CN113784441A

CN113784441A - Communication method and communication device

Info

Publication number: CN113784441A
Application number: CN202010769660.1A
Authority: CN
Inventors: 刘云; 薛丽霞
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-06-10
Filing date: 2020-07-31
Publication date: 2021-12-10
Also published as: WO2021248949A1

Abstract

The invention provides a communication method and a communication device, wherein in a retransmission scene of uplink transmission, a terminal device transmits a redundancy version by using an uplink symbol in a time slot which comprises a downlink symbol and an uplink symbol, so that resource waste caused by that the uplink symbol in the time slot which comprises the downlink symbol and the uplink symbol is not used in the uplink transmission is avoided, and meanwhile, compared with the condition that the uplink symbol in the time slot which comprises the downlink symbol and the uplink symbol is not used in the uplink transmission, the method provided by the application increases the number of the uplink symbols used in the uplink transmission, thereby improving the coverage of the uplink transmission.

Description

Communication method and communication device

Technical Field

The present application relates to the field of communications, and more particularly, to a communication method and a communication apparatus.

Background

Currently, in a wireless communication system, there is downlink transmission from a network device to a terminal device and uplink transmission from the terminal device to the network device.

In uplink transmission, due to the limitation of cost, a terminal device often uses a relatively cheap power amplifier, and the upper power limit of the power amplifier is smaller than that of a power amplifier of a network device, so the coverage of uplink transmission is generally lower than that of downlink transmission, and how to improve the coverage of uplink transmission is a research focus of coverage enhancement.

The uplink transmission channel generally includes a Physical Uplink Control Channel (PUCCH) and a Physical Uplink Shared Channel (PUSCH), where the PUCCH belongs to the control channel and has a relatively wide coverage area, the PUSCH belongs to the data channel, the amount of transmitted information is large, and the coverage area is relatively low, and therefore it is very necessary to improve the coverage area of the PUSCH.

Disclosure of Invention

The application provides a communication method, in a retransmission scene of uplink transmission, a terminal device is enabled to use an uplink symbol transmission Redundancy Version (RV) in a time slot including both a downlink symbol and an uplink symbol, so as to avoid resource waste caused by that the uplink symbol in the time slot including both the downlink symbol and the uplink symbol is not used in the uplink transmission, and meanwhile, compared with a case that the uplink symbol in the time slot including both the downlink symbol and the uplink symbol is not used in the uplink transmission, the method provided by the application increases the number of the uplink symbols used in the uplink transmission, thereby improving the coverage of the uplink transmission.

In a first aspect, a communication method is provided, including: a terminal device (which may also be a module, for example, a chip, in the terminal device) receives first Downlink Control Information (DCI), where first indication information in the first DCI indicates a first uplink transmission resource, where the first uplink transmission resource is used to transmit at least one redundancy version RV of original information, the first uplink transmission resource includes an uplink symbol in a first slot, the first slot is an earliest slot in the first uplink transmission resource in time, the first slot further includes a downlink symbol, and the downlink symbol is earlier in time than the uplink symbol; determining the second uplink transmission resource in the first uplink transmission resource, wherein the second uplink transmission resource at least comprises an uplink symbol in the first time slot; and transmitting a first RV on the second uplink transmission resource, wherein the first RV is one RV in the at least one RV.

Based on the above technical solution, in a retransmission scenario of uplink transmission, a terminal device transmits one RV using an uplink symbol in a time slot including both a downlink symbol and an uplink symbol, so as to avoid resource waste caused by that the uplink symbol in the time slot including both the downlink symbol and the uplink symbol is not used in uplink transmission, and meanwhile, compared with a case that the uplink symbol in the time slot including both the downlink symbol and the uplink symbol is not used in uplink transmission, the method provided by the present application increases the number of uplink symbols used in uplink transmission, thereby improving the coverage of uplink transmission.

In one possible implementation, the second uplink transmission resource further includes at least one time slot later in time than the first time slot.

Based on the above technical solution, in a retransmission scenario of uplink transmission, when transmitting one RV, in addition to using an uplink symbol in a slot that includes both a downlink symbol and an uplink symbol, an uplink symbol of at least one slot that is later in time than the uplink slot is also used, so that when the number of uplink symbols in a slot that includes both a downlink symbol and an uplink symbol is small, by increasing the number of uplink symbols used for transmitting one RV, the decoding difficulty brought on the network device side due to the small number of uplink symbols carrying one RV is reduced.

In a possible implementation manner, the first indication information indicates a start symbol of the first uplink transmission resource and a length of the first uplink transmission resource, or the first indication information indicates a start symbol and a stop symbol of the first uplink transmission resource, or the first indication information indicates a start symbol of the first uplink transmission resource and a length of an uplink symbol occupied by the first uplink transmission resource in the first slot, where the start symbol is used to determine a start position of the first uplink transmission resource in the first slot, and the stop symbol is used to determine a stop position of the first uplink transmission resource.

In a possible implementation manner, the first indication information indicates a first identifier, where the first identifier corresponds to a start symbol of the first uplink transmission resource and a resource length, where the start symbol is used to determine a start position of the first uplink transmission resource in the first timeslot, and the resource length is a resource length occupied by the first uplink transmission resource in the first timeslot, or the resource length is a length of the first uplink transmission resource.

In one possible implementation, the method further includes: receiving a Radio Resource Control (RRC) signaling, wherein the RRC signaling comprises at least two groups of parameters, each group of parameters comprises an identifier, a starting symbol of the first uplink transmission resource and the resource length, and at least two identifiers corresponding to the at least two groups of parameters comprise the first identifier.

In a possible implementation manner, the determining the second uplink transmission resource in the first uplink transmission resource includes: receiving a second DCI, wherein second indication information in the second DCI indicates the number of uplink symbols of the second uplink transmission resource; and determining the second uplink transmission resource in the first uplink transmission resource according to the second indication information.

Based on the technical scheme, the number of the second uplink transmission resources is indicated to the terminal equipment through the second DCI, so that the number of the second uplink transmission resources can be adjusted through the second DCI, and the flexibility of communication is improved.

In a possible implementation manner, the determining the second uplink transmission resource in the first uplink transmission resource includes: and determining the second uplink transmission resource in the first uplink transmission resource according to the transmission times m based on the incidence relation between the second uplink transmission resource and the transmission times m and the number of uplink symbols of the first uplink transmission resource.

In one possible implementation, the method further includes: and receiving third DCI, wherein third indication information in the third DCI indicates the incidence relation between the number of the uplink symbols of the second uplink transmission resource and the number of transmission times m and the number of the uplink symbols included in the first uplink transmission resource.

Based on the above technical solution, the incidence relation between the number of uplink symbols of the second uplink transmission resource and the number of transmission times m and the number of uplink symbols included in the first uplink transmission resource is indicated to the terminal device through the third DCI, so that the incidence relation can be adjusted by the second DCI, thereby improving the flexibility of communication.

In one possible implementation, the method further includes: receiving fourth DCI, wherein fourth indication information in the fourth DCI indicates the transmission times m.

In a possible implementation manner, the second uplink transmission resource includes all uplink symbols of the first slot and all uplink symbols of the at least one slot.

In one possible implementation, the method further includes: determining a third uplink transmission resource in the first uplink transmission resource according to the number of uplink symbols of the first uplink transmission resource and the transmission times m, wherein the third uplink transmission resource comprises a plurality of uplink symbols which are later than the second uplink transmission resource in time; and transmitting a second RV on the third uplink transmission resource, wherein the second RV is any one RV except the first RV in the at least one RV.

In one possible implementation, the method further includes: determining a first resource length according to at least one uplink transmission resource corresponding to the at least one RV; determining a Transport Block Size (TBS) corresponding to the original information according to the first resource length; and generating the first RV according to the TBS.

In a possible implementation manner, the first resource length is a length of an uplink transmission resource with a largest length in at least one uplink transmission resource corresponding to the at least one RV.

In a possible implementation manner, the length of the uplink transmission resource with the largest length is a quotient obtained by dividing the number of uplink symbols in the first uplink transmission resource by the transmission number m and rounding up the quotient.

In a second aspect, a communication method is provided, including: a network device (which may also be a module, e.g., a chip, in the network device) generates a first DCI, where first indication information in the first DCI indicates a first uplink transmission resource; sending the first DCI, where the first uplink transmission resource is used to transmit at least one redundancy version RV of original information, where the first uplink transmission resource includes an uplink symbol in a first time slot, the first time slot is a temporally earliest time slot in the first uplink transmission resource, and the first time slot further includes a downlink symbol, and the downlink symbol is temporally earlier than the uplink symbol; receiving a first RV on a second uplink transmission resource, wherein the first RV is one RV in the at least one RV, and the second uplink transmission resource at least comprises an uplink symbol in the first time slot.

In a possible implementation manner, the first indication information indicates a first identifier, where the first identifier corresponds to a start symbol of the first uplink transmission resource and a resource length, where the start symbol is used to determine a start position of the first uplink transmission resource in the first timeslot, and the resource length is a resource length occupied by the first uplink transmission resource in the first timeslot, or the resource length is the length of the first uplink transmission resource.

In one possible implementation, the method further includes: and sending a Radio Resource Control (RRC) signaling, wherein the RRC signaling comprises at least two groups of parameters, each group of parameters comprises an identifier, a starting symbol of the first uplink transmission resource and a resource length, and at least two identifiers corresponding to the at least two groups of parameters comprise the first identifier.

In one possible implementation, the method further includes: and sending a second DCI, wherein second indication information in the second DCI indicates the number of uplink symbols of the second uplink transmission resource.

In one possible implementation, the method further includes: and sending third DCI, wherein third indication information in the third DCI indicates the incidence relation between the number of the uplink symbols of the second uplink transmission resource and the number m of transmission times and the number of the uplink symbols included in the first uplink transmission resource.

In one possible implementation, the method further includes: and sending fourth DCI, wherein fourth indication information in the fourth DCI indicates the transmission times m.

In one possible implementation, the method further includes: receiving a second RV on a third uplink transmission resource, wherein the second RV is any one RV except the first RV in the at least one RV, and the third uplink transmission resource comprises a plurality of uplink symbols which are later than the second uplink transmission resource in time.

In a third aspect, a communication apparatus is provided, which may be the terminal device in the above method, or a chip applied in the terminal device. The communication device includes: a processor, coupled to the memory, and configured to execute the instructions in the memory to implement the method performed by the terminal device in the first aspect and any one of the possible implementations of the first aspect. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

When the communication device is a terminal device, the communication interface may be a transceiver, or an input/output interface.

When the communication device is a chip applied to a terminal device, the communication interface may be an input/output interface.

Alternatively, the transceiver may be a transmit-receive circuit. Alternatively, the input/output interface may be an input/output circuit.

In a fourth aspect, a communication apparatus is provided, where the communication apparatus may be a network device in the method, or a chip applied to the network device. The communication device includes: a processor, coupled to the memory, may be configured to execute the instructions in the memory to implement the method performed by the network device in the second aspect and any one of the possible implementations thereof. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

When the communication device is a network device, the communication interface may be a transceiver, or an input/output interface.

When the communication device is a chip applied in a network device, the communication interface may be an input/output interface.

In a fifth aspect, there is provided a program for performing any of the methods of the first aspect and its possible embodiments, or for performing any of the methods of the second aspect and its possible embodiments, when executed by a communication device.

In a sixth aspect, a program product is provided, the program product comprising: program code for causing a communication device to perform any of the methods of the first aspect and its possible embodiments or for causing a communication device to perform any of the methods of the second aspect and its possible embodiments when said program code is run by the communication device.

In a seventh aspect, there is provided a computer readable storage medium storing a program which, when executed, causes a communication apparatus to perform any of the methods of the first aspect and its possible embodiments or to perform any of the methods of the second aspect and its possible embodiments.

Drawings

Fig. 1 is an architecture diagram of a mobile communication system suitable for use in embodiments of the present application;

FIG. 2 is a diagram of an example resource allocation in uplink transmission;

FIG. 3 is a schematic interaction diagram of an example communication method provided by an embodiment of the present application;

fig. 4 is a diagram of another example of resource allocation in uplink transmission;

fig. 5 is a diagram illustrating another example of resource allocation in uplink transmission;

FIG. 6 is a diagram of another example of resource allocation in uplink transmission;

fig. 7 is a diagram illustrating another example of resource allocation in uplink transmission;

fig. 8 is a diagram illustrating another example of resource allocation in uplink transmission;

fig. 9 is a diagram illustrating another example of resource allocation in uplink transmission;

fig. 10 is a diagram illustrating another example of resource allocation in uplink transmission;

fig. 11 is a diagram illustrating another example of resource allocation in uplink transmission;

FIG. 12 is a schematic interaction diagram of another communication method provided by an embodiment of the present application;

FIG. 13 is a schematic block diagram of an example of a communications device provided herein;

fig. 14 is a schematic block diagram of another example of a communications device provided herein.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, a Time Division Duplex (TDD) system, a New Radio (NR) in a 5th Generation (5G) mobile communication system, a future mobile communication system, and the like.

Fig. 1 is a schematic architecture diagram of a mobile communication system suitable for use in the embodiments of the present application. As shown in fig. 1, the mobile communication system includes a core network device 110, a radio access network device 120, and at least one terminal device (e.g., a terminal device 130 and a terminal device 140 in fig. 1). The terminal equipment is connected with the wireless access network equipment in a wireless mode, and the wireless access network equipment is connected with the core network equipment in a wireless or wired mode. The core network device and the radio access network device may be separate physical devices, or the function of the core network device and the logical function of the radio access network device may be integrated on the same physical device, or a physical device may be integrated with a part of the function of the core network device and a part of the function of the radio access network device. The terminal equipment may be fixed or mobile. Fig. 1 is a schematic diagram, and other network devices, such as a wireless relay device and a wireless backhaul device, may also be included in the communication system, which are not shown in fig. 1. The embodiments of the present application do not limit the number of core network devices, radio access network devices, and terminal devices included in the mobile communication system.

The Radio Access Network device in this embodiment is an Access device in which a terminal device is accessed to the mobile communication system in a wireless manner, and may be a base station NodeB, an evolved node b (eNodeB), a Transmission Reception Point (TRP), a next generation base station (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, or an Access node in a WiFi system, or may be a Radio controller in a Cloud Radio Access Network (CRAN) scenario, or may be a relay station, a vehicle-mounted device, a wearable device, a Network device in a PLMN Network in the future evolution, or the like. The embodiments of the present application do not limit the specific technologies and the specific device forms adopted by the radio access network device. In this application, a radio access network device is referred to as a network device for short, and if no special description is provided, network devices are referred to as radio access network devices in this application.

The Terminal device in the embodiment of the present application may also be referred to as a Terminal, a Terminal device (UE), a Mobile Station (MS), a Mobile Terminal (MT), and the like. The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in home (smart home), and the like. The embodiment of the present application does not limit the specific technology and the specific device form adopted by the terminal device.

The network equipment and the terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, balloons and satellite vehicles. The embodiment of the application does not limit the application scenarios of the network device and the terminal device.

The network device and the terminal device may communicate with each other through a licensed spectrum (licensed spectrum), may communicate with each other through an unlicensed spectrum (unlicensed spectrum), or may communicate with each other through both the licensed spectrum and the unlicensed spectrum. The network device and the terminal device may communicate with each other through a frequency spectrum of 6 gigahertz (GHz) or less, through a frequency spectrum of 6GHz or more, or through both a frequency spectrum of 6GHz or less and a frequency spectrum of 6GHz or more. The embodiments of the present application do not limit the spectrum resources used between the network device and the terminal device.

It is to be understood that, in the embodiments of the present application, a Physical Downlink Shared Channel (PDSCH), a Physical Downlink Control Channel (PDCCH), and a Physical Uplink Shared Channel (PUSCH) are only used as examples of a downlink data channel, a downlink control channel, and an uplink data channel, and in different systems and different scenarios, data channels and control channels may have different names, which is not limited in the embodiments of the present application.

Currently, different RVs of the same original information can be transmitted on symbols at the same position in consecutive multiple uplink slots (slots), and one uplink slot can only be used for transmitting one RV.

However, since different RVs of the same original information can only be transmitted on the same position symbol in consecutive uplink slots, and the remaining uplink symbol of slot (n +1) has only 2 or 4 available symbols, this may result in that the uplink symbol in slot (n +1) is not used during uplink transmission, which is not favorable for improving the coverage of uplink transmission.

In uplink transmission, if an uplink symbol in slot (n +1) in fig. 2 is used, it is possible to improve the coverage of uplink transmission. In other words, the number of uplink symbols used for uplink transmission is increased to improve the coverage of uplink transmission.

In view of this, an embodiment of the present application provides a communication method, in a retransmission scenario of uplink transmission, a terminal device transmits one RV using an uplink symbol in a time slot including both a downlink symbol and an uplink symbol, so as to avoid resource waste caused by an uplink symbol in a time slot including both a downlink symbol and an uplink symbol not being used in uplink transmission, and meanwhile, compared with a case that an uplink symbol in a time slot including both a downlink symbol and an uplink symbol is not used in uplink transmission, the method provided in the present application increases the number of uplink symbols used in uplink transmission, thereby improving a coverage of uplink transmission.

Hereinafter, the communication method according to the embodiment of the present application will be described in detail with reference to fig. 3 to 14.

Fig. 3 is a schematic interaction diagram of a communication method provided in an embodiment of the present application. Each step of the method is explained in detail below.

In the embodiment of the present application, the method 200 is described by taking a terminal device and a network device as an example of an execution subject for executing the method 200. By way of example and not limitation, the execution subject of the execution method 200 may also be a chip corresponding to the terminal device and a chip corresponding to the network device.

Step 210, the terminal device reports the uplink transmission characteristics of the terminal device supporting the cross-slot boundary to the network device.

The terminal device may report the supported cross-slot boundary transmission characteristics to the network device.

For example, the terminal device sends capability indication information to the network device, where the capability indication information indicates that the terminal device supports the uplink transmission characteristics across the slot boundary. The network device determines that the terminal device supports the uplink transmission characteristic across the time slot boundary according to the report of the terminal device, may send DCI or Radio Resource Control (RRC) signaling to the terminal device, and configures the terminal device to support the uplink transmission characteristic across the time slot boundary through the DCI or the RRC. For example, it may be indicated by some fields in DCI or RRC that the terminal device may uplink transmit based on the cross-slot boundary uplink transmission characteristics.

It should be noted that step 210 may not be necessary, for example, the network device may determine, through the information such as the model of the terminal device, the support version of the terminal device, and the like, that the terminal device supports the uplink transmission characteristic across the slot boundary, in this case, the terminal device does not need to report the uplink transmission characteristic across the slot boundary to the network device.

Step 220, the network device configures the terminal device to support the uplink transmission characteristics across the slot boundary.

In a retransmission scenario, a terminal device generates different RVs of the same original information and transmits the different RVs of the same original information to a network device, and an uplink transmission resource used by the terminal device to transmit one RV may occupy only one uplink time slot, or when the terminal device supports a cross-slot boundary uplink transmission characteristic, the uplink transmission resource used to transmit one RV may occupy at least two uplink time slots. In some embodiments, the network device configures, according to the report from the terminal device, the terminal device to support the uplink transmission characteristic across the time slot boundary, and at this time, the terminal device may transmit one RV using uplink transmission resources occupying at least two uplink time slots.

In other embodiments, the network device may determine, according to the information such as the model of the terminal device, the support version of the terminal device, and the like, that the terminal device supports the uplink transmission characteristic across the slot boundary.

The embodiment of the present application does not limit this.

In step 230, the network device configures the transmission times m.

In a retransmission scene, the network device configures a transmission time m, and the terminal device generates m RVs of the same original information according to the transmission time m, where m is an integer greater than or equal to 1.

For example, the network device may indicate the transmission number m to the terminal device through DCI or RRC.

Step 240, the network device configures uplink transmission resources for the terminal device. Accordingly, the terminal device determines the uplink transmission resource configured by the network device.

In a retransmission scenario, the network device configures an uplink transmission resource for the terminal device, and the terminal device further determines the uplink transmission resource configured by the network device, so as to send m RVs of the same original information to the network device on the uplink transmission resource. It should be noted that, in the embodiment of the present application, the starting timeslot of the uplink transmission resource configured by the network device includes both the uplink symbol and the downlink symbol, and the downlink symbol is earlier in time than the uplink symbol.

For example, the network device may configure the uplink transmission resource for the terminal device in the following manner:

mode 1

The network equipment sends DCI to the terminal equipment, the DCI indicates the starting symbol of the uplink transmission resource and the length of the uplink transmission resource, and the terminal equipment determines the uplink transmission resource according to the DCI.

For example, the DCI indicates that the starting uplink symbol of the first uplink transmission resource is symbol 10 and indicates that the length of the uplink transmission resource is 30 uplink symbols.

The terminal device may determine the starting time slot of the uplink transmission resource according to the time slot carrying the DCI, that is, determine the time slot corresponding to the symbol 10, for example, the time slot in which the terminal device receives the DCI is N, and the terminal device may determine the starting time slot of the uplink transmission resource to be N + X according to an offset X. Where X may be standard defined or may be network device configured. For example, assuming that X is 4, the terminal device receives DCI at slot (n-3), and the starting slot is slot (n + 1). For convenience of description, the following describes an embodiment of the present application by taking a starting slot as slot (n +1) as an example, where slot (n +1) includes both uplink symbols and downlink symbols, and in mode 1, the downlink symbols included in slot (n +1) are symbols 0 to 9, and the uplink symbols included in slot (n +1) are symbols 10 to 13.

The terminal device may determine that the starting position of the uplink transmission resource in slot (n +1) is symbol 10, determine symbols 10 to 13 in slot (n +1), symbols 0 to 13 in slot (n +2), and 12 uplink symbols in slot (n +3) as the uplink transmission resource, and for slot (n +3), the terminal device may determine any 12 consecutive uplink symbols in slot (n +3) as a part of the uplink transmission resource.

For example, the terminal device may determine, as part of the uplink transmission resource, symbol 0 to symbol 11 in slot (n +3), or determine, as part of the uplink transmission resource, symbol 2 to symbol 13 in slot (n +3), which is not limited in this embodiment of the present application.

Mode 2

The network equipment sends DCI to the terminal equipment, the DCI indicates a starting symbol and a terminating symbol of the uplink transmission resource, and the terminal equipment determines the uplink transmission resource according to the DCI and the number of time slots occupied by the uplink transmission resource.

For example, the DCI indicates that a start symbol of the uplink transmission resource is symbol 12 and indicates that a termination symbol is symbol 13.

As can be seen from the example in the mode 1, the starting slot determined by the terminal device is slot (n +1), and in the mode 2, the uplink symbols included in slot (n +1) are symbols 12 to 13. In addition, the terminal device may determine the terminating time slot of the uplink transmission resource according to the starting time slot of the uplink transmission resource and the number of time slots occupied by the uplink transmission resource, for example, the network device may indicate the number of time slots to the terminal device through RRC, or the terminal device may determine the number of time slots according to the transmission number m in step 230, for example, the terminal device determines m + k as the number of time slots, where k is an integer greater than or equal to 1.

For example, assuming that the transmission number m is 2, and k is 1, the terminal device may determine that the number of slots occupied by the uplink transmission resource is 3, based on the starting slot (n +1) and the number of slots 3, the terminal device determines that the terminating slot of the uplink transmission resource is slot (n +3), since the starting symbol is symbol 12 and the terminating symbol is symbol 13, the terminal device may determine that the starting position of the uplink transmission resource in slot (n +1) is symbol 12, the terminating symbol in slot (n +1) is symbol 13, and assuming that the starting positions of the uplink transmission resource in slot (n +2) and slot (n +3) are both symbol 0, the terminal device may determine that the starting positions of the uplink transmission resource in slot (n +2) and slot (n +3) are both symbol 0 and the terminating positions are both symbol 13, and the terminal device puts the symbol 12 to symbol 13 of slot (n +1), symbols 0 to 13 of slot (n +2) and symbols 0 to 13 of slot (n +3) are determined as uplink transmission resources.

Mode 3

The network equipment sends DCI to the terminal equipment, the DCI indicates a starting symbol of the uplink transmission resource and the length of the uplink symbol occupied by the uplink transmission resource in the starting time slot, and the terminal equipment determines the uplink transmission resource according to the DCI and the number of the time slots occupied by the uplink transmission resource.

For example, the DCI indicates that the starting symbol of the uplink transmission resource is symbol 10, and indicates that the length of the uplink symbol occupied by the uplink transmission resource in the starting slot is 4, the terminal device may determine that the last symbol occupied by the uplink transmission resource in the starting slot is symbol 13, and a symbol at the same position as the starting slot is also used as a termination symbol in a subsequent slot that is later than the starting slot, that is, the terminal device may determine that the last uplink symbol occupied by the uplink transmission time domain resource in each subsequent slot is symbol 13 of each slot. Subsequent slots later in time than the starting slot also take the same position symbol as the starting slot as the end symbol, which may be standard defined or network device indicated.

As can be seen from the example in the mode 1, the starting slot determined by the terminal device is slot (n +1), and in the mode 3, the uplink symbols included in slot (n +1) are symbols 10 to 13. In addition, the terminal device may determine the terminating time slot of the uplink transmission resource according to the starting time slot of the uplink transmission resource and the number of time slots occupied by the uplink transmission resource, for example, the network device may indicate the number of time slots to the terminal device through RRC, or the terminal device may determine the number of time slots according to the transmission number m in step 230, for example, the terminal device determines m + k as the number of time slots, where k is an integer greater than or equal to 1.

For example, the number of slots indicated by the network device to the terminal device through RRC is 3, since the starting slot is slot (n +1), the terminal device determines that the terminating slot of the uplink transmission resource is slot (n +3), the uplink symbol included in slot (n +1) is symbol 10 to symbol 13, the terminal device determines that the starting position of the uplink transmission resource in slot (n +1) is symbol 10 and the terminating position is symbol 13, assuming that the starting positions of the uplink transmission resource in slot (n +2) and slot (n +3) are both symbol 0, since the positions of the terminating symbols of the uplink transmission resource in slot (n +2) and slot (n +3) are the same as the positions of the terminating symbols in slot (n +1), the terminal device may determine that the terminating symbols of the uplink transmission resource in slot (n +2) and slot (n +3) are symbol 13, so that the terminal device makes the symbols 10 to symbol 13 of slot (n +1), symbols 0 to 13 of slot (n +1) and symbols 0 to 13 of slot (n +3) are determined as uplink transmission resources.

Mode 4

The network device configures multiple groups of parameters to the terminal device through RRC, each group of parameters at least comprises an index number, a starting symbol and a resource length, and indicates the index number corresponding to a certain group of parameters to the terminal device through DCI, wherein the resource length can be the length of an uplink symbol occupied by an uplink transmission resource in a starting time slot, the terminal device determines the starting symbol and the resource length corresponding to the index number according to the index number, determines the starting time slot of the uplink transmission resource according to the time slot for receiving the DCI, determines the starting position of the uplink transmission resource in the starting time slot and the ending position of the uplink transmission resource in the starting time slot according to the starting symbol and the resource length, and determines the ending position of the uplink transmission resource in each time slot after the starting time slot according to the ending position of the uplink transmission resource in the starting time slot.

For example, the network device configures two sets of parameters for the terminal device through RRC, which are: (17, 10, 4), (18, 12, 2), and the index number indicated to the terminal device through the DCI is 18, the terminal device determines a set of parameters corresponding to the index number 18 as (12, 2). Wherein, it can be determined according to 12 that the starting symbol is a symbol 12, 2 represents the length of the symbol occupied by the uplink transmission resource in the time slot in which the starting symbol is located, in other words, 2 represents the length of the symbol occupied by the uplink transmission resource in the starting time slot, when the starting symbol is the symbol 12, 2 represents that the symbol occupied by the uplink transmission resource in the starting time slot is the symbol 12 and the symbol 13, and a symbol at the same position as the starting time slot is also adopted as a termination symbol in a subsequent time slot later than the starting time slot, that is, the terminal device can determine that the last uplink symbol occupied by the uplink transmission time domain resource in each subsequent time slot is the symbol 13 of each time slot. Subsequent slots later in time than the starting slot also take the same position symbol as the starting slot as the end symbol, which may be standard defined or network device indicated.

As can be seen from the example in the mode 1, the starting slot determined by the terminal device is slot (n +1), and in the mode 4, the uplink symbols included in slot (n +1) are symbols 12 to 13. In addition, the terminal device may determine the terminating time slot of the uplink transmission resource according to the starting time slot of the uplink transmission resource and the number of time slots occupied by the uplink transmission resource, for example, the network device may indicate the number of time slots to the terminal device through RRC, or the terminal device may determine the number of time slots according to the transmission number m in step 230, for example, the terminal device determines m + k as the number of time slots, where k is an integer greater than or equal to 1.

The number of slots indicated to the terminal device by the network device through the RRC is 3, since the starting slot is slot (n +1), the terminal device determines that the terminating slot of the uplink transmission resource is slot (n +3), the uplink symbol included in slot (n +1) is symbol 12 to symbol 13, the terminal device determines that the starting position of the uplink transmission resource in slot (n +1) is symbol 12, and the terminating position is symbol 13, assuming that the starting positions of the uplink transmission resource in slot (n +2) and slot (n +3) are both symbol 0, since the positions of the terminating symbols of the uplink transmission resource in slot (n +2) and slot (n +3) are the same as the positions of the terminating symbols in slot (n +1), the terminal device may determine that the terminating symbols of the uplink transmission resource in slot (n +2) and slot (n +3) are symbol 13, so that the terminal device makes symbols 12 to 13 of slot (n +1), symbols 0 to 13 of slot (n +1) and symbols 0 to 13 of slot (n +3) are determined as uplink transmission resources.

Mode 5

The network equipment configures a plurality of groups of parameters to the terminal equipment through RRC, each group of parameters at least comprises an index number, a starting symbol and a resource length, and indicates the index number corresponding to a certain group of parameters to the terminal equipment through DCI, wherein the resource length can be the length of an uplink transmission resource configured for the terminal equipment by the network equipment, the terminal equipment determines the starting symbol corresponding to the index number and the length of the uplink transmission resource according to the index number, determines the starting time slot of the uplink transmission resource according to the time slot for receiving the DCI, determines the starting position of the uplink transmission resource in the starting time slot by combining the starting symbol, and determines the uplink transmission resource by combining the length of the uplink transmission resource.

For example, the network device configures four sets of parameters for the terminal device through RRC, which are: (19, 10,18), (20, 10,32), (21, 12,16), (22, 12,30), and the index number indicated to the terminal device through the DCI is 21, the terminal device determines a set of parameters corresponding to the index number 21 as (12, 16). Wherein, it can be determined from 12 that the starting symbol is symbol 12,16 represents the length of the uplink transmission resource, in other words, 16 represents the length of the symbol occupied by the uplink transmission resource from the starting symbol, when the starting symbol is symbol 12,16 represents that the symbol occupied by the uplink transmission resource is symbol 12 and symbol 13 in the starting slot, and symbol 0 to symbol 13 of the next slot later in time than the starting slot.

As can be seen from the example in the mode 1, the starting slot determined by the terminal device is slot (n +1), and in the mode 5, the uplink symbols included in slot (n +1) are symbols 12 to 13. The terminal equipment determines that the initial position of the uplink transmission resource in the slot (n +1) is a symbol 12, and determines the symbols 12 to 13 of the slot (n +1) and the symbols 0 to 13 of the slot (n +2) as the uplink transmission resource by combining the length 16 of the uplink transmission resource.

In the embodiments 4 and 5, the multiple sets of parameters configured by the network device for the terminal device may also be configured by other signaling, which is not limited in this embodiment of the present application.

In step 250, the terminal device determines m uplink transmission resources for m transmissions according to the uplink transmission resources configured by the network device.

In the following description, the number of uplink symbols in the starting slot in the uplink transmission resource is denoted as N₁Recording the number of uplink symbols except the initial timeslot in the uplink transmission resource as N₂. For example, the terminal device may determine m uplink transmission resources for m transmissions in the following manners.

Mode 1

In an implementation manner, two resource lengths may be determined first, which are respectively recorded as length 1 and length 2, for example, length 1 and length 2 respectively satisfy relational expression (1) and relational expression (2), and the terminal device may determine m uplink transmission resources for m transmissions according to length 1 and length 2, for example, the terminal device may determine that the length of the uplink transmission resource determined for some transmissions in m transmissions satisfies length 1, and the length of the uplink transmission resource determined for other transmissions satisfies length 2.

The terminal device may determine the number of uplink transmission resources satisfying length 1 and the number of uplink transmission resources satisfying length 2 according to relation (3) and relation (4):

mod(N₁+N₂，m) (3)

m-mod(N₁+N₂，m) (4)

for example, m is 2, N₁＝2，N₂When the length is 28, the length 1 is 15, the length 2 is 15, the terminal device determines that the number of uplink transmission resources corresponding to the length 1 is 0 according to the relation (3), determines that the number of uplink transmission resources corresponding to the length 2 is 2 according to the relation (4), and as shown in fig. 4, the terminal device determines the symbols 12 to 13 in slot (n +1) and the symbols 0 to 12 in slot (n +2) as uplink transmission resources corresponding to the first transmission, and determines the symbols 13 in slot (n +1) and the symbols 0 to 13 in slot (n +2) as uplink transmission resources corresponding to the second transmission. It can be seen that the lengths of the uplink transmission resources respectively determined for the two transmissions both satisfy length 2.

For another example, m is 3, N₁＝4，N₂When the length is 28, the length 1 is 11, the length 2 is 10, the terminal device determines that the number of uplink transmission resources corresponding to the length 1 is 2 according to the relation (3), and determines that the number of uplink transmission resources corresponding to the length 2 is 1 according to the relation (4), as shown in fig. 5, the terminal device may determine the symbols 10 to 13 in slot (n +1) and the symbols 0 to 6 in slot (n +2) as the uplink transmission resources corresponding to the first transmission, and may determine the slot (n +1) as the uplink transmission resources corresponding to the first transmission, and determine the slot (n +2)And determining symbols 7 to 13 in the slot (n +2) and symbols 0 to 3 in the slot (n +3) as uplink transmission resources corresponding to the second transmission, and determining symbols 4 to 13 in the slot (n +3) as uplink transmission resources corresponding to the third transmission. It can be seen that the length of the uplink transmission resource determined for the first transmission and the second transmission satisfies length 1, and the length of the uplink transmission resource determined for the third transmission satisfies length 2.

Based on the above technical solution, when the uplink transmission resource configured by the network device for the terminal device cannot be divided by the transmission number m, the resource length satisfying an integer can still be obtained according to the above relational expression (1) and relational expression (2).

In other implementations, only one resource length may be determined, for example, the resource length may satisfy the relation (5), in which case, it means that the terminal device determines that lengths of any two uplink transmission resources in the m uplink transmission resources are equal to each other, and are both l for m transmissions.

l＝(N₁+N₂)/m (5)

Mode 2

The terminal equipment determines the first 14 symbols in the uplink transmission resources as the uplink transmission resources corresponding to the first transmission, and determines the remaining uplink symbols in the uplink transmission resources as the uplink transmission resources corresponding to other transmissions except the first transmission.

In one implementation, two resource lengths may be determined first, which are respectively denoted as length 3 and length 4, for example, length 3 and length 4 respectively satisfy relational expression (6) and relational expression (7), and the terminal device may determine m-1 uplink transmission resources for m-1 transmissions according to length 3 and length 4, for example, the length of the uplink transmission resource that the terminal device may determine for some transmissions in m-1 transmissions satisfies length 3, and the length of the uplink transmission resource that the terminal device determines for the other transmissions in m-1 transmissions satisfies length 3.

The terminal device may determine the number of uplink transmission resources satisfying length 3 and the number of uplink transmission resources satisfying length 4 according to relation (8) and relation (9):

mod(N₁+N₂-14，m-1) (8)

m-1-mod(N₁+N₂-14，m-1) (9)

for example, m is 3, N₁＝2，N₂When the length is 28, the length 3 is 8, the length 4 is 8, the terminal device determines that the number of uplink transmission resources corresponding to the length 3 is 0 according to the relation (8), determines that the number of uplink transmission resources corresponding to the length 4 is 2 according to the relation (9), as shown in fig. 6, the terminal device determines the symbols 12 to 13 in slot (n +1) and the symbols 0 to 11 in slot (n +2) as uplink transmission resources corresponding to the first transmission, determines the symbols 12, 13 and 0 to 5 in slot (n +3) in slot (n +2) as uplink transmission resources corresponding to the second transmission, and determines the symbols 6 to 13 in slot (n +3) as uplink transmission resources corresponding to the third transmission. It can be seen that the length of the uplink transmission resource determined for the first transmission is 14, and the lengths of the uplink transmission resources determined for the second transmission and the third transmission both satisfy length 4.

For another example, m is 3, N₁＝3，N₁When the length is 28, the length 3 is 9, the length 4 is 8, the terminal device determines that the number of uplink transmission resources corresponding to the length 3 is 1 according to the relation (8), and determines that the number of uplink transmission resources corresponding to the length 4 is 1 according to the relation (9), as shown in fig. 7, the terminal device may determine, as the uplink transmission resource corresponding to the first transmission, the symbol 11 to the symbol 13 in the slot (n +1) and the symbol 0 to the symbol 10 in the slot (n +2), determine, as the uplink transmission resource corresponding to the second transmission, the symbol 11 to the symbol 13 in the slot (n +2) and the symbol 0 to the symbol 5 in the slot (n +3), and determine, as the uplink transmission resource corresponding to the third transmission, the symbol 6 to the symbol 13 in the slot (n + 3). It can be seen that the length of the uplink transmission resource determined for the first transmission is 1And 4, the length of the uplink transmission resource determined for the second transmission meets the length 3, and the length of the uplink transmission resource determined for the third transmission meets the length 4.

Based on the above technical solution, when the uplink transmission resource configured by the network device for the terminal device cannot be divided by the transmission number m-1, the resource length satisfying an integer can still be obtained according to the above relational expression (6) and relational expression (7).

In other implementations, only one resource length may be determined, for example, the resource length may satisfy the relation (10), in this case, it means that the terminal device determines that lengths of any two uplink transmission resources in m-1 uplink transmission resources are equal to each other, and are both l, for m-1 transmissions.

l＝(N₁+N₂-14)/(m-1) (10)

Mode 3

The terminal equipment determines 14 x (m-1) uplink symbols in the uplink transmission resource as the uplink transmission resource corresponding to the (m-1) transmission, allocates 14 uplink symbols for each transmission in the m-1 transmission, and determines the remaining uplink symbols of the uplink transmission resource as the uplink transmission resource corresponding to the mth transmission.

For example, m is 3, N₁＝4，N₂As shown in fig. 8, the terminal device may determine, as the uplink transmission resource corresponding to the first transmission, symbols 10 to 13 in slot (n +1) and symbols 0 to 9 in slot (n +2), determine, as the uplink transmission resource corresponding to the second transmission, symbols 10 to 13 in slot (n +2) and symbols 0 to 9 in slot (n +3), and determine, as the uplink transmission resource corresponding to the third transmission, symbols 10 to 13 in slot (n + 3).

Mode 4

And the terminal equipment determines the uplink symbols in the initial time slot and 14 symbols in the next time slot which is later than the initial time slot in terms of time as uplink transmission resources corresponding to the first transmission, and determines the residual uplink symbols of the uplink transmission resources as uplink transmission resources corresponding to the second transmission. In other words, in addition to determining the uplink symbol in the starting timeslot as the uplink transmission resource corresponding to the first transmission, the terminal device also determines 14 symbols in a next timeslot later than the starting timeslot as the uplink transmission resource corresponding to the first transmission, that is, the uplink symbol in the starting timeslot and the 14 symbols in the next timeslot later than the starting timeslot together constitute the uplink transmission resource corresponding to the first transmission.

For example, m is 2, N₁＝4，N₂As shown in fig. 9, the terminal device may determine, as the uplink transmission resource corresponding to the first transmission, the symbol 10 to the symbol 13 in the slot (n +1) and the symbol 0 to the symbol 13 in the slot (n +2), and determine, as the uplink transmission resource corresponding to the second transmission, the symbol 0 to the symbol 13 in the slot (n + 3).

Mode 5

And the terminal equipment determines the uplink symbol in the initial time slot as the uplink transmission resource corresponding to the first transmission.

For example, m is 1, N₁＝4，N₂As shown in fig. 10, the terminal device may determine symbols 10 to 13 in slot (n +1) as the uplink transmission resource corresponding to the first transmission, as illustrated in fig. 28.

Mode 6

And the terminal equipment determines the uplink symbols in the initial time slot and all the uplink symbols in at least one time slot which is later than the initial time slot in terms of time as uplink transmission resources corresponding to the first transmission.

For example, m is 1, N₁＝4，N₂As shown in fig. 11, the terminal device may determine, as the uplink transmission resource corresponding to the first transmission, symbols 10 to 13 in slot (n +1), symbols 0 to 13 in slot (n +2), and symbols 0 to 13 in slot (n + 3).

In a specific implementation, the terminal device may determine m uplink transmission resources for m transmissions according to any one of the modes 1 to 6. In one implementation, the terminal device may be configured with a manner for determining m uplink transmission resources in advance, in other words, the manner for determining m uplink transmission resources by the terminal device is determined when the terminal device leaves the factory; or, in another implementation manner, the network device may instruct, through DCI, the terminal device to determine m uplink transmission resources according to one of the manners 1 to 6, which is not limited in this embodiment of the present invention.

For example, the network device may indicate, to the terminal device through the DCI in step 230, a manner of determining m uplink transmission resources. In other words, the network device may indicate the terminal device with the DCI in step 230, that is, the number m of transmissions, and also indicate the manner for determining m uplink transmission resources to the terminal device,

for example, the network device may jointly indicate the transmission number m and determine the manner of m uplink transmission resources through one field in the DCI, for example, jointly indicate the transmission number m and determine the manner of m uplink transmission resources through a field corresponding to two bits, a correspondence between the transmission number m and the manner of determining m uplink transmission resources and a bit value may be as shown in table one, and the terminal device may respectively determine the transmission number m and determine the manner of m uplink transmission resources according to the correspondence between the transmission number m and the manner of determining m uplink transmission resources and the field shown in table one.

Watch 1

For example, the network device may respectively indicate the transmission times m and the manner of determining m uplink transmission resources through different fields in the DCI, for example, one field is used to indicate the transmission times m, another field is used to indicate the manner of determining m uplink transmission resources, a correspondence between the transmission times m and the field 1 is shown in table two, a correspondence between the manner of determining m uplink transmission resources and the field 2 may be shown in table three, and the terminal device may determine the transmission times m according to the correspondence between the transmission times m and the field 1 shown in table two, and acquire the manner of determining m uplink transmission resources according to the correspondence between the manner of determining m uplink transmission resources and the field 2 shown in table three.

Watch two

Field 1	Number of transmissions m
		00	2
01	3
		10	4
11	5

Watch III

In addition, the number of transmission times m and the manner of determining m uplink transmission resources may also be indicated to the terminal device by the network device through different DCI, which is not limited in this embodiment of the present application.

Step 260, m RVs are generated.

The terminal device determines m uplink transmission resources in step 250, and in step 260, the terminal device may generate m RVs.

When generating the RV, the terminal device needs to determine the TBS corresponding to the RV, and the terminal device may determine the TBS according to m resource lengths corresponding to m uplink transmission resources. For example, the terminal device may determine the TBS according to the maximum resource length of the m resource lengths, where the maximum resource length may be, for example, the length of an uplink transmission resource used for transmitting the first RV, or the terminal device may determine the TBS according to the average resource length of the m resource lengths. And the terminal equipment generates m RVs of the original information according to the TBS. For example, when m is 4, the terminal device generates four RVs of the same original information, which are respectively denoted as RV0, RV1, RV2, and RV 3.

Step 270, the terminal device sequentially sends m RVs of the original information to the network device in the m uplink transmission resources.

For example, the four RV transmission orders of RV0, RV1, RV2, and RV3 are RV0, RV2, RV3, and RV1, that is, the terminal device sequentially transmits RV0, RV2, RV3, and RV1 to the network device.

In a specific implementation, the terminal device may transmit only the temporally earliest one of the m RVs, for example, only RV0 of RV0, RV2, RV3, and RV1, and when the terminal device transmits only the temporally earliest one of the m RVs, the terminal device may determine the uplink transmission resource only for the earliest RV, which is not limited in this embodiment of the present invention.

It should be noted that, for different information indicated by DCI in the method 200, in a specific implementation, the different information may be indicated at least partially by the same DCI, or may be indicated by different DCIs; for different information indicated by the RRC in the method 200, the different information may be indicated at least partially by the same RRC in a specific implementation, or may be indicated by different RRC; in addition, different information indicated by DCI in the method 200 may also be indicated by RRC in specific implementation, which is not limited in this embodiment of the present invention.

Fig. 12 is a schematic interaction diagram of a communication method 300 provided by an embodiment of the present application. Each step of the method 300 is explained below.

In the embodiment of the present application, the method 300 is described by taking a terminal device and a network device as an example of an execution subject for executing the method 200. By way of example and not limitation, the execution subject of the execution method 300 may also be a chip corresponding to the terminal device and a chip corresponding to the network device.

In step 301, the network device sends a first DCI, where first indication information in the first DCI indicates a first uplink transmission resource, the first uplink transmission resource is used to transmit at least one RV of original information, the first uplink transmission resource includes an uplink symbol in a first time slot, the first time slot is an earliest time slot in the first uplink transmission resource, the first time slot further includes a downlink symbol, and the downlink symbol is earlier in time than the uplink symbol. Accordingly, the terminal device receives the first DCI.

Illustratively, the first indication information indicates a start symbol of the first uplink transmission resource and a length of the first uplink transmission resource, or the first indication information indicates a start symbol and a termination symbol of the first uplink transmission resource, or the first indication information indicates a start symbol of the first uplink transmission resource and a length of an uplink symbol occupied by the first uplink transmission resource in the first slot, the start symbol is used for determining a start position of the first uplink transmission resource in the first slot, and the termination symbol is used for determining a termination position of the first uplink transmission resource.

The terminal device may determine, according to the first indication information in the first DCI, a first uplink transmission resource configured for the terminal device by the network device. For a method for determining, by a terminal device, a first uplink transmission resource configured for the terminal device by a network device, please refer to the detailed description in any one of the modes 1 to 3 in step 240 in the method 200, and for brevity, no further description is given here. The first DCI here corresponds to the DCI in any one of step 240, mode 1 to mode 3.

Exemplarily, the first indication information in the first DCI indicates a first identifier, where the first identifier corresponds to a start symbol of the first uplink transmission resource and a resource length, where the start symbol is used to determine a start position of the first uplink transmission resource in a first slot, and the resource length is a resource length occupied by the first uplink transmission resource in the first slot, or the resource length is a length of the first uplink transmission resource.

Here, the first DCI may correspond to the DCI in mode 4 or mode 5 in step 240, the first identifier may correspond to an index number configured for the terminal device by the network device in mode 4 or mode 5, and for the way in which the terminal device determines the first uplink transmission resource according to the first identifier, reference is made to the specific description in mode 4 or mode 5 in step 240, which is not described herein again for brevity.

The first uplink transmission resource in step 301 corresponds to the uplink transmission resource configured by the network device for the terminal device in step 240, and the first time slot corresponds to the starting time slot in step 240.

Exemplarily, the corresponding relationship between the first identifier and the start symbol of the first uplink transmission resource and the resource length may be configured by the network device through the RRC, for example, the network device may configure multiple sets of parameters to the terminal device through the RRC, where each set of parameters at least includes the index number, the start symbol, and the resource length, and at this time, the method 300 may further include:

step 302, the network device sends an RRC signaling, where the RRC signaling includes at least two sets of parameters, each set of parameters includes an identifier, a starting symbol of the first uplink transmission resource, and a resource length, and at least two identifiers corresponding to the at least two sets of parameters include the first identifier.

For a detailed description about configuring multiple sets of parameters for the terminal device by the network device through the RRC, please refer to the detailed description in step 240, and for brevity, details are not described here again. The RRC here corresponds to the RRCI in scheme 4 or scheme 5 in step 240.

In step 303, the network device sends a second DCI to the terminal device, where second indication information in the second DCI indicates the number of uplink symbols of the second uplink transmission resource. Accordingly, the terminal device receives the second DCI.

In step 304, the network device sends a third DCI to the terminal device, where third indication information in the third DCI indicates an association relationship between the second uplink transmission resource and the number of transmission times m and the number of uplink symbols included in the first uplink transmission resource. Accordingly, the terminal device receives the third DCI.

In step 305, the network device sends a fourth DCI to the terminal device, where fourth indication information in the fourth DCI indicates the transmission number m. Accordingly, the terminal device receives the fourth DCI.

In step 306, the terminal device determines the second uplink transmission resource in the first uplink transmission resource, where the second uplink transmission resource at least includes an uplink symbol in the first timeslot.

Exemplarily, the second uplink transmission resource further comprises at least one time slot later in time than the first time slot.

Illustratively, the second uplink transmission resource includes all uplink symbols of the first slot and all uplink symbols of the at least one slot.

In one implementation, the terminal device may determine, according to the second indication information in the second DCI, the second uplink transmission resource in the first uplink transmission resource.

Specifically, the second DCI may indicate a manner of determining m uplink transmission resources, for example, in any one of manner 2 to manner 6 in step 250, the manner of determining m uplink transmission resources is indicated to the terminal device, the number of uplink symbols of the second uplink transmission resource is indicated to the terminal device, and the terminal device determines the second uplink transmission resource in the first uplink transmission resource according to the number of uplink symbols of the second uplink transmission resource.

For a specific implementation of indicating the number of uplink symbols of the second uplink transmission resource to the terminal device by indicating the manner of determining m uplink transmission resources to the terminal device, please refer to the related description in any one of manner 2 to manner 6 in step 250, and for brevity, no further description is given here. The second uplink transmission resource corresponds to the uplink transmission resource corresponding to the first transmission in any one of the modes 2 to 6, and the second DCI corresponds to the DCI used for indicating any one of the modes 2 to 6 in step 250.

In addition, the network device may directly indicate, through the second DCI, the number of uplink symbols of the second uplink transmission resource to the terminal device, which is not limited in this embodiment of the present application.

In another implementation, the terminal device may determine, according to the third indication information in the third DCI, the second uplink transmission resource in the first uplink transmission resource.

Specifically, the third DCI may indicate a manner of determining m uplink transmission resources, for example, in any one of manner 1 to manner 6 in step 250, by indicating the manner of determining m uplink transmission resources to the terminal device, indicating to the terminal device an association relationship between the number of uplink symbols of the second uplink transmission resource and the number of transmission times m and the number of uplink symbols included in the first uplink transmission resource, and the terminal device determining the second uplink transmission resource in the first uplink transmission resource according to the number of transmission times m based on the association relationship between the second uplink transmission resource and the number of transmission times m and the number of uplink symbols of the first uplink transmission resource.

For a specific implementation of indicating, to the terminal device, the association relationship between the second uplink transmission resource and the number of transmission times m and the number of uplink symbols included in the first uplink transmission resource by indicating the manner of determining m uplink transmission resources to the terminal device, please refer to the related description in any one of manner 1 to manner 6 in step 250, and for brevity, details are not described here again. The second uplink transmission resource corresponds to the uplink transmission resource corresponding to the first transmission in any one of the modes 1 to 6, and the third DCI corresponds to the DCI used for indicating any one of the modes 1 to 6 in step 250.

In addition, the network device may indicate the transmission number m to the terminal device through the second DCI or the third DCI. In other words, the network device may indicate the transmission time m to the terminal device through the second DCI or the third DCI, and also indicate the manner of determining the m uplink transmission resources to the terminal device, or the transmission time m and the manner of determining the m uplink transmission resources may also be indicated to the terminal device through different DCIs by the network device.

In step 307, the terminal device determines a first resource length according to at least one uplink transmission resource corresponding to at least one RV.

In step 308, the terminal device determines a transport block size TBS corresponding to the original information according to the first resource length.

In step 309, the terminal device generates a first RV according to the TBS, where the first RV is one RV of the at least one RV.

Illustratively, the first resource length is a length of an uplink transmission resource with a largest length among at least one uplink transmission resource corresponding to the at least one RV.

Illustratively, the length of the uplink transmission resource with the largest length is the result of rounding the quotient obtained by dividing the number of uplink symbols in the first uplink transmission resource by the number of transmission times m.

For the specific implementation of step 303 to step 305, refer to the related description in step 260, and for brevity, no further description is provided here. Wherein, at least one RV corresponds to m RVs in step 260, at least one uplink transmission resource corresponds to m resource lengths of the m uplink transmission resources in step 260, and the first RV corresponds to RV0 in step 260.

In step 310, the terminal device sends the first RV on the second uplink transmission resource.

In step 311, the terminal device determines a third uplink transmission resource in the first uplink transmission resource according to the number of uplink symbols of the first uplink transmission resource and the transmission frequency m, where the third uplink transmission resource includes a plurality of uplink symbols later in time than the second uplink transmission resource.

In step 312, the terminal device sends a second RV on the third uplink transmission resource, where the second RV is any one of the at least one RV except for the first RV.

Specifically, the terminal device may further determine a third uplink transmission resource in the first uplink transmission resource, where the third uplink transmission resource is later in time than the second uplink transmission resource, and send the second RV to the network device on the third uplink transmission resource.

For specific implementation of the terminal device determining the third uplink transmission resource in the first uplink transmission resource, refer to the relevant descriptions in the mode 1 to the mode 6 in step 250, and for brevity, no further description is given here. The third uplink transmission resource corresponds to any one of the m uplink transmission resources in the modes 1 to 6 in the step 250, except for the uplink transmission resource corresponding to the first transmission, and the second RV is any one of the m RVs, except for the first RV.

Illustratively, the method 300 may further include the related descriptions of the steps 210 and 220 in the method 200, and the description thereof is omitted here for brevity.

It is to be understood that, in order to implement the functions in the above embodiments, the network device and the terminal device include hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and method 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 performed as hardware or computer software driven hardware depends on the particular application scenario and design constraints imposed on the solution.

Fig. 13 and 14 are schematic structural diagrams of a possible communication device provided in an embodiment of the present application. These communication devices can be used to implement the functions of the terminal device or the network device in the above method embodiments, so that the beneficial effects of the above method embodiments can also be achieved. In the embodiment of the present application, the communication apparatus may be the terminal device 130 or the terminal device 140 shown in fig. 1, may also be the radio access network device 120 shown in fig. 1, and may also be a module (e.g., a chip) applied to the terminal device or the network device.

As shown in fig. 13, the communication device 400 includes a processing unit 410 and a transceiving unit 420. The communication apparatus 400 is used to implement the functions of the terminal device or the network device in the method embodiments shown in the above figures.

When the communication apparatus 400 is used to implement the functions of the terminal device in the method embodiment shown in the figure: the transceiving unit 420 is configured to receive a first DCI, where first indication information in the first DCI indicates the first uplink transmission resource, where the first uplink transmission resource is used to transmit at least one redundancy version RV of original information, the first uplink transmission resource includes an uplink symbol in a first time slot, the first time slot is an earliest time slot in the first uplink transmission resource, the first time slot further includes a downlink symbol, and the downlink symbol is earlier in time than the uplink symbol; the processing unit 410 is configured to determine the second uplink transmission resource in the first uplink transmission resource, where the second uplink transmission resource at least includes an uplink symbol in the first time slot; the transceiving unit 420 is further configured to send a first RV on the second uplink transmission resource, where the first RV is one RV of the at least one RV.

When the communication apparatus 400 is used to implement the functions of the network device in the method embodiment shown in the figure: the processing unit 410 is configured to generate a first DCI, where first indication information in the first DCI indicates a first uplink transmission resource; the transceiver 420 is configured to send the first DCI, where the first uplink transmission resource is used to transmit at least one redundancy version RV of original information, and the first uplink transmission resource includes an uplink symbol in a first time slot, where the first time slot is a temporally earliest time slot in the first uplink transmission resource, and the first time slot further includes a downlink symbol, and the downlink symbol is earlier in time than the uplink symbol; the transceiving unit 420 is further configured to receive a first RV on a second uplink transmission resource, where the first RV is one RV in the at least one RV, and the second uplink transmission resource at least includes an uplink symbol in the first timeslot.

More detailed descriptions about the processing unit 410 and the transceiver unit 420 can be directly obtained by referring to the related descriptions in the method embodiment shown in the figure, which are not repeated herein.

As shown in fig. 14, the communication device 500 includes a processor 510 and an interface circuit 520. Processor 510 and interface circuit 520 are coupled to each other. It is understood that the interface circuit 520 may be a transceiver or an input-output interface. Optionally, the communication device 500 may further include a memory 530 for storing instructions executed by the processor 510 or for storing input data required by the processor 510 to execute the instructions or for storing data generated by the processor 510 after executing the instructions.

When the communication device 500 is used to implement the method shown in the figure, the processor 510 is configured to perform the functions of the processing unit 410, and the interface circuit 520 is configured to perform the functions of the transceiving unit 420.

When the communication device is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiment. The terminal device chip receives information from other modules (such as a radio frequency module or an antenna) in the terminal device, wherein the information is sent to the terminal device by the network device; or, the terminal device chip sends information to other modules (such as a radio frequency module or an antenna) in the terminal device, where the information is sent by the terminal device to the network device.

When the communication device is a chip applied to a network device, the network device chip implements the functions of the network device in the above method embodiments. The network device chip receives information from other modules (such as a radio frequency module or an antenna) in the network device, wherein the information is sent to the network device by the terminal device; alternatively, the network device chip sends information to other modules (such as a radio frequency module or an antenna) in the network device, and the information is sent by the network device to the terminal device.

In combination with the above, the present application also provides the following embodiments:

embodiment 1, a communication method, comprising:

receiving first Downlink Control Information (DCI), wherein first indication information in the DCI indicates a first uplink transmission resource, the first uplink transmission resource is used for transmitting at least one Redundancy Version (RV) of original information, the first uplink transmission resource comprises an uplink symbol in a first time slot, the first time slot is the earliest time slot in the first uplink transmission resource, the first time slot further comprises a downlink symbol, and the downlink symbol is earlier in time than the uplink symbol;

determining the second uplink transmission resource in the first uplink transmission resource, wherein the second uplink transmission resource at least comprises an uplink symbol in the first time slot;

and transmitting a first RV on the second uplink transmission resource, wherein the first RV is one RV in the at least one RV.

Embodiment 2 the method according to embodiment 1, wherein the second uplink transmission resource further comprises at least one time slot later in time than the first time slot.

Embodiment 3, the method according to

embodiment

1 or 2, wherein the first indication information indicates a start symbol and a length of the first uplink transmission resource, or the first indication information indicates a start symbol and a stop symbol of the first uplink transmission resource, or the first indication information indicates a start symbol and a length of an uplink symbol occupied by the first uplink transmission resource in the first slot, the start symbol is used to determine a start position of the first uplink transmission resource in the first slot, and the stop symbol is used to determine a stop position of the first uplink transmission resource.

Embodiment 4, the method according to

embodiment

1 or 2, wherein the first indication information indicates a first identifier, the first identifier corresponds to a start symbol of the first uplink transmission resource and a resource length, the start symbol is used to determine a start position of the first uplink transmission resource in the first slot, and the resource length is a length of a symbol occupied by the first uplink transmission resource in the first slot, or the resource length is a length of the first uplink transmission resource.

Embodiment 5 the method of embodiment 4, wherein the method further comprises:

receiving a Radio Resource Control (RRC) signaling, wherein the RRC signaling comprises at least two groups of parameters, each group of parameters comprises an identifier, a starting symbol of the first uplink transmission resource and the resource length, and at least two identifiers corresponding to the at least two groups of parameters comprise the first identifier.

Embodiment 6 and the method according to any of embodiments 1 to 5, wherein the determining a second uplink transmission resource in the first uplink transmission resource includes:

receiving a second DCI, wherein second indication information in the second DCI indicates the number of uplink symbols of the second uplink transmission resource;

and determining the second uplink transmission resource in the first uplink transmission resource according to the second indication information.

Embodiment 7 and the method according to any of embodiments 1 to 6, wherein the determining a second uplink transmission resource in the first uplink transmission resource includes:

and determining the second uplink transmission resource in the first uplink transmission resource according to the transmission times m based on the incidence relation between the second uplink transmission resource and the transmission times m and the number of uplink symbols of the first uplink transmission resource.

Embodiment 8 the method of embodiment 7, wherein the method further comprises:

and receiving third DCI, wherein third indication information in the third DCI indicates the incidence relation between the number of the uplink symbols of the second uplink transmission resource and the number of transmission times m and the number of the uplink symbols included in the first uplink transmission resource.

Embodiment 9 the method of any of embodiments 1-8, wherein the method further comprises:

and receiving fourth DCI, wherein fourth indication information in the fourth DCI indicates the transmission times m.

Embodiment 10 and the method according to any of embodiments 1 to 9, wherein the second uplink transmission resource includes all uplink symbols of the first slot and all uplink symbols of the at least one slot.

Embodiment 11, the method of any of embodiments 1-10, wherein the method further comprises:

determining a third uplink transmission resource in the first uplink transmission resource according to the number of uplink symbols of the first uplink transmission resource and the transmission times m, wherein the third uplink transmission resource comprises a plurality of uplink symbols which are later than the second uplink transmission resource in time;

and transmitting a second RV on the third uplink transmission resource, wherein the second RV is any one RV except the first RV in the at least one RV.

Embodiment 12 the method of any of embodiments 1-11, wherein the method further comprises:

determining a first resource length according to at least one uplink transmission resource corresponding to the at least one RV;

determining a Transport Block Size (TBS) corresponding to the original information according to the first resource length;

and generating the first RV according to the TBS.

Embodiment 13 and the method according to embodiment 12, wherein the first resource length is a length of an uplink transmission resource with a largest length among at least one uplink transmission resource corresponding to the at least one RV.

Embodiment 14 and the method according to embodiment 13, wherein the length of the uplink transmission resource with the largest length is a result of rounding a quotient obtained by dividing the number of uplink symbols in the first uplink transmission resource by the number of transmission times m.

Embodiment 15, a communication method, comprising:

generating first DCI, wherein first indication information in the first DCI indicates first uplink transmission resources;

sending the first DCI, where the first uplink transmission resource is used to transmit at least one redundancy version RV of original information, where the first uplink transmission resource includes an uplink symbol in a first time slot, the first time slot is a temporally earliest time slot in the first uplink transmission resource, and the first time slot further includes a downlink symbol, and the downlink symbol is temporally earlier than the uplink symbol;

receiving a first RV on a second uplink transmission resource, wherein the first RV is one RV in the at least one RV, and the second uplink transmission resource at least comprises an uplink symbol in the first time slot.

Embodiment 16 the method of embodiment 15, wherein the second uplink transmission resource further comprises at least one time slot later in time than the first time slot.

Embodiment 17, the method according to embodiment 15 or embodiment 16, wherein the first indication information indicates a start symbol of the first uplink transmission resource and a length of the first uplink transmission resource, or the first indication information indicates a start symbol and a stop symbol of the first uplink transmission resource, or the first indication information indicates a start symbol of the first uplink transmission resource and a length of an uplink symbol occupied by the first uplink transmission resource in the first slot, the start symbol is used to determine a start position of the first uplink transmission resource in the first slot, and the stop symbol is used to determine a stop position of the first uplink transmission resource.

Embodiment 18, the method according to embodiment 15 or embodiment 16, wherein the first indication information indicates a first identifier, the first identifier corresponds to a start symbol of the first uplink transmission resource and a resource length, the start symbol is used to determine a start position of the first uplink transmission resource in the first slot, and the resource length is a length of a symbol occupied by the first uplink transmission resource in the first slot, or the resource length is a length of the first uplink transmission resource.

Embodiment 19 the method of embodiment 18, wherein the method further comprises:

and sending a Radio Resource Control (RRC) signaling, wherein the RRC signaling comprises at least two groups of parameters, each group of parameters comprises an identifier, a starting symbol of the first uplink transmission resource and the resource length, and at least two identifiers corresponding to the at least two groups of parameters comprise the first identifier.

Embodiment 20, the method of any of embodiments 15-19, wherein the method further comprises:

and sending a second DCI, wherein second indication information in the second DCI indicates the number of uplink symbols of the second uplink transmission resource.

Embodiment 21, the method of any of embodiments 15-20, wherein the method further comprises:

and sending third DCI, wherein third indication information in the third DCI indicates the incidence relation between the number of the uplink symbols of the second uplink transmission resource and the number m of transmission times and the number of the uplink symbols included in the first uplink transmission resource.

Embodiment 22 the method of any of embodiments 15 to 21, wherein the method further comprises:

Embodiment 23 and the method according to any of embodiments 15 to 22, wherein the second uplink transmission resource includes all uplink symbols of the first slot and all uplink symbols of the at least one slot.

Embodiment 24, the method of any of embodiments 15 to 23, wherein the method further comprises:

receiving a second RV on a third uplink transmission resource, wherein the second RV is any one RV except the first RV in the at least one RV, and the third uplink transmission resource comprises a plurality of uplink symbols which are later than the second uplink transmission resource in time.

Embodiment 25, a communication device comprising means for performing the method of any of embodiments 1-14.

Embodiment 26, a communication device comprising means for performing the method of any of embodiments 15-24.

Embodiment 27, a communication device comprising a processor and an interface circuit, the interface circuit configured to receive and transmit signals from or send signals to a communication device other than the communication device, the processor configured to implement the method according to any one of embodiments 1 to 14 by logic circuits or executing code instructions.

Embodiment 28, a communication device comprising a processor and an interface circuit, wherein the interface circuit is configured to receive and transmit signals from or send signals to other communication devices except the communication device, and the processor is configured to implement the method according to any one of embodiment 15 to embodiment 24 by logic circuits or executing code instructions.

Embodiment 29 is a computer-readable storage medium, wherein the storage medium has stored therein a computer program or instructions which, when executed by a communication device, implement the method according to any one of embodiments 1 to 14.

Embodiment 30, a computer-readable storage medium, wherein the storage medium has stored therein a computer program or instructions which, when executed by a communication device, implement the method according to any one of embodiments 15 to 24.

It is understood that the Processor in the embodiments of the present application may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), other Programmable logic devices (Programmable Gate Array), a transistor logic device, a hardware component, or any combination thereof. The general purpose processor may be a microprocessor, but may be any conventional processor.

The method steps in the embodiments of the present application may be implemented by hardware, or may be implemented by software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash Memory, Read-only Memory (ROM), Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), registers, a hard disk, a removable hard disk, a 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. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in a network device or a terminal device. Of course, the processor and the storage medium may reside as discrete components in a network device or a terminal device.

In the above embodiments, the implementation may be wholly or partially realized by 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 programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer program or instructions may be stored in or transmitted over a computer-readable storage medium. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server that integrates one or more available media. The usable medium may be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape; or an optical medium, such as a DVD; it may also be a semiconductor medium, such as a Solid State Disk (SSD).

In the embodiments of the present application, unless otherwise specified or conflicting with respect to logic, the terms and/or descriptions in different embodiments have consistency and may be mutually cited, and technical features in different embodiments may be combined to form a new embodiment according to their inherent logic relationship.

In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. In the description of the text of the present application, the character "/" generally indicates that the former and latter associated objects are in an "or" relationship; in the formula of the present application, the character "/" indicates that the preceding and following related objects are in a relationship of "division".

It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of the present application. The sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of the processes should be determined by their functions and inherent logic.

Claims

1. A method of communication, comprising:

determining a second uplink transmission resource in the first uplink transmission resource, wherein the second uplink transmission resource at least comprises an uplink symbol in the first time slot;

2. The method of claim 1, wherein the second uplink transmission resource further comprises at least one time slot later in time than the first time slot.

3. The method according to claim 1 or 2, wherein the first indication information indicates a start symbol of the first uplink transmission resource and a length of the first uplink transmission resource, or the first indication information indicates a start symbol of the first uplink transmission resource and a stop symbol, or the first indication information indicates a start symbol of the first uplink transmission resource and a length of an uplink symbol occupied by the first uplink transmission resource in the first slot, a start symbol is used for determining a start position of the first uplink transmission resource in the first slot, and a stop symbol is used for determining a stop position of the first uplink transmission resource.

4. The method according to claim 1 or 2, wherein the first indication information indicates a first identifier, the first identifier corresponds to a starting symbol of the first uplink transmission resource and a resource length, the starting symbol is used to determine a starting position of the first uplink transmission resource in the first slot, and the resource length is a length of a symbol occupied by the first uplink transmission resource in the first slot or the resource length is a length of the first uplink transmission resource.

5. The method of claim 4, further comprising:

6. The method according to any of claims 1 to 5, wherein the determining the second uplink transmission resource in the first uplink transmission resource comprises:

7. The method according to any of claims 1 to 6, wherein the determining the second uplink transmission resource in the first uplink transmission resource comprises:

8. The method of claim 7, further comprising:

9. The method according to any one of claims 1 to 8, further comprising:

10. The method according to any of claims 2 to 9, wherein the second uplink transmission resource comprises all uplink symbols of the first slot and all uplink symbols of the at least one slot.

11. The method according to any one of claims 1 to 10, further comprising:

12. The method according to any one of claims 1 to 11, further comprising:

and generating the first RV according to the TBS.

13. The method of claim 12, wherein the first resource length is a length of a longest uplink transmission resource among at least one uplink transmission resource corresponding to the at least one RV.

14. The method according to claim 13, wherein the length of the uplink transmission resource with the largest length is an integer of a quotient obtained by dividing the number of uplink symbols in the first uplink transmission resource by the number of transmissions m.

15. A communications apparatus comprising means for performing the method of any of claims 1-14.

16. A communications device comprising a processor and interface circuitry for receiving and transmitting signals from or sending signals to other communications devices than the communications device, the processor being operable by logic circuitry or executing code instructions to implement the method of any of claims 1 to 14.

17. A computer-readable storage medium, in which a computer program or instructions are stored which, when executed by a communication apparatus, carry out the method of any one of claims 1 to 14.