CN113439468A

CN113439468A - Data transmission method and device

Info

Publication number: CN113439468A
Application number: CN202080001595.6A
Authority: CN
Inventors: 申建平; 花梦
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-01-23
Filing date: 2020-01-23
Publication date: 2021-09-24
Anticipated expiration: 2040-01-23
Also published as: CN113439468B; WO2021147104A1

Abstract

The application discloses a data transmission method and a data transmission device, wherein the method comprises the following steps: receiving first downlink control information, DCI; the first DCI is used for indicating first scheduling information of first resources, and the type of the first resources is a Physical Uplink Shared Channel (PUSCH) or a Physical Downlink Shared Channel (PDSCH); receiving second DCI, wherein the second DCI is used for indicating second scheduling information of second resources; the type of the second resource is PUSCH or PDSCH; and when the first scheduling information conflicts with the second scheduling information, transmitting data on the first resource or transmitting data on the second resource according to one or more items of the reliability of the DCI, the time domain information of the first resource and the time domain information of the second resource.

Description

Data transmission method and device

Technical Field

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

Background

For a Next Radio (NR) communication system, a Physical Uplink Shared Channel (PUSCH) resource occupied by transmitted data may be indicated in a manner that a network device transmits Downlink Control Information (DCI), and further, a terminal device may transmit data on a PUSCH; a Physical Downlink Shared Channel (PDSCH) resource occupied by the received data may be indicated by a manner in which the network device sends DCI, and then the terminal device may receive the data on the PDSCH.

In order to ensure that data transmission does not collide, it is necessary to ensure that data transmission of any two PUSCHs or data reception of any two PDSCHs do not overlap in a time domain. Further, the terminal device transmits data on the PUSCH according to the principle of scheduling first transmission, that is, the DCI detected blindly first, the indicated PUSCH needs to be transmitted first, the detected DCI is then transmitted, and the data on the indicated PUSCH is then transmitted. For data transmission under a hybrid automatic repeat request (HARQ) mechanism, for a same HARQ process, the network device sends DCI to the terminal device, where the DCI is used to instruct the terminal device to send data on a PUSCH indicated by the DCI, and after the terminal device sends data on the PUSCH indicated by the DCI, the network device determines, according to a transmission result of the data sent by the terminal device, a next DCI for sending the same HARQ process, where the DCI is used to instruct a next PUSCH resource, for example, if it is determined that the data sent by the terminal device does not need to be retransmitted, it may indicate a PUSCH resource occupied by next newly transmitted data of the HARQ process, and if it is determined that the data sent by the terminal device needs to be retransmitted, it may indicate a next DCI of the same HARQ process, where the DCI is used to instruct the terminal device to send retransmitted data. Therefore, after the terminal device receives one piece of DCI, it should not receive other pieces of DCI of the same HARQ process until the terminal device transmits data according to the PUSCH indicated by the DCI.

For receiving data of PDSCH by the terminal device, the terminal device needs to follow the principle of scheduling first and receiving first, that is, first, DCI detected blindly, indicated PDSCH needs to receive first and then, detected DCI, and indicated data on PDCCH is received later. Moreover, for a same HARQ process, it is necessary to perform the indication of the next DCI after receiving the DCI-indicated PDSCH, so as to ensure that the data in the same HARQ process are not received in conflict.

However, in an actual transmission process, due to problems such as channel conditions or terminal parsing capability, a first DCI that is first blindly detected by a terminal device may occur, where the first DCI is used to instruct the terminal device to transmit data on a first PUSCH, and then a second DCI is detected and used to instruct the terminal device to transmit data on a second PUSCH; however, the first PUSCH is located after the second PUSCH, or the first PUSCH and the second PUSCH overlap, so that the terminal device cannot correctly transmit corresponding data on the PUSCH. Or, a first DCI which is first blindly detected by the terminal may occur, where the first DCI is used to instruct the terminal device to receive data on the first PDSCH, and then a second DCI is detected, where the second DCI is used to instruct the terminal device to receive data on the second PDSCH; and the first PDSCH is located behind the second PDSCH, or the first PDSCH overlaps with the second PDSCH, so that the terminal device cannot correctly receive corresponding data on the PDSCH.

Disclosure of Invention

The application provides a data transmission method and device, which are used for avoiding the conflict problem of DCI (Downlink control information) scheduling of terminal equipment and ensuring that the terminal equipment correctly receives corresponding data on a PDSCH (physical Downlink shared channel) or correctly sends corresponding data on a PUSCH (physical uplink shared channel).

In a first aspect, an embodiment of the present application provides a data transmission method, where a first DCI and a second DCI are received, and when first scheduling information conflicts with second scheduling information, data is transmitted on a first resource or data is transmitted on a second resource according to one or more of reliability of the DCI, time domain information of the first resource, and time domain information of the second resource, where the reliability of the DCI includes: a confidence level of the first DCI and a confidence level of the second DCI. The first DCI is used for indicating first scheduling information of first resources, and the type of the first resources is PUSCH or PDSCH; the second DCI is used for indicating second scheduling information of a second resource; the type of the second resource is PUSCH, or PDSCH.

According to the method, when the first DCI and the second DCI are compared to determine that the first scheduling information conflicts with the second scheduling information, data is transmitted on the first resource or the second resource according to one or more items of the reliability of the DCI, the time domain information of the first resource and the time domain information of the second resource, so that the problem that in the prior art, if whether the first scheduling information conflicts with the second scheduling information cannot be known, the data is transmitted on the first resource indicated by the first DCI and the data is transmitted on the second resource indicated by the second DCI, and errors occur in the transmitted data is solved.

One possible design, where the first scheduling information conflicts with the second scheduling information, may include: the first resource and the second resource are of the same type, the HARQ process Identifications (IDs) of the first resource and the second resource are the same, and the time for receiving the second DCI is earlier than the time for transmitting data on the first resource; or the types of the first resource and the second resource are the same, the HARQ process IDs of the first resource and the second resource are different, and the time domain symbols of the first resource and the second resource are overlapped. Or the types of the first resource and the second resource are the same, the HARQ process IDs of the first resource and the second resource are different, and the time domain symbol of the second resource is earlier than the time domain symbol of the first resource.

By the method, different situations of conflict between the first scheduling information and the second scheduling information can be confirmed, so that the problem that data transmission errors occur due to the fact that data are transmitted on the first resource indicated by the first DCI and data are transmitted on the second resource indicated by the second DCI under the situation that whether the conflict exists between the first scheduling information and the second scheduling information cannot be known in the prior art is solved.

One possible design is to transmit data on a first resource when the confidence level of a first DCI is greater than or equal to the confidence level of a second DCI; or transmitting data on the second resource when the credibility of the first DCI is less than the credibility of the second DCI.

And comparing the reliability of the first DCI with the reliability of the second DCI, and taking the resource indicated by the DCI with higher reliability as the resource for transmitting data, thereby improving the performance of transmitting data and the reliability of data transmission.

In one possible design, the time domain information for the first resource includes a time domain symbol for the first resource; the time domain information of the second resource comprises a time domain symbol of the second resource; and transmitting data on the first resource or the second resource when the time domain symbol of the second resource is earlier than the time domain symbol of the first resource or the time domain symbol of the first resource and the time domain symbol of the second resource are overlapped.

By the method, on the premise that the scheduling information conflict of the same communication type does not exist in the scheduling of the first scheduling information after the second scheduling information is determined, the first data is transmitted on the first resource indicated by the first scheduling information, and the flexibility of data transmission and the reliability of data transmission can be improved.

A possible design, the trustworthiness of the first DCI may include one or more of: the signal-to-noise ratio of the soft demodulation information of the first DCI, and the difference value of the signal-to-noise ratio of the first DCI and the average value of the historical signal-to-noise ratios; the confidence level of the second DCI may include one or more of: the signal-to-noise ratio of the soft demodulation information of the second DCI, and the difference value of the signal-to-noise ratio of the second DCI and the average value of the historical signal-to-noise ratios.

By combining the above embodiment, when the resource indicated by the DCI with a high reliability is used as a resource for transmitting data, the resource used by the terminal device for transmitting data is a resource with a high reliability, so that the performance of transmitting data is effectively improved, and the reliability of data transmission is improved.

In one possible design, a time interval between a time when the first DCI is received and a time when data is transmitted on the first resource is greater than a first duration; the first duration is determined according to the capability of a User Equipment (UE); the time interval between the time of receiving the second DCI and the time of transmitting the data on the second resource is longer than the second time length; the second duration is determined according to the UE capability.

By the method, whether the time interval between the first DCI and the first resource is smaller than the processing capability of the terminal device or not can be judged, and if the time interval is smaller than the processing capability of the terminal device, the first resource indicated by the first DCI is determined to be unavailable, and the first resource indicated by the first DCI is discarded. Or, based on determining whether the time interval between the second DCI and the second resource is smaller than the processing capability of the terminal device, if it is determined that the time interval is smaller than the processing capability of the terminal device, it is determined that the second resource indicated by the second DCI is unavailable, and then the second resource indicated by the second DCI is discarded. And unnecessary processing resources are prevented from being wasted by the terminal equipment.

In a second aspect, the present application provides a data transmission device (hereinafter referred to as a device) having a function of implementing the steps performed in the method example of the first aspect. The device can be located in the terminal equipment, and also can be located in a chip corresponding to the terminal equipment. The above functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above. In one possible implementation, the apparatus includes a processing unit and a transceiver unit in its structure, and these units may perform the corresponding steps or functions performed by the first device in the above-mentioned method example of the first aspect, including the transceiver unit and the processing unit. The receiving and sending unit is used for receiving the first DCI; the first DCI is used for indicating first scheduling information of a first resource, wherein the type of the first resource is PUSCH or PDSCH; receiving second DCI, wherein the second DCI is used for indicating second scheduling information of second resources; the type of the second resource is PUSCH or PDSCH; the processing unit is used for transmitting data on the first resource or transmitting data on the second resource according to one or more items of the reliability of the DCI, the time domain information of the first resource and the time domain information of the second resource when the first scheduling information conflicts with the second scheduling information; the reliability of the DCI includes: a confidence level of the first DCI and a confidence level of the second DCI.

One possible design, the processing unit, is specifically configured to: when the credibility of the first DCI is greater than or equal to the credibility of the second DCI, transmitting data on the first resource; or transmitting data on the second resource when the credibility of the first DCI is less than the credibility of the second DCI.

One possible design, the processing unit, is specifically configured to: transmitting data on the first resource or the second resource when the time domain symbol of the second resource is earlier than the time domain symbol of the first resource or the time domain symbol of the first resource and the time domain symbol of the second resource are overlapped; the time domain information of the first resource comprises a time domain symbol of the first resource; the time domain information of the second resource includes a time domain symbol of the second resource.

One possible design, the processing unit, is further to: determining that a time interval between the time of receiving the first DCI and the time of transmitting data on the first resource is greater than a first duration; the first duration is determined according to the UE capability of the terminal equipment; determining that a time interval between the time of receiving the second DCI and the time of transmitting data on the second resource is greater than a second duration; the second duration is determined according to the UE capability.

In a third aspect, the present application provides a communication device having a function for implementing the method, which includes means (means) for performing any one of the first aspect, possible implementations of the first aspect, and the described steps or functions. The steps or functions may be implemented by software, or by hardware (e.g., circuits), or by a combination of hardware and software. The device can be a terminal device or a chip on the terminal device.

In one possible implementation, the apparatus includes one or more processors and a communication unit. The one or more processors are configured to enable the communication device to perform the respective functions of the above-described methods. Optionally, the communication device may also include one or more memories for coupling with the processor, which stores the necessary program instructions and/or data for the device. The one or more memories may be integrated with the processor or may be separate from the processor. The present application is not limited.

In another possible implementation, the communication device includes a transceiver, a processor, and a memory. The processor is configured to control the transceiver or the input/output circuit to transceive signals, the memory is configured to store a computer program, and the processor is configured to execute the computer program in the memory, so that the communication apparatus performs the method performed in any one of the possible implementations of the first aspect and the first aspect.

In one possible implementation, the communication device includes one or more processors and a communication unit. The one or more processors are configured to enable the communication device to perform the respective functions of the above-described methods. Optionally, the communication device may further comprise one or more memories for coupling with the processor, which stores program instructions and/or data necessary for the terminal device. The one or more memories may be integrated with the processor or may be separate from the processor. The present application is not limited. The communication means may be located in the terminal device or be a chip on the terminal device.

In another possible implementation, the apparatus includes a transceiver, a processor, and a memory. The processor is configured to control the transceiver or the input/output circuit to transceive signals, the memory is configured to store a computer program, and the processor is configured to execute the computer program in the memory, so that the apparatus performs the method performed by the originating device or the terminating device in any one of the possible implementations of the first aspect and the first aspect.

In a fourth aspect, a computer-readable storage medium is provided for storing a computer program comprising instructions for performing the method of the first aspect, any of the possible implementations of the first aspect.

In a fifth aspect, there is provided a computer program product comprising: computer program code for causing a computer to perform the method of any of the possible implementations of the first aspect and the first aspect as described above, when the computer program code runs on a computer.

A sixth aspect provides a communication device, such as a system-on-chip or the like, connected to a memory, for reading and executing a software program stored in the memory, and executing the method in any one of the possible implementations of the first aspect and the first aspect.

Drawings

Fig. 1A-1B are schematic network architectures of a communication system suitable for use in the embodiments of the present application;

fig. 2 is a schematic diagram of data transmission using multiple parallel HARQ in the embodiment of the present application;

fig. 3A-3B are schematic diagrams illustrating a sending end device sending DCI to a receiving end device in an embodiment of the present application;

FIGS. 4A-4C are schematic diagrams illustrating overlapping of time-frequency resources according to an embodiment of the present disclosure;

fig. 5A-5B are schematic diagrams illustrating a sending end device sending DCI to a receiving end device according to an embodiment of the present application;

fig. 6A-6B are schematic diagrams illustrating a sending end device sending DCI to a receiving end device according to an embodiment of the present application;

fig. 7 is a schematic flowchart of a data transmission method provided in an embodiment of the present application;

fig. 8A-8B are schematic diagrams of a data transmitting and receiving method provided in an embodiment of the present application;

fig. 9A-9B are schematic flow charts illustrating a data receiving method according to an embodiment of the present disclosure;

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

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

Detailed Description

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD), universal mobile telecommunications system (universal mobile telecommunications system, UMTS), Worldwide Interoperability for Microwave Access (WIMAX) communication systems, fifth generation (5G) or new NR systems, etc., or other similar communication systems applied to future communications.

The technical scheme of the embodiment of the application can be applied to unmanned driving (unmanned driving), Assisted Driving (ADAS), Intelligent driving (Intelligent driving), Internet driving (connected driving), Intelligent Internet driving (Intelligent network driving), automobile sharing (car sharing), Intelligent automobile (smart/interactive car), digital automobile (digital car), unmanned automobile (unmanned car/dynamic car/pilot car/autonomous mobile), Internet networking (Internet networking, IoV), automatic automobile (self-driving car, autonomous car), road coordination (cooperative information architecture, CVIS), Intelligent transportation (Intelligent transportation, system communication, and the like).

In addition, the technical solution provided in the embodiment of the present application may be applied to a cellular link, and may also be applied to a link between devices, for example, a device to device (D2D) link. The D2D link or the V2X link may also be referred to as a side link, a secondary link, a sidelink, or the like. In the embodiments of the present application, the above terms all refer to links established between devices of the same type, and have the same meaning. The devices of the same type may be links from the terminal device to the terminal device, links from the base station to the base station, links from the relay node to the relay node, and the like, which are not limited in this embodiment of the present application.

In order to make the embodiments of the present invention clearer, the following provides a general description of some of the contents and concepts related to the embodiments of the present invention.

1) Terminal equipment, also known as a terminal, includes equipment that provides voice or data connectivity to a user, and may include, for example, handheld devices having wireless connection capabilities or processing devices connected to wireless modems. The terminal device may communicate with a core network via a Radio Access Network (RAN), exchanging voice and/or data with the RAN. The terminal device may include a User Equipment (UE), a V2X terminal device, a wireless terminal device, a mobile terminal device, a device-to-device communication (D2D) terminal device, a machine-to-machine/machine-type communication (M2M/MTC) terminal device, an internet of things (IoT) terminal device, a subscriber unit (subscriber unit), a subscriber station (subscriber state), a mobile station (mobile state), a remote station (remote state), an access point (access point, AP), a remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), or a user equipment (user device), etc. For example, mobile telephones (or so-called "cellular" telephones), computers with mobile terminal equipment, portable, pocket, hand-held, computer-included mobile devices, and the like may be included. 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. Also included are constrained devices, such as devices that consume less power, or devices that have limited storage capabilities, or devices that have limited computing capabilities, etc. Examples of information sensing devices include bar codes, Radio Frequency Identification (RFID), sensors, Global Positioning Systems (GPS), laser scanners, and the like.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable smart device or intelligent wearable equipment etc. is the general term of using wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets, smart helmets, smart jewelry and the like for monitoring physical signs.

The various terminal devices described above, if located on a vehicle (e.g., placed in or installed in the vehicle), may be considered to be vehicle-mounted terminal devices, which are also referred to as on-board units (OBUs), for example. When the terminal device is a vehicle-mounted terminal device, the vehicle-mounted terminal device can feed back HARQ response information corresponding to downlink scheduling, and can also feed back HARQ response information corresponding to side-row scheduling. Therefore, in the embodiment of the present invention, the HARQ response information described below may include HARQ response information corresponding to sidelink data in addition to HARQ response information corresponding to downlink data.

2) Network devices, such as Access Network (AN) devices, Radio Access Network (RAN) devices, and access network devices, such as base stations (e.g., access points), may refer to devices in AN access network that communicate with wireless terminal devices over AN air interface through one or more cells. The base station may be configured to interconvert received air frames and Internet Protocol (IP) packets as a router between the terminal device and the rest of the access network, which may include an IP network. The network device may also coordinate attribute management for the air interface. For example, the network device may include an evolved Node B (NodeB or eNB or e-NodeB) in a Long Term Evolution (LTE) system or an advanced long term evolution (LTE-a), or may also include a next generation Node B (gNB) or a next generation evolved Node B (gNB) in a fifth generation mobile communication technology (5G) New Radio (NR) system: enhanced next generation base stations; the system may also include a Centralized Unit (CU) and a Distributed Unit (DU) in a Cloud RAN (Cloud RAN) system, or may also include a relay device, which is not limited in the embodiment of the present application.

In this embodiment, the network device may further include a core network device, and the core network device includes, for example, a network device that processes and forwards signaling and data of a user. In the 4G system, one core network device is, for example, a Mobility Management Entity (MME). The MME is a key control node of an access network of the LTE system defined by the 3rd generation partnership project (3 GPP) protocol, and is responsible for positioning and paging procedures of idle mode terminal devices, and the like, including relaying. In short, the MME is a core network device responsible for a signaling processing part. Or, in the 5G system, the core network device includes, for example, a core network device such as an access management network element, a session management network element, or a user plane gateway. The user plane gateway may be a server having functions of performing mobility management, routing, forwarding and the like on user plane data, and is generally located on a network side, such as a Serving Gateway (SGW) or a packet data network gateway (PGW) or a user plane network function (UPF).

3) And an air interface resource, in which a base station and a UE may perform data transmission through a user to Network interface UE (Uu) resource. The air interface resources may include time domain resources and frequency domain resources, which may also be referred to as time frequency resources. The frequency domain resources may be located in a set frequency range, which may also be referred to as a band (band) or a frequency band, and the width of the frequency domain resources may be referred to as a Bandwidth (BW).

4) The time frequency resource may be a resource grid including time domain and frequency domain. For example, the time domain unit may be a symbol (symbol), and the frequency domain unit may be a subcarrier (subcarrier). The smallest resource unit in the resource grid may be referred to as a Resource Element (RE). One Resource Block (RB) may include one or more subcarriers, such as 12 subcarriers, in the frequency domain. One slot may include one or more symbols in the time domain, such as one slot in NR may include 14 symbols (in case of Cyclic Prefix (CP)) or 12 symbols (in case of extended cyclic prefix). The frequency domain resources are generally in units of orthogonal frequency division multiplexing multiple access (OFDM) symbols, sub-slots (sub-slots), slots (slots), subframes (subframes), or frames (frames). It should be noted that the terms "time-frequency resource" and "resource" in the embodiments of the present application may be used interchangeably.

5) Hybrid automatic repeat request (HARQ) is a technique formed by combining forward error correction coding and automatic repeat request. For example, the network device may allocate and indicate a time-frequency resource for sending Channel State Information (CSI) and HARQ response information to the terminal, so that the terminal device sends corresponding HARQ response information on the indicated time-frequency resource.

In order to improve the reliability of data transmission in communication, a HARQ feedback retransmission mechanism is introduced. For example, in downlink communication, a process of feeding back and retransmitting downlink data is shown in fig. 2, and includes the following steps.

Step 1, the network equipment transmits downlink data to the terminal equipment newly.

And the network equipment transmits downlink data through the PDSCH on the time-frequency resource with the time domain position of the time slot n. And indicating the terminal equipment to feed back the HARQ response information corresponding to the downlink data on the time-frequency resource with the time domain position of time slot n + k through the PDCCH.

And 2, the terminal equipment receives newly transmitted downlink data of the network equipment and decodes the downlink data. If the decoding fails, the terminal device feeds back a Negative Acknowledgement (NACK) message to the network device.

When the terminal equipment receives the data on the time-frequency resource with the time domain position of the time slot n, the HARQ response information is fed back on the time-frequency resource with the time domain position of the time slot n + k. For example, if it is determined that the decoding fails, the HARQ response information fed back by the terminal device on the time-frequency resource whose time domain position is time slot n + k is a NACK message; if it is determined that the decoding is successful, the HARQ response information fed back by the terminal device on the time-frequency resource with the time domain position of the timeslot n + k is an Acknowledgement (ACK) message.

And step 3, after receiving the NACK message, the network equipment retransmits the downlink data to the terminal equipment.

And 4, after receiving the downlink data retransmitted by the network equipment, the terminal equipment returns an ACK message to the network equipment if the retransmitted downlink data is successfully decoded.

For example, in uplink communication, the process of uplink data feedback retransmission may include the following steps.

Step 1, the network device schedules new data used for uplink data by the terminal device on the PDCCH.

Specifically, the network device may send DCI to the terminal device through the PDCCH, where the DCI may be used to instruct the terminal device to transmit new data on the first PUSCH.

And step 2, the terminal equipment sends uplink data to the network equipment based on the scheduling of the step 1.

The terminal equipment decodes the DCI sent by the network equipment to obtain a first PUSCH indicated by the DCI, confirms that the data transmitted on the first PUSCH is newly transmitted data, and further sends the newly transmitted data on the first PUSCH.

And 3, after the network equipment receives the uplink data, decoding the uplink data. If the decoding fails, the network device schedules the terminal device on the PDCCH for retransmission of the uplink data.

And 4, retransmitting the uplink data to the network equipment by the terminal equipment based on the scheduling of the step 3.

The following specifically describes the HARQ-related content through the two contents (a) to (b).

(a) HARQ process (HARQ process)

HARQ uses stop-and-wait protocol (stop-and-wait protocol) to transmit data. In the standby protocol, after a transmitting device sends a Transport Block (TB), it is stopped and waits for an acknowledgement. The receiving end may feed back HARQ response information to the TB, for example, the receiving end feeds back an ACK message to the TB, or the receiving end feeds back a NACK message to the TB. But the sending end device stops waiting for an acknowledgement after each transmission, resulting in low throughput. Thus, multiple parallel HARQ processes may be used: while one HARQ process is waiting for an acknowledgement, the transmitting end device may continue to transmit data using another HARQ process. Illustratively, referring to fig. 2, multiple parallel HARQ processes may be used: while one HARQ process is waiting for acknowledgement information, the transmitting end device may continue to transmit data using another HARQ process. A plurality of parallel HARQ processes may be combined into one HARQ entity, each terminal device may have one HARQ entity, which may maintain a certain number of parallel HARQ processes, each process has one Identity (ID), and the HARQ entity may send HARQ response information and a transport block received on the DL-SCH to the corresponding HARQ process. In the embodiment of the present application, one HARQ entity maintains or manages K HARQ processes (HARQ processes) to implement a HARQ feedback retransmission mechanism. And K is a positive integer, and the value of K can be predefined by a protocol or configured by the network equipment for the terminal equipment. For example, K may take the value 16. For example, for one terminal device, M HARQ entities for sidelink (sidelink) communication and N HARQ entities for air interface Uu communication may be included. In carrier aggregation, each carrier aggregation unit has a respective HARQ entity, and generally one communication carrier corresponds to one HARQ entity. Taking downlink communication as an example, when there is one carrier for downlink communication, one terminal device includes one HARQ entity for downlink communication. For another example, when the number of carriers used for downlink communication is Q, Q HARQ entities for downlink communication may be included in one terminal device. If spatial diversity is defined at the physical layer, one or two transport blocks may be received within a subframe, which are both associated with one HARQ entity. If 2 TBs are transmitted in parallel in one Transmission Time Interval (TTI), each TB has its own HARQ ack information, and 1 HARQ entity includes 2 HARQ process sets.

It should be noted that, for either sidelink communication or Uu port communication, one HARQ process is used for communication of one TB. For example, HARQ process 1 is used for communication of TB1, and HARQ process 1 can be used for communication of other TBs only after transmission of TB1 is completed. While the transmission of TB1 is not over, the transmission of other TBs cannot occupy HARQ process 1. That is, HARQ process 1 is occupied by the transmission of TB1, and cannot be used for the transmission of other TBs until the TB transmission ends. In addition, in the embodiment of the application, the HARQ process is indicated by the HARQ process ID, and HARQ process IDs of different HARQ processes maintained by the same HARQ entity are different.

(b) Mechanism for processing newly transmitted data and retransmitted data by receiving end equipment

Each HARQ process has a corresponding buffer (e.g., HARQ buffer or soft buffer) at a receiving end device (which may be a terminal device or a network device) for soft combining and decoding the received data.

After receiving end equipment receives new data transmitted by sending end equipment by using one HARQ process, the received new data may be placed in a buffer (e.g., HARQ buffer or soft buffer) corresponding to the HARQ process, and the receiving end equipment may use the stored data to perform joint processing (e.g., a combined manner or a combined manner) with the last received data (e.g., currently received data) so as to enhance decoding reliability. If the decoding fails, when the retransmission data of the newly transmitted data is received again, the received retransmission data and the newly transmitted data previously stored in the buffer may be combined, and placed in the buffer for decoding again, which may be referred to as soft combining decoding. Specifically, the HARQ mechanism may include chase combining HARQ and Incremental Redundancy (IR) HARQ. For chase HARQ, the transmitting end (e.g., the encoder) repeatedly transmits the same data at each retransmission. The receiving end device (e.g., decoder) performs decoding (e.g., attempts to decode) the data by combining all previously received data. For example, the decoder decodes the currently received retransmitted data in combination with data from a historical (e.g., previously received and stored) erroneous transmission of previous transmissions. In decoding, soft decoding may be performed using a Log Likelihood Ratio (LLR). The LLR is used to indicate a soft decision of the likelihood of whether the code bit is 1 or 0. In a Long Term Evolution (LTE) system, LLRs for an entire round-trip time (RTT) may be stored in a buffer, e.g., the LLRs may be buffered in a physical layer HARQ LLR buffer. By using the LLR, soft combining is performed on the decoded bits (for example, bits with LLR lower than a preset threshold are filtered, and decoding is performed according to bits with LLR greater than or equal to the preset threshold, or weighted averaging is performed on the decoded bits according to LLR), so that the decoding success rate of soft combining is improved. For Incremental Redundancy (IR) HARQ, a transmit segment may send data consisting of new parity bits at each retransmission. The receiving end device stores all previously received data. For example, additional redundant information is transmitted in each retransmission to increase channel coding gain, where the retransmission is made up of new parity bits from the channel encoder. Different bits (e.g., new parity bits) may be transmitted by employing different rate matching (puncturing) patterns, which may allow for an increase in the effective code rate while transmitting less retransmission data.

The probability of successful decoding is improved compared to decoding alone (i.e., the data for each transmission is decoded alone and not combined with the previous data for decoding). Similarly, if the decoding still fails, the above process may be repeated, and the newly received retransmission data and the data in the buffer are soft-combined and decoded again.

5) A time window may refer to a time range or time period having a start time and an end time, and the length of the time window is the length from the start time to the end time. A time window may contain one or more time units including slots, symbols, subframes, etc.

6) The terms "system" and "network" in embodiments of the present invention may be used interchangeably. "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. In addition, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified.

In order to facilitate understanding of the embodiments of the present invention, an application scenario of the present application is described below.

Fig. 1A is a schematic view of a possible application scenario in the embodiment of the present invention. Fig. 1A includes a terminal device and a network device, which can communicate with each other. After the network equipment sends downlink data to the terminal equipment, the terminal equipment feeds back HARQ response information to the network equipment according to the receiving condition of the downlink data, wherein the HARQ response information comprises an ACK message and a NACK message. If the terminal device successfully receives the downlink data sent by the network device, the terminal device may reply an ACK to the network device, and the network device may continue to transmit new data or end the transmission process. If the terminal equipment fails to receive the downlink data sent by the network equipment, the terminal equipment can reply NACK to the network equipment, and the network equipment can retransmit the data transmitted last time, so that the success rate of data transmission is improved as much as possible. If the base station does not receive any feedback, the terminal device is considered to be in a Discontinuous Transmission (DTX) state.

Please refer to fig. 1B, which is a schematic diagram of another possible application scenario in the embodiment of the present invention. Fig. 1B includes a network device, a terminal device 1, and a terminal device 2, where both the terminal device 1 and the terminal device 2 may communicate with the network device, and the terminal device 1 and the terminal device 2 may also communicate with each other directly (i.e., device to device (D2D) communication). The link over which terminal device 1 and terminal device 2 communicate directly is a sidelink. The network device may send DCI to the terminal device, for example, the terminal device 1, to indicate a downlink or uplink transmission resource, for example, the DCI is used to schedule the terminal device 1 to receive downlink data sent by the network device, and HARQ response information corresponding to the downlink data may be reported to the network device by the sending device, that is, the terminal device 1. Or, the DCI is used to schedule the terminal device 2 to send uplink data to the network device, and the HARQ response information corresponding to the uplink data may be reported to the network device by the sending device, that is, the terminal device 1. Or the network device sends DCI to the terminal device 1 to the terminal device 2, where the DCI is used to indicate a transmission resource of a sidelink, and schedules the terminal device 1 to send sidelink data to the terminal device 2, and HARQ response information corresponding to the sidelink data may be reported to the network device by the sending device, that is, the terminal device 1.

In the above application scenario, taking the first device as a data sending end device and the second device as a data receiving end device as an example, the first device may perform communication with multiple second devices at the same time, that is, the first device may perform multiple unicast communications or multiple multicast communications or multiple broadcast communications with one or multiple second devices at the same time, and therefore, the first device may correspond to one or multiple source addresses and be respectively used for communication with different receiving end devices. The second device as a data receiving end device may communicate with multiple sending end devices at the same time, that is, the second device may communicate with one or multiple sending end devices at the same time by multiple unicast communications or multiple multicast communications or multiple broadcast communications, and thus the second device may correspond to one or multiple destination addresses for communication with different receiving end devices respectively. When the first device serves as a data sending end device and performs communication of different communication types (for example, a unicast communication and a multicast communication) at the same time, source addresses corresponding to different communication types may be the same or different, and the present application is not limited thereto. Similarly, for the second device, when the second device serves as a data receiving end device and performs communication of different communication types (for example, a unicast communication and a multicast communication) at the same time, destination addresses corresponding to different communication types may be the same or different, and the present application is not limited thereto. For example, the first communication type may be any one or more of unicast, multicast, and broadcast, and the communication type may also be referred to as broadcast type cast-type, transmission method, or the like, or may also have other names, which is not limited in this application.

In the 5G system, the feedback time of the HARQ response information may be configured by the network device through Radio Resource Control (RRC) signaling, or may be indicated through Downlink Control Information (DCI) in dynamic signaling. The transmission of DCI is generally completed through a Physical Downlink Control Channel (PDCCH), but the transmission of PDCCH is not completely reliable, and the terminal device is affected by channel conditions, a parsing algorithm of DCI by the terminal device, and other factors, and there still exists a situation that the terminal device cannot receive PDCCH and cannot correctly parse DCI, or the network device does not transmit DCI for the terminal device, but the terminal device parses DCI corresponding to Cyclic Redundancy Check (CRC), which causes a collision between a PUSCH or PDSCH indicated by DCI parsed by the terminal device and PUSCH or PDSCH indicated by other DCI, and further, when the terminal device transmits data on a PUSCH or PDSCH with resource collision, a transmission error of data may be caused, thereby increasing unnecessary retransmission and affecting transmission efficiency and performance.

The following example illustrates a scenario where there is a scheduling information conflict:

in the first scenario of scheduling information collision, if it is determined that any two PUSCH transmissions or PDSCH receptions are overlapped in the time domain. For example, if it is determined that the DCI detected by the second device at different times indicates the PUSCH transmission time or the PDSCH reception time at the same time, it is determined that the scheduling information collides. As shown in fig. 3A, the DCI1 detected by the terminal device at the first time indicates the first resource PUSCH1, the DCI2 detected by the second device at the second time indicates the second resource PUSCH2, and the PUSCH1 and the PUSCH2 overlap in the time domain, and it is determined that the scheduling information of the DCI1 and the DCI2 collide. Alternatively, as shown in fig. 3B, the DCI1 detected by the terminal device at the first time indicates the first resource PDSCH1, the DCI2 detected by the second device at the second time indicates the second resource PDSCH2, and the PDSCH1 and PDSCH2 overlap in the time domain, it is determined that the scheduling information of the DCI1 and the DCI2 collide.

Taking the first DCI indicating the first resource and the second DCI indicating the second resource as an example, the first resource and the second resource may collide with each other, where the resources are overlapped in a time domain, or the first resource and the second resource are located in the same time window. In the embodiment of the present invention, there may be multiple ways in which the first resource and the second resource overlap in the time domain, and as long as at least one OFDM symbol is the same in the time domain, the first resource and the second resource may be considered to overlap in the time domain. The first, first resource and the second resource partially overlap in the time domain, e.g., fig. 4A; in the second type, the first resource and the second resource are completely overlapped in the time domain, for example, fig. 4B. It should be understood that the first resource and the second resource are located in different serving cells or carriers, and the different serving cells or carriers have different subcarrier spacings SCS, so that the first resource and the second resource are considered to overlap in the time domain as long as one symbol is the same in the time domain position in the time domain regardless of which subcarrier corresponds to the symbol, for example, fig. 4C.

In a second scheduling information conflict scenario, NR has the following limitations for network scheduling: for any two HARQ process IDs, the PUSCH/PDSCH which receives the DCI first transmits/receives, and then the PUSCH/PDCCH which detects the DCI transmits/receives, and the principle of scheduling first and transmitting/receiving is followed. Therefore, if the DCI detected first by the terminal device indicates a later PUSCH transmission time or PDSCH reception time, it is determined that there is a problem of scheduling information collision. As shown in fig. 5A, DCI1 detected by the terminal device at a first time indicates a first resource PUSCH1, DCI2 detected by the second device at a second time indicates a second resource PUSCH2, the first time is earlier than the second time, and a PUSCH1 is located in a slot later than a PUSCH2, that is, a time domain symbol of the second resource is earlier than a time domain symbol of the first resource, it is determined that scheduling information of DCI1 and DCI2 collide. Or, as shown in fig. 5B, the DCI1 detected by the terminal device at the first time indicates the first resource PDSCH1, the DCI2 detected by the second device at the second time indicates the second resource PDSCH2, the first time is earlier than the second time, and the time slot in which the PDSCH1 is located is later than the time slot in which the PDSCH2 is located, it is determined that the scheduling information of the DCI1 and the DCI2 collide.

In a third scenario of scheduling information collision, after receiving HARQ response information fed back by the receiving end device, the sending end device determines whether data to be sent next needs to send retransmission data of the first data, and if it is determined that the retransmission data of the first data needs to be sent, a second DCI may be generated, where the second DCI is used to indicate a second resource and transmit the retransmission data of the first data on the second resource. For example, if the HARQ response information fed back by the receiving end device is an ACK message, the method may include the following steps:

the method comprises the following steps: the sending end equipment sends first DCI to receiving end equipment, and the first DCI comprises: the HARQ process identifies the HARQ process ID 1.

Specifically, the receiving end device may determine, according to the first DCI indicated by the network device, the HARQ process identifier corresponding to the data transmitted on the PUSCH or the PDSCH indicated by the first DCI.

The information of the HARQ process ID may be carried in an explicit or implicit manner, for example, the first DCI may indicate the HARQ process identifier in a corresponding field, and further the sending end device or the receiving end device may determine the HARQ process ID1 according to the field, in the first DCI, corresponding to the HARQ process identifier. For another example, if the HARQ process id is not included in the first DCI, the terminal device may determine the HARQ process id according to a time interval (e.g., time gap between initial transmission and transmission) and frequency domain resource locations (e.g., frequency resource location of initial transmission and transmission) of the initial transmission and the retransmission in the DCI. Namely, the HARQ process identifier in the present application is replaced by the time interval between the initial transmission and the retransmission and the frequency domain resource location of the initial transmission and the retransmission.

Step two: the sending end device sends first data (e.g., data1) to the receiving end device according to the first resource indicated by the first DCI, where the data1 is newly transmitted data.

Step three: and the receiving end equipment receives the first data on the first resource indicated by the first DCI, and sends ACK feedback of the transmission to the transmitting end equipment if the receiving end equipment determines that the receiving is successful.

Step four: if the sending end device receives the ACK feedback for the transmission from the receiving end device, the sending end device UE1 considers that the transmission of the first data in step two is successful.

Step five: and the sending end equipment sends the second DCI to the receiving end equipment, and the second DCI is used for indicating the receiving end equipment to receive the second data on the second resource indicated by the second DCI. The second DCI includes: HARQ process ID 1.

Step six: the initiator device transmits second data (e.g., data2) to the sink device, the data2 being newly transmitted data.

For example, if the HARQ response information fed back by the receiving end device is a NACK message, the method may include the following steps:

the method comprises the following steps: the sending end equipment sends first DCI to receiving end equipment, and the first DCI comprises: HARQ process ID 1.

Step two: the transmitting end device transmits first data (e.g., data1) to the receiving end device according to the first resource indicated by the first DCI, and the data1 is newly transmitted data.

Step three: and the receiving end equipment receives the first data on the first resource indicated by the first DCI, and if the receiving end equipment determines that the receiving fails, the receiving end equipment sends NACK feedback of the transmission to the transmitting end equipment.

Step four: if the sending end device receives the NACK feedback from the receiving end device for the transmission, the sending end device considers that the transmission of the first data in step two fails.

Step five: and the sending end equipment sends the second DCI to the receiving end equipment, and the second DCI is used for indicating the receiving end equipment to receive the first data on the second resource indicated by the second DCI. The second DCI includes: HARQ process ID1(HARQ process ID).

Step six: the sender device sends first data (e.g., data1) to the sink device, data1 being retransmission data.

As can be seen from the above, in the same HARQ process, since the data sent each time may be newly transmitted data or retransmitted data, the sending end device may need to determine the data sent next time according to the situation that the receiving end device received the data last time; the receiving end equipment needs to analyze the data sent next time according to the data sent last time, so that the PUSCH/PDSCH scheduling of the same HARQ process needs to be executed serially by the network, and the scheduling information of the same HARQ process is not analyzed when the PUSCH/PDSCH of the same HARQ process is not scheduled. However, in a possible case, as in fig. 6A-6B, the receiving time of the DCI1 is delayed, and the start bit of the first resource corresponding to the parsed DCI1 is located in the slot n + 2. However, in the time slot n +1, the terminal device parses the DCI2 of the same HARQ process, and the terminal device cannot feed HARQ response information back to the first device when the first data is not received, so that the DCI2 should not be parsed before the first resource. Therefore, in the same HARQ process, it is detected that the PUSCH transmission or PDSCH reception corresponding to the DCI has not been completed, and a new DCI of the same HARQ process is detected to indicate transmission of data on the PUSCH or reception of data on the PDSCH, and it is determined that there is a scheduling information collision. For example, as shown in fig. 6A, the first DCI indicates HARQ process ID1, the second DCI indicates HARQ process ID1, and the PUSCH indicated by the first DCI corresponds to a time later than the detection time of the second DCI, so it may be determined that the scheduling information indicated by the first DCI conflicts with the scheduling information indicated by the second DCI. As shown in fig. 6B, the first DCI indicates HARQ process ID1, the second DCI indicates HARQ process ID1, and the PDSCH indicated by the first DCI corresponds to a time later than the detection time of the second DCI, so it may be determined that the scheduling information indicated by the first DCI conflicts with the scheduling information indicated by the second DCI.

Referring to fig. 7, a flowchart of a data sending and receiving method according to an embodiment of the present invention is shown, where the method includes:

s101, receiving first DCI; the first DCI is used for indicating first scheduling information of a first resource, wherein the type of the first resource is PUSCH or PDSCH;

after the first device obtains the first DCI, the scheduling information indicated by the DCI may be determined in the following manner.

Wherein the first DCI may include at least one of: HARQ process ID, indication information of the first time domain resource. The HARQ process ID may be used to indicate a HARQ process to which data transmitted on the first time domain resource corresponds.

For scheduling of uplink data, the indication information of the first time domain resource may include: the communication type of the first time domain resource may be PUSCH.

The indication information of the first time domain resource may further include: the PUSCH transmission time and the PUSCH transmission time information may be carried in an explicit or implicit manner, for example, explicitly exist as a field in DCI, or implicitly exist in a manner of scrambling DCI. Alternatively, the first DCI may be a UL grant, and in this case, the transmission time of the PUSCH may be determined according to the detection time of the first DCI (for example, slot n) (slot n + 4). Embodiments of the invention are not limited herein. When the terminal device receives the UL grant at the first time, the first channel may be an uplink shared channel, that is, the UL grant is used to instruct the terminal device to transmit the first resource of the uplink shared channel.

Further, the first device may determine, according to the indicated first DCI of the network device, that data transmitted on the PUSCH or PDSCH indicated by the first DCI is used for new transmission or retransmission, and/or used for a HARQ process corresponding to the HARQ process ID. For example, the network device schedules a first DCI through a first DCI, where the first DCI is scrambled through a Radio Network Temporary Identity (RNTI), the first device obtains the first DCI, the first DCI is a dynamic authorization resource of a transmission link, and a corresponding HARQ process ID may be indicated in the first DCI. The first device may determine whether the first DCI is used for new transmission or retransmission according to at least one of the RNTI and the HARQ process ID, and/or determine the first HARQ process.

For another example, the information of the HARQ process ID may be explicitly or implicitly carried, and if the field of the HARQ process ID is not included in the DCI, the terminal device may determine the HARQ process ID according to a time interval (e.g., time gap between initial transmission and retransmission) and frequency domain resource locations (e.g., frequency resource location of initial transmission and retransmission) of the initial transmission and retransmission in the DCI. Namely, the identifier of the HARQ process in the present application is replaced by the time interval between the initial transmission and the retransmission and the frequency domain resource location of the initial transmission and the retransmission.

For scheduling of downlink data, the indication information of the first resource may be used to indicate information of the reception time of the PDSCH, and the information of the reception time of the PDSCH may be carried in an explicit or implicit manner, for example, the information exists explicitly as a field in the DCI, or may exist implicitly by scrambling the DCI.

In the embodiment of the present invention, the downlink scheduling may be at least one of the following: the PDSCH receives or releases the semi-static PDSCH and the combination of the serving cell where the downlink control information DCI associated with the PDSCH is located and the downlink control channel monitoring opportunity; a DCI for scheduling PDSCH reception or semi-static PDSCH release; a downlink control channel PDCCH for bearing DCI information; PDSCH reception or release of semi-static PDSCH.

For scheduling of the sidelink data, the indication information of the first resource may be used to indicate a first channel, and when the terminal device receives a sidelink grant (SL grant) at a first time, the first channel may be a sidelink shared channel, that is, the SL grant is used to indicate the first resource of the sidelink shared channel transmitted by the terminal device. The side scheduling in the embodiment of the present invention may be at least one of the following: the combination of the PSSCH of the physical side row shared channel/PSCCH or the release of the semi-static PSSCH and the monitoring opportunity of the serving cell and the downlink control channel of the downlink control information DCI related to the PSSCH/PSCCH; DCI for scheduling PSSCH reception or semi-static PSSCH release; a downlink control channel PDCCH for bearing DCI information; PSCCH/PSCCH reception or release of semi-static PSCCH.

Further, the terminal device determines that the capability of the terminal device is satisfied when the time interval between the time of receiving the first DCI and the time of transmitting data on the first resource is greater than the first time length; the terminal equipment determines that the capability of the terminal equipment is met when the time interval between the time of receiving the second DCI and the time of transmitting the data on the second resource is larger than the second time length; the first duration and the second duration may be determined according to the UE capability, and the first duration and the second duration may be the same or different, and are not limited herein. The UE capabilities may include UE network capabilities and UE wireless access capabilities, for example, 3GPP release supported by the UE, UE class, UE transmission capability determined by the UE class between the base station and the UE, ROCH capability of the UE, UE radio frequency capability, band indication indicating that the UE supports, duplex mode, and UE measurement capability: whether gap is needed, the processing power of the UE, etc. Taking the processing capability of the UE as an example, the terminal device may determine whether the time interval between the first DCI and the first resource is smaller than the processing capability of the terminal device, and if it is determined that the time interval is smaller than the processing capability of the terminal device, it is determined that the first resource indicated by the first DCI is unavailable, and then the first resource indicated by the first DCI is discarded. Specifically, after receiving the data, the receiving end device performs processing such as channel estimation, demodulation, decoding, and the like, and then feeds back HARQ response information according to a decoding result. Wherein, the receiving processing time of the receiving end device is defined by the current standard as: an interval size from a last symbol (orthogonal frequency division multiplexing (OFDM) symbol) of data (e.g., service data) transmitted by the transmitting end device to a first symbol of HARQ response information fed back by the receiving end device, where a reception processing time of the receiving end device may be considered as a processing capability of the receiving end device. The receiving processing time of the terminal device may be defined as a size of an interval from a last symbol of traffic data (e.g. PDSCH data) to a first symbol of a channel (e.g. PUCCH) feeding back HARQ response information, where the interval is determined according to capability (capability 1, UE CAP #1) of the terminal device, for example, in current R15, the value of the interval may be as shown in tables 1 and 2 below:

table 1 PDSCH processing time (capability 1)

Table 2 PDSCH processing time (capability2)

Where μ represents the subcarrier spacing of the data channel, the spacing may be calculated as 15KHz x 2 μ.

Since a certain time interval is required from the time when the last symbol of the data is received by the receiving end device to the time when the first data starts to be received or transmitted, wherein the size of the time interval depends on the processing capability of the receiving end device, the time interval requires at least three symbols when the subcarrier interval is 15KHz in the current standard.

The first time interval is smaller than the set time threshold, and the first time interval is a time interval between the time when the nth service data ends and the time when the receiving end device sends the first data or signal to the sending end device. The first data may be traffic channel data (e.g., PUSCH channel data or pscch channel data), and the first signal may be a Sounding Reference Signal (SRS), a channel state information measurement reference signal (CSI-RS), or a Physical Random Access Channel (PRACH).

Further, the first device may determine the trustworthiness of the first DCI in the following manner.

One possible implementation manner is to determine the value of the reliability of the first DCI by analyzing the signal-to-noise ratio of the soft demodulation information determined during the first DCI.

The specific soft demodulation information may be soft information that can obtain a value probability of each information bit when the terminal device demodulates baseband data of the first DCI received by the terminal device; i.e. the demodulation result is quantized to an integer within an interval, e.g. the probability that the demodulation result is 1 or-1 is characterized by the absolute value of the value in the interval-M for bit-1, (-M, M). For the demodulation soft information of the high-order modulation signal, the soft information can be obtained by adopting a log-likelihood ratio algorithm based on a maximum posterior probability criterion, and the absolute value of the soft information can be used for representing the credibility of the soft decision. The demodulation method may be determined according to a modulation method predetermined by the first DCI, for example, the modulation method may be: the modulation modes such as binary Phase Shift keying (bpsk), quadrature Phase Shift keying (qpsk), quadrature Amplitude modulation (qam), etc. are used to increase the bandwidth, and are respectively suitable for channels in different situations.

Further, when determining the soft information of the value probability of each information bit, the signal-to-noise ratio of the soft information corresponding to each bit can be determined by a channel estimation method, and further, the signal-to-noise ratio of the soft demodulation information of the first DCI can be determined.

The coded data can be considered to be consistent with the data transmitted by the transmitting end only under the conditions of higher signal-to-noise ratio and stronger error correction capability of the code. Therefore, in a possible manner, when it is determined that the signal-to-noise ratio of the soft demodulation information of the first DCI is lower than the first signal-to-noise ratio threshold, it may be determined that the error rate of the first DCI is too high, and the reliability of the first DCI is too low, and the first DCI may be discarded.

When the signal-to-noise ratio of the soft demodulation information of the first DCI is greater than or equal to the first signal-to-noise ratio threshold, the value of the reliability of the first DCI may be determined according to the correspondence between the signal-to-noise ratio of the soft demodulation information and the reliability. The corresponding relationship between the signal-to-noise ratio of the soft demodulation information and the reliability can be determined by a zone mapping method, for example, the reliability of the first DCI can also be a number of one zone, and the soft demodulation information is mapped to a value zone of the reliability according to the value zone of the signal-to-noise ratio of the soft demodulation information, so as to determine the corresponding relationship between the signal-to-noise ratio of the soft demodulation information and the reliability.

The method for acquiring the soft demodulation information may include: and outputting probability soft information of each bit according to the received data.

In another possible implementation manner, the signal-to-noise ratio determined by the channel estimation of the first DCI may be compared with the average signal-to-noise ratio determined by the historical channel estimation, and a difference between the signal-to-noise ratio of the first DCI and the average signal-to-noise ratio is determined as an index of the reliability of the first DCI.

The average channel ratio determined by the historical channel estimation may be determined according to a plurality of channel ratios determined on the resource corresponding to the transmission DCI. For example, in a preset time period before the first DCI is received, the terminal device receives N DCIs, and when the N DCIs are demodulated, N signal-to-noise ratios may be determined, and then an average value of the N signal-to-noise ratios and a historical variance between the N signal-to-noise ratios may be determined according to the N signal-to-noise ratios. The preset time period may be determined according to a round trip time of the HARQ process indicated by the DCI, for example, 8-10ms in LTE, or may be determined according to big data, for example, in historical data within 1 month before the first DCI, the terminal device receives 10 DCIs in the same time period (for example, 8:00-8:01 in the morning), when demodulating 10 DCIs, 10 signal-to-noise ratios may be determined, and then an average value of the 10 signal-to-noise ratios and a historical variance between the 10 signal-to-noise ratios may be determined according to the 10 signal-to-noise ratios.

In a possible manner, when the snr of the first DCI is compared with the average snr, a difference between the snr of the first DCI and an average of N snrs may be used as an indicator of the reliability of the first DCI. For example, a corresponding relationship between a difference between the signal-to-noise ratio of the first DCI and the average signal-to-noise ratio and the reliability of the first DCI is established, where the corresponding relationship is negative correlation, that is, if it is determined that the difference between the signal-to-noise ratio of the first DCI and the average signal-to-noise ratio is larger, the value of the reliability of the first DCI is lower. For example, the reliability may be ranked, taking three levels as an example, if it is determined that a difference between the signal-to-noise ratio of the first DCI and an average value of the N signal-to-noise ratios is greater than a first preset threshold, the reliability of the first DCI is determined to be a third level; if the difference value between the signal-to-noise ratio of the first DCI and the average value of the N signal-to-noise ratios is smaller than or equal to a first preset threshold value and larger than a second preset threshold value, determining the reliability of the first DCI as a second level; and if the difference value between the signal-to-noise ratio of the first DCI and the average value of the N signal-to-noise ratios is smaller than or equal to a second preset threshold value, determining the reliability of the first DCI as a first level. The reliability of the first level is higher than that of the second level, and the reliability of the second level is higher than that of the third level. Of course, the reliability of the first DCI may also be an interval, a specific value may be set, and different accuracies may be set as needed, and the specific implementation may refer to the implementation of the correspondence between the signal-to-noise ratio of the soft demodulation information and the reliability, which is not described herein again.

In another possible way, the variance between the snr of the first DCI and the average snr may also be used as an indicator of the reliability of the first DCI. Specifically, when the snr of the first DCI is compared with the average snr, a first variance between the snr of the first DCI and the N snrs may be compared with a historical variance between the N snrs, and a difference between the first variance and the historical variance may be used as an index of the reliability of the first DCI. And the corresponding relation between the difference value between the first variance and the historical variance and the reliability is also negative correlation.

The above manner is merely an example, and the reliability of the first DCI may also be determined according to other parameters determined in the demodulation process of the DCI, which is not limited herein.

In this embodiment, the terminal device may use, as the first scheduling information indicated by the first DCI, the indication information of the first resource obtained by parsing the first DCI, the detection time of the first DCI, the reliability of the first DCI, and the HARQ process ID indicated by the first DCI.

S102, receiving a second DCI, wherein the DCI is used for indicating second scheduling information of a second resource; the type of the second resource is PUSCH or PDSCH;

wherein the second DCI may include at least one of: HARQ process ID, indication information of the first time domain resource. The second DCI is used to instruct the terminal device to transmit data on the second resource. The terminal device may refer to the parsing process of the first DCI for the parsing process of the second DCI, which is not described herein again. Similarly, the terminal device may use the indication information of the second resource obtained by parsing the second DCI, the detection time of the second DCI, the reliability of the second DCI, and the HARQ process ID indicated by the second DCI as the second scheduling information indicated by the second DCI.

And S103, when the first scheduling information conflicts with the second scheduling information, transmitting data on the first resource or transmitting data on the second resource according to one or more items of the reliability of the DCI, the time domain information of the first resource and the time domain information of the second resource.

Wherein the credibility of the DCI comprises: a confidence level of the first DCI and a confidence level of the second DCI. The specific process of determining whether there is scheduling information that conflicts with the first scheduling information may include the following various embodiments.

In one possible implementation, the terminal device may create a scheduling information buffer queue for the scheduling information obtained by parsing the DCI. For example, for scheduling of downlink data, the terminal device may create a PDSCH scheduling information buffer queue, and for scheduling of uplink data, the terminal device may create a PUSCH scheduling information buffer queue.

After determining that the first DCI satisfies the processing capability of the terminal device, the terminal device may store the first scheduling information corresponding to the first DCI in a corresponding scheduling information cache queue, for example, as shown in fig. 8A, assuming that the first time domain resource indicated by the first DCI is a PUSCH, the first indication information is stored in a PUSCH scheduling information cache queue, and the storage manner may be determined based on improving efficiency of determining a scheduling information conflict. For example, the scheduling information may be stored according to the order of the DCI detection time, for example, before the terminal device acquires the first DCI, the terminal device further stores 3 pieces of scheduling information, e.g., the second scheduling information, the third scheduling information, and the fourth scheduling information, in the PUSCH scheduling information buffer queue, and then may store the first scheduling information after the fourth scheduling information. Of course, the scheduling information may also be sorted according to the time domain resource indicated by the DCI, and stored in the scheduling information buffer queue correspondingly, which is not limited herein.

In a possible scenario, after the terminal device parses the first DCI, it determines that the first resource indicated by the first DCI is the PUSCH, and if it is determined that there is no scheduling information in the PUSCH scheduling information cache queue, the terminal device may determine that there is no scheduling information that conflicts with the first scheduling information.

In a possible scenario, after the terminal device analyzes the first DCI, it determines that the first resource indicated by the first DCI is the PUSCH, and then the terminal device traverses scheduling information in the PUSCH scheduling information cache queue in a PUSCH scheduling information cache queue, and compares whether there is scheduling information that conflicts with the first scheduling information.

For example, taking the 3 collision scenarios mentioned in the above embodiments as an example, the terminal device may first determine whether there is scheduling information that is the same as the first HARQ process ID in the first scheduling information, for example, if it is determined that the HARQ process ID of the second scheduling information is the same as the first HARQ process ID, determine whether the time corresponding to the first time domain resource in the first scheduling information is later than the detection time of the second DCI. And if the time corresponding to the first time domain resource is determined to be later than the detection time of the second DCI, confirming that the first scheduling information conflicts with the second scheduling information. At this time, it is further compared whether the first scheduling information conflicts with other scheduling information in the scheduling information buffer queue.

Further, the terminal device may determine whether there is a conflicting scheduling resource by comparing whether the time domain resource in each scheduling information in the scheduling information cache queue overlaps with the first time domain resource. For example, if the terminal device determines that the third scheduling information exists, and the third time domain resource of the third scheduling information overlaps with the time domain resource of the first scheduling information, it is determined that the first scheduling information conflicts with the third scheduling information.

For another example, the terminal device may determine whether there is a conflicting scheduling resource by comparing whether a time domain symbol corresponding to a time domain resource in each scheduling information in the scheduling information cache queue is later than a first time domain symbol corresponding to the first time domain resource. For example, if the terminal device determines that the fourth scheduling information exists, and the fourth time domain symbol corresponding to the fourth time domain resource of the fourth scheduling information is later than the time domain symbol corresponding to the time domain resource of the first scheduling information, it is determined that the first scheduling information and the fourth scheduling information collide.

And after traversing, confirming the scheduling information which conflicts with the first scheduling information in the scheduling information buffer queue.

It should be noted that the above comparison process is only an example, and a specifically adopted mode of confirming the scheduling information conflict may be confirmed according to a specific conflict scenario, which is not limited herein.

In another possible implementation manner, the terminal device may create a scheduling information cache table for the scheduling information obtained by analyzing the DCI, generate a corresponding table entry according to the types of different contents in each scheduling information, and further store the different contents of the corresponding scheduling information to the position in the table entry, so as to improve the efficiency of traversing the scheduling information. Taking the first DCI as the PUSCH example, the first scheduling information corresponding to the first DCI may include the following 4 items: sending time of PUSCH1, detecting time of first DCI, reliability of the first DCI, and HARQ process ID indicated by the first DCI; then, the scheduling information may be written into 4 entries of the PUSCH scheduling information cache table, and of course, a usage record entry of the first scheduling information may also be added, for example, if it is determined that the second scheduling information is already used for transmitting data, the usage record entry corresponding to the second scheduling information may be added with the usage record entry, and when comparing whether there is scheduling information in which the first scheduling information conflicts, the used scheduling information may be excluded.

By the scheme, when the terminal equipment determines the first scheduling information based on the first DCI, whether the scheduling information conflicts or not can be judged firstly, and data transmission is still carried out under the condition that the conflict between the scheduling information of the unsent transmission resources is avoided, so that the checking function is achieved, and the flexibility and the reliability of communication are improved.

The following describes a solution to determine that there is a conflict in the first scheduling information by comparing the analysis results of the first DCI and the second DCI, taking the PUSCH indicated by the first scheduling information and the second scheduling information as an example. In a possible implementation manner, if it is determined that the first scheduling information and the second scheduling information conflict, the terminal device may discard one piece of scheduling information at random, for example, if the terminal device discards the second scheduling information, the second scheduling information may be deleted from the scheduling buffer queue, and if it is determined that there is no conflicting scheduling information in the first scheduling information after deleting the second scheduling information, the terminal device may transmit data indicated by the first DCI on the first time domain resource corresponding to the first scheduling information.

In one possible design, the terminal device may determine to transmit data on the first resource or the second resource when the time domain symbol of the second resource is earlier than the time domain symbol of the first resource or the time domain symbol of the first resource and the time domain symbol of the second resource overlap.

Further, if the terminal device determines that the data indicated by the first DCI is transmitted on the first time domain resource corresponding to the first scheduling information, the first scheduling information in the scheduling cache queue may be deleted, so as to avoid affecting the judgment of the scheduling information conflict in the scheduling cache queue.

In another possible implementation manner, if it is determined that the first scheduling information conflicts with the second scheduling information, the terminal device may discard the scheduling information corresponding to the DCI with the low reliability according to the reliability of the first DCI and the reliability of the second DCI. For example, if the terminal device determines that the reliability of the first DCI is greater than that of the second DCI, the second scheduling information is deleted from the scheduling buffer queue, and if it is determined that the first scheduling information does not have conflicting scheduling information after the second scheduling information is deleted, the data indicated by the first DCI may be transmitted on the first time domain resource corresponding to the first scheduling information. Further, if the terminal device determines that the transmission of the data indicated by the first DCI on the first time domain resource corresponding to the first scheduling information is completed, the first scheduling information in the scheduling cache queue may be deleted, so as to avoid affecting the judgment of the scheduling information conflict in the scheduling cache queue. For another example, if the terminal device determines that the reliability of the first DCI is equal to the reliability of the second DCI, one piece of scheduling information may be discarded randomly.

In another possible implementation manner, if it is determined that the first scheduling information conflicts with the second scheduling information, the terminal device may discard all the first scheduling information and the second scheduling information, for example, if, in a first resource indicated by the first scheduling information and a second resource indicated by the second scheduling information, the first resource and the second resource are the same resource, at this time, all the first scheduling information and the second scheduling information may be discarded. For another example, if it is determined that the first scheduling information and the second scheduling information are the same HARQ process, all of the first scheduling information and the second scheduling information may be discarded.

Further, if the first scheduling information conflicts with both the second scheduling information and the third scheduling information, the conflicting scheduling information may be processed according to the priority of the scheduling information. The priority may include a priority determined by the reliability of the first DCI, and may further include a priority preset according to a resource type indicated by the scheduling information. For example, in one possible approach, if the reliability of the first DCI is determined to be greater than the first threshold, the priority of the first scheduling information may be set to a high priority, if the reliability of the first DCI is determined to be less than or equal to the first threshold and greater than the second threshold, the priority of the first scheduling information may be set to a medium priority, and if the reliability of the first DCI is determined to be less than or equal to the second threshold and greater than the third threshold, the priority of the first scheduling information may be set to a low priority. In another possible manner, if it is determined that the first resource indicated by the first scheduling information is a resource used for transmitting newly transmitted data, the priority of the first scheduling information may be set to be a high priority, and if it is determined that the first resource indicated by the first scheduling information is a resource used for transmitting retransmitted data, the priority of the first scheduling information may be set to be a medium priority; if it is determined that the first resource indicated by the first scheduling information is a resource used for transmitting feedback information, the priority of the first scheduling information may be set to be a low priority. The foregoing is merely an example, and in a specific implementation process, the priority of the scheduling information may also be determined according to other parameters, for example, the priority is determined according to the reliability of the DCI.

Of course, the priority of the scheduling information corresponding to the DCI may also be determined comprehensively according to the reliability of the DCI and the indicated resource type of the scheduling information. For example, the first-level priority may be determined according to the reliability of the DCI, and then the second-level priority may be determined according to the resource type indicated by the scheduling information, where the manner of determining the priority of each level may refer to the above-mentioned embodiment, and is not described herein again.

Considering that the first scheduling information of the first DCI may collide with a plurality of scheduling information, different collision manners may set different processing schemes. For example, if it is determined that the first scheduling information conflicts with the second scheduling information, the first scheduling information conflicts with the third scheduling information, but the second scheduling information and the third scheduling information do not conflict, the first scheduling information may be discarded. For another example, if the first scheduling information, the second scheduling information, and the third scheduling information all have conflicts with each other, the scheduling information with the highest reliability may be retained according to the reliabilities corresponding to the first scheduling information, the second scheduling information, and the third scheduling information, and the other 2 scheduling information may be discarded.

After the conflicting scheduling information is processed, the terminal device may perform scheduling according to the scheduling information in the scheduling information cache queue, for example, if it is determined that the first scheduling information is stored in the scheduling information cache queue after the conflicting scheduling information is processed, data may be transmitted on the first resource indicated by the first scheduling information. If the second scheduling information is determined to be stored in the scheduling information cache queue after the conflicting scheduling information is processed, the data can be transmitted on the second resource indicated by the second scheduling information.

In the above scheme, by comparing the analysis results of the first DCI and the second DCI, the analysis result of the first DCI or the second DCI is determined to be used, the transmission of the first data is determined, and then on the premise that the scheduling of the first scheduling information after the second scheduling information is determined does not have the scheduling information conflict of the same communication type, the transmission of the first data is performed on the first resource indicated by the first scheduling information.

An embodiment of the present application provides a data sending method, as shown in fig. 9A, including:

step 201: a first DCI is acquired.

The first scheduling information corresponding to the first DCI may include at least one of: HARQ process ID of PUSCH scheduling; DCI detection time; reliability obtained by DCI detection and sending time of PUSCH.

Step 202: and judging whether the time interval from the DCI to the PUSCH scheduling is smaller than the processing capacity of the terminal equipment. If yes, go to step 207; if not, go to step 203.

Step 203: judging whether the PUSCH scheduling information cache queue is empty or not according to the first scheduling information, if so, executing a step 206; if not, go to step 204.

Step 204: storing the first scheduling information into a PUSCH scheduling information cache queue, and judging whether the PUSCH scheduling information cache queue has scheduling information conflicting with the first scheduling information; if yes, go to step 205; if not, go to step 206.

Step 205: and processing the first scheduling information and the scheduling information which conflicts with the first scheduling information.

The processing procedure may be determined according to a specific scenario, for example, the first scheduling information may be discarded, and scheduling information in the PUSCH scheduling information buffer queue that conflicts with the first scheduling information may be retained. Alternatively, scheduling information in the PUSCH scheduling information buffering queue that conflicts with the first scheduling information may be discarded, and the first scheduling information may be retained. For another example, the first scheduling information and scheduling information in the PUSCH scheduling information buffering queue that conflicts with the first scheduling information may be discarded.

Further, the discarded scheduling information may be determined according to the reliability of the DCI in the conflicting scheduling information. For example, if it is determined that the reliability of the first scheduling information is greater than the reliability of the scheduling information in the PUSCH scheduling information buffer queue that conflicts with the first scheduling information, the scheduling information in the PUSCH scheduling information buffer queue that conflicts with the first scheduling information is discarded, and the first scheduling information is retained.

Step 206: and the terminal equipment transmits the data indicated by the DCI in the scheduling information on the transmission resource indicated by the scheduling information according to the scheduling information in the PUSCH scheduling information cache queue. For example, if the scheduling information used at this time is the first scheduling information, the first scheduling information is deleted from the PUSCH scheduling information buffer queue after data transmission or after data transmission using the first scheduling information is completed.

Step 207: the flow ends.

An embodiment of the present application provides a data receiving method, as shown in fig. 9B, including:

step 301: a first DCI is acquired.

The first scheduling information corresponding to the first DCI may include at least one of: HARQ process ID for PDSCH scheduling; DCI detection time; the reliability obtained by the DCI detection is the time for receiving data on the PDSCH first resource.

Step 302: and judging whether the time interval from the DCI to the PDSCH scheduling is smaller than the processing capacity of the terminal equipment. If yes, go to step 307; if not, go to step 303.

Step 303: judging whether a PDSCH scheduling information cache queue is empty or not according to the first scheduling information, if so, executing a step 306; if not, go to step 304.

Step 304: storing the first scheduling information into a PDSCH scheduling information cache queue, and judging whether the PDSCH scheduling information cache queue has scheduling information conflicting with the first scheduling information; if yes, go to step 305; if not, go to step 306.

Step 305: and processing the first scheduling information and the scheduling information which conflicts with the first scheduling information.

The processing procedure may be determined according to a specific scenario, and the specific implementation procedure may refer to the foregoing implementation manner, which is not described herein again.

Step 306: and the terminal equipment receives the data indicated by the DCI in the scheduling information on the transmission resources indicated by the scheduling information according to the scheduling information in the PDSCH scheduling information cache queue. For example, if the scheduling information used at this time is the first scheduling information, the first scheduling information is deleted from the PDSCH scheduling information buffer queue after the data reception or when the data reception using the first scheduling information is started.

Step 307: the flow ends.

The various embodiments described above can be combined with each other to achieve different technical effects.

The data transmission method provided in the embodiment of the present application is described above with reference to fig. 7, and based on the same inventive concept as the data transmission method, the embodiment of the present application further provides a communication device, as shown in fig. 10, a processing unit 1001 and a transceiver unit 1002 are included in a communication device 1000, and the communication device 1000 (hereinafter referred to as device 1000) can be used to implement the method performed in the embodiment. The apparatus 1000 may be a terminal device, may also be located in a terminal device, or may be a receiving end device or a sending end device.

The apparatus 1000 may be a terminal device, or may be a chip applied to a terminal device, or other combined device or component having the functions of the terminal device. When the apparatus 1000 is a terminal device, the transceiving unit may be a transceiver, and may include an antenna, a radio frequency circuit, and the like, and the processing module may be a processor, for example: a Central Processing Unit (CPU). When the apparatus 1000 is a component having the functions of the terminal device, the transceiver unit may be a radio frequency unit, and the processing module may be a processor. When the apparatus 1000 is a chip system, the transceiver unit may be an input/output interface of the chip system, and the processing module may be a processor of the chip system.

In one embodiment, the apparatus 1000 may be configured to perform the steps performed by the receiving end in the above method embodiments, or perform the steps performed by the sending end device.

Specifically, the transceiving unit 1002 is configured to receive a first DCI; the first DCI is used for indicating first scheduling information of a first resource, wherein the type of the first resource is PUSCH or PDSCH; receiving second DCI, wherein the second DCI is used for indicating second scheduling information of second resources; the type of the second resource is PUSCH or PDSCH; a processing unit 1001, configured to transmit data on a first resource or transmit data on a second resource according to one or more of the reliability of the DCI, time domain information of the first resource, and time domain information of the second resource when the first scheduling information conflicts with the second scheduling information; the reliability of the DCI includes: a confidence level of the first DCI and a confidence level of the second DCI.

It should be noted that, for the judgment of the conflict between the first scheduling information and the second scheduling information, reference may be made to the judgment method involved in the embodiment of the present application, and other judgment methods may also be used, which is not limited herein.

One possible design, the processing unit 1001, is specifically configured to: when the credibility of the first DCI is greater than or equal to the credibility of the second DCI, transmitting data on the first resource; or transmitting data on the second resource when the credibility of the first DCI is less than the credibility of the second DCI.

One possible design, the processing unit 1001, is specifically configured to: transmitting data on the first resource or the second resource when the time domain symbol of the second resource is earlier than the time domain symbol of the first resource or the time domain symbol of the first resource and the time domain symbol of the second resource are overlapped; the time domain information of the first resource comprises a time domain symbol of the first resource; the time domain information of the second resource includes a time domain symbol of the second resource.

One possible design, the processing unit 1001, is further configured to: determining that a time interval between the time of receiving the first DCI and the time of transmitting data on the first resource is greater than a first duration; the first duration is determined according to the UE capability of the terminal equipment; determining that a time interval between the time of receiving the second DCI and the time of transmitting data on the second resource is greater than a second duration; the second duration is determined according to the UE capability.

It should be noted that, the division of the modules in the embodiments of the present application is schematic, and is only a logical function division, and in actual implementation, there may be another division manner, and in addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or may exist alone physically, or two or more units are integrated in one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

Based on the same concept as the above data transmission method, as shown in fig. 11, the embodiment of the present application further provides a communication apparatus 1100. A communication apparatus 1100 (hereinafter, referred to as apparatus 1100) may be used to implement the method performed in the foregoing method embodiment, which may be referred to as the description in the foregoing method embodiment, where the apparatus 1100 may be a terminal device, or may be located in a terminal device, and may be a sending end device or a receiving end device.

The apparatus 1100 includes one or more processors 1101. The processor 1101 may be a general purpose processor, a special purpose processor, or the like. For example, a baseband processor, or a central processor. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control a communication device (e.g., a base station, a terminal, or a chip), execute a software program, and process data of the software program. The communication apparatus 1100 may include a transceiving unit to enable input (reception) and output (transmission) of signals. For example, the transceiver unit may be a transceiver, a radio frequency chip, or the like.

The apparatus 1100 includes one or more processors 1101, and the one or more processors 1101 may implement the method performed by the transmitting end device or the receiving end device in the above illustrated embodiments.

Optionally, the processor 1101 may also implement other functions besides the methods in the above-described illustrated embodiments.

Alternatively, in one design, processor 1101 may execute instructions that cause apparatus 1100 to perform the methods performed in the above-described method embodiments. The instructions may be stored in whole or in part within the processor 1101, such as the instructions 1103, or in whole or in part in a memory 1102 coupled to the processor 1101, such as the instructions 1104, or may collectively cause the apparatus 1100 to perform the methods performed in the above-described method embodiments, through the

instructions

1103 and 1104.

In yet another possible design, the communication apparatus 1100 may also include a circuit, which may implement the functions performed by the terminal device in the foregoing method embodiments.

In yet another possible design, one or more memories 1102 may be included in the apparatus 1100, on which instructions 1104 are stored, the instructions being executable on the processor to cause the apparatus 1100 to perform the method of transmitting data described in the above method embodiments. Optionally, the memory may also store data. Optionally, instructions and/or data may also be stored in the processor. For example, the one or more memories 1102 may store the association or correspondence described in the above embodiments, or the related parameters or tables referred to in the above embodiments, and the like. The processor and the memory may be provided separately or may be integrated or coupled together.

In yet another possible design, the apparatus 1100 may further include a transceiver unit 1105. The processor 1101 may be referred to as a processing unit and controls a device (terminal or base station). The transceiver unit 1105 may be called a transceiver, a transceiver circuit, or a transceiver, etc. for implementing transceiving of the apparatus.

For example, if the apparatus 1100 is a chip applied in a terminal device or other combined devices, components, etc. having the functions of the terminal device, the apparatus 1100 may include the transceiver 1105 therein.

In yet another possible design, the apparatus 1100 may further include a transceiver unit 1105 and an antenna 1106. The processor 1101 may be referred to as a processing unit and controls the apparatus. The transceiver unit 1105 may be referred to as a transceiver, a transceiver circuit, or a transceiver, etc. for implementing the transceiving function of the apparatus via the antenna 1106.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The method steps disclosed in connection with the embodiments of the present application may be directly embodied as being performed by a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

An embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a computer, implements the data transmission method applied to any method embodiment of the sending end device or the receiving end device.

The embodiments of the present application further provide a computer program product, which when executed by a computer implements the data transmission method applied to any method embodiment of the sending end device or the receiving end device.

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 includes one or more computer instructions. The processes or functions according to the embodiments of the present application are generated in whole or in part when the computer instructions are loaded and executed on a computer. 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 on a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). 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, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

The embodiment of the application also provides a processing device, which comprises a processor and an interface; a processor for performing the method of data transmission as described above for any of the method embodiments of the originating device or the first device.

It should be understood that the processing device may be a chip, and the processor may be implemented by hardware or software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor implemented by reading software code stored in a memory, which may be integrated with the processor or located external to the processor, and may exist as stand-alone devices.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

A method for transmitting data, comprising:

receiving first downlink control information, DCI; the first DCI is used for indicating first scheduling information of a first resource, and the type of the first resource is a Physical Uplink Shared Channel (PUSCH) or a Physical Downlink Shared Channel (PDSCH);

receiving second DCI, wherein the second DCI is used for indicating second scheduling information of second resources; the type of the second resource is PUSCH or PDSCH;

when the first scheduling information conflicts with the second scheduling information, transmitting data on the first resource or transmitting data on the second resource according to one or more items of the reliability of the DCI, the time domain information of the first resource and the time domain information of the second resource; the credibility of the DCI comprises: a confidence level of the first DCI and a confidence level of the second DCI.
The method of claim 1, wherein the first scheduling information conflicts with the second scheduling information, comprising:

the first resource and the second resource are of the same type, the HARQ process Identifiers (IDs) of the first resource and the second resource are the same, and the time for receiving the second DCI is earlier than the time for transmitting data on the first resource.
The method of claim 1, wherein the first scheduling information conflicts with the second scheduling information, comprising:

the first resource and the second resource are of the same type, the HARQ process IDs of the first resource and the second resource are different, and the time domain symbols of the first resource and the second resource are overlapped.
The method of claim 1, wherein the time domain information of the first resource comprises a time domain symbol of the first resource; the time domain information of the second resource comprises a time domain symbol of the second resource; the first scheduling information conflicts with the second scheduling information, including:

the first resource and the second resource are of the same type, the HARQ process IDs of the first resource and the second resource are different, and the time domain symbol of the second resource is earlier than the time domain symbol of the first resource.
The method of any one of claims 1-4, wherein the transmitting data on the first resource or transmitting data on the second resource according to one or more of the reliability of the DCI, the time domain information of the first resource, and the time domain information of the second resource comprises:

transmitting data on the first resource when the credibility of the first DCI is greater than or equal to the credibility of the second DCI; alternatively, the first and second electrodes may be,

and transmitting data on the second resource when the credibility of the first DCI is less than the credibility of the second DCI.
The method of any one of claims 1-4, wherein the time domain information of the first resource comprises a time domain symbol of the first resource; the time domain information of the second resource comprises a time domain symbol of the second resource; the transmitting data on the first resource or transmitting data on the second resource according to one or more items of the reliability of the DCI, the time domain information of the first resource, and the time domain information of the second resource includes:

and transmitting data on the first resource or the second resource when the time domain symbol of the second resource is earlier than the time domain symbol of the first resource or the time domain symbol of the first resource and the time domain symbol of the second resource are overlapped.
The method of any of claims 1-6, wherein the trustworthiness of the first DCI comprises one or more of: the signal-to-noise ratio of the soft demodulation information of the first DCI, and the difference value of the signal-to-noise ratio of the first DCI and the average value of historical signal-to-noise ratios;

the confidence level of the second DCI includes one or more of: the signal-to-noise ratio of the soft demodulation information of the second DCI, and the difference value of the signal-to-noise ratio of the second DCI and the average value of the historical signal-to-noise ratios.
The method of any one of claims 1-7, further comprising:

the time interval between the time of receiving the first DCI and the time of transmitting data on the first resource is greater than a first duration; the first duration is determined according to the UE capability of the terminal equipment;

the time interval between the time when the second DCI is received and the time when the data is transmitted on the second resource is longer than a second time length; the second duration is determined according to the UE capability.
An apparatus for transmitting data, comprising:

a transceiving unit configured to receive first downlink control information DCI; the first DCI is used for indicating first scheduling information of a first resource, and the type of the first resource is a Physical Uplink Shared Channel (PUSCH) or a Physical Downlink Shared Channel (PDSCH); receiving second DCI, wherein the second DCI is used for indicating second scheduling information of second resources; the type of the second resource is PUSCH or PDSCH;

a processing unit, configured to transmit data on the first resource or transmit data on the second resource according to one or more of the reliability of the DCI, the time domain information of the first resource, and the time domain information of the second resource when the first scheduling information conflicts with the second scheduling information; the credibility of the DCI comprises: a confidence level of the first DCI and a confidence level of the second DCI.
The apparatus of claim 9, wherein the first scheduling information conflicts with the second scheduling information, comprising:

the first resource and the second resource are of the same type, the HARQ process Identifiers (IDs) of the first resource and the second resource are the same, and the time for receiving the second DCI is earlier than the time for transmitting data on the first resource.
The apparatus of claim 9, wherein the first scheduling information conflicts with the second scheduling information, comprising:

the first resource and the second resource are of the same type, the HARQ process IDs of the first resource and the second resource are different, and the time domain symbols of the first resource and the second resource are overlapped.
The apparatus of claim 9, wherein the time domain information for the first resource comprises a time domain symbol for the first resource; the time domain information of the second resource comprises a time domain symbol of the second resource; the first scheduling information conflicts with the second scheduling information, including:

the first resource and the second resource are of the same type, the HARQ process IDs of the first resource and the second resource are different, and the time domain symbol of the second resource is earlier than the time domain symbol of the first resource.
The apparatus according to any one of claims 9 to 12, wherein the processing unit is specifically configured to:

transmitting data on the first resource when the credibility of the first DCI is greater than or equal to the credibility of the second DCI; alternatively, the first and second electrodes may be,

and transmitting data on the second resource when the credibility of the first DCI is less than the credibility of the second DCI.
The apparatus according to any one of claims 9 to 12, wherein the processing unit is specifically configured to:

transmitting data on the first resource or the second resource when the time domain symbol of the second resource is earlier than the time domain symbol of the first resource or the time domain symbol of the first resource and the time domain symbol of the second resource overlap; the time domain information of the first resource comprises a time domain symbol of the first resource; the time domain information of the second resource comprises a time domain symbol of the second resource.
The apparatus of any one of claims 9-14, wherein the trustworthiness of the first DCI comprises one or more of: the signal-to-noise ratio of the soft demodulation information of the first DCI, and the difference value of the signal-to-noise ratio of the first DCI and the average value of historical signal-to-noise ratios;

the confidence level of the second DCI includes one or more of: the signal-to-noise ratio of the soft demodulation information of the second DCI, and the difference value of the signal-to-noise ratio of the second DCI and the average value of the historical signal-to-noise ratios.
The apparatus of any of claims 9-15, wherein the processing unit is further to:

determining that a time interval between a time when the first DCI is received and a time when data is transmitted on the first resource is greater than a first duration; the first duration is determined according to the UE capability of the terminal equipment;

determining that a time interval between the time when the second DCI is received and the time when the data is transmitted on the second resource is greater than a second duration; the second duration is determined according to the UE capability.
A communication apparatus, the apparatus comprising a processor and a communication interface,

the communication interface is used for inputting and/or outputting information;

the processor for executing a computer program or instructions to cause the method of any of claims 1-8 to be performed.
A chip system comprising a processor, wherein the chip system comprises at least one processor and a transceiver, wherein the transceiver and the at least one processor are interconnected by a line, and wherein the processor executes instructions to perform the method according to any one of claims 1 to 8.
A computer-readable storage medium having stored thereon computer-executable instructions which, when invoked by a computer, cause the computer to perform the method of any of claims 1 to 8.
A computer program product, characterized in that the computer program product stores a computer program comprising program instructions which, when executed by a computer, cause the computer to carry out the method according to any one of claims 1-8.