRC signaling indicates an indication information set, and the MAC-CE indicates one indication information in the indication information set; or,

The indication information and the time domain resource allocation table jointly indicate that the demodulation reference signal is configured in one or more transmission occasions TO of K repeated transmissions, the first setting row or the first setting row in the time domain resource allocation table Indicate the instruction information.

The first setting row may be a row used to indicate the setting of the indication information in the time domain resource configuration table, and the position of the row is not limited. The first setting row may be a row used to indicate the setting of the indication information in the time domain resource configuration table, and the position of the row is not limited. It should be noted that the "first" and "second" in this manual are only used to distinguish the corresponding content. For example, the "first" and "second" in the first setting row and the second setting row are only used to distinguish Set the line.

In one embodiment, configuring the DMRS according to the instruction information includes:

The K times of repeated transmission of TOs are grouped according to the instruction information, and the TOs included in each group share one or more DMRSs.

In one embodiment, the position of the TO configured with the DMRS in each group is pre-appointed; or the position of the TO configured with the DMRS in each group is determined by one of the following methods: the second communication node indicates an offset value within the group, so The offset value in the group indicates the offset between the TO where the DMRS is configured in each group and the first TO; the TO position of the DMRS is indicated jointly with the time domain resource configuration table, and the second setting row in the time domain resource configuration table is or The second setting column indicates the position of the TO where the DMRS is configured in the group.

The location of the pre-appointed TO is not limited here, and can be any location, such as the location of the first TO. The offset value in a group can be considered as the offset between the TO configured with the DMRS and the first TO in the group. The second setting row and the second setting column can be respectively considered as the setting row and the setting column indicating the position of the TO where the DMRS is configured in the group.

In one embodiment, the first setting row, the second setting row, the third setting row, the fourth setting row, and the fifth setting row may be the same or different. The first setting row, the second setting row, and the third setting row , The fourth setting row and the fifth setting row can be the same or different.

In one embodiment, the TO packet is repeatedly transmitted based on K times, and the repeated transmission includes a nominal repeated transmission or an actual repeated transmission.

In one embodiment, the number of packets of K repeated transmissions of TO included in the indication information implicitly indicates the number of frequency hopping for K repeated transmissions.

In one embodiment, the indication information is a DMRS pattern, and the DMRS pattern indicates that one or more TOs in the K repeated transmissions of the TO configure a DMRS;

Wherein, the DMRS pattern is indicated through signaling, and the signaling includes RRC signaling or downlink control information; or,

The DMRS pattern is jointly indicated through RRC signaling and downlink control information, the RRC signaling indicates a DMRS pattern set, and the downlink control information indicates a DMRS pattern in the DMRS pattern set; or,

The DMRS pattern is jointly indicated through RRC signaling and MAC-CE, the RRC signaling indicates a DMRS pattern set, and the MAC-CE indicates a DMRS pattern in the DMRS pattern set; or,

The DMRS pattern and the time domain resource configuration table jointly indicate that the demodulation reference signal is configured in one or more transmission occasions TO of K repeated transmissions, the third setting column or the third setting row in the time domain resource configuration table Indicates the DMRS pattern.

Exemplarily, the DMRS pattern can be coded jointly with the time domain resource configuration table, and the time domain resource configuration table has a column of indications for the DMRS pattern. When the base station needs to configure a certain DMRS pattern for the UE, it is sufficient to indicate to the UE a row corresponding to the DMRS pattern in the time domain resource configuration table. {1, 4, 7} can be indicated in the DMRS pattern, indicating that there is a DMRS on the 1, 4, and 7th repeatedly transmitted TOs.

In an embodiment, the method further includes one of the following:

In the case of a conflict in the symbol where the DMRS is located, the DMRS is transmitted on other symbols in the TO where the DMRS is located, and the other symbols are symbols other than the conflicting symbols on the TO where the DMRS is located;

In the case of a TO conflict where the DMRS is located, the DMRS is transmitted in the next available TO;

In the conflict TO, the symbol where the DMRS is located does not conflict, and the DMRS is transmitted on the symbol.

In one embodiment, in the case of a TO conflict, the group in which the TO is located is regrouped, and the time-domain continuous TOs are regrouped into a group, and the DMRS is based on the new grouping configuration.

When TO conflicts, that is, the TOs in a group are not continuous, the group can be regrouped, and the newly generated group can be configured with DMRS, that is, share DMRS.

In an embodiment, the method further includes:

Determine the transmission position of the uplink control information (Uplink control information, UCI).

The location of UCI can be determined based on repeated transmission of PUCCH and PUSCH carrying UCI, which is not limited here.

In one embodiment, determining the transmission location of UCI includes:

When one or more repeated transmissions of the physical uplink control channel PUCCH carrying UCI and the physical uplink shared channel PUSCH overlap in the time domain, the UCI is multiplexed and sent on one or more repeated transmissions of the PUSCH. At least one of the repeated transmissions of one or more PUSCHs includes a DMRS;

Among them, the repeated transmission of one or more PUSCHs multiplexed meets one of the following conditions:

The multiplexed one or more repeated transmissions of PUSCH are repeated transmissions that overlap with the PUCCH carrying UCI;

The repeated transmission of one or more PUSCHs that are multiplexed is a repeated transmission of one PUSCH that does not overlap with the PUCCH carrying UCI but contains DMRS, and the repeated transmission is the repeated transmission closest to the start or end position of the PUCCH carrying UCI;

The repeated transmission of one or more PUSCHs that are multiplexed does not overlap with the PUCCH carrying UCI and does not include the repeated transmission of one or more PUSCHs of DMRS;

The multiplexed one or more repeated transmissions of PUSCH are repeated transmissions of the same group;

Repeated transmission is nominal repeated transmission or actual repeated transmission;

PUSCH repeated transmission carries transport block TB or uplink shared channel UL-SCH;

The time domain length of all multiplexed repeated transmissions is greater than 1 symbol;

All the multiplexed repeated transmission TO meets the timeline requirement.

In an embodiment, the repeated transmission overlapping with the PUCCH carrying UCI satisfies one of the following conditions:

The repeated transmission includes a DMRS; if the repeated transmission does not include a DMRS, the DMRS for the repeated transmission is restored according to the configuration of the DMRS in the current agreement TO.

In an embodiment, repeated transmission of a PUSCH that does not overlap with the PUCCH carrying UCI but contains DMRS meets one of the following conditions:

Among the repeated transmissions of all PUSCHs that do not overlap with the PUCCH carrying UCI but include DMRS, the one that is closest to the time domain position of the PUCCH start or end symbol;

Among all repeated transmissions of all PUSCHs that contain DMRS in the same group, the one closest to the time domain position of the PUCCH start symbol or end symbol is repeated.

In one embodiment, the repeated transmissions of one or more PUSCHs that do not overlap with the PUCCH carrying UCI and do not include DMRS are located at the time domain position and bearer of the repeated transmission of a PUSCH that does not overlap with the PUCCH carrying UCI but includes DMRS. The middle position of the time domain position of the repeated transmission TO of one or more PUCCHs overlapping the PUCCH of the UCI.

In one embodiment, determining the transmission location of UCI includes:

In one of the following cases, UCI is sent on the first repeated transmission containing DMRS, and the repeated PUSCH transmission carries TB or UL-SCH:

UCI is aperiodic channel state information (Channel State Information, CSI) scheduled by Downlink Control Information (DCI) or semi-static CSI enabled;

The first time domain symbol of repeated transmission is greater than 1;

The first repetitive transmission is nominal repetitive transmission or actual repetitive transmission. The nominal repetitive transmission and the actual repetitive transmission have the same or different time-frequency domain positions.

In one embodiment, determining the transmission position of UCI includes: UCI is sent on the first repeated transmission of the first group; or sent on the first repeated transmission of other groups that meet the timeline requirement.

In one embodiment, determining the transmission location of UCI includes:

When one or more repeated transmissions of the PUCCH carrying UCI overlap with the PUSCH in the time domain, UCI sends the PUCCH carrying UCI without sending one or more repeated transmissions of the PUSCH overlapping the PUCCH in the time domain;

Among them, the PUCCH carrying UCI is repeatedly sent, and one or more repeated transmissions of the PUCCH that overlaps the PUCCH carrying PUCCH in the group are not sent.

In an embodiment, the method further includes:

Determine the time-frequency domain resources occupied by UCI. When determining the position in the time-frequency domain, the determination can be made based on the related content of the grouping, which is not limited here.

In an embodiment, the determining the time-frequency domain resources occupied by UCI includes:

According to a set of repeated transmissions, the number of all coded modulation symbols in each layer of UCI information is determined.

In one embodiment, the number of all coded modulation symbols in each layer of UCI information does not exceed the total number of resources on multiplexed repeated transmissions in the group.

In one embodiment, when UCI multiplexing is repeatedly transmitted, it is carried from the first Orthogonal Frequency Division Multiplexing (OFDM) symbol that does not carry DMRS. That is, the UCI bearer is located after the DMRS symbol, and immediately following the symbol where the DMRS is located.

In one embodiment, the number of all coded modulation symbols in each layer of UCI information is determined based on the number of symbols for all PUSCH transmissions in a group.

In one embodiment, all symbols for transmitting PUSCH include non-transmissible symbols; or, all symbols for transmitting PUSCH do not include non-transmissible symbols.

In an embodiment, the method further includes:

A group of repeated transmissions including one or more PUSCH repeated transmissions is determined as a PUSCH transmission mechanism, and the PUSCH transmission timing bundle includes all transmission opportunities in a group of repeated transmissions.

In one embodiment, the transmission power of repeated transmissions within a group is the same.

In an embodiment, the method further includes:

The redundant version RV pattern of the PUSCH to be repeatedly transmitted is determined according to the group index. In this embodiment, the RV pattern is determined based on the group. You can poll for judgment within a group or between groups.

In one embodiment, the RV flags in the same group are the same; or, the RV flags are polled between different groups; or the RV flags are polled within the group. Polling between groups means that each RV mark is polled between groups in turn. Polling in the group means that each RV mark is polled in the group.

In an embodiment, the method further includes:

According to the group index, determine the transmission precoding matrix indicator (Transmission precoding matrix Indicator, TPMI) index for repeatedly transmitting the PUSCH. The TPMI corresponding to different group indexes may be the same or different.

In an embodiment, the TPMI indexes of the same group are the same; or, the TPMI indexes corresponding to the same repeated transmission index of different groups are the same.

In an embodiment, the method further includes:

According to the longest group or the shortest group in the time domain, the transport block size for repeated transmission of the PUSCH is determined.

In one embodiment, for one or more repeated transmissions in a group, the timing advance is determined based on the group, and the repeated transmission timing advances in a group are the same.

In one embodiment, the symbol position of the DMRS in the TO is coded jointly with the time domain resource configuration table, and the fifth setting row or the fifth setting column of the time domain resource configuration table indicates the symbol position of the DMRS in the TO.

The fifth setting row may be a setting row indicating the symbol position of the DMRS in TO. The fifth setting column may be a setting column indicating the symbol position of the DMRS in TO.

In an exemplary embodiment, this specification also provides a configuration method. FIG. 2 is a schematic flow diagram of another configuration method provided in an embodiment of this specification. This method can be applied to the situation of improving coverage performance. The device can be implemented by software and/or hardware and integrated on a second communication node, which includes but is not limited to a base station. The details of this embodiment are not yet exhaustive, please refer to the above-mentioned embodiment.

As shown in Figure 2, the configuration method provided in this manual includes the following steps:

S210. Determine instruction information, where the instruction information indicates to configure a demodulation reference signal in one or more transmission occasions TO of K repeated transmissions, where K is a positive integer.

The second communication node can instruct the first communication node to configure the demodulation reference signal in one or more transmission occasions TO of K repeated transmissions through the instruction information. The content of the instruction information can be determined according to the actual situation, and there is no limitation here.

S220. Transmit the instruction information.

After determining the instruction information, this step can transmit the instruction information to the first communication node.

The configuration method provided by this example in this manual effectively configures the DMRS shared by multiple TOs for the first communication node through the determined instruction information, which improves the coverage performance.

On the basis of the above-mentioned embodiment, a modified embodiment of the above-mentioned embodiment is proposed. It should be noted here that, in order to make the description concise, only the differences from the above-mentioned embodiment are described in the modified embodiment.

In one embodiment, the indication information indicates the number of packets for K repeated transmissions or the number of repeated TOs in a group of K repeated transmissions.

In an embodiment, the indication information is indicated through radio resource control RRC signaling or downlink control information; or,

The indication information is indicated through a joint indication of RRC signaling and downlink control information, the RRC signaling indicates an indication information set, and the downlink control information indicates one indication information in the indication information set; or,

The indication information is indicated jointly by RRC signaling and MAC-CE, the RRC signaling indicates an indication information set, and the MAC-CE indicates one indication information in the indication information set; or,

The indication information and the time domain resource allocation table jointly indicate that the demodulation reference signal is configured in one or more transmission occasions TO of K repeated transmissions, the first setting row or the first setting row in the time domain resource allocation table Indicate the instruction information.

In one embodiment, the indication information is used to group K repeated transmissions of TOs, and the TOs included in each group share one or more DMRSs.

In one embodiment, the position of the TO configured with the DMRS in each group is predetermined; or the position of the TO configured with the DMRS in each group is determined by one of the following methods: the second communication node indicates an offset value within the group, The offset value in the group indicates the offset between the TO where the DMRS is configured in each group and the first TO; the TO position of the DMRS is indicated jointly with the time domain resource configuration table, and the second setting row in the time domain resource configuration table Or the second setting column indicates the position of the TO where the DMRS is configured in the group.

In one embodiment, the TO packet is repeatedly transmitted based on K times, and the repeated transmission includes a nominal repeated transmission or an actual repeated transmission.

In one embodiment, the number of packets of K repeated transmissions of TO included in the indication information implicitly indicates the number of frequency hopping for K repeated transmissions.

In one embodiment, the indication information is a DMRS pattern, and the DMRS pattern indicates that one or more TOs in the K repeated transmissions of the TO configure a DMRS;

Wherein, the DMRS pattern is indicated through signaling, and the signaling includes RRC signaling or downlink control information; or,

The DMRS pattern is jointly indicated through RRC signaling and downlink control information, the RRC signaling indicates a DMRS pattern set, and the downlink control information indicates a DMRS pattern in the DMRS pattern set; or,

The DMRS pattern is jointly indicated through RRC signaling and MAC-CE, the RRC signaling indicates a DMRS pattern set, and the MAC-CE indicates a DMRS pattern in the DMRS pattern set; or,

The DMRS pattern and the time domain resource configuration table jointly indicate that the demodulation reference signal is configured in one or more transmission occasions TO of K repeated transmissions, the third setting column or the third setting row in the time domain resource configuration table Indicates the DMRS pattern.

In an embodiment, the method further includes one of the following:

In the case of a conflict in the symbol where the DMRS is located, the DMRS is transmitted on other symbols in the TO where the DMRS is located, and the other symbols are symbols other than the conflicting symbols on the TO where the DMRS is located;

In the case of a TO conflict where the DMRS is located, the DMRS is transmitted in the next available TO;

In the conflict TO, the symbol where the DMRS is located does not conflict, and the DMRS is transmitted in the symbol.

In one embodiment, in the case of a TO conflict, the group in which the TO is located is regrouped, and the time-domain continuous TOs are regrouped into a group, and the DMRS is based on the new grouping configuration.

In an embodiment, the method further includes:

When one or more repeated transmissions of the physical uplink control channel PUCCH carrying UCI and the physical uplink shared channel PUSCH overlap in the time domain, the UCI is multiplexed and sent on one or more repeated transmissions of the PUSCH. At least one of the repeated transmissions of one or more PUSCHs includes a DMRS;

Among them, the repeated transmission of one or more PUSCHs multiplexed meets one of the following conditions:

The multiplexed one or more repeated transmissions of PUSCH are repeated transmissions that overlap with the PUCCH carrying UCI;

The repeated transmission of one or more PUSCHs that are multiplexed is a repeated transmission of one PUSCH that does not overlap with the PUCCH carrying UCI but contains DMRS, and the repeated transmission is the repeated transmission closest to the start or end position of the PUCCH carrying UCI;

The repeated transmission of one or more PUSCHs that are multiplexed does not overlap with the PUCCH carrying UCI and does not include the repeated transmission of one or more PUSCHs of DMRS;

The multiplexed one or more repeated transmissions of PUSCH are repeated transmissions of the same group;

Repeated transmission is nominal repeated transmission or actual repeated transmission;

PUSCH repeated transmission carries transport block TB or uplink shared channel UL-SCH;

The time domain length of all multiplexed repeated transmissions is greater than 1 symbol;

The multiplexed repeated transmission TO meets the timeline requirement.

In an embodiment, the repeated transmission overlapping with the PUCCH carrying UCI satisfies one of the following conditions:

The repeated transmission includes a DMRS; if the repeated transmission does not include a DMRS, the DMRS for the repeated transmission is restored according to the configuration of the DMRS in the current agreement TO.

In an embodiment, repeated transmission of a PUSCH that does not overlap with the PUCCH carrying UCI but contains DMRS meets one of the following conditions:

Among the repeated transmissions of all PUSCHs that do not overlap with the PUCCH carrying UCI but include DMRS, the one that is closest to the time domain position of the PUCCH start or end symbol;

Among all repeated transmissions of all PUSCHs that contain DMRS in the same group, the one closest to the time domain position of the PUCCH start symbol or end symbol is repeated.

In one embodiment, the repeated transmissions of one or more PUSCHs that do not overlap with the PUCCH carrying UCI and do not include DMRS are located at the time domain position and bearer of the repeated transmission of a PUSCH that does not overlap with the PUCCH carrying UCI but includes DMRS. The middle position of the time domain position of the repeated transmission TO of one or more PUCCHs overlapping the PUCCH of the UCI.

In an embodiment, in one of the following cases, UCI is sent on the first repeated transmission containing DMRS, and the repeated PUSCH transmission carries TB or UL-SCH:

UCI is aperiodic CSI scheduled by DCI or semi-static CSI enabled;

The first time domain symbol of repeated transmission is greater than 1;

The first repetitive transmission is nominal repetitive transmission or actual repetitive transmission. The nominal repetitive transmission and the actual repetitive transmission have the same or different time-frequency domain positions.

In one embodiment, UCI is sent on the first repeated transmission of the first group; or sent on the first repeated transmission of other groups that meet the timeline requirements.

In one embodiment, when one or more repeated transmissions of the PUCCH carrying UCI and PUSCH overlap in the time domain, UCI sends the PUCCH carrying UCI, but does not send one or more of the PUSCH that overlaps the PUCCH in the time domain. Sent on repeated transmissions;

Among them, the PUCCH carrying UCI is repeatedly sent, and one or more repeated transmissions of the PUCCH that overlaps the PUCCH carrying PUCCH in the group are not sent.

In one embodiment, a group of repeated transmissions is used to determine the number of all coded modulation symbols for each layer of UCI information.

In one embodiment, the number of all coded modulation symbols in each layer of UCI information does not exceed the total number of resources on multiplexed repeated transmissions in the group.

In one embodiment, when UCI multiplexing is repeatedly transmitted, it is carried from the first OFDM symbol that does not carry DMRS.

In one embodiment, the number of all coded modulation symbols in each layer of UCI information is determined based on the number of symbols for all PUSCH transmissions in a group.

In one embodiment, all symbols for transmitting PUSCH include non-transmissible symbols; or, all symbols for transmitting PUSCH do not include non-transmissible symbols.

In one embodiment, the PUSCH transmission timing bundle includes a group of repeated transmissions of one or more PUSCH repeated transmissions, and the PUSCH transmission timing bundle includes all transmission opportunities in a group of repeated transmissions.

In one embodiment, the transmission power of repeated transmissions within a group is the same.

In one embodiment, the redundant version RV pattern of the repeated PUSCH transmission is determined according to the group index.

In one embodiment, the RV flags in the same group are the same; or, the RV flags are polled between different groups; or the RV flags are polled within the group.

In one embodiment, the TPMI index of the repeated PUSCH transmission is determined according to the group index.

In an embodiment, the TPMI indexes of the same group are the same; or, the TPMI indexes corresponding to the same repeated transmission index of different groups are the same.

In one embodiment, the size of the transmission block for repeated PUSCH transmission is determined according to the longest group or the shortest group in the time domain.

In one embodiment, for one or more repeated transmissions in a group, the timing advance is determined based on the group, and the repeated transmission timing advances in a group are the same.

In one embodiment, the symbol position of the DMRS in the TO is coded jointly with the time domain resource configuration table, and the fifth setting row or the fifth setting column of the time domain resource configuration table indicates the symbol position of the DMRS in the TO.

In an exemplary embodiment, this specification also provides a configuration method. FIG. 3 is a schematic flow diagram of another configuration method provided in an embodiment of this specification. This method can be applied to the situation of improving coverage performance. Execution, the device can be implemented by software and/or hardware and integrated on the first communication node.

Refer to Figure 3, the configuration method provided in this manual includes the following steps:

S310. Obtain transmission timing offset information, where the transmission timing offset information indicates an offset between transmission timing TO for repeated transmission of the same transmission block.

The transmission timing offset information may indicate discrete transmission of TO.

Exemplarily, the UE is configured with a transmission timing offset through the RRC parameter to indicate the offset between TOs that repeatedly transmit the same transmission block.

S320: Determine the position of TO according to the transmission timing offset information.

After obtaining the transmission timing offset information, the position of TO can be determined based on the offset indicated by the transmission timing offset.

This example in this manual provides a configuration method that effectively implements the discrete transmission of TO by transmitting timing offset information to improve coverage performance.

On the basis of the above-mentioned embodiment, a modified embodiment of the above-mentioned embodiment is proposed. It should be noted here that, in order to make the description concise, only the differences from the above-mentioned embodiment are described in the modified embodiment.

In one embodiment, the offset includes a time domain offset or a frequency domain offset.

In one embodiment, the transmission timing offset information is indicated through RRC signaling or downlink control information; or,

The transmission timing offset information is jointly indicated through RRC signaling and downlink control information, the RRC signaling indicates an offset set, and the downlink control information indicates one transmission timing offset information in the offset set; or,

The transmission offset information is indicated jointly by RRC signaling and MAC-CE, the RRC signaling indicates an offset set, and the MAC-CE indicates one transmission timing offset information in the offset set; or,

The transmission offset information is indicated jointly with the time domain resource allocation table, and the fourth setting row or the fourth setting row in the time domain resource allocation table indicates the transmission offset information.

In one embodiment, the magnitude of the fineness of the transmission timing frequency shift information is one of the following: one or more symbols; one or more transmission timing lengths; one or more time slot lengths.

In an exemplary embodiment, this specification also provides a configuration method. FIG. 4 is a schematic flowchart of another configuration method provided in an embodiment of this specification. This method can be applied to the situation of improving coverage performance. Execution, the device can be implemented by software and/or hardware and integrated on the second communication node.

Refer to Figure 4, the configuration method provided in this manual includes the following steps:

S410. Determine the transmission timing offset information, where the transmission timing offset information indicates the offset between transmission timings TO for repeated transmission of the same transmission block.

The second communication node may determine the frequency shift indicated by the transmission timing offset information based on actual conditions to implement discrete transmission of TO. There is no limitation here.

S420: Transmit the transmission timing offset information.

After determining the transmission timing offset information, the second communication node may transmit the transmission timing offset information to the first communication node to control the first communication node to perform discrete transmission between TOs in the time domain.

The configuration method provided by this example in this specification effectively controls the first communication node to perform discrete transmission between TOs in the time domain through the determined transmission timing offset, and improves the coverage performance.

On the basis of the above-mentioned embodiment, a modified embodiment of the above-mentioned embodiment is proposed. It should be noted here that, in order to make the description concise, only the differences from the above-mentioned embodiment are described in the modified embodiment.

In one embodiment, the offset includes a time domain offset or a frequency domain offset.

In one embodiment, the transmission timing offset information is indicated through RRC signaling or downlink control information; or,

The transmission timing offset information is jointly indicated through RRC signaling and downlink control information, the RRC signaling indicates an offset set, and the downlink control information indicates one transmission timing offset information in the offset set; or,

The transmission offset information is indicated jointly by RRC signaling and MAC-CE, the RRC signaling indicates an offset set, and the MAC-CE indicates one transmission timing offset information in the offset set; or,

The transmission offset information is indicated jointly with the time domain resource allocation table, and the fourth setting row or the fourth setting row in the time domain resource allocation table indicates the transmission offset information.

In one embodiment, the magnitude of the fineness of the transmission timing frequency shift information is one of the following: one or more symbols; one or more transmission timing lengths; one or more time slot lengths.

The configuration method provided by the embodiment of this specification will be exemplified as follows:

The configuration method provided in the embodiment of this specification can be regarded as an indication method for enhanced coverage. At the 86th RAN plenary meeting, the coverage enhancement targets for specific scenarios of FR1 and FR2 were determined, and potential solutions for downlink and uplink were studied. This manual provides methods to enhance cell coverage.

In the current fifth generation mobile communication technology (the Fifth Generation Mobile Communication Technology, 5G) technology, in order to ensure coverage and short transmission time to transmit low-latency and high-reliability services, the introduction of aggregate transmission based on dynamic scheduling (i.e. Transport Block Aggregation for Uplink Transmission) and repetitive transmission without scheduling (i.e. Transport Block Repetition for Uplink Transmission with a Configured Grant). Among them, in the R16 standard, it is necessary to enhance the repeated transmission of the Physical Uplink Shared Channel (PUSCH) or the Transport Block (TB), that is, there is one or more than one repeated transmission in the same time slot The same PUSCH or TB, or the same PUSCH or TB is repeatedly transmitted across the time slot boundary on multiple consecutive time slots. That is, the time domain position of the first nominal repetition is determined according to the start symbol and the time domain duration notified by the time domain resource allocation table (TDRA) notified by the base station, and the remaining nominal repetition K- is determined by combining the repetition number K. The first transmission position is back-to-back with the first nominal repetition, that is, back-to-back continuous time domain allocation. When a nominal repetition encounters a slot boundary or a non-transmissible symbol, the nominal repetition will be divided into multiple actual repetitions.

In the R17 standard, it is necessary to further enhance the repeated transmission of PUSCH or TB to meet the coverage requirements. For example, by reducing the DMRS overhead, more Resource Element (RE) resources are used for data transmission, that is, multiple actual repetitions are Share the same DMRS pattern. The current DMRS is semi-statically configured, and the DMRS is configured at each transmission timing TO in repeated transmissions. How to configure the shared DMRS is a problem that needs to be solved. Fewer DMRS, that is, after DMRS-less, there will be some repeated transmissions or there is only data on the time domain resources of the PUSCH without DMRS. In this case, how to specify the UE behavior when encountering different channel conflicts needs to be considered. In addition, how to determine which actual duplicates share the same DMRS pattern also needs to be considered. For example, it is determined by grouping that multiple actual duplicates in the same group share the same DMRS pattern. Then, whether the transmit power of the UE to send uplink transmission is determined according to the same group or according to different actual repetitions. In some embodiments, it is determined whether the PUSCH redundancy version (Redundancy version, RV) id is determined according to the same group or Judging by different actual repetitions, these issues need to be considered.

This manual solves the above technical problems through the following technical means:

1. This manual configures fewer DMRSs through instruction information, that is, DMRS-less. In the Rel-15/16 protocol, DMRS is semi-statically configured, and DMRS is configured in each TO of repeated transmission. Increasing the configuration of DMRS can improve the accuracy of channel estimation and increase the resources for DMRS transmission. Correspondingly, the resources used for data transmission are reduced. When the data rate is not reduced, the bit rate of data transmission becomes higher, which will reduce the coverage performance. This manual reduces the resource allocation of DMRS and shares DMRS among multiple TOs, allowing more resources to be used for data transmission, thereby reducing the code rate of data transmission and improving coverage performance. This manual reduces the configuration of DMRS in the following ways:

Solution 1: Configure DMRS-less based on grouping

Group according to the number of repeated transmissions K, and indicate the number of groups M to the UE. The number of TOs in each group in the first M-1 group (the number of groups) N is floor (M/K) or round (M/K) , The number in the last group is K-(M-1)*N, and the TOs in a group share DMRS. The position of the TO configured with the DMRS in each group can be fixed, and a position of the TO in a group is preset, such as the first TO in each group. In this way, after the UE receives the number of transmissions K and the number of packets M, the UE knows which repeated transmission TO the DMRS is located in, and the DMRS-less pattern is determined.

In some embodiments, after grouping according to the number of repeated transmissions, the position of the TO configured with the DMRS in each group is not fixed. The position of the DMRS is determined by configuring an offset value, which is for the first TO in each group.的Offset.

In some embodiments, the number of repeated transmissions may be grouped based on the nominal number of repeated transmissions. After the base station indicates the number of repeated transmissions K to the UE, the grouping is performed based on the configured nominal repeated transmission K.

In some embodiments, the number of repeated transmissions may be grouped based on the actual number of repeated transmissions. After the base station indicates the number of repeated transmissions K to the UE, the actual number of repeated transmissions by the UE becomes K1, at this time, grouping is performed based on the actual repeated transmission of K1.

In some embodiments, the number of groups may be directly indicated by RRC, DCI, or a set of groups may be configured through RRC, and then one of the values may be indicated by DCI. In addition, the number of groups can also be coded jointly with the TDRA table. A column is added to the TDRA table to indicate the number of groups. When indicating time domain resources and the number of repetitions, the number of groups M is indicated together.

In some embodiments, the UE may also be configured with the number N of TOs sharing the DMRS, and the DMRS is shared on N consecutive TOs, and the DMRS is located in one or more of the N TOs.

In some embodiments, the number of packets can be used to implicitly indicate the frequency hopping of repeated transmissions, that is, the number of HOPs. The number of groups is the number of frequency hopping, and TOs in one frequency hopping share the DMRS.

In some embodiments, the DMRS symbol position of the TO in the group and the group may be jointly coded with TDRA. A row in the TDRA table contains the group number of the group and the symbol of the DMRS in the TO with DMRS in the group.

Solution 2: Configure a DMRS-less pattern

According to the number of repeated transmissions K, configure a DMRS-less pattern based on TO. The DMRS pattern indicates whether DMRS is configured in the repeated transmission TO. Drawing).

In some embodiments, a DMRS-less pattern is directly configured for the UE through RRC signaling or a set of DMRS-less patterns is configured through RRC signaling. DCI indicates a DMRS-less pattern in the set, and the DMRS-less pattern indicates repetition. The transmission index. The indicated repeated transmission index indicates that there is a DMRS on the TO, and the absence of a repeated transmission index indicates that there is no DMRS on the TO. For example, {1, 4, 7} is indicated in the DMRS-less pattern, indicating that there is a DMRS on the 1, 4, and 7th repeatedly transmitted TOs.

In some embodiments, the DMRS-less pattern can be coded jointly with the TDRA table, and the TDRA table has a list of indications for the DMRS-less pattern. When the base station wants to configure a certain DMRS-less pattern for the UE, it is sufficient to indicate to the UE a row corresponding to the DMRS-less pattern in the TDRA table.

2. This manual also solves the technical problem of DMRS conflict. After the base station configures DMRS-less for the UE, the repeatedly transmitted TO needs to perform channel estimation based on the configured shared DMRS. Due to the change of the frame structure, the TO conflicts with the frame structure and the DMRS cannot be sent. Figure 4a is provided for this embodiment of the specification. A schematic diagram of transmission conflict. As shown in Figure 4a, the first TO in group 2 in Figure 4a conflicts with the frame structure. This TO needs to be discarded. There is no DMRS in group 2, which will seriously affect the accuracy of channel estimation. , Causing data demodulation to fail. How to solve the DMRS conflict in the DMRS-less scenario is very necessary.

In the case of a TO conflict, the group of the TO is regrouped, and the time-domain continuous TOs are regrouped into a group, and the DMRS is based on the new grouping configuration. Referring to Figure 4a, the second TO in group 2 conflicts with the frame structure. This specification can regroup group 2 and set the third and fourth TOs in the original group 2 as the new group 2. The new group 2 is configured with DMRS. Assuming that only the second TO in the second row of group 2 conflicts with the frame structure, when regrouping, the first TO can be used as the new group 2, and the third and fourth TOs can be used as the group 3. Configure DMRS for the new group 2 and group 3.

Method 1: Transmit DMRS on the conflict TO (if the symbol where the DMRS is in conflict, then transmit on other symbols).

Method 2: Postpone the DMRS to the next TO for transmission.

In some embodiments, if the symbol of the DMRS in the conflict TO does not conflict with the frame structure or other transmissions, at this time, the DMRS may not be discarded, and the DMRS may continue to be sent.

In some embodiments, if the TO cannot be transmitted due to a TO conflict, the DMRS is postponed to the next TO to be sent.

In some embodiments, if it is in a group, if the TOs in the group are no longer continuous in the time domain due to conflicts, then the group is split, and the TOs in the group that are continuously transmitted in the time domain form a new group. , The DMRS in the new group is located in the first TO in the group.

3. This manual also obtains the time domain diversity gain. Increasing time-domain transmission diversity by configuring discontinuous TOs in the time domain is also a way to enhance coverage. The current protocol does not support discrete transmission between TOs in the time domain. R-15 is based on time slot, namely slot-based repetitive transmission. The transmission is repeated once in a time slot, and the time slot for multiple repeated transmissions is continuous; R-16 introduces mini-slot based, namely mini-slot based The micro-time slot of repeated transmission is back-to-back. This specification can indicate to the UE that the transmission of the same TB that is repeatedly transmitted in the time domain is discrete in the following ways:

Solution 1: Configure a transmission timing offset information for the UE through RRC parameters, that is, configure an offset set with offset or RRC parameters, and then indicate the offset set to the UE through DCI or MAC CE, such as a value in the offset string, Or, the transmission timing offset information is jointly encoded with the TDRA table, and a column is added to the TDRA table to configure the transmission timing offset information. The meaning of the transmission timing offset information is the offset between repeated transmissions of the same TB. Among them, the subtle size of the transmission timing offset information can be one or several symbols, one or several TO lengths, and one or several time slot lengths.

4. This manual uses the following methods to enhance repetitive transmission:

Example 1: When PUSCH or TB is repeatedly transmitted on multiple consecutive time slots, Figure 4b is a schematic diagram of repeated transmission provided by the embodiment of this specification. See Figure 4b. Nominal repetition #3 is because it crosses the time slot boundary. Nominal repetition #3 is divided into actual repetition Rep #3 and actual repetition Rep #4. Rep#1, Rep#2, and Rep#3 share the same DMRS, where the time domain position of the DMRS is on the first symbol of Rep #1, that is, symbol #4 on time slot #n. Rep#4 and Rep#5 share the same DMRS, where the time domain position of the DMRS is on the first symbol of Rep#4, that is, symbol #0 on time slot #n+1.

It should be noted that Rep#1, Rep#2, Rep#3, Rep#4 and Rep#5 in this manual can be considered as actual repeated transmission (ie actual transmission) 1, actual repeated transmission 2, actual repeated transmission 3 , The actual repeated transmission 4 and the actual repeated transmission 5. That is, Rep represents the actual repeated transmission. "#" can be considered as the number of times.

For the current PUSCH transmission procedure, the UE also sends UCI information. The UCI information can be carried on the PUCCH or on the PUSCH. Then how UCI is transmitted on PUSCH is determined by the following methods:

Method 1: When one or more repeated transmissions of PUCCH and PUSCH carrying UCI overlap in the time domain, UCI multiplexing is sent on one or more repeated transmissions of PUSCH. Wherein, the repeated transmission of the UCI multiplexing in one or more PUSCHs is that at least one of the repeated transmissions contains DMRS information.

In some embodiments, at least one of the repeated transmissions of the one or more PUSCHs includes DMRS information, and its main feature includes at least one of the following:

The one or more PUSCH repeated transmissions are repeated transmissions overlapping with PUCCH;

Or, repeated transmission of a PUSCH that does not overlap with PUCCH but contains DMRS information;

Or, one or more PUSCHs that do not overlap with PUCCH and do not contain DMRS information are repeatedly transmitted.

Or, the repeated transmission of the one or more PUSCHs is repeated transmission in the same group.

In some embodiments, the one or more PUSCH repeated transmissions are repeated transmissions overlapping with PUCCH, and its main features include at least one of the following:

The one or more PUSCH repeated transmissions are repeated transmissions that overlap with PUCCH and include DMRS information;

Alternatively, the one or more PUSCH repeated transmissions are repeated transmissions that overlap with PUCCH and do not contain DMRS information, but the DMRS information is restored on the repeated transmissions for UCI multiplexing, that is to say according to the configuration of the DMRS pattern specified by the standard Information, re-determine the time domain location of the repeated transmission of DMRS information, so that the repeated transmission includes the DMRS information.

In some embodiments, the main feature of the repeated transmission of a PUSCH that does not overlap with PUCCH but contains DMRS information includes at least one of the following:

The repeated transmission of a PUSCH that does not overlap with PUCCH but contains DMRS information refers to the one of the repeated transmissions of all PUSCHs that does not overlap with PUCCH but contains DMRS information that is closest to the time domain position of the PUCCH start or end symbol. There is no concept of group in this method.

Alternatively, the repeated transmission of a PUSCH that does not overlap with the PUCCH but contains DMRS information refers to the one that is closest to the PUCCH start or end symbol time domain position among all the repeated transmissions of all PUSCHs that contain DMRS information in the same group Repeated transmission, there is a concept of group in this example.

In some embodiments, the one or more PUSCH repeated transmissions that do not overlap with PUCCH and do not include DMRS information, the main feature of which is that the one or more PUSCH repeats that do not overlap with PUCCH and do not include DMRS information The time domain position of the transmission is the middle position between the time domain position of the repeated transmission of a PUSCH that does not overlap with the PUCCH but contains DMRS information and the time domain position of the one or more PUSCH repeated transmissions that overlap with the PUCCH. .

In some embodiments, the PUSCH repeated transmission is nominal repeated transmission or actual repeated transmission.

In some embodiments, the PUSCH repeated transmission carries TB or UL-SCH;

In some embodiments, the length of the time domain of the repeated transmission of the UCI multiplexing in one or more PUSCHs is not 1 symbol, that is, greater than 1 symbol.

時間。所述任意一個PDSCH是指所述UCI內包含的混合自動重傳請求（Hybrid Automatic Repeat reQuest，HARQ）應答，即HARQ-ACK碼本對應的一或多個PDSCH(s)。In some embodiments, the repeated transmission of the UCI multiplexing in one or more PUSCHs meets the timeline, that is, the timeline requirement, where the timeline refers to the provisions in section 9.2.5 of the standard 38.213, for example, refers to the first The start symbol of the PUSCH or PUCCH to start transmission must meet the following timeline condition: the start symbol is not earlier than the end of any PDSCH

time. The any one PDSCH refers to a Hybrid Automatic Repeat reQuest (Hybrid Automatic Repeat reQuest, HARQ) response included in the UCI, that is, one or more PDSCH(s) corresponding to the HARQ-ACK codebook.

For example 1a, "The one or more PUSCH repeated transmissions are repeated transmissions overlapping with PUCCH, and its main characteristics include at least one of the following:

The one or more PUSCH repeated transmissions are repeated transmissions that overlap with PUCCH and include DMRS information;

Alternatively, the one or more PUSCH repeated transmissions are repeated transmissions that overlap with PUCCH and do not contain DMRS information, but the DMRS information is restored on the repeated transmissions for UCI multiplexing, that is to say according to the configuration of the DMRS pattern specified by the standard Information, re-determine the time domain position of the repeated transmission of DMRS information, so that the repeated transmission includes DMRS information" example. Figure 4c is a schematic diagram of another repeated transmission provided by the embodiment of this specification. See Figure 4c, PUCCH It carries UCI information, the PUCCH overlaps with Rep#3 of group 1, and Rep#3 contains DMRS information, then UCI is multiplexed on Rep#3. Moreover, Rep#1~Rep#3 belong to group 1, Rep #4~Rep#5 belongs to group 2.

It may also be that the PUCCH carries UCI information, and the PUCCH overlaps with Rep#3 of group 1, but Rep#3 does not contain DMRS information. Then first restore the DMRS of Rep#3, that is, according to the configuration information of the DMRS pattern specified in the Rel-15/16 agreement, re-determine the time domain location of the DMRS information of Rep#3, and then UCI multiplex On Rep#3.

Example 1b For "the repeated transmission of a PUSCH that does not overlap with PUCCH but contains DMRS information, its main characteristics include at least one of the following:

The repeated transmission of a PUSCH that does not overlap with the PUCCH but contains DMRS information refers to the one that is closest to the PUCCH start or end symbol time domain position among the repeated transmissions of all PUSCHs that does not overlap with the PUCCH but contains DMRS information.

Alternatively, the repeated transmission of a PUSCH that does not overlap with the PUCCH but contains DMRS information refers to the one that is closest to the PUCCH start or end symbol time domain position among all the repeated transmissions of all PUSCHs that contain DMRS information in the same group Repeated transmission" example. Figure 4d is a schematic diagram of another repeated transmission provided by the embodiment of this specification. See Figure 4d. PUCCH carries UCI information. The PUCCH overlaps with Rep#3 of group 1, but Rep#3 does not contain DMRS. Information, Rep#3 shares the DMRS on Rep#2. Also, Rep#1~Rep#3 belong to group 1, Rep#4~Rep#5 belong to group 2.

Then UCI information is multiplexed to send on Rep#2, because Rep#2 is the closest repeated transmission to the starting point of PUCCH in the time domain compared to Rep#1 (including DMRS). That is, UCI information is multiplexed and sent together on Rep#2 and Rep#3.

For example 1c, for "the one or more PUSCH repeated transmissions that do not overlap with PUCCH and do not contain DMRS information, the main feature is that the one or more PUSCH repeated transmissions that do not overlap with PUCCH and do not include DMRS information The time domain position is the middle position between the time domain position of a PUSCH repeated transmission that does not overlap with PUCCH but contains DMRS information and the time domain position of the one or more PUSCH repeated transmissions overlapped with PUCCH" example . Referring to Figure 4b, PUCCH carries UCI information. The PUCCH overlaps with Rep#3 of group 1, but Rep#3 does not contain DMRS information. Rep#3 shares the DMRS on Rep#1, and Rep#2 does not contain DMRS information. Rep#2 shares the DMRS on Rep#1. In addition, Rep#1~Rep#3 belong to group 1, and Rep#4~Rep#5 belong to group 2. Then UCI information is multiplexed and sent together on Rep#1, Rep#2, and Rep#3.

Method 2: UCI is sent on the first repeated transmission of PUSCH, and the PUSCH transmission does not carry TB or UL-SCH. Its main characteristics include at least one of the following:

In some embodiments, the first repeated transmission may be a nominal repeated transmission or an actual repeated transmission. And the nominal repetitive transmission is the same as the actual repetitive transmission, that is, the position in the time-frequency domain is the same.

In some embodiments, the UCI information is carried on the PUCCH, and the first repeated transmission overlaps the PUCCH in the time domain; and the UCI multiplexing to the first repeated transmission meets the timeline requirement.

Alternatively, in some embodiments, the UCI information may be DCI scheduled aperiodic CSI (i.e., aperiodic CSI) or enabled semi-static CSI (i.e., activates semi-persistent CSI report).

In some embodiments, the UE assumes that the nominal number of repeated transmissions is 1, and does not refer to the number of repetitions in the TDRA table notified by the base station.

In some embodiments, the first nominal repeat transmission contains DMRS information.

In some embodiments, UCI is transmitted on the first nominal repeat transmission in a certain group. Different PUSCH repeated transmissions can be classified according to different groups.

Method 3: UCI is sent on the first repeated transmission including DMRS, and the PUSCH transmission carries TB or UL-SCH. Its main characteristics include at least one of the following;

The UCI information is aperiodic CSI scheduled by DCI. In some embodiments, the UE does not expect the time domain length of the first repeated transmission to be 1 symbol, that is, the first repeated transmission of t is greater than 1 symbol.

In some embodiments, the time-frequency domain position of the first repetitive transmission and the first nominal repetitive transmission may be the same or different.

In some embodiments, different PUSCH repeated transmissions may be classified according to different groups, and the UCI information is sent on the first repeated transmission of the first group. In some embodiments, other groups satisfying the timeline may also be used.

Method 4: PUCCH carrying UCI (the UCI is repeatedly transmitted) and one or more repeated transmissions of PUSCH overlap in the time domain. When the PUCCH carrying UCI is repeatedly transmitted multiple times, its main features include at least one of the following one:

The PUCCH carrying UCI is sent, and one or more repeated transmissions of the PUSCH overlapping with the PUCCH in the time domain are not sent. In some embodiments, the one or more repeated transmissions of the PUSCH overlapping with the PUCCH time domain are in the same group, so one or more repeated transmissions of the PUSCH overlapping with the PUCCH time domain in the group are not sent. One or more repeated transmissions of the PUSCH that do not overlap with the PUCCH time domain can be sent.

Example 2: In Example 1, it is determined that UCI is transmitted on a certain repeated transmission, then how to determine the time-frequency domain resources occupied by UCI during the repeated transmission transmission can be obtained by the following method:

Method 1: Determine the number of all coded modulation symbols in each layer of UCI information based on a set of repetitions, and the set of repetitions includes one or more repetitions. In some embodiments, the number of all coded modulation symbols of each layer of information of the UCI is limited to not exceed the total number of resources of multiplexing in the repetition of the group. Its main characteristics include at least one of the following:

In some embodiments, each layer of information in the number of all modulation symbols in each layer of information refers to HARQ-ACK (Hybrid ARQ), CSI part 1 (Channel-State Information), And CSI part 2.

In some embodiments, the group of repetitions means that different PUSCH repetitions may be classified according to different groups. For example, Rep#1~Rep#3 belong to group 1, and Rep#4~Rep#5 belong to group 2. The UCI information carried on the PUCCH overlaps with group 1 Rep#3 in the time domain. According to the provisions of Example 1, UCI can be multiplexed to transmit on Rep #1 of group 1 containing DMRS information. Then the calculation of the number of all coded modulation symbols of UCI is determined according to all the time-frequency domain resources of all repeated transmissions of group 1.

In some embodiments, the number of all coded modulation symbols defining each layer of information of the UCI does not exceed the total number of resources multiplexed on repetitions in the group. For example, UCI must be multiplexed to transmit on Rep #1 of group 1 containing DMRS information. The number of all coded modulation symbols of UCI cannot exceed the number of available time-frequency domain resources of Rep#1.

In some embodiments, when UCI is multiplexed on the repetition, it is carried from the first OFDM symbol that does not carry DMRS.

In some embodiments, PUSCH transmission carries TB or UL-SCH.

(1)For example, the following formula (1) is shown: Take Fig. 4b as an example, take the UCI information as HARQ-ACK as an example, and calculate the number of modulation symbols for transmitting each layer of information.

(1)

是OFDM符元l 用來傳輸UCI的資源元素（resource elements，RE）數，l =0，1，2，...，

是一組內所有傳輸PUSCH的符元數取值，包括不可傳輸符元。在一些實施例中，承載DMRS的OFDM符元對應的

=0，對於沒有承載DMRS的某個OFDM符元，要將該符元內的PT-RS開銷扣除掉。in,

Is the number of resource elements (RE) used by OFDM symbol l to transmit UCI, l = 0, 1, 2, ...,

It is the value of the number of symbols for all PUSCH transmissions in a group, including non-transmissible symbols. In some embodiments, the OFDM symbol carrying DMRS corresponds to

=0, for a certain OFDM symbol that does not carry DMRS, the PT-RS overhead in the symbol should be deducted.

是UCI多工在該實際重複上的OFDM符元l 上的RE數，l =0，1，2，...，

是UCI多工在該實際重複上的時域符元取值。不包括不可傳輸符元。在一些實施例中，承載DMRS的OFDM符元對應的

=0，對於沒有承載DMRS的某個OFDM符元，要將該符元內的PT-RS（phase-tracking RS，相位追蹤導頻）開銷扣除掉。

Is the number of REs on the OFDM symbol l of the actual repetition of UCI multiplexing , l = 0, 1, 2, ...,

It is the value of the time domain symbol of UCI multiplexing on the actual repetition. Does not include non-transmissible symbols. In some embodiments, the OFDM symbol carrying DMRS corresponds to

=0, for a certain OFDM symbol that does not carry DMRS, the PT-RS (phase-tracking RS, phase tracking pilot) overhead in the symbol should be deducted.

Example 3: When PUSCH or TB is repeatedly transmitted on multiple consecutive time slots, when these multiple repeated transmissions are shared by different groups for DMRS, for these repeated uplink transmissions, the PUSCH transmission timing can be determined by the following method i and the corresponding transmission power, namely transmission power.

Method 1: PUSCH transmission timing i refers to a group of transmissions including one or more PUSCH repeated transmissions.

Taking Figure 4b as an example, Rep#1~Rep#3 belong to group 1, and Rep#4~Rep#5 belong to group 2. Then the PUSCH transmission timing i is group 1 or group 2, that is, the transmission power of Rep#1~Rep#3 in group 1 is the same, and the transmission power of Rep#4~Rep#5 in group 2 is the same. The transmission power between group 1 and group 2 may be different.

（2）In some embodiments, the transmit power at PUSCH transmission timing i is determined by the following formula (2):

(2)

是BPRE函式，是每個RE上承載的bits數。計算該變數需要獲得傳輸時機i的同一組內所有傳輸PUSCH的符元數以及頻域的子載波數。in,

It is the BPRE function, which is the number of bits carried on each RE. To calculate this variable, it is necessary to obtain the number of symbols of all PUSCH transmissions in the same group and the number of subcarriers in the frequency domain at the transmission timing i.

In some embodiments, the number of frequency domain subcarriers on a certain symbol corresponding to the transmission timing i does not include DMRS and PT-RS. The transmission timing i is the number of symbols for all PUSCH transmissions in the same group. In some embodiments, the number of symbols for all PUSCH transmissions includes the number of symbols that cannot be transmitted.

Example 4: When PUSCH or TB is repeatedly transmitted on multiple consecutive time slots, when these multiple repeated transmissions are shared by different groups for DMRS, for these uplink repeated transmissions, the following method can be used to determine the multiple repetitions The RV pattern of PUSCH is transmitted.

Method 1: Repeated transmission of the RV pattern of the PUSCH multiple times is determined sequentially in the time domain according to the group index.

In some embodiments, the RV id in the same group is the same.

As shown in Figure 4a, the RV pattern configured by the base station is {0, 2, 3, 1}, and then the RV pattern is determined in a loop between different groups from the front to the back in the time domain. For example, the RV id of group 1 is 0, and the RV id of group 2 is 2, which means that the RV id of rep#1~rep#2 of group 1 are all 0; the RV id of rep#3~rep#5 of group 2 is 0. Both are 2.

Method 2: Multiple repeated transmission of the RV pattern of the PUSCH is determined sequentially in the time domain based on the same repeated transmission index of different groups. That is, the RV pattern is determined by polling between groups.

Fig. 4e is a schematic diagram of RV pattern determination provided by an embodiment of this specification. Referring to Fig. 4e, the RV pattern configured by the base station is {0, 2, 3, 1}, then the RV id of rep#1 of group 1 is 0, group 2 The RV id of rep#1 is 2, the RV id of rep#2 of group 1 is 3, the RV id of rep#2 of group 2 is 1, and the RV id of rep#3 of group 2 is 0.

Method 3: In some embodiments, the RV pattern is determined sequentially in the time domain based on the number of repeated transmissions in the same group. That is, the RV pattern is determined by polling within the group.

Fig. 4f is another schematic diagram of RV pattern determination provided by the embodiment of this specification. See Fig. 4f. The RV pattern configured by the base station is {0, 2, 3, 1}, then the RV id of rep#1 of group 1 is 0, The RV id of rep#1 of 2 is 0, the RV id of rep#2 of group 1 is 2, the RV id of rep#2 of group 2 is 2, and the RV id of rep#3 of group 2 is 3.

Example 5: When PUSCH or TB is repeatedly transmitted on multiple time slots, when these multiple repeated transmissions are shared by different groups for DMRS, for these uplink repeated transmissions, the following method can be used to determine the multiple repeated transmissions TPMI index of PUSCH.

Method 1: The TPMI index of the PUSCH repeatedly transmitted multiple times is determined according to the group.

In some embodiments, the TPMI indexes of the same group are the same, and the TPMI indexes of different groups may be different. That is to say, all duplicate TPMI indexes of the same group are the same.

Method 2: The TPMI index corresponding to the same repeated transmission index of different groups is the same.

As shown in Figure 4e, rep#1 of group 1 and rep#1 of group 2 have the same TPMI index, rep#2 of group 1 and rep#2 of group 2 have the same TPMI index, and rep#3 of group 2 is independent One of the TPMI indexes.

Example 6: When PUSCH or TB is repeatedly transmitted on multiple time slots, when these multiple repeated transmissions are shared by different groups for DMRS sharing, for these uplink repeated transmissions, the following method can be used to determine the multiple repeated transmissions The transport block size (TBS) of PUSCH.

Method 1: TBS is determined according to the longest group in the time domain.

For example, as shown in Figure 4f, TBS is determined according to Rep#1~Rep#3 of group 1, because it contains the largest number of time domains and contains non-transmissible symbols.

Method 2: TBS is determined according to the shortest group in the time domain.

Fig. 4g is a schematic diagram of a transmission block size determination provided by an embodiment of this specification. For example, as shown in Fig. 4g, TBS is determined according to Rep#4~Rep#5 of group 2, because it contains the least number of time domains and includes untransmissible Of the symbol.

Example 7: When PUSCH or TB is repeatedly transmitted on multiple time slots, when these multiple repeated transmissions are shared by different groups for DMRS, for these uplink repeated transmissions, the following method can be used to determine the multiple repeated transmissions The timing advance (TA) of PUSCH.

Method 1: TA is determined according to groups, and the timing advance is calculated according to a group as a whole.

Fig. 4g is a schematic diagram of determining the timing advance provided by an embodiment of the specification. As shown in Fig. 4g, the TA is determined according to Rep#1~Rep#3 of group 1 and Rep#4~Rep#5 of group 2.

In an exemplary embodiment, this specification provides a configuration device. FIG. 5 is a schematic structural diagram of a configuration device provided in an embodiment of this specification. The device can be integrated on the first communication node. See FIG. 5, the device includes : Obtaining module 51, set to obtain instruction information;

The configuration module 52 is configured to configure the demodulation reference channel DMRS according to the instruction information;

Wherein, the indication information indicates that the demodulation reference signal is configured in one or more transmission occasions TO of K repeated transmissions, and K is a positive integer.

The configuration device provided in this embodiment is set to implement the configuration method of the embodiment shown in FIG. 1. The implementation principles and technical effects of the configuration device provided in this embodiment are similar to the configuration method of the embodiment shown in FIG. Repeat it again.

On the basis of the above-mentioned embodiment, a modified embodiment of the above-mentioned embodiment is proposed. It should be noted here that, in order to make the description concise, only the differences from the above-mentioned embodiment are described in the modified embodiment.

In one embodiment, the indication information indicates the number of packets for K repeated transmissions or the number of repeated TOs in a group of K repeated transmissions.

In an embodiment, the indication information is indicated through radio resource control RRC signaling or downlink control information; or,

The indication information is indicated through a joint indication of RRC signaling and downlink control information, the RRC signaling indicates an indication information set, and the downlink control information indicates one indication information in the indication information set; or,

The indication information is indicated jointly by RRC signaling and MAC-CE, the RRC signaling indicates an indication information set, and the MAC-CE indicates one indication information in the indication information set; or,

The indication information and the time domain resource allocation table jointly indicate that the demodulation reference signal is configured in one or more transmission occasions TO of K repeated transmissions, the first setting row or the first setting row in the time domain resource allocation table Indicate the instruction information.

In one embodiment, the configuration module 52 is set to:

The K times of repeated transmission of TOs are grouped according to the instruction information, and the TOs included in each group share one or more DMRSs.

In one embodiment, the position of the TO configured with the DMRS in each group is pre-appointed; or the position of the TO configured with the DMRS in each group is determined by one of the following methods: the second communication node indicates an offset value within the group, so The offset value in the group indicates the offset between the TO where the DMRS is configured in each group and the first TO; the TO position of the DMRS is indicated jointly with the time domain resource configuration table, and the second setting row in the time domain resource configuration table is or The second setting column indicates the position of the TO where the DMRS is configured in the group.

In one embodiment, the TO packet is repeatedly transmitted based on K times, and the repeated transmission includes a nominal repeated transmission or an actual repeated transmission.

In one embodiment, the number of packets of K repeated transmissions of TO included in the indication information implicitly indicates the number of frequency hopping for K repeated transmissions.

In one embodiment, the indication information is a DMRS pattern, and the DMRS pattern indicates that one or more TOs in the K repeated transmissions of the TO configure a DMRS;

Wherein, the DMRS pattern is indicated through signaling, and the signaling includes RRC signaling or downlink control information; or,

The DMRS pattern is jointly indicated through RRC signaling and downlink control information, the RRC signaling indicates a DMRS pattern set, and the downlink control information indicates a DMRS pattern in the DMRS pattern set; or,

The DMRS pattern is jointly indicated through RRC signaling and MAC-CE, the RRC signaling indicates a DMRS pattern set, and the MAC-CE indicates a DMRS pattern in the DMRS pattern set; or,

The DMRS pattern and the time domain resource configuration table jointly indicate that the demodulation reference signal is configured in one or more transmission occasions TO of K repeated transmissions, the third setting column or the third setting row in the time domain resource configuration table Indicates the DMRS pattern.

In one embodiment, the device further includes a transmission module set to one of the following:

In the case of a conflict in the symbol where the DMRS is located, the DMRS is transmitted on other symbols of the TO where the DMRS is located, and the other symbols are symbols other than the conflicting symbols on the TO where the DMRS is located;

In the case of a TO conflict where the DMRS is located, the DMRS is transmitted in the next available TO;

In the conflict TO, the symbol where the DMRS is located does not conflict, and the DMRS is transmitted on the symbol.

In one embodiment, in the case of a TO conflict, the group in which the TO is located is regrouped, and the time-domain continuous TOs are regrouped into a group, and the DMRS is based on the new grouping configuration.

In one embodiment, the device further includes: a determination module, set to:

Determine the transmission location of the uplink control information UCI.

In one embodiment, the determination module is set to:

When one or more repeated transmissions of the physical uplink control channel PUCCH carrying UCI and the physical uplink shared channel PUSCH overlap in the time domain, UCI is multiplexed and sent on one or more repeated transmissions of PUSCH. At least one of the repeated transmissions of one or more PUSCHs includes a DMRS;

Among them, the repeated transmission of one or more PUSCHs multiplexed meets one of the following conditions:

The multiplexed one or more repeated transmissions of PUSCH are repeated transmissions that overlap with the PUCCH carrying UCI;

The repeated transmission of one or more PUSCHs that are multiplexed is a repeated transmission of one PUSCH that does not overlap with the PUCCH carrying UCI but contains DMRS, and the repeated transmission is the repeated transmission closest to the start or end position of the PUCCH carrying UCI;

The repeated transmission of one or more PUSCHs that are multiplexed does not overlap with the PUCCH carrying UCI and does not include the repeated transmission of one or more PUSCHs of DMRS;

The multiplexed one or more repeated transmissions of PUSCH are repeated transmissions of the same group;

Repeated transmission is nominal repeated transmission or actual repeated transmission;

PUSCH repeated transmission carries transport block TB or uplink shared channel UL-SCH;

The time domain length of all multiplexed repeated transmissions is greater than 1 symbol;

All the multiplexed repeated transmission TO meets the timeline requirement.

In an embodiment, the repeated transmission overlapping with the PUCCH carrying UCI satisfies one of the following conditions:

The repeated transmission includes a DMRS; if the repeated transmission does not include a DMRS, the DMRS for the repeated transmission is restored according to the configuration of the DMRS in the current agreement TO.

In an embodiment, repeated transmission of a PUSCH that does not overlap with the PUCCH carrying UCI but contains DMRS meets one of the following conditions:

Among the repeated transmissions of all PUSCHs that do not overlap with the PUCCH carrying UCI but include DMRS, the one that is closest to the time domain position of the PUCCH start or end symbol;

Among all repeated transmissions of all PUSCHs that contain DMRS in the same group, the one closest to the time domain position of the PUCCH start symbol or end symbol is repeated.

In one embodiment, the repeated transmission of one or more PUSCHs that does not overlap with the PUCCH carrying UCI and does not include DMRS is located at the time domain position and the bearer of the repeated transmission of one PUSCH that does not overlap with the PUCCH carrying UCI but includes DMRS. The middle position of the time domain position of the repeated transmission TO of one or more PUCCHs overlapping the PUCCH of the UCI.

In one embodiment, the determination module is set to:

In one of the following cases, UCI is sent on the first repeated transmission containing DMRS, and the repeated PUSCH transmission carries TB or UL-SCH:

UCI is aperiodic CSI scheduled by DCI or semi-static CSI enabled;

The first time domain symbol of repeated transmission is greater than 1;

The first repetitive transmission is nominal repetitive transmission or actual repetitive transmission. The nominal repetitive transmission and the actual repetitive transmission have the same or different time-frequency domain positions.

In one embodiment, the determination module is set to: UCI is sent on the first repeated transmission of the first group; or sent on the first repeated transmission of other groups that meet the timeline requirement.

In one embodiment, the determination module is set to:

When one or more repeated transmissions of the PUCCH carrying UCI overlap with the PUSCH in the time domain, UCI sends the PUCCH carrying UCI and does not send one or more repeated transmissions of the PUSCH overlapping the PUCCH in the time domain;

Among them, the PUCCH carrying UCI is repeatedly sent, and one or more repeated transmissions of the PUCCH that overlaps the PUCCH carrying PUCCH in the group are not sent.

In one embodiment, the device further includes a resource determination module configured to:

Determine the time-frequency domain resources occupied by UCI.

In one embodiment, the resource determination module is configured to determine the number of all coded modulation symbols in each layer of UCI information based on a set of repeated transmissions.

In one embodiment, the number of all coded modulation symbols in each layer of UCI information does not exceed the total number of resources on multiplexed repeated transmissions in the group.

In one embodiment, when UCI multiplexing is repeatedly transmitted, it is carried from the first OFDM symbol that does not carry DMRS.

In one embodiment, the number of all coded modulation symbols in each layer of UCI information is determined based on the number of symbols for all PUSCH transmissions in a group.

In one embodiment, all symbols for transmitting PUSCH include non-transmissible symbols; or, all symbols for transmitting PUSCH do not include non-transmissible symbols.

In one embodiment, the device further includes a chance determination module, which is set to:

A group of repeated transmissions including one or more repeated transmissions of PUSCH is determined as a PUSCH transmission opportunity bundle, and the PUSCH transmission opportunity bundle includes all transmission opportunities in a group of repeated transmissions.

In one embodiment, the transmission power of repeated transmissions within a group is the same.

In one embodiment, the device further includes a pattern determination module, which is set to:

The redundant version RV pattern of the PUSCH to be repeatedly transmitted is determined according to the group index.

In one embodiment, the RV flags in the same group are the same; or, the RV flags are polled between different groups; or the RV flags are polled within the group.

In one embodiment, the device further includes a TPMI index determination module, which is set to:

According to the group index, the TPMI index of the PUSCH to be repeatedly transmitted is determined.

In an embodiment, the TPMI indexes of the same group are the same; or, the TPMI indexes corresponding to the same repeated transmission index of different groups are the same.

In an embodiment, the device further includes a transmission block size determination module configured to:

According to the longest group or the shortest group in the time domain, the transport block size for repeated transmission of the PUSCH is determined.

In one embodiment, for one or more repeated transmissions in a group, the timing advance is determined based on the group, and the repeated transmission timing advances in a group are the same.

In one embodiment, the symbol position of the DMRS in the TO is coded jointly with the time domain resource configuration table, and the fifth setting row or the fifth setting column of the time domain resource configuration table indicates the symbol position of the DMRS in the TO.

In an exemplary embodiment, this specification provides a configuration device. FIG. 6 is a schematic structural diagram of another configuration device provided in an embodiment of this specification. The device can be integrated on the second communication node. See FIG. 6, the device It includes: a determination module 61, configured to determine instruction information, the instruction information instructing to configure a demodulation reference signal in one or more transmission occasions TO of K repeated transmissions, and K is a positive integer;

The transmission module 62 is configured to transmit instruction information.

The configuration device provided in this embodiment is set to implement the configuration method of the embodiment shown in FIG. 2. The implementation principles and technical effects of the configuration device provided in this embodiment are similar to the configuration method of the embodiment shown in FIG. Repeat it again.

On the basis of the above-mentioned embodiment, a modified embodiment of the above-mentioned embodiment is proposed. It should be noted here that, in order to make the description concise, only the differences from the above-mentioned embodiment are described in the modified embodiment.

In one embodiment, the indication information indicates the number of packets for K repeated transmissions or the number of repeated TOs in a group of K repeated transmissions.

In an embodiment, the indication information is indicated through radio resource control RRC signaling or downlink control information; or,

The indication information is indicated through a joint indication of RRC signaling and downlink control information, the RRC signaling indicates an indication information set, and the downlink control information indicates one indication information in the indication information set; or,

The indication information is indicated jointly by RRC signaling and MAC-CE, the RRC signaling indicates an indication information set, and the MAC-CE indicates one indication information in the indication information set; or,

The indication information and the time domain resource allocation table jointly indicate that the demodulation reference signal is configured in one or more transmission occasions TO of K repeated transmissions, the first setting row or the first setting row in the time domain resource allocation table Indicate the instruction information.

In one embodiment, the indication information is used to group K repeated transmissions of TOs, and the TOs included in each group share one or more DMRSs.

In one embodiment, the position of the TO configured with the DMRS in each group is pre-appointed; or the position of the TO configured with the DMRS in each group is determined by one of the following methods: the second communication node indicates an offset value within the group, so The offset value in the group indicates the offset between the TO where the DMRS is configured in each group and the first TO; the TO position of the DMRS is indicated jointly with the time domain resource configuration table, and the second setting row in the time domain resource configuration table is or The second setting column indicates the position of the TO where the DMRS is configured in the group.

In one embodiment, the TO packet is repeatedly transmitted based on K times, and the repeated transmission includes a nominal repeated transmission or an actual repeated transmission.

In one embodiment, the number of packets of K repeated transmissions of TO included in the indication information implicitly indicates the number of frequency hopping for K repeated transmissions.

In one embodiment, the indication information is a DMRS pattern, and the DMRS pattern indicates that one or more TOs in the K repeated transmissions of the TO configure a DMRS;

Wherein, the DMRS pattern is indicated through signaling, and the signaling includes RRC signaling or downlink control information; or,

The DMRS pattern is jointly indicated through RRC signaling and downlink control information, the RRC signaling indicates a DMRS pattern set, and the downlink control information indicates a DMRS pattern in the DMRS pattern set; or,

The DMRS pattern is jointly indicated through RRC signaling and MAC-CE, the RRC signaling indicates a DMRS pattern set, and the MAC-CE indicates a DMRS pattern in the DMRS pattern set; or,

The DMRS pattern and the time domain resource configuration table jointly indicate that the demodulation reference signal is configured in one or more transmission occasions TO of K repeated transmissions, the third setting column or the third setting row in the time domain resource configuration table Indicates the DMRS pattern.

In an embodiment, the device further includes one of the following:

In the case of a conflict in the symbol where the DMRS is located, the DMRS is transmitted on other symbols in the TO where the DMRS is located, and the other symbols are symbols other than the conflicting symbols on the TO where the DMRS is located;

In the case of a TO conflict where the DMRS is located, the DMRS is transmitted in the next available TO;

In the conflict TO, the symbol where the DMRS is located does not conflict, and the DMRS is transmitted in the symbol.

In one embodiment, in the case of a TO conflict, the group in which the TO is located is regrouped, and the time-domain continuous TOs are regrouped into a group, and the DMRS is based on the new grouping configuration.

In one embodiment, when one or more repeated transmissions of the physical uplink control channel PUCCH carrying UCI and the physical uplink shared channel PUSCH overlap in the time domain, UCI is multiplexed on one or more repeated transmissions of PUSCH Send, at least one of the repeated transmissions of one or more PUSCHs multiplexed includes a DMRS;

Among them, the repeated transmission of one or more PUSCHs multiplexed meets one of the following conditions:

The multiplexed one or more repeated transmissions of PUSCH are repeated transmissions that overlap with the PUCCH carrying UCI;

The repeated transmission of one or more PUSCHs that are multiplexed is a repeated transmission of one PUSCH that does not overlap with the PUCCH carrying UCI but contains DMRS, and the repeated transmission is the repeated transmission closest to the start or end position of the PUCCH carrying UCI;

The repeated transmission of one or more PUSCHs that are multiplexed does not overlap with the PUCCH carrying UCI and does not include the repeated transmission of one or more PUSCHs of DMRS;

The multiplexed one or more repeated transmissions of PUSCH are repeated transmissions of the same group;

Repeated transmission is nominal repeated transmission or actual repeated transmission;

PUSCH repeated transmission carries transport block TB or uplink shared channel UL-SCH;

The time domain length of all multiplexed repeated transmissions is greater than 1 symbol;

The multiplexed repeated transmission TO meets the timeline requirement.

In an embodiment, the repeated transmission overlapping with the PUCCH carrying UCI satisfies one of the following conditions:

The repeated transmission includes a DMRS; if the repeated transmission does not include a DMRS, the DMRS for the repeated transmission is restored according to the configuration of the DMRS in the current agreement TO.

In an embodiment, repeated transmission of a PUSCH that does not overlap with the PUCCH carrying UCI but contains DMRS meets one of the following conditions:

Among the repeated transmissions of all PUSCHs that do not overlap with the PUCCH carrying UCI but include DMRS, the one that is closest to the time domain position of the PUCCH start or end symbol;

Among all repeated transmissions of all PUSCHs that contain DMRS in the same group, the one closest to the time domain position of the PUCCH start symbol or end symbol is repeated.

In one embodiment, the repeated transmission of one or more PUSCHs that does not overlap with the PUCCH carrying UCI and does not include DMRS is located at the time domain position and bearer of the repeated transmission of the PUSCH that does not overlap with the PUCCH carrying UCI but contains DMRS. The middle position of the time domain position of the repeated transmission TO of one or more PUCCHs overlapping the PUCCH of the UCI.

In an embodiment, in one of the following cases, UCI is sent on the first repeated transmission containing DMRS, and the repeated PUSCH transmission carries TB or UL-SCH:

UCI is aperiodic CSI scheduled by DCI or semi-static CSI enabled;

The first time domain symbol of repeated transmission is greater than 1;

The first repetitive transmission is nominal repetitive transmission or actual repetitive transmission. The nominal repetitive transmission and the actual repetitive transmission have the same or different time-frequency domain positions.

In one embodiment, UCI is sent on the first repeated transmission of the first group; or sent on the first repeated transmission of other groups that meet the timeline requirements.

In one embodiment, when one or more repeated transmissions of the PUCCH carrying UCI and PUSCH overlap in the time domain, UCI sends the PUCCH carrying UCI and does not send one or more of the PUSCH that overlaps the PUCCH in the time domain. Sent on repeated transmissions;

Among them, the PUCCH carrying UCI is repeatedly sent, and one or more repeated transmissions of the PUCCH that overlaps the PUCCH carrying PUCCH in the group are not sent.

In one embodiment, a group of repeated transmissions is used to determine the number of all coded modulation symbols for each layer of UCI information.

In one embodiment, the number of all coded modulation symbols in each layer of UCI information does not exceed the total number of resources on multiplexed repeated transmissions in the group.

In one embodiment, when UCI multiplexing is repeatedly transmitted, it is carried from the first OFDM symbol that does not carry DMRS.

In one embodiment, the number of all coded modulation symbols in each layer of UCI information is determined based on the number of symbols for all PUSCH transmissions in a group.

In one embodiment, all symbols for transmitting PUSCH include non-transmissible symbols; or, all symbols for transmitting PUSCH do not include non-transmissible symbols.

In one embodiment, the PUSCH transmission timing bundle includes a group of repeated transmissions of one or more PUSCH repeated transmissions, and the PUSCH transmission timing bundle includes all transmission opportunities in a group of repeated transmissions.

In one embodiment, the transmission power of repeated transmissions within a group is the same.

In one embodiment, the redundant version RV pattern of the repeated PUSCH transmission is determined according to the group index.

In one embodiment, the RV flags in the same group are the same; or, the RV flags are polled between different groups; or the RV flags are polled within the group.

In one embodiment, the TPMI index of the repeated PUSCH transmission is determined according to the group index.

In an embodiment, the TPMI indexes of the same group are the same; or, the TPMI indexes corresponding to the same repeated transmission index of different groups are the same.

In one embodiment, the size of the transmission block for repeated PUSCH transmission is determined according to the longest group or the shortest group in the time domain.

In one embodiment, for one or more repeated transmissions in a group, the timing advance is determined based on the group, and the repeated transmission timing advances in a group are the same.

In one embodiment, the symbol position of the DMRS in the TO is coded jointly with the time domain resource configuration table, and the fifth setting row or the fifth setting column of the time domain resource configuration table indicates the symbol position of the DMRS in the TO.

In an exemplary embodiment, this specification provides a configuration device. FIG. 7 is a schematic structural diagram of another configuration device provided in an embodiment of this specification. The device can be integrated on the first communication node. See FIG. 7, the device Including: an acquisition module 71, configured to acquire transmission timing offset information, the transmission timing offset information indicating the offset between transmission timings TO of the same transmission block repeatedly; The offset information determines the position of TO.

The configuration device provided in this embodiment is set to implement the configuration method of the embodiment shown in FIG. 3. The implementation principles and technical effects of the configuration device provided in this embodiment are similar to the configuration method of the embodiment shown in FIG. Repeat it again.

On the basis of the above-mentioned embodiment, a modified embodiment of the above-mentioned embodiment is proposed. It should be noted here that, in order to make the description concise, only the differences from the above-mentioned embodiment are described in the modified embodiment.

In one embodiment, the offset includes a time domain offset or a frequency domain offset.

In one embodiment, the transmission timing offset information is indicated through RRC signaling or downlink control information; or,

The transmission timing offset information is jointly indicated through RRC signaling and downlink control information, the RRC signaling indicates an offset set, and the downlink control information indicates one transmission timing offset information in the offset set; or,

The transmission offset information is indicated jointly by RRC signaling and MAC-CE, the RRC signaling indicates an offset set, and the MAC-CE indicates one transmission timing offset information in the offset set; or,

The transmission offset information is indicated jointly with the time domain resource allocation table, and the fourth setting row or the fourth setting row in the time domain resource allocation table indicates the transmission offset information.

In one embodiment, the magnitude of the fineness of the transmission timing frequency shift information is one of the following: one or more symbols; one or more transmission timing lengths; one or more time slot lengths.

In an exemplary embodiment, this specification provides a configuration device. FIG. 8 is a schematic structural diagram of another configuration device provided in an embodiment of this specification. The device can be integrated on the first communication node. See FIG. 8, the device Including: a determining module 81, configured to determine transmission timing offset information, the transmission timing offset information indicating the offset between transmission timing TO for repeated transmission of the same transmission block;

The transmission module 82 is configured to transmit the transmission timing offset information.

The configuration device provided in this embodiment is set to implement the configuration method of the embodiment shown in FIG. 4. The implementation principle and technical effect of the configuration device provided in this embodiment are similar to the configuration method of the embodiment shown in FIG. Repeat it again.

On the basis of the above-mentioned embodiment, a modified embodiment of the above-mentioned embodiment is proposed. It should be noted here that, in order to make the description concise, only the differences from the above-mentioned embodiment are described in the modified embodiment.

In one embodiment, the offset includes a time domain offset or a frequency domain offset.

In one embodiment, the transmission timing offset information is indicated through RRC signaling or downlink control information; or,

The transmission timing offset information is jointly indicated through RRC signaling and downlink control information, the RRC signaling indicates an offset set, and the downlink control information indicates one transmission timing offset information in the offset set; or,

The transmission offset information is indicated jointly by RRC signaling and MAC-CE, the RRC signaling indicates an offset set, and the MAC-CE indicates one transmission timing offset information in the offset set; or,

The transmission offset information is indicated jointly with the time domain resource allocation table, and the fourth setting row or the fourth setting row in the time domain resource allocation table indicates the transmission offset information.

In one embodiment, the magnitude of the fineness of the transmission timing frequency shift information is one of the following: one or more symbols; one or more transmission timing lengths; one or more time slot lengths.

In an exemplary implementation, the embodiment of this specification also provides a first communication node. FIG. 9 is a schematic structural diagram of a first communication node provided in an embodiment of this specification. As shown in FIG. 9, the first communication node provided in this specification is shown in FIG. A communication node includes one or more processors 91 and a storage device 92; there may be one or more processors 91 in the first communication node. In FIG. 9, one processor 91 is taken as an example; the storage device 92 is set as One or more programs are stored; the one or more programs are executed by the one or more processors 91, so that the one or more processors 91 implement the configuration method as described in the embodiment of this specification.

The first communication node also includes: a communication device 93, an input device 94, and an output device 95.

The processor 91, the storage device 92, the communication device 93, the input device 94, and the output device 95 in the first communication node may be connected through a bus or other methods. In FIG. 9, the connection through a bus is taken as an example.

The input device 94 can be configured to receive input digital or character information, and to generate key signal input related to user settings and function control of the first communication node. The output device 95 may include a display device such as a display screen.

The communication device 93 may include a receiver and a transmitter. The communication device 93 is configured to send and receive information according to the control of the processor 91. Information includes but is not limited to instruction information.

The storage device 92, as a computer-readable storage medium, can be configured to store software programs, computer-executable programs, and modules, such as the program instructions/modules corresponding to the configuration method described in Figure 1 of this manual (for example, the acquisition in the configuration device Module 51 and configuration module 52); and program instructions/modules corresponding to the configuration method described in FIG. 3 (for example, the acquisition module 71 and the determination module 72 in the configuration device). The storage device 92 may include a storage program area and a storage data area. The storage program area may store an operating system and an application program required by at least one function; the storage data area may store data created based on the use of the first communication node. In addition, the storage device 92 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk memory device, flash memory device, or other non-volatile solid-state memory. Pieces. In some entities, the storage device 92 may include a memory set remotely relative to the processor 91, and these remote memories may be connected to the first communication node through a network. The entities of the aforementioned network include but are not limited to the Internet, corporate intranet, local area network, mobile communication network, and combinations thereof.

In an exemplary implementation, the embodiment of this specification also provides a second communication node. FIG. 10 is a schematic structural diagram of a second communication node provided by an embodiment of this specification. As shown in FIG. 10, the second communication node provided in this specification is shown in FIG. The second communication node includes one or more processors 101 and a storage device 102; there may be one or more processors 101 in the second communication node. In FIG. 10, one processor 101 is taken as an example; the storage device 102 is set as One or more programs are stored; the one or more programs are executed by the one or more processors 101, so that the one or more processors 101 implement the configuration method as described in the embodiments of this specification.

The second communication node further includes: a communication device 103, an input device 104, and an output device 105.

The processor 101, the storage device 102, the communication device 103, the input device 104, and the output device 105 in the second communication node may be connected through a bus or other methods. In FIG. 10, the connection through a bus is taken as an example.

The input device 104 can be configured to receive input digital or character information, and generate key signal input related to user settings and function control of the second communication node. The output device 105 may include a display device such as a display screen.

The communication device 103 may include a receiver and a transmitter. The communication device 103 is configured to send and receive information according to the control of the processor 101. Information includes but is not limited to instruction information.

The storage device 102, as a computer-readable storage medium, can be configured to store software programs, computer-executable programs, and modules, such as the program instructions/modules corresponding to the configuration method described in Figure 2 of this manual (for example, the determination in the configuration device Module 61 and transmission module 62); and program instructions/modules corresponding to the configuration method described in FIG. 4 (for example, the determination module 81 and the transmission module 82 in the configuration device). The storage device 102 may include a storage program area and a storage data area. The storage program area can store an operating system and an application required by at least one function; the storage data area can store data created based on the use of the second communication node. In addition, the storage device 102 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk memory device, flash memory device, or other non-volatile solid-state memory. Pieces. In some entities, the storage device 102 may include a memory set remotely relative to the processor 101, and these remote storage devices may be connected to the second communication node via a network. The entities of the aforementioned network include but are not limited to the Internet, corporate intranet, local area network, mobile communication network, and combinations thereof.

The embodiment of this specification also provides a storage medium, the storage medium stores a computer program, the computer program is executed by a processor to implement the method described in any embodiment of this specification, the storage medium stores the computer program, so When the computer program is executed by the processor, the configuration method described in any embodiment of this specification is implemented.

Such as the configuration method applied to the first communication node and the configuration method applied to the second communication node.

Wherein, the configuration method applied to the first communication node includes:

Obtain instruction information;

Configure the demodulation reference signal DMRS according to the instruction information;

Wherein, the indication information indicates that the demodulation reference signal is configured in one or more transmission occasions TO of K repeated transmissions, and K is a positive integer.

The configuration method applied to the first communication node includes:

Acquiring transmission timing offset information, where the transmission timing offset information indicates the offset between transmission timings TO when the same transmission block is repeatedly transmitted;

The position of TO is determined according to the transmission timing offset information.

The configuration method applied to the second communication node includes: determining instruction information, the instruction information instructing to configure a demodulation reference signal in one or more transmission occasions TO of K repeated transmissions, where K is a positive integer;

Transmission instruction information.

The configuration method applied to the second communication node includes: determining transmission timing offset information, where the transmission timing offset information indicates an offset between transmission timings TO when the same transmission block is repeatedly transmitted;

The transmission timing offset information is transmitted.

The computer storage media in the embodiments of this specification may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or a combination of any of the above. More generic examples (non-exhaustive serial) of computer-readable storage media include: electrical connections with one or more wires, portable computer disks, hard drives, random access memory (Random Access Memory, RAM), Read Only Memory (Read Only Memory, ROM), Erasable Programmable Read Only Memory (Erasable Programmable Read Only Memory, EPROM), flash memory, optical fiber, portable CD-ROM, Optical memory devices, magnetic memory devices, or any suitable combination of the foregoing. The computer-readable storage medium can be any tangible medium that contains or stores a program, and the program can be used by or in combination with an instruction execution system, device, or device.

The computer-readable signal medium may include a data signal propagated in baseband or as a part of a carrier wave, which carries computer-readable program codes. This propagated data signal can take many forms, including but not limited to: electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium. The computer-readable medium can send, propagate, or transmit a program for use by or in combination with an instruction execution system, device, or device .

The program code contained on the computer-readable medium can be transmitted by any suitable medium, including but not limited to: wireless, wire, optical cable, radio frequency (Radio Frequency, RF), etc., or any suitable combination of the above.

The computer program code used to perform the operations of this manual can be written in one or more programming languages or a combination thereof. The programming language includes object-oriented programming languages-such as Java, Smalltalk, C++, and also includes conventional procedural programming. Programming language-such as "C" language or similar programming language. The code can be executed entirely on the user’s computer, partly on the user’s computer, as a stand-alone software package, partly on the user’s computer and partly on the remote computer, or entirely on the remote computer or Execute on the server. In the case of a remote computer, the remote computer can be connected to the user's computer through any kind of network-including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer ( For example, using an Internet service provider to connect via the Internet).

The above are only exemplary embodiments of this specification, and are not used to limit the protection scope of this specification.

Those skilled in the art should understand that the term user equipment encompasses any suitable type of wireless user equipment, such as mobile phones, portable data processing devices, portable Internet browsers, or mobile mobile stations.

Generally speaking, the various embodiments of this specification can be implemented in hardware or dedicated circuits, software, logic or any combination thereof. For example, some aspects can be implemented in hardware, while other aspects can be implemented in firmware or software that can be executed by a controller, microprocessor, or other computer device, although this description is not limited thereto.

The embodiments of this specification can be implemented by executing computer program instructions by a data processor of a mobile device, for example, in a processor object, or through hardware, or through a combination of software and hardware. Computer program instructions can be assembly instructions, instruction set architecture (Instruction Set Architecture, ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages The source code or object code of.

The block diagram of any logic flow in the drawings of this specification can represent program steps, or can represent interconnected logic circuits, modules, and functions, or can represent a combination of program steps and logic circuits, modules, and functions. Computer programs can be stored in memory. The memory can have any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (Read-Only Memory, ROM), random access memory (Random Access) Memory, RAM), optical memory devices and systems (Digital Video Disc (DVD) or Compact Disk (CD)), etc. Computer-readable media may include non-transitory storage media. The data processor can be any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processing (DSP), and application-specific integrated circuits (Application Specific Integrated Circuits). , ASIC), programmable logic devices (Field-Programmable Gate Array, FGPA) and processors based on multi-core processor architecture.

Through exemplary and non-limiting examples, a detailed description of the exemplary embodiments of the present specification has been provided above. However, considering the accompanying drawings and claims, various modifications and adjustments to the above embodiments are obvious to those skilled in the art, but they do not deviate from the scope of this specification. Therefore, the proper scope of this specification will be determined based on the requirements.

S110, S120, S210, S220, S310, S320, S410, S420: steps 51: Obtain the module 52: Configure the module 61: Judgment module 62: Transmission module 71: Get module 72: Judgment module 81: Judgment module 82: Transmission module 91: processor 92: storage device 93: Communication device 94: Input device 95: output device 101: processor 102: storage device 103: communication device 104: input device 105: output device

FIG. 1 is a schematic flowchart of a configuration method provided by an embodiment of this specification; 2 is a schematic flowchart of another configuration method provided by an embodiment of this specification; FIG. 3 is a schematic flowchart of yet another configuration method provided by an embodiment of this specification; 4 is a schematic flowchart of another configuration method provided by an embodiment of this specification; FIG. 4a is a schematic diagram of a transmission conflict according to an embodiment of this specification; FIG. 4b is a schematic diagram of a repeated transmission provided by an embodiment of this specification; Figure 4c is a schematic diagram of yet another repeated transmission provided by an embodiment of the specification; FIG. 4d is a schematic diagram of yet another repeated transmission provided by an embodiment of this specification; Fig. 4e is a schematic diagram of RV pattern determination provided by an embodiment of the specification; Fig. 4f is another schematic diagram of RV pattern determination provided by an embodiment of the specification; FIG. 4g is a schematic diagram of determining the size of a transmission block according to an embodiment of the specification; Figure 5 is a schematic structural diagram of a configuration device provided by an embodiment of the specification; Figure 6 is a schematic structural diagram of yet another configuration device provided by an embodiment of this specification; FIG. 7 is a schematic structural diagram of yet another configuration device provided by an embodiment of this specification; FIG. 8 is a schematic structural diagram of another configuration device provided by an embodiment of the specification; FIG. 9 is a schematic structural diagram of a first communication node provided by an embodiment of this specification; FIG. 10 is a schematic structural diagram of a second communication node provided by an embodiment of this specification.

S110, S120: steps

Claims (45)

A configuration method, applied to a first communication node, includes: Get a piece of instruction information; Configure a demodulation reference signal (DMRS) according to the instruction information; Wherein, the indication information indicates that the demodulation reference signal is configured in one or more transmission occasions of K repeated transmissions, and K is a positive integer. The method according to claim 1, wherein the indication information indicates the number of packets for K repeated transmissions or the number of transmission opportunities included in a group of repeated transmissions. The method according to claim 1, wherein the instruction information satisfies one of the following conditions: The instruction information is indicated through a radio resource control (RRC) signaling or downstream control information; The instruction information is jointly indicated by the RRC signaling and the downlink control information, the RRC signaling indicates an indicator information set, and the downlink control information indicates an indicator information in the indicator information set; The indication information is indicated jointly by the RRC signaling and a medium access control layer control unit (MAC-CE), the RRC signaling indicates an indication information set, and the MAC-CE indicates an indication information in the indication information set; as well as The indication information and a time domain resource allocation table jointly indicate to configure the demodulation reference signal in one or more transmission occasions of K repeated transmissions, and the first setting row or the first setting row in the time domain resource allocation table indicates the Instructions information. The method according to claim 1, wherein the step of configuring the demodulation reference signal according to the instruction information includes: The K transmission opportunities are grouped according to the instruction information, and the transmission opportunities included in each group share one or more demodulation reference signals. The method according to claim 4, wherein: The position of the transmission timing of the demodulation reference signal in each group is pre-appointed; or The position of the transmission timing of the demodulation reference signal in each group is determined by one of the following methods: A second communication node indicates an offset value within a group, and the offset value within the group indicates the offset between the transmission timing of the demodulation reference signal configured in each group and the first transmission timing; The location of the transmission timing of the demodulation reference signal is jointly indicated with a time domain resource configuration table, and the second setting row or the second setting column in the time domain resource configuration table indicates the location of the transmission timing of the demodulation reference signal configured in the group. The method according to claim 4, wherein, in the case of grouping the transmission occasions of the K repeated transmissions, the repeated transmission includes a nominal repeated transmission or an actual repeated transmission. The method according to claim 1 or 2, wherein the number of packets of transmission occasions of K repeated transmissions included in the indication information implicitly indicates the number of frequency hopping of K repeated transmissions. The method according to claim 1, wherein the indication information is a demodulation reference signal pattern, and the demodulation reference signal pattern indicates one or more transmission timing configuration demodulation reference signals in K repeated transmissions; wherein, The demodulation reference signal pattern is indicated by a signaling, and the signaling includes RRC signaling or downlink control information; The demodulation reference signal pattern is indicated by a combination of RRC signaling and downlink control information, the RRC signaling indicates a demodulation reference signal pattern set, and the downlink control information indicates a demodulation reference signal in the demodulation reference signal pattern set pattern; The demodulation reference signal pattern is jointly indicated by an RRC signaling and a MAC-CE, the RRC signaling indicates the demodulation reference signal pattern set, and the MAC-CE indicates a demodulation reference signal in the demodulation reference signal pattern set Drawings; and, The demodulation reference signal pattern and a time domain resource configuration table jointly indicate that the demodulation reference signal is configured in one or more transmission occasions of K repeated transmissions, the third setting column or the third setting row in the time domain resource configuration table Indicates the demodulation reference signal pattern. The method according to claim 1, further including one of the following: In the case that the symbol of the demodulation reference signal conflicts, the demodulation reference signal is transmitted on another symbol of the transmission timing of the demodulation reference signal, and the other symbol is the transmission timing of the demodulation reference signal Symbols other than the conflicting symbol; In the case of a conflict in the transmission timing of the demodulation reference signal, the demodulation reference signal is transmitted at the next available transmission opportunity; and When the transmission timing conflicts but the symbol of the demodulation reference signal does not conflict, the demodulation reference signal is transmitted in the symbol of the demodulation reference signal. The method according to claim 2, wherein: In the case of a conflict in transmission timing, the group of the conflicting transmission timing is regrouped, and the continuous transmission timing in the time domain is regrouped into a group, and the demodulation reference signal is based on the new grouping configuration. The method according to claim 1, further comprising: Determine the transmission location of an uplink control information (UCI). The method according to claim 11, wherein the step of determining the transmission position of the UCI includes: When one or more repeated transmissions of the physical uplink control channel (PUCCH) and the physical uplink shared channel (PUSCH) carrying the UCI overlap in the time domain, the UCI is multiplexed on one or more repeated transmissions of the PUSCH Sending, at least one of the multiplexed PUSCH repeated transmissions includes a demodulation reference signal; Among them, the repeated transmission of one or more PUSCHs multiplexed meets one of the following conditions: The multiplexed one or more repeated transmissions of PUSCH are repeated transmissions that overlap with the PUCCH carrying the UCI; The repeated transmission of one or more PUSCHs that are multiplexed is a repeated transmission of a PUSCH that does not overlap with the PUCCH carrying the UCI but contains a demodulation reference signal, and the repeated transmission is the closest to the start or end position of the PUCCH carrying the UCI Repeated transmission; The repeated transmission of one or more PUSCHs that are multiplexed does not overlap with the PUCCH carrying the UCI, and does not include the repeated transmission of one or more PUSCHs of the demodulation reference signal; The multiplexed one or more repeated transmissions of PUSCH are repeated transmissions of the same group; The above repeated transmissions are nominal repeated transmissions or actual repeated transmissions; PUSCH repeated transmission carries transport block (TB) or uplink shared channel (UL-SCH); The time domain length of all multiplexed repeated transmissions is greater than 1 symbol; The transmission timing of all the multiplexed repeated transmissions meets the timeline requirement. The method according to claim 12, wherein the repeated transmission overlapping with the PUCCH carrying the UCI satisfies one of the following conditions: The repeated transmission includes a demodulation reference signal; and In the case that the repeated transmission does not include the demodulation reference signal, the demodulation reference signal of the repeated transmission is restored according to the configuration of the demodulation reference signal in the agreed transmission timing. The method according to claim 12, wherein the repeated transmission of a PUSCH that does not overlap with the PUCCH carrying the UCI but contains the demodulation reference signal satisfies one of the following conditions: Among the repeated transmissions of all PUSCHs that do not overlap with the PUCCH carrying the UCI but include the demodulation reference signal, the one that is closest to the PUCCH start or end symbol time domain position; and Among all the repeated transmissions of all PUSCHs in the same group that contain the demodulation reference signal, the one closest to the PUCCH start symbol or end symbol in the time domain is repeated. The method according to claim 12, wherein the repeated transmission of one or more PUSCHs that do not overlap with the PUCCH carrying the UCI and do not include a demodulation reference signal are located in the following positions: The time-domain position of the transmission timing of a PUSCH repeated transmission that does not overlap with the PUCCH carrying the UCI but contains the demodulation reference signal and the time-domain position of the transmission timing of the repeated transmission of one or more PUSCHs that overlap with the PUCCH carrying the UCI The middle position. The method according to claim 11, wherein the step of determining the transmission position of the UCI includes: In one of the following cases, the UCI is sent on a first repeated transmission containing a demodulation reference signal, and the repeated PUSCH transmission carries a transport block (TB) or an uplink shared channel (UL-SCH): The UCI is a non-periodic channel status information (CSI) scheduled by downlink control information (DCI) or half of static CSI enabled; The time domain symbol of the first repeated transmission is greater than 1; and The first repeated transmission is nominal repeated transmission or actual repeated transmission, and the time-frequency domain positions of the nominal repeated transmission and the actual repeated transmission are the same or different. The method according to claim 11, wherein determining the transmission position of the UCI includes: the UCI is sent on the first repeated transmission of the first group; or the first repeated transmission of other groups that meet the timeline requirement Send on. The method according to claim 11, wherein determining the transmission location of the UCI includes: When one or more repeated transmissions of the PUCCH and PUSCH carrying the UCI overlap in the time domain, the UCI sends the PUCCH carrying the UCI and does not send one or more repeated PUSCHs that overlap the PUCCH in the time domain. Send on transmission; Wherein, in the case that the PUCCH carrying the UCI is repeatedly transmitted, one or more repeated transmissions of the PUCCH overlapping with the carrying PUCCH in the group are not transmitted. The method according to claim 2, further including: Determine the time domain resources and frequency domain resources occupied by the UCI. The method according to claim 19, wherein the determining the time domain resources and frequency domain resources occupied by the UCI includes: According to a group of repeated transmissions, the number of all coded modulation symbols in each layer of the UCI is determined. The method according to claim 19, wherein, when the UCI multiplexing is repeatedly transmitted, it is carried from the first orthogonal frequency division multiplexing OFDM symbol that does not carry the demodulation reference signal. The method according to claim 19, wherein the number of all coded modulation symbols in each layer of information of the UCI is determined based on the number of all transmitted PUSCH symbols in a group. The method according to claim 22, wherein all symbols for transmitting PUSCH include non-transmissible symbols; or, all symbols for transmitting PUSCH do not include non-transmissible symbols. The method according to claim 2, further including: A group of repeated transmissions including one or more repeated transmissions of PUSCH is determined as a PUSCH transmission timing bundle, and the PUSCH transmission timing bundle includes all transmission opportunities in a group of repeated transmissions. The method according to claim 2, wherein: The transmission power of repeated transmissions within a group is the same. The method according to claim 2, further including: Determine the redundancy version RV pattern of the repeated transmission of the PUSCH according to a set of indexes. The method according to claim 26, wherein the RV mark satisfies one of the following conditions: The RV flags of one or more PUSCH repeated transmissions in the same group are the same; the RV flags are polled among different groups; and the RV flags are polled in one or more PUSCH repeated transmissions in the group. The method according to claim 2, further including: According to a set of indexes, it is determined that the transmission precoding matrix for repeatedly transmitting the PUSCH indicates the TPMI index. The method according to claim 28, wherein the TPMI indexes of the same group are the same; or, the TPMI indexes corresponding to the same repeated transmission index of different groups are the same. The method according to claim 2, further including: According to the longest group or the shortest group in the time domain, the transport block size for repeated transmission of the PUSCH is determined. The method according to claim 2, wherein: For one or more repeated transmissions in a group, the timing advance is determined based on the group, and the repeated transmission timing advances in a group are the same. The method according to claim 1, wherein the symbol position of the demodulation reference signal is jointly coded with a time domain resource configuration table, and the fifth setting row or the fifth setting column of the time domain resource configuration table indicates that the solution is in the transmission timing. Adjust the symbol position of the reference signal. A configuration method, applied to a second communication node, includes: Determine an indication information, the indication information indicates the configuration of the demodulation reference signal in one or more transmission occasions of K repeated transmissions, and K is a positive integer; Transmit the instruction information. A configuration method including: Acquiring transmission timing offset information, the transmission timing offset information indicating the offset between transmission timings of repeated transmission of the same transmission block; The position of the transmission timing is determined based on the transmission timing offset information. The method according to claim 34, wherein the offset includes a time domain offset or a frequency domain offset. The method according to claim 34, wherein the transmission timing offset information satisfies one of the following conditions: The transmission timing offset information is indicated through an RRC signaling or downstream control information; The transmission timing offset information is jointly indicated by an RRC signaling and downlink control information, the RRC signaling indicates an offset set, and the downlink control information indicates a transmission timing offset information in the offset set; The transmission offset information is indicated jointly by an RRC signaling and a MAC-CE, the RRC signaling indicates an offset set, and the MAC-CE indicates a transmission timing offset information in the offset set; and, The transmission offset information is indicated jointly with the time domain resource allocation table, and the fourth setting row or the fourth setting row in the time domain resource allocation table indicates the transmission offset information. The method according to claim 34, wherein the fineness of the transmission timing and frequency shift information is one of the following: One or more symbols; The length of one or more transmission opportunities; and One or more time slot lengths. A configuration method including: Determine a transmission timing offset information, the transmission timing offset information indicating the offset between transmission timings of repeated transmission of the same transmission block; and The transmission timing offset information is transmitted. A configuration device, configured on a first communication node, includes: An acquisition module, which is set to acquire an instruction information; and A configuration module configured to configure a demodulation reference signal according to the instruction information; Wherein, the indication information indicates that the demodulation reference signal is configured in one or more transmission occasions of K repeated transmissions, and K is a positive integer. A configuration device, configured on a second communication node, includes: A determination module configured to determine an indication information indicating that a demodulation reference signal is allocated in one or more transmission occasions of K repeated transmissions, where K is a positive integer; and A transmission module is configured to transmit the instruction information. A configuration device, including: An acquisition module, configured to acquire transmission timing offset information, the transmission timing offset information indicating the offset between transmission timings for repeated transmission of the same transmission block; and A determination module is set to determine the position of the transmission timing based on the transmission timing offset information. A configuration device, including: A determination module, configured to determine a transmission timing offset information, the transmission timing offset information indicates the offset between the transmission timings of repeated transmission of the same transmission block; and A transmission module is configured to transmit the transmission timing offset information. A first communication node, including: One or more processors; and A storage device, set to store one or more programs; among them: When the one or more programs are executed by the one or more processors, the one or more processors implement the method described in any one of claim items 1 to 32 or the method described in any one of claim items 35 to 38 method. A second communication node, including: One or more processors; and A storage device, set to store one or more programs; among them: When the one or more programs are executed by the one or more processors, the one or more processors implement the method described in claim 33 or the method described in 38. A storage medium that stores a computer program, and when the computer program is executed by a processor, the method described in any one of request items 1 to 38 is implemented.

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