CN115968043A

CN115968043A - Repeat transmission method, device, equipment and storage medium

Info

Publication number: CN115968043A
Application number: CN202111178168.8A
Authority: CN
Inventors: 曾超君; 李�根; 宋扬; 刘昊
Original assignee: Vivo Software Technology Co Ltd
Current assignee: Vivo Software Technology Co Ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2023-04-14

Abstract

The application discloses a repeated transmission method, a device, equipment and a storage medium, which belong to the technical field of communication, and the repeated transmission method of the embodiment of the application comprises the following steps: the communication equipment determines time domain positions of repeated transmission of a plurality of target channels scheduled by single downlink control information DCI; the communication equipment is a terminal or network side equipment.

Description

Repeated transmission method, device, equipment and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a storage medium for repeated transmission.

Background

In order to fully utilize the carrier time domain resources, multi-Physical Downlink Shared Channel (Multi-PDSCH) scheduling and Multi-Physical Uplink Shared Channel (Multi-PUSCH) scheduling may be introduced.

Currently, a Single (Single) Transmission Reception Point (TRP) scene is mainly considered in Multi-PDSCH scheduling or Multi-PUSCH scheduling. When applied to a Multi-Transmission Reception Point (Multi-TRP) scenario, multi-PDSCH scheduling or Multi-PUSCH scheduling may be combined with a retransmission scheme, but how retransmission is implemented is unknown to both sides of transceiving, resulting in low reliability of data Transmission.

Disclosure of Invention

The embodiment of the application provides a repeated transmission method, a repeated transmission device, repeated transmission equipment and a storage medium, and can solve the problem that how to realize repeated transmission is unknown to both transmitting and receiving sides, so that the reliability of data transmission is low.

In a first aspect, a method for repeated transmission is provided, the method including:

the communication equipment determines time domain positions of repeated transmission of a plurality of target channels scheduled by single downlink control information DCI;

the communication equipment is a terminal or network side equipment.

In a second aspect, there is provided a repetitive transmission apparatus, comprising:

a first determining module, configured to determine time domain positions of repeated transmission performed by multiple target channels scheduled by a single downlink control information DCI;

the communication equipment is a terminal or network side equipment.

In a third aspect, there is provided a communication device, the terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the first aspect.

In a fourth aspect, a communication device is provided, which includes a processor and a communication interface, wherein the processor is configured to:

determining time domain positions of repeated transmission of a plurality of target channels scheduled by single downlink control information DCI;

the communication equipment is a terminal or network side equipment.

In a fifth aspect, there is provided a readable storage medium on which is stored a program or instructions which, when executed by a processor, carries out the steps of the method according to the first aspect.

In a sixth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the method according to the first aspect.

In a seventh aspect, there is provided a computer program/program product stored on a non-transitory storage medium, the program/program product being executable by at least one processor to implement the steps of the repeat transmission method of the first aspect.

In the embodiment of the application, by determining the time domain positions of the repeated transmission of the multiple target channels scheduled by the single downlink control information DCI, the receiving side and the transmitting side of the repeated transmission are ensured to understand the time domain positions of the repeated transmission consistently, so that the Multi-TRP repeated transmission is supported on the basis of configuring the multiple target channels scheduled by the single DCI, and the transmission reliability is improved.

Drawings

Fig. 1 is a block diagram illustrating a wireless communication system to which an embodiment of the present application is applicable;

fig. 2 is a schematic flowchart of a retransmission method according to an embodiment of the present application;

fig. 3 is a schematic diagram of a retransmission method provided in an embodiment of the present application;

fig. 4 is a second schematic diagram of a retransmission method according to an embodiment of the present application;

fig. 5 is a third schematic diagram of a retransmission method according to an embodiment of the present application;

fig. 6 is a fourth schematic diagram illustrating a retransmission method according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a repetitive transmission device provided in an embodiment of the present application;

fig. 8 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

fig. 9 is a schematic hardware structure diagram of a terminal implementing the embodiment of the present application;

fig. 10 is a schematic hardware structure diagram of a network-side device for implementing an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of protection of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in other sequences than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally used herein in a generic sense to distinguish one element from another, and not necessarily from another element, such as a first element which may be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, and a character "/" generally means that the former and latter related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), frequency Division Multiple Access (FDMA), orthogonal Frequency Division Multiple Access (OFDMA), single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. The following description describes, for purposes of example, a New Radio (NR) system,and in much of the description below NR terminology is used, these techniques may also be applied to applications other than NR systems applications, such as 6 th generation (6) ^th Generation, 6G) communication system.

Fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (Wearable Device), a vehicle mounted Device (VUE), a pedestrian terminal (PUE), a smart home (a Device with wireless communication function, such as a refrigerator, a television, a washing machine or furniture), and the like, and the Wearable Device includes: smart watch, smart bracelet, smart earphone, smart glasses, smart jewelry (smart bracelet, smart ring, smart necklace, smart anklet, etc.), smart wristband, smart garment, game console, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an enodeb, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home enodeb, a WLAN access Point, a WiFi node, a Transmit Receive Point (TRP), or some other suitable term in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but the specific type of the Base Station is not limited.

The repetitive transmission method and apparatus provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings by using some embodiments and application scenarios thereof.

The following is first introduced:

for repeated Transmission of a Multi-Transmission Reception Point (Multi-TRP) scene, any of the following categories may be employed:

1. repetition transmission based on Frequency Division Multiplexing (FDM)/Time Division Multiplexing (TDM):

such a repeated transmission scheme may be understood as that two TRPs respectively correspond to a single Physical Downlink Shared Channel (PDSCH) repeat transmission (repetition), that is, two TRPs correspond to two transmissions of the same PDSCH, or one of the TRPs (for example, TRP 0) corresponds to an initial transmission of the PDSCH and the other TRP (for example, TRP 1) corresponds to a repeat transmission of the PDSCH, and time-frequency resources corresponding to the two PDSCH repetitions are located in a single Slot (Slot) and staggered with respect to each other by FDM or TDM. The premise for using such a repetitive transmission scheme is assumed to be: downlink Control Information (DCI) indicates two Transmission Configuration Indication states (TCI states) using a "Transmission Configuration Indication" field (each TCI state may be understood to correspond to a single TRP; and a Multi-TRP may consider interaction between two TRPs), and indicates a demodulation reference signal DM-RS Port (Port) within a single Code Division Multiplexing group (CDM group) using an "extension Port(s)" field.

The above-mentioned repetitive transmission scheme may include the following three schemes: fdmcchemeA, fdmcchemeB and tdmSChemeA. The fdmpschemea and fdmpschemeb schemes are similar and can be described together.

(1) fdmcschemea and fdmcschemeb:

the frequency domain resources allocated by the DCI may be based on a frequency domain forming granularity P' _BWP,i The split is made between two TCI states/TRP.

When P' _BWP,i In the case of "wideband signal wideband", the first one

A Physical Resource Block (PRB) is allocated to the first TCI state/TRP and the remaining ^ s>

A PRB is allocated to a second TCI state/TRP; n here _PRB The number of PRBs corresponding to the frequency domain resources;

when P' _BWP,i When the number is 2 or 4, a Precoding Resource Block Group (PRG) with even number corresponding to the frequency domain Resource is allocated to a first TCI state/TRP, and a PRG with odd number is allocated to a second TCI state/TRP;

the differences between fdmcschemeA and fdmcschemeB will be described separately below.

For fdmpschemea, DCI schedules a single PDSCH transmission occasion (PDSCH transmission occasion) for a scheduled single Transport Block (TB), that is, two TCI states/TRPs respectively associated time-frequency resources collectively form a single PDSCH transmission occasion (corresponding to a single Redundancy Version (RV)).

For fdmcschemeb, DCI schedules two PDSCH transmission sessions simultaneously for a single scheduled TB, the time-frequency resources associated with each TCI state/TRP may correspond to one PDSCH transmission session respectively, and each PDSCH transmission session performs RE mapping independently based on the corresponding time-frequency resources and corresponds to its RV version.

(2)tdmSchemeA：

When the DCI indicates two TCI states, the DCI schedules two PDSCH transmission occases simultaneously for a scheduled single TB, which are required to be located within the same Slot. Wherein, the first PDSCH transmission occasion corresponds to the first TCI state/TRP, and directly applies the time-frequency resource indicated in the DCI; the second PDSCH transmission occasion corresponds to the second TCI state/TRP, and the corresponding symbol numberThe number of symbols corresponding to the first PDSCH transmission occase is equal, and the interval between the initial symbol and the last symbol occupied by the first PDSCH transmission occase is

A number of symbols->

Configured by the high layer parameter startingSymbolOffset or takes the default value 0. Each PDSCH transmission occasion corresponds to a respective RV version. Mapping type B may be indicated in DCI and applied to two PDSCH transmission octypes at the same time.

When the DCI indicates a single TCI state, the DCI may schedule only a single PDSCH transmission occasion, where the data transceiving behavior is exactly the same as that of the conventional downlink scheduling.

2. Slot-based repeat transmission:

such a repeated transmission scheme may be understood as performing repeated transmission in a first Slot of several consecutive slots of a target repeated transmission number (repeat number), or may also be understood as performing initial transmission in the first Slot of the several consecutive slots of the target repeated transmission number, and performing repeated transmission in the remaining slots, where there is a single PDSCH transmission occasion (each PDSCH transmission occasion corresponds to a single transmission) in each Slot, corresponding to the same Start and Length Indicator Value (SLIV). The premise for using this duplicate transmission scheme is: DCI indicates one or two TCI states (each of which may be understood to correspond to a single TRP) using a "Transmission Configuration Indication" field, DCI indicates that a recurring number is configured in a Time domain resource allocation table (TDRA table) row, and DCI indicates a DM-RS Port within a single CDM group using an "Antenna Port" field.

When the DCI indicates two TCI states, the first PDSCH transmission occasion corresponds to the first TCI state/TRP.

When the repetitionNumber =2, the second PDSCH transmission event corresponds to the second TCI state/TRP;

when the repetitionNumber is greater than 2, determining the corresponding relation between each residual PDSCH transmission occasion and the TCI state/TRP based on the high-level configuration parameters:

when the high-level configuration adopts cyclic mapping (cyclic mapping), the first and second TCI state/TRP respectively correspond to the first and second PDSCH transmission occasions, and the mapping mode is repeated continuously to determine the corresponding relation between the subsequent PDSCH transmission occasions and the TCI state/TRP;

when the high layer configuration adopts sequential mapping (sequential mapping), the first TCI state/TRP corresponds to the first and second PDSCH transmission events, the second TCI state/TRP corresponds to the third and fourth PDSCH transmission events, and the mapping mode is repeated continuously to determine the corresponding relationship between the subsequent PDSCH transmission events and the TCI state/TRP.

When the DCI indicates a single TCI state, each PDSCH transmission occasion corresponds to this single TCI state/TRP.

3. Rel-17 Multi-PDSCH scheduling:

new sub-carrier spacing (SCS) may be introduced in the communication system, including 480kHz and 960kHz. For these newly introduced SCS, PDCCH monitoring needs to be adjusted or enhanced accordingly, for example, to avoid that the UE needs to monitor PDCCH in each Slot (with short duration) to reduce UE implementation complexity. Accordingly, to fully utilize the carrier time domain resources, multi-PDSCH scheduling and Multi-PUSCH scheduling may be introduced.

The Multi-PDSCH scheduling means that a single DCI can schedule a plurality of PDSCH transmissions on the same carrier at one time, and the PDSCHs are not overlapped in a time domain; multi-PUSCH scheduling is the same.

And a single DCI is supported to schedule a plurality of PDSCHs, each PDSCH is limited in a single Slot range and corresponds to a respective TB, and the single TB can neither span a plurality of PDSCHs for joint rate matching nor occupy the plurality of PDSCHs for repeated transmission.

Currently, multi-PDSCH scheduling is mainly considered for Single TRP scenarios. When applied to Multi-TRP scenarios, there is no corresponding solution for the combination of Multi-PDSCH scheduling and retransmission schemes.

In order to overcome the above drawbacks, embodiments of the present application propose a retransmission method, apparatus, device, and storage medium, so as to ensure that a receiving side and a sending side of retransmission specify time-domain positions of retransmission, ensure that Multi-TRP retransmission is supported on the basis of configuring a single DCI to schedule multiple target channels, and improve reliability of transmission.

Fig. 2 is a schematic flowchart of a retransmission method provided in an embodiment of the present application, and as shown in fig. 2, the method includes the following steps:

step 200, the communication equipment determines the time domain positions of repeated transmission of a plurality of target channels scheduled by a single downlink control information DCI;

the communication equipment is a terminal or network side equipment.

Optionally, the communication device is a terminal or a network side device, that is, both the terminal and the network side device may determine, based on the retransmission method provided in the embodiment of the present application, time domain positions of multiple target channels scheduled by a single DCI for retransmission, where one of the terminal and the network side device serves as a receiving end and the other serves as a sending end, the receiving end and the sending end for retransmission are guaranteed to unify the time domain positions of the retransmission, and the receiving end and the sending end for the retransmission are guaranteed to definitely determine the time domain positions of the retransmission, thereby guaranteeing that Multi-TRP retransmission is supported on the basis of configuring a single DCI to schedule multiple target channels.

Alternatively, the multiple target channels scheduled by a single downlink control information DCI may be Multi-PDSCH.

Alternatively, the multiple target channels scheduled by a single downlink control information DCI may be Multi-PUSCH.

Alternatively, when Multi-PDSCH scheduling is combined with a Multi-TRP repetition transmission scheme, for various Multi-TRP repetition transmission schemes, a corresponding combination scheme may be employed:

(a) For fdmccheemea:

and scheduling the PDSCH/effective PDSCH for each of the one to more PDSCHs scheduled by the single DCI by adopting the existing scheme/operation.

(b) For fdmpschemeb:

for each scheduled PDSCH/valid PDSCH in the one to multiple PDSCHs scheduled by the single DCI, the existing scheme/operation may be adopted.

(c) For tdmSChemeA:

the repeat transmission method proposed in the embodiment of the present application may be adopted.

In the embodiment of the application, by determining the time domain positions of the repeated transmission of the multiple target channels scheduled by the single downlink control information DCI, the receiving side and the transmitting side of the repeated transmission are ensured to understand the same time domain positions of the repeated transmission, so that the Multi-TRP repeated transmission is supported on the basis of configuring the multiple target channels scheduled by the single DCI, and the transmission reliability is improved.

Optionally, the determining, by the communication device, a time domain position of a repeated transmission performed by a plurality of target channels scheduled by a single DCI includes:

the communication equipment determines time unit offsets respectively applied to a plurality of target channels scheduled by the single DCI;

and the communication equipment determines time domain positions of repeated transmission corresponding to the multiple target channels of the single DCI scheduling respectively based on the time unit offsets applied by the multiple target channels of the single DCI scheduling respectively.

Optionally, when determining time domain positions of repeated transmission performed by a plurality of target channels scheduled by a single DCI, time unit offsets applied to the plurality of target channels scheduled by the single DCI may be first determined, and the time domain positions of the repeated transmission corresponding to the plurality of target channels scheduled by the single DCI may be determined based on the time unit offsets applied to the plurality of target channels scheduled by the single DCI. It may be appreciated that, for each of the plurality of target channels scheduled by the single DCI, the time domain location of its corresponding initial transmission is indicated by the single DCI, and the time domain location of its corresponding repeated transmission is determined based on the time domain location of its corresponding initial transmission and its corresponding or applied time unit offset.

For example, when determining the time domain position of the repeated transmission performed by the multiple target channels scheduled by the single DCI, the time unit offset applied by the fourth target channel may be first determined, and the time domain position of the repeated transmission corresponding to the fourth target channel may be determined based on the time unit offset applied by the fourth target channel, where the fourth target channel is any one of the multiple target channels scheduled by the single DCI.

Optionally, the time unit offset comprises a symbol level offset or a slot level offset.

Optionally, the time unit offset applied to each of the multiple target channels scheduled by the single DCI may include a time unit offset, and the time unit offset may be a symbol-level offset;

optionally, the time unit offset applied to each of the multiple target channels scheduled by the single DCI may include a time unit offset, and the time unit offset may be a slot level offset;

optionally, the time unit offset applied by the fourth target channel may include a time unit offset, and the time unit offset may be a symbol-level offset;

optionally, the time unit offset applied by the fourth target channel may include a time unit offset, and the time unit offset may be a slot level offset;

optionally, multiple target channels scheduled by a single DCI may respectively apply a symbol-level offset to determine their corresponding Repetition time domain positions, where fig. 3 is one of schematic diagrams of a repeat transmission method provided in an embodiment of the present application, and as shown in fig. 3, is a schematic diagram of a Repetition time domain position determined by applying a symbol-level offset.

In fig. 3, a single DCI schedules two PDSCHs, applying a symbol-level offset to the first PDSCH in slot n to determine its corresponding repeated transmission, and applying a symbol-level offset to the second PDSCH in slot n +1 to determine its corresponding repeated transmission.

Optionally, multiple target channels scheduled by a single DCI may respectively apply a slot-level offset to determine their corresponding Repetition time-domain positions.

Optionally, the determining, by the communication device, time unit offsets applied to the multiple target channels scheduled by the single DCI includes:

the communication device determines that a plurality of target channels of the single DCI schedule apply a uniform time unit offset.

Alternatively, the communication device may determine that a uniform time unit offset applies to multiple target channels of a single DCI schedule. I.e. the time unit offset applied by multiple target channels scheduled by a single DCI is the same.

Alternatively, a uniform or same symbol level offset may be applied to multiple target channels of a single DCI schedule.

Alternatively, a uniform or same slot level offset may be applied to multiple target channels of a single DCI schedule.

Optionally, the determining, by the communication device, that the multiple target channels scheduled by the single DCI apply a uniform time unit offset includes:

the communication device determines the uniform time unit offset based on a configuration for a single one of the terminals or a configuration of a single Bandwidth Part (BWP) of the single one of the terminals.

Alternatively, in the case where a uniform time unit offset is applied to a plurality of target channels scheduled by a single DCI, the communication device may determine the uniform time unit offset based on a configuration of a single terminal or a single Bandwidth Part (BWP) of the single terminal.

Optionally, in case that a uniform time unit offset is applied to multiple target channels scheduled by a single DCI, the time unit offset being a symbol-level offset, the symbol-level offset may be configured or indicated in the following manner: a single BWP for a single UE or a single UE is configured.

Optionally, in case that a uniform time unit offset is applied to multiple target channels scheduled by a single DCI, the time unit offset being a slot-level offset, the slot-level offset may be configured or indicated in the following manner: a single BWP for a single UE or a single UE is configured.

Optionally, the determining, by the communication device, that the multiple target channels of the single DCI schedule apply a uniform time unit offset includes:

in a case where the unified time cell offset is not configured, the communication device determines the unified time cell offset to be a default value.

Alternatively, in the case that a uniform time unit offset is applied to multiple target channels of a single DCI schedule, if the uniform time unit offset is not configured, the communication device may determine the uniform time unit offset as a default value.

Optionally, the default value may be a preset or protocol specified or a default value for both sides of the messaging.

Optionally, in case that a uniform time unit offset is applied to multiple target channels scheduled by a single DCI, the time unit offset being a symbol-level offset, the symbol-level offset may be configured or indicated in the following manner: a default value, such as 0, may be employed when the slot level offset is not explicitly configured. For example, the high layer parameter startingSymbolOffset in the prior art is extended to be applicable to Multi-PDSCH or Multi-PUSCH scheduling.

Optionally, in case that a uniform time unit offset is applied to multiple target channels scheduled by a single DCI, the time unit offset being a slot-level offset, the slot-level offset may be configured or indicated in the following manner: a default value may be employed when the slot level offset is not explicitly configured.

For example, when a plurality of target channels scheduled by a single DCI apply a uniform time unit offset, where the time unit offset is a slot level offset, if the starting position of the slot level offset of the fifth target channel is a slot where the fifth target channel is located, a default value adopted by the slot level offset of the fifth target channel may be the number of slots spanned by all target channels scheduled by the single DCI; for example, fig. 4 is a second schematic diagram of the repeat transmission method provided in the embodiment of the present application, and as shown in fig. 4, assuming that the first target channel of the DCI schedule is located in time slot m1 and the last target channel of the DCI schedule is located in time slot m2, the number of time slots spanned by all target channels of the DCI schedule is m2-m1+1. At this time, the Repetition corresponding to the first target channel of the DCI schedule is located in the time slot m2+1, that is, the time slot set spanned by all the target channels of the DCI schedule is exactly adjacent to the time slot set spanned by all the Repetition in the time domain, but is not overlapped.

In fig. 4, a single DCI schedules three PDSCHs, the number of time slots spanned by all the scheduled target channels is 2, at this time, a time slot level offset 2 is sequentially applied to each scheduled PDSCH, and time domain positions of 3 repeated transmissions in a time slot n +2 and a time slot n +3 are sequentially determined/obtained.

the communication equipment determines the offset corresponding to the scheduled target row in the time domain resource allocation table as the uniform time unit offset;

wherein each row of the time domain resource allocation table corresponds to a respective offset.

Optionally, in a case that a plurality of target channels scheduled by a single DCI apply a uniform time unit offset, the communication device may determine that an offset corresponding to a scheduled target row in a time domain resource allocation table (TDRA table) is the uniform time unit offset, where each row of the time domain resource allocation table corresponds to the same or different offset.

Alternatively, in case a uniform time unit offset is applied to multiple target channels scheduled by a single DCI, the time unit offset being a symbol-level offset, the symbol-level offset may be configured or indicated in the following way: when each line is configured in the TDRA table, symbol level offsets which are configured and correspond to each line one by one are newly added; when scheduling a target row, symbol-level offsets corresponding to this target row are uniformly applied.

For example, when the 1 st to 5 th rows are configured in the TDRA table, a symbol level offset a1 corresponding to the 1 st row is newly added, or a time domain symbol level offset a1 applied to the row is newly added in the 1 st row, a symbol level offset a2 corresponding to the 2 nd row is newly added, or a time domain symbol level offset a2 applied to the row is newly added in the 2 nd row, a symbol level offset a3 corresponding to the 3 rd row is newly added, or a time domain symbol level offset a3 applied to the row is newly added in the 3 rd row, a symbol level offset a4 corresponding to the 4 th row is newly added, or a time domain symbol level offset a4 applied to the row is newly added in the 4 th row, a symbol level offset a5 corresponding to the 5 th row is newly added, or a time domain symbol level offset a5 applied to the row is newly added in the 5 th row; when a target row is scheduled, for example, row 5, a plurality of target channels scheduled by a single DCI are uniformly applied with a symbol level offset a5 corresponding to this row 5, or are uniformly applied with a time domain symbol level offset a5 configured in this row 5.

Optionally, in case that a uniform time unit offset is applied to multiple target channels scheduled by a single DCI, the time unit offset being a slot-level offset, the slot-level offset may be configured or indicated in the following manner: when each line is configured in the TDRA table, newly configuring time slot level offsets corresponding to each line one by one; when scheduling a target row, the slot level offsets corresponding to this target row are applied uniformly.

For example, when the 1 st to 4 th rows are configured in the TDRA table, newly configuring a time slot level offset b1 corresponding to the 1 st row, or newly configuring a time slot level offset b1 applied to the row in the 1 st row, and newly configuring a time slot level offset b2 corresponding to the 2 nd row, or newly configuring a time slot level offset b2 applied to the row in the 2 nd row, and newly configuring a time slot level offset b3 corresponding to the 3 rd row, or newly configuring a time slot level offset b3 applied to the row in the 3 rd row, and newly configuring a time slot level offset b4 corresponding to the 4 th row, or newly configuring a time slot level offset b4 applied to the row in the 4 th row; when a target row, for example, row 2, is scheduled, a plurality of target channels scheduled by a single DCI are uniformly applied with the slot level offset b2 corresponding to the row 2, or are uniformly applied with the time domain slot level offset b2 configured in the row 2.

Optionally, in a case that the communication device is the terminal, the determining, by the communication device, that the uniform time unit offset is applied to the multiple target channels scheduled by the single DCI includes:

the terminal determines the unified time unit offset based on a first indication in the single DCI.

Alternatively, in case that a uniform time unit offset is applied to multiple target channels scheduled by a single DCI, the terminal may determine the uniform time unit offset based on the first indication in the single DCI.

Optionally, in case that a uniform time unit offset is applied to multiple target channels scheduled by a single DCI, the time unit offset being a symbol-level offset, the symbol-level offset may be configured or indicated in the following manner: the terminal may determine the symbol-level offset based on the first indication in the single DCI.

Optionally, in case that a uniform time unit offset is applied to multiple target channels scheduled by a single DCI, the time unit offset being a slot-level offset, the slot-level offset may be configured or indicated in the following manner: the terminal may determine the slot level offset based on the first indication in the single DCI.

Optionally, in a case that the communication device is the network side device, the determining, by the communication device, that the multiple target channels scheduled by the single DCI apply a uniform time unit offset includes:

the network side device determines the uniform time unit offset;

and the network side equipment indicates the unified time unit offset to a terminal through a first indication in the single DCI.

Alternatively, in the case that a uniform time unit offset is applied to multiple target channels scheduled by a single DCI, the network side may first decide the uniform time unit offset and then inform the terminal of the uniform time unit offset through a first indication in the single DCI.

Optionally, in case that a uniform time unit offset is applied to multiple target channels scheduled by a single DCI, the time unit offset being a symbol-level offset, the symbol-level offset may be configured or indicated in the following manner: the network side may first decide the symbol level offset and then inform the terminal of it through the first indication in the single DCI.

Optionally, in case that a uniform time unit offset is applied to multiple target channels scheduled by a single DCI, the time unit offset being a slot-level offset, the slot-level offset may be configured or indicated in the following manner: the network side may first decide the slot level offset and then inform the terminal of it through the first indication in the single DCI.

Optionally, the first indication comprises at least one of:

first indication information dedicated to indicating the unified time unit offset;

a first index indicating the unified time unit offset corresponding to the first index in a first list, wherein the first list includes at least one second index and at least one first offset, the first index is one of the at least one second index, the unified time unit offset is one of the at least one first offset, and each of the second indexes respectively corresponds to a respective first offset;

a third index referencing a second list indicating the unified time unit offset corresponding to the third index, wherein the second list includes at least one second offset, each of the second offsets corresponds to a respective fourth index implicitly determined based on a location of its corresponding second offset in the second list; the third index is one of at least one fourth index and the unified time unit offset is one of the at least one second offset.

Optionally, in case that a uniform time unit offset is applied to multiple target channels scheduled by a single DCI, the time unit offset being a symbol-level offset, the symbol-level offset may be configured or indicated in any one or any number of ways:

directly indicating the applied symbol-level offset in a single DCI; that is, the first indication may include first indication information dedicated to indicating the symbol-level offset; or

A symbol-level offset list, i.e. a first list, may be configured at a high level, where the first list may include at least one second index and at least one first offset, where each of the second indexes corresponds to a respective first offset, i.e. one second index corresponds to one first offset in the first list, and different second indexes correspond to different first offsets in the first list; an index in this list, such as a subscript or a separate index symbol, etc., may be indicated by the DCI by a first indication to indicate that the corresponding entry in this first list applies; therefore, the first indication may include a first index, the first index being one of the at least one second index, and the symbol-level offset applied to the multiple target channels scheduled by the single DCI may be a corresponding first offset of the first index in the first list; or

Another symbol-level offset list, that is, a second list, may be configured at a higher layer, where the second list may include at least one second offset, where the at least one second offset may be arranged in a specific order, an arrangement position of one second offset in the second list may implicitly correspond to one fourth index, different second offsets may implicitly correspond to different fourth indexes in the second list, and the at least one second offset in the second list may implicitly correspond to a same number of fourth indexes; the corresponding index may be implied by the DCI by a first indication indicating the offset in this list to indicate the application of the corresponding entry in this second list; the first indication may thus comprise a third index being one of the at least one fourth index, and the symbol-level offset may be such that the third index implies a corresponding second offset in the first list.

Thus, in case a uniform time unit offset is applied to multiple target channels of a single DCI schedule, the time unit offset being a symbol-level offset, the first indication may comprise at least one of:

first indication information, which may be dedicated to indicating the symbol level offset; or

A first index that may be used to indicate a symbol-level offset in a first list corresponding to the first index; or

A third index that references a symbol-level offset indicating a symbol-level offset in a second list corresponding to the third index.

Optionally, in the case that a uniform time unit offset is applied to multiple target channels scheduled by a single DCI, where the time unit offset is a slot-level offset, the slot-level offset may be configured or indicated in any one or any number of ways:

directly indicating an applied slot-level offset in a single DCI; that is, the first indication may include first indication information dedicated to indicating the uniform time unit offset; or

A slot-level offset list, i.e. a first list, may be configured at a high level, where the first list may include at least one second index and at least one first offset, where each of the second indexes corresponds to a respective first offset, i.e. one second index corresponds to one first offset in the first list, and different second indexes correspond to different first offsets in the first list; an index in this list, such as a subscript or a separate index symbol, etc., may be indicated by the DCI by a first indication to indicate that the corresponding entry in this first list applies; the first indication may therefore comprise a first index, the first index being one of the at least one second index, and the slot-level offset may be a corresponding first offset of the first index in the first list; or

Another slot-level offset list, i.e., a second list, may be configured at a higher level, and the second list may include at least one second offset, where the at least one second offset may be arranged in a specific order, an arrangement position of one second offset in the second list may implicitly correspond to one fourth index, different second offsets may implicitly correspond to different fourth indexes in the second list, and the at least one second offset in the second list may implicitly correspond to a total number of fourth indexes; the corresponding index may be implied by the DCI indicating the offset in this list by the first indication to indicate the application of the corresponding entry in this second list; thus, the first indication may comprise a third index, the third index being one of the at least one fourth index, and the slot-level offset may be such that the third index implies a corresponding second offset in the first list.

Thus, in case a uniform time unit offset is applied to a plurality of target channels of a single DCI schedule, the time unit offset being a slot level offset, the first indication may comprise at least one of:

first indication information, which may be dedicated to indicating the slot level offset; or

A first index that may be used to indicate a slot level offset in a first list corresponding to the first index; or

A third index referencing a slot level offset indicating a slot level offset in a second list corresponding to the third index.

Optionally, the determining, by the communication device, time unit offsets applied to the respective target channels of the single DCI schedule includes:

the communication device determines that the plurality of target channels scheduled by the single DCI respectively apply respective time unit offsets.

Optionally, the communication device may determine that the multiple target channels scheduled by the single DCI each apply a respective time unit offset; that is, the time unit offsets applied by the multiple target channels scheduled by a single DCI are not all the same or all different.

Alternatively, a plurality of target channels scheduled by a single DCI may each apply a respective symbol-level offset.

Alternatively, a plurality of target channels scheduled by a single DCI may each apply a respective slot level offset.

Optionally, the determining, by the communication device, that the respective time unit offsets are applied to the multiple target channels scheduled by the single DCI includes:

the communication equipment determines that the offset corresponding to the first time domain resource allocation record is the time unit offset applied by the first target channel;

wherein the first time domain resource allocation record is: any one time domain resource allocation record in at least one time domain resource allocation record configured in a scheduled target row in the time domain resource allocation table; each time domain resource allocation record in the at least one time domain resource allocation record corresponds to a respective offset; the first target channel is a target channel corresponding to the first time domain resource allocation record in the plurality of target channels.

Optionally, in a case that a plurality of target channels scheduled by a single DCI each apply a respective time unit offset, the communication device may determine that the offset corresponding to the first time domain resource allocation record is the time unit offset applied by the first target channel, where the first target channel is a target channel corresponding to the first time domain resource allocation record in the plurality of target channels, and the first time domain resource allocation record is: any one time domain resource allocation record in at least one time domain resource allocation record configured in a scheduled target row in the time domain resource allocation table; each time domain resource allocation record in the at least one time domain resource allocation record corresponds to a respective offset, that is, one time domain resource allocation record corresponds to one offset, and different time domain resource allocation records correspond to the same or different offsets.

Alternatively, in the case that multiple target channels scheduled by a single DCI each apply a respective time unit offset, which is a symbol-level offset, the symbol-level offset may be configured or indicated in the following manner:

when any one of all rows is configured in the TDRA table, newly configuring symbol level offsets corresponding to each time domain resource allocation record configured in the row; when scheduling a target row, a first target channel corresponding to a first time domain resource allocation record in the target row applies a symbol level offset corresponding to the first time domain resource allocation record in the target row.

Optionally, in a case that a plurality of target channels scheduled by a single DCI each apply a respective time unit offset, and the time unit offset is a slot-level offset, the time-domain slot-level offset may be configured or indicated in the following manner:

when any one of all rows is configured in the TDRA table, newly configuring time slot level offset corresponding to each time domain resource allocation record configured in the row; when scheduling a target row, a first target channel corresponding to a first time domain resource allocation record in the target row applies a slot level offset corresponding to the first time domain resource allocation record in the target row.

Alternatively, the time domain resource allocation record may be a SLIV; for example, when any one of all rows is configured in the TDRA table, a symbol level offset configured to correspond to each SLIV configured in the row is newly added; when a certain target row is scheduled, a first target channel corresponding to a first SLIV in the target row applies a symbol level offset corresponding to the first SLIV, where the first SLIV is any one of one to multiple SLIVs configured in the target row.

For example, when any one of all rows is configured in the TDRA table, a time slot level offset corresponding to each SLIV configured in the row is newly configured; when a certain target row is scheduled, a first target channel corresponding to a first SLIV in the target row applies a slot level offset corresponding to the first SLIV, where the first SLIV is any one of one to multiple SLIVs configured in the target row.

Optionally, in a case that the communication device is the terminal, the determining, by the communication device, that the respective time unit offsets are applied to the multiple target channels scheduled by the single DCI includes:

the terminal determines time unit offsets applied by a plurality of target channels scheduled by the single DCI respectively based on the second indication in the single DCI.

Alternatively, in a case where the plurality of target channels scheduled by the single DCI respectively apply the respective time unit offsets, the terminal may determine the time unit offsets respectively applied by the plurality of target channels based on the second indication in the single DCI.

Alternatively, in the case that the multiple target channels of a single DCI schedule each apply a respective time unit offset, and the time unit offset is a symbol-level offset, the symbol-level offset applied by the multiple target channels may be configured or indicated in the following manner: the terminal may determine symbol-level offsets to which the plurality of target channels are respectively applied based on the second indication in the single DCI.

Alternatively, in the case that the multiple target channels scheduled by the single DCI each apply a respective time unit offset, and the time unit offset is a slot-level offset, the slot-level offset applied by the multiple target channels may be configured or indicated in the following manner: the terminal may determine slot-level offsets to which the plurality of target channels are respectively applied based on the second indication in the single DCI.

Optionally, in a case that the communication device is the network side device, the determining, by the communication device, that the respective time unit offsets are applied to the multiple target channels scheduled by the single DCI includes:

the network side equipment determines that a plurality of target channels scheduled by the single DCI respectively apply respective time unit offsets;

and the network side equipment indicates the time unit offset applied by each target channel in the plurality of target channels scheduled by the single DCI to a terminal through the second indication in the single DCI.

Optionally, in a case that the multiple target channels scheduled by the single DCI each apply respective time unit offsets, the network side device may first decide the time unit offset applied by each target channel, and then notify the terminal of the time unit offset through the second indication in the single DCI.

Alternatively, in the case that a plurality of target channels scheduled by a single DCI each apply a respective time unit offset, which is a symbol-level offset, the symbol-level offset applied by each target channel may be configured or indicated in the following manner: the network side device may first decide the symbol-level offset to be applied to each target channel, and then inform the terminal of the symbol-level offset through the second indication in the single DCI.

Alternatively, in a case that a plurality of target channels scheduled by a single DCI respectively apply respective time unit offsets, and the time unit offsets are slot level offsets, the slot level offsets respectively applied by the respective target channels may be configured or indicated in the following manner: the network side device may first decide the slot level offset to be applied by each target channel, and then inform the terminal of the slot level offset through the second indication in the single DCI.

Optionally, the second indication comprises:

a fifth index, configured to indicate a first offset set corresponding to the fifth index in a third list, where the first offset set includes at least one time unit offset, and the at least one time unit offset is respectively and sequentially applied to different target channels in the plurality of target channels, and the third list includes at least one sixth index and at least one second offset set, where the fifth index is one of the at least one sixth index, the first offset set is one of the at least one second offset set, and each of the sixth indexes respectively corresponds to a respective second offset set;

a seventh index, configured to indicate a third offset set corresponding to the seventh index in a fourth list, where the third offset set includes at least one time unit offset that is sequentially applied to different target channels in the multiple target channels, respectively, and the fourth list includes at least one fourth offset set, each of the fourth offset sets corresponds to a respective eighth index that is implicitly determined based on a position of the corresponding fourth offset set in the fourth list; the seventh index is one of the entries of at least one eighth index, and the third offset set is one of the entries of the at least one fourth offset set.

Alternatively, in a case that the multiple target channels scheduled by the single DCI each apply a respective time unit offset, and the time unit offset is a symbol-level offset, the symbol-level offset applied by the multiple target channels respectively may be configured or indicated in any one or any multiple of the following manners:

directly indicating symbol-level offsets respectively applied by a plurality of target channels in a single DCI; that is, the second indication may include second indication information dedicated to indicate symbol-level offsets applied to the plurality of target channels, respectively; or

A symbol-level offset list, i.e. a third list, may be configured at a high level, and the third list may include at least one sixth index and at least one second offset set, where each of the sixth indexes corresponds to a respective second offset set, i.e. one sixth index corresponds to one second offset set in the third list, and different sixth indexes correspond to different second offset sets in the third list; an index in this list, such as a subscript or a separate index symbol, etc., may be indicated by the DCI via a second indication to indicate that the corresponding entry in this third list applies; therefore, the second indication may include a fifth index, where the fifth index is one of the at least one sixth index, and the first offset set formed by the symbol-level offsets applied by the target channels may be a second offset set corresponding to the fifth index in the third list; wherein at least one symbol-level offset in the first set of offsets may be applied in a sequence one-to-one correspondence on a plurality of target channels scheduled by a single DCI; for example, the plurality of target channels scheduled by the single DCI include a target channel A1, a target channel A2, and a target channel A3, and the at least one symbol-level offset of the first set of offsets may include a symbol-level offset c1, a symbol-level offset c2, and a symbol-level offset c3, then the target channel A1 applies the symbol-level offset c1, the target channel A2 applies the symbol-level offset c2, and the target channel A3 applies the symbol-level offset c3; or

Another symbol-level offset list, that is, a fourth list, may be configured at a higher layer, and the fourth list may include at least one fourth offset set, where the at least one fourth offset set may be arranged in a specific order, an arrangement position of one fourth offset set in the fourth list may implicitly correspond to one eighth index, a different fourth offset set may implicitly correspond to a different eighth index in the fourth list, and the at least one fourth offset set in the fourth list may collectively implicitly correspond to the same number of eighth indexes; a second indication may be provided by the DCI to indicate that the set of offsets in this list imply corresponding indices to indicate that corresponding entries in this fourth list apply; therefore, the second indication may include a seventh index, where the seventh index is one of the at least one eighth index, and the third offset set formed by the symbol-level offsets applied by the target channels may be a fourth offset set corresponding to the seventh index in the fourth list; wherein at least one symbol-level offset in the third offset set may be applied on multiple target channels scheduled by a single DCI in a one-to-one correspondence in order; for example, the plurality of target channels scheduled by the single DCI include a target channel B1, a target channel B2, and a target channel B3, and the at least one symbol-level offset of the third set of offsets may include a symbol-level offset d1, a symbol-level offset d2, and a symbol-level offset d3, then the target channel B1 applies the symbol-level offset d1, the target channel B2 applies the symbol-level offset d2, and the target channel B3 applies the symbol-level offset d3.

Thus, in case that the plurality of target channels scheduled by the single DCI each apply a respective time unit offset, and the time unit offset is a symbol-level offset, the second indication may comprise at least one of:

second indication information that may be dedicated to indicate symbol-level offsets to which a plurality of target channels are respectively applied; or

A fifth index to indicate a first set of offsets in a third list corresponding to the fifth index; or

A seventh index, configured to indicate a third offset set corresponding to the seventh index in a fourth list, where the third offset set includes at least one time unit offset, and the at least one time unit offset is respectively and sequentially applied to different target channels in the multiple target channels.

Optionally, in a case that the multiple target channels scheduled by the single DCI each apply a respective time unit offset, and the time unit offset is a slot-level offset, the slot-level offset applied by the multiple target channels may be configured or indicated in any one or any multiple of the following manners:

directly indicating, in a single DCI, slot-level offsets to which a plurality of target channels are respectively applied; that is, the second indication may include second indication information dedicated to indicate the slot level offsets applied to the plurality of target channels, respectively; or

A slot-level offset list, i.e. a third list, may be configured at a high level, and the third list may include at least one sixth index and at least one second offset set, where each of the sixth indexes corresponds to a respective second offset set, i.e. one sixth index corresponds to one second offset set in the third list, and different sixth indexes correspond to different second offset sets in the third list; an index in this list, such as a subscript or a separate index symbol, etc., may be indicated by the DCI via a second indication to indicate that the corresponding entry in this third list applies; therefore, the second indication may include a fifth index, where the fifth index is one of the at least one sixth index, and the first offset set formed by the slot-level offsets applied by the target channels may be a second offset set corresponding to the fifth index in the third list; wherein at least one slot level offset in the first offset set can be applied to a plurality of target channels scheduled by a single DCI in a one-to-one correspondence in order; for example, if the plurality of target channels scheduled by the single DCI include a target channel C1, a target channel C2, and a target channel C3, and the at least one slot-level offset of the first offset set may include a slot-level offset e1, a slot-level offset e2, and a slot-level offset e3, then the target channel C1 applies the slot-level offset e1, the target channel C2 applies the slot-level offset e2, and the target channel C3 applies the slot-level offset e3; or

Another slot-level offset list, that is, a fourth list, may be configured at a higher layer, and the fourth list may include at least one fourth offset set, where the at least one fourth offset set may be arranged in a specific order, an arrangement position of the at least one fourth offset set in the fourth list may implicitly correspond to an eighth index, and different at least one fourth offset set may implicitly correspond to different eighth indexes in the fourth list, and the at least one fourth offset set in the fourth list may implicitly correspond to the at least one eighth index altogether; a second indication may be provided by the DCI to indicate that the set of offsets in this list imply corresponding indices to indicate that corresponding entries in this fourth list apply; therefore, the second indication may include a seventh index, where the seventh index is one of at least one eighth index, and the third offset set formed by the slot-level offsets applied by the target channels may be a fourth offset set corresponding to the seventh index in the fourth list; wherein at least one slot-level offset in the third offset set may be applied to a plurality of target channels scheduled by a single DCI in a one-to-one correspondence in order; for example, if the plurality of target channels scheduled by the single DCI include target channel D1, target channel D2, and target channel D3, and the at least one slot-level offset of the third offset set may include slot-level offset f1, slot-level offset f2, and slot-level offset f3, then target channel D1 applies slot-level offset f1, target channel D2 applies slot-level offset f2, and target channel D3 applies slot-level offset f3.

Thus, in case that the plurality of target channels scheduled by the single DCI each apply a respective time unit offset, and the time unit offset is a slot level offset, the second indication may comprise at least one of:

second indication information which may be dedicated to indicate slot level offsets to which a plurality of target channels are respectively applied; or

A seventh index, configured to indicate a third offset set corresponding to the seventh index in a fourth list, where the third offset set includes at least one time unit offset, and the at least one time unit offset is sequentially applied to different target channels in the multiple target channels, respectively.

the communication device determines time unit offsets to be applied respectively by a plurality of target channels of the single DCI scheduling based on a predefined rule.

Alternatively, in a case where the respective time unit offsets are applied to the plurality of target channels of the single DCI schedule, the communication device may determine the time unit offsets applied to the plurality of target channels of the single DCI schedule based on a predefined rule.

Alternatively, in the case that a plurality of target channels scheduled by a single DCI each apply a respective time unit offset, the time unit offset being a symbol-level offset, the symbol-level offset applied by the plurality of target channels may be configured or indicated in the following manner: determining based on a predefined rule; for example, it may be required that the last symbol occupied by Repetition corresponding to a certain target channel is the last symbol of the slot where the target channel is located after the corresponding symbol-level offset is applied.

Alternatively, in a case where a plurality of target channels scheduled by a single DCI each apply a respective time unit offset, and the time unit offset is a slot-level offset, the slot-level offset applied by the plurality of target channels may be configured or indicated in the following manner: determining based on a predefined rule; for example, the slot level offset applied to the first target channel of DCI scheduling may be determined first, and the slot level offsets applied to other target channels may be determined based on the slot level offset applied to the first target channel and the slot offset between the target channel and the first target channel, as shown in fig. 4, so that the time domain offset between Repetition and the time domain offset between corresponding target channels may be guaranteed to be completely consistent. And when the slot level offset is applied to the first target channel, the corresponding Repetition is positioned at the next slot of the slot where the last target channel is positioned in the DCI scheduling.

Optionally, the determining, by the communication device, time domain positions of repeated transmissions corresponding to the multiple target channels of the single DCI schedule based on time unit offsets applied to the multiple target channels of the single DCI schedule respectively includes:

the communication equipment determines the starting position of the time unit offset corresponding to the second target channel;

the communication equipment determines a time domain position of repeated transmission corresponding to the second target channel based on the starting position of the time unit offset corresponding to the second target channel;

wherein the second target channel is any one of the plurality of target channels.

Alternatively, when a symbol-level offset is applied to determine its corresponding Repetition time-domain position for the second target channel, the starting position of this symbol-level offset may be determined first.

Optionally, when the slot-level offset is applied to the second target channel to determine its corresponding Repetition time domain position, the start position of the slot-level offset may be determined first.

Alternatively, the second target channel may be any one of the plurality of target channels.

Optionally, in a case that the time unit offset includes a symbol-level offset, a start position of the time unit offset corresponding to the second target channel includes any one of:

a next symbol to a last symbol occupied by the second target channel;

the end time of the last symbol occupied by the second target channel;

a first symbol occupied by the second target channel.

It is understood that the symbol occupied by the second target channel may also be understood as a symbol occupied by the initial transmission of the second target channel. The symbol occupied by the second target channel may be indicated by DCI scheduling the second target channel.

Optionally, in a case that the time unit offset comprises a symbol-level offset, when determining its corresponding Repetition time-domain position for the second target channel applying the symbol-level offset, determining a starting position of this symbol-level offset comprises any one of:

a next symbol to a last symbol occupied by the second target channel;

the end time of the last symbol occupied by the second target channel;

a first symbol occupied by the second target channel.

Alternatively, the starting position of this symbol level offset may also be determined based on prior art or protocol specifications.

Optionally, in a case that the time unit offset includes a slot level offset, and the communication device determines that the multiple target channels scheduled by the single DCI each apply a respective time unit offset, a starting position of the time unit offset corresponding to the second target channel includes any one of:

a time slot in which the second target channel is located;

the time slot next to the time slot in which the second target channel is located;

a time slot next to a last time slot in a time slot set corresponding to a plurality of target channels scheduled by the single DCI;

a first time slot in a set of time slots corresponding to a plurality of target channels scheduled by the single DCI.

Optionally, in a case that the time unit offset includes a slot level offset, and the communication device determines that the multiple target channels scheduled by the single DCI each apply a respective time unit offset, when determining their corresponding Repetition time domain positions for a second target channel by applying the slot level offset, it may be determined that a starting position of the slot level offset includes any of:

the time slot of the second target channel;

Here, the set of time slots corresponding to the plurality of target channels scheduled by the single DCI may be understood as a set consisting of the respective time slots of the target channels scheduled by the single DCI.

Optionally, in a case that the time unit offset includes a slot level offset, and the communication device determines that a uniform time unit offset applies to multiple target channels scheduled by the single DCI, a starting position of the time unit offset corresponding to the second target channel includes any one of:

a time slot in which the second target channel is located;

the time slot next to the time slot in which the second target channel is located.

Optionally, in a case that the time unit offset includes a slot level offset, and the communication device determines that a plurality of target channels scheduled by the single DCI apply a uniform time unit offset, when determining a corresponding Repetition time domain position for a second target channel applying the slot level offset, it may be determined that a starting position of the slot level offset includes any of:

a time slot in which the second target channel is located;

Optionally, where the time unit offset comprises a symbol-level offset, the repeated transmission of the plurality of target channels scheduled by the single DCI satisfies at least one of:

the first repeat transmission does not cross a time cell boundary;

the first repeated transmission and the corresponding target channel are positioned in the same time unit;

the first repeated transmission has no time domain overlap with the corresponding target channel;

each target channel scheduled by the first repeated transmission and the single DCI has no time domain overlapping;

the first repeated transmission has no time domain overlap with the repeated transmission corresponding to each target channel scheduled by the single DCI;

the first repeated transmission has no time-domain overlap with the first channel;

wherein the first repeated transmission is repeated transmission corresponding to any one of a plurality of target channels scheduled by the single DCI, the first channel is any one of channels scheduled or configured for the terminal, and the first channel is not scheduled by the single DCI.

Optionally, where the time unit offset comprises a symbol-level offset, the repeated transmission of the plurality of target channels scheduled by the single DCI satisfies at least one of the following requirements (1) to (6):

requirement (1): the first repeat transmission does not cross a time cell boundary;

requirement (2): the first repeated transmission and the corresponding target channel are positioned in the same time unit;

requirement (3): the first repeated transmission has no time domain overlap with the corresponding target channel;

requirement (4): each target channel scheduled by the first repeated transmission and the single DCI has no time domain overlapping;

requirement (5): the first repeated transmission has no time domain overlap with the repeated transmission corresponding to each target channel scheduled by the single DCI;

requirement (6): there is no time-domain overlap of the first repeated transmission with the first channel.

Wherein the first repeated transmission is a repeated transmission corresponding to any one of a plurality of target channels scheduled by the single DCI, the first channel is any one of channels scheduled or configured for the terminal, and the first channel is not scheduled by the single DCI, for example, the first channel may be a PDSCH transmission configured for the terminal, for example, an SPS PDSCH.

The time unit may be a symbol or a time Slot, for example, a Slot or a Sub-Slot, or other time units with predefined time lengths.

Alternatively, the time unit in the requirement (1) and the requirement (2) may be a Slot, for example, a Slot or a Sub-Slot. The above time domain overlapping may be understood as occupying the same time unit, for example, occupying at least one symbol being the same.

Optionally, where the time unit offset comprises a slot level offset, the repeated transmission of the plurality of target channels scheduled by the single DCI satisfies at least one of:

the first repeated transmission and the repeated transmission corresponding to each target channel scheduled by the single DCI do not have time domain overlapping;

there is no time-domain overlap of the first repeated transmission and the second channel;

wherein the first repeated transmission is repeated transmission corresponding to any one of a plurality of target channels scheduled by the single DCI, the second channel is any one of channels scheduled or configured for the terminal, and the second channel is not scheduled by the single DCI.

Optionally, where the time unit offset comprises a slot level offset, the repeated transmission of the plurality of target channels scheduled by the single DCI meets at least one of the following requirements (7) to (9):

requirement (7): the first repeated transmission and each target channel scheduled by the single DCI do not have time domain overlapping;

requirement (8): the first repeated transmission has no time domain overlap with the repeated transmission corresponding to each target channel scheduled by the single DCI;

requirement (9): there is no time-domain overlap of the first repeated transmission and the second channel.

The time unit may be a symbol or a Slot, for example, a Slot or a Sub-Slot, or other time units with predefined time lengths, and this understanding may be adopted for the Slot in this scheme, which is not described again.

Optionally, in a case that a repeated transmission corresponding to at least one target channel of the multiple target channels scheduled by the single DCI crosses a time unit boundary, the manner of performing the repeated transmission of the multiple target channels scheduled by the single DCI includes any one of:

transceiving the second repeated transmission as a single PDSCH;

performing disassembly processing on a second repeated transmission, and transmitting and receiving the second repeated transmission, wherein the disassembly processing on the second repeated transmission comprises using all symbols of the second repeated transmission in a first time unit as a single PDSCH, and the first time unit is any one time unit occupied by the second repeated transmission;

wherein the second repeated transmission is any one of repeated transmissions crossing a time unit boundary and corresponds to one of a plurality of target channels scheduled by the single DCI.

Optionally, in a case where the time unit offset includes a symbol-level offset, and where repeated transmission of multiple target channels scheduled by the single DCI does not require requirement (1), when at least one Repetition crosses a slot boundary, any one of the following processing manners may be adopted for the Repetition crossing the slot boundary:

transceiving the second repeated transmission as a single PDSCH;

and performing disassembly processing on the second repeated transmission, and transceiving the second repeated transmission, wherein the disassembly processing on the second repeated transmission comprises using all symbols of the second repeated transmission in a first time unit as a single PDSCH, and the first time unit is any one time unit occupied by the second repeated transmission.

Wherein the second repeated transmission is any one of repeated transmissions crossing a time unit boundary and corresponds to one of a plurality of target channels scheduled by the single DCI. Fig. 5 is a third schematic diagram of a repeated transmission method provided in the embodiment of the present application, as shown in fig. 5, wherein a specific disassembly method may follow a Segmentation (Segmentation) operation of a PUSCH repetition Type B.

In fig. 5, two PDSCHs are scheduled by a single DCI, wherein the repeated transmission of the second PDSCH crosses a slot boundary, a symbol before the crossed slot boundary corresponds to a single PDSCH, a symbol after the slot boundary corresponds to another PDSCH, and the corresponding two PDSCHs are respectively transceived.

Optionally, the determining, by the communication device, a time domain position of a repeated transmission for a plurality of target channels scheduled by a single DCI includes:

and under the condition that the target repetition times of the configuration or application of the scheduled target row in the time domain resource allocation table is greater than 1, the communication equipment determines the time domain positions of repeated transmission respectively corresponding to a plurality of target channels scheduled by the target row, wherein the target row is indicated in the single DCI.

Optionally, for any row of the TDRA table, a target Repetition number may be optionally configured, which is used to indicate the number of times the time domain resource allocation for this row is repeated, and when not configured, a default value of 1 may be considered to be adopted. It is understood that the target number of repetitions, which is actually the number of transmissions, includes the initial transmission. When the target repetition number of a certain row configuration or application is 1, that is, only 1 transmission is performed for the time domain resource allocation of the row, including only the initial transmission, or only the initial transmission is performed for one to multiple target channels scheduled based on the row; when the target repetition number of a certain row configuration or application is greater than 1, that is, the time domain resource allocation for the row is allocated to perform (target repetition number) transmission, in addition to performing initial transmission, the row may also perform (target repetition number-1) repeated transmission, or in other words, the row scheduling based on one or more target channels may each perform (target repetition number) transmission respectively, wherein the initial transmission and (target repetition number-1) repeated transmission are included.

However, in the case that the target Repetition number of the scheduled target row configuration or application in the time domain resource allocation table is greater than 1, that is, when the target Repetition number of a certain row configuration or application of the TDRA table is greater than 1 and the row is scheduled (that is, the time domain resource allocation indication field in the downlink scheduling DCI indicates the row), the communication device may determine, by using the following slot-based retransmission method, time domain positions of repeated transmission corresponding to a plurality of target channels scheduled by the target row respectively.

Optionally, in this embodiment of the present application, the repeated transmission (Repetition) may include an initial transmission and a subsequent slot-based repeated transmission.

Optionally, when "determining the time domain position of the repeated transmission corresponding to any target channel", the actual operation includes determining the time domain position of all or each transmission of the target channel, including the time domain position of the initial transmission and the time domain position of the subsequent slot-based repeated transmission.

Optionally, the determining, by the communication device, time domain positions of repeated transmissions corresponding to a plurality of target channels scheduled by the target row respectively includes:

the communication equipment determines all target channels scheduled by the target row as a whole;

the communications device determines a time domain location of at least one repeated transmission of the ensemble.

Optionally, when the target repetition number configured or applied by the scheduled target row in the time domain resource allocation table is greater than 1, and the communication device determines the time domain positions of the repeated transmission corresponding to the multiple target channels scheduled by the target row by using a time slot-based repeated transmission method, all the target channels scheduled by the target row may be taken as a whole, for example, may be taken as a single data Burst (Burst), and perform repeated transmission on the entire Burst.

For example, assuming that the first target channel of the DCI schedule is located in slot m1 and the last target channel of the DCI schedule is located in slot m2, the number of slots spanned by all target channels of the DCI schedule is m2-m1+1. The time domain position of each target channel determined based on the configuration information (including K0 and the like corresponding to each SLIV) in the TDRAtable row may be used as the time domain position of the first transmission (the first Burst or the initial transmission). The subsequent first repeated transmission on a slot basis (second Burst) may be considered to start from slot m2+1+ M and also span m2-m1+1 slots. If Repetition number is greater than 2, then subsequent additional repeated transmissions (additional bursts) may be analogized.

The M may be configured by higher layer parameters or agreed upon by a protocol. For example, it may be optionally configured by higher layer parameters, with a default value of 0 when not configured. Alternatively, the value is directly agreed to be 0 by the protocol. When M is 0 and Repetition number is 2, the time domain position of the repeated transmission may be as shown in fig. 4, a single DCI schedules three PDSCHs, and the three PDSCHs may be taken as a whole to determine the time domain position of each corresponding repeated transmission. In fig. 4, if the target repetition number is 2, it is only necessary to determine the time domain position of the first repeated transmission, and the time domain position of the repeated transmission determines the time domain positions of the repeated transmissions corresponding to the three PDSCHs at the same time.

the communication equipment determines that each time slot spanned by a plurality of target channels scheduled by the target row is respectively and independently transmitted repeatedly;

the communication device determines a time domain position of an initial transmission corresponding to a first time slot and a time domain position of a subsequent time slot-based repeated transmission; wherein the first time slot is any one of the time slots.

Optionally, when the target repetition number configured or applied by a scheduled target row in a time domain resource allocation table (TDRA table) is greater than 1, and when the communication device determines, by using a time slot-based retransmission method, time domain positions of retransmission corresponding to each of multiple target channels scheduled by the target row, the communication device may separately perform retransmission on each time slot spanned by the multiple target channels scheduled by the target row, and then the communication device may determine a time domain position of initial transmission corresponding to a first time slot and a time domain position of subsequent retransmission based on the time slot; wherein the first time slot is any one of the time slots.

Fig. 6 is a fourth schematic diagram of a repeat transmission method according to an embodiment of the present application, and as shown in fig. 6, each time slot spanned by a plurality of target channels scheduled based on a target row may be separately and repeatedly transmitted, including performing corresponding initial transmission and subsequent time slot-based repeat transmission.

For example, assuming that the first target channel of the DCI schedule is located in slot m3 (corresponding to slot n in fig. 6) and the last target channel of the DCI schedule is located in slot m4 (corresponding to slot n +1 in fig. 6), the number of slots spanned by all target channels of the DCI schedule is m4-m3+1 (the number of slots spanned is 2 in fig. 6), which is assumed to be a. Each scheduling time slot (including all target channels in each scheduling time slot) in the a scheduling time slots is repeatedly transmitted in turn, for example, the first scheduling time slot is transmitted for B times (here, B is assumed to be a target repetition number), the first scheduling time slot includes 1 initial transmission and B-1 subsequent slot-based repeated transmissions, the second scheduling time slot is repeatedly transmitted from the next time slot, and so on.

In fig. 6, three PDSCHs are scheduled by a single DCI, and both the scheduled first and second PDSCHs are located at scheduling slot n and the scheduled third PDSCH is located at scheduling slot n +1 before performing the repeated transmission. Assuming that the applied target repetition number is 2, performing repeated transmission for a scheduling time slot n (including a first PDSCH and a second PDSCH in the scheduling time slot n), wherein the corresponding initial transmission and repeated transmission are respectively located in the time slot n and a time slot n + 1; and then, carrying out repeated transmission aiming at the scheduling time slot n +1 (including the third PDSCH in the scheduling time slot n + 1), wherein the corresponding initial transmission and repeated transmission are respectively positioned in the time slot n +2 and the time slot n + 3. It can be appreciated that the time slot in which the initial transmission of the third PDSCH is scheduled at this time is changed from the scheduled time slot in which it was scheduled before the repeated transmission was performed.

Optionally, when there is a scheduling slot (assumed to be an empty scheduling slot) that does not include any target channel in the a scheduling slots, for these air-conditioned slots, actually no repeat transmission may be performed, or only repeat transmission C times, where C is specified by a higher-layer parameter configuration or protocol, for example, a value of 1.

Optionally, the method further comprises:

the communication device judges whether a third target channel actually performs repeated transmission; wherein the third target channel is any one of a plurality of target channels scheduled by the single downlink control information DCI.

Optionally, when the number of target repetition times of the configuration or application of the scheduled target row in the time domain resource allocation table is greater than 1, and the communication device determines time domain positions of repeated transmission respectively corresponding to the multiple target channels scheduled by the target row by using a time slot-based repeated transmission method, the communication device may determine whether a third target channel actually performs repeated transmission; wherein the third target channel is any one of a plurality of target channels scheduled by the single downlink control information DCI.

Optionally, the determining, by the communication device, whether the third target channel actually performs repeated transmission includes:

determining that the third target channel actually performs repeated transmission under the condition that the communication device determines that the third target channel is an effective channel; wherein the effective channel includes: a channel in which the symbol corresponding to the first Ocvasion does not conflict with the semi-static time domain duplex TDD configuration information;

under the condition that the communication equipment determines that at least a first threshold number of occusions in the occusions corresponding to the third target channel can be actually transmitted, determining that the third target channel actually carries out repeated transmission;

determining that the third target channel actually carries out repeated transmission under the condition that the communication equipment determines that the proportion of the practical transmission in the Ocvasion corresponding to the third target channel exceeds a second threshold;

and under the condition that the communication equipment determines that the proportion of the practical transmission in the Ocvasion corresponding to the third target channel is greater than or equal to a third threshold, determining that the third target channel actually carries out repeated transmission.

Optionally, when the number of target repetition times configured or applied to the scheduled target row in the time domain resource allocation table is greater than 1, the communication device determines, by using a time slot-based retransmission method, time domain positions of retransmission corresponding to each of the multiple target channels scheduled by the target row, and when the communication device determines whether a third target channel actually performs retransmission, the determination may be based on at least one of the following:

determining that the third target channel actually performs repeated transmission when the communication device determines that the third target channel is an effective channel; wherein the effective channel includes: a channel in which the symbol corresponding to the first Ocvasion does not conflict with the semi-static time domain duplex TDD configuration information; or

Under the condition that the communication equipment determines that at least a first threshold number of occusions in the occusions corresponding to the third target channel can be actually transmitted, determining that the third target channel actually carries out repeated transmission, wherein the occusions corresponding to the third target channel comprise initial transmission corresponding to the third target channel and one or more times of repeated transmission; or

Under the condition that the communication equipment determines that the proportion of the practical transmission in the Ocvasion corresponding to the third target channel exceeds a second threshold, determining that the third target channel actually carries out repeated transmission; or

It can be understood that when a certain scheduled PDSCH is actually repeatedly transmitted, a corresponding HARQ process is allocated. The Occasion may be understood as a transmission timing, including a timing corresponding to an initial transmission and a timing corresponding to a subsequent repeated transmission, where each timing corresponds to each transmission. When the symbols corresponding to a certain opportunity do not conflict with the semi-static time domain duplex TDD configuration information, it may be determined that the actual transmission is enabled or actually transmitted at that time. For a scheduled PDSCH that is actually repeatedly transmitted, there may be one or more corresponding occasions that are actually not transmitted.

For any of the above manners, for a certain scheduled PDSCH actually making repeat transmission, its allocated occupancy, or an actually transmittable occupancy, its corresponding TCI state/TRP may be determined in a manner corresponding to cyclic mapping or sequential mapping, for example, for a certain scheduled PDSCH actually making repeat transmission, when cyclic mapping is used, the first and second TCI states/TRPs respectively correspond to the first and second allocated occupancy or actually transmittable occupancy, and are continuously repeated based on this mapping pattern to determine the correspondence between the subsequently allocated occupancy or actually transmittable occupancy and TCI/TRP, when sequential mapping is used, the first TCI state/TRP corresponds to the first and second allocated occupancy or actually transmittable occupancy, and when subsequent allocation is used, the second TCI state/TRP corresponds to the third and fourth allocated occupancy or actually transmittable occupancy, and is determined based on this actual mapped correspondence or actually repeated allocation.

Optionally, the multiple target channels scheduled by the single downlink control information DCI include:

all channels scheduled by a single DCI, or all valid channels in all channels scheduled by a single DCI;

wherein the effective channel comprises: and a channel in which no symbol corresponding to the initial transmission conflicts with the semi-static time domain duplex TDD configuration information, or a channel in which no symbol corresponding to the initial transmission conflicts with the semi-static time domain duplex TDD configuration information before the repeated transmission scheme is applied.

Optionally, the multiple target channels scheduled by a single downlink control information DCI may include:

all channels scheduled by a single DCI (which may be referred to as scheduling channels at this time), or all valid channels among all channels scheduled by a single DCI;

taking PDSCH as an example:

the scheduled PDSCH may be defined as: when a single DCI indicates a certain row in a TDRATable supporting Multi-PDSCH scheduling, one PDSCH in a PDSCH (time domain resource allocation information of a corresponding PDSCH is determined by SLIVs) corresponding to each SLIVs in one to multiple SLIVs configured in the row; for the TDRA tables supporting Multi-PDSCH scheduling, more than one SLIV is configured in at least one row of the TDRA tables.

And valid PDSCH: one of one to more scheduled PDSCHs scheduled by a single DCI, (the first assigned occupancy, or the occupancy corresponding to the initial transmission) may actually be transmitted; when none of the symbols corresponding to (the first occupancy of) the scheduled PDSCH collides with the Semi-static UL symbol, the scheduled PDSCH may be considered as a valid PDSCH. Note: when it comes to repeated transmission, it may be determined whether it is a valid PDSCH with reference to the requirement for the first occupancy.

It should be noted that, in the repeat transmission method provided in the embodiment of the present application, the execution main body may be a repeat transmission device, or a control module in the repeat transmission device for executing the repeat transmission method. In the embodiment of the present application, a repetitive transmission method executed by a repetitive transmission device is taken as an example to describe the repetitive transmission device provided in the embodiment of the present application.

Fig. 7 is a schematic structural diagram of a repeat transmission apparatus according to an embodiment of the present application, and as shown in fig. 7, the repeat transmission apparatus 700 includes: a first determination module 710; wherein:

the first determining module 710 is configured to determine time domain positions of multiple target channels that are scheduled by a single downlink control information DCI and are repeatedly transmitted;

the communication equipment is a terminal or network side equipment.

Alternatively, the repeated transmission apparatus 700 may determine, by the first determining module 710, time domain positions of multiple target channels scheduled by a single downlink control information DCI for repeated transmission.

Optionally, the first determining module is further configured to:

determining time unit offsets respectively applied to a plurality of target channels scheduled by the single DCI;

and determining time domain positions of repeated transmission corresponding to the plurality of target channels scheduled by the single DCI respectively based on the time unit offsets respectively applied to the plurality of target channels scheduled by the single DCI.

Optionally, the first determining module is further configured to:

determining that a uniform time unit offset applies to a plurality of target channels of the single DCI scheduling.

Optionally, the first determining module is further configured to:

determining the uniform time unit offset based on a configuration for a single one of the terminals or a configuration of a single bandwidth part, BWP, of the single one of the terminals.

Optionally, the first determining module is further configured to:

determining the unified time cell offset as a default value if the unified time cell offset is not configured.

Optionally, the first determining module is further configured to:

determining the offset corresponding to the scheduled target row in the time domain resource allocation table as the uniform time unit offset;

Optionally, the first determining module is further configured to:

in a case that the communication device is the terminal, determining the unified time unit offset based on a first indication in the single DCI.

Optionally, the first determining module is further configured to:

determining the unified time unit offset in case that the communication device is the network side device;

indicating the unified time unit offset to a terminal through a first indication in the single DCI.

Optionally, the first indication comprises at least one of:

first indication information, the first indication information dedicated to indicating the unified time unit offset;

a third index referring to a second list indicating the unified time unit offset corresponding to the third index, wherein the second list includes at least one second offset, each of the second offsets corresponds to a respective fourth index implicitly determined based on the position of its corresponding second offset in the second list; the third index is one of at least one fourth index and the unified time unit offset is one of the at least one second offset.

Optionally, the first determining module is further configured to:

determining that the plurality of target channels of the single DCI schedule apply respective time unit offsets, respectively.

Optionally, the first determining module is further configured to:

determining the offset corresponding to the first time domain resource allocation record as the time unit offset applied by the first target channel;

Optionally, the first determining module is further configured to:

in a case where the communication device is the terminal, determining, based on the second indication in the single DCI, time unit offsets to which the plurality of target channels scheduled by the single DCI are respectively applied.

Optionally, the first determining module is further configured to:

determining that the plurality of target channels scheduled by the single DCI apply respective time unit offsets, respectively, when the communication device is the network side device;

and indicating the time unit offset applied to each target channel in the plurality of target channels scheduled by the single DCI to the terminal through the second indication in the single DCI.

Optionally, the second indication comprises:

a fifth index, configured to indicate a first offset set corresponding to the fifth index in a third list, where the first offset set includes at least one time unit offset, and the at least one time unit offset is respectively and sequentially applied to different target channels in the multiple target channels, where the third list includes at least one sixth index and at least one second offset set, the fifth index is one of the at least one sixth index, the first offset set is one of the at least one second offset set, and each of the sixth indexes respectively corresponds to a respective second offset set;

Optionally, the first determining module is further configured to:

determining time unit offsets to be applied respectively by a plurality of target channels of the single DCI scheduling based on a predefined rule.

Optionally, the first determining module is further configured to:

determining a starting position of a time unit offset corresponding to a second target channel;

determining a time domain position of repeated transmission corresponding to the second target channel based on the starting position of the time unit offset corresponding to the second target channel;

Optionally, in a case that the time unit offset includes a symbol-level offset, a starting position of the time unit offset corresponding to the second target channel includes any one of:

a next symbol to a last symbol occupied by the second target channel;

the end time of the last symbol occupied by the second target channel;

a first symbol occupied by the second target channel.

the time slot of the second target channel;

the first repeat transmission does not cross a time cell boundary;

the first repeated transmission has no time-domain overlap with the corresponding target channel;

the first repeated transmission and each target channel scheduled by the single DCI do not have time domain overlapping;

the first repeated transmission has no time-domain overlap with the second channel;

transceiving the second repeated transmission as a single PDSCH;

Optionally, the first determining module is further configured to:

and under the condition that the target repetition times of the configuration or application of a scheduled target row in a time domain resource allocation table is greater than 1, determining time domain positions of repeated transmission respectively corresponding to a plurality of target channels scheduled by the target row, wherein the target row is indicated in the single DCI.

Optionally, the first determining module is further configured to:

determining all target channels scheduled by the target row as a whole;

a time domain location of at least one repeated transmission of the ensemble is determined.

Optionally, the first determining module is further configured to:

determining that each time slot spanned by a plurality of target channels scheduled by the target row is respectively and independently transmitted repeatedly;

determining a time domain position of initial transmission corresponding to a first time slot and a time domain position of subsequent time slot-based repeated transmission; wherein the first time slot is any one of the time slots.

Optionally, the apparatus further comprises:

the judging module is used for judging whether the third target channel actually carries out repeated transmission; wherein the third target channel is any one of a plurality of target channels scheduled by the single downlink control information DCI.

Optionally, the determining module is further configured to:

and under the condition that the communication equipment determines that the ratio of the practical transmission in the Ocvasion corresponding to the third target channel is greater than or equal to a third threshold, determining that the third target channel actually carries out repeated transmission.

The retransmission apparatus in the embodiment of the present application may be an apparatus, an apparatus or an electronic device having an operating system, or may be a component, an integrated circuit, or a chip in a terminal. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. For example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.

The retransmission apparatus provided in the embodiment of the present application can implement each process implemented in the method embodiments of fig. 2 to fig. 6, and achieve the same technical effect, and is not described here again to avoid repetition.

Optionally, fig. 8 is a schematic structural diagram of a communication device provided in an embodiment of the present application, as shown in fig. 8, an embodiment of the present application further provides a communication device 800, which includes a processor 801, a memory 802, and a program or an instruction stored in the memory 802 and executable on the processor 801, for example, when the communication device 800 is a terminal, the program or the instruction is executed by the processor 801 to implement each process of the above-mentioned repeat transmission method embodiment, and can achieve the same technical effect. When the communication device 800 is a network-side device, the program or the instructions are executed by the processor 801 to implement the processes of the above-described repeated transmission method embodiment, and the same technical effect can be achieved.

Optionally, the present application provides a communication device, which may be a terminal.

An embodiment of the present application further provides a terminal, including a processor and a communication interface, where the processor is configured to:

the communication equipment is a terminal or network side equipment.

The terminal embodiment corresponds to the method embodiment of the communication device, and all implementation processes and implementation manners of the method embodiment can be applied to the terminal embodiment and can achieve the same technical effect. Specifically, fig. 9 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.

The terminal 900 includes but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, and a processor 910, etc.

Those skilled in the art will appreciate that the terminal 900 may further include a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to the processor 910 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system. The terminal structure shown in fig. 9 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and thus will not be described again.

It should be understood that, in the embodiment of the present application, the input Unit 904 may include a Graphics Processing Unit (GPU) 9041 and a microphone 9042, and the Graphics Processing Unit 9041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 907 includes a touch panel 9071 and other input devices 9072. A touch panel 9071, also called a touch screen. The touch panel 9071 may include two parts, a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In this embodiment of the application, the radio frequency unit 901 receives downlink data from a network side device and then processes the downlink data to the processor 910; in addition, the uplink data is sent to the network side equipment. Generally, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 909 may be used to store software programs or instructions and various data. The memory 909 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 909 may include a high-speed random access Memory, and may also include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable PROM (EPROM), an Electrically Erasable Programmable ROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 910 may include one or more processing units; alternatively, the processor 910 may integrate an application processor, which mainly handles operating systems, user interfaces, and applications or instructions, etc., and a modem processor, which mainly handles wireless communications, such as a baseband processor. It is to be appreciated that the modem processor described above may not be integrated into processor 910.

Wherein the processor 910 is configured to:

the communication equipment is a terminal or network side equipment.

Optionally, the processor 910 is further configured to:

and determining time domain positions of repeated transmission corresponding to the plurality of target channels of the single DCI scheduling respectively based on the time unit offsets applied to the plurality of target channels of the single DCI scheduling respectively.

Optionally, the processor 910 is further configured to:

determining the unified time unit offset based on a first indication in the single DCI.

Optionally, the first indication comprises at least one of:

a first index, configured to indicate the unified time unit offset corresponding to the first index in a first list, wherein the first list includes at least one second index and at least one first offset, the first index is one of the at least one second index, the unified time unit offset is one of the at least one first offset, and each of the second indexes corresponds to a respective first offset;

Optionally, the processor 910 is further configured to:

determining that the plurality of target channels scheduled by the single DCI respectively apply respective time unit offsets.

Optionally, the processor 910 is further configured to:

determining, based on a second indication in the single DCI, time unit offsets to which a plurality of target channels scheduled by the single DCI are respectively applied.

Optionally, the second indication comprises:

a seventh index, configured to indicate a third offset set corresponding to the seventh index in a fourth list, where the third offset set includes at least one time unit offset, and the at least one time unit offset is respectively and sequentially applied to different target channels in the plurality of target channels, and the fourth list includes at least one fourth offset set, each of the fourth offset sets respectively corresponds to a respective eighth index implicitly determined based on a position of the corresponding fourth offset set in the fourth list; the seventh index is one of the at least one eighth index, and the third offset set is one of the at least one fourth offset set.

Optionally, the processor 910 is further configured to:

determining the starting position of the time unit offset corresponding to the second target channel;

In a case that the time cell offset comprises a symbol-level offset, a starting position of the time cell offset corresponding to the second target channel comprises any one of:

a next symbol to a last symbol occupied by the second target channel;

the end time of the last symbol occupied by the second target channel;

a first symbol occupied by the second target channel.

Optionally, in a case that the time unit offset includes a slot level offset, and the communication device determines that the plurality of target channels scheduled by the single DCI each apply a respective time unit offset, a starting position of the time unit offset corresponding to the second target channel includes any one of:

a time slot in which the second target channel is located;

Optionally, in a case that the time unit offset includes a slot level offset, and the communication device determines that a plurality of target channels of the single DCI schedule apply a uniform time unit offset, a starting position of the time unit offset corresponding to the second target channel includes any one of:

the time slot of the second target channel;

Optionally, where the time unit offset comprises a symbol level offset, the repeated transmission of the plurality of target channels scheduled by the single DCI satisfies at least one of:

the first repeat transmission does not cross a time cell boundary;

transceiving the second repeated transmission as a single PDSCH;

performing disassembly processing on second repeated transmission, and transmitting and receiving the second repeated transmission, wherein the disassembly processing on the second repeated transmission comprises using all symbols of the second repeated transmission in a first time unit as a single PDSCH, and the first time unit is any time unit occupied by the second repeated transmission;

Optionally, the processor 910 is further configured to:

and under the condition that the target repetition times of the configuration or application of the scheduled target row in the time domain resource allocation table is greater than 1, determining the time domain positions of repeated transmission respectively corresponding to a plurality of target channels scheduled by the target row, wherein the target row is indicated in the single DCI.

Optionally, the processor 910 is further configured to:

determining all target channels scheduled by the target row as a whole;

Optionally, the processor 910 is further configured to:

judging whether the third target channel actually carries out repeated transmission; wherein the third target channel is any one of a plurality of target channels scheduled by the single downlink control information DCI.

Optionally, the processor 910 is further configured to:

determining that the third target channel actually performs repeated transmission when the communication device determines that the third target channel is an effective channel; wherein the effective channel includes: a channel in which the symbol corresponding to the first Ocvasion does not conflict with the semi-static time domain duplex TDD configuration information;

under the condition that the communication equipment determines that the proportion of the practical transmission in the Ocvasion corresponding to the third target channel exceeds a second threshold, determining that the third target channel actually carries out repeated transmission;

Optionally, the present application provides a communication device, which may be a network side device.

An embodiment of the present application further provides a network-side device, which includes a processor and a communication interface, where the processor is configured to:

the communication equipment is a terminal or network side equipment.

The embodiment of the network side device corresponds to the embodiment of the method of the communication device, and all implementation processes and implementation manners of the embodiment of the method can be applied to the embodiment of the network side device and can achieve the same technical effect.

Specifically, the embodiment of the application further provides a network side device. Fig. 10 is a schematic diagram of a hardware structure of a network-side device for implementing an embodiment of the present application, and as shown in fig. 10, the network-side device 1000 includes: antenna 1001, rf device 1002, and baseband device 1003. The antenna 1001 is connected to the radio frequency device 1002. In the uplink direction, rf device 1002 receives information via antenna 1001, and transmits the received information to baseband device 1003 for processing. In the downlink direction, the baseband device 1003 processes information to be transmitted and transmits the information to the rf device 1002, and the rf device 1002 processes the received information and transmits the processed information through the antenna 1001.

The above band processing means may be located in the baseband means 1003, and the method executed by the network side device in the above embodiment may be implemented in the baseband means 1003, where the baseband means 1003 includes a processor 1004 and a memory 1005.

The baseband apparatus 1003 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 10, where one of the chips is, for example, a processor 1004, and is connected to a memory 1005 to call up a program in the memory 1005 to execute the network device operations shown in the above method embodiments.

The baseband device 1003 may further include a network interface 1006, for exchanging information with the radio frequency device 1002, and the interface is, for example, a Common Public Radio Interface (CPRI).

Specifically, the network side device according to the embodiment of the present invention further includes: the instructions or programs stored in the memory 1005 and executable on the processor 1004 are called by the processor 1004 to execute the method executed by each module shown in fig. 7, and achieve the same technical effect, and are not described herein for avoiding repetition.

Wherein the processor 1004 is configured to:

the communication equipment is a terminal or network side equipment.

Optionally, the processor 1004 is further configured to:

determining that a plurality of target channels of the single DCI schedule apply a uniform time unit offset.

Optionally, the processor 1004 is further configured to:

determining the uniform time cell offset;

Optionally, the first indication comprises at least one of:

Optionally, the processor 1004 is further configured to:

determining that respective time unit offsets are applied to a plurality of target channels scheduled by the single DCI respectively;

Optionally, the second indication comprises:

a seventh index, configured to indicate a third offset set corresponding to the seventh index in a fourth list, where the third offset set includes at least one time unit offset, and the at least one time unit offset is respectively and sequentially applied to different target channels in the plurality of target channels, and the fourth list includes at least one fourth offset set, each of the fourth offset sets respectively corresponds to a respective eighth index implicitly determined based on a position of the corresponding fourth offset set in the fourth list; the seventh index is one of the entries of at least one eighth index, and the third offset set is one of the entries of the at least one fourth offset set.

Optionally, the processor 1004 is further configured to:

determining a time domain position of repeated transmission corresponding to the second target channel based on a starting position of a time unit offset corresponding to the second target channel;

a next symbol to a last symbol occupied by the second target channel;

the end time of the last symbol occupied by the second target channel;

a first symbol occupied by the second target channel.

the time slot of the second target channel;

a time slot next to the last time slot in the time slot set corresponding to the plurality of target channels scheduled by the single DCI;

a first time slot in a time slot set corresponding to a plurality of target channels scheduled by the single DCI.

the time slot of the second target channel;

the first repeat transmission does not cross a time cell boundary;

transceiving the second repeated transmission as a single PDSCH;

Optionally, the processor 1004 is further configured to:

determining all target channels scheduled by the target row as a whole;

the communication device determines a time domain location of the at least one repeated transmission of the ensemble.

Optionally, the processor 1004 is further configured to:

determining that the third target channel actually performs repeated transmission under the condition that the communication device determines that the third target channel is an effective channel; wherein the effective channel includes: a channel in which symbols corresponding to the first Occasion do not conflict with semi-static time domain duplex TDD configuration information;

determining that the third target channel actually carries out repeated transmission under the condition that the communication equipment determines that at least a first threshold number of Ocvasions in the Ocvasion corresponding to the third target channel can actually carry out transmission;

wherein the effective channel includes: and a channel in which no symbol corresponding to the initial transmission conflicts with the semi-static time domain duplex TDD configuration information, or a channel in which no symbol corresponding to the initial transmission conflicts with the semi-static time domain duplex TDD configuration information before the repeated transmission scheme is applied.

The embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the foregoing repeated transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the foregoing repeated transmission method embodiment, and can achieve the same technical effect, and is not described here again to avoid repetition.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip.

The embodiment of the present application further provides a computer program/program product, where the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement each process of the above-mentioned system message report reporting method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application or portions thereof that contribute to the prior art may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method of repeated transmission, comprising:

the communication equipment is a terminal or network side equipment.

2. The repetitive transmission method according to claim 1, wherein the determining, by the communication device, the time domain position of the repetitive transmission of the multiple target channels scheduled by the single DCI comprises:

the communication device determines time unit offsets applied by a plurality of target channels of the single DCI scheduling respectively;

3. The repetitive transmission method of claim 2, wherein the time unit offset comprises a symbol level offset or a slot level offset.

4. The method of claim 2 or 3, wherein the determining, by the communications device, the time unit offset to which the plurality of target channels of the single DCI scheduling respectively apply comprises:

5. The method of claim 4, wherein the determining, by the communications device, that the plurality of target channels of the single DCI scheduling apply a uniform time unit offset comprises:

the communication device determines the uniform time unit offset based on a configuration for a single one of the terminals or a configuration of a single bandwidth part, BWP, of the single one of the terminals.

6. The repetitive transmission method of claim 4, wherein the determining by the communications device that the plurality of target channels of the single DCI schedule apply a uniform time unit offset comprises:

7. The repetitive transmission method of claim 4, wherein the determining by the communications device that the plurality of target channels of the single DCI schedule apply a uniform time unit offset comprises:

8. The repetitive transmission method according to claim 4, wherein the determining, by the communication device, that the plurality of target channels of the single DCI scheduling apply the uniform time unit offset in the case that the communication device is the terminal comprises:

9. The repetitive transmission method according to claim 4, wherein in a case that the communication device is the network side device, the determining, by the communication device, that the plurality of target channels of the single DCI scheduling apply a uniform time unit offset comprises:

the network side device determines the unified time unit offset;

10. The repetitive transmission method as claimed in claim 8 or 9, wherein said first indication comprises at least one of:

11. The repetitive transmission method according to claim 2 or 3, wherein the determining, by the communication device, the time unit offset to which the plurality of target channels of the single DCI scheduling are respectively applied comprises:

12. The repetitive transmission method of claim 11, wherein the determining, by the communications device, that the respective time unit offsets are applied to the plurality of target channels of the single DCI schedule comprises:

13. The repetitive transmission method according to claim 11, wherein in a case where the communication device is the terminal, the determining, by the communication device, that the respective time unit offsets are applied to the plurality of target channels scheduled by the single DCI includes:

14. The repeated transmission method according to claim 11, wherein in the case that the communication device is the network-side device, the determining, by the communication device, that the respective time unit offsets are applied to the plurality of target channels scheduled by the single DCI includes:

and the network side equipment indicates the time unit offset respectively applied to each target channel in the plurality of target channels scheduled by the single DCI to a terminal through the second indication in the single DCI.

15. The repetitive transmission method according to claim 13 or 14, wherein said second indication comprises:

a fifth index, configured to indicate a first offset set corresponding to the fifth index in a third list, where the first offset set includes at least one time unit offset, and the at least one time unit offset is sequentially applied to different target channels in the plurality of target channels, respectively, and the third list includes at least one sixth index and at least one second offset set, where the fifth index is one of the at least one sixth index, the first offset set is one of the at least one second offset set, and each of the sixth indexes corresponds to a respective second offset set;

a seventh index, configured to indicate a third offset set corresponding to the seventh index in a fourth list, where the third offset set includes at least one time unit offset, and the at least one time unit offset is sequentially applied to different target channels in the multiple target channels, respectively, where the fourth list includes at least one fourth offset set, each of the fourth offset sets corresponds to a respective eighth index, and the eighth index is implicitly determined based on a position of the corresponding fourth offset set in the fourth list; the seventh index is one of the at least one eighth index, and the third offset set is one of the at least one fourth offset set.

16. The repetitive transmission method of claim 11, wherein the determining, by the communications device, that the respective time unit offsets are applied to the plurality of target channels of the single DCI schedule comprises:

17. The method according to any of claims 5-9 or any of claims 12-14 or 16, wherein the determining, by the communication device, the time domain positions of the repeated transmissions corresponding to the respective target channels of the single DCI schedule based on the time unit offsets applied to the respective target channels of the single DCI schedule comprises:

18. The repetitive transmission method as claimed in claim 17, wherein in case that the time unit offset comprises a symbol-level offset, the starting position of the time unit offset corresponding to the second target channel comprises any one of:

a next symbol to a last symbol occupied by the second target channel;

the end time of the last symbol occupied by the second target channel;

a first symbol occupied by the second target channel.

19. The repetitive transmission method according to claim 17, wherein in a case where the time unit offset comprises a slot level offset and the communication device determines that the respective time unit offsets are applied to the plurality of target channels scheduled by the single DCI, a starting position of the time unit offset corresponding to the second target channel comprises any one of:

the time slot of the second target channel;

20. The repetitive transmission method according to claim 17, wherein in case that the time unit offset comprises a slot level offset and the communication device determines that a plurality of target channels of the single DCI schedule apply a uniform time unit offset, the starting position of the time unit offset corresponding to the second target channel comprises any one of:

a time slot in which the second target channel is located;

21. The method of repeated transmission according to any of claims 5-9 or any of claims 12-14 or 16, wherein in case the time unit offset comprises a symbol level offset, the repeated transmission of multiple target channels of the single DCI schedule satisfies at least one of:

the first repeat transmission does not cross a time cell boundary;

22. The method of repeated transmission according to any of claims 5-9 or any of claims 12-14 or 16, wherein in case the time unit offset comprises a slot level offset, the repeated transmission of multiple target channels of the single DCI schedule satisfies at least one of:

23. The repetitive transmission method according to claim 17, wherein in case that the repetitive transmission corresponding to at least one of the plurality of target channels of the single DCI schedule crosses the time unit boundary, the repetitive transmission of the plurality of target channels of the single DCI schedule is performed in a manner including any one of:

transceiving the second repeated transmission as a single PDSCH;

24. The repetitive transmission method of claim 1, wherein the determining, by the communications device, the time domain location of the repetitive transmission of the plurality of target channels scheduled by the single DCI comprises:

when the target repetition times of the scheduled target row configuration or application in the time domain resource allocation table is greater than 1, the communication device determines time domain positions of repeated transmission respectively corresponding to a plurality of target channels scheduled by the target row, wherein the target row is indicated in the single DCI.

25. The method of claim 24, wherein the determining, by the communication device, time-domain positions of the repeated transmissions corresponding to the plurality of target channels scheduled by the target row respectively comprises:

26. The method of claim 24, wherein the determining, by the communications device, time-domain positions of repeated transmissions corresponding to the plurality of target channels scheduled by the target row respectively comprises:

27. The repetitive transmission method according to any of claims 24-26, further comprising:

28. The repetitive transmission method according to claim 27, wherein the determining by the communication device whether the third target channel actually performs the repetitive transmission comprises:

29. The repetitive transmission method according to any one of claims 1 to 3, or any one of claims 5 to 9, or any one of claims 12 to 14, or any one of claims 16, or any one of claims 18 to 20, or any one of claims 23 to 26, or 28, wherein the plurality of target channels scheduled by the single DCI comprises:

30. A repeat transmission device, comprising:

a first determining module, configured to determine time domain positions where multiple target channels scheduled by a single DCI are repeatedly transmitted;

the communication equipment is a terminal or network side equipment.

31. The repetitive transmitting device of claim 30, wherein the first determining module is further configured to:

32. The repetitive transmission device of claim 31, wherein the time unit offset comprises a symbol level offset or a slot level offset.

33. The repetitive transmitting device of claim 31 or 32, wherein the first determining module is further configured to:

34. The repetitive transmitting device of claim 31 or 32, wherein the first determining module is further configured to:

35. The repetitive transmitting device of claim 30, wherein the first determining module is further configured to:

36. The repetitive transmitting device of claim 35, wherein the first determining module is further configured to:

determining all target channels scheduled by the target row as a whole;

37. The repetitive transmitting device of claim 35, wherein the first determining module is further configured to:

38. A communications device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the repeat transmission method of any of claims 1 to 29.

39. A readable storage medium, on which a program or instructions are stored, which program or instructions, when executed by a processor, carry out the steps of the repeat transmission method of any of claims 1 to 29.