CN113711517B

CN113711517B - Method, apparatus and computer storage medium for determining time domain resources for data transmission

Info

Publication number: CN113711517B
Application number: CN201980095224.6A
Authority: CN
Inventors: 方昀; 徐婧; 史志华; 陈文洪; 黄莹沛
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2023-08-15
Anticipated expiration: 2039-09-30
Also published as: CN113711517A; WO2021062813A1

Abstract

The embodiment of the application discloses a method for determining time domain resources of data transmission and a related product, wherein the method comprises the following steps: determining a target time domain resource of repeated transmission according to a first time domain resource and a second time domain resource in repeated transmission, wherein the first time domain resource is a time domain resource which cannot be occupied by repeated transmission, the second time domain resource is a time domain resource of initial repeated transmission, the second time domain resource comprises a third time domain resource overlapped with the first time domain resource and a fourth time domain resource except the third time domain resource, and the target time domain resource comprises the fourth time domain resource; and transmitting data on the repeated transmission target time domain resource. The embodiment of the application reduces the length of continuous time domain resources required by repeated data transmission, thereby reducing the time delay of repeated data transmission.

Description

Method, apparatus and computer storage medium for determining time domain resources for data transmission

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, and a computer storage medium for determining a time domain resource of data transmission.

Background

In a communication system, the reliability of data transmission can be improved by means of repeated data transmission. At present, the repeated transmission of data configured by the network equipment is configured based on the time domain resources of continuous repeated transmission, but because flexible time slot configuration and transmission of other important system information are supported in the existing communication system, it is difficult to find the continuous time domain resources for repeated transmission of data in the communication system.

Disclosure of Invention

The application provides a method, a device and a computer storage medium for determining time domain resources of data transmission, which reduce the length of continuous time domain resources required by repeated data transmission, thereby reducing the time delay of repeated data transmission.

In a first aspect, an embodiment of the present application provides a method for determining a time domain resource for data transmission, including:

determining a target time domain resource of repeated transmission according to a first time domain resource and a second time domain resource in repeated transmission, wherein the first time domain resource is a time domain resource which cannot be occupied by the repeated transmission, the second time domain resource is a time domain resource of initial repeated transmission, the second time domain resource comprises a third time domain resource overlapped with the first time domain resource and a fourth time domain resource except the third time domain resource, and the target time domain resource comprises the fourth time domain resource;

and transmitting data on the repeated transmission target time domain resource.

It can be seen that, compared with the conventional method for determining the time domain resource of data transmission, the repeated transmission of the data configured by the network device is configured based on the time domain resource of continuous repeated transmission, for example, the repeated number of times of repeated transmission configured by the network device is 3, each repeated transmission needs to occupy 2 symbols, and then 6 continuous symbols are needed for repeated transmission of the data, but because flexible time slot configuration and transmission of other important system information are supported in the existing communication system, it is difficult to find the continuous time domain resource for repeated transmission of the data in the communication system. According to the embodiment of the application, the target time domain resource of the repeated transmission is determined according to the first time domain resource and the second time domain resource in the repeated transmission, the first time domain resource is the time domain resource which cannot be occupied by the repeated transmission, the second time domain resource is the time domain resource of the initial repeated transmission, the second time domain resource comprises the third time domain resource overlapped with the first time domain resource and the fourth time domain resource except the third time domain resource, the target time domain resource comprises the fourth time domain resource, for example, the second time domain resource is the first symbol to the tenth symbol of the 10 th time slot (slot), the first time slot resource is the third symbol to the fifth symbol of the 10 th slot, the third time slot resource overlapped with the first time slot resource can be the third symbol to the fifth symbol of the 10 th slot, the fourth time domain resource can be the first symbol, the second symbol and the fourth symbol to the tenth symbol of the third slot, and the fourth symbol can be the first symbol of the 10 th slot, and the fourth symbol can further reduce the time delay of the repeated data transmission on the first symbol to the tenth symbol, and the repeated data transmission is reduced.

In one possible design, the second time domain resource is determined according to the time domain resource of the first transmission in the repeated transmission, the number of repetitions of the repeated transmission, and a TRP switching interval between any two adjacent repeated transmissions; or the second time domain resource is determined according to the starting time of the first transmission in the repeated transmission, the length of the time domain resource required by each repeated transmission and the switching interval between any two adjacent repeated transmissions, and each TRP corresponds to a TCI state or corresponds to an index value configured by a higher layer.

In one possible design, the first time domain resource is determined according to time domain resource indication information, the time domain resource indication information including first information including unavailable time domain resource information and/or second information including SFI.

In one possible design, the time domain resource indication information includes first information, and the first time domain resource is a time domain resource indicated by the first information.

In one possible design, the time domain resource indication information includes first information, where the first information includes signal configuration information, and the first time domain resource is a fifth time domain resource occupied by a signal indicated by the signal configuration information.

In one possible design, the second time domain resource includes the fifth time domain resource, and a frequency domain resource corresponding to the fifth time domain resource in the initial repeated transmission is the same as a frequency domain resource occupied by the signal indicated by the signal configuration information.

In one possible design, the signal indicated by the signal configuration information includes at least one of: PRACH, SRS, SSB and PRS.

In one possible design, the time domain resource indication information includes second information including uplink resources, downlink resources, and flexible resources;

if the repeated transmission is multiple transmissions of the PUCCH or PUSCH, the first time domain resource is the downlink resource, or the downlink resource and the first part of the flexible resource, or all of the downlink resource and the flexible resource;

and if the repeated transmission is multiple transmissions of the PDCCH or the PDSCH, the first time domain resource is the uplink resource, or the uplink resource and the first part of the flexible resource, or all of the uplink resource and the flexible resource.

In one possible design, the time domain resource indication information is configured dynamically by PDCCH, or semi-statically by higher layer signaling, or preconfigured.

In one possible design, the first information is transmitted through physical layer signaling or higher layer signaling.

In one possible design, the time domain resource for each of the repeated transmissions is a contiguous time domain resource.

In one possible design, the length of the time domain resource of each repetition transmission is the same, and the length of the continuous time domain resource in the target time domain resource is greater than or equal to the length of the time domain resource of each repetition transmission.

In one possible design, the length of the time domain resource of each repetition transmission is different, the initial resource in the target time domain resource is determined according to a rule of continuous resource mapping, and the length of the target time domain resource is smaller than the product of the length of the time domain resource required by each transmission and the repetition number;

the transmitting data on the repeated transmission target time domain resource comprises the following steps:

if the length of the time domain resource of the nth retransmission in the retransmission is smaller than the length of the time domain resource required by each transmission, transmitting a first part of the data on the time domain resource of the nth retransmission, wherein n is a positive integer, n is greater than 0 and less than or equal to the repetition number, and the length of the first part is the same as the length of the time domain resource of the nth retransmission;

And if the length of the time domain resource of the nth retransmission in the retransmission is equal to the length of the time domain resource required by each transmission, transmitting the data on the time domain resource of the nth retransmission.

In one possible design, the time domain resource of at least one of the repeated transmissions is a discontinuous time domain resource, the length of the time domain resource of each repeated transmission is the same, and the initial resource in the target time domain resource is determined according to a rule of continuous resource mapping;

and transmitting a second part of the data on a time domain resource after the time domain resource of the nth repeated transmission in the target time domain resource, wherein the second part is the content except the first part in the data.

In one possible design, the length of the time domain resource of the nth retransmission of the retransmissions is less than the length of the time domain resource required for each retransmission;

and respectively transmitting the data on the time domain resources of the first to n-1 th repeated transmissions, wherein n is a positive integer, and n is more than 0 and less than or equal to the repeated times.

In one possible design, the transmitting data on the repeated transmission target time domain resource further includes:

and transmitting the first part of the data on the time domain resource of the nth retransmission, wherein the length of the first part is the same as that of the time domain resource of the nth retransmission.

In one possible design, the time domain resource of at least one of the repeated transmissions is a discontinuous time domain resource, and the length of the time domain resource of each repeated transmission is the same;

after the transmitting the first portion of the data on the time domain resource of the nth retransmission, further comprising:

In one possible design, the first time domain resource includes a time domain resource determined according to a rule of continuous resource mapping, and the starting resource in the target time domain resource is a time domain resource that can be occupied by the first one of the repeated transmissions after the time domain resource determined according to the rule of continuous resource mapping.

In one possible design, the repeated transmissions include at least one transmission of an uplink transmission or at least one transmission of a downlink transmission.

In a second aspect, an embodiment of the present application provides a communication device, where the communication device has a function of implementing the method described in the first aspect. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In a third aspect, an embodiment of the present application provides a communication device comprising a processor, a memory, and a transceiver, the processor, the memory, and the transceiver being coupled, characterized in that,

the memory is used for storing instructions;

the processor is configured to determine a target time domain resource of repeated transmission according to a first time domain resource and a second time domain resource in repeated transmission, where the first time domain resource is a time domain resource that cannot be occupied by the repeated transmission, the second time domain resource is a time domain resource of initial repeated transmission, the second time domain resource includes a third time domain resource overlapping with the first time domain resource, and a fourth time domain resource other than the third time domain resource, and the target time domain resource includes the fourth time domain resource;

The transceiver is configured to transmit data on the repeated transmission target time domain resource.

In a fourth aspect, an embodiment of the present application provides a computer storage medium, where the computer readable storage medium stores a computer program or instructions, which when executed by a processor, cause the processor to perform the device activation method according to the first aspect.

In a fifth aspect, embodiments of the present application provide a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps described in the first aspect of the embodiments of the present application. The computer program product may be a software installation package.

Drawings

The drawings that accompany the embodiments or the prior art description can be briefly described as follows.

Fig. 1 is a schematic view of a communication system according to an embodiment of the present application;

fig. 2 is a flowchart of a method for determining a time domain resource for data transmission according to an embodiment of the present application;

fig. 3 is a flowchart of another method for determining time domain resources for data transmission according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a first time domain resource according to an embodiment of the present application;

fig. 5 is a schematic diagram of another first time domain resource according to an embodiment of the present application;

FIG. 6 is a schematic diagram of another first time domain resource provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of another first time domain resource provided by an embodiment of the present application;

fig. 8 is a schematic diagram of another first time domain resource according to an embodiment of the present application;

fig. 9 is a schematic diagram of another first time domain resource provided by an embodiment of the present application;

fig. 10 is a schematic diagram of another first time domain resource provided by an embodiment of the present application;

fig. 11 is a schematic diagram of a time domain resource according to an embodiment of the present application;

fig. 12 is a schematic diagram of another time domain resource provided by an embodiment of the present application;

fig. 13 is a schematic diagram of another time domain resource provided by an embodiment of the present application;

fig. 14 is a schematic diagram of another time domain resource provided by an embodiment of the present application;

fig. 15 is a schematic diagram of another time domain resource provided by an embodiment of the present application;

FIG. 16 is a schematic diagram of another time domain resource provided by an embodiment of the present application;

FIG. 17 is a schematic diagram of another time domain resource provided by an embodiment of the present application;

FIG. 18 is a schematic diagram of another time domain resource provided by an embodiment of the present application;

FIG. 19 is a schematic diagram of another time domain resource provided by an embodiment of the present application;

FIG. 20 is a schematic diagram of another time domain resource provided by an embodiment of the present application;

FIG. 21 is a schematic diagram of another time domain resource provided by an embodiment of the present application;

FIG. 22 is a schematic diagram of another time domain resource provided by an embodiment of the present application;

FIG. 23 is a schematic diagram of another time domain resource provided by an embodiment of the present application;

fig. 24 is a schematic diagram of another time domain resource provided by an embodiment of the present application;

fig. 25 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 26 is a schematic structural diagram of another communication device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (Frequency Division Duplex, FDD) system, LTE time division duplex (Time Division Duplex, TDD) system, long term evolution advanced (Advanced long term evolution, LTE-a) system, new Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed frequency band, NR-U system, universal mobile telecommunication system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wiMAX) communication system, wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wiFi), next generation communication system or other communication system, etc. With the development of communication technology, a mobile communication system will support not only conventional communication but also, for example, device-to-Device (D2D) communication, machine-to-machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), and inter-vehicle (Vehicle to Vehicle, V2V) communication, etc., to which the embodiments of the present application can also be applied.

Referring to fig. 1, fig. 1 is a schematic diagram of a communication system scenario in which an embodiment of the present invention is applied. As shown in fig. 1, the communication system includes a network device 110 and at least one terminal device 120 in communication with the network device 110.

The network device 110 is a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal). Optionally, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

"terminal device" as used herein includes, but is not limited to, a connection via a wireline, such as via a public-switched telephone network (Public Switched Telephone Networks, PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, direct cable connection; and/or another data connection/network; and/or via a wireless interface, e.g., for a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and/or means of the other terminal device arranged to receive/transmit communication signals; and/or internet of things (Internet of Things, ioT) devices. Terminal devices arranged to communicate via a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal device may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved PLMN, etc.

Fig. 1 exemplarily illustrates one network device and one terminal device, alternatively, the communication system may include a plurality of network devices and each network device may communicate with one or more terminal devices, which is not limited by the embodiment of the present application.

It should be understood that a device having a communication function in a network/system according to an embodiment of the present application may be referred to as a communication device. Taking the communication system shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions, where the network device 110 and the terminal device 120 may be specific devices described above, and are not described herein again; the communication device may also include other devices in the communication system, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely one kind of association relation describing the association object, meaning that three kinds of relations may exist, e.g., a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/", herein generally indicates that the associated object is an "or" relationship.

In order to ensure communication quality when the network device 110 and the terminal device 120 communicate, the reliability of data transmission can be improved by repeating data transmission. In the prior art, the repeated transmission data needs to be transmitted on continuous time domain resources. For example, assuming that the length of time domain resources required for the network device to configure each retransmission is 3 symbols and the number of repetitions of the retransmission is 3, the terminal device or the network device needs 9 consecutive symbols for the repeated transmission of data according to the related art method. However, since the existing communication system supports flexible timeslot configuration and transmission of other important system information, it is difficult to find continuous time domain resources for repeated transmission of data in the communication system, which increases the delay of repeated transmission of data between the network device 110 and the terminal device 120.

The application provides a method for determining time domain resources of data transmission and related products, the method comprises the steps of determining target time domain resources of repeated transmission according to first time domain resources and second time domain resources in repeated transmission, wherein the first time domain resources are time domain resources which cannot be occupied by the repeated transmission, the second time domain resources are time domain resources of initial repeated transmission, the second time domain resources comprise third time domain resources overlapped with the first time domain resources and fourth time domain resources except the third time domain resources, the target time domain resources comprise the fourth time domain resources, for example, the second time domain resources are first to tenth symbols of a 10 th slot, the first time slot resources are third to fifth symbols of the 10 th slot, then the third time slot resources overlapped with the first time slot resources in the second time domain resources can be third to fifth symbols of the 10 th slot, the fourth time domain resources can be first symbols, the second symbols and fourth symbols and the sixth symbols can be the fifth symbols of the 10 th slot, and the fourth symbols can be the tenth symbols, and the repeated data transmission length of the fourth symbols can be reduced, and the repeated data transmission can be further carried out on the fifth symbols and the fifth symbols.

Wherein the target time domain resource cannot be earlier than the second time domain resource, but can be later than the second time domain resource. The target time domain resource cannot be earlier than the second time domain resource, which can be understood as: the first symbol in the target time domain resource is the same as the first symbol in the second time domain resource or the first symbol in the target time domain resource follows the first symbol in the second time domain resource. The target time domain resource may be later than the second time domain resource, which may be understood as: the last symbol in the target time domain resource may precede the last symbol in the second time domain resource or the last symbol in the target time domain resource and the last symbol in the second time domain resource may be the same. Or the last symbol in the target time domain resource follows the last symbol in the second time domain resource.

If the repeated transmission is multiple transmissions of a physical uplink control channel (Physical Uplink Control Channel, PUCCH) or a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), the terminal device may determine a target time domain resource of the repeated transmission according to the first time domain resource and the second time domain resource in the repeated transmission, and send data on the target time domain resource of the repeated transmission. The network device may determine a target time domain resource for repeated transmission according to the first time domain resource and the second time domain resource in repeated transmission, and receive data on the target time domain resource for repeated transmission.

If the repeated transmission is a multiple transmission of a physical downlink control channel (Physical Downlink Control Channel, PDCCH) or a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), the network device may determine a target time domain resource of the repeated transmission according to the first time domain resource and the second time domain resource in the repeated transmission, and send data on the target time domain resource of the repeated transmission. The terminal device may determine a target time domain resource of the repeated transmission according to the first time domain resource and the second time domain resource in the repeated transmission, and receive data on the target time domain resource of the repeated transmission.

The method of determining the time domain resources for data transmission is described in detail below.

Referring to fig. 2, fig. 2 is a flow chart illustrating a method for determining time domain resources of data transmission according to an embodiment of the present invention, where the method includes some or all of the following:

201. and the terminal equipment determines the target time domain resource of the repeated transmission according to the first time domain resource and the second time domain resource in the repeated transmission.

Wherein, the repeated transmission may include at least one transmission of an uplink transmission or at least one transmission of a downlink transmission.

The first time domain resource is a time domain resource which is unoccupied by the repeated transmission, that is, the repeated transmission can only transmit data on the time domain resource except the first time domain resource. The determining manner of the first time domain resource may include any one of the following:

1. the first time domain resource may be determined by the terminal device according to time domain resource indication information, and the time domain resource indication information may be sent by the network device to the terminal device. The following embodiments describe a method for determining the first time domain resource in detail. Wherein the time domain resource indication information comprises first information and/or second information. The first information includes the time domain resource information which is unoccupied by the repeated transmission. The second information includes slot format information (slot format indicator, SFI), which includes a semi-static SFI or a dynamic SFI.

2. The first time domain resource is configured by the network equipment to the terminal equipment, and the mode that the network equipment determines the first time domain resource according to the time domain resource indication information is the same as the mode that the terminal equipment determines the first time domain resource according to the time domain resource indication information. For example, the network device may transmit a DL grant to the terminal device, the DL grant including a first field including first time domain resources. As another example, a network device sends a DL grant to a terminal device, the DL grant including a first field including an index value, the index value indicating a first time domain resource.

The second time domain resource is a time domain resource of initial repeated transmission, the time domain resource of initial repeated transmission is a continuous time domain resource, and the determining manner of the second time domain resource may include any one of the following:

1. the second time domain resource is determined by the terminal device according to the time domain resource of the first transmission in the repeated transmission, the repeated times of the repeated transmission and the TRP switching interval between any two adjacent repeated transmissions. For example, assuming that the time domain resource of the first transmission in the repeated transmission is the first symbol (i.e., symbol 0) and the second symbol (i.e., symbol 1) of the 10 th slot, the number of repetitions of the repeated transmission is 2, and the TRP switching interval between any two adjacent repeated transmissions is 2, the second time domain resource is the first symbol to the sixth symbol of the 10 th slot.

2. The second time domain resource is determined by the terminal device according to the starting time of the first transmission in the repeated transmission, the length of the time domain resource required by each repeated transmission and the TRP switching interval between any two adjacent repeated transmissions. For example, assuming that the starting time of the first transmission in the repeated transmission is the first symbol of the 10 th slot, the length of the time domain resource required for each repeated transmission is 3, the TRP switching interval between any two adjacent repeated transmissions is 2, the time domain resource of the first transmission in the repeated transmission is the first symbol to the third symbol of the 10 th slot, and if the number of repeated transmissions is 2, the second time domain resource is the first symbol to the eighth symbol of the 10 th slot.

Wherein each transmission/reception point (TRP) corresponds to a transmission configuration indication (Transmission Configuration Indicator, TCI) state (TCI state) or to an index value (index) of a higher layer configuration, e.g. one index is configured for each Control-resource set (coreset) by the higher layer, and different indexes correspond to different TRPs.

The determining manner of the time domain resource of the first transmission in the repeated transmission may include any one of the following:

1. a Downlink grant (DLgrant) may indicate a time domain resource of a first transmission in the repeated transmission, and the DLgrant may be sent by the network device to the terminal device. For example, DL grant indicates that the time domain resource of the first transmission in the repeated transmission is the first symbol (i.e., symbol 0) and the second symbol (i.e., symbol 1) of the 10 th slot.

2. The time domain resource of the first transmission in the repeated transmission may be determined according to the start time of the first transmission in the repeated transmission and the length of the time domain resource required for each repeated transmission. The starting time of the first transmission in the repeated transmission may be configured by the network device, that is, a time slot to which the time domain resource of the first transmission in the repeated transmission belongs, and a first symbol included in the time domain resource of the first transmission in the time slot. The length of the domain resources required for each retransmission may be network device configured, i.e. the number of symbols that can be occupied per retransmission. For example, the first symbol of the first transmission in the repeated transmission is the first symbol of the 10 th slot, and the length of the time domain resource required for each repeated transmission is 2, then the terminal device may determine that the time domain resource of the first transmission in the repeated transmission is the first symbol and the second symbol of the 10 th slot.

Wherein the number of repetitions of the repeated transmission may be network device configured. For example, the network device may send a DL grant to the terminal device, where the DL grant includes a first field, and the first field includes a number of repetitions of the repeated transmission, for example, the first field has a value of "2", and the terminal device may determine that the number of repetitions of the repeated transmission is 2, that is, the terminal device may perform 2 repeated transmissions on the data. As another example, the network device may send a DL grant to the terminal device, where the DL grant includes a first field, and the first field includes an index value, where the index value indicates a number of repetitions of the repeated transmission, for example, the index value is "010", and the terminal device may determine that the number of repetitions of the repeated transmission is 2, that is, the terminal device may perform 2 repeated transmissions on the data.

The target time domain resource is used for the repeated transmission, and the target time domain resource may include a fourth time domain resource but does not include a third time domain resource, that is, the terminal device may discard the repeated transmission of the data in the third time domain resource. The target time domain resource may be in one time slot, may span a time slot, or may be in multiple time slots. In a scenario where a slot or slots are spanned, the target slot resources may be on multiple consecutive slots, or on multiple non-consecutive slots, and embodiments of the application are not limited.

As shown in fig. 4, taking the example that the target time domain resources are in one slot, assuming that the symbols 3 to 5 and the symbols 9 to 11 are the first time domain resources, the second time domain resources are the symbols 1 to 6, then the third time domain resources are the symbols 3 to 5, the fourth time domain resources are the symbols 1, 2 and 6, and the target time domain resources determined by the terminal device may be the symbols 1, 2 and 6. Alternatively, the target time domain resource determined by the terminal device may be symbol 1, symbol 2, symbol 6 to symbol 8, and symbol 12.

202. The terminal device transmits data on the repeated transmission target time domain resource.

When the repeated transmission includes at least one transmission of the uplink transmission, the terminal device may transmit data on a target time domain resource of the repeated transmission. When the repeated transmission includes at least one transmission of the downlink transmission, the terminal device may receive data on the target time domain resource of the repeated transmission. The following embodiments will describe in detail a method of transmitting data on a target time domain resource of repeated transmission.

And the terminal equipment repeatedly transmits data on the target time domain resource after determining the target time domain resource. As shown in fig. 4, assuming that the target time domain resources are symbol 1, symbol 2, and symbol 6, the terminal device may receive or transmit data on symbol 1, symbol 2, and symbol 6. Assuming that the target time domain resources are symbol 1, symbol 2, symbol 6 through symbol 8, and symbol 12, the terminal device may receive or transmit data on symbol 1, symbol 2, symbol 6 through symbol 8, and symbol 12.

It can be seen that, in the embodiment of the present application, according to the first time domain resource and the second time domain resource in the repeated transmission, the target time domain resource of the repeated transmission is determined, where the first time domain resource is a time domain resource that cannot be occupied by the repeated transmission, the second time domain resource is a time domain resource of the initial repeated transmission, the second time domain resource includes a third time domain resource overlapping with the first time domain resource, and a fourth time domain resource other than the third time domain resource, and the target time domain resource includes the fourth time domain resource, and data is transmitted on the target time domain resource of the repeated transmission, so that the length of the continuous time domain resource required by the repeated transmission of the data is reduced, and thus the time delay generated by the repeated transmission of the data is reduced.

Referring to fig. 3, fig. 3 is a flowchart illustrating another method for determining time domain resources of data transmission according to an embodiment of the present application, where the method includes some or all of the following:

301. and the network equipment determines the target time domain resource of the repeated transmission according to the first time domain resource and the second time domain resource in the repeated transmission.

The first time domain resource is a time domain resource which is unoccupied by the repeated transmission, that is, the repeated transmission can only transmit data on the time domain resource except the first time domain resource. The first time domain resource may be determined by the network device according to the time domain resource indication information. Wherein the time domain resource indication information comprises first information and/or second information. The following embodiments describe a method for determining the first time domain resource in detail.

1. the second time domain resource is determined by the network device according to the time domain resource of the first transmission in the repeated transmission and the repeated times of the repeated transmission. For example, assuming that the time domain resource of the first transmission in the repeated transmission is the first symbol and the second symbol of the 10 th slot, and the number of repetitions of the repeated transmission is 2, the second time domain resource is the first symbol to the fourth symbol of the 10 th slot.

2. The second time domain resource is determined by the network device according to the starting time of the first transmission in the repeated transmission, the length of the time domain resource required by each repeated transmission and the TRP switching interval between any two adjacent repeated transmissions. For example, assuming that the starting time of the first transmission in the repeated transmission is the first symbol of the 10 th slot, the length of the time domain resource required for each repeated transmission is 3, the TRP switching interval between any two adjacent repeated transmissions is 2, the time domain resource of the first transmission in the repeated transmission is the first symbol to the third symbol of the 10 th slot, and if the number of repeated transmissions is 2, the second time domain resource is the first symbol to the eighth symbol of the 10 th slot.

The time domain resource of the first transmission in the repeated transmission can be determined according to the starting time of the first transmission in the repeated transmission and the length of the time domain resource required by each repeated transmission. For example, the first symbol of the first transmission in the repeated transmission is the first symbol of the 10 th slot, and the length of the time domain resource required for each repeated transmission is 2, then the terminal device may determine that the time domain resource of the first transmission in the repeated transmission is the first symbol and the second symbol of the 10 th slot.

Wherein the target time domain resource is used for the repeated transmission, and the target time domain resource may include a fourth time domain resource but does not include a third time domain resource, that is, the network device may discard the repeated transmission of the data in the third time domain resource. The target time domain resource may be in one time slot, may span a time slot, or may be in multiple time slots. In a scenario where a slot or slots are spanned, the target slot resources may be on multiple consecutive slots, or on multiple non-consecutive slots, and embodiments of the application are not limited.

As shown in fig. 4, taking the example that the target time domain resources are in one slot, assuming that the symbols 3 to 5 and the symbols 9 to 11 are the first time domain resources, the second time domain resources are the symbols 1 to 6, then the third time domain resources are the symbols 3 to 5, the fourth time domain resources are the symbols 1, 2 and 6, and the target time domain resources determined by the network device may be the symbols 1, 2 and 6. Alternatively, the target time domain resources determined by the network device may be symbol 1, symbol 2, symbol 6 to symbol 8, and symbol 12.

302. The network device transmits data on the repeated transmission of the target time domain resource.

When the repeated transmission includes at least one transmission of the uplink transmission, the network device may receive data on the target time domain resource of the repeated transmission. When the repeated transmission includes at least one transmission of the downlink transmission, the network device may send data on the target time domain resource of the repeated transmission. The following embodiments will describe in detail a method of transmitting data on a target time domain resource of repeated transmission.

And the network equipment repeatedly transmits data on the target time domain resource after determining the target time domain resource. As shown in fig. 4, assuming that the target time domain resources are symbol 1, symbol 2, and symbol 6, the network device may receive or transmit data on symbol 1, symbol 2, and symbol 6. Assuming that the target time domain resources are symbol 1, symbol 2, symbol 6 through symbol 8, and symbol 12, the network device may receive or transmit data on symbol 1, symbol 2, symbol 6 through symbol 8, and symbol 12.

Based on the method for determining the time domain resource of the data transmission shown in fig. 2 or fig. 3, when the time domain resource indication information is the first information, determining the unoccupied time domain resource according to the first information, and specifically describing the determined unoccupied time domain resource as the first time domain resource scheme.

Optionally, the first information includes a first time domain resource. The network device configures a plurality of symbols in a time slot as unoccupied time domain resources, and the network device may generate first information, where the first information includes a time slot identifier of the time slot and a symbol identifier of the unoccupied plurality of symbols. As shown in fig. 4, the first information includes symbol 3 to symbol 5 and symbol 9 to symbol 11, and then it may be determined that the first time domain resource includes symbol 3 to symbol 5 and symbol 9 to symbol 11.

Optionally, the first information is used to indicate a first time domain resource. For example, the first information may be signal configuration information, the signal configuration information being signal configuration information about at least one of: a physical random access channel (Physical Random Access Channel, PRACH), a channel sounding reference signal (Sounding Reference Signal, SRS), a synchronization signal block (Synchronization Signal Block, SSB), and a positioning reference signal (Positioning reference signal, PRS). Since the priority of the signal with respect to the data repeatedly transmitted is higher, after receiving the signal configuration information, the terminal device may determine the fifth time domain resource occupied by the signal indicated by the signal configuration information as the first time domain resource. For example, assuming that the signal indicated by the signal configuration information is SSB, the time domain resource occupied by SSB is symbol 2, and the PUSCH for repeated transmission also occupies symbol 2, then symbol 2 is only available for SSB transmission, and is not available for PUSCH transmission, that is, symbol 2 is the first time domain resource.

The first information may be transmitted through physical layer signaling or higher layer signaling.

Further, the second time domain resource includes the fifth time domain resource, and the frequency domain resource corresponding to the fifth time domain resource in the initial repeated transmission is the same as the frequency domain resource occupied by the signal indicated by the signal configuration information. For example, assuming that the signal indicated by the signal configuration information is SSB, the time domain resource occupied by SSB is symbol 2, the PUSCH used for repeated transmission also occupies symbol 2, and the frequency domain resource used by SSB is the same as the frequency domain resource used by PUSCH, then symbol 2 is only available for SSB transmission, and is not available for PUSCH transmission, that is, symbol 2 is the first time domain resource. Assuming that the signal indicated by the signal configuration information is SSB, the time domain resource occupied by SSB is symbol 2, the PUSCH used for repeated transmission also occupies symbol 2, and the frequency domain resource used by SSB and the frequency domain resource used by PUSCH are different, then symbol 2 can be used for transmitting SSB and PUSCH, that is, symbol 2 is not the first time domain resource.

As shown in fig. 4, assuming that the first information is signal configuration information and the signal configuration information includes SSB configuration information indicating that the time domain resources occupied by SSB are symbol 3 to symbol 5 and symbol 9 to symbol 11 in fig. 4, then symbol 3 to symbol 5 and symbol 9 to symbol 11 may be determined as the first time domain resources.

Based on the method for determining the time domain resource of the data transmission shown in fig. 2 or fig. 3, when the time domain resource indication information is the second information, determining the unoccupied time domain resource according to the second information, and specifically describing the determined unoccupied time domain resource as the first time domain resource scheme.

The second information is an SFI, where the SFI is used to indicate uplink resources, downlink resources, and flexible resources in the timeslot. The SFI may be semi-statically configured through higher layer signaling or dynamically configured through PDCCH.

If the SFI is configured in a semi-static mode and the repeated transmission is repeated for multiple transmissions of the PDSCH or the PDCCH, the first time domain resource comprises uplink resources configured in the semi-static mode, namely downlink resources and flexible resources are occupied time domain resources; or the first time domain resource comprises an uplink resource and a flexible resource which are semi-statically configured, and the nth symbol and the part after the nth symbol, namely the part before the nth symbol of the downlink resource and the flexible resource is an occupiable time domain resource; alternatively, the first time domain resource includes a semi-statically configured uplink resource and all flexible resources, i.e., the downlink resource is an occupiable time domain resource. As shown in fig. 5, the SFI is configured semi-statically, and the repeated transmission is multiple transmissions of the PUSCH, then the first time domain resource is one of cases 1 to 3 shown in fig. 5.

If the SFI is dynamically configured through the PDCCH and the repeated transmission is multiple transmissions of the PDSCH or PDCCH, the terminal device may determine the first time domain resource according to the dynamic SFI. Specifically, the first time domain resource includes uplink resources configured by dynamic SFI, namely downlink resources and flexible resources are occupied time domain resources; or the first time domain resource comprises an uplink resource and a flexible resource which are configured by the dynamic SFI, and the nth symbol and the part after the nth symbol, namely the part before the nth symbol of the downlink resource and the flexible resource is an occupiable time domain resource; or the first time domain resource comprises uplink resources configured by dynamic SFI and all flexible resources, namely the downlink resources are occupied time domain resources. As shown in fig. 6, if the SFI is dynamically configured through the PDCCH and the repeated transmission is repeated as multiple transmissions of the PUSCH, the first time domain resource is one of cases 1 to 3 shown in fig. 6.

If the SFI is configured in a semi-static mode and the repeated transmission is repeated for multiple transmissions of the PUSCH or the PUCCH, the first time domain resource comprises downlink resources configured in the semi-static mode, namely uplink resources and flexible resources are occupied time domain resources; or the first time domain resource comprises a part before an nth symbol of the semi-statically configured downlink resource and flexible resource, namely the nth symbol of the uplink resource and flexible resource and the part after the nth symbol are occupied time domain resources; alternatively, the first time domain resource includes a semi-statically configured downlink resource and all flexible resources, i.e., the uplink resource is an occupiable time domain resource. As shown in fig. 7, the SFI is configured semi-statically, and the repeated transmission is multiple transmissions of the PDSCH, the first time domain resource is one of cases 1 to 3 shown in fig. 7.

If the SFI is dynamically configured through the PDCCH and the repeated transmission is repeated for multiple transmissions of the PUSCH or PUCCH, the terminal device may determine the first time domain resource according to the dynamic SFI. Specifically, the first time domain resource includes downlink resources configured by dynamic SFI, namely uplink resources and flexible resources are occupied time domain resources; or the first resource comprises a part before an nth symbol of the downlink resource and the flexible resource configured by the dynamic SFI, namely the nth symbol and a part after the nth symbol of the uplink resource and the flexible resource are occupied time domain resources; or the first time domain resource comprises downlink resources configured by dynamic SFI and all flexible resources, namely the uplink resources are occupied time domain resources. As shown in fig. 8, if the SFI is dynamically configured by the PDCCH and the repeated transmission is repeated for multiple transmissions of the PDSCH, the first time domain resource is one of cases 1 to 3 shown in fig. 8.

Based on the method for determining the time domain resource of the data transmission shown in fig. 2 or fig. 3, the embodiment of the present invention specifically describes determining the first time domain resource scheme when the time domain resource indication information includes the first information and the second information.

In a specific implementation, the unoccupied time domain resource may be determined according to the first information, and the determined unoccupied time domain resource is used as the fifth time domain resource. And determining unoccupied time domain resources according to the second information, and taking the determined unoccupied time domain resources as sixth time domain resources, wherein the first time domain resources are a set of fifth time domain resources and sixth time domain resources.

The method for determining the unoccupied time domain resource according to the first information may be referred to the description of the method for determining the unoccupied time domain resource according to the first information in the above embodiment, which is not described herein. In addition, the manner in which the terminal device determines the unoccupied time domain resource according to the second information may be referred to the description in the above embodiment regarding the manner in which the unoccupied time domain resource is determined according to the second information, which is not described herein.

As shown in fig. 9, symbol 2 is determined as a fifth time domain resource according to the first information, symbol 7 is determined as a sixth time domain resource according to the second information. Since the first time domain resource is a combined set of the fifth time domain resource and the sixth time domain resource, the final terminal device may determine that symbol 3, symbol 7, and symbol 8 are the first time domain resources.

Similarly, when the time domain resource indication information includes the first information and the second information, the first time domain resource is a fifth time domain resource, and the sixth time domain resource is a set of TRP switching intervals between any two adjacent repeated transmissions. As shown in fig. 10, symbol 8 is determined as a fifth time domain resource according to the first information, symbol 7 is determined as a sixth time domain resource according to the second information, and the TRP switching interval is symbol 3 and symbol 6. Since the first time domain resource is the fifth time domain resource, the symbol 3, and the symbols 6 to 8 are the first time domain resource can be finally determined by the combined set of the TRP switching interval between the sixth time domain resource and any two adjacent repeated transmissions.

Based on the method for determining the time domain resource of data transmission shown in fig. 2 or fig. 3, the embodiment of the present invention specifically describes a scheme for transmitting data on the target time domain resource of repeated transmission.

The network device may configure the terminal device with: the time domain resource of each of the repeated transmissions is a continuous time domain resource.

In an embodiment, the length of the time domain resource of each repetition transmission is the same, and the length of the continuous time domain resource in the target time domain resource is greater than or equal to the length of the time domain resource of each repetition transmission.

For example, as shown in fig. 11, assuming that symbol 0, symbol 3, symbol 4, symbol 9, and symbol 13 constitute a first time domain resource, if the initial symbol of the first transmission in the repeated transmission is symbol 0, the network device configures the length of the time domain resource required for each repeated transmission to be 3 and the number of repetitions of the repeated transmission to be 2 to the terminal device. From fig. 11, it can be seen that the occupied time domain resources are symbol 1, symbol 2, symbols 5 to symbol 8, and symbols 10 to symbol 12. Since symbol 1 and symbol 2 are occupiable contiguous time domain resources having a length of 2, the length of the time domain resources is less than the length of the time domain resources required for each repetition of the transmission, i.e., the first transmission in the repetition exceeds the time domain length limit boundary, the time domain resources are not used for the repetition. In addition, the symbols 5 to 8 are continuous time domain resources which can occupy, the length of the time domain resources is 4, and the length of the time domain resources is greater than the length of the time domain resources required by each repeated transmission, and then the symbols 5 to 7 in the time domain resources are determined as a part of the target time domain resources for the first repeated transmission. The remaining symbols 8 are occupiable time domain resources, the length of which is 1, which is smaller than the length of the time domain resources required for each repetition transmission, and which are not used for the repetition transmission. In addition, the symbols 10 to 12 are consecutive time domain resources which can occupy, the length of the time domain resources is 3, and the length of the time domain resources is equal to the length of the time domain resources required by each repeated transmission, and then the symbols 10 to 12 in the time domain resources are determined as a part of the target time domain resources for the second repeated transmission. Finally, symbol 5 to symbol 7 and symbol 10 to symbol 12 are determined as target time domain resources, data with the length of 3 and the repetition number of 2, which need to be repeatedly transmitted, are transmitted on the target time domain resources.

In an embodiment, if the length of the time domain resource of the nth retransmission in the retransmission is smaller than the length of the time domain resource required by each retransmission, the data are transmitted on the time domain resources of the first to nth-1 retransmissions, respectively, where n is a positive integer, and n is greater than 0 and less than or equal to the number of repetitions. That is, the length of the time domain resource of the nth retransmission in the retransmission is smaller than the length of the time domain resource required by each retransmission, i.e. the time domain resource of the nth retransmission exceeds the time domain length limit boundary, the data of the nth and the following needs to be retransmitted are not transmitted.

As shown in fig. 12, a symbol with x in the figure indicates a first time domain resource, if the initial symbol is symbol 0, the time domain length a required for one repetition transmission is 4, the number of repetition transmissions is 3, and the limit boundary is symbol 13. Then, according to the above method, the target time domain resource of the first repeated transmission is determined to be symbol 5 to symbol 8. At this time, the occupiable time domain resources that did not meet the condition before the symbol 13 may be determined as target time domain resources for the second retransmission. The second and third repeated transmissions of data are no longer performed. Namely, the data to be transmitted is repeatedly transmitted only once from symbol 5 to symbol 8. Therefore, the method of the embodiment can realize repeated transmission of partial data needing repeated transmission without increasing time delay, and simultaneously ensure the integrity of repeated transmission each time.

Optionally, the time domain resource is extended after the boundary to continue transmitting the nth and data to be transmitted after the nth. As shown in fig. 13, the symbol with x in the figure represents the first time domain resource, if the initial symbol is symbol 0 in the slot 1, the time domain length a required for one repetition transmission is 4, the number of repetition transmissions is 3, and the limit boundary is symbol 13 in the slot 1. Then, according to the above method, the target time domain resource of the first retransmission is determined to be the symbol 5 to the symbol 8 in the time slot 1. At this time, the occupiable time domain resources that do not meet the condition before the symbol 13 of the slot 1 may be determined as target time domain resources of the second retransmission. And adding an extended time slot 2 after the time slot 1, and determining symbols 0 to 7 of the subsequent time slot 2 as target time domain resources of the second repeated transmission and the third repeated transmission. The transmission length 4 of the symbols 5-8 of the time slot 1 and the symbols 0-7 of the time slot 2 is determined as a target time domain resource, and the data needing to be repeatedly transmitted are transmitted on the target time domain resource. Therefore, the method of the embodiment can reduce the cost of continuous time domain resources under the condition of ensuring the integrity of repeated transmission data, thereby reducing time delay and ensuring the integrity of repeated transmission each time.

Based on the method for determining the time domain resource of data transmission shown in fig. 2 or fig. 3, another scheme of transmitting data on the target time domain resource of repeated transmission by the terminal device is specifically described in the embodiment of the present invention.

The network device configures to the terminal device: the time domain resource of at least one of the repeated transmissions is a non-contiguous time domain resource. In an embodiment, when the length c1 of the currently occupiable time domain resource is smaller than the time domain length a required by one-time repeated transmission, the terminal device splits the one-time repeated transmission data into two parts with the length c1 and the length a-c1, and transmits the part with the length c1 on the occupiable time domain resource with the length c1 to repeat the transmission data, and transmits the part with the length a-c1 in the subsequent occupiable time domain resource to repeat the transmission data. If the length c2 of the subsequent occupiable time domain resource is smaller than a-c1, dividing the repeated transmission data with the length a-c1 into two parts of c2 and a-c1-c2 according to the method, transmitting the repeated transmission data with the length c2 on the occupiable time domain resource with the length c2, and transmitting the repeated transmission data with the length a-c1-c2 in the subsequent occupiable time domain resource.

As shown in fig. 14, a symbol with x in the figure indicates a first time domain resource, and if the initial symbol is symbol 1, the time domain length a required for one repetition transmission is 4, and the number of repetition transmissions is 2. It can be seen from fig. 13 that the occupied time domain resources are symbols 1 to 6 and symbols 8 to 12, i.e. c1 and c2 are both 6. Thus, the terminal device performs the first repetition transmission on symbols 1 to 4. At this time, the terminal device may perform a second repeat transmission at symbol 5, symbol 6, symbol 8, and symbol 9, where the terminal device repeats transmission of a first portion of the data at symbol 5 and symbol 6 and a second portion of the data at symbol 8 and symbol 9.

The first segment may occupy the remaining symbols 5 and 6 of the time domain resource, with a length of 2 less than a. The terminal equipment splits the data of the second repeated transmission into two parts with the length of 2, and transmits the repeated transmission data with the length of 2 of the first part in the symbol 5 and the symbol 6. In the subsequent occupiable resources, namely symbol 8 and symbol 9, the second part length 2 of the repeated transmission data is transmitted.

As shown in fig. 15, a symbol with x in the figure indicates a first time domain resource, and if the initial symbol is symbol 0, the time domain length a required for one repetition transmission is 4, and the number of repetition transmissions is 2. It can be seen from fig. 14 that the occupied time domain resources are symbol 1, symbol 2, symbol 4 and symbols 6 to 12, i.e. c1 is 2, c2 is 1 and c3 is 7. Since c1 is smaller than a, the terminal device splits the data of the first retransmission into two parts with length of 2, and transmits the data of the first part with length of 2 in symbol 1 and symbol 2. Since c2 is smaller than the second part of repeated transmission data length 2, the terminal device splits the second part of repeated transmission data into two parts with the length of 1, and transmits the repeated transmission data with the length of 1 in the first part of symbol 4. In the subsequent occupiable resource, symbol 6 transmits the repeated transmission data with the second part length of 1. Namely, the terminal equipment transmits data of first repeated transmission in the symbols 1, 2, 4 and 6, and transmits data of second repeated transmission in the symbols 7 to 10.

In an embodiment, when the nth retransmission exceeds the time-domain length limit boundary, the terminal device only transmits the first portion of the nth retransmission data, and does not transmit the remaining second portion of the nth retransmission data and the data to be transmitted after the nth retransmission data. As shown in fig. 16, a symbol with x in the figure indicates a first time domain resource, if the initial symbol is symbol 3, the time domain length a required for one repetition transmission is 4, the number of repetition transmissions is 3, and the limit boundary is symbol 13. The terminal equipment determines that the target time domain resource of the first repeated transmission is symbol 5-symbol 8 according to the method. Since the length of the symbol 11 and the symbol 12 is 2 and less than a, the terminal device splits the data of the second repeated transmission into two parts with the length of 2, and the repeated transmission data with the length of 2 is transmitted in the first part of the symbol 11 and the symbol 12. At this point, no time domain resources may be occupied before symbol 13. The terminal device does not transmit the second part of data of the second retransmission and the data of the third retransmission. Namely, the terminal equipment only carries out one repeated transmission on the data needing to be transmitted in the symbols 5 to 8, and carries out the transmission on the data with the first part length of 2 in the second repeated transmission in the symbols 11 and 12. Therefore, the method of the embodiment can maximally utilize the occupied time domain resources existing in the time slot, and realize repeated transmission of partial data needing repeated transmission under the condition of not increasing time delay.

Optionally, the terminal device extends the time domain resource after the boundary to continue transmitting the second portion of the repeated transmission data remaining for the nth time and the data to be transmitted after the nth time. As shown in fig. 17, the symbol with x in the figure represents the first time domain resource, if the initial symbol is symbol 3 in the slot 1, the time domain length a required for one repetition transmission is 4, the number of repetition transmissions is 3, and the limit boundary is symbol 13 in the slot 1. The terminal equipment determines that the target time domain resource of the first repeated transmission is the symbol 5-symbol 8 in the time slot 1 according to the method. Since the length of the symbol 11 and the symbol 12 is 2 and less than a, the terminal device splits the data of the second repeated transmission into two parts with the length of 2, and the repeated transmission data with the length of 2 is transmitted in the first part of the symbol 11 and the symbol 12. At this time, no time domain resources may be occupied before symbol 13 of slot 1. The terminal equipment adds an extended time slot 2 after the time slot 1, and transmits the second part of data and the data of the third repeated transmission of the subsequent second repeated transmission in the symbols 0-5 of the time slot 2. Namely, the terminal equipment transmits the data with the length of 4 and the repetition number of 3 to be repeatedly transmitted through the symbols 5 to 8, the symbols 11 and 12 of the time slot 1 and the symbols 0 to 5 of the time slot 2. Therefore, the method of the embodiment can maximize the utilization of the occupiable time domain resources existing in the time slot under the condition of ensuring the integrity of the repeated transmission data, and reduce the cost of continuous time domain resources, thereby reducing the time delay.

In an embodiment, when the length c1 of the currently available time domain resource is smaller than the time domain length a required by the nth retransmission, the terminal device splits the nth retransmission data into two parts with a length c1 and a length a-c1, and transmits the part with a length c1 on the available time domain resource with a length c1 to repeat the transmission data, and does not transmit the remaining part with a length a-c1 of the nth retransmission. And carrying out n+1st repeated transmission in the subsequent occupied time domain resource.

As shown in fig. 18, the symbol with x in the figure represents the first time domain resource, if the initial symbol is symbol 0, the time domain length a required for one repetition transmission is 4, and the number of repetition transmissions is 3, it can be seen from fig. 14 that the occupied time domain resource is symbol 1, symbol 2, symbol 4, and symbol 6 to symbol 12, that is, c1 is 2, c2 is 1, and c3 is 7. Since c1 is smaller than a, the terminal device splits the data of the first retransmission into two parts with the length of 2, and transmits the data of the first part with the length of 2 in the symbol 1 and the symbol 2, and does not transmit the remaining data of the second part with the length of 2. Since c2 is smaller than a, the terminal device splits the data of the second repeated transmission into a first part with the length of 1 and a second part with the length of 3, and transmits the repeated transmission data with the length of 1 in the first part of the symbol 4, and does not transmit the repeated transmission data with the length of 3 in the remaining second part. Since c3 is greater than a, the terminal device performs a third repeat transmission on symbols 6 to 9. Namely, the terminal equipment transmits the repeated transmission data with the first part length of 2 of the first repeated transmission in the symbol 1, the repeated transmission data with the first part length of 1 of the second repeated transmission in the symbol 4, and all the data of the third repeated transmission in the symbols 6 to 9.

In an embodiment, when the nth retransmission exceeds the time-domain length limit boundary, the terminal device only transmits the first portion of the nth retransmission data, and does not transmit the remaining second portion of the nth retransmission data and the data to be transmitted after the nth retransmission data. As shown in fig. 17, a symbol with x in the figure represents a first time domain resource, if the initial symbol is symbol 4, the time domain length a required for one repetition transmission is 4, the number of repetition transmissions is 3, and the limit boundary is symbol 13. Because the length of the symbols 6-8 is less than a, the terminal equipment splits the data of the first repeated transmission into a first part with the length of 3 and a second part with the length of 1, and the repeated transmission data with the length of 3 in the first part is transmitted in the symbols 6-8, and the repeated transmission data with the length of 1 in the remaining second part is not transmitted. Since the length of the symbol 11 and the symbol 12 is less than a, the terminal device splits the data of the second repeated transmission into two parts with the length of 2, and the repeated transmission data with the length of 2 in the first part is transmitted in the symbol 11 and the symbol 12, and the rest repeated transmission data with the length of 2 in the second part is not transmitted. At this time, no time domain resource is available for symbols 4 to 13. The terminal device does not transmit the data of the third repeated transmission. Namely, the terminal equipment only transmits the repeated transmission data with the first part length of 3 of the first repeated transmission in the symbols 6 to 8, and transmits the repeated transmission data with the first part length of 2 of the second repeated transmission in the symbols 11 and 12. Therefore, the method of the embodiment can maximally utilize the occupied time domain resources existing in the time slot, and realize repeated transmission of partial data needing repeated transmission under the condition of not increasing time delay.

Optionally, the terminal device extends the time domain resource after the boundary to continue transmitting the second portion of the repeated transmission data remaining for the nth time and the data to be transmitted after the nth time. As shown in fig. 19, the symbol with x in the figure represents the first time domain resource, if the initial symbol is symbol 4 in the slot 1, the time domain length a required for one repetition transmission is 4, the number of repetition transmissions is 3, and the limit boundary is symbol 13 in the slot 1. The terminal device transmits the first part length 3 of the first repetition transmission data in the symbols 6 to 8 and the second part length 2 of the second repetition transmission data in the symbols 11 and 12 according to the above method. At this time, no time domain resource is available for symbols 4 to 13 in slot 1. The terminal equipment adds an extended time slot 2 after the time slot 1, and transmits the data of the third repeated transmission from the symbol 0 to the symbol 3 of the time slot 2. Namely, the terminal equipment transmits the data with the length of 4 and the repetition number of 3 to be repeatedly transmitted through the symbols 6 to 8, the symbol 11, the symbol 12 of the time slot 1 and the symbols 0 to 3 of the time slot 2. Therefore, the method of the embodiment can maximize the utilization of the occupied time domain resources existing in the time slot and reduce the cost of continuous time domain resources, thereby reducing the time delay.

In an embodiment, the data length of one repetition transmission is m, and the number of repetition transmissions is n, and then the data needing to be repeated is transmitted on the time domain resource with the continuous length of m×n from the designated initial symbol. If there is a first time domain resource in the continuous time domain resource with length of m×n, the terminal device does not transmit the data of the overlapping portion of the symbol and the first time domain resource. As shown in fig. 20, a symbol with x in the figure indicates a first time domain resource, and if the initial symbol is symbol 3, the time domain length a required for one repetition transmission is 2, and the number of repetition transmissions is 4, the data of the repetition transmission is transmitted in symbols 3 to 10. Since symbol 5, symbol 6, symbol 8 and symbol 9 are first time domain resources, the terminal device does not transmit all data of the second repetition transmission corresponding to the first time domain resource symbols, the second part of data of the third repetition transmission and the first part of data of the fourth repetition transmission.

In an embodiment, when the nth retransmission exceeds the time-domain length limit boundary, the terminal device only transmits the first portion of the nth retransmission data, and does not transmit the remaining second portion of the nth retransmission data and the data to be transmitted after the nth retransmission data. As shown in fig. 21, a symbol with x in the figure indicates a first time domain resource, if the initial symbol is symbol 9, the time domain length a required for one repetition transmission is 2, the number of repetition transmissions is 4, and the limit boundary is symbol 13, the data of the repetition transmission is transmitted in symbols 9 to 13. Since the symbols 9 and 12 are the first time domain resource, the terminal device does not transmit the first part of data of the first retransmission and the second part of data of the second retransmission corresponding to the symbols of the first time domain resource. Since the second portion and the fourth repetition of the third repetition transmission exceed the boundary symbol 13, the terminal device does not transmit the data of the second portion and the fourth repetition transmission of the third repetition transmission. I.e. the terminal device transmits the second part of the data of the first repetition transmission in symbol 10, the first part of the data of the second repetition transmission in symbol 11 and the first part of the data of the third repetition transmission in symbol 13. Therefore, the method of the embodiment can maximally utilize the occupied time domain resources existing in the time slot, and realize repeated transmission of partial data needing repeated transmission under the condition of not increasing time delay.

Optionally, the terminal device extends the time domain resource after the boundary to continue transmitting the second portion of the repeated transmission data remaining for the nth time and the data to be transmitted after the nth time. As shown in fig. 22, a symbol with x in the figure indicates a first time domain resource, if the initial symbol is symbol 9, the time domain length a required for one repetition transmission is 2, the number of repetition transmissions is 4, and the limit boundary is symbol 13 in slot 1, the repeated transmission data is transmitted in symbols 9 to 13 in slot 1. Since the symbols 9 and 12 are the first time domain resource, the terminal device does not transmit the first part of data of the first retransmission and the second part of data of the second retransmission corresponding to the symbols of the first time domain resource. Since the second portion of the third retransmission and the fourth retransmission exceed the boundary symbol 13, the terminal device adds the extended slot 2 after the slot 1, and transmits the data of the second portion of the third retransmission and the fourth retransmission in the symbols 0 to 2 of the slot 2. Namely, the terminal device transmits the second part of data of the first repetition transmission in the symbol 10 of the time slot 1, the first part of data of the second repetition transmission in the symbol 11 of the time slot 1, the first part of data of the third repetition transmission in the symbol 13 of the time slot 1, and the second part of data of the third repetition transmission and the fourth repetition transmission in the symbols 0 to 2 of the time slot 2. Therefore, the method of the embodiment can maximize the utilization of the occupied time domain resources existing in the time slot and reduce the cost of continuous time domain resources, thereby reducing the time delay.

The solution according to the invention is described in its entirety by means of two complete embodiments. As shown in fig. 23, the repeated transmission is performed continuously every time, and if the nth repeated transmission exceeds the time-domain length limit boundary, the time-domain resource is extended after the boundary to continue transmitting the data of the nth repeated transmission. Assuming that the initial symbol is configured to the terminal equipment by the network equipment, the length of time domain resources required by each repeated transmission is 2, the gap is 1, the repeated number of repeated transmission is 3, the limit boundary is symbol 13 in time slot 1, the time domain resource indication information comprises first information, the first information is signal configuration information, and the signal configuration information comprises SSB. The SSB configuration information indicates that the time domain resources occupied by the SSB are symbol 3 to symbol 5 and symbol 9 to symbol 11 in the slot 1, and then the terminal device may determine the symbol 3 to symbol 5 and the symbol 9 to symbol 11 in the slot 1 as the first time domain resources. Thus, after the start symbol 4 in the slot 1, the occupiable time domain resources are symbols 6 to 8, 12 and 13 in the slot 1. Since symbols 6 to 8 in the time slot 1 are continuous time domain resources which can occupy, the length of the time domain resources is 3, and the length of the time domain resources is greater than the length of the time domain resources required by each repeated transmission, then symbols 5 to 7 in the time domain resources are determined as a part of the target time domain resources for the first repeated transmission, and symbol 8 is gap. Since the symbols 12 and 13 in the slot 1 are consecutive time domain resources that can occupy, the length of the time domain resource is 2, and the length of the time domain resource is equal to the length of the time domain resource required for each repeated transmission, the symbols 12 and 13 in the time domain resource are determined as a part of the target time domain resource for performing the second repeated transmission. After the start symbol in slot 1, symbol 13 is not preceded by a contiguous time domain resource having a length greater than or equal to the length of the time domain resource required for each repeated transmission. Thus, the terminal device joins the extended slot 2 after the slot 1, where symbols 0 to 13 in the slot 2 are consecutive occupiable time domain resources, where symbol 0 in the slot 2 is a gap, and where symbol 1 and symbol 2 in the slot 2 are determined as part of the target time domain resources for the third retransmission.

As shown in fig. 24, the repeated transmission mode is that the time domain resource of at least one repeated transmission in the repeated transmission is a discontinuous time domain resource, and if the nth repeated transmission exceeds the time domain length limit boundary, the terminal device only transmits the first portion of the nth repeated transmission data, and does not transmit the remaining second portion of the nth repeated transmission data and the data to be transmitted after the nth repeated transmission data. Assuming that the initial symbol is configured to the terminal equipment by the network equipment to be 2, the length of the time domain resource required by each repeated transmission is 3, the gap is 1, the repeated number of repeated transmission is 3, the limit boundary is symbol 13 in the time slot 1, and the time domain resource indication information comprises first information and second information. The fifth time domain resource indicated by the first information is symbol 1, the sixth time domain resource indicated by the second information is symbol 7 and symbol 8, and the TRP switching interval between any two adjacent repeated transmissions is symbol 7 and symbol 13. Thus, the first time domain resources are symbol 1, symbol 7, symbol 8 and symbol 13. From this, starting from the start symbol, the time domain resources can be occupied by symbols 2 to 6 and symbols 9 to 12. Since symbols 2 to 6 are occupiable continuous time domain resources, the length of the time domain resources is 5, and the length of the time domain resources is greater than the length of the time domain resources required by each repeated transmission, then symbols 2 to 4 in the time domain resources are determined as a part of the target time domain resources for the first repeated transmission, and symbol 5 is gap. The remaining symbol 6 is an occupiable time domain resource, the length of the time domain resource is 1, and the length of the time domain resource is smaller than the length of the time domain resource required by each repeated transmission, so that the terminal equipment divides the data of the second repeated transmission into two parts with the length of 1 and the length of 2, and the symbol 6 transmits the first part with the length of 1 in the second repeated transmission. Since symbols 9-12 are occupiable contiguous time domain resources having a length of 4 and a length greater than the length of the time domain resources required for the second portion of the second repeat transmission, then symbols 9 and 10 of the time domain resources are determined to be part of the target time domain resources for transmitting the second portion of length 2 of the second repeat transmission and symbol 11 is gap. The remaining symbols 12 are occupiable time domain resources, the length of the time domain resources is 1, and the length of the time domain resources is smaller than the length of the time domain resources required by each repeated transmission, so that the terminal equipment divides the data of the third repeated transmission into two parts with the length of 1 and the length of 2, and the first part with the length of 1 in the third repeated transmission is transmitted by the symbols 12. Since no occupiable time domain resource exists among the start symbol 2 to the boundary symbol 13, the terminal device does not transmit the second portion of the third repetition transmission length 2.

It should be noted that any of the above retransmission methods and any of the above methods for determining the first time domain resource may be combined with each other, and the combination method is not limited to the two methods illustrated in fig. 23 and 24.

The scheme of the embodiment of the application is mainly introduced from the interaction angle among the network elements. It will be appreciated that the terminal device or network device, in order to implement the above-described functions, includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The embodiment of the application can divide the functional units of the terminal equipment or the network equipment according to the method example, for example, each functional unit can be divided corresponding to each function, and two or more functions can be integrated in one processing unit. The integrated units described above may be implemented either in hardware or in software program modules. It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice.

In case of integrated units, fig. 25 shows a block diagram of one possible functional unit composition of the communication device involved in the above embodiment, which may be operated in a terminal device or a network device, the communication device comprising:

a processing unit 501, configured to determine a target time domain resource of repeated transmission according to a first time domain resource and a second time domain resource in repeated transmission, where the first time domain resource is a time domain resource that cannot be occupied by the repeated transmission, the second time domain resource is a time domain resource of initial repeated transmission, the second time domain resource includes a third time domain resource overlapping with the first time domain resource, and a fourth time domain resource other than the third time domain resource, and the target time domain resource includes the fourth time domain resource;

a communication unit 502, configured to transmit data on the target time domain resource of the repeated transmission.

Optionally, the second time domain resource is determined according to the time domain resource of the first transmission in the repeated transmission, the number of repetitions of the repeated transmission, and a TRP switching interval between any two adjacent repeated transmissions; or the second time domain resource is determined according to the starting time of the first transmission in the repeated transmission, the length of the time domain resource required by each repeated transmission and the switching interval between any two adjacent repeated transmissions, and each TRP corresponds to a TCI state or corresponds to an index value configured by a higher layer.

Optionally, the first time domain resource is determined according to time domain resource indication information, where the time domain resource indication information includes first information and/or second information, the first information includes unavailable time domain resource information, and the second information includes slot format information SFI.

Optionally, the time domain resource indication information includes first information, and the first time domain resource is a time domain resource indicated by the first information.

Optionally, the time domain resource indication information includes first information, where the first information includes signal configuration information, and the first time domain resource is a fifth time domain resource occupied by a signal indicated by the signal configuration information.

Optionally, the second time domain resource includes the fifth time domain resource, and a frequency domain resource corresponding to the fifth time domain resource in the initial repeated transmission is the same as a frequency domain resource occupied by the signal indicated by the signal configuration information.

Optionally, the signal indicated by the signal configuration information includes at least one of: PRACH, SRS, SSB and PRS.

Optionally, the time domain resource indication information includes second information, where the second information includes uplink resources, downlink resources and flexible resources;

Optionally, the time domain resource indication information is dynamically configured through a PDCCH, or is semi-statically configured through a higher layer signaling, or is preconfigured.

Optionally, the first information is transmitted through physical layer signaling or higher layer signaling.

Optionally, the time domain resource of each of the repeated transmissions is a continuous time domain resource.

Optionally, the length of the time domain resource of each repetition transmission is the same, and the length of the continuous time domain resource in the target time domain resource is greater than or equal to the length of the time domain resource of each repetition transmission.

Optionally, the length of the time domain resource of each repeated transmission is different, the initial resource in the target time domain resource is determined according to a rule of continuous resource mapping, and the length of the target time domain resource is smaller than the product of the length of the time domain resource required by each transmission and the repetition number;

The communication unit 502 transmits data on the repeated transmission target time domain resource, including:

Optionally, the time domain resource of at least one repetition transmission in the repetition transmission is a discontinuous time domain resource, the length of the time domain resource of each repetition transmission is the same, and the initial resource in the target time domain resource is determined according to a rule of continuous resource mapping;

Optionally, the length of the time domain resource of the nth retransmission in the retransmission is smaller than the length of the time domain resource required by each retransmission;

Optionally, the communication unit 502 transmits data on the repeated transmission target time domain resource, and further includes:

Optionally, the time domain resource of at least one repetition transmission in the repetition transmission is a discontinuous time domain resource, and the length of the time domain resource of each repetition transmission is the same;

The communication unit 502 further includes, after transmitting the first portion of the data on the time domain resource of the nth retransmission:

Optionally, the first time domain resource includes a time domain resource determined according to a rule of continuous resource mapping, and the starting resource in the target time domain resource is a time domain resource that can be occupied by the first repeated transmission after the time domain resource determined according to the rule of continuous resource mapping.

Optionally, the repeated transmission includes at least one transmission of an uplink transmission or at least one transmission of a downlink transmission.

When the processing unit 501 is a processor and the communication unit 502 is a communication interface, the communication device according to the embodiment of the present application may be a communication device shown in fig. 26.

It should be noted that, the communication apparatus shown in fig. 25 or fig. 26 may be used to implement the steps executed by the terminal device or the network device in the above embodiment, and the embodiments of the present application are not repeated.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, or may be embodied in software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in random access Memory (Random Access Memory, RAM), flash Memory, read Only Memory (ROM), erasable programmable Read Only Memory (Erasable Programmable ROM), electrically Erasable Programmable Read Only Memory (EEPROM), registers, hard disk, a removable disk, a compact disc Read Only Memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in an access network device, a target network device, or a core network device. It is of course also possible that the processor and the storage medium reside as discrete components in an access network device, a target network device, or a core network device.

Those skilled in the art will appreciate that in one or more of the examples described above, the functions described in the embodiments of the present application may be implemented, in whole or in part, in software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy Disk, a hard Disk, a magnetic tape), an optical medium (e.g., a digital video disc (Digital Video Disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

The foregoing detailed description of the embodiments of the present application further illustrates the purposes, technical solutions and advantageous effects of the embodiments of the present application, and it should be understood that the foregoing description is only a specific implementation of the embodiments of the present application, and is not intended to limit the scope of the embodiments of the present application, and any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the scope of the embodiments of the present application.

Claims

1. A method of determining time domain resources for data transmission, comprising:

and transmitting data on the repeated transmission target time domain resource.

2. The method of claim 1, wherein the second time domain resource is determined based on the time domain resource of the first one of the repeated transmissions, the number of repetitions of the repeated transmission, and a transmission point/transmission-reception point TRP switching interval between any two adjacent repeated transmissions; or the second time domain resource is determined according to the starting time of the first transmission in the repeated transmission, the length of the time domain resource required by each repeated transmission and the switching interval between any two adjacent repeated transmissions, and each TRP corresponds to a transmission configuration indication TCI state or an index value of a higher layer configuration.

3. The method according to claim 1, wherein the first time domain resource is determined from time domain resource indication information, the time domain resource indication information comprising first information comprising unavailable time domain resource information and/or second information comprising slot format information SFI.

4. The method of claim 3, wherein the time domain resource indication information comprises first information, and wherein the first time domain resource is a time domain resource indicated by the first information.

5. The method of claim 3, wherein the time domain resource indication information comprises first information comprising signal configuration information, the first time domain resource being a fifth time domain resource occupied by a signal indicated by the signal configuration information.

6. The method of claim 5, wherein the second time domain resource comprises the fifth time domain resource, and wherein the frequency domain resource corresponding to the fifth time domain resource in the initial repeated transmission is the same as the frequency domain resource occupied by the signal indicated by the signal configuration information.

7. The method of claim 6, wherein the signal indicated by the signal configuration information comprises at least one of: a physical random access channel PRACH, a channel sounding reference signal SRS, a synchronization signal block SSB, and a positioning reference signal PRS.

8. The method according to any of claims 3-7, wherein the time domain resource indication information comprises second information comprising uplink resources, downlink resources and flexible resources;

if the repeated transmission is multiple transmissions of a physical uplink control channel PUCCH or a physical uplink shared channel PUSCH, the first time domain resource is the downlink resource, or the downlink resource and the first part of the flexible resource, or all of the downlink resource and the flexible resource;

And if the repeated transmission is multiple transmissions of a physical downlink control channel PDCCH or a physical downlink shared channel PDSCH, the first time domain resource is the uplink resource, or the uplink resource and the first part of the flexible resource, or all of the uplink resource and the flexible resource.

9. The method according to any of claims 3-7, wherein the time domain resource indication information is configured dynamically by a physical downlink control channel PDCCH, or semi-statically by higher layer signaling, or preconfigured.

10. The method according to any of claims 3-7, wherein the first information is transmitted by physical layer signaling or higher layer signaling.

11. The method of claim 1, wherein the time domain resource for each of the repeated transmissions is a contiguous time domain resource.

12. The method of claim 11, wherein the length of the time domain resources of each repetition is the same, and the length of consecutive time domain resources in the target time domain resources is greater than or equal to the length of the time domain resources of each repetition.

13. The method of claim 11, wherein the length of the time domain resources for each retransmission is different, the starting resources in the target time domain resources are determined according to a rule of continuous resource mapping, and the length of the target time domain resources is less than the product of the length of the time domain resources required for each transmission and the number of repetitions of the retransmission;

14. The method of claim 11, wherein the time domain resources of at least one of the repeated transmissions are non-contiguous time domain resources, each time the length of the time domain resources of the repeated transmissions is the same, and the starting resources of the target time domain resources are determined according to a rule of contiguous resource mapping;

if the length of the time domain resource of the nth retransmission in the retransmission is smaller than the length of the time domain resource required by each retransmission, transmitting a first part of the data on the time domain resource of the nth retransmission, wherein n is a positive integer, and is more than 0 and less than or equal to the number of repetitions of the retransmission, and the length of the first part is the same as the length of the time domain resource of the nth retransmission;

15. The method of claim 11, wherein the length of the time domain resource of the nth one of the repeated transmissions is less than the length of the time domain resource required for each of the repeated transmissions;

and respectively transmitting the data on the time domain resources of the first to n-1 th repeated transmission, wherein n is a positive integer, and n is more than 0 and less than or equal to the repeated times of the repeated transmission.

16. The method of claim 15, wherein the transmitting data on the repeatedly transmitted target time domain resource further comprises:

17. The method of claim 16, wherein the time domain resources of at least one of the retransmissions are non-contiguous time domain resources, the time domain resources of each of the retransmissions being the same length;

18. The method of claim 11, wherein the first time domain resource comprises a time domain resource determined according to a rule of continuous resource mapping, and wherein a starting resource in the target time domain resource is a time domain resource that is occupiable by the first one of the repeated transmissions after the time domain resource determined according to the rule of continuous resource mapping.

19. The method according to any of claims 1-7, wherein the repeated transmissions comprise at least one transmission of an uplink transmission or at least one transmission of a downlink transmission.

20. A communication device, characterized in that it comprises means for implementing a method for determining time domain resources of data transmission according to any of claims 1-19.

21. A communication device comprising a processor, a memory, and a transceiver, the processor, the memory, and the transceiver being coupled, wherein,

The memory is used for storing instructions;

22. A computer storage medium storing a computer program or instructions which, when executed by a processor, cause the processor to perform the method of determining time domain resources for data transmission of any one of claims 1-19.