CN113271667A

CN113271667A - Uplink data transmission method and device

Info

Publication number: CN113271667A
Application number: CN202010093678.4A
Authority: CN
Inventors: 焦淑蓉; 花梦; 李军
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2021-08-17

Abstract

The embodiment of the application discloses a method and a device for transmitting uplink data. The terminal equipment receives the configuration parameters of the PUSCH resources from the network equipment, determines initial transmission resources according to the configuration parameters, and sends uplink data to the network equipment on the initial transmission resources. By the method, the terminal equipment can have enough transmission opportunities to transmit uplink data, so that the reliability of data transmission is improved.

Description

Uplink data transmission method and device

Technical Field

The present application relates to the field of communications, and in particular, to an uplink data transmission method and apparatus.

Background

A significant feature of the fifth generation (5th generation,5G) mobile communication system compared with the fourth generation (4th generation, 4G) mobile communication system is the increased support for ultra-reliable and low-latency communications (URLLC) services. The types of services of URLLC include many, and typical use cases include industrial control, unmanned driving, telesurgery, smart grid, and the like. For URLLC traffic, a typical requirement is that 32 bytes of data are sent within 1 millisecond (ms) with a reliability of 99.999%. It should be noted that the above performance index is only an example, different URLLC services may have different requirements on reliability, for example, in some extremely harsh industrial control application scenarios, the transmission success probability of URLLC service data needs to reach 99.9999999% within 0.25 ms.

Disclosure of Invention

In a first aspect, an embodiment of the present application provides an uplink data transmission method, where an execution subject of the method is a terminal device or a module in the terminal device. The description is made taking a terminal device as an execution subject. A terminal device receives configuration parameters of Physical Uplink Shared Channel (PUSCH) resources from a network device, where the configuration parameters include a repetition type, a redundancy version sequence, and a repetition number K, the PUSCH resources include K first transmission resources, and K is an integer greater than or equal to 2; the terminal device determines an initial transmission resource according to the configuration parameter, and when the configuration parameter meets a first condition, the initial transmission resource is a transmission resource corresponding to a redundancy version RV0, and the initial transmission resource is any one second transmission resource corresponding to a third transmission resource, where the third transmission resource includes M second transmission resources, M is a positive integer, the third transmission resource is any one of N first transmission resources except for an nth first transmission resource, the N first transmission resources are N first transmission resources among the K first transmission resources, and the first condition is that: the repetition type is type B, the RV sequence is a first sequence, and K is greater than or equal to 8, wherein the first sequence is a {0,3,0,3} sequence; and the terminal equipment sends uplink data to the network equipment on the initial transmission resource.

By implementing the method described in the first aspect, when the repetition type is type B, K is greater than or equal to 8, and the RV sequence is a first sequence, the initial transmission resource does not belong to an nth first transmission resource, that is, when the configuration parameter of the PUSCH resource satisfies a first condition, the terminal device may start to transmit uplink data from the first transmission resource to an N-1 st first transmission resource, and the terminal device may have a sufficient transmission opportunity to transmit the uplink data, thereby improving reliability of uplink data transmission.

In a possible implementation manner of the first aspect, the N first transmission resources may be K first transmission resources.

In a possible implementation manner of the first aspect, the N first transmission resources are first transmission resources other than a fourth transmission resource in the K first transmission resources, where the fourth transmission resource includes Y second transmission resources, each of the Y second transmission resources includes a downlink symbol, and Y is a positive integer.

In a possible implementation manner of the first aspect, when the configuration parameter satisfies the first condition, an N-1 first transmission resource of the N first transmission resources includes W second transmission resources, where W is a positive integer.

In a possible implementation manner of the first aspect, when the configuration parameter meets the first condition, the initial transmission resource is a transmission resource corresponding to RV3, and the initial transmission resource is any one of the W second transmission resources.

In a possible implementation manner of the first aspect, when W is an integer greater than 1, a W-th second transmission resource of the W second transmission resources is a fifth transmission resource; when the configuration parameter meets a first condition or a second condition, the initial transmission resource is a transmission resource corresponding to RV0, and the initial transmission resource is any one of the N first transmission resources except for the nth first transmission resource and the fifth transmission resource, and the second condition is: the repetition type is type B, the RV sequence is a second sequence, and K is greater than or equal to 8, wherein the second sequence is a {0,0,0,0} sequence.

In a possible implementation manner of the first aspect, when the configuration parameter meets the first condition or the second condition, the initial transmission resource is a transmission resource corresponding to RV0, and the initial transmission resource is any one of a first second transmission resource to a sixth transmission resource in the N first transmission resources, where the sixth transmission resource is a first second transmission resource in the W second transmission resources.

In a second aspect, the present application provides a method for uplink data transmission, where an execution subject of the method is a network device or a module in the network device. The description is made taking a network device as an execution subject. The method comprises the steps that network equipment sends configuration parameters of Physical Uplink Shared Channel (PUSCH) resources to terminal equipment, wherein the configuration parameters comprise a repetition type, a redundancy version sequence and a repetition frequency K, the PUSCH resources comprise K first transmission resources, and the K is an integer greater than or equal to 2; the network device determines an initial transmission resource according to the configuration parameter, and when the configuration parameter meets a first condition, the initial transmission resource is a transmission resource corresponding to RV0, and the initial transmission resource is any one second transmission resource corresponding to a third transmission resource, where the third transmission resource includes M second transmission resources, M is a positive integer, the third transmission resource is any one of N first transmission resources except for an nth first transmission resource, and the N first transmission resources are N first transmission resources of the K first transmission resources, where the first condition is: the repetition type is type B, the RV sequence is a first sequence, and K is more than or equal to 8; and the network equipment receives the uplink data sent by the terminal equipment on the initial transmission resource.

The method described in the second aspect is a network-side method corresponding to the method described in the first aspect, and therefore, the advantageous effects achieved by the first aspect can also be achieved.

In a possible implementation manner of the second aspect, the N first transmission resources are K first transmission resources.

In a possible implementation manner of the second aspect, the N first transmission resources are first transmission resources except for a fourth transmission resource in the K first transmission resources, where the fourth transmission resource includes Y second transmission resources, each of the Y second transmission resources includes a downlink symbol, and Y is a positive integer.

In a possible implementation manner of the second aspect, when the configuration parameter satisfies the first condition, an N-1 st first transmission resource of the N first transmission resources includes W second transmission resources, W being a positive integer.

In a possible implementation manner of the second aspect, when the configuration parameter satisfies the first condition, the initial transmission resource is a transmission resource corresponding to RV3, and the initial transmission resource is any one of the W second transmission resources.

In a possible implementation manner of the second aspect, when W is an integer greater than 1, a W-th second transmission resource of the W second transmission resources is a fifth transmission resource; when the configuration parameter satisfies a first condition or a second condition, the initial transmission resource is a transmission resource corresponding to RV0, and the initial transmission resource is any one of N first transmission resources except for an nth first transmission resource and a fifth transmission resource, where the second condition is: the repetition type is type B, the RV sequence is a second sequence, and K is greater than or equal to 8.

In a possible implementation manner of the second aspect, when the configuration parameter meets the first condition or the second condition, the initial transmission resource is a transmission resource corresponding to RV0, and the initial transmission resource is any one of a first second transmission resource to a sixth transmission resource in the N first transmission resources, where the sixth transmission resource is a first second transmission resource in the W second transmission resources.

In a third aspect, a communication device is provided, which includes functional modules for implementing the methods in the first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, there is provided a communication device comprising functional modules for implementing the method of the second aspect or any possible implementation manner of the second aspect.

In a fifth aspect, there is provided a communication device comprising a processor and an interface circuit, wherein the interface circuit is configured to receive signals from other communication devices except the communication device and transmit the signals to the processor or transmit the signals from the processor to other communication devices except the communication device, and the processor is configured to implement the method of the first aspect or any possible implementation manner of the first aspect through logic circuits or executing code instructions.

In a sixth aspect, there is provided a communication device comprising a processor and an interface circuit, the interface circuit being configured to receive signals from a communication device other than the communication device and transmit the signals to the processor or transmit the signals from the processor to the communication device other than the communication device, the processor being configured to implement the method of the second aspect or any possible implementation manner of the second aspect by logic circuits or executing code instructions.

In a seventh aspect, a computer-readable storage medium is provided, in which a computer program or instructions are stored, which, when executed, implement the method of the first aspect or any possible implementation manner of the first aspect.

In an eighth aspect, there is provided a computer readable storage medium having stored therein a computer program or instructions which, when executed, implement the method of the second aspect or any possible implementation of the second aspect.

A ninth aspect provides a computer program product comprising instructions that, when executed, implement the first aspect or the method of any possible implementation of the first aspect.

A tenth aspect provides a computer program product comprising instructions that, when executed, implement the second aspect or the method of any possible implementation of the second aspect.

In an eleventh aspect, there is provided a computer program comprising code or instructions which, when executed, implement the first aspect or the method in any possible implementation manner of the first aspect.

In a twelfth aspect, there is provided a computer program comprising code or instructions which, when executed, implement the second aspect or the method in any possible implementation of the second aspect.

In a thirteenth aspect, a chip system is provided, where the chip system includes a processor and may further include a memory, and is configured to implement at least one of the methods described in the first aspect to the second aspect. The chip system may be formed by a chip, and may also include a chip and other discrete devices.

In a fourteenth aspect, a communication system is provided, which includes the apparatus (e.g. terminal device) of the third aspect or the fifth aspect, and the apparatus (e.g. network device) of the fourth aspect or the sixth aspect.

Drawings

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

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

fig. 3 is a schematic diagram of a repetition type of PUSCH resources in an embodiment of the present application;

fig. 4 is another schematic diagram of a repetition type of PUSCH resources in the embodiment of the present application;

fig. 5-11 are schematic diagrams of transmission resources in an embodiment of the present application;

fig. 12 and fig. 13 are schematic structural diagrams of a possible communication device provided in an embodiment of the present application.

Detailed Description

The technical scheme provided by the embodiment of the application can be applied to various communication systems, such as: a Long Term Evolution (LTE) system, a fifth generation (5G) mobile communication system, a wireless fidelity (WiFi) system, a future communication system, or a system in which multiple communication systems are integrated, which is not limited in the embodiments of the present application. Among them, 5G may also be referred to as New Radio (NR).

The technical scheme provided by the embodiment of the application can be applied to various communication scenes, for example, one or more of the following communication scenes: enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), Machine Type Communication (MTC), large-scale Machine Type Communication (MTC), device-to-device (D2D), vehicle-to-evolution (V2X), vehicle-to-vehicle (V2V), and internet of things (IoT), among others.

The technical scheme provided by the embodiment of the application can be applied to communication among communication devices. The communication between the communication devices may include: communication between a network device and a terminal device, communication between a network device and a network device, and/or communication between a terminal device and a terminal device. In the embodiments of the present application, the term "communication" may also be described as "transmission", "information transmission", or "signal transmission", and the like. The transmission may include sending and/or receiving. In the embodiment of the present application, a technical solution is described by taking communication between a network device and a terminal device as an example, and those skilled in the art may also use the technical solution to perform communication between other scheduling entities and subordinate entities, for example, communication between a macro base station and a micro base station, for example, communication between a first terminal device and a second terminal device. The scheduling entity may allocate an air interface resource to the subordinate entity. The air interface resources include one or more of the following resources: time domain resources, frequency domain resources, code resources, and spatial resources. In the embodiments of the present application, the plurality of types may be two, three, four, or more, and the embodiments of the present application are not limited.

In this embodiment of the present application, the communication between the network device and the terminal device includes: the network device sends downlink signals/information to the terminal device, and/or the terminal device sends uplink signals/information to the network device.

In the embodiments of the present application, "/" may indicate a relationship in which the objects associated before and after are "or", for example, a/B may indicate a or B; "and/or" may be used to describe that there are three relationships for the associated object, e.g., A and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. In the embodiments of the present application, the terms "first", "second", and the like may be used to distinguish technical features having the same or similar functions. The terms "first", "second", and the like do not necessarily limit the number and execution order, and the terms "first", "second", and the like do not necessarily differ. In the embodiments of the present application, the words "exemplary" or "such as" are used to indicate examples, illustrations or illustrations, and embodiments or designs described as "exemplary" or "such as" are not to be construed as preferred or advantageous over other embodiments or designs. The use of the terms "exemplary" or "such as" are intended to present relevant concepts in a concrete fashion for ease of understanding.

Fig. 1 is an architecture diagram of a communication system to which embodiments of the present application may be applied. As shown in fig. 1, the communication system includes a network device 110 and at least one terminal device (e.g., terminal device 120 and terminal device 130 in fig. 1). Illustratively, the network device 110 may include a radio frequency unit and a baseband unit. For uplink data transmission, the baseband unit may include at least one of a demodulation module, a de-rate matching module, and a channel decoding module. Illustratively, terminal devices (such as terminal device 120 and terminal device 130 in fig. 1) may include a baseband unit and a radio frequency unit. For uplink data transmission, the baseband unit may include at least one of a channel coding module, a rate matching module, and a modulation module. The channel coding module may be implemented by an encoder, and the encoder is configured to encode the information bit sequence and generate a coded bit sequence, where the coded bit sequence includes information bits and redundant bits. The rate matching module is used for repeating or punching the bits in the coded bit sequence to ensure that the length of the bit sequence after rate matching is matched with the transmission resource. The modulation module is configured to modulate and map the bit sequence obtained after rate matching into complex-valued modulation symbols (complex-valued modulation symbols), so as to improve transmission efficiency. The functions of the demodulation module, the de-rate matching module and the channel decoding module are respectively the inverse processes of the functions of the modulation module, the rate matching module and the channel coding module. Fig. 1 is a schematic diagram, and the embodiment of the present application does not limit the number of network devices and terminal devices included in the communication system.

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

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

The terminal device related to the embodiments of the present application may also be referred to as a terminal, and may be a device having a wireless transceiving function). The terminal device may be a User Equipment (UE) including a handheld device, a vehicle-mounted device, a wearable device, or a computing device having wireless communication capabilities. Illustratively, the UE may be a mobile phone, a tablet computer, or a computer with wireless transceiving function. The terminal device may also be a virtual reality terminal device, an augmented reality terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in a smart city, and/or a wireless terminal in a smart home, etc.

In the embodiment of the present application, the apparatus for implementing the function of the terminal device may be the terminal device; it may also be a device, such as a chip system, capable of supporting the terminal device to realize the function, and the device may be installed in the terminal device or used in cooperation with the terminal device. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices. In the technical solution provided in the embodiment of the present application, a device for implementing a function of a terminal device is taken as an example of a terminal device, and the technical solution provided in the embodiment of the present application is described.

The network device related to the embodiment of the present application includes a Base Station (BS), which may be a device deployed in a radio access network and capable of performing wireless communication with a terminal device. The base station may have various forms, such as a macro base station, a micro base station, a relay station, an access point, and the like. The base station related to the embodiment of the present application may be a base station in a 5G system or a base station in an LTE system, where the base station in the 5G system may also be referred to as a Transmission Reception Point (TRP) or a next generation Node B (generation Node B, gNB, or gnnodeb). In the embodiment of the present application, the apparatus for implementing the function of the network device may be a network device; it may also be a device, such as a chip system, capable of supporting the network device to implement the function, and the device may be installed in the network device or used in cooperation with the network device. In the technical solution provided in the embodiment of the present application, a device for implementing a function of a network device is taken as an example of a network device, and the technical solution provided in the embodiment of the present application is described.

In a communication system, a terminal device may access and communicate with a network device. Illustratively, a network device may manage one or more (e.g., 3 or 6, etc.) cells, and a terminal device may access the network device in at least one of the one or more cells and communicate with the network device in the cell in which the terminal device is located. In the embodiments of the present application, at least one of the two or more may be 1, 2,3, or more, and the embodiments of the present application are not limited.

In the embodiment of the present application, the time domain symbol may be an Orthogonal Frequency Division Multiplexing (OFDM) symbol or a single carrier-frequency division multiplexing (SC-FDM) symbol. The symbols in the embodiments of the present application all refer to time domain symbols, if not otherwise specified.

One implementation manner of performing uplink data transmission between the terminal device and the network device may be grant free transmission (grant free), in which the terminal device sends uplink data to the network device using the grant free resource. In the grant-free transmission, the uplink transmission of the terminal device does not need to be completed by scheduling of the network device. For example, when uplink data arrives, the terminal device does not need to send a Scheduling Request (SR) to the network device and wait for a dynamic grant (dynamic grant) of the network device, but may directly send the uplink data to the network device using a transmission resource pre-allocated by the network device and a specified transmission parameter. In the embodiment of the present application, "unlicensed transmission" is also referred to as "unlicensed scheduling" or "Configured Grant (CG)".

When the terminal device uses the unlicensed resource to perform uplink data transmission, how to improve the reliability of data transmission is an urgent problem to be solved.

Fig. 2 is a schematic flowchart of an uplink data transmission method provided in an embodiment of the present application, where the embodiment relates to a specific process of performing uplink data transmission between a network device and a terminal device. As shown in fig. 2, the method may include: s201, S202 and S203.

S201, the network equipment sends configuration parameters of Physical Uplink Shared Channel (PUSCH) resources to the terminal equipment. Correspondingly, the terminal equipment receives the configuration parameters of the PUSCH resources from the network equipment. The configuration parameters comprise a repetition type, a redundancy version sequence and a repetition number K, the PUSCH resource comprises K first transmission resources, and K is an integer greater than or equal to 2.

Specifically, the PUSCH resource is an unlicensed resource, and the unlicensed resource may be classified into the following two types:

a first type of unlicensed resource: the network device configures, for the terminal device, transmission parameters of the unlicensed resources, such as one or more of the following parameters for configuring an uplink data channel, through parameters (e.g., ConfiguredGrantConfig) in a Radio Resource Control (RRC) message: a period, an open loop power control related parameter, a waveform, a redundancy version sequence, a repetition number, a frequency hopping pattern, a Resource allocation type, a hybrid automatic repeat request (HARQ) process number, a demodulation reference signal (DMRS) related parameter, a Modulation and Coding Scheme (MCS) table, a Resource Block Group (RBG) size, a time domain Resource position, a frequency domain Resource position, and an MCS.

A second type of unlicensed resource: the network device configures some or all transmission parameters, for example, one or more of the following parameters for configuring the uplink data channel, to the terminal device through the RRC message: the method comprises the steps of determining the period of time domain resources, related parameters of open loop power control, waveforms, redundancy versions, sequences of the redundancy versions, repetition times, a frequency hopping mode, resource allocation types, MCS tables, related parameters of DMRS and HARQ process numbers; the network device sends physical layer signaling, such as Downlink Control Information (DCI), to the terminal device to activate the second type of unlicensed resource. Optionally, the DCI may also be used to configure partial transmission parameters, for example, configure one or more of the following parameters of an uplink data channel: time domain resource location, frequency domain resource location, DMRS related parameters, and MCS. The DCI may be carried through a Physical Downlink Control Channel (PDCCH).

When the terminal device uses the two types of authorization-free resources for uplink transmission, the terminal device can directly use the authorization-free resources pre-configured by the network device to send uplink data to the network device, without sending an SR to the network device and waiting for dynamic authorization of the network device. It should be noted that the second type of unlicensed resource needs to be activated by physical layer signaling before being used by the terminal device.

The above-mentioned repetition types of the PUSCH resources may be classified into the following types a and B:

type a is repeated in units of slots (slots), and referring to fig. 3, the number of times K of repetition of the transmission resource is equal to 4, i.e., the transmission resource is repeated over 4 consecutive slots (slot 302 to slot 305), and the position of the transmission resource is the same in each of the 4 slots. In the embodiment of the present application, a transmission resource (retransmission) is configured to a terminal device by a network device, and the terminal device may send uplink data to the network device on the transmission resource.

Type B is repeated in units of length L, and referring to fig. 4, the start symbol (S) of the transmission resource in the slot is 4, the length (L) is 6, and the number of repetitions (K) is 4. The mapping pattern is shown in fig. 4, the length of the transmission resource is 6 symbols, the number of consecutive repetitions of the transmission resource from slot 405 to slot 408 is 4, the time domain interval between each repetition is 0, and the starting position of the first repetition of the transmission resource is symbol 4 in slot 405.

In type B, one slot contains X symbols, X being a positive integer. S is an integer from 0 to X-1, and L is an integer from 1 to 14. Since the combination of S, L and K is not particularly limited, a situation where a certain transmission resource crosses a slot boundary may occur in practice, that is, one transmission resource may be split into two transmission resources with the slot boundary as a boundary. In this embodiment of the present application, a transmission resource before splitting is a first transmission resource, where the first transmission resource may also be referred to as: nominal transmission (nominal retransmission), the split transmission resource is a second transmission resource, where the second transmission resource may also be referred to as: actual transmission resource (actual retransmission).

The number of times of repetition K indicated to the terminal device by the network device represents the number of nominal repetition, and the K nominal repetition can be split into J actual repetition, wherein J is an integer not less than K. Illustratively, as shown in FIG. 4, the nominal repetition406 is split into two actual repetitions, actual repetition4061 and actual repetition4062, by the slot boundary between slot 402 and slot 403. It is understood that an actual repetition belongs to a nominal repetition, which may be considered equal to one if the nominal repetition is not split, for example nominal repetition405 may be considered as actual repetition405, and nominal repetition407 and nominal repetition408 may be considered as two actual repetitions. In the example shown in FIG. 4, the 4 nominal reptilizations are split into 5 actual reptilizations.

In addition to the slot boundaries, the parameters (invalid symbol pattern) configured by the network device for the terminal device may also cause the fragmentation of the nominal retransmission. For example, the network device configures some symbols in the nominal repetition as invalid symbols, as shown in fig. 5, 503 denotes an invalid symbol in the nominal repetition500, at which time the nominal repetition500 may be divided into two actual repetition501 and 502.

The above-described redundancy version sequence of PUSCH may include any one of {0,0,0,0}, {0,3,0,3}, and {0,2,3,1 }. Specifically, the network device configures a parameter repK-RV for the terminal device, where the parameter is used to indicate an RV sequence adopted in the K transmission resources. There are 4 cases of repK-RV: the parameter repK-RV is not configured, namely the RV sequence is set to be 0; the parameter repK-RV is configured to be {0,2,3,1}, namely the RV sequence is {0,2,3,1 }; the parameter repK-RV is configured as {0,3,0,3}, i.e. the RV sequence is {0,3,0,3 }; the parameter repK-RV is configured as {0,0,0,0}, i.e., the RV sequence is {0,0,0,0 }.

The PUSCH needs a plurality of configuration parameters for determining the transmission resource location of the PUSCH and the transmission of uplink data, and it is understood that the parameters provided in this embodiment are only examples of some parameters, and specific parameters are not limited herein, for example, the configuration parameters may further include one or more of the following parameters: codebook subset, maximum rank, scrambling code identification for data scrambling, etc.

S202, the terminal equipment determines initial transmission resources according to the configuration parameters.

S203, the terminal equipment sends uplink data to the network equipment in the initial transmission resource.

The network device configures, for the terminal device, PUSCH resources including K first transmission resources in one period, where the period may be a frame, a subframe, a slot, or a millisecond. The terminal device may send uplink data to the network device on the first transmission resource, where the uplink data has multiple transmission opportunities, and if the K first transmission resources include I second transmission resources, the uplink data has I transmission opportunities, and each second transmission resource corresponds to one transmission opportunity, it may be understood that, when none of the K first transmission resources is split, K is equal to I, the terminal device starts sending the uplink data to the network device on one of the I transmission opportunities until the I transmission opportunity, and in this embodiment, the initial transmission resource represents a resource that carries initial transmission. The initial transmission may be understood as: and sending the uplink data to the network equipment in the first transmission opportunity, namely, the terminal equipment transmits the uplink data for the first time.

The terminal device may determine the initial transmission resource according to one or more of the following determination manners.

In a first determination manner, when the configuration parameter meets a first condition, the initial transmission resource is a transmission resource corresponding to redundancy version RV0, and the initial transmission resource is any one second transmission resource corresponding to a third transmission resource, where the third transmission resource includes M second transmission resources, M is a positive integer, the third transmission resource is any one first transmission resource of N first transmission resources except for the nth first transmission resource, and the N first transmission resources are N first transmission resources of K first transmission resources. In an embodiment of the present application, the first condition includes: the repetition type is type B, the redundancy version sequence is a first sequence, and K is greater than or equal to 8, where the first sequence is {0,3,0,3}, it is understood that the first sequence may have other expressions such as any one of 0303 or (0,3,0,3), and is not limited herein.

In this embodiment of the application, the N first transmission resources may be any one of the following two cases:

case 1: the N first transmission resources are K first transmission resources;

case 2: the N first transmission resources are first transmission resources other than a fourth transmission resource among the K first transmission resources, the fourth transmission resource includes Y second transmission resources, each of the Y second transmission resources includes a downlink symbol, where Y is a positive integer.

Exemplarily, when the N first transmission resources are case 1, and when the configuration parameter satisfies the first condition, the initial transmission resource is a transmission resource corresponding to the redundancy version RV0, and the initial transmission resource is any one second transmission resource corresponding to a third transmission resource, where the third transmission resource is any one first transmission resource except for a kth first transmission resource among the K first transmission resources. As shown in fig. 6, the kth first transmission resource is split into a second transmission resource 601 and a second transmission resource 602, where the second transmission resource 601 is a transmission resource corresponding to RV 0. Since the second transmission resource 601 is split by the kth first transmission resource, the second transmission resource 601 may not be used as the initial transmission resource.

If an initial transmission resource exists in a certain period, that is, the terminal device sends uplink data to the network device in the period from the initial transmission resource to the last second transmission resource, where the initial transmission resource belongs to the first transmission resource to the K-1 th first transmission resource, that is, the resource for sending the uplink data includes resources included in the initial transmission resource to the last second transmission resource, and the resource for sending the uplink data at least includes: the resource contained in one second transmission resource and the resource contained in the kth first transmission resource, that is, the resource used for sending the uplink data is larger than the resource contained in one first transmission resource, and the terminal device can have enough transmission resources to repeatedly transmit the uplink data, so that the reliability of data transmission is improved.

In a Time Division Duplex (TDD) system, uplink and downlink symbols appear in a time-division manner, and the positions of the uplink and downlink symbols are indicated by network equipment through high-level parameter configuration or through downlink control signaling. The time-frequency resource position of the PUSCH is also configured by the network device, and the transmission resource for the terminal device to send the uplink information may overlap with the downlink symbol position, and if there is a downlink symbol within a certain transmission resource range, the transmission resource at this time is cancelled. If the last transmission resource or the last transmission resources cancel sending, the transmission resources actually having data transmission are reduced, and the transmission reliability is affected.

Exemplarily, when the N first transmission resources are scenario 2, and the configuration parameter satisfies a first condition, the initial transmission resource is a transmission resource corresponding to redundancy version RV0, and the initial transmission resource is any one second transmission resource corresponding to a third transmission resource, the third transmission resource is any one of the N first transmission resources except for the nth first transmission resource, the N first transmission resources are N first transmission resources of the K first transmission resources, and at least one of the second transmission resources corresponding to any one of the N first transmission resources does not include a downlink symbol.

As shown in fig. 7, the second transmission resources corresponding to the Z +1 th to K-th first transmission resources all include downlink symbols, and the Z-th first transmission resource is split into a second transmission resource 701 and a second transmission resource 702, where the second transmission resource 701 is a transmission resource corresponding to RV0, and Z is a positive integer smaller than K. If at least one of the

second transmission resources

701 and 702 does not include a downlink symbol, N ═ Z, at this time, the second transmission resource 701 cannot be used as the first transmission resource.

Determining a second mode, when the configuration parameter meets the first condition, the initial transmission resource is a transmission resource corresponding to the redundancy version RV0, and the initial transmission resource is a second transmission resource except for a last second transmission resource corresponding to an nth first transmission resource in the N first transmission resources, where the N first transmission resources are N first transmission resources in the K first transmission resources.

Exemplarily, when the above-mentioned N first transmission resources are case 1, that is, N is K, when the configuration parameter satisfies the first condition, the initial transmission resource is a transmission resource corresponding to the redundancy version RV0, and the initial transmission resource is a second transmission resource except for a last second transmission resource corresponding to a kth first transmission resource among the K first transmission resources.

As shown in fig. 8, the kth first transmission resource is split into a second transmission resource 801 and a second transmission resource 802, where the second transmission resource 801 is a transmission resource corresponding to RV0, and the initial transmission resource may belong to the second transmission resource 801.

In this embodiment, the resources for transmitting the uplink data at least include two resources of the second transmission resource, and referring to fig. 8, if the initial transmission resource is the second transmission resource 801, the resources for transmitting the uplink data include resources of the second transmission resource 801 and the second transmission resource 802.

Illustratively, when the above-mentioned N first transmission resources are case 2, when the configuration parameter satisfies the first condition, the initial transmission resource is a transmission resource corresponding to the redundancy version RV0, and the initial transmission resource is a second transmission resource except for a last second transmission resource corresponding to an nth first transmission resource among the N first transmission resources.

Determining a third mode, when the configuration parameter meets the first condition, the initial transmission resource is a transmission resource corresponding to RV3, and the initial transmission resource is any one second transmission resource corresponding to a third transmission resource, where the third transmission resource includes M second transmission resources, M is a positive integer, the third transmission resource is an N-1 th first transmission resource in the N first transmission resources, and the initial transmission resource belongs to an N-1 th first transmission resource in the N first transmission resources.

For example, when the above-mentioned N first transmission resources are case 1, referring to fig. 9, at this time, M is 1, and the N-1 st first transmission resource 901 may be regarded as the second transmission resource 901, it is understood that in actual operation, M may be another positive integer, and is not limited herein. When the configuration parameter satisfies the first condition, the initial transmission resource is a transmission resource corresponding to RV3, and the initial transmission resource belongs to the K-1 th first transmission resource, such as the second transmission resource 901 shown in fig. 9.

Exemplarily, when the above N first transmission resources are case 2, when the configuration parameter satisfies the first condition, the initial transmission resource is a transmission resource corresponding to RV3, and the initial transmission resource belongs to the N-1 st first transmission resource.

Determining a mode four, when the configuration parameter meets the first condition or the second condition, the initial transmission resource is a transmission resource corresponding to RV0, and the initial transmission resource is any one of N first transmission resources except an nth first transmission resource and a fifth transmission resource, where N-1 th first transmission resource of the N first transmission resources includes W second transmission resources, W is an integer greater than 1, and a W-th second transmission resource of the W second transmission resources is a fifth transmission resource.

The second condition in the embodiment of the present application includes: the repetition type is type B, the RV sequence is a second sequence, and K is greater than or equal to 8, where the second sequence is {0,0,0,0}, and it is understood that the second sequence may have other expressions such as any one of 0000 or (0,0,0,0), and is not limited herein.

As shown in fig. 10, taking the second condition as an example for description, the N-1 st first transmission resource includes 3 second transmission resources 1001 to 1003, that is, W is 3, and the fifth transmission resource is the second transmission resource 1003. The initial transmission resource is a transmission resource corresponding to RV0, and the initial transmission resource is any one of the N first transmission resources except for the nth first transmission resource and the fifth transmission resource, as shown in fig. 10, the initial transmission resource may be the second transmission resource 1001 or the second transmission resource 1002.

Exemplarily, when the above N first transmission resources are case 1, that is, K equals N.

Exemplarily, when the above N first transmission resources are case 2, that is, in the time division duplex system, the N first transmission resources are resources composed of uplink symbols in the K first transmission resources.

Determining a mode five, when the configuration parameter meets the first condition or the second condition, the initial transmission resource is a transmission resource corresponding to RV0, the initial transmission resource is any one of a first second transmission resource to a sixth transmission resource in the N first transmission resources, and the sixth transmission resource is a first second transmission resource in the W second transmission resources.

As shown in fig. 11, taking the first condition as an example for description, the N-1 st first transmission resource includes 3 second transmission resources 1101 to 1103, that is, W is 3, and the sixth transmission resource is the second transmission resource 1101. The initial transmission resource is a transmission resource corresponding to RV0, and the initial transmission resource is any one of the first to sixth transmission resources in the N first transmission resources, as shown in fig. 10, the initial transmission resource may be the second transmission resource 1001.

It is to be understood that the manner in which the terminal device determines the initial transmission resource according to the configuration parameter is equally applicable to the network device.

It is to be understood that, in order to implement the functions in the above embodiments, the network device and the terminal device include hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and method steps described in connection with the embodiments disclosed herein may be implemented as hardware, software, or combinations of hardware and software. Whether a function is implemented as hardware, software, or computer software drives hardware depends upon the particular application and design constraints imposed on the implementation.

Fig. 12 and 13 are schematic structural diagrams of a possible communication device provided in an embodiment of the present application. These communication devices can be used to implement the functions of the terminal device or the network device in the above method embodiments, so that the beneficial effects of the above method embodiments can also be achieved. In the embodiment of the present application, the communication apparatus may be the terminal device 120 or the terminal device 130 shown in fig. 1, may also be the network device 110 shown in fig. 1, and may also be a module (e.g., a chip) applied to the terminal device or the network device.

As shown in fig. 12, the communication apparatus 1200 includes a processing module 1210 and a communication module 1220. The communication apparatus 1200 is used to implement the functions of the terminal device or the network device in the method embodiment shown in fig. 2.

When the communication apparatus 1200 is used to implement the functions of the terminal device in the method embodiment shown in fig. 2: the communication module 1220 is configured to receive configuration parameters of a PUSCH resource of a physical uplink shared channel from a network device, where the configuration parameters include a repetition type, a redundancy version sequence, and a repetition number K, the PUSCH resource includes K first transmission resources, and K is an integer greater than or equal to 2; the processing module 1210 is configured to determine an initial transmission resource according to the configuration parameter, where when the configuration parameter meets a first condition, the initial transmission resource is a transmission resource corresponding to RV0, the initial transmission resource is any one second transmission resource corresponding to a third transmission resource, the third transmission resource includes M second transmission resources, M is a positive integer, the third transmission resource is any one of N first transmission resources except for an nth first transmission resource, the N first transmission resources are N first transmission resources of the K first transmission resources, and the first condition is that: the above repeat type is type B, the above RV sequence is a first sequence, K is greater than or equal to 8; the communication module 1220 is further configured to transmit uplink data to the network device on the initial transmission resource.

When the communication apparatus 1200 is used to implement the functions of the network device in the method embodiment shown in fig. 2: the communication module 1220 is configured to send a configuration parameter of a PUSCH resource of a physical uplink shared channel to a terminal device, where the configuration parameter includes a repetition type, a redundancy version sequence, and a repetition number K, the PUSCH resource includes K first transmission resources, and K is an integer greater than or equal to 2; the processing module 1210 is configured to determine an initial transmission resource according to the configuration parameter, where when the configuration parameter meets a first condition, the initial transmission resource is a transmission resource corresponding to RV0, the initial transmission resource is any one second transmission resource corresponding to a third transmission resource, the third transmission resource includes M second transmission resources, M is a positive integer, the third transmission resource is any one of N first transmission resources except for an nth first transmission resource, the N first transmission resources are N first transmission resources of the K first transmission resources, and the first condition is that: the above repeat type is type B, the above RV sequence is a first sequence, K is greater than or equal to 8; the communication module 1220 is further configured to receive uplink data from the terminal device on the initial transmission resource.

More detailed descriptions about the processing module 1210 and the communication module 1220 can be directly obtained by referring to the related descriptions in the embodiment of the method shown in fig. 2, which are not repeated herein.

As shown in fig. 13, the communications device 1300 includes a processor 1310 and an interface circuit 1320. The processor 1310 and the interface circuit 1320 are coupled to each other. It is to be appreciated that the interface circuit 1320 may be a transceiver or an input-output interface. Optionally, the communications apparatus 1300 may further include a memory 1330 for storing instructions for execution by the processor 1310 or for storing input data required by the processor 1310 to execute the instructions or for storing data generated by the processor 1310 after executing the instructions.

When the communication device 1300 is configured to implement the method shown in fig. 2, the processor 1310 is configured to perform the functions of the processing unit 1310, and the interface circuit 1320 is configured to perform the functions of the communication module 1220.

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

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

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

The method steps in the embodiments of the present application may be implemented by hardware, or may be implemented by software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash Memory, Read-Only Memory (ROM), Programmable ROM (PROM), Erasable PROM (EPROM), Electrically EPROM (EEPROM), registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in a network device or a terminal device. Of course, the processor and the storage medium may reside as discrete components in a network device or a terminal device.

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

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

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

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

Claims

1. An uplink data transmission method, comprising:

receiving configuration parameters of Physical Uplink Shared Channel (PUSCH) resources from network equipment, wherein the configuration parameters comprise a repetition type, a redundancy version sequence and a repetition frequency K, the PUSCH resources comprise K first transmission resources, and the K is an integer greater than or equal to 2;

determining an initial transmission resource according to the configuration parameter, wherein when the configuration parameter meets a first condition, the initial transmission resource is a transmission resource corresponding to redundancy version RV0, the initial transmission resource is any one second transmission resource corresponding to a third transmission resource, the third transmission resource includes M second transmission resources, M is a positive integer, the third transmission resource is any one of N first transmission resources except for an nth first transmission resource, the N first transmission resources are N first transmission resources among the K first transmission resources, and the first condition is that: the repetition type is type B, the RV sequence is a first sequence, and K is greater than or equal to 8;

and sending uplink data to the network equipment on the initial transmission resource.

2. The method of claim 1,

the N first transmission resources are the K first transmission resources.

3. The method of claim 1,

the N first transmission resources are first transmission resources except for a fourth transmission resource in the K first transmission resources, the fourth transmission resource includes Y second transmission resources, each of the Y second transmission resources includes a downlink symbol, and Y is a positive integer.

4. The method according to any of claims 1 to 3, wherein the N-1 st of the N first transmission resources comprises W second transmission resources, W being a positive integer.

5. The method of claim 4, wherein when the configuration parameter satisfies the first condition, the initial transmission resource is a transmission resource corresponding to RV3, and the initial transmission resource is any one of the W second transmission resources.

6. The method according to claim 4 or 5,

when W is an integer greater than 1, a W-th second transmission resource of the W second transmission resources is a fifth transmission resource;

when the configuration parameter meets a first condition or a second condition, the initial transmission resource is a transmission resource corresponding to RV0, and the initial transmission resource is any one of the N first transmission resources except for an nth first transmission resource and a fifth transmission resource, where the second condition is: the repetition type is type B, the RV sequence is a second sequence, and K is greater than or equal to 8.

7. The method of claim 6,

when the configuration parameter meets a first condition or a second condition, the initial transmission resource is a transmission resource corresponding to RV0, and the initial transmission resource is any one of a first second transmission resource to a sixth transmission resource in the N first transmission resources, and the sixth transmission resource is a first second transmission resource in the W second transmission resources.

8. An uplink data transmission method, comprising:

sending configuration parameters of Physical Uplink Shared Channel (PUSCH) resources to terminal equipment, wherein the configuration parameters comprise a repetition type, a redundancy version sequence and a repetition frequency K, the PUSCH resources comprise K first transmission resources, and the K is an integer greater than or equal to 2;

determining an initial transmission resource according to the configuration parameter, where when the configuration parameter meets a first condition, the initial transmission resource is a transmission resource corresponding to RV0, the initial transmission resource is any one second transmission resource corresponding to a third transmission resource, the third transmission resource includes M second transmission resources, M is a positive integer, the third transmission resource is any one of N first transmission resources except for an nth first transmission resource, the N first transmission resources are N first transmission resources of the K first transmission resources, and the first condition is that: the repetition type is type B, the RV sequence is a first sequence, and K is greater than or equal to 8;

and receiving uplink data sent by the terminal equipment on the initial transmission resource.

9. The method of claim 8,

the N first transmission resources are the K first transmission resources.

10. The method of claim 8,

11. The method according to any of claims 8 to 10, wherein the N-1 th of the N first transmission resources comprises W second transmission resources, W being a positive integer.

12. The method of claim 11, wherein when the configuration parameter satisfies the first condition, the initial transmission resource is a transmission resource corresponding to RV3, and the initial transmission resource is any one of the W second transmission resources.

13. The method according to claim 11 or 12,

when the configuration parameter meets a first condition or a second condition, the initial transmission resource is a transmission resource corresponding to RV0, and the initial transmission resource is any one of N first transmission resources except for an nth first transmission resource and a fifth transmission resource, where the second condition is: the repetition type is type B, the RV sequence is a second sequence, and K is greater than or equal to 8.

14. The method of claim 13,

15. A communications apparatus comprising means for performing the method of any of claims 1-7.

16. A communications apparatus comprising means for performing the method of any of claims 8 to 14.

17. A communications device comprising a processor and interface circuitry for receiving and transmitting signals from or sending signals to other communications devices than the communications device, the processor being operable by logic circuitry or executing code instructions to implement the method of any one of claims 1 to 7.

18. A communications device comprising a processor and interface circuitry for receiving and transmitting signals from or sending signals to a communications device other than the communications device, the processor being operable by logic circuitry or executing code instructions to implement the method of any of claims 8 to 14.

19. A computer-readable storage medium, in which a computer program or instructions are stored which, when executed by a communication apparatus, carry out the method of any one of claims 1 to 7 or 8 to 14.

20. A computer program product, characterized in that it comprises instructions which, when executed, implement the method according to any one of claims 1 to 7 or 8 to 14.

21. A communication system comprising a communication device according to claim 15 or 17 and a communication device according to claim 16 or 18.