CN111787613A

CN111787613A - Data transmission method, device and equipment

Info

Publication number: CN111787613A
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: 2020-10-16
Anticipated expiration: 2039-04-04
Also published as: WO2020200193A1; CN111787613B

Abstract

The application provides a data transmission method, a device and equipment, wherein the method comprises the following steps: the method comprises the steps that terminal equipment receives first indication information from network equipment, wherein the first indication information is used for indicating a first resource reserved by the terminal equipment; 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 remaining resource excluding an overlapping resource or a related resource of the overlapping resource in the second resource, and the overlapping resource is a resource where the first resource and the second resource overlap; 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 reliability.

Description

Data transmission method, device and equipment

Technical Field

The present application 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 exchanged between a User Equipment (UE) and a base station (g Node B, gNB) is carried through a physical channel. Data sent by the UE, that is, uplink data, may be generally carried through a Physical Uplink Shared Channel (PUSCH); control information, that is, uplink control information, transmitted by the UE may be generally carried through a Physical Uplink Control Channel (PUCCH). In addition, the UE may also transmit a Sounding Reference Signal (SRS), and the gNB may estimate 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 edge, basement, etc., path loss or penetration loss of radio signal propagation is very severe, which may possibly cause that the gNB or UE cannot correctly receive the radio signal, and therefore, coverage enhancement means often needs 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 much lower than that of the gNB, for example, the transmit power of a gNB with a bandwidth of 20MHz may reach 46 dBm. Here, 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 uplink transmissions is repeated transmissions. For the uplink transmission case, the gNB configures the UE with a certain number of repeated transmissions so that the UE repeatedly transmits data multiple times. Correspondingly, the gNB performs combined detection or demodulation on data information, control information or SRS sent by the UE for multiple times, so that the detection performance or demodulation performance is improved, and the coverage enhancement effect is further achieved.

Currently in NR, for uplink transmission, the gbb indicates that the UE repeats the transmission a maximum number of times of 8. Where NR may support frequency hopping, see fig. 1a, and non-frequency hopping, see fig. 1 b. Typically, a transmission is a transmission in one slot (slot); and for the transmission of multiple repetitions, the transmission is carried out in multiple time slots, and the range of the used time-frequency resources is the same in each time slot. For example, in uplink scheduling, referring to fig. 1b, the gNB schedules the UE to transmit the PUSCH by sending Downlink Control Information (DCI), where the DCI indicates that a time domain resource used when the UE initially transmits includes a plurality of consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols in one slot, and the frequency domain resource includes 4 consecutive Resource Blocks (RBs), and the UE transmits the PUSCH using the same number and position of OFDM symbols and RB resources in one slot in a subsequent repeated transmission.

In an ideal situation, although 8 times of transmission repetition can achieve a certain magnitude of signal coverage enhancement, with a theoretical gain of 9dB, in practice, the signal may need a greater magnitude of enhancement, for example, several tens of dB, and thus may need to be transmitted repeatedly up to hundreds of times. However, since "the time-frequency resource range used in each time slot is the same" in NR, this will result in "the resource that can be allocated to one UE for repeated transmission is the intersection of the available resources in each time slot", which will cause a great limitation to the resource scheduling for UE for repeated uplink transmission.

Specifically, as shown in fig. 2, in UEs 1 to 5, only UE1 needs to perform repeated transmission, and when the base station schedules UE1 to perform PUSCH repeated transmission, since it needs to be ensured that uplink resources for UE1 to repeatedly transmit PUSCH do not overlap with uplink resources for transmission by other UEs 2 to UE5 to generate interference, PUSCH resources available for UE1 cannot have an overlapping region with transmission resources of other UEs in any time slot, thereby greatly limiting uplink transmission resources of UE1, and causing a decrease in an effective transmission rate of uplink transmission by UE 1. Furthermore, the remaining free resources are not fully utilized, resulting in a low resource utilization.

Disclosure of Invention

The application provides a data transmission method, a data transmission device and data transmission equipment, which can improve the PUSCH repeated transmission efficiency of 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 method comprises the steps that terminal equipment receives first indication information from network equipment, wherein the first indication information is used for indicating a first resource reserved by the terminal equipment; the terminal device determines 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 excluding an overlapping resource or a related resource of the overlapping resource in the second resource, and the overlapping resource is a resource where the first resource and the second resource overlap; and the terminal equipment transmits 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 perform uplink transmission on overlapped resources of the reserved first resources and the allocated second resources or related resources of the overlapped resources, and the remaining resources of the second resources except the overlapped resources or the related resources of the overlapped resources can be continuously used for uplink transmission, thereby effectively utilizing the transmission resources, not only avoiding the mutual overlapping of the transmission resources among the terminal equipment, but also improving the resource utilization rate when the number of repeated transmissions in the uplink transmission process of the terminal equipment is 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: and 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 pre-coding 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: and 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 third resource is the residual resource except the overlapped resource in the second resource, and the transmission mode of the uplink data is a non-conversion pre-coding transmission mode. Under the non-conversion pre-coding transmission mode, the terminal equipment can use discontinuous frequency domain units to transmit uplink data, so that all the residual resources are used as third resources to be used for uplink transmission after overlapping resources are removed, 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 resource of the overlapped resource comprises the at least one symbol in time domain and comprises all frequency domain resources corresponding to the at least one symbol in frequency domain; the third resource is a remaining resource of the second resources excluding a resource related to the overlapping resource.

With reference to the first aspect, in a further implementation manner of the first aspect, the overlapping resources include at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is a remaining resource of the second resource excluding a related resource of the overlapping resource, where the related resource of the overlapping resource includes all frequency domain units corresponding to the first symbol; the discontinuous frequency domain units are at least one frequency domain unit apart from the first frequency domain unit and the second frequency domain unit on the first symbol. All frequency domain units on the time domain symbols corresponding to the overlapped resources are not used as resources for the terminal equipment to transmit uplink data, and all frequency domain units corresponding to the remaining time domain symbols are used for transmitting the uplink data, so that the continuity of the frequency domain units on any remaining symbol is ensured, and the terminal equipment is also ensured that the transmitting power of each time domain symbol is consistent when the terminal equipment transmits 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 implement.

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 resources include at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is a remaining resource of the second resource excluding a related resource of the overlapping resource, where the related resource of the overlapping resource includes other frequency domain units excluding the first continuous frequency domain unit on the first symbol; a discontinuous frequency domain unit exists in the fourth resource on the first symbol, the fourth resource is the second resource except the overlapping resource, and the discontinuous frequency domain unit is at least one frequency domain unit which is separated between the first frequency domain unit and the second frequency domain unit on the first symbol; the first continuous frequency domain unit is a continuous frequency domain unit occupying the largest resource on the first symbol in the fourth resource, or is a continuous frequency domain unit having the highest or lowest frequency on the first symbol in the fourth resource.

On at least one time domain symbol corresponding to the overlapped resources, if a discontinuous frequency domain unit appears in the frequency domain unit on the time domain symbol, the maximum continuous frequency domain unit in the time domain symbol is reserved, or the highest or lowest continuous frequency domain unit is used for transmitting uplink data, so that the continuity of the frequency domain unit on any time domain symbol is ensured, and the transmission efficiency of the uplink resources and the utilization rate of the residual resources are improved.

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 resources include at least one second symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is a remaining resource of the second resource excluding a resource related to an overlapping resource, where the resource related to the overlapping resource includes the overlapping resource on the second symbol; the fourth resource is the resource of the second resource excluding the overlapping resource, and the discontinuous frequency domain unit is at least one frequency domain unit apart from 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 resources, if the frequency domain units on the time domain symbol are continuous frequency domain units, the continuous frequency domain units are used for transmitting uplink data, so that the transmission efficiency of the uplink resources and the utilization rate of the residual resources 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 includes at least one frequency domain unit in a frequency domain, where a time unit in which the first symbol is located is a first time unit; the third resource is the remaining resource of the second resource except the related resource of the overlapped resource, and the related resource of the overlapped resource includes the first time unit where the first symbol is located in the time domain and includes all frequency domain units corresponding to the first time unit in the frequency domain; the overlapped resource overlaps with a resource carrying a first reference signal in the first time unit, and/or the total number of symbols of a first symbol in the first time unit is greater than or equal to a first preset value, or the number of symbols of consecutive first symbols in the first time unit is greater than or equal to a second preset value.

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

When the resource bearing the first reference signal and the overlapped resource have intersection, and/or the total number of the symbols of the corresponding first symbol of the overlapped resource is greater than or equal to a first preset value, or the number of the symbols of the continuous first symbol 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 symbol is located 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 the fact that the uplink data is still transmitted when the data in the first time unit cannot be correctly demodulated 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, includes 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 a remaining resource of the second resource excluding a 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 a frequency domain; wherein the overlapping resources do not overlap with resources carrying a first reference signal in the second time unit; and/or the total number of the 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 the 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 mode ensures the integrity of the first reference signal in the second time unit, and enables the first reference signal to be used for channel estimation of one or more parts divided by the first resource in the second time unit, thereby ensuring the demodulation performance of 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 device with enhanced coverage or a device that performs multiple transmission, and/or the number of times that the terminal device performs multiple 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 a first resource; 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 used for the terminal device to send uplink data, the third resource is a remaining resource excluding an overlapping resource or a resource related to the overlapping resource in the second resource, and the overlapping resource is a resource where the first resource and the second resource overlap.

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: and 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 pre-coding 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: and 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 third resource is the residual resource except the overlapped resource in the second resource, and the transmission mode of the uplink data is a non-conversion pre-coding 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 resource of the overlapped resource comprises the at least one symbol in time domain and comprises all frequency domain resources corresponding to the at least one symbol in frequency domain; the third resource is a remaining resource of the second resources excluding a resource related to the overlapping resource.

With reference to the second aspect, in a further implementation manner of the second aspect, the overlapping resources include at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is a remaining resource of the second resource excluding a related resource of the overlapping resource, where the related resource of the overlapping resource includes all frequency domain units corresponding to the first symbol; the discontinuous frequency domain units are at least one frequency domain unit apart from 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 resources include at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is a remaining resource of the second resource excluding a related resource of the overlapping resource, where the related resource of the overlapping resource includes other frequency domain units excluding the first continuous frequency domain unit on the first symbol; a discontinuous frequency domain unit exists in the fourth resource on the first symbol, the fourth resource is the second resource except the overlapping resource, and the discontinuous frequency domain unit is at least one frequency domain unit which is separated between the first frequency domain unit and the second frequency domain unit on the first symbol; the first continuous frequency domain unit is a continuous frequency domain unit occupying the largest resource on the first symbol in the fourth resource, or is a continuous frequency domain unit having 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 resources include at least one second symbol in a time domain and at least one frequency domain unit in a frequency domain; the third resource is a remaining resource of the second resource excluding a resource related to an overlapping resource, where the resource related to the overlapping resource includes the overlapping resource on the second symbol; the fourth resource is the resource of the second resource excluding the overlapping resource, and the discontinuous frequency domain unit is at least one frequency domain unit apart from 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 includes at least one frequency domain unit in a frequency domain, where a time unit in which the first symbol is located is a first time unit; the third resource is the remaining resource of the second resource except the related resource of the overlapped resource, and the related resource of the overlapped resource includes the first time unit where the first symbol is located in the time domain and includes all frequency domain units corresponding to the first time unit in the frequency domain; the overlapped resource overlaps with a resource carrying a first reference signal in the first time unit, and/or the total number of symbols of a first symbol in the first time unit is greater than or equal to a first preset value, or the number of symbols of consecutive 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 includes at least one frequency domain unit in a frequency domain, where a time unit in which the second symbol is located is a second time unit; the third resource is a remaining resource of the second resource excluding a 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 a frequency domain; wherein the overlapping resources do not overlap with resources carrying a first reference signal in the second time unit; and/or the total number of the 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 the 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 device with enhanced coverage or a device that performs multiple transmission repetitions, and/or the number of times that the terminal device performs multiple transmission repetitions is greater than a preset number of times.

In a third aspect, an embodiment of the present application provides a data transmission apparatus, where the apparatus is configured to implement the data transmission method in the foregoing first aspect and various implementation manners of the first aspect. 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, or a transmitting unit.

In a fourth aspect, an embodiment of the present application further provides another data transmission apparatus, where the apparatus is configured to implement the data transmission method in the foregoing second aspect and various implementation manners of the second aspect. 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 further provide a communication device, including a processor and a memory, where the processor is coupled to the memory, and the memory is used to store instructions; the processor is configured to invoke the instruction to enable the communication device to execute the data transmission method in the foregoing first aspect and various implementation manners of the first aspect, or the processor is configured to invoke the instruction to enable the communication device to execute the data transmission method in the foregoing second aspect and various implementation manners of the second aspect.

Optionally, the communication device further includes a transceiver, configured to receive or send a message and data of an opposite-end device.

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

In a sixth aspect, this embodiment of the present application further provides a computer-readable storage medium, where instructions are stored in the storage medium, and when the instructions are executed on a computer or a processor, the instructions are configured to perform the methods in the foregoing first aspect and various implementations of the first aspect, or to perform the methods in the foregoing second aspect and various implementations of the second aspect.

In a seventh aspect, this application embodiment further provides a computer program product, where the computer program product includes computer instructions, and when the instructions are executed by a computer or a processor, the method in the foregoing first aspect and various implementations of the first aspect may be implemented, or the method in the foregoing second aspect and various implementations of the second aspect may be implemented.

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 methods in the foregoing first aspect and various implementations of the first aspect, or to implement the methods in the foregoing second aspect and various implementations of the second aspect; wherein the interface circuit is configured to communicate with other modules outside the system-on-chip.

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, and the first communication apparatus may be the apparatus in the third aspect, and is configured to implement the data transmission method in the first aspect and various implementation manners of the first aspect; the second communication device may be the device according to the fourth aspect, and is 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.

In the method provided by this embodiment, the network device configures, by using the first indication information, the reserved resource in the uplink transmission process for the terminal device, so that the terminal device does not perform uplink transmission on the overlapped resource of the reserved first resource and the allocated second resource or the resource related to the overlapped resource, and the remaining resource excluding the overlapped resource or the resource related to the overlapped resource in the second resource can continue to be used for uplink transmission, thereby effectively utilizing the transmission resource, not only avoiding the mutual overlapping of the transmission resources between the terminal devices, but also improving the utilization rate of the resource when the number of times of repeated transmission is large in the uplink transmission process of the terminal device, and improving the transmission efficiency and reliability.

Drawings

Fig. 1a is a schematic diagram of a UE performing frequency hopping repeat transmission according to the present application;

fig. 1b is a schematic diagram of a UE performing non-frequency hopping repeat transmission according to the present application;

fig. 2 is a schematic diagram of uplink transmission performed by multiple UEs according to the present application;

fig. 3 is a schematic view of a scenario of a base station and multiple 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 illustrating a reserved first resource according to an embodiment of the present application;

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

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

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

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

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

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

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

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

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

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

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

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

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

fig. 8b is another schematic diagram illustrating a first resource indicated 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 make the technical solutions in the embodiments of the present application better understood and make the above objects, features and advantages of the embodiments of the present application more comprehensible, the technical solutions in the embodiments of the present application are described in further detail below with reference to the accompanying drawings.

Before describing the technical solution of the embodiment of the present application, an application scenario of the embodiment of the present application is first described with reference to the drawings.

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

As shown in fig. 3, in a communication system, comprising a network device and at least one terminal device, the network device may be a Base Station (BS), and further, the base station may be a Base Transceiver Station (BTS) in a global system for mobile communication (GSM) or Code Division Multiple Access (CDMA), a base station (NodeB) in a Wideband Code Division Multiple Access (WCDMA), an evolved node b (eNB/e-NodeB) in LTE, or a next generation LTE evolved node b (ng-eNB), or a NR base station (gNB), or, a base station in a future mobile communication system or an access node in a wireless fidelity (WiFi) system, and the like, the embodiments of the present application do not limit the specific technology and the specific device form 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 refer to a device providing service and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing device connected to a wireless modem, such as a wireless terminal.

Further, the wireless terminal, which may be a mobile terminal such as a mobile telephone (or so-called "cellular" telephone) and a computer having a mobile terminal, e.g., a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more nodes via a Radio Access Network (RAN), which may exchange language and/or data with the RAN. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (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), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), a user equipment (user device), or a user equipment (user equipment, UE), and the like.

In this embodiment, as shown in fig. 3, only 6 types of UEs are illustrated, which are: UE1 vehicle, UE2 router, UE3 gas station, UE4 coffee machine, UE5 cell phone, and UE6 printer. The base station and the UEs 1-6 form a communication system. In the communication system, the UEs 1 to 6 may transmit uplink data to the base station, and the base station needs to receive the uplink data transmitted by the UEs 1 to 6. In addition, the UEs 4 to 6 may also form a communication system, and in the communication system, the base station may send downlink information to the UE1, the UE2, the UE3, the UE5, and the like; UE5 may also send downlink information to UE4 and UE 6.

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

Before introducing the technical solution of the present application, two ways of Uplink (UL) transmission of UE in the NR system are briefly introduced.

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

In the NR protocol, a transmission scheme of "non-conversion precoding" is a transmission scheme based on cyclic prefix orthogonal frequency division multiplexing (CP-OFDM). The transmission scheme may be understood as a transmission scheme when the precoding for conversion (transformational) is not used or a transmission scheme when the precoding for conversion (transformational) is not enabled (english). For such transmission scheme, there is no limitation on whether the transmission resources used by the UE are consecutive in the frequency domain, in other words, the UE may transmit using consecutive resource units in the frequency domain, or may transmit using discontinuous resource units, where the discontinuous resource units are at least one resource unit between two resource units or at least one resource unit apart from two resource units. The resource unit may be a Resource Block (RB) in the frequency domain, or a Resource Block Group (RBG) composed of a plurality of consecutive RBs, or a Resource Element (RE) or a Resource Element Group (REG).

The second transmission mode is as follows: inverting precoding

In the NR protocol, a transmission scheme of "transform precoding" is a transmission scheme based on discrete Fourier transform-spread-orthogonal frequency division multiplexing (DFT-s-OFDM). The transmission method may be understood as a transmission method when inverse precoding is used or a transmission method when inverse precoding is enabled (english). This transmission scheme requires that the transmission resource units used by the UE are contiguous in the frequency domain. For example, for PUSCH transmission, since the transmission resource units used by the PUSCH transmission are generally in the granularity (or unit) of RB or RBG in the frequency domain, transmission of PUSCH in this transmission scheme 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 transmission resource used by the terminal equipment when the terminal equipment carries out 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 uplink transmission according to the first resource and the allocated second resource, and the uplink transmission resource determined by the method utilizes more idle resources compared with the existing method, so that more uplink data can be transmitted, the utilization rate of the uplink resource is improved, or the coding code rate is reduced under the condition of keeping the transmission rate 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.

Optionally, the first indication information may be higher layer signaling, for example, Radio Resource Control (RRC) signaling.

Optionally, the first indication information may be indicated by 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.

Optionally, as shown in fig. 5, the first resource 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 an indication manner of multiplexing an RB-symbol level reserved resource of a general Downlink (DL), or the first indication information may indicate only time domain symbol information, and the first resource may be all frequency domain resources corresponding to a 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 an RE level, or may also be a reserved resource in another form, for example, a union of a plurality of resource block symbol level reserved resources, which is not limited in this application.

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

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 remaining resource excluding an overlapping resource or a resource related to the overlapping resource in the second resource, and the overlapping resource is a resource where the first resource and the second resource overlap.

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

Further, the resource allocation indicated by the DCI means: and in the uplink transmission scheduled by the DCI, the resource 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 allocated resource is similar, and it is different from the allocated resource of DCI in that it does not require the network device to dynamically indicate through DCI, and its transmission resource is configured semi-statically, i.e. through RRC high layer signaling, and is also used without considering the reserved first resource.

And 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 effective, and executes the

steps

102 and 103 when the first resource is effective. That is, when the first resource takes effect, the terminal device transmits the third resource determined according to the first resource and the second resource; and when the first resource is not effective, the terminal equipment determines a third resource according to the second resource and transmits the uplink data on the third resource, wherein the size of the third resource is the same as that of the second resource.

Specifically, the following determination method is used for determining whether the first resource takes effect:

the first judgment mode is as follows: and judging whether the terminal equipment is the equipment with enhanced coverage or the equipment which carries out repeated transmission for multiple times.

The second judgment method is as follows: judging whether the times of repeated transmission is greater than a preset time or not;

the third judgment mode is as follows: and judging whether the terminal equipment is the equipment with enhanced coverage or the equipment for carrying out repeated transmission for multiple times, and whether the times for carrying out repeated transmission are more than the preset times.

Further, in a specific implementation, for the first determination method: the base station informs the UE through RRC signaling, and sets or indicates that the UE is the first type UE, wherein the first type UE is coverage enhancement UE or potential UE which needs to repeatedly transmit uplink data for more times. And it is predefined that the configured first indication information is valid for the first type of UE. Specifically, in one implementation, a base station sends second indication information to a 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 large number of times.

The second judgment method is that the first resource is effective only when the base station indicates that the number of times of repeated transmission of the uplink data of the UE is greater than a preset number of times (the preset number of times is X, and X is greater than or equal to 1 and is a positive integer). Specifically, in an implementation manner, the base station sends third indication information to the UE, where the third indication information is used to indicate a number of times of UE repeat transmission, where the third indication information may be carried in DCI, and the number of times of repeat transmission is set as a positive integer Y. When Y ≦ X, the first resource is invalid, i.e. the first resource is not reserved, e.g. when Y ≦ X ≦ 1, the number of times of the repeated transmission is only one, i.e. there is no repeated transmission, and the first resource is not in effect. Since the transmission time interval required when the number of repeated transmissions is small is short, and the base station can expect the resource usage in a short period, the size of the second resource can be indicated only by means of dynamic signaling (e.g., DCI), so that the first indication information does not need to be configured to indicate the first resource, and the configuration manner is more free and flexible.

Optionally, X ═ 8. The current NR protocol supports the maximum repeat transmission times to be 8, and the first resource does not need to be indicated when the repeat times do not exceed 8; when the number of repeated transmissions Y is greater than or equal to the preset number X, X being 8, the base station cannot determine which symbols of which slots are available for a certain terminal device for a longer time in the future because of a larger uncertainty of resource allocation in subsequent slots, and therefore the first indication information is needed to indicate the first resource.

Optionally, the preset number may also be another number, or a number predefined by a protocol or configured by the base station.

For the third judgment mode, similar to the above "first judgment mode" and "second judgment mode", if and only if the UE is the first type UE and the number of times of performing the repeated transmission is greater than the preset number of times, that is, Y > X, the reserved first resource is valid. Otherwise, the first resource does not take effect, and for a specific implementation process of the "third determination method", reference is made to the above-mentioned related description of the "first determination method" and the "second determination method", which is not described in detail herein in this embodiment.

In the method provided by this embodiment, the network device configures the reserved first resource for the terminal device through the first indication information, so that the terminal device determines the third resource for uplink transmission through the reserved first resource and the allocated second resource, where the third resource is a remaining resource of the second resource except for the overlapping resource or a resource related to the overlapping resource, and uplink data transmission is performed on the remaining resource, so that the transmission resource is effectively utilized, and therefore, not only is mutual overlapping of the transmission resources between the terminal devices avoided, but also the utilization rate of the resource when the number of times of repeated transmission is large in the uplink transmission process of the terminal device is improved, and the transmission efficiency and reliability are improved.

A 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 the following description is made according to different situations.

For convenience of description, first, description is made on representations of various resources in this embodiment, and resources related to this application, for example, a first resource, a second resource, and a third resource, are represented by OFDM symbols in a 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 in the frequency domain as an example, the index numbers (abbreviated as indexes) of the 1 st OFDM symbol to the 14 th OFDM symbol from left to right in the time domain are 0, 1, 2, …, 13 in sequence; the indexes of the 1 st RB to the 7 th RB from the top to the bottom in the frequency domain are 1, 2, 3, …, 7 in order. Fig. 5 also shows a possible schematic diagram of the first resource, wherein the first resource includes an OFDM symbol with an index of 7 in the time domain, and the resource includes three RBs with indexes of 3 to 5 in the frequency domain.

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

in a first possible implementation manner, a terminal device determines a third resource according to a first resource and a second resource, where an overlapped 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 then 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, the size of the third resource is the same as the 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 an RB with an index of 7 in the frequency domain; the second resource includes the entire slot in the time domain, i.e., a total of 14 OFDM symbols with indexes of 0 to 13, and includes all RBs with indexes of 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 comprises 14 OFDM symbols in the time domain and the resource in the frequency domain comprises all RBs with indices of 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 manner of uplink data, where the uplink transmission manner is a non-conversion pre-coding transmission manner.

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

In 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 only according to the first resource and the second resource.

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

The second to fourth possible implementations are explained in detail below in each case.

First, a description is given of a case included in the second possible implementation manner, 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 pre-coding transmission mode, and overlapped resources exist between the first resources and the second resources, wherein the third resources are the residual resources except the overlapped resources in the second resources. Because the terminal device can use discontinuous frequency domain units for transmission in a non-conversion pre-coding transmission mode, when uplink transmission resources are determined, a part of frequency domain units on a certain time domain symbol can be reserved, and therefore 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 includes three RBs with indexes of 3 to 5 in the frequency domain; the second resource includes the whole slot in time domain, that is, 14 total OFDM symbols with indexes of 0 to 13, and all RBs with indexes of 2 to 6 in frequency domain, the overlapping resource includes an OFDM symbol with index of 7 in time domain, and includes three RBs with indexes of 3 to 5 in frequency domain, that is, the size of the overlapping resource is the same as the size of the first resource, then a third resource is determined as the remaining resource of the second resource after the first resource is removed, the determined third resource includes 14 OFDM symbols in time domain, wherein the corresponding frequency domain resources on the 13 total OFDM symbols with indexes of 0 to 6 and 8 to 13 include all RBs with indexes of 2 to 6, and the corresponding frequency domain resources on the OFDM symbol with index of 7 include two RBs with indexes of 2 and 6.

In the method in this embodiment, by using the characteristic that the resource units transmitted in the non-transformed pre-coding transmission mode may be discontinuous in the frequency domain, the remaining resources of the second resource excluding the overlapped resources are used for uplink transmission, so that the remaining resources are utilized to the maximum extent, and the utilization rate of the uplink resources is effectively improved.

Next, various cases included in the third possible implementation will be described. In the implementation manner, the terminal device determines the third resource according to the first resource, the second resource and the fact that the transmission mode of the uplink data is a conversion pre-coding mode; specifically, the possible cases are as follows:

case b

An overlapping resource exists between a first resource and a second resource, the overlapping resource includes at least one symbol in time domain and at least one frequency domain unit in frequency domain, the third resource is the residual resource of the second resource except the related resource of the overlapping resource, the related resource of the overlapping resource includes the at least one symbol in time domain and includes all the frequency domain units corresponding to the at least one symbol in 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 of 0 to 13 in the time domain, and includes all RBs with indexes of 2 to 6 in the frequency domain. The size of the overlapped resource is the same as that of the first resource, and the third resource is determined to be the remaining resource of the second resource except the related resource of the overlapped resource, wherein the related resource of the overlapped resource comprises an OFDM symbol with an index of 7 in the time domain and comprises an RB with an index of 2 to 6 in the frequency domain; the determined third resource includes a total of 13 OFDM symbols with indexes 0 to 6, 8 to 13 in a time domain and includes all RBs with indexes 2 to 6 in a frequency domain.

In the method provided in this embodiment, all frequency domain units on the time domain symbols corresponding to the overlapping resources are not used as resources for the terminal device to transmit uplink data, 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 device ensures that the transmission power of each time domain symbol is consistent when transmitting 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 implement.

Case c

Overlapping resources exist between a first resource and a second resource, the overlapping resources include at least one first symbol in a time domain, the resource of the second resource after the overlapping resources are removed is a fourth resource, when discontinuous frequency domain units exist on the first symbol in the fourth resource, the discontinuous frequency domain units refer to at least one frequency domain unit which exists between a first frequency domain unit and a second frequency domain unit on the first symbol, at this time, the third resource is determined to be the residual resource of the second resource after the related resources of the overlapping resources are removed, and the related resources of the overlapping resources include 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 indexes of 3 and 5 in the frequency domain; the second resource includes the entire slot, i.e., a total of 14 OFDM symbols with indexes of 0 to 13 in the time domain, and includes all RBs with indexes of 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 remaining resource of the second resource except the overlapped resource, the remaining resource comprises 14 OFDM symbols in a time domain, wherein on other symbols except the OFDM symbol with the index of 7, a corresponding frequency domain unit comprises all RBs with the indexes of 2 to 6; on an OFDM symbol with index 7, the corresponding frequency domain unit includes three RBs with

indices

2, 4, and 6. The RB with index 2 in the frequency domain is a first frequency domain unit, the RB with index 4 is a second frequency domain unit, and one RB, that is, the RB with index 3, is spaced between the first frequency domain unit and the second frequency domain unit, and belongs to the discontinuous frequency domain unit, so the related resources of the overlapping resources are all RBs corresponding to the OFDM symbol with index 7, the third resource is the remaining resource excluding all RBs on the OFDM symbol with index 7 in the second resource, that is, the third resource includes 13 total OFDM symbols with index 0 to 6, 8 to 13 in the time domain, and includes all RBs with index 2 to 6 in the frequency domain.

Case d

Overlapping resources exist between a first resource and a second resource, the overlapping resources comprise at least one first symbol in a time domain and at least one frequency domain unit in a frequency domain, the resources of the second resource except the overlapping resources are fourth resources, and when discontinuous frequency domain units exist in the fourth resources on the first symbol, the discontinuous frequency domain units refer to at least one frequency domain unit which exists between the first frequency domain unit and the second frequency domain unit on the first symbol; in this case, the third resource is a remaining resource of the second resource excluding a resource related to the overlapping resource, where the resource related to the overlapping resource includes other frequency domain units excluding the first continuous frequency domain unit on the first symbol.

Wherein the first continuous frequency domain unit is:

(1) a continuous frequency domain unit occupying the largest resource on the first symbol in the fourth resource; or the like, or, alternatively,

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

For example, when the first contiguous frequency domain unit is the case (1) above, 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 in the time domain, i.e., a total of 14 OFDM symbols with indexes of 0 to 13, and includes all RBs with indexes of 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 a remaining resource of the second resource except the overlapped resource, the fourth resource comprises 14 OFDM symbols in a time domain, and a corresponding frequency domain unit comprises all RBs with indexes of 2 to 7 except for OFDM symbols with indexes of 7; on an OFDM symbol with index 7, the corresponding frequency domain unit includes RBs with

indices

2, 4, 6, and 7. Wherein two RBs with indexes of 2 and 4 are discontinuous frequency domain units, a continuous frequency domain unit composed of two RBs with indexes of 6 and 7 occupies the largest resource (or has the longest length) on an OFDM symbol with index of 7, so the continuous frequency domain unit is the first continuous frequency domain unit, the third resource is the remaining resource of the second resource excluding the related resource of the overlapped resource, the related resource of the overlapped resource includes other frequency domain units excluding the first continuous frequency domain unit on the OFDM symbol with index of 7, namely four RBs with indexes of 2 to 5 corresponding to the OFDM symbol with index of 7, the third resource includes 13 OFDM symbols with indexes of 0 to 6 and 8 to 13 in the time domain, and includes all RBs with indexes of 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 is to be understood that the first contiguous frequency domain unit may be one RB, and may also be two or more RBs.

Optionally, when the first contiguous frequency domain unit is in the case of the (2) above, 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 in the time domain, i.e., a total of 14 OFDM symbols with indexes of 0 to 13, and includes all RBs with indexes of 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 a remaining resource of the second resource except the overlapped resource, the fourth resource comprises 14 OFDM symbols in a time domain, wherein a corresponding frequency domain unit comprises all RBs with indexes of 3 to 6 on other symbols except an OFDM symbol with an index of 7; the corresponding frequency domain unit on the OFDM symbol with index 7 includes three RBs with

indexes

3, 4 and 6, where two RBs with index 3 and index 4 constitute a continuous frequency domain unit, and the occupied resource on the OFDM symbol with index 7 is the largest, in which case, the RB with index 6 is determined to be the first continuous frequency domain unit according to the principle of the lowest frequency. Since the RB frequencies decrease from small to large, the frequency corresponding to the RB with the larger index number in the frequency domain is lower, and the related resources of the overlapping resources are three RBs with indexes 3 to 5 in the frequency domain corresponding to the OFDM symbol with index 7. The determined third resource includes 13 OFDM symbols with indexes of 0 to 6, 8 to 13 in the time domain and includes all RBs with indexes of 3 to 6 in the frequency domain; and an RB with an index of 6 (the first contiguous frequency domain unit) 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 is used for transmitting the uplink data, so that the channel quality of the transmitted data is improved to the greatest extent on the premise of ensuring that the continuous frequency domain resources are used on the first symbol, because the uplink transmission is generally performed in the frequency domain unit with the lower frequency, the smaller the propagation loss of the corresponding wireless signal is, and the better the channel quality is.

Furthermore, if the first symbol on the fourth resource comprises two or more consecutive frequency domain units of the same length, as shown in figure 7f, two consecutive frequency domain units are included on the OFDM symbol with index 7, consisting of two RBs with index 2 and index 3, respectively, and a contiguous frequency domain unit consisting of two RBs indexed 5 and 6, here exemplified by the principle of lowest frequency, a contiguous frequency-domain unit consisting of RBs indexed 5 and indexed 6 may be determined as the first contiguous frequency-domain unit, and further determines that the resources related to the overlapping resources include an OFDM symbol with an index of 7 in a time domain, three RBs with indexes of 2 to 4 in a frequency domain, it is determined that the third resource includes a total of 13 OFDM symbols with indices of 0 to 6, 8 to 13 in the time domain and all RBs with indices of 2 to 6 in the frequency domain; and two RBs (the first contiguous frequency domain unit) with index 5 and index 6 in the corresponding frequency domain on the OFDM symbol with index 7. That is, the first continuous frequency domain unit is a continuous frequency domain unit occupying the largest resource on the first symbol in the fourth resource, and when there are a plurality of continuous frequency domain units with the largest resource and the same length, the first continuous frequency domain unit is determined to be the lowest frequency one of the plurality of continuous frequency domain units with the largest resource.

It should be understood that, in the above specific implementation, the first continuous frequency domain unit may also be determined according to the principle of highest frequency. Further, the first contiguous frequency domain unit may also be determined by other predefined rules, such that a segment of contiguous frequency domain units may be uniquely determined from the plurality of contiguous 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 element in the frequency domain; the resource of the second resource excluding the overlapping resource is a fourth resource, and the discontinuous frequency domain units that do not exist in the second symbol of the fourth resource, that is, the discontinuous frequency domain units are continuous frequency domain units, the third resource is the remaining resource of the second resource excluding the overlapping resource, where the related resource of the overlapping resource includes the overlapping resource on the second symbol, in other words, the continuous frequency domain unit corresponding to the second symbol on the fourth resource is 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 includes three RBs with indexes of 3 to 5 in the time domain; the second resource includes the entire slot in the time domain, i.e., a total of 14 OFDM symbols with indexes of 0 to 13, and includes all RBs with indexes of 4 to 7 in the frequency domain; the overlapped resources comprise two RBs with the index of 4 and the index of 5 corresponding to the OFDM symbol with the index of 7 in the time domain, the fourth resource is the residual resource of the second resource after the overlapped resources are removed, the fourth resource comprises 14 OFDM symbols in the time domain, and the corresponding frequency domain unit comprises all the RBs with the indexes of 4 to 7 except for the other symbols with the index of 7; on an OFDM symbol with an index of 7, the corresponding frequency domain unit includes two RBs with an index of 6 and an index of 7, and a continuous frequency domain unit is formed, at this time, there is no discontinuous frequency domain unit on the OFDM symbol with an index of 7, it is determined that the third resource is the second resource except for the remaining resources after two RBs (overlapping resources) with an index of 4 and an index of 5 corresponding to the OFDM symbols with an index of 7, the third resource includes 13 OFDM symbols with indexes of 0 to 6 and 8 to 13 in the time domain, and includes all RBs with indexes of 4 to 7 in the frequency domain correspondingly; 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 this embodiment, on at least one time domain symbol corresponding to the overlapping resource, if the frequency domain units on the time domain symbol are all continuous frequency domain units, a segment of continuous frequency domain units is reserved for transmitting uplink data, thereby improving the transmission efficiency of the uplink resource and the utilization rate of the remaining resources.

Situation f

In addition, in other possible implementations of this embodiment, a combination of two or more of the above cases is also included. For example, the case e is combined with any one of the cases b to d, and specifically, the case e may be combined with the case c, or the case e may be combined with the case b. The following describes an example of a combination of the above cases e and c.

The method comprises the steps that overlapped resources exist between first resources and second resources, when the overlapped resources comprise at least one first symbol and at least one second symbol in a time domain, each first symbol and each second symbol comprise at least one frequency domain unit in a frequency domain, fourth resources are resources of the second resources except the overlapped resources, whether the frequency domain units corresponding to the first symbols and the second symbols meet various conditions or not is judged respectively, whether the corresponding frequency domain units are reserved on the time domain symbols or not is determined respectively, and then the size of the third resources is determined.

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, and optionally, the OFDM symbol with the index of 7 is a first symbol, the OFDM symbol with the index of 4 is a second symbol, the frequency domain unit reserved on the first symbol includes three RBs with indexes of 3 to 5, and the frequency domain unit reserved on the second symbol includes two RBs with the indexes of 5 and 6; and the size of the overlapped resource is the same as the size of the first resource, the remaining resource of the second resource excluding the overlapped resource is a fourth resource, and the fourth resource includes 14 OFDM symbols in the time domain, where a discontinuous frequency domain unit exists on the OFDM symbol with index 7, that is, two RBs with index 2 and index 6 are discontinuous frequency domain units, so it is determined that all RBs on the OFDM symbol with index 7 (first symbol) are not used for transmitting uplink data. For the OFDM symbol with index 4 in the fourth resource, there is no non-contiguous frequency domain unit, that is, three RBs with indices of 2 to 4 in the frequency domain constitute a continuous frequency domain unit, so on the OFDM symbol with index 4, the corresponding continuous frequency domain unit with indices of 2 to 4 in the frequency domain may be used to transmit uplink data, as a part of the third resource, the determined third resource includes 12 OFDM symbols with indices of 0 to 3, 5 to 6, 8 to 13 in the time domain, and correspondingly includes all RBs with indices of 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 index 4.

It is understood that when there are multiple OFDM symbols in the fourth resource, the determination of the third resource needs to consider one by one whether the frequency domain units on each time domain symbol are consecutive, non-consecutive, preset highest or lowest frequencies, etc. so as to be able to determine whether to reserve or delete the frequency domain units on these time domain symbols. In this embodiment, only an example of a combination of the two cases is given, and the combination may further include a combination of more possible cases, and the more possible cases refer to the description of the specific cases in detail, which is not described again 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 only according to the first resource and the second resource.

Specifically, various situations included in the fourth possible implementation are the same as the implementation of various situations in the third possible implementation, for example, the third possible implementation specifically includes the "situations b" to "situation f" described above, where the specific implementation in each situation refers to the description of the foregoing embodiment, and is not described again here.

Further, in a third or fourth possible implementation manner, the terminal device further determines the third resource according to an overlapping condition of a resource used for carrying a reference signal in the second resource and the first resource. Considering that the integrity of the reference signal, the transmission data and/or the time-domain continuity characteristic of the reference signal may affect the demodulation performance of the transmission data, the terminal device further determines the third resource according to an overlapping condition of the resource carrying the reference signal in the second resource and the first resource, and/or a time-domain continuity condition of the remaining resource after the second resource removes the first resource. Specifically, in this embodiment, a specific procedure for determining the third resource is described by taking a DMRS bearer as an example.

Situation g

When the terminal device determines the third resource according to the first resource and the second resource, if the first resource and the second resource have overlapping resources, the overlapping resources include 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 includes at least one frequency domain unit in the frequency domain, and the first time unit carries a first reference signal. Wherein, if any one of the following conditions is satisfied, it is determined that the third resource is a remaining resource of the second resource excluding a related resource of the overlapping resource, where the related resource of the overlapping resource includes the first time unit in a time domain and includes all frequency domain units corresponding to the first time unit in a frequency domain, and the any one of the following conditions includes:

condition 1: the overlapping resources overlap with resources in the first time unit that carry a first reference signal, the first reference signal comprising a DMRS or an SRS;

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

condition 3: the method includes

conditions

1 and 2, that is, overlapping resources overlap with resources carrying a first reference signal in the first time unit, and a total number of symbols of a first symbol in the first time unit is greater than or equal to a first preset value or a number of symbols of consecutive first symbols in the first time unit is greater 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 an index of 2 and an index of 3 in the time domain, and each OFDM symbol correspondingly includes two RBs with an index of 5 and an index of 6 in the time domain; the size of the overlapped resource is the same as that of the first resource, a time slot in which the overlapped resource is located is set as a first time unit, an OFDM symbol with an index of 2 in a time domain in the first time unit, and five RBs with indexes of 2 to 6 in a frequency domain are used for bearing the DMRS. The overlapping resources are overlapped with the resources carrying the DMRS, where the overlapping resources are two RBs with

indexes

5 and 6 in a frequency domain corresponding to an OFDM symbol with index 2, and it is determined that all frequency domain units corresponding to a first time unit are not 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 entire time slot is related resources of the overlapping resources, and a third resource is related resources of the second resource excluding the overlapping resources, where the third resource determined in this implementation is an empty set.

Optionally, in a specific implementation of the above "condition 2", 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 that of the first resource, and the time slot in which the overlapped resource is located is set as a first time unit, where the first time unit may be the time slot in which the overlapped resource is located. Further, in the first time unit, an OFDM symbol with an index of 2 in the time domain, and five RBs with indexes of 2 to 6 in the frequency domain are resources for carrying the DMRS. Assuming that the first preset value is 4, the total number of symbols (4) of the first symbol in the first time unit is equal to the first preset value, and 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 a relevant resource of the overlapping resources, and the third resource is a relevant resource of the second resource excluding the overlapping resources, where the third resource determined in the implementation manner is an empty set.

In addition, still include: when the third resource is determined, it may also be determined whether the number of symbols of the consecutive first symbols in the first time unit is greater than or equal to a second preset value, and if so, all frequency domain units corresponding to the first time unit are not used for uplink transmission. The number of the consecutive first symbols is the number of the time domain symbols corresponding to the consecutive time domain units in all the 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 indices of 4 to 7, so the number of the symbols of the continuous first symbol is 4, and the second preset value may be the same as or different from the first preset value.

Optionally, the first time unit may be a slot (slot) or a subframe (subframe), or may also be another time unit, which is not limited in this embodiment.

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

Situation h

Corresponding to the case g, when the terminal device determines the third resource according to the first resource and the second resource, if there is an overlapping resource between the first resource and the second resource, the overlapping resource includes at least one second symbol in the time domain and at least one frequency domain unit in the frequency domain. Wherein, if any one of the following conditions (that is, another aspect of "condition 1", "condition 2", and "condition 3" in the above case g) is satisfied, it is determined that the third resource is a remaining resource of the second resources excluding a related resource of the overlapping resources, where the related resource of the overlapping resources 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. Specific cases 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 a second preset value;

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

Specifically, for example, as shown in fig. 7k, the overlapped resource includes three OFDM symbols with indexes 4 to 6 in the time domain, and each OFDM symbol includes two RBs with

indexes

5 and 6 in the frequency domain; the overlapping resources are the same size as the first resource. The time slot in which the overlapping resources are located is a first time unit, the OFDM symbol with the index of 2 in the time domain in the first time unit, and the RB with the index of 2 to 6 in the frequency domain are resources for carrying the DMRS, wherein the overlapping resources and the resources for carrying the DMRS are not overlapped, so that the relevant resources of the overlapping resources are determined to be all RBs corresponding to three OFDM symbols with the indexes of 4 to 6 in the time domain, the third resource is the remaining resource of the second resource excluding the relevant resources of the overlapping resources, the third resource is determined to include 11 total OFDM symbols with the indexes of 0 to 3 and 7 to 13 in the time domain, and all RBs with the indexes of 2 to 6 in the frequency domain.

Optionally, it is determined whether the total number of symbols of the first symbol in the first time unit is smaller than a first preset value, for example, the total number of symbols of the first symbol in the first time unit shown in fig. 7k is 3, and if the first preset value is 4 and the total number of symbols of the first symbol is smaller than the first preset value, it is determined 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, and the third resource is a resource remaining after the second resource removes all frequency domain units corresponding to the three first symbols.

Optionally, it is determined whether the number of symbols of consecutive first symbols in a first time unit is smaller than a first preset value, if the first time unit includes multiple consecutive time domain units, each of the consecutive time domain units is composed of at least one first symbol, a target consecutive time domain unit is determined in the multiple consecutive time domain units, the number of first symbols included in the target consecutive time domain unit is the largest, then the number of first symbols corresponding to the target consecutive time domain unit is compared with a second preset value, and finally the size of the third resource is determined according to the comparison result.

Optionally, in a specific embodiment of another aspect of the above "condition 3", another aspect of the "condition 3" is an intersection of another aspect of the aforementioned "condition 1" and another aspect of the "condition 2", that is, only when the another aspect of the "condition 1" and the another aspect of the "condition 2" are both satisfied, it is determined that all frequency domain cells corresponding to the second symbol are not used for transmitting uplink data.

Case i

In addition, optionally, in other possible implementations of this embodiment, a combination of the case g and the case h is further included.

Specifically, for example, as shown in fig. 7l, the second resource includes slot 1 and slot 2, 14 OFDM symbols each including index 0 to index 13 in the time domain in slot 1 and

slot

2, and 5 RBs each including index 2 to index 6 in the frequency domain; overlapping resources in slot 1 and slot 2, the first indication information indicates that the first resource is two RBs with indexes of 4 and 5 in the corresponding frequency domain on the OFDM symbol with index 10 of slot 1, and two RBs with indexes of 5 and 6 in the corresponding frequency domain on the two OFDM symbols with

indexes

2 and 3 of slot 2. And the size of the overlapped resource of the first resource and the second resource is the same as the size of the first resource, a time slot 1 where the overlapped resource is located is set as a first time unit, a time slot 2 is set as a second time unit, and an RB with indexes of 2 to 6 corresponding to OFDM symbols with indexes of 2 of the first time unit and the second time unit is 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 that all RBs on the OFDM symbol with index 10 in the first time unit are not used for transmitting uplink data, that is, except all RBs on the OFDM symbol with index 10 in the first time unit, RBs with indexes 2 to 6 on the remaining time-domain symbols may be used for transmitting uplink data. In the second time unit, since the overlapped resources are overlapped with the resources carrying the DMRS, the second time unit is not used for transmitting uplink data, that is, the determined third resource includes 13 OFDM symbols with indexes 0 to 9, 11 to 13 in the slot 1 in the time domain, and includes all RBs with indexes 2 to 6 in the frequency domain.

It is to be understood that, in a specific implementation manner, other combinations of the "case g" and the "case h" may also be included, and the range of the third resource needs to be determined according to the rules from the "condition 1" to the "condition 3" (and from another aspect of the "condition 1" to another aspect of the "condition 3") in each timeslot, and for a specific determination process, reference is made to the description of the foregoing embodiment, and details are not repeated.

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

firstly, when the resource carrying the DMRS is considered, because the DMRS is an important reference signal for demodulating data, if the first resource reserved in a certain time slot overlaps with the resource carrying the DMRS, part or all of the DMRS in the time slot cannot be transmitted due to the existence of the reserved resource, which further seriously affects the data demodulation of the time slot, not only wastes transmission resources, but also causes unnecessary energy consumption overhead. Therefore, in this embodiment, when the DMRS resources carried on the allocated resources intersect with the overlapping resources, the UE is prevented from transmitting uplink data by using the entire timeslot without using the DMRS resources carried on the allocated resources.

Secondly, in order to make the power constant, when the number of frequency domain units for transmitting uplink data on each time domain symbol by the UE is different, whether the frequency domain units are consecutive or not may cause power variation, such as power amplification or power reduction, and further cause phase discontinuity of signals on different time domain symbols by the UE.

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

In summary, in the method provided in this embodiment, after considering the factors of 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, the third resource is determined in a simplified manner, which is not only convenient for the UE to implement, but also ensures the transmission performance of the uplink data of the UE.

Optionally, in the second to fourth possible implementation manners, there is also a very simple manner to indicate the first resource, specifically, if only a first symbol is included in the first indication information sent by the network device, and when there is an overlapping resource between the first resource and the second resource, the related resources of the overlapping resource are all frequency domain units on the indicated first symbol, and the third resource is a remaining resource of the second resource except the related resources 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 in the time domain of 7, the related resources of the overlapping resources include the OFDM symbol with the index in the time domain of 7, the frequency domain includes five RBs with indexes in the 2 to 6, the third resource is determined to be the remaining resource of the second resource excluding the related resources of the overlapping resources, that is, the third resource includes 13 OFDM symbols with indexes in the 0 to 6 and 8 to 13 in the time domain, and each OFDM symbol includes all RBs with indexes in the 2 to 6 in the frequency domain.

In this implementation manner, the terminal device may 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 may be indicated by a DCI manner, so that the overhead of the indication information is small, the indication speed is high, and the efficiency is high.

Optionally, a detailed description is given to a specific manner in which in step 101 above, the first resource is indicated by using a bitmap (bitmap) manner.

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, an RB level bitmap is "0011100", where each bit represents an RB, and a symbol level bitmap is "00000001000000", where each bit represents an OFDM symbol in a slot; a bit value of "1" represents that the RB/symbol is an RB/symbol that the reserved resource includes, and a bit value of "0" represents that the RB/symbol is not an RB/symbol that the reserved resource includes. According to the indication information, the RB-level bitmap information and the symbol-level bitmap information both indicate a resource of "1", which is a reserved first resource.

Alternatively, the indicated granularity (or referred to as bundling size) of the RB level bitmap may be an RB group, where one RBG may include a plurality of consecutive RBs, and each bit of the RB level bitmap indicates whether one RBG is included in the reserved resource; the range indicated by the symbol-level bitmap may be a bitmap of symbols in one time slot, or may be a bitmap of symbols in two or more time slots, in which case the number of bits of the symbol-level bitmap may be greater than or equal to 14 bits, and may be 28 bits, or more.

Optionally, the indication information may further include a slot level bitmap information, and the cycle level bitmap information indicates the reserved resource together with the RB level bitmap information and the symbol level bitmap information. Wherein each bit of the slot-level bitmap information represents "a period of a symbol-level bitmap", for example, a symbol-level bitmap indicates a symbol bitmap in a slot, and a bit of the slot-level bitmap information represents a slot; if the symbol level bitmap indicates symbol bitmaps 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 RB-level bitmap information, the symbol-level bitmap information, and the slot-level indication information all indicate resources of "1", which are reserved first resources.

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

Optionally, the manner in which the base station sends the first indication information may be common, for example, the first indication information is sent in a System Information Block (SIB) carried in a broadcast manner; the configuration may be performed by RRC signaling for each UE.

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

In the method provided by this embodiment, the network device configures the reserved resource for the terminal device in the uplink transmission process through the first indication information, so that the terminal device does not perform uplink transmission on the overlapped resource of the reserved first resource and the allocated second resource or the related resource of the overlapped resource, and the remaining resource of the second resource excluding the overlapped resource or the related resource of the overlapped resource can be continuously used for uplink transmission, thereby effectively utilizing the transmission resource, not only avoiding the mutual overlapping of the transmission resources between the terminal devices, but also improving the resource utilization rate when the number of times of repeated transmission is large in the uplink transmission process of the terminal device, and improving the transmission efficiency and reliability.

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

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

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

Optionally, the sending, by the network device, the first indication information includes: the network device broadcasts and sends the first indication information, or sends the first indication information through an RRC signaling, where the first indication information may indicate the first resource in a bitmap manner, and specifically, the indication manner refers to the description of the above embodiment, and this embodiment is not described in detail again.

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

Step 203: the network 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 remaining resource excluding an overlapping resource or a related resource of the overlapping resource in the second resource, and the overlapping resource is a resource where the first resource and the second resource overlap.

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

The terminal device is a device with enhanced coverage or a device which needs to repeat multiple transmissions, and/or the number of times that the terminal device needs to repeat the transmissions is greater than a preset number of times.

Optionally, in a specific implementation manner, step 203 includes: and 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 pre-coding transmission mode.

Optionally, in another specific implementation manner, step 203 includes: and 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 third resource is the residual resource except the overlapped resource in the second resource, and the transmission mode of the uplink data is a non-conversion pre-coding transmission mode.

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

The discontinuous frequency domain units are at least one frequency domain unit apart from 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 a remaining resource of the second resource excluding a related resource of the overlapping resource, where the related resource of the overlapping resource includes other frequency domain units excluding the first continuous frequency domain unit on the first symbol.

A discontinuous frequency domain unit exists in the fourth resource on the first symbol, the fourth resource is the second resource except the overlapping resource, and the discontinuous frequency domain unit is at least one frequency domain unit which is separated between the first frequency domain unit and the second frequency domain unit on the first symbol; the first continuous frequency domain unit is a continuous frequency domain unit occupying the largest resource on the first symbol in the fourth resource, or is a continuous frequency domain unit having 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 a remaining resource of the second resource excluding a resource related to the overlapping resource, where the resource related to the overlapping resource includes the overlapping resource on the second symbol.

The fourth resource is the resource of the second resource excluding the overlapping resource, and the discontinuous frequency domain unit is at least one frequency domain unit apart from 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 in which 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 overlapped resource, and the related resource of the overlapped resource includes the first time unit where the first symbol is located in the time domain and includes all frequency domain units corresponding to the first time unit in the frequency domain.

The overlapped resource overlaps with a resource carrying a first reference signal in the first time unit, and/or the total number of symbols of a first symbol in the first time unit is greater than or equal to a first preset value, or the number of symbols of consecutive 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 in which the second symbol is located is a second time unit; the third resource is a remaining resource of the second resource excluding a related resource of the overlapping resource, and the related resource of the overlapping resource includes all frequency domain units corresponding to the second symbol in a frequency domain.

Wherein the overlapping resources do not overlap with resources carrying a first reference signal in the second time unit; and/or the total number of the 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 the 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 the network device determining the third resource according to the first resource and the second resource are the same as the various implementation manners of the terminal device determining the third resource (step 102), and refer to the detailed description of the above various cases, which is not described again in this embodiment.

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

Fig. 10 is a schematic structural diagram of a data transmission device according to an embodiment of the present application. The apparatus may be the 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 also implement all functions of the network device in the foregoing embodiment.

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

On 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 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 excluding an overlapping resource or a related resource of the overlapping resources in the second resource, and the overlapping resource is a resource where the first resource and the second resource overlap; a sending unit 1003 is configured to send 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, the second resource, and a transmission manner of uplink data, where the transmission manner of the 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, the second resource, and a transmission manner of uplink data, where the third resource is a remaining resource excluding the overlapped resources in the second resource, and the transmission manner of the uplink data is a non-transformed precoding transmission manner.

Wherein the overlapping resources comprise at least one symbol in the time domain; wherein the related resource of the overlapped resource comprises the at least one symbol in time domain and comprises all frequency domain resources corresponding to the at least one symbol in frequency domain; the third resource is a remaining resource of the second resources excluding a resource related to 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 a remaining resource of the second resource excluding a related resource of the overlapping resource, where the related resource of the overlapping resource includes all frequency domain units corresponding to the first symbol; the discontinuous frequency domain units are at least one frequency domain unit apart from 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 a remaining resource of the second resource excluding a related resource of the overlapping resource, where the related resource of the overlapping resource includes other frequency domain units excluding the first continuous frequency domain unit on the first symbol; a discontinuous frequency domain unit exists in the fourth resource on the first symbol, the fourth resource is the second resource except the overlapping resource, and the discontinuous frequency domain unit is at least one frequency domain unit which is separated between the first frequency domain unit and the second frequency domain unit on the first symbol; the first continuous frequency domain unit is a continuous frequency domain unit occupying the largest resource on the first symbol in the fourth resource, or is a continuous frequency domain unit having 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 a remaining resource of the second resource excluding a resource related to an overlapping resource, where the resource related to the overlapping resource includes the overlapping resource on the second symbol; the fourth resource is the resource of the second resource excluding the overlapping resource, and the discontinuous frequency domain unit is at least one frequency domain unit apart from 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 in which the first symbol is located is a first time unit; the third resource is the remaining resource of the second resource except the related resource of the overlapped resource, and the related resource of the overlapped resource includes the first time unit where the first symbol is located in the time domain and includes all frequency domain units corresponding to the first time unit in the frequency domain; 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 symbol in the first time unit is greater than or equal to a first preset value, or the number of symbols of the continuous first symbol 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 in which the second symbol is located is a second time unit; the third resource is a remaining resource of the second resource excluding a 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 a frequency domain; wherein there is no overlap between the overlapping resources and resources carrying first reference signals in the second time unit; and/or the total number of the 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 the 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 a device with enhanced coverage or a device needing repeated transmission for multiple 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 a 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 uplink data sent by the terminal device in the third resource, where the second resource is a resource used for the terminal device to send the uplink data, the third resource is a remaining resource of the second resource excluding an overlapping resource or a resource related to the overlapping resource, and the overlapping resource is a resource where the first resource and the second resource overlap.

Optionally, in a specific implementation manner, the processing unit 1002 is further configured to generate second indication information, where the second indication information is used to configure the second resource for the terminal device, and the second indication information may be configured to the terminal device in advance, 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, the second resource, and a transmission manner of uplink data, where the transmission manner of the uplink data is a conversion precoding transmission manner.

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

In a specific implementation, an embodiment of the present application further provides a communication device, and refer to fig. 11, which is a schematic structural diagram of the communication device provided in the embodiment of the present application. The communication device may be the network device in the foregoing embodiments, and may also be a terminal device, or 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, where the memory 1103 may be used to store code or data. The transceiver 1101 may include components such as a receiver, a transmitter, and an antenna, and the communication device may include more or less components, or some components may be combined, or different component arrangements, 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 calling data stored in the memory 1103.

Alternatively, the processor 1102 may be composed of an Integrated Circuit (IC), for example, a single packaged IC, or a plurality of packaged ICs connected with the same function or different functions. For example, the processor may include only a Central Processing Unit (CPU), or may be a combination of a GPU, a Digital Signal Processor (DSP), and a control chip (e.g., a baseband chip) in the transceiver module. In various embodiments of the present application, the CPU may be a single arithmetic core or may include multiple arithmetic cores.

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

The transceiver 1101 is used to establish a communication channel through which the communication device connects 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 (WLAN) module, a bluetooth module, a baseband (base band) module, and other communication modules, and a Radio Frequency (RF) circuit corresponding to the communication device, and is configured to perform WLAN communication, bluetooth communication, infrared communication, and/or cellular communication system communication, such as Wideband Code Division Multiple Access (WCDMA) and/or High Speed Downlink Packet Access (HSDPA). The transceiver is used to control the communication of the 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 chips) and may be selectively combined without including all the transceiver modules and corresponding antenna groups. For example, the transceiver may include only a baseband chip, a radio frequency chip, and corresponding antenna to provide communication functions in a cellular communication system. The communication device may be connected to a cellular network (cellular network) or the internet (internet) via a communication connection established by the transceiver, such as a wireless local area network access or a WCDMA access.

The memory 1103 may include a volatile memory (volatile memory), such as a Random Access Memory (RAM); non-volatile memory (non-volatile memory) such as flash memory, Hard Disk Drive (HDD) or solid-state drive (SSD); the memory may also comprise a combination of memories of the kind described above. 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 apparatus by executing the program or code.

In the embodiment of the present application, the processor 1102 and the transceiver 1101 may be separate 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 a terminal device, such as a UE, in the foregoing embodiment, 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 used for the terminal device to transmit uplink data, the third resource is a remaining resource of the second resource excluding an overlapping resource or a related resource of the overlapping resources, and the overlapping resource is a resource where the first resource overlaps with the second resource.

When the communication device is used as a network device, such as a base station, in the foregoing embodiment, 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 transceiver 1101 transmits the first indication information, 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 the overlapping resources, and receives uplink data transmitted 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.

In addition, the present application also provides a computer storage medium, wherein the computer storage medium may store a program, and the program may include some or all of the steps in the embodiments of the data transmission method provided in the present application when executed. The storage medium can be a magnetic disk, an optical disk, a read-only memory ROM or a random access memory RAM.

In the above embodiments, all or part may be implemented 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 a switching instruction, which when loaded and executed by a computer, causes a process or function according to the embodiments described herein to be performed, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device.

The computer 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, from one network node, computer, server, or data center to another site, computer, or server by wire or wirelessly.

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

The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or 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.

Those skilled in the art will clearly understand that the techniques in the embodiments of the present application may be implemented by way of software plus a required general hardware platform. Based on such understanding, the technical solutions in the embodiments of the present application may be essentially or partially implemented 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., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments of the present invention.

The same and similar parts in the various embodiments in this specification may be referred to each other. In particular, as for the network device/node or the device, since it is basically similar to the method embodiment, the description is simple, and the relevant points can be referred to the description in the method embodiment.

The above-described embodiments of the present application do not limit the scope of the present application.

Claims

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

the method comprises the steps that terminal equipment receives first indication information from network equipment, wherein the first indication information is used for indicating a first resource reserved by the terminal equipment;

the terminal device determines 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 excluding an overlapping resource or a related resource of the overlapping resource in the second resource, and the overlapping resource is a resource where the first resource and the second resource overlap;

and the terminal equipment transmits uplink data on the third resource.

2. The method of claim 1, wherein the terminal device determines a third resource according to the first resource and the second resource, comprising:

and 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 pre-coding transmission mode.

3. The method of claim 1, wherein the terminal device determines a third resource according to the first resource and the second resource, comprising:

and 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 third resource is the residual resource except the overlapped resource in the second resource, and the transmission mode of the uplink data is a non-conversion pre-coding transmission mode.

4. The method of claim 1 or 2, wherein the overlapping resources comprise at least one symbol in time domain; wherein the related resource of the overlapped resource comprises the at least one symbol in time domain and comprises all frequency domain resources corresponding to the at least one symbol in frequency domain;

the third resource is a remaining resource of the second resources excluding a resource related to the overlapping resource.

5. The method according to claim 1 or 2, wherein the overlapping resources comprise at least one first symbol in time domain and at least one frequency domain element in frequency domain;

the third resource is a remaining resource of the second resource excluding a related resource of the overlapping resource, where the related resource of the overlapping resource includes all frequency domain units corresponding to the first symbol;

6. The method according to claim 1 or 2, wherein the overlapping resources comprise at least one first symbol in time domain and at least one frequency domain element in frequency domain;

the third resource is a remaining resource of the second resource excluding a related resource of the overlapping resource, where the related resource of the overlapping resource includes other frequency domain units excluding the first continuous frequency domain unit on the first symbol;

a discontinuous frequency domain unit exists in the fourth resource on the first symbol, the fourth resource is the second resource except the overlapping resource, and the discontinuous frequency domain unit is at least one frequency domain unit which is separated between the first frequency domain unit and the second frequency domain unit on the first symbol;

the first continuous frequency domain unit is a continuous frequency domain unit occupying the largest resource on the first symbol in the fourth resource, or is a continuous frequency domain unit having the highest or lowest frequency on the first symbol in the fourth resource.

7. The method of claim 1, 2, 5 or 6, wherein the overlapping resources comprise at least one second symbol in the time domain and at least one frequency domain element in the frequency domain;

the third resource is a remaining resource of the second resource excluding a resource related to an overlapping resource, where the resource related to the overlapping resource includes the overlapping resource on the second symbol;

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

the third resource is the remaining resource of the second resource except the related resource of the overlapped resource, and the related resource of the overlapped resource includes the first time unit where the first symbol is located in the time domain and includes all frequency domain units corresponding to the first time unit in the frequency domain;

9. The method according to claim 1 or 8, wherein the overlapping resource comprises at least one second symbol in time domain and at least one frequency domain unit in frequency domain, and the time unit in which the second symbol is located is a second time unit;

the third resource is a remaining resource of the second resource excluding a 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 a frequency domain;

10. The method according to any one of claims 1 to 9,

the terminal equipment is a coverage enhancement equipment or a repeated transmission equipment, and/or the repeated transmission times of the terminal equipment are more than the preset times.

11. 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 a first resource;

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

the network device determines 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 excluding an overlapping resource or a related resource of the overlapping resource from the second resource, and the overlapping resource is a resource where the first resource and the second resource overlap;

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

12. The method of claim 11, wherein the network device determines a third resource based on the first resource and the second resource, comprising:

and 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 pre-coding transmission mode.

13. The method of claim 11, wherein the network device determines a third resource based on the first resource and the second resource, comprising:

and 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 third resource is the residual resource except the overlapped resource in the second resource, and the transmission mode of the uplink data is a non-conversion pre-coding transmission mode.

14. The method of claim 11 or 12, wherein the overlapping resources comprise at least one symbol in time domain; wherein the related resource of the overlapped resource comprises the at least one symbol in time domain and comprises all frequency domain resources corresponding to the at least one symbol in frequency domain;

15. The method according to claim 11 or 12, wherein the overlapping resources comprise at least one first symbol in time domain and at least one frequency domain element in frequency domain;

16. The method according to claim 11 or 12, wherein the overlapping resources comprise at least one first symbol in time domain and at least one frequency domain element in frequency domain;

17. The method of claim 11, 12, 15 or 16, wherein the overlapping resources comprise at least one second symbol in the time domain and at least one frequency domain element in the frequency domain;

18. The method of claim 11, wherein the overlapping resource comprises at least one first symbol in time domain and at least one frequency domain unit in frequency domain, and wherein the time unit in which the first symbol is located is a first time unit;

19. The method according to claim 11 or 18, wherein the overlapping resource comprises at least one second symbol in time domain and at least one frequency domain unit in frequency domain, and the time unit in which the second symbol is located is a second time unit;

20. The method according to any one of claims 11 to 19,

21. A data transmission apparatus, characterized in that the apparatus comprises:

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 excluding an overlapping resource or a related resource of the overlapping resource in the second resource, and the overlapping resource is a resource where the first resource and the second resource overlap;

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

22. The apparatus of claim 21,

the processing unit is specifically configured to determine the third resource according to the first resource, the second resource, and a transmission mode of uplink data, where the transmission mode of the uplink data is a conversion precoding transmission mode.

23. The apparatus of claim 21,

the processing unit is specifically configured to determine the third resource according to the first resource, the second resource, and a transmission mode of uplink data, where the third resource is a remaining resource excluding the overlapping resource in the second resource, and the transmission mode of the uplink data is a non-inversion precoding transmission mode.

24. The apparatus of claim 21 or 22, wherein the overlapping resources comprise at least one symbol in time domain; wherein the related resource of the overlapped resource comprises the at least one symbol in time domain and comprises all frequency domain resources corresponding to the at least one symbol in frequency domain;

25. The apparatus of claim 21 or 22, wherein the overlapping resources comprise at least one first symbol in time domain and at least one frequency domain element in frequency domain;

26. The apparatus of claim 21 or 22, wherein the overlapping resources comprise at least one first symbol in time domain and at least one frequency domain element in frequency domain;

27. The apparatus of claim 21, 22, 25 or 26, wherein the overlapping resources comprise at least one second symbol in time domain and at least one frequency domain element in frequency domain;

the fourth resource is the resource of the second resource excluding the overlapping resource, and the discontinuous frequency domain unit is at least one frequency domain unit spaced between the first frequency domain unit and the second frequency domain unit on the second symbol.

28. The apparatus of claim 21, wherein the overlapping resource comprises at least one first symbol in time domain and at least one frequency domain unit in frequency domain, and wherein the time unit in which the first symbol is located is a first time unit;

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 symbol in the first time unit is greater than or equal to a first preset value, or the number of symbols of the continuous first symbol in the first time unit is greater than or equal to a second preset value.

29. The apparatus according to claim 21 or 28, wherein the overlapping resource comprises at least one second symbol in time domain and at least one frequency domain unit in frequency domain, and 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 resources carrying first reference signals in the second time unit; and/or the total number of the 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 the continuous second symbols in the second time unit is smaller than a second preset value.

30. The apparatus according to any of claims 12-20, wherein the apparatus is a device with enhanced coverage or a device that performs multiple transmissions, and/or wherein the number of transmissions performed is greater than a predetermined number.

31. A data transmission apparatus, characterized in that the apparatus comprises:

the terminal equipment comprises a processing unit, a processing unit and a processing unit, wherein the processing unit is used for generating first indication information which is used for indicating the terminal equipment to reserve a first resource;

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 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 excluding an overlapping resource or a resource related to the overlapping resource in the second resource, and the overlapping resource is a resource where the first resource and the second resource overlap;

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

32. The apparatus of claim 31,

33. The apparatus of claim 31,

34. The apparatus of claim 31 or 32,

the overlapping resources comprise at least one symbol in the time domain; wherein the related resource of the overlapped resource comprises the at least one symbol in time domain and comprises all frequency domain resources corresponding to the at least one symbol in frequency domain;

35. The apparatus of claim 31 or 32, wherein the overlapping resources comprise at least one first symbol in time domain and at least one frequency domain element in frequency domain;

36. The apparatus of claim 31 or 32, wherein the overlapping resources comprise at least one first symbol in time domain and at least one frequency domain element in frequency domain;

37. The apparatus of claim 31, 32, 35 or 36, wherein the overlapping resources comprise at least one second symbol in time domain and at least one frequency domain element in frequency domain;

38. The apparatus of claim 31, wherein the overlapping resources comprise at least one first symbol in time domain and at least one frequency domain unit in frequency domain, and wherein the time unit in which the first symbol is located is a first time unit;

39. The apparatus of claim 31 or 38, wherein the overlapping resource comprises at least one second symbol in time domain and at least one frequency domain unit in frequency domain, and the time unit in which the second symbol is located is a second time unit;

40. The apparatus according to any of claims 31-39, wherein the terminal device is a device with enhanced coverage or a device that performs multiple transmission repetitions, and/or wherein the number of transmission repetitions performed by the terminal device is greater than a preset number.

41. A communication device comprising a processor and a memory, the processor coupled with the memory,

the memory to store instructions;

the processor to execute the instructions in the memory to cause the communication device to perform the method of any of claims 1 to 20.

42. A computer readable storage medium having instructions stored thereon, wherein the instructions, when executed, implement the method of any of claims 1 to 20.