CN111787613B

CN111787613B - Data transmission method, device and equipment

Info

Publication number: CN111787613B
Application number: CN201910270185.0A
Authority: CN
Inventors: 费永强; 郭志恒; 谢信乾
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2024-03-26
Anticipated expiration: 2039-04-04
Also published as: WO2020200193A1; CN111787613A

Abstract

The application provides a data transmission method, a device and equipment, wherein the method comprises the following steps: the terminal equipment receives first indication information from the network equipment, wherein the first indication information is used for indicating first resources reserved by the terminal equipment; the terminal equipment determines a third resource according to the first resource and the second resource, wherein the second resource is a resource for the terminal equipment to send uplink data, the third resource is a residual resource of the second resource except overlapping resources or related resources of the overlapping resources, and the overlapping resources are resources of the first resource overlapping with the second resource; and the terminal equipment transmits uplink data on the third resource. The method ensures that the terminal equipment determines the third resource for sending the uplink data through the reserved first resource and the allocated second resource, thereby effectively utilizing the transmission resource and improving the transmission efficiency and the reliability.

Description

Data transmission method, device and equipment

Technical Field

The present invention relates to the field of communications, and in particular, to a data transmission method, apparatus, and device.

Background

In a wireless communication system, such as a New Radio (NR) system, information interacted between a User Equipment (UE) and a base station (g Node B, gNB) is carried over a physical channel. Wherein, the data sent by the UE, that is, uplink data, can be generally carried through a physical uplink shared channel (physical uplink shared channel, PUSCH); the control information sent by the UE, i.e., uplink control information, may be generally carried through a physical uplink control channel (physical uplink control channel, PUCCH). In addition, the UE may also transmit sounding reference signals (sounding reference signal, SRS), and the gNB estimates the channel quality of the UE on different frequencies by receiving the SRS transmitted by the UE.

In wireless communication, for some deep coverage scenarios, such as cell edges, or basements, the path loss or penetration loss of the radio signal propagation is very serious, which may possibly cause that the gNB or the UE cannot receive the radio signal correctly, so coverage enhancement means often need to be considered, which is particularly important for uplink transmission, because the transmit power of the UE is often low, for example 23dBm, which is far lower than the transmit power of the gNB, for example, for a gNB with a bandwidth of 20MHz, the transmit power may reach 46dBm. Wherein, uplink transmission generally refers to UE sending information to the gNB, and downlink transmission generally refers to the gNB sending information to the UE.

One possible enhancement to improve the coverage performance of the uplink transmission is retransmission. For the case of uplink transmission, the gNB configures the UE for a certain number of repeated transmissions so that the UE repeatedly transmits data. Correspondingly, the gNB performs combination detection or demodulation on the data information, the control information or the SRS sent by the UE for many times, so that the detection performance or the demodulation performance is improved, and the coverage enhancement effect is achieved.

Currently, in NR, for uplink transmission, the gNB indicates that the UE repeats transmission 8 times at maximum. Wherein NR may support repeated transmission of frequency hopping, see fig. 1a, and repeated transmission of non-frequency hopping, see fig. 1b. Typically, a transmission is a transmission in one slot (slot); and for multiple repeated transmissions, the transmission is performed in multiple time slots, and the range of the used time-frequency resource is the same in each time slot. For example, in uplink scheduling, referring to fig. 1b, the gnb schedules the UE to transmit PUSCH by sending downlink control information (downlink control Information, DCI), where the DCI indicates that a time domain resource used when the UE first transmits includes a plurality of orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbols that are consecutive in one slot, and the frequency domain resource includes 4 consecutive Resource Blocks (RBs), then the UE also uses the same number and positions of OFDM symbols and RB resources in one slot to transmit PUSCH in subsequent repeated transmission.

In an ideal case, repeating 8 transmissions may obtain a signal coverage enhancement of a certain magnitude, with a theoretical gain of 9dB, but in practice the signal may need a larger enhancement, for example tens of dB, and thus may need to be increased to hundreds or thousands of times. However, since the "time-frequency resource range used in each time slot" is the same in NR, the "resources that can be allocated to one UE for repeated transmission are intersections of the available resources in each time slot" will result in a great limitation on the scheduling of resources for the UE to repeat uplink transmission.

Specifically, as shown in fig. 2, in the UE1 to UE5, only the UE1 needs to perform repeated transmission, when the base station schedules the UE1 to perform PUSCH repeated transmission, since it needs to be ensured that uplink resources of the PUSCH repeatedly transmitted by the UE1 do not overlap with uplink resources transmitted by other UE2 to UE5 to generate interference, an overlapping area cannot exist between PUSCH resources available to the UE1 and transmission resources of other UE in any time slot, so that uplink transmission resources of the UE1 are greatly limited, and an effective transmission rate of uplink transmission of the UE1 is reduced. In addition, the remaining free resources are underutilized, resulting in a lower resource utilization.

Disclosure of Invention

The application provides a data transmission method, a data transmission device and data transmission equipment, which can improve the efficiency of repeated transmission of PUSCH by UE and the utilization rate of residual idle resources.

Specifically, the application discloses the following technical scheme:

in a first aspect, an embodiment of the present application provides a data transmission method, where the method includes: the terminal equipment receives first indication information from the network equipment, wherein the first indication information is used for indicating first resources reserved by the terminal equipment; the terminal equipment determines a third resource according to the first resource and the second resource, wherein the second resource is a resource for the terminal equipment to send uplink data, the third resource is a residual resource of the second resource except overlapping resources or related resources of the overlapping resources, and the overlapping resources are resources of the first resource and the second resource; and the terminal equipment sends uplink data on the third resource.

The network equipment configures reserved resources in the uplink transmission process for the terminal equipment through the first indication information, so that the terminal equipment does not carry out uplink transmission on the reserved first resources and the overlapped resources of the allocated second resources or related resources of the overlapped resources, and the remaining resources of the second resources except the overlapped resources or related resources of the overlapped resources can be continuously used as uplink transmission, thereby effectively utilizing the transmission resources, avoiding the mutual overlapping of the transmission resources between the terminal equipment, improving the resource utilization rate when the repeated transmission times of the terminal equipment in the uplink transmission process are more, and improving the transmission efficiency and reliability.

With reference to the first aspect, in an implementation manner of the first aspect, the determining, by the terminal device, a third resource according to the first resource and the second resource includes: the terminal equipment determines the third resource according to the first resource, the second resource and the transmission mode of the uplink data, wherein the transmission mode of the uplink data is a conversion precoding transmission mode.

With reference to the first aspect, in another implementation manner of the first aspect, the determining, by the terminal device, a third resource according to the first resource and the second resource includes: the terminal equipment determines the third resource according to the first resource, the second resource and the transmission mode of uplink data, wherein the third resource is the residual resource of the second resource except the overlapped resource, and the transmission mode of the uplink data is a non-conversion precoding transmission mode. In the non-conversion precoding transmission mode, the terminal equipment can use discontinuous frequency domain units to transmit uplink data, so that all the remaining resources after the overlapped resources are removed are used as third resources for uplink transmission, and the resource utilization rate of repeatedly transmitting the uplink data is improved.

With reference to the first aspect, in a further implementation manner of the first aspect, the overlapping resources include at least one symbol in a time domain; wherein the related resources of the overlapping resources include the at least one symbol in a time domain and include all frequency domain resources corresponding to the at least one symbol in a frequency domain; the third resource is the remaining resource of the second resource excluding the related resource of the overlapping resource.

With reference to the first aspect, in a further implementation manner of the first aspect, the overlapping resource includes at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is the residual resource of the second resource except the related resource of the overlapped resource, and the related resource of the overlapped resource comprises all frequency domain units corresponding to the first symbol; and the fourth resource is a resource obtained by removing the overlapping resource from the second resource, wherein the fourth resource is a discontinuous frequency domain unit which is at least one frequency domain unit existing between the first frequency domain unit and the second frequency domain unit on the first symbol. All frequency domain units on the time domain symbol corresponding to the overlapped resource are not used as resources for transmitting uplink data by the terminal equipment, and all frequency domain units corresponding to the remaining time domain symbols are used for transmitting uplink data, so that continuity of the frequency domain units on any remaining symbol is ensured, and the terminal equipment ensures that the transmitting power of each time domain symbol is consistent when transmitting uplink data by utilizing the third resource. In addition, the method is simple and clear in the process of indicating the first resource and determining the third resource, and is easy to realize.

Optionally, the frequency domain unit includes a resource block or a resource block group.

With reference to the first aspect, in a further implementation manner of the first aspect, the overlapping resource includes at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is the residual resource of the second resource except related resources of overlapping resources, and the related resources of the overlapping resources comprise other frequency domain units except the first continuous frequency domain unit on the first symbol; the fourth resource is a resource obtained by removing the overlapping resource from the second resource, and the discontinuous frequency domain unit refers to at least one frequency domain unit existing between the first frequency domain unit and the second frequency domain unit on the first symbol; the first continuous frequency domain unit is the continuous frequency domain unit with the largest resource occupied by the first symbol in the fourth resource, or is the continuous frequency domain unit with the highest or lowest frequency on the first symbol in the fourth resource.

On at least one time domain symbol corresponding to the overlapped resource, if a frequency domain unit on the time domain symbol appears a discontinuous frequency domain unit, reserving the largest continuous frequency domain unit or the highest or lowest continuous frequency domain unit in the discontinuous frequency domain unit for transmitting uplink data, thereby not only ensuring the continuity of the frequency domain unit on any time domain symbol, but also improving the transmission efficiency of the uplink resource and the utilization rate of the residual resource.

Optionally, the first continuous frequency domain unit is one or more frequency domain units.

With reference to the first aspect, in a further implementation manner of the first aspect, the overlapping resource includes at least one second symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is the residual resource of the second resource except related resources of overlapping resources, and the related resources of the overlapping resources comprise the overlapping resources on the second symbol; and the fourth resource is a resource obtained by removing the overlapping resource from the second resource, wherein the fourth resource does not have a discontinuous frequency domain unit on the second symbol, and the discontinuous frequency domain unit refers to at least one frequency domain unit which is arranged between the first frequency domain unit and the second frequency domain unit on the second symbol.

On at least one time domain symbol corresponding to the overlapped resource, if the frequency domain unit on the time domain symbol is a continuous frequency domain unit, the continuous frequency domain unit is used for transmitting uplink data, so that the transmission efficiency of the uplink resource and the utilization rate of the residual resource are improved.

With reference to the first aspect, in a further implementation manner of the first aspect, the overlapping resource includes at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain, and a time unit where the first symbol is located is a first time unit; the third resource is the residual resource of the second resource except the related resource of the overlapped resource, the related resource of the overlapped resource comprises a first time unit where the first symbol is located in the time domain, and all frequency domain units corresponding to the first time unit are included in the frequency domain; the overlapping resources overlap with resources carrying the first reference signal in the first time unit, and/or the total number of symbols of the first symbols in the first time unit is greater than or equal to a first preset value, or the number of symbols of continuous first symbols in the first time unit is greater than or equal to a second preset value.

Optionally, the first time unit is a time slot or a subframe.

When the resource carrying the first reference signal has an intersection with the overlapping resource, and/or the total number of symbols of the corresponding first symbols of the overlapping resource is greater than or equal to a first preset value, or the number of symbols of the continuous first symbols in the first time unit is greater than or equal to a second preset value, the integrity of the first reference signal in the first time unit is ensured by adopting a mode that the first time unit where the first symbols are is not used for uplink data, so that the data demodulation performance in the first time unit is ensured, and the energy consumption waste caused by that the uplink data is still transmitted when the data in the first time unit cannot be demodulated correctly is avoided.

With reference to the first aspect, in a further implementation manner of the first aspect, the overlapping resource includes at least one second symbol in a time domain and at least one frequency domain unit in a frequency domain, and a time unit where the second symbol is located is a second time unit; the third resource is the residual resource of the second resource except the related resource of the overlapped resource, and the related resource of the overlapped resource comprises all frequency domain units corresponding to the second symbol on the frequency domain; wherein the overlapping resources do not overlap with resources carrying the first reference signal in the second time unit; and/or, the total number of symbols of the second symbols in the second time unit is smaller than a first preset value, or the maximum value of the number of symbols of the continuous second symbols in the second time unit is smaller than a second preset value.

Optionally, the first reference signal includes a demodulation reference signal DMRS or a sounding reference signal SRS.

The implementation manner ensures the integrity of the first reference signal in the second time unit, enables the first reference signal to be used for channel estimation of one or more parts of the second time unit, which are divided by the first resource, and further ensures the demodulation performance of the data in the second time unit.

With reference to the first aspect, in a further implementation manner of the first aspect, the terminal device is a coverage enhancement device or a device that performs repeated transmission for multiple times, and/or the number of times that the terminal device performs repeated transmission is greater than a preset number of times.

In a second aspect, an embodiment of the present application provides a data transmission method, where the method includes: the network equipment generates first indication information, wherein the first indication information is used for indicating the terminal equipment to reserve first resources; the network equipment sends the first indication information to the terminal equipment; and determining a third resource according to the first resource and the second resource, and receiving uplink data sent by the terminal equipment in the third resource. The second resource is a resource for sending uplink data by the terminal equipment, the third resource is a residual resource of the second resource except overlapping resources or related resources of the overlapping resources, and the overlapping resources are resources overlapping the first resource and the second resource.

With reference to the second aspect, in an implementation manner of the second aspect, the determining, by the network device, a third resource according to the first resource and the second resource includes: the network equipment determines the third resource according to the first resource, the second resource and the transmission mode of the uplink data, wherein the transmission mode of the uplink data is a conversion precoding transmission mode.

With reference to the second aspect, in another implementation manner of the second aspect, the determining, by the network device, a third resource according to the first resource and the second resource includes: the network device determines the third resource according to the first resource, the second resource and the transmission mode of uplink data, wherein the third resource is the residual resource of the second resource except for the overlapping resource, and the transmission mode of the uplink data is a non-conversion precoding transmission mode.

With reference to the second aspect, in a further implementation manner of the second aspect, the overlapping resources include at least one symbol in a time domain; wherein the related resources of the overlapping resources include the at least one symbol in a time domain and include all frequency domain resources corresponding to the at least one symbol in a frequency domain; the third resource is the remaining resource of the second resource excluding the related resource of the overlapping resource.

With reference to the second aspect, in a further implementation manner of the second aspect, the overlapping resource includes at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is the residual resource of the second resource except the related resource of the overlapped resource, and the related resource of the overlapped resource comprises all frequency domain units corresponding to the first symbol; and the fourth resource is a resource obtained by removing the overlapping resource from the second resource, wherein the fourth resource is a discontinuous frequency domain unit which is at least one frequency domain unit existing between the first frequency domain unit and the second frequency domain unit on the first symbol.

Optionally, the frequency domain unit is one or more RBs.

With reference to the second aspect, in a further implementation manner of the second aspect, the overlapping resource includes at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is the residual resource of the second resource except related resources of overlapping resources, and the related resources of the overlapping resources comprise other frequency domain units except the first continuous frequency domain unit on the first symbol; the fourth resource is a resource obtained by removing the overlapping resource from the second resource, and the discontinuous frequency domain unit refers to at least one frequency domain unit existing between the first frequency domain unit and the second frequency domain unit on the first symbol; the first continuous frequency domain unit is the continuous frequency domain unit with the largest resource occupied by the first symbol in the fourth resource, or is the continuous frequency domain unit with the highest or lowest frequency on the first symbol in the fourth resource.

With reference to the second aspect, in a further implementation manner of the second aspect, the overlapping resource includes at least one second symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is the residual resource of the second resource except related resources of overlapping resources, and the related resources of the overlapping resources comprise the overlapping resources on the second symbol; and the fourth resource is a resource obtained by removing the overlapping resource from the second resource, wherein the fourth resource does not have a discontinuous frequency domain unit on the second symbol, and the discontinuous frequency domain unit refers to at least one frequency domain unit which is arranged between the first frequency domain unit and the second frequency domain unit on the second symbol.

With reference to the second aspect, in a further implementation manner of the second aspect, the overlapping resource includes at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain, and a time unit in which the first symbol is located is a first time unit; the third resource is the residual resource of the second resource except the related resource of the overlapped resource, the related resource of the overlapped resource comprises a first time unit where the first symbol is located in the time domain, and all frequency domain units corresponding to the first time unit are included in the frequency domain; the overlapping resources overlap with resources carrying the first reference signal in the first time unit, and/or the total number of symbols of the first symbols in the first time unit is greater than or equal to a first preset value, or the number of symbols of continuous first symbols in the first time unit is greater than or equal to a second preset value.

With reference to the second aspect, in a further implementation manner of the second aspect, the overlapping resource includes at least one second symbol in a time domain and at least one frequency domain unit in a frequency domain, and a time unit in which the second symbol is located is a second time unit; the third resource is the residual resource of the second resource except the related resource of the overlapped resource, and the related resource of the overlapped resource comprises all frequency domain units corresponding to the second symbol on the frequency domain; wherein the overlapping resources do not overlap with resources carrying the first reference signal in the second time unit; and/or, the total number of symbols of the second symbols in the second time unit is smaller than a first preset value, or the maximum value of the number of symbols of the continuous second symbols in the second time unit is smaller than a second preset value.

With reference to the second aspect, in a further implementation manner of the second aspect, the terminal device is a coverage-enhanced device or a device that performs repeated transmission multiple times, and/or the number of times that the terminal device performs repeated transmission is greater than a preset number of times.

In a third aspect, embodiments of the present application provide a data transmission apparatus, where the apparatus is configured to implement the foregoing first aspect and the data transmission method in various implementations of the first aspect. Wherein the data transmission device is a terminal device or a device integrated in the terminal device.

Optionally, the apparatus includes at least one functional unit or module, and further, the at least one functional unit is a receiving unit, a processing unit, a transmitting unit, or the like.

In a fourth aspect, embodiments of the present application further provide another data transmission apparatus, where the apparatus is configured to implement the foregoing second aspect and the data transmission method in various implementations of the second aspect. Wherein the data transmission device is a network device or a device integrated in the network device.

In a fifth aspect, embodiments of the present application also provide a communication device, including a processor and a memory, the processor coupled with the memory, the memory configured to store instructions; the processor is configured to invoke the instruction to cause the communication device to perform the data transmission method in the foregoing first aspect and the various implementation manners of the first aspect, or the processor is configured to invoke the instruction to cause the communication device to perform the data transmission method in the foregoing second aspect and the various implementation manners of the second aspect.

Optionally, the communication device further comprises a transceiver for receiving or transmitting messages and data of the peer device, etc.

Optionally, the communication device is an apparatus according to the third aspect or the fourth aspect, further, the network device may be a terminal device, such as a UE, when the network device is an apparatus according to the third aspect, and may be a network device, such as a base station or an access point, when the network device is an apparatus according to the fourth aspect.

In a sixth aspect, embodiments of the present application further provide a computer readable storage medium having stored therein instructions which, when executed on a computer or a processor, are adapted to carry out the methods of the foregoing first aspect and the various implementations of the first aspect, or to carry out the methods of the foregoing second aspect and the various implementations of the second aspect.

In a seventh aspect, embodiments of the present application further provide a computer program product comprising computer instructions which, when executed by a computer or processor, implement the methods of the foregoing first aspect and various implementations of the first aspect, or implement the methods of the foregoing second aspect and various implementations of the second aspect.

In an eighth aspect, embodiments of the present application further provide a chip system, where the chip system includes a processor and an interface circuit, where the interface circuit is coupled to the processor, and the processor is configured to execute a computer program or instructions to implement the method in the foregoing first aspect and the various implementations of the first aspect, or implement the method in the foregoing second aspect and the various implementations of the second aspect; wherein the interface circuit is configured to communicate with other modules outside the chip system.

In a ninth aspect, an embodiment of the present application further provides a communication system, including at least two communication devices, where the at least two communication devices include at least one first communication apparatus and at least one second communication apparatus, where the first communication apparatus may be an apparatus according to the third aspect, for implementing the data transmission method in the first aspect and the various implementation manners of the first aspect; the second communication device may be an apparatus as described in the fourth aspect, configured to implement the second aspect and the data transmission method in various implementation manners of the second aspect.

Optionally, the first communication device is a terminal device, and the second communication device is a network device.

According to the method provided by the embodiment, the network device configures the reserved resources in the uplink transmission process for the terminal device through the first indication information, so that the terminal device does not perform uplink transmission on the reserved first resources and the overlapped resources or related resources of the overlapped resources of the allocated second resources, and the remaining resources of the overlapped resources or related resources of the overlapped resources in the second resources can be continuously used as uplink transmission, thereby effectively utilizing the transmission resources, avoiding the mutual overlapping of the transmission resources between the terminal devices, improving the utilization rate of the resources when the repeated transmission times of the terminal device are more in the uplink transmission process, and improving the transmission efficiency and reliability.

Drawings

Fig. 1a is a schematic diagram of frequency hopping retransmission performed by a UE provided in the present application;

fig. 1b is a schematic diagram of non-frequency hopping retransmission performed by a UE provided in the present application;

fig. 2 is a schematic diagram of uplink transmission performed by a plurality of UEs provided in the present application;

fig. 3 is a schematic diagram of a scenario of a base station and a plurality of UEs provided in an embodiment of the present application;

fig. 4 is a flowchart of a data transmission method according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a first resource indicating reservation according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a process for determining a third resource according to an embodiment of the present application;

FIG. 7a is a schematic diagram of a process for determining a third resource according to an embodiment of the present application;

FIG. 7b is a schematic diagram of another process for determining a third resource according to an embodiment of the present application;

FIG. 7c is a schematic diagram of yet another process for determining a third resource according to an embodiment of the present application;

FIG. 7d is a schematic diagram of yet another process for determining a third resource according to an embodiment of the present application;

FIG. 7e is a schematic diagram of yet another process for determining a third resource according to an embodiment of the present application;

FIG. 7f is a schematic diagram of yet another process for determining a third resource according to an embodiment of the present application;

FIG. 7g is a schematic diagram of yet another process for determining a third resource according to an embodiment of the present application;

FIG. 7h is a schematic diagram of yet another process for determining a third resource according to an embodiment of the present application;

FIG. 7i is a schematic diagram of yet another process for determining a third resource according to an embodiment of the present application;

FIG. 7j is a schematic diagram of yet another process for determining a third resource according to an embodiment of the present application;

FIG. 7k is a schematic diagram of yet another process for determining a third resource according to an embodiment of the present application;

FIG. 7l is a schematic diagram of yet another process for determining a third resource according to an embodiment of the present application;

FIG. 7m is a schematic diagram of yet another process for determining a third resource according to an embodiment of the present application;

fig. 8a is a schematic diagram of indicating a first resource by a bitmap according to an embodiment of the present application;

FIG. 8b is a schematic diagram of another indication of a first resource by a bitmap according to an embodiment of the present application;

fig. 9 is a flowchart of another data transmission method according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a data transmission device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

In order to better understand the technical solution in the embodiments of the present application and make the above objects, features and advantages of the embodiments of the present application more obvious, the technical solution in the embodiments of the present application is described in further detail below with reference to the accompanying drawings.

Before the technical scheme of the embodiment of the application is described, an application scenario of the embodiment of the application is described with reference to the accompanying drawings.

The technical solution of The present application may be applied to a communication system composed of at least one network device and at least one terminal device, for example, a long term evolution (Long Term Evolution, LTE) system, or a fifth generation mobile communication system (The 5th generation,5G), and may also be applied to a subsequent communication system, for example, a sixth generation, seventh generation mobile communication system, etc., as long as a transmitting end in The communication system transmits information for indicating transmission resources, and another entity receiving end receives The information and determines transmission resources using The same.

As shown in fig. 3, in a communication system, the communication system includes a network device and at least one terminal device, where the network device may be a Base Station (BS), further, the base station may be a base station (base transceiver station, BTS) in a global system for mobile communications (global system for mobile communication, GSM) or code division multiple access (code division multiple access, CDMA), or a base station (NodeB) in wideband-CDMA (WCDMA), or an evolved NodeB (eNB/e-NodeB) in LTE, or an evolved base station (next generation eNB, ng-eNB) in LTE of the next generation, or a base station (gNB) in NR, or an access node in a base station or a wireless fidelity (wireless fidelity, wiFi) system in a future mobile communication system, and embodiments of the present application do not limit specific technologies and specific device configurations adopted by the network device. In this application, the network device may be a radio access network device.

The terminal device in the embodiments of the present application may be a device that provides services and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem, such as a wireless terminal.

Further, the wireless terminal may communicate with one or more nodes via a radio access network (radio access network, RAN), which may be mobile terminals such as mobile phones (or "cellular" phones) and computers with mobile terminals, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access network. Such as personal communication services (personal communication service, PCS) phones, cordless phones, session initiation protocol (session initiation protocol, SIP) phones, wireless local loop (wireless local loop, WLL) stations, personal digital assistants (personal digital assistant, PDAs), and the like. The wireless terminal may also be a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), a user equipment (user device), or a User Equipment (UE), and the embodiments of the present application do not limit the specific technology and specific equipment configuration used by the terminal device.

In this embodiment, as shown in fig. 3, only 6 UEs are illustrated, and the UEs are: UE1 vehicle, UE2 router, UE3 gas station, UE4 coffee machine, UE5 handset and UE6 printer. Wherein, the base station and the UE 1-UE 6 form a communication system. In the communication system, UE1 to UE6 can transmit uplink data to a base station, and the base station needs to receive the uplink data transmitted by UE1 to UE6. In addition, UE4 to UE6 may also constitute a communication system in which the base station may transmit downlink information to UE1, UE2, UE3, UE5, etc.; UE5 may also send downlink information to UE4 and UE6.

The embodiment provides a data transmission method, which is used for improving the efficiency of uplink data repeated transmission of a UE and the utilization rate of the residual idle resources under the condition that the same range of time-frequency resources allocated by each repeated transmission of the uplink of the UE is ensured.

Before the technical scheme of the application is introduced, two modes of Uplink (UL) transmission of the UE in the NR system are briefly introduced.

The first transmission mode is as follows: non-translated precoding

In the NR protocol, the transmission scheme of "non-conversion precoding" is a transmission scheme based on cyclic prefix orthogonal frequency division multiplexing (CP-OFDM). The transmission scheme may also be understood as a transmission scheme when the conversion precoding (transform precoding) is not used, or a transmission scheme when the conversion precoding is not enabled (english: transform precoding is not applied/disabled). With respect to this transmission manner, there is no limitation on whether the transmission resource used by the UE is continuous in the frequency domain, in other words, the UE may use continuous resource units for transmission in the frequency domain, or discontinuous resource units for transmission, where the discontinuous resource units are at least one resource unit existing or spaced between two resource units. The resource unit may be one Resource Block (RB) in the frequency domain, or a resource block group (resource block group, RBG) formed by a plurality of consecutive RBs, or one Resource Element (RE) or a resource element group (resource element group, REG).

The second transmission mode is as follows: conversion precoding

In the NR protocol, the transmission scheme of "conversion precoding" is a transmission scheme based on discrete fourier transform-spread-orthogonal frequency division multiplexing (discrete Fourier transform-spread-OFDM, DFT-s-OFDM). The transmission scheme may be understood as a transmission scheme when the conversion precoding is used or a transmission scheme when the conversion precoding is enabled (english: transform precoding is applied/enabled). In this transmission scheme, the transmission resource units used by the UE are required to be contiguous in the frequency domain. For example, for PUSCH transmission, since the transmission resource unit used by the PUSCH transmission is generally in granularity (or unit) of RB or RBG in the frequency domain, PUSCH transmission in this transmission manner requires the use of one RB/RBG or a plurality of consecutive RBs/RBGs.

The following examples describe the technical solutions provided in the present application in detail.

The method provided by the embodiment of the application can be used for determining the used transmission resources when the terminal equipment performs uplink repeated transmission. Specifically, the method comprises the following steps: the network equipment indicates a first resource reserved by the terminal equipment, wherein the first resource is a resource which is not used by the terminal equipment in uplink transmission; and then the terminal equipment determines a third resource used for actual transmission in the uplink transmission according to the first resource and the allocated second resource, and compared with the prior art, the uplink transmission resource determined by the mode utilizes more idle resources, so that more uplink data can be transmitted, the utilization rate of the uplink resource is improved, or the coding rate is reduced under the condition that the transmission rate is kept unchanged, and the transmission reliability is improved.

Further, as shown in fig. 4, the method in this embodiment includes:

step 101, a terminal device receives first indication information from a network device, where the first indication information is used to indicate a first resource reserved by the terminal device.

Alternatively, the first indication information may be higher layer signaling, such as radio resource control (radio resource control, RRC) signaling.

Optionally, the first indication information may be indicated by downlink control information (downlink control Information, DCI). For example, the network device configures a plurality of first resources to the terminal device through higher layer signaling, and further indicates one of the first resources to the terminal device through DCI.

Alternatively, as shown in fig. 5, the first resource indicated and reserved by the first indication information may be a resource at a resource block symbol (RB-symbol) level, for example, the indication manner of the reserved resource may be multiplexed with the indication manner of the reserved resource at the RB-symbol level of a Downlink (DL), or the first indication information may only indicate time domain symbol information, and the first resource may be all frequency domain resources corresponding to the time domain symbol indicated by the first indication information, or the resource indicated by the first indication information may also be a reserved resource at a RE level, or may be other reserved resources, for example, may be a union of reserved resources at a plurality of resource block symbol levels.

Optionally, the first indication information indicates that the first resource may be implemented by a bitmap (bitmap), and a specific procedure is described in detail in the following embodiments.

Step 102, the terminal device determines a third resource according to the first resource and the second resource, where the second resource is a resource used for the terminal device to send uplink data, the third resource is a residual resource of the second resource, where overlapping resources or related resources of overlapping resources are removed, and the overlapping resources are resources where the first resource overlaps with the second resource.

The second resource may be a resource indicated by the network device sending to each terminal device through a broadcast manner, or a resource indicated by a system message, or a resource allocated to the terminal device and indicated by DCI, or a resource configured by the network device in advance through a semi-static configuration manner, for example, a configured grant (grant) transmission resource, or a grant free transmission resource is not required, where the acquiring manner of the second resource is not limited in this embodiment.

Further, the allocated resources indicated by DCI refer to: in uplink transmission scheduled by the DCI, resources indicated by the resource allocation indication information carried in the DCI. It represents transmission resources used by the UE without considering the reserved first resources; similarly, the pre-configured allocation resources are similar, and differ from the allocation resources of DCI in that it does not require the network device to be dynamically indicated by DCI, its transmission resources are semi-statically configured, i.e. configured by RRC higher layer signaling, and used irrespective of the reserved first resources.

Step 103, the terminal equipment sends uplink data on the third resource.

In addition, before step 102 of the method, the method may further include: the terminal device determines whether the reserved first resource is in effect, and when the first resource is in effect, the steps 102 and 103 are executed. That is, when the first resource takes effect, the terminal device transmits on the third resource determined by the first resource and the second resource; when the first resource is not effective, the terminal equipment only determines a third resource according to the second resource and transmits the uplink data on the third resource, and the size of the third resource is the same as that of the second resource.

Specifically, the following judging manner is adopted to judge whether the first resource is effective or not:

the first judgment mode is as follows: it is determined whether the terminal device is a coverage enhanced device or a device that performs repeated transmissions.

The second judgment mode is as follows: judging whether the number of times of repeated transmission is larger than a preset number of times;

third judgment mode: judging whether the terminal equipment is coverage enhancement equipment or equipment for repeated transmission for a plurality of times, and judging whether the number of repeated transmission is larger than a preset number of times.

Further, in the specific implementation, for the first judgment mode: the base station informs the UE through RRC signaling, sets or indicates the UE to be a first type UE, wherein the first type UE is coverage enhanced UE or potential UE with more times of repeated uplink data transmission. And the first indication information configured for the first type of UE is valid in advance. Specifically, in one implementation manner, the base station sends second indication information to the UE, where the second indication information is used to indicate that the UE is a coverage-enhanced UE or a UE that needs to repeatedly transmit uplink data for a greater number of times.

The second judgment mode is that the first resource is only effective when the base station indicates that the repeated transmission times of the uplink data of the UE is larger than the preset times (the preset times are X, X is more than or equal to 1 and is a positive integer). Specifically, in one implementation manner, the base station sends third indication information to the UE, where the third indication information is used to indicate the number of repeated transmissions of the UE, where the third indication information may be carried in DCI, and the number of repeated transmissions is set to be Y as a positive integer. When Y is less than or equal to X, the first resource is not valid, i.e., the first resource is not reserved, for example, when y=x=1, the number of times of repeated transmission is needed only once, i.e., no repeated transmission is needed, and the first resource is not valid. Since the transmission time interval required for the smaller number of repeated transmissions is shorter, the base station can expect the resource usage in a short period, and therefore, the size of the second resource can be indicated only by means of dynamic signaling (e.g., DCI), so that the first indication information is not required to be configured to indicate the first resource, and the configuration mode is more free and flexible.

Alternatively, x=8. The current NR protocol supports the maximum repeated transmission times of 8, and when the repeated times are not more than 8, the first resource does not need to be indicated; when the number of repeated transmissions Y is equal to or greater than the preset number of times X, x=8, the base station cannot determine which certain symbols of the slots must be available to a certain terminal device in a long time in the future due to greater uncertainty of resource allocation in the subsequent slots, and thus the first indication information is required to indicate the first resource.

Optionally, the preset times may be other values, or values predefined by a protocol or configured by a base station.

For the third judgment mode, similar to the above-mentioned "first judgment mode" and "second judgment mode", if and only if the UE is the first type UE, the number of repeated transmissions is greater than the preset number, that is, Y > X, the reserved first resource is validated. Otherwise, the first resource is not validated, and the specific implementation process of the "third determination mode" refers to the descriptions related to the "first determination mode" and the "second determination mode" above, which are not described in detail herein.

According to the method provided by the embodiment, the network equipment configures the reserved first resource for the terminal equipment through the first indication information, so that the terminal equipment determines the third resource for uplink transmission through the reserved first resource and the allocated second resource, wherein the third resource is the residual resource except overlapping resources or related resources of the overlapping resources in the second resource, the transmission resources are effectively utilized by uplink transmission on the residual resource, the mutual overlapping of the transmission resources between the terminal equipment is avoided, the utilization rate of the resources in the process of repeated transmission times in the uplink transmission process of the terminal equipment is improved, and the transmission efficiency and reliability are improved.

The specific process of determining the third resource according to the first resource and the second resource in step 102 is described below. The specific implementation manner of determining the third resource according to the first resource and the second resource may be various, and will be described separately according to different situations.

For convenience of explanation, first, description will be given of representations of various resources in this embodiment, where resources involved in this application, for example, a first resource, a second resource, and a third resource, are represented by OFDM symbols in the time domain; represented in the frequency domain by frequency domain elements, such as RBs. As shown in fig. 5, for a transmission resource including one slot (slot) in the time domain, taking 14 OFDM symbols in the time domain and 7 RBs at most in the frequency domain as an example, index numbers (abbreviated as indexes) from 1 st OFDM symbol to 14 th OFDM symbol from left to right in the time domain are 0,1,2, …,13 in order; the indexes of the 1 st RB to the 7 th RB from top to bottom in the frequency domain are sequentially 1,2,3, …,7. Also shown in fig. 5 is one possible schematic diagram of a first resource, wherein the first resource comprises an OFDM symbol with an index of 7 in the time domain and the resource comprises three RBs with indices of 3 to 5 in the frequency domain.

In step 102, the specific implementation manner of determining the third resource by the terminal device according to the first resource and the second resource may be divided into the following several types:

in a first possible implementation manner, the terminal device determines a third resource according to the first resource and the second resource, where an overlapping resource between the first resource and the second resource is an empty set, that is, the first resource and the second resource are not overlapped, and determines that the third resource is a remaining resource of the second resource after the empty set is removed, where the remaining resource is the second resource, that is, a size of the third resource is the same as a size of the second resource. As shown in fig. 6, the first resource includes an OFDM symbol with an index of 7 in the time domain and includes an RB with an index of 7 in the frequency domain; the second resource includes the entire slot, i.e., a total of 14 OFDM symbols with indexes 0 to 13, in the time domain, and includes all RBs with indexes 2 to 6 in the frequency domain; the intersection of the first resource and the second resource is an empty set, so the size of the third resource is the same as the size of the second resource, i.e., the third resource includes 14 OFDM symbols in the time domain, and the resources in the frequency domain include all RBs with indexes 2 to 6.

In a second possible implementation manner, the terminal device determines a third resource according to the first resource, the second resource and a transmission mode of uplink data, where the uplink transmission mode is a transmission mode of non-conversion precoding.

And according to a third possible implementation manner, the terminal equipment determines a third resource according to the first resource, the second resource and the transmission manner of uplink data, wherein the uplink transmission manner is a transmission manner of conversion precoding.

A fourth possible implementation manner, the terminal device determines the third resource according to the first resource and the second resource. Specifically, the terminal device does not determine the third resource according to the transmission mode of the uplink data, but determines the third resource according to the first resource and the second resource only.

Further, in a third or fourth possible implementation manner, the terminal device further determines the third resource according to an overlapping situation of a resource used for carrying the reference signal in the second resource and the first resource, and/or a time domain continuous characteristic situation of the second resource excluding the remaining resources of the first resource, where the reference signal includes a demodulation reference signal (demodulation reference signal, DMRS) and/or a sounding reference signal (sounding reference signal, SRS).

The following describes in detail the various cases of the second to fourth possible implementations.

First, a second possible implementation will be described, and specifically, one possible case is as follows:

Case a

And under the condition that the transmission mode of the uplink data is a non-conversion precoding transmission mode, and an overlapped resource exists between the first resource and the second resource, at the moment, the third resource is the residual resource except for the overlapped resource in the second resource. Because the terminal equipment can use discontinuous frequency domain units for transmission in a non-conversion precoding transmission mode, when determining uplink transmission resources, partial frequency domain units on a certain time domain symbol can be reserved, so that the utilization rate of the transmission resources is improved.

For example, as shown in fig. 7a, the first indication information indicates that the first resource reserved by the UE includes an OFDM symbol with an index of 7 in the time domain and three RBs with indexes of 3 to 5 in the frequency domain; the second resource includes the whole time slot in the time domain, namely, a total of 14 OFDM symbols with indexes of 0 to 13, all RBs with indexes of 2 to 6 are included in the frequency domain, the overlapped resource includes OFDM symbols with indexes of 7 in the time domain, three RBs with indexes of 3 to 5 are included in the frequency domain, namely, the size of the overlapped resource is the same as that of the first resource, it is determined that a third resource is the rest resource of the second resource except the first resource, the determined third resource includes 14 OFDM symbols in the time domain, wherein the frequency domain resource corresponding to the total of 13 OFDM symbols with indexes of 0 to 6,8 to 13 includes all RBs with indexes of 2 to 6, and the frequency domain resource corresponding to the OFDM symbol with indexes of 7 includes two RBs with indexes of 2 and 6.

According to the method, the characteristic that the resource units transmitted in the non-conversion precoding transmission mode can be discontinuous in the frequency domain is utilized, and the remaining resources after the overlapping resources are removed by the second resources are utilized for uplink transmission, so that the remaining resources are utilized to the greatest extent, and the utilization rate of the uplink resources is effectively improved.

Next, various cases included in the third possible implementation manner will be described. In the implementation manner, the terminal equipment determines a third resource according to the first resource and the second resource and the mode of converting precoding in the transmission manner of uplink data; specifically, the possible cases are as follows:

case b

An overlapping resource exists between the first resource and the second resource, the overlapping resource comprises at least one symbol in a time domain and at least one frequency domain unit in a frequency domain, the third resource is the rest resource of the second resource except for related resources of the overlapping resource, the related resources of the overlapping resource comprise the at least one symbol in the time domain and all frequency domain units corresponding to the at least one symbol in the frequency domain.

For example, as shown in fig. 7b, the first indication information indicates that the first resource includes an OFDM symbol with an index of 7 in the time domain and includes two RBs with an index of 5 and an index of 6 in the frequency domain. The second resource includes the entire slot, i.e., a total of 14 OFDM symbols with indexes 0 to 13, in the time domain, and includes all RBs with indexes 2 to 6 in the frequency domain. The size of the overlapped resource is the same as that of the first resource, the third resource is determined to be the residual resource after relevant resources of the overlapped resource are removed from the second resource, the relevant resources of the overlapped resource comprise OFDM symbols with the index of 7 in a time domain, and RBs with the index of 2 to 6 in a frequency domain; the determined third resource includes a total of 13 OFDM symbols with indexes 0 to 6,8 to 13 in the time domain, and includes all RBs with indexes 2 to 6 in the frequency domain.

According to the method provided by the embodiment, all frequency domain units on the time domain symbol corresponding to the overlapped resource are not used as resources for transmitting uplink data by the terminal equipment, and all frequency domain units corresponding to the remaining time domain symbols are used for transmitting uplink data, so that the continuity of the frequency domain units on any remaining time domain symbol is ensured, and the terminal equipment is ensured to ensure the consistent transmitting power of each time domain symbol when transmitting the uplink data by using the third resource. In addition, the method is simple and clear in the process of indicating the first resource and determining the third resource, and is easy to realize.

Case c

And when a discontinuous frequency domain unit exists on the first symbol, the discontinuous frequency domain unit refers to that at least one frequency domain unit is spaced between the first frequency domain unit and the second frequency domain unit exists on the first symbol, at the moment, the third resource is determined to be the residual resource after relevant resources of the overlapping resources are removed from the second resource, and the relevant resources of the overlapping resources comprise all frequency domain units corresponding to the first symbol.

For example, as shown in fig. 7c, the first indication information indicates that the first resource includes an OFDM symbol with an index of 7 in the time domain and includes two RBs with an index of 3 and an index of 5 in the frequency domain; the second resource includes the entire slot, i.e., a total of 14 OFDM symbols with indexes 0 to 13, in the time domain, and includes all RBs with indexes 2 to 6 in the frequency domain. The size of the overlapped resource is the same as that of the first resource, a fourth resource is a residual resource obtained by removing the overlapped resource by a second resource, the residual resource comprises 14 OFDM symbols in a time domain, wherein on other symbols except for the OFDM symbol with the index of 7, the corresponding frequency domain unit comprises all RBs with the indexes of 2 to 6; on the OFDM symbol with index 7, the corresponding frequency domain unit includes three RBs with indexes 2, 4 and 6. And setting the RB with the index of 2 on the frequency domain as a first frequency domain unit, setting the RB with the index of 4 as a second frequency domain unit, and spacing one RB, namely the RB with the index of 3, between the first frequency domain unit and the second frequency domain unit, wherein the RB belongs to the discontinuous frequency domain unit, so that related resources of the overlapped resources are all corresponding RBs on the OFDM symbol with the index of 7, and third resources are the rest resources after all RBs on the OFDM symbol with the index of 7 are removed in the second resources, namely the third resources comprise 13 OFDM symbols with the indexes of 0 to 6 and 8 to 13 on the time domain, and all RBs with the indexes of 2 to 6 on the frequency domain.

According to the method provided by the embodiment, all frequency domain units on the time domain symbol corresponding to the overlapped resource are not used as resources for transmitting uplink data by the terminal equipment, and all frequency domain units corresponding to the remaining time domain symbols are used for transmitting uplink data, so that the continuity of the frequency domain units on any remaining time domain symbol is ensured, and the terminal equipment is ensured to ensure the transmission power consistency of each time domain symbol when transmitting the uplink data by using the third resource. In addition, the method is simple and clear in the process of indicating the first resource and determining the third resource, and is easy to realize.

Case d

An overlapping resource exists between a first resource and a second resource, the overlapping resource comprises at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain, the resource of the second resource after the overlapping resource is removed is a fourth resource, and when the fourth resource exists a discontinuous frequency domain unit in the first symbol, the discontinuous frequency domain unit means that at least one frequency domain unit is spaced between the first frequency domain unit and the second frequency domain unit in the first symbol; at this time, the third resource is the remaining resource of the second resource excluding the related resource of the overlapping resource, where the related resource of the overlapping resource includes other frequency domain units except the first continuous frequency domain unit on the first symbol.

Wherein the first continuous frequency domain unit is:

(1) A continuous frequency domain unit with the largest resource occupied on the first symbol in the fourth resource; or alternatively, the first and second heat exchangers may be,

(2) And the frequency of the continuous frequency domain unit with the highest or lowest frequency on the first symbol in the fourth resource.

For example, when the first continuous frequency domain unit is the above (1) th case, as shown in fig. 7d, the first indication information indicates that the first resource includes an OFDM symbol with an index of 7 in the time domain and includes two RBs with an index of 3 and an index of 5 in the frequency domain; the second resource includes the entire slot, i.e., a total of 14 OFDM symbols with indexes 0 to 13, in the time domain, and includes all RBs with indexes 2 to 7 in the frequency domain; the size of the overlapped resource is the same as that of the first resource, a fourth resource is the residual resource of the second resource after the overlapped resource is removed, the fourth resource comprises 14 OFDM symbols in a time domain, wherein the corresponding frequency domain unit comprises all RBs with indexes of 2 to 7 except for other symbols with indexes of 7; on the OFDM symbol with index 7, the corresponding frequency domain unit includes RBs with indexes 2, 4, 6 and 7. Wherein the two RBs with index 2 and index 4 are non-continuous frequency domain units, the continuous frequency domain unit consisting of the two RBs with index 6 and index 7 has the largest (or longest length) resources on the OFDM symbol with index 7, so the continuous frequency domain unit is the first continuous frequency domain unit, the third resource is the remaining resource after the related resource of the overlapping resource is removed in the second resource, the related resource of the overlapping resource includes other frequency domain units except the first continuous frequency domain unit on the OFDM symbol with index 7, namely, four RBs with indexes 2 to 5 corresponding to the OFDM symbol with index 7, the third resource includes 13 OFDM symbols with indexes 0 to 6,8 to 13 in the time domain, and includes all RBs with indexes 2 to 7 in the frequency domain; and two RBs (the first continuous frequency domain unit) with an index of 6 and an index of 7 on the corresponding frequency domain on the OFDM symbol with an index of 7. The first continuous frequency domain unit determined by the method can be used for transmitting uplink data, so that the utilization rate of resources is improved to the greatest extent on the premise of ensuring that continuous frequency domain resources are used on the first symbol.

It should be understood that the first continuous frequency domain unit may be one RB, or may be two or more RBs.

Optionally, when the first continuous frequency domain unit is the case of the above (2), as shown in fig. 7e, the first indication information indicates that the first resource includes an OFDM symbol with an index of 7 in a time domain, and includes an RB with an index of 5 in the time domain; the second resource includes the entire slot, i.e., a total of 14 OFDM symbols with indexes 0 to 13, in the time domain, and includes all RBs with indexes 3 to 6 in the frequency domain; the size of the overlapped resource is the same as that of the first resource, a fourth resource is the residual resource of the second resource after the overlapped resource is removed, the fourth resource comprises 14 OFDM symbols in a time domain, wherein the corresponding frequency domain unit comprises all RBs with indexes of 3 to 6 except for other symbols except for the OFDM symbol with the index of 7; the frequency domain unit corresponding to the OFDM symbol with index 7 comprises three RBs with indexes 3, 4 and 6, wherein the two RBs with indexes 3 and 4 form a continuous frequency domain unit, and the resource occupied on the OFDM symbol with index 7 is the largest, in this case, the RB with index 6 is determined to be the first continuous frequency domain unit according to the principle of lowest frequency. Since the frequency of the RBs decreases in the order of the index numbers from smaller to larger, the frequency corresponding to the RBs with larger index numbers in the frequency domain is lower, and the related resources of the overlapping resources are three RBs with indexes of 3 to 5 in the corresponding frequency domain on the OFDM symbol with index of 7. The determined third resource includes 13 OFDM symbols having indexes 0 to 6,8 to 13 in total in a time domain and includes all RBs having indexes 3 to 6 in a frequency domain; and an RB (the first contiguous frequency domain unit) with an index of 6 on the corresponding frequency domain on the OFDM symbol with an index of 7. The continuous frequency domain unit with the minimum frequency determined by the method transmits uplink data, so that the channel quality of the transmitted data is improved to the greatest extent on the premise of ensuring that continuous frequency domain resources are used on the first symbol, and the lower the frequency domain unit with the lower frequency is used for uplink transmission in general, the smaller the propagation loss of the corresponding wireless signal is, and the better the channel quality is.

Further, if the first symbol on the fourth resource includes two or more consecutive frequency domain units of the same length, for example, as shown in fig. 7f, two consecutive frequency domain units, which are consecutive frequency domain units consisting of two RBs with an index of 2 and an index of 3, and consecutive frequency domain units consisting of two RBs with an index of 5 and an index of 6, respectively, are included on the OFDM symbol with an index of 7, where the consecutive frequency domain units consisting of RBs with an index of 5 and an index of 6 are determined to be the first consecutive frequency domain units according to the principle of lowest frequency, and further, it is determined that the related resource of the overlapping resource includes OFDM symbols with an index of 7 in the time domain and three RBs with an index of 2 to 4 in the frequency domain, so it is determined that the third resource includes a total of 13 OFDM symbols with an index of 0 to 6,8 to 13 in the time domain and all RBs with an index of 2 to 6 in the frequency domain; and two RBs (the first continuous frequency domain unit) with an index of 5 and an index of 6 on the corresponding frequency domain on the OFDM symbol with an index of 7. That is, the first continuous frequency domain unit is the continuous frequency domain unit with the largest resource occupied by the first symbol in the fourth resource, and when a plurality of continuous frequency domain units with the largest resource and the same length exist, the first continuous frequency domain unit is determined to be the lowest frequency in the continuous frequency domain units with the largest resources.

It should be appreciated that in the specific implementation manner described above, the first continuous frequency domain unit may also be determined according to the principle of highest frequency. Further, the first continuous frequency domain unit may also be determined by other predefined rules, so that a segment of continuous frequency domain unit may be uniquely determined from a plurality of continuous frequency domain units.

Case e

There is an overlapping resource between the first resource and the second resource, the overlapping resource comprising at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain; and the resources after the second resource removes the overlapping resources are fourth resources, and discontinuous frequency domain units which do not exist on the second symbol, namely continuous frequency domain units, are all discontinuous frequency domain units, and then the third resources are residual resources of the second resource except related resources of the overlapping resources, wherein the related resources of the overlapping resources comprise the overlapping resources on the second symbol, in other words, the continuous frequency domain units corresponding to the second symbol on the fourth resource are reserved for transmitting uplink data.

For example, as shown in fig. 7g, the first indication information indicates that the first resource includes 7 OFDM symbols in the time domain, and three RBs in the index of 3 to 5 in the time domain; the second resource includes the entire slot, i.e., a total of 14 OFDM symbols with indexes 0 to 13, in the time domain, and includes all RBs with indexes 4 to 7 in the frequency domain; the overlapping resource includes two RBs with an index of 4 and an index of 5 corresponding to an OFDM symbol with an index of 7 in a time domain, the fourth resource is a remaining resource after the second resource is removed from the overlapping resource, the fourth resource includes 14 OFDM symbols in the time domain, wherein the corresponding frequency domain unit includes all RBs with an index of 4 to 7 except for the OFDM symbol with an index of 7 in other symbols; on the OFDM symbol with index of 7, the corresponding frequency domain unit includes two RBs with index of 6 and index of 7, and constitutes a continuous frequency domain unit, when there is no discontinuous frequency domain unit on the OFDM symbol with index of 7, determining that the third resource is a second resource, excluding the remaining resources after two RBs (overlapping resources) with index of 4 and index of 5, which correspond to the OFDM symbol with index of 7, the third resource includes 13 total OFDM symbols with indexes of 0 to 6,8 to 13 in the time domain, and includes all RBs with indexes of 4 to 7 in the frequency domain; and two RBs with an index of 6 and an index of 7 on the corresponding frequency domain on the OFDM symbol with an index of 7.

In the method of the embodiment, on at least one time domain symbol corresponding to the overlapped resource, if the frequency domain units on the time domain symbol are all continuous frequency domain units, a continuous frequency domain unit is reserved for transmitting uplink data, so that the transmission efficiency of the uplink resource and the utilization rate of the residual resource are improved.

Case f

In addition, other possible implementations of the present embodiment also include a combination of two or more of the foregoing cases. For example, the case e may be combined with any one of the cases b to d, and specifically may include the case e and the case c, or the case e and the case b. The following will describe a combination of the case e and the case c as an example.

When there is an overlapping resource between the first resource and the second resource and the overlapping resource includes at least one first symbol and at least one second symbol in the time domain, each first symbol and each second symbol includes at least one frequency domain unit in the frequency domain, and a fourth resource is a resource obtained by removing the overlapping resource by the second resource, and whether the frequency domain unit corresponding to each first symbol and each second symbol meets the above conditions is determined, and whether the corresponding frequency domain unit is reserved in each time domain symbol is determined, so as to determine the size of the third resource.

Specifically, as shown in fig. 7h, the first indication information indicates that the first resource includes two OFDM symbols with an index of 7 and an index of 4 in the time domain, optionally, the OFDM symbol with an index of 7 is set as a first symbol, the OFDM symbol with an index of 4 is set as a second symbol, the frequency domain unit reserved on the first symbol includes three RBs with an index of 3 to 5, and the frequency domain unit reserved on the second symbol includes two RBs with an index of 5 and an index of 6; and the size of the overlapped resource is the same as that of the first resource, the remaining resource after the second resource removes the overlapped resource is a fourth resource, and the fourth resource includes 14 OFDM symbols in the time domain, wherein discontinuous frequency domain units exist on the OFDM symbol with index of 7, namely, two RBs with index of 2 and index of 6 are discontinuous frequency domain units, so that it is determined that all RBs on the OFDM symbol with index of 7 (first symbol) are not used for transmitting uplink data. For the OFDM symbol with index 4 in the fourth resource, there is no discontinuous frequency domain unit, that is, three RBs with index 2 to 4 in the frequency domain form a continuous frequency domain unit, so on the OFDM symbol with index 4, the corresponding continuous frequency domain unit with index 2 to 4 in the frequency domain can be used to transmit uplink data, as part of the third resource, the determined third resource includes 12 total OFDM symbols with index 0 to 3,5 to 6,8 to 13 in the time domain, and the corresponding OFDM symbol with index 2 to 6 in the frequency domain; and three RBs with indexes of 2 to 4 on the corresponding frequency domain on the OFDM symbol with the index of 4.

It will be appreciated that when the fourth resource is present in a plurality of OFDM symbols, it is necessary to consider whether the frequency domain units on each time domain symbol are contiguous, non-contiguous, preset maximum or minimum frequencies, etc. one by one when determining the third resource, so as to be able to determine whether to reserve or delete the frequency domain units on these time domain symbols. The present embodiment only exemplifies a combination of the above two cases, and may further include a combination of the above more possible cases, and the more possible other cases are detailed with reference to the related descriptions of the above specific cases, which are not repeated in this embodiment.

In a fourth possible implementation manner, the terminal device does not determine the third resource according to the transmission manner of the uplink data, but determines the third resource according to the first resource and the second resource only.

Specifically, the various cases included in the fourth possible implementation manner are the same as those in the third possible implementation manner, for example, the "case b" to the "case f" described above are specifically included, where the specific implementation manner in each case is referred to the description of the above embodiment, and are not repeated herein one by one.

Further, in a third or fourth possible implementation manner, the terminal device further determines the third resource according to an overlapping situation of a resource used for carrying the reference signal in the second resource and the first resource. In consideration of the integrity of the reference signal, the transmission data and/or the time domain continuous characteristic of the reference signal, the demodulation performance of the transmission data may be affected, so the terminal device determines the third resource according to the overlapping condition of the resource carrying the reference signal in the second resource and the first resource and/or the time domain continuous condition of the remaining resource after the second resource removes the first resource. Specifically, in this embodiment, a specific process of determining the third resource is described by taking the DMRS as an example.

Case g

When the terminal equipment determines the third resource according to the first resource and the second resource, if the first resource and the second resource have overlapped resources, the overlapped resources comprise at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain, a time unit in which the first symbol is located is a first time unit, the first time unit comprises at least one frequency domain unit in the frequency domain, and a first reference signal is carried on the first time unit. Wherein the third resource is determined to be a remaining resource of the second resource excluding related resources of overlapping resources, where the related resources of overlapping resources include the first time unit in a time domain and all frequency domain units corresponding to the first time unit in a frequency domain, if any condition is satisfied, where the any condition includes:

Condition 1: the overlapping resource overlaps with a resource carrying a first reference signal in the first time unit, wherein the first reference signal comprises a DMRS or SRS;

condition 2: the total number of the symbols of the first symbols in the first time unit is larger than or equal to a first preset value, or the maximum value of the number of the symbols of the continuous first symbols in the first time unit is larger than or equal to a second preset value;

condition 3: and (2) under the condition that overlapping resources overlap with resources carrying the first reference signal in the first time unit, wherein the total number of symbols of the first symbols in the first time unit is larger than or equal to a first preset value or the number of symbols of continuous first symbols in the first time unit is larger than or equal to a second preset value.

Specifically, in one specific implementation of the above "condition 1", for example, as shown in fig. 7i, the first indication information indicates that the first resource includes two OFDM symbols with index 2 and index 3 in the time domain, and each OFDM symbol includes two RBs with index 5 and index 6 in the time domain, respectively; the size of the overlapped resource is the same as that of the first resource, the time slot where the overlapped resource is located is set as a first time unit, the OFDM symbol with the index of 2 in the time domain in the first time unit, and five RBs with the indexes of 2 to 6 in the frequency domain are resources for bearing the DMRS. The overlapping resources and the resources carrying the DMRS have overlapping, the overlapping resources are two RBs with indexes of 5 and 6 on the corresponding frequency domain on the OFDM symbol with the index of 2, all frequency domain units corresponding to the first time unit are determined not to be used for transmitting uplink data at this time, where the first time unit may be a time slot where the overlapping resources are located, that is, the whole time slot is related resources of the overlapping resources, the third resource is related resources of the second resource excluding the overlapping resources, and the third resource determined in the implementation mode is an empty set.

Alternatively, in one specific implementation of the "condition 2" described above, for example, as shown in fig. 7j, the first indication information indicates that the first resource includes 4 OFDM symbols with indexes 4 to 7 in the time domain, and the frequency domain resource corresponding to each OFDM symbol includes two RBs with indexes 5 and 6; and the size of the overlapped resource is the same as the size of the first resource, and the time slot where the overlapped resource is located is set as a first time unit, where the first time unit may be the time slot where the overlapped resource is located. Further, the OFDM symbol with index of 2 in the time domain in the first time unit, and five RBs with index of 2 to 6 in the frequency domain are resources for carrying DMRS. Assuming that the first preset value is 4, the total number of symbols (4) of the first symbols in the first time unit is equal to the first preset value, at this time, it is determined that all frequency domain units corresponding to the first time unit are not used for transmitting uplink data, that is, the whole time slot is related resources of the overlapping resources, and the third resource is related resources of the second resource excluding the overlapping resources, where the third resource is determined as an empty set in this implementation.

In addition, the method further comprises the steps of: and when the third resource is determined, whether the number of the continuous first symbols in the first time unit is larger than or equal to a second preset value or not can be judged, and if so, all the frequency domain units corresponding to the first time unit are not used for uplink transmission. The number of symbols of the continuous first symbol refers to the number of time domain symbols corresponding to the continuous time domain unit in all time domain symbols of the first time unit. For example, the continuous time domain unit shown in fig. 7j is composed of four OFDM symbols with indexes of 4 to 7, so that the number of symbols of the continuous first symbol is 4, and the second preset value may be the same as the first preset value or different from the first preset value.

Alternatively, the first time unit may be a slot (slot) or a subframe (subframe), or may be other time units, which is not limited in this embodiment.

Optionally, in a specific embodiment of the foregoing "condition 3", the "condition 3" is an intersection between the foregoing "condition 1" and "condition 2", that is, it is determined that all frequency domain units corresponding to the first time unit are not used for transmitting uplink data only when both the "condition 1" and the "condition 2" are satisfied.

Case h

And when the terminal equipment determines the third resource according to the first resource and the second resource, if the first resource and the second resource have overlapped resources, the overlapped resources comprise at least one second symbol in a time domain and at least one frequency domain unit in a frequency domain. Wherein if any one of the following conditions (i.e. "condition 1", "condition 2", "condition 3" in the above case g) is satisfied, determining that the third resource is the remaining resource of the second resource excluding the related resource of the overlapping resource, where the related resource of the overlapping resource includes the at least one second symbol in the time domain and includes all frequency domain units corresponding to the at least one second symbol in the frequency domain. The specific situations include the following:

For another aspect of the above "condition 1": the overlapping resources do not overlap with resources carrying a first reference signal in the first time unit;

another aspect of the above "condition 2": the total number of the symbols of the first symbols in the first time unit is smaller than the first preset value, or the maximum value of the number of the symbols of the continuous first symbols in the first time unit is smaller than the second preset value;

another aspect of the above "condition 3": the overlapping resources do not overlap with resources carrying the first reference signal in the first time unit, and the total number of symbols of the first symbol in the first time unit is smaller than a first preset value or the maximum value of the number of symbols of the continuous first symbol in the first time unit is smaller than a second preset value.

Specifically, for example, as shown in fig. 7k, the overlapping resource time domain includes three OFDM symbols with indexes 4 to 6, and each OFDM symbol includes two RBs with indexes 5 and 6 in the corresponding frequency domain; the size of the overlapping resources is the same as the size of the first resource. And setting the time slot where the overlapped resource is located as a first time unit, wherein the OFDM symbol with the index of 2 in the time domain in the first time unit, the RBs with the index of 2 to 6 in the frequency domain are resources for bearing the DMRS, wherein the overlapped resource and the resources for bearing the DMRS are not overlapped, so that the related resources of the overlapped resource are determined to be all RBs corresponding to three OFDM symbols with the index of 4 to 6 in the time domain, the third resource is the residual resources of the second resource after the related resources of the overlapped resource are removed, the total of 11 OFDM symbols with the indexes of 0 to 3 and 7 to 13 in the time domain are determined, and all RBs with the indexes of 2 to 6 in the frequency domain are determined.

Optionally, determining whether the total number of symbols of the first symbols in the first time unit is smaller than a first preset value, for example, the total number of symbols of the first symbols in the first time unit shown in fig. 7k is 3, if the first preset value is 4, and if the total number of symbols of the first symbols is smaller than the first preset value, determining that all frequency domain units corresponding to three first symbols (three OFDM symbols with indexes of 4 to 6) in the first time unit are not used for transmitting uplink data, where the third resource is a resource remaining after the second resource removes all frequency domain units corresponding to the three first symbols.

Optionally, determining whether the number of continuous first symbols in the first time unit is smaller than a first preset value, if the first time unit includes a plurality of continuous time domain units, each continuous time domain unit is composed of at least one first symbol, determining a target continuous time domain unit in the plurality of continuous time domain units, wherein the target continuous time domain unit includes the largest number of first symbols, comparing the number of first symbols corresponding to the target continuous time domain unit with a second preset value, and determining the size of the third resource according to a comparison result.

Alternatively, in a specific embodiment of the above "condition 3" on the other hand, the "condition 3" on the other hand is an intersection of the "condition 1" on the other hand and the "condition 2" on the other hand, that is, it is determined that all frequency domain units corresponding to the second symbol are not used for transmitting uplink data only when both the "condition 1" on the other hand and the "condition 2" on the other hand are satisfied.

Case i

In addition, optionally, other possible implementations of the present embodiment further include a combination of the case g and the case h.

Specifically, for example, as shown in fig. 7l, the second resource includes slot 1 and slot 2, 14 OFDM symbols including index 0 to index 13 in each of time domains in slot 1 and slot 2, and 5 RBs including index 2 to index 6 in each of frequency domains; overlapping resources in slot 1 and slot 2, the first indication information indicates that the first resource is two RBs with indexes 4 and 5 in the corresponding frequency domain on the OFDM symbol with index 10 in slot 1, and two RBs with indexes 5 and 6 in the corresponding frequency domain on the two OFDM symbols with indexes 2 and 3 in slot 2. And the sizes of overlapped resources of the first resource and the second resource are the same as the sizes of the first resource, the time slot 1 where the overlapped resource is located is set as a first time unit, the time slot 2 is set as a second time unit, and corresponding RBs with indexes of 2 to 6 on OFDM symbols with indexes of 2 of the first time unit and the second time unit are used for bearing the DMRS, and then the resource used for bearing the DMRS in each time unit and the overlapped resource are respectively compared when the third resource is determined.

Specifically, in the first time unit, the overlapping resources do not overlap with the resources carrying the DMRS, so all RBs on the OFDM symbol with index of 10 in the first time unit are not used for transmitting uplink data, that is, RBs with indexes 2 to 6 on the remaining time domain symbols except all RBs on the OFDM symbol with index of 10 in the first time unit can be used for transmitting uplink data. In the second time unit, since the overlapping resources overlap with the resources carrying the DMRS, none of the second time unit is used for transmitting uplink data, that is, the determined third resource includes 13 OFDM symbols with indexes 0 to 9 and 11 to 13 in the time slot 1 in the time domain, and includes all RBs with indexes 2 to 6 in the frequency domain.

It can be understood that, in a specific implementation manner, other combinations of the foregoing "case g" and "case h" may be further included, and the range of the third resource needs to be determined in each timeslot according to the rules of the foregoing "condition 1" to "condition 3" (and the other aspect of the "condition 1" to the other aspect of the "condition 3"), where the specific determination process refers to the description of the foregoing embodiment, and is not repeated.

In various specific implementations of the "case g" and the "case h" provided in this embodiment, in consideration of factors such as a time domain symbol carrying a reference signal, a constant power, a length of the time domain symbol corresponding to an overlapping resource, and the like, the determined third resource includes the following beneficial effects:

First, when considering the resources carrying the DMRS, since the DMRS is an important reference signal for demodulating data, if the first resource reserved in a certain time slot overlaps with the resources carrying the DMRS, part or all of the DMRS in the time slot cannot be transmitted due to the existence of the reserved resources, so that the data demodulation of the time slot is seriously affected, not only is the transmission resources wasted, but also unnecessary energy consumption is caused. Therefore, in this embodiment, in the case that the DMRS resource is carried on the allocated resource and the overlapping resource have an intersection, a manner that the entire time slot is not used for the UE to transmit uplink data is adopted to avoid the occurrence of the situation, and the method ensures that the UE uses all the DMRS resources carried on the UE to transmit demodulation reference signals, so that not only is the data demodulation performance ensured, but also the energy consumption waste caused by that the UE still transmits uplink data when the data cannot be demodulated correctly is avoided.

Second, in order to make the power constant, when the number of frequency domain units of uplink data transmitted by the UE on each time domain symbol is different, whether the frequency domain units are continuous or not, the power may be changed, for example, the power is amplified or reduced, and further, the phase of signals on different time domain symbols by the UE is discontinuous, so once the resource of a certain time domain symbol allocated with the resource overlaps with the reserved resource, all frequency units on the time domain symbol are not used for transmitting uplink data, but the remaining part of the resources still can transmit uplink data, thereby ensuring that the bandwidth transmitted on each time domain symbol is the same and the power is constant.

Thirdly, comparing the total number of time domain symbols corresponding to the overlapped resource with the first preset value or the second preset value, wherein the related resource of the overlapped resource is all frequency units on at least one time domain symbol included in the overlapped resource, if the distance between the two divided parts of resources is shorter, for example, less than or equal to the first preset value or the second preset value, the resource carrying the DMRS on one part of the resources can be used for demodulating not only the data of the part, but also the data of the other part, so that both parts of the resources can be continuously used for transmitting the data; however, if the distance between the two divided resources is longer, for example, greater than the first preset value or the second preset value, the data demodulation performance of the part excluding the DMRS will be seriously degraded, so that in this embodiment, all the resources in the time slot are not used for transmitting uplink data, which not only ensures the data demodulation performance, but also avoids the energy consumption waste caused by that the UE still transmits uplink data when the data cannot be correctly demodulated.

In summary, according to the method provided in this embodiment, after factors such as the size of the resource carrying the DMRS, the constant power, the total number of time domain symbols corresponding to the overlapped resources, and the like are considered, the third resource is determined in a simpler manner, which is convenient for the UE to implement, and ensures the transmission performance of the UE uplink data.

Optionally, in the second to fourth possible implementations, there is also a very simple way to indicate the first resource, specifically, if the first indication information sent by the network device includes only the first symbol, in a case where there is an overlapping resource between the first resource and the second resource, the relevant resource of the overlapping resource is all frequency domain units on the indicated first symbol, and the third resource is the remaining resource after the second resource removes the relevant resource of the overlapping resource. For example, as shown in fig. 7m, the first indication information indicates that the first resource is an OFDM symbol with an index of 7 in the time domain, the related resource of the overlapping resource includes an OFDM symbol with an index of 7 in the time domain, five RBs with an index of 2 to 6 in the frequency domain, and the third resource is determined to be the remaining resource of the second resource after the related resource of the overlapping resource is removed, that is, the third resource is 13 OFDM symbols with indexes of 0 to 6,8 to 13 in the time domain, and each OFDM symbol includes all RBs with indexes of 2 to 6 in the frequency domain.

According to the implementation mode, the terminal equipment can determine the third resource according to the transmission mode of the uplink data or not according to the transmission mode of the uplink data, and the reserved first resource can be indicated through the DCI mode, so that the cost of indication information is small, the indication speed is high, and the efficiency is high.

Optionally, in the embodiment, a specific manner of indicating the first resource by using a bitmap (bitmap) manner in step 101 is described in detail.

Specifically, the first indication information may include bitmap information of one RB level (frequency domain) and bitmap information of one symbol level (time domain). The UE may determine the reserved first resource according to the first indication information, for example, as shown in fig. 8a, the RB-level bitmap is "0011100", where each bit represents one RB, the symbol-level bitmap is "00000001000000", and each bit represents one OFDM symbol in one slot; a bit value of "1" represents that the RB/symbol is an RB/symbol included in the reserved resource, and a bit value of "0" represents that the RB/symbol is not an RB/symbol included in the reserved resource. According to the indication information, both the bitmap information of RB level and the bitmap information of symbol level indicate a resource of "1", which is the reserved first resource.

Alternatively, the granularity (or bundling size) of the indication of the RB-level bitmap may be an RB group, where one RBG may include a plurality of consecutive RBs, and where each bit of the RB-level bitmap represents whether one RBG is an RBG included in the reserved resource; the range indicated by the symbol level bitmap may be a bitmap of symbols in one slot, or may be a bitmap of symbols in two or more slots, where the number of bits of the symbol level bitmap may be 14 bits or more, for example, may be 28 bits or more.

Optionally, the indication information may further include a slot level bitmap information, and the period level bitmap information indicates reserved resources together with RB level bitmap information and symbol level bitmap information. Wherein each bit of the slot level bitmap information represents "a period of one symbol level bitmap", e.g., the symbol level bitmap indicates a symbol bitmap in one slot, and one bit of the slot level bitmap information represents one slot; if the symbol level bitmap indicates a symbol bitmap in two slots, one bit in the slot level bitmap information represents two slots. For example, as shown in fig. 8b, the slot level indication information is "110". According to the indication information, the bitmap information at RB level, the bitmap information at symbol level, and the slot level indication information all indicate a resource of "1", which is the reserved first resource.

Alternatively, the bitmap at RB level may be a bitmap based on a common RB grid, or may be a bitmap based on an RB grid of a UE partial Bandwidth (BWP).

Alternatively, the manner in which the base station transmits the first indication information may be public, such as being broadcast carried in a system information block (system information block, SIB); each UE may be configured through RRC signaling.

Optionally, the base station may configure a plurality of reserved resources of RB-symbol level for the UE; the final reserved resource should be a union of multiple RB-symbol level reserved resources.

According to the method provided by the embodiment, the network equipment configures reserved resources in the uplink transmission process for the terminal equipment through the first indication information, so that the terminal equipment does not carry out uplink transmission on the reserved first resources and the overlapped resources or related resources of the overlapped resources of the allocated second resources, and the remaining resources of the overlapped resources or related resources of the overlapped resources in the second resources can be continuously used as uplink transmission, thereby effectively utilizing the transmission resources, avoiding the mutual overlapping of the transmission resources between the terminal equipment, improving the resource utilization rate when the repeated transmission times are more in the uplink transmission process of the terminal equipment, and improving the transmission efficiency and reliability.

Correspondingly, the embodiment also provides a data transmission method, which is applied to network equipment such as a base station, and specifically, referring to fig. 9, the method includes:

step 201: the network device generates first indication information, wherein the first indication information is used for indicating the terminal device to reserve the first resource.

Step 202: and the network equipment sends the first indication information to the terminal equipment.

Optionally, the network device sending the first indication information includes: the network device broadcasts or sends the first indication information through RRC signaling, where the first indication information may indicate the first resource in a bitmap manner, and the specific indication manner is described in the foregoing embodiment, which is not described in detail in this embodiment.

In addition, the method further comprises: the network device sends DCI, or the preconfigured manner configures the second resource for the terminal device, and in this embodiment, the configuration manner of the second resource is not limited.

Step 203: the network equipment determines a third resource according to the first resource and the second resource, wherein the second resource is a resource used for the terminal equipment to send uplink data, the third resource is a residual resource of the second resource except overlapping resources or related resources of the overlapping resources, and the overlapping resources are resources of the first resource and the second resource.

Step 204: and the network equipment receives the uplink data sent by the terminal equipment in the third resource.

The terminal equipment is equipment with enhanced coverage or equipment needing repeated transmission for a plurality of times, and/or the number of times that the terminal equipment needs repeated transmission is greater than a preset number of times.

Optionally, in a specific implementation, step 203 includes: the network equipment determines the third resource according to the first resource, the second resource and the transmission mode of the uplink data, wherein the transmission mode of the uplink data is a conversion precoding transmission mode.

Optionally, in another specific implementation, step 203 includes: the network device determines the third resource according to the first resource, the second resource and the transmission mode of uplink data, wherein the third resource is the residual resource of the second resource except for the overlapping resource, and the transmission mode of the uplink data is a non-conversion precoding transmission mode.

Wherein, optionally, the overlapping resources comprise at least one symbol in the time domain; wherein the related resources of the overlapping resources include the at least one symbol in a time domain and include all frequency domain resources corresponding to the at least one symbol in a frequency domain; the third resource is the remaining resource of the second resource excluding the related resource of the overlapping resource.

Optionally, the overlapping resource includes at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is the residual resource of the second resource except the related resource of the overlapped resource, and the related resource of the overlapped resource comprises all frequency domain units corresponding to the first symbol.

And the fourth resource is a resource obtained by removing the overlapping resource from the second resource, wherein the fourth resource is a discontinuous frequency domain unit which is at least one frequency domain unit existing between the first frequency domain unit and the second frequency domain unit on the first symbol.

Optionally, the overlapping resource includes at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is the residual resource of the second resource except for the related resource of the overlapped resource, and the related resource of the overlapped resource comprises other frequency domain units except for the first continuous frequency domain unit on the first symbol.

The fourth resource is a resource obtained by removing the overlapping resource from the second resource, and the discontinuous frequency domain unit refers to at least one frequency domain unit existing between the first frequency domain unit and the second frequency domain unit on the first symbol; the first continuous frequency domain unit is the continuous frequency domain unit with the largest resource occupied by the first symbol in the fourth resource, or is the continuous frequency domain unit with the highest or lowest frequency on the first symbol in the fourth resource.

Optionally, the overlapping resource includes at least one second symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is the remaining resource of the second resource excluding the related resource of the overlapping resource, and the related resource of the overlapping resource includes the overlapping resource on the second symbol.

And the fourth resource is a resource obtained by removing the overlapping resource from the second resource, wherein the fourth resource does not have a discontinuous frequency domain unit on the second symbol, and the discontinuous frequency domain unit refers to at least one frequency domain unit which is arranged between the first frequency domain unit and the second frequency domain unit on the second symbol.

Optionally, the overlapping resource includes at least one first symbol in a time domain, and includes at least one frequency domain unit in a frequency domain, where a time unit where the first symbol is located is a first time unit; the third resource is the remaining resource of the second resource excluding the related resource of the overlapping resource, where the related resource of the overlapping resource includes a first time unit where the first symbol is located in a time domain, and includes all frequency domain units corresponding to the first time unit in a frequency domain.

The overlapping resources overlap with resources carrying the first reference signal in the first time unit, and/or the total number of symbols of the first symbols in the first time unit is greater than or equal to a first preset value, or the number of symbols of continuous first symbols in the first time unit is greater than or equal to a second preset value.

Optionally, the overlapping resource includes at least one second symbol in a time domain, and includes at least one frequency domain unit in a frequency domain, where a time unit where the second symbol is located is a second time unit; the third resource is the remaining resource of the second resource excluding the related resource of the overlapping resource, where the related resource of the overlapping resource includes all frequency domain units corresponding to the second symbol in the frequency domain.

Wherein the overlapping resources do not overlap with resources carrying the first reference signal in the second time unit; and/or, the total number of symbols of the second symbols in the second time unit is smaller than a first preset value, or the maximum value of the number of symbols of the continuous second symbols in the second time unit is smaller than a second preset value.

It should be noted that, in this embodiment, various implementation manners of determining the third resource by the network device according to the first resource and the second resource are the same as various implementation manners of determining the third resource by the terminal device (step 102), which are described in detail above, and are not repeated in this embodiment.

Embodiments of the apparatus corresponding to the above-described method embodiments are described below.

Referring to fig. 10, a schematic structural diagram of a data transmission device according to an embodiment of the present application is provided. The apparatus may be a terminal device in the foregoing method embodiment, may also be a network device, or may also be a component, such as a chip, located in the terminal device or the network device. Further, the apparatus may implement all functions of the terminal device in the foregoing embodiment, or may implement all functions of the network device in the foregoing embodiment.

Further, as shown in fig. 10, the apparatus may include: the receiving unit 1001, the processing unit 1002 and the transmitting unit 1003, in addition, the apparatus may further include a storage unit or other units or modules.

On the one hand, when the apparatus is used as a terminal device, the receiving unit 1001 is configured to receive first indication information from a network device, where the first indication information is used to indicate a first resource reserved by the terminal device; the processing unit 1002 is configured to determine a third resource according to the first resource and the second resource, where the second resource is a resource used for the terminal device to send uplink data, the third resource is a remaining resource of the second resource excluding overlapping resources or related resources of the overlapping resources, and the overlapping resources are resources where the first resource overlaps with the second resource; the transmitting unit 1003 is configured to transmit uplink data on the third resource.

Optionally, in a specific implementation manner, the processing unit 1002 is specifically configured to determine the third resource according to the first resource and the second resource, and a transmission manner of uplink data, where the transmission manner of uplink data is a conversion precoding transmission manner.

Optionally, in another specific implementation manner, the processing unit 1002 is specifically configured to determine the third resource according to the first resource and the second resource, and a transmission manner of uplink data, where the third resource is a remaining resource excluding the overlapping resource from the second resource, and the transmission manner of uplink data is a non-conversion precoding transmission manner.

Wherein the overlapping resources comprise at least one symbol in the time domain; wherein the related resources of the overlapping resources include the at least one symbol in a time domain and include all frequency domain resources corresponding to the at least one symbol in a frequency domain; the third resource is the remaining resource of the second resource excluding the related resource of the overlapping resource.

Optionally, the overlapping resource includes at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is the residual resource of the second resource except the related resource of the overlapped resource, and the related resource of the overlapped resource comprises all frequency domain units corresponding to the first symbol; and the fourth resource is a resource obtained by removing the overlapping resource from the second resource, wherein the fourth resource is a discontinuous frequency domain unit which is at least one frequency domain unit existing between the first frequency domain unit and the second frequency domain unit on the first symbol.

Optionally, the overlapping resource includes at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is the residual resource of the second resource except related resources of overlapping resources, and the related resources of the overlapping resources comprise other frequency domain units except the first continuous frequency domain unit on the first symbol; the fourth resource is a resource obtained by removing the overlapping resource from the second resource, and the discontinuous frequency domain unit refers to at least one frequency domain unit existing between the first frequency domain unit and the second frequency domain unit on the first symbol; the first continuous frequency domain unit is the continuous frequency domain unit with the largest resource occupied by the first symbol in the fourth resource, or is the continuous frequency domain unit with the highest or lowest frequency on the first symbol in the fourth resource.

Optionally, the overlapping resource includes at least one second symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is the residual resource of the second resource except related resources of overlapping resources, and the related resources of the overlapping resources comprise the overlapping resources on the second symbol; and the fourth resource is a resource obtained by removing the overlapping resource from the second resource, wherein the fourth resource does not have a discontinuous frequency domain unit on the second symbol, and the discontinuous frequency domain unit refers to at least one frequency domain unit which is arranged between the first frequency domain unit and the second frequency domain unit on the second symbol.

Optionally, the overlapping resource includes at least one first symbol in a time domain, and includes at least one frequency domain unit in a frequency domain, where a time unit where the first symbol is located is a first time unit; the third resource is the residual resource of the second resource except the related resource of the overlapped resource, the related resource of the overlapped resource comprises a first time unit where the first symbol is located in the time domain, and all frequency domain units corresponding to the first time unit are included in the frequency domain; and the overlapping resource and the resource carrying the first reference signal in the first time unit are overlapped, and/or the total number of symbols of the first symbols in the first time unit is greater than or equal to a first preset value, or the number of symbols of continuous first symbols in the first time unit is greater than or equal to a second preset value.

Optionally, the overlapping resource includes at least one second symbol in a time domain, and includes at least one frequency domain unit in a frequency domain, where a time unit where the second symbol is located is a second time unit; the third resource is the residual resource of the second resource except the related resource of the overlapped resource, and the related resource of the overlapped resource comprises all frequency domain units corresponding to the second symbol on the frequency domain; wherein, there is no overlap between the overlapping resources and the resources carrying the first reference signal in the second time unit; and/or, the total number of symbols of the second symbols in the second time unit is smaller than a first preset value, or the maximum value of the number of continuous second symbols in the second time unit is smaller than a second preset value.

Optionally, the first preset value and the second preset value may be the same or different.

The device is equipment with enhanced coverage or equipment needing repeated transmission for a plurality of times, and/or the number of times of repeated transmission is larger than a preset number of times.

Optionally, the preset number of times is 8.

On the other hand, when the apparatus is used as a network device, for example, a base station, the processing unit 1002 is configured to generate first indication information, where the first indication information is used to instruct the terminal device to reserve a first resource; the sending unit 1003 is configured to send the first indication information, the processing unit 1002 is further configured to determine a third resource according to the first resource and the second resource, and the receiving unit 1001 is configured to receive, in the third resource, uplink data sent by the terminal device, where the second resource is a resource used for sending, by the terminal device, uplink data, and the third resource is a remaining resource of the second resource excluding an overlapping resource or a related resource of the overlapping resource, where the overlapping resource is a resource where the first resource overlaps with the second resource.

Optionally, in a specific implementation manner, the processing unit 1002 is further configured to generate second instruction information, where the second instruction information is used to configure the second resource for the terminal device, and the second instruction information may be configured in advance to the terminal device, or dynamically configured and sent to the terminal device through the sending unit 1003.

Optionally, in another specific implementation manner, the processing unit 1002 is specifically configured to determine the third resource according to the first resource and the second resource, and a transmission manner of uplink data, where the transmission manner of uplink data is a conversion precoding transmission manner.

Optionally, the overlapping resource includes at least one symbol in a time domain; wherein the related resources of the overlapping resources include the at least one symbol in a time domain and include all frequency domain resources corresponding to the at least one symbol in a frequency domain; the third resource is the remaining resource of the second resource excluding the related resource of the overlapping resource.

Optionally, the overlapping resource includes at least one first symbol in a time domain, and includes at least one frequency domain unit in a frequency domain, where a time unit where the first symbol is located is a first time unit; the third resource is the residual resource of the second resource except the related resource of the overlapped resource, the related resource of the overlapped resource comprises a first time unit where the first symbol is located in the time domain, and all frequency domain units corresponding to the first time unit are included in the frequency domain; the overlapping resources overlap with resources carrying the first reference signal in the first time unit, and/or the total number of symbols of the first symbols in the first time unit is greater than or equal to a first preset value, or the number of symbols of continuous first symbols in the first time unit is greater than or equal to a second preset value.

Optionally, the overlapping resource includes at least one second symbol in a time domain, and includes at least one frequency domain unit in a frequency domain, where a time unit where the second symbol is located is a second time unit; the third resource is the residual resource of the second resource except the related resource of the overlapped resource, and the related resource of the overlapped resource comprises all frequency domain units corresponding to the second symbol on the frequency domain; wherein the overlapping resources do not overlap with resources carrying the first reference signal in the second time unit; and/or, the total number of symbols of the second symbols in the second time unit is smaller than a first preset value, or the maximum value of the number of symbols of the continuous second symbols in the second time unit is smaller than a second preset value.

In a specific implementation, the embodiment of the application further provides a communication device, and referring to fig. 11, a schematic structural diagram of the communication device is provided in the embodiment of the application. The communication device may be a network device in the foregoing embodiment, may also be a terminal device, or may be a component (e.g., a chip) that may be used for the terminal device. The communication device may implement the functions or operations of the network device and the terminal device in the foregoing embodiments.

As shown in fig. 11, the communication device may include a transceiver 1101, a processor 1102, and a memory 1103, wherein the memory 1103 may be used to store code or data. The transceiver 1101 may include a receiver, a transmitter, an antenna, etc., and the communication device may include more or less components, or may be combined with certain components, or may be arranged with different components, which are not limited in this application.

The processor 1102 is a control center of the communication device, connects various parts of the entire communication device using various interfaces and lines, and executes various functions of the communication device or processes data by running or executing software programs or modules stored in the memory 1103, and invoking data stored in the memory 1103.

Alternatively, the processor 1102 may be comprised of integrated circuits (integrated circuit, ICs), such as a single packaged IC, or may be comprised of packaged ICs that are connected to multiple same or different functions. For example, the processor may include only a central processing unit (central processing unit, CPU), or may be a combination of a GPU, a digital signal processor (digital signal processor, DSP), and a control chip (e.g., baseband chip) in the transceiver module. In various embodiments of the present application, the CPU may be a single operation core or may include multiple operation cores.

Optionally, the processor 1102 includes a processing chip that may include one or more random access memory units, which may be used to store instructions or computer programs.

The transceiver 1101 is configured to establish a communication channel through which a communication device is caused to connect to a communication network, thereby enabling communication transmission between the communication device and other devices. The transceiver may be a module that performs a transceiving function. For example, the transceiver may include a wireless local area network (wireless local area network, WLAN) module, a bluetooth module, a baseband (baseband) module, etc. communication module, and a Radio Frequency (RF) circuit corresponding to the communication device, for performing wireless local area network communication, bluetooth communication, infrared communication, and/or cellular communication system communication, such as wideband code division multiple access (wideband code division multiple access, WCDMA) and/or high speed downlink packet access (high speed downlink packet access, HSDPA). The transceiver is used to control communication of components in the communication device and may support direct memory access (direct memory access).

In various embodiments of the present application, the various transceiver modules in the transceiver are typically in the form of integrated circuit chips (integrated circuit chip) and may be selectively combined without necessarily including all transceiver modules and corresponding antenna groups. For example, the transceiver may include only a baseband chip, a radio frequency chip, and a corresponding antenna to provide communication functions in a cellular communication system. The communication means may be connected to a cellular network (cellular network) or the internet (internet) via a communication connection established by a transceiver, such as a wireless local area network access or a WCDMA access.

The memory 1103 may include volatile memory (RAM), such as random access memory (random access memory); non-volatile memory (non-volatile memory) such as flash memory (flash memory), hard disk (HDD) or Solid State Drive (SSD) may also be included; the memory may also comprise a combination of the above types of memories. The memory may store a program or code or data, and the processor 1102 in the communication device may implement the functions of the communication device by executing the program or code.

In the embodiment of the present application, the processor 1102 and the transceiver 1101 may be separately or coupled to implement all or part of the steps in the data transmission method in the foregoing method embodiment.

For example, when the communication device is used as a terminal device in the foregoing embodiment, such as a UE, the transceiver 1101 may receive first indication information from a network device, the processor 1102 determines a third resource according to the first resource and a second resource, and transmits uplink data on the third resource through the transceiver 1101, where the second resource is a resource for the terminal device to transmit uplink data, and the third resource is a remaining resource of the second resource excluding overlapping resources or related resources of overlapping resources, and the overlapping resources are resources where the first resource overlaps with the second resource.

When the communication device is used as a network device in the foregoing embodiment, such as a base station, the processor 1102 generates first indication information, where the first indication information is used to instruct the terminal device to reserve a first resource; the first indication information is sent through the transceiver 1101, the processor 1102 further determines a third resource according to the first resource and the second resource, where the third resource is a remaining resource of the second resource excluding overlapping resources or related resources of overlapping resources, and receives uplink data sent by the terminal device in the third resource through the transceiver 1101.

Further, the functions to be implemented by the receiving unit 1001 and the transmitting unit 1003 in fig. 10 may be implemented by the transceiver 1101 of the communication device or by the transceiver 1101 controlled by the processor 1102, and the functions to be implemented by the processing unit 1002 may be implemented by the processor 1102.

Further, the present application provides a computer storage medium, where the computer storage medium may store a program, and the program may include some or all of the steps in each embodiment of the data transmission method provided in the present application when executed. The storage medium may be a magnetic disk, an optical disk, a read-only memory ROM, a random access memory RAM, or the like.

In the above embodiments, it may be implemented in whole or in part 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 comprises one or more computer instructions, such as handover instructions, which, when loaded and executed by a computer, produce, in whole or in part, a process or function in accordance with the various embodiments of the present application. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus.

The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a network node, computer, server, or data center to another site, computer, or server by wire or wirelessly.

The computer readable storage medium may be any available medium that can be accessed by a computer or a storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium such as a floppy disk, hard disk, magnetic tape, optical medium (e.g., DVD), or semiconductor medium such as a solid state disk SSD, etc.

The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It will be apparent to those skilled in the art that the techniques in the embodiments of the present application may be implemented in software plus the necessary general hardware platform. Based on such understanding, the technical solutions in the embodiments of the present application may be embodied in essence or what contributes to the prior art in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments of the present invention.

The same or similar parts between the various embodiments in this specification are referred to each other. In particular, for a network device/node or apparatus device, since it is substantially similar to the method embodiments, the description is relatively simple, as far as the description in the method embodiments is concerned.

The above-described embodiments of the present application are not intended to limit the scope of the present application.

Claims

1. A method of data transmission, the method comprising:

the terminal equipment receives first indication information from the network equipment, wherein the first indication information is used for indicating first resources reserved by the terminal equipment;

The terminal equipment determines a third resource according to the first resource, the second resource and the transmission mode of uplink data, wherein the second resource is a resource for the terminal equipment to send the uplink data, the third resource is a residual resource of the second resource except overlapping resources or related resources of the overlapping resources, and the overlapping resources are resources overlapped by the first resource and the second resource;

the terminal equipment sends uplink data on the third resource;

if the transmission mode of the uplink data is a non-conversion precoding transmission mode, the third resource is the remaining resource except the overlapping resource in the second resource;

and if the transmission mode of the uplink data is a conversion precoding transmission mode, the third resource is the residual resource of the second resource except for the related resource of the overlapped resource, wherein the related resource of the overlapped resource comprises at least one symbol in a time domain and comprises all frequency domain resources corresponding to the at least one symbol in a frequency domain.

2. The method of claim 1, wherein the overlapping resources comprise at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain;

The third resource is the residual resource of the second resource except the related resource of the overlapped resource, and the related resource of the overlapped resource comprises all frequency domain units corresponding to the first symbol;

3. The method of claim 1, wherein the overlapping resources comprise at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain;

the third resource is the residual resource of the second resource except related resources of overlapping resources, and the related resources of the overlapping resources comprise other frequency domain units except the first continuous frequency domain unit on the first symbol;

the fourth resource is a resource obtained by removing the overlapping resource from the second resource, and the discontinuous frequency domain unit refers to at least one frequency domain unit existing between the first frequency domain unit and the second frequency domain unit on the first symbol;

The first continuous frequency domain unit is the continuous frequency domain unit with the largest resource occupied by the first symbol in the fourth resource, or is the continuous frequency domain unit with the highest or lowest frequency on the first symbol in the fourth resource.

4. A method according to any of claims 1 to 3, characterized in that the overlapping resources comprise at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain;

the third resource is the residual resource of the second resource except related resources of overlapping resources, and the related resources of the overlapping resources comprise the overlapping resources on the second symbol;

5. The method of claim 1, wherein the overlapping resources comprise at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain, and wherein a time unit in which the first symbol is located is a first time unit;

The third resource is the residual resource of the second resource except the related resource of the overlapped resource, the related resource of the overlapped resource comprises a first time unit where the first symbol is located in the time domain, and all frequency domain units corresponding to the first time unit are included in the frequency domain;

6. The method according to claim 1 or 5, wherein the overlapping resources comprise at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain, and wherein the time unit in which the second symbol is located is a second time unit;

the third resource is the residual resource of the second resource except the related resource of the overlapped resource, and the related resource of the overlapped resource comprises all frequency domain units corresponding to the second symbol on the frequency domain;

7. The method according to any one of claim 1 to 6, wherein,

the terminal equipment is coverage-enhanced equipment or equipment for repeating transmission for a plurality of times, and/or the number of times of repeating transmission of the terminal equipment is greater than a preset number of times.

8. A method of data transmission, the method comprising:

the network equipment generates first indication information, wherein the first indication information is used for indicating the terminal equipment to reserve first resources;

the network equipment sends the first indication information to the terminal equipment;

the network equipment determines a third resource according to the first resource, the second resource and the transmission mode of uplink data, wherein the second resource is a resource for the terminal equipment to send the uplink data, the third resource is a residual resource of the second resource except overlapping resources or related resources of the overlapping resources, and the overlapping resources are resources overlapped by the first resource and the second resource;

the network equipment receives uplink data sent by the terminal equipment in the third resource;

9. The method of claim 8, wherein the overlapping resources comprise at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain;

10. The method of claim 8, wherein the overlapping resources comprise at least one first symbol in the time domain and at least one frequency domain unit in the frequency domain;

11. The method according to any of claims 8 to 10, wherein the overlapping resources comprise at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain;

12. The method of claim 8, wherein the overlapping resources comprise at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain, and wherein a time unit in which the first symbol is located is a first time unit;

13. The method according to claim 8 or 12, wherein the overlapping resources comprise at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain, and wherein the time unit in which the second symbol is located is a second time unit;

14. The method according to any one of claims 8 to 13, wherein,

15. A data transmission apparatus, the apparatus comprising:

A receiving unit, configured to receive first indication information from a network device, where the first indication information is used to indicate a first resource reserved by a terminal device;

a processing unit, configured to determine a third resource according to the first resource and a second resource, where the second resource is a resource used for the terminal device to send uplink data, the third resource is a remaining resource of the second resource excluding an overlapping resource or a related resource of the overlapping resource, and the overlapping resource is a resource where the first resource overlaps with the second resource;

a sending unit, configured to send uplink data on the third resource;

16. The apparatus of claim 15, wherein the overlapping resources comprise at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain;

17. The apparatus of claim 15, wherein the overlapping resources comprise at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain;

18. The apparatus according to any of claims 15 to 17, wherein the overlapping resources comprise at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain;

and the fourth resource is a resource obtained by removing the overlapping resource from the second resource, wherein the fourth resource does not have discontinuous frequency domain units on the second symbol, and the discontinuous frequency domain units refer to at least one frequency domain unit which is arranged between the first frequency domain unit and the second frequency domain unit on the second symbol.

19. The apparatus of claim 15, wherein the overlapping resources comprise at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain, and wherein a time unit in which the first symbol is located is a first time unit;

and the overlapping resource and the resource carrying the first reference signal in the first time unit are overlapped, and/or the total number of symbols of the first symbols in the first time unit is greater than or equal to a first preset value, or the number of symbols of continuous first symbols in the first time unit is greater than or equal to a second preset value.

20. The apparatus according to claim 15 or 19, wherein the overlapping resources comprise at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain, and wherein the time unit in which the second symbol is located is a second time unit;

wherein, there is no overlap between the overlapping resources and the resources carrying the first reference signal in the second time unit; and/or, the total number of symbols of the second symbols in the second time unit is smaller than a first preset value, or the maximum value of the number of continuous second symbols in the second time unit is smaller than a second preset value.

21. The apparatus according to any one of claims 15 to 20, wherein the apparatus is a coverage enhanced device or a device that performs repeated transmissions a number of times and/or the number of repeated transmissions is greater than a preset number of times.

22. A data transmission apparatus, the apparatus comprising:

the processing unit is used for generating first indication information, wherein the first indication information is used for indicating the terminal equipment to reserve first resources;

a sending unit, configured to send the first indication information to the terminal device;

the processing unit is further configured to determine a third resource according to the first resource and the second resource, where the second resource is a resource used for the terminal device to send uplink data, the third resource is a remaining resource of the second resource excluding overlapping resources or related resources of the overlapping resources, and the overlapping resources are resources where the first resource overlaps with the second resource;

A receiving unit, configured to receive uplink data sent by the terminal device in the third resource;

23. The apparatus of claim 22, wherein the overlapping resources comprise at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain;

24. The apparatus of claim 22, wherein the overlapping resources comprise at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain;

25. The apparatus according to any of claims 22 to 24, wherein the overlapping resources comprise at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain;

26. The apparatus of claim 22, wherein the overlapping resources comprise at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain, and wherein a time unit in which the first symbol is located is a first time unit;

27. The apparatus according to claim 22 or 26, wherein the overlapping resources comprise at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain, and wherein the time unit in which the second symbol is located is a second time unit;

28. The apparatus according to any of claims 22 to 27, wherein the terminal device is a coverage enhanced device or a device that performs repeated transmissions a number of times, and/or wherein the number of repeated transmissions by the terminal device is greater than a preset number of times.

29. A communication device comprising a processor and a memory, the processor being coupled to the memory, characterized in that,

The memory is used for storing instructions;

the processor configured to execute the instructions in the memory, causing the communication device to perform the method of any one of claims 1 to 14.

30. A computer readable storage medium having instructions stored therein, which when executed, implement the method of any one of claims 1 to 14.